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- value, a CanvasGradient object (a linear or\n * radial gradient) or a CanvasPattern object (a repetitive\n * image). The default value is 'rgb(255,255,255)'.\n */\n\n/**\n * PDF page operator list.\n *\n * @typedef {Object} PDFOperatorList\n * @property {Array} fnArray - Array containing the operator functions.\n * @property {Array} argsArray - Array containing the arguments of the\n * functions.\n */\n\n/**\n * Proxy to a PDFPage in the worker thread.\n * @class\n * @alias PDFPageProxy\n */\nvar PDFPageProxy = (function PDFPageProxyClosure() {\n function PDFPageProxy(pageIndex, pageInfo, transport) {\n this.pageIndex = pageIndex;\n this.pageInfo = pageInfo;\n this.transport = transport;\n this.stats = new StatTimer();\n this.stats.enabled = getDefaultSetting('enableStats');\n this.commonObjs = transport.commonObjs;\n this.objs = new PDFObjects();\n this.cleanupAfterRender = false;\n this.pendingCleanup = false;\n this.intentStates = Object.create(null);\n this.destroyed = false;\n }\n PDFPageProxy.prototype = /** @lends PDFPageProxy.prototype */ {\n /**\n * @return {number} Page number of the page. First page is 1.\n */\n get pageNumber() {\n return this.pageIndex + 1;\n },\n /**\n * @return {number} The number of degrees the page is rotated clockwise.\n */\n get rotate() {\n return this.pageInfo.rotate;\n },\n /**\n * @return {Object} The reference that points to this page. It has 'num' and\n * 'gen' properties.\n */\n get ref() {\n return this.pageInfo.ref;\n },\n /**\n * @return {number} The default size of units in 1/72nds of an inch.\n */\n get userUnit() {\n return this.pageInfo.userUnit;\n },\n /**\n * @return {Array} An array of the visible portion of the PDF page in the\n * user space units - [x1, y1, x2, y2].\n */\n get view() {\n return this.pageInfo.view;\n },\n /**\n * @param {number} scale The desired scale of the viewport.\n * @param {number} rotate Degrees to rotate the viewport. If omitted this\n * defaults to the page rotation.\n * @return {PageViewport} Contains 'width' and 'height' properties\n * along with transforms required for rendering.\n */\n getViewport: function PDFPageProxy_getViewport(scale, rotate) {\n if (arguments.length < 2) {\n rotate = this.rotate;\n }\n return new PageViewport(this.view, scale, rotate, 0, 0);\n },\n /**\n * @param {GetAnnotationsParameters} params - Annotation parameters.\n * @return {Promise} A promise that is resolved with an {Array} of the\n * annotation objects.\n */\n getAnnotations: function PDFPageProxy_getAnnotations(params) {\n var intent = (params && params.intent) || null;\n\n if (!this.annotationsPromise || this.annotationsIntent !== intent) {\n this.annotationsPromise = this.transport.getAnnotations(this.pageIndex,\n intent);\n this.annotationsIntent = intent;\n }\n return this.annotationsPromise;\n },\n /**\n * Begins the process of rendering a page to the desired context.\n * @param {RenderParameters} params Page render parameters.\n * @return {RenderTask} An object that contains the promise, which\n * is resolved when the page finishes rendering.\n */\n render: function PDFPageProxy_render(params) {\n var stats = this.stats;\n stats.time('Overall');\n\n // If there was a pending destroy cancel it so no cleanup happens during\n // this call to render.\n this.pendingCleanup = false;\n\n var renderingIntent = (params.intent === 'print' ? 'print' : 'display');\n var canvasFactory = params.canvasFactory || new DOMCanvasFactory();\n\n if (!this.intentStates[renderingIntent]) {\n this.intentStates[renderingIntent] = Object.create(null);\n }\n var intentState = this.intentStates[renderingIntent];\n\n // If there's no displayReadyCapability yet, then the operatorList\n // was never requested before. Make the request and create the promise.\n if (!intentState.displayReadyCapability) {\n intentState.receivingOperatorList = true;\n intentState.displayReadyCapability = createPromiseCapability();\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false,\n };\n\n this.stats.time('Page Request');\n this.transport.messageHandler.send('RenderPageRequest', {\n pageIndex: this.pageNumber - 1,\n intent: renderingIntent,\n renderInteractiveForms: (params.renderInteractiveForms === true),\n });\n }\n\n var complete = (error) => {\n var i = intentState.renderTasks.indexOf(internalRenderTask);\n if (i >= 0) {\n intentState.renderTasks.splice(i, 1);\n }\n\n if (this.cleanupAfterRender) {\n this.pendingCleanup = true;\n }\n this._tryCleanup();\n\n if (error) {\n internalRenderTask.capability.reject(error);\n } else {\n internalRenderTask.capability.resolve();\n }\n stats.timeEnd('Rendering');\n stats.timeEnd('Overall');\n };\n\n var internalRenderTask = new InternalRenderTask(complete, params,\n this.objs,\n this.commonObjs,\n intentState.operatorList,\n this.pageNumber,\n canvasFactory);\n internalRenderTask.useRequestAnimationFrame = renderingIntent !== 'print';\n if (!intentState.renderTasks) {\n intentState.renderTasks = [];\n }\n intentState.renderTasks.push(internalRenderTask);\n var renderTask = internalRenderTask.task;\n\n // Obsolete parameter support\n if (params.continueCallback) {\n deprecated('render is used with continueCallback parameter');\n renderTask.onContinue = params.continueCallback;\n }\n\n intentState.displayReadyCapability.promise.then((transparency) => {\n if (this.pendingCleanup) {\n complete();\n return;\n }\n stats.time('Rendering');\n internalRenderTask.initializeGraphics(transparency);\n internalRenderTask.operatorListChanged();\n }).catch(complete);\n\n return renderTask;\n },\n\n /**\n * @return {Promise} A promise resolved with an {@link PDFOperatorList}\n * object that represents page's operator list.\n */\n getOperatorList: function PDFPageProxy_getOperatorList() {\n function operatorListChanged() {\n if (intentState.operatorList.lastChunk) {\n intentState.opListReadCapability.resolve(intentState.operatorList);\n\n var i = intentState.renderTasks.indexOf(opListTask);\n if (i >= 0) {\n intentState.renderTasks.splice(i, 1);\n }\n }\n }\n\n var renderingIntent = 'oplist';\n if (!this.intentStates[renderingIntent]) {\n this.intentStates[renderingIntent] = Object.create(null);\n }\n var intentState = this.intentStates[renderingIntent];\n var opListTask;\n\n if (!intentState.opListReadCapability) {\n opListTask = {};\n opListTask.operatorListChanged = operatorListChanged;\n intentState.receivingOperatorList = true;\n intentState.opListReadCapability = createPromiseCapability();\n intentState.renderTasks = [];\n intentState.renderTasks.push(opListTask);\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false,\n };\n\n this.transport.messageHandler.send('RenderPageRequest', {\n pageIndex: this.pageIndex,\n intent: renderingIntent,\n });\n }\n return intentState.opListReadCapability.promise;\n },\n\n /**\n * @param {getTextContentParameters} params - getTextContent parameters.\n * @return {ReadableStream} ReadableStream to read textContent chunks.\n */\n streamTextContent(params = {}) {\n const TEXT_CONTENT_CHUNK_SIZE = 100;\n return this.transport.messageHandler.sendWithStream('GetTextContent', {\n pageIndex: this.pageNumber - 1,\n normalizeWhitespace: (params.normalizeWhitespace === true),\n combineTextItems: (params.disableCombineTextItems !== true),\n }, {\n highWaterMark: TEXT_CONTENT_CHUNK_SIZE,\n size(textContent) {\n return textContent.items.length;\n },\n });\n },\n\n /**\n * @param {getTextContentParameters} params - getTextContent parameters.\n * @return {Promise} That is resolved a {@link TextContent}\n * object that represent the page text content.\n */\n getTextContent: function PDFPageProxy_getTextContent(params) {\n params = params || {};\n let readableStream = this.streamTextContent(params);\n\n return new Promise(function(resolve, reject) {\n function pump() {\n reader.read().then(function({ value, done, }) {\n if (done) {\n resolve(textContent);\n return;\n }\n Util.extendObj(textContent.styles, value.styles);\n Util.appendToArray(textContent.items, value.items);\n pump();\n }, reject);\n }\n\n let reader = readableStream.getReader();\n let textContent = {\n items: [],\n styles: Object.create(null),\n };\n\n pump();\n });\n },\n\n /**\n * Destroys page object.\n */\n _destroy: function PDFPageProxy_destroy() {\n this.destroyed = true;\n this.transport.pageCache[this.pageIndex] = null;\n\n var waitOn = [];\n Object.keys(this.intentStates).forEach(function(intent) {\n if (intent === 'oplist') {\n // Avoid errors below, since the renderTasks are just stubs.\n return;\n }\n var intentState = this.intentStates[intent];\n intentState.renderTasks.forEach(function(renderTask) {\n var renderCompleted = renderTask.capability.promise.\n catch(function () {}); // ignoring failures\n waitOn.push(renderCompleted);\n renderTask.cancel();\n });\n }, this);\n this.objs.clear();\n this.annotationsPromise = null;\n this.pendingCleanup = false;\n return Promise.all(waitOn);\n },\n\n /**\n * Cleans up resources allocated by the page. (deprecated)\n */\n destroy() {\n deprecated('page destroy method, use cleanup() instead');\n this.cleanup();\n },\n\n /**\n * Cleans up resources allocated by the page.\n */\n cleanup: function PDFPageProxy_cleanup() {\n this.pendingCleanup = true;\n this._tryCleanup();\n },\n /**\n * For internal use only. Attempts to clean up if rendering is in a state\n * where that's possible.\n * @ignore\n */\n _tryCleanup: function PDFPageProxy_tryCleanup() {\n if (!this.pendingCleanup ||\n Object.keys(this.intentStates).some(function(intent) {\n var intentState = this.intentStates[intent];\n return (intentState.renderTasks.length !== 0 ||\n intentState.receivingOperatorList);\n }, this)) {\n return;\n }\n\n Object.keys(this.intentStates).forEach(function(intent) {\n delete this.intentStates[intent];\n }, this);\n this.objs.clear();\n this.annotationsPromise = null;\n this.pendingCleanup = false;\n },\n /**\n * For internal use only.\n * @ignore\n */\n _startRenderPage: function PDFPageProxy_startRenderPage(transparency,\n intent) {\n var intentState = this.intentStates[intent];\n // TODO Refactor RenderPageRequest to separate rendering\n // and operator list logic\n if (intentState.displayReadyCapability) {\n intentState.displayReadyCapability.resolve(transparency);\n }\n },\n /**\n * For internal use only.\n * @ignore\n */\n _renderPageChunk: function PDFPageProxy_renderPageChunk(operatorListChunk,\n intent) {\n var intentState = this.intentStates[intent];\n var i, ii;\n // Add the new chunk to the current operator list.\n for (i = 0, ii = operatorListChunk.length; i < ii; i++) {\n intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);\n intentState.operatorList.argsArray.push(\n operatorListChunk.argsArray[i]);\n }\n intentState.operatorList.lastChunk = operatorListChunk.lastChunk;\n\n // Notify all the rendering tasks there are more operators to be consumed.\n for (i = 0; i < intentState.renderTasks.length; i++) {\n intentState.renderTasks[i].operatorListChanged();\n }\n\n if (operatorListChunk.lastChunk) {\n intentState.receivingOperatorList = false;\n this._tryCleanup();\n }\n },\n };\n return PDFPageProxy;\n})();\n\nclass LoopbackPort {\n constructor(defer) {\n this._listeners = [];\n this._defer = defer;\n this._deferred = Promise.resolve(undefined);\n }\n\n postMessage(obj, transfers) {\n function cloneValue(value) {\n // Trying to perform a structured clone close to the spec, including\n // transfers.\n if (typeof value !== 'object' || value === null) {\n return value;\n }\n if (cloned.has(value)) { // already cloned the object\n return cloned.get(value);\n }\n var result;\n var buffer;\n if ((buffer = value.buffer) && isArrayBuffer(buffer)) {\n // We found object with ArrayBuffer (typed array).\n var transferable = transfers && transfers.indexOf(buffer) >= 0;\n if (value === buffer) {\n // Special case when we are faking typed arrays in compatibility.js.\n result = value;\n } else if (transferable) {\n result = new value.constructor(buffer, value.byteOffset,\n value.byteLength);\n } else {\n result = new value.constructor(value);\n }\n cloned.set(value, result);\n return result;\n }\n result = isArray(value) ? [] : {};\n cloned.set(value, result); // adding to cache now for cyclic references\n // Cloning all value and object properties, however ignoring properties\n // defined via getter.\n for (var i in value) {\n var desc, p = value;\n while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {\n p = Object.getPrototypeOf(p);\n }\n if (typeof desc.value === 'undefined' ||\n typeof desc.value === 'function') {\n continue;\n }\n result[i] = cloneValue(desc.value);\n }\n return result;\n }\n\n if (!this._defer) {\n this._listeners.forEach(function (listener) {\n listener.call(this, { data: obj, });\n }, this);\n return;\n }\n\n var cloned = new WeakMap();\n var e = { data: cloneValue(obj), };\n this._deferred.then(() => {\n this._listeners.forEach(function (listener) {\n listener.call(this, e);\n }, this);\n });\n }\n\n addEventListener(name, listener) {\n this._listeners.push(listener);\n }\n\n removeEventListener(name, listener) {\n var i = this._listeners.indexOf(listener);\n this._listeners.splice(i, 1);\n }\n\n terminate() {\n this._listeners = [];\n }\n}\n\n/**\n * PDF.js web worker abstraction, it controls instantiation of PDF documents and\n * WorkerTransport for them. If creation of a web worker is not possible,\n * a \"fake\" worker will be used instead.\n * @class\n */\nvar PDFWorker = (function PDFWorkerClosure() {\n let nextFakeWorkerId = 0;\n\n function getWorkerSrc() {\n if (typeof workerSrc !== 'undefined') {\n return workerSrc;\n }\n if (getDefaultSetting('workerSrc')) {\n return getDefaultSetting('workerSrc');\n }\n if (typeof PDFJSDev !== 'undefined' &&\n PDFJSDev.test('PRODUCTION && !(MOZCENTRAL || FIREFOX)') &&\n pdfjsFilePath) {\n return pdfjsFilePath.replace(/(\\.(?:min\\.)?js)(\\?.*)?$/i, '.worker$1$2');\n }\n throw new Error('No PDFJS.workerSrc specified');\n }\n\n let fakeWorkerFilesLoadedCapability;\n\n // Loads worker code into main thread.\n function setupFakeWorkerGlobal() {\n var WorkerMessageHandler;\n if (fakeWorkerFilesLoadedCapability) {\n return fakeWorkerFilesLoadedCapability.promise;\n }\n fakeWorkerFilesLoadedCapability = createPromiseCapability();\n // In the developer build load worker_loader which in turn loads all the\n // other files and resolves the promise. In production only the\n // pdf.worker.js file is needed.\n if (typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')) {\n if (typeof SystemJS === 'object') {\n SystemJS.import('pdfjs/core/worker').then((worker) => {\n WorkerMessageHandler = worker.WorkerMessageHandler;\n fakeWorkerFilesLoadedCapability.resolve(WorkerMessageHandler);\n });\n } else if (typeof require === 'function') {\n var worker = require('../core/worker.js');\n WorkerMessageHandler = worker.WorkerMessageHandler;\n fakeWorkerFilesLoadedCapability.resolve(WorkerMessageHandler);\n } else {\n throw new Error(\n 'SystemJS or CommonJS must be used to load fake worker.');\n }\n } else if (PDFJSDev.test('SINGLE_FILE')) {\n var pdfjsCoreWorker = require('../core/worker.js');\n WorkerMessageHandler = pdfjsCoreWorker.WorkerMessageHandler;\n fakeWorkerFilesLoadedCapability.resolve(WorkerMessageHandler);\n } else {\n var loader = fakeWorkerFilesLoader || function (callback) {\n Util.loadScript(getWorkerSrc(), function () {\n callback(window.pdfjsDistBuildPdfWorker.WorkerMessageHandler);\n });\n };\n loader(fakeWorkerFilesLoadedCapability.resolve);\n }\n return fakeWorkerFilesLoadedCapability.promise;\n }\n\n function createCDNWrapper(url) {\n // We will rely on blob URL's property to specify origin.\n // We want this function to fail in case if createObjectURL or Blob do not\n // exist or fail for some reason -- our Worker creation will fail anyway.\n var wrapper = 'importScripts(\\'' + url + '\\');';\n return URL.createObjectURL(new Blob([wrapper]));\n }\n\n let pdfWorkerPorts = new WeakMap();\n\n function PDFWorker(name, port) {\n if (port && pdfWorkerPorts.has(port)) {\n throw new Error('Cannot use more than one PDFWorker per port');\n }\n\n this.name = name;\n this.destroyed = false;\n this.postMessageTransfers = true;\n\n this._readyCapability = createPromiseCapability();\n this._port = null;\n this._webWorker = null;\n this._messageHandler = null;\n\n if (port) {\n pdfWorkerPorts.set(port, this);\n this._initializeFromPort(port);\n return;\n }\n\n this._initialize();\n }\n\n PDFWorker.prototype = /** @lends PDFWorker.prototype */ {\n get promise() {\n return this._readyCapability.promise;\n },\n\n get port() {\n return this._port;\n },\n\n get messageHandler() {\n return this._messageHandler;\n },\n\n _initializeFromPort: function PDFWorker_initializeFromPort(port) {\n this._port = port;\n this._messageHandler = new MessageHandler('main', 'worker', port);\n this._messageHandler.on('ready', function () {\n // Ignoring 'ready' event -- MessageHandler shall be already initialized\n // and ready to accept the messages.\n });\n this._readyCapability.resolve();\n },\n\n _initialize: function PDFWorker_initialize() {\n // If worker support isn't disabled explicit and the browser has worker\n // support, create a new web worker and test if it/the browser fulfills\n // all requirements to run parts of pdf.js in a web worker.\n // Right now, the requirement is, that an Uint8Array is still an\n // Uint8Array as it arrives on the worker. (Chrome added this with v.15.)\n if ((typeof PDFJSDev === 'undefined' || !PDFJSDev.test('SINGLE_FILE')) &&\n !isWorkerDisabled && !getDefaultSetting('disableWorker') &&\n typeof Worker !== 'undefined') {\n var workerSrc = getWorkerSrc();\n\n try {\n // Wraps workerSrc path into blob URL, if the former does not belong\n // to the same origin.\n if (typeof PDFJSDev !== 'undefined' && PDFJSDev.test('GENERIC') &&\n !isSameOrigin(window.location.href, workerSrc)) {\n workerSrc = createCDNWrapper(\n new URL(workerSrc, window.location).href);\n }\n\n // Some versions of FF can't create a worker on localhost, see:\n // https://bugzilla.mozilla.org/show_bug.cgi?id=683280\n var worker = new Worker(workerSrc);\n var messageHandler = new MessageHandler('main', 'worker', worker);\n var terminateEarly = () => {\n worker.removeEventListener('error', onWorkerError);\n messageHandler.destroy();\n worker.terminate();\n if (this.destroyed) {\n this._readyCapability.reject(new Error('Worker was destroyed'));\n } else {\n // Fall back to fake worker if the termination is caused by an\n // error (e.g. NetworkError / SecurityError).\n this._setupFakeWorker();\n }\n };\n\n var onWorkerError = () => {\n if (!this._webWorker) {\n // Worker failed to initialize due to an error. Clean up and fall\n // back to the fake worker.\n terminateEarly();\n }\n };\n worker.addEventListener('error', onWorkerError);\n\n messageHandler.on('test', (data) => {\n worker.removeEventListener('error', onWorkerError);\n if (this.destroyed) {\n terminateEarly();\n return; // worker was destroyed\n }\n var supportTypedArray = data && data.supportTypedArray;\n if (supportTypedArray) {\n this._messageHandler = messageHandler;\n this._port = worker;\n this._webWorker = worker;\n if (!data.supportTransfers) {\n this.postMessageTransfers = false;\n isPostMessageTransfersDisabled = true;\n }\n this._readyCapability.resolve();\n // Send global setting, e.g. verbosity level.\n messageHandler.send('configure', {\n verbosity: getVerbosityLevel(),\n });\n } else {\n this._setupFakeWorker();\n messageHandler.destroy();\n worker.terminate();\n }\n });\n\n messageHandler.on('console_log', function (data) {\n console.log.apply(console, data);\n });\n messageHandler.on('console_error', function (data) {\n console.error.apply(console, data);\n });\n\n messageHandler.on('ready', (data) => {\n worker.removeEventListener('error', onWorkerError);\n if (this.destroyed) {\n terminateEarly();\n return; // worker was destroyed\n }\n try {\n sendTest();\n } catch (e) {\n // We need fallback to a faked worker.\n this._setupFakeWorker();\n }\n });\n\n var sendTest = function () {\n var postMessageTransfers =\n getDefaultSetting('postMessageTransfers') &&\n !isPostMessageTransfersDisabled;\n var testObj = new Uint8Array([postMessageTransfers ? 255 : 0]);\n // Some versions of Opera throw a DATA_CLONE_ERR on serializing the\n // typed array. Also, checking if we can use transfers.\n try {\n messageHandler.send('test', testObj, [testObj.buffer]);\n } catch (ex) {\n info('Cannot use postMessage transfers');\n testObj[0] = 0;\n messageHandler.send('test', testObj);\n }\n };\n\n // It might take time for worker to initialize (especially when AMD\n // loader is used). We will try to send test immediately, and then\n // when 'ready' message will arrive. The worker shall process only\n // first received 'test'.\n sendTest();\n return;\n } catch (e) {\n info('The worker has been disabled.');\n }\n }\n // Either workers are disabled, not supported or have thrown an exception.\n // Thus, we fallback to a faked worker.\n this._setupFakeWorker();\n },\n\n _setupFakeWorker: function PDFWorker_setupFakeWorker() {\n if (!isWorkerDisabled && !getDefaultSetting('disableWorker')) {\n warn('Setting up fake worker.');\n isWorkerDisabled = true;\n }\n\n setupFakeWorkerGlobal().then((WorkerMessageHandler) => {\n if (this.destroyed) {\n this._readyCapability.reject(new Error('Worker was destroyed'));\n return;\n }\n\n // We cannot turn on proper fake port simulation (this includes\n // structured cloning) when typed arrays are not supported. Relying\n // on a chance that messages will be sent in proper order.\n var isTypedArraysPresent = Uint8Array !== Float32Array;\n var port = new LoopbackPort(isTypedArraysPresent);\n this._port = port;\n\n // All fake workers use the same port, making id unique.\n var id = 'fake' + (nextFakeWorkerId++);\n\n // If the main thread is our worker, setup the handling for the\n // messages -- the main thread sends to it self.\n var workerHandler = new MessageHandler(id + '_worker', id, port);\n WorkerMessageHandler.setup(workerHandler, port);\n\n var messageHandler = new MessageHandler(id, id + '_worker', port);\n this._messageHandler = messageHandler;\n this._readyCapability.resolve();\n });\n },\n\n /**\n * Destroys the worker instance.\n */\n destroy: function PDFWorker_destroy() {\n this.destroyed = true;\n if (this._webWorker) {\n // We need to terminate only web worker created resource.\n this._webWorker.terminate();\n this._webWorker = null;\n }\n pdfWorkerPorts.delete(this._port);\n this._port = null;\n if (this._messageHandler) {\n this._messageHandler.destroy();\n this._messageHandler = null;\n }\n },\n };\n\n PDFWorker.fromPort = function (port) {\n if (pdfWorkerPorts.has(port)) {\n return pdfWorkerPorts.get(port);\n }\n return new PDFWorker(null, port);\n };\n\n return PDFWorker;\n})();\n\n/**\n * For internal use only.\n * @ignore\n */\nvar WorkerTransport = (function WorkerTransportClosure() {\n function WorkerTransport(messageHandler, loadingTask, networkStream,\n CMapReaderFactory) {\n this.messageHandler = messageHandler;\n this.loadingTask = loadingTask;\n this.commonObjs = new PDFObjects();\n this.fontLoader = new FontLoader(loadingTask.docId);\n this.CMapReaderFactory = new CMapReaderFactory({\n baseUrl: getDefaultSetting('cMapUrl'),\n isCompressed: getDefaultSetting('cMapPacked'),\n });\n\n this.destroyed = false;\n this.destroyCapability = null;\n this._passwordCapability = null;\n\n this._networkStream = networkStream;\n this._fullReader = null;\n this._lastProgress = null;\n\n this.pageCache = [];\n this.pagePromises = [];\n this.downloadInfoCapability = createPromiseCapability();\n\n this.setupMessageHandler();\n }\n WorkerTransport.prototype = {\n destroy: function WorkerTransport_destroy() {\n if (this.destroyCapability) {\n return this.destroyCapability.promise;\n }\n\n this.destroyed = true;\n this.destroyCapability = createPromiseCapability();\n\n if (this._passwordCapability) {\n this._passwordCapability.reject(\n new Error('Worker was destroyed during onPassword callback'));\n }\n\n var waitOn = [];\n // We need to wait for all renderings to be completed, e.g.\n // timeout/rAF can take a long time.\n this.pageCache.forEach(function (page) {\n if (page) {\n waitOn.push(page._destroy());\n }\n });\n this.pageCache = [];\n this.pagePromises = [];\n // We also need to wait for the worker to finish its long running tasks.\n var terminated = this.messageHandler.sendWithPromise('Terminate', null);\n waitOn.push(terminated);\n Promise.all(waitOn).then(() => {\n this.fontLoader.clear();\n if (this._networkStream) {\n this._networkStream.cancelAllRequests();\n }\n\n if (this.messageHandler) {\n this.messageHandler.destroy();\n this.messageHandler = null;\n }\n this.destroyCapability.resolve();\n }, this.destroyCapability.reject);\n return this.destroyCapability.promise;\n },\n\n setupMessageHandler: function WorkerTransport_setupMessageHandler() {\n var messageHandler = this.messageHandler;\n var loadingTask = this.loadingTask;\n\n messageHandler.on('GetReader', function(data, sink) {\n assert(this._networkStream);\n this._fullReader = this._networkStream.getFullReader();\n this._fullReader.onProgress = (evt) => {\n this._lastProgress = {\n loaded: evt.loaded,\n total: evt.total,\n };\n };\n sink.onPull = () => {\n this._fullReader.read().then(function({ value, done, }) {\n if (done) {\n sink.close();\n return;\n }\n assert(isArrayBuffer(value));\n // Enqueue data chunk into sink, and transfer it\n // to other side as `Transferable` object.\n sink.enqueue(new Uint8Array(value), 1, [value]);\n }).catch((reason) => {\n sink.error(reason);\n });\n };\n\n sink.onCancel = (reason) => {\n this._fullReader.cancel(reason);\n };\n }, this);\n\n messageHandler.on('ReaderHeadersReady', function(data) {\n let headersCapability = createPromiseCapability();\n let fullReader = this._fullReader;\n fullReader.headersReady.then(() => {\n // If stream or range are disabled, it's our only way to report\n // loading progress.\n if (!fullReader.isStreamingSupported ||\n !fullReader.isRangeSupported) {\n if (this._lastProgress) {\n let loadingTask = this.loadingTask;\n if (loadingTask.onProgress) {\n loadingTask.onProgress(this._lastProgress);\n }\n }\n fullReader.onProgress = (evt) => {\n let loadingTask = this.loadingTask;\n if (loadingTask.onProgress) {\n loadingTask.onProgress({\n loaded: evt.loaded,\n total: evt.total,\n });\n }\n };\n }\n\n headersCapability.resolve({\n isStreamingSupported: fullReader.isStreamingSupported,\n isRangeSupported: fullReader.isRangeSupported,\n contentLength: fullReader.contentLength,\n });\n }, headersCapability.reject);\n\n return headersCapability.promise;\n }, this);\n\n messageHandler.on('GetRangeReader', function(data, sink) {\n assert(this._networkStream);\n let _rangeReader =\n this._networkStream.getRangeReader(data.begin, data.end);\n\n sink.onPull = () => {\n _rangeReader.read().then(function({ value, done, }) {\n if (done) {\n sink.close();\n return;\n }\n assert(isArrayBuffer(value));\n sink.enqueue(new Uint8Array(value), 1, [value]);\n }).catch((reason) => {\n sink.error(reason);\n });\n };\n\n sink.onCancel = (reason) => {\n _rangeReader.cancel(reason);\n };\n }, this);\n\n messageHandler.on('GetDoc', function transportDoc(data) {\n var pdfInfo = data.pdfInfo;\n this.numPages = data.pdfInfo.numPages;\n var loadingTask = this.loadingTask;\n var pdfDocument = new PDFDocumentProxy(pdfInfo, this, loadingTask);\n this.pdfDocument = pdfDocument;\n loadingTask._capability.resolve(pdfDocument);\n }, this);\n\n messageHandler.on('PasswordRequest',\n function transportPasswordRequest(exception) {\n this._passwordCapability = createPromiseCapability();\n\n if (loadingTask.onPassword) {\n var updatePassword = (password) => {\n this._passwordCapability.resolve({\n password,\n });\n };\n loadingTask.onPassword(updatePassword, exception.code);\n } else {\n this._passwordCapability.reject(\n new PasswordException(exception.message, exception.code));\n }\n return this._passwordCapability.promise;\n }, this);\n\n messageHandler.on('PasswordException',\n function transportPasswordException(exception) {\n loadingTask._capability.reject(\n new PasswordException(exception.message, exception.code));\n }, this);\n\n messageHandler.on('InvalidPDF', function transportInvalidPDF(exception) {\n this.loadingTask._capability.reject(\n new InvalidPDFException(exception.message));\n }, this);\n\n messageHandler.on('MissingPDF', function transportMissingPDF(exception) {\n this.loadingTask._capability.reject(\n new MissingPDFException(exception.message));\n }, this);\n\n messageHandler.on('UnexpectedResponse',\n function transportUnexpectedResponse(exception) {\n this.loadingTask._capability.reject(\n new UnexpectedResponseException(exception.message, exception.status));\n }, this);\n\n messageHandler.on('UnknownError',\n function transportUnknownError(exception) {\n this.loadingTask._capability.reject(\n new UnknownErrorException(exception.message, exception.details));\n }, this);\n\n messageHandler.on('DataLoaded', function transportPage(data) {\n this.downloadInfoCapability.resolve(data);\n }, this);\n\n messageHandler.on('PDFManagerReady', function transportPage(data) {\n }, this);\n\n messageHandler.on('StartRenderPage', function transportRender(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n var page = this.pageCache[data.pageIndex];\n\n page.stats.timeEnd('Page Request');\n page._startRenderPage(data.transparency, data.intent);\n }, this);\n\n messageHandler.on('RenderPageChunk', function transportRender(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n var page = this.pageCache[data.pageIndex];\n\n page._renderPageChunk(data.operatorList, data.intent);\n }, this);\n\n messageHandler.on('commonobj', function transportObj(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n\n var id = data[0];\n var type = data[1];\n if (this.commonObjs.hasData(id)) {\n return;\n }\n\n switch (type) {\n case 'Font':\n var exportedData = data[2];\n\n if ('error' in exportedData) {\n var exportedError = exportedData.error;\n warn('Error during font loading: ' + exportedError);\n this.commonObjs.resolve(id, exportedError);\n break;\n }\n var fontRegistry = null;\n if (getDefaultSetting('pdfBug') && globalScope.FontInspector &&\n globalScope['FontInspector'].enabled) {\n fontRegistry = {\n registerFont(font, url) {\n globalScope['FontInspector'].fontAdded(font, url);\n },\n };\n }\n var font = new FontFaceObject(exportedData, {\n isEvalSuported: getDefaultSetting('isEvalSupported'),\n disableFontFace: getDefaultSetting('disableFontFace'),\n fontRegistry,\n });\n var fontReady = (fontObjs) => {\n this.commonObjs.resolve(id, font);\n };\n\n this.fontLoader.bind([font], fontReady);\n break;\n case 'FontPath':\n this.commonObjs.resolve(id, data[2]);\n break;\n default:\n throw new Error(`Got unknown common object type ${type}`);\n }\n }, this);\n\n messageHandler.on('obj', function transportObj(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n\n var id = data[0];\n var pageIndex = data[1];\n var type = data[2];\n var pageProxy = this.pageCache[pageIndex];\n var imageData;\n if (pageProxy.objs.hasData(id)) {\n return;\n }\n\n switch (type) {\n case 'JpegStream':\n imageData = data[3];\n loadJpegStream(id, imageData, pageProxy.objs);\n break;\n case 'Image':\n imageData = data[3];\n pageProxy.objs.resolve(id, imageData);\n\n // heuristics that will allow not to store large data\n var MAX_IMAGE_SIZE_TO_STORE = 8000000;\n if (imageData && 'data' in imageData &&\n imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {\n pageProxy.cleanupAfterRender = true;\n }\n break;\n default:\n throw new Error(`Got unknown object type ${type}`);\n }\n }, this);\n\n messageHandler.on('DocProgress', function transportDocProgress(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n\n var loadingTask = this.loadingTask;\n if (loadingTask.onProgress) {\n loadingTask.onProgress({\n loaded: data.loaded,\n total: data.total,\n });\n }\n }, this);\n\n messageHandler.on('PageError', function transportError(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n\n var page = this.pageCache[data.pageNum - 1];\n var intentState = page.intentStates[data.intent];\n\n if (intentState.displayReadyCapability) {\n intentState.displayReadyCapability.reject(data.error);\n } else {\n throw new Error(data.error);\n }\n\n if (intentState.operatorList) {\n // Mark operator list as complete.\n intentState.operatorList.lastChunk = true;\n for (var i = 0; i < intentState.renderTasks.length; i++) {\n intentState.renderTasks[i].operatorListChanged();\n }\n }\n }, this);\n\n messageHandler.on('UnsupportedFeature',\n function transportUnsupportedFeature(data) {\n if (this.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n var featureId = data.featureId;\n var loadingTask = this.loadingTask;\n if (loadingTask.onUnsupportedFeature) {\n loadingTask.onUnsupportedFeature(featureId);\n }\n _UnsupportedManager.notify(featureId);\n }, this);\n\n messageHandler.on('JpegDecode', function(data) {\n if (this.destroyed) {\n return Promise.reject(new Error('Worker was destroyed'));\n }\n\n if (typeof document === 'undefined') {\n // Make sure that this code is not executing in node.js, as\n // it's using DOM image, and there is no library to support that.\n return Promise.reject(new Error('\"document\" is not defined.'));\n }\n\n var imageUrl = data[0];\n var components = data[1];\n if (components !== 3 && components !== 1) {\n return Promise.reject(\n new Error('Only 3 components or 1 component can be returned'));\n }\n\n return new Promise(function (resolve, reject) {\n var img = new Image();\n img.onload = function () {\n var width = img.width;\n var height = img.height;\n var size = width * height;\n var rgbaLength = size * 4;\n var buf = new Uint8Array(size * components);\n var tmpCanvas = document.createElement('canvas');\n tmpCanvas.width = width;\n tmpCanvas.height = height;\n var tmpCtx = tmpCanvas.getContext('2d');\n tmpCtx.drawImage(img, 0, 0);\n var data = tmpCtx.getImageData(0, 0, width, height).data;\n var i, j;\n\n if (components === 3) {\n for (i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {\n buf[j] = data[i];\n buf[j + 1] = data[i + 1];\n buf[j + 2] = data[i + 2];\n }\n } else if (components === 1) {\n for (i = 0, j = 0; i < rgbaLength; i += 4, j++) {\n buf[j] = data[i];\n }\n }\n resolve({ data: buf, width, height, });\n };\n img.onerror = function () {\n reject(new Error('JpegDecode failed to load image'));\n };\n img.src = imageUrl;\n });\n }, this);\n\n messageHandler.on('FetchBuiltInCMap', function (data) {\n if (this.destroyed) {\n return Promise.reject(new Error('Worker was destroyed'));\n }\n return this.CMapReaderFactory.fetch({\n name: data.name,\n });\n }, this);\n },\n\n getData: function WorkerTransport_getData() {\n return this.messageHandler.sendWithPromise('GetData', null);\n },\n\n getPage: function WorkerTransport_getPage(pageNumber, capability) {\n if (!isInt(pageNumber) || pageNumber <= 0 || pageNumber > this.numPages) {\n return Promise.reject(new Error('Invalid page request'));\n }\n\n var pageIndex = pageNumber - 1;\n if (pageIndex in this.pagePromises) {\n return this.pagePromises[pageIndex];\n }\n var promise = this.messageHandler.sendWithPromise('GetPage', {\n pageIndex,\n }).then((pageInfo) => {\n if (this.destroyed) {\n throw new Error('Transport destroyed');\n }\n var page = new PDFPageProxy(pageIndex, pageInfo, this);\n this.pageCache[pageIndex] = page;\n return page;\n });\n this.pagePromises[pageIndex] = promise;\n return promise;\n },\n\n getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {\n return this.messageHandler.sendWithPromise('GetPageIndex', {\n ref,\n }).catch(function (reason) {\n return Promise.reject(new Error(reason));\n });\n },\n\n getAnnotations: function WorkerTransport_getAnnotations(pageIndex, intent) {\n return this.messageHandler.sendWithPromise('GetAnnotations', {\n pageIndex,\n intent,\n });\n },\n\n getDestinations: function WorkerTransport_getDestinations() {\n return this.messageHandler.sendWithPromise('GetDestinations', null);\n },\n\n getDestination: function WorkerTransport_getDestination(id) {\n return this.messageHandler.sendWithPromise('GetDestination', {\n id,\n });\n },\n\n getPageLabels: function WorkerTransport_getPageLabels() {\n return this.messageHandler.sendWithPromise('GetPageLabels', null);\n },\n\n getPageMode() {\n return this.messageHandler.sendWithPromise('GetPageMode', null);\n },\n\n getAttachments: function WorkerTransport_getAttachments() {\n return this.messageHandler.sendWithPromise('GetAttachments', null);\n },\n\n getJavaScript: function WorkerTransport_getJavaScript() {\n return this.messageHandler.sendWithPromise('GetJavaScript', null);\n },\n\n getOutline: function WorkerTransport_getOutline() {\n return this.messageHandler.sendWithPromise('GetOutline', null);\n },\n\n getMetadata: function WorkerTransport_getMetadata() {\n return this.messageHandler.sendWithPromise('GetMetadata', null).\n then(function transportMetadata(results) {\n return {\n info: results[0],\n metadata: (results[1] ? new Metadata(results[1]) : null),\n };\n });\n },\n\n getStats: function WorkerTransport_getStats() {\n return this.messageHandler.sendWithPromise('GetStats', null);\n },\n\n startCleanup: function WorkerTransport_startCleanup() {\n this.messageHandler.sendWithPromise('Cleanup', null).then(() => {\n for (var i = 0, ii = this.pageCache.length; i < ii; i++) {\n var page = this.pageCache[i];\n if (page) {\n page.cleanup();\n }\n }\n this.commonObjs.clear();\n this.fontLoader.clear();\n });\n },\n };\n return WorkerTransport;\n\n})();\n\n/**\n * A PDF document and page is built of many objects. E.g. there are objects\n * for fonts, images, rendering code and such. These objects might get processed\n * inside of a worker. The `PDFObjects` implements some basic functions to\n * manage these objects.\n * @ignore\n */\nvar PDFObjects = (function PDFObjectsClosure() {\n function PDFObjects() {\n this.objs = Object.create(null);\n }\n\n PDFObjects.prototype = {\n /**\n * Internal function.\n * Ensures there is an object defined for `objId`.\n */\n ensureObj: function PDFObjects_ensureObj(objId) {\n if (this.objs[objId]) {\n return this.objs[objId];\n }\n\n var obj = {\n capability: createPromiseCapability(),\n data: null,\n resolved: false,\n };\n this.objs[objId] = obj;\n\n return obj;\n },\n\n /**\n * If called *without* callback, this returns the data of `objId` but the\n * object needs to be resolved. If it isn't, this function throws.\n *\n * If called *with* a callback, the callback is called with the data of the\n * object once the object is resolved. That means, if you call this\n * function and the object is already resolved, the callback gets called\n * right away.\n */\n get: function PDFObjects_get(objId, callback) {\n // If there is a callback, then the get can be async and the object is\n // not required to be resolved right now\n if (callback) {\n this.ensureObj(objId).capability.promise.then(callback);\n return null;\n }\n\n // If there isn't a callback, the user expects to get the resolved data\n // directly.\n var obj = this.objs[objId];\n\n // If there isn't an object yet or the object isn't resolved, then the\n // data isn't ready yet!\n if (!obj || !obj.resolved) {\n throw new Error(`Requesting object that isn't resolved yet ${objId}`);\n }\n\n return obj.data;\n },\n\n /**\n * Resolves the object `objId` with optional `data`.\n */\n resolve: function PDFObjects_resolve(objId, data) {\n var obj = this.ensureObj(objId);\n\n obj.resolved = true;\n obj.data = data;\n obj.capability.resolve(data);\n },\n\n isResolved: function PDFObjects_isResolved(objId) {\n var objs = this.objs;\n\n if (!objs[objId]) {\n return false;\n }\n return objs[objId].resolved;\n },\n\n hasData: function PDFObjects_hasData(objId) {\n return this.isResolved(objId);\n },\n\n /**\n * Returns the data of `objId` if object exists, null otherwise.\n */\n getData: function PDFObjects_getData(objId) {\n var objs = this.objs;\n if (!objs[objId] || !objs[objId].resolved) {\n return null;\n }\n return objs[objId].data;\n },\n\n clear: function PDFObjects_clear() {\n this.objs = Object.create(null);\n },\n };\n return PDFObjects;\n})();\n\n/**\n * Allows controlling of the rendering tasks.\n * @class\n * @alias RenderTask\n */\nvar RenderTask = (function RenderTaskClosure() {\n function RenderTask(internalRenderTask) {\n this._internalRenderTask = internalRenderTask;\n\n /**\n * Callback for incremental rendering -- a function that will be called\n * each time the rendering is paused. To continue rendering call the\n * function that is the first argument to the callback.\n * @type {function}\n */\n this.onContinue = null;\n }\n\n RenderTask.prototype = /** @lends RenderTask.prototype */ {\n /**\n * Promise for rendering task completion.\n * @return {Promise}\n */\n get promise() {\n return this._internalRenderTask.capability.promise;\n },\n\n /**\n * Cancels the rendering task. If the task is currently rendering it will\n * not be cancelled until graphics pauses with a timeout. The promise that\n * this object extends will be rejected when cancelled.\n */\n cancel: function RenderTask_cancel() {\n this._internalRenderTask.cancel();\n },\n\n /**\n * Registers callbacks to indicate the rendering task completion.\n *\n * @param {function} onFulfilled The callback for the rendering completion.\n * @param {function} onRejected The callback for the rendering failure.\n * @return {Promise} A promise that is resolved after the onFulfilled or\n * onRejected callback.\n */\n then: function RenderTask_then(onFulfilled, onRejected) {\n return this.promise.then.apply(this.promise, arguments);\n },\n };\n\n return RenderTask;\n})();\n\n/**\n * For internal use only.\n * @ignore\n */\nvar InternalRenderTask = (function InternalRenderTaskClosure() {\n let canvasInRendering = new WeakMap();\n\n function InternalRenderTask(callback, params, objs, commonObjs, operatorList,\n pageNumber, canvasFactory) {\n this.callback = callback;\n this.params = params;\n this.objs = objs;\n this.commonObjs = commonObjs;\n this.operatorListIdx = null;\n this.operatorList = operatorList;\n this.pageNumber = pageNumber;\n this.canvasFactory = canvasFactory;\n this.running = false;\n this.graphicsReadyCallback = null;\n this.graphicsReady = false;\n this.useRequestAnimationFrame = false;\n this.cancelled = false;\n this.capability = createPromiseCapability();\n this.task = new RenderTask(this);\n // caching this-bound methods\n this._continueBound = this._continue.bind(this);\n this._scheduleNextBound = this._scheduleNext.bind(this);\n this._nextBound = this._next.bind(this);\n this._canvas = params.canvasContext.canvas;\n }\n\n InternalRenderTask.prototype = {\n\n initializeGraphics:\n function InternalRenderTask_initializeGraphics(transparency) {\n\n if (this._canvas) {\n if (canvasInRendering.has(this._canvas)) {\n throw new Error(\n 'Cannot use the same canvas during multiple render() operations. ' +\n 'Use different canvas or ensure previous operations were ' +\n 'cancelled or completed.');\n }\n canvasInRendering.set(this._canvas, this);\n }\n\n if (this.cancelled) {\n return;\n }\n if (getDefaultSetting('pdfBug') && globalScope.StepperManager &&\n globalScope.StepperManager.enabled) {\n this.stepper = globalScope.StepperManager.create(this.pageNumber - 1);\n this.stepper.init(this.operatorList);\n this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();\n }\n\n var params = this.params;\n this.gfx = new CanvasGraphics(params.canvasContext, this.commonObjs,\n this.objs, this.canvasFactory,\n params.imageLayer);\n\n this.gfx.beginDrawing({\n transform: params.transform,\n viewport: params.viewport,\n transparency,\n background: params.background,\n });\n this.operatorListIdx = 0;\n this.graphicsReady = true;\n if (this.graphicsReadyCallback) {\n this.graphicsReadyCallback();\n }\n },\n\n cancel: function InternalRenderTask_cancel() {\n this.running = false;\n this.cancelled = true;\n if (this._canvas) {\n canvasInRendering.delete(this._canvas);\n }\n\n if ((typeof PDFJSDev !== 'undefined' && PDFJSDev.test('PDFJS_NEXT')) ||\n getDefaultSetting('pdfjsNext')) {\n this.callback(new RenderingCancelledException(\n 'Rendering cancelled, page ' + this.pageNumber, 'canvas'));\n } else {\n this.callback('cancelled');\n }\n },\n\n operatorListChanged: function InternalRenderTask_operatorListChanged() {\n if (!this.graphicsReady) {\n if (!this.graphicsReadyCallback) {\n this.graphicsReadyCallback = this._continueBound;\n }\n return;\n }\n\n if (this.stepper) {\n this.stepper.updateOperatorList(this.operatorList);\n }\n\n if (this.running) {\n return;\n }\n this._continue();\n },\n\n _continue: function InternalRenderTask__continue() {\n this.running = true;\n if (this.cancelled) {\n return;\n }\n if (this.task.onContinue) {\n this.task.onContinue(this._scheduleNextBound);\n } else {\n this._scheduleNext();\n }\n },\n\n _scheduleNext: function InternalRenderTask__scheduleNext() {\n if (this.useRequestAnimationFrame && typeof window !== 'undefined') {\n window.requestAnimationFrame(this._nextBound);\n } else {\n Promise.resolve(undefined).then(this._nextBound);\n }\n },\n\n _next: function InternalRenderTask__next() {\n if (this.cancelled) {\n return;\n }\n this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList,\n this.operatorListIdx,\n this._continueBound,\n this.stepper);\n if (this.operatorListIdx === this.operatorList.argsArray.length) {\n this.running = false;\n if (this.operatorList.lastChunk) {\n this.gfx.endDrawing();\n if (this._canvas) {\n canvasInRendering.delete(this._canvas);\n }\n this.callback();\n }\n }\n },\n\n };\n\n return InternalRenderTask;\n})();\n\n/**\n * (Deprecated) Global observer of unsupported feature usages. Use\n * onUnsupportedFeature callback of the {PDFDocumentLoadingTask} instance.\n */\nvar _UnsupportedManager = (function UnsupportedManagerClosure() {\n var listeners = [];\n return {\n listen(cb) {\n deprecated('Global UnsupportedManager.listen is used: ' +\n ' use PDFDocumentLoadingTask.onUnsupportedFeature instead');\n listeners.push(cb);\n },\n notify(featureId) {\n for (var i = 0, ii = listeners.length; i < ii; i++) {\n listeners[i](featureId);\n }\n },\n };\n})();\n\nvar version, build;\nif (typeof PDFJSDev !== 'undefined') {\n version = PDFJSDev.eval('BUNDLE_VERSION');\n build = PDFJSDev.eval('BUNDLE_BUILD');\n}\n\nexport {\n getDocument,\n LoopbackPort,\n PDFDataRangeTransport,\n PDFWorker,\n PDFDocumentProxy,\n PDFPageProxy,\n setPDFNetworkStreamClass,\n _UnsupportedManager,\n version,\n build,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/api.js","/* Copyright 2014 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n addLinkAttributes, CustomStyle, getDefaultSetting, getFilenameFromUrl,\n LinkTarget\n} from './dom_utils';\nimport {\n AnnotationBorderStyleType, AnnotationType, stringToPDFString, Util, warn\n} from '../shared/util';\n\n/**\n * @typedef {Object} AnnotationElementParameters\n * @property {Object} data\n * @property {HTMLDivElement} layer\n * @property {PDFPage} page\n * @property {PageViewport} viewport\n * @property {IPDFLinkService} linkService\n * @property {DownloadManager} downloadManager\n * @property {string} imageResourcesPath\n * @property {boolean} renderInteractiveForms\n */\n\n/**\n * @class\n * @alias AnnotationElementFactory\n */\nfunction AnnotationElementFactory() {}\nAnnotationElementFactory.prototype =\n /** @lends AnnotationElementFactory.prototype */ {\n /**\n * @param {AnnotationElementParameters} parameters\n * @returns {AnnotationElement}\n */\n create: function AnnotationElementFactory_create(parameters) {\n var subtype = parameters.data.annotationType;\n\n switch (subtype) {\n case AnnotationType.LINK:\n return new LinkAnnotationElement(parameters);\n\n case AnnotationType.TEXT:\n return new TextAnnotationElement(parameters);\n\n case AnnotationType.WIDGET:\n var fieldType = parameters.data.fieldType;\n\n switch (fieldType) {\n case 'Tx':\n return new TextWidgetAnnotationElement(parameters);\n case 'Btn':\n if (parameters.data.radioButton) {\n return new RadioButtonWidgetAnnotationElement(parameters);\n } else if (parameters.data.checkBox) {\n return new CheckboxWidgetAnnotationElement(parameters);\n }\n warn('Unimplemented button widget annotation: pushbutton');\n break;\n case 'Ch':\n return new ChoiceWidgetAnnotationElement(parameters);\n }\n return new WidgetAnnotationElement(parameters);\n\n case AnnotationType.POPUP:\n return new PopupAnnotationElement(parameters);\n\n case AnnotationType.LINE:\n return new LineAnnotationElement(parameters);\n\n case AnnotationType.HIGHLIGHT:\n return new HighlightAnnotationElement(parameters);\n\n case AnnotationType.UNDERLINE:\n return new UnderlineAnnotationElement(parameters);\n\n case AnnotationType.SQUIGGLY:\n return new SquigglyAnnotationElement(parameters);\n\n case AnnotationType.STRIKEOUT:\n return new StrikeOutAnnotationElement(parameters);\n\n case AnnotationType.FILEATTACHMENT:\n return new FileAttachmentAnnotationElement(parameters);\n\n default:\n return new AnnotationElement(parameters);\n }\n },\n};\n\n/**\n * @class\n * @alias AnnotationElement\n */\nvar AnnotationElement = (function AnnotationElementClosure() {\n function AnnotationElement(parameters, isRenderable, ignoreBorder) {\n this.isRenderable = isRenderable || false;\n this.data = parameters.data;\n this.layer = parameters.layer;\n this.page = parameters.page;\n this.viewport = parameters.viewport;\n this.linkService = parameters.linkService;\n this.downloadManager = parameters.downloadManager;\n this.imageResourcesPath = parameters.imageResourcesPath;\n this.renderInteractiveForms = parameters.renderInteractiveForms;\n\n if (isRenderable) {\n this.container = this._createContainer(ignoreBorder);\n }\n }\n\n AnnotationElement.prototype = /** @lends AnnotationElement.prototype */ {\n /**\n * Create an empty container for the annotation's HTML element.\n *\n * @private\n * @param {boolean} ignoreBorder\n * @memberof AnnotationElement\n * @returns {HTMLSectionElement}\n */\n _createContainer:\n function AnnotationElement_createContainer(ignoreBorder) {\n var data = this.data, page = this.page, viewport = this.viewport;\n var container = document.createElement('section');\n var width = data.rect[2] - data.rect[0];\n var height = data.rect[3] - data.rect[1];\n\n container.setAttribute('data-annotation-id', data.id);\n\n // Do *not* modify `data.rect`, since that will corrupt the annotation\n // position on subsequent calls to `_createContainer` (see issue 6804).\n var rect = Util.normalizeRect([\n data.rect[0],\n page.view[3] - data.rect[1] + page.view[1],\n data.rect[2],\n page.view[3] - data.rect[3] + page.view[1]\n ]);\n\n CustomStyle.setProp('transform', container,\n 'matrix(' + viewport.transform.join(',') + ')');\n CustomStyle.setProp('transformOrigin', container,\n -rect[0] + 'px ' + -rect[1] + 'px');\n\n if (!ignoreBorder && data.borderStyle.width > 0) {\n container.style.borderWidth = data.borderStyle.width + 'px';\n if (data.borderStyle.style !== AnnotationBorderStyleType.UNDERLINE) {\n // Underline styles only have a bottom border, so we do not need\n // to adjust for all borders. This yields a similar result as\n // Adobe Acrobat/Reader.\n width = width - 2 * data.borderStyle.width;\n height = height - 2 * data.borderStyle.width;\n }\n\n var horizontalRadius = data.borderStyle.horizontalCornerRadius;\n var verticalRadius = data.borderStyle.verticalCornerRadius;\n if (horizontalRadius > 0 || verticalRadius > 0) {\n var radius = horizontalRadius + 'px / ' + verticalRadius + 'px';\n CustomStyle.setProp('borderRadius', container, radius);\n }\n\n switch (data.borderStyle.style) {\n case AnnotationBorderStyleType.SOLID:\n container.style.borderStyle = 'solid';\n break;\n\n case AnnotationBorderStyleType.DASHED:\n container.style.borderStyle = 'dashed';\n break;\n\n case AnnotationBorderStyleType.BEVELED:\n warn('Unimplemented border style: beveled');\n break;\n\n case AnnotationBorderStyleType.INSET:\n warn('Unimplemented border style: inset');\n break;\n\n case AnnotationBorderStyleType.UNDERLINE:\n container.style.borderBottomStyle = 'solid';\n break;\n\n default:\n break;\n }\n\n if (data.color) {\n container.style.borderColor =\n Util.makeCssRgb(data.color[0] | 0,\n data.color[1] | 0,\n data.color[2] | 0);\n } else {\n // Transparent (invisible) border, so do not draw it at all.\n container.style.borderWidth = 0;\n }\n }\n\n container.style.left = rect[0] + 'px';\n container.style.top = rect[1] + 'px';\n\n container.style.width = width + 'px';\n container.style.height = height + 'px';\n\n return container;\n },\n\n /**\n * Create a popup for the annotation's HTML element. This is used for\n * annotations that do not have a Popup entry in the dictionary, but\n * are of a type that works with popups (such as Highlight annotations).\n *\n * @private\n * @param {HTMLSectionElement} container\n * @param {HTMLDivElement|HTMLImageElement|null} trigger\n * @param {Object} data\n * @memberof AnnotationElement\n */\n _createPopup:\n function AnnotationElement_createPopup(container, trigger, data) {\n // If no trigger element is specified, create it.\n if (!trigger) {\n trigger = document.createElement('div');\n trigger.style.height = container.style.height;\n trigger.style.width = container.style.width;\n container.appendChild(trigger);\n }\n\n var popupElement = new PopupElement({\n container,\n trigger,\n color: data.color,\n title: data.title,\n contents: data.contents,\n hideWrapper: true,\n });\n var popup = popupElement.render();\n\n // Position the popup next to the annotation's container.\n popup.style.left = container.style.width;\n\n container.appendChild(popup);\n },\n\n /**\n * Render the annotation's HTML element in the empty container.\n *\n * @public\n * @memberof AnnotationElement\n */\n render: function AnnotationElement_render() {\n throw new Error('Abstract method AnnotationElement.render called');\n },\n };\n\n return AnnotationElement;\n})();\n\n/**\n * @class\n * @alias LinkAnnotationElement\n */\nvar LinkAnnotationElement = (function LinkAnnotationElementClosure() {\n function LinkAnnotationElement(parameters) {\n AnnotationElement.call(this, parameters, true);\n }\n\n Util.inherit(LinkAnnotationElement, AnnotationElement, {\n /**\n * Render the link annotation's HTML element in the empty container.\n *\n * @public\n * @memberof LinkAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function LinkAnnotationElement_render() {\n this.container.className = 'linkAnnotation';\n\n var link = document.createElement('a');\n addLinkAttributes(link, {\n url: this.data.url,\n target: (this.data.newWindow ? LinkTarget.BLANK : undefined),\n });\n\n if (!this.data.url) {\n if (this.data.action) {\n this._bindNamedAction(link, this.data.action);\n } else {\n this._bindLink(link, this.data.dest);\n }\n }\n\n this.container.appendChild(link);\n return this.container;\n },\n\n /**\n * Bind internal links to the link element.\n *\n * @private\n * @param {Object} link\n * @param {Object} destination\n * @memberof LinkAnnotationElement\n */\n _bindLink(link, destination) {\n link.href = this.linkService.getDestinationHash(destination);\n link.onclick = () => {\n if (destination) {\n this.linkService.navigateTo(destination);\n }\n return false;\n };\n if (destination) {\n link.className = 'internalLink';\n }\n },\n\n /**\n * Bind named actions to the link element.\n *\n * @private\n * @param {Object} link\n * @param {Object} action\n * @memberof LinkAnnotationElement\n */\n _bindNamedAction(link, action) {\n link.href = this.linkService.getAnchorUrl('');\n link.onclick = () => {\n this.linkService.executeNamedAction(action);\n return false;\n };\n link.className = 'internalLink';\n },\n });\n\n return LinkAnnotationElement;\n})();\n\n/**\n * @class\n * @alias TextAnnotationElement\n */\nvar TextAnnotationElement = (function TextAnnotationElementClosure() {\n function TextAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable);\n }\n\n Util.inherit(TextAnnotationElement, AnnotationElement, {\n /**\n * Render the text annotation's HTML element in the empty container.\n *\n * @public\n * @memberof TextAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function TextAnnotationElement_render() {\n this.container.className = 'textAnnotation';\n\n var image = document.createElement('img');\n image.style.height = this.container.style.height;\n image.style.width = this.container.style.width;\n image.src = this.imageResourcesPath + 'annotation-' +\n this.data.name.toLowerCase() + '.svg';\n image.alt = '[{{type}} Annotation]';\n image.dataset.l10nId = 'text_annotation_type';\n image.dataset.l10nArgs = JSON.stringify({ type: this.data.name, });\n\n if (!this.data.hasPopup) {\n this._createPopup(this.container, image, this.data);\n }\n\n this.container.appendChild(image);\n return this.container;\n },\n });\n\n return TextAnnotationElement;\n})();\n\n/**\n * @class\n * @alias WidgetAnnotationElement\n */\nvar WidgetAnnotationElement = (function WidgetAnnotationElementClosure() {\n function WidgetAnnotationElement(parameters, isRenderable) {\n AnnotationElement.call(this, parameters, isRenderable);\n }\n\n Util.inherit(WidgetAnnotationElement, AnnotationElement, {\n /**\n * Render the widget annotation's HTML element in the empty container.\n *\n * @public\n * @memberof WidgetAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function WidgetAnnotationElement_render() {\n // Show only the container for unsupported field types.\n return this.container;\n },\n });\n\n return WidgetAnnotationElement;\n})();\n\n/**\n * @class\n * @alias TextWidgetAnnotationElement\n */\nvar TextWidgetAnnotationElement = (\n function TextWidgetAnnotationElementClosure() {\n var TEXT_ALIGNMENT = ['left', 'center', 'right'];\n\n function TextWidgetAnnotationElement(parameters) {\n var isRenderable = parameters.renderInteractiveForms ||\n (!parameters.data.hasAppearance && !!parameters.data.fieldValue);\n WidgetAnnotationElement.call(this, parameters, isRenderable);\n }\n\n Util.inherit(TextWidgetAnnotationElement, WidgetAnnotationElement, {\n /**\n * Render the text widget annotation's HTML element in the empty container.\n *\n * @public\n * @memberof TextWidgetAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function TextWidgetAnnotationElement_render() {\n this.container.className = 'textWidgetAnnotation';\n\n var element = null;\n if (this.renderInteractiveForms) {\n // NOTE: We cannot set the values using `element.value` below, since it\n // prevents the AnnotationLayer rasterizer in `test/driver.js`\n // from parsing the elements correctly for the reference tests.\n if (this.data.multiLine) {\n element = document.createElement('textarea');\n element.textContent = this.data.fieldValue;\n } else {\n element = document.createElement('input');\n element.type = 'text';\n element.setAttribute('value', this.data.fieldValue);\n }\n\n element.disabled = this.data.readOnly;\n\n if (this.data.maxLen !== null) {\n element.maxLength = this.data.maxLen;\n }\n\n if (this.data.comb) {\n var fieldWidth = this.data.rect[2] - this.data.rect[0];\n var combWidth = fieldWidth / this.data.maxLen;\n\n element.classList.add('comb');\n element.style.letterSpacing = 'calc(' + combWidth + 'px - 1ch)';\n }\n } else {\n element = document.createElement('div');\n element.textContent = this.data.fieldValue;\n element.style.verticalAlign = 'middle';\n element.style.display = 'table-cell';\n\n var font = null;\n if (this.data.fontRefName) {\n font = this.page.commonObjs.getData(this.data.fontRefName);\n }\n this._setTextStyle(element, font);\n }\n\n if (this.data.textAlignment !== null) {\n element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];\n }\n\n this.container.appendChild(element);\n return this.container;\n },\n\n /**\n * Apply text styles to the text in the element.\n *\n * @private\n * @param {HTMLDivElement} element\n * @param {Object} font\n * @memberof TextWidgetAnnotationElement\n */\n _setTextStyle:\n function TextWidgetAnnotationElement_setTextStyle(element, font) {\n // TODO: This duplicates some of the logic in CanvasGraphics.setFont().\n var style = element.style;\n style.fontSize = this.data.fontSize + 'px';\n style.direction = (this.data.fontDirection < 0 ? 'rtl' : 'ltr');\n\n if (!font) {\n return;\n }\n\n style.fontWeight = (font.black ?\n (font.bold ? '900' : 'bold') :\n (font.bold ? 'bold' : 'normal'));\n style.fontStyle = (font.italic ? 'italic' : 'normal');\n\n // Use a reasonable default font if the font doesn't specify a fallback.\n var fontFamily = font.loadedName ? '\"' + font.loadedName + '\", ' : '';\n var fallbackName = font.fallbackName || 'Helvetica, sans-serif';\n style.fontFamily = fontFamily + fallbackName;\n },\n });\n\n return TextWidgetAnnotationElement;\n})();\n\n/**\n * @class\n * @alias CheckboxWidgetAnnotationElement\n */\nvar CheckboxWidgetAnnotationElement =\n (function CheckboxWidgetAnnotationElementClosure() {\n function CheckboxWidgetAnnotationElement(parameters) {\n WidgetAnnotationElement.call(this, parameters,\n parameters.renderInteractiveForms);\n }\n\n Util.inherit(CheckboxWidgetAnnotationElement, WidgetAnnotationElement, {\n /**\n * Render the checkbox widget annotation's HTML element\n * in the empty container.\n *\n * @public\n * @memberof CheckboxWidgetAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function CheckboxWidgetAnnotationElement_render() {\n this.container.className = 'buttonWidgetAnnotation checkBox';\n\n var element = document.createElement('input');\n element.disabled = this.data.readOnly;\n element.type = 'checkbox';\n if (this.data.fieldValue && this.data.fieldValue !== 'Off') {\n element.setAttribute('checked', true);\n }\n\n this.container.appendChild(element);\n return this.container;\n },\n });\n\n return CheckboxWidgetAnnotationElement;\n})();\n\n/**\n * @class\n * @alias RadioButtonWidgetAnnotationElement\n */\nvar RadioButtonWidgetAnnotationElement =\n (function RadioButtonWidgetAnnotationElementClosure() {\n function RadioButtonWidgetAnnotationElement(parameters) {\n WidgetAnnotationElement.call(this, parameters,\n parameters.renderInteractiveForms);\n }\n\n Util.inherit(RadioButtonWidgetAnnotationElement, WidgetAnnotationElement, {\n /**\n * Render the radio button widget annotation's HTML element\n * in the empty container.\n *\n * @public\n * @memberof RadioButtonWidgetAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function RadioButtonWidgetAnnotationElement_render() {\n this.container.className = 'buttonWidgetAnnotation radioButton';\n\n var element = document.createElement('input');\n element.disabled = this.data.readOnly;\n element.type = 'radio';\n element.name = this.data.fieldName;\n if (this.data.fieldValue === this.data.buttonValue) {\n element.setAttribute('checked', true);\n }\n\n this.container.appendChild(element);\n return this.container;\n },\n });\n\n return RadioButtonWidgetAnnotationElement;\n})();\n\n /**\n * @class\n * @alias ChoiceWidgetAnnotationElement\n */\nvar ChoiceWidgetAnnotationElement = (\n function ChoiceWidgetAnnotationElementClosure() {\n function ChoiceWidgetAnnotationElement(parameters) {\n WidgetAnnotationElement.call(this, parameters,\n parameters.renderInteractiveForms);\n }\n\n Util.inherit(ChoiceWidgetAnnotationElement, WidgetAnnotationElement, {\n /**\n * Render the choice widget annotation's HTML element in the empty\n * container.\n *\n * @public\n * @memberof ChoiceWidgetAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function ChoiceWidgetAnnotationElement_render() {\n this.container.className = 'choiceWidgetAnnotation';\n\n var selectElement = document.createElement('select');\n selectElement.disabled = this.data.readOnly;\n\n if (!this.data.combo) {\n // List boxes have a size and (optionally) multiple selection.\n selectElement.size = this.data.options.length;\n\n if (this.data.multiSelect) {\n selectElement.multiple = true;\n }\n }\n\n // Insert the options into the choice field.\n for (var i = 0, ii = this.data.options.length; i < ii; i++) {\n var option = this.data.options[i];\n\n var optionElement = document.createElement('option');\n optionElement.textContent = option.displayValue;\n optionElement.value = option.exportValue;\n\n if (this.data.fieldValue.indexOf(option.displayValue) >= 0) {\n optionElement.setAttribute('selected', true);\n }\n\n selectElement.appendChild(optionElement);\n }\n\n this.container.appendChild(selectElement);\n return this.container;\n },\n });\n\n return ChoiceWidgetAnnotationElement;\n})();\n\n/**\n * @class\n * @alias PopupAnnotationElement\n */\nvar PopupAnnotationElement = (function PopupAnnotationElementClosure() {\n // Do not render popup annotations for parent elements with these types as\n // they create the popups themselves (because of custom trigger divs).\n var IGNORE_TYPES = ['Line'];\n\n function PopupAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable);\n }\n\n Util.inherit(PopupAnnotationElement, AnnotationElement, {\n /**\n * Render the popup annotation's HTML element in the empty container.\n *\n * @public\n * @memberof PopupAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function PopupAnnotationElement_render() {\n this.container.className = 'popupAnnotation';\n\n if (IGNORE_TYPES.indexOf(this.data.parentType) >= 0) {\n return this.container;\n }\n\n var selector = '[data-annotation-id=\"' + this.data.parentId + '\"]';\n var parentElement = this.layer.querySelector(selector);\n if (!parentElement) {\n return this.container;\n }\n\n var popup = new PopupElement({\n container: this.container,\n trigger: parentElement,\n color: this.data.color,\n title: this.data.title,\n contents: this.data.contents,\n });\n\n // Position the popup next to the parent annotation's container.\n // PDF viewers ignore a popup annotation's rectangle.\n var parentLeft = parseFloat(parentElement.style.left);\n var parentWidth = parseFloat(parentElement.style.width);\n CustomStyle.setProp('transformOrigin', this.container,\n -(parentLeft + parentWidth) + 'px -' +\n parentElement.style.top);\n this.container.style.left = (parentLeft + parentWidth) + 'px';\n\n this.container.appendChild(popup.render());\n return this.container;\n },\n });\n\n return PopupAnnotationElement;\n})();\n\n/**\n * @class\n * @alias PopupElement\n */\nvar PopupElement = (function PopupElementClosure() {\n var BACKGROUND_ENLIGHT = 0.7;\n\n function PopupElement(parameters) {\n this.container = parameters.container;\n this.trigger = parameters.trigger;\n this.color = parameters.color;\n this.title = parameters.title;\n this.contents = parameters.contents;\n this.hideWrapper = parameters.hideWrapper || false;\n\n this.pinned = false;\n }\n\n PopupElement.prototype = /** @lends PopupElement.prototype */ {\n /**\n * Render the popup's HTML element.\n *\n * @public\n * @memberof PopupElement\n * @returns {HTMLSectionElement}\n */\n render: function PopupElement_render() {\n var wrapper = document.createElement('div');\n wrapper.className = 'popupWrapper';\n\n // For Popup annotations we hide the entire section because it contains\n // only the popup. However, for Text annotations without a separate Popup\n // annotation, we cannot hide the entire container as the image would\n // disappear too. In that special case, hiding the wrapper suffices.\n this.hideElement = (this.hideWrapper ? wrapper : this.container);\n this.hideElement.setAttribute('hidden', true);\n\n var popup = document.createElement('div');\n popup.className = 'popup';\n\n var color = this.color;\n if (color) {\n // Enlighten the color.\n var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];\n var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];\n var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];\n popup.style.backgroundColor = Util.makeCssRgb(r | 0, g | 0, b | 0);\n }\n\n var contents = this._formatContents(this.contents);\n var title = document.createElement('h1');\n title.textContent = this.title;\n\n // Attach the event listeners to the trigger element.\n this.trigger.addEventListener('click', this._toggle.bind(this));\n this.trigger.addEventListener('mouseover', this._show.bind(this, false));\n this.trigger.addEventListener('mouseout', this._hide.bind(this, false));\n popup.addEventListener('click', this._hide.bind(this, true));\n\n popup.appendChild(title);\n popup.appendChild(contents);\n wrapper.appendChild(popup);\n return wrapper;\n },\n\n /**\n * Format the contents of the popup by adding newlines where necessary.\n *\n * @private\n * @param {string} contents\n * @memberof PopupElement\n * @returns {HTMLParagraphElement}\n */\n _formatContents: function PopupElement_formatContents(contents) {\n var p = document.createElement('p');\n var lines = contents.split(/(?:\\r\\n?|\\n)/);\n for (var i = 0, ii = lines.length; i < ii; ++i) {\n var line = lines[i];\n p.appendChild(document.createTextNode(line));\n if (i < (ii - 1)) {\n p.appendChild(document.createElement('br'));\n }\n }\n return p;\n },\n\n /**\n * Toggle the visibility of the popup.\n *\n * @private\n * @memberof PopupElement\n */\n _toggle: function PopupElement_toggle() {\n if (this.pinned) {\n this._hide(true);\n } else {\n this._show(true);\n }\n },\n\n /**\n * Show the popup.\n *\n * @private\n * @param {boolean} pin\n * @memberof PopupElement\n */\n _show: function PopupElement_show(pin) {\n if (pin) {\n this.pinned = true;\n }\n if (this.hideElement.hasAttribute('hidden')) {\n this.hideElement.removeAttribute('hidden');\n this.container.style.zIndex += 1;\n }\n },\n\n /**\n * Hide the popup.\n *\n * @private\n * @param {boolean} unpin\n * @memberof PopupElement\n */\n _hide: function PopupElement_hide(unpin) {\n if (unpin) {\n this.pinned = false;\n }\n if (!this.hideElement.hasAttribute('hidden') && !this.pinned) {\n this.hideElement.setAttribute('hidden', true);\n this.container.style.zIndex -= 1;\n }\n },\n };\n\n return PopupElement;\n})();\n\n/**\n * @class\n * @alias LineAnnotationElement\n */\nvar LineAnnotationElement = (function LineAnnotationElementClosure() {\n var SVG_NS = 'http://www.w3.org/2000/svg';\n\n function LineAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable,\n /* ignoreBorder = */ true);\n }\n\n Util.inherit(LineAnnotationElement, AnnotationElement, {\n /**\n * Render the line annotation's HTML element in the empty container.\n *\n * @public\n * @memberof LineAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function LineAnnotationElement_render() {\n this.container.className = 'lineAnnotation';\n\n // Create an invisible line with the same starting and ending coordinates\n // that acts as the trigger for the popup. Only the line itself should\n // trigger the popup, not the entire container.\n var data = this.data;\n var width = data.rect[2] - data.rect[0];\n var height = data.rect[3] - data.rect[1];\n\n var svg = document.createElementNS(SVG_NS, 'svg:svg');\n svg.setAttributeNS(null, 'version', '1.1');\n svg.setAttributeNS(null, 'width', width + 'px');\n svg.setAttributeNS(null, 'height', height + 'px');\n svg.setAttributeNS(null, 'preserveAspectRatio', 'none');\n svg.setAttributeNS(null, 'viewBox', '0 0 ' + width + ' ' + height);\n\n // PDF coordinates are calculated from a bottom left origin, so transform\n // the line coordinates to a top left origin for the SVG element.\n var line = document.createElementNS(SVG_NS, 'svg:line');\n line.setAttributeNS(null, 'x1', data.rect[2] - data.lineCoordinates[0]);\n line.setAttributeNS(null, 'y1', data.rect[3] - data.lineCoordinates[1]);\n line.setAttributeNS(null, 'x2', data.rect[2] - data.lineCoordinates[2]);\n line.setAttributeNS(null, 'y2', data.rect[3] - data.lineCoordinates[3]);\n line.setAttributeNS(null, 'stroke-width', data.borderStyle.width);\n line.setAttributeNS(null, 'stroke', 'transparent');\n\n svg.appendChild(line);\n this.container.append(svg);\n\n // Create the popup ourselves so that we can bind it to the line instead\n // of to the entire container (which is the default).\n this._createPopup(this.container, line, this.data);\n\n return this.container;\n },\n });\n\n return LineAnnotationElement;\n})();\n\n/**\n * @class\n * @alias HighlightAnnotationElement\n */\nvar HighlightAnnotationElement = (\n function HighlightAnnotationElementClosure() {\n function HighlightAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable,\n /* ignoreBorder = */ true);\n }\n\n Util.inherit(HighlightAnnotationElement, AnnotationElement, {\n /**\n * Render the highlight annotation's HTML element in the empty container.\n *\n * @public\n * @memberof HighlightAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function HighlightAnnotationElement_render() {\n this.container.className = 'highlightAnnotation';\n\n if (!this.data.hasPopup) {\n this._createPopup(this.container, null, this.data);\n }\n return this.container;\n },\n });\n\n return HighlightAnnotationElement;\n})();\n\n/**\n * @class\n * @alias UnderlineAnnotationElement\n */\nvar UnderlineAnnotationElement = (\n function UnderlineAnnotationElementClosure() {\n function UnderlineAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable,\n /* ignoreBorder = */ true);\n }\n\n Util.inherit(UnderlineAnnotationElement, AnnotationElement, {\n /**\n * Render the underline annotation's HTML element in the empty container.\n *\n * @public\n * @memberof UnderlineAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function UnderlineAnnotationElement_render() {\n this.container.className = 'underlineAnnotation';\n\n if (!this.data.hasPopup) {\n this._createPopup(this.container, null, this.data);\n }\n return this.container;\n },\n });\n\n return UnderlineAnnotationElement;\n})();\n\n/**\n * @class\n * @alias SquigglyAnnotationElement\n */\nvar SquigglyAnnotationElement = (function SquigglyAnnotationElementClosure() {\n function SquigglyAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable,\n /* ignoreBorder = */ true);\n }\n\n Util.inherit(SquigglyAnnotationElement, AnnotationElement, {\n /**\n * Render the squiggly annotation's HTML element in the empty container.\n *\n * @public\n * @memberof SquigglyAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function SquigglyAnnotationElement_render() {\n this.container.className = 'squigglyAnnotation';\n\n if (!this.data.hasPopup) {\n this._createPopup(this.container, null, this.data);\n }\n return this.container;\n },\n });\n\n return SquigglyAnnotationElement;\n})();\n\n/**\n * @class\n * @alias StrikeOutAnnotationElement\n */\nvar StrikeOutAnnotationElement = (\n function StrikeOutAnnotationElementClosure() {\n function StrikeOutAnnotationElement(parameters) {\n var isRenderable = !!(parameters.data.hasPopup ||\n parameters.data.title || parameters.data.contents);\n AnnotationElement.call(this, parameters, isRenderable,\n /* ignoreBorder = */ true);\n }\n\n Util.inherit(StrikeOutAnnotationElement, AnnotationElement, {\n /**\n * Render the strikeout annotation's HTML element in the empty container.\n *\n * @public\n * @memberof StrikeOutAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function StrikeOutAnnotationElement_render() {\n this.container.className = 'strikeoutAnnotation';\n\n if (!this.data.hasPopup) {\n this._createPopup(this.container, null, this.data);\n }\n return this.container;\n },\n });\n\n return StrikeOutAnnotationElement;\n})();\n\n/**\n * @class\n * @alias FileAttachmentAnnotationElement\n */\nvar FileAttachmentAnnotationElement = (\n function FileAttachmentAnnotationElementClosure() {\n function FileAttachmentAnnotationElement(parameters) {\n AnnotationElement.call(this, parameters, true);\n\n var file = this.data.file;\n this.filename = getFilenameFromUrl(file.filename);\n this.content = file.content;\n\n this.linkService.onFileAttachmentAnnotation({\n id: stringToPDFString(file.filename),\n filename: file.filename,\n content: file.content,\n });\n }\n\n Util.inherit(FileAttachmentAnnotationElement, AnnotationElement, {\n /**\n * Render the file attachment annotation's HTML element in the empty\n * container.\n *\n * @public\n * @memberof FileAttachmentAnnotationElement\n * @returns {HTMLSectionElement}\n */\n render: function FileAttachmentAnnotationElement_render() {\n this.container.className = 'fileAttachmentAnnotation';\n\n var trigger = document.createElement('div');\n trigger.style.height = this.container.style.height;\n trigger.style.width = this.container.style.width;\n trigger.addEventListener('dblclick', this._download.bind(this));\n\n if (!this.data.hasPopup && (this.data.title || this.data.contents)) {\n this._createPopup(this.container, trigger, this.data);\n }\n\n this.container.appendChild(trigger);\n return this.container;\n },\n\n /**\n * Download the file attachment associated with this annotation.\n *\n * @private\n * @memberof FileAttachmentAnnotationElement\n */\n _download: function FileAttachmentAnnotationElement_download() {\n if (!this.downloadManager) {\n warn('Download cannot be started due to unavailable download manager');\n return;\n }\n this.downloadManager.downloadData(this.content, this.filename, '');\n },\n });\n\n return FileAttachmentAnnotationElement;\n})();\n\n/**\n * @typedef {Object} AnnotationLayerParameters\n * @property {PageViewport} viewport\n * @property {HTMLDivElement} div\n * @property {Array} annotations\n * @property {PDFPage} page\n * @property {IPDFLinkService} linkService\n * @property {string} imageResourcesPath\n * @property {boolean} renderInteractiveForms\n */\n\n/**\n * @class\n * @alias AnnotationLayer\n */\nvar AnnotationLayer = (function AnnotationLayerClosure() {\n return {\n /**\n * Render a new annotation layer with all annotation elements.\n *\n * @public\n * @param {AnnotationLayerParameters} parameters\n * @memberof AnnotationLayer\n */\n render: function AnnotationLayer_render(parameters) {\n var annotationElementFactory = new AnnotationElementFactory();\n\n for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {\n var data = parameters.annotations[i];\n if (!data) {\n continue;\n }\n var element = annotationElementFactory.create({\n data,\n layer: parameters.div,\n page: parameters.page,\n viewport: parameters.viewport,\n linkService: parameters.linkService,\n downloadManager: parameters.downloadManager,\n imageResourcesPath: parameters.imageResourcesPath ||\n getDefaultSetting('imageResourcesPath'),\n renderInteractiveForms: parameters.renderInteractiveForms || false,\n });\n if (element.isRenderable) {\n parameters.div.appendChild(element.render());\n }\n }\n },\n\n /**\n * Update the annotation elements on existing annotation layer.\n *\n * @public\n * @param {AnnotationLayerParameters} parameters\n * @memberof AnnotationLayer\n */\n update: function AnnotationLayer_update(parameters) {\n for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {\n var data = parameters.annotations[i];\n var element = parameters.div.querySelector(\n '[data-annotation-id=\"' + data.id + '\"]');\n if (element) {\n CustomStyle.setProp('transform', element,\n 'matrix(' + parameters.viewport.transform.join(',') + ')');\n }\n }\n parameters.div.removeAttribute('hidden');\n },\n };\n})();\n\nexport {\n AnnotationLayer,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/annotation_layer.js","/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* globals __non_webpack_require__ */\n\nimport {\n createObjectURL, FONT_IDENTITY_MATRIX, IDENTITY_MATRIX, ImageKind, isArray,\n isNodeJS, isNum, OPS, Util, warn\n} from '../shared/util';\n\nvar SVGGraphics = function() {\n throw new Error('Not implemented: SVGGraphics');\n};\n\nif (typeof PDFJSDev === 'undefined' ||\n PDFJSDev.test('GENERIC || SINGLE_FILE')) {\n\nvar SVG_DEFAULTS = {\n fontStyle: 'normal',\n fontWeight: 'normal',\n fillColor: '#000000',\n};\n\nvar convertImgDataToPng = (function convertImgDataToPngClosure() {\n var PNG_HEADER =\n new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);\n\n var CHUNK_WRAPPER_SIZE = 12;\n\n var crcTable = new Int32Array(256);\n for (var i = 0; i < 256; i++) {\n var c = i;\n for (var h = 0; h < 8; h++) {\n if (c & 1) {\n c = 0xedB88320 ^ ((c >> 1) & 0x7fffffff);\n } else {\n c = (c >> 1) & 0x7fffffff;\n }\n }\n crcTable[i] = c;\n }\n\n function crc32(data, start, end) {\n var crc = -1;\n for (var i = start; i < end; i++) {\n var a = (crc ^ data[i]) & 0xff;\n var b = crcTable[a];\n crc = (crc >>> 8) ^ b;\n }\n return crc ^ -1;\n }\n\n function writePngChunk(type, body, data, offset) {\n var p = offset;\n var len = body.length;\n\n data[p] = len >> 24 & 0xff;\n data[p + 1] = len >> 16 & 0xff;\n data[p + 2] = len >> 8 & 0xff;\n data[p + 3] = len & 0xff;\n p += 4;\n\n data[p] = type.charCodeAt(0) & 0xff;\n data[p + 1] = type.charCodeAt(1) & 0xff;\n data[p + 2] = type.charCodeAt(2) & 0xff;\n data[p + 3] = type.charCodeAt(3) & 0xff;\n p += 4;\n\n data.set(body, p);\n p += body.length;\n\n var crc = crc32(data, offset + 4, p);\n\n data[p] = crc >> 24 & 0xff;\n data[p + 1] = crc >> 16 & 0xff;\n data[p + 2] = crc >> 8 & 0xff;\n data[p + 3] = crc & 0xff;\n }\n\n function adler32(data, start, end) {\n var a = 1;\n var b = 0;\n for (var i = start; i < end; ++i) {\n a = (a + (data[i] & 0xff)) % 65521;\n b = (b + a) % 65521;\n }\n return (b << 16) | a;\n }\n\n /**\n * @param {Uint8Array} literals The input data.\n * @returns {Uint8Array} The DEFLATE-compressed data stream in zlib format.\n * This is the required format for compressed streams in the PNG format:\n * http://www.libpng.org/pub/png/spec/1.2/PNG-Compression.html\n */\n function deflateSync(literals) {\n if (!isNodeJS()) {\n // zlib is certainly not available outside of Node.js. We can either use\n // the pako library for client-side DEFLATE compression, or use the canvas\n // API of the browser to obtain a more optimal PNG file.\n return deflateSyncUncompressed(literals);\n }\n try {\n // NOTE: This implementation is far from perfect, but already way better\n // than not applying any compression.\n //\n // A better algorithm will try to choose a good predictor/filter and\n // then choose a suitable zlib compression strategy (e.g. 3,Z_RLE).\n //\n // Node v0.11.12 zlib.deflateSync is introduced (and returns a Buffer).\n // Node v3.0.0 Buffer inherits from Uint8Array.\n // Node v8.0.0 zlib.deflateSync accepts Uint8Array as input.\n var input;\n // eslint-disable-next-line no-undef\n if (parseInt(process.versions.node) >= 8) {\n input = literals;\n } else {\n // eslint-disable-next-line no-undef\n input = new Buffer(literals);\n }\n var output = __non_webpack_require__('zlib')\n .deflateSync(input, { level: 9, });\n return output instanceof Uint8Array ? output : new Uint8Array(output);\n } catch (e) {\n warn('Not compressing PNG because zlib.deflateSync is unavailable: ' + e);\n }\n\n return deflateSyncUncompressed(literals);\n }\n\n // An implementation of DEFLATE with compression level 0 (Z_NO_COMPRESSION).\n function deflateSyncUncompressed(literals) {\n var len = literals.length;\n var maxBlockLength = 0xFFFF;\n\n var deflateBlocks = Math.ceil(len / maxBlockLength);\n var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);\n var pi = 0;\n idat[pi++] = 0x78; // compression method and flags\n idat[pi++] = 0x9c; // flags\n\n var pos = 0;\n while (len > maxBlockLength) {\n // writing non-final DEFLATE blocks type 0 and length of 65535\n idat[pi++] = 0x00;\n idat[pi++] = 0xff;\n idat[pi++] = 0xff;\n idat[pi++] = 0x00;\n idat[pi++] = 0x00;\n idat.set(literals.subarray(pos, pos + maxBlockLength), pi);\n pi += maxBlockLength;\n pos += maxBlockLength;\n len -= maxBlockLength;\n }\n\n // writing non-final DEFLATE blocks type 0\n idat[pi++] = 0x01;\n idat[pi++] = len & 0xff;\n idat[pi++] = len >> 8 & 0xff;\n idat[pi++] = (~len & 0xffff) & 0xff;\n idat[pi++] = (~len & 0xffff) >> 8 & 0xff;\n idat.set(literals.subarray(pos), pi);\n pi += literals.length - pos;\n\n var adler = adler32(literals, 0, literals.length); // checksum\n idat[pi++] = adler >> 24 & 0xff;\n idat[pi++] = adler >> 16 & 0xff;\n idat[pi++] = adler >> 8 & 0xff;\n idat[pi++] = adler & 0xff;\n return idat;\n }\n\n function encode(imgData, kind, forceDataSchema) {\n var width = imgData.width;\n var height = imgData.height;\n var bitDepth, colorType, lineSize;\n var bytes = imgData.data;\n\n switch (kind) {\n case ImageKind.GRAYSCALE_1BPP:\n colorType = 0;\n bitDepth = 1;\n lineSize = (width + 7) >> 3;\n break;\n case ImageKind.RGB_24BPP:\n colorType = 2;\n bitDepth = 8;\n lineSize = width * 3;\n break;\n case ImageKind.RGBA_32BPP:\n colorType = 6;\n bitDepth = 8;\n lineSize = width * 4;\n break;\n default:\n throw new Error('invalid format');\n }\n\n // prefix every row with predictor 0\n var literals = new Uint8Array((1 + lineSize) * height);\n var offsetLiterals = 0, offsetBytes = 0;\n var y, i;\n for (y = 0; y < height; ++y) {\n literals[offsetLiterals++] = 0; // no prediction\n literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize),\n offsetLiterals);\n offsetBytes += lineSize;\n offsetLiterals += lineSize;\n }\n\n if (kind === ImageKind.GRAYSCALE_1BPP) {\n // inverting for B/W\n offsetLiterals = 0;\n for (y = 0; y < height; y++) {\n offsetLiterals++; // skipping predictor\n for (i = 0; i < lineSize; i++) {\n literals[offsetLiterals++] ^= 0xFF;\n }\n }\n }\n\n var ihdr = new Uint8Array([\n width >> 24 & 0xff,\n width >> 16 & 0xff,\n width >> 8 & 0xff,\n width & 0xff,\n height >> 24 & 0xff,\n height >> 16 & 0xff,\n height >> 8 & 0xff,\n height & 0xff,\n bitDepth, // bit depth\n colorType, // color type\n 0x00, // compression method\n 0x00, // filter method\n 0x00 // interlace method\n ]);\n\n var idat = deflateSync(literals);\n\n // PNG will consists: header, IHDR+data, IDAT+data, and IEND.\n var pngLength = PNG_HEADER.length + (CHUNK_WRAPPER_SIZE * 3) +\n ihdr.length + idat.length;\n var data = new Uint8Array(pngLength);\n var offset = 0;\n data.set(PNG_HEADER, offset);\n offset += PNG_HEADER.length;\n writePngChunk('IHDR', ihdr, data, offset);\n offset += CHUNK_WRAPPER_SIZE + ihdr.length;\n writePngChunk('IDATA', idat, data, offset);\n offset += CHUNK_WRAPPER_SIZE + idat.length;\n writePngChunk('IEND', new Uint8Array(0), data, offset);\n\n return createObjectURL(data, 'image/png', forceDataSchema);\n }\n\n return function convertImgDataToPng(imgData, forceDataSchema) {\n var kind = (imgData.kind === undefined ?\n ImageKind.GRAYSCALE_1BPP : imgData.kind);\n return encode(imgData, kind, forceDataSchema);\n };\n})();\n\nvar SVGExtraState = (function SVGExtraStateClosure() {\n function SVGExtraState() {\n this.fontSizeScale = 1;\n this.fontWeight = SVG_DEFAULTS.fontWeight;\n this.fontSize = 0;\n\n this.textMatrix = IDENTITY_MATRIX;\n this.fontMatrix = FONT_IDENTITY_MATRIX;\n this.leading = 0;\n\n // Current point (in user coordinates)\n this.x = 0;\n this.y = 0;\n\n // Start of text line (in text coordinates)\n this.lineX = 0;\n this.lineY = 0;\n\n // Character and word spacing\n this.charSpacing = 0;\n this.wordSpacing = 0;\n this.textHScale = 1;\n this.textRise = 0;\n\n // Default foreground and background colors\n this.fillColor = SVG_DEFAULTS.fillColor;\n this.strokeColor = '#000000';\n\n this.fillAlpha = 1;\n this.strokeAlpha = 1;\n this.lineWidth = 1;\n this.lineJoin = '';\n this.lineCap = '';\n this.miterLimit = 0;\n\n this.dashArray = [];\n this.dashPhase = 0;\n\n this.dependencies = [];\n\n // Clipping\n this.activeClipUrl = null;\n this.clipGroup = null;\n\n this.maskId = '';\n }\n\n SVGExtraState.prototype = {\n clone: function SVGExtraState_clone() {\n return Object.create(this);\n },\n setCurrentPoint: function SVGExtraState_setCurrentPoint(x, y) {\n this.x = x;\n this.y = y;\n },\n };\n return SVGExtraState;\n})();\n\nSVGGraphics = (function SVGGraphicsClosure() {\n function opListToTree(opList) {\n var opTree = [];\n var tmp = [];\n var opListLen = opList.length;\n\n for (var x = 0; x < opListLen; x++) {\n if (opList[x].fn === 'save') {\n opTree.push({ 'fnId': 92, 'fn': 'group', 'items': [], });\n tmp.push(opTree);\n opTree = opTree[opTree.length - 1].items;\n continue;\n }\n\n if (opList[x].fn === 'restore') {\n opTree = tmp.pop();\n } else {\n opTree.push(opList[x]);\n }\n }\n return opTree;\n }\n\n /**\n * Formats float number.\n * @param value {number} number to format.\n * @returns {string}\n */\n function pf(value) {\n if (value === (value | 0)) { // integer number\n return value.toString();\n }\n var s = value.toFixed(10);\n var i = s.length - 1;\n if (s[i] !== '0') {\n return s;\n }\n // removing trailing zeros\n do {\n i--;\n } while (s[i] === '0');\n return s.substr(0, s[i] === '.' ? i : i + 1);\n }\n\n /**\n * Formats transform matrix. The standard rotation, scale and translate\n * matrices are replaced by their shorter forms, and for identity matrix\n * returns empty string to save the memory.\n * @param m {Array} matrix to format.\n * @returns {string}\n */\n function pm(m) {\n if (m[4] === 0 && m[5] === 0) {\n if (m[1] === 0 && m[2] === 0) {\n if (m[0] === 1 && m[3] === 1) {\n return '';\n }\n return 'scale(' + pf(m[0]) + ' ' + pf(m[3]) + ')';\n }\n if (m[0] === m[3] && m[1] === -m[2]) {\n var a = Math.acos(m[0]) * 180 / Math.PI;\n return 'rotate(' + pf(a) + ')';\n }\n } else {\n if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {\n return 'translate(' + pf(m[4]) + ' ' + pf(m[5]) + ')';\n }\n }\n return 'matrix(' + pf(m[0]) + ' ' + pf(m[1]) + ' ' + pf(m[2]) + ' ' +\n pf(m[3]) + ' ' + pf(m[4]) + ' ' + pf(m[5]) + ')';\n }\n\n function SVGGraphics(commonObjs, objs, forceDataSchema) {\n this.current = new SVGExtraState();\n this.transformMatrix = IDENTITY_MATRIX; // Graphics state matrix\n this.transformStack = [];\n this.extraStack = [];\n this.commonObjs = commonObjs;\n this.objs = objs;\n this.pendingClip = null;\n this.pendingEOFill = false;\n\n this.embedFonts = false;\n this.embeddedFonts = Object.create(null);\n this.cssStyle = null;\n this.forceDataSchema = !!forceDataSchema;\n }\n\n var NS = 'http://www.w3.org/2000/svg';\n var XML_NS = 'http://www.w3.org/XML/1998/namespace';\n var XLINK_NS = 'http://www.w3.org/1999/xlink';\n var LINE_CAP_STYLES = ['butt', 'round', 'square'];\n var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];\n var clipCount = 0;\n var maskCount = 0;\n\n SVGGraphics.prototype = {\n save: function SVGGraphics_save() {\n this.transformStack.push(this.transformMatrix);\n var old = this.current;\n this.extraStack.push(old);\n this.current = old.clone();\n },\n\n restore: function SVGGraphics_restore() {\n this.transformMatrix = this.transformStack.pop();\n this.current = this.extraStack.pop();\n\n this.pendingClip = null;\n this.tgrp = null;\n },\n\n group: function SVGGraphics_group(items) {\n this.save();\n this.executeOpTree(items);\n this.restore();\n },\n\n loadDependencies: function SVGGraphics_loadDependencies(operatorList) {\n var fnArray = operatorList.fnArray;\n var fnArrayLen = fnArray.length;\n var argsArray = operatorList.argsArray;\n\n for (var i = 0; i < fnArrayLen; i++) {\n if (OPS.dependency === fnArray[i]) {\n var deps = argsArray[i];\n for (var n = 0, nn = deps.length; n < nn; n++) {\n var obj = deps[n];\n var common = obj.substring(0, 2) === 'g_';\n var promise;\n if (common) {\n promise = new Promise((resolve) => {\n this.commonObjs.get(obj, resolve);\n });\n } else {\n promise = new Promise((resolve) => {\n this.objs.get(obj, resolve);\n });\n }\n this.current.dependencies.push(promise);\n }\n }\n }\n return Promise.all(this.current.dependencies);\n },\n\n transform: function SVGGraphics_transform(a, b, c, d, e, f) {\n var transformMatrix = [a, b, c, d, e, f];\n this.transformMatrix = Util.transform(this.transformMatrix,\n transformMatrix);\n this.tgrp = null;\n },\n\n getSVG: function SVGGraphics_getSVG(operatorList, viewport) {\n this.viewport = viewport;\n\n var svgElement = this._initialize(viewport);\n return this.loadDependencies(operatorList).then(() => {\n this.transformMatrix = IDENTITY_MATRIX;\n var opTree = this.convertOpList(operatorList);\n this.executeOpTree(opTree);\n return svgElement;\n });\n },\n\n convertOpList: function SVGGraphics_convertOpList(operatorList) {\n var argsArray = operatorList.argsArray;\n var fnArray = operatorList.fnArray;\n var fnArrayLen = fnArray.length;\n var REVOPS = [];\n var opList = [];\n\n for (var op in OPS) {\n REVOPS[OPS[op]] = op;\n }\n\n for (var x = 0; x < fnArrayLen; x++) {\n var fnId = fnArray[x];\n opList.push({\n 'fnId': fnId,\n 'fn': REVOPS[fnId],\n 'args': argsArray[x],\n });\n }\n return opListToTree(opList);\n },\n\n executeOpTree: function SVGGraphics_executeOpTree(opTree) {\n var opTreeLen = opTree.length;\n for (var x = 0; x < opTreeLen; x++) {\n var fn = opTree[x].fn;\n var fnId = opTree[x].fnId;\n var args = opTree[x].args;\n\n switch (fnId | 0) {\n case OPS.beginText:\n this.beginText();\n break;\n case OPS.setLeading:\n this.setLeading(args);\n break;\n case OPS.setLeadingMoveText:\n this.setLeadingMoveText(args[0], args[1]);\n break;\n case OPS.setFont:\n this.setFont(args);\n break;\n case OPS.showText:\n this.showText(args[0]);\n break;\n case OPS.showSpacedText:\n this.showText(args[0]);\n break;\n case OPS.endText:\n this.endText();\n break;\n case OPS.moveText:\n this.moveText(args[0], args[1]);\n break;\n case OPS.setCharSpacing:\n this.setCharSpacing(args[0]);\n break;\n case OPS.setWordSpacing:\n this.setWordSpacing(args[0]);\n break;\n case OPS.setHScale:\n this.setHScale(args[0]);\n break;\n case OPS.setTextMatrix:\n this.setTextMatrix(args[0], args[1], args[2],\n args[3], args[4], args[5]);\n break;\n case OPS.setLineWidth:\n this.setLineWidth(args[0]);\n break;\n case OPS.setLineJoin:\n this.setLineJoin(args[0]);\n break;\n case OPS.setLineCap:\n this.setLineCap(args[0]);\n break;\n case OPS.setMiterLimit:\n this.setMiterLimit(args[0]);\n break;\n case OPS.setFillRGBColor:\n this.setFillRGBColor(args[0], args[1], args[2]);\n break;\n case OPS.setStrokeRGBColor:\n this.setStrokeRGBColor(args[0], args[1], args[2]);\n break;\n case OPS.setDash:\n this.setDash(args[0], args[1]);\n break;\n case OPS.setGState:\n this.setGState(args[0]);\n break;\n case OPS.fill:\n this.fill();\n break;\n case OPS.eoFill:\n this.eoFill();\n break;\n case OPS.stroke:\n this.stroke();\n break;\n case OPS.fillStroke:\n this.fillStroke();\n break;\n case OPS.eoFillStroke:\n this.eoFillStroke();\n break;\n case OPS.clip:\n this.clip('nonzero');\n break;\n case OPS.eoClip:\n this.clip('evenodd');\n break;\n case OPS.paintSolidColorImageMask:\n this.paintSolidColorImageMask();\n break;\n case OPS.paintJpegXObject:\n this.paintJpegXObject(args[0], args[1], args[2]);\n break;\n case OPS.paintImageXObject:\n this.paintImageXObject(args[0]);\n break;\n case OPS.paintInlineImageXObject:\n this.paintInlineImageXObject(args[0]);\n break;\n case OPS.paintImageMaskXObject:\n this.paintImageMaskXObject(args[0]);\n break;\n case OPS.paintFormXObjectBegin:\n this.paintFormXObjectBegin(args[0], args[1]);\n break;\n case OPS.paintFormXObjectEnd:\n this.paintFormXObjectEnd();\n break;\n case OPS.closePath:\n this.closePath();\n break;\n case OPS.closeStroke:\n this.closeStroke();\n break;\n case OPS.closeFillStroke:\n this.closeFillStroke();\n break;\n case OPS.nextLine:\n this.nextLine();\n break;\n case OPS.transform:\n this.transform(args[0], args[1], args[2], args[3],\n args[4], args[5]);\n break;\n case OPS.constructPath:\n this.constructPath(args[0], args[1]);\n break;\n case OPS.endPath:\n this.endPath();\n break;\n case 92:\n this.group(opTree[x].items);\n break;\n default:\n warn('Unimplemented operator ' + fn);\n break;\n }\n }\n },\n\n setWordSpacing: function SVGGraphics_setWordSpacing(wordSpacing) {\n this.current.wordSpacing = wordSpacing;\n },\n\n setCharSpacing: function SVGGraphics_setCharSpacing(charSpacing) {\n this.current.charSpacing = charSpacing;\n },\n\n nextLine: function SVGGraphics_nextLine() {\n this.moveText(0, this.current.leading);\n },\n\n setTextMatrix: function SVGGraphics_setTextMatrix(a, b, c, d, e, f) {\n var current = this.current;\n this.current.textMatrix = this.current.lineMatrix = [a, b, c, d, e, f];\n\n this.current.x = this.current.lineX = 0;\n this.current.y = this.current.lineY = 0;\n\n current.xcoords = [];\n current.tspan = document.createElementNS(NS, 'svg:tspan');\n current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);\n current.tspan.setAttributeNS(null, 'font-size',\n pf(current.fontSize) + 'px');\n current.tspan.setAttributeNS(null, 'y', pf(-current.y));\n\n current.txtElement = document.createElementNS(NS, 'svg:text');\n current.txtElement.appendChild(current.tspan);\n },\n\n beginText: function SVGGraphics_beginText() {\n this.current.x = this.current.lineX = 0;\n this.current.y = this.current.lineY = 0;\n this.current.textMatrix = IDENTITY_MATRIX;\n this.current.lineMatrix = IDENTITY_MATRIX;\n this.current.tspan = document.createElementNS(NS, 'svg:tspan');\n this.current.txtElement = document.createElementNS(NS, 'svg:text');\n this.current.txtgrp = document.createElementNS(NS, 'svg:g');\n this.current.xcoords = [];\n },\n\n moveText: function SVGGraphics_moveText(x, y) {\n var current = this.current;\n this.current.x = this.current.lineX += x;\n this.current.y = this.current.lineY += y;\n\n current.xcoords = [];\n current.tspan = document.createElementNS(NS, 'svg:tspan');\n current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);\n current.tspan.setAttributeNS(null, 'font-size',\n pf(current.fontSize) + 'px');\n current.tspan.setAttributeNS(null, 'y', pf(-current.y));\n },\n\n showText: function SVGGraphics_showText(glyphs) {\n var current = this.current;\n var font = current.font;\n var fontSize = current.fontSize;\n\n if (fontSize === 0) {\n return;\n }\n\n var charSpacing = current.charSpacing;\n var wordSpacing = current.wordSpacing;\n var fontDirection = current.fontDirection;\n var textHScale = current.textHScale * fontDirection;\n var glyphsLength = glyphs.length;\n var vertical = font.vertical;\n var widthAdvanceScale = fontSize * current.fontMatrix[0];\n\n var x = 0, i;\n for (i = 0; i < glyphsLength; ++i) {\n var glyph = glyphs[i];\n if (glyph === null) {\n // word break\n x += fontDirection * wordSpacing;\n continue;\n } else if (isNum(glyph)) {\n x += -glyph * fontSize * 0.001;\n continue;\n }\n current.xcoords.push(current.x + x * textHScale);\n\n var width = glyph.width;\n var character = glyph.fontChar;\n var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;\n var charWidth = width * widthAdvanceScale + spacing * fontDirection;\n x += charWidth;\n\n current.tspan.textContent += character;\n }\n if (vertical) {\n current.y -= x * textHScale;\n } else {\n current.x += x * textHScale;\n }\n\n current.tspan.setAttributeNS(null, 'x',\n current.xcoords.map(pf).join(' '));\n current.tspan.setAttributeNS(null, 'y', pf(-current.y));\n current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);\n current.tspan.setAttributeNS(null, 'font-size',\n pf(current.fontSize) + 'px');\n if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {\n current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);\n }\n if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {\n current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);\n }\n if (current.fillColor !== SVG_DEFAULTS.fillColor) {\n current.tspan.setAttributeNS(null, 'fill', current.fillColor);\n }\n\n current.txtElement.setAttributeNS(null, 'transform',\n pm(current.textMatrix) +\n ' scale(1, -1)');\n current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');\n current.txtElement.appendChild(current.tspan);\n current.txtgrp.appendChild(current.txtElement);\n\n this._ensureTransformGroup().appendChild(current.txtElement);\n },\n\n setLeadingMoveText: function SVGGraphics_setLeadingMoveText(x, y) {\n this.setLeading(-y);\n this.moveText(x, y);\n },\n\n addFontStyle: function SVGGraphics_addFontStyle(fontObj) {\n if (!this.cssStyle) {\n this.cssStyle = document.createElementNS(NS, 'svg:style');\n this.cssStyle.setAttributeNS(null, 'type', 'text/css');\n this.defs.appendChild(this.cssStyle);\n }\n\n var url = createObjectURL(fontObj.data, fontObj.mimetype,\n this.forceDataSchema);\n this.cssStyle.textContent +=\n '@font-face { font-family: \"' + fontObj.loadedName + '\";' +\n ' src: url(' + url + '); }\\n';\n },\n\n setFont: function SVGGraphics_setFont(details) {\n var current = this.current;\n var fontObj = this.commonObjs.get(details[0]);\n var size = details[1];\n this.current.font = fontObj;\n\n if (this.embedFonts && fontObj.data &&\n !this.embeddedFonts[fontObj.loadedName]) {\n this.addFontStyle(fontObj);\n this.embeddedFonts[fontObj.loadedName] = fontObj;\n }\n\n current.fontMatrix = (fontObj.fontMatrix ?\n fontObj.fontMatrix : FONT_IDENTITY_MATRIX);\n\n var bold = fontObj.black ? (fontObj.bold ? 'bolder' : 'bold') :\n (fontObj.bold ? 'bold' : 'normal');\n var italic = fontObj.italic ? 'italic' : 'normal';\n\n if (size < 0) {\n size = -size;\n current.fontDirection = -1;\n } else {\n current.fontDirection = 1;\n }\n current.fontSize = size;\n current.fontFamily = fontObj.loadedName;\n current.fontWeight = bold;\n current.fontStyle = italic;\n\n current.tspan = document.createElementNS(NS, 'svg:tspan');\n current.tspan.setAttributeNS(null, 'y', pf(-current.y));\n current.xcoords = [];\n },\n\n endText: function SVGGraphics_endText() {},\n\n // Path properties\n setLineWidth: function SVGGraphics_setLineWidth(width) {\n this.current.lineWidth = width;\n },\n setLineCap: function SVGGraphics_setLineCap(style) {\n this.current.lineCap = LINE_CAP_STYLES[style];\n },\n setLineJoin: function SVGGraphics_setLineJoin(style) {\n this.current.lineJoin = LINE_JOIN_STYLES[style];\n },\n setMiterLimit: function SVGGraphics_setMiterLimit(limit) {\n this.current.miterLimit = limit;\n },\n setStrokeAlpha: function SVGGraphics_setStrokeAlpha(strokeAlpha) {\n this.current.strokeAlpha = strokeAlpha;\n },\n setStrokeRGBColor: function SVGGraphics_setStrokeRGBColor(r, g, b) {\n var color = Util.makeCssRgb(r, g, b);\n this.current.strokeColor = color;\n },\n setFillAlpha: function SVGGraphics_setFillAlpha(fillAlpha) {\n this.current.fillAlpha = fillAlpha;\n },\n setFillRGBColor: function SVGGraphics_setFillRGBColor(r, g, b) {\n var color = Util.makeCssRgb(r, g, b);\n this.current.fillColor = color;\n this.current.tspan = document.createElementNS(NS, 'svg:tspan');\n this.current.xcoords = [];\n },\n setDash: function SVGGraphics_setDash(dashArray, dashPhase) {\n this.current.dashArray = dashArray;\n this.current.dashPhase = dashPhase;\n },\n\n constructPath: function SVGGraphics_constructPath(ops, args) {\n var current = this.current;\n var x = current.x, y = current.y;\n current.path = document.createElementNS(NS, 'svg:path');\n var d = [];\n var opLength = ops.length;\n\n for (var i = 0, j = 0; i < opLength; i++) {\n switch (ops[i] | 0) {\n case OPS.rectangle:\n x = args[j++];\n y = args[j++];\n var width = args[j++];\n var height = args[j++];\n var xw = x + width;\n var yh = y + height;\n d.push('M', pf(x), pf(y), 'L', pf(xw), pf(y), 'L', pf(xw), pf(yh),\n 'L', pf(x), pf(yh), 'Z');\n break;\n case OPS.moveTo:\n x = args[j++];\n y = args[j++];\n d.push('M', pf(x), pf(y));\n break;\n case OPS.lineTo:\n x = args[j++];\n y = args[j++];\n d.push('L', pf(x), pf(y));\n break;\n case OPS.curveTo:\n x = args[j + 4];\n y = args[j + 5];\n d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]),\n pf(args[j + 3]), pf(x), pf(y));\n j += 6;\n break;\n case OPS.curveTo2:\n x = args[j + 2];\n y = args[j + 3];\n d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]),\n pf(args[j + 2]), pf(args[j + 3]));\n j += 4;\n break;\n case OPS.curveTo3:\n x = args[j + 2];\n y = args[j + 3];\n d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y),\n pf(x), pf(y));\n j += 4;\n break;\n case OPS.closePath:\n d.push('Z');\n break;\n }\n }\n current.path.setAttributeNS(null, 'd', d.join(' '));\n current.path.setAttributeNS(null, 'fill', 'none');\n\n this._ensureTransformGroup().appendChild(current.path);\n\n // Saving a reference in current.element so that it can be addressed\n // in 'fill' and 'stroke'\n current.element = current.path;\n current.setCurrentPoint(x, y);\n },\n\n endPath: function SVGGraphics_endPath() {\n if (!this.pendingClip) {\n return;\n }\n var current = this.current;\n // Add current path to clipping path\n var clipId = 'clippath' + clipCount;\n clipCount++;\n var clipPath = document.createElementNS(NS, 'svg:clipPath');\n clipPath.setAttributeNS(null, 'id', clipId);\n clipPath.setAttributeNS(null, 'transform', pm(this.transformMatrix));\n var clipElement = current.element.cloneNode();\n if (this.pendingClip === 'evenodd') {\n clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');\n } else {\n clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');\n }\n this.pendingClip = null;\n clipPath.appendChild(clipElement);\n this.defs.appendChild(clipPath);\n\n if (current.activeClipUrl) {\n // The previous clipping group content can go out of order -- resetting\n // cached clipGroups.\n current.clipGroup = null;\n this.extraStack.forEach(function (prev) {\n prev.clipGroup = null;\n });\n }\n current.activeClipUrl = 'url(#' + clipId + ')';\n\n this.tgrp = null;\n },\n\n clip: function SVGGraphics_clip(type) {\n this.pendingClip = type;\n },\n\n closePath: function SVGGraphics_closePath() {\n var current = this.current;\n var d = current.path.getAttributeNS(null, 'd');\n d += 'Z';\n current.path.setAttributeNS(null, 'd', d);\n },\n\n setLeading: function SVGGraphics_setLeading(leading) {\n this.current.leading = -leading;\n },\n\n setTextRise: function SVGGraphics_setTextRise(textRise) {\n this.current.textRise = textRise;\n },\n\n setHScale: function SVGGraphics_setHScale(scale) {\n this.current.textHScale = scale / 100;\n },\n\n setGState: function SVGGraphics_setGState(states) {\n for (var i = 0, ii = states.length; i < ii; i++) {\n var state = states[i];\n var key = state[0];\n var value = state[1];\n\n switch (key) {\n case 'LW':\n this.setLineWidth(value);\n break;\n case 'LC':\n this.setLineCap(value);\n break;\n case 'LJ':\n this.setLineJoin(value);\n break;\n case 'ML':\n this.setMiterLimit(value);\n break;\n case 'D':\n this.setDash(value[0], value[1]);\n break;\n case 'Font':\n this.setFont(value);\n break;\n case 'CA':\n this.setStrokeAlpha(value);\n break;\n case 'ca':\n this.setFillAlpha(value);\n break;\n default:\n warn('Unimplemented graphic state ' + key);\n break;\n }\n }\n },\n\n fill: function SVGGraphics_fill() {\n var current = this.current;\n current.element.setAttributeNS(null, 'fill', current.fillColor);\n current.element.setAttributeNS(null, 'fill-opacity', current.fillAlpha);\n },\n\n stroke: function SVGGraphics_stroke() {\n var current = this.current;\n\n current.element.setAttributeNS(null, 'stroke', current.strokeColor);\n current.element.setAttributeNS(null, 'stroke-opacity',\n current.strokeAlpha);\n current.element.setAttributeNS(null, 'stroke-miterlimit',\n pf(current.miterLimit));\n current.element.setAttributeNS(null, 'stroke-linecap', current.lineCap);\n current.element.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);\n current.element.setAttributeNS(null, 'stroke-width',\n pf(current.lineWidth) + 'px');\n current.element.setAttributeNS(null, 'stroke-dasharray',\n current.dashArray.map(pf).join(' '));\n current.element.setAttributeNS(null, 'stroke-dashoffset',\n pf(current.dashPhase) + 'px');\n\n current.element.setAttributeNS(null, 'fill', 'none');\n },\n\n eoFill: function SVGGraphics_eoFill() {\n this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');\n this.fill();\n },\n\n fillStroke: function SVGGraphics_fillStroke() {\n // Order is important since stroke wants fill to be none.\n // First stroke, then if fill needed, it will be overwritten.\n this.stroke();\n this.fill();\n },\n\n eoFillStroke: function SVGGraphics_eoFillStroke() {\n this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');\n this.fillStroke();\n },\n\n closeStroke: function SVGGraphics_closeStroke() {\n this.closePath();\n this.stroke();\n },\n\n closeFillStroke: function SVGGraphics_closeFillStroke() {\n this.closePath();\n this.fillStroke();\n },\n\n paintSolidColorImageMask:\n function SVGGraphics_paintSolidColorImageMask() {\n var current = this.current;\n var rect = document.createElementNS(NS, 'svg:rect');\n rect.setAttributeNS(null, 'x', '0');\n rect.setAttributeNS(null, 'y', '0');\n rect.setAttributeNS(null, 'width', '1px');\n rect.setAttributeNS(null, 'height', '1px');\n rect.setAttributeNS(null, 'fill', current.fillColor);\n\n this._ensureTransformGroup().appendChild(rect);\n },\n\n paintJpegXObject: function SVGGraphics_paintJpegXObject(objId, w, h) {\n var imgObj = this.objs.get(objId);\n var imgEl = document.createElementNS(NS, 'svg:image');\n imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);\n imgEl.setAttributeNS(null, 'width', pf(w));\n imgEl.setAttributeNS(null, 'height', pf(h));\n imgEl.setAttributeNS(null, 'x', '0');\n imgEl.setAttributeNS(null, 'y', pf(-h));\n imgEl.setAttributeNS(null, 'transform',\n 'scale(' + pf(1 / w) + ' ' + pf(-1 / h) + ')');\n\n this._ensureTransformGroup().appendChild(imgEl);\n },\n\n paintImageXObject: function SVGGraphics_paintImageXObject(objId) {\n var imgData = this.objs.get(objId);\n if (!imgData) {\n warn('Dependent image isn\\'t ready yet');\n return;\n }\n this.paintInlineImageXObject(imgData);\n },\n\n paintInlineImageXObject:\n function SVGGraphics_paintInlineImageXObject(imgData, mask) {\n var width = imgData.width;\n var height = imgData.height;\n\n var imgSrc = convertImgDataToPng(imgData, this.forceDataSchema);\n var cliprect = document.createElementNS(NS, 'svg:rect');\n cliprect.setAttributeNS(null, 'x', '0');\n cliprect.setAttributeNS(null, 'y', '0');\n cliprect.setAttributeNS(null, 'width', pf(width));\n cliprect.setAttributeNS(null, 'height', pf(height));\n this.current.element = cliprect;\n this.clip('nonzero');\n var imgEl = document.createElementNS(NS, 'svg:image');\n imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);\n imgEl.setAttributeNS(null, 'x', '0');\n imgEl.setAttributeNS(null, 'y', pf(-height));\n imgEl.setAttributeNS(null, 'width', pf(width) + 'px');\n imgEl.setAttributeNS(null, 'height', pf(height) + 'px');\n imgEl.setAttributeNS(null, 'transform',\n 'scale(' + pf(1 / width) + ' ' +\n pf(-1 / height) + ')');\n if (mask) {\n mask.appendChild(imgEl);\n } else {\n this._ensureTransformGroup().appendChild(imgEl);\n }\n },\n\n paintImageMaskXObject:\n function SVGGraphics_paintImageMaskXObject(imgData) {\n var current = this.current;\n var width = imgData.width;\n var height = imgData.height;\n var fillColor = current.fillColor;\n\n current.maskId = 'mask' + maskCount++;\n var mask = document.createElementNS(NS, 'svg:mask');\n mask.setAttributeNS(null, 'id', current.maskId);\n\n var rect = document.createElementNS(NS, 'svg:rect');\n rect.setAttributeNS(null, 'x', '0');\n rect.setAttributeNS(null, 'y', '0');\n rect.setAttributeNS(null, 'width', pf(width));\n rect.setAttributeNS(null, 'height', pf(height));\n rect.setAttributeNS(null, 'fill', fillColor);\n rect.setAttributeNS(null, 'mask', 'url(#' + current.maskId + ')');\n this.defs.appendChild(mask);\n\n this._ensureTransformGroup().appendChild(rect);\n\n this.paintInlineImageXObject(imgData, mask);\n },\n\n paintFormXObjectBegin:\n function SVGGraphics_paintFormXObjectBegin(matrix, bbox) {\n if (isArray(matrix) && matrix.length === 6) {\n this.transform(matrix[0], matrix[1], matrix[2],\n matrix[3], matrix[4], matrix[5]);\n }\n\n if (isArray(bbox) && bbox.length === 4) {\n var width = bbox[2] - bbox[0];\n var height = bbox[3] - bbox[1];\n\n var cliprect = document.createElementNS(NS, 'svg:rect');\n cliprect.setAttributeNS(null, 'x', bbox[0]);\n cliprect.setAttributeNS(null, 'y', bbox[1]);\n cliprect.setAttributeNS(null, 'width', pf(width));\n cliprect.setAttributeNS(null, 'height', pf(height));\n this.current.element = cliprect;\n this.clip('nonzero');\n this.endPath();\n }\n },\n\n paintFormXObjectEnd:\n function SVGGraphics_paintFormXObjectEnd() {},\n\n /**\n * @private\n */\n _initialize: function SVGGraphics_initialize(viewport) {\n // Create the SVG element.\n var svg = document.createElementNS(NS, 'svg:svg');\n svg.setAttributeNS(null, 'version', '1.1');\n svg.setAttributeNS(null, 'width', viewport.width + 'px');\n svg.setAttributeNS(null, 'height', viewport.height + 'px');\n svg.setAttributeNS(null, 'preserveAspectRatio', 'none');\n svg.setAttributeNS(null, 'viewBox', '0 0 ' + viewport.width +\n ' ' + viewport.height);\n\n // Create the definitions element.\n var definitions = document.createElementNS(NS, 'svg:defs');\n svg.appendChild(definitions);\n this.defs = definitions;\n\n // Create the root group element, which acts a container for all other\n // groups and applies the viewport transform.\n var rootGroup = document.createElementNS(NS, 'svg:g');\n rootGroup.setAttributeNS(null, 'transform', pm(viewport.transform));\n svg.appendChild(rootGroup);\n\n // For the construction of the SVG image we are only interested in the\n // root group, so we expose it as the entry point of the SVG image for\n // the other code in this class.\n this.svg = rootGroup;\n\n return svg;\n },\n\n /**\n * @private\n */\n _ensureClipGroup: function SVGGraphics_ensureClipGroup() {\n if (!this.current.clipGroup) {\n var clipGroup = document.createElementNS(NS, 'svg:g');\n clipGroup.setAttributeNS(null, 'clip-path',\n this.current.activeClipUrl);\n this.svg.appendChild(clipGroup);\n this.current.clipGroup = clipGroup;\n }\n return this.current.clipGroup;\n },\n\n /**\n * @private\n */\n _ensureTransformGroup: function SVGGraphics_ensureTransformGroup() {\n if (!this.tgrp) {\n this.tgrp = document.createElementNS(NS, 'svg:g');\n this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));\n if (this.current.activeClipUrl) {\n this._ensureClipGroup().appendChild(this.tgrp);\n } else {\n this.svg.appendChild(this.tgrp);\n }\n }\n return this.tgrp;\n },\n };\n return SVGGraphics;\n})();\n\n}\n\nexport {\n SVGGraphics,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/svg.js","/* Copyright 2015 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { AbortException, createPromiseCapability, Util } from '../shared/util';\nimport { CustomStyle, getDefaultSetting } from './dom_utils';\n\n/**\n * Text layer render parameters.\n *\n * @typedef {Object} TextLayerRenderParameters\n * @property {TextContent} textContent - (optional) Text content to render\n * (the object is returned by the page's getTextContent() method).\n * @property {ReadableStream} textContentStream - (optional) Text content\n * stream to render (the stream is returned by the page's\n * streamTextContent() method).\n * @property {HTMLElement} container - HTML element that will contain text runs.\n * @property {PageViewport} viewport - The target viewport to properly\n * layout the text runs.\n * @property {Array} textDivs - (optional) HTML elements that are correspond\n * the text items of the textContent input. This is output and shall be\n * initially be set to empty array.\n * @property {Array} textContentItemsStr - (optional) Strings that correspond\n * the `str` property of the text items of textContent input. This is output\n * and shall be initially be set to empty array.\n * @property {number} timeout - (optional) Delay in milliseconds before\n * rendering of the text runs occurs.\n * @property {boolean} enhanceTextSelection - (optional) Whether to turn on the\n * text selection enhancement.\n */\nvar renderTextLayer = (function renderTextLayerClosure() {\n var MAX_TEXT_DIVS_TO_RENDER = 100000;\n\n var NonWhitespaceRegexp = /\\S/;\n\n function isAllWhitespace(str) {\n return !NonWhitespaceRegexp.test(str);\n }\n\n // Text layers may contain many thousand div's, and using `styleBuf` avoids\n // creating many intermediate strings when building their 'style' properties.\n var styleBuf = ['left: ', 0, 'px; top: ', 0, 'px; font-size: ', 0,\n 'px; font-family: ', '', ';'];\n\n function appendText(task, geom, styles) {\n // Initialize all used properties to keep the caches monomorphic.\n var textDiv = document.createElement('div');\n var textDivProperties = {\n style: null,\n angle: 0,\n canvasWidth: 0,\n isWhitespace: false,\n originalTransform: null,\n paddingBottom: 0,\n paddingLeft: 0,\n paddingRight: 0,\n paddingTop: 0,\n scale: 1,\n };\n\n task._textDivs.push(textDiv);\n if (isAllWhitespace(geom.str)) {\n textDivProperties.isWhitespace = true;\n task._textDivProperties.set(textDiv, textDivProperties);\n return;\n }\n\n var tx = Util.transform(task._viewport.transform, geom.transform);\n var angle = Math.atan2(tx[1], tx[0]);\n var style = styles[geom.fontName];\n if (style.vertical) {\n angle += Math.PI / 2;\n }\n var fontHeight = Math.sqrt((tx[2] * tx[2]) + (tx[3] * tx[3]));\n var fontAscent = fontHeight;\n if (style.ascent) {\n fontAscent = style.ascent * fontAscent;\n } else if (style.descent) {\n fontAscent = (1 + style.descent) * fontAscent;\n }\n\n var left;\n var top;\n if (angle === 0) {\n left = tx[4];\n top = tx[5] - fontAscent;\n } else {\n left = tx[4] + (fontAscent * Math.sin(angle));\n top = tx[5] - (fontAscent * Math.cos(angle));\n }\n styleBuf[1] = left;\n styleBuf[3] = top;\n styleBuf[5] = fontHeight;\n styleBuf[7] = style.fontFamily;\n textDivProperties.style = styleBuf.join('');\n textDiv.setAttribute('style', textDivProperties.style);\n\n textDiv.textContent = geom.str;\n // |fontName| is only used by the Font Inspector. This test will succeed\n // when e.g. the Font Inspector is off but the Stepper is on, but it's\n // not worth the effort to do a more accurate test. We only use `dataset`\n // here to make the font name available for the debugger.\n if (getDefaultSetting('pdfBug')) {\n textDiv.dataset.fontName = geom.fontName;\n }\n if (angle !== 0) {\n textDivProperties.angle = angle * (180 / Math.PI);\n }\n // We don't bother scaling single-char text divs, because it has very\n // little effect on text highlighting. This makes scrolling on docs with\n // lots of such divs a lot faster.\n if (geom.str.length > 1) {\n if (style.vertical) {\n textDivProperties.canvasWidth = geom.height * task._viewport.scale;\n } else {\n textDivProperties.canvasWidth = geom.width * task._viewport.scale;\n }\n }\n task._textDivProperties.set(textDiv, textDivProperties);\n if (task._textContentStream) {\n task._layoutText(textDiv);\n }\n\n if (task._enhanceTextSelection) {\n var angleCos = 1, angleSin = 0;\n if (angle !== 0) {\n angleCos = Math.cos(angle);\n angleSin = Math.sin(angle);\n }\n var divWidth = (style.vertical ? geom.height : geom.width) *\n task._viewport.scale;\n var divHeight = fontHeight;\n\n var m, b;\n if (angle !== 0) {\n m = [angleCos, angleSin, -angleSin, angleCos, left, top];\n b = Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);\n } else {\n b = [left, top, left + divWidth, top + divHeight];\n }\n\n task._bounds.push({\n left: b[0],\n top: b[1],\n right: b[2],\n bottom: b[3],\n div: textDiv,\n size: [divWidth, divHeight],\n m,\n });\n }\n }\n\n function render(task) {\n if (task._canceled) {\n return;\n }\n var textDivs = task._textDivs;\n var capability = task._capability;\n var textDivsLength = textDivs.length;\n\n // No point in rendering many divs as it would make the browser\n // unusable even after the divs are rendered.\n if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {\n task._renderingDone = true;\n capability.resolve();\n return;\n }\n\n if (!task._textContentStream) {\n for (var i = 0; i < textDivsLength; i++) {\n task._layoutText(textDivs[i]);\n }\n }\n\n task._renderingDone = true;\n capability.resolve();\n }\n\n function expand(task) {\n var bounds = task._bounds;\n var viewport = task._viewport;\n\n var expanded = expandBounds(viewport.width, viewport.height, bounds);\n for (var i = 0; i < expanded.length; i++) {\n var div = bounds[i].div;\n var divProperties = task._textDivProperties.get(div);\n if (divProperties.angle === 0) {\n divProperties.paddingLeft = bounds[i].left - expanded[i].left;\n divProperties.paddingTop = bounds[i].top - expanded[i].top;\n divProperties.paddingRight = expanded[i].right - bounds[i].right;\n divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;\n task._textDivProperties.set(div, divProperties);\n continue;\n }\n // Box is rotated -- trying to find padding so rotated div will not\n // exceed its expanded bounds.\n var e = expanded[i], b = bounds[i];\n var m = b.m, c = m[0], s = m[1];\n // Finding intersections with expanded box.\n var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];\n var ts = new Float64Array(64);\n points.forEach(function (p, i) {\n var t = Util.applyTransform(p, m);\n ts[i + 0] = c && (e.left - t[0]) / c;\n ts[i + 4] = s && (e.top - t[1]) / s;\n ts[i + 8] = c && (e.right - t[0]) / c;\n ts[i + 12] = s && (e.bottom - t[1]) / s;\n\n ts[i + 16] = s && (e.left - t[0]) / -s;\n ts[i + 20] = c && (e.top - t[1]) / c;\n ts[i + 24] = s && (e.right - t[0]) / -s;\n ts[i + 28] = c && (e.bottom - t[1]) / c;\n\n ts[i + 32] = c && (e.left - t[0]) / -c;\n ts[i + 36] = s && (e.top - t[1]) / -s;\n ts[i + 40] = c && (e.right - t[0]) / -c;\n ts[i + 44] = s && (e.bottom - t[1]) / -s;\n\n ts[i + 48] = s && (e.left - t[0]) / s;\n ts[i + 52] = c && (e.top - t[1]) / -c;\n ts[i + 56] = s && (e.right - t[0]) / s;\n ts[i + 60] = c && (e.bottom - t[1]) / -c;\n });\n var findPositiveMin = function (ts, offset, count) {\n var result = 0;\n for (var i = 0; i < count; i++) {\n var t = ts[offset++];\n if (t > 0) {\n result = result ? Math.min(t, result) : t;\n }\n }\n return result;\n };\n // Not based on math, but to simplify calculations, using cos and sin\n // absolute values to not exceed the box (it can but insignificantly).\n var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));\n divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;\n divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;\n divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;\n divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;\n task._textDivProperties.set(div, divProperties);\n }\n }\n\n function expandBounds(width, height, boxes) {\n var bounds = boxes.map(function (box, i) {\n return {\n x1: box.left,\n y1: box.top,\n x2: box.right,\n y2: box.bottom,\n index: i,\n x1New: undefined,\n x2New: undefined,\n };\n });\n expandBoundsLTR(width, bounds);\n var expanded = new Array(boxes.length);\n bounds.forEach(function (b) {\n var i = b.index;\n expanded[i] = {\n left: b.x1New,\n top: 0,\n right: b.x2New,\n bottom: 0,\n };\n });\n\n // Rotating on 90 degrees and extending extended boxes. Reusing the bounds\n // array and objects.\n boxes.map(function (box, i) {\n var e = expanded[i], b = bounds[i];\n b.x1 = box.top;\n b.y1 = width - e.right;\n b.x2 = box.bottom;\n b.y2 = width - e.left;\n b.index = i;\n b.x1New = undefined;\n b.x2New = undefined;\n });\n expandBoundsLTR(height, bounds);\n\n bounds.forEach(function (b) {\n var i = b.index;\n expanded[i].top = b.x1New;\n expanded[i].bottom = b.x2New;\n });\n return expanded;\n }\n\n function expandBoundsLTR(width, bounds) {\n // Sorting by x1 coordinate and walk by the bounds in the same order.\n bounds.sort(function (a, b) {\n return a.x1 - b.x1 || a.index - b.index;\n });\n\n // First we see on the horizon is a fake boundary.\n var fakeBoundary = {\n x1: -Infinity,\n y1: -Infinity,\n x2: 0,\n y2: Infinity,\n index: -1,\n x1New: 0,\n x2New: 0,\n };\n var horizon = [{\n start: -Infinity,\n end: Infinity,\n boundary: fakeBoundary,\n }];\n\n bounds.forEach(function (boundary) {\n // Searching for the affected part of horizon.\n // TODO red-black tree or simple binary search\n var i = 0;\n while (i < horizon.length && horizon[i].end <= boundary.y1) {\n i++;\n }\n var j = horizon.length - 1;\n while (j >= 0 && horizon[j].start >= boundary.y2) {\n j--;\n }\n\n var horizonPart, affectedBoundary;\n var q, k, maxXNew = -Infinity;\n for (q = i; q <= j; q++) {\n horizonPart = horizon[q];\n affectedBoundary = horizonPart.boundary;\n var xNew;\n if (affectedBoundary.x2 > boundary.x1) {\n // In the middle of the previous element, new x shall be at the\n // boundary start. Extending if further if the affected bondary\n // placed on top of the current one.\n xNew = affectedBoundary.index > boundary.index ?\n affectedBoundary.x1New : boundary.x1;\n } else if (affectedBoundary.x2New === undefined) {\n // We have some space in between, new x in middle will be a fair\n // choice.\n xNew = (affectedBoundary.x2 + boundary.x1) / 2;\n } else {\n // Affected boundary has x2new set, using it as new x.\n xNew = affectedBoundary.x2New;\n }\n if (xNew > maxXNew) {\n maxXNew = xNew;\n }\n }\n\n // Set new x1 for current boundary.\n boundary.x1New = maxXNew;\n\n // Adjusts new x2 for the affected boundaries.\n for (q = i; q <= j; q++) {\n horizonPart = horizon[q];\n affectedBoundary = horizonPart.boundary;\n if (affectedBoundary.x2New === undefined) {\n // Was not set yet, choosing new x if possible.\n if (affectedBoundary.x2 > boundary.x1) {\n // Current and affected boundaries intersect. If affected boundary\n // is placed on top of the current, shrinking the affected.\n if (affectedBoundary.index > boundary.index) {\n affectedBoundary.x2New = affectedBoundary.x2;\n }\n } else {\n affectedBoundary.x2New = maxXNew;\n }\n } else if (affectedBoundary.x2New > maxXNew) {\n // Affected boundary is touching new x, pushing it back.\n affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);\n }\n }\n\n // Fixing the horizon.\n var changedHorizon = [], lastBoundary = null;\n for (q = i; q <= j; q++) {\n horizonPart = horizon[q];\n affectedBoundary = horizonPart.boundary;\n // Checking which boundary will be visible.\n var useBoundary = affectedBoundary.x2 > boundary.x2 ?\n affectedBoundary : boundary;\n if (lastBoundary === useBoundary) {\n // Merging with previous.\n changedHorizon[changedHorizon.length - 1].end = horizonPart.end;\n } else {\n changedHorizon.push({\n start: horizonPart.start,\n end: horizonPart.end,\n boundary: useBoundary,\n });\n lastBoundary = useBoundary;\n }\n }\n if (horizon[i].start < boundary.y1) {\n changedHorizon[0].start = boundary.y1;\n changedHorizon.unshift({\n start: horizon[i].start,\n end: boundary.y1,\n boundary: horizon[i].boundary,\n });\n }\n if (boundary.y2 < horizon[j].end) {\n changedHorizon[changedHorizon.length - 1].end = boundary.y2;\n changedHorizon.push({\n start: boundary.y2,\n end: horizon[j].end,\n boundary: horizon[j].boundary,\n });\n }\n\n // Set x2 new of boundary that is no longer visible (see overlapping case\n // above).\n // TODO more efficient, e.g. via reference counting.\n for (q = i; q <= j; q++) {\n horizonPart = horizon[q];\n affectedBoundary = horizonPart.boundary;\n if (affectedBoundary.x2New !== undefined) {\n continue;\n }\n var used = false;\n for (k = i - 1; !used && k >= 0 &&\n horizon[k].start >= affectedBoundary.y1; k--) {\n used = horizon[k].boundary === affectedBoundary;\n }\n for (k = j + 1; !used && k < horizon.length &&\n horizon[k].end <= affectedBoundary.y2; k++) {\n used = horizon[k].boundary === affectedBoundary;\n }\n for (k = 0; !used && k < changedHorizon.length; k++) {\n used = changedHorizon[k].boundary === affectedBoundary;\n }\n if (!used) {\n affectedBoundary.x2New = maxXNew;\n }\n }\n\n Array.prototype.splice.apply(horizon,\n [i, j - i + 1].concat(changedHorizon));\n });\n\n // Set new x2 for all unset boundaries.\n horizon.forEach(function (horizonPart) {\n var affectedBoundary = horizonPart.boundary;\n if (affectedBoundary.x2New === undefined) {\n affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);\n }\n });\n }\n\n /**\n * Text layer rendering task.\n *\n * @param {TextContent} textContent\n * @param {HTMLElement} container\n * @param {PageViewport} viewport\n * @param {Array} textDivs\n * @param {boolean} enhanceTextSelection\n * @private\n */\n function TextLayerRenderTask({ textContent, textContentStream, container,\n viewport, textDivs, textContentItemsStr,\n enhanceTextSelection, }) {\n this._textContent = textContent;\n this._textContentStream = textContentStream;\n this._container = container;\n this._viewport = viewport;\n this._textDivs = textDivs || [];\n this._textContentItemsStr = textContentItemsStr || [];\n this._enhanceTextSelection = !!enhanceTextSelection;\n\n this._reader = null;\n this._layoutTextLastFontSize = null;\n this._layoutTextLastFontFamily = null;\n this._layoutTextCtx = null;\n this._textDivProperties = new WeakMap();\n this._renderingDone = false;\n this._canceled = false;\n this._capability = createPromiseCapability();\n this._renderTimer = null;\n this._bounds = [];\n }\n TextLayerRenderTask.prototype = {\n get promise() {\n return this._capability.promise;\n },\n\n cancel: function TextLayer_cancel() {\n if (this._reader) {\n this._reader.cancel(new AbortException('text layer task cancelled'));\n this._reader = null;\n }\n this._canceled = true;\n if (this._renderTimer !== null) {\n clearTimeout(this._renderTimer);\n this._renderTimer = null;\n }\n this._capability.reject('canceled');\n },\n\n _processItems(items, styleCache) {\n for (let i = 0, len = items.length; i < len; i++) {\n this._textContentItemsStr.push(items[i].str);\n appendText(this, items[i], styleCache);\n }\n },\n\n _layoutText(textDiv) {\n let textLayerFrag = this._container;\n\n let textDivProperties = this._textDivProperties.get(textDiv);\n if (textDivProperties.isWhitespace) {\n return;\n }\n\n let fontSize = textDiv.style.fontSize;\n let fontFamily = textDiv.style.fontFamily;\n\n // Only build font string and set to context if different from last.\n if (fontSize !== this._layoutTextLastFontSize ||\n fontFamily !== this._layoutTextLastFontFamily) {\n this._layoutTextCtx.font = fontSize + ' ' + fontFamily;\n this._lastFontSize = fontSize;\n this._lastFontFamily = fontFamily;\n }\n\n let width = this._layoutTextCtx.measureText(textDiv.textContent).width;\n\n let transform = '';\n if (textDivProperties.canvasWidth !== 0 && width > 0) {\n textDivProperties.scale = textDivProperties.canvasWidth / width;\n transform = 'scaleX(' + textDivProperties.scale + ')';\n }\n if (textDivProperties.angle !== 0) {\n transform = 'rotate(' + textDivProperties.angle + 'deg) ' + transform;\n }\n if (transform !== '') {\n textDivProperties.originalTransform = transform;\n CustomStyle.setProp('transform', textDiv, transform);\n }\n this._textDivProperties.set(textDiv, textDivProperties);\n textLayerFrag.appendChild(textDiv);\n },\n\n _render: function TextLayer_render(timeout) {\n let capability = createPromiseCapability();\n let styleCache = Object.create(null);\n\n // The temporary canvas is used to measure text length in the DOM.\n let canvas = document.createElement('canvas');\n if (typeof PDFJSDev === 'undefined' ||\n PDFJSDev.test('FIREFOX || MOZCENTRAL || GENERIC')) {\n canvas.mozOpaque = true;\n }\n this._layoutTextCtx = canvas.getContext('2d', { alpha: false, });\n\n if (this._textContent) {\n let textItems = this._textContent.items;\n let textStyles = this._textContent.styles;\n this._processItems(textItems, textStyles);\n capability.resolve();\n } else if (this._textContentStream) {\n let pump = () => {\n this._reader.read().then(({ value, done, }) => {\n if (done) {\n capability.resolve();\n return;\n }\n\n Util.extendObj(styleCache, value.styles);\n this._processItems(value.items, styleCache);\n pump();\n\n }, capability.reject);\n };\n\n this._reader = this._textContentStream.getReader();\n pump();\n } else {\n throw new Error('Neither \"textContent\" nor \"textContentStream\"' +\n ' parameters specified.');\n }\n\n capability.promise.then(() => {\n styleCache = null;\n if (!timeout) { // Render right away\n render(this);\n } else { // Schedule\n this._renderTimer = setTimeout(() => {\n render(this);\n this._renderTimer = null;\n }, timeout);\n }\n }, this._capability.reject);\n },\n\n expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {\n if (!this._enhanceTextSelection || !this._renderingDone) {\n return;\n }\n if (this._bounds !== null) {\n expand(this);\n this._bounds = null;\n }\n\n for (var i = 0, ii = this._textDivs.length; i < ii; i++) {\n var div = this._textDivs[i];\n var divProperties = this._textDivProperties.get(div);\n\n if (divProperties.isWhitespace) {\n continue;\n }\n if (expandDivs) {\n var transform = '', padding = '';\n\n if (divProperties.scale !== 1) {\n transform = 'scaleX(' + divProperties.scale + ')';\n }\n if (divProperties.angle !== 0) {\n transform = 'rotate(' + divProperties.angle + 'deg) ' + transform;\n }\n if (divProperties.paddingLeft !== 0) {\n padding += ' padding-left: ' +\n (divProperties.paddingLeft / divProperties.scale) + 'px;';\n transform += ' translateX(' +\n (-divProperties.paddingLeft / divProperties.scale) + 'px)';\n }\n if (divProperties.paddingTop !== 0) {\n padding += ' padding-top: ' + divProperties.paddingTop + 'px;';\n transform += ' translateY(' + (-divProperties.paddingTop) + 'px)';\n }\n if (divProperties.paddingRight !== 0) {\n padding += ' padding-right: ' +\n (divProperties.paddingRight / divProperties.scale) + 'px;';\n }\n if (divProperties.paddingBottom !== 0) {\n padding += ' padding-bottom: ' +\n divProperties.paddingBottom + 'px;';\n }\n\n if (padding !== '') {\n div.setAttribute('style', divProperties.style + padding);\n }\n if (transform !== '') {\n CustomStyle.setProp('transform', div, transform);\n }\n } else {\n div.style.padding = 0;\n CustomStyle.setProp('transform', div,\n divProperties.originalTransform || '');\n }\n }\n },\n };\n\n /**\n * Starts rendering of the text layer.\n *\n * @param {TextLayerRenderParameters} renderParameters\n * @returns {TextLayerRenderTask}\n */\n function renderTextLayer(renderParameters) {\n var task = new TextLayerRenderTask({\n textContent: renderParameters.textContent,\n textContentStream: renderParameters.textContentStream,\n container: renderParameters.container,\n viewport: renderParameters.viewport,\n textDivs: renderParameters.textDivs,\n textContentItemsStr: renderParameters.textContentItemsStr,\n enhanceTextSelection: renderParameters.enhanceTextSelection,\n });\n task._render(renderParameters.timeout);\n return task;\n }\n\n return renderTextLayer;\n})();\n\nexport {\n renderTextLayer,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/text_layer.js","/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nfunction fixMetadata(meta) {\n return meta.replace(/>\\\\376\\\\377([^<]+)/g, function(all, codes) {\n var bytes = codes.replace(/\\\\([0-3])([0-7])([0-7])/g,\n function(code, d1, d2, d3) {\n return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);\n });\n var chars = '';\n for (var i = 0; i < bytes.length; i += 2) {\n var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);\n chars += (code >= 32 && code < 127 && code !== 60 && code !== 62 &&\n code !== 38) ? String.fromCharCode(code) :\n '&#x' + (0x10000 + code).toString(16).substring(1) + ';';\n }\n return '>' + chars;\n });\n}\n\nfunction Metadata(meta) {\n if (typeof meta === 'string') {\n // Ghostscript produces invalid metadata\n meta = fixMetadata(meta);\n\n var parser = new DOMParser();\n meta = parser.parseFromString(meta, 'application/xml');\n } else if (!(meta instanceof Document)) {\n throw new Error('Metadata: Invalid metadata object');\n }\n\n this.metaDocument = meta;\n this.metadata = Object.create(null);\n this.parse();\n}\n\nMetadata.prototype = {\n parse: function Metadata_parse() {\n var doc = this.metaDocument;\n var rdf = doc.documentElement;\n\n if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') { // Wrapped in \n rdf = rdf.firstChild;\n while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {\n rdf = rdf.nextSibling;\n }\n }\n\n var nodeName = (rdf) ? rdf.nodeName.toLowerCase() : null;\n if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {\n return;\n }\n\n var children = rdf.childNodes, desc, entry, name, i, ii, length, iLength;\n for (i = 0, length = children.length; i < length; i++) {\n desc = children[i];\n if (desc.nodeName.toLowerCase() !== 'rdf:description') {\n continue;\n }\n\n for (ii = 0, iLength = desc.childNodes.length; ii < iLength; ii++) {\n if (desc.childNodes[ii].nodeName.toLowerCase() !== '#text') {\n entry = desc.childNodes[ii];\n name = entry.nodeName.toLowerCase();\n this.metadata[name] = entry.textContent.trim();\n }\n }\n }\n },\n\n get: function Metadata_get(name) {\n return this.metadata[name] || null;\n },\n\n has: function Metadata_has(name) {\n return typeof this.metadata[name] !== 'undefined';\n },\n};\n\nexport {\n Metadata,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/metadata.js","/* Copyright 2014 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* eslint-disable no-multi-str */\n\nimport { getDefaultSetting } from './dom_utils';\nimport { shadow } from '../shared/util';\n\nvar WebGLUtils = (function WebGLUtilsClosure() {\n function loadShader(gl, code, shaderType) {\n var shader = gl.createShader(shaderType);\n gl.shaderSource(shader, code);\n gl.compileShader(shader);\n var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);\n if (!compiled) {\n var errorMsg = gl.getShaderInfoLog(shader);\n throw new Error('Error during shader compilation: ' + errorMsg);\n }\n return shader;\n }\n function createVertexShader(gl, code) {\n return loadShader(gl, code, gl.VERTEX_SHADER);\n }\n function createFragmentShader(gl, code) {\n return loadShader(gl, code, gl.FRAGMENT_SHADER);\n }\n function createProgram(gl, shaders) {\n var program = gl.createProgram();\n for (var i = 0, ii = shaders.length; i < ii; ++i) {\n gl.attachShader(program, shaders[i]);\n }\n gl.linkProgram(program);\n var linked = gl.getProgramParameter(program, gl.LINK_STATUS);\n if (!linked) {\n var errorMsg = gl.getProgramInfoLog(program);\n throw new Error('Error during program linking: ' + errorMsg);\n }\n return program;\n }\n function createTexture(gl, image, textureId) {\n gl.activeTexture(textureId);\n var texture = gl.createTexture();\n gl.bindTexture(gl.TEXTURE_2D, texture);\n\n // Set the parameters so we can render any size image.\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);\n\n // Upload the image into the texture.\n gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);\n return texture;\n }\n\n var currentGL, currentCanvas;\n function generateGL() {\n if (currentGL) {\n return;\n }\n\n // The temporary canvas is used in the WebGL context.\n currentCanvas = document.createElement('canvas');\n currentGL = currentCanvas.getContext('webgl',\n { premultipliedalpha: false, });\n }\n\n var smaskVertexShaderCode = '\\\n attribute vec2 a_position; \\\n attribute vec2 a_texCoord; \\\n \\\n uniform vec2 u_resolution; \\\n \\\n varying vec2 v_texCoord; \\\n \\\n void main() { \\\n vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \\\n gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \\\n \\\n v_texCoord = a_texCoord; \\\n } ';\n\n var smaskFragmentShaderCode = '\\\n precision mediump float; \\\n \\\n uniform vec4 u_backdrop; \\\n uniform int u_subtype; \\\n uniform sampler2D u_image; \\\n uniform sampler2D u_mask; \\\n \\\n varying vec2 v_texCoord; \\\n \\\n void main() { \\\n vec4 imageColor = texture2D(u_image, v_texCoord); \\\n vec4 maskColor = texture2D(u_mask, v_texCoord); \\\n if (u_backdrop.a > 0.0) { \\\n maskColor.rgb = maskColor.rgb * maskColor.a + \\\n u_backdrop.rgb * (1.0 - maskColor.a); \\\n } \\\n float lum; \\\n if (u_subtype == 0) { \\\n lum = maskColor.a; \\\n } else { \\\n lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \\\n maskColor.b * 0.11; \\\n } \\\n imageColor.a *= lum; \\\n imageColor.rgb *= imageColor.a; \\\n gl_FragColor = imageColor; \\\n } ';\n\n var smaskCache = null;\n\n function initSmaskGL() {\n var canvas, gl;\n\n generateGL();\n canvas = currentCanvas;\n currentCanvas = null;\n gl = currentGL;\n currentGL = null;\n\n // setup a GLSL program\n var vertexShader = createVertexShader(gl, smaskVertexShaderCode);\n var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);\n var program = createProgram(gl, [vertexShader, fragmentShader]);\n gl.useProgram(program);\n\n var cache = {};\n cache.gl = gl;\n cache.canvas = canvas;\n cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');\n cache.positionLocation = gl.getAttribLocation(program, 'a_position');\n cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');\n cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');\n\n var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');\n var texLayerLocation = gl.getUniformLocation(program, 'u_image');\n var texMaskLocation = gl.getUniformLocation(program, 'u_mask');\n\n // provide texture coordinates for the rectangle.\n var texCoordBuffer = gl.createBuffer();\n gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);\n gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([\n 0.0, 0.0,\n 1.0, 0.0,\n 0.0, 1.0,\n 0.0, 1.0,\n 1.0, 0.0,\n 1.0, 1.0]), gl.STATIC_DRAW);\n gl.enableVertexAttribArray(texCoordLocation);\n gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);\n\n gl.uniform1i(texLayerLocation, 0);\n gl.uniform1i(texMaskLocation, 1);\n\n smaskCache = cache;\n }\n\n function composeSMask(layer, mask, properties) {\n var width = layer.width, height = layer.height;\n\n if (!smaskCache) {\n initSmaskGL();\n }\n var cache = smaskCache, canvas = cache.canvas, gl = cache.gl;\n canvas.width = width;\n canvas.height = height;\n gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n gl.uniform2f(cache.resolutionLocation, width, height);\n\n if (properties.backdrop) {\n gl.uniform4f(cache.resolutionLocation, properties.backdrop[0],\n properties.backdrop[1], properties.backdrop[2], 1);\n } else {\n gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);\n }\n gl.uniform1i(cache.subtypeLocation,\n properties.subtype === 'Luminosity' ? 1 : 0);\n\n // Create a textures\n var texture = createTexture(gl, layer, gl.TEXTURE0);\n var maskTexture = createTexture(gl, mask, gl.TEXTURE1);\n\n\n // Create a buffer and put a single clipspace rectangle in\n // it (2 triangles)\n var buffer = gl.createBuffer();\n gl.bindBuffer(gl.ARRAY_BUFFER, buffer);\n gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([\n 0, 0,\n width, 0,\n 0, height,\n 0, height,\n width, 0,\n width, height]), gl.STATIC_DRAW);\n gl.enableVertexAttribArray(cache.positionLocation);\n gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);\n\n // draw\n gl.clearColor(0, 0, 0, 0);\n gl.enable(gl.BLEND);\n gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);\n gl.clear(gl.COLOR_BUFFER_BIT);\n\n gl.drawArrays(gl.TRIANGLES, 0, 6);\n\n gl.flush();\n\n gl.deleteTexture(texture);\n gl.deleteTexture(maskTexture);\n gl.deleteBuffer(buffer);\n\n return canvas;\n }\n\n var figuresVertexShaderCode = '\\\n attribute vec2 a_position; \\\n attribute vec3 a_color; \\\n \\\n uniform vec2 u_resolution; \\\n uniform vec2 u_scale; \\\n uniform vec2 u_offset; \\\n \\\n varying vec4 v_color; \\\n \\\n void main() { \\\n vec2 position = (a_position + u_offset) * u_scale; \\\n vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \\\n gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \\\n \\\n v_color = vec4(a_color / 255.0, 1.0); \\\n } ';\n\n var figuresFragmentShaderCode = '\\\n precision mediump float; \\\n \\\n varying vec4 v_color; \\\n \\\n void main() { \\\n gl_FragColor = v_color; \\\n } ';\n\n var figuresCache = null;\n\n function initFiguresGL() {\n var canvas, gl;\n\n generateGL();\n canvas = currentCanvas;\n currentCanvas = null;\n gl = currentGL;\n currentGL = null;\n\n // setup a GLSL program\n var vertexShader = createVertexShader(gl, figuresVertexShaderCode);\n var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);\n var program = createProgram(gl, [vertexShader, fragmentShader]);\n gl.useProgram(program);\n\n var cache = {};\n cache.gl = gl;\n cache.canvas = canvas;\n cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');\n cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');\n cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');\n cache.positionLocation = gl.getAttribLocation(program, 'a_position');\n cache.colorLocation = gl.getAttribLocation(program, 'a_color');\n\n figuresCache = cache;\n }\n\n function drawFigures(width, height, backgroundColor, figures, context) {\n if (!figuresCache) {\n initFiguresGL();\n }\n var cache = figuresCache, canvas = cache.canvas, gl = cache.gl;\n\n canvas.width = width;\n canvas.height = height;\n gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n gl.uniform2f(cache.resolutionLocation, width, height);\n\n // count triangle points\n var count = 0;\n var i, ii, rows;\n for (i = 0, ii = figures.length; i < ii; i++) {\n switch (figures[i].type) {\n case 'lattice':\n rows = (figures[i].coords.length / figures[i].verticesPerRow) | 0;\n count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;\n break;\n case 'triangles':\n count += figures[i].coords.length;\n break;\n }\n }\n // transfer data\n var coords = new Float32Array(count * 2);\n var colors = new Uint8Array(count * 3);\n var coordsMap = context.coords, colorsMap = context.colors;\n var pIndex = 0, cIndex = 0;\n for (i = 0, ii = figures.length; i < ii; i++) {\n var figure = figures[i], ps = figure.coords, cs = figure.colors;\n switch (figure.type) {\n case 'lattice':\n var cols = figure.verticesPerRow;\n rows = (ps.length / cols) | 0;\n for (var row = 1; row < rows; row++) {\n var offset = row * cols + 1;\n for (var col = 1; col < cols; col++, offset++) {\n coords[pIndex] = coordsMap[ps[offset - cols - 1]];\n coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];\n coords[pIndex + 2] = coordsMap[ps[offset - cols]];\n coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];\n coords[pIndex + 4] = coordsMap[ps[offset - 1]];\n coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];\n colors[cIndex] = colorsMap[cs[offset - cols - 1]];\n colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];\n colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];\n colors[cIndex + 3] = colorsMap[cs[offset - cols]];\n colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];\n colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];\n colors[cIndex + 6] = colorsMap[cs[offset - 1]];\n colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];\n colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];\n\n coords[pIndex + 6] = coords[pIndex + 2];\n coords[pIndex + 7] = coords[pIndex + 3];\n coords[pIndex + 8] = coords[pIndex + 4];\n coords[pIndex + 9] = coords[pIndex + 5];\n coords[pIndex + 10] = coordsMap[ps[offset]];\n coords[pIndex + 11] = coordsMap[ps[offset] + 1];\n colors[cIndex + 9] = colors[cIndex + 3];\n colors[cIndex + 10] = colors[cIndex + 4];\n colors[cIndex + 11] = colors[cIndex + 5];\n colors[cIndex + 12] = colors[cIndex + 6];\n colors[cIndex + 13] = colors[cIndex + 7];\n colors[cIndex + 14] = colors[cIndex + 8];\n colors[cIndex + 15] = colorsMap[cs[offset]];\n colors[cIndex + 16] = colorsMap[cs[offset] + 1];\n colors[cIndex + 17] = colorsMap[cs[offset] + 2];\n pIndex += 12;\n cIndex += 18;\n }\n }\n break;\n case 'triangles':\n for (var j = 0, jj = ps.length; j < jj; j++) {\n coords[pIndex] = coordsMap[ps[j]];\n coords[pIndex + 1] = coordsMap[ps[j] + 1];\n colors[cIndex] = colorsMap[cs[j]];\n colors[cIndex + 1] = colorsMap[cs[j] + 1];\n colors[cIndex + 2] = colorsMap[cs[j] + 2];\n pIndex += 2;\n cIndex += 3;\n }\n break;\n }\n }\n\n // draw\n if (backgroundColor) {\n gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255,\n backgroundColor[2] / 255, 1.0);\n } else {\n gl.clearColor(0, 0, 0, 0);\n }\n gl.clear(gl.COLOR_BUFFER_BIT);\n\n var coordsBuffer = gl.createBuffer();\n gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);\n gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);\n gl.enableVertexAttribArray(cache.positionLocation);\n gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);\n\n var colorsBuffer = gl.createBuffer();\n gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);\n gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);\n gl.enableVertexAttribArray(cache.colorLocation);\n gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false,\n 0, 0);\n\n gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);\n gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);\n\n gl.drawArrays(gl.TRIANGLES, 0, count);\n\n gl.flush();\n\n gl.deleteBuffer(coordsBuffer);\n gl.deleteBuffer(colorsBuffer);\n\n return canvas;\n }\n\n function cleanup() {\n if (smaskCache && smaskCache.canvas) {\n smaskCache.canvas.width = 0;\n smaskCache.canvas.height = 0;\n }\n if (figuresCache && figuresCache.canvas) {\n figuresCache.canvas.width = 0;\n figuresCache.canvas.height = 0;\n }\n smaskCache = null;\n figuresCache = null;\n }\n\n return {\n get isEnabled() {\n if (getDefaultSetting('disableWebGL')) {\n return false;\n }\n var enabled = false;\n try {\n generateGL();\n enabled = !!currentGL;\n } catch (e) { }\n return shadow(this, 'isEnabled', enabled);\n },\n composeSMask,\n drawFigures,\n clear: cleanup,\n };\n})();\n\nexport {\n WebGLUtils,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/webgl.js","/* Copyright 2015 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n _UnsupportedManager, getDocument, LoopbackPort, PDFDataRangeTransport,\n PDFWorker\n} from './api';\nimport {\n addLinkAttributes, CustomStyle, DEFAULT_LINK_REL, getFilenameFromUrl,\n isExternalLinkTargetSet, isValidUrl, LinkTarget\n} from './dom_utils';\nimport {\n createBlob, createObjectURL, createPromiseCapability, deprecated,\n getVerbosityLevel, globalScope, InvalidPDFException, isLittleEndian,\n MissingPDFException, OPS, PageViewport, PasswordException, PasswordResponses,\n removeNullCharacters, setVerbosityLevel, shadow, UnexpectedResponseException,\n UnknownErrorException, UNSUPPORTED_FEATURES, Util, VERBOSITY_LEVELS, warn\n} from '../shared/util';\nimport { AnnotationLayer } from './annotation_layer';\nimport { Metadata } from './metadata';\nimport { renderTextLayer } from './text_layer';\nimport { SVGGraphics } from './svg';\n\nvar isWorker = (typeof window === 'undefined');\n\n// The global PDFJS object is now deprecated and will not be supported in\n// the future. The members below are maintained for backward compatibility\n// and shall not be extended or modified. If the global.js is included as\n// a module, we will create a global PDFJS object instance or use existing.\nif (!globalScope.PDFJS) {\n globalScope.PDFJS = {};\n}\nvar PDFJS = globalScope.PDFJS;\n\nif (typeof PDFJSDev !== 'undefined') {\n PDFJS.version = PDFJSDev.eval('BUNDLE_VERSION');\n PDFJS.build = PDFJSDev.eval('BUNDLE_BUILD');\n}\n\nPDFJS.pdfBug = false;\n\nif (PDFJS.verbosity !== undefined) {\n setVerbosityLevel(PDFJS.verbosity);\n}\ndelete PDFJS.verbosity;\nObject.defineProperty(PDFJS, 'verbosity', {\n get() {\n return getVerbosityLevel();\n },\n set(level) {\n setVerbosityLevel(level);\n },\n enumerable: true,\n configurable: true,\n});\n\nPDFJS.VERBOSITY_LEVELS = VERBOSITY_LEVELS;\nPDFJS.OPS = OPS;\nPDFJS.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;\nPDFJS.isValidUrl = isValidUrl;\nPDFJS.shadow = shadow;\nPDFJS.createBlob = createBlob;\nPDFJS.createObjectURL = function PDFJS_createObjectURL(data, contentType) {\n return createObjectURL(data, contentType, PDFJS.disableCreateObjectURL);\n};\nObject.defineProperty(PDFJS, 'isLittleEndian', {\n configurable: true,\n get: function PDFJS_isLittleEndian() {\n return shadow(PDFJS, 'isLittleEndian', isLittleEndian());\n },\n});\nPDFJS.removeNullCharacters = removeNullCharacters;\nPDFJS.PasswordResponses = PasswordResponses;\nPDFJS.PasswordException = PasswordException;\nPDFJS.UnknownErrorException = UnknownErrorException;\nPDFJS.InvalidPDFException = InvalidPDFException;\nPDFJS.MissingPDFException = MissingPDFException;\nPDFJS.UnexpectedResponseException = UnexpectedResponseException;\nPDFJS.Util = Util;\nPDFJS.PageViewport = PageViewport;\nPDFJS.createPromiseCapability = createPromiseCapability;\n\n/**\n * The maximum allowed image size in total pixels e.g. width * height. Images\n * above this value will not be drawn. Use -1 for no limit.\n * @var {number}\n */\nPDFJS.maxImageSize = (PDFJS.maxImageSize === undefined ?\n -1 : PDFJS.maxImageSize);\n\n/**\n * The url of where the predefined Adobe CMaps are located. Include trailing\n * slash.\n * @var {string}\n */\nPDFJS.cMapUrl = (PDFJS.cMapUrl === undefined ? null : PDFJS.cMapUrl);\n\n/**\n * Specifies if CMaps are binary packed.\n * @var {boolean}\n */\nPDFJS.cMapPacked = PDFJS.cMapPacked === undefined ? false : PDFJS.cMapPacked;\n\n/**\n * By default fonts are converted to OpenType fonts and loaded via font face\n * rules. If disabled, the font will be rendered using a built in font\n * renderer that constructs the glyphs with primitive path commands.\n * @var {boolean}\n */\nPDFJS.disableFontFace = (PDFJS.disableFontFace === undefined ?\n false : PDFJS.disableFontFace);\n\n/**\n * Path for image resources, mainly for annotation icons. Include trailing\n * slash.\n * @var {string}\n */\nPDFJS.imageResourcesPath = (PDFJS.imageResourcesPath === undefined ?\n '' : PDFJS.imageResourcesPath);\n\n/**\n * Disable the web worker and run all code on the main thread. This will\n * happen automatically if the browser doesn't support workers or sending\n * typed arrays to workers.\n * @var {boolean}\n */\nPDFJS.disableWorker = (PDFJS.disableWorker === undefined ?\n false : PDFJS.disableWorker);\n\n/**\n * Path and filename of the worker file. Required when the worker is enabled\n * in development mode. If unspecified in the production build, the worker\n * will be loaded based on the location of the pdf.js file. It is recommended\n * that the workerSrc is set in a custom application to prevent issues caused\n * by third-party frameworks and libraries.\n * @var {string}\n */\nPDFJS.workerSrc = (PDFJS.workerSrc === undefined ? null : PDFJS.workerSrc);\n\n/**\n * Defines global port for worker process. Overrides workerSrc and\n * disableWorker setting.\n */\nPDFJS.workerPort = (PDFJS.workerPort === undefined ? null : PDFJS.workerPort);\n\n/**\n * Disable range request loading of PDF files. When enabled and if the server\n * supports partial content requests then the PDF will be fetched in chunks.\n * Enabled (false) by default.\n * @var {boolean}\n */\nPDFJS.disableRange = (PDFJS.disableRange === undefined ?\n false : PDFJS.disableRange);\n\n/**\n * Disable streaming of PDF file data. By default PDF.js attempts to load PDF\n * in chunks. This default behavior can be disabled.\n * @var {boolean}\n */\nPDFJS.disableStream = (PDFJS.disableStream === undefined ?\n false : PDFJS.disableStream);\n\n/**\n * Disable pre-fetching of PDF file data. When range requests are enabled\n * PDF.js will automatically keep fetching more data even if it isn't needed\n * to display the current page. This default behavior can be disabled.\n *\n * NOTE: It is also necessary to disable streaming, see above,\n * in order for disabling of pre-fetching to work correctly.\n * @var {boolean}\n */\nPDFJS.disableAutoFetch = (PDFJS.disableAutoFetch === undefined ?\n false : PDFJS.disableAutoFetch);\n\n/**\n * Enables special hooks for debugging PDF.js.\n * @var {boolean}\n */\nPDFJS.pdfBug = (PDFJS.pdfBug === undefined ? false : PDFJS.pdfBug);\n\n/**\n * Enables transfer usage in postMessage for ArrayBuffers.\n * @var {boolean}\n */\nPDFJS.postMessageTransfers = (PDFJS.postMessageTransfers === undefined ?\n true : PDFJS.postMessageTransfers);\n\n/**\n * Disables URL.createObjectURL usage.\n * @var {boolean}\n */\nPDFJS.disableCreateObjectURL = (PDFJS.disableCreateObjectURL === undefined ?\n false : PDFJS.disableCreateObjectURL);\n\n/**\n * Disables WebGL usage.\n * @var {boolean}\n */\nPDFJS.disableWebGL = (PDFJS.disableWebGL === undefined ?\n true : PDFJS.disableWebGL);\n\n/**\n * Specifies the |target| attribute for external links.\n * The constants from PDFJS.LinkTarget should be used:\n * - NONE [default]\n * - SELF\n * - BLANK\n * - PARENT\n * - TOP\n * @var {number}\n */\nPDFJS.externalLinkTarget = (PDFJS.externalLinkTarget === undefined ?\n LinkTarget.NONE : PDFJS.externalLinkTarget);\n\n/**\n * Specifies the |rel| attribute for external links. Defaults to stripping\n * the referrer.\n * @var {string}\n */\nPDFJS.externalLinkRel = (PDFJS.externalLinkRel === undefined ?\n DEFAULT_LINK_REL : PDFJS.externalLinkRel);\n\n/**\n * Determines if we can eval strings as JS. Primarily used to improve\n * performance for font rendering.\n * @var {boolean}\n */\nPDFJS.isEvalSupported = (PDFJS.isEvalSupported === undefined ?\n true : PDFJS.isEvalSupported);\n\n/**\n * Opt-in to backwards incompatible API changes. NOTE:\n * If the `PDFJS_NEXT` build flag is set, it will override this setting.\n * @var {boolean}\n */\nPDFJS.pdfjsNext = (PDFJS.pdfjsNext === undefined) ? false : PDFJS.pdfjsNext;\n\nif (typeof PDFJSDev === 'undefined' || !PDFJSDev.test('MOZCENTRAL')) {\n var savedOpenExternalLinksInNewWindow = PDFJS.openExternalLinksInNewWindow;\n delete PDFJS.openExternalLinksInNewWindow;\n Object.defineProperty(PDFJS, 'openExternalLinksInNewWindow', {\n get() {\n return PDFJS.externalLinkTarget === LinkTarget.BLANK;\n },\n set(value) {\n if (value) {\n deprecated('PDFJS.openExternalLinksInNewWindow, please use ' +\n '\"PDFJS.externalLinkTarget = PDFJS.LinkTarget.BLANK\" instead.');\n }\n if (PDFJS.externalLinkTarget !== LinkTarget.NONE) {\n warn('PDFJS.externalLinkTarget is already initialized');\n return;\n }\n PDFJS.externalLinkTarget = value ? LinkTarget.BLANK : LinkTarget.NONE;\n },\n enumerable: true,\n configurable: true,\n });\n if (savedOpenExternalLinksInNewWindow) {\n /**\n * (Deprecated) Opens external links in a new window if enabled.\n * The default behavior opens external links in the PDF.js window.\n *\n * NOTE: This property has been deprecated, please use\n * `PDFJS.externalLinkTarget = PDFJS.LinkTarget.BLANK` instead.\n * @var {boolean}\n */\n PDFJS.openExternalLinksInNewWindow = savedOpenExternalLinksInNewWindow;\n }\n}\n\nPDFJS.getDocument = getDocument;\nPDFJS.LoopbackPort = LoopbackPort;\nPDFJS.PDFDataRangeTransport = PDFDataRangeTransport;\nPDFJS.PDFWorker = PDFWorker;\n\nPDFJS.hasCanvasTypedArrays = true; // compatibility.js ensures this invariant\nPDFJS.CustomStyle = CustomStyle;\nPDFJS.LinkTarget = LinkTarget;\nPDFJS.addLinkAttributes = addLinkAttributes;\nPDFJS.getFilenameFromUrl = getFilenameFromUrl;\nPDFJS.isExternalLinkTargetSet = isExternalLinkTargetSet;\n\nPDFJS.AnnotationLayer = AnnotationLayer;\n\nPDFJS.renderTextLayer = renderTextLayer;\n\nPDFJS.Metadata = Metadata;\n\nPDFJS.SVGGraphics = SVGGraphics;\n\nPDFJS.UnsupportedManager = _UnsupportedManager;\n\nexport {\n globalScope,\n isWorker,\n PDFJS,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/global.js","/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n assert, createPromiseCapability, globalScope, isInt, MissingPDFException,\n UnexpectedResponseException\n} from '../shared/util';\nimport { setPDFNetworkStreamClass } from './api';\n\nif (typeof PDFJSDev !== 'undefined' && PDFJSDev.test('FIREFOX || MOZCENTRAL')) {\n throw new Error('Module \"./network\" shall not ' +\n 'be used with FIREFOX or MOZCENTRAL build.');\n}\n\nvar OK_RESPONSE = 200;\nvar PARTIAL_CONTENT_RESPONSE = 206;\n\nfunction NetworkManager(url, args) {\n this.url = url;\n args = args || {};\n this.isHttp = /^https?:/i.test(url);\n this.httpHeaders = (this.isHttp && args.httpHeaders) || {};\n this.withCredentials = args.withCredentials || false;\n this.getXhr = args.getXhr ||\n function NetworkManager_getXhr() {\n return new XMLHttpRequest();\n };\n\n this.currXhrId = 0;\n this.pendingRequests = Object.create(null);\n this.loadedRequests = Object.create(null);\n}\n\nfunction getArrayBuffer(xhr) {\n var data = xhr.response;\n if (typeof data !== 'string') {\n return data;\n }\n var length = data.length;\n var array = new Uint8Array(length);\n for (var i = 0; i < length; i++) {\n array[i] = data.charCodeAt(i) & 0xFF;\n }\n return array.buffer;\n}\n\nvar supportsMozChunked =\n typeof PDFJSDev !== 'undefined' && PDFJSDev.test('CHROME') ? false :\n (function supportsMozChunkedClosure() {\n try {\n var x = new XMLHttpRequest();\n // Firefox 37- required .open() to be called before setting responseType.\n // https://bugzilla.mozilla.org/show_bug.cgi?id=707484\n // Even though the URL is not visited, .open() could fail if the URL is\n // blocked, e.g. via the connect-src CSP directive or the NoScript addon.\n // When this error occurs, this feature detection method will mistakenly\n // report that moz-chunked-arraybuffer is not supported in Firefox 37-.\n x.open('GET', globalScope.location.href);\n x.responseType = 'moz-chunked-arraybuffer';\n return x.responseType === 'moz-chunked-arraybuffer';\n } catch (e) {\n return false;\n }\n})();\n\nNetworkManager.prototype = {\n requestRange: function NetworkManager_requestRange(begin, end, listeners) {\n var args = {\n begin,\n end,\n };\n for (var prop in listeners) {\n args[prop] = listeners[prop];\n }\n return this.request(args);\n },\n\n requestFull: function NetworkManager_requestFull(listeners) {\n return this.request(listeners);\n },\n\n request: function NetworkManager_request(args) {\n var xhr = this.getXhr();\n var xhrId = this.currXhrId++;\n var pendingRequest = this.pendingRequests[xhrId] = {\n xhr,\n };\n\n xhr.open('GET', this.url);\n xhr.withCredentials = this.withCredentials;\n for (var property in this.httpHeaders) {\n var value = this.httpHeaders[property];\n if (typeof value === 'undefined') {\n continue;\n }\n xhr.setRequestHeader(property, value);\n }\n if (this.isHttp && 'begin' in args && 'end' in args) {\n var rangeStr = args.begin + '-' + (args.end - 1);\n xhr.setRequestHeader('Range', 'bytes=' + rangeStr);\n pendingRequest.expectedStatus = 206;\n } else {\n pendingRequest.expectedStatus = 200;\n }\n\n var useMozChunkedLoading = supportsMozChunked && !!args.onProgressiveData;\n if (useMozChunkedLoading) {\n xhr.responseType = 'moz-chunked-arraybuffer';\n pendingRequest.onProgressiveData = args.onProgressiveData;\n pendingRequest.mozChunked = true;\n } else {\n xhr.responseType = 'arraybuffer';\n }\n\n if (args.onError) {\n xhr.onerror = function(evt) {\n args.onError(xhr.status);\n };\n }\n xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);\n xhr.onprogress = this.onProgress.bind(this, xhrId);\n\n pendingRequest.onHeadersReceived = args.onHeadersReceived;\n pendingRequest.onDone = args.onDone;\n pendingRequest.onError = args.onError;\n pendingRequest.onProgress = args.onProgress;\n\n xhr.send(null);\n\n return xhrId;\n },\n\n onProgress: function NetworkManager_onProgress(xhrId, evt) {\n var pendingRequest = this.pendingRequests[xhrId];\n if (!pendingRequest) {\n // Maybe abortRequest was called...\n return;\n }\n\n if (pendingRequest.mozChunked) {\n var chunk = getArrayBuffer(pendingRequest.xhr);\n pendingRequest.onProgressiveData(chunk);\n }\n\n var onProgress = pendingRequest.onProgress;\n if (onProgress) {\n onProgress(evt);\n }\n },\n\n onStateChange: function NetworkManager_onStateChange(xhrId, evt) {\n var pendingRequest = this.pendingRequests[xhrId];\n if (!pendingRequest) {\n // Maybe abortRequest was called...\n return;\n }\n\n var xhr = pendingRequest.xhr;\n if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {\n pendingRequest.onHeadersReceived();\n delete pendingRequest.onHeadersReceived;\n }\n\n if (xhr.readyState !== 4) {\n return;\n }\n\n if (!(xhrId in this.pendingRequests)) {\n // The XHR request might have been aborted in onHeadersReceived()\n // callback, in which case we should abort request\n return;\n }\n\n delete this.pendingRequests[xhrId];\n\n // success status == 0 can be on ftp, file and other protocols\n if (xhr.status === 0 && this.isHttp) {\n if (pendingRequest.onError) {\n pendingRequest.onError(xhr.status);\n }\n return;\n }\n var xhrStatus = xhr.status || OK_RESPONSE;\n\n // From http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.2:\n // \"A server MAY ignore the Range header\". This means it's possible to\n // get a 200 rather than a 206 response from a range request.\n var ok_response_on_range_request =\n xhrStatus === OK_RESPONSE &&\n pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;\n\n if (!ok_response_on_range_request &&\n xhrStatus !== pendingRequest.expectedStatus) {\n if (pendingRequest.onError) {\n pendingRequest.onError(xhr.status);\n }\n return;\n }\n\n this.loadedRequests[xhrId] = true;\n\n var chunk = getArrayBuffer(xhr);\n if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {\n var rangeHeader = xhr.getResponseHeader('Content-Range');\n var matches = /bytes (\\d+)-(\\d+)\\/(\\d+)/.exec(rangeHeader);\n var begin = parseInt(matches[1], 10);\n pendingRequest.onDone({\n begin,\n chunk,\n });\n } else if (pendingRequest.onProgressiveData) {\n pendingRequest.onDone(null);\n } else if (chunk) {\n pendingRequest.onDone({\n begin: 0,\n chunk,\n });\n } else if (pendingRequest.onError) {\n pendingRequest.onError(xhr.status);\n }\n },\n\n hasPendingRequests: function NetworkManager_hasPendingRequests() {\n for (var xhrId in this.pendingRequests) {\n return true;\n }\n return false;\n },\n\n getRequestXhr: function NetworkManager_getXhr(xhrId) {\n return this.pendingRequests[xhrId].xhr;\n },\n\n isStreamingRequest: function NetworkManager_isStreamingRequest(xhrId) {\n return !!(this.pendingRequests[xhrId].onProgressiveData);\n },\n\n isPendingRequest: function NetworkManager_isPendingRequest(xhrId) {\n return xhrId in this.pendingRequests;\n },\n\n isLoadedRequest: function NetworkManager_isLoadedRequest(xhrId) {\n return xhrId in this.loadedRequests;\n },\n\n abortAllRequests: function NetworkManager_abortAllRequests() {\n for (var xhrId in this.pendingRequests) {\n this.abortRequest(xhrId | 0);\n }\n },\n\n abortRequest: function NetworkManager_abortRequest(xhrId) {\n var xhr = this.pendingRequests[xhrId].xhr;\n delete this.pendingRequests[xhrId];\n xhr.abort();\n },\n};\n\n/** @implements {IPDFStream} */\nfunction PDFNetworkStream(options) {\n this._options = options;\n var source = options.source;\n this._manager = new NetworkManager(source.url, {\n httpHeaders: source.httpHeaders,\n withCredentials: source.withCredentials,\n });\n this._rangeChunkSize = source.rangeChunkSize;\n this._fullRequestReader = null;\n this._rangeRequestReaders = [];\n}\n\nPDFNetworkStream.prototype = {\n _onRangeRequestReaderClosed:\n function PDFNetworkStream_onRangeRequestReaderClosed(reader) {\n var i = this._rangeRequestReaders.indexOf(reader);\n if (i >= 0) {\n this._rangeRequestReaders.splice(i, 1);\n }\n },\n\n getFullReader: function PDFNetworkStream_getFullReader() {\n assert(!this._fullRequestReader);\n this._fullRequestReader =\n new PDFNetworkStreamFullRequestReader(this._manager, this._options);\n return this._fullRequestReader;\n },\n\n getRangeReader: function PDFNetworkStream_getRangeReader(begin, end) {\n var reader = new PDFNetworkStreamRangeRequestReader(this._manager,\n begin, end);\n reader.onClosed = this._onRangeRequestReaderClosed.bind(this);\n this._rangeRequestReaders.push(reader);\n return reader;\n },\n\n cancelAllRequests: function PDFNetworkStream_cancelAllRequests(reason) {\n if (this._fullRequestReader) {\n this._fullRequestReader.cancel(reason);\n }\n var readers = this._rangeRequestReaders.slice(0);\n readers.forEach(function (reader) {\n reader.cancel(reason);\n });\n },\n};\n\n/** @implements {IPDFStreamReader} */\nfunction PDFNetworkStreamFullRequestReader(manager, options) {\n this._manager = manager;\n\n var source = options.source;\n var args = {\n onHeadersReceived: this._onHeadersReceived.bind(this),\n onProgressiveData: source.disableStream ? null :\n this._onProgressiveData.bind(this),\n onDone: this._onDone.bind(this),\n onError: this._onError.bind(this),\n onProgress: this._onProgress.bind(this),\n };\n this._url = source.url;\n this._fullRequestId = manager.requestFull(args);\n this._headersReceivedCapability = createPromiseCapability();\n this._disableRange = options.disableRange || false;\n this._contentLength = source.length; // optional\n this._rangeChunkSize = source.rangeChunkSize;\n if (!this._rangeChunkSize && !this._disableRange) {\n this._disableRange = true;\n }\n\n this._isStreamingSupported = false;\n this._isRangeSupported = false;\n\n this._cachedChunks = [];\n this._requests = [];\n this._done = false;\n this._storedError = undefined;\n\n this.onProgress = null;\n}\n\nPDFNetworkStreamFullRequestReader.prototype = {\n _validateRangeRequestCapabilities: function\n PDFNetworkStreamFullRequestReader_validateRangeRequestCapabilities() {\n\n if (this._disableRange) {\n return false;\n }\n\n var networkManager = this._manager;\n if (!networkManager.isHttp) {\n return false;\n }\n var fullRequestXhrId = this._fullRequestId;\n var fullRequestXhr = networkManager.getRequestXhr(fullRequestXhrId);\n if (fullRequestXhr.getResponseHeader('Accept-Ranges') !== 'bytes') {\n return false;\n }\n\n var contentEncoding =\n fullRequestXhr.getResponseHeader('Content-Encoding') || 'identity';\n if (contentEncoding !== 'identity') {\n return false;\n }\n\n var length = fullRequestXhr.getResponseHeader('Content-Length');\n length = parseInt(length, 10);\n if (!isInt(length)) {\n return false;\n }\n\n this._contentLength = length; // setting right content length\n\n if (length <= 2 * this._rangeChunkSize) {\n // The file size is smaller than the size of two chunks, so it does\n // not make any sense to abort the request and retry with a range\n // request.\n return false;\n }\n\n return true;\n },\n\n _onHeadersReceived:\n function PDFNetworkStreamFullRequestReader_onHeadersReceived() {\n\n if (this._validateRangeRequestCapabilities()) {\n this._isRangeSupported = true;\n }\n\n var networkManager = this._manager;\n var fullRequestXhrId = this._fullRequestId;\n if (networkManager.isStreamingRequest(fullRequestXhrId)) {\n // We can continue fetching when progressive loading is enabled,\n // and we don't need the autoFetch feature.\n this._isStreamingSupported = true;\n } else if (this._isRangeSupported) {\n // NOTE: by cancelling the full request, and then issuing range\n // requests, there will be an issue for sites where you can only\n // request the pdf once. However, if this is the case, then the\n // server should not be returning that it can support range\n // requests.\n networkManager.abortRequest(fullRequestXhrId);\n }\n\n this._headersReceivedCapability.resolve();\n },\n\n _onProgressiveData:\n function PDFNetworkStreamFullRequestReader_onProgressiveData(chunk) {\n if (this._requests.length > 0) {\n var requestCapability = this._requests.shift();\n requestCapability.resolve({ value: chunk, done: false, });\n } else {\n this._cachedChunks.push(chunk);\n }\n },\n\n _onDone: function PDFNetworkStreamFullRequestReader_onDone(args) {\n if (args) {\n this._onProgressiveData(args.chunk);\n }\n this._done = true;\n if (this._cachedChunks.length > 0) {\n return;\n }\n this._requests.forEach(function (requestCapability) {\n requestCapability.resolve({ value: undefined, done: true, });\n });\n this._requests = [];\n },\n\n _onError: function PDFNetworkStreamFullRequestReader_onError(status) {\n var url = this._url;\n var exception;\n if (status === 404 || status === 0 && /^file:/.test(url)) {\n exception = new MissingPDFException('Missing PDF \"' + url + '\".');\n } else {\n exception = new UnexpectedResponseException(\n 'Unexpected server response (' + status +\n ') while retrieving PDF \"' + url + '\".', status);\n }\n this._storedError = exception;\n this._headersReceivedCapability.reject(exception);\n this._requests.forEach(function (requestCapability) {\n requestCapability.reject(exception);\n });\n this._requests = [];\n this._cachedChunks = [];\n },\n\n _onProgress: function PDFNetworkStreamFullRequestReader_onProgress(data) {\n if (this.onProgress) {\n this.onProgress({\n loaded: data.loaded,\n total: data.lengthComputable ? data.total : this._contentLength,\n });\n }\n },\n\n get isRangeSupported() {\n return this._isRangeSupported;\n },\n\n get isStreamingSupported() {\n return this._isStreamingSupported;\n },\n\n get contentLength() {\n return this._contentLength;\n },\n\n get headersReady() {\n return this._headersReceivedCapability.promise;\n },\n\n read: function PDFNetworkStreamFullRequestReader_read() {\n if (this._storedError) {\n return Promise.reject(this._storedError);\n }\n if (this._cachedChunks.length > 0) {\n var chunk = this._cachedChunks.shift();\n return Promise.resolve({ value: chunk, done: false, });\n }\n if (this._done) {\n return Promise.resolve({ value: undefined, done: true, });\n }\n var requestCapability = createPromiseCapability();\n this._requests.push(requestCapability);\n return requestCapability.promise;\n },\n\n cancel: function PDFNetworkStreamFullRequestReader_cancel(reason) {\n this._done = true;\n this._headersReceivedCapability.reject(reason);\n this._requests.forEach(function (requestCapability) {\n requestCapability.resolve({ value: undefined, done: true, });\n });\n this._requests = [];\n if (this._manager.isPendingRequest(this._fullRequestId)) {\n this._manager.abortRequest(this._fullRequestId);\n }\n this._fullRequestReader = null;\n },\n};\n\n/** @implements {IPDFStreamRangeReader} */\nfunction PDFNetworkStreamRangeRequestReader(manager, begin, end) {\n this._manager = manager;\n var args = {\n onDone: this._onDone.bind(this),\n onProgress: this._onProgress.bind(this),\n };\n this._requestId = manager.requestRange(begin, end, args);\n this._requests = [];\n this._queuedChunk = null;\n this._done = false;\n\n this.onProgress = null;\n this.onClosed = null;\n}\n\nPDFNetworkStreamRangeRequestReader.prototype = {\n _close: function PDFNetworkStreamRangeRequestReader_close() {\n if (this.onClosed) {\n this.onClosed(this);\n }\n },\n\n _onDone: function PDFNetworkStreamRangeRequestReader_onDone(data) {\n var chunk = data.chunk;\n if (this._requests.length > 0) {\n var requestCapability = this._requests.shift();\n requestCapability.resolve({ value: chunk, done: false, });\n } else {\n this._queuedChunk = chunk;\n }\n this._done = true;\n this._requests.forEach(function (requestCapability) {\n requestCapability.resolve({ value: undefined, done: true, });\n });\n this._requests = [];\n this._close();\n },\n\n _onProgress: function PDFNetworkStreamRangeRequestReader_onProgress(evt) {\n if (!this.isStreamingSupported && this.onProgress) {\n this.onProgress({\n loaded: evt.loaded,\n });\n }\n },\n\n get isStreamingSupported() {\n return false; // TODO allow progressive range bytes loading\n },\n\n read: function PDFNetworkStreamRangeRequestReader_read() {\n if (this._queuedChunk !== null) {\n var chunk = this._queuedChunk;\n this._queuedChunk = null;\n return Promise.resolve({ value: chunk, done: false, });\n }\n if (this._done) {\n return Promise.resolve({ value: undefined, done: true, });\n }\n var requestCapability = createPromiseCapability();\n this._requests.push(requestCapability);\n return requestCapability.promise;\n },\n\n cancel: function PDFNetworkStreamRangeRequestReader_cancel(reason) {\n this._done = true;\n this._requests.forEach(function (requestCapability) {\n requestCapability.resolve({ value: undefined, done: true, });\n });\n this._requests = [];\n if (this._manager.isPendingRequest(this._requestId)) {\n this._manager.abortRequest(this._requestId);\n }\n this._close();\n },\n};\n\nsetPDFNetworkStreamClass(PDFNetworkStream);\n\nexport {\n PDFNetworkStream,\n NetworkManager,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/network.js","/*\n * To the extent possible under law, the authors have dedicated all copyright\n * and related and neighboring rights to this software to the public\n * domain worldwide. This software is distributed without any warranty.\n *\n * You should have received a copy of the CC0 Public Domain Dedication along\n * with this software. If not, see https://creativecommons.org/publicdomain/zero/1.0/.\n */\n\n(function(e, a) { for(var i in a) e[i] = a[i]; }(exports, /******/ (function(modules) { // webpackBootstrap\n/******/ // The module cache\n/******/ var installedModules = {};\n/******/\n/******/ // The require function\n/******/ function __w_pdfjs_require__(moduleId) {\n/******/\n/******/ // Check if module is in cache\n/******/ if(installedModules[moduleId])\n/******/ return installedModules[moduleId].exports;\n/******/\n/******/ // Create a new module (and put it into the cache)\n/******/ var module = installedModules[moduleId] = {\n/******/ i: moduleId,\n/******/ l: false,\n/******/ exports: {}\n/******/ };\n/******/\n/******/ // Execute the module function\n/******/ modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);\n/******/\n/******/ // Flag the module as loaded\n/******/ module.l = true;\n/******/\n/******/ // Return the exports of the module\n/******/ return module.exports;\n/******/ }\n/******/\n/******/\n/******/ // expose the modules object (__webpack_modules__)\n/******/ __w_pdfjs_require__.m = modules;\n/******/\n/******/ // expose the module cache\n/******/ __w_pdfjs_require__.c = installedModules;\n/******/\n/******/ // identity function for calling harmony imports with the correct context\n/******/ __w_pdfjs_require__.i = function(value) { return value; };\n/******/\n/******/ // define getter function for harmony exports\n/******/ __w_pdfjs_require__.d = function(exports, name, getter) {\n/******/ if(!__w_pdfjs_require__.o(exports, name)) {\n/******/ Object.defineProperty(exports, name, {\n/******/ configurable: false,\n/******/ enumerable: true,\n/******/ get: getter\n/******/ });\n/******/ }\n/******/ };\n/******/\n/******/ // getDefaultExport function for compatibility with non-harmony modules\n/******/ __w_pdfjs_require__.n = function(module) {\n/******/ var getter = module && module.__esModule ?\n/******/ function getDefault() { return module['default']; } :\n/******/ function getModuleExports() { return module; };\n/******/ __w_pdfjs_require__.d(getter, 'a', getter);\n/******/ return getter;\n/******/ };\n/******/\n/******/ // Object.prototype.hasOwnProperty.call\n/******/ __w_pdfjs_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ // __webpack_public_path__\n/******/ __w_pdfjs_require__.p = \"\";\n/******/\n/******/ // Load entry module and return exports\n/******/ return __w_pdfjs_require__(__w_pdfjs_require__.s = 7);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _require = __w_pdfjs_require__(1),\n assert = _require.assert;\n\nfunction IsPropertyKey(argument) {\n return typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';\n}\n\nexports.typeIsObject = function (x) {\n return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x !== null || typeof x === 'function';\n};\n\nexports.createDataProperty = function (o, p, v) {\n assert(exports.typeIsObject(o));\n Object.defineProperty(o, p, { value: v, writable: true, enumerable: true, configurable: true });\n};\n\nexports.createArrayFromList = function (elements) {\n // We use arrays to represent lists, so this is basically a no-op.\n // Do a slice though just in case we happen to depend on the unique-ness.\n return elements.slice();\n};\n\nexports.ArrayBufferCopy = function (dest, destOffset, src, srcOffset, n) {\n new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);\n};\n\nexports.CreateIterResultObject = function (value, done) {\n assert(typeof done === 'boolean');\n var obj = {};\n Object.defineProperty(obj, 'value', { value: value, enumerable: true, writable: true, configurable: true });\n Object.defineProperty(obj, 'done', { value: done, enumerable: true, writable: true, configurable: true });\n return obj;\n};\n\nexports.IsFiniteNonNegativeNumber = function (v) {\n if (Number.isNaN(v)) {\n return false;\n }\n if (v === Infinity) {\n return false;\n }\n if (v < 0) {\n return false;\n }\n\n return true;\n};\n\nfunction Call(F, V, args) {\n if (typeof F !== 'function') {\n throw new TypeError('Argument is not a function');\n }\n\n return Function.prototype.apply.call(F, V, args);\n}\n\nexports.InvokeOrNoop = function (O, P, args) {\n assert(O !== undefined);\n assert(IsPropertyKey(P));\n assert(Array.isArray(args));\n\n var method = O[P];\n if (method === undefined) {\n return undefined;\n }\n\n return Call(method, O, args);\n};\n\nexports.PromiseInvokeOrNoop = function (O, P, args) {\n assert(O !== undefined);\n assert(IsPropertyKey(P));\n assert(Array.isArray(args));\n try {\n return Promise.resolve(exports.InvokeOrNoop(O, P, args));\n } catch (returnValueE) {\n return Promise.reject(returnValueE);\n }\n};\n\nexports.PromiseInvokeOrPerformFallback = function (O, P, args, F, argsF) {\n assert(O !== undefined);\n assert(IsPropertyKey(P));\n assert(Array.isArray(args));\n assert(Array.isArray(argsF));\n\n var method = void 0;\n try {\n method = O[P];\n } catch (methodE) {\n return Promise.reject(methodE);\n }\n\n if (method === undefined) {\n return F.apply(null, argsF);\n }\n\n try {\n return Promise.resolve(Call(method, O, args));\n } catch (e) {\n return Promise.reject(e);\n }\n};\n\n// Not implemented correctly\nexports.TransferArrayBuffer = function (O) {\n return O.slice();\n};\n\nexports.ValidateAndNormalizeHighWaterMark = function (highWaterMark) {\n highWaterMark = Number(highWaterMark);\n if (Number.isNaN(highWaterMark) || highWaterMark < 0) {\n throw new RangeError('highWaterMark property of a queuing strategy must be non-negative and non-NaN');\n }\n\n return highWaterMark;\n};\n\nexports.ValidateAndNormalizeQueuingStrategy = function (size, highWaterMark) {\n if (size !== undefined && typeof size !== 'function') {\n throw new TypeError('size property of a queuing strategy must be a function');\n }\n\n highWaterMark = exports.ValidateAndNormalizeHighWaterMark(highWaterMark);\n\n return { size: size, highWaterMark: highWaterMark };\n};\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nfunction rethrowAssertionErrorRejection(e) {\n // Used throughout the reference implementation, as `.catch(rethrowAssertionErrorRejection)`, to ensure any errors\n // get shown. There are places in the spec where we do promise transformations and purposefully ignore or don't\n // expect any errors, but assertion errors are always problematic.\n if (e && e.constructor === AssertionError) {\n setTimeout(function () {\n throw e;\n }, 0);\n }\n};\n\nfunction AssertionError(message) {\n this.name = 'AssertionError';\n this.message = message || '';\n this.stack = new Error().stack;\n}\nAssertionError.prototype = Object.create(Error.prototype);\nAssertionError.prototype.constructor = AssertionError;\n\nfunction assert(value, message) {\n if (!value) {\n throw new AssertionError(message);\n }\n}\n\nmodule.exports = {\n rethrowAssertionErrorRejection: rethrowAssertionErrorRejection,\n AssertionError: AssertionError,\n assert: assert\n};\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar _require = __w_pdfjs_require__(0),\n InvokeOrNoop = _require.InvokeOrNoop,\n PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,\n ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,\n typeIsObject = _require.typeIsObject;\n\nvar _require2 = __w_pdfjs_require__(1),\n assert = _require2.assert,\n rethrowAssertionErrorRejection = _require2.rethrowAssertionErrorRejection;\n\nvar _require3 = __w_pdfjs_require__(3),\n DequeueValue = _require3.DequeueValue,\n EnqueueValueWithSize = _require3.EnqueueValueWithSize,\n PeekQueueValue = _require3.PeekQueueValue,\n ResetQueue = _require3.ResetQueue;\n\nvar WritableStream = function () {\n function WritableStream() {\n var underlyingSink = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},\n size = _ref.size,\n _ref$highWaterMark = _ref.highWaterMark,\n highWaterMark = _ref$highWaterMark === undefined ? 1 : _ref$highWaterMark;\n\n _classCallCheck(this, WritableStream);\n\n this._state = 'writable';\n\n // The error that will be reported by new method calls once the state becomes errored. Only set when [[state]] is\n // 'erroring' or 'errored'. May be set to an undefined value.\n this._storedError = undefined;\n\n this._writer = undefined;\n\n // Initialize to undefined first because the constructor of the controller checks this\n // variable to validate the caller.\n this._writableStreamController = undefined;\n\n // This queue is placed here instead of the writer class in order to allow for passing a writer to the next data\n // producer without waiting for the queued writes to finish.\n this._writeRequests = [];\n\n // Write requests are removed from _writeRequests when write() is called on the underlying sink. This prevents\n // them from being erroneously rejected on error. If a write() call is in-flight, the request is stored here.\n this._inFlightWriteRequest = undefined;\n\n // The promise that was returned from writer.close(). Stored here because it may be fulfilled after the writer\n // has been detached.\n this._closeRequest = undefined;\n\n // Close request is removed from _closeRequest when close() is called on the underlying sink. This prevents it\n // from being erroneously rejected on error. If a close() call is in-flight, the request is stored here.\n this._inFlightCloseRequest = undefined;\n\n // The promise that was returned from writer.abort(). This may also be fulfilled after the writer has detached.\n this._pendingAbortRequest = undefined;\n\n // The backpressure signal set by the controller.\n this._backpressure = false;\n\n var type = underlyingSink.type;\n\n if (type !== undefined) {\n throw new RangeError('Invalid type is specified');\n }\n\n this._writableStreamController = new WritableStreamDefaultController(this, underlyingSink, size, highWaterMark);\n this._writableStreamController.__startSteps();\n }\n\n _createClass(WritableStream, [{\n key: 'abort',\n value: function abort(reason) {\n if (IsWritableStream(this) === false) {\n return Promise.reject(streamBrandCheckException('abort'));\n }\n\n if (IsWritableStreamLocked(this) === true) {\n return Promise.reject(new TypeError('Cannot abort a stream that already has a writer'));\n }\n\n return WritableStreamAbort(this, reason);\n }\n }, {\n key: 'getWriter',\n value: function getWriter() {\n if (IsWritableStream(this) === false) {\n throw streamBrandCheckException('getWriter');\n }\n\n return AcquireWritableStreamDefaultWriter(this);\n }\n }, {\n key: 'locked',\n get: function get() {\n if (IsWritableStream(this) === false) {\n throw streamBrandCheckException('locked');\n }\n\n return IsWritableStreamLocked(this);\n }\n }]);\n\n return WritableStream;\n}();\n\nmodule.exports = {\n AcquireWritableStreamDefaultWriter: AcquireWritableStreamDefaultWriter,\n IsWritableStream: IsWritableStream,\n IsWritableStreamLocked: IsWritableStreamLocked,\n WritableStream: WritableStream,\n WritableStreamAbort: WritableStreamAbort,\n WritableStreamDefaultControllerError: WritableStreamDefaultControllerError,\n WritableStreamDefaultWriterCloseWithErrorPropagation: WritableStreamDefaultWriterCloseWithErrorPropagation,\n WritableStreamDefaultWriterRelease: WritableStreamDefaultWriterRelease,\n WritableStreamDefaultWriterWrite: WritableStreamDefaultWriterWrite,\n WritableStreamCloseQueuedOrInFlight: WritableStreamCloseQueuedOrInFlight\n};\n\n// Abstract operations for the WritableStream.\n\nfunction AcquireWritableStreamDefaultWriter(stream) {\n return new WritableStreamDefaultWriter(stream);\n}\n\nfunction IsWritableStream(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_writableStreamController')) {\n return false;\n }\n\n return true;\n}\n\nfunction IsWritableStreamLocked(stream) {\n assert(IsWritableStream(stream) === true, 'IsWritableStreamLocked should only be used on known writable streams');\n\n if (stream._writer === undefined) {\n return false;\n }\n\n return true;\n}\n\nfunction WritableStreamAbort(stream, reason) {\n var state = stream._state;\n if (state === 'closed') {\n return Promise.resolve(undefined);\n }\n if (state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n var error = new TypeError('Requested to abort');\n if (stream._pendingAbortRequest !== undefined) {\n return Promise.reject(error);\n }\n\n assert(state === 'writable' || state === 'erroring', 'state must be writable or erroring');\n\n var wasAlreadyErroring = false;\n if (state === 'erroring') {\n wasAlreadyErroring = true;\n // reason will not be used, so don't keep a reference to it.\n reason = undefined;\n }\n\n var promise = new Promise(function (resolve, reject) {\n stream._pendingAbortRequest = {\n _resolve: resolve,\n _reject: reject,\n _reason: reason,\n _wasAlreadyErroring: wasAlreadyErroring\n };\n });\n\n if (wasAlreadyErroring === false) {\n WritableStreamStartErroring(stream, error);\n }\n\n return promise;\n}\n\n// WritableStream API exposed for controllers.\n\nfunction WritableStreamAddWriteRequest(stream) {\n assert(IsWritableStreamLocked(stream) === true);\n assert(stream._state === 'writable');\n\n var promise = new Promise(function (resolve, reject) {\n var writeRequest = {\n _resolve: resolve,\n _reject: reject\n };\n\n stream._writeRequests.push(writeRequest);\n });\n\n return promise;\n}\n\nfunction WritableStreamDealWithRejection(stream, error) {\n var state = stream._state;\n\n if (state === 'writable') {\n WritableStreamStartErroring(stream, error);\n return;\n }\n\n assert(state === 'erroring');\n WritableStreamFinishErroring(stream);\n}\n\nfunction WritableStreamStartErroring(stream, reason) {\n assert(stream._storedError === undefined, 'stream._storedError === undefined');\n assert(stream._state === 'writable', 'state must be writable');\n\n var controller = stream._writableStreamController;\n assert(controller !== undefined, 'controller must not be undefined');\n\n stream._state = 'erroring';\n stream._storedError = reason;\n var writer = stream._writer;\n if (writer !== undefined) {\n WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);\n }\n\n if (WritableStreamHasOperationMarkedInFlight(stream) === false && controller._started === true) {\n WritableStreamFinishErroring(stream);\n }\n}\n\nfunction WritableStreamFinishErroring(stream) {\n assert(stream._state === 'erroring', 'stream._state === erroring');\n assert(WritableStreamHasOperationMarkedInFlight(stream) === false, 'WritableStreamHasOperationMarkedInFlight(stream) === false');\n stream._state = 'errored';\n stream._writableStreamController.__errorSteps();\n\n var storedError = stream._storedError;\n for (var i = 0; i < stream._writeRequests.length; i++) {\n var writeRequest = stream._writeRequests[i];\n writeRequest._reject(storedError);\n }\n stream._writeRequests = [];\n\n if (stream._pendingAbortRequest === undefined) {\n WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);\n return;\n }\n\n var abortRequest = stream._pendingAbortRequest;\n stream._pendingAbortRequest = undefined;\n\n if (abortRequest._wasAlreadyErroring === true) {\n abortRequest._reject(storedError);\n WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);\n return;\n }\n\n var promise = stream._writableStreamController.__abortSteps(abortRequest._reason);\n promise.then(function () {\n abortRequest._resolve();\n WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);\n }, function (reason) {\n abortRequest._reject(reason);\n WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);\n });\n}\n\nfunction WritableStreamFinishInFlightWrite(stream) {\n assert(stream._inFlightWriteRequest !== undefined);\n stream._inFlightWriteRequest._resolve(undefined);\n stream._inFlightWriteRequest = undefined;\n}\n\nfunction WritableStreamFinishInFlightWriteWithError(stream, error) {\n assert(stream._inFlightWriteRequest !== undefined);\n stream._inFlightWriteRequest._reject(error);\n stream._inFlightWriteRequest = undefined;\n\n assert(stream._state === 'writable' || stream._state === 'erroring');\n\n WritableStreamDealWithRejection(stream, error);\n}\n\nfunction WritableStreamFinishInFlightClose(stream) {\n assert(stream._inFlightCloseRequest !== undefined);\n stream._inFlightCloseRequest._resolve(undefined);\n stream._inFlightCloseRequest = undefined;\n\n var state = stream._state;\n\n assert(state === 'writable' || state === 'erroring');\n\n if (state === 'erroring') {\n // The error was too late to do anything, so it is ignored.\n stream._storedError = undefined;\n if (stream._pendingAbortRequest !== undefined) {\n stream._pendingAbortRequest._resolve();\n stream._pendingAbortRequest = undefined;\n }\n }\n\n stream._state = 'closed';\n\n var writer = stream._writer;\n if (writer !== undefined) {\n defaultWriterClosedPromiseResolve(writer);\n }\n\n assert(stream._pendingAbortRequest === undefined, 'stream._pendingAbortRequest === undefined');\n assert(stream._storedError === undefined, 'stream._storedError === undefined');\n}\n\nfunction WritableStreamFinishInFlightCloseWithError(stream, error) {\n assert(stream._inFlightCloseRequest !== undefined);\n stream._inFlightCloseRequest._reject(error);\n stream._inFlightCloseRequest = undefined;\n\n assert(stream._state === 'writable' || stream._state === 'erroring');\n\n // Never execute sink abort() after sink close().\n if (stream._pendingAbortRequest !== undefined) {\n stream._pendingAbortRequest._reject(error);\n stream._pendingAbortRequest = undefined;\n }\n WritableStreamDealWithRejection(stream, error);\n}\n\n// TODO(ricea): Fix alphabetical order.\nfunction WritableStreamCloseQueuedOrInFlight(stream) {\n if (stream._closeRequest === undefined && stream._inFlightCloseRequest === undefined) {\n return false;\n }\n\n return true;\n}\n\nfunction WritableStreamHasOperationMarkedInFlight(stream) {\n if (stream._inFlightWriteRequest === undefined && stream._inFlightCloseRequest === undefined) {\n return false;\n }\n\n return true;\n}\n\nfunction WritableStreamMarkCloseRequestInFlight(stream) {\n assert(stream._inFlightCloseRequest === undefined);\n assert(stream._closeRequest !== undefined);\n stream._inFlightCloseRequest = stream._closeRequest;\n stream._closeRequest = undefined;\n}\n\nfunction WritableStreamMarkFirstWriteRequestInFlight(stream) {\n assert(stream._inFlightWriteRequest === undefined, 'there must be no pending write request');\n assert(stream._writeRequests.length !== 0, 'writeRequests must not be empty');\n stream._inFlightWriteRequest = stream._writeRequests.shift();\n}\n\nfunction WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {\n assert(stream._state === 'errored', '_stream_.[[state]] is `\"errored\"`');\n if (stream._closeRequest !== undefined) {\n assert(stream._inFlightCloseRequest === undefined);\n\n stream._closeRequest._reject(stream._storedError);\n stream._closeRequest = undefined;\n }\n var writer = stream._writer;\n if (writer !== undefined) {\n defaultWriterClosedPromiseReject(writer, stream._storedError);\n writer._closedPromise.catch(function () {});\n }\n}\n\nfunction WritableStreamUpdateBackpressure(stream, backpressure) {\n assert(stream._state === 'writable');\n assert(WritableStreamCloseQueuedOrInFlight(stream) === false);\n\n var writer = stream._writer;\n if (writer !== undefined && backpressure !== stream._backpressure) {\n if (backpressure === true) {\n defaultWriterReadyPromiseReset(writer);\n } else {\n assert(backpressure === false);\n\n defaultWriterReadyPromiseResolve(writer);\n }\n }\n\n stream._backpressure = backpressure;\n}\n\nvar WritableStreamDefaultWriter = function () {\n function WritableStreamDefaultWriter(stream) {\n _classCallCheck(this, WritableStreamDefaultWriter);\n\n if (IsWritableStream(stream) === false) {\n throw new TypeError('WritableStreamDefaultWriter can only be constructed with a WritableStream instance');\n }\n if (IsWritableStreamLocked(stream) === true) {\n throw new TypeError('This stream has already been locked for exclusive writing by another writer');\n }\n\n this._ownerWritableStream = stream;\n stream._writer = this;\n\n var state = stream._state;\n\n if (state === 'writable') {\n if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._backpressure === true) {\n defaultWriterReadyPromiseInitialize(this);\n } else {\n defaultWriterReadyPromiseInitializeAsResolved(this);\n }\n\n defaultWriterClosedPromiseInitialize(this);\n } else if (state === 'erroring') {\n defaultWriterReadyPromiseInitializeAsRejected(this, stream._storedError);\n this._readyPromise.catch(function () {});\n defaultWriterClosedPromiseInitialize(this);\n } else if (state === 'closed') {\n defaultWriterReadyPromiseInitializeAsResolved(this);\n defaultWriterClosedPromiseInitializeAsResolved(this);\n } else {\n assert(state === 'errored', 'state must be errored');\n\n var storedError = stream._storedError;\n defaultWriterReadyPromiseInitializeAsRejected(this, storedError);\n this._readyPromise.catch(function () {});\n defaultWriterClosedPromiseInitializeAsRejected(this, storedError);\n this._closedPromise.catch(function () {});\n }\n }\n\n _createClass(WritableStreamDefaultWriter, [{\n key: 'abort',\n value: function abort(reason) {\n if (IsWritableStreamDefaultWriter(this) === false) {\n return Promise.reject(defaultWriterBrandCheckException('abort'));\n }\n\n if (this._ownerWritableStream === undefined) {\n return Promise.reject(defaultWriterLockException('abort'));\n }\n\n return WritableStreamDefaultWriterAbort(this, reason);\n }\n }, {\n key: 'close',\n value: function close() {\n if (IsWritableStreamDefaultWriter(this) === false) {\n return Promise.reject(defaultWriterBrandCheckException('close'));\n }\n\n var stream = this._ownerWritableStream;\n\n if (stream === undefined) {\n return Promise.reject(defaultWriterLockException('close'));\n }\n\n if (WritableStreamCloseQueuedOrInFlight(stream) === true) {\n return Promise.reject(new TypeError('cannot close an already-closing stream'));\n }\n\n return WritableStreamDefaultWriterClose(this);\n }\n }, {\n key: 'releaseLock',\n value: function releaseLock() {\n if (IsWritableStreamDefaultWriter(this) === false) {\n throw defaultWriterBrandCheckException('releaseLock');\n }\n\n var stream = this._ownerWritableStream;\n\n if (stream === undefined) {\n return;\n }\n\n assert(stream._writer !== undefined);\n\n WritableStreamDefaultWriterRelease(this);\n }\n }, {\n key: 'write',\n value: function write(chunk) {\n if (IsWritableStreamDefaultWriter(this) === false) {\n return Promise.reject(defaultWriterBrandCheckException('write'));\n }\n\n if (this._ownerWritableStream === undefined) {\n return Promise.reject(defaultWriterLockException('write to'));\n }\n\n return WritableStreamDefaultWriterWrite(this, chunk);\n }\n }, {\n key: 'closed',\n get: function get() {\n if (IsWritableStreamDefaultWriter(this) === false) {\n return Promise.reject(defaultWriterBrandCheckException('closed'));\n }\n\n return this._closedPromise;\n }\n }, {\n key: 'desiredSize',\n get: function get() {\n if (IsWritableStreamDefaultWriter(this) === false) {\n throw defaultWriterBrandCheckException('desiredSize');\n }\n\n if (this._ownerWritableStream === undefined) {\n throw defaultWriterLockException('desiredSize');\n }\n\n return WritableStreamDefaultWriterGetDesiredSize(this);\n }\n }, {\n key: 'ready',\n get: function get() {\n if (IsWritableStreamDefaultWriter(this) === false) {\n return Promise.reject(defaultWriterBrandCheckException('ready'));\n }\n\n return this._readyPromise;\n }\n }]);\n\n return WritableStreamDefaultWriter;\n}();\n\n// Abstract operations for the WritableStreamDefaultWriter.\n\nfunction IsWritableStreamDefaultWriter(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_ownerWritableStream')) {\n return false;\n }\n\n return true;\n}\n\n// A client of WritableStreamDefaultWriter may use these functions directly to bypass state check.\n\nfunction WritableStreamDefaultWriterAbort(writer, reason) {\n var stream = writer._ownerWritableStream;\n\n assert(stream !== undefined);\n\n return WritableStreamAbort(stream, reason);\n}\n\nfunction WritableStreamDefaultWriterClose(writer) {\n var stream = writer._ownerWritableStream;\n\n assert(stream !== undefined);\n\n var state = stream._state;\n if (state === 'closed' || state === 'errored') {\n return Promise.reject(new TypeError('The stream (in ' + state + ' state) is not in the writable state and cannot be closed'));\n }\n\n assert(state === 'writable' || state === 'erroring');\n assert(WritableStreamCloseQueuedOrInFlight(stream) === false);\n\n var promise = new Promise(function (resolve, reject) {\n var closeRequest = {\n _resolve: resolve,\n _reject: reject\n };\n\n stream._closeRequest = closeRequest;\n });\n\n if (stream._backpressure === true && state === 'writable') {\n defaultWriterReadyPromiseResolve(writer);\n }\n\n WritableStreamDefaultControllerClose(stream._writableStreamController);\n\n return promise;\n}\n\nfunction WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {\n var stream = writer._ownerWritableStream;\n\n assert(stream !== undefined);\n\n var state = stream._state;\n if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {\n return Promise.resolve();\n }\n\n if (state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n\n assert(state === 'writable' || state === 'erroring');\n\n return WritableStreamDefaultWriterClose(writer);\n}\n\nfunction WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, error) {\n if (writer._closedPromiseState === 'pending') {\n defaultWriterClosedPromiseReject(writer, error);\n } else {\n defaultWriterClosedPromiseResetToRejected(writer, error);\n }\n writer._closedPromise.catch(function () {});\n}\n\nfunction WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, error) {\n if (writer._readyPromiseState === 'pending') {\n defaultWriterReadyPromiseReject(writer, error);\n } else {\n defaultWriterReadyPromiseResetToRejected(writer, error);\n }\n writer._readyPromise.catch(function () {});\n}\n\nfunction WritableStreamDefaultWriterGetDesiredSize(writer) {\n var stream = writer._ownerWritableStream;\n var state = stream._state;\n\n if (state === 'errored' || state === 'erroring') {\n return null;\n }\n\n if (state === 'closed') {\n return 0;\n }\n\n return WritableStreamDefaultControllerGetDesiredSize(stream._writableStreamController);\n}\n\nfunction WritableStreamDefaultWriterRelease(writer) {\n var stream = writer._ownerWritableStream;\n assert(stream !== undefined);\n assert(stream._writer === writer);\n\n var releasedError = new TypeError('Writer was released and can no longer be used to monitor the stream\\'s closedness');\n\n WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);\n\n // The state transitions to \"errored\" before the sink abort() method runs, but the writer.closed promise is not\n // rejected until afterwards. This means that simply testing state will not work.\n WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);\n\n stream._writer = undefined;\n writer._ownerWritableStream = undefined;\n}\n\nfunction WritableStreamDefaultWriterWrite(writer, chunk) {\n var stream = writer._ownerWritableStream;\n\n assert(stream !== undefined);\n\n var controller = stream._writableStreamController;\n\n var chunkSize = WritableStreamDefaultControllerGetChunkSize(controller, chunk);\n\n if (stream !== writer._ownerWritableStream) {\n return Promise.reject(defaultWriterLockException('write to'));\n }\n\n var state = stream._state;\n if (state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {\n return Promise.reject(new TypeError('The stream is closing or closed and cannot be written to'));\n }\n if (state === 'erroring') {\n return Promise.reject(stream._storedError);\n }\n\n assert(state === 'writable');\n\n var promise = WritableStreamAddWriteRequest(stream);\n\n WritableStreamDefaultControllerWrite(controller, chunk, chunkSize);\n\n return promise;\n}\n\nvar WritableStreamDefaultController = function () {\n function WritableStreamDefaultController(stream, underlyingSink, size, highWaterMark) {\n _classCallCheck(this, WritableStreamDefaultController);\n\n if (IsWritableStream(stream) === false) {\n throw new TypeError('WritableStreamDefaultController can only be constructed with a WritableStream instance');\n }\n\n if (stream._writableStreamController !== undefined) {\n throw new TypeError('WritableStreamDefaultController instances can only be created by the WritableStream constructor');\n }\n\n this._controlledWritableStream = stream;\n\n this._underlyingSink = underlyingSink;\n\n // Need to set the slots so that the assert doesn't fire. In the spec the slots already exist implicitly.\n this._queue = undefined;\n this._queueTotalSize = undefined;\n ResetQueue(this);\n\n this._started = false;\n\n var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);\n this._strategySize = normalizedStrategy.size;\n this._strategyHWM = normalizedStrategy.highWaterMark;\n\n var backpressure = WritableStreamDefaultControllerGetBackpressure(this);\n WritableStreamUpdateBackpressure(stream, backpressure);\n }\n\n _createClass(WritableStreamDefaultController, [{\n key: 'error',\n value: function error(e) {\n if (IsWritableStreamDefaultController(this) === false) {\n throw new TypeError('WritableStreamDefaultController.prototype.error can only be used on a WritableStreamDefaultController');\n }\n var state = this._controlledWritableStream._state;\n if (state !== 'writable') {\n // The stream is closed, errored or will be soon. The sink can't do anything useful if it gets an error here, so\n // just treat it as a no-op.\n return;\n }\n\n WritableStreamDefaultControllerError(this, e);\n }\n }, {\n key: '__abortSteps',\n value: function __abortSteps(reason) {\n return PromiseInvokeOrNoop(this._underlyingSink, 'abort', [reason]);\n }\n }, {\n key: '__errorSteps',\n value: function __errorSteps() {\n ResetQueue(this);\n }\n }, {\n key: '__startSteps',\n value: function __startSteps() {\n var _this = this;\n\n var startResult = InvokeOrNoop(this._underlyingSink, 'start', [this]);\n var stream = this._controlledWritableStream;\n\n Promise.resolve(startResult).then(function () {\n assert(stream._state === 'writable' || stream._state === 'erroring');\n _this._started = true;\n WritableStreamDefaultControllerAdvanceQueueIfNeeded(_this);\n }, function (r) {\n assert(stream._state === 'writable' || stream._state === 'erroring');\n _this._started = true;\n WritableStreamDealWithRejection(stream, r);\n }).catch(rethrowAssertionErrorRejection);\n }\n }]);\n\n return WritableStreamDefaultController;\n}();\n\n// Abstract operations implementing interface required by the WritableStream.\n\nfunction WritableStreamDefaultControllerClose(controller) {\n EnqueueValueWithSize(controller, 'close', 0);\n WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);\n}\n\nfunction WritableStreamDefaultControllerGetChunkSize(controller, chunk) {\n var strategySize = controller._strategySize;\n\n if (strategySize === undefined) {\n return 1;\n }\n\n try {\n return strategySize(chunk);\n } catch (chunkSizeE) {\n WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);\n return 1;\n }\n}\n\nfunction WritableStreamDefaultControllerGetDesiredSize(controller) {\n return controller._strategyHWM - controller._queueTotalSize;\n}\n\nfunction WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {\n var writeRecord = { chunk: chunk };\n\n try {\n EnqueueValueWithSize(controller, writeRecord, chunkSize);\n } catch (enqueueE) {\n WritableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);\n return;\n }\n\n var stream = controller._controlledWritableStream;\n if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._state === 'writable') {\n var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);\n WritableStreamUpdateBackpressure(stream, backpressure);\n }\n\n WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);\n}\n\n// Abstract operations for the WritableStreamDefaultController.\n\nfunction IsWritableStreamDefaultController(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSink')) {\n return false;\n }\n\n return true;\n}\n\nfunction WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {\n var stream = controller._controlledWritableStream;\n\n if (controller._started === false) {\n return;\n }\n\n if (stream._inFlightWriteRequest !== undefined) {\n return;\n }\n\n var state = stream._state;\n if (state === 'closed' || state === 'errored') {\n return;\n }\n if (state === 'erroring') {\n WritableStreamFinishErroring(stream);\n return;\n }\n\n if (controller._queue.length === 0) {\n return;\n }\n\n var writeRecord = PeekQueueValue(controller);\n if (writeRecord === 'close') {\n WritableStreamDefaultControllerProcessClose(controller);\n } else {\n WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);\n }\n}\n\nfunction WritableStreamDefaultControllerErrorIfNeeded(controller, error) {\n if (controller._controlledWritableStream._state === 'writable') {\n WritableStreamDefaultControllerError(controller, error);\n }\n}\n\nfunction WritableStreamDefaultControllerProcessClose(controller) {\n var stream = controller._controlledWritableStream;\n\n WritableStreamMarkCloseRequestInFlight(stream);\n\n DequeueValue(controller);\n assert(controller._queue.length === 0, 'queue must be empty once the final write record is dequeued');\n\n var sinkClosePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'close', []);\n sinkClosePromise.then(function () {\n WritableStreamFinishInFlightClose(stream);\n }, function (reason) {\n WritableStreamFinishInFlightCloseWithError(stream, reason);\n }).catch(rethrowAssertionErrorRejection);\n}\n\nfunction WritableStreamDefaultControllerProcessWrite(controller, chunk) {\n var stream = controller._controlledWritableStream;\n\n WritableStreamMarkFirstWriteRequestInFlight(stream);\n\n var sinkWritePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'write', [chunk, controller]);\n sinkWritePromise.then(function () {\n WritableStreamFinishInFlightWrite(stream);\n\n var state = stream._state;\n assert(state === 'writable' || state === 'erroring');\n\n DequeueValue(controller);\n\n if (WritableStreamCloseQueuedOrInFlight(stream) === false && state === 'writable') {\n var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);\n WritableStreamUpdateBackpressure(stream, backpressure);\n }\n\n WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);\n }, function (reason) {\n WritableStreamFinishInFlightWriteWithError(stream, reason);\n }).catch(rethrowAssertionErrorRejection);\n}\n\nfunction WritableStreamDefaultControllerGetBackpressure(controller) {\n var desiredSize = WritableStreamDefaultControllerGetDesiredSize(controller);\n return desiredSize <= 0;\n}\n\n// A client of WritableStreamDefaultController may use these functions directly to bypass state check.\n\nfunction WritableStreamDefaultControllerError(controller, error) {\n var stream = controller._controlledWritableStream;\n\n assert(stream._state === 'writable');\n\n WritableStreamStartErroring(stream, error);\n}\n\n// Helper functions for the WritableStream.\n\nfunction streamBrandCheckException(name) {\n return new TypeError('WritableStream.prototype.' + name + ' can only be used on a WritableStream');\n}\n\n// Helper functions for the WritableStreamDefaultWriter.\n\nfunction defaultWriterBrandCheckException(name) {\n return new TypeError('WritableStreamDefaultWriter.prototype.' + name + ' can only be used on a WritableStreamDefaultWriter');\n}\n\nfunction defaultWriterLockException(name) {\n return new TypeError('Cannot ' + name + ' a stream using a released writer');\n}\n\nfunction defaultWriterClosedPromiseInitialize(writer) {\n writer._closedPromise = new Promise(function (resolve, reject) {\n writer._closedPromise_resolve = resolve;\n writer._closedPromise_reject = reject;\n writer._closedPromiseState = 'pending';\n });\n}\n\nfunction defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {\n writer._closedPromise = Promise.reject(reason);\n writer._closedPromise_resolve = undefined;\n writer._closedPromise_reject = undefined;\n writer._closedPromiseState = 'rejected';\n}\n\nfunction defaultWriterClosedPromiseInitializeAsResolved(writer) {\n writer._closedPromise = Promise.resolve(undefined);\n writer._closedPromise_resolve = undefined;\n writer._closedPromise_reject = undefined;\n writer._closedPromiseState = 'resolved';\n}\n\nfunction defaultWriterClosedPromiseReject(writer, reason) {\n assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');\n assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');\n assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');\n\n writer._closedPromise_reject(reason);\n writer._closedPromise_resolve = undefined;\n writer._closedPromise_reject = undefined;\n writer._closedPromiseState = 'rejected';\n}\n\nfunction defaultWriterClosedPromiseResetToRejected(writer, reason) {\n assert(writer._closedPromise_resolve === undefined, 'writer._closedPromise_resolve === undefined');\n assert(writer._closedPromise_reject === undefined, 'writer._closedPromise_reject === undefined');\n assert(writer._closedPromiseState !== 'pending', 'writer._closedPromiseState is not pending');\n\n writer._closedPromise = Promise.reject(reason);\n writer._closedPromiseState = 'rejected';\n}\n\nfunction defaultWriterClosedPromiseResolve(writer) {\n assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');\n assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');\n assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');\n\n writer._closedPromise_resolve(undefined);\n writer._closedPromise_resolve = undefined;\n writer._closedPromise_reject = undefined;\n writer._closedPromiseState = 'resolved';\n}\n\nfunction defaultWriterReadyPromiseInitialize(writer) {\n writer._readyPromise = new Promise(function (resolve, reject) {\n writer._readyPromise_resolve = resolve;\n writer._readyPromise_reject = reject;\n });\n writer._readyPromiseState = 'pending';\n}\n\nfunction defaultWriterReadyPromiseInitializeAsRejected(writer, reason) {\n writer._readyPromise = Promise.reject(reason);\n writer._readyPromise_resolve = undefined;\n writer._readyPromise_reject = undefined;\n writer._readyPromiseState = 'rejected';\n}\n\nfunction defaultWriterReadyPromiseInitializeAsResolved(writer) {\n writer._readyPromise = Promise.resolve(undefined);\n writer._readyPromise_resolve = undefined;\n writer._readyPromise_reject = undefined;\n writer._readyPromiseState = 'fulfilled';\n}\n\nfunction defaultWriterReadyPromiseReject(writer, reason) {\n assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');\n assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');\n\n writer._readyPromise_reject(reason);\n writer._readyPromise_resolve = undefined;\n writer._readyPromise_reject = undefined;\n writer._readyPromiseState = 'rejected';\n}\n\nfunction defaultWriterReadyPromiseReset(writer) {\n assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');\n assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');\n\n writer._readyPromise = new Promise(function (resolve, reject) {\n writer._readyPromise_resolve = resolve;\n writer._readyPromise_reject = reject;\n });\n writer._readyPromiseState = 'pending';\n}\n\nfunction defaultWriterReadyPromiseResetToRejected(writer, reason) {\n assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');\n assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');\n\n writer._readyPromise = Promise.reject(reason);\n writer._readyPromiseState = 'rejected';\n}\n\nfunction defaultWriterReadyPromiseResolve(writer) {\n assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');\n assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');\n\n writer._readyPromise_resolve(undefined);\n writer._readyPromise_resolve = undefined;\n writer._readyPromise_reject = undefined;\n writer._readyPromiseState = 'fulfilled';\n}\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar _require = __w_pdfjs_require__(0),\n IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber;\n\nvar _require2 = __w_pdfjs_require__(1),\n assert = _require2.assert;\n\nexports.DequeueValue = function (container) {\n assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: DequeueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');\n assert(container._queue.length > 0, 'Spec-level failure: should never dequeue from an empty queue.');\n\n var pair = container._queue.shift();\n container._queueTotalSize -= pair.size;\n if (container._queueTotalSize < 0) {\n container._queueTotalSize = 0;\n }\n\n return pair.value;\n};\n\nexports.EnqueueValueWithSize = function (container, value, size) {\n assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: EnqueueValueWithSize should only be used on containers with [[queue]] and ' + '[[queueTotalSize]].');\n\n size = Number(size);\n if (!IsFiniteNonNegativeNumber(size)) {\n throw new RangeError('Size must be a finite, non-NaN, non-negative number.');\n }\n\n container._queue.push({ value: value, size: size });\n container._queueTotalSize += size;\n};\n\nexports.PeekQueueValue = function (container) {\n assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: PeekQueueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');\n assert(container._queue.length > 0, 'Spec-level failure: should never peek at an empty queue.');\n\n var pair = container._queue[0];\n return pair.value;\n};\n\nexports.ResetQueue = function (container) {\n assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: ResetQueue should only be used on containers with [[queue]] and [[queueTotalSize]].');\n\n container._queue = [];\n container._queueTotalSize = 0;\n};\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar _require = __w_pdfjs_require__(0),\n ArrayBufferCopy = _require.ArrayBufferCopy,\n CreateIterResultObject = _require.CreateIterResultObject,\n IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber,\n InvokeOrNoop = _require.InvokeOrNoop,\n PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,\n TransferArrayBuffer = _require.TransferArrayBuffer,\n ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,\n ValidateAndNormalizeHighWaterMark = _require.ValidateAndNormalizeHighWaterMark;\n\nvar _require2 = __w_pdfjs_require__(0),\n createArrayFromList = _require2.createArrayFromList,\n createDataProperty = _require2.createDataProperty,\n typeIsObject = _require2.typeIsObject;\n\nvar _require3 = __w_pdfjs_require__(1),\n assert = _require3.assert,\n rethrowAssertionErrorRejection = _require3.rethrowAssertionErrorRejection;\n\nvar _require4 = __w_pdfjs_require__(3),\n DequeueValue = _require4.DequeueValue,\n EnqueueValueWithSize = _require4.EnqueueValueWithSize,\n ResetQueue = _require4.ResetQueue;\n\nvar _require5 = __w_pdfjs_require__(2),\n AcquireWritableStreamDefaultWriter = _require5.AcquireWritableStreamDefaultWriter,\n IsWritableStream = _require5.IsWritableStream,\n IsWritableStreamLocked = _require5.IsWritableStreamLocked,\n WritableStreamAbort = _require5.WritableStreamAbort,\n WritableStreamDefaultWriterCloseWithErrorPropagation = _require5.WritableStreamDefaultWriterCloseWithErrorPropagation,\n WritableStreamDefaultWriterRelease = _require5.WritableStreamDefaultWriterRelease,\n WritableStreamDefaultWriterWrite = _require5.WritableStreamDefaultWriterWrite,\n WritableStreamCloseQueuedOrInFlight = _require5.WritableStreamCloseQueuedOrInFlight;\n\nvar ReadableStream = function () {\n function ReadableStream() {\n var underlyingSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},\n size = _ref.size,\n highWaterMark = _ref.highWaterMark;\n\n _classCallCheck(this, ReadableStream);\n\n // Exposed to controllers.\n this._state = 'readable';\n\n this._reader = undefined;\n this._storedError = undefined;\n\n this._disturbed = false;\n\n // Initialize to undefined first because the constructor of the controller checks this\n // variable to validate the caller.\n this._readableStreamController = undefined;\n var type = underlyingSource.type;\n var typeString = String(type);\n if (typeString === 'bytes') {\n if (highWaterMark === undefined) {\n highWaterMark = 0;\n }\n this._readableStreamController = new ReadableByteStreamController(this, underlyingSource, highWaterMark);\n } else if (type === undefined) {\n if (highWaterMark === undefined) {\n highWaterMark = 1;\n }\n this._readableStreamController = new ReadableStreamDefaultController(this, underlyingSource, size, highWaterMark);\n } else {\n throw new RangeError('Invalid type is specified');\n }\n }\n\n _createClass(ReadableStream, [{\n key: 'cancel',\n value: function cancel(reason) {\n if (IsReadableStream(this) === false) {\n return Promise.reject(streamBrandCheckException('cancel'));\n }\n\n if (IsReadableStreamLocked(this) === true) {\n return Promise.reject(new TypeError('Cannot cancel a stream that already has a reader'));\n }\n\n return ReadableStreamCancel(this, reason);\n }\n }, {\n key: 'getReader',\n value: function getReader() {\n var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n mode = _ref2.mode;\n\n if (IsReadableStream(this) === false) {\n throw streamBrandCheckException('getReader');\n }\n\n if (mode === undefined) {\n return AcquireReadableStreamDefaultReader(this);\n }\n\n mode = String(mode);\n\n if (mode === 'byob') {\n return AcquireReadableStreamBYOBReader(this);\n }\n\n throw new RangeError('Invalid mode is specified');\n }\n }, {\n key: 'pipeThrough',\n value: function pipeThrough(_ref3, options) {\n var writable = _ref3.writable,\n readable = _ref3.readable;\n\n var promise = this.pipeTo(writable, options);\n\n ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise);\n\n return readable;\n }\n }, {\n key: 'pipeTo',\n value: function pipeTo(dest) {\n var _this = this;\n\n var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},\n preventClose = _ref4.preventClose,\n preventAbort = _ref4.preventAbort,\n preventCancel = _ref4.preventCancel;\n\n if (IsReadableStream(this) === false) {\n return Promise.reject(streamBrandCheckException('pipeTo'));\n }\n if (IsWritableStream(dest) === false) {\n return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo\\'s first argument must be a WritableStream'));\n }\n\n preventClose = Boolean(preventClose);\n preventAbort = Boolean(preventAbort);\n preventCancel = Boolean(preventCancel);\n\n if (IsReadableStreamLocked(this) === true) {\n return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked ReadableStream'));\n }\n if (IsWritableStreamLocked(dest) === true) {\n return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked WritableStream'));\n }\n\n var reader = AcquireReadableStreamDefaultReader(this);\n var writer = AcquireWritableStreamDefaultWriter(dest);\n\n var shuttingDown = false;\n\n // This is used to keep track of the spec's requirement that we wait for ongoing writes during shutdown.\n var currentWrite = Promise.resolve();\n\n return new Promise(function (resolve, reject) {\n // Using reader and writer, read all chunks from this and write them to dest\n // - Backpressure must be enforced\n // - Shutdown must stop all activity\n function pipeLoop() {\n currentWrite = Promise.resolve();\n\n if (shuttingDown === true) {\n return Promise.resolve();\n }\n\n return writer._readyPromise.then(function () {\n return ReadableStreamDefaultReaderRead(reader).then(function (_ref5) {\n var value = _ref5.value,\n done = _ref5.done;\n\n if (done === true) {\n return;\n }\n\n currentWrite = WritableStreamDefaultWriterWrite(writer, value).catch(function () {});\n });\n }).then(pipeLoop);\n }\n\n // Errors must be propagated forward\n isOrBecomesErrored(_this, reader._closedPromise, function (storedError) {\n if (preventAbort === false) {\n shutdownWithAction(function () {\n return WritableStreamAbort(dest, storedError);\n }, true, storedError);\n } else {\n shutdown(true, storedError);\n }\n });\n\n // Errors must be propagated backward\n isOrBecomesErrored(dest, writer._closedPromise, function (storedError) {\n if (preventCancel === false) {\n shutdownWithAction(function () {\n return ReadableStreamCancel(_this, storedError);\n }, true, storedError);\n } else {\n shutdown(true, storedError);\n }\n });\n\n // Closing must be propagated forward\n isOrBecomesClosed(_this, reader._closedPromise, function () {\n if (preventClose === false) {\n shutdownWithAction(function () {\n return WritableStreamDefaultWriterCloseWithErrorPropagation(writer);\n });\n } else {\n shutdown();\n }\n });\n\n // Closing must be propagated backward\n if (WritableStreamCloseQueuedOrInFlight(dest) === true || dest._state === 'closed') {\n var destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');\n\n if (preventCancel === false) {\n shutdownWithAction(function () {\n return ReadableStreamCancel(_this, destClosed);\n }, true, destClosed);\n } else {\n shutdown(true, destClosed);\n }\n }\n\n pipeLoop().catch(function (err) {\n currentWrite = Promise.resolve();\n rethrowAssertionErrorRejection(err);\n });\n\n function waitForWritesToFinish() {\n // Another write may have started while we were waiting on this currentWrite, so we have to be sure to wait\n // for that too.\n var oldCurrentWrite = currentWrite;\n return currentWrite.then(function () {\n return oldCurrentWrite !== currentWrite ? waitForWritesToFinish() : undefined;\n });\n }\n\n function isOrBecomesErrored(stream, promise, action) {\n if (stream._state === 'errored') {\n action(stream._storedError);\n } else {\n promise.catch(action).catch(rethrowAssertionErrorRejection);\n }\n }\n\n function isOrBecomesClosed(stream, promise, action) {\n if (stream._state === 'closed') {\n action();\n } else {\n promise.then(action).catch(rethrowAssertionErrorRejection);\n }\n }\n\n function shutdownWithAction(action, originalIsError, originalError) {\n if (shuttingDown === true) {\n return;\n }\n shuttingDown = true;\n\n if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {\n waitForWritesToFinish().then(doTheRest);\n } else {\n doTheRest();\n }\n\n function doTheRest() {\n action().then(function () {\n return finalize(originalIsError, originalError);\n }, function (newError) {\n return finalize(true, newError);\n }).catch(rethrowAssertionErrorRejection);\n }\n }\n\n function shutdown(isError, error) {\n if (shuttingDown === true) {\n return;\n }\n shuttingDown = true;\n\n if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {\n waitForWritesToFinish().then(function () {\n return finalize(isError, error);\n }).catch(rethrowAssertionErrorRejection);\n } else {\n finalize(isError, error);\n }\n }\n\n function finalize(isError, error) {\n WritableStreamDefaultWriterRelease(writer);\n ReadableStreamReaderGenericRelease(reader);\n\n if (isError) {\n reject(error);\n } else {\n resolve(undefined);\n }\n }\n });\n }\n }, {\n key: 'tee',\n value: function tee() {\n if (IsReadableStream(this) === false) {\n throw streamBrandCheckException('tee');\n }\n\n var branches = ReadableStreamTee(this, false);\n return createArrayFromList(branches);\n }\n }, {\n key: 'locked',\n get: function get() {\n if (IsReadableStream(this) === false) {\n throw streamBrandCheckException('locked');\n }\n\n return IsReadableStreamLocked(this);\n }\n }]);\n\n return ReadableStream;\n}();\n\nmodule.exports = {\n ReadableStream: ReadableStream,\n IsReadableStreamDisturbed: IsReadableStreamDisturbed,\n ReadableStreamDefaultControllerClose: ReadableStreamDefaultControllerClose,\n ReadableStreamDefaultControllerEnqueue: ReadableStreamDefaultControllerEnqueue,\n ReadableStreamDefaultControllerError: ReadableStreamDefaultControllerError,\n ReadableStreamDefaultControllerGetDesiredSize: ReadableStreamDefaultControllerGetDesiredSize\n};\n\n// Abstract operations for the ReadableStream.\n\nfunction AcquireReadableStreamBYOBReader(stream) {\n return new ReadableStreamBYOBReader(stream);\n}\n\nfunction AcquireReadableStreamDefaultReader(stream) {\n return new ReadableStreamDefaultReader(stream);\n}\n\nfunction IsReadableStream(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_readableStreamController')) {\n return false;\n }\n\n return true;\n}\n\nfunction IsReadableStreamDisturbed(stream) {\n assert(IsReadableStream(stream) === true, 'IsReadableStreamDisturbed should only be used on known readable streams');\n\n return stream._disturbed;\n}\n\nfunction IsReadableStreamLocked(stream) {\n assert(IsReadableStream(stream) === true, 'IsReadableStreamLocked should only be used on known readable streams');\n\n if (stream._reader === undefined) {\n return false;\n }\n\n return true;\n}\n\nfunction ReadableStreamTee(stream, cloneForBranch2) {\n assert(IsReadableStream(stream) === true);\n assert(typeof cloneForBranch2 === 'boolean');\n\n var reader = AcquireReadableStreamDefaultReader(stream);\n\n var teeState = {\n closedOrErrored: false,\n canceled1: false,\n canceled2: false,\n reason1: undefined,\n reason2: undefined\n };\n teeState.promise = new Promise(function (resolve) {\n teeState._resolve = resolve;\n });\n\n var pull = create_ReadableStreamTeePullFunction();\n pull._reader = reader;\n pull._teeState = teeState;\n pull._cloneForBranch2 = cloneForBranch2;\n\n var cancel1 = create_ReadableStreamTeeBranch1CancelFunction();\n cancel1._stream = stream;\n cancel1._teeState = teeState;\n\n var cancel2 = create_ReadableStreamTeeBranch2CancelFunction();\n cancel2._stream = stream;\n cancel2._teeState = teeState;\n\n var underlyingSource1 = Object.create(Object.prototype);\n createDataProperty(underlyingSource1, 'pull', pull);\n createDataProperty(underlyingSource1, 'cancel', cancel1);\n var branch1Stream = new ReadableStream(underlyingSource1);\n\n var underlyingSource2 = Object.create(Object.prototype);\n createDataProperty(underlyingSource2, 'pull', pull);\n createDataProperty(underlyingSource2, 'cancel', cancel2);\n var branch2Stream = new ReadableStream(underlyingSource2);\n\n pull._branch1 = branch1Stream._readableStreamController;\n pull._branch2 = branch2Stream._readableStreamController;\n\n reader._closedPromise.catch(function (r) {\n if (teeState.closedOrErrored === true) {\n return;\n }\n\n ReadableStreamDefaultControllerError(pull._branch1, r);\n ReadableStreamDefaultControllerError(pull._branch2, r);\n teeState.closedOrErrored = true;\n });\n\n return [branch1Stream, branch2Stream];\n}\n\nfunction create_ReadableStreamTeePullFunction() {\n function f() {\n var reader = f._reader,\n branch1 = f._branch1,\n branch2 = f._branch2,\n teeState = f._teeState;\n\n\n return ReadableStreamDefaultReaderRead(reader).then(function (result) {\n assert(typeIsObject(result));\n var value = result.value;\n var done = result.done;\n assert(typeof done === 'boolean');\n\n if (done === true && teeState.closedOrErrored === false) {\n if (teeState.canceled1 === false) {\n ReadableStreamDefaultControllerClose(branch1);\n }\n if (teeState.canceled2 === false) {\n ReadableStreamDefaultControllerClose(branch2);\n }\n teeState.closedOrErrored = true;\n }\n\n if (teeState.closedOrErrored === true) {\n return;\n }\n\n var value1 = value;\n var value2 = value;\n\n // There is no way to access the cloning code right now in the reference implementation.\n // If we add one then we'll need an implementation for serializable objects.\n // if (teeState.canceled2 === false && cloneForBranch2 === true) {\n // value2 = StructuredDeserialize(StructuredSerialize(value2));\n // }\n\n if (teeState.canceled1 === false) {\n ReadableStreamDefaultControllerEnqueue(branch1, value1);\n }\n\n if (teeState.canceled2 === false) {\n ReadableStreamDefaultControllerEnqueue(branch2, value2);\n }\n });\n }\n return f;\n}\n\nfunction create_ReadableStreamTeeBranch1CancelFunction() {\n function f(reason) {\n var stream = f._stream,\n teeState = f._teeState;\n\n\n teeState.canceled1 = true;\n teeState.reason1 = reason;\n if (teeState.canceled2 === true) {\n var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);\n var cancelResult = ReadableStreamCancel(stream, compositeReason);\n teeState._resolve(cancelResult);\n }\n return teeState.promise;\n }\n return f;\n}\n\nfunction create_ReadableStreamTeeBranch2CancelFunction() {\n function f(reason) {\n var stream = f._stream,\n teeState = f._teeState;\n\n\n teeState.canceled2 = true;\n teeState.reason2 = reason;\n if (teeState.canceled1 === true) {\n var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);\n var cancelResult = ReadableStreamCancel(stream, compositeReason);\n teeState._resolve(cancelResult);\n }\n return teeState.promise;\n }\n return f;\n}\n\n// ReadableStream API exposed for controllers.\n\nfunction ReadableStreamAddReadIntoRequest(stream) {\n assert(IsReadableStreamBYOBReader(stream._reader) === true);\n assert(stream._state === 'readable' || stream._state === 'closed');\n\n var promise = new Promise(function (resolve, reject) {\n var readIntoRequest = {\n _resolve: resolve,\n _reject: reject\n };\n\n stream._reader._readIntoRequests.push(readIntoRequest);\n });\n\n return promise;\n}\n\nfunction ReadableStreamAddReadRequest(stream) {\n assert(IsReadableStreamDefaultReader(stream._reader) === true);\n assert(stream._state === 'readable');\n\n var promise = new Promise(function (resolve, reject) {\n var readRequest = {\n _resolve: resolve,\n _reject: reject\n };\n\n stream._reader._readRequests.push(readRequest);\n });\n\n return promise;\n}\n\nfunction ReadableStreamCancel(stream, reason) {\n stream._disturbed = true;\n\n if (stream._state === 'closed') {\n return Promise.resolve(undefined);\n }\n if (stream._state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n\n ReadableStreamClose(stream);\n\n var sourceCancelPromise = stream._readableStreamController.__cancelSteps(reason);\n return sourceCancelPromise.then(function () {\n return undefined;\n });\n}\n\nfunction ReadableStreamClose(stream) {\n assert(stream._state === 'readable');\n\n stream._state = 'closed';\n\n var reader = stream._reader;\n\n if (reader === undefined) {\n return undefined;\n }\n\n if (IsReadableStreamDefaultReader(reader) === true) {\n for (var i = 0; i < reader._readRequests.length; i++) {\n var _resolve = reader._readRequests[i]._resolve;\n\n _resolve(CreateIterResultObject(undefined, true));\n }\n reader._readRequests = [];\n }\n\n defaultReaderClosedPromiseResolve(reader);\n\n return undefined;\n}\n\nfunction ReadableStreamError(stream, e) {\n assert(IsReadableStream(stream) === true, 'stream must be ReadableStream');\n assert(stream._state === 'readable', 'state must be readable');\n\n stream._state = 'errored';\n stream._storedError = e;\n\n var reader = stream._reader;\n\n if (reader === undefined) {\n return undefined;\n }\n\n if (IsReadableStreamDefaultReader(reader) === true) {\n for (var i = 0; i < reader._readRequests.length; i++) {\n var readRequest = reader._readRequests[i];\n readRequest._reject(e);\n }\n\n reader._readRequests = [];\n } else {\n assert(IsReadableStreamBYOBReader(reader), 'reader must be ReadableStreamBYOBReader');\n\n for (var _i = 0; _i < reader._readIntoRequests.length; _i++) {\n var readIntoRequest = reader._readIntoRequests[_i];\n readIntoRequest._reject(e);\n }\n\n reader._readIntoRequests = [];\n }\n\n defaultReaderClosedPromiseReject(reader, e);\n reader._closedPromise.catch(function () {});\n}\n\nfunction ReadableStreamFulfillReadIntoRequest(stream, chunk, done) {\n var reader = stream._reader;\n\n assert(reader._readIntoRequests.length > 0);\n\n var readIntoRequest = reader._readIntoRequests.shift();\n readIntoRequest._resolve(CreateIterResultObject(chunk, done));\n}\n\nfunction ReadableStreamFulfillReadRequest(stream, chunk, done) {\n var reader = stream._reader;\n\n assert(reader._readRequests.length > 0);\n\n var readRequest = reader._readRequests.shift();\n readRequest._resolve(CreateIterResultObject(chunk, done));\n}\n\nfunction ReadableStreamGetNumReadIntoRequests(stream) {\n return stream._reader._readIntoRequests.length;\n}\n\nfunction ReadableStreamGetNumReadRequests(stream) {\n return stream._reader._readRequests.length;\n}\n\nfunction ReadableStreamHasBYOBReader(stream) {\n var reader = stream._reader;\n\n if (reader === undefined) {\n return false;\n }\n\n if (IsReadableStreamBYOBReader(reader) === false) {\n return false;\n }\n\n return true;\n}\n\nfunction ReadableStreamHasDefaultReader(stream) {\n var reader = stream._reader;\n\n if (reader === undefined) {\n return false;\n }\n\n if (IsReadableStreamDefaultReader(reader) === false) {\n return false;\n }\n\n return true;\n}\n\n// Readers\n\nvar ReadableStreamDefaultReader = function () {\n function ReadableStreamDefaultReader(stream) {\n _classCallCheck(this, ReadableStreamDefaultReader);\n\n if (IsReadableStream(stream) === false) {\n throw new TypeError('ReadableStreamDefaultReader can only be constructed with a ReadableStream instance');\n }\n if (IsReadableStreamLocked(stream) === true) {\n throw new TypeError('This stream has already been locked for exclusive reading by another reader');\n }\n\n ReadableStreamReaderGenericInitialize(this, stream);\n\n this._readRequests = [];\n }\n\n _createClass(ReadableStreamDefaultReader, [{\n key: 'cancel',\n value: function cancel(reason) {\n if (IsReadableStreamDefaultReader(this) === false) {\n return Promise.reject(defaultReaderBrandCheckException('cancel'));\n }\n\n if (this._ownerReadableStream === undefined) {\n return Promise.reject(readerLockException('cancel'));\n }\n\n return ReadableStreamReaderGenericCancel(this, reason);\n }\n }, {\n key: 'read',\n value: function read() {\n if (IsReadableStreamDefaultReader(this) === false) {\n return Promise.reject(defaultReaderBrandCheckException('read'));\n }\n\n if (this._ownerReadableStream === undefined) {\n return Promise.reject(readerLockException('read from'));\n }\n\n return ReadableStreamDefaultReaderRead(this);\n }\n }, {\n key: 'releaseLock',\n value: function releaseLock() {\n if (IsReadableStreamDefaultReader(this) === false) {\n throw defaultReaderBrandCheckException('releaseLock');\n }\n\n if (this._ownerReadableStream === undefined) {\n return;\n }\n\n if (this._readRequests.length > 0) {\n throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');\n }\n\n ReadableStreamReaderGenericRelease(this);\n }\n }, {\n key: 'closed',\n get: function get() {\n if (IsReadableStreamDefaultReader(this) === false) {\n return Promise.reject(defaultReaderBrandCheckException('closed'));\n }\n\n return this._closedPromise;\n }\n }]);\n\n return ReadableStreamDefaultReader;\n}();\n\nvar ReadableStreamBYOBReader = function () {\n function ReadableStreamBYOBReader(stream) {\n _classCallCheck(this, ReadableStreamBYOBReader);\n\n if (!IsReadableStream(stream)) {\n throw new TypeError('ReadableStreamBYOBReader can only be constructed with a ReadableStream instance given a ' + 'byte source');\n }\n if (IsReadableByteStreamController(stream._readableStreamController) === false) {\n throw new TypeError('Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte ' + 'source');\n }\n if (IsReadableStreamLocked(stream)) {\n throw new TypeError('This stream has already been locked for exclusive reading by another reader');\n }\n\n ReadableStreamReaderGenericInitialize(this, stream);\n\n this._readIntoRequests = [];\n }\n\n _createClass(ReadableStreamBYOBReader, [{\n key: 'cancel',\n value: function cancel(reason) {\n if (!IsReadableStreamBYOBReader(this)) {\n return Promise.reject(byobReaderBrandCheckException('cancel'));\n }\n\n if (this._ownerReadableStream === undefined) {\n return Promise.reject(readerLockException('cancel'));\n }\n\n return ReadableStreamReaderGenericCancel(this, reason);\n }\n }, {\n key: 'read',\n value: function read(view) {\n if (!IsReadableStreamBYOBReader(this)) {\n return Promise.reject(byobReaderBrandCheckException('read'));\n }\n\n if (this._ownerReadableStream === undefined) {\n return Promise.reject(readerLockException('read from'));\n }\n\n if (!ArrayBuffer.isView(view)) {\n return Promise.reject(new TypeError('view must be an array buffer view'));\n }\n\n if (view.byteLength === 0) {\n return Promise.reject(new TypeError('view must have non-zero byteLength'));\n }\n\n return ReadableStreamBYOBReaderRead(this, view);\n }\n }, {\n key: 'releaseLock',\n value: function releaseLock() {\n if (!IsReadableStreamBYOBReader(this)) {\n throw byobReaderBrandCheckException('releaseLock');\n }\n\n if (this._ownerReadableStream === undefined) {\n return;\n }\n\n if (this._readIntoRequests.length > 0) {\n throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');\n }\n\n ReadableStreamReaderGenericRelease(this);\n }\n }, {\n key: 'closed',\n get: function get() {\n if (!IsReadableStreamBYOBReader(this)) {\n return Promise.reject(byobReaderBrandCheckException('closed'));\n }\n\n return this._closedPromise;\n }\n }]);\n\n return ReadableStreamBYOBReader;\n}();\n\n// Abstract operations for the readers.\n\nfunction IsReadableStreamBYOBReader(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_readIntoRequests')) {\n return false;\n }\n\n return true;\n}\n\nfunction IsReadableStreamDefaultReader(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {\n return false;\n }\n\n return true;\n}\n\nfunction ReadableStreamReaderGenericInitialize(reader, stream) {\n reader._ownerReadableStream = stream;\n stream._reader = reader;\n\n if (stream._state === 'readable') {\n defaultReaderClosedPromiseInitialize(reader);\n } else if (stream._state === 'closed') {\n defaultReaderClosedPromiseInitializeAsResolved(reader);\n } else {\n assert(stream._state === 'errored', 'state must be errored');\n\n defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);\n reader._closedPromise.catch(function () {});\n }\n}\n\n// A client of ReadableStreamDefaultReader and ReadableStreamBYOBReader may use these functions directly to bypass state\n// check.\n\nfunction ReadableStreamReaderGenericCancel(reader, reason) {\n var stream = reader._ownerReadableStream;\n assert(stream !== undefined);\n return ReadableStreamCancel(stream, reason);\n}\n\nfunction ReadableStreamReaderGenericRelease(reader) {\n assert(reader._ownerReadableStream !== undefined);\n assert(reader._ownerReadableStream._reader === reader);\n\n if (reader._ownerReadableStream._state === 'readable') {\n defaultReaderClosedPromiseReject(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\\'s closedness'));\n } else {\n defaultReaderClosedPromiseResetToRejected(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\\'s closedness'));\n }\n reader._closedPromise.catch(function () {});\n\n reader._ownerReadableStream._reader = undefined;\n reader._ownerReadableStream = undefined;\n}\n\nfunction ReadableStreamBYOBReaderRead(reader, view) {\n var stream = reader._ownerReadableStream;\n\n assert(stream !== undefined);\n\n stream._disturbed = true;\n\n if (stream._state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n\n // Controllers must implement this.\n return ReadableByteStreamControllerPullInto(stream._readableStreamController, view);\n}\n\nfunction ReadableStreamDefaultReaderRead(reader) {\n var stream = reader._ownerReadableStream;\n\n assert(stream !== undefined);\n\n stream._disturbed = true;\n\n if (stream._state === 'closed') {\n return Promise.resolve(CreateIterResultObject(undefined, true));\n }\n\n if (stream._state === 'errored') {\n return Promise.reject(stream._storedError);\n }\n\n assert(stream._state === 'readable');\n\n return stream._readableStreamController.__pullSteps();\n}\n\n// Controllers\n\nvar ReadableStreamDefaultController = function () {\n function ReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark) {\n _classCallCheck(this, ReadableStreamDefaultController);\n\n if (IsReadableStream(stream) === false) {\n throw new TypeError('ReadableStreamDefaultController can only be constructed with a ReadableStream instance');\n }\n\n if (stream._readableStreamController !== undefined) {\n throw new TypeError('ReadableStreamDefaultController instances can only be created by the ReadableStream constructor');\n }\n\n this._controlledReadableStream = stream;\n\n this._underlyingSource = underlyingSource;\n\n // Need to set the slots so that the assert doesn't fire. In the spec the slots already exist implicitly.\n this._queue = undefined;\n this._queueTotalSize = undefined;\n ResetQueue(this);\n\n this._started = false;\n this._closeRequested = false;\n this._pullAgain = false;\n this._pulling = false;\n\n var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);\n this._strategySize = normalizedStrategy.size;\n this._strategyHWM = normalizedStrategy.highWaterMark;\n\n var controller = this;\n\n var startResult = InvokeOrNoop(underlyingSource, 'start', [this]);\n Promise.resolve(startResult).then(function () {\n controller._started = true;\n\n assert(controller._pulling === false);\n assert(controller._pullAgain === false);\n\n ReadableStreamDefaultControllerCallPullIfNeeded(controller);\n }, function (r) {\n ReadableStreamDefaultControllerErrorIfNeeded(controller, r);\n }).catch(rethrowAssertionErrorRejection);\n }\n\n _createClass(ReadableStreamDefaultController, [{\n key: 'close',\n value: function close() {\n if (IsReadableStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('close');\n }\n\n if (this._closeRequested === true) {\n throw new TypeError('The stream has already been closed; do not close it again!');\n }\n\n var state = this._controlledReadableStream._state;\n if (state !== 'readable') {\n throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');\n }\n\n ReadableStreamDefaultControllerClose(this);\n }\n }, {\n key: 'enqueue',\n value: function enqueue(chunk) {\n if (IsReadableStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('enqueue');\n }\n\n if (this._closeRequested === true) {\n throw new TypeError('stream is closed or draining');\n }\n\n var state = this._controlledReadableStream._state;\n if (state !== 'readable') {\n throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');\n }\n\n return ReadableStreamDefaultControllerEnqueue(this, chunk);\n }\n }, {\n key: 'error',\n value: function error(e) {\n if (IsReadableStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('error');\n }\n\n var stream = this._controlledReadableStream;\n if (stream._state !== 'readable') {\n throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');\n }\n\n ReadableStreamDefaultControllerError(this, e);\n }\n }, {\n key: '__cancelSteps',\n value: function __cancelSteps(reason) {\n ResetQueue(this);\n return PromiseInvokeOrNoop(this._underlyingSource, 'cancel', [reason]);\n }\n }, {\n key: '__pullSteps',\n value: function __pullSteps() {\n var stream = this._controlledReadableStream;\n\n if (this._queue.length > 0) {\n var chunk = DequeueValue(this);\n\n if (this._closeRequested === true && this._queue.length === 0) {\n ReadableStreamClose(stream);\n } else {\n ReadableStreamDefaultControllerCallPullIfNeeded(this);\n }\n\n return Promise.resolve(CreateIterResultObject(chunk, false));\n }\n\n var pendingPromise = ReadableStreamAddReadRequest(stream);\n ReadableStreamDefaultControllerCallPullIfNeeded(this);\n return pendingPromise;\n }\n }, {\n key: 'desiredSize',\n get: function get() {\n if (IsReadableStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('desiredSize');\n }\n\n return ReadableStreamDefaultControllerGetDesiredSize(this);\n }\n }]);\n\n return ReadableStreamDefaultController;\n}();\n\n// Abstract operations for the ReadableStreamDefaultController.\n\nfunction IsReadableStreamDefaultController(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSource')) {\n return false;\n }\n\n return true;\n}\n\nfunction ReadableStreamDefaultControllerCallPullIfNeeded(controller) {\n var shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);\n if (shouldPull === false) {\n return undefined;\n }\n\n if (controller._pulling === true) {\n controller._pullAgain = true;\n return undefined;\n }\n\n assert(controller._pullAgain === false);\n\n controller._pulling = true;\n\n var pullPromise = PromiseInvokeOrNoop(controller._underlyingSource, 'pull', [controller]);\n pullPromise.then(function () {\n controller._pulling = false;\n\n if (controller._pullAgain === true) {\n controller._pullAgain = false;\n return ReadableStreamDefaultControllerCallPullIfNeeded(controller);\n }\n return undefined;\n }, function (e) {\n ReadableStreamDefaultControllerErrorIfNeeded(controller, e);\n }).catch(rethrowAssertionErrorRejection);\n\n return undefined;\n}\n\nfunction ReadableStreamDefaultControllerShouldCallPull(controller) {\n var stream = controller._controlledReadableStream;\n\n if (stream._state === 'closed' || stream._state === 'errored') {\n return false;\n }\n\n if (controller._closeRequested === true) {\n return false;\n }\n\n if (controller._started === false) {\n return false;\n }\n\n if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {\n return true;\n }\n\n var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);\n if (desiredSize > 0) {\n return true;\n }\n\n return false;\n}\n\n// A client of ReadableStreamDefaultController may use these functions directly to bypass state check.\n\nfunction ReadableStreamDefaultControllerClose(controller) {\n var stream = controller._controlledReadableStream;\n\n assert(controller._closeRequested === false);\n assert(stream._state === 'readable');\n\n controller._closeRequested = true;\n\n if (controller._queue.length === 0) {\n ReadableStreamClose(stream);\n }\n}\n\nfunction ReadableStreamDefaultControllerEnqueue(controller, chunk) {\n var stream = controller._controlledReadableStream;\n\n assert(controller._closeRequested === false);\n assert(stream._state === 'readable');\n\n if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {\n ReadableStreamFulfillReadRequest(stream, chunk, false);\n } else {\n var chunkSize = 1;\n\n if (controller._strategySize !== undefined) {\n var strategySize = controller._strategySize;\n try {\n chunkSize = strategySize(chunk);\n } catch (chunkSizeE) {\n ReadableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);\n throw chunkSizeE;\n }\n }\n\n try {\n EnqueueValueWithSize(controller, chunk, chunkSize);\n } catch (enqueueE) {\n ReadableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);\n throw enqueueE;\n }\n }\n\n ReadableStreamDefaultControllerCallPullIfNeeded(controller);\n\n return undefined;\n}\n\nfunction ReadableStreamDefaultControllerError(controller, e) {\n var stream = controller._controlledReadableStream;\n\n assert(stream._state === 'readable');\n\n ResetQueue(controller);\n\n ReadableStreamError(stream, e);\n}\n\nfunction ReadableStreamDefaultControllerErrorIfNeeded(controller, e) {\n if (controller._controlledReadableStream._state === 'readable') {\n ReadableStreamDefaultControllerError(controller, e);\n }\n}\n\nfunction ReadableStreamDefaultControllerGetDesiredSize(controller) {\n var stream = controller._controlledReadableStream;\n var state = stream._state;\n\n if (state === 'errored') {\n return null;\n }\n if (state === 'closed') {\n return 0;\n }\n\n return controller._strategyHWM - controller._queueTotalSize;\n}\n\nvar ReadableStreamBYOBRequest = function () {\n function ReadableStreamBYOBRequest(controller, view) {\n _classCallCheck(this, ReadableStreamBYOBRequest);\n\n this._associatedReadableByteStreamController = controller;\n this._view = view;\n }\n\n _createClass(ReadableStreamBYOBRequest, [{\n key: 'respond',\n value: function respond(bytesWritten) {\n if (IsReadableStreamBYOBRequest(this) === false) {\n throw byobRequestBrandCheckException('respond');\n }\n\n if (this._associatedReadableByteStreamController === undefined) {\n throw new TypeError('This BYOB request has been invalidated');\n }\n\n ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);\n }\n }, {\n key: 'respondWithNewView',\n value: function respondWithNewView(view) {\n if (IsReadableStreamBYOBRequest(this) === false) {\n throw byobRequestBrandCheckException('respond');\n }\n\n if (this._associatedReadableByteStreamController === undefined) {\n throw new TypeError('This BYOB request has been invalidated');\n }\n\n if (!ArrayBuffer.isView(view)) {\n throw new TypeError('You can only respond with array buffer views');\n }\n\n ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);\n }\n }, {\n key: 'view',\n get: function get() {\n return this._view;\n }\n }]);\n\n return ReadableStreamBYOBRequest;\n}();\n\nvar ReadableByteStreamController = function () {\n function ReadableByteStreamController(stream, underlyingByteSource, highWaterMark) {\n _classCallCheck(this, ReadableByteStreamController);\n\n if (IsReadableStream(stream) === false) {\n throw new TypeError('ReadableByteStreamController can only be constructed with a ReadableStream instance given ' + 'a byte source');\n }\n\n if (stream._readableStreamController !== undefined) {\n throw new TypeError('ReadableByteStreamController instances can only be created by the ReadableStream constructor given a byte ' + 'source');\n }\n\n this._controlledReadableStream = stream;\n\n this._underlyingByteSource = underlyingByteSource;\n\n this._pullAgain = false;\n this._pulling = false;\n\n ReadableByteStreamControllerClearPendingPullIntos(this);\n\n // Need to set the slots so that the assert doesn't fire. In the spec the slots already exist implicitly.\n this._queue = this._queueTotalSize = undefined;\n ResetQueue(this);\n\n this._closeRequested = false;\n this._started = false;\n\n this._strategyHWM = ValidateAndNormalizeHighWaterMark(highWaterMark);\n\n var autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;\n if (autoAllocateChunkSize !== undefined) {\n if (Number.isInteger(autoAllocateChunkSize) === false || autoAllocateChunkSize <= 0) {\n throw new RangeError('autoAllocateChunkSize must be a positive integer');\n }\n }\n this._autoAllocateChunkSize = autoAllocateChunkSize;\n\n this._pendingPullIntos = [];\n\n var controller = this;\n\n var startResult = InvokeOrNoop(underlyingByteSource, 'start', [this]);\n Promise.resolve(startResult).then(function () {\n controller._started = true;\n\n assert(controller._pulling === false);\n assert(controller._pullAgain === false);\n\n ReadableByteStreamControllerCallPullIfNeeded(controller);\n }, function (r) {\n if (stream._state === 'readable') {\n ReadableByteStreamControllerError(controller, r);\n }\n }).catch(rethrowAssertionErrorRejection);\n }\n\n _createClass(ReadableByteStreamController, [{\n key: 'close',\n value: function close() {\n if (IsReadableByteStreamController(this) === false) {\n throw byteStreamControllerBrandCheckException('close');\n }\n\n if (this._closeRequested === true) {\n throw new TypeError('The stream has already been closed; do not close it again!');\n }\n\n var state = this._controlledReadableStream._state;\n if (state !== 'readable') {\n throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');\n }\n\n ReadableByteStreamControllerClose(this);\n }\n }, {\n key: 'enqueue',\n value: function enqueue(chunk) {\n if (IsReadableByteStreamController(this) === false) {\n throw byteStreamControllerBrandCheckException('enqueue');\n }\n\n if (this._closeRequested === true) {\n throw new TypeError('stream is closed or draining');\n }\n\n var state = this._controlledReadableStream._state;\n if (state !== 'readable') {\n throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');\n }\n\n if (!ArrayBuffer.isView(chunk)) {\n throw new TypeError('You can only enqueue array buffer views when using a ReadableByteStreamController');\n }\n\n ReadableByteStreamControllerEnqueue(this, chunk);\n }\n }, {\n key: 'error',\n value: function error(e) {\n if (IsReadableByteStreamController(this) === false) {\n throw byteStreamControllerBrandCheckException('error');\n }\n\n var stream = this._controlledReadableStream;\n if (stream._state !== 'readable') {\n throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');\n }\n\n ReadableByteStreamControllerError(this, e);\n }\n }, {\n key: '__cancelSteps',\n value: function __cancelSteps(reason) {\n if (this._pendingPullIntos.length > 0) {\n var firstDescriptor = this._pendingPullIntos[0];\n firstDescriptor.bytesFilled = 0;\n }\n\n ResetQueue(this);\n\n return PromiseInvokeOrNoop(this._underlyingByteSource, 'cancel', [reason]);\n }\n }, {\n key: '__pullSteps',\n value: function __pullSteps() {\n var stream = this._controlledReadableStream;\n assert(ReadableStreamHasDefaultReader(stream) === true);\n\n if (this._queueTotalSize > 0) {\n assert(ReadableStreamGetNumReadRequests(stream) === 0);\n\n var entry = this._queue.shift();\n this._queueTotalSize -= entry.byteLength;\n\n ReadableByteStreamControllerHandleQueueDrain(this);\n\n var view = void 0;\n try {\n view = new Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);\n } catch (viewE) {\n return Promise.reject(viewE);\n }\n\n return Promise.resolve(CreateIterResultObject(view, false));\n }\n\n var autoAllocateChunkSize = this._autoAllocateChunkSize;\n if (autoAllocateChunkSize !== undefined) {\n var buffer = void 0;\n try {\n buffer = new ArrayBuffer(autoAllocateChunkSize);\n } catch (bufferE) {\n return Promise.reject(bufferE);\n }\n\n var pullIntoDescriptor = {\n buffer: buffer,\n byteOffset: 0,\n byteLength: autoAllocateChunkSize,\n bytesFilled: 0,\n elementSize: 1,\n ctor: Uint8Array,\n readerType: 'default'\n };\n\n this._pendingPullIntos.push(pullIntoDescriptor);\n }\n\n var promise = ReadableStreamAddReadRequest(stream);\n\n ReadableByteStreamControllerCallPullIfNeeded(this);\n\n return promise;\n }\n }, {\n key: 'byobRequest',\n get: function get() {\n if (IsReadableByteStreamController(this) === false) {\n throw byteStreamControllerBrandCheckException('byobRequest');\n }\n\n if (this._byobRequest === undefined && this._pendingPullIntos.length > 0) {\n var firstDescriptor = this._pendingPullIntos[0];\n var view = new Uint8Array(firstDescriptor.buffer, firstDescriptor.byteOffset + firstDescriptor.bytesFilled, firstDescriptor.byteLength - firstDescriptor.bytesFilled);\n\n this._byobRequest = new ReadableStreamBYOBRequest(this, view);\n }\n\n return this._byobRequest;\n }\n }, {\n key: 'desiredSize',\n get: function get() {\n if (IsReadableByteStreamController(this) === false) {\n throw byteStreamControllerBrandCheckException('desiredSize');\n }\n\n return ReadableByteStreamControllerGetDesiredSize(this);\n }\n }]);\n\n return ReadableByteStreamController;\n}();\n\n// Abstract operations for the ReadableByteStreamController.\n\nfunction IsReadableByteStreamController(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_underlyingByteSource')) {\n return false;\n }\n\n return true;\n}\n\nfunction IsReadableStreamBYOBRequest(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_associatedReadableByteStreamController')) {\n return false;\n }\n\n return true;\n}\n\nfunction ReadableByteStreamControllerCallPullIfNeeded(controller) {\n var shouldPull = ReadableByteStreamControllerShouldCallPull(controller);\n if (shouldPull === false) {\n return undefined;\n }\n\n if (controller._pulling === true) {\n controller._pullAgain = true;\n return undefined;\n }\n\n assert(controller._pullAgain === false);\n\n controller._pulling = true;\n\n // TODO: Test controller argument\n var pullPromise = PromiseInvokeOrNoop(controller._underlyingByteSource, 'pull', [controller]);\n pullPromise.then(function () {\n controller._pulling = false;\n\n if (controller._pullAgain === true) {\n controller._pullAgain = false;\n ReadableByteStreamControllerCallPullIfNeeded(controller);\n }\n }, function (e) {\n if (controller._controlledReadableStream._state === 'readable') {\n ReadableByteStreamControllerError(controller, e);\n }\n }).catch(rethrowAssertionErrorRejection);\n\n return undefined;\n}\n\nfunction ReadableByteStreamControllerClearPendingPullIntos(controller) {\n ReadableByteStreamControllerInvalidateBYOBRequest(controller);\n controller._pendingPullIntos = [];\n}\n\nfunction ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor) {\n assert(stream._state !== 'errored', 'state must not be errored');\n\n var done = false;\n if (stream._state === 'closed') {\n assert(pullIntoDescriptor.bytesFilled === 0);\n done = true;\n }\n\n var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);\n if (pullIntoDescriptor.readerType === 'default') {\n ReadableStreamFulfillReadRequest(stream, filledView, done);\n } else {\n assert(pullIntoDescriptor.readerType === 'byob');\n ReadableStreamFulfillReadIntoRequest(stream, filledView, done);\n }\n}\n\nfunction ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor) {\n var bytesFilled = pullIntoDescriptor.bytesFilled;\n var elementSize = pullIntoDescriptor.elementSize;\n\n assert(bytesFilled <= pullIntoDescriptor.byteLength);\n assert(bytesFilled % elementSize === 0);\n\n return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, bytesFilled / elementSize);\n}\n\nfunction ReadableByteStreamControllerEnqueueChunkToQueue(controller, buffer, byteOffset, byteLength) {\n controller._queue.push({ buffer: buffer, byteOffset: byteOffset, byteLength: byteLength });\n controller._queueTotalSize += byteLength;\n}\n\nfunction ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) {\n var elementSize = pullIntoDescriptor.elementSize;\n\n var currentAlignedBytes = pullIntoDescriptor.bytesFilled - pullIntoDescriptor.bytesFilled % elementSize;\n\n var maxBytesToCopy = Math.min(controller._queueTotalSize, pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled);\n var maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;\n var maxAlignedBytes = maxBytesFilled - maxBytesFilled % elementSize;\n\n var totalBytesToCopyRemaining = maxBytesToCopy;\n var ready = false;\n if (maxAlignedBytes > currentAlignedBytes) {\n totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;\n ready = true;\n }\n\n var queue = controller._queue;\n\n while (totalBytesToCopyRemaining > 0) {\n var headOfQueue = queue[0];\n\n var bytesToCopy = Math.min(totalBytesToCopyRemaining, headOfQueue.byteLength);\n\n var destStart = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;\n ArrayBufferCopy(pullIntoDescriptor.buffer, destStart, headOfQueue.buffer, headOfQueue.byteOffset, bytesToCopy);\n\n if (headOfQueue.byteLength === bytesToCopy) {\n queue.shift();\n } else {\n headOfQueue.byteOffset += bytesToCopy;\n headOfQueue.byteLength -= bytesToCopy;\n }\n controller._queueTotalSize -= bytesToCopy;\n\n ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesToCopy, pullIntoDescriptor);\n\n totalBytesToCopyRemaining -= bytesToCopy;\n }\n\n if (ready === false) {\n assert(controller._queueTotalSize === 0, 'queue must be empty');\n assert(pullIntoDescriptor.bytesFilled > 0);\n assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);\n }\n\n return ready;\n}\n\nfunction ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, size, pullIntoDescriptor) {\n assert(controller._pendingPullIntos.length === 0 || controller._pendingPullIntos[0] === pullIntoDescriptor);\n\n ReadableByteStreamControllerInvalidateBYOBRequest(controller);\n pullIntoDescriptor.bytesFilled += size;\n}\n\nfunction ReadableByteStreamControllerHandleQueueDrain(controller) {\n assert(controller._controlledReadableStream._state === 'readable');\n\n if (controller._queueTotalSize === 0 && controller._closeRequested === true) {\n ReadableStreamClose(controller._controlledReadableStream);\n } else {\n ReadableByteStreamControllerCallPullIfNeeded(controller);\n }\n}\n\nfunction ReadableByteStreamControllerInvalidateBYOBRequest(controller) {\n if (controller._byobRequest === undefined) {\n return;\n }\n\n controller._byobRequest._associatedReadableByteStreamController = undefined;\n controller._byobRequest._view = undefined;\n controller._byobRequest = undefined;\n}\n\nfunction ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller) {\n assert(controller._closeRequested === false);\n\n while (controller._pendingPullIntos.length > 0) {\n if (controller._queueTotalSize === 0) {\n return;\n }\n\n var pullIntoDescriptor = controller._pendingPullIntos[0];\n\n if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {\n ReadableByteStreamControllerShiftPendingPullInto(controller);\n\n ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);\n }\n }\n}\n\nfunction ReadableByteStreamControllerPullInto(controller, view) {\n var stream = controller._controlledReadableStream;\n\n var elementSize = 1;\n if (view.constructor !== DataView) {\n elementSize = view.constructor.BYTES_PER_ELEMENT;\n }\n\n var ctor = view.constructor;\n\n var pullIntoDescriptor = {\n buffer: view.buffer,\n byteOffset: view.byteOffset,\n byteLength: view.byteLength,\n bytesFilled: 0,\n elementSize: elementSize,\n ctor: ctor,\n readerType: 'byob'\n };\n\n if (controller._pendingPullIntos.length > 0) {\n pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);\n controller._pendingPullIntos.push(pullIntoDescriptor);\n\n // No ReadableByteStreamControllerCallPullIfNeeded() call since:\n // - No change happens on desiredSize\n // - The source has already been notified of that there's at least 1 pending read(view)\n\n return ReadableStreamAddReadIntoRequest(stream);\n }\n\n if (stream._state === 'closed') {\n var emptyView = new view.constructor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, 0);\n return Promise.resolve(CreateIterResultObject(emptyView, true));\n }\n\n if (controller._queueTotalSize > 0) {\n if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {\n var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);\n\n ReadableByteStreamControllerHandleQueueDrain(controller);\n\n return Promise.resolve(CreateIterResultObject(filledView, false));\n }\n\n if (controller._closeRequested === true) {\n var e = new TypeError('Insufficient bytes to fill elements in the given buffer');\n ReadableByteStreamControllerError(controller, e);\n\n return Promise.reject(e);\n }\n }\n\n pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);\n controller._pendingPullIntos.push(pullIntoDescriptor);\n\n var promise = ReadableStreamAddReadIntoRequest(stream);\n\n ReadableByteStreamControllerCallPullIfNeeded(controller);\n\n return promise;\n}\n\nfunction ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor) {\n firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);\n\n assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');\n\n var stream = controller._controlledReadableStream;\n if (ReadableStreamHasBYOBReader(stream) === true) {\n while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {\n var pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);\n ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);\n }\n }\n}\n\nfunction ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor) {\n if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {\n throw new RangeError('bytesWritten out of range');\n }\n\n ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);\n\n if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {\n // TODO: Figure out whether we should detach the buffer or not here.\n return;\n }\n\n ReadableByteStreamControllerShiftPendingPullInto(controller);\n\n var remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;\n if (remainderSize > 0) {\n var end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;\n var remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);\n ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);\n }\n\n pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);\n pullIntoDescriptor.bytesFilled -= remainderSize;\n ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);\n\n ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);\n}\n\nfunction ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {\n var firstDescriptor = controller._pendingPullIntos[0];\n\n var stream = controller._controlledReadableStream;\n\n if (stream._state === 'closed') {\n if (bytesWritten !== 0) {\n throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');\n }\n\n ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);\n } else {\n assert(stream._state === 'readable');\n\n ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);\n }\n}\n\nfunction ReadableByteStreamControllerShiftPendingPullInto(controller) {\n var descriptor = controller._pendingPullIntos.shift();\n ReadableByteStreamControllerInvalidateBYOBRequest(controller);\n return descriptor;\n}\n\nfunction ReadableByteStreamControllerShouldCallPull(controller) {\n var stream = controller._controlledReadableStream;\n\n if (stream._state !== 'readable') {\n return false;\n }\n\n if (controller._closeRequested === true) {\n return false;\n }\n\n if (controller._started === false) {\n return false;\n }\n\n if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {\n return true;\n }\n\n if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {\n return true;\n }\n\n if (ReadableByteStreamControllerGetDesiredSize(controller) > 0) {\n return true;\n }\n\n return false;\n}\n\n// A client of ReadableByteStreamController may use these functions directly to bypass state check.\n\nfunction ReadableByteStreamControllerClose(controller) {\n var stream = controller._controlledReadableStream;\n\n assert(controller._closeRequested === false);\n assert(stream._state === 'readable');\n\n if (controller._queueTotalSize > 0) {\n controller._closeRequested = true;\n\n return;\n }\n\n if (controller._pendingPullIntos.length > 0) {\n var firstPendingPullInto = controller._pendingPullIntos[0];\n if (firstPendingPullInto.bytesFilled > 0) {\n var e = new TypeError('Insufficient bytes to fill elements in the given buffer');\n ReadableByteStreamControllerError(controller, e);\n\n throw e;\n }\n }\n\n ReadableStreamClose(stream);\n}\n\nfunction ReadableByteStreamControllerEnqueue(controller, chunk) {\n var stream = controller._controlledReadableStream;\n\n assert(controller._closeRequested === false);\n assert(stream._state === 'readable');\n\n var buffer = chunk.buffer;\n var byteOffset = chunk.byteOffset;\n var byteLength = chunk.byteLength;\n var transferredBuffer = TransferArrayBuffer(buffer);\n\n if (ReadableStreamHasDefaultReader(stream) === true) {\n if (ReadableStreamGetNumReadRequests(stream) === 0) {\n ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);\n } else {\n assert(controller._queue.length === 0);\n\n var transferredView = new Uint8Array(transferredBuffer, byteOffset, byteLength);\n ReadableStreamFulfillReadRequest(stream, transferredView, false);\n }\n } else if (ReadableStreamHasBYOBReader(stream) === true) {\n // TODO: Ideally in this branch detaching should happen only if the buffer is not consumed fully.\n ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);\n ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);\n } else {\n assert(IsReadableStreamLocked(stream) === false, 'stream must not be locked');\n ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);\n }\n}\n\nfunction ReadableByteStreamControllerError(controller, e) {\n var stream = controller._controlledReadableStream;\n\n assert(stream._state === 'readable');\n\n ReadableByteStreamControllerClearPendingPullIntos(controller);\n\n ResetQueue(controller);\n ReadableStreamError(stream, e);\n}\n\nfunction ReadableByteStreamControllerGetDesiredSize(controller) {\n var stream = controller._controlledReadableStream;\n var state = stream._state;\n\n if (state === 'errored') {\n return null;\n }\n if (state === 'closed') {\n return 0;\n }\n\n return controller._strategyHWM - controller._queueTotalSize;\n}\n\nfunction ReadableByteStreamControllerRespond(controller, bytesWritten) {\n bytesWritten = Number(bytesWritten);\n if (IsFiniteNonNegativeNumber(bytesWritten) === false) {\n throw new RangeError('bytesWritten must be a finite');\n }\n\n assert(controller._pendingPullIntos.length > 0);\n\n ReadableByteStreamControllerRespondInternal(controller, bytesWritten);\n}\n\nfunction ReadableByteStreamControllerRespondWithNewView(controller, view) {\n assert(controller._pendingPullIntos.length > 0);\n\n var firstDescriptor = controller._pendingPullIntos[0];\n\n if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset) {\n throw new RangeError('The region specified by view does not match byobRequest');\n }\n if (firstDescriptor.byteLength !== view.byteLength) {\n throw new RangeError('The buffer of view has different capacity than byobRequest');\n }\n\n firstDescriptor.buffer = view.buffer;\n\n ReadableByteStreamControllerRespondInternal(controller, view.byteLength);\n}\n\n// Helper functions for the ReadableStream.\n\nfunction streamBrandCheckException(name) {\n return new TypeError('ReadableStream.prototype.' + name + ' can only be used on a ReadableStream');\n}\n\n// Helper functions for the readers.\n\nfunction readerLockException(name) {\n return new TypeError('Cannot ' + name + ' a stream using a released reader');\n}\n\n// Helper functions for the ReadableStreamDefaultReader.\n\nfunction defaultReaderBrandCheckException(name) {\n return new TypeError('ReadableStreamDefaultReader.prototype.' + name + ' can only be used on a ReadableStreamDefaultReader');\n}\n\nfunction defaultReaderClosedPromiseInitialize(reader) {\n reader._closedPromise = new Promise(function (resolve, reject) {\n reader._closedPromise_resolve = resolve;\n reader._closedPromise_reject = reject;\n });\n}\n\nfunction defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {\n reader._closedPromise = Promise.reject(reason);\n reader._closedPromise_resolve = undefined;\n reader._closedPromise_reject = undefined;\n}\n\nfunction defaultReaderClosedPromiseInitializeAsResolved(reader) {\n reader._closedPromise = Promise.resolve(undefined);\n reader._closedPromise_resolve = undefined;\n reader._closedPromise_reject = undefined;\n}\n\nfunction defaultReaderClosedPromiseReject(reader, reason) {\n assert(reader._closedPromise_resolve !== undefined);\n assert(reader._closedPromise_reject !== undefined);\n\n reader._closedPromise_reject(reason);\n reader._closedPromise_resolve = undefined;\n reader._closedPromise_reject = undefined;\n}\n\nfunction defaultReaderClosedPromiseResetToRejected(reader, reason) {\n assert(reader._closedPromise_resolve === undefined);\n assert(reader._closedPromise_reject === undefined);\n\n reader._closedPromise = Promise.reject(reason);\n}\n\nfunction defaultReaderClosedPromiseResolve(reader) {\n assert(reader._closedPromise_resolve !== undefined);\n assert(reader._closedPromise_reject !== undefined);\n\n reader._closedPromise_resolve(undefined);\n reader._closedPromise_resolve = undefined;\n reader._closedPromise_reject = undefined;\n}\n\n// Helper functions for the ReadableStreamDefaultReader.\n\nfunction byobReaderBrandCheckException(name) {\n return new TypeError('ReadableStreamBYOBReader.prototype.' + name + ' can only be used on a ReadableStreamBYOBReader');\n}\n\n// Helper functions for the ReadableStreamDefaultController.\n\nfunction defaultControllerBrandCheckException(name) {\n return new TypeError('ReadableStreamDefaultController.prototype.' + name + ' can only be used on a ReadableStreamDefaultController');\n}\n\n// Helper functions for the ReadableStreamBYOBRequest.\n\nfunction byobRequestBrandCheckException(name) {\n return new TypeError('ReadableStreamBYOBRequest.prototype.' + name + ' can only be used on a ReadableStreamBYOBRequest');\n}\n\n// Helper functions for the ReadableByteStreamController.\n\nfunction byteStreamControllerBrandCheckException(name) {\n return new TypeError('ReadableByteStreamController.prototype.' + name + ' can only be used on a ReadableByteStreamController');\n}\n\n// Helper function for ReadableStream pipeThrough\n\nfunction ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise) {\n try {\n // This relies on the brand-check that is enforced by Promise.prototype.then(). As with the rest of the reference\n // implementation, it doesn't attempt to do the right thing if someone has modified the global environment.\n Promise.prototype.then.call(promise, undefined, function () {});\n } catch (e) {\n // The brand check failed, therefore the internal slot is not present and there's nothing further to do.\n }\n}\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar transformStream = __w_pdfjs_require__(6);\nvar readableStream = __w_pdfjs_require__(4);\nvar writableStream = __w_pdfjs_require__(2);\n\nexports.TransformStream = transformStream.TransformStream;\nexports.ReadableStream = readableStream.ReadableStream;\nexports.IsReadableStreamDisturbed = readableStream.IsReadableStreamDisturbed;\nexports.ReadableStreamDefaultControllerClose = readableStream.ReadableStreamDefaultControllerClose;\nexports.ReadableStreamDefaultControllerEnqueue = readableStream.ReadableStreamDefaultControllerEnqueue;\nexports.ReadableStreamDefaultControllerError = readableStream.ReadableStreamDefaultControllerError;\nexports.ReadableStreamDefaultControllerGetDesiredSize = readableStream.ReadableStreamDefaultControllerGetDesiredSize;\nexports.AcquireWritableStreamDefaultWriter = writableStream.AcquireWritableStreamDefaultWriter;\nexports.IsWritableStream = writableStream.IsWritableStream;\nexports.IsWritableStreamLocked = writableStream.IsWritableStreamLocked;\nexports.WritableStream = writableStream.WritableStream;\nexports.WritableStreamAbort = writableStream.WritableStreamAbort;\nexports.WritableStreamDefaultControllerError = writableStream.WritableStreamDefaultControllerError;\nexports.WritableStreamDefaultWriterCloseWithErrorPropagation = writableStream.WritableStreamDefaultWriterCloseWithErrorPropagation;\nexports.WritableStreamDefaultWriterRelease = writableStream.WritableStreamDefaultWriterRelease;\nexports.WritableStreamDefaultWriterWrite = writableStream.WritableStreamDefaultWriterWrite;\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\n\"use strict\";\n\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar _require = __w_pdfjs_require__(1),\n assert = _require.assert;\n\nvar _require2 = __w_pdfjs_require__(0),\n InvokeOrNoop = _require2.InvokeOrNoop,\n PromiseInvokeOrPerformFallback = _require2.PromiseInvokeOrPerformFallback,\n PromiseInvokeOrNoop = _require2.PromiseInvokeOrNoop,\n typeIsObject = _require2.typeIsObject;\n\nvar _require3 = __w_pdfjs_require__(4),\n ReadableStream = _require3.ReadableStream,\n ReadableStreamDefaultControllerClose = _require3.ReadableStreamDefaultControllerClose,\n ReadableStreamDefaultControllerEnqueue = _require3.ReadableStreamDefaultControllerEnqueue,\n ReadableStreamDefaultControllerError = _require3.ReadableStreamDefaultControllerError,\n ReadableStreamDefaultControllerGetDesiredSize = _require3.ReadableStreamDefaultControllerGetDesiredSize;\n\nvar _require4 = __w_pdfjs_require__(2),\n WritableStream = _require4.WritableStream,\n WritableStreamDefaultControllerError = _require4.WritableStreamDefaultControllerError;\n\n// Methods on the transform stream controller object\n\nfunction TransformStreamCloseReadable(transformStream) {\n // console.log('TransformStreamCloseReadable()');\n\n if (transformStream._errored === true) {\n throw new TypeError('TransformStream is already errored');\n }\n\n if (transformStream._readableClosed === true) {\n throw new TypeError('Readable side is already closed');\n }\n\n TransformStreamCloseReadableInternal(transformStream);\n}\n\nfunction TransformStreamEnqueueToReadable(transformStream, chunk) {\n // console.log('TransformStreamEnqueueToReadable()');\n\n if (transformStream._errored === true) {\n throw new TypeError('TransformStream is already errored');\n }\n\n if (transformStream._readableClosed === true) {\n throw new TypeError('Readable side is already closed');\n }\n\n // We throttle transformer.transform invocation based on the backpressure of the ReadableStream, but we still\n // accept TransformStreamEnqueueToReadable() calls.\n\n var controller = transformStream._readableController;\n\n try {\n ReadableStreamDefaultControllerEnqueue(controller, chunk);\n } catch (e) {\n // This happens when readableStrategy.size() throws.\n // The ReadableStream has already errored itself.\n transformStream._readableClosed = true;\n TransformStreamErrorIfNeeded(transformStream, e);\n\n throw transformStream._storedError;\n }\n\n var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);\n var maybeBackpressure = desiredSize <= 0;\n\n if (maybeBackpressure === true && transformStream._backpressure === false) {\n // This allows pull() again. When desiredSize is 0, it's possible that a pull() will happen immediately (but\n // asynchronously) after this because of pending read()s and set _backpressure back to false.\n //\n // If pull() could be called from inside enqueue(), then this logic would be wrong. This cannot happen\n // because there is always a promise pending from start() or pull() when _backpressure is false.\n TransformStreamSetBackpressure(transformStream, true);\n }\n}\n\nfunction TransformStreamError(transformStream, e) {\n if (transformStream._errored === true) {\n throw new TypeError('TransformStream is already errored');\n }\n\n TransformStreamErrorInternal(transformStream, e);\n}\n\n// Abstract operations.\n\nfunction TransformStreamCloseReadableInternal(transformStream) {\n assert(transformStream._errored === false);\n assert(transformStream._readableClosed === false);\n\n try {\n ReadableStreamDefaultControllerClose(transformStream._readableController);\n } catch (e) {\n assert(false);\n }\n\n transformStream._readableClosed = true;\n}\n\nfunction TransformStreamErrorIfNeeded(transformStream, e) {\n if (transformStream._errored === false) {\n TransformStreamErrorInternal(transformStream, e);\n }\n}\n\nfunction TransformStreamErrorInternal(transformStream, e) {\n // console.log('TransformStreamErrorInternal()');\n\n assert(transformStream._errored === false);\n\n transformStream._errored = true;\n transformStream._storedError = e;\n\n if (transformStream._writableDone === false) {\n WritableStreamDefaultControllerError(transformStream._writableController, e);\n }\n if (transformStream._readableClosed === false) {\n ReadableStreamDefaultControllerError(transformStream._readableController, e);\n }\n}\n\n// Used for preventing the next write() call on TransformStreamSink until there\n// is no longer backpressure.\nfunction TransformStreamReadableReadyPromise(transformStream) {\n assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');\n\n if (transformStream._backpressure === false) {\n return Promise.resolve();\n }\n\n assert(transformStream._backpressure === true, '_backpressure should have been initialized');\n\n return transformStream._backpressureChangePromise;\n}\n\nfunction TransformStreamSetBackpressure(transformStream, backpressure) {\n // console.log(`TransformStreamSetBackpressure(${backpressure})`);\n\n // Passes also when called during construction.\n assert(transformStream._backpressure !== backpressure, 'TransformStreamSetBackpressure() should be called only when backpressure is changed');\n\n if (transformStream._backpressureChangePromise !== undefined) {\n // The fulfillment value is just for a sanity check.\n transformStream._backpressureChangePromise_resolve(backpressure);\n }\n\n transformStream._backpressureChangePromise = new Promise(function (resolve) {\n transformStream._backpressureChangePromise_resolve = resolve;\n });\n\n transformStream._backpressureChangePromise.then(function (resolution) {\n assert(resolution !== backpressure, '_backpressureChangePromise should be fulfilled only when backpressure is changed');\n });\n\n transformStream._backpressure = backpressure;\n}\n\nfunction TransformStreamDefaultTransform(chunk, transformStreamController) {\n var transformStream = transformStreamController._controlledTransformStream;\n TransformStreamEnqueueToReadable(transformStream, chunk);\n return Promise.resolve();\n}\n\nfunction TransformStreamTransform(transformStream, chunk) {\n // console.log('TransformStreamTransform()');\n\n assert(transformStream._errored === false);\n assert(transformStream._transforming === false);\n assert(transformStream._backpressure === false);\n\n transformStream._transforming = true;\n\n var transformer = transformStream._transformer;\n var controller = transformStream._transformStreamController;\n\n var transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller], TransformStreamDefaultTransform, [chunk, controller]);\n\n return transformPromise.then(function () {\n transformStream._transforming = false;\n\n return TransformStreamReadableReadyPromise(transformStream);\n }, function (e) {\n TransformStreamErrorIfNeeded(transformStream, e);\n return Promise.reject(e);\n });\n}\n\nfunction IsTransformStreamDefaultController(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {\n return false;\n }\n\n return true;\n}\n\nfunction IsTransformStream(x) {\n if (!typeIsObject(x)) {\n return false;\n }\n\n if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {\n return false;\n }\n\n return true;\n}\n\nvar TransformStreamSink = function () {\n function TransformStreamSink(transformStream, startPromise) {\n _classCallCheck(this, TransformStreamSink);\n\n this._transformStream = transformStream;\n this._startPromise = startPromise;\n }\n\n _createClass(TransformStreamSink, [{\n key: 'start',\n value: function start(c) {\n var transformStream = this._transformStream;\n\n transformStream._writableController = c;\n\n return this._startPromise.then(function () {\n return TransformStreamReadableReadyPromise(transformStream);\n });\n }\n }, {\n key: 'write',\n value: function write(chunk) {\n // console.log('TransformStreamSink.write()');\n\n var transformStream = this._transformStream;\n\n return TransformStreamTransform(transformStream, chunk);\n }\n }, {\n key: 'abort',\n value: function abort() {\n var transformStream = this._transformStream;\n transformStream._writableDone = true;\n TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));\n }\n }, {\n key: 'close',\n value: function close() {\n // console.log('TransformStreamSink.close()');\n\n var transformStream = this._transformStream;\n\n assert(transformStream._transforming === false);\n\n transformStream._writableDone = true;\n\n var flushPromise = PromiseInvokeOrNoop(transformStream._transformer, 'flush', [transformStream._transformStreamController]);\n // Return a promise that is fulfilled with undefined on success.\n return flushPromise.then(function () {\n if (transformStream._errored === true) {\n return Promise.reject(transformStream._storedError);\n }\n if (transformStream._readableClosed === false) {\n TransformStreamCloseReadableInternal(transformStream);\n }\n return Promise.resolve();\n }).catch(function (r) {\n TransformStreamErrorIfNeeded(transformStream, r);\n return Promise.reject(transformStream._storedError);\n });\n }\n }]);\n\n return TransformStreamSink;\n}();\n\nvar TransformStreamSource = function () {\n function TransformStreamSource(transformStream, startPromise) {\n _classCallCheck(this, TransformStreamSource);\n\n this._transformStream = transformStream;\n this._startPromise = startPromise;\n }\n\n _createClass(TransformStreamSource, [{\n key: 'start',\n value: function start(c) {\n var transformStream = this._transformStream;\n\n transformStream._readableController = c;\n\n return this._startPromise.then(function () {\n // Prevent the first pull() call until there is backpressure.\n\n assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');\n\n if (transformStream._backpressure === true) {\n return Promise.resolve();\n }\n\n assert(transformStream._backpressure === false, '_backpressure should have been initialized');\n\n return transformStream._backpressureChangePromise;\n });\n }\n }, {\n key: 'pull',\n value: function pull() {\n // console.log('TransformStreamSource.pull()');\n\n var transformStream = this._transformStream;\n\n // Invariant. Enforced by the promises returned by start() and pull().\n assert(transformStream._backpressure === true, 'pull() should be never called while _backpressure is false');\n\n assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');\n\n TransformStreamSetBackpressure(transformStream, false);\n\n // Prevent the next pull() call until there is backpressure.\n return transformStream._backpressureChangePromise;\n }\n }, {\n key: 'cancel',\n value: function cancel() {\n var transformStream = this._transformStream;\n transformStream._readableClosed = true;\n TransformStreamErrorInternal(transformStream, new TypeError('Readable side canceled'));\n }\n }]);\n\n return TransformStreamSource;\n}();\n\nvar TransformStreamDefaultController = function () {\n function TransformStreamDefaultController(transformStream) {\n _classCallCheck(this, TransformStreamDefaultController);\n\n if (IsTransformStream(transformStream) === false) {\n throw new TypeError('TransformStreamDefaultController can only be ' + 'constructed with a TransformStream instance');\n }\n\n if (transformStream._transformStreamController !== undefined) {\n throw new TypeError('TransformStreamDefaultController instances can ' + 'only be created by the TransformStream constructor');\n }\n\n this._controlledTransformStream = transformStream;\n }\n\n _createClass(TransformStreamDefaultController, [{\n key: 'enqueue',\n value: function enqueue(chunk) {\n if (IsTransformStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('enqueue');\n }\n\n TransformStreamEnqueueToReadable(this._controlledTransformStream, chunk);\n }\n }, {\n key: 'close',\n value: function close() {\n if (IsTransformStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('close');\n }\n\n TransformStreamCloseReadable(this._controlledTransformStream);\n }\n }, {\n key: 'error',\n value: function error(reason) {\n if (IsTransformStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('error');\n }\n\n TransformStreamError(this._controlledTransformStream, reason);\n }\n }, {\n key: 'desiredSize',\n get: function get() {\n if (IsTransformStreamDefaultController(this) === false) {\n throw defaultControllerBrandCheckException('desiredSize');\n }\n\n var transformStream = this._controlledTransformStream;\n var readableController = transformStream._readableController;\n\n return ReadableStreamDefaultControllerGetDesiredSize(readableController);\n }\n }]);\n\n return TransformStreamDefaultController;\n}();\n\nvar TransformStream = function () {\n function TransformStream() {\n var transformer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n _classCallCheck(this, TransformStream);\n\n this._transformer = transformer;\n var readableStrategy = transformer.readableStrategy,\n writableStrategy = transformer.writableStrategy;\n\n\n this._transforming = false;\n this._errored = false;\n this._storedError = undefined;\n\n this._writableController = undefined;\n this._readableController = undefined;\n this._transformStreamController = undefined;\n\n this._writableDone = false;\n this._readableClosed = false;\n\n this._backpressure = undefined;\n this._backpressureChangePromise = undefined;\n this._backpressureChangePromise_resolve = undefined;\n\n this._transformStreamController = new TransformStreamDefaultController(this);\n\n var startPromise_resolve = void 0;\n var startPromise = new Promise(function (resolve) {\n startPromise_resolve = resolve;\n });\n\n var source = new TransformStreamSource(this, startPromise);\n\n this._readable = new ReadableStream(source, readableStrategy);\n\n var sink = new TransformStreamSink(this, startPromise);\n\n this._writable = new WritableStream(sink, writableStrategy);\n\n assert(this._writableController !== undefined);\n assert(this._readableController !== undefined);\n\n var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(this._readableController);\n // Set _backpressure based on desiredSize. As there is no read() at this point, we can just interpret\n // desiredSize being non-positive as backpressure.\n TransformStreamSetBackpressure(this, desiredSize <= 0);\n\n var transformStream = this;\n var startResult = InvokeOrNoop(transformer, 'start', [transformStream._transformStreamController]);\n startPromise_resolve(startResult);\n startPromise.catch(function (e) {\n // The underlyingSink and underlyingSource will error the readable and writable ends on their own.\n if (transformStream._errored === false) {\n transformStream._errored = true;\n transformStream._storedError = e;\n }\n });\n }\n\n _createClass(TransformStream, [{\n key: 'readable',\n get: function get() {\n if (IsTransformStream(this) === false) {\n throw streamBrandCheckException('readable');\n }\n\n return this._readable;\n }\n }, {\n key: 'writable',\n get: function get() {\n if (IsTransformStream(this) === false) {\n throw streamBrandCheckException('writable');\n }\n\n return this._writable;\n }\n }]);\n\n return TransformStream;\n}();\n\nmodule.exports = { TransformStream: TransformStream };\n\n// Helper functions for the TransformStreamDefaultController.\n\nfunction defaultControllerBrandCheckException(name) {\n return new TypeError('TransformStreamDefaultController.prototype.' + name + ' can only be used on a TransformStreamDefaultController');\n}\n\n// Helper functions for the TransformStream.\n\nfunction streamBrandCheckException(name) {\n return new TypeError('TransformStream.prototype.' + name + ' can only be used on a TransformStream');\n}\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports, __w_pdfjs_require__) {\n\nmodule.exports = __w_pdfjs_require__(5);\n\n\n/***/ })\n/******/ ])));\n\n\n// WEBPACK FOOTER //\n// external/streams/streams-lib.js","/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n FONT_IDENTITY_MATRIX, IDENTITY_MATRIX, ImageKind, info, isArray,\n isLittleEndian, isNum, OPS, shadow, TextRenderingMode, Util, warn\n} from '../shared/util';\nimport { getShadingPatternFromIR, TilingPattern } from './pattern_helper';\nimport { WebGLUtils } from './webgl';\n\n//
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diff --git a/public/static/pdf_old/build/pdf.js b/public/static/pdf_old/build/pdf.js
new file mode 100644
index 000000000..aafb2eff7
--- /dev/null
+++ b/public/static/pdf_old/build/pdf.js
@@ -0,0 +1,13922 @@
+/* Copyright 2017 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function webpackUniversalModuleDefinition(root, factory) {
+ if(typeof exports === 'object' && typeof module === 'object')
+ module.exports = factory();
+ else if(typeof define === 'function' && define.amd)
+ define("pdfjs-dist/build/pdf", [], factory);
+ else if(typeof exports === 'object')
+ exports["pdfjs-dist/build/pdf"] = factory();
+ else
+ root["pdfjs-dist/build/pdf"] = root.pdfjsDistBuildPdf = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ // The module cache
+/******/ var installedModules = {};
+/******/
+/******/ // The require function
+/******/ function __w_pdfjs_require__(moduleId) {
+/******/
+/******/ // Check if module is in cache
+/******/ if(installedModules[moduleId]) {
+/******/ return installedModules[moduleId].exports;
+/******/ }
+/******/ // Create a new module (and put it into the cache)
+/******/ var module = installedModules[moduleId] = {
+/******/ i: moduleId,
+/******/ l: false,
+/******/ exports: {}
+/******/ };
+/******/
+/******/ // Execute the module function
+/******/ modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
+/******/
+/******/ // Flag the module as loaded
+/******/ module.l = true;
+/******/
+/******/ // Return the exports of the module
+/******/ return module.exports;
+/******/ }
+/******/
+/******/
+/******/ // expose the modules object (__webpack_modules__)
+/******/ __w_pdfjs_require__.m = modules;
+/******/
+/******/ // expose the module cache
+/******/ __w_pdfjs_require__.c = installedModules;
+/******/
+/******/ // identity function for calling harmony imports with the correct context
+/******/ __w_pdfjs_require__.i = function(value) { return value; };
+/******/
+/******/ // define getter function for harmony exports
+/******/ __w_pdfjs_require__.d = function(exports, name, getter) {
+/******/ if(!__w_pdfjs_require__.o(exports, name)) {
+/******/ Object.defineProperty(exports, name, {
+/******/ configurable: false,
+/******/ enumerable: true,
+/******/ get: getter
+/******/ });
+/******/ }
+/******/ };
+/******/
+/******/ // getDefaultExport function for compatibility with non-harmony modules
+/******/ __w_pdfjs_require__.n = function(module) {
+/******/ var getter = module && module.__esModule ?
+/******/ function getDefault() { return module['default']; } :
+/******/ function getModuleExports() { return module; };
+/******/ __w_pdfjs_require__.d(getter, 'a', getter);
+/******/ return getter;
+/******/ };
+/******/
+/******/ // Object.prototype.hasOwnProperty.call
+/******/ __w_pdfjs_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ // __webpack_public_path__
+/******/ __w_pdfjs_require__.p = "";
+/******/
+/******/ // Load entry module and return exports
+/******/ return __w_pdfjs_require__(__w_pdfjs_require__.s = 15);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.unreachable = exports.warn = exports.utf8StringToString = exports.stringToUTF8String = exports.stringToPDFString = exports.stringToBytes = exports.string32 = exports.shadow = exports.setVerbosityLevel = exports.ReadableStream = exports.removeNullCharacters = exports.readUint32 = exports.readUint16 = exports.readInt8 = exports.log2 = exports.loadJpegStream = exports.isEvalSupported = exports.isLittleEndian = exports.createValidAbsoluteUrl = exports.isSameOrigin = exports.isNodeJS = exports.isSpace = exports.isString = exports.isNum = exports.isInt = exports.isEmptyObj = exports.isBool = exports.isArrayBuffer = exports.isArray = exports.info = exports.globalScope = exports.getVerbosityLevel = exports.getLookupTableFactory = exports.deprecated = exports.createObjectURL = exports.createPromiseCapability = exports.createBlob = exports.bytesToString = exports.assert = exports.arraysToBytes = exports.arrayByteLength = exports.FormatError = exports.XRefParseException = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.StatTimer = exports.PasswordResponses = exports.PasswordException = exports.PageViewport = exports.NotImplementedException = exports.NativeImageDecoding = exports.MissingPDFException = exports.MissingDataException = exports.MessageHandler = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VERBOSITY_LEVELS = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = undefined;
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+__w_pdfjs_require__(16);
+
+var _streams_polyfill = __w_pdfjs_require__(17);
+
+var globalScope = typeof window !== 'undefined' && window.Math === Math ? window : typeof global !== 'undefined' && global.Math === Math ? global : typeof self !== 'undefined' && self.Math === Math ? self : undefined;
+var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
+var NativeImageDecoding = {
+ NONE: 'none',
+ DECODE: 'decode',
+ DISPLAY: 'display'
+};
+var TextRenderingMode = {
+ FILL: 0,
+ STROKE: 1,
+ FILL_STROKE: 2,
+ INVISIBLE: 3,
+ FILL_ADD_TO_PATH: 4,
+ STROKE_ADD_TO_PATH: 5,
+ FILL_STROKE_ADD_TO_PATH: 6,
+ ADD_TO_PATH: 7,
+ FILL_STROKE_MASK: 3,
+ ADD_TO_PATH_FLAG: 4
+};
+var ImageKind = {
+ GRAYSCALE_1BPP: 1,
+ RGB_24BPP: 2,
+ RGBA_32BPP: 3
+};
+var AnnotationType = {
+ TEXT: 1,
+ LINK: 2,
+ FREETEXT: 3,
+ LINE: 4,
+ SQUARE: 5,
+ CIRCLE: 6,
+ POLYGON: 7,
+ POLYLINE: 8,
+ HIGHLIGHT: 9,
+ UNDERLINE: 10,
+ SQUIGGLY: 11,
+ STRIKEOUT: 12,
+ STAMP: 13,
+ CARET: 14,
+ INK: 15,
+ POPUP: 16,
+ FILEATTACHMENT: 17,
+ SOUND: 18,
+ MOVIE: 19,
+ WIDGET: 20,
+ SCREEN: 21,
+ PRINTERMARK: 22,
+ TRAPNET: 23,
+ WATERMARK: 24,
+ THREED: 25,
+ REDACT: 26
+};
+var AnnotationFlag = {
+ INVISIBLE: 0x01,
+ HIDDEN: 0x02,
+ PRINT: 0x04,
+ NOZOOM: 0x08,
+ NOROTATE: 0x10,
+ NOVIEW: 0x20,
+ READONLY: 0x40,
+ LOCKED: 0x80,
+ TOGGLENOVIEW: 0x100,
+ LOCKEDCONTENTS: 0x200
+};
+var AnnotationFieldFlag = {
+ READONLY: 0x0000001,
+ REQUIRED: 0x0000002,
+ NOEXPORT: 0x0000004,
+ MULTILINE: 0x0001000,
+ PASSWORD: 0x0002000,
+ NOTOGGLETOOFF: 0x0004000,
+ RADIO: 0x0008000,
+ PUSHBUTTON: 0x0010000,
+ COMBO: 0x0020000,
+ EDIT: 0x0040000,
+ SORT: 0x0080000,
+ FILESELECT: 0x0100000,
+ MULTISELECT: 0x0200000,
+ DONOTSPELLCHECK: 0x0400000,
+ DONOTSCROLL: 0x0800000,
+ COMB: 0x1000000,
+ RICHTEXT: 0x2000000,
+ RADIOSINUNISON: 0x2000000,
+ COMMITONSELCHANGE: 0x4000000
+};
+var AnnotationBorderStyleType = {
+ SOLID: 1,
+ DASHED: 2,
+ BEVELED: 3,
+ INSET: 4,
+ UNDERLINE: 5
+};
+var StreamType = {
+ UNKNOWN: 0,
+ FLATE: 1,
+ LZW: 2,
+ DCT: 3,
+ JPX: 4,
+ JBIG: 5,
+ A85: 6,
+ AHX: 7,
+ CCF: 8,
+ RL: 9
+};
+var FontType = {
+ UNKNOWN: 0,
+ TYPE1: 1,
+ TYPE1C: 2,
+ CIDFONTTYPE0: 3,
+ CIDFONTTYPE0C: 4,
+ TRUETYPE: 5,
+ CIDFONTTYPE2: 6,
+ TYPE3: 7,
+ OPENTYPE: 8,
+ TYPE0: 9,
+ MMTYPE1: 10
+};
+var VERBOSITY_LEVELS = {
+ errors: 0,
+ warnings: 1,
+ infos: 5
+};
+var CMapCompressionType = {
+ NONE: 0,
+ BINARY: 1,
+ STREAM: 2
+};
+var OPS = {
+ dependency: 1,
+ setLineWidth: 2,
+ setLineCap: 3,
+ setLineJoin: 4,
+ setMiterLimit: 5,
+ setDash: 6,
+ setRenderingIntent: 7,
+ setFlatness: 8,
+ setGState: 9,
+ save: 10,
+ restore: 11,
+ transform: 12,
+ moveTo: 13,
+ lineTo: 14,
+ curveTo: 15,
+ curveTo2: 16,
+ curveTo3: 17,
+ closePath: 18,
+ rectangle: 19,
+ stroke: 20,
+ closeStroke: 21,
+ fill: 22,
+ eoFill: 23,
+ fillStroke: 24,
+ eoFillStroke: 25,
+ closeFillStroke: 26,
+ closeEOFillStroke: 27,
+ endPath: 28,
+ clip: 29,
+ eoClip: 30,
+ beginText: 31,
+ endText: 32,
+ setCharSpacing: 33,
+ setWordSpacing: 34,
+ setHScale: 35,
+ setLeading: 36,
+ setFont: 37,
+ setTextRenderingMode: 38,
+ setTextRise: 39,
+ moveText: 40,
+ setLeadingMoveText: 41,
+ setTextMatrix: 42,
+ nextLine: 43,
+ showText: 44,
+ showSpacedText: 45,
+ nextLineShowText: 46,
+ nextLineSetSpacingShowText: 47,
+ setCharWidth: 48,
+ setCharWidthAndBounds: 49,
+ setStrokeColorSpace: 50,
+ setFillColorSpace: 51,
+ setStrokeColor: 52,
+ setStrokeColorN: 53,
+ setFillColor: 54,
+ setFillColorN: 55,
+ setStrokeGray: 56,
+ setFillGray: 57,
+ setStrokeRGBColor: 58,
+ setFillRGBColor: 59,
+ setStrokeCMYKColor: 60,
+ setFillCMYKColor: 61,
+ shadingFill: 62,
+ beginInlineImage: 63,
+ beginImageData: 64,
+ endInlineImage: 65,
+ paintXObject: 66,
+ markPoint: 67,
+ markPointProps: 68,
+ beginMarkedContent: 69,
+ beginMarkedContentProps: 70,
+ endMarkedContent: 71,
+ beginCompat: 72,
+ endCompat: 73,
+ paintFormXObjectBegin: 74,
+ paintFormXObjectEnd: 75,
+ beginGroup: 76,
+ endGroup: 77,
+ beginAnnotations: 78,
+ endAnnotations: 79,
+ beginAnnotation: 80,
+ endAnnotation: 81,
+ paintJpegXObject: 82,
+ paintImageMaskXObject: 83,
+ paintImageMaskXObjectGroup: 84,
+ paintImageXObject: 85,
+ paintInlineImageXObject: 86,
+ paintInlineImageXObjectGroup: 87,
+ paintImageXObjectRepeat: 88,
+ paintImageMaskXObjectRepeat: 89,
+ paintSolidColorImageMask: 90,
+ constructPath: 91
+};
+var verbosity = VERBOSITY_LEVELS.warnings;
+function setVerbosityLevel(level) {
+ verbosity = level;
+}
+function getVerbosityLevel() {
+ return verbosity;
+}
+function info(msg) {
+ if (verbosity >= VERBOSITY_LEVELS.infos) {
+ console.log('Info: ' + msg);
+ }
+}
+function warn(msg) {
+ if (verbosity >= VERBOSITY_LEVELS.warnings) {
+ console.log('Warning: ' + msg);
+ }
+}
+function deprecated(details) {
+ console.log('Deprecated API usage: ' + details);
+}
+function unreachable(msg) {
+ throw new Error(msg);
+}
+function assert(cond, msg) {
+ if (!cond) {
+ unreachable(msg);
+ }
+}
+var UNSUPPORTED_FEATURES = {
+ unknown: 'unknown',
+ forms: 'forms',
+ javaScript: 'javaScript',
+ smask: 'smask',
+ shadingPattern: 'shadingPattern',
+ font: 'font'
+};
+function isSameOrigin(baseUrl, otherUrl) {
+ try {
+ var base = new URL(baseUrl);
+ if (!base.origin || base.origin === 'null') {
+ return false;
+ }
+ } catch (e) {
+ return false;
+ }
+ var other = new URL(otherUrl, base);
+ return base.origin === other.origin;
+}
+function isValidProtocol(url) {
+ if (!url) {
+ return false;
+ }
+ switch (url.protocol) {
+ case 'http:':
+ case 'https:':
+ case 'ftp:':
+ case 'mailto:':
+ case 'tel:':
+ return true;
+ default:
+ return false;
+ }
+}
+function createValidAbsoluteUrl(url, baseUrl) {
+ if (!url) {
+ return null;
+ }
+ try {
+ var absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
+ if (isValidProtocol(absoluteUrl)) {
+ return absoluteUrl;
+ }
+ } catch (ex) {}
+ return null;
+}
+function shadow(obj, prop, value) {
+ Object.defineProperty(obj, prop, {
+ value: value,
+ enumerable: true,
+ configurable: true,
+ writable: false
+ });
+ return value;
+}
+function getLookupTableFactory(initializer) {
+ var lookup;
+ return function () {
+ if (initializer) {
+ lookup = Object.create(null);
+ initializer(lookup);
+ initializer = null;
+ }
+ return lookup;
+ };
+}
+var PasswordResponses = {
+ NEED_PASSWORD: 1,
+ INCORRECT_PASSWORD: 2
+};
+var PasswordException = function PasswordExceptionClosure() {
+ function PasswordException(msg, code) {
+ this.name = 'PasswordException';
+ this.message = msg;
+ this.code = code;
+ }
+ PasswordException.prototype = new Error();
+ PasswordException.constructor = PasswordException;
+ return PasswordException;
+}();
+var UnknownErrorException = function UnknownErrorExceptionClosure() {
+ function UnknownErrorException(msg, details) {
+ this.name = 'UnknownErrorException';
+ this.message = msg;
+ this.details = details;
+ }
+ UnknownErrorException.prototype = new Error();
+ UnknownErrorException.constructor = UnknownErrorException;
+ return UnknownErrorException;
+}();
+var InvalidPDFException = function InvalidPDFExceptionClosure() {
+ function InvalidPDFException(msg) {
+ this.name = 'InvalidPDFException';
+ this.message = msg;
+ }
+ InvalidPDFException.prototype = new Error();
+ InvalidPDFException.constructor = InvalidPDFException;
+ return InvalidPDFException;
+}();
+var MissingPDFException = function MissingPDFExceptionClosure() {
+ function MissingPDFException(msg) {
+ this.name = 'MissingPDFException';
+ this.message = msg;
+ }
+ MissingPDFException.prototype = new Error();
+ MissingPDFException.constructor = MissingPDFException;
+ return MissingPDFException;
+}();
+var UnexpectedResponseException = function UnexpectedResponseExceptionClosure() {
+ function UnexpectedResponseException(msg, status) {
+ this.name = 'UnexpectedResponseException';
+ this.message = msg;
+ this.status = status;
+ }
+ UnexpectedResponseException.prototype = new Error();
+ UnexpectedResponseException.constructor = UnexpectedResponseException;
+ return UnexpectedResponseException;
+}();
+var NotImplementedException = function NotImplementedExceptionClosure() {
+ function NotImplementedException(msg) {
+ this.message = msg;
+ }
+ NotImplementedException.prototype = new Error();
+ NotImplementedException.prototype.name = 'NotImplementedException';
+ NotImplementedException.constructor = NotImplementedException;
+ return NotImplementedException;
+}();
+var MissingDataException = function MissingDataExceptionClosure() {
+ function MissingDataException(begin, end) {
+ this.begin = begin;
+ this.end = end;
+ this.message = 'Missing data [' + begin + ', ' + end + ')';
+ }
+ MissingDataException.prototype = new Error();
+ MissingDataException.prototype.name = 'MissingDataException';
+ MissingDataException.constructor = MissingDataException;
+ return MissingDataException;
+}();
+var XRefParseException = function XRefParseExceptionClosure() {
+ function XRefParseException(msg) {
+ this.message = msg;
+ }
+ XRefParseException.prototype = new Error();
+ XRefParseException.prototype.name = 'XRefParseException';
+ XRefParseException.constructor = XRefParseException;
+ return XRefParseException;
+}();
+var FormatError = function FormatErrorClosure() {
+ function FormatError(msg) {
+ this.message = msg;
+ }
+ FormatError.prototype = new Error();
+ FormatError.prototype.name = 'FormatError';
+ FormatError.constructor = FormatError;
+ return FormatError;
+}();
+var AbortException = function AbortExceptionClosure() {
+ function AbortException(msg) {
+ this.name = 'AbortException';
+ this.message = msg;
+ }
+ AbortException.prototype = new Error();
+ AbortException.constructor = AbortException;
+ return AbortException;
+}();
+var NullCharactersRegExp = /\x00/g;
+function removeNullCharacters(str) {
+ if (typeof str !== 'string') {
+ warn('The argument for removeNullCharacters must be a string.');
+ return str;
+ }
+ return str.replace(NullCharactersRegExp, '');
+}
+function bytesToString(bytes) {
+ assert(bytes !== null && (typeof bytes === 'undefined' ? 'undefined' : _typeof(bytes)) === 'object' && bytes.length !== undefined, 'Invalid argument for bytesToString');
+ var length = bytes.length;
+ var MAX_ARGUMENT_COUNT = 8192;
+ if (length < MAX_ARGUMENT_COUNT) {
+ return String.fromCharCode.apply(null, bytes);
+ }
+ var strBuf = [];
+ for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
+ var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
+ var chunk = bytes.subarray(i, chunkEnd);
+ strBuf.push(String.fromCharCode.apply(null, chunk));
+ }
+ return strBuf.join('');
+}
+function stringToBytes(str) {
+ assert(typeof str === 'string', 'Invalid argument for stringToBytes');
+ var length = str.length;
+ var bytes = new Uint8Array(length);
+ for (var i = 0; i < length; ++i) {
+ bytes[i] = str.charCodeAt(i) & 0xFF;
+ }
+ return bytes;
+}
+function arrayByteLength(arr) {
+ if (arr.length !== undefined) {
+ return arr.length;
+ }
+ assert(arr.byteLength !== undefined);
+ return arr.byteLength;
+}
+function arraysToBytes(arr) {
+ if (arr.length === 1 && arr[0] instanceof Uint8Array) {
+ return arr[0];
+ }
+ var resultLength = 0;
+ var i,
+ ii = arr.length;
+ var item, itemLength;
+ for (i = 0; i < ii; i++) {
+ item = arr[i];
+ itemLength = arrayByteLength(item);
+ resultLength += itemLength;
+ }
+ var pos = 0;
+ var data = new Uint8Array(resultLength);
+ for (i = 0; i < ii; i++) {
+ item = arr[i];
+ if (!(item instanceof Uint8Array)) {
+ if (typeof item === 'string') {
+ item = stringToBytes(item);
+ } else {
+ item = new Uint8Array(item);
+ }
+ }
+ itemLength = item.byteLength;
+ data.set(item, pos);
+ pos += itemLength;
+ }
+ return data;
+}
+function string32(value) {
+ return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
+}
+function log2(x) {
+ var n = 1,
+ i = 0;
+ while (x > n) {
+ n <<= 1;
+ i++;
+ }
+ return i;
+}
+function readInt8(data, start) {
+ return data[start] << 24 >> 24;
+}
+function readUint16(data, offset) {
+ return data[offset] << 8 | data[offset + 1];
+}
+function readUint32(data, offset) {
+ return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
+}
+function isLittleEndian() {
+ var buffer8 = new Uint8Array(4);
+ buffer8[0] = 1;
+ var view32 = new Uint32Array(buffer8.buffer, 0, 1);
+ return view32[0] === 1;
+}
+function isEvalSupported() {
+ try {
+ new Function('');
+ return true;
+ } catch (e) {
+ return false;
+ }
+}
+var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
+var Util = function UtilClosure() {
+ function Util() {}
+ var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];
+ Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
+ rgbBuf[1] = r;
+ rgbBuf[3] = g;
+ rgbBuf[5] = b;
+ return rgbBuf.join('');
+ };
+ Util.transform = function Util_transform(m1, m2) {
+ return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
+ };
+ Util.applyTransform = function Util_applyTransform(p, m) {
+ var xt = p[0] * m[0] + p[1] * m[2] + m[4];
+ var yt = p[0] * m[1] + p[1] * m[3] + m[5];
+ return [xt, yt];
+ };
+ Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
+ var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
+ return [xt, yt];
+ };
+ Util.getAxialAlignedBoundingBox = function Util_getAxialAlignedBoundingBox(r, m) {
+ var p1 = Util.applyTransform(r, m);
+ var p2 = Util.applyTransform(r.slice(2, 4), m);
+ var p3 = Util.applyTransform([r[0], r[3]], m);
+ var p4 = Util.applyTransform([r[2], r[1]], m);
+ return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
+ };
+ Util.inverseTransform = function Util_inverseTransform(m) {
+ var d = m[0] * m[3] - m[1] * m[2];
+ return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
+ };
+ Util.apply3dTransform = function Util_apply3dTransform(m, v) {
+ return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
+ };
+ Util.singularValueDecompose2dScale = function Util_singularValueDecompose2dScale(m) {
+ var transpose = [m[0], m[2], m[1], m[3]];
+ var a = m[0] * transpose[0] + m[1] * transpose[2];
+ var b = m[0] * transpose[1] + m[1] * transpose[3];
+ var c = m[2] * transpose[0] + m[3] * transpose[2];
+ var d = m[2] * transpose[1] + m[3] * transpose[3];
+ var first = (a + d) / 2;
+ var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
+ var sx = first + second || 1;
+ var sy = first - second || 1;
+ return [Math.sqrt(sx), Math.sqrt(sy)];
+ };
+ Util.normalizeRect = function Util_normalizeRect(rect) {
+ var r = rect.slice(0);
+ if (rect[0] > rect[2]) {
+ r[0] = rect[2];
+ r[2] = rect[0];
+ }
+ if (rect[1] > rect[3]) {
+ r[1] = rect[3];
+ r[3] = rect[1];
+ }
+ return r;
+ };
+ Util.intersect = function Util_intersect(rect1, rect2) {
+ function compare(a, b) {
+ return a - b;
+ }
+ var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
+ orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
+ result = [];
+ rect1 = Util.normalizeRect(rect1);
+ rect2 = Util.normalizeRect(rect2);
+ if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
+ result[0] = orderedX[1];
+ result[2] = orderedX[2];
+ } else {
+ return false;
+ }
+ if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
+ result[1] = orderedY[1];
+ result[3] = orderedY[2];
+ } else {
+ return false;
+ }
+ return result;
+ };
+ Util.sign = function Util_sign(num) {
+ return num < 0 ? -1 : 1;
+ };
+ var ROMAN_NUMBER_MAP = ['', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'];
+ Util.toRoman = function Util_toRoman(number, lowerCase) {
+ assert(isInt(number) && number > 0, 'The number should be a positive integer.');
+ var pos,
+ romanBuf = [];
+ while (number >= 1000) {
+ number -= 1000;
+ romanBuf.push('M');
+ }
+ pos = number / 100 | 0;
+ number %= 100;
+ romanBuf.push(ROMAN_NUMBER_MAP[pos]);
+ pos = number / 10 | 0;
+ number %= 10;
+ romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
+ romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
+ var romanStr = romanBuf.join('');
+ return lowerCase ? romanStr.toLowerCase() : romanStr;
+ };
+ Util.appendToArray = function Util_appendToArray(arr1, arr2) {
+ Array.prototype.push.apply(arr1, arr2);
+ };
+ Util.prependToArray = function Util_prependToArray(arr1, arr2) {
+ Array.prototype.unshift.apply(arr1, arr2);
+ };
+ Util.extendObj = function extendObj(obj1, obj2) {
+ for (var key in obj2) {
+ obj1[key] = obj2[key];
+ }
+ };
+ Util.getInheritableProperty = function Util_getInheritableProperty(dict, name, getArray) {
+ while (dict && !dict.has(name)) {
+ dict = dict.get('Parent');
+ }
+ if (!dict) {
+ return null;
+ }
+ return getArray ? dict.getArray(name) : dict.get(name);
+ };
+ Util.inherit = function Util_inherit(sub, base, prototype) {
+ sub.prototype = Object.create(base.prototype);
+ sub.prototype.constructor = sub;
+ for (var prop in prototype) {
+ sub.prototype[prop] = prototype[prop];
+ }
+ };
+ Util.loadScript = function Util_loadScript(src, callback) {
+ var script = document.createElement('script');
+ var loaded = false;
+ script.setAttribute('src', src);
+ if (callback) {
+ script.onload = function () {
+ if (!loaded) {
+ callback();
+ }
+ loaded = true;
+ };
+ }
+ document.getElementsByTagName('head')[0].appendChild(script);
+ };
+ return Util;
+}();
+var PageViewport = function PageViewportClosure() {
+ function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {
+ this.viewBox = viewBox;
+ this.scale = scale;
+ this.rotation = rotation;
+ this.offsetX = offsetX;
+ this.offsetY = offsetY;
+ var centerX = (viewBox[2] + viewBox[0]) / 2;
+ var centerY = (viewBox[3] + viewBox[1]) / 2;
+ var rotateA, rotateB, rotateC, rotateD;
+ rotation = rotation % 360;
+ rotation = rotation < 0 ? rotation + 360 : rotation;
+ switch (rotation) {
+ case 180:
+ rotateA = -1;
+ rotateB = 0;
+ rotateC = 0;
+ rotateD = 1;
+ break;
+ case 90:
+ rotateA = 0;
+ rotateB = 1;
+ rotateC = 1;
+ rotateD = 0;
+ break;
+ case 270:
+ rotateA = 0;
+ rotateB = -1;
+ rotateC = -1;
+ rotateD = 0;
+ break;
+ default:
+ rotateA = 1;
+ rotateB = 0;
+ rotateC = 0;
+ rotateD = -1;
+ break;
+ }
+ if (dontFlip) {
+ rotateC = -rotateC;
+ rotateD = -rotateD;
+ }
+ var offsetCanvasX, offsetCanvasY;
+ var width, height;
+ if (rotateA === 0) {
+ offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
+ width = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ height = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ } else {
+ offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
+ offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
+ width = Math.abs(viewBox[2] - viewBox[0]) * scale;
+ height = Math.abs(viewBox[3] - viewBox[1]) * scale;
+ }
+ this.transform = [rotateA * scale, rotateB * scale, rotateC * scale, rotateD * scale, offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY, offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY];
+ this.width = width;
+ this.height = height;
+ this.fontScale = scale;
+ }
+ PageViewport.prototype = {
+ clone: function PageViewPort_clone(args) {
+ args = args || {};
+ var scale = 'scale' in args ? args.scale : this.scale;
+ var rotation = 'rotation' in args ? args.rotation : this.rotation;
+ return new PageViewport(this.viewBox.slice(), scale, rotation, this.offsetX, this.offsetY, args.dontFlip);
+ },
+ convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {
+ return Util.applyTransform([x, y], this.transform);
+ },
+ convertToViewportRectangle: function PageViewport_convertToViewportRectangle(rect) {
+ var tl = Util.applyTransform([rect[0], rect[1]], this.transform);
+ var br = Util.applyTransform([rect[2], rect[3]], this.transform);
+ return [tl[0], tl[1], br[0], br[1]];
+ },
+ convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {
+ return Util.applyInverseTransform([x, y], this.transform);
+ }
+ };
+ return PageViewport;
+}();
+var PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C, 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160, 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC];
+function stringToPDFString(str) {
+ var i,
+ n = str.length,
+ strBuf = [];
+ if (str[0] === '\xFE' && str[1] === '\xFF') {
+ for (i = 2; i < n; i += 2) {
+ strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
+ }
+ } else {
+ for (i = 0; i < n; ++i) {
+ var code = PDFStringTranslateTable[str.charCodeAt(i)];
+ strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
+ }
+ }
+ return strBuf.join('');
+}
+function stringToUTF8String(str) {
+ return decodeURIComponent(escape(str));
+}
+function utf8StringToString(str) {
+ return unescape(encodeURIComponent(str));
+}
+function isEmptyObj(obj) {
+ for (var key in obj) {
+ return false;
+ }
+ return true;
+}
+function isBool(v) {
+ return typeof v === 'boolean';
+}
+function isInt(v) {
+ return typeof v === 'number' && (v | 0) === v;
+}
+function isNum(v) {
+ return typeof v === 'number';
+}
+function isString(v) {
+ return typeof v === 'string';
+}
+function isArray(v) {
+ return v instanceof Array;
+}
+function isArrayBuffer(v) {
+ return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && v !== null && v.byteLength !== undefined;
+}
+function isSpace(ch) {
+ return ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A;
+}
+function isNodeJS() {
+ return (typeof process === 'undefined' ? 'undefined' : _typeof(process)) === 'object' && process + '' === '[object process]';
+}
+function createPromiseCapability() {
+ var capability = {};
+ capability.promise = new Promise(function (resolve, reject) {
+ capability.resolve = resolve;
+ capability.reject = reject;
+ });
+ return capability;
+}
+var StatTimer = function StatTimerClosure() {
+ function rpad(str, pad, length) {
+ while (str.length < length) {
+ str += pad;
+ }
+ return str;
+ }
+ function StatTimer() {
+ this.started = Object.create(null);
+ this.times = [];
+ this.enabled = true;
+ }
+ StatTimer.prototype = {
+ time: function StatTimer_time(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (name in this.started) {
+ warn('Timer is already running for ' + name);
+ }
+ this.started[name] = Date.now();
+ },
+ timeEnd: function StatTimer_timeEnd(name) {
+ if (!this.enabled) {
+ return;
+ }
+ if (!(name in this.started)) {
+ warn('Timer has not been started for ' + name);
+ }
+ this.times.push({
+ 'name': name,
+ 'start': this.started[name],
+ 'end': Date.now()
+ });
+ delete this.started[name];
+ },
+ toString: function StatTimer_toString() {
+ var i, ii;
+ var times = this.times;
+ var out = '';
+ var longest = 0;
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var name = times[i]['name'];
+ if (name.length > longest) {
+ longest = name.length;
+ }
+ }
+ for (i = 0, ii = times.length; i < ii; ++i) {
+ var span = times[i];
+ var duration = span.end - span.start;
+ out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\n';
+ }
+ return out;
+ }
+ };
+ return StatTimer;
+}();
+var createBlob = function createBlob(data, contentType) {
+ if (typeof Blob !== 'undefined') {
+ return new Blob([data], { type: contentType });
+ }
+ throw new Error('The "Blob" constructor is not supported.');
+};
+var createObjectURL = function createObjectURLClosure() {
+ var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+ return function createObjectURL(data, contentType) {
+ var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+
+ if (!forceDataSchema && URL.createObjectURL) {
+ var blob = createBlob(data, contentType);
+ return URL.createObjectURL(blob);
+ }
+ var buffer = 'data:' + contentType + ';base64,';
+ for (var i = 0, ii = data.length; i < ii; i += 3) {
+ var b1 = data[i] & 0xFF;
+ var b2 = data[i + 1] & 0xFF;
+ var b3 = data[i + 2] & 0xFF;
+ var d1 = b1 >> 2,
+ d2 = (b1 & 3) << 4 | b2 >> 4;
+ var d3 = i + 1 < ii ? (b2 & 0xF) << 2 | b3 >> 6 : 64;
+ var d4 = i + 2 < ii ? b3 & 0x3F : 64;
+ buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
+ }
+ return buffer;
+ };
+}();
+function resolveCall(fn, args) {
+ var thisArg = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+
+ if (!fn) {
+ return Promise.resolve(undefined);
+ }
+ return new Promise(function (resolve, reject) {
+ resolve(fn.apply(thisArg, args));
+ });
+}
+function wrapReason(reason) {
+ if ((typeof reason === 'undefined' ? 'undefined' : _typeof(reason)) !== 'object') {
+ return reason;
+ }
+ switch (reason.name) {
+ case 'AbortException':
+ return new AbortException(reason.message);
+ case 'MissingPDFException':
+ return new MissingPDFException(reason.message);
+ case 'UnexpectedResponseException':
+ return new UnexpectedResponseException(reason.message, reason.status);
+ default:
+ return new UnknownErrorException(reason.message, reason.details);
+ }
+}
+function resolveOrReject(capability, success, reason) {
+ if (success) {
+ capability.resolve();
+ } else {
+ capability.reject(reason);
+ }
+}
+function finalize(promise) {
+ return Promise.resolve(promise).catch(function () {});
+}
+function MessageHandler(sourceName, targetName, comObj) {
+ var _this = this;
+
+ this.sourceName = sourceName;
+ this.targetName = targetName;
+ this.comObj = comObj;
+ this.callbackId = 1;
+ this.streamId = 1;
+ this.postMessageTransfers = true;
+ this.streamSinks = Object.create(null);
+ this.streamControllers = Object.create(null);
+ var callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
+ var ah = this.actionHandler = Object.create(null);
+ this._onComObjOnMessage = function (event) {
+ var data = event.data;
+ if (data.targetName !== _this.sourceName) {
+ return;
+ }
+ if (data.stream) {
+ _this._processStreamMessage(data);
+ } else if (data.isReply) {
+ var callbackId = data.callbackId;
+ if (data.callbackId in callbacksCapabilities) {
+ var callback = callbacksCapabilities[callbackId];
+ delete callbacksCapabilities[callbackId];
+ if ('error' in data) {
+ callback.reject(wrapReason(data.error));
+ } else {
+ callback.resolve(data.data);
+ }
+ } else {
+ throw new Error('Cannot resolve callback ' + callbackId);
+ }
+ } else if (data.action in ah) {
+ var action = ah[data.action];
+ if (data.callbackId) {
+ var _sourceName = _this.sourceName;
+ var _targetName = data.sourceName;
+ Promise.resolve().then(function () {
+ return action[0].call(action[1], data.data);
+ }).then(function (result) {
+ comObj.postMessage({
+ sourceName: _sourceName,
+ targetName: _targetName,
+ isReply: true,
+ callbackId: data.callbackId,
+ data: result
+ });
+ }, function (reason) {
+ if (reason instanceof Error) {
+ reason = reason + '';
+ }
+ comObj.postMessage({
+ sourceName: _sourceName,
+ targetName: _targetName,
+ isReply: true,
+ callbackId: data.callbackId,
+ error: reason
+ });
+ });
+ } else if (data.streamId) {
+ _this._createStreamSink(data);
+ } else {
+ action[0].call(action[1], data.data);
+ }
+ } else {
+ throw new Error('Unknown action from worker: ' + data.action);
+ }
+ };
+ comObj.addEventListener('message', this._onComObjOnMessage);
+}
+MessageHandler.prototype = {
+ on: function on(actionName, handler, scope) {
+ var ah = this.actionHandler;
+ if (ah[actionName]) {
+ throw new Error('There is already an actionName called "' + actionName + '"');
+ }
+ ah[actionName] = [handler, scope];
+ },
+ send: function send(actionName, data, transfers) {
+ var message = {
+ sourceName: this.sourceName,
+ targetName: this.targetName,
+ action: actionName,
+ data: data
+ };
+ this.postMessage(message, transfers);
+ },
+ sendWithPromise: function sendWithPromise(actionName, data, transfers) {
+ var callbackId = this.callbackId++;
+ var message = {
+ sourceName: this.sourceName,
+ targetName: this.targetName,
+ action: actionName,
+ data: data,
+ callbackId: callbackId
+ };
+ var capability = createPromiseCapability();
+ this.callbacksCapabilities[callbackId] = capability;
+ try {
+ this.postMessage(message, transfers);
+ } catch (e) {
+ capability.reject(e);
+ }
+ return capability.promise;
+ },
+ sendWithStream: function sendWithStream(actionName, data, queueingStrategy, transfers) {
+ var _this2 = this;
+
+ var streamId = this.streamId++;
+ var sourceName = this.sourceName;
+ var targetName = this.targetName;
+ return new _streams_polyfill.ReadableStream({
+ start: function start(controller) {
+ var startCapability = createPromiseCapability();
+ _this2.streamControllers[streamId] = {
+ controller: controller,
+ startCall: startCapability,
+ isClosed: false
+ };
+ _this2.postMessage({
+ sourceName: sourceName,
+ targetName: targetName,
+ action: actionName,
+ streamId: streamId,
+ data: data,
+ desiredSize: controller.desiredSize
+ });
+ return startCapability.promise;
+ },
+ pull: function pull(controller) {
+ var pullCapability = createPromiseCapability();
+ _this2.streamControllers[streamId].pullCall = pullCapability;
+ _this2.postMessage({
+ sourceName: sourceName,
+ targetName: targetName,
+ stream: 'pull',
+ streamId: streamId,
+ desiredSize: controller.desiredSize
+ });
+ return pullCapability.promise;
+ },
+ cancel: function cancel(reason) {
+ var cancelCapability = createPromiseCapability();
+ _this2.streamControllers[streamId].cancelCall = cancelCapability;
+ _this2.streamControllers[streamId].isClosed = true;
+ _this2.postMessage({
+ sourceName: sourceName,
+ targetName: targetName,
+ stream: 'cancel',
+ reason: reason,
+ streamId: streamId
+ });
+ return cancelCapability.promise;
+ }
+ }, queueingStrategy);
+ },
+ _createStreamSink: function _createStreamSink(data) {
+ var _this3 = this;
+
+ var self = this;
+ var action = this.actionHandler[data.action];
+ var streamId = data.streamId;
+ var desiredSize = data.desiredSize;
+ var sourceName = this.sourceName;
+ var targetName = data.sourceName;
+ var capability = createPromiseCapability();
+ var sendStreamRequest = function sendStreamRequest(_ref) {
+ var stream = _ref.stream,
+ chunk = _ref.chunk,
+ transfers = _ref.transfers,
+ success = _ref.success,
+ reason = _ref.reason;
+
+ _this3.postMessage({
+ sourceName: sourceName,
+ targetName: targetName,
+ stream: stream,
+ streamId: streamId,
+ chunk: chunk,
+ success: success,
+ reason: reason
+ }, transfers);
+ };
+ var streamSink = {
+ enqueue: function enqueue(chunk) {
+ var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
+ var transfers = arguments[2];
+
+ if (this.isCancelled) {
+ return;
+ }
+ var lastDesiredSize = this.desiredSize;
+ this.desiredSize -= size;
+ if (lastDesiredSize > 0 && this.desiredSize <= 0) {
+ this.sinkCapability = createPromiseCapability();
+ this.ready = this.sinkCapability.promise;
+ }
+ sendStreamRequest({
+ stream: 'enqueue',
+ chunk: chunk,
+ transfers: transfers
+ });
+ },
+ close: function close() {
+ if (this.isCancelled) {
+ return;
+ }
+ sendStreamRequest({ stream: 'close' });
+ delete self.streamSinks[streamId];
+ },
+ error: function error(reason) {
+ if (this.isCancelled) {
+ return;
+ }
+ this.isCancelled = true;
+ sendStreamRequest({
+ stream: 'error',
+ reason: reason
+ });
+ },
+
+ sinkCapability: capability,
+ onPull: null,
+ onCancel: null,
+ isCancelled: false,
+ desiredSize: desiredSize,
+ ready: null
+ };
+ streamSink.sinkCapability.resolve();
+ streamSink.ready = streamSink.sinkCapability.promise;
+ this.streamSinks[streamId] = streamSink;
+ resolveCall(action[0], [data.data, streamSink], action[1]).then(function () {
+ sendStreamRequest({
+ stream: 'start_complete',
+ success: true
+ });
+ }, function (reason) {
+ sendStreamRequest({
+ stream: 'start_complete',
+ success: false,
+ reason: reason
+ });
+ });
+ },
+ _processStreamMessage: function _processStreamMessage(data) {
+ var _this4 = this;
+
+ var sourceName = this.sourceName;
+ var targetName = data.sourceName;
+ var streamId = data.streamId;
+ var sendStreamResponse = function sendStreamResponse(_ref2) {
+ var stream = _ref2.stream,
+ success = _ref2.success,
+ reason = _ref2.reason;
+
+ _this4.comObj.postMessage({
+ sourceName: sourceName,
+ targetName: targetName,
+ stream: stream,
+ success: success,
+ streamId: streamId,
+ reason: reason
+ });
+ };
+ var deleteStreamController = function deleteStreamController() {
+ Promise.all([_this4.streamControllers[data.streamId].startCall, _this4.streamControllers[data.streamId].pullCall, _this4.streamControllers[data.streamId].cancelCall].map(function (capability) {
+ return capability && finalize(capability.promise);
+ })).then(function () {
+ delete _this4.streamControllers[data.streamId];
+ });
+ };
+ switch (data.stream) {
+ case 'start_complete':
+ resolveOrReject(this.streamControllers[data.streamId].startCall, data.success, wrapReason(data.reason));
+ break;
+ case 'pull_complete':
+ resolveOrReject(this.streamControllers[data.streamId].pullCall, data.success, wrapReason(data.reason));
+ break;
+ case 'pull':
+ if (!this.streamSinks[data.streamId]) {
+ sendStreamResponse({
+ stream: 'pull_complete',
+ success: true
+ });
+ break;
+ }
+ if (this.streamSinks[data.streamId].desiredSize <= 0 && data.desiredSize > 0) {
+ this.streamSinks[data.streamId].sinkCapability.resolve();
+ }
+ this.streamSinks[data.streamId].desiredSize = data.desiredSize;
+ resolveCall(this.streamSinks[data.streamId].onPull).then(function () {
+ sendStreamResponse({
+ stream: 'pull_complete',
+ success: true
+ });
+ }, function (reason) {
+ sendStreamResponse({
+ stream: 'pull_complete',
+ success: false,
+ reason: reason
+ });
+ });
+ break;
+ case 'enqueue':
+ assert(this.streamControllers[data.streamId], 'enqueue should have stream controller');
+ if (!this.streamControllers[data.streamId].isClosed) {
+ this.streamControllers[data.streamId].controller.enqueue(data.chunk);
+ }
+ break;
+ case 'close':
+ assert(this.streamControllers[data.streamId], 'close should have stream controller');
+ if (this.streamControllers[data.streamId].isClosed) {
+ break;
+ }
+ this.streamControllers[data.streamId].isClosed = true;
+ this.streamControllers[data.streamId].controller.close();
+ deleteStreamController();
+ break;
+ case 'error':
+ assert(this.streamControllers[data.streamId], 'error should have stream controller');
+ this.streamControllers[data.streamId].controller.error(wrapReason(data.reason));
+ deleteStreamController();
+ break;
+ case 'cancel_complete':
+ resolveOrReject(this.streamControllers[data.streamId].cancelCall, data.success, wrapReason(data.reason));
+ deleteStreamController();
+ break;
+ case 'cancel':
+ if (!this.streamSinks[data.streamId]) {
+ break;
+ }
+ resolveCall(this.streamSinks[data.streamId].onCancel, [wrapReason(data.reason)]).then(function () {
+ sendStreamResponse({
+ stream: 'cancel_complete',
+ success: true
+ });
+ }, function (reason) {
+ sendStreamResponse({
+ stream: 'cancel_complete',
+ success: false,
+ reason: reason
+ });
+ });
+ this.streamSinks[data.streamId].sinkCapability.reject(wrapReason(data.reason));
+ this.streamSinks[data.streamId].isCancelled = true;
+ delete this.streamSinks[data.streamId];
+ break;
+ default:
+ throw new Error('Unexpected stream case');
+ }
+ },
+ postMessage: function postMessage(message, transfers) {
+ if (transfers && this.postMessageTransfers) {
+ this.comObj.postMessage(message, transfers);
+ } else {
+ this.comObj.postMessage(message);
+ }
+ },
+ destroy: function destroy() {
+ this.comObj.removeEventListener('message', this._onComObjOnMessage);
+ }
+};
+function loadJpegStream(id, imageUrl, objs) {
+ var img = new Image();
+ img.onload = function loadJpegStream_onloadClosure() {
+ objs.resolve(id, img);
+ };
+ img.onerror = function loadJpegStream_onerrorClosure() {
+ objs.resolve(id, null);
+ warn('Error during JPEG image loading');
+ };
+ img.src = imageUrl;
+}
+exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
+exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
+exports.OPS = OPS;
+exports.VERBOSITY_LEVELS = VERBOSITY_LEVELS;
+exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
+exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
+exports.AnnotationFieldFlag = AnnotationFieldFlag;
+exports.AnnotationFlag = AnnotationFlag;
+exports.AnnotationType = AnnotationType;
+exports.FontType = FontType;
+exports.ImageKind = ImageKind;
+exports.CMapCompressionType = CMapCompressionType;
+exports.AbortException = AbortException;
+exports.InvalidPDFException = InvalidPDFException;
+exports.MessageHandler = MessageHandler;
+exports.MissingDataException = MissingDataException;
+exports.MissingPDFException = MissingPDFException;
+exports.NativeImageDecoding = NativeImageDecoding;
+exports.NotImplementedException = NotImplementedException;
+exports.PageViewport = PageViewport;
+exports.PasswordException = PasswordException;
+exports.PasswordResponses = PasswordResponses;
+exports.StatTimer = StatTimer;
+exports.StreamType = StreamType;
+exports.TextRenderingMode = TextRenderingMode;
+exports.UnexpectedResponseException = UnexpectedResponseException;
+exports.UnknownErrorException = UnknownErrorException;
+exports.Util = Util;
+exports.XRefParseException = XRefParseException;
+exports.FormatError = FormatError;
+exports.arrayByteLength = arrayByteLength;
+exports.arraysToBytes = arraysToBytes;
+exports.assert = assert;
+exports.bytesToString = bytesToString;
+exports.createBlob = createBlob;
+exports.createPromiseCapability = createPromiseCapability;
+exports.createObjectURL = createObjectURL;
+exports.deprecated = deprecated;
+exports.getLookupTableFactory = getLookupTableFactory;
+exports.getVerbosityLevel = getVerbosityLevel;
+exports.globalScope = globalScope;
+exports.info = info;
+exports.isArray = isArray;
+exports.isArrayBuffer = isArrayBuffer;
+exports.isBool = isBool;
+exports.isEmptyObj = isEmptyObj;
+exports.isInt = isInt;
+exports.isNum = isNum;
+exports.isString = isString;
+exports.isSpace = isSpace;
+exports.isNodeJS = isNodeJS;
+exports.isSameOrigin = isSameOrigin;
+exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
+exports.isLittleEndian = isLittleEndian;
+exports.isEvalSupported = isEvalSupported;
+exports.loadJpegStream = loadJpegStream;
+exports.log2 = log2;
+exports.readInt8 = readInt8;
+exports.readUint16 = readUint16;
+exports.readUint32 = readUint32;
+exports.removeNullCharacters = removeNullCharacters;
+exports.ReadableStream = _streams_polyfill.ReadableStream;
+exports.setVerbosityLevel = setVerbosityLevel;
+exports.shadow = shadow;
+exports.string32 = string32;
+exports.stringToBytes = stringToBytes;
+exports.stringToPDFString = stringToPDFString;
+exports.stringToUTF8String = stringToUTF8String;
+exports.utf8StringToString = utf8StringToString;
+exports.warn = warn;
+exports.unreachable = unreachable;
+
+/***/ }),
+/* 1 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.DOMCMapReaderFactory = exports.DOMCanvasFactory = exports.DEFAULT_LINK_REL = exports.getDefaultSetting = exports.LinkTarget = exports.getFilenameFromUrl = exports.isValidUrl = exports.isExternalLinkTargetSet = exports.addLinkAttributes = exports.RenderingCancelledException = exports.CustomStyle = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _util = __w_pdfjs_require__(0);
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var DEFAULT_LINK_REL = 'noopener noreferrer nofollow';
+
+var DOMCanvasFactory = function () {
+ function DOMCanvasFactory() {
+ _classCallCheck(this, DOMCanvasFactory);
+ }
+
+ _createClass(DOMCanvasFactory, [{
+ key: 'create',
+ value: function create(width, height) {
+ if (width <= 0 || height <= 0) {
+ throw new Error('invalid canvas size');
+ }
+ var canvas = document.createElement('canvas');
+ var context = canvas.getContext('2d');
+ canvas.width = width;
+ canvas.height = height;
+ return {
+ canvas: canvas,
+ context: context
+ };
+ }
+ }, {
+ key: 'reset',
+ value: function reset(canvasAndContext, width, height) {
+ if (!canvasAndContext.canvas) {
+ throw new Error('canvas is not specified');
+ }
+ if (width <= 0 || height <= 0) {
+ throw new Error('invalid canvas size');
+ }
+ canvasAndContext.canvas.width = width;
+ canvasAndContext.canvas.height = height;
+ }
+ }, {
+ key: 'destroy',
+ value: function destroy(canvasAndContext) {
+ if (!canvasAndContext.canvas) {
+ throw new Error('canvas is not specified');
+ }
+ canvasAndContext.canvas.width = 0;
+ canvasAndContext.canvas.height = 0;
+ canvasAndContext.canvas = null;
+ canvasAndContext.context = null;
+ }
+ }]);
+
+ return DOMCanvasFactory;
+}();
+
+var DOMCMapReaderFactory = function () {
+ function DOMCMapReaderFactory(_ref) {
+ var _ref$baseUrl = _ref.baseUrl,
+ baseUrl = _ref$baseUrl === undefined ? null : _ref$baseUrl,
+ _ref$isCompressed = _ref.isCompressed,
+ isCompressed = _ref$isCompressed === undefined ? false : _ref$isCompressed;
+
+ _classCallCheck(this, DOMCMapReaderFactory);
+
+ this.baseUrl = baseUrl;
+ this.isCompressed = isCompressed;
+ }
+
+ _createClass(DOMCMapReaderFactory, [{
+ key: 'fetch',
+ value: function fetch(_ref2) {
+ var _this = this;
+
+ var name = _ref2.name;
+
+ if (!name) {
+ return Promise.reject(new Error('CMap name must be specified.'));
+ }
+ return new Promise(function (resolve, reject) {
+ var url = _this.baseUrl + name + (_this.isCompressed ? '.bcmap' : '');
+ var request = new XMLHttpRequest();
+ request.open('GET', url, true);
+ if (_this.isCompressed) {
+ request.responseType = 'arraybuffer';
+ }
+ request.onreadystatechange = function () {
+ if (request.readyState !== XMLHttpRequest.DONE) {
+ return;
+ }
+ if (request.status === 200 || request.status === 0) {
+ var data = void 0;
+ if (_this.isCompressed && request.response) {
+ data = new Uint8Array(request.response);
+ } else if (!_this.isCompressed && request.responseText) {
+ data = (0, _util.stringToBytes)(request.responseText);
+ }
+ if (data) {
+ resolve({
+ cMapData: data,
+ compressionType: _this.isCompressed ? _util.CMapCompressionType.BINARY : _util.CMapCompressionType.NONE
+ });
+ return;
+ }
+ }
+ reject(new Error('Unable to load ' + (_this.isCompressed ? 'binary ' : '') + 'CMap at: ' + url));
+ };
+ request.send(null);
+ });
+ }
+ }]);
+
+ return DOMCMapReaderFactory;
+}();
+
+var CustomStyle = function CustomStyleClosure() {
+ var prefixes = ['ms', 'Moz', 'Webkit', 'O'];
+ var _cache = Object.create(null);
+ function CustomStyle() {}
+ CustomStyle.getProp = function get(propName, element) {
+ if (arguments.length === 1 && typeof _cache[propName] === 'string') {
+ return _cache[propName];
+ }
+ element = element || document.documentElement;
+ var style = element.style,
+ prefixed,
+ uPropName;
+ if (typeof style[propName] === 'string') {
+ return _cache[propName] = propName;
+ }
+ uPropName = propName.charAt(0).toUpperCase() + propName.slice(1);
+ for (var i = 0, l = prefixes.length; i < l; i++) {
+ prefixed = prefixes[i] + uPropName;
+ if (typeof style[prefixed] === 'string') {
+ return _cache[propName] = prefixed;
+ }
+ }
+ return _cache[propName] = 'undefined';
+ };
+ CustomStyle.setProp = function set(propName, element, str) {
+ var prop = this.getProp(propName);
+ if (prop !== 'undefined') {
+ element.style[prop] = str;
+ }
+ };
+ return CustomStyle;
+}();
+var RenderingCancelledException = function RenderingCancelledException() {
+ function RenderingCancelledException(msg, type) {
+ this.message = msg;
+ this.type = type;
+ }
+ RenderingCancelledException.prototype = new Error();
+ RenderingCancelledException.prototype.name = 'RenderingCancelledException';
+ RenderingCancelledException.constructor = RenderingCancelledException;
+ return RenderingCancelledException;
+}();
+var LinkTarget = {
+ NONE: 0,
+ SELF: 1,
+ BLANK: 2,
+ PARENT: 3,
+ TOP: 4
+};
+var LinkTargetStringMap = ['', '_self', '_blank', '_parent', '_top'];
+function addLinkAttributes(link, params) {
+ var url = params && params.url;
+ link.href = link.title = url ? (0, _util.removeNullCharacters)(url) : '';
+ if (url) {
+ var target = params.target;
+ if (typeof target === 'undefined') {
+ target = getDefaultSetting('externalLinkTarget');
+ }
+ link.target = LinkTargetStringMap[target];
+ var rel = params.rel;
+ if (typeof rel === 'undefined') {
+ rel = getDefaultSetting('externalLinkRel');
+ }
+ link.rel = rel;
+ }
+}
+function getFilenameFromUrl(url) {
+ var anchor = url.indexOf('#');
+ var query = url.indexOf('?');
+ var end = Math.min(anchor > 0 ? anchor : url.length, query > 0 ? query : url.length);
+ return url.substring(url.lastIndexOf('/', end) + 1, end);
+}
+function getDefaultSetting(id) {
+ var globalSettings = _util.globalScope.PDFJS;
+ switch (id) {
+ case 'pdfBug':
+ return globalSettings ? globalSettings.pdfBug : false;
+ case 'disableAutoFetch':
+ return globalSettings ? globalSettings.disableAutoFetch : false;
+ case 'disableStream':
+ return globalSettings ? globalSettings.disableStream : false;
+ case 'disableRange':
+ return globalSettings ? globalSettings.disableRange : false;
+ case 'disableFontFace':
+ return globalSettings ? globalSettings.disableFontFace : false;
+ case 'disableCreateObjectURL':
+ return globalSettings ? globalSettings.disableCreateObjectURL : false;
+ case 'disableWebGL':
+ return globalSettings ? globalSettings.disableWebGL : true;
+ case 'cMapUrl':
+ return globalSettings ? globalSettings.cMapUrl : null;
+ case 'cMapPacked':
+ return globalSettings ? globalSettings.cMapPacked : false;
+ case 'postMessageTransfers':
+ return globalSettings ? globalSettings.postMessageTransfers : true;
+ case 'workerPort':
+ return globalSettings ? globalSettings.workerPort : null;
+ case 'workerSrc':
+ return globalSettings ? globalSettings.workerSrc : null;
+ case 'disableWorker':
+ return globalSettings ? globalSettings.disableWorker : false;
+ case 'maxImageSize':
+ return globalSettings ? globalSettings.maxImageSize : -1;
+ case 'imageResourcesPath':
+ return globalSettings ? globalSettings.imageResourcesPath : '';
+ case 'isEvalSupported':
+ return globalSettings ? globalSettings.isEvalSupported : true;
+ case 'externalLinkTarget':
+ if (!globalSettings) {
+ return LinkTarget.NONE;
+ }
+ switch (globalSettings.externalLinkTarget) {
+ case LinkTarget.NONE:
+ case LinkTarget.SELF:
+ case LinkTarget.BLANK:
+ case LinkTarget.PARENT:
+ case LinkTarget.TOP:
+ return globalSettings.externalLinkTarget;
+ }
+ (0, _util.warn)('PDFJS.externalLinkTarget is invalid: ' + globalSettings.externalLinkTarget);
+ globalSettings.externalLinkTarget = LinkTarget.NONE;
+ return LinkTarget.NONE;
+ case 'externalLinkRel':
+ return globalSettings ? globalSettings.externalLinkRel : DEFAULT_LINK_REL;
+ case 'enableStats':
+ return !!(globalSettings && globalSettings.enableStats);
+ case 'pdfjsNext':
+ return !!(globalSettings && globalSettings.pdfjsNext);
+ default:
+ throw new Error('Unknown default setting: ' + id);
+ }
+}
+function isExternalLinkTargetSet() {
+ var externalLinkTarget = getDefaultSetting('externalLinkTarget');
+ switch (externalLinkTarget) {
+ case LinkTarget.NONE:
+ return false;
+ case LinkTarget.SELF:
+ case LinkTarget.BLANK:
+ case LinkTarget.PARENT:
+ case LinkTarget.TOP:
+ return true;
+ }
+}
+function isValidUrl(url, allowRelative) {
+ (0, _util.deprecated)('isValidUrl(), please use createValidAbsoluteUrl() instead.');
+ var baseUrl = allowRelative ? 'http://example.com' : null;
+ return (0, _util.createValidAbsoluteUrl)(url, baseUrl) !== null;
+}
+exports.CustomStyle = CustomStyle;
+exports.RenderingCancelledException = RenderingCancelledException;
+exports.addLinkAttributes = addLinkAttributes;
+exports.isExternalLinkTargetSet = isExternalLinkTargetSet;
+exports.isValidUrl = isValidUrl;
+exports.getFilenameFromUrl = getFilenameFromUrl;
+exports.LinkTarget = LinkTarget;
+exports.getDefaultSetting = getDefaultSetting;
+exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;
+exports.DOMCanvasFactory = DOMCanvasFactory;
+exports.DOMCMapReaderFactory = DOMCMapReaderFactory;
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.build = exports.version = exports._UnsupportedManager = exports.setPDFNetworkStreamClass = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = exports.getDocument = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var _util = __w_pdfjs_require__(0);
+
+var _dom_utils = __w_pdfjs_require__(1);
+
+var _font_loader = __w_pdfjs_require__(12);
+
+var _canvas = __w_pdfjs_require__(11);
+
+var _metadata = __w_pdfjs_require__(6);
+
+var _transport_stream = __w_pdfjs_require__(14);
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var DEFAULT_RANGE_CHUNK_SIZE = 65536;
+var isWorkerDisabled = false;
+var workerSrc;
+var isPostMessageTransfersDisabled = false;
+var pdfjsFilePath = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : null;
+var fakeWorkerFilesLoader = null;
+var useRequireEnsure = false;
+{
+ if (typeof window === 'undefined') {
+ isWorkerDisabled = true;
+ if (typeof require.ensure === 'undefined') {
+ require.ensure = require('node-ensure');
+ }
+ useRequireEnsure = true;
+ } else if (typeof require !== 'undefined' && typeof require.ensure === 'function') {
+ useRequireEnsure = true;
+ }
+ if (typeof requirejs !== 'undefined' && requirejs.toUrl) {
+ workerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');
+ }
+ var dynamicLoaderSupported = typeof requirejs !== 'undefined' && requirejs.load;
+ fakeWorkerFilesLoader = useRequireEnsure ? function (callback) {
+ require.ensure([], function () {
+ var worker;
+ worker = require('./pdf.worker.js');
+ callback(worker.WorkerMessageHandler);
+ });
+ } : dynamicLoaderSupported ? function (callback) {
+ requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {
+ callback(worker.WorkerMessageHandler);
+ });
+ } : null;
+}
+var PDFNetworkStream;
+function setPDFNetworkStreamClass(cls) {
+ PDFNetworkStream = cls;
+}
+function getDocument(src, pdfDataRangeTransport, passwordCallback, progressCallback) {
+ var task = new PDFDocumentLoadingTask();
+ if (arguments.length > 1) {
+ (0, _util.deprecated)('getDocument is called with pdfDataRangeTransport, ' + 'passwordCallback or progressCallback argument');
+ }
+ if (pdfDataRangeTransport) {
+ if (!(pdfDataRangeTransport instanceof PDFDataRangeTransport)) {
+ pdfDataRangeTransport = Object.create(pdfDataRangeTransport);
+ pdfDataRangeTransport.length = src.length;
+ pdfDataRangeTransport.initialData = src.initialData;
+ if (!pdfDataRangeTransport.abort) {
+ pdfDataRangeTransport.abort = function () {};
+ }
+ }
+ src = Object.create(src);
+ src.range = pdfDataRangeTransport;
+ }
+ task.onPassword = passwordCallback || null;
+ task.onProgress = progressCallback || null;
+ var source;
+ if (typeof src === 'string') {
+ source = { url: src };
+ } else if ((0, _util.isArrayBuffer)(src)) {
+ source = { data: src };
+ } else if (src instanceof PDFDataRangeTransport) {
+ source = { range: src };
+ } else {
+ if ((typeof src === 'undefined' ? 'undefined' : _typeof(src)) !== 'object') {
+ throw new Error('Invalid parameter in getDocument, ' + 'need either Uint8Array, string or a parameter object');
+ }
+ if (!src.url && !src.data && !src.range) {
+ throw new Error('Invalid parameter object: need either .data, .range or .url');
+ }
+ source = src;
+ }
+ var params = {};
+ var rangeTransport = null;
+ var worker = null;
+ var CMapReaderFactory = _dom_utils.DOMCMapReaderFactory;
+ for (var key in source) {
+ if (key === 'url' && typeof window !== 'undefined') {
+ params[key] = new URL(source[key], window.location).href;
+ continue;
+ } else if (key === 'range') {
+ rangeTransport = source[key];
+ continue;
+ } else if (key === 'worker') {
+ worker = source[key];
+ continue;
+ } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {
+ var pdfBytes = source[key];
+ if (typeof pdfBytes === 'string') {
+ params[key] = (0, _util.stringToBytes)(pdfBytes);
+ } else if ((typeof pdfBytes === 'undefined' ? 'undefined' : _typeof(pdfBytes)) === 'object' && pdfBytes !== null && !isNaN(pdfBytes.length)) {
+ params[key] = new Uint8Array(pdfBytes);
+ } else if ((0, _util.isArrayBuffer)(pdfBytes)) {
+ params[key] = new Uint8Array(pdfBytes);
+ } else {
+ throw new Error('Invalid PDF binary data: either typed array, ' + 'string or array-like object is expected in the ' + 'data property.');
+ }
+ continue;
+ } else if (key === 'CMapReaderFactory') {
+ CMapReaderFactory = source[key];
+ continue;
+ }
+ params[key] = source[key];
+ }
+ params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
+ params.ignoreErrors = params.stopAtErrors !== true;
+ if (params.disableNativeImageDecoder !== undefined) {
+ (0, _util.deprecated)('parameter disableNativeImageDecoder, ' + 'use nativeImageDecoderSupport instead');
+ }
+ params.nativeImageDecoderSupport = params.nativeImageDecoderSupport || (params.disableNativeImageDecoder === true ? _util.NativeImageDecoding.NONE : _util.NativeImageDecoding.DECODE);
+ if (params.nativeImageDecoderSupport !== _util.NativeImageDecoding.DECODE && params.nativeImageDecoderSupport !== _util.NativeImageDecoding.NONE && params.nativeImageDecoderSupport !== _util.NativeImageDecoding.DISPLAY) {
+ (0, _util.warn)('Invalid parameter nativeImageDecoderSupport: ' + 'need a state of enum {NativeImageDecoding}');
+ params.nativeImageDecoderSupport = _util.NativeImageDecoding.DECODE;
+ }
+ if (!worker) {
+ var workerPort = (0, _dom_utils.getDefaultSetting)('workerPort');
+ worker = workerPort ? PDFWorker.fromPort(workerPort) : new PDFWorker();
+ task._worker = worker;
+ }
+ var docId = task.docId;
+ worker.promise.then(function () {
+ if (task.destroyed) {
+ throw new Error('Loading aborted');
+ }
+ return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
+ if (task.destroyed) {
+ throw new Error('Loading aborted');
+ }
+ var networkStream = void 0;
+ if (rangeTransport) {
+ networkStream = new _transport_stream.PDFDataTransportStream(params, rangeTransport);
+ } else if (!params.data) {
+ networkStream = new PDFNetworkStream({
+ source: params,
+ disableRange: (0, _dom_utils.getDefaultSetting)('disableRange')
+ });
+ }
+ var messageHandler = new _util.MessageHandler(docId, workerId, worker.port);
+ messageHandler.postMessageTransfers = worker.postMessageTransfers;
+ var transport = new WorkerTransport(messageHandler, task, networkStream, CMapReaderFactory);
+ task._transport = transport;
+ messageHandler.send('Ready', null);
+ });
+ }).catch(task._capability.reject);
+ return task;
+}
+function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
+ if (worker.destroyed) {
+ return Promise.reject(new Error('Worker was destroyed'));
+ }
+ source.disableAutoFetch = (0, _dom_utils.getDefaultSetting)('disableAutoFetch');
+ source.disableStream = (0, _dom_utils.getDefaultSetting)('disableStream');
+ source.chunkedViewerLoading = !!pdfDataRangeTransport;
+ if (pdfDataRangeTransport) {
+ source.length = pdfDataRangeTransport.length;
+ source.initialData = pdfDataRangeTransport.initialData;
+ }
+ return worker.messageHandler.sendWithPromise('GetDocRequest', {
+ docId: docId,
+ source: {
+ data: source.data,
+ url: source.url,
+ password: source.password,
+ disableAutoFetch: source.disableAutoFetch,
+ rangeChunkSize: source.rangeChunkSize,
+ length: source.length
+ },
+ maxImageSize: (0, _dom_utils.getDefaultSetting)('maxImageSize'),
+ disableFontFace: (0, _dom_utils.getDefaultSetting)('disableFontFace'),
+ disableCreateObjectURL: (0, _dom_utils.getDefaultSetting)('disableCreateObjectURL'),
+ postMessageTransfers: (0, _dom_utils.getDefaultSetting)('postMessageTransfers') && !isPostMessageTransfersDisabled,
+ docBaseUrl: source.docBaseUrl,
+ nativeImageDecoderSupport: source.nativeImageDecoderSupport,
+ ignoreErrors: source.ignoreErrors
+ }).then(function (workerId) {
+ if (worker.destroyed) {
+ throw new Error('Worker was destroyed');
+ }
+ return workerId;
+ });
+}
+var PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
+ var nextDocumentId = 0;
+ function PDFDocumentLoadingTask() {
+ this._capability = (0, _util.createPromiseCapability)();
+ this._transport = null;
+ this._worker = null;
+ this.docId = 'd' + nextDocumentId++;
+ this.destroyed = false;
+ this.onPassword = null;
+ this.onProgress = null;
+ this.onUnsupportedFeature = null;
+ }
+ PDFDocumentLoadingTask.prototype = {
+ get promise() {
+ return this._capability.promise;
+ },
+ destroy: function destroy() {
+ var _this = this;
+
+ this.destroyed = true;
+ var transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
+ return transportDestroyed.then(function () {
+ _this._transport = null;
+ if (_this._worker) {
+ _this._worker.destroy();
+ _this._worker = null;
+ }
+ });
+ },
+
+ then: function PDFDocumentLoadingTask_then(onFulfilled, onRejected) {
+ return this.promise.then.apply(this.promise, arguments);
+ }
+ };
+ return PDFDocumentLoadingTask;
+}();
+var PDFDataRangeTransport = function pdfDataRangeTransportClosure() {
+ function PDFDataRangeTransport(length, initialData) {
+ this.length = length;
+ this.initialData = initialData;
+ this._rangeListeners = [];
+ this._progressListeners = [];
+ this._progressiveReadListeners = [];
+ this._readyCapability = (0, _util.createPromiseCapability)();
+ }
+ PDFDataRangeTransport.prototype = {
+ addRangeListener: function PDFDataRangeTransport_addRangeListener(listener) {
+ this._rangeListeners.push(listener);
+ },
+ addProgressListener: function PDFDataRangeTransport_addProgressListener(listener) {
+ this._progressListeners.push(listener);
+ },
+ addProgressiveReadListener: function PDFDataRangeTransport_addProgressiveReadListener(listener) {
+ this._progressiveReadListeners.push(listener);
+ },
+ onDataRange: function PDFDataRangeTransport_onDataRange(begin, chunk) {
+ var listeners = this._rangeListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](begin, chunk);
+ }
+ },
+ onDataProgress: function PDFDataRangeTransport_onDataProgress(loaded) {
+ var _this2 = this;
+
+ this._readyCapability.promise.then(function () {
+ var listeners = _this2._progressListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](loaded);
+ }
+ });
+ },
+ onDataProgressiveRead: function PDFDataRangeTransport_onDataProgress(chunk) {
+ var _this3 = this;
+
+ this._readyCapability.promise.then(function () {
+ var listeners = _this3._progressiveReadListeners;
+ for (var i = 0, n = listeners.length; i < n; ++i) {
+ listeners[i](chunk);
+ }
+ });
+ },
+ transportReady: function PDFDataRangeTransport_transportReady() {
+ this._readyCapability.resolve();
+ },
+ requestDataRange: function PDFDataRangeTransport_requestDataRange(begin, end) {
+ throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');
+ },
+ abort: function PDFDataRangeTransport_abort() {}
+ };
+ return PDFDataRangeTransport;
+}();
+var PDFDocumentProxy = function PDFDocumentProxyClosure() {
+ function PDFDocumentProxy(pdfInfo, transport, loadingTask) {
+ this.pdfInfo = pdfInfo;
+ this.transport = transport;
+ this.loadingTask = loadingTask;
+ }
+ PDFDocumentProxy.prototype = {
+ get numPages() {
+ return this.pdfInfo.numPages;
+ },
+ get fingerprint() {
+ return this.pdfInfo.fingerprint;
+ },
+ getPage: function PDFDocumentProxy_getPage(pageNumber) {
+ return this.transport.getPage(pageNumber);
+ },
+ getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {
+ return this.transport.getPageIndex(ref);
+ },
+ getDestinations: function PDFDocumentProxy_getDestinations() {
+ return this.transport.getDestinations();
+ },
+ getDestination: function PDFDocumentProxy_getDestination(id) {
+ return this.transport.getDestination(id);
+ },
+ getPageLabels: function PDFDocumentProxy_getPageLabels() {
+ return this.transport.getPageLabels();
+ },
+ getPageMode: function getPageMode() {
+ return this.transport.getPageMode();
+ },
+
+ getAttachments: function PDFDocumentProxy_getAttachments() {
+ return this.transport.getAttachments();
+ },
+ getJavaScript: function PDFDocumentProxy_getJavaScript() {
+ return this.transport.getJavaScript();
+ },
+ getOutline: function PDFDocumentProxy_getOutline() {
+ return this.transport.getOutline();
+ },
+ getMetadata: function PDFDocumentProxy_getMetadata() {
+ return this.transport.getMetadata();
+ },
+ getData: function PDFDocumentProxy_getData() {
+ return this.transport.getData();
+ },
+ getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {
+ return this.transport.downloadInfoCapability.promise;
+ },
+ getStats: function PDFDocumentProxy_getStats() {
+ return this.transport.getStats();
+ },
+ cleanup: function PDFDocumentProxy_cleanup() {
+ this.transport.startCleanup();
+ },
+ destroy: function PDFDocumentProxy_destroy() {
+ return this.loadingTask.destroy();
+ }
+ };
+ return PDFDocumentProxy;
+}();
+var PDFPageProxy = function PDFPageProxyClosure() {
+ function PDFPageProxy(pageIndex, pageInfo, transport) {
+ this.pageIndex = pageIndex;
+ this.pageInfo = pageInfo;
+ this.transport = transport;
+ this.stats = new _util.StatTimer();
+ this.stats.enabled = (0, _dom_utils.getDefaultSetting)('enableStats');
+ this.commonObjs = transport.commonObjs;
+ this.objs = new PDFObjects();
+ this.cleanupAfterRender = false;
+ this.pendingCleanup = false;
+ this.intentStates = Object.create(null);
+ this.destroyed = false;
+ }
+ PDFPageProxy.prototype = {
+ get pageNumber() {
+ return this.pageIndex + 1;
+ },
+ get rotate() {
+ return this.pageInfo.rotate;
+ },
+ get ref() {
+ return this.pageInfo.ref;
+ },
+ get userUnit() {
+ return this.pageInfo.userUnit;
+ },
+ get view() {
+ return this.pageInfo.view;
+ },
+ getViewport: function PDFPageProxy_getViewport(scale, rotate) {
+ if (arguments.length < 2) {
+ rotate = this.rotate;
+ }
+ return new _util.PageViewport(this.view, scale, rotate, 0, 0);
+ },
+ getAnnotations: function PDFPageProxy_getAnnotations(params) {
+ var intent = params && params.intent || null;
+ if (!this.annotationsPromise || this.annotationsIntent !== intent) {
+ this.annotationsPromise = this.transport.getAnnotations(this.pageIndex, intent);
+ this.annotationsIntent = intent;
+ }
+ return this.annotationsPromise;
+ },
+ render: function PDFPageProxy_render(params) {
+ var _this4 = this;
+
+ var stats = this.stats;
+ stats.time('Overall');
+ this.pendingCleanup = false;
+ var renderingIntent = params.intent === 'print' ? 'print' : 'display';
+ var canvasFactory = params.canvasFactory || new _dom_utils.DOMCanvasFactory();
+ if (!this.intentStates[renderingIntent]) {
+ this.intentStates[renderingIntent] = Object.create(null);
+ }
+ var intentState = this.intentStates[renderingIntent];
+ if (!intentState.displayReadyCapability) {
+ intentState.receivingOperatorList = true;
+ intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
+ intentState.operatorList = {
+ fnArray: [],
+ argsArray: [],
+ lastChunk: false
+ };
+ this.stats.time('Page Request');
+ this.transport.messageHandler.send('RenderPageRequest', {
+ pageIndex: this.pageNumber - 1,
+ intent: renderingIntent,
+ renderInteractiveForms: params.renderInteractiveForms === true
+ });
+ }
+ var complete = function complete(error) {
+ var i = intentState.renderTasks.indexOf(internalRenderTask);
+ if (i >= 0) {
+ intentState.renderTasks.splice(i, 1);
+ }
+ if (_this4.cleanupAfterRender) {
+ _this4.pendingCleanup = true;
+ }
+ _this4._tryCleanup();
+ if (error) {
+ internalRenderTask.capability.reject(error);
+ } else {
+ internalRenderTask.capability.resolve();
+ }
+ stats.timeEnd('Rendering');
+ stats.timeEnd('Overall');
+ };
+ var internalRenderTask = new InternalRenderTask(complete, params, this.objs, this.commonObjs, intentState.operatorList, this.pageNumber, canvasFactory);
+ internalRenderTask.useRequestAnimationFrame = renderingIntent !== 'print';
+ if (!intentState.renderTasks) {
+ intentState.renderTasks = [];
+ }
+ intentState.renderTasks.push(internalRenderTask);
+ var renderTask = internalRenderTask.task;
+ if (params.continueCallback) {
+ (0, _util.deprecated)('render is used with continueCallback parameter');
+ renderTask.onContinue = params.continueCallback;
+ }
+ intentState.displayReadyCapability.promise.then(function (transparency) {
+ if (_this4.pendingCleanup) {
+ complete();
+ return;
+ }
+ stats.time('Rendering');
+ internalRenderTask.initializeGraphics(transparency);
+ internalRenderTask.operatorListChanged();
+ }).catch(complete);
+ return renderTask;
+ },
+ getOperatorList: function PDFPageProxy_getOperatorList() {
+ function operatorListChanged() {
+ if (intentState.operatorList.lastChunk) {
+ intentState.opListReadCapability.resolve(intentState.operatorList);
+ var i = intentState.renderTasks.indexOf(opListTask);
+ if (i >= 0) {
+ intentState.renderTasks.splice(i, 1);
+ }
+ }
+ }
+ var renderingIntent = 'oplist';
+ if (!this.intentStates[renderingIntent]) {
+ this.intentStates[renderingIntent] = Object.create(null);
+ }
+ var intentState = this.intentStates[renderingIntent];
+ var opListTask;
+ if (!intentState.opListReadCapability) {
+ opListTask = {};
+ opListTask.operatorListChanged = operatorListChanged;
+ intentState.receivingOperatorList = true;
+ intentState.opListReadCapability = (0, _util.createPromiseCapability)();
+ intentState.renderTasks = [];
+ intentState.renderTasks.push(opListTask);
+ intentState.operatorList = {
+ fnArray: [],
+ argsArray: [],
+ lastChunk: false
+ };
+ this.transport.messageHandler.send('RenderPageRequest', {
+ pageIndex: this.pageIndex,
+ intent: renderingIntent
+ });
+ }
+ return intentState.opListReadCapability.promise;
+ },
+ streamTextContent: function streamTextContent() {
+ var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+
+ var TEXT_CONTENT_CHUNK_SIZE = 100;
+ return this.transport.messageHandler.sendWithStream('GetTextContent', {
+ pageIndex: this.pageNumber - 1,
+ normalizeWhitespace: params.normalizeWhitespace === true,
+ combineTextItems: params.disableCombineTextItems !== true
+ }, {
+ highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
+ size: function size(textContent) {
+ return textContent.items.length;
+ }
+ });
+ },
+
+ getTextContent: function PDFPageProxy_getTextContent(params) {
+ params = params || {};
+ var readableStream = this.streamTextContent(params);
+ return new Promise(function (resolve, reject) {
+ function pump() {
+ reader.read().then(function (_ref) {
+ var value = _ref.value,
+ done = _ref.done;
+
+ if (done) {
+ resolve(textContent);
+ return;
+ }
+ _util.Util.extendObj(textContent.styles, value.styles);
+ _util.Util.appendToArray(textContent.items, value.items);
+ pump();
+ }, reject);
+ }
+ var reader = readableStream.getReader();
+ var textContent = {
+ items: [],
+ styles: Object.create(null)
+ };
+ pump();
+ });
+ },
+ _destroy: function PDFPageProxy_destroy() {
+ this.destroyed = true;
+ this.transport.pageCache[this.pageIndex] = null;
+ var waitOn = [];
+ Object.keys(this.intentStates).forEach(function (intent) {
+ if (intent === 'oplist') {
+ return;
+ }
+ var intentState = this.intentStates[intent];
+ intentState.renderTasks.forEach(function (renderTask) {
+ var renderCompleted = renderTask.capability.promise.catch(function () {});
+ waitOn.push(renderCompleted);
+ renderTask.cancel();
+ });
+ }, this);
+ this.objs.clear();
+ this.annotationsPromise = null;
+ this.pendingCleanup = false;
+ return Promise.all(waitOn);
+ },
+ destroy: function destroy() {
+ (0, _util.deprecated)('page destroy method, use cleanup() instead');
+ this.cleanup();
+ },
+
+ cleanup: function PDFPageProxy_cleanup() {
+ this.pendingCleanup = true;
+ this._tryCleanup();
+ },
+ _tryCleanup: function PDFPageProxy_tryCleanup() {
+ if (!this.pendingCleanup || Object.keys(this.intentStates).some(function (intent) {
+ var intentState = this.intentStates[intent];
+ return intentState.renderTasks.length !== 0 || intentState.receivingOperatorList;
+ }, this)) {
+ return;
+ }
+ Object.keys(this.intentStates).forEach(function (intent) {
+ delete this.intentStates[intent];
+ }, this);
+ this.objs.clear();
+ this.annotationsPromise = null;
+ this.pendingCleanup = false;
+ },
+ _startRenderPage: function PDFPageProxy_startRenderPage(transparency, intent) {
+ var intentState = this.intentStates[intent];
+ if (intentState.displayReadyCapability) {
+ intentState.displayReadyCapability.resolve(transparency);
+ }
+ },
+ _renderPageChunk: function PDFPageProxy_renderPageChunk(operatorListChunk, intent) {
+ var intentState = this.intentStates[intent];
+ var i, ii;
+ for (i = 0, ii = operatorListChunk.length; i < ii; i++) {
+ intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
+ intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);
+ }
+ intentState.operatorList.lastChunk = operatorListChunk.lastChunk;
+ for (i = 0; i < intentState.renderTasks.length; i++) {
+ intentState.renderTasks[i].operatorListChanged();
+ }
+ if (operatorListChunk.lastChunk) {
+ intentState.receivingOperatorList = false;
+ this._tryCleanup();
+ }
+ }
+ };
+ return PDFPageProxy;
+}();
+
+var LoopbackPort = function () {
+ function LoopbackPort(defer) {
+ _classCallCheck(this, LoopbackPort);
+
+ this._listeners = [];
+ this._defer = defer;
+ this._deferred = Promise.resolve(undefined);
+ }
+
+ _createClass(LoopbackPort, [{
+ key: 'postMessage',
+ value: function postMessage(obj, transfers) {
+ var _this5 = this;
+
+ function cloneValue(value) {
+ if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) !== 'object' || value === null) {
+ return value;
+ }
+ if (cloned.has(value)) {
+ return cloned.get(value);
+ }
+ var result;
+ var buffer;
+ if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
+ var transferable = transfers && transfers.indexOf(buffer) >= 0;
+ if (value === buffer) {
+ result = value;
+ } else if (transferable) {
+ result = new value.constructor(buffer, value.byteOffset, value.byteLength);
+ } else {
+ result = new value.constructor(value);
+ }
+ cloned.set(value, result);
+ return result;
+ }
+ result = (0, _util.isArray)(value) ? [] : {};
+ cloned.set(value, result);
+ for (var i in value) {
+ var desc,
+ p = value;
+ while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
+ p = Object.getPrototypeOf(p);
+ }
+ if (typeof desc.value === 'undefined' || typeof desc.value === 'function') {
+ continue;
+ }
+ result[i] = cloneValue(desc.value);
+ }
+ return result;
+ }
+ if (!this._defer) {
+ this._listeners.forEach(function (listener) {
+ listener.call(this, { data: obj });
+ }, this);
+ return;
+ }
+ var cloned = new WeakMap();
+ var e = { data: cloneValue(obj) };
+ this._deferred.then(function () {
+ _this5._listeners.forEach(function (listener) {
+ listener.call(this, e);
+ }, _this5);
+ });
+ }
+ }, {
+ key: 'addEventListener',
+ value: function addEventListener(name, listener) {
+ this._listeners.push(listener);
+ }
+ }, {
+ key: 'removeEventListener',
+ value: function removeEventListener(name, listener) {
+ var i = this._listeners.indexOf(listener);
+ this._listeners.splice(i, 1);
+ }
+ }, {
+ key: 'terminate',
+ value: function terminate() {
+ this._listeners = [];
+ }
+ }]);
+
+ return LoopbackPort;
+}();
+
+var PDFWorker = function PDFWorkerClosure() {
+ var nextFakeWorkerId = 0;
+ function getWorkerSrc() {
+ if (typeof workerSrc !== 'undefined') {
+ return workerSrc;
+ }
+ if ((0, _dom_utils.getDefaultSetting)('workerSrc')) {
+ return (0, _dom_utils.getDefaultSetting)('workerSrc');
+ }
+ if (pdfjsFilePath) {
+ return pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
+ }
+ throw new Error('No PDFJS.workerSrc specified');
+ }
+ var fakeWorkerFilesLoadedCapability = void 0;
+ function setupFakeWorkerGlobal() {
+ var WorkerMessageHandler;
+ if (fakeWorkerFilesLoadedCapability) {
+ return fakeWorkerFilesLoadedCapability.promise;
+ }
+ fakeWorkerFilesLoadedCapability = (0, _util.createPromiseCapability)();
+ var loader = fakeWorkerFilesLoader || function (callback) {
+ _util.Util.loadScript(getWorkerSrc(), function () {
+ callback(window.pdfjsDistBuildPdfWorker.WorkerMessageHandler);
+ });
+ };
+ loader(fakeWorkerFilesLoadedCapability.resolve);
+ return fakeWorkerFilesLoadedCapability.promise;
+ }
+ function createCDNWrapper(url) {
+ var wrapper = 'importScripts(\'' + url + '\');';
+ return URL.createObjectURL(new Blob([wrapper]));
+ }
+ var pdfWorkerPorts = new WeakMap();
+ function PDFWorker(name, port) {
+ if (port && pdfWorkerPorts.has(port)) {
+ throw new Error('Cannot use more than one PDFWorker per port');
+ }
+ this.name = name;
+ this.destroyed = false;
+ this.postMessageTransfers = true;
+ this._readyCapability = (0, _util.createPromiseCapability)();
+ this._port = null;
+ this._webWorker = null;
+ this._messageHandler = null;
+ if (port) {
+ pdfWorkerPorts.set(port, this);
+ this._initializeFromPort(port);
+ return;
+ }
+ this._initialize();
+ }
+ PDFWorker.prototype = {
+ get promise() {
+ return this._readyCapability.promise;
+ },
+ get port() {
+ return this._port;
+ },
+ get messageHandler() {
+ return this._messageHandler;
+ },
+ _initializeFromPort: function PDFWorker_initializeFromPort(port) {
+ this._port = port;
+ this._messageHandler = new _util.MessageHandler('main', 'worker', port);
+ this._messageHandler.on('ready', function () {});
+ this._readyCapability.resolve();
+ },
+ _initialize: function PDFWorker_initialize() {
+ var _this6 = this;
+
+ if (!isWorkerDisabled && !(0, _dom_utils.getDefaultSetting)('disableWorker') && typeof Worker !== 'undefined') {
+ var workerSrc = getWorkerSrc();
+ try {
+ if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
+ workerSrc = createCDNWrapper(new URL(workerSrc, window.location).href);
+ }
+ var worker = new Worker(workerSrc);
+ var messageHandler = new _util.MessageHandler('main', 'worker', worker);
+ var terminateEarly = function terminateEarly() {
+ worker.removeEventListener('error', onWorkerError);
+ messageHandler.destroy();
+ worker.terminate();
+ if (_this6.destroyed) {
+ _this6._readyCapability.reject(new Error('Worker was destroyed'));
+ } else {
+ _this6._setupFakeWorker();
+ }
+ };
+ var onWorkerError = function onWorkerError() {
+ if (!_this6._webWorker) {
+ terminateEarly();
+ }
+ };
+ worker.addEventListener('error', onWorkerError);
+ messageHandler.on('test', function (data) {
+ worker.removeEventListener('error', onWorkerError);
+ if (_this6.destroyed) {
+ terminateEarly();
+ return;
+ }
+ var supportTypedArray = data && data.supportTypedArray;
+ if (supportTypedArray) {
+ _this6._messageHandler = messageHandler;
+ _this6._port = worker;
+ _this6._webWorker = worker;
+ if (!data.supportTransfers) {
+ _this6.postMessageTransfers = false;
+ isPostMessageTransfersDisabled = true;
+ }
+ _this6._readyCapability.resolve();
+ messageHandler.send('configure', { verbosity: (0, _util.getVerbosityLevel)() });
+ } else {
+ _this6._setupFakeWorker();
+ messageHandler.destroy();
+ worker.terminate();
+ }
+ });
+ messageHandler.on('console_log', function (data) {
+ console.log.apply(console, data);
+ });
+ messageHandler.on('console_error', function (data) {
+ console.error.apply(console, data);
+ });
+ messageHandler.on('ready', function (data) {
+ worker.removeEventListener('error', onWorkerError);
+ if (_this6.destroyed) {
+ terminateEarly();
+ return;
+ }
+ try {
+ sendTest();
+ } catch (e) {
+ _this6._setupFakeWorker();
+ }
+ });
+ var sendTest = function sendTest() {
+ var postMessageTransfers = (0, _dom_utils.getDefaultSetting)('postMessageTransfers') && !isPostMessageTransfersDisabled;
+ var testObj = new Uint8Array([postMessageTransfers ? 255 : 0]);
+ try {
+ messageHandler.send('test', testObj, [testObj.buffer]);
+ } catch (ex) {
+ (0, _util.info)('Cannot use postMessage transfers');
+ testObj[0] = 0;
+ messageHandler.send('test', testObj);
+ }
+ };
+ sendTest();
+ return;
+ } catch (e) {
+ (0, _util.info)('The worker has been disabled.');
+ }
+ }
+ this._setupFakeWorker();
+ },
+ _setupFakeWorker: function PDFWorker_setupFakeWorker() {
+ var _this7 = this;
+
+ if (!isWorkerDisabled && !(0, _dom_utils.getDefaultSetting)('disableWorker')) {
+ (0, _util.warn)('Setting up fake worker.');
+ isWorkerDisabled = true;
+ }
+ setupFakeWorkerGlobal().then(function (WorkerMessageHandler) {
+ if (_this7.destroyed) {
+ _this7._readyCapability.reject(new Error('Worker was destroyed'));
+ return;
+ }
+ var isTypedArraysPresent = Uint8Array !== Float32Array;
+ var port = new LoopbackPort(isTypedArraysPresent);
+ _this7._port = port;
+ var id = 'fake' + nextFakeWorkerId++;
+ var workerHandler = new _util.MessageHandler(id + '_worker', id, port);
+ WorkerMessageHandler.setup(workerHandler, port);
+ var messageHandler = new _util.MessageHandler(id, id + '_worker', port);
+ _this7._messageHandler = messageHandler;
+ _this7._readyCapability.resolve();
+ });
+ },
+ destroy: function PDFWorker_destroy() {
+ this.destroyed = true;
+ if (this._webWorker) {
+ this._webWorker.terminate();
+ this._webWorker = null;
+ }
+ pdfWorkerPorts.delete(this._port);
+ this._port = null;
+ if (this._messageHandler) {
+ this._messageHandler.destroy();
+ this._messageHandler = null;
+ }
+ }
+ };
+ PDFWorker.fromPort = function (port) {
+ if (pdfWorkerPorts.has(port)) {
+ return pdfWorkerPorts.get(port);
+ }
+ return new PDFWorker(null, port);
+ };
+ return PDFWorker;
+}();
+var WorkerTransport = function WorkerTransportClosure() {
+ function WorkerTransport(messageHandler, loadingTask, networkStream, CMapReaderFactory) {
+ this.messageHandler = messageHandler;
+ this.loadingTask = loadingTask;
+ this.commonObjs = new PDFObjects();
+ this.fontLoader = new _font_loader.FontLoader(loadingTask.docId);
+ this.CMapReaderFactory = new CMapReaderFactory({
+ baseUrl: (0, _dom_utils.getDefaultSetting)('cMapUrl'),
+ isCompressed: (0, _dom_utils.getDefaultSetting)('cMapPacked')
+ });
+ this.destroyed = false;
+ this.destroyCapability = null;
+ this._passwordCapability = null;
+ this._networkStream = networkStream;
+ this._fullReader = null;
+ this._lastProgress = null;
+ this.pageCache = [];
+ this.pagePromises = [];
+ this.downloadInfoCapability = (0, _util.createPromiseCapability)();
+ this.setupMessageHandler();
+ }
+ WorkerTransport.prototype = {
+ destroy: function WorkerTransport_destroy() {
+ var _this8 = this;
+
+ if (this.destroyCapability) {
+ return this.destroyCapability.promise;
+ }
+ this.destroyed = true;
+ this.destroyCapability = (0, _util.createPromiseCapability)();
+ if (this._passwordCapability) {
+ this._passwordCapability.reject(new Error('Worker was destroyed during onPassword callback'));
+ }
+ var waitOn = [];
+ this.pageCache.forEach(function (page) {
+ if (page) {
+ waitOn.push(page._destroy());
+ }
+ });
+ this.pageCache = [];
+ this.pagePromises = [];
+ var terminated = this.messageHandler.sendWithPromise('Terminate', null);
+ waitOn.push(terminated);
+ Promise.all(waitOn).then(function () {
+ _this8.fontLoader.clear();
+ if (_this8._networkStream) {
+ _this8._networkStream.cancelAllRequests();
+ }
+ if (_this8.messageHandler) {
+ _this8.messageHandler.destroy();
+ _this8.messageHandler = null;
+ }
+ _this8.destroyCapability.resolve();
+ }, this.destroyCapability.reject);
+ return this.destroyCapability.promise;
+ },
+ setupMessageHandler: function WorkerTransport_setupMessageHandler() {
+ var messageHandler = this.messageHandler;
+ var loadingTask = this.loadingTask;
+ messageHandler.on('GetReader', function (data, sink) {
+ var _this9 = this;
+
+ (0, _util.assert)(this._networkStream);
+ this._fullReader = this._networkStream.getFullReader();
+ this._fullReader.onProgress = function (evt) {
+ _this9._lastProgress = {
+ loaded: evt.loaded,
+ total: evt.total
+ };
+ };
+ sink.onPull = function () {
+ _this9._fullReader.read().then(function (_ref2) {
+ var value = _ref2.value,
+ done = _ref2.done;
+
+ if (done) {
+ sink.close();
+ return;
+ }
+ (0, _util.assert)((0, _util.isArrayBuffer)(value));
+ sink.enqueue(new Uint8Array(value), 1, [value]);
+ }).catch(function (reason) {
+ sink.error(reason);
+ });
+ };
+ sink.onCancel = function (reason) {
+ _this9._fullReader.cancel(reason);
+ };
+ }, this);
+ messageHandler.on('ReaderHeadersReady', function (data) {
+ var _this10 = this;
+
+ var headersCapability = (0, _util.createPromiseCapability)();
+ var fullReader = this._fullReader;
+ fullReader.headersReady.then(function () {
+ if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
+ if (_this10._lastProgress) {
+ var _loadingTask = _this10.loadingTask;
+ if (_loadingTask.onProgress) {
+ _loadingTask.onProgress(_this10._lastProgress);
+ }
+ }
+ fullReader.onProgress = function (evt) {
+ var loadingTask = _this10.loadingTask;
+ if (loadingTask.onProgress) {
+ loadingTask.onProgress({
+ loaded: evt.loaded,
+ total: evt.total
+ });
+ }
+ };
+ }
+ headersCapability.resolve({
+ isStreamingSupported: fullReader.isStreamingSupported,
+ isRangeSupported: fullReader.isRangeSupported,
+ contentLength: fullReader.contentLength
+ });
+ }, headersCapability.reject);
+ return headersCapability.promise;
+ }, this);
+ messageHandler.on('GetRangeReader', function (data, sink) {
+ (0, _util.assert)(this._networkStream);
+ var _rangeReader = this._networkStream.getRangeReader(data.begin, data.end);
+ sink.onPull = function () {
+ _rangeReader.read().then(function (_ref3) {
+ var value = _ref3.value,
+ done = _ref3.done;
+
+ if (done) {
+ sink.close();
+ return;
+ }
+ (0, _util.assert)((0, _util.isArrayBuffer)(value));
+ sink.enqueue(new Uint8Array(value), 1, [value]);
+ }).catch(function (reason) {
+ sink.error(reason);
+ });
+ };
+ sink.onCancel = function (reason) {
+ _rangeReader.cancel(reason);
+ };
+ }, this);
+ messageHandler.on('GetDoc', function transportDoc(data) {
+ var pdfInfo = data.pdfInfo;
+ this.numPages = data.pdfInfo.numPages;
+ var loadingTask = this.loadingTask;
+ var pdfDocument = new PDFDocumentProxy(pdfInfo, this, loadingTask);
+ this.pdfDocument = pdfDocument;
+ loadingTask._capability.resolve(pdfDocument);
+ }, this);
+ messageHandler.on('PasswordRequest', function transportPasswordRequest(exception) {
+ var _this11 = this;
+
+ this._passwordCapability = (0, _util.createPromiseCapability)();
+ if (loadingTask.onPassword) {
+ var updatePassword = function updatePassword(password) {
+ _this11._passwordCapability.resolve({ password: password });
+ };
+ loadingTask.onPassword(updatePassword, exception.code);
+ } else {
+ this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
+ }
+ return this._passwordCapability.promise;
+ }, this);
+ messageHandler.on('PasswordException', function transportPasswordException(exception) {
+ loadingTask._capability.reject(new _util.PasswordException(exception.message, exception.code));
+ }, this);
+ messageHandler.on('InvalidPDF', function transportInvalidPDF(exception) {
+ this.loadingTask._capability.reject(new _util.InvalidPDFException(exception.message));
+ }, this);
+ messageHandler.on('MissingPDF', function transportMissingPDF(exception) {
+ this.loadingTask._capability.reject(new _util.MissingPDFException(exception.message));
+ }, this);
+ messageHandler.on('UnexpectedResponse', function transportUnexpectedResponse(exception) {
+ this.loadingTask._capability.reject(new _util.UnexpectedResponseException(exception.message, exception.status));
+ }, this);
+ messageHandler.on('UnknownError', function transportUnknownError(exception) {
+ this.loadingTask._capability.reject(new _util.UnknownErrorException(exception.message, exception.details));
+ }, this);
+ messageHandler.on('DataLoaded', function transportPage(data) {
+ this.downloadInfoCapability.resolve(data);
+ }, this);
+ messageHandler.on('PDFManagerReady', function transportPage(data) {}, this);
+ messageHandler.on('StartRenderPage', function transportRender(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var page = this.pageCache[data.pageIndex];
+ page.stats.timeEnd('Page Request');
+ page._startRenderPage(data.transparency, data.intent);
+ }, this);
+ messageHandler.on('RenderPageChunk', function transportRender(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var page = this.pageCache[data.pageIndex];
+ page._renderPageChunk(data.operatorList, data.intent);
+ }, this);
+ messageHandler.on('commonobj', function transportObj(data) {
+ var _this12 = this;
+
+ if (this.destroyed) {
+ return;
+ }
+ var id = data[0];
+ var type = data[1];
+ if (this.commonObjs.hasData(id)) {
+ return;
+ }
+ switch (type) {
+ case 'Font':
+ var exportedData = data[2];
+ if ('error' in exportedData) {
+ var exportedError = exportedData.error;
+ (0, _util.warn)('Error during font loading: ' + exportedError);
+ this.commonObjs.resolve(id, exportedError);
+ break;
+ }
+ var fontRegistry = null;
+ if ((0, _dom_utils.getDefaultSetting)('pdfBug') && _util.globalScope.FontInspector && _util.globalScope['FontInspector'].enabled) {
+ fontRegistry = {
+ registerFont: function registerFont(font, url) {
+ _util.globalScope['FontInspector'].fontAdded(font, url);
+ }
+ };
+ }
+ var font = new _font_loader.FontFaceObject(exportedData, {
+ isEvalSuported: (0, _dom_utils.getDefaultSetting)('isEvalSupported'),
+ disableFontFace: (0, _dom_utils.getDefaultSetting)('disableFontFace'),
+ fontRegistry: fontRegistry
+ });
+ var fontReady = function fontReady(fontObjs) {
+ _this12.commonObjs.resolve(id, font);
+ };
+ this.fontLoader.bind([font], fontReady);
+ break;
+ case 'FontPath':
+ this.commonObjs.resolve(id, data[2]);
+ break;
+ default:
+ throw new Error('Got unknown common object type ' + type);
+ }
+ }, this);
+ messageHandler.on('obj', function transportObj(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var id = data[0];
+ var pageIndex = data[1];
+ var type = data[2];
+ var pageProxy = this.pageCache[pageIndex];
+ var imageData;
+ if (pageProxy.objs.hasData(id)) {
+ return;
+ }
+ switch (type) {
+ case 'JpegStream':
+ imageData = data[3];
+ (0, _util.loadJpegStream)(id, imageData, pageProxy.objs);
+ break;
+ case 'Image':
+ imageData = data[3];
+ pageProxy.objs.resolve(id, imageData);
+ var MAX_IMAGE_SIZE_TO_STORE = 8000000;
+ if (imageData && 'data' in imageData && imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
+ pageProxy.cleanupAfterRender = true;
+ }
+ break;
+ default:
+ throw new Error('Got unknown object type ' + type);
+ }
+ }, this);
+ messageHandler.on('DocProgress', function transportDocProgress(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var loadingTask = this.loadingTask;
+ if (loadingTask.onProgress) {
+ loadingTask.onProgress({
+ loaded: data.loaded,
+ total: data.total
+ });
+ }
+ }, this);
+ messageHandler.on('PageError', function transportError(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var page = this.pageCache[data.pageNum - 1];
+ var intentState = page.intentStates[data.intent];
+ if (intentState.displayReadyCapability) {
+ intentState.displayReadyCapability.reject(data.error);
+ } else {
+ throw new Error(data.error);
+ }
+ if (intentState.operatorList) {
+ intentState.operatorList.lastChunk = true;
+ for (var i = 0; i < intentState.renderTasks.length; i++) {
+ intentState.renderTasks[i].operatorListChanged();
+ }
+ }
+ }, this);
+ messageHandler.on('UnsupportedFeature', function transportUnsupportedFeature(data) {
+ if (this.destroyed) {
+ return;
+ }
+ var featureId = data.featureId;
+ var loadingTask = this.loadingTask;
+ if (loadingTask.onUnsupportedFeature) {
+ loadingTask.onUnsupportedFeature(featureId);
+ }
+ _UnsupportedManager.notify(featureId);
+ }, this);
+ messageHandler.on('JpegDecode', function (data) {
+ if (this.destroyed) {
+ return Promise.reject(new Error('Worker was destroyed'));
+ }
+ if (typeof document === 'undefined') {
+ return Promise.reject(new Error('"document" is not defined.'));
+ }
+ var imageUrl = data[0];
+ var components = data[1];
+ if (components !== 3 && components !== 1) {
+ return Promise.reject(new Error('Only 3 components or 1 component can be returned'));
+ }
+ return new Promise(function (resolve, reject) {
+ var img = new Image();
+ img.onload = function () {
+ var width = img.width;
+ var height = img.height;
+ var size = width * height;
+ var rgbaLength = size * 4;
+ var buf = new Uint8Array(size * components);
+ var tmpCanvas = document.createElement('canvas');
+ tmpCanvas.width = width;
+ tmpCanvas.height = height;
+ var tmpCtx = tmpCanvas.getContext('2d');
+ tmpCtx.drawImage(img, 0, 0);
+ var data = tmpCtx.getImageData(0, 0, width, height).data;
+ var i, j;
+ if (components === 3) {
+ for (i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
+ buf[j] = data[i];
+ buf[j + 1] = data[i + 1];
+ buf[j + 2] = data[i + 2];
+ }
+ } else if (components === 1) {
+ for (i = 0, j = 0; i < rgbaLength; i += 4, j++) {
+ buf[j] = data[i];
+ }
+ }
+ resolve({
+ data: buf,
+ width: width,
+ height: height
+ });
+ };
+ img.onerror = function () {
+ reject(new Error('JpegDecode failed to load image'));
+ };
+ img.src = imageUrl;
+ });
+ }, this);
+ messageHandler.on('FetchBuiltInCMap', function (data) {
+ if (this.destroyed) {
+ return Promise.reject(new Error('Worker was destroyed'));
+ }
+ return this.CMapReaderFactory.fetch({ name: data.name });
+ }, this);
+ },
+ getData: function WorkerTransport_getData() {
+ return this.messageHandler.sendWithPromise('GetData', null);
+ },
+ getPage: function WorkerTransport_getPage(pageNumber, capability) {
+ var _this13 = this;
+
+ if (!(0, _util.isInt)(pageNumber) || pageNumber <= 0 || pageNumber > this.numPages) {
+ return Promise.reject(new Error('Invalid page request'));
+ }
+ var pageIndex = pageNumber - 1;
+ if (pageIndex in this.pagePromises) {
+ return this.pagePromises[pageIndex];
+ }
+ var promise = this.messageHandler.sendWithPromise('GetPage', { pageIndex: pageIndex }).then(function (pageInfo) {
+ if (_this13.destroyed) {
+ throw new Error('Transport destroyed');
+ }
+ var page = new PDFPageProxy(pageIndex, pageInfo, _this13);
+ _this13.pageCache[pageIndex] = page;
+ return page;
+ });
+ this.pagePromises[pageIndex] = promise;
+ return promise;
+ },
+ getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {
+ return this.messageHandler.sendWithPromise('GetPageIndex', { ref: ref }).catch(function (reason) {
+ return Promise.reject(new Error(reason));
+ });
+ },
+ getAnnotations: function WorkerTransport_getAnnotations(pageIndex, intent) {
+ return this.messageHandler.sendWithPromise('GetAnnotations', {
+ pageIndex: pageIndex,
+ intent: intent
+ });
+ },
+ getDestinations: function WorkerTransport_getDestinations() {
+ return this.messageHandler.sendWithPromise('GetDestinations', null);
+ },
+ getDestination: function WorkerTransport_getDestination(id) {
+ return this.messageHandler.sendWithPromise('GetDestination', { id: id });
+ },
+ getPageLabels: function WorkerTransport_getPageLabels() {
+ return this.messageHandler.sendWithPromise('GetPageLabels', null);
+ },
+ getPageMode: function getPageMode() {
+ return this.messageHandler.sendWithPromise('GetPageMode', null);
+ },
+
+ getAttachments: function WorkerTransport_getAttachments() {
+ return this.messageHandler.sendWithPromise('GetAttachments', null);
+ },
+ getJavaScript: function WorkerTransport_getJavaScript() {
+ return this.messageHandler.sendWithPromise('GetJavaScript', null);
+ },
+ getOutline: function WorkerTransport_getOutline() {
+ return this.messageHandler.sendWithPromise('GetOutline', null);
+ },
+ getMetadata: function WorkerTransport_getMetadata() {
+ return this.messageHandler.sendWithPromise('GetMetadata', null).then(function transportMetadata(results) {
+ return {
+ info: results[0],
+ metadata: results[1] ? new _metadata.Metadata(results[1]) : null
+ };
+ });
+ },
+ getStats: function WorkerTransport_getStats() {
+ return this.messageHandler.sendWithPromise('GetStats', null);
+ },
+ startCleanup: function WorkerTransport_startCleanup() {
+ var _this14 = this;
+
+ this.messageHandler.sendWithPromise('Cleanup', null).then(function () {
+ for (var i = 0, ii = _this14.pageCache.length; i < ii; i++) {
+ var page = _this14.pageCache[i];
+ if (page) {
+ page.cleanup();
+ }
+ }
+ _this14.commonObjs.clear();
+ _this14.fontLoader.clear();
+ });
+ }
+ };
+ return WorkerTransport;
+}();
+var PDFObjects = function PDFObjectsClosure() {
+ function PDFObjects() {
+ this.objs = Object.create(null);
+ }
+ PDFObjects.prototype = {
+ ensureObj: function PDFObjects_ensureObj(objId) {
+ if (this.objs[objId]) {
+ return this.objs[objId];
+ }
+ var obj = {
+ capability: (0, _util.createPromiseCapability)(),
+ data: null,
+ resolved: false
+ };
+ this.objs[objId] = obj;
+ return obj;
+ },
+ get: function PDFObjects_get(objId, callback) {
+ if (callback) {
+ this.ensureObj(objId).capability.promise.then(callback);
+ return null;
+ }
+ var obj = this.objs[objId];
+ if (!obj || !obj.resolved) {
+ throw new Error('Requesting object that isn\'t resolved yet ' + objId);
+ }
+ return obj.data;
+ },
+ resolve: function PDFObjects_resolve(objId, data) {
+ var obj = this.ensureObj(objId);
+ obj.resolved = true;
+ obj.data = data;
+ obj.capability.resolve(data);
+ },
+ isResolved: function PDFObjects_isResolved(objId) {
+ var objs = this.objs;
+ if (!objs[objId]) {
+ return false;
+ }
+ return objs[objId].resolved;
+ },
+ hasData: function PDFObjects_hasData(objId) {
+ return this.isResolved(objId);
+ },
+ getData: function PDFObjects_getData(objId) {
+ var objs = this.objs;
+ if (!objs[objId] || !objs[objId].resolved) {
+ return null;
+ }
+ return objs[objId].data;
+ },
+ clear: function PDFObjects_clear() {
+ this.objs = Object.create(null);
+ }
+ };
+ return PDFObjects;
+}();
+var RenderTask = function RenderTaskClosure() {
+ function RenderTask(internalRenderTask) {
+ this._internalRenderTask = internalRenderTask;
+ this.onContinue = null;
+ }
+ RenderTask.prototype = {
+ get promise() {
+ return this._internalRenderTask.capability.promise;
+ },
+ cancel: function RenderTask_cancel() {
+ this._internalRenderTask.cancel();
+ },
+ then: function RenderTask_then(onFulfilled, onRejected) {
+ return this.promise.then.apply(this.promise, arguments);
+ }
+ };
+ return RenderTask;
+}();
+var InternalRenderTask = function InternalRenderTaskClosure() {
+ var canvasInRendering = new WeakMap();
+ function InternalRenderTask(callback, params, objs, commonObjs, operatorList, pageNumber, canvasFactory) {
+ this.callback = callback;
+ this.params = params;
+ this.objs = objs;
+ this.commonObjs = commonObjs;
+ this.operatorListIdx = null;
+ this.operatorList = operatorList;
+ this.pageNumber = pageNumber;
+ this.canvasFactory = canvasFactory;
+ this.running = false;
+ this.graphicsReadyCallback = null;
+ this.graphicsReady = false;
+ this.useRequestAnimationFrame = false;
+ this.cancelled = false;
+ this.capability = (0, _util.createPromiseCapability)();
+ this.task = new RenderTask(this);
+ this._continueBound = this._continue.bind(this);
+ this._scheduleNextBound = this._scheduleNext.bind(this);
+ this._nextBound = this._next.bind(this);
+ this._canvas = params.canvasContext.canvas;
+ }
+ InternalRenderTask.prototype = {
+ initializeGraphics: function InternalRenderTask_initializeGraphics(transparency) {
+ if (this._canvas) {
+ if (canvasInRendering.has(this._canvas)) {
+ throw new Error('Cannot use the same canvas during multiple render() operations. ' + 'Use different canvas or ensure previous operations were ' + 'cancelled or completed.');
+ }
+ canvasInRendering.set(this._canvas, this);
+ }
+ if (this.cancelled) {
+ return;
+ }
+ if ((0, _dom_utils.getDefaultSetting)('pdfBug') && _util.globalScope.StepperManager && _util.globalScope.StepperManager.enabled) {
+ this.stepper = _util.globalScope.StepperManager.create(this.pageNumber - 1);
+ this.stepper.init(this.operatorList);
+ this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
+ }
+ var params = this.params;
+ this.gfx = new _canvas.CanvasGraphics(params.canvasContext, this.commonObjs, this.objs, this.canvasFactory, params.imageLayer);
+ this.gfx.beginDrawing({
+ transform: params.transform,
+ viewport: params.viewport,
+ transparency: transparency,
+ background: params.background
+ });
+ this.operatorListIdx = 0;
+ this.graphicsReady = true;
+ if (this.graphicsReadyCallback) {
+ this.graphicsReadyCallback();
+ }
+ },
+ cancel: function InternalRenderTask_cancel() {
+ this.running = false;
+ this.cancelled = true;
+ if (this._canvas) {
+ canvasInRendering.delete(this._canvas);
+ }
+ if ((0, _dom_utils.getDefaultSetting)('pdfjsNext')) {
+ this.callback(new _dom_utils.RenderingCancelledException('Rendering cancelled, page ' + this.pageNumber, 'canvas'));
+ } else {
+ this.callback('cancelled');
+ }
+ },
+ operatorListChanged: function InternalRenderTask_operatorListChanged() {
+ if (!this.graphicsReady) {
+ if (!this.graphicsReadyCallback) {
+ this.graphicsReadyCallback = this._continueBound;
+ }
+ return;
+ }
+ if (this.stepper) {
+ this.stepper.updateOperatorList(this.operatorList);
+ }
+ if (this.running) {
+ return;
+ }
+ this._continue();
+ },
+ _continue: function InternalRenderTask__continue() {
+ this.running = true;
+ if (this.cancelled) {
+ return;
+ }
+ if (this.task.onContinue) {
+ this.task.onContinue(this._scheduleNextBound);
+ } else {
+ this._scheduleNext();
+ }
+ },
+ _scheduleNext: function InternalRenderTask__scheduleNext() {
+ if (this.useRequestAnimationFrame && typeof window !== 'undefined') {
+ window.requestAnimationFrame(this._nextBound);
+ } else {
+ Promise.resolve(undefined).then(this._nextBound);
+ }
+ },
+ _next: function InternalRenderTask__next() {
+ if (this.cancelled) {
+ return;
+ }
+ this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList, this.operatorListIdx, this._continueBound, this.stepper);
+ if (this.operatorListIdx === this.operatorList.argsArray.length) {
+ this.running = false;
+ if (this.operatorList.lastChunk) {
+ this.gfx.endDrawing();
+ if (this._canvas) {
+ canvasInRendering.delete(this._canvas);
+ }
+ this.callback();
+ }
+ }
+ }
+ };
+ return InternalRenderTask;
+}();
+var _UnsupportedManager = function UnsupportedManagerClosure() {
+ var listeners = [];
+ return {
+ listen: function listen(cb) {
+ (0, _util.deprecated)('Global UnsupportedManager.listen is used: ' + ' use PDFDocumentLoadingTask.onUnsupportedFeature instead');
+ listeners.push(cb);
+ },
+ notify: function notify(featureId) {
+ for (var i = 0, ii = listeners.length; i < ii; i++) {
+ listeners[i](featureId);
+ }
+ }
+ };
+}();
+var version, build;
+{
+ exports.version = version = '1.9.426';
+ exports.build = build = '2558a58d';
+}
+exports.getDocument = getDocument;
+exports.LoopbackPort = LoopbackPort;
+exports.PDFDataRangeTransport = PDFDataRangeTransport;
+exports.PDFWorker = PDFWorker;
+exports.PDFDocumentProxy = PDFDocumentProxy;
+exports.PDFPageProxy = PDFPageProxy;
+exports.setPDFNetworkStreamClass = setPDFNetworkStreamClass;
+exports._UnsupportedManager = _UnsupportedManager;
+exports.version = version;
+exports.build = build;
+
+/***/ }),
+/* 3 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.AnnotationLayer = undefined;
+
+var _dom_utils = __w_pdfjs_require__(1);
+
+var _util = __w_pdfjs_require__(0);
+
+function AnnotationElementFactory() {}
+AnnotationElementFactory.prototype = {
+ create: function AnnotationElementFactory_create(parameters) {
+ var subtype = parameters.data.annotationType;
+ switch (subtype) {
+ case _util.AnnotationType.LINK:
+ return new LinkAnnotationElement(parameters);
+ case _util.AnnotationType.TEXT:
+ return new TextAnnotationElement(parameters);
+ case _util.AnnotationType.WIDGET:
+ var fieldType = parameters.data.fieldType;
+ switch (fieldType) {
+ case 'Tx':
+ return new TextWidgetAnnotationElement(parameters);
+ case 'Btn':
+ if (parameters.data.radioButton) {
+ return new RadioButtonWidgetAnnotationElement(parameters);
+ } else if (parameters.data.checkBox) {
+ return new CheckboxWidgetAnnotationElement(parameters);
+ }
+ (0, _util.warn)('Unimplemented button widget annotation: pushbutton');
+ break;
+ case 'Ch':
+ return new ChoiceWidgetAnnotationElement(parameters);
+ }
+ return new WidgetAnnotationElement(parameters);
+ case _util.AnnotationType.POPUP:
+ return new PopupAnnotationElement(parameters);
+ case _util.AnnotationType.LINE:
+ return new LineAnnotationElement(parameters);
+ case _util.AnnotationType.HIGHLIGHT:
+ return new HighlightAnnotationElement(parameters);
+ case _util.AnnotationType.UNDERLINE:
+ return new UnderlineAnnotationElement(parameters);
+ case _util.AnnotationType.SQUIGGLY:
+ return new SquigglyAnnotationElement(parameters);
+ case _util.AnnotationType.STRIKEOUT:
+ return new StrikeOutAnnotationElement(parameters);
+ case _util.AnnotationType.FILEATTACHMENT:
+ return new FileAttachmentAnnotationElement(parameters);
+ default:
+ return new AnnotationElement(parameters);
+ }
+ }
+};
+var AnnotationElement = function AnnotationElementClosure() {
+ function AnnotationElement(parameters, isRenderable, ignoreBorder) {
+ this.isRenderable = isRenderable || false;
+ this.data = parameters.data;
+ this.layer = parameters.layer;
+ this.page = parameters.page;
+ this.viewport = parameters.viewport;
+ this.linkService = parameters.linkService;
+ this.downloadManager = parameters.downloadManager;
+ this.imageResourcesPath = parameters.imageResourcesPath;
+ this.renderInteractiveForms = parameters.renderInteractiveForms;
+ if (isRenderable) {
+ this.container = this._createContainer(ignoreBorder);
+ }
+ }
+ AnnotationElement.prototype = {
+ _createContainer: function AnnotationElement_createContainer(ignoreBorder) {
+ var data = this.data,
+ page = this.page,
+ viewport = this.viewport;
+ var container = document.createElement('section');
+ var width = data.rect[2] - data.rect[0];
+ var height = data.rect[3] - data.rect[1];
+ container.setAttribute('data-annotation-id', data.id);
+ var rect = _util.Util.normalizeRect([data.rect[0], page.view[3] - data.rect[1] + page.view[1], data.rect[2], page.view[3] - data.rect[3] + page.view[1]]);
+ _dom_utils.CustomStyle.setProp('transform', container, 'matrix(' + viewport.transform.join(',') + ')');
+ _dom_utils.CustomStyle.setProp('transformOrigin', container, -rect[0] + 'px ' + -rect[1] + 'px');
+ if (!ignoreBorder && data.borderStyle.width > 0) {
+ container.style.borderWidth = data.borderStyle.width + 'px';
+ if (data.borderStyle.style !== _util.AnnotationBorderStyleType.UNDERLINE) {
+ width = width - 2 * data.borderStyle.width;
+ height = height - 2 * data.borderStyle.width;
+ }
+ var horizontalRadius = data.borderStyle.horizontalCornerRadius;
+ var verticalRadius = data.borderStyle.verticalCornerRadius;
+ if (horizontalRadius > 0 || verticalRadius > 0) {
+ var radius = horizontalRadius + 'px / ' + verticalRadius + 'px';
+ _dom_utils.CustomStyle.setProp('borderRadius', container, radius);
+ }
+ switch (data.borderStyle.style) {
+ case _util.AnnotationBorderStyleType.SOLID:
+ container.style.borderStyle = 'solid';
+ break;
+ case _util.AnnotationBorderStyleType.DASHED:
+ container.style.borderStyle = 'dashed';
+ break;
+ case _util.AnnotationBorderStyleType.BEVELED:
+ (0, _util.warn)('Unimplemented border style: beveled');
+ break;
+ case _util.AnnotationBorderStyleType.INSET:
+ (0, _util.warn)('Unimplemented border style: inset');
+ break;
+ case _util.AnnotationBorderStyleType.UNDERLINE:
+ container.style.borderBottomStyle = 'solid';
+ break;
+ default:
+ break;
+ }
+ if (data.color) {
+ container.style.borderColor = _util.Util.makeCssRgb(data.color[0] | 0, data.color[1] | 0, data.color[2] | 0);
+ } else {
+ container.style.borderWidth = 0;
+ }
+ }
+ container.style.left = rect[0] + 'px';
+ container.style.top = rect[1] + 'px';
+ container.style.width = width + 'px';
+ container.style.height = height + 'px';
+ return container;
+ },
+ _createPopup: function AnnotationElement_createPopup(container, trigger, data) {
+ if (!trigger) {
+ trigger = document.createElement('div');
+ trigger.style.height = container.style.height;
+ trigger.style.width = container.style.width;
+ container.appendChild(trigger);
+ }
+ var popupElement = new PopupElement({
+ container: container,
+ trigger: trigger,
+ color: data.color,
+ title: data.title,
+ contents: data.contents,
+ hideWrapper: true
+ });
+ var popup = popupElement.render();
+ popup.style.left = container.style.width;
+ container.appendChild(popup);
+ },
+ render: function AnnotationElement_render() {
+ throw new Error('Abstract method AnnotationElement.render called');
+ }
+ };
+ return AnnotationElement;
+}();
+var LinkAnnotationElement = function LinkAnnotationElementClosure() {
+ function LinkAnnotationElement(parameters) {
+ AnnotationElement.call(this, parameters, true);
+ }
+ _util.Util.inherit(LinkAnnotationElement, AnnotationElement, {
+ render: function LinkAnnotationElement_render() {
+ this.container.className = 'linkAnnotation';
+ var link = document.createElement('a');
+ (0, _dom_utils.addLinkAttributes)(link, {
+ url: this.data.url,
+ target: this.data.newWindow ? _dom_utils.LinkTarget.BLANK : undefined
+ });
+ if (!this.data.url) {
+ if (this.data.action) {
+ this._bindNamedAction(link, this.data.action);
+ } else {
+ this._bindLink(link, this.data.dest);
+ }
+ }
+ this.container.appendChild(link);
+ return this.container;
+ },
+ _bindLink: function _bindLink(link, destination) {
+ var _this = this;
+
+ link.href = this.linkService.getDestinationHash(destination);
+ link.onclick = function () {
+ if (destination) {
+ _this.linkService.navigateTo(destination);
+ }
+ return false;
+ };
+ if (destination) {
+ link.className = 'internalLink';
+ }
+ },
+ _bindNamedAction: function _bindNamedAction(link, action) {
+ var _this2 = this;
+
+ link.href = this.linkService.getAnchorUrl('');
+ link.onclick = function () {
+ _this2.linkService.executeNamedAction(action);
+ return false;
+ };
+ link.className = 'internalLink';
+ }
+ });
+ return LinkAnnotationElement;
+}();
+var TextAnnotationElement = function TextAnnotationElementClosure() {
+ function TextAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable);
+ }
+ _util.Util.inherit(TextAnnotationElement, AnnotationElement, {
+ render: function TextAnnotationElement_render() {
+ this.container.className = 'textAnnotation';
+ var image = document.createElement('img');
+ image.style.height = this.container.style.height;
+ image.style.width = this.container.style.width;
+ image.src = this.imageResourcesPath + 'annotation-' + this.data.name.toLowerCase() + '.svg';
+ image.alt = '[{{type}} Annotation]';
+ image.dataset.l10nId = 'text_annotation_type';
+ image.dataset.l10nArgs = JSON.stringify({ type: this.data.name });
+ if (!this.data.hasPopup) {
+ this._createPopup(this.container, image, this.data);
+ }
+ this.container.appendChild(image);
+ return this.container;
+ }
+ });
+ return TextAnnotationElement;
+}();
+var WidgetAnnotationElement = function WidgetAnnotationElementClosure() {
+ function WidgetAnnotationElement(parameters, isRenderable) {
+ AnnotationElement.call(this, parameters, isRenderable);
+ }
+ _util.Util.inherit(WidgetAnnotationElement, AnnotationElement, {
+ render: function WidgetAnnotationElement_render() {
+ return this.container;
+ }
+ });
+ return WidgetAnnotationElement;
+}();
+var TextWidgetAnnotationElement = function TextWidgetAnnotationElementClosure() {
+ var TEXT_ALIGNMENT = ['left', 'center', 'right'];
+ function TextWidgetAnnotationElement(parameters) {
+ var isRenderable = parameters.renderInteractiveForms || !parameters.data.hasAppearance && !!parameters.data.fieldValue;
+ WidgetAnnotationElement.call(this, parameters, isRenderable);
+ }
+ _util.Util.inherit(TextWidgetAnnotationElement, WidgetAnnotationElement, {
+ render: function TextWidgetAnnotationElement_render() {
+ this.container.className = 'textWidgetAnnotation';
+ var element = null;
+ if (this.renderInteractiveForms) {
+ if (this.data.multiLine) {
+ element = document.createElement('textarea');
+ element.textContent = this.data.fieldValue;
+ } else {
+ element = document.createElement('input');
+ element.type = 'text';
+ element.setAttribute('value', this.data.fieldValue);
+ }
+ element.disabled = this.data.readOnly;
+ if (this.data.maxLen !== null) {
+ element.maxLength = this.data.maxLen;
+ }
+ if (this.data.comb) {
+ var fieldWidth = this.data.rect[2] - this.data.rect[0];
+ var combWidth = fieldWidth / this.data.maxLen;
+ element.classList.add('comb');
+ element.style.letterSpacing = 'calc(' + combWidth + 'px - 1ch)';
+ }
+ } else {
+ element = document.createElement('div');
+ element.textContent = this.data.fieldValue;
+ element.style.verticalAlign = 'middle';
+ element.style.display = 'table-cell';
+ var font = null;
+ if (this.data.fontRefName) {
+ font = this.page.commonObjs.getData(this.data.fontRefName);
+ }
+ this._setTextStyle(element, font);
+ }
+ if (this.data.textAlignment !== null) {
+ element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];
+ }
+ this.container.appendChild(element);
+ return this.container;
+ },
+ _setTextStyle: function TextWidgetAnnotationElement_setTextStyle(element, font) {
+ var style = element.style;
+ style.fontSize = this.data.fontSize + 'px';
+ style.direction = this.data.fontDirection < 0 ? 'rtl' : 'ltr';
+ if (!font) {
+ return;
+ }
+ style.fontWeight = font.black ? font.bold ? '900' : 'bold' : font.bold ? 'bold' : 'normal';
+ style.fontStyle = font.italic ? 'italic' : 'normal';
+ var fontFamily = font.loadedName ? '"' + font.loadedName + '", ' : '';
+ var fallbackName = font.fallbackName || 'Helvetica, sans-serif';
+ style.fontFamily = fontFamily + fallbackName;
+ }
+ });
+ return TextWidgetAnnotationElement;
+}();
+var CheckboxWidgetAnnotationElement = function CheckboxWidgetAnnotationElementClosure() {
+ function CheckboxWidgetAnnotationElement(parameters) {
+ WidgetAnnotationElement.call(this, parameters, parameters.renderInteractiveForms);
+ }
+ _util.Util.inherit(CheckboxWidgetAnnotationElement, WidgetAnnotationElement, {
+ render: function CheckboxWidgetAnnotationElement_render() {
+ this.container.className = 'buttonWidgetAnnotation checkBox';
+ var element = document.createElement('input');
+ element.disabled = this.data.readOnly;
+ element.type = 'checkbox';
+ if (this.data.fieldValue && this.data.fieldValue !== 'Off') {
+ element.setAttribute('checked', true);
+ }
+ this.container.appendChild(element);
+ return this.container;
+ }
+ });
+ return CheckboxWidgetAnnotationElement;
+}();
+var RadioButtonWidgetAnnotationElement = function RadioButtonWidgetAnnotationElementClosure() {
+ function RadioButtonWidgetAnnotationElement(parameters) {
+ WidgetAnnotationElement.call(this, parameters, parameters.renderInteractiveForms);
+ }
+ _util.Util.inherit(RadioButtonWidgetAnnotationElement, WidgetAnnotationElement, {
+ render: function RadioButtonWidgetAnnotationElement_render() {
+ this.container.className = 'buttonWidgetAnnotation radioButton';
+ var element = document.createElement('input');
+ element.disabled = this.data.readOnly;
+ element.type = 'radio';
+ element.name = this.data.fieldName;
+ if (this.data.fieldValue === this.data.buttonValue) {
+ element.setAttribute('checked', true);
+ }
+ this.container.appendChild(element);
+ return this.container;
+ }
+ });
+ return RadioButtonWidgetAnnotationElement;
+}();
+var ChoiceWidgetAnnotationElement = function ChoiceWidgetAnnotationElementClosure() {
+ function ChoiceWidgetAnnotationElement(parameters) {
+ WidgetAnnotationElement.call(this, parameters, parameters.renderInteractiveForms);
+ }
+ _util.Util.inherit(ChoiceWidgetAnnotationElement, WidgetAnnotationElement, {
+ render: function ChoiceWidgetAnnotationElement_render() {
+ this.container.className = 'choiceWidgetAnnotation';
+ var selectElement = document.createElement('select');
+ selectElement.disabled = this.data.readOnly;
+ if (!this.data.combo) {
+ selectElement.size = this.data.options.length;
+ if (this.data.multiSelect) {
+ selectElement.multiple = true;
+ }
+ }
+ for (var i = 0, ii = this.data.options.length; i < ii; i++) {
+ var option = this.data.options[i];
+ var optionElement = document.createElement('option');
+ optionElement.textContent = option.displayValue;
+ optionElement.value = option.exportValue;
+ if (this.data.fieldValue.indexOf(option.displayValue) >= 0) {
+ optionElement.setAttribute('selected', true);
+ }
+ selectElement.appendChild(optionElement);
+ }
+ this.container.appendChild(selectElement);
+ return this.container;
+ }
+ });
+ return ChoiceWidgetAnnotationElement;
+}();
+var PopupAnnotationElement = function PopupAnnotationElementClosure() {
+ var IGNORE_TYPES = ['Line'];
+ function PopupAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable);
+ }
+ _util.Util.inherit(PopupAnnotationElement, AnnotationElement, {
+ render: function PopupAnnotationElement_render() {
+ this.container.className = 'popupAnnotation';
+ if (IGNORE_TYPES.indexOf(this.data.parentType) >= 0) {
+ return this.container;
+ }
+ var selector = '[data-annotation-id="' + this.data.parentId + '"]';
+ var parentElement = this.layer.querySelector(selector);
+ if (!parentElement) {
+ return this.container;
+ }
+ var popup = new PopupElement({
+ container: this.container,
+ trigger: parentElement,
+ color: this.data.color,
+ title: this.data.title,
+ contents: this.data.contents
+ });
+ var parentLeft = parseFloat(parentElement.style.left);
+ var parentWidth = parseFloat(parentElement.style.width);
+ _dom_utils.CustomStyle.setProp('transformOrigin', this.container, -(parentLeft + parentWidth) + 'px -' + parentElement.style.top);
+ this.container.style.left = parentLeft + parentWidth + 'px';
+ this.container.appendChild(popup.render());
+ return this.container;
+ }
+ });
+ return PopupAnnotationElement;
+}();
+var PopupElement = function PopupElementClosure() {
+ var BACKGROUND_ENLIGHT = 0.7;
+ function PopupElement(parameters) {
+ this.container = parameters.container;
+ this.trigger = parameters.trigger;
+ this.color = parameters.color;
+ this.title = parameters.title;
+ this.contents = parameters.contents;
+ this.hideWrapper = parameters.hideWrapper || false;
+ this.pinned = false;
+ }
+ PopupElement.prototype = {
+ render: function PopupElement_render() {
+ var wrapper = document.createElement('div');
+ wrapper.className = 'popupWrapper';
+ this.hideElement = this.hideWrapper ? wrapper : this.container;
+ this.hideElement.setAttribute('hidden', true);
+ var popup = document.createElement('div');
+ popup.className = 'popup';
+ var color = this.color;
+ if (color) {
+ var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];
+ var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];
+ var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];
+ popup.style.backgroundColor = _util.Util.makeCssRgb(r | 0, g | 0, b | 0);
+ }
+ var contents = this._formatContents(this.contents);
+ var title = document.createElement('h1');
+ title.textContent = this.title;
+ this.trigger.addEventListener('click', this._toggle.bind(this));
+ this.trigger.addEventListener('mouseover', this._show.bind(this, false));
+ this.trigger.addEventListener('mouseout', this._hide.bind(this, false));
+ popup.addEventListener('click', this._hide.bind(this, true));
+ popup.appendChild(title);
+ popup.appendChild(contents);
+ wrapper.appendChild(popup);
+ return wrapper;
+ },
+ _formatContents: function PopupElement_formatContents(contents) {
+ var p = document.createElement('p');
+ var lines = contents.split(/(?:\r\n?|\n)/);
+ for (var i = 0, ii = lines.length; i < ii; ++i) {
+ var line = lines[i];
+ p.appendChild(document.createTextNode(line));
+ if (i < ii - 1) {
+ p.appendChild(document.createElement('br'));
+ }
+ }
+ return p;
+ },
+ _toggle: function PopupElement_toggle() {
+ if (this.pinned) {
+ this._hide(true);
+ } else {
+ this._show(true);
+ }
+ },
+ _show: function PopupElement_show(pin) {
+ if (pin) {
+ this.pinned = true;
+ }
+ if (this.hideElement.hasAttribute('hidden')) {
+ this.hideElement.removeAttribute('hidden');
+ this.container.style.zIndex += 1;
+ }
+ },
+ _hide: function PopupElement_hide(unpin) {
+ if (unpin) {
+ this.pinned = false;
+ }
+ if (!this.hideElement.hasAttribute('hidden') && !this.pinned) {
+ this.hideElement.setAttribute('hidden', true);
+ this.container.style.zIndex -= 1;
+ }
+ }
+ };
+ return PopupElement;
+}();
+var LineAnnotationElement = function LineAnnotationElementClosure() {
+ var SVG_NS = 'http://www.w3.org/2000/svg';
+ function LineAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable, true);
+ }
+ _util.Util.inherit(LineAnnotationElement, AnnotationElement, {
+ render: function LineAnnotationElement_render() {
+ this.container.className = 'lineAnnotation';
+ var data = this.data;
+ var width = data.rect[2] - data.rect[0];
+ var height = data.rect[3] - data.rect[1];
+ var svg = document.createElementNS(SVG_NS, 'svg:svg');
+ svg.setAttributeNS(null, 'version', '1.1');
+ svg.setAttributeNS(null, 'width', width + 'px');
+ svg.setAttributeNS(null, 'height', height + 'px');
+ svg.setAttributeNS(null, 'preserveAspectRatio', 'none');
+ svg.setAttributeNS(null, 'viewBox', '0 0 ' + width + ' ' + height);
+ var line = document.createElementNS(SVG_NS, 'svg:line');
+ line.setAttributeNS(null, 'x1', data.rect[2] - data.lineCoordinates[0]);
+ line.setAttributeNS(null, 'y1', data.rect[3] - data.lineCoordinates[1]);
+ line.setAttributeNS(null, 'x2', data.rect[2] - data.lineCoordinates[2]);
+ line.setAttributeNS(null, 'y2', data.rect[3] - data.lineCoordinates[3]);
+ line.setAttributeNS(null, 'stroke-width', data.borderStyle.width);
+ line.setAttributeNS(null, 'stroke', 'transparent');
+ svg.appendChild(line);
+ this.container.append(svg);
+ this._createPopup(this.container, line, this.data);
+ return this.container;
+ }
+ });
+ return LineAnnotationElement;
+}();
+var HighlightAnnotationElement = function HighlightAnnotationElementClosure() {
+ function HighlightAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable, true);
+ }
+ _util.Util.inherit(HighlightAnnotationElement, AnnotationElement, {
+ render: function HighlightAnnotationElement_render() {
+ this.container.className = 'highlightAnnotation';
+ if (!this.data.hasPopup) {
+ this._createPopup(this.container, null, this.data);
+ }
+ return this.container;
+ }
+ });
+ return HighlightAnnotationElement;
+}();
+var UnderlineAnnotationElement = function UnderlineAnnotationElementClosure() {
+ function UnderlineAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable, true);
+ }
+ _util.Util.inherit(UnderlineAnnotationElement, AnnotationElement, {
+ render: function UnderlineAnnotationElement_render() {
+ this.container.className = 'underlineAnnotation';
+ if (!this.data.hasPopup) {
+ this._createPopup(this.container, null, this.data);
+ }
+ return this.container;
+ }
+ });
+ return UnderlineAnnotationElement;
+}();
+var SquigglyAnnotationElement = function SquigglyAnnotationElementClosure() {
+ function SquigglyAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable, true);
+ }
+ _util.Util.inherit(SquigglyAnnotationElement, AnnotationElement, {
+ render: function SquigglyAnnotationElement_render() {
+ this.container.className = 'squigglyAnnotation';
+ if (!this.data.hasPopup) {
+ this._createPopup(this.container, null, this.data);
+ }
+ return this.container;
+ }
+ });
+ return SquigglyAnnotationElement;
+}();
+var StrikeOutAnnotationElement = function StrikeOutAnnotationElementClosure() {
+ function StrikeOutAnnotationElement(parameters) {
+ var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
+ AnnotationElement.call(this, parameters, isRenderable, true);
+ }
+ _util.Util.inherit(StrikeOutAnnotationElement, AnnotationElement, {
+ render: function StrikeOutAnnotationElement_render() {
+ this.container.className = 'strikeoutAnnotation';
+ if (!this.data.hasPopup) {
+ this._createPopup(this.container, null, this.data);
+ }
+ return this.container;
+ }
+ });
+ return StrikeOutAnnotationElement;
+}();
+var FileAttachmentAnnotationElement = function FileAttachmentAnnotationElementClosure() {
+ function FileAttachmentAnnotationElement(parameters) {
+ AnnotationElement.call(this, parameters, true);
+ var file = this.data.file;
+ this.filename = (0, _dom_utils.getFilenameFromUrl)(file.filename);
+ this.content = file.content;
+ this.linkService.onFileAttachmentAnnotation({
+ id: (0, _util.stringToPDFString)(file.filename),
+ filename: file.filename,
+ content: file.content
+ });
+ }
+ _util.Util.inherit(FileAttachmentAnnotationElement, AnnotationElement, {
+ render: function FileAttachmentAnnotationElement_render() {
+ this.container.className = 'fileAttachmentAnnotation';
+ var trigger = document.createElement('div');
+ trigger.style.height = this.container.style.height;
+ trigger.style.width = this.container.style.width;
+ trigger.addEventListener('dblclick', this._download.bind(this));
+ if (!this.data.hasPopup && (this.data.title || this.data.contents)) {
+ this._createPopup(this.container, trigger, this.data);
+ }
+ this.container.appendChild(trigger);
+ return this.container;
+ },
+ _download: function FileAttachmentAnnotationElement_download() {
+ if (!this.downloadManager) {
+ (0, _util.warn)('Download cannot be started due to unavailable download manager');
+ return;
+ }
+ this.downloadManager.downloadData(this.content, this.filename, '');
+ }
+ });
+ return FileAttachmentAnnotationElement;
+}();
+var AnnotationLayer = function AnnotationLayerClosure() {
+ return {
+ render: function AnnotationLayer_render(parameters) {
+ var annotationElementFactory = new AnnotationElementFactory();
+ for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
+ var data = parameters.annotations[i];
+ if (!data) {
+ continue;
+ }
+ var element = annotationElementFactory.create({
+ data: data,
+ layer: parameters.div,
+ page: parameters.page,
+ viewport: parameters.viewport,
+ linkService: parameters.linkService,
+ downloadManager: parameters.downloadManager,
+ imageResourcesPath: parameters.imageResourcesPath || (0, _dom_utils.getDefaultSetting)('imageResourcesPath'),
+ renderInteractiveForms: parameters.renderInteractiveForms || false
+ });
+ if (element.isRenderable) {
+ parameters.div.appendChild(element.render());
+ }
+ }
+ },
+ update: function AnnotationLayer_update(parameters) {
+ for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
+ var data = parameters.annotations[i];
+ var element = parameters.div.querySelector('[data-annotation-id="' + data.id + '"]');
+ if (element) {
+ _dom_utils.CustomStyle.setProp('transform', element, 'matrix(' + parameters.viewport.transform.join(',') + ')');
+ }
+ }
+ parameters.div.removeAttribute('hidden');
+ }
+ };
+}();
+exports.AnnotationLayer = AnnotationLayer;
+
+/***/ }),
+/* 4 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.SVGGraphics = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var SVGGraphics = function SVGGraphics() {
+ throw new Error('Not implemented: SVGGraphics');
+};
+{
+ var SVG_DEFAULTS = {
+ fontStyle: 'normal',
+ fontWeight: 'normal',
+ fillColor: '#000000'
+ };
+ var convertImgDataToPng = function convertImgDataToPngClosure() {
+ var PNG_HEADER = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
+ var CHUNK_WRAPPER_SIZE = 12;
+ var crcTable = new Int32Array(256);
+ for (var i = 0; i < 256; i++) {
+ var c = i;
+ for (var h = 0; h < 8; h++) {
+ if (c & 1) {
+ c = 0xedB88320 ^ c >> 1 & 0x7fffffff;
+ } else {
+ c = c >> 1 & 0x7fffffff;
+ }
+ }
+ crcTable[i] = c;
+ }
+ function crc32(data, start, end) {
+ var crc = -1;
+ for (var i = start; i < end; i++) {
+ var a = (crc ^ data[i]) & 0xff;
+ var b = crcTable[a];
+ crc = crc >>> 8 ^ b;
+ }
+ return crc ^ -1;
+ }
+ function writePngChunk(type, body, data, offset) {
+ var p = offset;
+ var len = body.length;
+ data[p] = len >> 24 & 0xff;
+ data[p + 1] = len >> 16 & 0xff;
+ data[p + 2] = len >> 8 & 0xff;
+ data[p + 3] = len & 0xff;
+ p += 4;
+ data[p] = type.charCodeAt(0) & 0xff;
+ data[p + 1] = type.charCodeAt(1) & 0xff;
+ data[p + 2] = type.charCodeAt(2) & 0xff;
+ data[p + 3] = type.charCodeAt(3) & 0xff;
+ p += 4;
+ data.set(body, p);
+ p += body.length;
+ var crc = crc32(data, offset + 4, p);
+ data[p] = crc >> 24 & 0xff;
+ data[p + 1] = crc >> 16 & 0xff;
+ data[p + 2] = crc >> 8 & 0xff;
+ data[p + 3] = crc & 0xff;
+ }
+ function adler32(data, start, end) {
+ var a = 1;
+ var b = 0;
+ for (var i = start; i < end; ++i) {
+ a = (a + (data[i] & 0xff)) % 65521;
+ b = (b + a) % 65521;
+ }
+ return b << 16 | a;
+ }
+ function deflateSync(literals) {
+ if (!(0, _util.isNodeJS)()) {
+ return deflateSyncUncompressed(literals);
+ }
+ try {
+ var input;
+ if (parseInt(process.versions.node) >= 8) {
+ input = literals;
+ } else {
+ input = new Buffer(literals);
+ }
+ var output = require('zlib').deflateSync(input, { level: 9 });
+ return output instanceof Uint8Array ? output : new Uint8Array(output);
+ } catch (e) {
+ (0, _util.warn)('Not compressing PNG because zlib.deflateSync is unavailable: ' + e);
+ }
+ return deflateSyncUncompressed(literals);
+ }
+ function deflateSyncUncompressed(literals) {
+ var len = literals.length;
+ var maxBlockLength = 0xFFFF;
+ var deflateBlocks = Math.ceil(len / maxBlockLength);
+ var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
+ var pi = 0;
+ idat[pi++] = 0x78;
+ idat[pi++] = 0x9c;
+ var pos = 0;
+ while (len > maxBlockLength) {
+ idat[pi++] = 0x00;
+ idat[pi++] = 0xff;
+ idat[pi++] = 0xff;
+ idat[pi++] = 0x00;
+ idat[pi++] = 0x00;
+ idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
+ pi += maxBlockLength;
+ pos += maxBlockLength;
+ len -= maxBlockLength;
+ }
+ idat[pi++] = 0x01;
+ idat[pi++] = len & 0xff;
+ idat[pi++] = len >> 8 & 0xff;
+ idat[pi++] = ~len & 0xffff & 0xff;
+ idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
+ idat.set(literals.subarray(pos), pi);
+ pi += literals.length - pos;
+ var adler = adler32(literals, 0, literals.length);
+ idat[pi++] = adler >> 24 & 0xff;
+ idat[pi++] = adler >> 16 & 0xff;
+ idat[pi++] = adler >> 8 & 0xff;
+ idat[pi++] = adler & 0xff;
+ return idat;
+ }
+ function encode(imgData, kind, forceDataSchema) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var bitDepth, colorType, lineSize;
+ var bytes = imgData.data;
+ switch (kind) {
+ case _util.ImageKind.GRAYSCALE_1BPP:
+ colorType = 0;
+ bitDepth = 1;
+ lineSize = width + 7 >> 3;
+ break;
+ case _util.ImageKind.RGB_24BPP:
+ colorType = 2;
+ bitDepth = 8;
+ lineSize = width * 3;
+ break;
+ case _util.ImageKind.RGBA_32BPP:
+ colorType = 6;
+ bitDepth = 8;
+ lineSize = width * 4;
+ break;
+ default:
+ throw new Error('invalid format');
+ }
+ var literals = new Uint8Array((1 + lineSize) * height);
+ var offsetLiterals = 0,
+ offsetBytes = 0;
+ var y, i;
+ for (y = 0; y < height; ++y) {
+ literals[offsetLiterals++] = 0;
+ literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize), offsetLiterals);
+ offsetBytes += lineSize;
+ offsetLiterals += lineSize;
+ }
+ if (kind === _util.ImageKind.GRAYSCALE_1BPP) {
+ offsetLiterals = 0;
+ for (y = 0; y < height; y++) {
+ offsetLiterals++;
+ for (i = 0; i < lineSize; i++) {
+ literals[offsetLiterals++] ^= 0xFF;
+ }
+ }
+ }
+ var ihdr = new Uint8Array([width >> 24 & 0xff, width >> 16 & 0xff, width >> 8 & 0xff, width & 0xff, height >> 24 & 0xff, height >> 16 & 0xff, height >> 8 & 0xff, height & 0xff, bitDepth, colorType, 0x00, 0x00, 0x00]);
+ var idat = deflateSync(literals);
+ var pngLength = PNG_HEADER.length + CHUNK_WRAPPER_SIZE * 3 + ihdr.length + idat.length;
+ var data = new Uint8Array(pngLength);
+ var offset = 0;
+ data.set(PNG_HEADER, offset);
+ offset += PNG_HEADER.length;
+ writePngChunk('IHDR', ihdr, data, offset);
+ offset += CHUNK_WRAPPER_SIZE + ihdr.length;
+ writePngChunk('IDATA', idat, data, offset);
+ offset += CHUNK_WRAPPER_SIZE + idat.length;
+ writePngChunk('IEND', new Uint8Array(0), data, offset);
+ return (0, _util.createObjectURL)(data, 'image/png', forceDataSchema);
+ }
+ return function convertImgDataToPng(imgData, forceDataSchema) {
+ var kind = imgData.kind === undefined ? _util.ImageKind.GRAYSCALE_1BPP : imgData.kind;
+ return encode(imgData, kind, forceDataSchema);
+ };
+ }();
+ var SVGExtraState = function SVGExtraStateClosure() {
+ function SVGExtraState() {
+ this.fontSizeScale = 1;
+ this.fontWeight = SVG_DEFAULTS.fontWeight;
+ this.fontSize = 0;
+ this.textMatrix = _util.IDENTITY_MATRIX;
+ this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
+ this.leading = 0;
+ this.x = 0;
+ this.y = 0;
+ this.lineX = 0;
+ this.lineY = 0;
+ this.charSpacing = 0;
+ this.wordSpacing = 0;
+ this.textHScale = 1;
+ this.textRise = 0;
+ this.fillColor = SVG_DEFAULTS.fillColor;
+ this.strokeColor = '#000000';
+ this.fillAlpha = 1;
+ this.strokeAlpha = 1;
+ this.lineWidth = 1;
+ this.lineJoin = '';
+ this.lineCap = '';
+ this.miterLimit = 0;
+ this.dashArray = [];
+ this.dashPhase = 0;
+ this.dependencies = [];
+ this.activeClipUrl = null;
+ this.clipGroup = null;
+ this.maskId = '';
+ }
+ SVGExtraState.prototype = {
+ clone: function SVGExtraState_clone() {
+ return Object.create(this);
+ },
+ setCurrentPoint: function SVGExtraState_setCurrentPoint(x, y) {
+ this.x = x;
+ this.y = y;
+ }
+ };
+ return SVGExtraState;
+ }();
+ exports.SVGGraphics = SVGGraphics = function SVGGraphicsClosure() {
+ function opListToTree(opList) {
+ var opTree = [];
+ var tmp = [];
+ var opListLen = opList.length;
+ for (var x = 0; x < opListLen; x++) {
+ if (opList[x].fn === 'save') {
+ opTree.push({
+ 'fnId': 92,
+ 'fn': 'group',
+ 'items': []
+ });
+ tmp.push(opTree);
+ opTree = opTree[opTree.length - 1].items;
+ continue;
+ }
+ if (opList[x].fn === 'restore') {
+ opTree = tmp.pop();
+ } else {
+ opTree.push(opList[x]);
+ }
+ }
+ return opTree;
+ }
+ function pf(value) {
+ if (value === (value | 0)) {
+ return value.toString();
+ }
+ var s = value.toFixed(10);
+ var i = s.length - 1;
+ if (s[i] !== '0') {
+ return s;
+ }
+ do {
+ i--;
+ } while (s[i] === '0');
+ return s.substr(0, s[i] === '.' ? i : i + 1);
+ }
+ function pm(m) {
+ if (m[4] === 0 && m[5] === 0) {
+ if (m[1] === 0 && m[2] === 0) {
+ if (m[0] === 1 && m[3] === 1) {
+ return '';
+ }
+ return 'scale(' + pf(m[0]) + ' ' + pf(m[3]) + ')';
+ }
+ if (m[0] === m[3] && m[1] === -m[2]) {
+ var a = Math.acos(m[0]) * 180 / Math.PI;
+ return 'rotate(' + pf(a) + ')';
+ }
+ } else {
+ if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
+ return 'translate(' + pf(m[4]) + ' ' + pf(m[5]) + ')';
+ }
+ }
+ return 'matrix(' + pf(m[0]) + ' ' + pf(m[1]) + ' ' + pf(m[2]) + ' ' + pf(m[3]) + ' ' + pf(m[4]) + ' ' + pf(m[5]) + ')';
+ }
+ function SVGGraphics(commonObjs, objs, forceDataSchema) {
+ this.current = new SVGExtraState();
+ this.transformMatrix = _util.IDENTITY_MATRIX;
+ this.transformStack = [];
+ this.extraStack = [];
+ this.commonObjs = commonObjs;
+ this.objs = objs;
+ this.pendingClip = null;
+ this.pendingEOFill = false;
+ this.embedFonts = false;
+ this.embeddedFonts = Object.create(null);
+ this.cssStyle = null;
+ this.forceDataSchema = !!forceDataSchema;
+ }
+ var NS = 'http://www.w3.org/2000/svg';
+ var XML_NS = 'http://www.w3.org/XML/1998/namespace';
+ var XLINK_NS = 'http://www.w3.org/1999/xlink';
+ var LINE_CAP_STYLES = ['butt', 'round', 'square'];
+ var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
+ var clipCount = 0;
+ var maskCount = 0;
+ SVGGraphics.prototype = {
+ save: function SVGGraphics_save() {
+ this.transformStack.push(this.transformMatrix);
+ var old = this.current;
+ this.extraStack.push(old);
+ this.current = old.clone();
+ },
+ restore: function SVGGraphics_restore() {
+ this.transformMatrix = this.transformStack.pop();
+ this.current = this.extraStack.pop();
+ this.pendingClip = null;
+ this.tgrp = null;
+ },
+ group: function SVGGraphics_group(items) {
+ this.save();
+ this.executeOpTree(items);
+ this.restore();
+ },
+ loadDependencies: function SVGGraphics_loadDependencies(operatorList) {
+ var _this = this;
+
+ var fnArray = operatorList.fnArray;
+ var fnArrayLen = fnArray.length;
+ var argsArray = operatorList.argsArray;
+ for (var i = 0; i < fnArrayLen; i++) {
+ if (_util.OPS.dependency === fnArray[i]) {
+ var deps = argsArray[i];
+ for (var n = 0, nn = deps.length; n < nn; n++) {
+ var obj = deps[n];
+ var common = obj.substring(0, 2) === 'g_';
+ var promise;
+ if (common) {
+ promise = new Promise(function (resolve) {
+ _this.commonObjs.get(obj, resolve);
+ });
+ } else {
+ promise = new Promise(function (resolve) {
+ _this.objs.get(obj, resolve);
+ });
+ }
+ this.current.dependencies.push(promise);
+ }
+ }
+ }
+ return Promise.all(this.current.dependencies);
+ },
+ transform: function SVGGraphics_transform(a, b, c, d, e, f) {
+ var transformMatrix = [a, b, c, d, e, f];
+ this.transformMatrix = _util.Util.transform(this.transformMatrix, transformMatrix);
+ this.tgrp = null;
+ },
+ getSVG: function SVGGraphics_getSVG(operatorList, viewport) {
+ var _this2 = this;
+
+ this.viewport = viewport;
+ var svgElement = this._initialize(viewport);
+ return this.loadDependencies(operatorList).then(function () {
+ _this2.transformMatrix = _util.IDENTITY_MATRIX;
+ var opTree = _this2.convertOpList(operatorList);
+ _this2.executeOpTree(opTree);
+ return svgElement;
+ });
+ },
+ convertOpList: function SVGGraphics_convertOpList(operatorList) {
+ var argsArray = operatorList.argsArray;
+ var fnArray = operatorList.fnArray;
+ var fnArrayLen = fnArray.length;
+ var REVOPS = [];
+ var opList = [];
+ for (var op in _util.OPS) {
+ REVOPS[_util.OPS[op]] = op;
+ }
+ for (var x = 0; x < fnArrayLen; x++) {
+ var fnId = fnArray[x];
+ opList.push({
+ 'fnId': fnId,
+ 'fn': REVOPS[fnId],
+ 'args': argsArray[x]
+ });
+ }
+ return opListToTree(opList);
+ },
+ executeOpTree: function SVGGraphics_executeOpTree(opTree) {
+ var opTreeLen = opTree.length;
+ for (var x = 0; x < opTreeLen; x++) {
+ var fn = opTree[x].fn;
+ var fnId = opTree[x].fnId;
+ var args = opTree[x].args;
+ switch (fnId | 0) {
+ case _util.OPS.beginText:
+ this.beginText();
+ break;
+ case _util.OPS.setLeading:
+ this.setLeading(args);
+ break;
+ case _util.OPS.setLeadingMoveText:
+ this.setLeadingMoveText(args[0], args[1]);
+ break;
+ case _util.OPS.setFont:
+ this.setFont(args);
+ break;
+ case _util.OPS.showText:
+ this.showText(args[0]);
+ break;
+ case _util.OPS.showSpacedText:
+ this.showText(args[0]);
+ break;
+ case _util.OPS.endText:
+ this.endText();
+ break;
+ case _util.OPS.moveText:
+ this.moveText(args[0], args[1]);
+ break;
+ case _util.OPS.setCharSpacing:
+ this.setCharSpacing(args[0]);
+ break;
+ case _util.OPS.setWordSpacing:
+ this.setWordSpacing(args[0]);
+ break;
+ case _util.OPS.setHScale:
+ this.setHScale(args[0]);
+ break;
+ case _util.OPS.setTextMatrix:
+ this.setTextMatrix(args[0], args[1], args[2], args[3], args[4], args[5]);
+ break;
+ case _util.OPS.setLineWidth:
+ this.setLineWidth(args[0]);
+ break;
+ case _util.OPS.setLineJoin:
+ this.setLineJoin(args[0]);
+ break;
+ case _util.OPS.setLineCap:
+ this.setLineCap(args[0]);
+ break;
+ case _util.OPS.setMiterLimit:
+ this.setMiterLimit(args[0]);
+ break;
+ case _util.OPS.setFillRGBColor:
+ this.setFillRGBColor(args[0], args[1], args[2]);
+ break;
+ case _util.OPS.setStrokeRGBColor:
+ this.setStrokeRGBColor(args[0], args[1], args[2]);
+ break;
+ case _util.OPS.setDash:
+ this.setDash(args[0], args[1]);
+ break;
+ case _util.OPS.setGState:
+ this.setGState(args[0]);
+ break;
+ case _util.OPS.fill:
+ this.fill();
+ break;
+ case _util.OPS.eoFill:
+ this.eoFill();
+ break;
+ case _util.OPS.stroke:
+ this.stroke();
+ break;
+ case _util.OPS.fillStroke:
+ this.fillStroke();
+ break;
+ case _util.OPS.eoFillStroke:
+ this.eoFillStroke();
+ break;
+ case _util.OPS.clip:
+ this.clip('nonzero');
+ break;
+ case _util.OPS.eoClip:
+ this.clip('evenodd');
+ break;
+ case _util.OPS.paintSolidColorImageMask:
+ this.paintSolidColorImageMask();
+ break;
+ case _util.OPS.paintJpegXObject:
+ this.paintJpegXObject(args[0], args[1], args[2]);
+ break;
+ case _util.OPS.paintImageXObject:
+ this.paintImageXObject(args[0]);
+ break;
+ case _util.OPS.paintInlineImageXObject:
+ this.paintInlineImageXObject(args[0]);
+ break;
+ case _util.OPS.paintImageMaskXObject:
+ this.paintImageMaskXObject(args[0]);
+ break;
+ case _util.OPS.paintFormXObjectBegin:
+ this.paintFormXObjectBegin(args[0], args[1]);
+ break;
+ case _util.OPS.paintFormXObjectEnd:
+ this.paintFormXObjectEnd();
+ break;
+ case _util.OPS.closePath:
+ this.closePath();
+ break;
+ case _util.OPS.closeStroke:
+ this.closeStroke();
+ break;
+ case _util.OPS.closeFillStroke:
+ this.closeFillStroke();
+ break;
+ case _util.OPS.nextLine:
+ this.nextLine();
+ break;
+ case _util.OPS.transform:
+ this.transform(args[0], args[1], args[2], args[3], args[4], args[5]);
+ break;
+ case _util.OPS.constructPath:
+ this.constructPath(args[0], args[1]);
+ break;
+ case _util.OPS.endPath:
+ this.endPath();
+ break;
+ case 92:
+ this.group(opTree[x].items);
+ break;
+ default:
+ (0, _util.warn)('Unimplemented operator ' + fn);
+ break;
+ }
+ }
+ },
+ setWordSpacing: function SVGGraphics_setWordSpacing(wordSpacing) {
+ this.current.wordSpacing = wordSpacing;
+ },
+ setCharSpacing: function SVGGraphics_setCharSpacing(charSpacing) {
+ this.current.charSpacing = charSpacing;
+ },
+ nextLine: function SVGGraphics_nextLine() {
+ this.moveText(0, this.current.leading);
+ },
+ setTextMatrix: function SVGGraphics_setTextMatrix(a, b, c, d, e, f) {
+ var current = this.current;
+ this.current.textMatrix = this.current.lineMatrix = [a, b, c, d, e, f];
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ current.xcoords = [];
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ current.txtElement = document.createElementNS(NS, 'svg:text');
+ current.txtElement.appendChild(current.tspan);
+ },
+ beginText: function SVGGraphics_beginText() {
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ this.current.textMatrix = _util.IDENTITY_MATRIX;
+ this.current.lineMatrix = _util.IDENTITY_MATRIX;
+ this.current.tspan = document.createElementNS(NS, 'svg:tspan');
+ this.current.txtElement = document.createElementNS(NS, 'svg:text');
+ this.current.txtgrp = document.createElementNS(NS, 'svg:g');
+ this.current.xcoords = [];
+ },
+ moveText: function SVGGraphics_moveText(x, y) {
+ var current = this.current;
+ this.current.x = this.current.lineX += x;
+ this.current.y = this.current.lineY += y;
+ current.xcoords = [];
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ },
+ showText: function SVGGraphics_showText(glyphs) {
+ var current = this.current;
+ var font = current.font;
+ var fontSize = current.fontSize;
+ if (fontSize === 0) {
+ return;
+ }
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var fontDirection = current.fontDirection;
+ var textHScale = current.textHScale * fontDirection;
+ var glyphsLength = glyphs.length;
+ var vertical = font.vertical;
+ var widthAdvanceScale = fontSize * current.fontMatrix[0];
+ var x = 0,
+ i;
+ for (i = 0; i < glyphsLength; ++i) {
+ var glyph = glyphs[i];
+ if (glyph === null) {
+ x += fontDirection * wordSpacing;
+ continue;
+ } else if ((0, _util.isNum)(glyph)) {
+ x += -glyph * fontSize * 0.001;
+ continue;
+ }
+ current.xcoords.push(current.x + x * textHScale);
+ var width = glyph.width;
+ var character = glyph.fontChar;
+ var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
+ var charWidth = width * widthAdvanceScale + spacing * fontDirection;
+ x += charWidth;
+ current.tspan.textContent += character;
+ }
+ if (vertical) {
+ current.y -= x * textHScale;
+ } else {
+ current.x += x * textHScale;
+ }
+ current.tspan.setAttributeNS(null, 'x', current.xcoords.map(pf).join(' '));
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
+ current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');
+ if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
+ current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);
+ }
+ if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
+ current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);
+ }
+ if (current.fillColor !== SVG_DEFAULTS.fillColor) {
+ current.tspan.setAttributeNS(null, 'fill', current.fillColor);
+ }
+ current.txtElement.setAttributeNS(null, 'transform', pm(current.textMatrix) + ' scale(1, -1)');
+ current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');
+ current.txtElement.appendChild(current.tspan);
+ current.txtgrp.appendChild(current.txtElement);
+ this._ensureTransformGroup().appendChild(current.txtElement);
+ },
+ setLeadingMoveText: function SVGGraphics_setLeadingMoveText(x, y) {
+ this.setLeading(-y);
+ this.moveText(x, y);
+ },
+ addFontStyle: function SVGGraphics_addFontStyle(fontObj) {
+ if (!this.cssStyle) {
+ this.cssStyle = document.createElementNS(NS, 'svg:style');
+ this.cssStyle.setAttributeNS(null, 'type', 'text/css');
+ this.defs.appendChild(this.cssStyle);
+ }
+ var url = (0, _util.createObjectURL)(fontObj.data, fontObj.mimetype, this.forceDataSchema);
+ this.cssStyle.textContent += '@font-face { font-family: "' + fontObj.loadedName + '";' + ' src: url(' + url + '); }\n';
+ },
+ setFont: function SVGGraphics_setFont(details) {
+ var current = this.current;
+ var fontObj = this.commonObjs.get(details[0]);
+ var size = details[1];
+ this.current.font = fontObj;
+ if (this.embedFonts && fontObj.data && !this.embeddedFonts[fontObj.loadedName]) {
+ this.addFontStyle(fontObj);
+ this.embeddedFonts[fontObj.loadedName] = fontObj;
+ }
+ current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
+ var bold = fontObj.black ? fontObj.bold ? 'bolder' : 'bold' : fontObj.bold ? 'bold' : 'normal';
+ var italic = fontObj.italic ? 'italic' : 'normal';
+ if (size < 0) {
+ size = -size;
+ current.fontDirection = -1;
+ } else {
+ current.fontDirection = 1;
+ }
+ current.fontSize = size;
+ current.fontFamily = fontObj.loadedName;
+ current.fontWeight = bold;
+ current.fontStyle = italic;
+ current.tspan = document.createElementNS(NS, 'svg:tspan');
+ current.tspan.setAttributeNS(null, 'y', pf(-current.y));
+ current.xcoords = [];
+ },
+ endText: function SVGGraphics_endText() {},
+ setLineWidth: function SVGGraphics_setLineWidth(width) {
+ this.current.lineWidth = width;
+ },
+ setLineCap: function SVGGraphics_setLineCap(style) {
+ this.current.lineCap = LINE_CAP_STYLES[style];
+ },
+ setLineJoin: function SVGGraphics_setLineJoin(style) {
+ this.current.lineJoin = LINE_JOIN_STYLES[style];
+ },
+ setMiterLimit: function SVGGraphics_setMiterLimit(limit) {
+ this.current.miterLimit = limit;
+ },
+ setStrokeAlpha: function SVGGraphics_setStrokeAlpha(strokeAlpha) {
+ this.current.strokeAlpha = strokeAlpha;
+ },
+ setStrokeRGBColor: function SVGGraphics_setStrokeRGBColor(r, g, b) {
+ var color = _util.Util.makeCssRgb(r, g, b);
+ this.current.strokeColor = color;
+ },
+ setFillAlpha: function SVGGraphics_setFillAlpha(fillAlpha) {
+ this.current.fillAlpha = fillAlpha;
+ },
+ setFillRGBColor: function SVGGraphics_setFillRGBColor(r, g, b) {
+ var color = _util.Util.makeCssRgb(r, g, b);
+ this.current.fillColor = color;
+ this.current.tspan = document.createElementNS(NS, 'svg:tspan');
+ this.current.xcoords = [];
+ },
+ setDash: function SVGGraphics_setDash(dashArray, dashPhase) {
+ this.current.dashArray = dashArray;
+ this.current.dashPhase = dashPhase;
+ },
+ constructPath: function SVGGraphics_constructPath(ops, args) {
+ var current = this.current;
+ var x = current.x,
+ y = current.y;
+ current.path = document.createElementNS(NS, 'svg:path');
+ var d = [];
+ var opLength = ops.length;
+ for (var i = 0, j = 0; i < opLength; i++) {
+ switch (ops[i] | 0) {
+ case _util.OPS.rectangle:
+ x = args[j++];
+ y = args[j++];
+ var width = args[j++];
+ var height = args[j++];
+ var xw = x + width;
+ var yh = y + height;
+ d.push('M', pf(x), pf(y), 'L', pf(xw), pf(y), 'L', pf(xw), pf(yh), 'L', pf(x), pf(yh), 'Z');
+ break;
+ case _util.OPS.moveTo:
+ x = args[j++];
+ y = args[j++];
+ d.push('M', pf(x), pf(y));
+ break;
+ case _util.OPS.lineTo:
+ x = args[j++];
+ y = args[j++];
+ d.push('L', pf(x), pf(y));
+ break;
+ case _util.OPS.curveTo:
+ x = args[j + 4];
+ y = args[j + 5];
+ d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]), pf(x), pf(y));
+ j += 6;
+ break;
+ case _util.OPS.curveTo2:
+ x = args[j + 2];
+ y = args[j + 3];
+ d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]));
+ j += 4;
+ break;
+ case _util.OPS.curveTo3:
+ x = args[j + 2];
+ y = args[j + 3];
+ d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y), pf(x), pf(y));
+ j += 4;
+ break;
+ case _util.OPS.closePath:
+ d.push('Z');
+ break;
+ }
+ }
+ current.path.setAttributeNS(null, 'd', d.join(' '));
+ current.path.setAttributeNS(null, 'fill', 'none');
+ this._ensureTransformGroup().appendChild(current.path);
+ current.element = current.path;
+ current.setCurrentPoint(x, y);
+ },
+ endPath: function SVGGraphics_endPath() {
+ if (!this.pendingClip) {
+ return;
+ }
+ var current = this.current;
+ var clipId = 'clippath' + clipCount;
+ clipCount++;
+ var clipPath = document.createElementNS(NS, 'svg:clipPath');
+ clipPath.setAttributeNS(null, 'id', clipId);
+ clipPath.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ var clipElement = current.element.cloneNode();
+ if (this.pendingClip === 'evenodd') {
+ clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');
+ } else {
+ clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');
+ }
+ this.pendingClip = null;
+ clipPath.appendChild(clipElement);
+ this.defs.appendChild(clipPath);
+ if (current.activeClipUrl) {
+ current.clipGroup = null;
+ this.extraStack.forEach(function (prev) {
+ prev.clipGroup = null;
+ });
+ }
+ current.activeClipUrl = 'url(#' + clipId + ')';
+ this.tgrp = null;
+ },
+ clip: function SVGGraphics_clip(type) {
+ this.pendingClip = type;
+ },
+ closePath: function SVGGraphics_closePath() {
+ var current = this.current;
+ var d = current.path.getAttributeNS(null, 'd');
+ d += 'Z';
+ current.path.setAttributeNS(null, 'd', d);
+ },
+ setLeading: function SVGGraphics_setLeading(leading) {
+ this.current.leading = -leading;
+ },
+ setTextRise: function SVGGraphics_setTextRise(textRise) {
+ this.current.textRise = textRise;
+ },
+ setHScale: function SVGGraphics_setHScale(scale) {
+ this.current.textHScale = scale / 100;
+ },
+ setGState: function SVGGraphics_setGState(states) {
+ for (var i = 0, ii = states.length; i < ii; i++) {
+ var state = states[i];
+ var key = state[0];
+ var value = state[1];
+ switch (key) {
+ case 'LW':
+ this.setLineWidth(value);
+ break;
+ case 'LC':
+ this.setLineCap(value);
+ break;
+ case 'LJ':
+ this.setLineJoin(value);
+ break;
+ case 'ML':
+ this.setMiterLimit(value);
+ break;
+ case 'D':
+ this.setDash(value[0], value[1]);
+ break;
+ case 'Font':
+ this.setFont(value);
+ break;
+ case 'CA':
+ this.setStrokeAlpha(value);
+ break;
+ case 'ca':
+ this.setFillAlpha(value);
+ break;
+ default:
+ (0, _util.warn)('Unimplemented graphic state ' + key);
+ break;
+ }
+ }
+ },
+ fill: function SVGGraphics_fill() {
+ var current = this.current;
+ current.element.setAttributeNS(null, 'fill', current.fillColor);
+ current.element.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
+ },
+ stroke: function SVGGraphics_stroke() {
+ var current = this.current;
+ current.element.setAttributeNS(null, 'stroke', current.strokeColor);
+ current.element.setAttributeNS(null, 'stroke-opacity', current.strokeAlpha);
+ current.element.setAttributeNS(null, 'stroke-miterlimit', pf(current.miterLimit));
+ current.element.setAttributeNS(null, 'stroke-linecap', current.lineCap);
+ current.element.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);
+ current.element.setAttributeNS(null, 'stroke-width', pf(current.lineWidth) + 'px');
+ current.element.setAttributeNS(null, 'stroke-dasharray', current.dashArray.map(pf).join(' '));
+ current.element.setAttributeNS(null, 'stroke-dashoffset', pf(current.dashPhase) + 'px');
+ current.element.setAttributeNS(null, 'fill', 'none');
+ },
+ eoFill: function SVGGraphics_eoFill() {
+ this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
+ this.fill();
+ },
+ fillStroke: function SVGGraphics_fillStroke() {
+ this.stroke();
+ this.fill();
+ },
+ eoFillStroke: function SVGGraphics_eoFillStroke() {
+ this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
+ this.fillStroke();
+ },
+ closeStroke: function SVGGraphics_closeStroke() {
+ this.closePath();
+ this.stroke();
+ },
+ closeFillStroke: function SVGGraphics_closeFillStroke() {
+ this.closePath();
+ this.fillStroke();
+ },
+ paintSolidColorImageMask: function SVGGraphics_paintSolidColorImageMask() {
+ var current = this.current;
+ var rect = document.createElementNS(NS, 'svg:rect');
+ rect.setAttributeNS(null, 'x', '0');
+ rect.setAttributeNS(null, 'y', '0');
+ rect.setAttributeNS(null, 'width', '1px');
+ rect.setAttributeNS(null, 'height', '1px');
+ rect.setAttributeNS(null, 'fill', current.fillColor);
+ this._ensureTransformGroup().appendChild(rect);
+ },
+ paintJpegXObject: function SVGGraphics_paintJpegXObject(objId, w, h) {
+ var imgObj = this.objs.get(objId);
+ var imgEl = document.createElementNS(NS, 'svg:image');
+ imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);
+ imgEl.setAttributeNS(null, 'width', pf(w));
+ imgEl.setAttributeNS(null, 'height', pf(h));
+ imgEl.setAttributeNS(null, 'x', '0');
+ imgEl.setAttributeNS(null, 'y', pf(-h));
+ imgEl.setAttributeNS(null, 'transform', 'scale(' + pf(1 / w) + ' ' + pf(-1 / h) + ')');
+ this._ensureTransformGroup().appendChild(imgEl);
+ },
+ paintImageXObject: function SVGGraphics_paintImageXObject(objId) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ (0, _util.warn)('Dependent image isn\'t ready yet');
+ return;
+ }
+ this.paintInlineImageXObject(imgData);
+ },
+ paintInlineImageXObject: function SVGGraphics_paintInlineImageXObject(imgData, mask) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var imgSrc = convertImgDataToPng(imgData, this.forceDataSchema);
+ var cliprect = document.createElementNS(NS, 'svg:rect');
+ cliprect.setAttributeNS(null, 'x', '0');
+ cliprect.setAttributeNS(null, 'y', '0');
+ cliprect.setAttributeNS(null, 'width', pf(width));
+ cliprect.setAttributeNS(null, 'height', pf(height));
+ this.current.element = cliprect;
+ this.clip('nonzero');
+ var imgEl = document.createElementNS(NS, 'svg:image');
+ imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);
+ imgEl.setAttributeNS(null, 'x', '0');
+ imgEl.setAttributeNS(null, 'y', pf(-height));
+ imgEl.setAttributeNS(null, 'width', pf(width) + 'px');
+ imgEl.setAttributeNS(null, 'height', pf(height) + 'px');
+ imgEl.setAttributeNS(null, 'transform', 'scale(' + pf(1 / width) + ' ' + pf(-1 / height) + ')');
+ if (mask) {
+ mask.appendChild(imgEl);
+ } else {
+ this._ensureTransformGroup().appendChild(imgEl);
+ }
+ },
+ paintImageMaskXObject: function SVGGraphics_paintImageMaskXObject(imgData) {
+ var current = this.current;
+ var width = imgData.width;
+ var height = imgData.height;
+ var fillColor = current.fillColor;
+ current.maskId = 'mask' + maskCount++;
+ var mask = document.createElementNS(NS, 'svg:mask');
+ mask.setAttributeNS(null, 'id', current.maskId);
+ var rect = document.createElementNS(NS, 'svg:rect');
+ rect.setAttributeNS(null, 'x', '0');
+ rect.setAttributeNS(null, 'y', '0');
+ rect.setAttributeNS(null, 'width', pf(width));
+ rect.setAttributeNS(null, 'height', pf(height));
+ rect.setAttributeNS(null, 'fill', fillColor);
+ rect.setAttributeNS(null, 'mask', 'url(#' + current.maskId + ')');
+ this.defs.appendChild(mask);
+ this._ensureTransformGroup().appendChild(rect);
+ this.paintInlineImageXObject(imgData, mask);
+ },
+ paintFormXObjectBegin: function SVGGraphics_paintFormXObjectBegin(matrix, bbox) {
+ if ((0, _util.isArray)(matrix) && matrix.length === 6) {
+ this.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
+ }
+ if ((0, _util.isArray)(bbox) && bbox.length === 4) {
+ var width = bbox[2] - bbox[0];
+ var height = bbox[3] - bbox[1];
+ var cliprect = document.createElementNS(NS, 'svg:rect');
+ cliprect.setAttributeNS(null, 'x', bbox[0]);
+ cliprect.setAttributeNS(null, 'y', bbox[1]);
+ cliprect.setAttributeNS(null, 'width', pf(width));
+ cliprect.setAttributeNS(null, 'height', pf(height));
+ this.current.element = cliprect;
+ this.clip('nonzero');
+ this.endPath();
+ }
+ },
+ paintFormXObjectEnd: function SVGGraphics_paintFormXObjectEnd() {},
+ _initialize: function SVGGraphics_initialize(viewport) {
+ var svg = document.createElementNS(NS, 'svg:svg');
+ svg.setAttributeNS(null, 'version', '1.1');
+ svg.setAttributeNS(null, 'width', viewport.width + 'px');
+ svg.setAttributeNS(null, 'height', viewport.height + 'px');
+ svg.setAttributeNS(null, 'preserveAspectRatio', 'none');
+ svg.setAttributeNS(null, 'viewBox', '0 0 ' + viewport.width + ' ' + viewport.height);
+ var definitions = document.createElementNS(NS, 'svg:defs');
+ svg.appendChild(definitions);
+ this.defs = definitions;
+ var rootGroup = document.createElementNS(NS, 'svg:g');
+ rootGroup.setAttributeNS(null, 'transform', pm(viewport.transform));
+ svg.appendChild(rootGroup);
+ this.svg = rootGroup;
+ return svg;
+ },
+ _ensureClipGroup: function SVGGraphics_ensureClipGroup() {
+ if (!this.current.clipGroup) {
+ var clipGroup = document.createElementNS(NS, 'svg:g');
+ clipGroup.setAttributeNS(null, 'clip-path', this.current.activeClipUrl);
+ this.svg.appendChild(clipGroup);
+ this.current.clipGroup = clipGroup;
+ }
+ return this.current.clipGroup;
+ },
+ _ensureTransformGroup: function SVGGraphics_ensureTransformGroup() {
+ if (!this.tgrp) {
+ this.tgrp = document.createElementNS(NS, 'svg:g');
+ this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));
+ if (this.current.activeClipUrl) {
+ this._ensureClipGroup().appendChild(this.tgrp);
+ } else {
+ this.svg.appendChild(this.tgrp);
+ }
+ }
+ return this.tgrp;
+ }
+ };
+ return SVGGraphics;
+ }();
+}
+exports.SVGGraphics = SVGGraphics;
+
+/***/ }),
+/* 5 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.renderTextLayer = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var _dom_utils = __w_pdfjs_require__(1);
+
+var renderTextLayer = function renderTextLayerClosure() {
+ var MAX_TEXT_DIVS_TO_RENDER = 100000;
+ var NonWhitespaceRegexp = /\S/;
+ function isAllWhitespace(str) {
+ return !NonWhitespaceRegexp.test(str);
+ }
+ var styleBuf = ['left: ', 0, 'px; top: ', 0, 'px; font-size: ', 0, 'px; font-family: ', '', ';'];
+ function appendText(task, geom, styles) {
+ var textDiv = document.createElement('div');
+ var textDivProperties = {
+ style: null,
+ angle: 0,
+ canvasWidth: 0,
+ isWhitespace: false,
+ originalTransform: null,
+ paddingBottom: 0,
+ paddingLeft: 0,
+ paddingRight: 0,
+ paddingTop: 0,
+ scale: 1
+ };
+ task._textDivs.push(textDiv);
+ if (isAllWhitespace(geom.str)) {
+ textDivProperties.isWhitespace = true;
+ task._textDivProperties.set(textDiv, textDivProperties);
+ return;
+ }
+ var tx = _util.Util.transform(task._viewport.transform, geom.transform);
+ var angle = Math.atan2(tx[1], tx[0]);
+ var style = styles[geom.fontName];
+ if (style.vertical) {
+ angle += Math.PI / 2;
+ }
+ var fontHeight = Math.sqrt(tx[2] * tx[2] + tx[3] * tx[3]);
+ var fontAscent = fontHeight;
+ if (style.ascent) {
+ fontAscent = style.ascent * fontAscent;
+ } else if (style.descent) {
+ fontAscent = (1 + style.descent) * fontAscent;
+ }
+ var left;
+ var top;
+ if (angle === 0) {
+ left = tx[4];
+ top = tx[5] - fontAscent;
+ } else {
+ left = tx[4] + fontAscent * Math.sin(angle);
+ top = tx[5] - fontAscent * Math.cos(angle);
+ }
+ styleBuf[1] = left;
+ styleBuf[3] = top;
+ styleBuf[5] = fontHeight;
+ styleBuf[7] = style.fontFamily;
+ textDivProperties.style = styleBuf.join('');
+ textDiv.setAttribute('style', textDivProperties.style);
+ textDiv.textContent = geom.str;
+ if ((0, _dom_utils.getDefaultSetting)('pdfBug')) {
+ textDiv.dataset.fontName = geom.fontName;
+ }
+ if (angle !== 0) {
+ textDivProperties.angle = angle * (180 / Math.PI);
+ }
+ if (geom.str.length > 1) {
+ if (style.vertical) {
+ textDivProperties.canvasWidth = geom.height * task._viewport.scale;
+ } else {
+ textDivProperties.canvasWidth = geom.width * task._viewport.scale;
+ }
+ }
+ task._textDivProperties.set(textDiv, textDivProperties);
+ if (task._textContentStream) {
+ task._layoutText(textDiv);
+ }
+ if (task._enhanceTextSelection) {
+ var angleCos = 1,
+ angleSin = 0;
+ if (angle !== 0) {
+ angleCos = Math.cos(angle);
+ angleSin = Math.sin(angle);
+ }
+ var divWidth = (style.vertical ? geom.height : geom.width) * task._viewport.scale;
+ var divHeight = fontHeight;
+ var m, b;
+ if (angle !== 0) {
+ m = [angleCos, angleSin, -angleSin, angleCos, left, top];
+ b = _util.Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);
+ } else {
+ b = [left, top, left + divWidth, top + divHeight];
+ }
+ task._bounds.push({
+ left: b[0],
+ top: b[1],
+ right: b[2],
+ bottom: b[3],
+ div: textDiv,
+ size: [divWidth, divHeight],
+ m: m
+ });
+ }
+ }
+ function render(task) {
+ if (task._canceled) {
+ return;
+ }
+ var textDivs = task._textDivs;
+ var capability = task._capability;
+ var textDivsLength = textDivs.length;
+ if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {
+ task._renderingDone = true;
+ capability.resolve();
+ return;
+ }
+ if (!task._textContentStream) {
+ for (var i = 0; i < textDivsLength; i++) {
+ task._layoutText(textDivs[i]);
+ }
+ }
+ task._renderingDone = true;
+ capability.resolve();
+ }
+ function expand(task) {
+ var bounds = task._bounds;
+ var viewport = task._viewport;
+ var expanded = expandBounds(viewport.width, viewport.height, bounds);
+ for (var i = 0; i < expanded.length; i++) {
+ var div = bounds[i].div;
+ var divProperties = task._textDivProperties.get(div);
+ if (divProperties.angle === 0) {
+ divProperties.paddingLeft = bounds[i].left - expanded[i].left;
+ divProperties.paddingTop = bounds[i].top - expanded[i].top;
+ divProperties.paddingRight = expanded[i].right - bounds[i].right;
+ divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;
+ task._textDivProperties.set(div, divProperties);
+ continue;
+ }
+ var e = expanded[i],
+ b = bounds[i];
+ var m = b.m,
+ c = m[0],
+ s = m[1];
+ var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];
+ var ts = new Float64Array(64);
+ points.forEach(function (p, i) {
+ var t = _util.Util.applyTransform(p, m);
+ ts[i + 0] = c && (e.left - t[0]) / c;
+ ts[i + 4] = s && (e.top - t[1]) / s;
+ ts[i + 8] = c && (e.right - t[0]) / c;
+ ts[i + 12] = s && (e.bottom - t[1]) / s;
+ ts[i + 16] = s && (e.left - t[0]) / -s;
+ ts[i + 20] = c && (e.top - t[1]) / c;
+ ts[i + 24] = s && (e.right - t[0]) / -s;
+ ts[i + 28] = c && (e.bottom - t[1]) / c;
+ ts[i + 32] = c && (e.left - t[0]) / -c;
+ ts[i + 36] = s && (e.top - t[1]) / -s;
+ ts[i + 40] = c && (e.right - t[0]) / -c;
+ ts[i + 44] = s && (e.bottom - t[1]) / -s;
+ ts[i + 48] = s && (e.left - t[0]) / s;
+ ts[i + 52] = c && (e.top - t[1]) / -c;
+ ts[i + 56] = s && (e.right - t[0]) / s;
+ ts[i + 60] = c && (e.bottom - t[1]) / -c;
+ });
+ var findPositiveMin = function findPositiveMin(ts, offset, count) {
+ var result = 0;
+ for (var i = 0; i < count; i++) {
+ var t = ts[offset++];
+ if (t > 0) {
+ result = result ? Math.min(t, result) : t;
+ }
+ }
+ return result;
+ };
+ var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));
+ divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;
+ divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;
+ divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;
+ divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;
+ task._textDivProperties.set(div, divProperties);
+ }
+ }
+ function expandBounds(width, height, boxes) {
+ var bounds = boxes.map(function (box, i) {
+ return {
+ x1: box.left,
+ y1: box.top,
+ x2: box.right,
+ y2: box.bottom,
+ index: i,
+ x1New: undefined,
+ x2New: undefined
+ };
+ });
+ expandBoundsLTR(width, bounds);
+ var expanded = new Array(boxes.length);
+ bounds.forEach(function (b) {
+ var i = b.index;
+ expanded[i] = {
+ left: b.x1New,
+ top: 0,
+ right: b.x2New,
+ bottom: 0
+ };
+ });
+ boxes.map(function (box, i) {
+ var e = expanded[i],
+ b = bounds[i];
+ b.x1 = box.top;
+ b.y1 = width - e.right;
+ b.x2 = box.bottom;
+ b.y2 = width - e.left;
+ b.index = i;
+ b.x1New = undefined;
+ b.x2New = undefined;
+ });
+ expandBoundsLTR(height, bounds);
+ bounds.forEach(function (b) {
+ var i = b.index;
+ expanded[i].top = b.x1New;
+ expanded[i].bottom = b.x2New;
+ });
+ return expanded;
+ }
+ function expandBoundsLTR(width, bounds) {
+ bounds.sort(function (a, b) {
+ return a.x1 - b.x1 || a.index - b.index;
+ });
+ var fakeBoundary = {
+ x1: -Infinity,
+ y1: -Infinity,
+ x2: 0,
+ y2: Infinity,
+ index: -1,
+ x1New: 0,
+ x2New: 0
+ };
+ var horizon = [{
+ start: -Infinity,
+ end: Infinity,
+ boundary: fakeBoundary
+ }];
+ bounds.forEach(function (boundary) {
+ var i = 0;
+ while (i < horizon.length && horizon[i].end <= boundary.y1) {
+ i++;
+ }
+ var j = horizon.length - 1;
+ while (j >= 0 && horizon[j].start >= boundary.y2) {
+ j--;
+ }
+ var horizonPart, affectedBoundary;
+ var q,
+ k,
+ maxXNew = -Infinity;
+ for (q = i; q <= j; q++) {
+ horizonPart = horizon[q];
+ affectedBoundary = horizonPart.boundary;
+ var xNew;
+ if (affectedBoundary.x2 > boundary.x1) {
+ xNew = affectedBoundary.index > boundary.index ? affectedBoundary.x1New : boundary.x1;
+ } else if (affectedBoundary.x2New === undefined) {
+ xNew = (affectedBoundary.x2 + boundary.x1) / 2;
+ } else {
+ xNew = affectedBoundary.x2New;
+ }
+ if (xNew > maxXNew) {
+ maxXNew = xNew;
+ }
+ }
+ boundary.x1New = maxXNew;
+ for (q = i; q <= j; q++) {
+ horizonPart = horizon[q];
+ affectedBoundary = horizonPart.boundary;
+ if (affectedBoundary.x2New === undefined) {
+ if (affectedBoundary.x2 > boundary.x1) {
+ if (affectedBoundary.index > boundary.index) {
+ affectedBoundary.x2New = affectedBoundary.x2;
+ }
+ } else {
+ affectedBoundary.x2New = maxXNew;
+ }
+ } else if (affectedBoundary.x2New > maxXNew) {
+ affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);
+ }
+ }
+ var changedHorizon = [],
+ lastBoundary = null;
+ for (q = i; q <= j; q++) {
+ horizonPart = horizon[q];
+ affectedBoundary = horizonPart.boundary;
+ var useBoundary = affectedBoundary.x2 > boundary.x2 ? affectedBoundary : boundary;
+ if (lastBoundary === useBoundary) {
+ changedHorizon[changedHorizon.length - 1].end = horizonPart.end;
+ } else {
+ changedHorizon.push({
+ start: horizonPart.start,
+ end: horizonPart.end,
+ boundary: useBoundary
+ });
+ lastBoundary = useBoundary;
+ }
+ }
+ if (horizon[i].start < boundary.y1) {
+ changedHorizon[0].start = boundary.y1;
+ changedHorizon.unshift({
+ start: horizon[i].start,
+ end: boundary.y1,
+ boundary: horizon[i].boundary
+ });
+ }
+ if (boundary.y2 < horizon[j].end) {
+ changedHorizon[changedHorizon.length - 1].end = boundary.y2;
+ changedHorizon.push({
+ start: boundary.y2,
+ end: horizon[j].end,
+ boundary: horizon[j].boundary
+ });
+ }
+ for (q = i; q <= j; q++) {
+ horizonPart = horizon[q];
+ affectedBoundary = horizonPart.boundary;
+ if (affectedBoundary.x2New !== undefined) {
+ continue;
+ }
+ var used = false;
+ for (k = i - 1; !used && k >= 0 && horizon[k].start >= affectedBoundary.y1; k--) {
+ used = horizon[k].boundary === affectedBoundary;
+ }
+ for (k = j + 1; !used && k < horizon.length && horizon[k].end <= affectedBoundary.y2; k++) {
+ used = horizon[k].boundary === affectedBoundary;
+ }
+ for (k = 0; !used && k < changedHorizon.length; k++) {
+ used = changedHorizon[k].boundary === affectedBoundary;
+ }
+ if (!used) {
+ affectedBoundary.x2New = maxXNew;
+ }
+ }
+ Array.prototype.splice.apply(horizon, [i, j - i + 1].concat(changedHorizon));
+ });
+ horizon.forEach(function (horizonPart) {
+ var affectedBoundary = horizonPart.boundary;
+ if (affectedBoundary.x2New === undefined) {
+ affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);
+ }
+ });
+ }
+ function TextLayerRenderTask(_ref) {
+ var textContent = _ref.textContent,
+ textContentStream = _ref.textContentStream,
+ container = _ref.container,
+ viewport = _ref.viewport,
+ textDivs = _ref.textDivs,
+ textContentItemsStr = _ref.textContentItemsStr,
+ enhanceTextSelection = _ref.enhanceTextSelection;
+
+ this._textContent = textContent;
+ this._textContentStream = textContentStream;
+ this._container = container;
+ this._viewport = viewport;
+ this._textDivs = textDivs || [];
+ this._textContentItemsStr = textContentItemsStr || [];
+ this._enhanceTextSelection = !!enhanceTextSelection;
+ this._reader = null;
+ this._layoutTextLastFontSize = null;
+ this._layoutTextLastFontFamily = null;
+ this._layoutTextCtx = null;
+ this._textDivProperties = new WeakMap();
+ this._renderingDone = false;
+ this._canceled = false;
+ this._capability = (0, _util.createPromiseCapability)();
+ this._renderTimer = null;
+ this._bounds = [];
+ }
+ TextLayerRenderTask.prototype = {
+ get promise() {
+ return this._capability.promise;
+ },
+ cancel: function TextLayer_cancel() {
+ if (this._reader) {
+ this._reader.cancel(new _util.AbortException('text layer task cancelled'));
+ this._reader = null;
+ }
+ this._canceled = true;
+ if (this._renderTimer !== null) {
+ clearTimeout(this._renderTimer);
+ this._renderTimer = null;
+ }
+ this._capability.reject('canceled');
+ },
+ _processItems: function _processItems(items, styleCache) {
+ for (var i = 0, len = items.length; i < len; i++) {
+ this._textContentItemsStr.push(items[i].str);
+ appendText(this, items[i], styleCache);
+ }
+ },
+ _layoutText: function _layoutText(textDiv) {
+ var textLayerFrag = this._container;
+ var textDivProperties = this._textDivProperties.get(textDiv);
+ if (textDivProperties.isWhitespace) {
+ return;
+ }
+ var fontSize = textDiv.style.fontSize;
+ var fontFamily = textDiv.style.fontFamily;
+ if (fontSize !== this._layoutTextLastFontSize || fontFamily !== this._layoutTextLastFontFamily) {
+ this._layoutTextCtx.font = fontSize + ' ' + fontFamily;
+ this._lastFontSize = fontSize;
+ this._lastFontFamily = fontFamily;
+ }
+ var width = this._layoutTextCtx.measureText(textDiv.textContent).width;
+ var transform = '';
+ if (textDivProperties.canvasWidth !== 0 && width > 0) {
+ textDivProperties.scale = textDivProperties.canvasWidth / width;
+ transform = 'scaleX(' + textDivProperties.scale + ')';
+ }
+ if (textDivProperties.angle !== 0) {
+ transform = 'rotate(' + textDivProperties.angle + 'deg) ' + transform;
+ }
+ if (transform !== '') {
+ textDivProperties.originalTransform = transform;
+ _dom_utils.CustomStyle.setProp('transform', textDiv, transform);
+ }
+ this._textDivProperties.set(textDiv, textDivProperties);
+ textLayerFrag.appendChild(textDiv);
+ },
+
+ _render: function TextLayer_render(timeout) {
+ var _this = this;
+
+ var capability = (0, _util.createPromiseCapability)();
+ var styleCache = Object.create(null);
+ var canvas = document.createElement('canvas');
+ canvas.mozOpaque = true;
+ this._layoutTextCtx = canvas.getContext('2d', { alpha: false });
+ if (this._textContent) {
+ var textItems = this._textContent.items;
+ var textStyles = this._textContent.styles;
+ this._processItems(textItems, textStyles);
+ capability.resolve();
+ } else if (this._textContentStream) {
+ var pump = function pump() {
+ _this._reader.read().then(function (_ref2) {
+ var value = _ref2.value,
+ done = _ref2.done;
+
+ if (done) {
+ capability.resolve();
+ return;
+ }
+ _util.Util.extendObj(styleCache, value.styles);
+ _this._processItems(value.items, styleCache);
+ pump();
+ }, capability.reject);
+ };
+ this._reader = this._textContentStream.getReader();
+ pump();
+ } else {
+ throw new Error('Neither "textContent" nor "textContentStream"' + ' parameters specified.');
+ }
+ capability.promise.then(function () {
+ styleCache = null;
+ if (!timeout) {
+ render(_this);
+ } else {
+ _this._renderTimer = setTimeout(function () {
+ render(_this);
+ _this._renderTimer = null;
+ }, timeout);
+ }
+ }, this._capability.reject);
+ },
+ expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {
+ if (!this._enhanceTextSelection || !this._renderingDone) {
+ return;
+ }
+ if (this._bounds !== null) {
+ expand(this);
+ this._bounds = null;
+ }
+ for (var i = 0, ii = this._textDivs.length; i < ii; i++) {
+ var div = this._textDivs[i];
+ var divProperties = this._textDivProperties.get(div);
+ if (divProperties.isWhitespace) {
+ continue;
+ }
+ if (expandDivs) {
+ var transform = '',
+ padding = '';
+ if (divProperties.scale !== 1) {
+ transform = 'scaleX(' + divProperties.scale + ')';
+ }
+ if (divProperties.angle !== 0) {
+ transform = 'rotate(' + divProperties.angle + 'deg) ' + transform;
+ }
+ if (divProperties.paddingLeft !== 0) {
+ padding += ' padding-left: ' + divProperties.paddingLeft / divProperties.scale + 'px;';
+ transform += ' translateX(' + -divProperties.paddingLeft / divProperties.scale + 'px)';
+ }
+ if (divProperties.paddingTop !== 0) {
+ padding += ' padding-top: ' + divProperties.paddingTop + 'px;';
+ transform += ' translateY(' + -divProperties.paddingTop + 'px)';
+ }
+ if (divProperties.paddingRight !== 0) {
+ padding += ' padding-right: ' + divProperties.paddingRight / divProperties.scale + 'px;';
+ }
+ if (divProperties.paddingBottom !== 0) {
+ padding += ' padding-bottom: ' + divProperties.paddingBottom + 'px;';
+ }
+ if (padding !== '') {
+ div.setAttribute('style', divProperties.style + padding);
+ }
+ if (transform !== '') {
+ _dom_utils.CustomStyle.setProp('transform', div, transform);
+ }
+ } else {
+ div.style.padding = 0;
+ _dom_utils.CustomStyle.setProp('transform', div, divProperties.originalTransform || '');
+ }
+ }
+ }
+ };
+ function renderTextLayer(renderParameters) {
+ var task = new TextLayerRenderTask({
+ textContent: renderParameters.textContent,
+ textContentStream: renderParameters.textContentStream,
+ container: renderParameters.container,
+ viewport: renderParameters.viewport,
+ textDivs: renderParameters.textDivs,
+ textContentItemsStr: renderParameters.textContentItemsStr,
+ enhanceTextSelection: renderParameters.enhanceTextSelection
+ });
+ task._render(renderParameters.timeout);
+ return task;
+ }
+ return renderTextLayer;
+}();
+exports.renderTextLayer = renderTextLayer;
+
+/***/ }),
+/* 6 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+function fixMetadata(meta) {
+ return meta.replace(/>\\376\\377([^<]+)/g, function (all, codes) {
+ var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, function (code, d1, d2, d3) {
+ return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
+ });
+ var chars = '';
+ for (var i = 0; i < bytes.length; i += 2) {
+ var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);
+ chars += code >= 32 && code < 127 && code !== 60 && code !== 62 && code !== 38 ? String.fromCharCode(code) : '&#x' + (0x10000 + code).toString(16).substring(1) + ';';
+ }
+ return '>' + chars;
+ });
+}
+function Metadata(meta) {
+ if (typeof meta === 'string') {
+ meta = fixMetadata(meta);
+ var parser = new DOMParser();
+ meta = parser.parseFromString(meta, 'application/xml');
+ } else if (!(meta instanceof Document)) {
+ throw new Error('Metadata: Invalid metadata object');
+ }
+ this.metaDocument = meta;
+ this.metadata = Object.create(null);
+ this.parse();
+}
+Metadata.prototype = {
+ parse: function Metadata_parse() {
+ var doc = this.metaDocument;
+ var rdf = doc.documentElement;
+ if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
+ rdf = rdf.firstChild;
+ while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
+ rdf = rdf.nextSibling;
+ }
+ }
+ var nodeName = rdf ? rdf.nodeName.toLowerCase() : null;
+ if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {
+ return;
+ }
+ var children = rdf.childNodes,
+ desc,
+ entry,
+ name,
+ i,
+ ii,
+ length,
+ iLength;
+ for (i = 0, length = children.length; i < length; i++) {
+ desc = children[i];
+ if (desc.nodeName.toLowerCase() !== 'rdf:description') {
+ continue;
+ }
+ for (ii = 0, iLength = desc.childNodes.length; ii < iLength; ii++) {
+ if (desc.childNodes[ii].nodeName.toLowerCase() !== '#text') {
+ entry = desc.childNodes[ii];
+ name = entry.nodeName.toLowerCase();
+ this.metadata[name] = entry.textContent.trim();
+ }
+ }
+ }
+ },
+ get: function Metadata_get(name) {
+ return this.metadata[name] || null;
+ },
+ has: function Metadata_has(name) {
+ return typeof this.metadata[name] !== 'undefined';
+ }
+};
+exports.Metadata = Metadata;
+
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.WebGLUtils = undefined;
+
+var _dom_utils = __w_pdfjs_require__(1);
+
+var _util = __w_pdfjs_require__(0);
+
+var WebGLUtils = function WebGLUtilsClosure() {
+ function loadShader(gl, code, shaderType) {
+ var shader = gl.createShader(shaderType);
+ gl.shaderSource(shader, code);
+ gl.compileShader(shader);
+ var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
+ if (!compiled) {
+ var errorMsg = gl.getShaderInfoLog(shader);
+ throw new Error('Error during shader compilation: ' + errorMsg);
+ }
+ return shader;
+ }
+ function createVertexShader(gl, code) {
+ return loadShader(gl, code, gl.VERTEX_SHADER);
+ }
+ function createFragmentShader(gl, code) {
+ return loadShader(gl, code, gl.FRAGMENT_SHADER);
+ }
+ function createProgram(gl, shaders) {
+ var program = gl.createProgram();
+ for (var i = 0, ii = shaders.length; i < ii; ++i) {
+ gl.attachShader(program, shaders[i]);
+ }
+ gl.linkProgram(program);
+ var linked = gl.getProgramParameter(program, gl.LINK_STATUS);
+ if (!linked) {
+ var errorMsg = gl.getProgramInfoLog(program);
+ throw new Error('Error during program linking: ' + errorMsg);
+ }
+ return program;
+ }
+ function createTexture(gl, image, textureId) {
+ gl.activeTexture(textureId);
+ var texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_2D, texture);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
+ return texture;
+ }
+ var currentGL, currentCanvas;
+ function generateGL() {
+ if (currentGL) {
+ return;
+ }
+ currentCanvas = document.createElement('canvas');
+ currentGL = currentCanvas.getContext('webgl', { premultipliedalpha: false });
+ }
+ var smaskVertexShaderCode = '\
+ attribute vec2 a_position; \
+ attribute vec2 a_texCoord; \
+ \
+ uniform vec2 u_resolution; \
+ \
+ varying vec2 v_texCoord; \
+ \
+ void main() { \
+ vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \
+ gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
+ \
+ v_texCoord = a_texCoord; \
+ } ';
+ var smaskFragmentShaderCode = '\
+ precision mediump float; \
+ \
+ uniform vec4 u_backdrop; \
+ uniform int u_subtype; \
+ uniform sampler2D u_image; \
+ uniform sampler2D u_mask; \
+ \
+ varying vec2 v_texCoord; \
+ \
+ void main() { \
+ vec4 imageColor = texture2D(u_image, v_texCoord); \
+ vec4 maskColor = texture2D(u_mask, v_texCoord); \
+ if (u_backdrop.a > 0.0) { \
+ maskColor.rgb = maskColor.rgb * maskColor.a + \
+ u_backdrop.rgb * (1.0 - maskColor.a); \
+ } \
+ float lum; \
+ if (u_subtype == 0) { \
+ lum = maskColor.a; \
+ } else { \
+ lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \
+ maskColor.b * 0.11; \
+ } \
+ imageColor.a *= lum; \
+ imageColor.rgb *= imageColor.a; \
+ gl_FragColor = imageColor; \
+ } ';
+ var smaskCache = null;
+ function initSmaskGL() {
+ var canvas, gl;
+ generateGL();
+ canvas = currentCanvas;
+ currentCanvas = null;
+ gl = currentGL;
+ currentGL = null;
+ var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
+ var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
+ var program = createProgram(gl, [vertexShader, fragmentShader]);
+ gl.useProgram(program);
+ var cache = {};
+ cache.gl = gl;
+ cache.canvas = canvas;
+ cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
+ cache.positionLocation = gl.getAttribLocation(program, 'a_position');
+ cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');
+ cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');
+ var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');
+ var texLayerLocation = gl.getUniformLocation(program, 'u_image');
+ var texMaskLocation = gl.getUniformLocation(program, 'u_mask');
+ var texCoordBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]), gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(texCoordLocation);
+ gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
+ gl.uniform1i(texLayerLocation, 0);
+ gl.uniform1i(texMaskLocation, 1);
+ smaskCache = cache;
+ }
+ function composeSMask(layer, mask, properties) {
+ var width = layer.width,
+ height = layer.height;
+ if (!smaskCache) {
+ initSmaskGL();
+ }
+ var cache = smaskCache,
+ canvas = cache.canvas,
+ gl = cache.gl;
+ canvas.width = width;
+ canvas.height = height;
+ gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+ gl.uniform2f(cache.resolutionLocation, width, height);
+ if (properties.backdrop) {
+ gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], properties.backdrop[1], properties.backdrop[2], 1);
+ } else {
+ gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
+ }
+ gl.uniform1i(cache.subtypeLocation, properties.subtype === 'Luminosity' ? 1 : 0);
+ var texture = createTexture(gl, layer, gl.TEXTURE0);
+ var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
+ var buffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, width, 0, 0, height, 0, height, width, 0, width, height]), gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.positionLocation);
+ gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
+ gl.clearColor(0, 0, 0, 0);
+ gl.enable(gl.BLEND);
+ gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
+ gl.clear(gl.COLOR_BUFFER_BIT);
+ gl.drawArrays(gl.TRIANGLES, 0, 6);
+ gl.flush();
+ gl.deleteTexture(texture);
+ gl.deleteTexture(maskTexture);
+ gl.deleteBuffer(buffer);
+ return canvas;
+ }
+ var figuresVertexShaderCode = '\
+ attribute vec2 a_position; \
+ attribute vec3 a_color; \
+ \
+ uniform vec2 u_resolution; \
+ uniform vec2 u_scale; \
+ uniform vec2 u_offset; \
+ \
+ varying vec4 v_color; \
+ \
+ void main() { \
+ vec2 position = (a_position + u_offset) * u_scale; \
+ vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \
+ gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \
+ \
+ v_color = vec4(a_color / 255.0, 1.0); \
+ } ';
+ var figuresFragmentShaderCode = '\
+ precision mediump float; \
+ \
+ varying vec4 v_color; \
+ \
+ void main() { \
+ gl_FragColor = v_color; \
+ } ';
+ var figuresCache = null;
+ function initFiguresGL() {
+ var canvas, gl;
+ generateGL();
+ canvas = currentCanvas;
+ currentCanvas = null;
+ gl = currentGL;
+ currentGL = null;
+ var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
+ var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
+ var program = createProgram(gl, [vertexShader, fragmentShader]);
+ gl.useProgram(program);
+ var cache = {};
+ cache.gl = gl;
+ cache.canvas = canvas;
+ cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
+ cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');
+ cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');
+ cache.positionLocation = gl.getAttribLocation(program, 'a_position');
+ cache.colorLocation = gl.getAttribLocation(program, 'a_color');
+ figuresCache = cache;
+ }
+ function drawFigures(width, height, backgroundColor, figures, context) {
+ if (!figuresCache) {
+ initFiguresGL();
+ }
+ var cache = figuresCache,
+ canvas = cache.canvas,
+ gl = cache.gl;
+ canvas.width = width;
+ canvas.height = height;
+ gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+ gl.uniform2f(cache.resolutionLocation, width, height);
+ var count = 0;
+ var i, ii, rows;
+ for (i = 0, ii = figures.length; i < ii; i++) {
+ switch (figures[i].type) {
+ case 'lattice':
+ rows = figures[i].coords.length / figures[i].verticesPerRow | 0;
+ count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
+ break;
+ case 'triangles':
+ count += figures[i].coords.length;
+ break;
+ }
+ }
+ var coords = new Float32Array(count * 2);
+ var colors = new Uint8Array(count * 3);
+ var coordsMap = context.coords,
+ colorsMap = context.colors;
+ var pIndex = 0,
+ cIndex = 0;
+ for (i = 0, ii = figures.length; i < ii; i++) {
+ var figure = figures[i],
+ ps = figure.coords,
+ cs = figure.colors;
+ switch (figure.type) {
+ case 'lattice':
+ var cols = figure.verticesPerRow;
+ rows = ps.length / cols | 0;
+ for (var row = 1; row < rows; row++) {
+ var offset = row * cols + 1;
+ for (var col = 1; col < cols; col++, offset++) {
+ coords[pIndex] = coordsMap[ps[offset - cols - 1]];
+ coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
+ coords[pIndex + 2] = coordsMap[ps[offset - cols]];
+ coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
+ coords[pIndex + 4] = coordsMap[ps[offset - 1]];
+ coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
+ colors[cIndex] = colorsMap[cs[offset - cols - 1]];
+ colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
+ colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
+ colors[cIndex + 3] = colorsMap[cs[offset - cols]];
+ colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
+ colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
+ colors[cIndex + 6] = colorsMap[cs[offset - 1]];
+ colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
+ colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
+ coords[pIndex + 6] = coords[pIndex + 2];
+ coords[pIndex + 7] = coords[pIndex + 3];
+ coords[pIndex + 8] = coords[pIndex + 4];
+ coords[pIndex + 9] = coords[pIndex + 5];
+ coords[pIndex + 10] = coordsMap[ps[offset]];
+ coords[pIndex + 11] = coordsMap[ps[offset] + 1];
+ colors[cIndex + 9] = colors[cIndex + 3];
+ colors[cIndex + 10] = colors[cIndex + 4];
+ colors[cIndex + 11] = colors[cIndex + 5];
+ colors[cIndex + 12] = colors[cIndex + 6];
+ colors[cIndex + 13] = colors[cIndex + 7];
+ colors[cIndex + 14] = colors[cIndex + 8];
+ colors[cIndex + 15] = colorsMap[cs[offset]];
+ colors[cIndex + 16] = colorsMap[cs[offset] + 1];
+ colors[cIndex + 17] = colorsMap[cs[offset] + 2];
+ pIndex += 12;
+ cIndex += 18;
+ }
+ }
+ break;
+ case 'triangles':
+ for (var j = 0, jj = ps.length; j < jj; j++) {
+ coords[pIndex] = coordsMap[ps[j]];
+ coords[pIndex + 1] = coordsMap[ps[j] + 1];
+ colors[cIndex] = colorsMap[cs[j]];
+ colors[cIndex + 1] = colorsMap[cs[j] + 1];
+ colors[cIndex + 2] = colorsMap[cs[j] + 2];
+ pIndex += 2;
+ cIndex += 3;
+ }
+ break;
+ }
+ }
+ if (backgroundColor) {
+ gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, backgroundColor[2] / 255, 1.0);
+ } else {
+ gl.clearColor(0, 0, 0, 0);
+ }
+ gl.clear(gl.COLOR_BUFFER_BIT);
+ var coordsBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.positionLocation);
+ gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
+ var colorsBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
+ gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
+ gl.enableVertexAttribArray(cache.colorLocation);
+ gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, 0, 0);
+ gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
+ gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
+ gl.drawArrays(gl.TRIANGLES, 0, count);
+ gl.flush();
+ gl.deleteBuffer(coordsBuffer);
+ gl.deleteBuffer(colorsBuffer);
+ return canvas;
+ }
+ function cleanup() {
+ if (smaskCache && smaskCache.canvas) {
+ smaskCache.canvas.width = 0;
+ smaskCache.canvas.height = 0;
+ }
+ if (figuresCache && figuresCache.canvas) {
+ figuresCache.canvas.width = 0;
+ figuresCache.canvas.height = 0;
+ }
+ smaskCache = null;
+ figuresCache = null;
+ }
+ return {
+ get isEnabled() {
+ if ((0, _dom_utils.getDefaultSetting)('disableWebGL')) {
+ return false;
+ }
+ var enabled = false;
+ try {
+ generateGL();
+ enabled = !!currentGL;
+ } catch (e) {}
+ return (0, _util.shadow)(this, 'isEnabled', enabled);
+ },
+ composeSMask: composeSMask,
+ drawFigures: drawFigures,
+ clear: cleanup
+ };
+}();
+exports.WebGLUtils = WebGLUtils;
+
+/***/ }),
+/* 8 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.PDFJS = exports.isWorker = exports.globalScope = undefined;
+
+var _api = __w_pdfjs_require__(2);
+
+var _dom_utils = __w_pdfjs_require__(1);
+
+var _util = __w_pdfjs_require__(0);
+
+var _annotation_layer = __w_pdfjs_require__(3);
+
+var _metadata = __w_pdfjs_require__(6);
+
+var _text_layer = __w_pdfjs_require__(5);
+
+var _svg = __w_pdfjs_require__(4);
+
+var isWorker = typeof window === 'undefined';
+if (!_util.globalScope.PDFJS) {
+ _util.globalScope.PDFJS = {};
+}
+var PDFJS = _util.globalScope.PDFJS;
+{
+ PDFJS.version = '1.9.426';
+ PDFJS.build = '2558a58d';
+}
+PDFJS.pdfBug = false;
+if (PDFJS.verbosity !== undefined) {
+ (0, _util.setVerbosityLevel)(PDFJS.verbosity);
+}
+delete PDFJS.verbosity;
+Object.defineProperty(PDFJS, 'verbosity', {
+ get: function get() {
+ return (0, _util.getVerbosityLevel)();
+ },
+ set: function set(level) {
+ (0, _util.setVerbosityLevel)(level);
+ },
+
+ enumerable: true,
+ configurable: true
+});
+PDFJS.VERBOSITY_LEVELS = _util.VERBOSITY_LEVELS;
+PDFJS.OPS = _util.OPS;
+PDFJS.UNSUPPORTED_FEATURES = _util.UNSUPPORTED_FEATURES;
+PDFJS.isValidUrl = _dom_utils.isValidUrl;
+PDFJS.shadow = _util.shadow;
+PDFJS.createBlob = _util.createBlob;
+PDFJS.createObjectURL = function PDFJS_createObjectURL(data, contentType) {
+ return (0, _util.createObjectURL)(data, contentType, PDFJS.disableCreateObjectURL);
+};
+Object.defineProperty(PDFJS, 'isLittleEndian', {
+ configurable: true,
+ get: function PDFJS_isLittleEndian() {
+ return (0, _util.shadow)(PDFJS, 'isLittleEndian', (0, _util.isLittleEndian)());
+ }
+});
+PDFJS.removeNullCharacters = _util.removeNullCharacters;
+PDFJS.PasswordResponses = _util.PasswordResponses;
+PDFJS.PasswordException = _util.PasswordException;
+PDFJS.UnknownErrorException = _util.UnknownErrorException;
+PDFJS.InvalidPDFException = _util.InvalidPDFException;
+PDFJS.MissingPDFException = _util.MissingPDFException;
+PDFJS.UnexpectedResponseException = _util.UnexpectedResponseException;
+PDFJS.Util = _util.Util;
+PDFJS.PageViewport = _util.PageViewport;
+PDFJS.createPromiseCapability = _util.createPromiseCapability;
+PDFJS.maxImageSize = PDFJS.maxImageSize === undefined ? -1 : PDFJS.maxImageSize;
+PDFJS.cMapUrl = PDFJS.cMapUrl === undefined ? null : PDFJS.cMapUrl;
+PDFJS.cMapPacked = PDFJS.cMapPacked === undefined ? false : PDFJS.cMapPacked;
+PDFJS.disableFontFace = PDFJS.disableFontFace === undefined ? false : PDFJS.disableFontFace;
+PDFJS.imageResourcesPath = PDFJS.imageResourcesPath === undefined ? '' : PDFJS.imageResourcesPath;
+PDFJS.disableWorker = PDFJS.disableWorker === undefined ? false : PDFJS.disableWorker;
+PDFJS.workerSrc = PDFJS.workerSrc === undefined ? null : PDFJS.workerSrc;
+PDFJS.workerPort = PDFJS.workerPort === undefined ? null : PDFJS.workerPort;
+PDFJS.disableRange = PDFJS.disableRange === undefined ? false : PDFJS.disableRange;
+PDFJS.disableStream = PDFJS.disableStream === undefined ? false : PDFJS.disableStream;
+PDFJS.disableAutoFetch = PDFJS.disableAutoFetch === undefined ? false : PDFJS.disableAutoFetch;
+PDFJS.pdfBug = PDFJS.pdfBug === undefined ? false : PDFJS.pdfBug;
+PDFJS.postMessageTransfers = PDFJS.postMessageTransfers === undefined ? true : PDFJS.postMessageTransfers;
+PDFJS.disableCreateObjectURL = PDFJS.disableCreateObjectURL === undefined ? false : PDFJS.disableCreateObjectURL;
+PDFJS.disableWebGL = PDFJS.disableWebGL === undefined ? true : PDFJS.disableWebGL;
+PDFJS.externalLinkTarget = PDFJS.externalLinkTarget === undefined ? _dom_utils.LinkTarget.NONE : PDFJS.externalLinkTarget;
+PDFJS.externalLinkRel = PDFJS.externalLinkRel === undefined ? _dom_utils.DEFAULT_LINK_REL : PDFJS.externalLinkRel;
+PDFJS.isEvalSupported = PDFJS.isEvalSupported === undefined ? true : PDFJS.isEvalSupported;
+PDFJS.pdfjsNext = PDFJS.pdfjsNext === undefined ? false : PDFJS.pdfjsNext;
+{
+ var savedOpenExternalLinksInNewWindow = PDFJS.openExternalLinksInNewWindow;
+ delete PDFJS.openExternalLinksInNewWindow;
+ Object.defineProperty(PDFJS, 'openExternalLinksInNewWindow', {
+ get: function get() {
+ return PDFJS.externalLinkTarget === _dom_utils.LinkTarget.BLANK;
+ },
+ set: function set(value) {
+ if (value) {
+ (0, _util.deprecated)('PDFJS.openExternalLinksInNewWindow, please use ' + '"PDFJS.externalLinkTarget = PDFJS.LinkTarget.BLANK" instead.');
+ }
+ if (PDFJS.externalLinkTarget !== _dom_utils.LinkTarget.NONE) {
+ (0, _util.warn)('PDFJS.externalLinkTarget is already initialized');
+ return;
+ }
+ PDFJS.externalLinkTarget = value ? _dom_utils.LinkTarget.BLANK : _dom_utils.LinkTarget.NONE;
+ },
+
+ enumerable: true,
+ configurable: true
+ });
+ if (savedOpenExternalLinksInNewWindow) {
+ PDFJS.openExternalLinksInNewWindow = savedOpenExternalLinksInNewWindow;
+ }
+}
+PDFJS.getDocument = _api.getDocument;
+PDFJS.LoopbackPort = _api.LoopbackPort;
+PDFJS.PDFDataRangeTransport = _api.PDFDataRangeTransport;
+PDFJS.PDFWorker = _api.PDFWorker;
+PDFJS.hasCanvasTypedArrays = true;
+PDFJS.CustomStyle = _dom_utils.CustomStyle;
+PDFJS.LinkTarget = _dom_utils.LinkTarget;
+PDFJS.addLinkAttributes = _dom_utils.addLinkAttributes;
+PDFJS.getFilenameFromUrl = _dom_utils.getFilenameFromUrl;
+PDFJS.isExternalLinkTargetSet = _dom_utils.isExternalLinkTargetSet;
+PDFJS.AnnotationLayer = _annotation_layer.AnnotationLayer;
+PDFJS.renderTextLayer = _text_layer.renderTextLayer;
+PDFJS.Metadata = _metadata.Metadata;
+PDFJS.SVGGraphics = _svg.SVGGraphics;
+PDFJS.UnsupportedManager = _api._UnsupportedManager;
+exports.globalScope = _util.globalScope;
+exports.isWorker = isWorker;
+exports.PDFJS = PDFJS;
+
+/***/ }),
+/* 9 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.NetworkManager = exports.PDFNetworkStream = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var _api = __w_pdfjs_require__(2);
+
+;
+var OK_RESPONSE = 200;
+var PARTIAL_CONTENT_RESPONSE = 206;
+function NetworkManager(url, args) {
+ this.url = url;
+ args = args || {};
+ this.isHttp = /^https?:/i.test(url);
+ this.httpHeaders = this.isHttp && args.httpHeaders || {};
+ this.withCredentials = args.withCredentials || false;
+ this.getXhr = args.getXhr || function NetworkManager_getXhr() {
+ return new XMLHttpRequest();
+ };
+ this.currXhrId = 0;
+ this.pendingRequests = Object.create(null);
+ this.loadedRequests = Object.create(null);
+}
+function getArrayBuffer(xhr) {
+ var data = xhr.response;
+ if (typeof data !== 'string') {
+ return data;
+ }
+ var length = data.length;
+ var array = new Uint8Array(length);
+ for (var i = 0; i < length; i++) {
+ array[i] = data.charCodeAt(i) & 0xFF;
+ }
+ return array.buffer;
+}
+var supportsMozChunked = function supportsMozChunkedClosure() {
+ try {
+ var x = new XMLHttpRequest();
+ x.open('GET', _util.globalScope.location.href);
+ x.responseType = 'moz-chunked-arraybuffer';
+ return x.responseType === 'moz-chunked-arraybuffer';
+ } catch (e) {
+ return false;
+ }
+}();
+NetworkManager.prototype = {
+ requestRange: function NetworkManager_requestRange(begin, end, listeners) {
+ var args = {
+ begin: begin,
+ end: end
+ };
+ for (var prop in listeners) {
+ args[prop] = listeners[prop];
+ }
+ return this.request(args);
+ },
+ requestFull: function NetworkManager_requestFull(listeners) {
+ return this.request(listeners);
+ },
+ request: function NetworkManager_request(args) {
+ var xhr = this.getXhr();
+ var xhrId = this.currXhrId++;
+ var pendingRequest = this.pendingRequests[xhrId] = { xhr: xhr };
+ xhr.open('GET', this.url);
+ xhr.withCredentials = this.withCredentials;
+ for (var property in this.httpHeaders) {
+ var value = this.httpHeaders[property];
+ if (typeof value === 'undefined') {
+ continue;
+ }
+ xhr.setRequestHeader(property, value);
+ }
+ if (this.isHttp && 'begin' in args && 'end' in args) {
+ var rangeStr = args.begin + '-' + (args.end - 1);
+ xhr.setRequestHeader('Range', 'bytes=' + rangeStr);
+ pendingRequest.expectedStatus = 206;
+ } else {
+ pendingRequest.expectedStatus = 200;
+ }
+ var useMozChunkedLoading = supportsMozChunked && !!args.onProgressiveData;
+ if (useMozChunkedLoading) {
+ xhr.responseType = 'moz-chunked-arraybuffer';
+ pendingRequest.onProgressiveData = args.onProgressiveData;
+ pendingRequest.mozChunked = true;
+ } else {
+ xhr.responseType = 'arraybuffer';
+ }
+ if (args.onError) {
+ xhr.onerror = function (evt) {
+ args.onError(xhr.status);
+ };
+ }
+ xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
+ xhr.onprogress = this.onProgress.bind(this, xhrId);
+ pendingRequest.onHeadersReceived = args.onHeadersReceived;
+ pendingRequest.onDone = args.onDone;
+ pendingRequest.onError = args.onError;
+ pendingRequest.onProgress = args.onProgress;
+ xhr.send(null);
+ return xhrId;
+ },
+ onProgress: function NetworkManager_onProgress(xhrId, evt) {
+ var pendingRequest = this.pendingRequests[xhrId];
+ if (!pendingRequest) {
+ return;
+ }
+ if (pendingRequest.mozChunked) {
+ var chunk = getArrayBuffer(pendingRequest.xhr);
+ pendingRequest.onProgressiveData(chunk);
+ }
+ var onProgress = pendingRequest.onProgress;
+ if (onProgress) {
+ onProgress(evt);
+ }
+ },
+ onStateChange: function NetworkManager_onStateChange(xhrId, evt) {
+ var pendingRequest = this.pendingRequests[xhrId];
+ if (!pendingRequest) {
+ return;
+ }
+ var xhr = pendingRequest.xhr;
+ if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
+ pendingRequest.onHeadersReceived();
+ delete pendingRequest.onHeadersReceived;
+ }
+ if (xhr.readyState !== 4) {
+ return;
+ }
+ if (!(xhrId in this.pendingRequests)) {
+ return;
+ }
+ delete this.pendingRequests[xhrId];
+ if (xhr.status === 0 && this.isHttp) {
+ if (pendingRequest.onError) {
+ pendingRequest.onError(xhr.status);
+ }
+ return;
+ }
+ var xhrStatus = xhr.status || OK_RESPONSE;
+ var ok_response_on_range_request = xhrStatus === OK_RESPONSE && pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;
+ if (!ok_response_on_range_request && xhrStatus !== pendingRequest.expectedStatus) {
+ if (pendingRequest.onError) {
+ pendingRequest.onError(xhr.status);
+ }
+ return;
+ }
+ this.loadedRequests[xhrId] = true;
+ var chunk = getArrayBuffer(xhr);
+ if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
+ var rangeHeader = xhr.getResponseHeader('Content-Range');
+ var matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
+ var begin = parseInt(matches[1], 10);
+ pendingRequest.onDone({
+ begin: begin,
+ chunk: chunk
+ });
+ } else if (pendingRequest.onProgressiveData) {
+ pendingRequest.onDone(null);
+ } else if (chunk) {
+ pendingRequest.onDone({
+ begin: 0,
+ chunk: chunk
+ });
+ } else if (pendingRequest.onError) {
+ pendingRequest.onError(xhr.status);
+ }
+ },
+ hasPendingRequests: function NetworkManager_hasPendingRequests() {
+ for (var xhrId in this.pendingRequests) {
+ return true;
+ }
+ return false;
+ },
+ getRequestXhr: function NetworkManager_getXhr(xhrId) {
+ return this.pendingRequests[xhrId].xhr;
+ },
+ isStreamingRequest: function NetworkManager_isStreamingRequest(xhrId) {
+ return !!this.pendingRequests[xhrId].onProgressiveData;
+ },
+ isPendingRequest: function NetworkManager_isPendingRequest(xhrId) {
+ return xhrId in this.pendingRequests;
+ },
+ isLoadedRequest: function NetworkManager_isLoadedRequest(xhrId) {
+ return xhrId in this.loadedRequests;
+ },
+ abortAllRequests: function NetworkManager_abortAllRequests() {
+ for (var xhrId in this.pendingRequests) {
+ this.abortRequest(xhrId | 0);
+ }
+ },
+ abortRequest: function NetworkManager_abortRequest(xhrId) {
+ var xhr = this.pendingRequests[xhrId].xhr;
+ delete this.pendingRequests[xhrId];
+ xhr.abort();
+ }
+};
+function PDFNetworkStream(options) {
+ this._options = options;
+ var source = options.source;
+ this._manager = new NetworkManager(source.url, {
+ httpHeaders: source.httpHeaders,
+ withCredentials: source.withCredentials
+ });
+ this._rangeChunkSize = source.rangeChunkSize;
+ this._fullRequestReader = null;
+ this._rangeRequestReaders = [];
+}
+PDFNetworkStream.prototype = {
+ _onRangeRequestReaderClosed: function PDFNetworkStream_onRangeRequestReaderClosed(reader) {
+ var i = this._rangeRequestReaders.indexOf(reader);
+ if (i >= 0) {
+ this._rangeRequestReaders.splice(i, 1);
+ }
+ },
+ getFullReader: function PDFNetworkStream_getFullReader() {
+ (0, _util.assert)(!this._fullRequestReader);
+ this._fullRequestReader = new PDFNetworkStreamFullRequestReader(this._manager, this._options);
+ return this._fullRequestReader;
+ },
+ getRangeReader: function PDFNetworkStream_getRangeReader(begin, end) {
+ var reader = new PDFNetworkStreamRangeRequestReader(this._manager, begin, end);
+ reader.onClosed = this._onRangeRequestReaderClosed.bind(this);
+ this._rangeRequestReaders.push(reader);
+ return reader;
+ },
+ cancelAllRequests: function PDFNetworkStream_cancelAllRequests(reason) {
+ if (this._fullRequestReader) {
+ this._fullRequestReader.cancel(reason);
+ }
+ var readers = this._rangeRequestReaders.slice(0);
+ readers.forEach(function (reader) {
+ reader.cancel(reason);
+ });
+ }
+};
+function PDFNetworkStreamFullRequestReader(manager, options) {
+ this._manager = manager;
+ var source = options.source;
+ var args = {
+ onHeadersReceived: this._onHeadersReceived.bind(this),
+ onProgressiveData: source.disableStream ? null : this._onProgressiveData.bind(this),
+ onDone: this._onDone.bind(this),
+ onError: this._onError.bind(this),
+ onProgress: this._onProgress.bind(this)
+ };
+ this._url = source.url;
+ this._fullRequestId = manager.requestFull(args);
+ this._headersReceivedCapability = (0, _util.createPromiseCapability)();
+ this._disableRange = options.disableRange || false;
+ this._contentLength = source.length;
+ this._rangeChunkSize = source.rangeChunkSize;
+ if (!this._rangeChunkSize && !this._disableRange) {
+ this._disableRange = true;
+ }
+ this._isStreamingSupported = false;
+ this._isRangeSupported = false;
+ this._cachedChunks = [];
+ this._requests = [];
+ this._done = false;
+ this._storedError = undefined;
+ this.onProgress = null;
+}
+PDFNetworkStreamFullRequestReader.prototype = {
+ _validateRangeRequestCapabilities: function PDFNetworkStreamFullRequestReader_validateRangeRequestCapabilities() {
+ if (this._disableRange) {
+ return false;
+ }
+ var networkManager = this._manager;
+ if (!networkManager.isHttp) {
+ return false;
+ }
+ var fullRequestXhrId = this._fullRequestId;
+ var fullRequestXhr = networkManager.getRequestXhr(fullRequestXhrId);
+ if (fullRequestXhr.getResponseHeader('Accept-Ranges') !== 'bytes') {
+ return false;
+ }
+ var contentEncoding = fullRequestXhr.getResponseHeader('Content-Encoding') || 'identity';
+ if (contentEncoding !== 'identity') {
+ return false;
+ }
+ var length = fullRequestXhr.getResponseHeader('Content-Length');
+ length = parseInt(length, 10);
+ if (!(0, _util.isInt)(length)) {
+ return false;
+ }
+ this._contentLength = length;
+ if (length <= 2 * this._rangeChunkSize) {
+ return false;
+ }
+ return true;
+ },
+ _onHeadersReceived: function PDFNetworkStreamFullRequestReader_onHeadersReceived() {
+ if (this._validateRangeRequestCapabilities()) {
+ this._isRangeSupported = true;
+ }
+ var networkManager = this._manager;
+ var fullRequestXhrId = this._fullRequestId;
+ if (networkManager.isStreamingRequest(fullRequestXhrId)) {
+ this._isStreamingSupported = true;
+ } else if (this._isRangeSupported) {
+ networkManager.abortRequest(fullRequestXhrId);
+ }
+ this._headersReceivedCapability.resolve();
+ },
+ _onProgressiveData: function PDFNetworkStreamFullRequestReader_onProgressiveData(chunk) {
+ if (this._requests.length > 0) {
+ var requestCapability = this._requests.shift();
+ requestCapability.resolve({
+ value: chunk,
+ done: false
+ });
+ } else {
+ this._cachedChunks.push(chunk);
+ }
+ },
+ _onDone: function PDFNetworkStreamFullRequestReader_onDone(args) {
+ if (args) {
+ this._onProgressiveData(args.chunk);
+ }
+ this._done = true;
+ if (this._cachedChunks.length > 0) {
+ return;
+ }
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ },
+ _onError: function PDFNetworkStreamFullRequestReader_onError(status) {
+ var url = this._url;
+ var exception;
+ if (status === 404 || status === 0 && /^file:/.test(url)) {
+ exception = new _util.MissingPDFException('Missing PDF "' + url + '".');
+ } else {
+ exception = new _util.UnexpectedResponseException('Unexpected server response (' + status + ') while retrieving PDF "' + url + '".', status);
+ }
+ this._storedError = exception;
+ this._headersReceivedCapability.reject(exception);
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.reject(exception);
+ });
+ this._requests = [];
+ this._cachedChunks = [];
+ },
+ _onProgress: function PDFNetworkStreamFullRequestReader_onProgress(data) {
+ if (this.onProgress) {
+ this.onProgress({
+ loaded: data.loaded,
+ total: data.lengthComputable ? data.total : this._contentLength
+ });
+ }
+ },
+ get isRangeSupported() {
+ return this._isRangeSupported;
+ },
+ get isStreamingSupported() {
+ return this._isStreamingSupported;
+ },
+ get contentLength() {
+ return this._contentLength;
+ },
+ get headersReady() {
+ return this._headersReceivedCapability.promise;
+ },
+ read: function PDFNetworkStreamFullRequestReader_read() {
+ if (this._storedError) {
+ return Promise.reject(this._storedError);
+ }
+ if (this._cachedChunks.length > 0) {
+ var chunk = this._cachedChunks.shift();
+ return Promise.resolve({
+ value: chunk,
+ done: false
+ });
+ }
+ if (this._done) {
+ return Promise.resolve({
+ value: undefined,
+ done: true
+ });
+ }
+ var requestCapability = (0, _util.createPromiseCapability)();
+ this._requests.push(requestCapability);
+ return requestCapability.promise;
+ },
+ cancel: function PDFNetworkStreamFullRequestReader_cancel(reason) {
+ this._done = true;
+ this._headersReceivedCapability.reject(reason);
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ if (this._manager.isPendingRequest(this._fullRequestId)) {
+ this._manager.abortRequest(this._fullRequestId);
+ }
+ this._fullRequestReader = null;
+ }
+};
+function PDFNetworkStreamRangeRequestReader(manager, begin, end) {
+ this._manager = manager;
+ var args = {
+ onDone: this._onDone.bind(this),
+ onProgress: this._onProgress.bind(this)
+ };
+ this._requestId = manager.requestRange(begin, end, args);
+ this._requests = [];
+ this._queuedChunk = null;
+ this._done = false;
+ this.onProgress = null;
+ this.onClosed = null;
+}
+PDFNetworkStreamRangeRequestReader.prototype = {
+ _close: function PDFNetworkStreamRangeRequestReader_close() {
+ if (this.onClosed) {
+ this.onClosed(this);
+ }
+ },
+ _onDone: function PDFNetworkStreamRangeRequestReader_onDone(data) {
+ var chunk = data.chunk;
+ if (this._requests.length > 0) {
+ var requestCapability = this._requests.shift();
+ requestCapability.resolve({
+ value: chunk,
+ done: false
+ });
+ } else {
+ this._queuedChunk = chunk;
+ }
+ this._done = true;
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ this._close();
+ },
+ _onProgress: function PDFNetworkStreamRangeRequestReader_onProgress(evt) {
+ if (!this.isStreamingSupported && this.onProgress) {
+ this.onProgress({ loaded: evt.loaded });
+ }
+ },
+ get isStreamingSupported() {
+ return false;
+ },
+ read: function PDFNetworkStreamRangeRequestReader_read() {
+ if (this._queuedChunk !== null) {
+ var chunk = this._queuedChunk;
+ this._queuedChunk = null;
+ return Promise.resolve({
+ value: chunk,
+ done: false
+ });
+ }
+ if (this._done) {
+ return Promise.resolve({
+ value: undefined,
+ done: true
+ });
+ }
+ var requestCapability = (0, _util.createPromiseCapability)();
+ this._requests.push(requestCapability);
+ return requestCapability.promise;
+ },
+ cancel: function PDFNetworkStreamRangeRequestReader_cancel(reason) {
+ this._done = true;
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ if (this._manager.isPendingRequest(this._requestId)) {
+ this._manager.abortRequest(this._requestId);
+ }
+ this._close();
+ }
+};
+(0, _api.setPDFNetworkStreamClass)(PDFNetworkStream);
+exports.PDFNetworkStream = PDFNetworkStream;
+exports.NetworkManager = NetworkManager;
+
+/***/ }),
+/* 10 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+var _typeof2 = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+(function (e, a) {
+ for (var i in a) {
+ e[i] = a[i];
+ }
+})(exports, function (modules) {
+ var installedModules = {};
+ function __w_pdfjs_require__(moduleId) {
+ if (installedModules[moduleId]) return installedModules[moduleId].exports;
+ var module = installedModules[moduleId] = {
+ i: moduleId,
+ l: false,
+ exports: {}
+ };
+ modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
+ module.l = true;
+ return module.exports;
+ }
+ __w_pdfjs_require__.m = modules;
+ __w_pdfjs_require__.c = installedModules;
+ __w_pdfjs_require__.i = function (value) {
+ return value;
+ };
+ __w_pdfjs_require__.d = function (exports, name, getter) {
+ if (!__w_pdfjs_require__.o(exports, name)) {
+ Object.defineProperty(exports, name, {
+ configurable: false,
+ enumerable: true,
+ get: getter
+ });
+ }
+ };
+ __w_pdfjs_require__.n = function (module) {
+ var getter = module && module.__esModule ? function getDefault() {
+ return module['default'];
+ } : function getModuleExports() {
+ return module;
+ };
+ __w_pdfjs_require__.d(getter, 'a', getter);
+ return getter;
+ };
+ __w_pdfjs_require__.o = function (object, property) {
+ return Object.prototype.hasOwnProperty.call(object, property);
+ };
+ __w_pdfjs_require__.p = "";
+ return __w_pdfjs_require__(__w_pdfjs_require__.s = 7);
+}([function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var _typeof = typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol" ? function (obj) {
+ return typeof obj === 'undefined' ? 'undefined' : _typeof2(obj);
+ } : function (obj) {
+ return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj === 'undefined' ? 'undefined' : _typeof2(obj);
+ };
+ var _require = __w_pdfjs_require__(1),
+ assert = _require.assert;
+ function IsPropertyKey(argument) {
+ return typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';
+ }
+ exports.typeIsObject = function (x) {
+ return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x !== null || typeof x === 'function';
+ };
+ exports.createDataProperty = function (o, p, v) {
+ assert(exports.typeIsObject(o));
+ Object.defineProperty(o, p, {
+ value: v,
+ writable: true,
+ enumerable: true,
+ configurable: true
+ });
+ };
+ exports.createArrayFromList = function (elements) {
+ return elements.slice();
+ };
+ exports.ArrayBufferCopy = function (dest, destOffset, src, srcOffset, n) {
+ new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);
+ };
+ exports.CreateIterResultObject = function (value, done) {
+ assert(typeof done === 'boolean');
+ var obj = {};
+ Object.defineProperty(obj, 'value', {
+ value: value,
+ enumerable: true,
+ writable: true,
+ configurable: true
+ });
+ Object.defineProperty(obj, 'done', {
+ value: done,
+ enumerable: true,
+ writable: true,
+ configurable: true
+ });
+ return obj;
+ };
+ exports.IsFiniteNonNegativeNumber = function (v) {
+ if (Number.isNaN(v)) {
+ return false;
+ }
+ if (v === Infinity) {
+ return false;
+ }
+ if (v < 0) {
+ return false;
+ }
+ return true;
+ };
+ function Call(F, V, args) {
+ if (typeof F !== 'function') {
+ throw new TypeError('Argument is not a function');
+ }
+ return Function.prototype.apply.call(F, V, args);
+ }
+ exports.InvokeOrNoop = function (O, P, args) {
+ assert(O !== undefined);
+ assert(IsPropertyKey(P));
+ assert(Array.isArray(args));
+ var method = O[P];
+ if (method === undefined) {
+ return undefined;
+ }
+ return Call(method, O, args);
+ };
+ exports.PromiseInvokeOrNoop = function (O, P, args) {
+ assert(O !== undefined);
+ assert(IsPropertyKey(P));
+ assert(Array.isArray(args));
+ try {
+ return Promise.resolve(exports.InvokeOrNoop(O, P, args));
+ } catch (returnValueE) {
+ return Promise.reject(returnValueE);
+ }
+ };
+ exports.PromiseInvokeOrPerformFallback = function (O, P, args, F, argsF) {
+ assert(O !== undefined);
+ assert(IsPropertyKey(P));
+ assert(Array.isArray(args));
+ assert(Array.isArray(argsF));
+ var method = void 0;
+ try {
+ method = O[P];
+ } catch (methodE) {
+ return Promise.reject(methodE);
+ }
+ if (method === undefined) {
+ return F.apply(null, argsF);
+ }
+ try {
+ return Promise.resolve(Call(method, O, args));
+ } catch (e) {
+ return Promise.reject(e);
+ }
+ };
+ exports.TransferArrayBuffer = function (O) {
+ return O.slice();
+ };
+ exports.ValidateAndNormalizeHighWaterMark = function (highWaterMark) {
+ highWaterMark = Number(highWaterMark);
+ if (Number.isNaN(highWaterMark) || highWaterMark < 0) {
+ throw new RangeError('highWaterMark property of a queuing strategy must be non-negative and non-NaN');
+ }
+ return highWaterMark;
+ };
+ exports.ValidateAndNormalizeQueuingStrategy = function (size, highWaterMark) {
+ if (size !== undefined && typeof size !== 'function') {
+ throw new TypeError('size property of a queuing strategy must be a function');
+ }
+ highWaterMark = exports.ValidateAndNormalizeHighWaterMark(highWaterMark);
+ return {
+ size: size,
+ highWaterMark: highWaterMark
+ };
+ };
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ function rethrowAssertionErrorRejection(e) {
+ if (e && e.constructor === AssertionError) {
+ setTimeout(function () {
+ throw e;
+ }, 0);
+ }
+ }
+ function AssertionError(message) {
+ this.name = 'AssertionError';
+ this.message = message || '';
+ this.stack = new Error().stack;
+ }
+ AssertionError.prototype = Object.create(Error.prototype);
+ AssertionError.prototype.constructor = AssertionError;
+ function assert(value, message) {
+ if (!value) {
+ throw new AssertionError(message);
+ }
+ }
+ module.exports = {
+ rethrowAssertionErrorRejection: rethrowAssertionErrorRejection,
+ AssertionError: AssertionError,
+ assert: assert
+ };
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var _createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+ function _classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ }
+ var _require = __w_pdfjs_require__(0),
+ InvokeOrNoop = _require.InvokeOrNoop,
+ PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
+ ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
+ typeIsObject = _require.typeIsObject;
+ var _require2 = __w_pdfjs_require__(1),
+ assert = _require2.assert,
+ rethrowAssertionErrorRejection = _require2.rethrowAssertionErrorRejection;
+ var _require3 = __w_pdfjs_require__(3),
+ DequeueValue = _require3.DequeueValue,
+ EnqueueValueWithSize = _require3.EnqueueValueWithSize,
+ PeekQueueValue = _require3.PeekQueueValue,
+ ResetQueue = _require3.ResetQueue;
+ var WritableStream = function () {
+ function WritableStream() {
+ var underlyingSink = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ size = _ref.size,
+ _ref$highWaterMark = _ref.highWaterMark,
+ highWaterMark = _ref$highWaterMark === undefined ? 1 : _ref$highWaterMark;
+ _classCallCheck(this, WritableStream);
+ this._state = 'writable';
+ this._storedError = undefined;
+ this._writer = undefined;
+ this._writableStreamController = undefined;
+ this._writeRequests = [];
+ this._inFlightWriteRequest = undefined;
+ this._closeRequest = undefined;
+ this._inFlightCloseRequest = undefined;
+ this._pendingAbortRequest = undefined;
+ this._backpressure = false;
+ var type = underlyingSink.type;
+ if (type !== undefined) {
+ throw new RangeError('Invalid type is specified');
+ }
+ this._writableStreamController = new WritableStreamDefaultController(this, underlyingSink, size, highWaterMark);
+ this._writableStreamController.__startSteps();
+ }
+ _createClass(WritableStream, [{
+ key: 'abort',
+ value: function abort(reason) {
+ if (IsWritableStream(this) === false) {
+ return Promise.reject(streamBrandCheckException('abort'));
+ }
+ if (IsWritableStreamLocked(this) === true) {
+ return Promise.reject(new TypeError('Cannot abort a stream that already has a writer'));
+ }
+ return WritableStreamAbort(this, reason);
+ }
+ }, {
+ key: 'getWriter',
+ value: function getWriter() {
+ if (IsWritableStream(this) === false) {
+ throw streamBrandCheckException('getWriter');
+ }
+ return AcquireWritableStreamDefaultWriter(this);
+ }
+ }, {
+ key: 'locked',
+ get: function get() {
+ if (IsWritableStream(this) === false) {
+ throw streamBrandCheckException('locked');
+ }
+ return IsWritableStreamLocked(this);
+ }
+ }]);
+ return WritableStream;
+ }();
+ module.exports = {
+ AcquireWritableStreamDefaultWriter: AcquireWritableStreamDefaultWriter,
+ IsWritableStream: IsWritableStream,
+ IsWritableStreamLocked: IsWritableStreamLocked,
+ WritableStream: WritableStream,
+ WritableStreamAbort: WritableStreamAbort,
+ WritableStreamDefaultControllerError: WritableStreamDefaultControllerError,
+ WritableStreamDefaultWriterCloseWithErrorPropagation: WritableStreamDefaultWriterCloseWithErrorPropagation,
+ WritableStreamDefaultWriterRelease: WritableStreamDefaultWriterRelease,
+ WritableStreamDefaultWriterWrite: WritableStreamDefaultWriterWrite,
+ WritableStreamCloseQueuedOrInFlight: WritableStreamCloseQueuedOrInFlight
+ };
+ function AcquireWritableStreamDefaultWriter(stream) {
+ return new WritableStreamDefaultWriter(stream);
+ }
+ function IsWritableStream(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_writableStreamController')) {
+ return false;
+ }
+ return true;
+ }
+ function IsWritableStreamLocked(stream) {
+ assert(IsWritableStream(stream) === true, 'IsWritableStreamLocked should only be used on known writable streams');
+ if (stream._writer === undefined) {
+ return false;
+ }
+ return true;
+ }
+ function WritableStreamAbort(stream, reason) {
+ var state = stream._state;
+ if (state === 'closed') {
+ return Promise.resolve(undefined);
+ }
+ if (state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ var error = new TypeError('Requested to abort');
+ if (stream._pendingAbortRequest !== undefined) {
+ return Promise.reject(error);
+ }
+ assert(state === 'writable' || state === 'erroring', 'state must be writable or erroring');
+ var wasAlreadyErroring = false;
+ if (state === 'erroring') {
+ wasAlreadyErroring = true;
+ reason = undefined;
+ }
+ var promise = new Promise(function (resolve, reject) {
+ stream._pendingAbortRequest = {
+ _resolve: resolve,
+ _reject: reject,
+ _reason: reason,
+ _wasAlreadyErroring: wasAlreadyErroring
+ };
+ });
+ if (wasAlreadyErroring === false) {
+ WritableStreamStartErroring(stream, error);
+ }
+ return promise;
+ }
+ function WritableStreamAddWriteRequest(stream) {
+ assert(IsWritableStreamLocked(stream) === true);
+ assert(stream._state === 'writable');
+ var promise = new Promise(function (resolve, reject) {
+ var writeRequest = {
+ _resolve: resolve,
+ _reject: reject
+ };
+ stream._writeRequests.push(writeRequest);
+ });
+ return promise;
+ }
+ function WritableStreamDealWithRejection(stream, error) {
+ var state = stream._state;
+ if (state === 'writable') {
+ WritableStreamStartErroring(stream, error);
+ return;
+ }
+ assert(state === 'erroring');
+ WritableStreamFinishErroring(stream);
+ }
+ function WritableStreamStartErroring(stream, reason) {
+ assert(stream._storedError === undefined, 'stream._storedError === undefined');
+ assert(stream._state === 'writable', 'state must be writable');
+ var controller = stream._writableStreamController;
+ assert(controller !== undefined, 'controller must not be undefined');
+ stream._state = 'erroring';
+ stream._storedError = reason;
+ var writer = stream._writer;
+ if (writer !== undefined) {
+ WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);
+ }
+ if (WritableStreamHasOperationMarkedInFlight(stream) === false && controller._started === true) {
+ WritableStreamFinishErroring(stream);
+ }
+ }
+ function WritableStreamFinishErroring(stream) {
+ assert(stream._state === 'erroring', 'stream._state === erroring');
+ assert(WritableStreamHasOperationMarkedInFlight(stream) === false, 'WritableStreamHasOperationMarkedInFlight(stream) === false');
+ stream._state = 'errored';
+ stream._writableStreamController.__errorSteps();
+ var storedError = stream._storedError;
+ for (var i = 0; i < stream._writeRequests.length; i++) {
+ var writeRequest = stream._writeRequests[i];
+ writeRequest._reject(storedError);
+ }
+ stream._writeRequests = [];
+ if (stream._pendingAbortRequest === undefined) {
+ WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
+ return;
+ }
+ var abortRequest = stream._pendingAbortRequest;
+ stream._pendingAbortRequest = undefined;
+ if (abortRequest._wasAlreadyErroring === true) {
+ abortRequest._reject(storedError);
+ WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
+ return;
+ }
+ var promise = stream._writableStreamController.__abortSteps(abortRequest._reason);
+ promise.then(function () {
+ abortRequest._resolve();
+ WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
+ }, function (reason) {
+ abortRequest._reject(reason);
+ WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
+ });
+ }
+ function WritableStreamFinishInFlightWrite(stream) {
+ assert(stream._inFlightWriteRequest !== undefined);
+ stream._inFlightWriteRequest._resolve(undefined);
+ stream._inFlightWriteRequest = undefined;
+ }
+ function WritableStreamFinishInFlightWriteWithError(stream, error) {
+ assert(stream._inFlightWriteRequest !== undefined);
+ stream._inFlightWriteRequest._reject(error);
+ stream._inFlightWriteRequest = undefined;
+ assert(stream._state === 'writable' || stream._state === 'erroring');
+ WritableStreamDealWithRejection(stream, error);
+ }
+ function WritableStreamFinishInFlightClose(stream) {
+ assert(stream._inFlightCloseRequest !== undefined);
+ stream._inFlightCloseRequest._resolve(undefined);
+ stream._inFlightCloseRequest = undefined;
+ var state = stream._state;
+ assert(state === 'writable' || state === 'erroring');
+ if (state === 'erroring') {
+ stream._storedError = undefined;
+ if (stream._pendingAbortRequest !== undefined) {
+ stream._pendingAbortRequest._resolve();
+ stream._pendingAbortRequest = undefined;
+ }
+ }
+ stream._state = 'closed';
+ var writer = stream._writer;
+ if (writer !== undefined) {
+ defaultWriterClosedPromiseResolve(writer);
+ }
+ assert(stream._pendingAbortRequest === undefined, 'stream._pendingAbortRequest === undefined');
+ assert(stream._storedError === undefined, 'stream._storedError === undefined');
+ }
+ function WritableStreamFinishInFlightCloseWithError(stream, error) {
+ assert(stream._inFlightCloseRequest !== undefined);
+ stream._inFlightCloseRequest._reject(error);
+ stream._inFlightCloseRequest = undefined;
+ assert(stream._state === 'writable' || stream._state === 'erroring');
+ if (stream._pendingAbortRequest !== undefined) {
+ stream._pendingAbortRequest._reject(error);
+ stream._pendingAbortRequest = undefined;
+ }
+ WritableStreamDealWithRejection(stream, error);
+ }
+ function WritableStreamCloseQueuedOrInFlight(stream) {
+ if (stream._closeRequest === undefined && stream._inFlightCloseRequest === undefined) {
+ return false;
+ }
+ return true;
+ }
+ function WritableStreamHasOperationMarkedInFlight(stream) {
+ if (stream._inFlightWriteRequest === undefined && stream._inFlightCloseRequest === undefined) {
+ return false;
+ }
+ return true;
+ }
+ function WritableStreamMarkCloseRequestInFlight(stream) {
+ assert(stream._inFlightCloseRequest === undefined);
+ assert(stream._closeRequest !== undefined);
+ stream._inFlightCloseRequest = stream._closeRequest;
+ stream._closeRequest = undefined;
+ }
+ function WritableStreamMarkFirstWriteRequestInFlight(stream) {
+ assert(stream._inFlightWriteRequest === undefined, 'there must be no pending write request');
+ assert(stream._writeRequests.length !== 0, 'writeRequests must not be empty');
+ stream._inFlightWriteRequest = stream._writeRequests.shift();
+ }
+ function WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {
+ assert(stream._state === 'errored', '_stream_.[[state]] is `"errored"`');
+ if (stream._closeRequest !== undefined) {
+ assert(stream._inFlightCloseRequest === undefined);
+ stream._closeRequest._reject(stream._storedError);
+ stream._closeRequest = undefined;
+ }
+ var writer = stream._writer;
+ if (writer !== undefined) {
+ defaultWriterClosedPromiseReject(writer, stream._storedError);
+ writer._closedPromise.catch(function () {});
+ }
+ }
+ function WritableStreamUpdateBackpressure(stream, backpressure) {
+ assert(stream._state === 'writable');
+ assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
+ var writer = stream._writer;
+ if (writer !== undefined && backpressure !== stream._backpressure) {
+ if (backpressure === true) {
+ defaultWriterReadyPromiseReset(writer);
+ } else {
+ assert(backpressure === false);
+ defaultWriterReadyPromiseResolve(writer);
+ }
+ }
+ stream._backpressure = backpressure;
+ }
+ var WritableStreamDefaultWriter = function () {
+ function WritableStreamDefaultWriter(stream) {
+ _classCallCheck(this, WritableStreamDefaultWriter);
+ if (IsWritableStream(stream) === false) {
+ throw new TypeError('WritableStreamDefaultWriter can only be constructed with a WritableStream instance');
+ }
+ if (IsWritableStreamLocked(stream) === true) {
+ throw new TypeError('This stream has already been locked for exclusive writing by another writer');
+ }
+ this._ownerWritableStream = stream;
+ stream._writer = this;
+ var state = stream._state;
+ if (state === 'writable') {
+ if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._backpressure === true) {
+ defaultWriterReadyPromiseInitialize(this);
+ } else {
+ defaultWriterReadyPromiseInitializeAsResolved(this);
+ }
+ defaultWriterClosedPromiseInitialize(this);
+ } else if (state === 'erroring') {
+ defaultWriterReadyPromiseInitializeAsRejected(this, stream._storedError);
+ this._readyPromise.catch(function () {});
+ defaultWriterClosedPromiseInitialize(this);
+ } else if (state === 'closed') {
+ defaultWriterReadyPromiseInitializeAsResolved(this);
+ defaultWriterClosedPromiseInitializeAsResolved(this);
+ } else {
+ assert(state === 'errored', 'state must be errored');
+ var storedError = stream._storedError;
+ defaultWriterReadyPromiseInitializeAsRejected(this, storedError);
+ this._readyPromise.catch(function () {});
+ defaultWriterClosedPromiseInitializeAsRejected(this, storedError);
+ this._closedPromise.catch(function () {});
+ }
+ }
+ _createClass(WritableStreamDefaultWriter, [{
+ key: 'abort',
+ value: function abort(reason) {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ return Promise.reject(defaultWriterBrandCheckException('abort'));
+ }
+ if (this._ownerWritableStream === undefined) {
+ return Promise.reject(defaultWriterLockException('abort'));
+ }
+ return WritableStreamDefaultWriterAbort(this, reason);
+ }
+ }, {
+ key: 'close',
+ value: function close() {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ return Promise.reject(defaultWriterBrandCheckException('close'));
+ }
+ var stream = this._ownerWritableStream;
+ if (stream === undefined) {
+ return Promise.reject(defaultWriterLockException('close'));
+ }
+ if (WritableStreamCloseQueuedOrInFlight(stream) === true) {
+ return Promise.reject(new TypeError('cannot close an already-closing stream'));
+ }
+ return WritableStreamDefaultWriterClose(this);
+ }
+ }, {
+ key: 'releaseLock',
+ value: function releaseLock() {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ throw defaultWriterBrandCheckException('releaseLock');
+ }
+ var stream = this._ownerWritableStream;
+ if (stream === undefined) {
+ return;
+ }
+ assert(stream._writer !== undefined);
+ WritableStreamDefaultWriterRelease(this);
+ }
+ }, {
+ key: 'write',
+ value: function write(chunk) {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ return Promise.reject(defaultWriterBrandCheckException('write'));
+ }
+ if (this._ownerWritableStream === undefined) {
+ return Promise.reject(defaultWriterLockException('write to'));
+ }
+ return WritableStreamDefaultWriterWrite(this, chunk);
+ }
+ }, {
+ key: 'closed',
+ get: function get() {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ return Promise.reject(defaultWriterBrandCheckException('closed'));
+ }
+ return this._closedPromise;
+ }
+ }, {
+ key: 'desiredSize',
+ get: function get() {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ throw defaultWriterBrandCheckException('desiredSize');
+ }
+ if (this._ownerWritableStream === undefined) {
+ throw defaultWriterLockException('desiredSize');
+ }
+ return WritableStreamDefaultWriterGetDesiredSize(this);
+ }
+ }, {
+ key: 'ready',
+ get: function get() {
+ if (IsWritableStreamDefaultWriter(this) === false) {
+ return Promise.reject(defaultWriterBrandCheckException('ready'));
+ }
+ return this._readyPromise;
+ }
+ }]);
+ return WritableStreamDefaultWriter;
+ }();
+ function IsWritableStreamDefaultWriter(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_ownerWritableStream')) {
+ return false;
+ }
+ return true;
+ }
+ function WritableStreamDefaultWriterAbort(writer, reason) {
+ var stream = writer._ownerWritableStream;
+ assert(stream !== undefined);
+ return WritableStreamAbort(stream, reason);
+ }
+ function WritableStreamDefaultWriterClose(writer) {
+ var stream = writer._ownerWritableStream;
+ assert(stream !== undefined);
+ var state = stream._state;
+ if (state === 'closed' || state === 'errored') {
+ return Promise.reject(new TypeError('The stream (in ' + state + ' state) is not in the writable state and cannot be closed'));
+ }
+ assert(state === 'writable' || state === 'erroring');
+ assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
+ var promise = new Promise(function (resolve, reject) {
+ var closeRequest = {
+ _resolve: resolve,
+ _reject: reject
+ };
+ stream._closeRequest = closeRequest;
+ });
+ if (stream._backpressure === true && state === 'writable') {
+ defaultWriterReadyPromiseResolve(writer);
+ }
+ WritableStreamDefaultControllerClose(stream._writableStreamController);
+ return promise;
+ }
+ function WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {
+ var stream = writer._ownerWritableStream;
+ assert(stream !== undefined);
+ var state = stream._state;
+ if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
+ return Promise.resolve();
+ }
+ if (state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ assert(state === 'writable' || state === 'erroring');
+ return WritableStreamDefaultWriterClose(writer);
+ }
+ function WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, error) {
+ if (writer._closedPromiseState === 'pending') {
+ defaultWriterClosedPromiseReject(writer, error);
+ } else {
+ defaultWriterClosedPromiseResetToRejected(writer, error);
+ }
+ writer._closedPromise.catch(function () {});
+ }
+ function WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, error) {
+ if (writer._readyPromiseState === 'pending') {
+ defaultWriterReadyPromiseReject(writer, error);
+ } else {
+ defaultWriterReadyPromiseResetToRejected(writer, error);
+ }
+ writer._readyPromise.catch(function () {});
+ }
+ function WritableStreamDefaultWriterGetDesiredSize(writer) {
+ var stream = writer._ownerWritableStream;
+ var state = stream._state;
+ if (state === 'errored' || state === 'erroring') {
+ return null;
+ }
+ if (state === 'closed') {
+ return 0;
+ }
+ return WritableStreamDefaultControllerGetDesiredSize(stream._writableStreamController);
+ }
+ function WritableStreamDefaultWriterRelease(writer) {
+ var stream = writer._ownerWritableStream;
+ assert(stream !== undefined);
+ assert(stream._writer === writer);
+ var releasedError = new TypeError('Writer was released and can no longer be used to monitor the stream\'s closedness');
+ WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);
+ WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);
+ stream._writer = undefined;
+ writer._ownerWritableStream = undefined;
+ }
+ function WritableStreamDefaultWriterWrite(writer, chunk) {
+ var stream = writer._ownerWritableStream;
+ assert(stream !== undefined);
+ var controller = stream._writableStreamController;
+ var chunkSize = WritableStreamDefaultControllerGetChunkSize(controller, chunk);
+ if (stream !== writer._ownerWritableStream) {
+ return Promise.reject(defaultWriterLockException('write to'));
+ }
+ var state = stream._state;
+ if (state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
+ return Promise.reject(new TypeError('The stream is closing or closed and cannot be written to'));
+ }
+ if (state === 'erroring') {
+ return Promise.reject(stream._storedError);
+ }
+ assert(state === 'writable');
+ var promise = WritableStreamAddWriteRequest(stream);
+ WritableStreamDefaultControllerWrite(controller, chunk, chunkSize);
+ return promise;
+ }
+ var WritableStreamDefaultController = function () {
+ function WritableStreamDefaultController(stream, underlyingSink, size, highWaterMark) {
+ _classCallCheck(this, WritableStreamDefaultController);
+ if (IsWritableStream(stream) === false) {
+ throw new TypeError('WritableStreamDefaultController can only be constructed with a WritableStream instance');
+ }
+ if (stream._writableStreamController !== undefined) {
+ throw new TypeError('WritableStreamDefaultController instances can only be created by the WritableStream constructor');
+ }
+ this._controlledWritableStream = stream;
+ this._underlyingSink = underlyingSink;
+ this._queue = undefined;
+ this._queueTotalSize = undefined;
+ ResetQueue(this);
+ this._started = false;
+ var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
+ this._strategySize = normalizedStrategy.size;
+ this._strategyHWM = normalizedStrategy.highWaterMark;
+ var backpressure = WritableStreamDefaultControllerGetBackpressure(this);
+ WritableStreamUpdateBackpressure(stream, backpressure);
+ }
+ _createClass(WritableStreamDefaultController, [{
+ key: 'error',
+ value: function error(e) {
+ if (IsWritableStreamDefaultController(this) === false) {
+ throw new TypeError('WritableStreamDefaultController.prototype.error can only be used on a WritableStreamDefaultController');
+ }
+ var state = this._controlledWritableStream._state;
+ if (state !== 'writable') {
+ return;
+ }
+ WritableStreamDefaultControllerError(this, e);
+ }
+ }, {
+ key: '__abortSteps',
+ value: function __abortSteps(reason) {
+ return PromiseInvokeOrNoop(this._underlyingSink, 'abort', [reason]);
+ }
+ }, {
+ key: '__errorSteps',
+ value: function __errorSteps() {
+ ResetQueue(this);
+ }
+ }, {
+ key: '__startSteps',
+ value: function __startSteps() {
+ var _this = this;
+ var startResult = InvokeOrNoop(this._underlyingSink, 'start', [this]);
+ var stream = this._controlledWritableStream;
+ Promise.resolve(startResult).then(function () {
+ assert(stream._state === 'writable' || stream._state === 'erroring');
+ _this._started = true;
+ WritableStreamDefaultControllerAdvanceQueueIfNeeded(_this);
+ }, function (r) {
+ assert(stream._state === 'writable' || stream._state === 'erroring');
+ _this._started = true;
+ WritableStreamDealWithRejection(stream, r);
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ }]);
+ return WritableStreamDefaultController;
+ }();
+ function WritableStreamDefaultControllerClose(controller) {
+ EnqueueValueWithSize(controller, 'close', 0);
+ WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
+ }
+ function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {
+ var strategySize = controller._strategySize;
+ if (strategySize === undefined) {
+ return 1;
+ }
+ try {
+ return strategySize(chunk);
+ } catch (chunkSizeE) {
+ WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
+ return 1;
+ }
+ }
+ function WritableStreamDefaultControllerGetDesiredSize(controller) {
+ return controller._strategyHWM - controller._queueTotalSize;
+ }
+ function WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {
+ var writeRecord = { chunk: chunk };
+ try {
+ EnqueueValueWithSize(controller, writeRecord, chunkSize);
+ } catch (enqueueE) {
+ WritableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
+ return;
+ }
+ var stream = controller._controlledWritableStream;
+ if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._state === 'writable') {
+ var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
+ WritableStreamUpdateBackpressure(stream, backpressure);
+ }
+ WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
+ }
+ function IsWritableStreamDefaultController(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSink')) {
+ return false;
+ }
+ return true;
+ }
+ function WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {
+ var stream = controller._controlledWritableStream;
+ if (controller._started === false) {
+ return;
+ }
+ if (stream._inFlightWriteRequest !== undefined) {
+ return;
+ }
+ var state = stream._state;
+ if (state === 'closed' || state === 'errored') {
+ return;
+ }
+ if (state === 'erroring') {
+ WritableStreamFinishErroring(stream);
+ return;
+ }
+ if (controller._queue.length === 0) {
+ return;
+ }
+ var writeRecord = PeekQueueValue(controller);
+ if (writeRecord === 'close') {
+ WritableStreamDefaultControllerProcessClose(controller);
+ } else {
+ WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);
+ }
+ }
+ function WritableStreamDefaultControllerErrorIfNeeded(controller, error) {
+ if (controller._controlledWritableStream._state === 'writable') {
+ WritableStreamDefaultControllerError(controller, error);
+ }
+ }
+ function WritableStreamDefaultControllerProcessClose(controller) {
+ var stream = controller._controlledWritableStream;
+ WritableStreamMarkCloseRequestInFlight(stream);
+ DequeueValue(controller);
+ assert(controller._queue.length === 0, 'queue must be empty once the final write record is dequeued');
+ var sinkClosePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'close', []);
+ sinkClosePromise.then(function () {
+ WritableStreamFinishInFlightClose(stream);
+ }, function (reason) {
+ WritableStreamFinishInFlightCloseWithError(stream, reason);
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ function WritableStreamDefaultControllerProcessWrite(controller, chunk) {
+ var stream = controller._controlledWritableStream;
+ WritableStreamMarkFirstWriteRequestInFlight(stream);
+ var sinkWritePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'write', [chunk, controller]);
+ sinkWritePromise.then(function () {
+ WritableStreamFinishInFlightWrite(stream);
+ var state = stream._state;
+ assert(state === 'writable' || state === 'erroring');
+ DequeueValue(controller);
+ if (WritableStreamCloseQueuedOrInFlight(stream) === false && state === 'writable') {
+ var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
+ WritableStreamUpdateBackpressure(stream, backpressure);
+ }
+ WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
+ }, function (reason) {
+ WritableStreamFinishInFlightWriteWithError(stream, reason);
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ function WritableStreamDefaultControllerGetBackpressure(controller) {
+ var desiredSize = WritableStreamDefaultControllerGetDesiredSize(controller);
+ return desiredSize <= 0;
+ }
+ function WritableStreamDefaultControllerError(controller, error) {
+ var stream = controller._controlledWritableStream;
+ assert(stream._state === 'writable');
+ WritableStreamStartErroring(stream, error);
+ }
+ function streamBrandCheckException(name) {
+ return new TypeError('WritableStream.prototype.' + name + ' can only be used on a WritableStream');
+ }
+ function defaultWriterBrandCheckException(name) {
+ return new TypeError('WritableStreamDefaultWriter.prototype.' + name + ' can only be used on a WritableStreamDefaultWriter');
+ }
+ function defaultWriterLockException(name) {
+ return new TypeError('Cannot ' + name + ' a stream using a released writer');
+ }
+ function defaultWriterClosedPromiseInitialize(writer) {
+ writer._closedPromise = new Promise(function (resolve, reject) {
+ writer._closedPromise_resolve = resolve;
+ writer._closedPromise_reject = reject;
+ writer._closedPromiseState = 'pending';
+ });
+ }
+ function defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {
+ writer._closedPromise = Promise.reject(reason);
+ writer._closedPromise_resolve = undefined;
+ writer._closedPromise_reject = undefined;
+ writer._closedPromiseState = 'rejected';
+ }
+ function defaultWriterClosedPromiseInitializeAsResolved(writer) {
+ writer._closedPromise = Promise.resolve(undefined);
+ writer._closedPromise_resolve = undefined;
+ writer._closedPromise_reject = undefined;
+ writer._closedPromiseState = 'resolved';
+ }
+ function defaultWriterClosedPromiseReject(writer, reason) {
+ assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
+ assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
+ assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');
+ writer._closedPromise_reject(reason);
+ writer._closedPromise_resolve = undefined;
+ writer._closedPromise_reject = undefined;
+ writer._closedPromiseState = 'rejected';
+ }
+ function defaultWriterClosedPromiseResetToRejected(writer, reason) {
+ assert(writer._closedPromise_resolve === undefined, 'writer._closedPromise_resolve === undefined');
+ assert(writer._closedPromise_reject === undefined, 'writer._closedPromise_reject === undefined');
+ assert(writer._closedPromiseState !== 'pending', 'writer._closedPromiseState is not pending');
+ writer._closedPromise = Promise.reject(reason);
+ writer._closedPromiseState = 'rejected';
+ }
+ function defaultWriterClosedPromiseResolve(writer) {
+ assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
+ assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
+ assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');
+ writer._closedPromise_resolve(undefined);
+ writer._closedPromise_resolve = undefined;
+ writer._closedPromise_reject = undefined;
+ writer._closedPromiseState = 'resolved';
+ }
+ function defaultWriterReadyPromiseInitialize(writer) {
+ writer._readyPromise = new Promise(function (resolve, reject) {
+ writer._readyPromise_resolve = resolve;
+ writer._readyPromise_reject = reject;
+ });
+ writer._readyPromiseState = 'pending';
+ }
+ function defaultWriterReadyPromiseInitializeAsRejected(writer, reason) {
+ writer._readyPromise = Promise.reject(reason);
+ writer._readyPromise_resolve = undefined;
+ writer._readyPromise_reject = undefined;
+ writer._readyPromiseState = 'rejected';
+ }
+ function defaultWriterReadyPromiseInitializeAsResolved(writer) {
+ writer._readyPromise = Promise.resolve(undefined);
+ writer._readyPromise_resolve = undefined;
+ writer._readyPromise_reject = undefined;
+ writer._readyPromiseState = 'fulfilled';
+ }
+ function defaultWriterReadyPromiseReject(writer, reason) {
+ assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
+ assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');
+ writer._readyPromise_reject(reason);
+ writer._readyPromise_resolve = undefined;
+ writer._readyPromise_reject = undefined;
+ writer._readyPromiseState = 'rejected';
+ }
+ function defaultWriterReadyPromiseReset(writer) {
+ assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
+ assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
+ writer._readyPromise = new Promise(function (resolve, reject) {
+ writer._readyPromise_resolve = resolve;
+ writer._readyPromise_reject = reject;
+ });
+ writer._readyPromiseState = 'pending';
+ }
+ function defaultWriterReadyPromiseResetToRejected(writer, reason) {
+ assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
+ assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
+ writer._readyPromise = Promise.reject(reason);
+ writer._readyPromiseState = 'rejected';
+ }
+ function defaultWriterReadyPromiseResolve(writer) {
+ assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
+ assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');
+ writer._readyPromise_resolve(undefined);
+ writer._readyPromise_resolve = undefined;
+ writer._readyPromise_reject = undefined;
+ writer._readyPromiseState = 'fulfilled';
+ }
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var _require = __w_pdfjs_require__(0),
+ IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber;
+ var _require2 = __w_pdfjs_require__(1),
+ assert = _require2.assert;
+ exports.DequeueValue = function (container) {
+ assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: DequeueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
+ assert(container._queue.length > 0, 'Spec-level failure: should never dequeue from an empty queue.');
+ var pair = container._queue.shift();
+ container._queueTotalSize -= pair.size;
+ if (container._queueTotalSize < 0) {
+ container._queueTotalSize = 0;
+ }
+ return pair.value;
+ };
+ exports.EnqueueValueWithSize = function (container, value, size) {
+ assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: EnqueueValueWithSize should only be used on containers with [[queue]] and ' + '[[queueTotalSize]].');
+ size = Number(size);
+ if (!IsFiniteNonNegativeNumber(size)) {
+ throw new RangeError('Size must be a finite, non-NaN, non-negative number.');
+ }
+ container._queue.push({
+ value: value,
+ size: size
+ });
+ container._queueTotalSize += size;
+ };
+ exports.PeekQueueValue = function (container) {
+ assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: PeekQueueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
+ assert(container._queue.length > 0, 'Spec-level failure: should never peek at an empty queue.');
+ var pair = container._queue[0];
+ return pair.value;
+ };
+ exports.ResetQueue = function (container) {
+ assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: ResetQueue should only be used on containers with [[queue]] and [[queueTotalSize]].');
+ container._queue = [];
+ container._queueTotalSize = 0;
+ };
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var _createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+ function _classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ }
+ var _require = __w_pdfjs_require__(0),
+ ArrayBufferCopy = _require.ArrayBufferCopy,
+ CreateIterResultObject = _require.CreateIterResultObject,
+ IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber,
+ InvokeOrNoop = _require.InvokeOrNoop,
+ PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
+ TransferArrayBuffer = _require.TransferArrayBuffer,
+ ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
+ ValidateAndNormalizeHighWaterMark = _require.ValidateAndNormalizeHighWaterMark;
+ var _require2 = __w_pdfjs_require__(0),
+ createArrayFromList = _require2.createArrayFromList,
+ createDataProperty = _require2.createDataProperty,
+ typeIsObject = _require2.typeIsObject;
+ var _require3 = __w_pdfjs_require__(1),
+ assert = _require3.assert,
+ rethrowAssertionErrorRejection = _require3.rethrowAssertionErrorRejection;
+ var _require4 = __w_pdfjs_require__(3),
+ DequeueValue = _require4.DequeueValue,
+ EnqueueValueWithSize = _require4.EnqueueValueWithSize,
+ ResetQueue = _require4.ResetQueue;
+ var _require5 = __w_pdfjs_require__(2),
+ AcquireWritableStreamDefaultWriter = _require5.AcquireWritableStreamDefaultWriter,
+ IsWritableStream = _require5.IsWritableStream,
+ IsWritableStreamLocked = _require5.IsWritableStreamLocked,
+ WritableStreamAbort = _require5.WritableStreamAbort,
+ WritableStreamDefaultWriterCloseWithErrorPropagation = _require5.WritableStreamDefaultWriterCloseWithErrorPropagation,
+ WritableStreamDefaultWriterRelease = _require5.WritableStreamDefaultWriterRelease,
+ WritableStreamDefaultWriterWrite = _require5.WritableStreamDefaultWriterWrite,
+ WritableStreamCloseQueuedOrInFlight = _require5.WritableStreamCloseQueuedOrInFlight;
+ var ReadableStream = function () {
+ function ReadableStream() {
+ var underlyingSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ size = _ref.size,
+ highWaterMark = _ref.highWaterMark;
+ _classCallCheck(this, ReadableStream);
+ this._state = 'readable';
+ this._reader = undefined;
+ this._storedError = undefined;
+ this._disturbed = false;
+ this._readableStreamController = undefined;
+ var type = underlyingSource.type;
+ var typeString = String(type);
+ if (typeString === 'bytes') {
+ if (highWaterMark === undefined) {
+ highWaterMark = 0;
+ }
+ this._readableStreamController = new ReadableByteStreamController(this, underlyingSource, highWaterMark);
+ } else if (type === undefined) {
+ if (highWaterMark === undefined) {
+ highWaterMark = 1;
+ }
+ this._readableStreamController = new ReadableStreamDefaultController(this, underlyingSource, size, highWaterMark);
+ } else {
+ throw new RangeError('Invalid type is specified');
+ }
+ }
+ _createClass(ReadableStream, [{
+ key: 'cancel',
+ value: function cancel(reason) {
+ if (IsReadableStream(this) === false) {
+ return Promise.reject(streamBrandCheckException('cancel'));
+ }
+ if (IsReadableStreamLocked(this) === true) {
+ return Promise.reject(new TypeError('Cannot cancel a stream that already has a reader'));
+ }
+ return ReadableStreamCancel(this, reason);
+ }
+ }, {
+ key: 'getReader',
+ value: function getReader() {
+ var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
+ mode = _ref2.mode;
+ if (IsReadableStream(this) === false) {
+ throw streamBrandCheckException('getReader');
+ }
+ if (mode === undefined) {
+ return AcquireReadableStreamDefaultReader(this);
+ }
+ mode = String(mode);
+ if (mode === 'byob') {
+ return AcquireReadableStreamBYOBReader(this);
+ }
+ throw new RangeError('Invalid mode is specified');
+ }
+ }, {
+ key: 'pipeThrough',
+ value: function pipeThrough(_ref3, options) {
+ var writable = _ref3.writable,
+ readable = _ref3.readable;
+ var promise = this.pipeTo(writable, options);
+ ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise);
+ return readable;
+ }
+ }, {
+ key: 'pipeTo',
+ value: function pipeTo(dest) {
+ var _this = this;
+ var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ preventClose = _ref4.preventClose,
+ preventAbort = _ref4.preventAbort,
+ preventCancel = _ref4.preventCancel;
+ if (IsReadableStream(this) === false) {
+ return Promise.reject(streamBrandCheckException('pipeTo'));
+ }
+ if (IsWritableStream(dest) === false) {
+ return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo\'s first argument must be a WritableStream'));
+ }
+ preventClose = Boolean(preventClose);
+ preventAbort = Boolean(preventAbort);
+ preventCancel = Boolean(preventCancel);
+ if (IsReadableStreamLocked(this) === true) {
+ return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked ReadableStream'));
+ }
+ if (IsWritableStreamLocked(dest) === true) {
+ return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked WritableStream'));
+ }
+ var reader = AcquireReadableStreamDefaultReader(this);
+ var writer = AcquireWritableStreamDefaultWriter(dest);
+ var shuttingDown = false;
+ var currentWrite = Promise.resolve();
+ return new Promise(function (resolve, reject) {
+ function pipeLoop() {
+ currentWrite = Promise.resolve();
+ if (shuttingDown === true) {
+ return Promise.resolve();
+ }
+ return writer._readyPromise.then(function () {
+ return ReadableStreamDefaultReaderRead(reader).then(function (_ref5) {
+ var value = _ref5.value,
+ done = _ref5.done;
+ if (done === true) {
+ return;
+ }
+ currentWrite = WritableStreamDefaultWriterWrite(writer, value).catch(function () {});
+ });
+ }).then(pipeLoop);
+ }
+ isOrBecomesErrored(_this, reader._closedPromise, function (storedError) {
+ if (preventAbort === false) {
+ shutdownWithAction(function () {
+ return WritableStreamAbort(dest, storedError);
+ }, true, storedError);
+ } else {
+ shutdown(true, storedError);
+ }
+ });
+ isOrBecomesErrored(dest, writer._closedPromise, function (storedError) {
+ if (preventCancel === false) {
+ shutdownWithAction(function () {
+ return ReadableStreamCancel(_this, storedError);
+ }, true, storedError);
+ } else {
+ shutdown(true, storedError);
+ }
+ });
+ isOrBecomesClosed(_this, reader._closedPromise, function () {
+ if (preventClose === false) {
+ shutdownWithAction(function () {
+ return WritableStreamDefaultWriterCloseWithErrorPropagation(writer);
+ });
+ } else {
+ shutdown();
+ }
+ });
+ if (WritableStreamCloseQueuedOrInFlight(dest) === true || dest._state === 'closed') {
+ var destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');
+ if (preventCancel === false) {
+ shutdownWithAction(function () {
+ return ReadableStreamCancel(_this, destClosed);
+ }, true, destClosed);
+ } else {
+ shutdown(true, destClosed);
+ }
+ }
+ pipeLoop().catch(function (err) {
+ currentWrite = Promise.resolve();
+ rethrowAssertionErrorRejection(err);
+ });
+ function waitForWritesToFinish() {
+ var oldCurrentWrite = currentWrite;
+ return currentWrite.then(function () {
+ return oldCurrentWrite !== currentWrite ? waitForWritesToFinish() : undefined;
+ });
+ }
+ function isOrBecomesErrored(stream, promise, action) {
+ if (stream._state === 'errored') {
+ action(stream._storedError);
+ } else {
+ promise.catch(action).catch(rethrowAssertionErrorRejection);
+ }
+ }
+ function isOrBecomesClosed(stream, promise, action) {
+ if (stream._state === 'closed') {
+ action();
+ } else {
+ promise.then(action).catch(rethrowAssertionErrorRejection);
+ }
+ }
+ function shutdownWithAction(action, originalIsError, originalError) {
+ if (shuttingDown === true) {
+ return;
+ }
+ shuttingDown = true;
+ if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
+ waitForWritesToFinish().then(doTheRest);
+ } else {
+ doTheRest();
+ }
+ function doTheRest() {
+ action().then(function () {
+ return finalize(originalIsError, originalError);
+ }, function (newError) {
+ return finalize(true, newError);
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ }
+ function shutdown(isError, error) {
+ if (shuttingDown === true) {
+ return;
+ }
+ shuttingDown = true;
+ if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
+ waitForWritesToFinish().then(function () {
+ return finalize(isError, error);
+ }).catch(rethrowAssertionErrorRejection);
+ } else {
+ finalize(isError, error);
+ }
+ }
+ function finalize(isError, error) {
+ WritableStreamDefaultWriterRelease(writer);
+ ReadableStreamReaderGenericRelease(reader);
+ if (isError) {
+ reject(error);
+ } else {
+ resolve(undefined);
+ }
+ }
+ });
+ }
+ }, {
+ key: 'tee',
+ value: function tee() {
+ if (IsReadableStream(this) === false) {
+ throw streamBrandCheckException('tee');
+ }
+ var branches = ReadableStreamTee(this, false);
+ return createArrayFromList(branches);
+ }
+ }, {
+ key: 'locked',
+ get: function get() {
+ if (IsReadableStream(this) === false) {
+ throw streamBrandCheckException('locked');
+ }
+ return IsReadableStreamLocked(this);
+ }
+ }]);
+ return ReadableStream;
+ }();
+ module.exports = {
+ ReadableStream: ReadableStream,
+ IsReadableStreamDisturbed: IsReadableStreamDisturbed,
+ ReadableStreamDefaultControllerClose: ReadableStreamDefaultControllerClose,
+ ReadableStreamDefaultControllerEnqueue: ReadableStreamDefaultControllerEnqueue,
+ ReadableStreamDefaultControllerError: ReadableStreamDefaultControllerError,
+ ReadableStreamDefaultControllerGetDesiredSize: ReadableStreamDefaultControllerGetDesiredSize
+ };
+ function AcquireReadableStreamBYOBReader(stream) {
+ return new ReadableStreamBYOBReader(stream);
+ }
+ function AcquireReadableStreamDefaultReader(stream) {
+ return new ReadableStreamDefaultReader(stream);
+ }
+ function IsReadableStream(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_readableStreamController')) {
+ return false;
+ }
+ return true;
+ }
+ function IsReadableStreamDisturbed(stream) {
+ assert(IsReadableStream(stream) === true, 'IsReadableStreamDisturbed should only be used on known readable streams');
+ return stream._disturbed;
+ }
+ function IsReadableStreamLocked(stream) {
+ assert(IsReadableStream(stream) === true, 'IsReadableStreamLocked should only be used on known readable streams');
+ if (stream._reader === undefined) {
+ return false;
+ }
+ return true;
+ }
+ function ReadableStreamTee(stream, cloneForBranch2) {
+ assert(IsReadableStream(stream) === true);
+ assert(typeof cloneForBranch2 === 'boolean');
+ var reader = AcquireReadableStreamDefaultReader(stream);
+ var teeState = {
+ closedOrErrored: false,
+ canceled1: false,
+ canceled2: false,
+ reason1: undefined,
+ reason2: undefined
+ };
+ teeState.promise = new Promise(function (resolve) {
+ teeState._resolve = resolve;
+ });
+ var pull = create_ReadableStreamTeePullFunction();
+ pull._reader = reader;
+ pull._teeState = teeState;
+ pull._cloneForBranch2 = cloneForBranch2;
+ var cancel1 = create_ReadableStreamTeeBranch1CancelFunction();
+ cancel1._stream = stream;
+ cancel1._teeState = teeState;
+ var cancel2 = create_ReadableStreamTeeBranch2CancelFunction();
+ cancel2._stream = stream;
+ cancel2._teeState = teeState;
+ var underlyingSource1 = Object.create(Object.prototype);
+ createDataProperty(underlyingSource1, 'pull', pull);
+ createDataProperty(underlyingSource1, 'cancel', cancel1);
+ var branch1Stream = new ReadableStream(underlyingSource1);
+ var underlyingSource2 = Object.create(Object.prototype);
+ createDataProperty(underlyingSource2, 'pull', pull);
+ createDataProperty(underlyingSource2, 'cancel', cancel2);
+ var branch2Stream = new ReadableStream(underlyingSource2);
+ pull._branch1 = branch1Stream._readableStreamController;
+ pull._branch2 = branch2Stream._readableStreamController;
+ reader._closedPromise.catch(function (r) {
+ if (teeState.closedOrErrored === true) {
+ return;
+ }
+ ReadableStreamDefaultControllerError(pull._branch1, r);
+ ReadableStreamDefaultControllerError(pull._branch2, r);
+ teeState.closedOrErrored = true;
+ });
+ return [branch1Stream, branch2Stream];
+ }
+ function create_ReadableStreamTeePullFunction() {
+ function f() {
+ var reader = f._reader,
+ branch1 = f._branch1,
+ branch2 = f._branch2,
+ teeState = f._teeState;
+ return ReadableStreamDefaultReaderRead(reader).then(function (result) {
+ assert(typeIsObject(result));
+ var value = result.value;
+ var done = result.done;
+ assert(typeof done === 'boolean');
+ if (done === true && teeState.closedOrErrored === false) {
+ if (teeState.canceled1 === false) {
+ ReadableStreamDefaultControllerClose(branch1);
+ }
+ if (teeState.canceled2 === false) {
+ ReadableStreamDefaultControllerClose(branch2);
+ }
+ teeState.closedOrErrored = true;
+ }
+ if (teeState.closedOrErrored === true) {
+ return;
+ }
+ var value1 = value;
+ var value2 = value;
+ if (teeState.canceled1 === false) {
+ ReadableStreamDefaultControllerEnqueue(branch1, value1);
+ }
+ if (teeState.canceled2 === false) {
+ ReadableStreamDefaultControllerEnqueue(branch2, value2);
+ }
+ });
+ }
+ return f;
+ }
+ function create_ReadableStreamTeeBranch1CancelFunction() {
+ function f(reason) {
+ var stream = f._stream,
+ teeState = f._teeState;
+ teeState.canceled1 = true;
+ teeState.reason1 = reason;
+ if (teeState.canceled2 === true) {
+ var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
+ var cancelResult = ReadableStreamCancel(stream, compositeReason);
+ teeState._resolve(cancelResult);
+ }
+ return teeState.promise;
+ }
+ return f;
+ }
+ function create_ReadableStreamTeeBranch2CancelFunction() {
+ function f(reason) {
+ var stream = f._stream,
+ teeState = f._teeState;
+ teeState.canceled2 = true;
+ teeState.reason2 = reason;
+ if (teeState.canceled1 === true) {
+ var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
+ var cancelResult = ReadableStreamCancel(stream, compositeReason);
+ teeState._resolve(cancelResult);
+ }
+ return teeState.promise;
+ }
+ return f;
+ }
+ function ReadableStreamAddReadIntoRequest(stream) {
+ assert(IsReadableStreamBYOBReader(stream._reader) === true);
+ assert(stream._state === 'readable' || stream._state === 'closed');
+ var promise = new Promise(function (resolve, reject) {
+ var readIntoRequest = {
+ _resolve: resolve,
+ _reject: reject
+ };
+ stream._reader._readIntoRequests.push(readIntoRequest);
+ });
+ return promise;
+ }
+ function ReadableStreamAddReadRequest(stream) {
+ assert(IsReadableStreamDefaultReader(stream._reader) === true);
+ assert(stream._state === 'readable');
+ var promise = new Promise(function (resolve, reject) {
+ var readRequest = {
+ _resolve: resolve,
+ _reject: reject
+ };
+ stream._reader._readRequests.push(readRequest);
+ });
+ return promise;
+ }
+ function ReadableStreamCancel(stream, reason) {
+ stream._disturbed = true;
+ if (stream._state === 'closed') {
+ return Promise.resolve(undefined);
+ }
+ if (stream._state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ ReadableStreamClose(stream);
+ var sourceCancelPromise = stream._readableStreamController.__cancelSteps(reason);
+ return sourceCancelPromise.then(function () {
+ return undefined;
+ });
+ }
+ function ReadableStreamClose(stream) {
+ assert(stream._state === 'readable');
+ stream._state = 'closed';
+ var reader = stream._reader;
+ if (reader === undefined) {
+ return undefined;
+ }
+ if (IsReadableStreamDefaultReader(reader) === true) {
+ for (var i = 0; i < reader._readRequests.length; i++) {
+ var _resolve = reader._readRequests[i]._resolve;
+ _resolve(CreateIterResultObject(undefined, true));
+ }
+ reader._readRequests = [];
+ }
+ defaultReaderClosedPromiseResolve(reader);
+ return undefined;
+ }
+ function ReadableStreamError(stream, e) {
+ assert(IsReadableStream(stream) === true, 'stream must be ReadableStream');
+ assert(stream._state === 'readable', 'state must be readable');
+ stream._state = 'errored';
+ stream._storedError = e;
+ var reader = stream._reader;
+ if (reader === undefined) {
+ return undefined;
+ }
+ if (IsReadableStreamDefaultReader(reader) === true) {
+ for (var i = 0; i < reader._readRequests.length; i++) {
+ var readRequest = reader._readRequests[i];
+ readRequest._reject(e);
+ }
+ reader._readRequests = [];
+ } else {
+ assert(IsReadableStreamBYOBReader(reader), 'reader must be ReadableStreamBYOBReader');
+ for (var _i = 0; _i < reader._readIntoRequests.length; _i++) {
+ var readIntoRequest = reader._readIntoRequests[_i];
+ readIntoRequest._reject(e);
+ }
+ reader._readIntoRequests = [];
+ }
+ defaultReaderClosedPromiseReject(reader, e);
+ reader._closedPromise.catch(function () {});
+ }
+ function ReadableStreamFulfillReadIntoRequest(stream, chunk, done) {
+ var reader = stream._reader;
+ assert(reader._readIntoRequests.length > 0);
+ var readIntoRequest = reader._readIntoRequests.shift();
+ readIntoRequest._resolve(CreateIterResultObject(chunk, done));
+ }
+ function ReadableStreamFulfillReadRequest(stream, chunk, done) {
+ var reader = stream._reader;
+ assert(reader._readRequests.length > 0);
+ var readRequest = reader._readRequests.shift();
+ readRequest._resolve(CreateIterResultObject(chunk, done));
+ }
+ function ReadableStreamGetNumReadIntoRequests(stream) {
+ return stream._reader._readIntoRequests.length;
+ }
+ function ReadableStreamGetNumReadRequests(stream) {
+ return stream._reader._readRequests.length;
+ }
+ function ReadableStreamHasBYOBReader(stream) {
+ var reader = stream._reader;
+ if (reader === undefined) {
+ return false;
+ }
+ if (IsReadableStreamBYOBReader(reader) === false) {
+ return false;
+ }
+ return true;
+ }
+ function ReadableStreamHasDefaultReader(stream) {
+ var reader = stream._reader;
+ if (reader === undefined) {
+ return false;
+ }
+ if (IsReadableStreamDefaultReader(reader) === false) {
+ return false;
+ }
+ return true;
+ }
+ var ReadableStreamDefaultReader = function () {
+ function ReadableStreamDefaultReader(stream) {
+ _classCallCheck(this, ReadableStreamDefaultReader);
+ if (IsReadableStream(stream) === false) {
+ throw new TypeError('ReadableStreamDefaultReader can only be constructed with a ReadableStream instance');
+ }
+ if (IsReadableStreamLocked(stream) === true) {
+ throw new TypeError('This stream has already been locked for exclusive reading by another reader');
+ }
+ ReadableStreamReaderGenericInitialize(this, stream);
+ this._readRequests = [];
+ }
+ _createClass(ReadableStreamDefaultReader, [{
+ key: 'cancel',
+ value: function cancel(reason) {
+ if (IsReadableStreamDefaultReader(this) === false) {
+ return Promise.reject(defaultReaderBrandCheckException('cancel'));
+ }
+ if (this._ownerReadableStream === undefined) {
+ return Promise.reject(readerLockException('cancel'));
+ }
+ return ReadableStreamReaderGenericCancel(this, reason);
+ }
+ }, {
+ key: 'read',
+ value: function read() {
+ if (IsReadableStreamDefaultReader(this) === false) {
+ return Promise.reject(defaultReaderBrandCheckException('read'));
+ }
+ if (this._ownerReadableStream === undefined) {
+ return Promise.reject(readerLockException('read from'));
+ }
+ return ReadableStreamDefaultReaderRead(this);
+ }
+ }, {
+ key: 'releaseLock',
+ value: function releaseLock() {
+ if (IsReadableStreamDefaultReader(this) === false) {
+ throw defaultReaderBrandCheckException('releaseLock');
+ }
+ if (this._ownerReadableStream === undefined) {
+ return;
+ }
+ if (this._readRequests.length > 0) {
+ throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
+ }
+ ReadableStreamReaderGenericRelease(this);
+ }
+ }, {
+ key: 'closed',
+ get: function get() {
+ if (IsReadableStreamDefaultReader(this) === false) {
+ return Promise.reject(defaultReaderBrandCheckException('closed'));
+ }
+ return this._closedPromise;
+ }
+ }]);
+ return ReadableStreamDefaultReader;
+ }();
+ var ReadableStreamBYOBReader = function () {
+ function ReadableStreamBYOBReader(stream) {
+ _classCallCheck(this, ReadableStreamBYOBReader);
+ if (!IsReadableStream(stream)) {
+ throw new TypeError('ReadableStreamBYOBReader can only be constructed with a ReadableStream instance given a ' + 'byte source');
+ }
+ if (IsReadableByteStreamController(stream._readableStreamController) === false) {
+ throw new TypeError('Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte ' + 'source');
+ }
+ if (IsReadableStreamLocked(stream)) {
+ throw new TypeError('This stream has already been locked for exclusive reading by another reader');
+ }
+ ReadableStreamReaderGenericInitialize(this, stream);
+ this._readIntoRequests = [];
+ }
+ _createClass(ReadableStreamBYOBReader, [{
+ key: 'cancel',
+ value: function cancel(reason) {
+ if (!IsReadableStreamBYOBReader(this)) {
+ return Promise.reject(byobReaderBrandCheckException('cancel'));
+ }
+ if (this._ownerReadableStream === undefined) {
+ return Promise.reject(readerLockException('cancel'));
+ }
+ return ReadableStreamReaderGenericCancel(this, reason);
+ }
+ }, {
+ key: 'read',
+ value: function read(view) {
+ if (!IsReadableStreamBYOBReader(this)) {
+ return Promise.reject(byobReaderBrandCheckException('read'));
+ }
+ if (this._ownerReadableStream === undefined) {
+ return Promise.reject(readerLockException('read from'));
+ }
+ if (!ArrayBuffer.isView(view)) {
+ return Promise.reject(new TypeError('view must be an array buffer view'));
+ }
+ if (view.byteLength === 0) {
+ return Promise.reject(new TypeError('view must have non-zero byteLength'));
+ }
+ return ReadableStreamBYOBReaderRead(this, view);
+ }
+ }, {
+ key: 'releaseLock',
+ value: function releaseLock() {
+ if (!IsReadableStreamBYOBReader(this)) {
+ throw byobReaderBrandCheckException('releaseLock');
+ }
+ if (this._ownerReadableStream === undefined) {
+ return;
+ }
+ if (this._readIntoRequests.length > 0) {
+ throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
+ }
+ ReadableStreamReaderGenericRelease(this);
+ }
+ }, {
+ key: 'closed',
+ get: function get() {
+ if (!IsReadableStreamBYOBReader(this)) {
+ return Promise.reject(byobReaderBrandCheckException('closed'));
+ }
+ return this._closedPromise;
+ }
+ }]);
+ return ReadableStreamBYOBReader;
+ }();
+ function IsReadableStreamBYOBReader(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_readIntoRequests')) {
+ return false;
+ }
+ return true;
+ }
+ function IsReadableStreamDefaultReader(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {
+ return false;
+ }
+ return true;
+ }
+ function ReadableStreamReaderGenericInitialize(reader, stream) {
+ reader._ownerReadableStream = stream;
+ stream._reader = reader;
+ if (stream._state === 'readable') {
+ defaultReaderClosedPromiseInitialize(reader);
+ } else if (stream._state === 'closed') {
+ defaultReaderClosedPromiseInitializeAsResolved(reader);
+ } else {
+ assert(stream._state === 'errored', 'state must be errored');
+ defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);
+ reader._closedPromise.catch(function () {});
+ }
+ }
+ function ReadableStreamReaderGenericCancel(reader, reason) {
+ var stream = reader._ownerReadableStream;
+ assert(stream !== undefined);
+ return ReadableStreamCancel(stream, reason);
+ }
+ function ReadableStreamReaderGenericRelease(reader) {
+ assert(reader._ownerReadableStream !== undefined);
+ assert(reader._ownerReadableStream._reader === reader);
+ if (reader._ownerReadableStream._state === 'readable') {
+ defaultReaderClosedPromiseReject(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
+ } else {
+ defaultReaderClosedPromiseResetToRejected(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
+ }
+ reader._closedPromise.catch(function () {});
+ reader._ownerReadableStream._reader = undefined;
+ reader._ownerReadableStream = undefined;
+ }
+ function ReadableStreamBYOBReaderRead(reader, view) {
+ var stream = reader._ownerReadableStream;
+ assert(stream !== undefined);
+ stream._disturbed = true;
+ if (stream._state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ return ReadableByteStreamControllerPullInto(stream._readableStreamController, view);
+ }
+ function ReadableStreamDefaultReaderRead(reader) {
+ var stream = reader._ownerReadableStream;
+ assert(stream !== undefined);
+ stream._disturbed = true;
+ if (stream._state === 'closed') {
+ return Promise.resolve(CreateIterResultObject(undefined, true));
+ }
+ if (stream._state === 'errored') {
+ return Promise.reject(stream._storedError);
+ }
+ assert(stream._state === 'readable');
+ return stream._readableStreamController.__pullSteps();
+ }
+ var ReadableStreamDefaultController = function () {
+ function ReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark) {
+ _classCallCheck(this, ReadableStreamDefaultController);
+ if (IsReadableStream(stream) === false) {
+ throw new TypeError('ReadableStreamDefaultController can only be constructed with a ReadableStream instance');
+ }
+ if (stream._readableStreamController !== undefined) {
+ throw new TypeError('ReadableStreamDefaultController instances can only be created by the ReadableStream constructor');
+ }
+ this._controlledReadableStream = stream;
+ this._underlyingSource = underlyingSource;
+ this._queue = undefined;
+ this._queueTotalSize = undefined;
+ ResetQueue(this);
+ this._started = false;
+ this._closeRequested = false;
+ this._pullAgain = false;
+ this._pulling = false;
+ var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
+ this._strategySize = normalizedStrategy.size;
+ this._strategyHWM = normalizedStrategy.highWaterMark;
+ var controller = this;
+ var startResult = InvokeOrNoop(underlyingSource, 'start', [this]);
+ Promise.resolve(startResult).then(function () {
+ controller._started = true;
+ assert(controller._pulling === false);
+ assert(controller._pullAgain === false);
+ ReadableStreamDefaultControllerCallPullIfNeeded(controller);
+ }, function (r) {
+ ReadableStreamDefaultControllerErrorIfNeeded(controller, r);
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ _createClass(ReadableStreamDefaultController, [{
+ key: 'close',
+ value: function close() {
+ if (IsReadableStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('close');
+ }
+ if (this._closeRequested === true) {
+ throw new TypeError('The stream has already been closed; do not close it again!');
+ }
+ var state = this._controlledReadableStream._state;
+ if (state !== 'readable') {
+ throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
+ }
+ ReadableStreamDefaultControllerClose(this);
+ }
+ }, {
+ key: 'enqueue',
+ value: function enqueue(chunk) {
+ if (IsReadableStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('enqueue');
+ }
+ if (this._closeRequested === true) {
+ throw new TypeError('stream is closed or draining');
+ }
+ var state = this._controlledReadableStream._state;
+ if (state !== 'readable') {
+ throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
+ }
+ return ReadableStreamDefaultControllerEnqueue(this, chunk);
+ }
+ }, {
+ key: 'error',
+ value: function error(e) {
+ if (IsReadableStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('error');
+ }
+ var stream = this._controlledReadableStream;
+ if (stream._state !== 'readable') {
+ throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
+ }
+ ReadableStreamDefaultControllerError(this, e);
+ }
+ }, {
+ key: '__cancelSteps',
+ value: function __cancelSteps(reason) {
+ ResetQueue(this);
+ return PromiseInvokeOrNoop(this._underlyingSource, 'cancel', [reason]);
+ }
+ }, {
+ key: '__pullSteps',
+ value: function __pullSteps() {
+ var stream = this._controlledReadableStream;
+ if (this._queue.length > 0) {
+ var chunk = DequeueValue(this);
+ if (this._closeRequested === true && this._queue.length === 0) {
+ ReadableStreamClose(stream);
+ } else {
+ ReadableStreamDefaultControllerCallPullIfNeeded(this);
+ }
+ return Promise.resolve(CreateIterResultObject(chunk, false));
+ }
+ var pendingPromise = ReadableStreamAddReadRequest(stream);
+ ReadableStreamDefaultControllerCallPullIfNeeded(this);
+ return pendingPromise;
+ }
+ }, {
+ key: 'desiredSize',
+ get: function get() {
+ if (IsReadableStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('desiredSize');
+ }
+ return ReadableStreamDefaultControllerGetDesiredSize(this);
+ }
+ }]);
+ return ReadableStreamDefaultController;
+ }();
+ function IsReadableStreamDefaultController(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSource')) {
+ return false;
+ }
+ return true;
+ }
+ function ReadableStreamDefaultControllerCallPullIfNeeded(controller) {
+ var shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);
+ if (shouldPull === false) {
+ return undefined;
+ }
+ if (controller._pulling === true) {
+ controller._pullAgain = true;
+ return undefined;
+ }
+ assert(controller._pullAgain === false);
+ controller._pulling = true;
+ var pullPromise = PromiseInvokeOrNoop(controller._underlyingSource, 'pull', [controller]);
+ pullPromise.then(function () {
+ controller._pulling = false;
+ if (controller._pullAgain === true) {
+ controller._pullAgain = false;
+ return ReadableStreamDefaultControllerCallPullIfNeeded(controller);
+ }
+ return undefined;
+ }, function (e) {
+ ReadableStreamDefaultControllerErrorIfNeeded(controller, e);
+ }).catch(rethrowAssertionErrorRejection);
+ return undefined;
+ }
+ function ReadableStreamDefaultControllerShouldCallPull(controller) {
+ var stream = controller._controlledReadableStream;
+ if (stream._state === 'closed' || stream._state === 'errored') {
+ return false;
+ }
+ if (controller._closeRequested === true) {
+ return false;
+ }
+ if (controller._started === false) {
+ return false;
+ }
+ if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
+ return true;
+ }
+ var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);
+ if (desiredSize > 0) {
+ return true;
+ }
+ return false;
+ }
+ function ReadableStreamDefaultControllerClose(controller) {
+ var stream = controller._controlledReadableStream;
+ assert(controller._closeRequested === false);
+ assert(stream._state === 'readable');
+ controller._closeRequested = true;
+ if (controller._queue.length === 0) {
+ ReadableStreamClose(stream);
+ }
+ }
+ function ReadableStreamDefaultControllerEnqueue(controller, chunk) {
+ var stream = controller._controlledReadableStream;
+ assert(controller._closeRequested === false);
+ assert(stream._state === 'readable');
+ if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
+ ReadableStreamFulfillReadRequest(stream, chunk, false);
+ } else {
+ var chunkSize = 1;
+ if (controller._strategySize !== undefined) {
+ var strategySize = controller._strategySize;
+ try {
+ chunkSize = strategySize(chunk);
+ } catch (chunkSizeE) {
+ ReadableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
+ throw chunkSizeE;
+ }
+ }
+ try {
+ EnqueueValueWithSize(controller, chunk, chunkSize);
+ } catch (enqueueE) {
+ ReadableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
+ throw enqueueE;
+ }
+ }
+ ReadableStreamDefaultControllerCallPullIfNeeded(controller);
+ return undefined;
+ }
+ function ReadableStreamDefaultControllerError(controller, e) {
+ var stream = controller._controlledReadableStream;
+ assert(stream._state === 'readable');
+ ResetQueue(controller);
+ ReadableStreamError(stream, e);
+ }
+ function ReadableStreamDefaultControllerErrorIfNeeded(controller, e) {
+ if (controller._controlledReadableStream._state === 'readable') {
+ ReadableStreamDefaultControllerError(controller, e);
+ }
+ }
+ function ReadableStreamDefaultControllerGetDesiredSize(controller) {
+ var stream = controller._controlledReadableStream;
+ var state = stream._state;
+ if (state === 'errored') {
+ return null;
+ }
+ if (state === 'closed') {
+ return 0;
+ }
+ return controller._strategyHWM - controller._queueTotalSize;
+ }
+ var ReadableStreamBYOBRequest = function () {
+ function ReadableStreamBYOBRequest(controller, view) {
+ _classCallCheck(this, ReadableStreamBYOBRequest);
+ this._associatedReadableByteStreamController = controller;
+ this._view = view;
+ }
+ _createClass(ReadableStreamBYOBRequest, [{
+ key: 'respond',
+ value: function respond(bytesWritten) {
+ if (IsReadableStreamBYOBRequest(this) === false) {
+ throw byobRequestBrandCheckException('respond');
+ }
+ if (this._associatedReadableByteStreamController === undefined) {
+ throw new TypeError('This BYOB request has been invalidated');
+ }
+ ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);
+ }
+ }, {
+ key: 'respondWithNewView',
+ value: function respondWithNewView(view) {
+ if (IsReadableStreamBYOBRequest(this) === false) {
+ throw byobRequestBrandCheckException('respond');
+ }
+ if (this._associatedReadableByteStreamController === undefined) {
+ throw new TypeError('This BYOB request has been invalidated');
+ }
+ if (!ArrayBuffer.isView(view)) {
+ throw new TypeError('You can only respond with array buffer views');
+ }
+ ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);
+ }
+ }, {
+ key: 'view',
+ get: function get() {
+ return this._view;
+ }
+ }]);
+ return ReadableStreamBYOBRequest;
+ }();
+ var ReadableByteStreamController = function () {
+ function ReadableByteStreamController(stream, underlyingByteSource, highWaterMark) {
+ _classCallCheck(this, ReadableByteStreamController);
+ if (IsReadableStream(stream) === false) {
+ throw new TypeError('ReadableByteStreamController can only be constructed with a ReadableStream instance given ' + 'a byte source');
+ }
+ if (stream._readableStreamController !== undefined) {
+ throw new TypeError('ReadableByteStreamController instances can only be created by the ReadableStream constructor given a byte ' + 'source');
+ }
+ this._controlledReadableStream = stream;
+ this._underlyingByteSource = underlyingByteSource;
+ this._pullAgain = false;
+ this._pulling = false;
+ ReadableByteStreamControllerClearPendingPullIntos(this);
+ this._queue = this._queueTotalSize = undefined;
+ ResetQueue(this);
+ this._closeRequested = false;
+ this._started = false;
+ this._strategyHWM = ValidateAndNormalizeHighWaterMark(highWaterMark);
+ var autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;
+ if (autoAllocateChunkSize !== undefined) {
+ if (Number.isInteger(autoAllocateChunkSize) === false || autoAllocateChunkSize <= 0) {
+ throw new RangeError('autoAllocateChunkSize must be a positive integer');
+ }
+ }
+ this._autoAllocateChunkSize = autoAllocateChunkSize;
+ this._pendingPullIntos = [];
+ var controller = this;
+ var startResult = InvokeOrNoop(underlyingByteSource, 'start', [this]);
+ Promise.resolve(startResult).then(function () {
+ controller._started = true;
+ assert(controller._pulling === false);
+ assert(controller._pullAgain === false);
+ ReadableByteStreamControllerCallPullIfNeeded(controller);
+ }, function (r) {
+ if (stream._state === 'readable') {
+ ReadableByteStreamControllerError(controller, r);
+ }
+ }).catch(rethrowAssertionErrorRejection);
+ }
+ _createClass(ReadableByteStreamController, [{
+ key: 'close',
+ value: function close() {
+ if (IsReadableByteStreamController(this) === false) {
+ throw byteStreamControllerBrandCheckException('close');
+ }
+ if (this._closeRequested === true) {
+ throw new TypeError('The stream has already been closed; do not close it again!');
+ }
+ var state = this._controlledReadableStream._state;
+ if (state !== 'readable') {
+ throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
+ }
+ ReadableByteStreamControllerClose(this);
+ }
+ }, {
+ key: 'enqueue',
+ value: function enqueue(chunk) {
+ if (IsReadableByteStreamController(this) === false) {
+ throw byteStreamControllerBrandCheckException('enqueue');
+ }
+ if (this._closeRequested === true) {
+ throw new TypeError('stream is closed or draining');
+ }
+ var state = this._controlledReadableStream._state;
+ if (state !== 'readable') {
+ throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
+ }
+ if (!ArrayBuffer.isView(chunk)) {
+ throw new TypeError('You can only enqueue array buffer views when using a ReadableByteStreamController');
+ }
+ ReadableByteStreamControllerEnqueue(this, chunk);
+ }
+ }, {
+ key: 'error',
+ value: function error(e) {
+ if (IsReadableByteStreamController(this) === false) {
+ throw byteStreamControllerBrandCheckException('error');
+ }
+ var stream = this._controlledReadableStream;
+ if (stream._state !== 'readable') {
+ throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
+ }
+ ReadableByteStreamControllerError(this, e);
+ }
+ }, {
+ key: '__cancelSteps',
+ value: function __cancelSteps(reason) {
+ if (this._pendingPullIntos.length > 0) {
+ var firstDescriptor = this._pendingPullIntos[0];
+ firstDescriptor.bytesFilled = 0;
+ }
+ ResetQueue(this);
+ return PromiseInvokeOrNoop(this._underlyingByteSource, 'cancel', [reason]);
+ }
+ }, {
+ key: '__pullSteps',
+ value: function __pullSteps() {
+ var stream = this._controlledReadableStream;
+ assert(ReadableStreamHasDefaultReader(stream) === true);
+ if (this._queueTotalSize > 0) {
+ assert(ReadableStreamGetNumReadRequests(stream) === 0);
+ var entry = this._queue.shift();
+ this._queueTotalSize -= entry.byteLength;
+ ReadableByteStreamControllerHandleQueueDrain(this);
+ var view = void 0;
+ try {
+ view = new Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);
+ } catch (viewE) {
+ return Promise.reject(viewE);
+ }
+ return Promise.resolve(CreateIterResultObject(view, false));
+ }
+ var autoAllocateChunkSize = this._autoAllocateChunkSize;
+ if (autoAllocateChunkSize !== undefined) {
+ var buffer = void 0;
+ try {
+ buffer = new ArrayBuffer(autoAllocateChunkSize);
+ } catch (bufferE) {
+ return Promise.reject(bufferE);
+ }
+ var pullIntoDescriptor = {
+ buffer: buffer,
+ byteOffset: 0,
+ byteLength: autoAllocateChunkSize,
+ bytesFilled: 0,
+ elementSize: 1,
+ ctor: Uint8Array,
+ readerType: 'default'
+ };
+ this._pendingPullIntos.push(pullIntoDescriptor);
+ }
+ var promise = ReadableStreamAddReadRequest(stream);
+ ReadableByteStreamControllerCallPullIfNeeded(this);
+ return promise;
+ }
+ }, {
+ key: 'byobRequest',
+ get: function get() {
+ if (IsReadableByteStreamController(this) === false) {
+ throw byteStreamControllerBrandCheckException('byobRequest');
+ }
+ if (this._byobRequest === undefined && this._pendingPullIntos.length > 0) {
+ var firstDescriptor = this._pendingPullIntos[0];
+ var view = new Uint8Array(firstDescriptor.buffer, firstDescriptor.byteOffset + firstDescriptor.bytesFilled, firstDescriptor.byteLength - firstDescriptor.bytesFilled);
+ this._byobRequest = new ReadableStreamBYOBRequest(this, view);
+ }
+ return this._byobRequest;
+ }
+ }, {
+ key: 'desiredSize',
+ get: function get() {
+ if (IsReadableByteStreamController(this) === false) {
+ throw byteStreamControllerBrandCheckException('desiredSize');
+ }
+ return ReadableByteStreamControllerGetDesiredSize(this);
+ }
+ }]);
+ return ReadableByteStreamController;
+ }();
+ function IsReadableByteStreamController(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_underlyingByteSource')) {
+ return false;
+ }
+ return true;
+ }
+ function IsReadableStreamBYOBRequest(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_associatedReadableByteStreamController')) {
+ return false;
+ }
+ return true;
+ }
+ function ReadableByteStreamControllerCallPullIfNeeded(controller) {
+ var shouldPull = ReadableByteStreamControllerShouldCallPull(controller);
+ if (shouldPull === false) {
+ return undefined;
+ }
+ if (controller._pulling === true) {
+ controller._pullAgain = true;
+ return undefined;
+ }
+ assert(controller._pullAgain === false);
+ controller._pulling = true;
+ var pullPromise = PromiseInvokeOrNoop(controller._underlyingByteSource, 'pull', [controller]);
+ pullPromise.then(function () {
+ controller._pulling = false;
+ if (controller._pullAgain === true) {
+ controller._pullAgain = false;
+ ReadableByteStreamControllerCallPullIfNeeded(controller);
+ }
+ }, function (e) {
+ if (controller._controlledReadableStream._state === 'readable') {
+ ReadableByteStreamControllerError(controller, e);
+ }
+ }).catch(rethrowAssertionErrorRejection);
+ return undefined;
+ }
+ function ReadableByteStreamControllerClearPendingPullIntos(controller) {
+ ReadableByteStreamControllerInvalidateBYOBRequest(controller);
+ controller._pendingPullIntos = [];
+ }
+ function ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor) {
+ assert(stream._state !== 'errored', 'state must not be errored');
+ var done = false;
+ if (stream._state === 'closed') {
+ assert(pullIntoDescriptor.bytesFilled === 0);
+ done = true;
+ }
+ var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);
+ if (pullIntoDescriptor.readerType === 'default') {
+ ReadableStreamFulfillReadRequest(stream, filledView, done);
+ } else {
+ assert(pullIntoDescriptor.readerType === 'byob');
+ ReadableStreamFulfillReadIntoRequest(stream, filledView, done);
+ }
+ }
+ function ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor) {
+ var bytesFilled = pullIntoDescriptor.bytesFilled;
+ var elementSize = pullIntoDescriptor.elementSize;
+ assert(bytesFilled <= pullIntoDescriptor.byteLength);
+ assert(bytesFilled % elementSize === 0);
+ return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, bytesFilled / elementSize);
+ }
+ function ReadableByteStreamControllerEnqueueChunkToQueue(controller, buffer, byteOffset, byteLength) {
+ controller._queue.push({
+ buffer: buffer,
+ byteOffset: byteOffset,
+ byteLength: byteLength
+ });
+ controller._queueTotalSize += byteLength;
+ }
+ function ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) {
+ var elementSize = pullIntoDescriptor.elementSize;
+ var currentAlignedBytes = pullIntoDescriptor.bytesFilled - pullIntoDescriptor.bytesFilled % elementSize;
+ var maxBytesToCopy = Math.min(controller._queueTotalSize, pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled);
+ var maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;
+ var maxAlignedBytes = maxBytesFilled - maxBytesFilled % elementSize;
+ var totalBytesToCopyRemaining = maxBytesToCopy;
+ var ready = false;
+ if (maxAlignedBytes > currentAlignedBytes) {
+ totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;
+ ready = true;
+ }
+ var queue = controller._queue;
+ while (totalBytesToCopyRemaining > 0) {
+ var headOfQueue = queue[0];
+ var bytesToCopy = Math.min(totalBytesToCopyRemaining, headOfQueue.byteLength);
+ var destStart = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
+ ArrayBufferCopy(pullIntoDescriptor.buffer, destStart, headOfQueue.buffer, headOfQueue.byteOffset, bytesToCopy);
+ if (headOfQueue.byteLength === bytesToCopy) {
+ queue.shift();
+ } else {
+ headOfQueue.byteOffset += bytesToCopy;
+ headOfQueue.byteLength -= bytesToCopy;
+ }
+ controller._queueTotalSize -= bytesToCopy;
+ ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesToCopy, pullIntoDescriptor);
+ totalBytesToCopyRemaining -= bytesToCopy;
+ }
+ if (ready === false) {
+ assert(controller._queueTotalSize === 0, 'queue must be empty');
+ assert(pullIntoDescriptor.bytesFilled > 0);
+ assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);
+ }
+ return ready;
+ }
+ function ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, size, pullIntoDescriptor) {
+ assert(controller._pendingPullIntos.length === 0 || controller._pendingPullIntos[0] === pullIntoDescriptor);
+ ReadableByteStreamControllerInvalidateBYOBRequest(controller);
+ pullIntoDescriptor.bytesFilled += size;
+ }
+ function ReadableByteStreamControllerHandleQueueDrain(controller) {
+ assert(controller._controlledReadableStream._state === 'readable');
+ if (controller._queueTotalSize === 0 && controller._closeRequested === true) {
+ ReadableStreamClose(controller._controlledReadableStream);
+ } else {
+ ReadableByteStreamControllerCallPullIfNeeded(controller);
+ }
+ }
+ function ReadableByteStreamControllerInvalidateBYOBRequest(controller) {
+ if (controller._byobRequest === undefined) {
+ return;
+ }
+ controller._byobRequest._associatedReadableByteStreamController = undefined;
+ controller._byobRequest._view = undefined;
+ controller._byobRequest = undefined;
+ }
+ function ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller) {
+ assert(controller._closeRequested === false);
+ while (controller._pendingPullIntos.length > 0) {
+ if (controller._queueTotalSize === 0) {
+ return;
+ }
+ var pullIntoDescriptor = controller._pendingPullIntos[0];
+ if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
+ ReadableByteStreamControllerShiftPendingPullInto(controller);
+ ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
+ }
+ }
+ }
+ function ReadableByteStreamControllerPullInto(controller, view) {
+ var stream = controller._controlledReadableStream;
+ var elementSize = 1;
+ if (view.constructor !== DataView) {
+ elementSize = view.constructor.BYTES_PER_ELEMENT;
+ }
+ var ctor = view.constructor;
+ var pullIntoDescriptor = {
+ buffer: view.buffer,
+ byteOffset: view.byteOffset,
+ byteLength: view.byteLength,
+ bytesFilled: 0,
+ elementSize: elementSize,
+ ctor: ctor,
+ readerType: 'byob'
+ };
+ if (controller._pendingPullIntos.length > 0) {
+ pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
+ controller._pendingPullIntos.push(pullIntoDescriptor);
+ return ReadableStreamAddReadIntoRequest(stream);
+ }
+ if (stream._state === 'closed') {
+ var emptyView = new view.constructor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, 0);
+ return Promise.resolve(CreateIterResultObject(emptyView, true));
+ }
+ if (controller._queueTotalSize > 0) {
+ if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
+ var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);
+ ReadableByteStreamControllerHandleQueueDrain(controller);
+ return Promise.resolve(CreateIterResultObject(filledView, false));
+ }
+ if (controller._closeRequested === true) {
+ var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
+ ReadableByteStreamControllerError(controller, e);
+ return Promise.reject(e);
+ }
+ }
+ pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
+ controller._pendingPullIntos.push(pullIntoDescriptor);
+ var promise = ReadableStreamAddReadIntoRequest(stream);
+ ReadableByteStreamControllerCallPullIfNeeded(controller);
+ return promise;
+ }
+ function ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor) {
+ firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);
+ assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');
+ var stream = controller._controlledReadableStream;
+ if (ReadableStreamHasBYOBReader(stream) === true) {
+ while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
+ var pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
+ ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
+ }
+ }
+ }
+ function ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor) {
+ if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {
+ throw new RangeError('bytesWritten out of range');
+ }
+ ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);
+ if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {
+ return;
+ }
+ ReadableByteStreamControllerShiftPendingPullInto(controller);
+ var remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;
+ if (remainderSize > 0) {
+ var end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
+ var remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);
+ ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);
+ }
+ pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
+ pullIntoDescriptor.bytesFilled -= remainderSize;
+ ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
+ ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
+ }
+ function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {
+ var firstDescriptor = controller._pendingPullIntos[0];
+ var stream = controller._controlledReadableStream;
+ if (stream._state === 'closed') {
+ if (bytesWritten !== 0) {
+ throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');
+ }
+ ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);
+ } else {
+ assert(stream._state === 'readable');
+ ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);
+ }
+ }
+ function ReadableByteStreamControllerShiftPendingPullInto(controller) {
+ var descriptor = controller._pendingPullIntos.shift();
+ ReadableByteStreamControllerInvalidateBYOBRequest(controller);
+ return descriptor;
+ }
+ function ReadableByteStreamControllerShouldCallPull(controller) {
+ var stream = controller._controlledReadableStream;
+ if (stream._state !== 'readable') {
+ return false;
+ }
+ if (controller._closeRequested === true) {
+ return false;
+ }
+ if (controller._started === false) {
+ return false;
+ }
+ if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
+ return true;
+ }
+ if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
+ return true;
+ }
+ if (ReadableByteStreamControllerGetDesiredSize(controller) > 0) {
+ return true;
+ }
+ return false;
+ }
+ function ReadableByteStreamControllerClose(controller) {
+ var stream = controller._controlledReadableStream;
+ assert(controller._closeRequested === false);
+ assert(stream._state === 'readable');
+ if (controller._queueTotalSize > 0) {
+ controller._closeRequested = true;
+ return;
+ }
+ if (controller._pendingPullIntos.length > 0) {
+ var firstPendingPullInto = controller._pendingPullIntos[0];
+ if (firstPendingPullInto.bytesFilled > 0) {
+ var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
+ ReadableByteStreamControllerError(controller, e);
+ throw e;
+ }
+ }
+ ReadableStreamClose(stream);
+ }
+ function ReadableByteStreamControllerEnqueue(controller, chunk) {
+ var stream = controller._controlledReadableStream;
+ assert(controller._closeRequested === false);
+ assert(stream._state === 'readable');
+ var buffer = chunk.buffer;
+ var byteOffset = chunk.byteOffset;
+ var byteLength = chunk.byteLength;
+ var transferredBuffer = TransferArrayBuffer(buffer);
+ if (ReadableStreamHasDefaultReader(stream) === true) {
+ if (ReadableStreamGetNumReadRequests(stream) === 0) {
+ ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
+ } else {
+ assert(controller._queue.length === 0);
+ var transferredView = new Uint8Array(transferredBuffer, byteOffset, byteLength);
+ ReadableStreamFulfillReadRequest(stream, transferredView, false);
+ }
+ } else if (ReadableStreamHasBYOBReader(stream) === true) {
+ ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
+ ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
+ } else {
+ assert(IsReadableStreamLocked(stream) === false, 'stream must not be locked');
+ ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
+ }
+ }
+ function ReadableByteStreamControllerError(controller, e) {
+ var stream = controller._controlledReadableStream;
+ assert(stream._state === 'readable');
+ ReadableByteStreamControllerClearPendingPullIntos(controller);
+ ResetQueue(controller);
+ ReadableStreamError(stream, e);
+ }
+ function ReadableByteStreamControllerGetDesiredSize(controller) {
+ var stream = controller._controlledReadableStream;
+ var state = stream._state;
+ if (state === 'errored') {
+ return null;
+ }
+ if (state === 'closed') {
+ return 0;
+ }
+ return controller._strategyHWM - controller._queueTotalSize;
+ }
+ function ReadableByteStreamControllerRespond(controller, bytesWritten) {
+ bytesWritten = Number(bytesWritten);
+ if (IsFiniteNonNegativeNumber(bytesWritten) === false) {
+ throw new RangeError('bytesWritten must be a finite');
+ }
+ assert(controller._pendingPullIntos.length > 0);
+ ReadableByteStreamControllerRespondInternal(controller, bytesWritten);
+ }
+ function ReadableByteStreamControllerRespondWithNewView(controller, view) {
+ assert(controller._pendingPullIntos.length > 0);
+ var firstDescriptor = controller._pendingPullIntos[0];
+ if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset) {
+ throw new RangeError('The region specified by view does not match byobRequest');
+ }
+ if (firstDescriptor.byteLength !== view.byteLength) {
+ throw new RangeError('The buffer of view has different capacity than byobRequest');
+ }
+ firstDescriptor.buffer = view.buffer;
+ ReadableByteStreamControllerRespondInternal(controller, view.byteLength);
+ }
+ function streamBrandCheckException(name) {
+ return new TypeError('ReadableStream.prototype.' + name + ' can only be used on a ReadableStream');
+ }
+ function readerLockException(name) {
+ return new TypeError('Cannot ' + name + ' a stream using a released reader');
+ }
+ function defaultReaderBrandCheckException(name) {
+ return new TypeError('ReadableStreamDefaultReader.prototype.' + name + ' can only be used on a ReadableStreamDefaultReader');
+ }
+ function defaultReaderClosedPromiseInitialize(reader) {
+ reader._closedPromise = new Promise(function (resolve, reject) {
+ reader._closedPromise_resolve = resolve;
+ reader._closedPromise_reject = reject;
+ });
+ }
+ function defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {
+ reader._closedPromise = Promise.reject(reason);
+ reader._closedPromise_resolve = undefined;
+ reader._closedPromise_reject = undefined;
+ }
+ function defaultReaderClosedPromiseInitializeAsResolved(reader) {
+ reader._closedPromise = Promise.resolve(undefined);
+ reader._closedPromise_resolve = undefined;
+ reader._closedPromise_reject = undefined;
+ }
+ function defaultReaderClosedPromiseReject(reader, reason) {
+ assert(reader._closedPromise_resolve !== undefined);
+ assert(reader._closedPromise_reject !== undefined);
+ reader._closedPromise_reject(reason);
+ reader._closedPromise_resolve = undefined;
+ reader._closedPromise_reject = undefined;
+ }
+ function defaultReaderClosedPromiseResetToRejected(reader, reason) {
+ assert(reader._closedPromise_resolve === undefined);
+ assert(reader._closedPromise_reject === undefined);
+ reader._closedPromise = Promise.reject(reason);
+ }
+ function defaultReaderClosedPromiseResolve(reader) {
+ assert(reader._closedPromise_resolve !== undefined);
+ assert(reader._closedPromise_reject !== undefined);
+ reader._closedPromise_resolve(undefined);
+ reader._closedPromise_resolve = undefined;
+ reader._closedPromise_reject = undefined;
+ }
+ function byobReaderBrandCheckException(name) {
+ return new TypeError('ReadableStreamBYOBReader.prototype.' + name + ' can only be used on a ReadableStreamBYOBReader');
+ }
+ function defaultControllerBrandCheckException(name) {
+ return new TypeError('ReadableStreamDefaultController.prototype.' + name + ' can only be used on a ReadableStreamDefaultController');
+ }
+ function byobRequestBrandCheckException(name) {
+ return new TypeError('ReadableStreamBYOBRequest.prototype.' + name + ' can only be used on a ReadableStreamBYOBRequest');
+ }
+ function byteStreamControllerBrandCheckException(name) {
+ return new TypeError('ReadableByteStreamController.prototype.' + name + ' can only be used on a ReadableByteStreamController');
+ }
+ function ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise) {
+ try {
+ Promise.prototype.then.call(promise, undefined, function () {});
+ } catch (e) {}
+ }
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var transformStream = __w_pdfjs_require__(6);
+ var readableStream = __w_pdfjs_require__(4);
+ var writableStream = __w_pdfjs_require__(2);
+ exports.TransformStream = transformStream.TransformStream;
+ exports.ReadableStream = readableStream.ReadableStream;
+ exports.IsReadableStreamDisturbed = readableStream.IsReadableStreamDisturbed;
+ exports.ReadableStreamDefaultControllerClose = readableStream.ReadableStreamDefaultControllerClose;
+ exports.ReadableStreamDefaultControllerEnqueue = readableStream.ReadableStreamDefaultControllerEnqueue;
+ exports.ReadableStreamDefaultControllerError = readableStream.ReadableStreamDefaultControllerError;
+ exports.ReadableStreamDefaultControllerGetDesiredSize = readableStream.ReadableStreamDefaultControllerGetDesiredSize;
+ exports.AcquireWritableStreamDefaultWriter = writableStream.AcquireWritableStreamDefaultWriter;
+ exports.IsWritableStream = writableStream.IsWritableStream;
+ exports.IsWritableStreamLocked = writableStream.IsWritableStreamLocked;
+ exports.WritableStream = writableStream.WritableStream;
+ exports.WritableStreamAbort = writableStream.WritableStreamAbort;
+ exports.WritableStreamDefaultControllerError = writableStream.WritableStreamDefaultControllerError;
+ exports.WritableStreamDefaultWriterCloseWithErrorPropagation = writableStream.WritableStreamDefaultWriterCloseWithErrorPropagation;
+ exports.WritableStreamDefaultWriterRelease = writableStream.WritableStreamDefaultWriterRelease;
+ exports.WritableStreamDefaultWriterWrite = writableStream.WritableStreamDefaultWriterWrite;
+}, function (module, exports, __w_pdfjs_require__) {
+ "use strict";
+
+ var _createClass = function () {
+ function defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+ return function (Constructor, protoProps, staticProps) {
+ if (protoProps) defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) defineProperties(Constructor, staticProps);
+ return Constructor;
+ };
+ }();
+ function _classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ }
+ var _require = __w_pdfjs_require__(1),
+ assert = _require.assert;
+ var _require2 = __w_pdfjs_require__(0),
+ InvokeOrNoop = _require2.InvokeOrNoop,
+ PromiseInvokeOrPerformFallback = _require2.PromiseInvokeOrPerformFallback,
+ PromiseInvokeOrNoop = _require2.PromiseInvokeOrNoop,
+ typeIsObject = _require2.typeIsObject;
+ var _require3 = __w_pdfjs_require__(4),
+ ReadableStream = _require3.ReadableStream,
+ ReadableStreamDefaultControllerClose = _require3.ReadableStreamDefaultControllerClose,
+ ReadableStreamDefaultControllerEnqueue = _require3.ReadableStreamDefaultControllerEnqueue,
+ ReadableStreamDefaultControllerError = _require3.ReadableStreamDefaultControllerError,
+ ReadableStreamDefaultControllerGetDesiredSize = _require3.ReadableStreamDefaultControllerGetDesiredSize;
+ var _require4 = __w_pdfjs_require__(2),
+ WritableStream = _require4.WritableStream,
+ WritableStreamDefaultControllerError = _require4.WritableStreamDefaultControllerError;
+ function TransformStreamCloseReadable(transformStream) {
+ if (transformStream._errored === true) {
+ throw new TypeError('TransformStream is already errored');
+ }
+ if (transformStream._readableClosed === true) {
+ throw new TypeError('Readable side is already closed');
+ }
+ TransformStreamCloseReadableInternal(transformStream);
+ }
+ function TransformStreamEnqueueToReadable(transformStream, chunk) {
+ if (transformStream._errored === true) {
+ throw new TypeError('TransformStream is already errored');
+ }
+ if (transformStream._readableClosed === true) {
+ throw new TypeError('Readable side is already closed');
+ }
+ var controller = transformStream._readableController;
+ try {
+ ReadableStreamDefaultControllerEnqueue(controller, chunk);
+ } catch (e) {
+ transformStream._readableClosed = true;
+ TransformStreamErrorIfNeeded(transformStream, e);
+ throw transformStream._storedError;
+ }
+ var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);
+ var maybeBackpressure = desiredSize <= 0;
+ if (maybeBackpressure === true && transformStream._backpressure === false) {
+ TransformStreamSetBackpressure(transformStream, true);
+ }
+ }
+ function TransformStreamError(transformStream, e) {
+ if (transformStream._errored === true) {
+ throw new TypeError('TransformStream is already errored');
+ }
+ TransformStreamErrorInternal(transformStream, e);
+ }
+ function TransformStreamCloseReadableInternal(transformStream) {
+ assert(transformStream._errored === false);
+ assert(transformStream._readableClosed === false);
+ try {
+ ReadableStreamDefaultControllerClose(transformStream._readableController);
+ } catch (e) {
+ assert(false);
+ }
+ transformStream._readableClosed = true;
+ }
+ function TransformStreamErrorIfNeeded(transformStream, e) {
+ if (transformStream._errored === false) {
+ TransformStreamErrorInternal(transformStream, e);
+ }
+ }
+ function TransformStreamErrorInternal(transformStream, e) {
+ assert(transformStream._errored === false);
+ transformStream._errored = true;
+ transformStream._storedError = e;
+ if (transformStream._writableDone === false) {
+ WritableStreamDefaultControllerError(transformStream._writableController, e);
+ }
+ if (transformStream._readableClosed === false) {
+ ReadableStreamDefaultControllerError(transformStream._readableController, e);
+ }
+ }
+ function TransformStreamReadableReadyPromise(transformStream) {
+ assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
+ if (transformStream._backpressure === false) {
+ return Promise.resolve();
+ }
+ assert(transformStream._backpressure === true, '_backpressure should have been initialized');
+ return transformStream._backpressureChangePromise;
+ }
+ function TransformStreamSetBackpressure(transformStream, backpressure) {
+ assert(transformStream._backpressure !== backpressure, 'TransformStreamSetBackpressure() should be called only when backpressure is changed');
+ if (transformStream._backpressureChangePromise !== undefined) {
+ transformStream._backpressureChangePromise_resolve(backpressure);
+ }
+ transformStream._backpressureChangePromise = new Promise(function (resolve) {
+ transformStream._backpressureChangePromise_resolve = resolve;
+ });
+ transformStream._backpressureChangePromise.then(function (resolution) {
+ assert(resolution !== backpressure, '_backpressureChangePromise should be fulfilled only when backpressure is changed');
+ });
+ transformStream._backpressure = backpressure;
+ }
+ function TransformStreamDefaultTransform(chunk, transformStreamController) {
+ var transformStream = transformStreamController._controlledTransformStream;
+ TransformStreamEnqueueToReadable(transformStream, chunk);
+ return Promise.resolve();
+ }
+ function TransformStreamTransform(transformStream, chunk) {
+ assert(transformStream._errored === false);
+ assert(transformStream._transforming === false);
+ assert(transformStream._backpressure === false);
+ transformStream._transforming = true;
+ var transformer = transformStream._transformer;
+ var controller = transformStream._transformStreamController;
+ var transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller], TransformStreamDefaultTransform, [chunk, controller]);
+ return transformPromise.then(function () {
+ transformStream._transforming = false;
+ return TransformStreamReadableReadyPromise(transformStream);
+ }, function (e) {
+ TransformStreamErrorIfNeeded(transformStream, e);
+ return Promise.reject(e);
+ });
+ }
+ function IsTransformStreamDefaultController(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {
+ return false;
+ }
+ return true;
+ }
+ function IsTransformStream(x) {
+ if (!typeIsObject(x)) {
+ return false;
+ }
+ if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {
+ return false;
+ }
+ return true;
+ }
+ var TransformStreamSink = function () {
+ function TransformStreamSink(transformStream, startPromise) {
+ _classCallCheck(this, TransformStreamSink);
+ this._transformStream = transformStream;
+ this._startPromise = startPromise;
+ }
+ _createClass(TransformStreamSink, [{
+ key: 'start',
+ value: function start(c) {
+ var transformStream = this._transformStream;
+ transformStream._writableController = c;
+ return this._startPromise.then(function () {
+ return TransformStreamReadableReadyPromise(transformStream);
+ });
+ }
+ }, {
+ key: 'write',
+ value: function write(chunk) {
+ var transformStream = this._transformStream;
+ return TransformStreamTransform(transformStream, chunk);
+ }
+ }, {
+ key: 'abort',
+ value: function abort() {
+ var transformStream = this._transformStream;
+ transformStream._writableDone = true;
+ TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));
+ }
+ }, {
+ key: 'close',
+ value: function close() {
+ var transformStream = this._transformStream;
+ assert(transformStream._transforming === false);
+ transformStream._writableDone = true;
+ var flushPromise = PromiseInvokeOrNoop(transformStream._transformer, 'flush', [transformStream._transformStreamController]);
+ return flushPromise.then(function () {
+ if (transformStream._errored === true) {
+ return Promise.reject(transformStream._storedError);
+ }
+ if (transformStream._readableClosed === false) {
+ TransformStreamCloseReadableInternal(transformStream);
+ }
+ return Promise.resolve();
+ }).catch(function (r) {
+ TransformStreamErrorIfNeeded(transformStream, r);
+ return Promise.reject(transformStream._storedError);
+ });
+ }
+ }]);
+ return TransformStreamSink;
+ }();
+ var TransformStreamSource = function () {
+ function TransformStreamSource(transformStream, startPromise) {
+ _classCallCheck(this, TransformStreamSource);
+ this._transformStream = transformStream;
+ this._startPromise = startPromise;
+ }
+ _createClass(TransformStreamSource, [{
+ key: 'start',
+ value: function start(c) {
+ var transformStream = this._transformStream;
+ transformStream._readableController = c;
+ return this._startPromise.then(function () {
+ assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
+ if (transformStream._backpressure === true) {
+ return Promise.resolve();
+ }
+ assert(transformStream._backpressure === false, '_backpressure should have been initialized');
+ return transformStream._backpressureChangePromise;
+ });
+ }
+ }, {
+ key: 'pull',
+ value: function pull() {
+ var transformStream = this._transformStream;
+ assert(transformStream._backpressure === true, 'pull() should be never called while _backpressure is false');
+ assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
+ TransformStreamSetBackpressure(transformStream, false);
+ return transformStream._backpressureChangePromise;
+ }
+ }, {
+ key: 'cancel',
+ value: function cancel() {
+ var transformStream = this._transformStream;
+ transformStream._readableClosed = true;
+ TransformStreamErrorInternal(transformStream, new TypeError('Readable side canceled'));
+ }
+ }]);
+ return TransformStreamSource;
+ }();
+ var TransformStreamDefaultController = function () {
+ function TransformStreamDefaultController(transformStream) {
+ _classCallCheck(this, TransformStreamDefaultController);
+ if (IsTransformStream(transformStream) === false) {
+ throw new TypeError('TransformStreamDefaultController can only be ' + 'constructed with a TransformStream instance');
+ }
+ if (transformStream._transformStreamController !== undefined) {
+ throw new TypeError('TransformStreamDefaultController instances can ' + 'only be created by the TransformStream constructor');
+ }
+ this._controlledTransformStream = transformStream;
+ }
+ _createClass(TransformStreamDefaultController, [{
+ key: 'enqueue',
+ value: function enqueue(chunk) {
+ if (IsTransformStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('enqueue');
+ }
+ TransformStreamEnqueueToReadable(this._controlledTransformStream, chunk);
+ }
+ }, {
+ key: 'close',
+ value: function close() {
+ if (IsTransformStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('close');
+ }
+ TransformStreamCloseReadable(this._controlledTransformStream);
+ }
+ }, {
+ key: 'error',
+ value: function error(reason) {
+ if (IsTransformStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('error');
+ }
+ TransformStreamError(this._controlledTransformStream, reason);
+ }
+ }, {
+ key: 'desiredSize',
+ get: function get() {
+ if (IsTransformStreamDefaultController(this) === false) {
+ throw defaultControllerBrandCheckException('desiredSize');
+ }
+ var transformStream = this._controlledTransformStream;
+ var readableController = transformStream._readableController;
+ return ReadableStreamDefaultControllerGetDesiredSize(readableController);
+ }
+ }]);
+ return TransformStreamDefaultController;
+ }();
+ var TransformStream = function () {
+ function TransformStream() {
+ var transformer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ _classCallCheck(this, TransformStream);
+ this._transformer = transformer;
+ var readableStrategy = transformer.readableStrategy,
+ writableStrategy = transformer.writableStrategy;
+ this._transforming = false;
+ this._errored = false;
+ this._storedError = undefined;
+ this._writableController = undefined;
+ this._readableController = undefined;
+ this._transformStreamController = undefined;
+ this._writableDone = false;
+ this._readableClosed = false;
+ this._backpressure = undefined;
+ this._backpressureChangePromise = undefined;
+ this._backpressureChangePromise_resolve = undefined;
+ this._transformStreamController = new TransformStreamDefaultController(this);
+ var startPromise_resolve = void 0;
+ var startPromise = new Promise(function (resolve) {
+ startPromise_resolve = resolve;
+ });
+ var source = new TransformStreamSource(this, startPromise);
+ this._readable = new ReadableStream(source, readableStrategy);
+ var sink = new TransformStreamSink(this, startPromise);
+ this._writable = new WritableStream(sink, writableStrategy);
+ assert(this._writableController !== undefined);
+ assert(this._readableController !== undefined);
+ var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(this._readableController);
+ TransformStreamSetBackpressure(this, desiredSize <= 0);
+ var transformStream = this;
+ var startResult = InvokeOrNoop(transformer, 'start', [transformStream._transformStreamController]);
+ startPromise_resolve(startResult);
+ startPromise.catch(function (e) {
+ if (transformStream._errored === false) {
+ transformStream._errored = true;
+ transformStream._storedError = e;
+ }
+ });
+ }
+ _createClass(TransformStream, [{
+ key: 'readable',
+ get: function get() {
+ if (IsTransformStream(this) === false) {
+ throw streamBrandCheckException('readable');
+ }
+ return this._readable;
+ }
+ }, {
+ key: 'writable',
+ get: function get() {
+ if (IsTransformStream(this) === false) {
+ throw streamBrandCheckException('writable');
+ }
+ return this._writable;
+ }
+ }]);
+ return TransformStream;
+ }();
+ module.exports = { TransformStream: TransformStream };
+ function defaultControllerBrandCheckException(name) {
+ return new TypeError('TransformStreamDefaultController.prototype.' + name + ' can only be used on a TransformStreamDefaultController');
+ }
+ function streamBrandCheckException(name) {
+ return new TypeError('TransformStream.prototype.' + name + ' can only be used on a TransformStream');
+ }
+}, function (module, exports, __w_pdfjs_require__) {
+ module.exports = __w_pdfjs_require__(5);
+}]));
+
+/***/ }),
+/* 11 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.CanvasGraphics = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var _pattern_helper = __w_pdfjs_require__(13);
+
+var _webgl = __w_pdfjs_require__(7);
+
+var MIN_FONT_SIZE = 16;
+var MAX_FONT_SIZE = 100;
+var MAX_GROUP_SIZE = 4096;
+var MIN_WIDTH_FACTOR = 0.65;
+var COMPILE_TYPE3_GLYPHS = true;
+var MAX_SIZE_TO_COMPILE = 1000;
+var FULL_CHUNK_HEIGHT = 16;
+var IsLittleEndianCached = {
+ get value() {
+ return (0, _util.shadow)(IsLittleEndianCached, 'value', (0, _util.isLittleEndian)());
+ }
+};
+function addContextCurrentTransform(ctx) {
+ if (!ctx.mozCurrentTransform) {
+ ctx._originalSave = ctx.save;
+ ctx._originalRestore = ctx.restore;
+ ctx._originalRotate = ctx.rotate;
+ ctx._originalScale = ctx.scale;
+ ctx._originalTranslate = ctx.translate;
+ ctx._originalTransform = ctx.transform;
+ ctx._originalSetTransform = ctx.setTransform;
+ ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
+ ctx._transformStack = [];
+ Object.defineProperty(ctx, 'mozCurrentTransform', {
+ get: function getCurrentTransform() {
+ return this._transformMatrix;
+ }
+ });
+ Object.defineProperty(ctx, 'mozCurrentTransformInverse', {
+ get: function getCurrentTransformInverse() {
+ var m = this._transformMatrix;
+ var a = m[0],
+ b = m[1],
+ c = m[2],
+ d = m[3],
+ e = m[4],
+ f = m[5];
+ var ad_bc = a * d - b * c;
+ var bc_ad = b * c - a * d;
+ return [d / ad_bc, b / bc_ad, c / bc_ad, a / ad_bc, (d * e - c * f) / bc_ad, (b * e - a * f) / ad_bc];
+ }
+ });
+ ctx.save = function ctxSave() {
+ var old = this._transformMatrix;
+ this._transformStack.push(old);
+ this._transformMatrix = old.slice(0, 6);
+ this._originalSave();
+ };
+ ctx.restore = function ctxRestore() {
+ var prev = this._transformStack.pop();
+ if (prev) {
+ this._transformMatrix = prev;
+ this._originalRestore();
+ }
+ };
+ ctx.translate = function ctxTranslate(x, y) {
+ var m = this._transformMatrix;
+ m[4] = m[0] * x + m[2] * y + m[4];
+ m[5] = m[1] * x + m[3] * y + m[5];
+ this._originalTranslate(x, y);
+ };
+ ctx.scale = function ctxScale(x, y) {
+ var m = this._transformMatrix;
+ m[0] = m[0] * x;
+ m[1] = m[1] * x;
+ m[2] = m[2] * y;
+ m[3] = m[3] * y;
+ this._originalScale(x, y);
+ };
+ ctx.transform = function ctxTransform(a, b, c, d, e, f) {
+ var m = this._transformMatrix;
+ this._transformMatrix = [m[0] * a + m[2] * b, m[1] * a + m[3] * b, m[0] * c + m[2] * d, m[1] * c + m[3] * d, m[0] * e + m[2] * f + m[4], m[1] * e + m[3] * f + m[5]];
+ ctx._originalTransform(a, b, c, d, e, f);
+ };
+ ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
+ this._transformMatrix = [a, b, c, d, e, f];
+ ctx._originalSetTransform(a, b, c, d, e, f);
+ };
+ ctx.rotate = function ctxRotate(angle) {
+ var cosValue = Math.cos(angle);
+ var sinValue = Math.sin(angle);
+ var m = this._transformMatrix;
+ this._transformMatrix = [m[0] * cosValue + m[2] * sinValue, m[1] * cosValue + m[3] * sinValue, m[0] * -sinValue + m[2] * cosValue, m[1] * -sinValue + m[3] * cosValue, m[4], m[5]];
+ this._originalRotate(angle);
+ };
+ }
+}
+var CachedCanvases = function CachedCanvasesClosure() {
+ function CachedCanvases(canvasFactory) {
+ this.canvasFactory = canvasFactory;
+ this.cache = Object.create(null);
+ }
+ CachedCanvases.prototype = {
+ getCanvas: function CachedCanvases_getCanvas(id, width, height, trackTransform) {
+ var canvasEntry;
+ if (this.cache[id] !== undefined) {
+ canvasEntry = this.cache[id];
+ this.canvasFactory.reset(canvasEntry, width, height);
+ canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
+ } else {
+ canvasEntry = this.canvasFactory.create(width, height);
+ this.cache[id] = canvasEntry;
+ }
+ if (trackTransform) {
+ addContextCurrentTransform(canvasEntry.context);
+ }
+ return canvasEntry;
+ },
+ clear: function clear() {
+ for (var id in this.cache) {
+ var canvasEntry = this.cache[id];
+ this.canvasFactory.destroy(canvasEntry);
+ delete this.cache[id];
+ }
+ }
+ };
+ return CachedCanvases;
+}();
+function compileType3Glyph(imgData) {
+ var POINT_TO_PROCESS_LIMIT = 1000;
+ var width = imgData.width,
+ height = imgData.height;
+ var i,
+ j,
+ j0,
+ width1 = width + 1;
+ var points = new Uint8Array(width1 * (height + 1));
+ var POINT_TYPES = new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
+ var lineSize = width + 7 & ~7,
+ data0 = imgData.data;
+ var data = new Uint8Array(lineSize * height),
+ pos = 0,
+ ii;
+ for (i = 0, ii = data0.length; i < ii; i++) {
+ var mask = 128,
+ elem = data0[i];
+ while (mask > 0) {
+ data[pos++] = elem & mask ? 0 : 255;
+ mask >>= 1;
+ }
+ }
+ var count = 0;
+ pos = 0;
+ if (data[pos] !== 0) {
+ points[0] = 1;
+ ++count;
+ }
+ for (j = 1; j < width; j++) {
+ if (data[pos] !== data[pos + 1]) {
+ points[j] = data[pos] ? 2 : 1;
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos] !== 0) {
+ points[j] = 2;
+ ++count;
+ }
+ for (i = 1; i < height; i++) {
+ pos = i * lineSize;
+ j0 = i * width1;
+ if (data[pos - lineSize] !== data[pos]) {
+ points[j0] = data[pos] ? 1 : 8;
+ ++count;
+ }
+ var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);
+ for (j = 1; j < width; j++) {
+ sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + (data[pos - lineSize + 1] ? 8 : 0);
+ if (POINT_TYPES[sum]) {
+ points[j0 + j] = POINT_TYPES[sum];
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos - lineSize] !== data[pos]) {
+ points[j0 + j] = data[pos] ? 2 : 4;
+ ++count;
+ }
+ if (count > POINT_TO_PROCESS_LIMIT) {
+ return null;
+ }
+ }
+ pos = lineSize * (height - 1);
+ j0 = i * width1;
+ if (data[pos] !== 0) {
+ points[j0] = 8;
+ ++count;
+ }
+ for (j = 1; j < width; j++) {
+ if (data[pos] !== data[pos + 1]) {
+ points[j0 + j] = data[pos] ? 4 : 8;
+ ++count;
+ }
+ pos++;
+ }
+ if (data[pos] !== 0) {
+ points[j0 + j] = 4;
+ ++count;
+ }
+ if (count > POINT_TO_PROCESS_LIMIT) {
+ return null;
+ }
+ var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
+ var outlines = [];
+ for (i = 0; count && i <= height; i++) {
+ var p = i * width1;
+ var end = p + width;
+ while (p < end && !points[p]) {
+ p++;
+ }
+ if (p === end) {
+ continue;
+ }
+ var coords = [p % width1, i];
+ var type = points[p],
+ p0 = p,
+ pp;
+ do {
+ var step = steps[type];
+ do {
+ p += step;
+ } while (!points[p]);
+ pp = points[p];
+ if (pp !== 5 && pp !== 10) {
+ type = pp;
+ points[p] = 0;
+ } else {
+ type = pp & 0x33 * type >> 4;
+ points[p] &= type >> 2 | type << 2;
+ }
+ coords.push(p % width1);
+ coords.push(p / width1 | 0);
+ --count;
+ } while (p0 !== p);
+ outlines.push(coords);
+ --i;
+ }
+ var drawOutline = function drawOutline(c) {
+ c.save();
+ c.scale(1 / width, -1 / height);
+ c.translate(0, -height);
+ c.beginPath();
+ for (var i = 0, ii = outlines.length; i < ii; i++) {
+ var o = outlines[i];
+ c.moveTo(o[0], o[1]);
+ for (var j = 2, jj = o.length; j < jj; j += 2) {
+ c.lineTo(o[j], o[j + 1]);
+ }
+ }
+ c.fill();
+ c.beginPath();
+ c.restore();
+ };
+ return drawOutline;
+}
+var CanvasExtraState = function CanvasExtraStateClosure() {
+ function CanvasExtraState() {
+ this.alphaIsShape = false;
+ this.fontSize = 0;
+ this.fontSizeScale = 1;
+ this.textMatrix = _util.IDENTITY_MATRIX;
+ this.textMatrixScale = 1;
+ this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
+ this.leading = 0;
+ this.x = 0;
+ this.y = 0;
+ this.lineX = 0;
+ this.lineY = 0;
+ this.charSpacing = 0;
+ this.wordSpacing = 0;
+ this.textHScale = 1;
+ this.textRenderingMode = _util.TextRenderingMode.FILL;
+ this.textRise = 0;
+ this.fillColor = '#000000';
+ this.strokeColor = '#000000';
+ this.patternFill = false;
+ this.fillAlpha = 1;
+ this.strokeAlpha = 1;
+ this.lineWidth = 1;
+ this.activeSMask = null;
+ this.resumeSMaskCtx = null;
+ }
+ CanvasExtraState.prototype = {
+ clone: function CanvasExtraState_clone() {
+ return Object.create(this);
+ },
+ setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
+ this.x = x;
+ this.y = y;
+ }
+ };
+ return CanvasExtraState;
+}();
+var CanvasGraphics = function CanvasGraphicsClosure() {
+ var EXECUTION_TIME = 15;
+ var EXECUTION_STEPS = 10;
+ function CanvasGraphics(canvasCtx, commonObjs, objs, canvasFactory, imageLayer) {
+ this.ctx = canvasCtx;
+ this.current = new CanvasExtraState();
+ this.stateStack = [];
+ this.pendingClip = null;
+ this.pendingEOFill = false;
+ this.res = null;
+ this.xobjs = null;
+ this.commonObjs = commonObjs;
+ this.objs = objs;
+ this.canvasFactory = canvasFactory;
+ this.imageLayer = imageLayer;
+ this.groupStack = [];
+ this.processingType3 = null;
+ this.baseTransform = null;
+ this.baseTransformStack = [];
+ this.groupLevel = 0;
+ this.smaskStack = [];
+ this.smaskCounter = 0;
+ this.tempSMask = null;
+ this.cachedCanvases = new CachedCanvases(this.canvasFactory);
+ if (canvasCtx) {
+ addContextCurrentTransform(canvasCtx);
+ }
+ this.cachedGetSinglePixelWidth = null;
+ }
+ function putBinaryImageData(ctx, imgData) {
+ if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) {
+ ctx.putImageData(imgData, 0, 0);
+ return;
+ }
+ var height = imgData.height,
+ width = imgData.width;
+ var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
+ var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
+ var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
+ var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
+ var srcPos = 0,
+ destPos;
+ var src = imgData.data;
+ var dest = chunkImgData.data;
+ var i, j, thisChunkHeight, elemsInThisChunk;
+ if (imgData.kind === _util.ImageKind.GRAYSCALE_1BPP) {
+ var srcLength = src.byteLength;
+ var dest32 = new Uint32Array(dest.buffer, 0, dest.byteLength >> 2);
+ var dest32DataLength = dest32.length;
+ var fullSrcDiff = width + 7 >> 3;
+ var white = 0xFFFFFFFF;
+ var black = IsLittleEndianCached.value ? 0xFF000000 : 0x000000FF;
+ for (i = 0; i < totalChunks; i++) {
+ thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
+ destPos = 0;
+ for (j = 0; j < thisChunkHeight; j++) {
+ var srcDiff = srcLength - srcPos;
+ var k = 0;
+ var kEnd = srcDiff > fullSrcDiff ? width : srcDiff * 8 - 7;
+ var kEndUnrolled = kEnd & ~7;
+ var mask = 0;
+ var srcByte = 0;
+ for (; k < kEndUnrolled; k += 8) {
+ srcByte = src[srcPos++];
+ dest32[destPos++] = srcByte & 128 ? white : black;
+ dest32[destPos++] = srcByte & 64 ? white : black;
+ dest32[destPos++] = srcByte & 32 ? white : black;
+ dest32[destPos++] = srcByte & 16 ? white : black;
+ dest32[destPos++] = srcByte & 8 ? white : black;
+ dest32[destPos++] = srcByte & 4 ? white : black;
+ dest32[destPos++] = srcByte & 2 ? white : black;
+ dest32[destPos++] = srcByte & 1 ? white : black;
+ }
+ for (; k < kEnd; k++) {
+ if (mask === 0) {
+ srcByte = src[srcPos++];
+ mask = 128;
+ }
+ dest32[destPos++] = srcByte & mask ? white : black;
+ mask >>= 1;
+ }
+ }
+ while (destPos < dest32DataLength) {
+ dest32[destPos++] = 0;
+ }
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ } else if (imgData.kind === _util.ImageKind.RGBA_32BPP) {
+ j = 0;
+ elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;
+ for (i = 0; i < fullChunks; i++) {
+ dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
+ srcPos += elemsInThisChunk;
+ ctx.putImageData(chunkImgData, 0, j);
+ j += FULL_CHUNK_HEIGHT;
+ }
+ if (i < totalChunks) {
+ elemsInThisChunk = width * partialChunkHeight * 4;
+ dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
+ ctx.putImageData(chunkImgData, 0, j);
+ }
+ } else if (imgData.kind === _util.ImageKind.RGB_24BPP) {
+ thisChunkHeight = FULL_CHUNK_HEIGHT;
+ elemsInThisChunk = width * thisChunkHeight;
+ for (i = 0; i < totalChunks; i++) {
+ if (i >= fullChunks) {
+ thisChunkHeight = partialChunkHeight;
+ elemsInThisChunk = width * thisChunkHeight;
+ }
+ destPos = 0;
+ for (j = elemsInThisChunk; j--;) {
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = src[srcPos++];
+ dest[destPos++] = 255;
+ }
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ } else {
+ throw new Error('bad image kind: ' + imgData.kind);
+ }
+ }
+ function putBinaryImageMask(ctx, imgData) {
+ var height = imgData.height,
+ width = imgData.width;
+ var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
+ var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
+ var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
+ var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
+ var srcPos = 0;
+ var src = imgData.data;
+ var dest = chunkImgData.data;
+ for (var i = 0; i < totalChunks; i++) {
+ var thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
+ var destPos = 3;
+ for (var j = 0; j < thisChunkHeight; j++) {
+ var mask = 0;
+ for (var k = 0; k < width; k++) {
+ if (!mask) {
+ var elem = src[srcPos++];
+ mask = 128;
+ }
+ dest[destPos] = elem & mask ? 0 : 255;
+ destPos += 4;
+ mask >>= 1;
+ }
+ }
+ ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
+ }
+ }
+ function copyCtxState(sourceCtx, destCtx) {
+ var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', 'globalCompositeOperation', 'font'];
+ for (var i = 0, ii = properties.length; i < ii; i++) {
+ var property = properties[i];
+ if (sourceCtx[property] !== undefined) {
+ destCtx[property] = sourceCtx[property];
+ }
+ }
+ if (sourceCtx.setLineDash !== undefined) {
+ destCtx.setLineDash(sourceCtx.getLineDash());
+ destCtx.lineDashOffset = sourceCtx.lineDashOffset;
+ }
+ }
+ function resetCtxToDefault(ctx) {
+ ctx.strokeStyle = '#000000';
+ ctx.fillStyle = '#000000';
+ ctx.fillRule = 'nonzero';
+ ctx.globalAlpha = 1;
+ ctx.lineWidth = 1;
+ ctx.lineCap = 'butt';
+ ctx.lineJoin = 'miter';
+ ctx.miterLimit = 10;
+ ctx.globalCompositeOperation = 'source-over';
+ ctx.font = '10px sans-serif';
+ if (ctx.setLineDash !== undefined) {
+ ctx.setLineDash([]);
+ ctx.lineDashOffset = 0;
+ }
+ }
+ function composeSMaskBackdrop(bytes, r0, g0, b0) {
+ var length = bytes.length;
+ for (var i = 3; i < length; i += 4) {
+ var alpha = bytes[i];
+ if (alpha === 0) {
+ bytes[i - 3] = r0;
+ bytes[i - 2] = g0;
+ bytes[i - 1] = b0;
+ } else if (alpha < 255) {
+ var alpha_ = 255 - alpha;
+ bytes[i - 3] = bytes[i - 3] * alpha + r0 * alpha_ >> 8;
+ bytes[i - 2] = bytes[i - 2] * alpha + g0 * alpha_ >> 8;
+ bytes[i - 1] = bytes[i - 1] * alpha + b0 * alpha_ >> 8;
+ }
+ }
+ }
+ function composeSMaskAlpha(maskData, layerData, transferMap) {
+ var length = maskData.length;
+ var scale = 1 / 255;
+ for (var i = 3; i < length; i += 4) {
+ var alpha = transferMap ? transferMap[maskData[i]] : maskData[i];
+ layerData[i] = layerData[i] * alpha * scale | 0;
+ }
+ }
+ function composeSMaskLuminosity(maskData, layerData, transferMap) {
+ var length = maskData.length;
+ for (var i = 3; i < length; i += 4) {
+ var y = maskData[i - 3] * 77 + maskData[i - 2] * 152 + maskData[i - 1] * 28;
+ layerData[i] = transferMap ? layerData[i] * transferMap[y >> 8] >> 8 : layerData[i] * y >> 16;
+ }
+ }
+ function genericComposeSMask(maskCtx, layerCtx, width, height, subtype, backdrop, transferMap) {
+ var hasBackdrop = !!backdrop;
+ var r0 = hasBackdrop ? backdrop[0] : 0;
+ var g0 = hasBackdrop ? backdrop[1] : 0;
+ var b0 = hasBackdrop ? backdrop[2] : 0;
+ var composeFn;
+ if (subtype === 'Luminosity') {
+ composeFn = composeSMaskLuminosity;
+ } else {
+ composeFn = composeSMaskAlpha;
+ }
+ var PIXELS_TO_PROCESS = 1048576;
+ var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));
+ for (var row = 0; row < height; row += chunkSize) {
+ var chunkHeight = Math.min(chunkSize, height - row);
+ var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
+ var layerData = layerCtx.getImageData(0, row, width, chunkHeight);
+ if (hasBackdrop) {
+ composeSMaskBackdrop(maskData.data, r0, g0, b0);
+ }
+ composeFn(maskData.data, layerData.data, transferMap);
+ maskCtx.putImageData(layerData, 0, row);
+ }
+ }
+ function composeSMask(ctx, smask, layerCtx) {
+ var mask = smask.canvas;
+ var maskCtx = smask.context;
+ ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, smask.offsetX, smask.offsetY);
+ var backdrop = smask.backdrop || null;
+ if (!smask.transferMap && _webgl.WebGLUtils.isEnabled) {
+ var composed = _webgl.WebGLUtils.composeSMask(layerCtx.canvas, mask, {
+ subtype: smask.subtype,
+ backdrop: backdrop
+ });
+ ctx.setTransform(1, 0, 0, 1, 0, 0);
+ ctx.drawImage(composed, smask.offsetX, smask.offsetY);
+ return;
+ }
+ genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, smask.subtype, backdrop, smask.transferMap);
+ ctx.drawImage(mask, 0, 0);
+ }
+ var LINE_CAP_STYLES = ['butt', 'round', 'square'];
+ var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
+ var NORMAL_CLIP = {};
+ var EO_CLIP = {};
+ CanvasGraphics.prototype = {
+ beginDrawing: function beginDrawing(_ref) {
+ var transform = _ref.transform,
+ viewport = _ref.viewport,
+ transparency = _ref.transparency,
+ _ref$background = _ref.background,
+ background = _ref$background === undefined ? null : _ref$background;
+
+ var width = this.ctx.canvas.width;
+ var height = this.ctx.canvas.height;
+ this.ctx.save();
+ this.ctx.fillStyle = background || 'rgb(255, 255, 255)';
+ this.ctx.fillRect(0, 0, width, height);
+ this.ctx.restore();
+ if (transparency) {
+ var transparentCanvas = this.cachedCanvases.getCanvas('transparent', width, height, true);
+ this.compositeCtx = this.ctx;
+ this.transparentCanvas = transparentCanvas.canvas;
+ this.ctx = transparentCanvas.context;
+ this.ctx.save();
+ this.ctx.transform.apply(this.ctx, this.compositeCtx.mozCurrentTransform);
+ }
+ this.ctx.save();
+ resetCtxToDefault(this.ctx);
+ if (transform) {
+ this.ctx.transform.apply(this.ctx, transform);
+ }
+ this.ctx.transform.apply(this.ctx, viewport.transform);
+ this.baseTransform = this.ctx.mozCurrentTransform.slice();
+ if (this.imageLayer) {
+ this.imageLayer.beginLayout();
+ }
+ },
+
+ executeOperatorList: function CanvasGraphics_executeOperatorList(operatorList, executionStartIdx, continueCallback, stepper) {
+ var argsArray = operatorList.argsArray;
+ var fnArray = operatorList.fnArray;
+ var i = executionStartIdx || 0;
+ var argsArrayLen = argsArray.length;
+ if (argsArrayLen === i) {
+ return i;
+ }
+ var chunkOperations = argsArrayLen - i > EXECUTION_STEPS && typeof continueCallback === 'function';
+ var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
+ var steps = 0;
+ var commonObjs = this.commonObjs;
+ var objs = this.objs;
+ var fnId;
+ while (true) {
+ if (stepper !== undefined && i === stepper.nextBreakPoint) {
+ stepper.breakIt(i, continueCallback);
+ return i;
+ }
+ fnId = fnArray[i];
+ if (fnId !== _util.OPS.dependency) {
+ this[fnId].apply(this, argsArray[i]);
+ } else {
+ var deps = argsArray[i];
+ for (var n = 0, nn = deps.length; n < nn; n++) {
+ var depObjId = deps[n];
+ var common = depObjId[0] === 'g' && depObjId[1] === '_';
+ var objsPool = common ? commonObjs : objs;
+ if (!objsPool.isResolved(depObjId)) {
+ objsPool.get(depObjId, continueCallback);
+ return i;
+ }
+ }
+ }
+ i++;
+ if (i === argsArrayLen) {
+ return i;
+ }
+ if (chunkOperations && ++steps > EXECUTION_STEPS) {
+ if (Date.now() > endTime) {
+ continueCallback();
+ return i;
+ }
+ steps = 0;
+ }
+ }
+ },
+ endDrawing: function CanvasGraphics_endDrawing() {
+ if (this.current.activeSMask !== null) {
+ this.endSMaskGroup();
+ }
+ this.ctx.restore();
+ if (this.transparentCanvas) {
+ this.ctx = this.compositeCtx;
+ this.ctx.save();
+ this.ctx.setTransform(1, 0, 0, 1, 0, 0);
+ this.ctx.drawImage(this.transparentCanvas, 0, 0);
+ this.ctx.restore();
+ this.transparentCanvas = null;
+ }
+ this.cachedCanvases.clear();
+ _webgl.WebGLUtils.clear();
+ if (this.imageLayer) {
+ this.imageLayer.endLayout();
+ }
+ },
+ setLineWidth: function CanvasGraphics_setLineWidth(width) {
+ this.current.lineWidth = width;
+ this.ctx.lineWidth = width;
+ },
+ setLineCap: function CanvasGraphics_setLineCap(style) {
+ this.ctx.lineCap = LINE_CAP_STYLES[style];
+ },
+ setLineJoin: function CanvasGraphics_setLineJoin(style) {
+ this.ctx.lineJoin = LINE_JOIN_STYLES[style];
+ },
+ setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
+ this.ctx.miterLimit = limit;
+ },
+ setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
+ var ctx = this.ctx;
+ if (ctx.setLineDash !== undefined) {
+ ctx.setLineDash(dashArray);
+ ctx.lineDashOffset = dashPhase;
+ }
+ },
+ setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) {},
+ setFlatness: function CanvasGraphics_setFlatness(flatness) {},
+ setGState: function CanvasGraphics_setGState(states) {
+ for (var i = 0, ii = states.length; i < ii; i++) {
+ var state = states[i];
+ var key = state[0];
+ var value = state[1];
+ switch (key) {
+ case 'LW':
+ this.setLineWidth(value);
+ break;
+ case 'LC':
+ this.setLineCap(value);
+ break;
+ case 'LJ':
+ this.setLineJoin(value);
+ break;
+ case 'ML':
+ this.setMiterLimit(value);
+ break;
+ case 'D':
+ this.setDash(value[0], value[1]);
+ break;
+ case 'RI':
+ this.setRenderingIntent(value);
+ break;
+ case 'FL':
+ this.setFlatness(value);
+ break;
+ case 'Font':
+ this.setFont(value[0], value[1]);
+ break;
+ case 'CA':
+ this.current.strokeAlpha = state[1];
+ break;
+ case 'ca':
+ this.current.fillAlpha = state[1];
+ this.ctx.globalAlpha = state[1];
+ break;
+ case 'BM':
+ this.ctx.globalCompositeOperation = value;
+ break;
+ case 'SMask':
+ if (this.current.activeSMask) {
+ if (this.stateStack.length > 0 && this.stateStack[this.stateStack.length - 1].activeSMask === this.current.activeSMask) {
+ this.suspendSMaskGroup();
+ } else {
+ this.endSMaskGroup();
+ }
+ }
+ this.current.activeSMask = value ? this.tempSMask : null;
+ if (this.current.activeSMask) {
+ this.beginSMaskGroup();
+ }
+ this.tempSMask = null;
+ break;
+ }
+ }
+ },
+ beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
+ var activeSMask = this.current.activeSMask;
+ var drawnWidth = activeSMask.canvas.width;
+ var drawnHeight = activeSMask.canvas.height;
+ var cacheId = 'smaskGroupAt' + this.groupLevel;
+ var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
+ var currentCtx = this.ctx;
+ var currentTransform = currentCtx.mozCurrentTransform;
+ this.ctx.save();
+ var groupCtx = scratchCanvas.context;
+ groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
+ groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
+ groupCtx.transform.apply(groupCtx, currentTransform);
+ activeSMask.startTransformInverse = groupCtx.mozCurrentTransformInverse;
+ copyCtxState(currentCtx, groupCtx);
+ this.ctx = groupCtx;
+ this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
+ this.groupStack.push(currentCtx);
+ this.groupLevel++;
+ },
+ suspendSMaskGroup: function CanvasGraphics_endSMaskGroup() {
+ var groupCtx = this.ctx;
+ this.groupLevel--;
+ this.ctx = this.groupStack.pop();
+ composeSMask(this.ctx, this.current.activeSMask, groupCtx);
+ this.ctx.restore();
+ this.ctx.save();
+ copyCtxState(groupCtx, this.ctx);
+ this.current.resumeSMaskCtx = groupCtx;
+ var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);
+ this.ctx.transform.apply(this.ctx, deltaTransform);
+ groupCtx.save();
+ groupCtx.setTransform(1, 0, 0, 1, 0, 0);
+ groupCtx.clearRect(0, 0, groupCtx.canvas.width, groupCtx.canvas.height);
+ groupCtx.restore();
+ },
+ resumeSMaskGroup: function CanvasGraphics_endSMaskGroup() {
+ var groupCtx = this.current.resumeSMaskCtx;
+ var currentCtx = this.ctx;
+ this.ctx = groupCtx;
+ this.groupStack.push(currentCtx);
+ this.groupLevel++;
+ },
+ endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
+ var groupCtx = this.ctx;
+ this.groupLevel--;
+ this.ctx = this.groupStack.pop();
+ composeSMask(this.ctx, this.current.activeSMask, groupCtx);
+ this.ctx.restore();
+ copyCtxState(groupCtx, this.ctx);
+ var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);
+ this.ctx.transform.apply(this.ctx, deltaTransform);
+ },
+ save: function CanvasGraphics_save() {
+ this.ctx.save();
+ var old = this.current;
+ this.stateStack.push(old);
+ this.current = old.clone();
+ this.current.resumeSMaskCtx = null;
+ },
+ restore: function CanvasGraphics_restore() {
+ if (this.current.resumeSMaskCtx) {
+ this.resumeSMaskGroup();
+ }
+ if (this.current.activeSMask !== null && (this.stateStack.length === 0 || this.stateStack[this.stateStack.length - 1].activeSMask !== this.current.activeSMask)) {
+ this.endSMaskGroup();
+ }
+ if (this.stateStack.length !== 0) {
+ this.current = this.stateStack.pop();
+ this.ctx.restore();
+ this.pendingClip = null;
+ this.cachedGetSinglePixelWidth = null;
+ }
+ },
+ transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
+ this.ctx.transform(a, b, c, d, e, f);
+ this.cachedGetSinglePixelWidth = null;
+ },
+ constructPath: function CanvasGraphics_constructPath(ops, args) {
+ var ctx = this.ctx;
+ var current = this.current;
+ var x = current.x,
+ y = current.y;
+ for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
+ switch (ops[i] | 0) {
+ case _util.OPS.rectangle:
+ x = args[j++];
+ y = args[j++];
+ var width = args[j++];
+ var height = args[j++];
+ if (width === 0) {
+ width = this.getSinglePixelWidth();
+ }
+ if (height === 0) {
+ height = this.getSinglePixelWidth();
+ }
+ var xw = x + width;
+ var yh = y + height;
+ this.ctx.moveTo(x, y);
+ this.ctx.lineTo(xw, y);
+ this.ctx.lineTo(xw, yh);
+ this.ctx.lineTo(x, yh);
+ this.ctx.lineTo(x, y);
+ this.ctx.closePath();
+ break;
+ case _util.OPS.moveTo:
+ x = args[j++];
+ y = args[j++];
+ ctx.moveTo(x, y);
+ break;
+ case _util.OPS.lineTo:
+ x = args[j++];
+ y = args[j++];
+ ctx.lineTo(x, y);
+ break;
+ case _util.OPS.curveTo:
+ x = args[j + 4];
+ y = args[j + 5];
+ ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
+ j += 6;
+ break;
+ case _util.OPS.curveTo2:
+ ctx.bezierCurveTo(x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
+ x = args[j + 2];
+ y = args[j + 3];
+ j += 4;
+ break;
+ case _util.OPS.curveTo3:
+ x = args[j + 2];
+ y = args[j + 3];
+ ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
+ j += 4;
+ break;
+ case _util.OPS.closePath:
+ ctx.closePath();
+ break;
+ }
+ }
+ current.setCurrentPoint(x, y);
+ },
+ closePath: function CanvasGraphics_closePath() {
+ this.ctx.closePath();
+ },
+ stroke: function CanvasGraphics_stroke(consumePath) {
+ consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
+ var ctx = this.ctx;
+ var strokeColor = this.current.strokeColor;
+ ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth);
+ ctx.globalAlpha = this.current.strokeAlpha;
+ if (strokeColor && strokeColor.hasOwnProperty('type') && strokeColor.type === 'Pattern') {
+ ctx.save();
+ ctx.strokeStyle = strokeColor.getPattern(ctx, this);
+ ctx.stroke();
+ ctx.restore();
+ } else {
+ ctx.stroke();
+ }
+ if (consumePath) {
+ this.consumePath();
+ }
+ ctx.globalAlpha = this.current.fillAlpha;
+ },
+ closeStroke: function CanvasGraphics_closeStroke() {
+ this.closePath();
+ this.stroke();
+ },
+ fill: function CanvasGraphics_fill(consumePath) {
+ consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
+ var ctx = this.ctx;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ var needRestore = false;
+ if (isPatternFill) {
+ ctx.save();
+ if (this.baseTransform) {
+ ctx.setTransform.apply(ctx, this.baseTransform);
+ }
+ ctx.fillStyle = fillColor.getPattern(ctx, this);
+ needRestore = true;
+ }
+ if (this.pendingEOFill) {
+ ctx.fill('evenodd');
+ this.pendingEOFill = false;
+ } else {
+ ctx.fill();
+ }
+ if (needRestore) {
+ ctx.restore();
+ }
+ if (consumePath) {
+ this.consumePath();
+ }
+ },
+ eoFill: function CanvasGraphics_eoFill() {
+ this.pendingEOFill = true;
+ this.fill();
+ },
+ fillStroke: function CanvasGraphics_fillStroke() {
+ this.fill(false);
+ this.stroke(false);
+ this.consumePath();
+ },
+ eoFillStroke: function CanvasGraphics_eoFillStroke() {
+ this.pendingEOFill = true;
+ this.fillStroke();
+ },
+ closeFillStroke: function CanvasGraphics_closeFillStroke() {
+ this.closePath();
+ this.fillStroke();
+ },
+ closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
+ this.pendingEOFill = true;
+ this.closePath();
+ this.fillStroke();
+ },
+ endPath: function CanvasGraphics_endPath() {
+ this.consumePath();
+ },
+ clip: function CanvasGraphics_clip() {
+ this.pendingClip = NORMAL_CLIP;
+ },
+ eoClip: function CanvasGraphics_eoClip() {
+ this.pendingClip = EO_CLIP;
+ },
+ beginText: function CanvasGraphics_beginText() {
+ this.current.textMatrix = _util.IDENTITY_MATRIX;
+ this.current.textMatrixScale = 1;
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ },
+ endText: function CanvasGraphics_endText() {
+ var paths = this.pendingTextPaths;
+ var ctx = this.ctx;
+ if (paths === undefined) {
+ ctx.beginPath();
+ return;
+ }
+ ctx.save();
+ ctx.beginPath();
+ for (var i = 0; i < paths.length; i++) {
+ var path = paths[i];
+ ctx.setTransform.apply(ctx, path.transform);
+ ctx.translate(path.x, path.y);
+ path.addToPath(ctx, path.fontSize);
+ }
+ ctx.restore();
+ ctx.clip();
+ ctx.beginPath();
+ delete this.pendingTextPaths;
+ },
+ setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
+ this.current.charSpacing = spacing;
+ },
+ setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
+ this.current.wordSpacing = spacing;
+ },
+ setHScale: function CanvasGraphics_setHScale(scale) {
+ this.current.textHScale = scale / 100;
+ },
+ setLeading: function CanvasGraphics_setLeading(leading) {
+ this.current.leading = -leading;
+ },
+ setFont: function CanvasGraphics_setFont(fontRefName, size) {
+ var fontObj = this.commonObjs.get(fontRefName);
+ var current = this.current;
+ if (!fontObj) {
+ throw new Error('Can\'t find font for ' + fontRefName);
+ }
+ current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
+ if (current.fontMatrix[0] === 0 || current.fontMatrix[3] === 0) {
+ (0, _util.warn)('Invalid font matrix for font ' + fontRefName);
+ }
+ if (size < 0) {
+ size = -size;
+ current.fontDirection = -1;
+ } else {
+ current.fontDirection = 1;
+ }
+ this.current.font = fontObj;
+ this.current.fontSize = size;
+ if (fontObj.isType3Font) {
+ return;
+ }
+ var name = fontObj.loadedName || 'sans-serif';
+ var bold = fontObj.black ? '900' : fontObj.bold ? 'bold' : 'normal';
+ var italic = fontObj.italic ? 'italic' : 'normal';
+ var typeface = '"' + name + '", ' + fontObj.fallbackName;
+ var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size;
+ this.current.fontSizeScale = size / browserFontSize;
+ var rule = italic + ' ' + bold + ' ' + browserFontSize + 'px ' + typeface;
+ this.ctx.font = rule;
+ },
+ setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
+ this.current.textRenderingMode = mode;
+ },
+ setTextRise: function CanvasGraphics_setTextRise(rise) {
+ this.current.textRise = rise;
+ },
+ moveText: function CanvasGraphics_moveText(x, y) {
+ this.current.x = this.current.lineX += x;
+ this.current.y = this.current.lineY += y;
+ },
+ setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
+ this.setLeading(-y);
+ this.moveText(x, y);
+ },
+ setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
+ this.current.textMatrix = [a, b, c, d, e, f];
+ this.current.textMatrixScale = Math.sqrt(a * a + b * b);
+ this.current.x = this.current.lineX = 0;
+ this.current.y = this.current.lineY = 0;
+ },
+ nextLine: function CanvasGraphics_nextLine() {
+ this.moveText(0, this.current.leading);
+ },
+ paintChar: function CanvasGraphics_paintChar(character, x, y) {
+ var ctx = this.ctx;
+ var current = this.current;
+ var font = current.font;
+ var textRenderingMode = current.textRenderingMode;
+ var fontSize = current.fontSize / current.fontSizeScale;
+ var fillStrokeMode = textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
+ var isAddToPathSet = !!(textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG);
+ var addToPath;
+ if (font.disableFontFace || isAddToPathSet) {
+ addToPath = font.getPathGenerator(this.commonObjs, character);
+ }
+ if (font.disableFontFace) {
+ ctx.save();
+ ctx.translate(x, y);
+ ctx.beginPath();
+ addToPath(ctx, fontSize);
+ if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
+ ctx.fill();
+ }
+ if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
+ ctx.stroke();
+ }
+ ctx.restore();
+ } else {
+ if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
+ ctx.fillText(character, x, y);
+ }
+ if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
+ ctx.strokeText(character, x, y);
+ }
+ }
+ if (isAddToPathSet) {
+ var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
+ paths.push({
+ transform: ctx.mozCurrentTransform,
+ x: x,
+ y: y,
+ fontSize: fontSize,
+ addToPath: addToPath
+ });
+ }
+ },
+ get isFontSubpixelAAEnabled() {
+ var ctx = this.canvasFactory.create(10, 10).context;
+ ctx.scale(1.5, 1);
+ ctx.fillText('I', 0, 10);
+ var data = ctx.getImageData(0, 0, 10, 10).data;
+ var enabled = false;
+ for (var i = 3; i < data.length; i += 4) {
+ if (data[i] > 0 && data[i] < 255) {
+ enabled = true;
+ break;
+ }
+ }
+ return (0, _util.shadow)(this, 'isFontSubpixelAAEnabled', enabled);
+ },
+ showText: function CanvasGraphics_showText(glyphs) {
+ var current = this.current;
+ var font = current.font;
+ if (font.isType3Font) {
+ return this.showType3Text(glyphs);
+ }
+ var fontSize = current.fontSize;
+ if (fontSize === 0) {
+ return;
+ }
+ var ctx = this.ctx;
+ var fontSizeScale = current.fontSizeScale;
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var fontDirection = current.fontDirection;
+ var textHScale = current.textHScale * fontDirection;
+ var glyphsLength = glyphs.length;
+ var vertical = font.vertical;
+ var spacingDir = vertical ? 1 : -1;
+ var defaultVMetrics = font.defaultVMetrics;
+ var widthAdvanceScale = fontSize * current.fontMatrix[0];
+ var simpleFillText = current.textRenderingMode === _util.TextRenderingMode.FILL && !font.disableFontFace;
+ ctx.save();
+ ctx.transform.apply(ctx, current.textMatrix);
+ ctx.translate(current.x, current.y + current.textRise);
+ if (current.patternFill) {
+ ctx.fillStyle = current.fillColor.getPattern(ctx, this);
+ }
+ if (fontDirection > 0) {
+ ctx.scale(textHScale, -1);
+ } else {
+ ctx.scale(textHScale, 1);
+ }
+ var lineWidth = current.lineWidth;
+ var scale = current.textMatrixScale;
+ if (scale === 0 || lineWidth === 0) {
+ var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
+ if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
+ this.cachedGetSinglePixelWidth = null;
+ lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
+ }
+ } else {
+ lineWidth /= scale;
+ }
+ if (fontSizeScale !== 1.0) {
+ ctx.scale(fontSizeScale, fontSizeScale);
+ lineWidth /= fontSizeScale;
+ }
+ ctx.lineWidth = lineWidth;
+ var x = 0,
+ i;
+ for (i = 0; i < glyphsLength; ++i) {
+ var glyph = glyphs[i];
+ if ((0, _util.isNum)(glyph)) {
+ x += spacingDir * glyph * fontSize / 1000;
+ continue;
+ }
+ var restoreNeeded = false;
+ var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
+ var character = glyph.fontChar;
+ var accent = glyph.accent;
+ var scaledX, scaledY, scaledAccentX, scaledAccentY;
+ var width = glyph.width;
+ if (vertical) {
+ var vmetric, vx, vy;
+ vmetric = glyph.vmetric || defaultVMetrics;
+ vx = glyph.vmetric ? vmetric[1] : width * 0.5;
+ vx = -vx * widthAdvanceScale;
+ vy = vmetric[2] * widthAdvanceScale;
+ width = vmetric ? -vmetric[0] : width;
+ scaledX = vx / fontSizeScale;
+ scaledY = (x + vy) / fontSizeScale;
+ } else {
+ scaledX = x / fontSizeScale;
+ scaledY = 0;
+ }
+ if (font.remeasure && width > 0) {
+ var measuredWidth = ctx.measureText(character).width * 1000 / fontSize * fontSizeScale;
+ if (width < measuredWidth && this.isFontSubpixelAAEnabled) {
+ var characterScaleX = width / measuredWidth;
+ restoreNeeded = true;
+ ctx.save();
+ ctx.scale(characterScaleX, 1);
+ scaledX /= characterScaleX;
+ } else if (width !== measuredWidth) {
+ scaledX += (width - measuredWidth) / 2000 * fontSize / fontSizeScale;
+ }
+ }
+ if (glyph.isInFont || font.missingFile) {
+ if (simpleFillText && !accent) {
+ ctx.fillText(character, scaledX, scaledY);
+ } else {
+ this.paintChar(character, scaledX, scaledY);
+ if (accent) {
+ scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
+ scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
+ this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY);
+ }
+ }
+ }
+ var charWidth = width * widthAdvanceScale + spacing * fontDirection;
+ x += charWidth;
+ if (restoreNeeded) {
+ ctx.restore();
+ }
+ }
+ if (vertical) {
+ current.y -= x * textHScale;
+ } else {
+ current.x += x * textHScale;
+ }
+ ctx.restore();
+ },
+ showType3Text: function CanvasGraphics_showType3Text(glyphs) {
+ var ctx = this.ctx;
+ var current = this.current;
+ var font = current.font;
+ var fontSize = current.fontSize;
+ var fontDirection = current.fontDirection;
+ var spacingDir = font.vertical ? 1 : -1;
+ var charSpacing = current.charSpacing;
+ var wordSpacing = current.wordSpacing;
+ var textHScale = current.textHScale * fontDirection;
+ var fontMatrix = current.fontMatrix || _util.FONT_IDENTITY_MATRIX;
+ var glyphsLength = glyphs.length;
+ var isTextInvisible = current.textRenderingMode === _util.TextRenderingMode.INVISIBLE;
+ var i, glyph, width, spacingLength;
+ if (isTextInvisible || fontSize === 0) {
+ return;
+ }
+ this.cachedGetSinglePixelWidth = null;
+ ctx.save();
+ ctx.transform.apply(ctx, current.textMatrix);
+ ctx.translate(current.x, current.y);
+ ctx.scale(textHScale, fontDirection);
+ for (i = 0; i < glyphsLength; ++i) {
+ glyph = glyphs[i];
+ if ((0, _util.isNum)(glyph)) {
+ spacingLength = spacingDir * glyph * fontSize / 1000;
+ this.ctx.translate(spacingLength, 0);
+ current.x += spacingLength * textHScale;
+ continue;
+ }
+ var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
+ var operatorList = font.charProcOperatorList[glyph.operatorListId];
+ if (!operatorList) {
+ (0, _util.warn)('Type3 character "' + glyph.operatorListId + '" is not available.');
+ continue;
+ }
+ this.processingType3 = glyph;
+ this.save();
+ ctx.scale(fontSize, fontSize);
+ ctx.transform.apply(ctx, fontMatrix);
+ this.executeOperatorList(operatorList);
+ this.restore();
+ var transformed = _util.Util.applyTransform([glyph.width, 0], fontMatrix);
+ width = transformed[0] * fontSize + spacing;
+ ctx.translate(width, 0);
+ current.x += width * textHScale;
+ }
+ ctx.restore();
+ this.processingType3 = null;
+ },
+ setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {},
+ setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, yWidth, llx, lly, urx, ury) {
+ this.ctx.rect(llx, lly, urx - llx, ury - lly);
+ this.clip();
+ this.endPath();
+ },
+ getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
+ var _this = this;
+
+ var pattern;
+ if (IR[0] === 'TilingPattern') {
+ var color = IR[1];
+ var baseTransform = this.baseTransform || this.ctx.mozCurrentTransform.slice();
+ var canvasGraphicsFactory = {
+ createCanvasGraphics: function createCanvasGraphics(ctx) {
+ return new CanvasGraphics(ctx, _this.commonObjs, _this.objs, _this.canvasFactory);
+ }
+ };
+ pattern = new _pattern_helper.TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, baseTransform);
+ } else {
+ pattern = (0, _pattern_helper.getShadingPatternFromIR)(IR);
+ }
+ return pattern;
+ },
+ setStrokeColorN: function CanvasGraphics_setStrokeColorN() {
+ this.current.strokeColor = this.getColorN_Pattern(arguments);
+ },
+ setFillColorN: function CanvasGraphics_setFillColorN() {
+ this.current.fillColor = this.getColorN_Pattern(arguments);
+ this.current.patternFill = true;
+ },
+ setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
+ var color = _util.Util.makeCssRgb(r, g, b);
+ this.ctx.strokeStyle = color;
+ this.current.strokeColor = color;
+ },
+ setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
+ var color = _util.Util.makeCssRgb(r, g, b);
+ this.ctx.fillStyle = color;
+ this.current.fillColor = color;
+ this.current.patternFill = false;
+ },
+ shadingFill: function CanvasGraphics_shadingFill(patternIR) {
+ var ctx = this.ctx;
+ this.save();
+ var pattern = (0, _pattern_helper.getShadingPatternFromIR)(patternIR);
+ ctx.fillStyle = pattern.getPattern(ctx, this, true);
+ var inv = ctx.mozCurrentTransformInverse;
+ if (inv) {
+ var canvas = ctx.canvas;
+ var width = canvas.width;
+ var height = canvas.height;
+ var bl = _util.Util.applyTransform([0, 0], inv);
+ var br = _util.Util.applyTransform([0, height], inv);
+ var ul = _util.Util.applyTransform([width, 0], inv);
+ var ur = _util.Util.applyTransform([width, height], inv);
+ var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
+ var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
+ var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
+ var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
+ this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
+ } else {
+ this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
+ }
+ this.restore();
+ },
+ beginInlineImage: function CanvasGraphics_beginInlineImage() {
+ throw new Error('Should not call beginInlineImage');
+ },
+ beginImageData: function CanvasGraphics_beginImageData() {
+ throw new Error('Should not call beginImageData');
+ },
+ paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, bbox) {
+ this.save();
+ this.baseTransformStack.push(this.baseTransform);
+ if ((0, _util.isArray)(matrix) && matrix.length === 6) {
+ this.transform.apply(this, matrix);
+ }
+ this.baseTransform = this.ctx.mozCurrentTransform;
+ if ((0, _util.isArray)(bbox) && bbox.length === 4) {
+ var width = bbox[2] - bbox[0];
+ var height = bbox[3] - bbox[1];
+ this.ctx.rect(bbox[0], bbox[1], width, height);
+ this.clip();
+ this.endPath();
+ }
+ },
+ paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
+ this.restore();
+ this.baseTransform = this.baseTransformStack.pop();
+ },
+ beginGroup: function CanvasGraphics_beginGroup(group) {
+ this.save();
+ var currentCtx = this.ctx;
+ if (!group.isolated) {
+ (0, _util.info)('TODO: Support non-isolated groups.');
+ }
+ if (group.knockout) {
+ (0, _util.warn)('Knockout groups not supported.');
+ }
+ var currentTransform = currentCtx.mozCurrentTransform;
+ if (group.matrix) {
+ currentCtx.transform.apply(currentCtx, group.matrix);
+ }
+ if (!group.bbox) {
+ throw new Error('Bounding box is required.');
+ }
+ var bounds = _util.Util.getAxialAlignedBoundingBox(group.bbox, currentCtx.mozCurrentTransform);
+ var canvasBounds = [0, 0, currentCtx.canvas.width, currentCtx.canvas.height];
+ bounds = _util.Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
+ var offsetX = Math.floor(bounds[0]);
+ var offsetY = Math.floor(bounds[1]);
+ var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
+ var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
+ var scaleX = 1,
+ scaleY = 1;
+ if (drawnWidth > MAX_GROUP_SIZE) {
+ scaleX = drawnWidth / MAX_GROUP_SIZE;
+ drawnWidth = MAX_GROUP_SIZE;
+ }
+ if (drawnHeight > MAX_GROUP_SIZE) {
+ scaleY = drawnHeight / MAX_GROUP_SIZE;
+ drawnHeight = MAX_GROUP_SIZE;
+ }
+ var cacheId = 'groupAt' + this.groupLevel;
+ if (group.smask) {
+ cacheId += '_smask_' + this.smaskCounter++ % 2;
+ }
+ var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
+ var groupCtx = scratchCanvas.context;
+ groupCtx.scale(1 / scaleX, 1 / scaleY);
+ groupCtx.translate(-offsetX, -offsetY);
+ groupCtx.transform.apply(groupCtx, currentTransform);
+ if (group.smask) {
+ this.smaskStack.push({
+ canvas: scratchCanvas.canvas,
+ context: groupCtx,
+ offsetX: offsetX,
+ offsetY: offsetY,
+ scaleX: scaleX,
+ scaleY: scaleY,
+ subtype: group.smask.subtype,
+ backdrop: group.smask.backdrop,
+ transferMap: group.smask.transferMap || null,
+ startTransformInverse: null
+ });
+ } else {
+ currentCtx.setTransform(1, 0, 0, 1, 0, 0);
+ currentCtx.translate(offsetX, offsetY);
+ currentCtx.scale(scaleX, scaleY);
+ }
+ copyCtxState(currentCtx, groupCtx);
+ this.ctx = groupCtx;
+ this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
+ this.groupStack.push(currentCtx);
+ this.groupLevel++;
+ this.current.activeSMask = null;
+ },
+ endGroup: function CanvasGraphics_endGroup(group) {
+ this.groupLevel--;
+ var groupCtx = this.ctx;
+ this.ctx = this.groupStack.pop();
+ if (this.ctx.imageSmoothingEnabled !== undefined) {
+ this.ctx.imageSmoothingEnabled = false;
+ } else {
+ this.ctx.mozImageSmoothingEnabled = false;
+ }
+ if (group.smask) {
+ this.tempSMask = this.smaskStack.pop();
+ } else {
+ this.ctx.drawImage(groupCtx.canvas, 0, 0);
+ }
+ this.restore();
+ },
+ beginAnnotations: function CanvasGraphics_beginAnnotations() {
+ this.save();
+ if (this.baseTransform) {
+ this.ctx.setTransform.apply(this.ctx, this.baseTransform);
+ }
+ },
+ endAnnotations: function CanvasGraphics_endAnnotations() {
+ this.restore();
+ },
+ beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, matrix) {
+ this.save();
+ resetCtxToDefault(this.ctx);
+ this.current = new CanvasExtraState();
+ if ((0, _util.isArray)(rect) && rect.length === 4) {
+ var width = rect[2] - rect[0];
+ var height = rect[3] - rect[1];
+ this.ctx.rect(rect[0], rect[1], width, height);
+ this.clip();
+ this.endPath();
+ }
+ this.transform.apply(this, transform);
+ this.transform.apply(this, matrix);
+ },
+ endAnnotation: function CanvasGraphics_endAnnotation() {
+ this.restore();
+ },
+ paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
+ var domImage = this.objs.get(objId);
+ if (!domImage) {
+ (0, _util.warn)('Dependent image isn\'t ready yet');
+ return;
+ }
+ this.save();
+ var ctx = this.ctx;
+ ctx.scale(1 / w, -1 / h);
+ ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, 0, -h, w, h);
+ if (this.imageLayer) {
+ var currentTransform = ctx.mozCurrentTransformInverse;
+ var position = this.getCanvasPosition(0, 0);
+ this.imageLayer.appendImage({
+ objId: objId,
+ left: position[0],
+ top: position[1],
+ width: w / currentTransform[0],
+ height: h / currentTransform[3]
+ });
+ }
+ this.restore();
+ },
+ paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
+ var ctx = this.ctx;
+ var width = img.width,
+ height = img.height;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ var glyph = this.processingType3;
+ if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
+ if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
+ glyph.compiled = compileType3Glyph({
+ data: img.data,
+ width: width,
+ height: height
+ });
+ } else {
+ glyph.compiled = null;
+ }
+ }
+ if (glyph && glyph.compiled) {
+ glyph.compiled(ctx);
+ return;
+ }
+ var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+ putBinaryImageMask(maskCtx, img);
+ maskCtx.globalCompositeOperation = 'source-in';
+ maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+ maskCtx.restore();
+ this.paintInlineImageXObject(maskCanvas.canvas);
+ },
+ paintImageMaskXObjectRepeat: function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, scaleY, positions) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+ putBinaryImageMask(maskCtx, imgData);
+ maskCtx.globalCompositeOperation = 'source-in';
+ maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+ maskCtx.restore();
+ var ctx = this.ctx;
+ for (var i = 0, ii = positions.length; i < ii; i += 2) {
+ ctx.save();
+ ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
+ ctx.scale(1, -1);
+ ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
+ ctx.restore();
+ }
+ },
+ paintImageMaskXObjectGroup: function CanvasGraphics_paintImageMaskXObjectGroup(images) {
+ var ctx = this.ctx;
+ var fillColor = this.current.fillColor;
+ var isPatternFill = this.current.patternFill;
+ for (var i = 0, ii = images.length; i < ii; i++) {
+ var image = images[i];
+ var width = image.width,
+ height = image.height;
+ var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
+ var maskCtx = maskCanvas.context;
+ maskCtx.save();
+ putBinaryImageMask(maskCtx, image);
+ maskCtx.globalCompositeOperation = 'source-in';
+ maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
+ maskCtx.fillRect(0, 0, width, height);
+ maskCtx.restore();
+ ctx.save();
+ ctx.transform.apply(ctx, image.transform);
+ ctx.scale(1, -1);
+ ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
+ ctx.restore();
+ }
+ },
+ paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ (0, _util.warn)('Dependent image isn\'t ready yet');
+ return;
+ }
+ this.paintInlineImageXObject(imgData);
+ },
+ paintImageXObjectRepeat: function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, positions) {
+ var imgData = this.objs.get(objId);
+ if (!imgData) {
+ (0, _util.warn)('Dependent image isn\'t ready yet');
+ return;
+ }
+ var width = imgData.width;
+ var height = imgData.height;
+ var map = [];
+ for (var i = 0, ii = positions.length; i < ii; i += 2) {
+ map.push({
+ transform: [scaleX, 0, 0, scaleY, positions[i], positions[i + 1]],
+ x: 0,
+ y: 0,
+ w: width,
+ h: height
+ });
+ }
+ this.paintInlineImageXObjectGroup(imgData, map);
+ },
+ paintInlineImageXObject: function CanvasGraphics_paintInlineImageXObject(imgData) {
+ var width = imgData.width;
+ var height = imgData.height;
+ var ctx = this.ctx;
+ this.save();
+ ctx.scale(1 / width, -1 / height);
+ var currentTransform = ctx.mozCurrentTransformInverse;
+ var a = currentTransform[0],
+ b = currentTransform[1];
+ var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
+ var c = currentTransform[2],
+ d = currentTransform[3];
+ var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
+ var imgToPaint, tmpCanvas;
+ if (imgData instanceof HTMLElement || !imgData.data) {
+ imgToPaint = imgData;
+ } else {
+ tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', width, height);
+ var tmpCtx = tmpCanvas.context;
+ putBinaryImageData(tmpCtx, imgData);
+ imgToPaint = tmpCanvas.canvas;
+ }
+ var paintWidth = width,
+ paintHeight = height;
+ var tmpCanvasId = 'prescale1';
+ while (widthScale > 2 && paintWidth > 1 || heightScale > 2 && paintHeight > 1) {
+ var newWidth = paintWidth,
+ newHeight = paintHeight;
+ if (widthScale > 2 && paintWidth > 1) {
+ newWidth = Math.ceil(paintWidth / 2);
+ widthScale /= paintWidth / newWidth;
+ }
+ if (heightScale > 2 && paintHeight > 1) {
+ newHeight = Math.ceil(paintHeight / 2);
+ heightScale /= paintHeight / newHeight;
+ }
+ tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
+ tmpCtx = tmpCanvas.context;
+ tmpCtx.clearRect(0, 0, newWidth, newHeight);
+ tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, 0, newWidth, newHeight);
+ imgToPaint = tmpCanvas.canvas;
+ paintWidth = newWidth;
+ paintHeight = newHeight;
+ tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1';
+ }
+ ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, -height, width, height);
+ if (this.imageLayer) {
+ var position = this.getCanvasPosition(0, -height);
+ this.imageLayer.appendImage({
+ imgData: imgData,
+ left: position[0],
+ top: position[1],
+ width: width / currentTransform[0],
+ height: height / currentTransform[3]
+ });
+ }
+ this.restore();
+ },
+ paintInlineImageXObjectGroup: function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
+ var ctx = this.ctx;
+ var w = imgData.width;
+ var h = imgData.height;
+ var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h);
+ var tmpCtx = tmpCanvas.context;
+ putBinaryImageData(tmpCtx, imgData);
+ for (var i = 0, ii = map.length; i < ii; i++) {
+ var entry = map[i];
+ ctx.save();
+ ctx.transform.apply(ctx, entry.transform);
+ ctx.scale(1, -1);
+ ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, 0, -1, 1, 1);
+ if (this.imageLayer) {
+ var position = this.getCanvasPosition(entry.x, entry.y);
+ this.imageLayer.appendImage({
+ imgData: imgData,
+ left: position[0],
+ top: position[1],
+ width: w,
+ height: h
+ });
+ }
+ ctx.restore();
+ }
+ },
+ paintSolidColorImageMask: function CanvasGraphics_paintSolidColorImageMask() {
+ this.ctx.fillRect(0, 0, 1, 1);
+ },
+ paintXObject: function CanvasGraphics_paintXObject() {
+ (0, _util.warn)('Unsupported \'paintXObject\' command.');
+ },
+ markPoint: function CanvasGraphics_markPoint(tag) {},
+ markPointProps: function CanvasGraphics_markPointProps(tag, properties) {},
+ beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {},
+ beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(tag, properties) {},
+ endMarkedContent: function CanvasGraphics_endMarkedContent() {},
+ beginCompat: function CanvasGraphics_beginCompat() {},
+ endCompat: function CanvasGraphics_endCompat() {},
+ consumePath: function CanvasGraphics_consumePath() {
+ var ctx = this.ctx;
+ if (this.pendingClip) {
+ if (this.pendingClip === EO_CLIP) {
+ ctx.clip('evenodd');
+ } else {
+ ctx.clip();
+ }
+ this.pendingClip = null;
+ }
+ ctx.beginPath();
+ },
+ getSinglePixelWidth: function CanvasGraphics_getSinglePixelWidth(scale) {
+ if (this.cachedGetSinglePixelWidth === null) {
+ this.ctx.save();
+ var inverse = this.ctx.mozCurrentTransformInverse;
+ this.ctx.restore();
+ this.cachedGetSinglePixelWidth = Math.sqrt(Math.max(inverse[0] * inverse[0] + inverse[1] * inverse[1], inverse[2] * inverse[2] + inverse[3] * inverse[3]));
+ }
+ return this.cachedGetSinglePixelWidth;
+ },
+ getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
+ var transform = this.ctx.mozCurrentTransform;
+ return [transform[0] * x + transform[2] * y + transform[4], transform[1] * x + transform[3] * y + transform[5]];
+ }
+ };
+ for (var op in _util.OPS) {
+ CanvasGraphics.prototype[_util.OPS[op]] = CanvasGraphics.prototype[op];
+ }
+ return CanvasGraphics;
+}();
+exports.CanvasGraphics = CanvasGraphics;
+
+/***/ }),
+/* 12 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.FontLoader = exports.FontFaceObject = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+function FontLoader(docId) {
+ this.docId = docId;
+ this.styleElement = null;
+ this.nativeFontFaces = [];
+ this.loadTestFontId = 0;
+ this.loadingContext = {
+ requests: [],
+ nextRequestId: 0
+ };
+}
+FontLoader.prototype = {
+ insertRule: function fontLoaderInsertRule(rule) {
+ var styleElement = this.styleElement;
+ if (!styleElement) {
+ styleElement = this.styleElement = document.createElement('style');
+ styleElement.id = 'PDFJS_FONT_STYLE_TAG_' + this.docId;
+ document.documentElement.getElementsByTagName('head')[0].appendChild(styleElement);
+ }
+ var styleSheet = styleElement.sheet;
+ styleSheet.insertRule(rule, styleSheet.cssRules.length);
+ },
+ clear: function fontLoaderClear() {
+ if (this.styleElement) {
+ this.styleElement.remove();
+ this.styleElement = null;
+ }
+ this.nativeFontFaces.forEach(function (nativeFontFace) {
+ document.fonts.delete(nativeFontFace);
+ });
+ this.nativeFontFaces.length = 0;
+ }
+};
+{
+ var getLoadTestFont = function getLoadTestFont() {
+ return atob('T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQAFQ' + 'AABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAAALwA' + 'AAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgAAAAGbm' + 'FtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1AAsD6AAA' + 'AADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD6AAAAAAD6A' + 'ABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACMAooCvAAAAeAA' + 'MQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4DIP84AFoDIQAAAA' + 'AAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAAAAEAAQAAAAEAAAAA' + 'AAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUAAQAAAAEAAAAAAAYAAQ' + 'AAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgABAAMAAQQJAAMAAgABAAMA' + 'AQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABYAAAAAAAAAwAAAAMAAAAcAA' + 'EAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAAAC7////TAAEAAAAAAAABBgAA' + 'AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAA' + 'AAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAAAAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgc' + 'A/gXBIwMAYuL+nz5tQXkD5j3CBLnEQACAQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWF' + 'hYWFhYWFhYAAABAQAADwACAQEEE/t3Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQA' + 'AAAAAAABAAAAAMmJbzEAAAAAzgTjFQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAg' + 'ABAAAAAAAAAAAD6AAAAAAAAA==');
+ };
+ Object.defineProperty(FontLoader.prototype, 'loadTestFont', {
+ get: function get() {
+ return (0, _util.shadow)(this, 'loadTestFont', getLoadTestFont());
+ },
+
+ configurable: true
+ });
+ FontLoader.prototype.addNativeFontFace = function fontLoader_addNativeFontFace(nativeFontFace) {
+ this.nativeFontFaces.push(nativeFontFace);
+ document.fonts.add(nativeFontFace);
+ };
+ FontLoader.prototype.bind = function fontLoaderBind(fonts, callback) {
+ var rules = [];
+ var fontsToLoad = [];
+ var fontLoadPromises = [];
+ var getNativeFontPromise = function getNativeFontPromise(nativeFontFace) {
+ return nativeFontFace.loaded.catch(function (e) {
+ (0, _util.warn)('Failed to load font "' + nativeFontFace.family + '": ' + e);
+ });
+ };
+ var isFontLoadingAPISupported = FontLoader.isFontLoadingAPISupported && !FontLoader.isSyncFontLoadingSupported;
+ for (var i = 0, ii = fonts.length; i < ii; i++) {
+ var font = fonts[i];
+ if (font.attached || font.loading === false) {
+ continue;
+ }
+ font.attached = true;
+ if (isFontLoadingAPISupported) {
+ var nativeFontFace = font.createNativeFontFace();
+ if (nativeFontFace) {
+ this.addNativeFontFace(nativeFontFace);
+ fontLoadPromises.push(getNativeFontPromise(nativeFontFace));
+ }
+ } else {
+ var rule = font.createFontFaceRule();
+ if (rule) {
+ this.insertRule(rule);
+ rules.push(rule);
+ fontsToLoad.push(font);
+ }
+ }
+ }
+ var request = this.queueLoadingCallback(callback);
+ if (isFontLoadingAPISupported) {
+ Promise.all(fontLoadPromises).then(function () {
+ request.complete();
+ });
+ } else if (rules.length > 0 && !FontLoader.isSyncFontLoadingSupported) {
+ this.prepareFontLoadEvent(rules, fontsToLoad, request);
+ } else {
+ request.complete();
+ }
+ };
+ FontLoader.prototype.queueLoadingCallback = function FontLoader_queueLoadingCallback(callback) {
+ function LoadLoader_completeRequest() {
+ (0, _util.assert)(!request.end, 'completeRequest() cannot be called twice');
+ request.end = Date.now();
+ while (context.requests.length > 0 && context.requests[0].end) {
+ var otherRequest = context.requests.shift();
+ setTimeout(otherRequest.callback, 0);
+ }
+ }
+ var context = this.loadingContext;
+ var requestId = 'pdfjs-font-loading-' + context.nextRequestId++;
+ var request = {
+ id: requestId,
+ complete: LoadLoader_completeRequest,
+ callback: callback,
+ started: Date.now()
+ };
+ context.requests.push(request);
+ return request;
+ };
+ FontLoader.prototype.prepareFontLoadEvent = function fontLoaderPrepareFontLoadEvent(rules, fonts, request) {
+ function int32(data, offset) {
+ return data.charCodeAt(offset) << 24 | data.charCodeAt(offset + 1) << 16 | data.charCodeAt(offset + 2) << 8 | data.charCodeAt(offset + 3) & 0xff;
+ }
+ function spliceString(s, offset, remove, insert) {
+ var chunk1 = s.substr(0, offset);
+ var chunk2 = s.substr(offset + remove);
+ return chunk1 + insert + chunk2;
+ }
+ var i, ii;
+ var canvas = document.createElement('canvas');
+ canvas.width = 1;
+ canvas.height = 1;
+ var ctx = canvas.getContext('2d');
+ var called = 0;
+ function isFontReady(name, callback) {
+ called++;
+ if (called > 30) {
+ (0, _util.warn)('Load test font never loaded.');
+ callback();
+ return;
+ }
+ ctx.font = '30px ' + name;
+ ctx.fillText('.', 0, 20);
+ var imageData = ctx.getImageData(0, 0, 1, 1);
+ if (imageData.data[3] > 0) {
+ callback();
+ return;
+ }
+ setTimeout(isFontReady.bind(null, name, callback));
+ }
+ var loadTestFontId = 'lt' + Date.now() + this.loadTestFontId++;
+ var data = this.loadTestFont;
+ var COMMENT_OFFSET = 976;
+ data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length, loadTestFontId);
+ var CFF_CHECKSUM_OFFSET = 16;
+ var XXXX_VALUE = 0x58585858;
+ var checksum = int32(data, CFF_CHECKSUM_OFFSET);
+ for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
+ checksum = checksum - XXXX_VALUE + int32(loadTestFontId, i) | 0;
+ }
+ if (i < loadTestFontId.length) {
+ checksum = checksum - XXXX_VALUE + int32(loadTestFontId + 'XXX', i) | 0;
+ }
+ data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, (0, _util.string32)(checksum));
+ var url = 'url(data:font/opentype;base64,' + btoa(data) + ');';
+ var rule = '@font-face { font-family:"' + loadTestFontId + '";src:' + url + '}';
+ this.insertRule(rule);
+ var names = [];
+ for (i = 0, ii = fonts.length; i < ii; i++) {
+ names.push(fonts[i].loadedName);
+ }
+ names.push(loadTestFontId);
+ var div = document.createElement('div');
+ div.setAttribute('style', 'visibility: hidden;' + 'width: 10px; height: 10px;' + 'position: absolute; top: 0px; left: 0px;');
+ for (i = 0, ii = names.length; i < ii; ++i) {
+ var span = document.createElement('span');
+ span.textContent = 'Hi';
+ span.style.fontFamily = names[i];
+ div.appendChild(span);
+ }
+ document.body.appendChild(div);
+ isFontReady(loadTestFontId, function () {
+ document.body.removeChild(div);
+ request.complete();
+ });
+ };
+}
+{
+ FontLoader.isFontLoadingAPISupported = typeof document !== 'undefined' && !!document.fonts;
+}
+{
+ var isSyncFontLoadingSupported = function isSyncFontLoadingSupported() {
+ if (typeof navigator === 'undefined') {
+ return true;
+ }
+ var supported = false;
+ var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);
+ if (m && m[1] >= 14) {
+ supported = true;
+ }
+ return supported;
+ };
+ Object.defineProperty(FontLoader, 'isSyncFontLoadingSupported', {
+ get: function get() {
+ return (0, _util.shadow)(FontLoader, 'isSyncFontLoadingSupported', isSyncFontLoadingSupported());
+ },
+
+ enumerable: true,
+ configurable: true
+ });
+}
+var IsEvalSupportedCached = {
+ get value() {
+ return (0, _util.shadow)(this, 'value', (0, _util.isEvalSupported)());
+ }
+};
+var FontFaceObject = function FontFaceObjectClosure() {
+ function FontFaceObject(translatedData, options) {
+ this.compiledGlyphs = Object.create(null);
+ for (var i in translatedData) {
+ this[i] = translatedData[i];
+ }
+ this.options = options;
+ }
+ FontFaceObject.prototype = {
+ createNativeFontFace: function FontFaceObject_createNativeFontFace() {
+ if (!this.data) {
+ return null;
+ }
+ if (this.options.disableFontFace) {
+ this.disableFontFace = true;
+ return null;
+ }
+ var nativeFontFace = new FontFace(this.loadedName, this.data, {});
+ if (this.options.fontRegistry) {
+ this.options.fontRegistry.registerFont(this);
+ }
+ return nativeFontFace;
+ },
+ createFontFaceRule: function FontFaceObject_createFontFaceRule() {
+ if (!this.data) {
+ return null;
+ }
+ if (this.options.disableFontFace) {
+ this.disableFontFace = true;
+ return null;
+ }
+ var data = (0, _util.bytesToString)(new Uint8Array(this.data));
+ var fontName = this.loadedName;
+ var url = 'url(data:' + this.mimetype + ';base64,' + btoa(data) + ');';
+ var rule = '@font-face { font-family:"' + fontName + '";src:' + url + '}';
+ if (this.options.fontRegistry) {
+ this.options.fontRegistry.registerFont(this, url);
+ }
+ return rule;
+ },
+ getPathGenerator: function FontFaceObject_getPathGenerator(objs, character) {
+ if (!(character in this.compiledGlyphs)) {
+ var cmds = objs.get(this.loadedName + '_path_' + character);
+ var current, i, len;
+ if (this.options.isEvalSupported && IsEvalSupportedCached.value) {
+ var args,
+ js = '';
+ for (i = 0, len = cmds.length; i < len; i++) {
+ current = cmds[i];
+ if (current.args !== undefined) {
+ args = current.args.join(',');
+ } else {
+ args = '';
+ }
+ js += 'c.' + current.cmd + '(' + args + ');\n';
+ }
+ this.compiledGlyphs[character] = new Function('c', 'size', js);
+ } else {
+ this.compiledGlyphs[character] = function (c, size) {
+ for (i = 0, len = cmds.length; i < len; i++) {
+ current = cmds[i];
+ if (current.cmd === 'scale') {
+ current.args = [size, -size];
+ }
+ c[current.cmd].apply(c, current.args);
+ }
+ };
+ }
+ }
+ return this.compiledGlyphs[character];
+ }
+ };
+ return FontFaceObject;
+}();
+exports.FontFaceObject = FontFaceObject;
+exports.FontLoader = FontLoader;
+
+/***/ }),
+/* 13 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.TilingPattern = exports.getShadingPatternFromIR = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var _webgl = __w_pdfjs_require__(7);
+
+var ShadingIRs = {};
+ShadingIRs.RadialAxial = {
+ fromIR: function RadialAxial_fromIR(raw) {
+ var type = raw[1];
+ var colorStops = raw[2];
+ var p0 = raw[3];
+ var p1 = raw[4];
+ var r0 = raw[5];
+ var r1 = raw[6];
+ return {
+ type: 'Pattern',
+ getPattern: function RadialAxial_getPattern(ctx) {
+ var grad;
+ if (type === 'axial') {
+ grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
+ } else if (type === 'radial') {
+ grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
+ }
+ for (var i = 0, ii = colorStops.length; i < ii; ++i) {
+ var c = colorStops[i];
+ grad.addColorStop(c[0], c[1]);
+ }
+ return grad;
+ }
+ };
+ }
+};
+var createMeshCanvas = function createMeshCanvasClosure() {
+ function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
+ var coords = context.coords,
+ colors = context.colors;
+ var bytes = data.data,
+ rowSize = data.width * 4;
+ var tmp;
+ if (coords[p1 + 1] > coords[p2 + 1]) {
+ tmp = p1;
+ p1 = p2;
+ p2 = tmp;
+ tmp = c1;
+ c1 = c2;
+ c2 = tmp;
+ }
+ if (coords[p2 + 1] > coords[p3 + 1]) {
+ tmp = p2;
+ p2 = p3;
+ p3 = tmp;
+ tmp = c2;
+ c2 = c3;
+ c3 = tmp;
+ }
+ if (coords[p1 + 1] > coords[p2 + 1]) {
+ tmp = p1;
+ p1 = p2;
+ p2 = tmp;
+ tmp = c1;
+ c1 = c2;
+ c2 = tmp;
+ }
+ var x1 = (coords[p1] + context.offsetX) * context.scaleX;
+ var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
+ var x2 = (coords[p2] + context.offsetX) * context.scaleX;
+ var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
+ var x3 = (coords[p3] + context.offsetX) * context.scaleX;
+ var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;
+ if (y1 >= y3) {
+ return;
+ }
+ var c1r = colors[c1],
+ c1g = colors[c1 + 1],
+ c1b = colors[c1 + 2];
+ var c2r = colors[c2],
+ c2g = colors[c2 + 1],
+ c2b = colors[c2 + 2];
+ var c3r = colors[c3],
+ c3g = colors[c3 + 1],
+ c3b = colors[c3 + 2];
+ var minY = Math.round(y1),
+ maxY = Math.round(y3);
+ var xa, car, cag, cab;
+ var xb, cbr, cbg, cbb;
+ var k;
+ for (var y = minY; y <= maxY; y++) {
+ if (y < y2) {
+ k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2);
+ xa = x1 - (x1 - x2) * k;
+ car = c1r - (c1r - c2r) * k;
+ cag = c1g - (c1g - c2g) * k;
+ cab = c1b - (c1b - c2b) * k;
+ } else {
+ k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3);
+ xa = x2 - (x2 - x3) * k;
+ car = c2r - (c2r - c3r) * k;
+ cag = c2g - (c2g - c3g) * k;
+ cab = c2b - (c2b - c3b) * k;
+ }
+ k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3);
+ xb = x1 - (x1 - x3) * k;
+ cbr = c1r - (c1r - c3r) * k;
+ cbg = c1g - (c1g - c3g) * k;
+ cbb = c1b - (c1b - c3b) * k;
+ var x1_ = Math.round(Math.min(xa, xb));
+ var x2_ = Math.round(Math.max(xa, xb));
+ var j = rowSize * y + x1_ * 4;
+ for (var x = x1_; x <= x2_; x++) {
+ k = (xa - x) / (xa - xb);
+ k = k < 0 ? 0 : k > 1 ? 1 : k;
+ bytes[j++] = car - (car - cbr) * k | 0;
+ bytes[j++] = cag - (cag - cbg) * k | 0;
+ bytes[j++] = cab - (cab - cbb) * k | 0;
+ bytes[j++] = 255;
+ }
+ }
+ }
+ function drawFigure(data, figure, context) {
+ var ps = figure.coords;
+ var cs = figure.colors;
+ var i, ii;
+ switch (figure.type) {
+ case 'lattice':
+ var verticesPerRow = figure.verticesPerRow;
+ var rows = Math.floor(ps.length / verticesPerRow) - 1;
+ var cols = verticesPerRow - 1;
+ for (i = 0; i < rows; i++) {
+ var q = i * verticesPerRow;
+ for (var j = 0; j < cols; j++, q++) {
+ drawTriangle(data, context, ps[q], ps[q + 1], ps[q + verticesPerRow], cs[q], cs[q + 1], cs[q + verticesPerRow]);
+ drawTriangle(data, context, ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
+ }
+ }
+ break;
+ case 'triangles':
+ for (i = 0, ii = ps.length; i < ii; i += 3) {
+ drawTriangle(data, context, ps[i], ps[i + 1], ps[i + 2], cs[i], cs[i + 1], cs[i + 2]);
+ }
+ break;
+ default:
+ throw new Error('illegal figure');
+ }
+ }
+ function createMeshCanvas(bounds, combinesScale, coords, colors, figures, backgroundColor, cachedCanvases) {
+ var EXPECTED_SCALE = 1.1;
+ var MAX_PATTERN_SIZE = 3000;
+ var BORDER_SIZE = 2;
+ var offsetX = Math.floor(bounds[0]);
+ var offsetY = Math.floor(bounds[1]);
+ var boundsWidth = Math.ceil(bounds[2]) - offsetX;
+ var boundsHeight = Math.ceil(bounds[3]) - offsetY;
+ var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
+ var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
+ var scaleX = boundsWidth / width;
+ var scaleY = boundsHeight / height;
+ var context = {
+ coords: coords,
+ colors: colors,
+ offsetX: -offsetX,
+ offsetY: -offsetY,
+ scaleX: 1 / scaleX,
+ scaleY: 1 / scaleY
+ };
+ var paddedWidth = width + BORDER_SIZE * 2;
+ var paddedHeight = height + BORDER_SIZE * 2;
+ var canvas, tmpCanvas, i, ii;
+ if (_webgl.WebGLUtils.isEnabled) {
+ canvas = _webgl.WebGLUtils.drawFigures(width, height, backgroundColor, figures, context);
+ tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
+ tmpCanvas.context.drawImage(canvas, BORDER_SIZE, BORDER_SIZE);
+ canvas = tmpCanvas.canvas;
+ } else {
+ tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
+ var tmpCtx = tmpCanvas.context;
+ var data = tmpCtx.createImageData(width, height);
+ if (backgroundColor) {
+ var bytes = data.data;
+ for (i = 0, ii = bytes.length; i < ii; i += 4) {
+ bytes[i] = backgroundColor[0];
+ bytes[i + 1] = backgroundColor[1];
+ bytes[i + 2] = backgroundColor[2];
+ bytes[i + 3] = 255;
+ }
+ }
+ for (i = 0; i < figures.length; i++) {
+ drawFigure(data, figures[i], context);
+ }
+ tmpCtx.putImageData(data, BORDER_SIZE, BORDER_SIZE);
+ canvas = tmpCanvas.canvas;
+ }
+ return {
+ canvas: canvas,
+ offsetX: offsetX - BORDER_SIZE * scaleX,
+ offsetY: offsetY - BORDER_SIZE * scaleY,
+ scaleX: scaleX,
+ scaleY: scaleY
+ };
+ }
+ return createMeshCanvas;
+}();
+ShadingIRs.Mesh = {
+ fromIR: function Mesh_fromIR(raw) {
+ var coords = raw[2];
+ var colors = raw[3];
+ var figures = raw[4];
+ var bounds = raw[5];
+ var matrix = raw[6];
+ var background = raw[8];
+ return {
+ type: 'Pattern',
+ getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
+ var scale;
+ if (shadingFill) {
+ scale = _util.Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
+ } else {
+ scale = _util.Util.singularValueDecompose2dScale(owner.baseTransform);
+ if (matrix) {
+ var matrixScale = _util.Util.singularValueDecompose2dScale(matrix);
+ scale = [scale[0] * matrixScale[0], scale[1] * matrixScale[1]];
+ }
+ }
+ var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, colors, figures, shadingFill ? null : background, owner.cachedCanvases);
+ if (!shadingFill) {
+ ctx.setTransform.apply(ctx, owner.baseTransform);
+ if (matrix) {
+ ctx.transform.apply(ctx, matrix);
+ }
+ }
+ ctx.translate(temporaryPatternCanvas.offsetX, temporaryPatternCanvas.offsetY);
+ ctx.scale(temporaryPatternCanvas.scaleX, temporaryPatternCanvas.scaleY);
+ return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat');
+ }
+ };
+ }
+};
+ShadingIRs.Dummy = {
+ fromIR: function Dummy_fromIR() {
+ return {
+ type: 'Pattern',
+ getPattern: function Dummy_fromIR_getPattern() {
+ return 'hotpink';
+ }
+ };
+ }
+};
+function getShadingPatternFromIR(raw) {
+ var shadingIR = ShadingIRs[raw[0]];
+ if (!shadingIR) {
+ throw new Error('Unknown IR type: ' + raw[0]);
+ }
+ return shadingIR.fromIR(raw);
+}
+var TilingPattern = function TilingPatternClosure() {
+ var PaintType = {
+ COLORED: 1,
+ UNCOLORED: 2
+ };
+ var MAX_PATTERN_SIZE = 3000;
+ function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) {
+ this.operatorList = IR[2];
+ this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
+ this.bbox = IR[4];
+ this.xstep = IR[5];
+ this.ystep = IR[6];
+ this.paintType = IR[7];
+ this.tilingType = IR[8];
+ this.color = color;
+ this.canvasGraphicsFactory = canvasGraphicsFactory;
+ this.baseTransform = baseTransform;
+ this.type = 'Pattern';
+ this.ctx = ctx;
+ }
+ TilingPattern.prototype = {
+ createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
+ var operatorList = this.operatorList;
+ var bbox = this.bbox;
+ var xstep = this.xstep;
+ var ystep = this.ystep;
+ var paintType = this.paintType;
+ var tilingType = this.tilingType;
+ var color = this.color;
+ var canvasGraphicsFactory = this.canvasGraphicsFactory;
+ (0, _util.info)('TilingType: ' + tilingType);
+ var x0 = bbox[0],
+ y0 = bbox[1],
+ x1 = bbox[2],
+ y1 = bbox[3];
+ var topLeft = [x0, y0];
+ var botRight = [x0 + xstep, y0 + ystep];
+ var width = botRight[0] - topLeft[0];
+ var height = botRight[1] - topLeft[1];
+ var matrixScale = _util.Util.singularValueDecompose2dScale(this.matrix);
+ var curMatrixScale = _util.Util.singularValueDecompose2dScale(this.baseTransform);
+ var combinedScale = [matrixScale[0] * curMatrixScale[0], matrixScale[1] * curMatrixScale[1]];
+ width = Math.min(Math.ceil(Math.abs(width * combinedScale[0])), MAX_PATTERN_SIZE);
+ height = Math.min(Math.ceil(Math.abs(height * combinedScale[1])), MAX_PATTERN_SIZE);
+ var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', width, height, true);
+ var tmpCtx = tmpCanvas.context;
+ var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx);
+ graphics.groupLevel = owner.groupLevel;
+ this.setFillAndStrokeStyleToContext(tmpCtx, paintType, color);
+ this.setScale(width, height, xstep, ystep);
+ this.transformToScale(graphics);
+ var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]];
+ graphics.transform.apply(graphics, tmpTranslate);
+ this.clipBbox(graphics, bbox, x0, y0, x1, y1);
+ graphics.executeOperatorList(operatorList);
+ return tmpCanvas.canvas;
+ },
+ setScale: function TilingPattern_setScale(width, height, xstep, ystep) {
+ this.scale = [width / xstep, height / ystep];
+ },
+ transformToScale: function TilingPattern_transformToScale(graphics) {
+ var scale = this.scale;
+ var tmpScale = [scale[0], 0, 0, scale[1], 0, 0];
+ graphics.transform.apply(graphics, tmpScale);
+ },
+ scaleToContext: function TilingPattern_scaleToContext() {
+ var scale = this.scale;
+ this.ctx.scale(1 / scale[0], 1 / scale[1]);
+ },
+ clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
+ if ((0, _util.isArray)(bbox) && bbox.length === 4) {
+ var bboxWidth = x1 - x0;
+ var bboxHeight = y1 - y0;
+ graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
+ graphics.clip();
+ graphics.endPath();
+ }
+ },
+ setFillAndStrokeStyleToContext: function setFillAndStrokeStyleToContext(context, paintType, color) {
+ switch (paintType) {
+ case PaintType.COLORED:
+ var ctx = this.ctx;
+ context.fillStyle = ctx.fillStyle;
+ context.strokeStyle = ctx.strokeStyle;
+ break;
+ case PaintType.UNCOLORED:
+ var cssColor = _util.Util.makeCssRgb(color[0], color[1], color[2]);
+ context.fillStyle = cssColor;
+ context.strokeStyle = cssColor;
+ break;
+ default:
+ throw new _util.FormatError('Unsupported paint type: ' + paintType);
+ }
+ },
+ getPattern: function TilingPattern_getPattern(ctx, owner) {
+ var temporaryPatternCanvas = this.createPatternCanvas(owner);
+ ctx = this.ctx;
+ ctx.setTransform.apply(ctx, this.baseTransform);
+ ctx.transform.apply(ctx, this.matrix);
+ this.scaleToContext();
+ return ctx.createPattern(temporaryPatternCanvas, 'repeat');
+ }
+ };
+ return TilingPattern;
+}();
+exports.getShadingPatternFromIR = getShadingPatternFromIR;
+exports.TilingPattern = TilingPattern;
+
+/***/ }),
+/* 14 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.PDFDataTransportStream = undefined;
+
+var _util = __w_pdfjs_require__(0);
+
+var PDFDataTransportStream = function PDFDataTransportStreamClosure() {
+ function PDFDataTransportStream(params, pdfDataRangeTransport) {
+ var _this = this;
+
+ (0, _util.assert)(pdfDataRangeTransport);
+ this._queuedChunks = [];
+ var initialData = params.initialData;
+ if (initialData && initialData.length > 0) {
+ var buffer = new Uint8Array(initialData).buffer;
+ this._queuedChunks.push(buffer);
+ }
+ this._pdfDataRangeTransport = pdfDataRangeTransport;
+ this._isRangeSupported = !params.disableRange;
+ this._isStreamingSupported = !params.disableStream;
+ this._contentLength = params.length;
+ this._fullRequestReader = null;
+ this._rangeReaders = [];
+ this._pdfDataRangeTransport.addRangeListener(function (begin, chunk) {
+ _this._onReceiveData({
+ begin: begin,
+ chunk: chunk
+ });
+ });
+ this._pdfDataRangeTransport.addProgressListener(function (loaded) {
+ _this._onProgress({ loaded: loaded });
+ });
+ this._pdfDataRangeTransport.addProgressiveReadListener(function (chunk) {
+ _this._onReceiveData({ chunk: chunk });
+ });
+ this._pdfDataRangeTransport.transportReady();
+ }
+ PDFDataTransportStream.prototype = {
+ _onReceiveData: function PDFDataTransportStream_onReceiveData(args) {
+ var buffer = new Uint8Array(args.chunk).buffer;
+ if (args.begin === undefined) {
+ if (this._fullRequestReader) {
+ this._fullRequestReader._enqueue(buffer);
+ } else {
+ this._queuedChunks.push(buffer);
+ }
+ } else {
+ var found = this._rangeReaders.some(function (rangeReader) {
+ if (rangeReader._begin !== args.begin) {
+ return false;
+ }
+ rangeReader._enqueue(buffer);
+ return true;
+ });
+ (0, _util.assert)(found);
+ }
+ },
+ _onProgress: function PDFDataTransportStream_onDataProgress(evt) {
+ if (this._rangeReaders.length > 0) {
+ var firstReader = this._rangeReaders[0];
+ if (firstReader.onProgress) {
+ firstReader.onProgress({ loaded: evt.loaded });
+ }
+ }
+ },
+ _removeRangeReader: function PDFDataTransportStream_removeRangeReader(reader) {
+ var i = this._rangeReaders.indexOf(reader);
+ if (i >= 0) {
+ this._rangeReaders.splice(i, 1);
+ }
+ },
+ getFullReader: function PDFDataTransportStream_getFullReader() {
+ (0, _util.assert)(!this._fullRequestReader);
+ var queuedChunks = this._queuedChunks;
+ this._queuedChunks = null;
+ return new PDFDataTransportStreamReader(this, queuedChunks);
+ },
+ getRangeReader: function PDFDataTransportStream_getRangeReader(begin, end) {
+ var reader = new PDFDataTransportStreamRangeReader(this, begin, end);
+ this._pdfDataRangeTransport.requestDataRange(begin, end);
+ this._rangeReaders.push(reader);
+ return reader;
+ },
+ cancelAllRequests: function PDFDataTransportStream_cancelAllRequests(reason) {
+ if (this._fullRequestReader) {
+ this._fullRequestReader.cancel(reason);
+ }
+ var readers = this._rangeReaders.slice(0);
+ readers.forEach(function (rangeReader) {
+ rangeReader.cancel(reason);
+ });
+ this._pdfDataRangeTransport.abort();
+ }
+ };
+ function PDFDataTransportStreamReader(stream, queuedChunks) {
+ this._stream = stream;
+ this._done = false;
+ this._queuedChunks = queuedChunks || [];
+ this._requests = [];
+ this._headersReady = Promise.resolve();
+ stream._fullRequestReader = this;
+ this.onProgress = null;
+ }
+ PDFDataTransportStreamReader.prototype = {
+ _enqueue: function PDFDataTransportStreamReader_enqueue(chunk) {
+ if (this._done) {
+ return;
+ }
+ if (this._requests.length > 0) {
+ var requestCapability = this._requests.shift();
+ requestCapability.resolve({
+ value: chunk,
+ done: false
+ });
+ return;
+ }
+ this._queuedChunks.push(chunk);
+ },
+ get headersReady() {
+ return this._headersReady;
+ },
+ get isRangeSupported() {
+ return this._stream._isRangeSupported;
+ },
+ get isStreamingSupported() {
+ return this._stream._isStreamingSupported;
+ },
+ get contentLength() {
+ return this._stream._contentLength;
+ },
+ read: function PDFDataTransportStreamReader_read() {
+ if (this._queuedChunks.length > 0) {
+ var chunk = this._queuedChunks.shift();
+ return Promise.resolve({
+ value: chunk,
+ done: false
+ });
+ }
+ if (this._done) {
+ return Promise.resolve({
+ value: undefined,
+ done: true
+ });
+ }
+ var requestCapability = (0, _util.createPromiseCapability)();
+ this._requests.push(requestCapability);
+ return requestCapability.promise;
+ },
+ cancel: function PDFDataTransportStreamReader_cancel(reason) {
+ this._done = true;
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ }
+ };
+ function PDFDataTransportStreamRangeReader(stream, begin, end) {
+ this._stream = stream;
+ this._begin = begin;
+ this._end = end;
+ this._queuedChunk = null;
+ this._requests = [];
+ this._done = false;
+ this.onProgress = null;
+ }
+ PDFDataTransportStreamRangeReader.prototype = {
+ _enqueue: function PDFDataTransportStreamRangeReader_enqueue(chunk) {
+ if (this._done) {
+ return;
+ }
+ if (this._requests.length === 0) {
+ this._queuedChunk = chunk;
+ } else {
+ var requestsCapability = this._requests.shift();
+ requestsCapability.resolve({
+ value: chunk,
+ done: false
+ });
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ }
+ this._done = true;
+ this._stream._removeRangeReader(this);
+ },
+ get isStreamingSupported() {
+ return false;
+ },
+ read: function PDFDataTransportStreamRangeReader_read() {
+ if (this._queuedChunk) {
+ var chunk = this._queuedChunk;
+ this._queuedChunk = null;
+ return Promise.resolve({
+ value: chunk,
+ done: false
+ });
+ }
+ if (this._done) {
+ return Promise.resolve({
+ value: undefined,
+ done: true
+ });
+ }
+ var requestCapability = (0, _util.createPromiseCapability)();
+ this._requests.push(requestCapability);
+ return requestCapability.promise;
+ },
+ cancel: function PDFDataTransportStreamRangeReader_cancel(reason) {
+ this._done = true;
+ this._requests.forEach(function (requestCapability) {
+ requestCapability.resolve({
+ value: undefined,
+ done: true
+ });
+ });
+ this._requests = [];
+ this._stream._removeRangeReader(this);
+ }
+ };
+ return PDFDataTransportStream;
+}();
+exports.PDFDataTransportStream = PDFDataTransportStream;
+
+/***/ }),
+/* 15 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+var pdfjsVersion = '1.9.426';
+var pdfjsBuild = '2558a58d';
+var pdfjsSharedUtil = __w_pdfjs_require__(0);
+var pdfjsDisplayGlobal = __w_pdfjs_require__(8);
+var pdfjsDisplayAPI = __w_pdfjs_require__(2);
+var pdfjsDisplayTextLayer = __w_pdfjs_require__(5);
+var pdfjsDisplayAnnotationLayer = __w_pdfjs_require__(3);
+var pdfjsDisplayDOMUtils = __w_pdfjs_require__(1);
+var pdfjsDisplaySVG = __w_pdfjs_require__(4);
+{
+ __w_pdfjs_require__(9);
+}
+exports.PDFJS = pdfjsDisplayGlobal.PDFJS;
+exports.build = pdfjsDisplayAPI.build;
+exports.version = pdfjsDisplayAPI.version;
+exports.getDocument = pdfjsDisplayAPI.getDocument;
+exports.LoopbackPort = pdfjsDisplayAPI.LoopbackPort;
+exports.PDFDataRangeTransport = pdfjsDisplayAPI.PDFDataRangeTransport;
+exports.PDFWorker = pdfjsDisplayAPI.PDFWorker;
+exports.renderTextLayer = pdfjsDisplayTextLayer.renderTextLayer;
+exports.AnnotationLayer = pdfjsDisplayAnnotationLayer.AnnotationLayer;
+exports.CustomStyle = pdfjsDisplayDOMUtils.CustomStyle;
+exports.createPromiseCapability = pdfjsSharedUtil.createPromiseCapability;
+exports.PasswordResponses = pdfjsSharedUtil.PasswordResponses;
+exports.InvalidPDFException = pdfjsSharedUtil.InvalidPDFException;
+exports.MissingPDFException = pdfjsSharedUtil.MissingPDFException;
+exports.SVGGraphics = pdfjsDisplaySVG.SVGGraphics;
+exports.NativeImageDecoding = pdfjsSharedUtil.NativeImageDecoding;
+exports.UnexpectedResponseException = pdfjsSharedUtil.UnexpectedResponseException;
+exports.OPS = pdfjsSharedUtil.OPS;
+exports.UNSUPPORTED_FEATURES = pdfjsSharedUtil.UNSUPPORTED_FEATURES;
+exports.isValidUrl = pdfjsDisplayDOMUtils.isValidUrl;
+exports.createValidAbsoluteUrl = pdfjsSharedUtil.createValidAbsoluteUrl;
+exports.createObjectURL = pdfjsSharedUtil.createObjectURL;
+exports.removeNullCharacters = pdfjsSharedUtil.removeNullCharacters;
+exports.shadow = pdfjsSharedUtil.shadow;
+exports.createBlob = pdfjsSharedUtil.createBlob;
+exports.RenderingCancelledException = pdfjsDisplayDOMUtils.RenderingCancelledException;
+exports.getFilenameFromUrl = pdfjsDisplayDOMUtils.getFilenameFromUrl;
+exports.addLinkAttributes = pdfjsDisplayDOMUtils.addLinkAttributes;
+exports.StatTimer = pdfjsSharedUtil.StatTimer;
+
+/***/ }),
+/* 16 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+if (typeof PDFJS === 'undefined' || !PDFJS.compatibilityChecked) {
+ var globalScope = typeof window !== 'undefined' && window.Math === Math ? window : typeof global !== 'undefined' && global.Math === Math ? global : typeof self !== 'undefined' && self.Math === Math ? self : false ? undefined : {};
+ var userAgent = typeof navigator !== 'undefined' && navigator.userAgent || '';
+ var isAndroid = /Android/.test(userAgent);
+ var isAndroidPre3 = /Android\s[0-2][^\d]/.test(userAgent);
+ var isAndroidPre5 = /Android\s[0-4][^\d]/.test(userAgent);
+ var isChrome = userAgent.indexOf('Chrom') >= 0;
+ var isChromeWithRangeBug = /Chrome\/(39|40)\./.test(userAgent);
+ var isIOSChrome = userAgent.indexOf('CriOS') >= 0;
+ var isIE = userAgent.indexOf('Trident') >= 0;
+ var isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent);
+ var isOpera = userAgent.indexOf('Opera') >= 0;
+ var isSafari = /Safari\//.test(userAgent) && !/(Chrome\/|Android\s)/.test(userAgent);
+ var hasDOM = (typeof window === 'undefined' ? 'undefined' : _typeof(window)) === 'object' && (typeof document === 'undefined' ? 'undefined' : _typeof(document)) === 'object';
+ if (typeof PDFJS === 'undefined') {
+ globalScope.PDFJS = {};
+ }
+ PDFJS.compatibilityChecked = true;
+ (function checkTypedArrayCompatibility() {
+ if (typeof Uint8Array !== 'undefined') {
+ if (typeof Uint8Array.prototype.subarray === 'undefined') {
+ Uint8Array.prototype.subarray = function subarray(start, end) {
+ return new Uint8Array(this.slice(start, end));
+ };
+ Float32Array.prototype.subarray = function subarray(start, end) {
+ return new Float32Array(this.slice(start, end));
+ };
+ }
+ if (typeof Float64Array === 'undefined') {
+ globalScope.Float64Array = Float32Array;
+ }
+ return;
+ }
+ function subarray(start, end) {
+ return new TypedArray(this.slice(start, end));
+ }
+ function setArrayOffset(array, offset) {
+ if (arguments.length < 2) {
+ offset = 0;
+ }
+ for (var i = 0, n = array.length; i < n; ++i, ++offset) {
+ this[offset] = array[i] & 0xFF;
+ }
+ }
+ function Uint32ArrayView(buffer, length) {
+ this.buffer = buffer;
+ this.byteLength = buffer.length;
+ this.length = length;
+ ensureUint32ArrayViewProps(this.length);
+ }
+ Uint32ArrayView.prototype = Object.create(null);
+ var uint32ArrayViewSetters = 0;
+ function createUint32ArrayProp(index) {
+ return {
+ get: function get() {
+ var buffer = this.buffer,
+ offset = index << 2;
+ return (buffer[offset] | buffer[offset + 1] << 8 | buffer[offset + 2] << 16 | buffer[offset + 3] << 24) >>> 0;
+ },
+ set: function set(value) {
+ var buffer = this.buffer,
+ offset = index << 2;
+ buffer[offset] = value & 255;
+ buffer[offset + 1] = value >> 8 & 255;
+ buffer[offset + 2] = value >> 16 & 255;
+ buffer[offset + 3] = value >>> 24 & 255;
+ }
+ };
+ }
+ function ensureUint32ArrayViewProps(length) {
+ while (uint32ArrayViewSetters < length) {
+ Object.defineProperty(Uint32ArrayView.prototype, uint32ArrayViewSetters, createUint32ArrayProp(uint32ArrayViewSetters));
+ uint32ArrayViewSetters++;
+ }
+ }
+ function TypedArray(arg1) {
+ var result, i, n;
+ if (typeof arg1 === 'number') {
+ result = [];
+ for (i = 0; i < arg1; ++i) {
+ result[i] = 0;
+ }
+ } else if ('slice' in arg1) {
+ result = arg1.slice(0);
+ } else {
+ result = [];
+ for (i = 0, n = arg1.length; i < n; ++i) {
+ result[i] = arg1[i];
+ }
+ }
+ result.subarray = subarray;
+ result.buffer = result;
+ result.byteLength = result.length;
+ result.set = setArrayOffset;
+ if ((typeof arg1 === 'undefined' ? 'undefined' : _typeof(arg1)) === 'object' && arg1.buffer) {
+ result.buffer = arg1.buffer;
+ }
+ return result;
+ }
+ globalScope.Uint8Array = TypedArray;
+ globalScope.Int8Array = TypedArray;
+ globalScope.Int32Array = TypedArray;
+ globalScope.Uint16Array = TypedArray;
+ globalScope.Float32Array = TypedArray;
+ globalScope.Float64Array = TypedArray;
+ globalScope.Uint32Array = function () {
+ if (arguments.length === 3) {
+ if (arguments[1] !== 0) {
+ throw new Error('offset !== 0 is not supported');
+ }
+ return new Uint32ArrayView(arguments[0], arguments[2]);
+ }
+ return TypedArray.apply(this, arguments);
+ };
+ })();
+ (function canvasPixelArrayBuffer() {
+ if (!hasDOM || !window.CanvasPixelArray) {
+ return;
+ }
+ var cpaProto = window.CanvasPixelArray.prototype;
+ if ('buffer' in cpaProto) {
+ return;
+ }
+ Object.defineProperty(cpaProto, 'buffer', {
+ get: function get() {
+ return this;
+ },
+
+ enumerable: false,
+ configurable: true
+ });
+ Object.defineProperty(cpaProto, 'byteLength', {
+ get: function get() {
+ return this.length;
+ },
+
+ enumerable: false,
+ configurable: true
+ });
+ })();
+ (function normalizeURLObject() {
+ if (!globalScope.URL) {
+ globalScope.URL = globalScope.webkitURL;
+ }
+ })();
+ (function checkObjectDefinePropertyCompatibility() {
+ if (typeof Object.defineProperty !== 'undefined') {
+ var definePropertyPossible = true;
+ try {
+ if (hasDOM) {
+ Object.defineProperty(new Image(), 'id', { value: 'test' });
+ }
+ var Test = function Test() {};
+ Test.prototype = {
+ get id() {}
+ };
+ Object.defineProperty(new Test(), 'id', {
+ value: '',
+ configurable: true,
+ enumerable: true,
+ writable: false
+ });
+ } catch (e) {
+ definePropertyPossible = false;
+ }
+ if (definePropertyPossible) {
+ return;
+ }
+ }
+ Object.defineProperty = function objectDefineProperty(obj, name, def) {
+ delete obj[name];
+ if ('get' in def) {
+ obj.__defineGetter__(name, def['get']);
+ }
+ if ('set' in def) {
+ obj.__defineSetter__(name, def['set']);
+ }
+ if ('value' in def) {
+ obj.__defineSetter__(name, function objectDefinePropertySetter(value) {
+ this.__defineGetter__(name, function objectDefinePropertyGetter() {
+ return value;
+ });
+ return value;
+ });
+ obj[name] = def.value;
+ }
+ };
+ })();
+ (function checkXMLHttpRequestResponseCompatibility() {
+ if (typeof XMLHttpRequest === 'undefined') {
+ return;
+ }
+ var xhrPrototype = XMLHttpRequest.prototype;
+ var xhr = new XMLHttpRequest();
+ if (!('overrideMimeType' in xhr)) {
+ Object.defineProperty(xhrPrototype, 'overrideMimeType', {
+ value: function xmlHttpRequestOverrideMimeType(mimeType) {}
+ });
+ }
+ if ('responseType' in xhr) {
+ return;
+ }
+ Object.defineProperty(xhrPrototype, 'responseType', {
+ get: function xmlHttpRequestGetResponseType() {
+ return this._responseType || 'text';
+ },
+ set: function xmlHttpRequestSetResponseType(value) {
+ if (value === 'text' || value === 'arraybuffer') {
+ this._responseType = value;
+ if (value === 'arraybuffer' && typeof this.overrideMimeType === 'function') {
+ this.overrideMimeType('text/plain; charset=x-user-defined');
+ }
+ }
+ }
+ });
+ if (typeof VBArray !== 'undefined') {
+ Object.defineProperty(xhrPrototype, 'response', {
+ get: function xmlHttpRequestResponseGet() {
+ if (this.responseType === 'arraybuffer') {
+ return new Uint8Array(new VBArray(this.responseBody).toArray());
+ }
+ return this.responseText;
+ }
+ });
+ return;
+ }
+ Object.defineProperty(xhrPrototype, 'response', {
+ get: function xmlHttpRequestResponseGet() {
+ if (this.responseType !== 'arraybuffer') {
+ return this.responseText;
+ }
+ var text = this.responseText;
+ var i,
+ n = text.length;
+ var result = new Uint8Array(n);
+ for (i = 0; i < n; ++i) {
+ result[i] = text.charCodeAt(i) & 0xFF;
+ }
+ return result.buffer;
+ }
+ });
+ })();
+ (function checkWindowBtoaCompatibility() {
+ if ('btoa' in globalScope) {
+ return;
+ }
+ var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+ globalScope.btoa = function (chars) {
+ var buffer = '';
+ var i, n;
+ for (i = 0, n = chars.length; i < n; i += 3) {
+ var b1 = chars.charCodeAt(i) & 0xFF;
+ var b2 = chars.charCodeAt(i + 1) & 0xFF;
+ var b3 = chars.charCodeAt(i + 2) & 0xFF;
+ var d1 = b1 >> 2,
+ d2 = (b1 & 3) << 4 | b2 >> 4;
+ var d3 = i + 1 < n ? (b2 & 0xF) << 2 | b3 >> 6 : 64;
+ var d4 = i + 2 < n ? b3 & 0x3F : 64;
+ buffer += digits.charAt(d1) + digits.charAt(d2) + digits.charAt(d3) + digits.charAt(d4);
+ }
+ return buffer;
+ };
+ })();
+ (function checkWindowAtobCompatibility() {
+ if ('atob' in globalScope) {
+ return;
+ }
+ var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+ globalScope.atob = function (input) {
+ input = input.replace(/=+$/, '');
+ if (input.length % 4 === 1) {
+ throw new Error('bad atob input');
+ }
+ for (var bc = 0, bs, buffer, idx = 0, output = ''; buffer = input.charAt(idx++); ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer, bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0) {
+ buffer = digits.indexOf(buffer);
+ }
+ return output;
+ };
+ })();
+ (function checkFunctionPrototypeBindCompatibility() {
+ if (typeof Function.prototype.bind !== 'undefined') {
+ return;
+ }
+ Function.prototype.bind = function functionPrototypeBind(obj) {
+ var fn = this,
+ headArgs = Array.prototype.slice.call(arguments, 1);
+ var bound = function functionPrototypeBindBound() {
+ var args = headArgs.concat(Array.prototype.slice.call(arguments));
+ return fn.apply(obj, args);
+ };
+ return bound;
+ };
+ })();
+ (function checkDatasetProperty() {
+ if (!hasDOM) {
+ return;
+ }
+ var div = document.createElement('div');
+ if ('dataset' in div) {
+ return;
+ }
+ Object.defineProperty(HTMLElement.prototype, 'dataset', {
+ get: function get() {
+ if (this._dataset) {
+ return this._dataset;
+ }
+ var dataset = {};
+ for (var j = 0, jj = this.attributes.length; j < jj; j++) {
+ var attribute = this.attributes[j];
+ if (attribute.name.substring(0, 5) !== 'data-') {
+ continue;
+ }
+ var key = attribute.name.substring(5).replace(/\-([a-z])/g, function (all, ch) {
+ return ch.toUpperCase();
+ });
+ dataset[key] = attribute.value;
+ }
+ Object.defineProperty(this, '_dataset', {
+ value: dataset,
+ writable: false,
+ enumerable: false
+ });
+ return dataset;
+ },
+
+ enumerable: true
+ });
+ })();
+ (function checkClassListProperty() {
+ function changeList(element, itemName, add, remove) {
+ var s = element.className || '';
+ var list = s.split(/\s+/g);
+ if (list[0] === '') {
+ list.shift();
+ }
+ var index = list.indexOf(itemName);
+ if (index < 0 && add) {
+ list.push(itemName);
+ }
+ if (index >= 0 && remove) {
+ list.splice(index, 1);
+ }
+ element.className = list.join(' ');
+ return index >= 0;
+ }
+ if (!hasDOM) {
+ return;
+ }
+ var div = document.createElement('div');
+ if ('classList' in div) {
+ return;
+ }
+ var classListPrototype = {
+ add: function add(name) {
+ changeList(this.element, name, true, false);
+ },
+ contains: function contains(name) {
+ return changeList(this.element, name, false, false);
+ },
+ remove: function remove(name) {
+ changeList(this.element, name, false, true);
+ },
+ toggle: function toggle(name) {
+ changeList(this.element, name, true, true);
+ }
+ };
+ Object.defineProperty(HTMLElement.prototype, 'classList', {
+ get: function get() {
+ if (this._classList) {
+ return this._classList;
+ }
+ var classList = Object.create(classListPrototype, {
+ element: {
+ value: this,
+ writable: false,
+ enumerable: true
+ }
+ });
+ Object.defineProperty(this, '_classList', {
+ value: classList,
+ writable: false,
+ enumerable: false
+ });
+ return classList;
+ },
+
+ enumerable: true
+ });
+ })();
+ (function checkWorkerConsoleCompatibility() {
+ if (typeof importScripts === 'undefined' || 'console' in globalScope) {
+ return;
+ }
+ var consoleTimer = {};
+ var workerConsole = {
+ log: function log() {
+ var args = Array.prototype.slice.call(arguments);
+ globalScope.postMessage({
+ targetName: 'main',
+ action: 'console_log',
+ data: args
+ });
+ },
+ error: function error() {
+ var args = Array.prototype.slice.call(arguments);
+ globalScope.postMessage({
+ targetName: 'main',
+ action: 'console_error',
+ data: args
+ });
+ },
+ time: function time(name) {
+ consoleTimer[name] = Date.now();
+ },
+ timeEnd: function timeEnd(name) {
+ var time = consoleTimer[name];
+ if (!time) {
+ throw new Error('Unknown timer name ' + name);
+ }
+ this.log('Timer:', name, Date.now() - time);
+ }
+ };
+ globalScope.console = workerConsole;
+ })();
+ (function checkConsoleCompatibility() {
+ if (!hasDOM) {
+ return;
+ }
+ if (!('console' in window)) {
+ window.console = {
+ log: function log() {},
+ error: function error() {},
+ warn: function warn() {}
+ };
+ return;
+ }
+ if (!('bind' in console.log)) {
+ console.log = function (fn) {
+ return function (msg) {
+ return fn(msg);
+ };
+ }(console.log);
+ console.error = function (fn) {
+ return function (msg) {
+ return fn(msg);
+ };
+ }(console.error);
+ console.warn = function (fn) {
+ return function (msg) {
+ return fn(msg);
+ };
+ }(console.warn);
+ return;
+ }
+ })();
+ (function checkOnClickCompatibility() {
+ function ignoreIfTargetDisabled(event) {
+ if (isDisabled(event.target)) {
+ event.stopPropagation();
+ }
+ }
+ function isDisabled(node) {
+ return node.disabled || node.parentNode && isDisabled(node.parentNode);
+ }
+ if (isOpera) {
+ document.addEventListener('click', ignoreIfTargetDisabled, true);
+ }
+ })();
+ (function checkOnBlobSupport() {
+ if (isIE || isIOSChrome) {
+ PDFJS.disableCreateObjectURL = true;
+ }
+ })();
+ (function checkNavigatorLanguage() {
+ if (typeof navigator === 'undefined') {
+ return;
+ }
+ if ('language' in navigator) {
+ return;
+ }
+ PDFJS.locale = navigator.userLanguage || 'en-US';
+ })();
+ (function checkRangeRequests() {
+ if (isSafari || isAndroidPre3 || isChromeWithRangeBug || isIOS) {
+ PDFJS.disableRange = true;
+ PDFJS.disableStream = true;
+ }
+ })();
+ (function checkHistoryManipulation() {
+ if (!hasDOM) {
+ return;
+ }
+ if (!history.pushState || isAndroidPre3) {
+ PDFJS.disableHistory = true;
+ }
+ })();
+ (function checkSetPresenceInImageData() {
+ if (!hasDOM) {
+ return;
+ }
+ if (window.CanvasPixelArray) {
+ if (typeof window.CanvasPixelArray.prototype.set !== 'function') {
+ window.CanvasPixelArray.prototype.set = function (arr) {
+ for (var i = 0, ii = this.length; i < ii; i++) {
+ this[i] = arr[i];
+ }
+ };
+ }
+ } else {
+ var polyfill = false,
+ versionMatch;
+ if (isChrome) {
+ versionMatch = userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
+ polyfill = versionMatch && parseInt(versionMatch[2]) < 21;
+ } else if (isAndroid) {
+ polyfill = isAndroidPre5;
+ } else if (isSafari) {
+ versionMatch = userAgent.match(/Version\/([0-9]+)\.([0-9]+)\.([0-9]+) Safari\//);
+ polyfill = versionMatch && parseInt(versionMatch[1]) < 6;
+ }
+ if (polyfill) {
+ var contextPrototype = window.CanvasRenderingContext2D.prototype;
+ var createImageData = contextPrototype.createImageData;
+ contextPrototype.createImageData = function (w, h) {
+ var imageData = createImageData.call(this, w, h);
+ imageData.data.set = function (arr) {
+ for (var i = 0, ii = this.length; i < ii; i++) {
+ this[i] = arr[i];
+ }
+ };
+ return imageData;
+ };
+ contextPrototype = null;
+ }
+ }
+ })();
+ (function checkRequestAnimationFrame() {
+ function installFakeAnimationFrameFunctions() {
+ window.requestAnimationFrame = function (callback) {
+ return window.setTimeout(callback, 20);
+ };
+ window.cancelAnimationFrame = function (timeoutID) {
+ window.clearTimeout(timeoutID);
+ };
+ }
+ if (!hasDOM) {
+ return;
+ }
+ if (isIOS) {
+ installFakeAnimationFrameFunctions();
+ return;
+ }
+ if ('requestAnimationFrame' in window) {
+ return;
+ }
+ window.requestAnimationFrame = window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame;
+ if (window.requestAnimationFrame) {
+ return;
+ }
+ installFakeAnimationFrameFunctions();
+ })();
+ (function checkCanvasSizeLimitation() {
+ if (isIOS || isAndroid) {
+ PDFJS.maxCanvasPixels = 5242880;
+ }
+ })();
+ (function checkFullscreenSupport() {
+ if (!hasDOM) {
+ return;
+ }
+ if (isIE && window.parent !== window) {
+ PDFJS.disableFullscreen = true;
+ }
+ })();
+ (function checkCurrentScript() {
+ if (!hasDOM) {
+ return;
+ }
+ if ('currentScript' in document) {
+ return;
+ }
+ Object.defineProperty(document, 'currentScript', {
+ get: function get() {
+ var scripts = document.getElementsByTagName('script');
+ return scripts[scripts.length - 1];
+ },
+
+ enumerable: true,
+ configurable: true
+ });
+ })();
+ (function checkInputTypeNumberAssign() {
+ if (!hasDOM) {
+ return;
+ }
+ var el = document.createElement('input');
+ try {
+ el.type = 'number';
+ } catch (ex) {
+ var inputProto = el.constructor.prototype;
+ var typeProperty = Object.getOwnPropertyDescriptor(inputProto, 'type');
+ Object.defineProperty(inputProto, 'type', {
+ get: function get() {
+ return typeProperty.get.call(this);
+ },
+ set: function set(value) {
+ typeProperty.set.call(this, value === 'number' ? 'text' : value);
+ },
+
+ enumerable: true,
+ configurable: true
+ });
+ }
+ })();
+ (function checkDocumentReadyState() {
+ if (!hasDOM) {
+ return;
+ }
+ if (!document.attachEvent) {
+ return;
+ }
+ var documentProto = document.constructor.prototype;
+ var readyStateProto = Object.getOwnPropertyDescriptor(documentProto, 'readyState');
+ Object.defineProperty(documentProto, 'readyState', {
+ get: function get() {
+ var value = readyStateProto.get.call(this);
+ return value === 'interactive' ? 'loading' : value;
+ },
+ set: function set(value) {
+ readyStateProto.set.call(this, value);
+ },
+
+ enumerable: true,
+ configurable: true
+ });
+ })();
+ (function checkChildNodeRemove() {
+ if (!hasDOM) {
+ return;
+ }
+ if (typeof Element.prototype.remove !== 'undefined') {
+ return;
+ }
+ Element.prototype.remove = function () {
+ if (this.parentNode) {
+ this.parentNode.removeChild(this);
+ }
+ };
+ })();
+ (function checkNumberIsNaN() {
+ if (Number.isNaN) {
+ return;
+ }
+ Number.isNaN = function (value) {
+ return typeof value === 'number' && isNaN(value);
+ };
+ })();
+ (function checkNumberIsInteger() {
+ if (Number.isInteger) {
+ return;
+ }
+ Number.isInteger = function (value) {
+ return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
+ };
+ })();
+ (function checkPromise() {
+ if (globalScope.Promise) {
+ if (typeof globalScope.Promise.all !== 'function') {
+ globalScope.Promise.all = function (iterable) {
+ var count = 0,
+ results = [],
+ resolve,
+ reject;
+ var promise = new globalScope.Promise(function (resolve_, reject_) {
+ resolve = resolve_;
+ reject = reject_;
+ });
+ iterable.forEach(function (p, i) {
+ count++;
+ p.then(function (result) {
+ results[i] = result;
+ count--;
+ if (count === 0) {
+ resolve(results);
+ }
+ }, reject);
+ });
+ if (count === 0) {
+ resolve(results);
+ }
+ return promise;
+ };
+ }
+ if (typeof globalScope.Promise.resolve !== 'function') {
+ globalScope.Promise.resolve = function (value) {
+ return new globalScope.Promise(function (resolve) {
+ resolve(value);
+ });
+ };
+ }
+ if (typeof globalScope.Promise.reject !== 'function') {
+ globalScope.Promise.reject = function (reason) {
+ return new globalScope.Promise(function (resolve, reject) {
+ reject(reason);
+ });
+ };
+ }
+ if (typeof globalScope.Promise.prototype.catch !== 'function') {
+ globalScope.Promise.prototype.catch = function (onReject) {
+ return globalScope.Promise.prototype.then(undefined, onReject);
+ };
+ }
+ return;
+ }
+ var STATUS_PENDING = 0;
+ var STATUS_RESOLVED = 1;
+ var STATUS_REJECTED = 2;
+ var REJECTION_TIMEOUT = 500;
+ var HandlerManager = {
+ handlers: [],
+ running: false,
+ unhandledRejections: [],
+ pendingRejectionCheck: false,
+ scheduleHandlers: function scheduleHandlers(promise) {
+ if (promise._status === STATUS_PENDING) {
+ return;
+ }
+ this.handlers = this.handlers.concat(promise._handlers);
+ promise._handlers = [];
+ if (this.running) {
+ return;
+ }
+ this.running = true;
+ setTimeout(this.runHandlers.bind(this), 0);
+ },
+ runHandlers: function runHandlers() {
+ var RUN_TIMEOUT = 1;
+ var timeoutAt = Date.now() + RUN_TIMEOUT;
+ while (this.handlers.length > 0) {
+ var handler = this.handlers.shift();
+ var nextStatus = handler.thisPromise._status;
+ var nextValue = handler.thisPromise._value;
+ try {
+ if (nextStatus === STATUS_RESOLVED) {
+ if (typeof handler.onResolve === 'function') {
+ nextValue = handler.onResolve(nextValue);
+ }
+ } else if (typeof handler.onReject === 'function') {
+ nextValue = handler.onReject(nextValue);
+ nextStatus = STATUS_RESOLVED;
+ if (handler.thisPromise._unhandledRejection) {
+ this.removeUnhandeledRejection(handler.thisPromise);
+ }
+ }
+ } catch (ex) {
+ nextStatus = STATUS_REJECTED;
+ nextValue = ex;
+ }
+ handler.nextPromise._updateStatus(nextStatus, nextValue);
+ if (Date.now() >= timeoutAt) {
+ break;
+ }
+ }
+ if (this.handlers.length > 0) {
+ setTimeout(this.runHandlers.bind(this), 0);
+ return;
+ }
+ this.running = false;
+ },
+ addUnhandledRejection: function addUnhandledRejection(promise) {
+ this.unhandledRejections.push({
+ promise: promise,
+ time: Date.now()
+ });
+ this.scheduleRejectionCheck();
+ },
+ removeUnhandeledRejection: function removeUnhandeledRejection(promise) {
+ promise._unhandledRejection = false;
+ for (var i = 0; i < this.unhandledRejections.length; i++) {
+ if (this.unhandledRejections[i].promise === promise) {
+ this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ },
+ scheduleRejectionCheck: function scheduleRejectionCheck() {
+ var _this = this;
+
+ if (this.pendingRejectionCheck) {
+ return;
+ }
+ this.pendingRejectionCheck = true;
+ setTimeout(function () {
+ _this.pendingRejectionCheck = false;
+ var now = Date.now();
+ for (var i = 0; i < _this.unhandledRejections.length; i++) {
+ if (now - _this.unhandledRejections[i].time > REJECTION_TIMEOUT) {
+ var unhandled = _this.unhandledRejections[i].promise._value;
+ var msg = 'Unhandled rejection: ' + unhandled;
+ if (unhandled.stack) {
+ msg += '\n' + unhandled.stack;
+ }
+ try {
+ throw new Error(msg);
+ } catch (_) {
+ console.warn(msg);
+ }
+ _this.unhandledRejections.splice(i);
+ i--;
+ }
+ }
+ if (_this.unhandledRejections.length) {
+ _this.scheduleRejectionCheck();
+ }
+ }, REJECTION_TIMEOUT);
+ }
+ };
+ var Promise = function Promise(resolver) {
+ this._status = STATUS_PENDING;
+ this._handlers = [];
+ try {
+ resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
+ } catch (e) {
+ this._reject(e);
+ }
+ };
+ Promise.all = function Promise_all(promises) {
+ var resolveAll, rejectAll;
+ var deferred = new Promise(function (resolve, reject) {
+ resolveAll = resolve;
+ rejectAll = reject;
+ });
+ var unresolved = promises.length;
+ var results = [];
+ if (unresolved === 0) {
+ resolveAll(results);
+ return deferred;
+ }
+ function reject(reason) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results = [];
+ rejectAll(reason);
+ }
+ for (var i = 0, ii = promises.length; i < ii; ++i) {
+ var promise = promises[i];
+ var resolve = function (i) {
+ return function (value) {
+ if (deferred._status === STATUS_REJECTED) {
+ return;
+ }
+ results[i] = value;
+ unresolved--;
+ if (unresolved === 0) {
+ resolveAll(results);
+ }
+ };
+ }(i);
+ if (Promise.isPromise(promise)) {
+ promise.then(resolve, reject);
+ } else {
+ resolve(promise);
+ }
+ }
+ return deferred;
+ };
+ Promise.isPromise = function Promise_isPromise(value) {
+ return value && typeof value.then === 'function';
+ };
+ Promise.resolve = function Promise_resolve(value) {
+ return new Promise(function (resolve) {
+ resolve(value);
+ });
+ };
+ Promise.reject = function Promise_reject(reason) {
+ return new Promise(function (resolve, reject) {
+ reject(reason);
+ });
+ };
+ Promise.prototype = {
+ _status: null,
+ _value: null,
+ _handlers: null,
+ _unhandledRejection: null,
+ _updateStatus: function Promise__updateStatus(status, value) {
+ if (this._status === STATUS_RESOLVED || this._status === STATUS_REJECTED) {
+ return;
+ }
+ if (status === STATUS_RESOLVED && Promise.isPromise(value)) {
+ value.then(this._updateStatus.bind(this, STATUS_RESOLVED), this._updateStatus.bind(this, STATUS_REJECTED));
+ return;
+ }
+ this._status = status;
+ this._value = value;
+ if (status === STATUS_REJECTED && this._handlers.length === 0) {
+ this._unhandledRejection = true;
+ HandlerManager.addUnhandledRejection(this);
+ }
+ HandlerManager.scheduleHandlers(this);
+ },
+ _resolve: function Promise_resolve(value) {
+ this._updateStatus(STATUS_RESOLVED, value);
+ },
+ _reject: function Promise_reject(reason) {
+ this._updateStatus(STATUS_REJECTED, reason);
+ },
+ then: function Promise_then(onResolve, onReject) {
+ var nextPromise = new Promise(function (resolve, reject) {
+ this.resolve = resolve;
+ this.reject = reject;
+ });
+ this._handlers.push({
+ thisPromise: this,
+ onResolve: onResolve,
+ onReject: onReject,
+ nextPromise: nextPromise
+ });
+ HandlerManager.scheduleHandlers(this);
+ return nextPromise;
+ },
+ catch: function Promise_catch(onReject) {
+ return this.then(undefined, onReject);
+ }
+ };
+ globalScope.Promise = Promise;
+ })();
+ (function checkWeakMap() {
+ if (globalScope.WeakMap) {
+ return;
+ }
+ var id = 0;
+ function WeakMap() {
+ this.id = '$weakmap' + id++;
+ }
+ WeakMap.prototype = {
+ has: function has(obj) {
+ if ((typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) !== 'object' && typeof obj !== 'function' || obj === null) {
+ return false;
+ }
+ return !!Object.getOwnPropertyDescriptor(obj, this.id);
+ },
+ get: function get(obj) {
+ return this.has(obj) ? obj[this.id] : undefined;
+ },
+ set: function set(obj, value) {
+ Object.defineProperty(obj, this.id, {
+ value: value,
+ enumerable: false,
+ configurable: true
+ });
+ },
+ delete: function _delete(obj) {
+ delete obj[this.id];
+ }
+ };
+ globalScope.WeakMap = WeakMap;
+ })();
+ (function checkURLConstructor() {
+ var hasWorkingUrl = false;
+ try {
+ if (typeof URL === 'function' && _typeof(URL.prototype) === 'object' && 'origin' in URL.prototype) {
+ var u = new URL('b', 'http://a');
+ u.pathname = 'c%20d';
+ hasWorkingUrl = u.href === 'http://a/c%20d';
+ }
+ } catch (e) {}
+ if (hasWorkingUrl) {
+ return;
+ }
+ var relative = Object.create(null);
+ relative['ftp'] = 21;
+ relative['file'] = 0;
+ relative['gopher'] = 70;
+ relative['http'] = 80;
+ relative['https'] = 443;
+ relative['ws'] = 80;
+ relative['wss'] = 443;
+ var relativePathDotMapping = Object.create(null);
+ relativePathDotMapping['%2e'] = '.';
+ relativePathDotMapping['.%2e'] = '..';
+ relativePathDotMapping['%2e.'] = '..';
+ relativePathDotMapping['%2e%2e'] = '..';
+ function isRelativeScheme(scheme) {
+ return relative[scheme] !== undefined;
+ }
+ function invalid() {
+ clear.call(this);
+ this._isInvalid = true;
+ }
+ function IDNAToASCII(h) {
+ if (h === '') {
+ invalid.call(this);
+ }
+ return h.toLowerCase();
+ }
+ function percentEscape(c) {
+ var unicode = c.charCodeAt(0);
+ if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) === -1) {
+ return c;
+ }
+ return encodeURIComponent(c);
+ }
+ function percentEscapeQuery(c) {
+ var unicode = c.charCodeAt(0);
+ if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) === -1) {
+ return c;
+ }
+ return encodeURIComponent(c);
+ }
+ var EOF,
+ ALPHA = /[a-zA-Z]/,
+ ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;
+ function parse(input, stateOverride, base) {
+ function err(message) {
+ errors.push(message);
+ }
+ var state = stateOverride || 'scheme start',
+ cursor = 0,
+ buffer = '',
+ seenAt = false,
+ seenBracket = false,
+ errors = [];
+ loop: while ((input[cursor - 1] !== EOF || cursor === 0) && !this._isInvalid) {
+ var c = input[cursor];
+ switch (state) {
+ case 'scheme start':
+ if (c && ALPHA.test(c)) {
+ buffer += c.toLowerCase();
+ state = 'scheme';
+ } else if (!stateOverride) {
+ buffer = '';
+ state = 'no scheme';
+ continue;
+ } else {
+ err('Invalid scheme.');
+ break loop;
+ }
+ break;
+ case 'scheme':
+ if (c && ALPHANUMERIC.test(c)) {
+ buffer += c.toLowerCase();
+ } else if (c === ':') {
+ this._scheme = buffer;
+ buffer = '';
+ if (stateOverride) {
+ break loop;
+ }
+ if (isRelativeScheme(this._scheme)) {
+ this._isRelative = true;
+ }
+ if (this._scheme === 'file') {
+ state = 'relative';
+ } else if (this._isRelative && base && base._scheme === this._scheme) {
+ state = 'relative or authority';
+ } else if (this._isRelative) {
+ state = 'authority first slash';
+ } else {
+ state = 'scheme data';
+ }
+ } else if (!stateOverride) {
+ buffer = '';
+ cursor = 0;
+ state = 'no scheme';
+ continue;
+ } else if (c === EOF) {
+ break loop;
+ } else {
+ err('Code point not allowed in scheme: ' + c);
+ break loop;
+ }
+ break;
+ case 'scheme data':
+ if (c === '?') {
+ this._query = '?';
+ state = 'query';
+ } else if (c === '#') {
+ this._fragment = '#';
+ state = 'fragment';
+ } else {
+ if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
+ this._schemeData += percentEscape(c);
+ }
+ }
+ break;
+ case 'no scheme':
+ if (!base || !isRelativeScheme(base._scheme)) {
+ err('Missing scheme.');
+ invalid.call(this);
+ } else {
+ state = 'relative';
+ continue;
+ }
+ break;
+ case 'relative or authority':
+ if (c === '/' && input[cursor + 1] === '/') {
+ state = 'authority ignore slashes';
+ } else {
+ err('Expected /, got: ' + c);
+ state = 'relative';
+ continue;
+ }
+ break;
+ case 'relative':
+ this._isRelative = true;
+ if (this._scheme !== 'file') {
+ this._scheme = base._scheme;
+ }
+ if (c === EOF) {
+ this._host = base._host;
+ this._port = base._port;
+ this._path = base._path.slice();
+ this._query = base._query;
+ this._username = base._username;
+ this._password = base._password;
+ break loop;
+ } else if (c === '/' || c === '\\') {
+ if (c === '\\') {
+ err('\\ is an invalid code point.');
+ }
+ state = 'relative slash';
+ } else if (c === '?') {
+ this._host = base._host;
+ this._port = base._port;
+ this._path = base._path.slice();
+ this._query = '?';
+ this._username = base._username;
+ this._password = base._password;
+ state = 'query';
+ } else if (c === '#') {
+ this._host = base._host;
+ this._port = base._port;
+ this._path = base._path.slice();
+ this._query = base._query;
+ this._fragment = '#';
+ this._username = base._username;
+ this._password = base._password;
+ state = 'fragment';
+ } else {
+ var nextC = input[cursor + 1];
+ var nextNextC = input[cursor + 2];
+ if (this._scheme !== 'file' || !ALPHA.test(c) || nextC !== ':' && nextC !== '|' || nextNextC !== EOF && nextNextC !== '/' && nextNextC !== '\\' && nextNextC !== '?' && nextNextC !== '#') {
+ this._host = base._host;
+ this._port = base._port;
+ this._username = base._username;
+ this._password = base._password;
+ this._path = base._path.slice();
+ this._path.pop();
+ }
+ state = 'relative path';
+ continue;
+ }
+ break;
+ case 'relative slash':
+ if (c === '/' || c === '\\') {
+ if (c === '\\') {
+ err('\\ is an invalid code point.');
+ }
+ if (this._scheme === 'file') {
+ state = 'file host';
+ } else {
+ state = 'authority ignore slashes';
+ }
+ } else {
+ if (this._scheme !== 'file') {
+ this._host = base._host;
+ this._port = base._port;
+ this._username = base._username;
+ this._password = base._password;
+ }
+ state = 'relative path';
+ continue;
+ }
+ break;
+ case 'authority first slash':
+ if (c === '/') {
+ state = 'authority second slash';
+ } else {
+ err('Expected \'/\', got: ' + c);
+ state = 'authority ignore slashes';
+ continue;
+ }
+ break;
+ case 'authority second slash':
+ state = 'authority ignore slashes';
+ if (c !== '/') {
+ err('Expected \'/\', got: ' + c);
+ continue;
+ }
+ break;
+ case 'authority ignore slashes':
+ if (c !== '/' && c !== '\\') {
+ state = 'authority';
+ continue;
+ } else {
+ err('Expected authority, got: ' + c);
+ }
+ break;
+ case 'authority':
+ if (c === '@') {
+ if (seenAt) {
+ err('@ already seen.');
+ buffer += '%40';
+ }
+ seenAt = true;
+ for (var i = 0; i < buffer.length; i++) {
+ var cp = buffer[i];
+ if (cp === '\t' || cp === '\n' || cp === '\r') {
+ err('Invalid whitespace in authority.');
+ continue;
+ }
+ if (cp === ':' && this._password === null) {
+ this._password = '';
+ continue;
+ }
+ var tempC = percentEscape(cp);
+ if (this._password !== null) {
+ this._password += tempC;
+ } else {
+ this._username += tempC;
+ }
+ }
+ buffer = '';
+ } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
+ cursor -= buffer.length;
+ buffer = '';
+ state = 'host';
+ continue;
+ } else {
+ buffer += c;
+ }
+ break;
+ case 'file host':
+ if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
+ if (buffer.length === 2 && ALPHA.test(buffer[0]) && (buffer[1] === ':' || buffer[1] === '|')) {
+ state = 'relative path';
+ } else if (buffer.length === 0) {
+ state = 'relative path start';
+ } else {
+ this._host = IDNAToASCII.call(this, buffer);
+ buffer = '';
+ state = 'relative path start';
+ }
+ continue;
+ } else if (c === '\t' || c === '\n' || c === '\r') {
+ err('Invalid whitespace in file host.');
+ } else {
+ buffer += c;
+ }
+ break;
+ case 'host':
+ case 'hostname':
+ if (c === ':' && !seenBracket) {
+ this._host = IDNAToASCII.call(this, buffer);
+ buffer = '';
+ state = 'port';
+ if (stateOverride === 'hostname') {
+ break loop;
+ }
+ } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
+ this._host = IDNAToASCII.call(this, buffer);
+ buffer = '';
+ state = 'relative path start';
+ if (stateOverride) {
+ break loop;
+ }
+ continue;
+ } else if (c !== '\t' && c !== '\n' && c !== '\r') {
+ if (c === '[') {
+ seenBracket = true;
+ } else if (c === ']') {
+ seenBracket = false;
+ }
+ buffer += c;
+ } else {
+ err('Invalid code point in host/hostname: ' + c);
+ }
+ break;
+ case 'port':
+ if (/[0-9]/.test(c)) {
+ buffer += c;
+ } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#' || stateOverride) {
+ if (buffer !== '') {
+ var temp = parseInt(buffer, 10);
+ if (temp !== relative[this._scheme]) {
+ this._port = temp + '';
+ }
+ buffer = '';
+ }
+ if (stateOverride) {
+ break loop;
+ }
+ state = 'relative path start';
+ continue;
+ } else if (c === '\t' || c === '\n' || c === '\r') {
+ err('Invalid code point in port: ' + c);
+ } else {
+ invalid.call(this);
+ }
+ break;
+ case 'relative path start':
+ if (c === '\\') {
+ err('\'\\\' not allowed in path.');
+ }
+ state = 'relative path';
+ if (c !== '/' && c !== '\\') {
+ continue;
+ }
+ break;
+ case 'relative path':
+ if (c === EOF || c === '/' || c === '\\' || !stateOverride && (c === '?' || c === '#')) {
+ if (c === '\\') {
+ err('\\ not allowed in relative path.');
+ }
+ var tmp;
+ if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
+ buffer = tmp;
+ }
+ if (buffer === '..') {
+ this._path.pop();
+ if (c !== '/' && c !== '\\') {
+ this._path.push('');
+ }
+ } else if (buffer === '.' && c !== '/' && c !== '\\') {
+ this._path.push('');
+ } else if (buffer !== '.') {
+ if (this._scheme === 'file' && this._path.length === 0 && buffer.length === 2 && ALPHA.test(buffer[0]) && buffer[1] === '|') {
+ buffer = buffer[0] + ':';
+ }
+ this._path.push(buffer);
+ }
+ buffer = '';
+ if (c === '?') {
+ this._query = '?';
+ state = 'query';
+ } else if (c === '#') {
+ this._fragment = '#';
+ state = 'fragment';
+ }
+ } else if (c !== '\t' && c !== '\n' && c !== '\r') {
+ buffer += percentEscape(c);
+ }
+ break;
+ case 'query':
+ if (!stateOverride && c === '#') {
+ this._fragment = '#';
+ state = 'fragment';
+ } else if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
+ this._query += percentEscapeQuery(c);
+ }
+ break;
+ case 'fragment':
+ if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
+ this._fragment += c;
+ }
+ break;
+ }
+ cursor++;
+ }
+ }
+ function clear() {
+ this._scheme = '';
+ this._schemeData = '';
+ this._username = '';
+ this._password = null;
+ this._host = '';
+ this._port = '';
+ this._path = [];
+ this._query = '';
+ this._fragment = '';
+ this._isInvalid = false;
+ this._isRelative = false;
+ }
+ function JURL(url, base) {
+ if (base !== undefined && !(base instanceof JURL)) {
+ base = new JURL(String(base));
+ }
+ this._url = url;
+ clear.call(this);
+ var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
+ parse.call(this, input, null, base);
+ }
+ JURL.prototype = {
+ toString: function toString() {
+ return this.href;
+ },
+
+ get href() {
+ if (this._isInvalid) {
+ return this._url;
+ }
+ var authority = '';
+ if (this._username !== '' || this._password !== null) {
+ authority = this._username + (this._password !== null ? ':' + this._password : '') + '@';
+ }
+ return this.protocol + (this._isRelative ? '//' + authority + this.host : '') + this.pathname + this._query + this._fragment;
+ },
+ set href(value) {
+ clear.call(this);
+ parse.call(this, value);
+ },
+ get protocol() {
+ return this._scheme + ':';
+ },
+ set protocol(value) {
+ if (this._isInvalid) {
+ return;
+ }
+ parse.call(this, value + ':', 'scheme start');
+ },
+ get host() {
+ return this._isInvalid ? '' : this._port ? this._host + ':' + this._port : this._host;
+ },
+ set host(value) {
+ if (this._isInvalid || !this._isRelative) {
+ return;
+ }
+ parse.call(this, value, 'host');
+ },
+ get hostname() {
+ return this._host;
+ },
+ set hostname(value) {
+ if (this._isInvalid || !this._isRelative) {
+ return;
+ }
+ parse.call(this, value, 'hostname');
+ },
+ get port() {
+ return this._port;
+ },
+ set port(value) {
+ if (this._isInvalid || !this._isRelative) {
+ return;
+ }
+ parse.call(this, value, 'port');
+ },
+ get pathname() {
+ return this._isInvalid ? '' : this._isRelative ? '/' + this._path.join('/') : this._schemeData;
+ },
+ set pathname(value) {
+ if (this._isInvalid || !this._isRelative) {
+ return;
+ }
+ this._path = [];
+ parse.call(this, value, 'relative path start');
+ },
+ get search() {
+ return this._isInvalid || !this._query || this._query === '?' ? '' : this._query;
+ },
+ set search(value) {
+ if (this._isInvalid || !this._isRelative) {
+ return;
+ }
+ this._query = '?';
+ if (value[0] === '?') {
+ value = value.slice(1);
+ }
+ parse.call(this, value, 'query');
+ },
+ get hash() {
+ return this._isInvalid || !this._fragment || this._fragment === '#' ? '' : this._fragment;
+ },
+ set hash(value) {
+ if (this._isInvalid) {
+ return;
+ }
+ this._fragment = '#';
+ if (value[0] === '#') {
+ value = value.slice(1);
+ }
+ parse.call(this, value, 'fragment');
+ },
+ get origin() {
+ var host;
+ if (this._isInvalid || !this._scheme) {
+ return '';
+ }
+ switch (this._scheme) {
+ case 'data':
+ case 'file':
+ case 'javascript':
+ case 'mailto':
+ return 'null';
+ case 'blob':
+ try {
+ return new JURL(this._schemeData).origin || 'null';
+ } catch (_) {}
+ return 'null';
+ }
+ host = this.host;
+ if (!host) {
+ return '';
+ }
+ return this._scheme + '://' + host;
+ }
+ };
+ var OriginalURL = globalScope.URL;
+ if (OriginalURL) {
+ JURL.createObjectURL = function (blob) {
+ return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
+ };
+ JURL.revokeObjectURL = function (url) {
+ OriginalURL.revokeObjectURL(url);
+ };
+ }
+ globalScope.URL = JURL;
+ })();
+}
+
+/***/ }),
+/* 17 */
+/***/ (function(module, exports, __w_pdfjs_require__) {
+
+"use strict";
+
+
+var isReadableStreamSupported = false;
+if (typeof ReadableStream !== 'undefined') {
+ try {
+ new ReadableStream({
+ start: function start(controller) {
+ controller.close();
+ }
+ });
+ isReadableStreamSupported = true;
+ } catch (e) {}
+}
+if (isReadableStreamSupported) {
+ exports.ReadableStream = ReadableStream;
+} else {
+ exports.ReadableStream = __w_pdfjs_require__(10).ReadableStream;
+}
+
+/***/ })
+/******/ ]);
+});
+//# sourceMappingURL=pdf.js.map
diff --git a/public/static/pdf_old/build/pdf.js.map b/public/static/pdf_old/build/pdf.js.map
new file mode 100644
index 000000000..d50a381b4
--- /dev/null
+++ b/public/static/pdf_old/build/pdf.js.map
@@ -0,0 +1 @@
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0x0100000,\n MULTISELECT: 0x0200000,\n DONOTSPELLCHECK: 0x0400000,\n DONOTSCROLL: 0x0800000,\n COMB: 0x1000000,\n RICHTEXT: 0x2000000,\n RADIOSINUNISON: 0x2000000,\n COMMITONSELCHANGE: 0x4000000,\n};\n\nvar AnnotationBorderStyleType = {\n SOLID: 1,\n DASHED: 2,\n BEVELED: 3,\n INSET: 4,\n UNDERLINE: 5,\n};\n\nvar StreamType = {\n UNKNOWN: 0,\n FLATE: 1,\n LZW: 2,\n DCT: 3,\n JPX: 4,\n JBIG: 5,\n A85: 6,\n AHX: 7,\n CCF: 8,\n RL: 9,\n};\n\nvar FontType = {\n UNKNOWN: 0,\n TYPE1: 1,\n TYPE1C: 2,\n CIDFONTTYPE0: 3,\n CIDFONTTYPE0C: 4,\n TRUETYPE: 5,\n CIDFONTTYPE2: 6,\n TYPE3: 7,\n OPENTYPE: 8,\n TYPE0: 9,\n MMTYPE1: 10,\n};\n\nvar VERBOSITY_LEVELS = {\n errors: 0,\n warnings: 1,\n infos: 5,\n};\n\nvar CMapCompressionType = {\n NONE: 0,\n BINARY: 1,\n STREAM: 2,\n};\n\n// All the possible operations for an operator list.\nvar OPS = {\n // Intentionally start from 1 so it is easy to spot bad operators that will be\n // 0's.\n dependency: 1,\n setLineWidth: 2,\n setLineCap: 3,\n setLineJoin: 4,\n setMiterLimit: 5,\n setDash: 6,\n setRenderingIntent: 7,\n setFlatness: 8,\n setGState: 9,\n save: 10,\n restore: 11,\n transform: 12,\n moveTo: 13,\n lineTo: 14,\n curveTo: 15,\n curveTo2: 16,\n curveTo3: 17,\n closePath: 18,\n rectangle: 19,\n stroke: 20,\n closeStroke: 21,\n fill: 22,\n eoFill: 23,\n fillStroke: 24,\n eoFillStroke: 25,\n closeFillStroke: 26,\n closeEOFillStroke: 27,\n endPath: 28,\n clip: 29,\n eoClip: 30,\n beginText: 31,\n endText: 32,\n setCharSpacing: 33,\n setWordSpacing: 34,\n setHScale: 35,\n setLeading: 36,\n setFont: 37,\n setTextRenderingMode: 38,\n setTextRise: 39,\n moveText: 40,\n setLeadingMoveText: 41,\n setTextMatrix: 42,\n nextLine: 43,\n showText: 44,\n showSpacedText: 45,\n nextLineShowText: 46,\n nextLineSetSpacingShowText: 47,\n setCharWidth: 48,\n setCharWidthAndBounds: 49,\n setStrokeColorSpace: 50,\n setFillColorSpace: 51,\n setStrokeColor: 52,\n setStrokeColorN: 53,\n setFillColor: 54,\n setFillColorN: 55,\n setStrokeGray: 56,\n setFillGray: 57,\n setStrokeRGBColor: 58,\n setFillRGBColor: 59,\n setStrokeCMYKColor: 60,\n setFillCMYKColor: 61,\n shadingFill: 62,\n beginInlineImage: 63,\n beginImageData: 64,\n endInlineImage: 65,\n paintXObject: 66,\n markPoint: 67,\n markPointProps: 68,\n beginMarkedContent: 69,\n beginMarkedContentProps: 70,\n endMarkedContent: 71,\n beginCompat: 72,\n endCompat: 73,\n paintFormXObjectBegin: 74,\n paintFormXObjectEnd: 75,\n beginGroup: 76,\n endGroup: 77,\n beginAnnotations: 78,\n endAnnotations: 79,\n beginAnnotation: 80,\n endAnnotation: 81,\n paintJpegXObject: 82,\n paintImageMaskXObject: 83,\n paintImageMaskXObjectGroup: 84,\n paintImageXObject: 85,\n paintInlineImageXObject: 86,\n paintInlineImageXObjectGroup: 87,\n paintImageXObjectRepeat: 88,\n paintImageMaskXObjectRepeat: 89,\n paintSolidColorImageMask: 90,\n constructPath: 91,\n};\n\nvar verbosity = VERBOSITY_LEVELS.warnings;\n\nfunction setVerbosityLevel(level) {\n verbosity = level;\n}\n\nfunction getVerbosityLevel() {\n return verbosity;\n}\n\n// A notice for devs. These are good for things that are helpful to devs, such\n// as warning that Workers were disabled, which is important to devs but not\n// end users.\nfunction info(msg) {\n if (verbosity >= VERBOSITY_LEVELS.infos) {\n console.log('Info: ' + msg);\n }\n}\n\n// Non-fatal warnings.\nfunction warn(msg) {\n if (verbosity >= VERBOSITY_LEVELS.warnings) {\n console.log('Warning: ' + msg);\n }\n}\n\n// Deprecated API function -- display regardless of the PDFJS.verbosity setting.\nfunction deprecated(details) {\n console.log('Deprecated API usage: ' + details);\n}\n\nfunction unreachable(msg) {\n throw new Error(msg);\n}\n\nfunction assert(cond, msg) {\n if (!cond) {\n unreachable(msg);\n }\n}\n\nvar UNSUPPORTED_FEATURES = {\n unknown: 'unknown',\n forms: 'forms',\n javaScript: 'javaScript',\n smask: 'smask',\n shadingPattern: 'shadingPattern',\n font: 'font',\n};\n\n// Checks if URLs have the same origin. For non-HTTP based URLs, returns false.\nfunction isSameOrigin(baseUrl, otherUrl) {\n try {\n var base = new URL(baseUrl);\n if (!base.origin || base.origin === 'null') {\n return false; // non-HTTP url\n }\n } catch (e) {\n return false;\n }\n\n var other = new URL(otherUrl, base);\n return base.origin === other.origin;\n}\n\n// Checks if URLs use one of the whitelisted protocols, e.g. to avoid XSS.\nfunction isValidProtocol(url) {\n if (!url) {\n return false;\n }\n switch (url.protocol) {\n case 'http:':\n case 'https:':\n case 'ftp:':\n case 'mailto:':\n case 'tel:':\n return true;\n default:\n return false;\n }\n}\n\n/**\n * Attempts to create a valid absolute URL (utilizing `isValidProtocol`).\n * @param {URL|string} url - An absolute, or relative, URL.\n * @param {URL|string} baseUrl - An absolute URL.\n * @returns Either a valid {URL}, or `null` otherwise.\n */\nfunction createValidAbsoluteUrl(url, baseUrl) {\n if (!url) {\n return null;\n }\n try {\n var absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);\n if (isValidProtocol(absoluteUrl)) {\n return absoluteUrl;\n }\n } catch (ex) { /* `new URL()` will throw on incorrect data. */ }\n return null;\n}\n\nfunction shadow(obj, prop, value) {\n Object.defineProperty(obj, prop, { value,\n enumerable: true,\n configurable: true,\n writable: false, });\n return value;\n}\n\nfunction getLookupTableFactory(initializer) {\n var lookup;\n return function () {\n if (initializer) {\n lookup = Object.create(null);\n initializer(lookup);\n initializer = null;\n }\n return lookup;\n };\n}\n\nvar PasswordResponses = {\n NEED_PASSWORD: 1,\n INCORRECT_PASSWORD: 2,\n};\n\nvar PasswordException = (function PasswordExceptionClosure() {\n function PasswordException(msg, code) {\n this.name = 'PasswordException';\n this.message = msg;\n this.code = code;\n }\n\n PasswordException.prototype = new Error();\n PasswordException.constructor = PasswordException;\n\n return PasswordException;\n})();\n\nvar UnknownErrorException = (function UnknownErrorExceptionClosure() {\n function UnknownErrorException(msg, details) {\n this.name = 'UnknownErrorException';\n this.message = msg;\n this.details = details;\n }\n\n UnknownErrorException.prototype = new Error();\n UnknownErrorException.constructor = UnknownErrorException;\n\n return UnknownErrorException;\n})();\n\nvar InvalidPDFException = (function InvalidPDFExceptionClosure() {\n function InvalidPDFException(msg) {\n this.name = 'InvalidPDFException';\n this.message = msg;\n }\n\n InvalidPDFException.prototype = new Error();\n InvalidPDFException.constructor = InvalidPDFException;\n\n return InvalidPDFException;\n})();\n\nvar MissingPDFException = (function MissingPDFExceptionClosure() {\n function MissingPDFException(msg) {\n this.name = 'MissingPDFException';\n this.message = msg;\n }\n\n MissingPDFException.prototype = new Error();\n MissingPDFException.constructor = MissingPDFException;\n\n return MissingPDFException;\n})();\n\nvar UnexpectedResponseException =\n (function UnexpectedResponseExceptionClosure() {\n function UnexpectedResponseException(msg, status) {\n this.name = 'UnexpectedResponseException';\n this.message = msg;\n this.status = status;\n }\n\n UnexpectedResponseException.prototype = new Error();\n UnexpectedResponseException.constructor = UnexpectedResponseException;\n\n return UnexpectedResponseException;\n})();\n\nvar NotImplementedException = (function NotImplementedExceptionClosure() {\n function NotImplementedException(msg) {\n this.message = msg;\n }\n\n NotImplementedException.prototype = new Error();\n NotImplementedException.prototype.name = 'NotImplementedException';\n NotImplementedException.constructor = NotImplementedException;\n\n return NotImplementedException;\n})();\n\nvar MissingDataException = (function MissingDataExceptionClosure() {\n function MissingDataException(begin, end) {\n this.begin = begin;\n this.end = end;\n this.message = 'Missing data [' + begin + ', ' + end + ')';\n }\n\n MissingDataException.prototype = new Error();\n MissingDataException.prototype.name = 'MissingDataException';\n MissingDataException.constructor = MissingDataException;\n\n return MissingDataException;\n})();\n\nvar XRefParseException = (function XRefParseExceptionClosure() {\n function XRefParseException(msg) {\n this.message = msg;\n }\n\n XRefParseException.prototype = new Error();\n XRefParseException.prototype.name = 'XRefParseException';\n XRefParseException.constructor = XRefParseException;\n\n return XRefParseException;\n})();\n\n/**\n * Error caused during parsing PDF data.\n */\nlet FormatError = (function FormatErrorClosure() {\n function FormatError(msg) {\n this.message = msg;\n }\n\n FormatError.prototype = new Error();\n FormatError.prototype.name = 'FormatError';\n FormatError.constructor = FormatError;\n\n return FormatError;\n})();\n\n/**\n * Error used to indicate task cancellation.\n */\nlet AbortException = (function AbortExceptionClosure() {\n function AbortException(msg) {\n this.name = 'AbortException';\n this.message = msg;\n }\n\n AbortException.prototype = new Error();\n AbortException.constructor = AbortException;\n\n return AbortException;\n})();\n\nvar NullCharactersRegExp = /\\x00/g;\n\nfunction removeNullCharacters(str) {\n if (typeof str !== 'string') {\n warn('The argument for removeNullCharacters must be a string.');\n return str;\n }\n return str.replace(NullCharactersRegExp, '');\n}\n\nfunction bytesToString(bytes) {\n assert(bytes !== null && typeof bytes === 'object' &&\n bytes.length !== undefined, 'Invalid argument for bytesToString');\n var length = bytes.length;\n var MAX_ARGUMENT_COUNT = 8192;\n if (length < MAX_ARGUMENT_COUNT) {\n return String.fromCharCode.apply(null, bytes);\n }\n var strBuf = [];\n for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {\n var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);\n var chunk = bytes.subarray(i, chunkEnd);\n strBuf.push(String.fromCharCode.apply(null, chunk));\n }\n return strBuf.join('');\n}\n\nfunction stringToBytes(str) {\n assert(typeof str === 'string', 'Invalid argument for stringToBytes');\n var length = str.length;\n var bytes = new Uint8Array(length);\n for (var i = 0; i < length; ++i) {\n bytes[i] = str.charCodeAt(i) & 0xFF;\n }\n return bytes;\n}\n\n/**\n * Gets length of the array (Array, Uint8Array, or string) in bytes.\n * @param {Array|Uint8Array|string} arr\n * @returns {number}\n */\nfunction arrayByteLength(arr) {\n if (arr.length !== undefined) {\n return arr.length;\n }\n assert(arr.byteLength !== undefined);\n return arr.byteLength;\n}\n\n/**\n * Combines array items (arrays) into single Uint8Array object.\n * @param {Array} arr - the array of the arrays (Array, Uint8Array, or string).\n * @returns {Uint8Array}\n */\nfunction arraysToBytes(arr) {\n // Shortcut: if first and only item is Uint8Array, return it.\n if (arr.length === 1 && (arr[0] instanceof Uint8Array)) {\n return arr[0];\n }\n var resultLength = 0;\n var i, ii = arr.length;\n var item, itemLength;\n for (i = 0; i < ii; i++) {\n item = arr[i];\n itemLength = arrayByteLength(item);\n resultLength += itemLength;\n }\n var pos = 0;\n var data = new Uint8Array(resultLength);\n for (i = 0; i < ii; i++) {\n item = arr[i];\n if (!(item instanceof Uint8Array)) {\n if (typeof item === 'string') {\n item = stringToBytes(item);\n } else {\n item = new Uint8Array(item);\n }\n }\n itemLength = item.byteLength;\n data.set(item, pos);\n pos += itemLength;\n }\n return data;\n}\n\nfunction string32(value) {\n return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,\n (value >> 8) & 0xff, value & 0xff);\n}\n\nfunction log2(x) {\n var n = 1, i = 0;\n while (x > n) {\n n <<= 1;\n i++;\n }\n return i;\n}\n\nfunction readInt8(data, start) {\n return (data[start] << 24) >> 24;\n}\n\nfunction readUint16(data, offset) {\n return (data[offset] << 8) | data[offset + 1];\n}\n\nfunction readUint32(data, offset) {\n return ((data[offset] << 24) | (data[offset + 1] << 16) |\n (data[offset + 2] << 8) | data[offset + 3]) >>> 0;\n}\n\n// Lazy test the endianness of the platform\n// NOTE: This will be 'true' for simulated TypedArrays\nfunction isLittleEndian() {\n var buffer8 = new Uint8Array(4);\n buffer8[0] = 1;\n var view32 = new Uint32Array(buffer8.buffer, 0, 1);\n return (view32[0] === 1);\n}\n\n// Checks if it's possible to eval JS expressions.\nfunction isEvalSupported() {\n try {\n new Function(''); // eslint-disable-line no-new, no-new-func\n return true;\n } catch (e) {\n return false;\n }\n}\n\nvar IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];\n\nvar Util = (function UtilClosure() {\n function Util() {}\n\n var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];\n\n // makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids\n // creating many intermediate strings.\n Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {\n rgbBuf[1] = r;\n rgbBuf[3] = g;\n rgbBuf[5] = b;\n return rgbBuf.join('');\n };\n\n // Concatenates two transformation matrices together and returns the result.\n Util.transform = function Util_transform(m1, m2) {\n return [\n m1[0] * m2[0] + m1[2] * m2[1],\n m1[1] * m2[0] + m1[3] * m2[1],\n m1[0] * m2[2] + m1[2] * m2[3],\n m1[1] * m2[2] + m1[3] * m2[3],\n m1[0] * m2[4] + m1[2] * m2[5] + m1[4],\n m1[1] * m2[4] + m1[3] * m2[5] + m1[5]\n ];\n };\n\n // For 2d affine transforms\n Util.applyTransform = function Util_applyTransform(p, m) {\n var xt = p[0] * m[0] + p[1] * m[2] + m[4];\n var yt = p[0] * m[1] + p[1] * m[3] + m[5];\n return [xt, yt];\n };\n\n Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {\n var d = m[0] * m[3] - m[1] * m[2];\n var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;\n var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;\n return [xt, yt];\n };\n\n // Applies the transform to the rectangle and finds the minimum axially\n // aligned bounding box.\n Util.getAxialAlignedBoundingBox =\n function Util_getAxialAlignedBoundingBox(r, m) {\n\n var p1 = Util.applyTransform(r, m);\n var p2 = Util.applyTransform(r.slice(2, 4), m);\n var p3 = Util.applyTransform([r[0], r[3]], m);\n var p4 = Util.applyTransform([r[2], r[1]], m);\n return [\n Math.min(p1[0], p2[0], p3[0], p4[0]),\n Math.min(p1[1], p2[1], p3[1], p4[1]),\n Math.max(p1[0], p2[0], p3[0], p4[0]),\n Math.max(p1[1], p2[1], p3[1], p4[1])\n ];\n };\n\n Util.inverseTransform = function Util_inverseTransform(m) {\n var d = m[0] * m[3] - m[1] * m[2];\n return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,\n (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];\n };\n\n // Apply a generic 3d matrix M on a 3-vector v:\n // | a b c | | X |\n // | d e f | x | Y |\n // | g h i | | Z |\n // M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],\n // with v as [X,Y,Z]\n Util.apply3dTransform = function Util_apply3dTransform(m, v) {\n return [\n m[0] * v[0] + m[1] * v[1] + m[2] * v[2],\n m[3] * v[0] + m[4] * v[1] + m[5] * v[2],\n m[6] * v[0] + m[7] * v[1] + m[8] * v[2]\n ];\n };\n\n // This calculation uses Singular Value Decomposition.\n // The SVD can be represented with formula A = USV. We are interested in the\n // matrix S here because it represents the scale values.\n Util.singularValueDecompose2dScale =\n function Util_singularValueDecompose2dScale(m) {\n\n var transpose = [m[0], m[2], m[1], m[3]];\n\n // Multiply matrix m with its transpose.\n var a = m[0] * transpose[0] + m[1] * transpose[2];\n var b = m[0] * transpose[1] + m[1] * transpose[3];\n var c = m[2] * transpose[0] + m[3] * transpose[2];\n var d = m[2] * transpose[1] + m[3] * transpose[3];\n\n // Solve the second degree polynomial to get roots.\n var first = (a + d) / 2;\n var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;\n var sx = first + second || 1;\n var sy = first - second || 1;\n\n // Scale values are the square roots of the eigenvalues.\n return [Math.sqrt(sx), Math.sqrt(sy)];\n };\n\n // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)\n // For coordinate systems whose origin lies in the bottom-left, this\n // means normalization to (BL,TR) ordering. For systems with origin in the\n // top-left, this means (TL,BR) ordering.\n Util.normalizeRect = function Util_normalizeRect(rect) {\n var r = rect.slice(0); // clone rect\n if (rect[0] > rect[2]) {\n r[0] = rect[2];\n r[2] = rect[0];\n }\n if (rect[1] > rect[3]) {\n r[1] = rect[3];\n r[3] = rect[1];\n }\n return r;\n };\n\n // Returns a rectangle [x1, y1, x2, y2] corresponding to the\n // intersection of rect1 and rect2. If no intersection, returns 'false'\n // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]\n Util.intersect = function Util_intersect(rect1, rect2) {\n function compare(a, b) {\n return a - b;\n }\n\n // Order points along the axes\n var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),\n orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),\n result = [];\n\n rect1 = Util.normalizeRect(rect1);\n rect2 = Util.normalizeRect(rect2);\n\n // X: first and second points belong to different rectangles?\n if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||\n (orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {\n // Intersection must be between second and third points\n result[0] = orderedX[1];\n result[2] = orderedX[2];\n } else {\n return false;\n }\n\n // Y: first and second points belong to different rectangles?\n if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||\n (orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {\n // Intersection must be between second and third points\n result[1] = orderedY[1];\n result[3] = orderedY[2];\n } else {\n return false;\n }\n\n return result;\n };\n\n Util.sign = function Util_sign(num) {\n return num < 0 ? -1 : 1;\n };\n\n var ROMAN_NUMBER_MAP = [\n '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM',\n '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC',\n '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'\n ];\n /**\n * Converts positive integers to (upper case) Roman numerals.\n * @param {integer} number - The number that should be converted.\n * @param {boolean} lowerCase - Indicates if the result should be converted\n * to lower case letters. The default is false.\n * @return {string} The resulting Roman number.\n */\n Util.toRoman = function Util_toRoman(number, lowerCase) {\n assert(isInt(number) && number > 0,\n 'The number should be a positive integer.');\n var pos, romanBuf = [];\n // Thousands\n while (number >= 1000) {\n number -= 1000;\n romanBuf.push('M');\n }\n // Hundreds\n pos = (number / 100) | 0;\n number %= 100;\n romanBuf.push(ROMAN_NUMBER_MAP[pos]);\n // Tens\n pos = (number / 10) | 0;\n number %= 10;\n romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);\n // Ones\n romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);\n\n var romanStr = romanBuf.join('');\n return (lowerCase ? romanStr.toLowerCase() : romanStr);\n };\n\n Util.appendToArray = function Util_appendToArray(arr1, arr2) {\n Array.prototype.push.apply(arr1, arr2);\n };\n\n Util.prependToArray = function Util_prependToArray(arr1, arr2) {\n Array.prototype.unshift.apply(arr1, arr2);\n };\n\n Util.extendObj = function extendObj(obj1, obj2) {\n for (var key in obj2) {\n obj1[key] = obj2[key];\n }\n };\n\n Util.getInheritableProperty =\n function Util_getInheritableProperty(dict, name, getArray) {\n while (dict && !dict.has(name)) {\n dict = dict.get('Parent');\n }\n if (!dict) {\n return null;\n }\n return getArray ? dict.getArray(name) : dict.get(name);\n };\n\n Util.inherit = function Util_inherit(sub, base, prototype) {\n sub.prototype = Object.create(base.prototype);\n sub.prototype.constructor = sub;\n for (var prop in prototype) {\n sub.prototype[prop] = prototype[prop];\n }\n };\n\n Util.loadScript = function Util_loadScript(src, callback) {\n var script = document.createElement('script');\n var loaded = false;\n script.setAttribute('src', src);\n if (callback) {\n script.onload = function() {\n if (!loaded) {\n callback();\n }\n loaded = true;\n };\n }\n document.getElementsByTagName('head')[0].appendChild(script);\n };\n\n return Util;\n})();\n\n/**\n * PDF page viewport created based on scale, rotation and offset.\n * @class\n * @alias PageViewport\n */\nvar PageViewport = (function PageViewportClosure() {\n /**\n * @constructor\n * @private\n * @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.\n * @param scale {number} scale of the viewport.\n * @param rotation {number} rotations of the viewport in degrees.\n * @param offsetX {number} offset X\n * @param offsetY {number} offset Y\n * @param dontFlip {boolean} if true, axis Y will not be flipped.\n */\n function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {\n this.viewBox = viewBox;\n this.scale = scale;\n this.rotation = rotation;\n this.offsetX = offsetX;\n this.offsetY = offsetY;\n\n // creating transform to convert pdf coordinate system to the normal\n // canvas like coordinates taking in account scale and rotation\n var centerX = (viewBox[2] + viewBox[0]) / 2;\n var centerY = (viewBox[3] + viewBox[1]) / 2;\n var rotateA, rotateB, rotateC, rotateD;\n rotation = rotation % 360;\n rotation = rotation < 0 ? rotation + 360 : rotation;\n switch (rotation) {\n case 180:\n rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;\n break;\n case 90:\n rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;\n break;\n case 270:\n rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;\n break;\n // case 0:\n default:\n rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;\n break;\n }\n\n if (dontFlip) {\n rotateC = -rotateC; rotateD = -rotateD;\n }\n\n var offsetCanvasX, offsetCanvasY;\n var width, height;\n if (rotateA === 0) {\n offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;\n offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;\n width = Math.abs(viewBox[3] - viewBox[1]) * scale;\n height = Math.abs(viewBox[2] - viewBox[0]) * scale;\n } else {\n offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;\n offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;\n width = Math.abs(viewBox[2] - viewBox[0]) * scale;\n height = Math.abs(viewBox[3] - viewBox[1]) * scale;\n }\n // creating transform for the following operations:\n // translate(-centerX, -centerY), rotate and flip vertically,\n // scale, and translate(offsetCanvasX, offsetCanvasY)\n this.transform = [\n rotateA * scale,\n rotateB * scale,\n rotateC * scale,\n rotateD * scale,\n offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,\n offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY\n ];\n\n this.width = width;\n this.height = height;\n this.fontScale = scale;\n }\n PageViewport.prototype = /** @lends PageViewport.prototype */ {\n /**\n * Clones viewport with additional properties.\n * @param args {Object} (optional) If specified, may contain the 'scale' or\n * 'rotation' properties to override the corresponding properties in\n * the cloned viewport.\n * @returns {PageViewport} Cloned viewport.\n */\n clone: function PageViewPort_clone(args) {\n args = args || {};\n var scale = 'scale' in args ? args.scale : this.scale;\n var rotation = 'rotation' in args ? args.rotation : this.rotation;\n return new PageViewport(this.viewBox.slice(), scale, rotation,\n this.offsetX, this.offsetY, args.dontFlip);\n },\n /**\n * Converts PDF point to the viewport coordinates. For examples, useful for\n * converting PDF location into canvas pixel coordinates.\n * @param x {number} X coordinate.\n * @param y {number} Y coordinate.\n * @returns {Object} Object that contains 'x' and 'y' properties of the\n * point in the viewport coordinate space.\n * @see {@link convertToPdfPoint}\n * @see {@link convertToViewportRectangle}\n */\n convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {\n return Util.applyTransform([x, y], this.transform);\n },\n /**\n * Converts PDF rectangle to the viewport coordinates.\n * @param rect {Array} xMin, yMin, xMax and yMax coordinates.\n * @returns {Array} Contains corresponding coordinates of the rectangle\n * in the viewport coordinate space.\n * @see {@link convertToViewportPoint}\n */\n convertToViewportRectangle:\n function PageViewport_convertToViewportRectangle(rect) {\n var tl = Util.applyTransform([rect[0], rect[1]], this.transform);\n var br = Util.applyTransform([rect[2], rect[3]], this.transform);\n return [tl[0], tl[1], br[0], br[1]];\n },\n /**\n * Converts viewport coordinates to the PDF location. For examples, useful\n * for converting canvas pixel location into PDF one.\n * @param x {number} X coordinate.\n * @param y {number} Y coordinate.\n * @returns {Object} Object that contains 'x' and 'y' properties of the\n * point in the PDF coordinate space.\n * @see {@link convertToViewportPoint}\n */\n convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {\n return Util.applyInverseTransform([x, y], this.transform);\n },\n };\n return PageViewport;\n})();\n\nvar PDFStringTranslateTable = [\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,\n 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,\n 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,\n 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC\n];\n\nfunction stringToPDFString(str) {\n var i, n = str.length, strBuf = [];\n if (str[0] === '\\xFE' && str[1] === '\\xFF') {\n // UTF16BE BOM\n for (i = 2; i < n; i += 2) {\n strBuf.push(String.fromCharCode(\n (str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));\n }\n } else {\n for (i = 0; i < n; ++i) {\n var code = PDFStringTranslateTable[str.charCodeAt(i)];\n strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));\n }\n }\n return strBuf.join('');\n}\n\nfunction stringToUTF8String(str) {\n return decodeURIComponent(escape(str));\n}\n\nfunction utf8StringToString(str) {\n return unescape(encodeURIComponent(str));\n}\n\nfunction isEmptyObj(obj) {\n for (var key in obj) {\n return false;\n }\n return true;\n}\n\nfunction isBool(v) {\n return typeof v === 'boolean';\n}\n\nfunction isInt(v) {\n return typeof v === 'number' && ((v | 0) === v);\n}\n\nfunction isNum(v) {\n return typeof v === 'number';\n}\n\nfunction isString(v) {\n return typeof v === 'string';\n}\n\nfunction isArray(v) {\n return v instanceof Array;\n}\n\nfunction isArrayBuffer(v) {\n return typeof v === 'object' && v !== null && v.byteLength !== undefined;\n}\n\n// Checks if ch is one of the following characters: SPACE, TAB, CR or LF.\nfunction isSpace(ch) {\n return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A);\n}\n\nfunction isNodeJS() {\n // eslint-disable-next-line no-undef\n return typeof process === 'object' && process + '' === '[object process]';\n}\n\n/**\n * Promise Capability object.\n *\n * @typedef {Object} PromiseCapability\n * @property {Promise} promise - A promise object.\n * @property {function} resolve - Fulfills the promise.\n * @property {function} reject - Rejects the promise.\n */\n\n/**\n * Creates a promise capability object.\n * @alias createPromiseCapability\n *\n * @return {PromiseCapability} A capability object contains:\n * - a Promise, resolve and reject methods.\n */\nfunction createPromiseCapability() {\n var capability = {};\n capability.promise = new Promise(function (resolve, reject) {\n capability.resolve = resolve;\n capability.reject = reject;\n });\n return capability;\n}\n\nvar StatTimer = (function StatTimerClosure() {\n function rpad(str, pad, length) {\n while (str.length < length) {\n str += pad;\n }\n return str;\n }\n function StatTimer() {\n this.started = Object.create(null);\n this.times = [];\n this.enabled = true;\n }\n StatTimer.prototype = {\n time: function StatTimer_time(name) {\n if (!this.enabled) {\n return;\n }\n if (name in this.started) {\n warn('Timer is already running for ' + name);\n }\n this.started[name] = Date.now();\n },\n timeEnd: function StatTimer_timeEnd(name) {\n if (!this.enabled) {\n return;\n }\n if (!(name in this.started)) {\n warn('Timer has not been started for ' + name);\n }\n this.times.push({\n 'name': name,\n 'start': this.started[name],\n 'end': Date.now(),\n });\n // Remove timer from started so it can be called again.\n delete this.started[name];\n },\n toString: function StatTimer_toString() {\n var i, ii;\n var times = this.times;\n var out = '';\n // Find the longest name for padding purposes.\n var longest = 0;\n for (i = 0, ii = times.length; i < ii; ++i) {\n var name = times[i]['name'];\n if (name.length > longest) {\n longest = name.length;\n }\n }\n for (i = 0, ii = times.length; i < ii; ++i) {\n var span = times[i];\n var duration = span.end - span.start;\n out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\\n';\n }\n return out;\n },\n };\n return StatTimer;\n})();\n\nvar createBlob = function createBlob(data, contentType) {\n if (typeof Blob !== 'undefined') {\n return new Blob([data], { type: contentType, });\n }\n throw new Error('The \"Blob\" constructor is not supported.');\n};\n\nvar createObjectURL = (function createObjectURLClosure() {\n // Blob/createObjectURL is not available, falling back to data schema.\n var digits =\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\n return function createObjectURL(data, contentType, forceDataSchema = false) {\n if (!forceDataSchema && URL.createObjectURL) {\n var blob = createBlob(data, contentType);\n return URL.createObjectURL(blob);\n }\n\n var buffer = 'data:' + contentType + ';base64,';\n for (var i = 0, ii = data.length; i < ii; i += 3) {\n var b1 = data[i] & 0xFF;\n var b2 = data[i + 1] & 0xFF;\n var b3 = data[i + 2] & 0xFF;\n var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);\n var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;\n var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;\n buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];\n }\n return buffer;\n };\n})();\n\nfunction resolveCall(fn, args, thisArg = null) {\n if (!fn) {\n return Promise.resolve(undefined);\n }\n return new Promise((resolve, reject) => {\n resolve(fn.apply(thisArg, args));\n });\n}\n\nfunction wrapReason(reason) {\n if (typeof reason !== 'object') {\n return reason;\n }\n switch (reason.name) {\n case 'AbortException':\n return new AbortException(reason.message);\n case 'MissingPDFException':\n return new MissingPDFException(reason.message);\n case 'UnexpectedResponseException':\n return new UnexpectedResponseException(reason.message, reason.status);\n default:\n return new UnknownErrorException(reason.message, reason.details);\n }\n}\n\nfunction resolveOrReject(capability, success, reason) {\n if (success) {\n capability.resolve();\n } else {\n capability.reject(reason);\n }\n}\n\nfunction finalize(promise) {\n return Promise.resolve(promise).catch(() => {});\n}\n\nfunction MessageHandler(sourceName, targetName, comObj) {\n this.sourceName = sourceName;\n this.targetName = targetName;\n this.comObj = comObj;\n this.callbackId = 1;\n this.streamId = 1;\n this.postMessageTransfers = true;\n this.streamSinks = Object.create(null);\n this.streamControllers = Object.create(null);\n let callbacksCapabilities = this.callbacksCapabilities = Object.create(null);\n let ah = this.actionHandler = Object.create(null);\n\n this._onComObjOnMessage = (event) => {\n let data = event.data;\n if (data.targetName !== this.sourceName) {\n return;\n }\n if (data.stream) {\n this._processStreamMessage(data);\n } else if (data.isReply) {\n let callbackId = data.callbackId;\n if (data.callbackId in callbacksCapabilities) {\n let callback = callbacksCapabilities[callbackId];\n delete callbacksCapabilities[callbackId];\n if ('error' in data) {\n callback.reject(wrapReason(data.error));\n } else {\n callback.resolve(data.data);\n }\n } else {\n throw new Error(`Cannot resolve callback ${callbackId}`);\n }\n } else if (data.action in ah) {\n let action = ah[data.action];\n if (data.callbackId) {\n let sourceName = this.sourceName;\n let targetName = data.sourceName;\n Promise.resolve().then(function () {\n return action[0].call(action[1], data.data);\n }).then((result) => {\n comObj.postMessage({\n sourceName,\n targetName,\n isReply: true,\n callbackId: data.callbackId,\n data: result,\n });\n }, (reason) => {\n if (reason instanceof Error) {\n // Serialize error to avoid \"DataCloneError\"\n reason = reason + '';\n }\n comObj.postMessage({\n sourceName,\n targetName,\n isReply: true,\n callbackId: data.callbackId,\n error: reason,\n });\n });\n } else if (data.streamId) {\n this._createStreamSink(data);\n } else {\n action[0].call(action[1], data.data);\n }\n } else {\n throw new Error(`Unknown action from worker: ${data.action}`);\n }\n };\n comObj.addEventListener('message', this._onComObjOnMessage);\n}\n\nMessageHandler.prototype = {\n on(actionName, handler, scope) {\n var ah = this.actionHandler;\n if (ah[actionName]) {\n throw new Error(`There is already an actionName called \"${actionName}\"`);\n }\n ah[actionName] = [handler, scope];\n },\n /**\n * Sends a message to the comObj to invoke the action with the supplied data.\n * @param {String} actionName - Action to call.\n * @param {JSON} data - JSON data to send.\n * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers\n */\n send(actionName, data, transfers) {\n var message = {\n sourceName: this.sourceName,\n targetName: this.targetName,\n action: actionName,\n data,\n };\n this.postMessage(message, transfers);\n },\n /**\n * Sends a message to the comObj to invoke the action with the supplied data.\n * Expects that the other side will callback with the response.\n * @param {String} actionName - Action to call.\n * @param {JSON} data - JSON data to send.\n * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers.\n * @returns {Promise} Promise to be resolved with response data.\n */\n sendWithPromise(actionName, data, transfers) {\n var callbackId = this.callbackId++;\n var message = {\n sourceName: this.sourceName,\n targetName: this.targetName,\n action: actionName,\n data,\n callbackId,\n };\n var capability = createPromiseCapability();\n this.callbacksCapabilities[callbackId] = capability;\n try {\n this.postMessage(message, transfers);\n } catch (e) {\n capability.reject(e);\n }\n return capability.promise;\n },\n /**\n * Sends a message to the comObj to invoke the action with the supplied data.\n * Expect that the other side will callback to signal 'start_complete'.\n * @param {String} actionName - Action to call.\n * @param {JSON} data - JSON data to send.\n * @param {Object} queueingStrategy - strategy to signal backpressure based on\n * internal queue.\n * @param {Array} [transfers] - Optional list of transfers/ArrayBuffers.\n * @return {ReadableStream} ReadableStream to read data in chunks.\n */\n sendWithStream(actionName, data, queueingStrategy, transfers) {\n let streamId = this.streamId++;\n let sourceName = this.sourceName;\n let targetName = this.targetName;\n\n return new ReadableStream({\n start: (controller) => {\n let startCapability = createPromiseCapability();\n this.streamControllers[streamId] = {\n controller,\n startCall: startCapability,\n isClosed: false,\n };\n this.postMessage({\n sourceName,\n targetName,\n action: actionName,\n streamId,\n data,\n desiredSize: controller.desiredSize,\n });\n // Return Promise for Async process, to signal success/failure.\n return startCapability.promise;\n },\n\n pull: (controller) => {\n let pullCapability = createPromiseCapability();\n this.streamControllers[streamId].pullCall = pullCapability;\n this.postMessage({\n sourceName,\n targetName,\n stream: 'pull',\n streamId,\n desiredSize: controller.desiredSize,\n });\n // Returning Promise will not call \"pull\"\n // again until current pull is resolved.\n return pullCapability.promise;\n },\n\n cancel: (reason) => {\n let cancelCapability = createPromiseCapability();\n this.streamControllers[streamId].cancelCall = cancelCapability;\n this.streamControllers[streamId].isClosed = true;\n this.postMessage({\n sourceName,\n targetName,\n stream: 'cancel',\n reason,\n streamId,\n });\n // Return Promise to signal success or failure.\n return cancelCapability.promise;\n },\n }, queueingStrategy);\n },\n\n _createStreamSink(data) {\n let self = this;\n let action = this.actionHandler[data.action];\n let streamId = data.streamId;\n let desiredSize = data.desiredSize;\n let sourceName = this.sourceName;\n let targetName = data.sourceName;\n let capability = createPromiseCapability();\n\n let sendStreamRequest = ({ stream, chunk, transfers,\n success, reason, }) => {\n this.postMessage({ sourceName, targetName, stream, streamId,\n chunk, success, reason, }, transfers);\n };\n\n let streamSink = {\n enqueue(chunk, size = 1, transfers) {\n if (this.isCancelled) {\n return;\n }\n let lastDesiredSize = this.desiredSize;\n this.desiredSize -= size;\n // Enqueue decreases the desiredSize property of sink,\n // so when it changes from positive to negative,\n // set ready as unresolved promise.\n if (lastDesiredSize > 0 && this.desiredSize <= 0) {\n this.sinkCapability = createPromiseCapability();\n this.ready = this.sinkCapability.promise;\n }\n sendStreamRequest({ stream: 'enqueue', chunk, transfers, });\n },\n\n close() {\n if (this.isCancelled) {\n return;\n }\n sendStreamRequest({ stream: 'close', });\n delete self.streamSinks[streamId];\n },\n\n error(reason) {\n if (this.isCancelled) {\n return;\n }\n this.isCancelled = true;\n sendStreamRequest({ stream: 'error', reason, });\n },\n\n sinkCapability: capability,\n onPull: null,\n onCancel: null,\n isCancelled: false,\n desiredSize,\n ready: null,\n };\n\n streamSink.sinkCapability.resolve();\n streamSink.ready = streamSink.sinkCapability.promise;\n this.streamSinks[streamId] = streamSink;\n resolveCall(action[0], [data.data, streamSink], action[1]).then(() => {\n sendStreamRequest({ stream: 'start_complete', success: true, });\n }, (reason) => {\n sendStreamRequest({ stream: 'start_complete', success: false, reason, });\n });\n },\n\n _processStreamMessage(data) {\n let sourceName = this.sourceName;\n let targetName = data.sourceName;\n let streamId = data.streamId;\n\n let sendStreamResponse = ({ stream, success, reason, }) => {\n this.comObj.postMessage({ sourceName, targetName, stream,\n success, streamId, reason, });\n };\n\n let deleteStreamController = () => {\n // Delete streamController only when start, pull and\n // cancel callbacks are resolved, to avoid \"TypeError\".\n Promise.all([\n this.streamControllers[data.streamId].startCall,\n this.streamControllers[data.streamId].pullCall,\n this.streamControllers[data.streamId].cancelCall\n ].map(function(capability) {\n return capability && finalize(capability.promise);\n })).then(() => {\n delete this.streamControllers[data.streamId];\n });\n };\n\n switch (data.stream) {\n case 'start_complete':\n resolveOrReject(this.streamControllers[data.streamId].startCall,\n data.success, wrapReason(data.reason));\n break;\n case 'pull_complete':\n resolveOrReject(this.streamControllers[data.streamId].pullCall,\n data.success, wrapReason(data.reason));\n break;\n case 'pull':\n // Ignore any pull after close is called.\n if (!this.streamSinks[data.streamId]) {\n sendStreamResponse({ stream: 'pull_complete', success: true, });\n break;\n }\n // Pull increases the desiredSize property of sink,\n // so when it changes from negative to positive,\n // set ready property as resolved promise.\n if (this.streamSinks[data.streamId].desiredSize <= 0 &&\n data.desiredSize > 0) {\n this.streamSinks[data.streamId].sinkCapability.resolve();\n }\n // Reset desiredSize property of sink on every pull.\n this.streamSinks[data.streamId].desiredSize = data.desiredSize;\n resolveCall(this.streamSinks[data.streamId].onPull).then(() => {\n sendStreamResponse({ stream: 'pull_complete', success: true, });\n }, (reason) => {\n sendStreamResponse({ stream: 'pull_complete',\n success: false, reason, });\n });\n break;\n case 'enqueue':\n assert(this.streamControllers[data.streamId],\n 'enqueue should have stream controller');\n if (!this.streamControllers[data.streamId].isClosed) {\n this.streamControllers[data.streamId].controller.enqueue(data.chunk);\n }\n break;\n case 'close':\n assert(this.streamControllers[data.streamId],\n 'close should have stream controller');\n if (this.streamControllers[data.streamId].isClosed) {\n break;\n }\n this.streamControllers[data.streamId].isClosed = true;\n this.streamControllers[data.streamId].controller.close();\n deleteStreamController();\n break;\n case 'error':\n assert(this.streamControllers[data.streamId],\n 'error should have stream controller');\n this.streamControllers[data.streamId].controller.\n error(wrapReason(data.reason));\n deleteStreamController();\n break;\n case 'cancel_complete':\n resolveOrReject(this.streamControllers[data.streamId].cancelCall,\n data.success, wrapReason(data.reason));\n deleteStreamController();\n break;\n case 'cancel':\n if (!this.streamSinks[data.streamId]) {\n break;\n }\n resolveCall(this.streamSinks[data.streamId].onCancel,\n [wrapReason(data.reason)]).then(() => {\n sendStreamResponse({ stream: 'cancel_complete', success: true, });\n }, (reason) => {\n sendStreamResponse({ stream: 'cancel_complete',\n success: false, reason, });\n });\n this.streamSinks[data.streamId].sinkCapability.\n reject(wrapReason(data.reason));\n this.streamSinks[data.streamId].isCancelled = true;\n delete this.streamSinks[data.streamId];\n break;\n default:\n throw new Error('Unexpected stream case');\n }\n },\n\n /**\n * Sends raw message to the comObj.\n * @private\n * @param {Object} message - Raw message.\n * @param transfers List of transfers/ArrayBuffers, or undefined.\n */\n postMessage(message, transfers) {\n if (transfers && this.postMessageTransfers) {\n this.comObj.postMessage(message, transfers);\n } else {\n this.comObj.postMessage(message);\n }\n },\n\n destroy() {\n this.comObj.removeEventListener('message', this._onComObjOnMessage);\n },\n};\n\nfunction loadJpegStream(id, imageUrl, objs) {\n var img = new Image();\n img.onload = (function loadJpegStream_onloadClosure() {\n objs.resolve(id, img);\n });\n img.onerror = (function loadJpegStream_onerrorClosure() {\n objs.resolve(id, null);\n warn('Error during JPEG image loading');\n });\n img.src = imageUrl;\n}\n\nexport {\n FONT_IDENTITY_MATRIX,\n IDENTITY_MATRIX,\n OPS,\n VERBOSITY_LEVELS,\n UNSUPPORTED_FEATURES,\n AnnotationBorderStyleType,\n AnnotationFieldFlag,\n AnnotationFlag,\n AnnotationType,\n FontType,\n ImageKind,\n CMapCompressionType,\n AbortException,\n InvalidPDFException,\n MessageHandler,\n MissingDataException,\n MissingPDFException,\n NativeImageDecoding,\n NotImplementedException,\n PageViewport,\n PasswordException,\n PasswordResponses,\n StatTimer,\n StreamType,\n TextRenderingMode,\n UnexpectedResponseException,\n UnknownErrorException,\n Util,\n XRefParseException,\n FormatError,\n arrayByteLength,\n arraysToBytes,\n assert,\n bytesToString,\n createBlob,\n createPromiseCapability,\n createObjectURL,\n deprecated,\n getLookupTableFactory,\n getVerbosityLevel,\n globalScope,\n info,\n isArray,\n isArrayBuffer,\n isBool,\n isEmptyObj,\n isInt,\n isNum,\n isString,\n isSpace,\n isNodeJS,\n isSameOrigin,\n createValidAbsoluteUrl,\n isLittleEndian,\n isEvalSupported,\n loadJpegStream,\n log2,\n readInt8,\n readUint16,\n readUint32,\n removeNullCharacters,\n ReadableStream,\n setVerbosityLevel,\n shadow,\n string32,\n stringToBytes,\n stringToPDFString,\n stringToUTF8String,\n utf8StringToString,\n warn,\n unreachable,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/shared/util.js","/* Copyright 2015 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n CMapCompressionType, createValidAbsoluteUrl, deprecated, globalScope,\n removeNullCharacters, stringToBytes, warn\n} from '../shared/util';\n\nvar DEFAULT_LINK_REL = 'noopener noreferrer nofollow';\n\nclass DOMCanvasFactory {\n create(width, height) {\n if (width <= 0 || height <= 0) {\n throw new Error('invalid canvas size');\n }\n let canvas = document.createElement('canvas');\n let context = canvas.getContext('2d');\n canvas.width = width;\n canvas.height = height;\n return {\n canvas,\n context,\n };\n }\n\n reset(canvasAndContext, width, height) {\n if (!canvasAndContext.canvas) {\n throw new Error('canvas is not specified');\n }\n if (width <= 0 || height <= 0) {\n throw new Error('invalid canvas size');\n }\n canvasAndContext.canvas.width = width;\n canvasAndContext.canvas.height = height;\n }\n\n destroy(canvasAndContext) {\n if (!canvasAndContext.canvas) {\n throw new Error('canvas is not specified');\n }\n // Zeroing the width and height cause Firefox to release graphics\n // resources immediately, which can greatly reduce memory consumption.\n canvasAndContext.canvas.width = 0;\n canvasAndContext.canvas.height = 0;\n canvasAndContext.canvas = null;\n canvasAndContext.context = null;\n }\n}\n\nclass DOMCMapReaderFactory {\n constructor({ baseUrl = null, isCompressed = false, }) {\n this.baseUrl = baseUrl;\n this.isCompressed = isCompressed;\n }\n\n fetch({ name, }) {\n if (!name) {\n return Promise.reject(new Error('CMap name must be specified.'));\n }\n return new Promise((resolve, reject) => {\n let url = this.baseUrl + name + (this.isCompressed ? '.bcmap' : '');\n\n let request = new XMLHttpRequest();\n request.open('GET', url, true);\n\n if (this.isCompressed) {\n request.responseType = 'arraybuffer';\n }\n request.onreadystatechange = () => {\n if (request.readyState !== XMLHttpRequest.DONE) {\n return;\n }\n if (request.status === 200 || request.status === 0) {\n let data;\n if (this.isCompressed && request.response) {\n data = new Uint8Array(request.response);\n } else if (!this.isCompressed && request.responseText) {\n data = stringToBytes(request.responseText);\n }\n if (data) {\n resolve({\n cMapData: data,\n compressionType: this.isCompressed ?\n CMapCompressionType.BINARY : CMapCompressionType.NONE,\n });\n return;\n }\n }\n reject(new Error('Unable to load ' +\n (this.isCompressed ? 'binary ' : '') +\n 'CMap at: ' + url));\n };\n\n request.send(null);\n });\n }\n}\n\n/**\n * Optimised CSS custom property getter/setter.\n * @class\n */\nvar CustomStyle = (function CustomStyleClosure() {\n\n // As noted on: http://www.zachstronaut.com/posts/2009/02/17/\n // animate-css-transforms-firefox-webkit.html\n // in some versions of IE9 it is critical that ms appear in this list\n // before Moz\n var prefixes = ['ms', 'Moz', 'Webkit', 'O'];\n var _cache = Object.create(null);\n\n function CustomStyle() {}\n\n CustomStyle.getProp = function get(propName, element) {\n // check cache only when no element is given\n if (arguments.length === 1 && typeof _cache[propName] === 'string') {\n return _cache[propName];\n }\n\n element = element || document.documentElement;\n var style = element.style, prefixed, uPropName;\n\n // test standard property first\n if (typeof style[propName] === 'string') {\n return (_cache[propName] = propName);\n }\n\n // capitalize\n uPropName = propName.charAt(0).toUpperCase() + propName.slice(1);\n\n // test vendor specific properties\n for (var i = 0, l = prefixes.length; i < l; i++) {\n prefixed = prefixes[i] + uPropName;\n if (typeof style[prefixed] === 'string') {\n return (_cache[propName] = prefixed);\n }\n }\n\n // If all fails then set to undefined.\n return (_cache[propName] = 'undefined');\n };\n\n CustomStyle.setProp = function set(propName, element, str) {\n var prop = this.getProp(propName);\n if (prop !== 'undefined') {\n element.style[prop] = str;\n }\n };\n\n return CustomStyle;\n})();\n\nvar RenderingCancelledException = (function RenderingCancelledException() {\n function RenderingCancelledException(msg, type) {\n this.message = msg;\n this.type = type;\n }\n\n RenderingCancelledException.prototype = new Error();\n RenderingCancelledException.prototype.name = 'RenderingCancelledException';\n RenderingCancelledException.constructor = RenderingCancelledException;\n\n return RenderingCancelledException;\n})();\n\nvar LinkTarget = {\n NONE: 0, // Default value.\n SELF: 1,\n BLANK: 2,\n PARENT: 3,\n TOP: 4,\n};\n\nvar LinkTargetStringMap = [\n '',\n '_self',\n '_blank',\n '_parent',\n '_top'\n];\n\n/**\n * @typedef ExternalLinkParameters\n * @typedef {Object} ExternalLinkParameters\n * @property {string} url - An absolute URL.\n * @property {LinkTarget} target - The link target.\n * @property {string} rel - The link relationship.\n */\n\n/**\n * Adds various attributes (href, title, target, rel) to hyperlinks.\n * @param {HTMLLinkElement} link - The link element.\n * @param {ExternalLinkParameters} params\n */\nfunction addLinkAttributes(link, params) {\n var url = params && params.url;\n link.href = link.title = (url ? removeNullCharacters(url) : '');\n\n if (url) {\n var target = params.target;\n if (typeof target === 'undefined') {\n target = getDefaultSetting('externalLinkTarget');\n }\n link.target = LinkTargetStringMap[target];\n\n var rel = params.rel;\n if (typeof rel === 'undefined') {\n rel = getDefaultSetting('externalLinkRel');\n }\n link.rel = rel;\n }\n}\n\n// Gets the file name from a given URL.\nfunction getFilenameFromUrl(url) {\n var anchor = url.indexOf('#');\n var query = url.indexOf('?');\n var end = Math.min(\n anchor > 0 ? anchor : url.length,\n query > 0 ? query : url.length);\n return url.substring(url.lastIndexOf('/', end) + 1, end);\n}\n\nfunction getDefaultSetting(id) {\n // The list of the settings and their default is maintained for backward\n // compatibility and shall not be extended or modified. See also global.js.\n var globalSettings = globalScope.PDFJS;\n switch (id) {\n case 'pdfBug':\n return globalSettings ? globalSettings.pdfBug : false;\n case 'disableAutoFetch':\n return globalSettings ? globalSettings.disableAutoFetch : false;\n case 'disableStream':\n return globalSettings ? globalSettings.disableStream : false;\n case 'disableRange':\n return globalSettings ? globalSettings.disableRange : false;\n case 'disableFontFace':\n return globalSettings ? globalSettings.disableFontFace : false;\n case 'disableCreateObjectURL':\n return globalSettings ? globalSettings.disableCreateObjectURL : false;\n case 'disableWebGL':\n return globalSettings ? globalSettings.disableWebGL : true;\n case 'cMapUrl':\n return globalSettings ? globalSettings.cMapUrl : null;\n case 'cMapPacked':\n return globalSettings ? globalSettings.cMapPacked : false;\n case 'postMessageTransfers':\n return globalSettings ? globalSettings.postMessageTransfers : true;\n case 'workerPort':\n return globalSettings ? globalSettings.workerPort : null;\n case 'workerSrc':\n return globalSettings ? globalSettings.workerSrc : null;\n case 'disableWorker':\n return globalSettings ? globalSettings.disableWorker : false;\n case 'maxImageSize':\n return globalSettings ? globalSettings.maxImageSize : -1;\n case 'imageResourcesPath':\n return globalSettings ? globalSettings.imageResourcesPath : '';\n case 'isEvalSupported':\n return globalSettings ? globalSettings.isEvalSupported : true;\n case 'externalLinkTarget':\n if (!globalSettings) {\n return LinkTarget.NONE;\n }\n switch (globalSettings.externalLinkTarget) {\n case LinkTarget.NONE:\n case LinkTarget.SELF:\n case LinkTarget.BLANK:\n case LinkTarget.PARENT:\n case LinkTarget.TOP:\n return globalSettings.externalLinkTarget;\n }\n warn('PDFJS.externalLinkTarget is invalid: ' +\n globalSettings.externalLinkTarget);\n // Reset the external link target, to suppress further warnings.\n globalSettings.externalLinkTarget = LinkTarget.NONE;\n return LinkTarget.NONE;\n case 'externalLinkRel':\n return globalSettings ? globalSettings.externalLinkRel : DEFAULT_LINK_REL;\n case 'enableStats':\n return !!(globalSettings && globalSettings.enableStats);\n case 'pdfjsNext':\n return !!(globalSettings && globalSettings.pdfjsNext);\n default:\n throw new Error('Unknown default setting: ' + id);\n }\n}\n\nfunction isExternalLinkTargetSet() {\n var externalLinkTarget = getDefaultSetting('externalLinkTarget');\n switch (externalLinkTarget) {\n case LinkTarget.NONE:\n return false;\n case LinkTarget.SELF:\n case LinkTarget.BLANK:\n case LinkTarget.PARENT:\n case LinkTarget.TOP:\n return true;\n }\n}\n\nfunction isValidUrl(url, allowRelative) {\n deprecated('isValidUrl(), please use createValidAbsoluteUrl() instead.');\n var baseUrl = allowRelative ? 'http://example.com' : null;\n return createValidAbsoluteUrl(url, baseUrl) !== null;\n}\n\nexport {\n CustomStyle,\n RenderingCancelledException,\n addLinkAttributes,\n isExternalLinkTargetSet,\n isValidUrl,\n getFilenameFromUrl,\n LinkTarget,\n getDefaultSetting,\n DEFAULT_LINK_REL,\n DOMCanvasFactory,\n DOMCMapReaderFactory,\n};\n\n\n\n// WEBPACK FOOTER //\n// src/display/dom_utils.js","/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* globals requirejs, __non_webpack_require__ */\n\nimport {\n assert, createPromiseCapability, deprecated, getVerbosityLevel, globalScope,\n info, InvalidPDFException, isArray, isArrayBuffer, isInt, isSameOrigin,\n loadJpegStream, MessageHandler, MissingPDFException, NativeImageDecoding,\n PageViewport, PasswordException, StatTimer, stringToBytes,\n UnexpectedResponseException, UnknownErrorException, Util, warn\n} from '../shared/util';\nimport {\n DOMCanvasFactory, DOMCMapReaderFactory, getDefaultSetting,\n RenderingCancelledException\n} from './dom_utils';\nimport { FontFaceObject, FontLoader } from './font_loader';\nimport { CanvasGraphics } from './canvas';\nimport { Metadata } from './metadata';\nimport { PDFDataTransportStream } from './transport_stream';\n\nvar DEFAULT_RANGE_CHUNK_SIZE = 65536; // 2^16 = 65536\n\nvar isWorkerDisabled = false;\nvar workerSrc;\nvar isPostMessageTransfersDisabled = false;\n\nvar pdfjsFilePath =\n typeof PDFJSDev !== 'undefined' &&\n PDFJSDev.test('PRODUCTION && !(MOZCENTRAL || FIREFOX)') &&\n typeof document !== 'undefined' && document.currentScript ?\n document.currentScript.src : null;\n\nvar fakeWorkerFilesLoader = null;\nvar useRequireEnsure = false;\nif (typeof PDFJSDev !== 'undefined' &&\n PDFJSDev.test('GENERIC && !SINGLE_FILE')) {\n // For GENERIC build we need add support of different fake file loaders\n // for different frameworks.\n if (typeof window === 'undefined') {\n // node.js - disable worker and set require.ensure.\n isWorkerDisabled = true;\n if (typeof __non_webpack_require__.ensure === 'undefined') {\n __non_webpack_require__.ensure = __non_webpack_require__('node-ensure');\n }\n useRequireEnsure = true;\n } else if (typeof __non_webpack_require__ !== 'undefined' &&\n typeof __non_webpack_require__.ensure === 'function') {\n useRequireEnsure = true;\n }\n if (typeof requirejs !== 'undefined' && requirejs.toUrl) {\n workerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');\n }\n var dynamicLoaderSupported =\n typeof requirejs !== 'undefined' && requirejs.load;\n fakeWorkerFilesLoader = useRequireEnsure ? (function (callback) {\n __non_webpack_require__.ensure([], function () {\n var worker;\n if (typeof PDFJSDev !== 'undefined' && PDFJSDev.test('LIB')) {\n worker = __non_webpack_require__('../pdf.worker.js');\n } else {\n worker = __non_webpack_require__('./pdf.worker.js');\n }\n callback(worker.WorkerMessageHandler);\n });\n }) : dynamicLoaderSupported ? (function (callback) {\n requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {\n callback(worker.WorkerMessageHandler);\n });\n }) : null;\n}\n\n/** @type IPDFStream */\nvar PDFNetworkStream;\n\n/**\n * Sets PDFNetworkStream class to be used as alternative PDF data transport.\n * @param {IPDFStream} cls - the PDF data transport.\n */\nfunction setPDFNetworkStreamClass(cls) {\n PDFNetworkStream = cls;\n}\n\n/**\n * Document initialization / loading parameters object.\n *\n * @typedef {Object} DocumentInitParameters\n * @property {string} url - The URL of the PDF.\n * @property {TypedArray|Array|string} data - Binary PDF data. Use typed arrays\n * (Uint8Array) to improve the memory usage. If PDF data is BASE64-encoded,\n * use atob() to convert it to a binary string first.\n * @property {Object} httpHeaders - Basic authentication headers.\n * @property {boolean} withCredentials - Indicates whether or not cross-site\n * Access-Control requests should be made using credentials such as cookies\n * or authorization headers. The default is false.\n * @property {string} password - For decrypting password-protected PDFs.\n * @property {TypedArray} initialData - A typed array with the first portion or\n * all of the pdf data. Used by the extension since some data is already\n * loaded before the switch to range requests.\n * @property {number} length - The PDF file length. It's used for progress\n * reports and range requests operations.\n * @property {PDFDataRangeTransport} range\n * @property {number} rangeChunkSize - Optional parameter to specify\n * maximum number of bytes fetched per range request. The default value is\n * 2^16 = 65536.\n * @property {PDFWorker} worker - The worker that will be used for the loading\n * and parsing of the PDF data.\n * @property {string} docBaseUrl - (optional) The base URL of the document,\n * used when attempting to recover valid absolute URLs for annotations, and\n * outline items, that (incorrectly) only specify relative URLs.\n * @property {boolean} disableNativeImageDecoder - (deprecated) Disable decoding\n * of certain (simple) JPEG images in the browser. This is useful for\n * environments without DOM image support, such as e.g. Node.js.\n * The default value is `false`.\n * @property {string} nativeImageDecoderSupport - (optional) Strategy for\n * decoding certain (simple) JPEG images in the browser. This is useful for\n * environments without DOM image and canvas support, such as e.g. Node.js.\n * Valid values are 'decode', 'display' or 'none'; where 'decode' is intended\n * for browsers with full image/canvas support, 'display' for environments\n * with limited image support through stubs (useful for SVG conversion),\n * and 'none' where JPEG images will be decoded entirely by PDF.js.\n * The default value is 'decode'.\n * @property {Object} CMapReaderFactory - (optional) The factory that will be\n * used when reading built-in CMap files. Providing a custom factory is useful\n * for environments without `XMLHttpRequest` support, such as e.g. Node.js.\n * The default value is {DOMCMapReaderFactory}.\n * @property {boolean} stopAtErrors - (optional) Reject certain promises, e.g.\n * `getOperatorList`, `getTextContent`, and `RenderTask`, when the associated\n * PDF data cannot be successfully parsed, instead of attempting to recover\n * whatever possible of the data. The default value is `false`.\n */\n\n/**\n * @typedef {Object} PDFDocumentStats\n * @property {Array} streamTypes - Used stream types in the document (an item\n * is set to true if specific stream ID was used in the document).\n * @property {Array} fontTypes - Used font type in the document (an item is set\n * to true if specific font ID was used in the document).\n */\n\n/**\n * This is the main entry point for loading a PDF and interacting with it.\n * NOTE: If a URL is used to fetch the PDF data a standard XMLHttpRequest(XHR)\n * is used, which means it must follow the same origin rules that any XHR does\n * e.g. No cross domain requests without CORS.\n *\n * @param {string|TypedArray|DocumentInitParameters|PDFDataRangeTransport} src\n * Can be a url to where a PDF is located, a typed array (Uint8Array)\n * already populated with data or parameter object.\n *\n * @param {PDFDataRangeTransport} pdfDataRangeTransport (deprecated) It is used\n * if you want to manually serve range requests for data in the PDF.\n *\n * @param {function} passwordCallback (deprecated) It is used to request a\n * password if wrong or no password was provided. The callback receives two\n * parameters: function that needs to be called with new password and reason\n * (see {PasswordResponses}).\n *\n * @param {function} progressCallback (deprecated) It is used to be able to\n * monitor the loading progress of the PDF file (necessary to implement e.g.\n * a loading bar). The callback receives an {Object} with the properties:\n * {number} loaded and {number} total.\n *\n * @return {PDFDocumentLoadingTask}\n */\nfunction getDocument(src, pdfDataRangeTransport,\n passwordCallback, progressCallback) {\n var task = new PDFDocumentLoadingTask();\n\n // Support of the obsolete arguments (for compatibility with API v1.0)\n if (arguments.length > 1) {\n deprecated('getDocument is called with pdfDataRangeTransport, ' +\n 'passwordCallback or progressCallback argument');\n }\n if (pdfDataRangeTransport) {\n if (!(pdfDataRangeTransport instanceof PDFDataRangeTransport)) {\n // Not a PDFDataRangeTransport instance, trying to add missing properties.\n pdfDataRangeTransport = Object.create(pdfDataRangeTransport);\n pdfDataRangeTransport.length = src.length;\n pdfDataRangeTransport.initialData = src.initialData;\n if (!pdfDataRangeTransport.abort) {\n pdfDataRangeTransport.abort = function () {};\n }\n }\n src = Object.create(src);\n src.range = pdfDataRangeTransport;\n }\n task.onPassword = passwordCallback || null;\n task.onProgress = progressCallback || null;\n\n var source;\n if (typeof src === 'string') {\n source = { url: src, };\n } else if (isArrayBuffer(src)) {\n source = { data: src, };\n } else if (src instanceof PDFDataRangeTransport) {\n source = { range: src, };\n } else {\n if (typeof src !== 'object') {\n throw new Error('Invalid parameter in getDocument, ' +\n 'need either Uint8Array, string or a parameter object');\n }\n if (!src.url && !src.data && !src.range) {\n throw new Error(\n 'Invalid parameter object: need either .data, .range or .url');\n }\n\n source = src;\n }\n\n var params = {};\n var rangeTransport = null;\n var worker = null;\n var CMapReaderFactory = DOMCMapReaderFactory;\n\n for (var key in source) {\n if (key === 'url' && typeof window !== 'undefined') {\n // The full path is required in the 'url' field.\n params[key] = new URL(source[key], window.location).href;\n continue;\n } else if (key === 'range') {\n rangeTransport = source[key];\n continue;\n } else if (key === 'worker') {\n worker = source[key];\n continue;\n } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {\n // Converting string or array-like data to Uint8Array.\n var pdfBytes = source[key];\n if (typeof pdfBytes === 'string') {\n params[key] = stringToBytes(pdfBytes);\n } else if (typeof pdfBytes === 'object' && pdfBytes !== null &&\n !isNaN(pdfBytes.length)) {\n params[key] = new Uint8Array(pdfBytes);\n } else if (isArrayBuffer(pdfBytes)) {\n params[key] = new Uint8Array(pdfBytes);\n } else {\n throw new Error('Invalid PDF binary data: either typed array, ' +\n 'string or array-like object is expected in the ' +\n 'data property.');\n }\n continue;\n } else if (key === 'CMapReaderFactory') {\n CMapReaderFactory = source[key];\n continue;\n }\n params[key] = source[key];\n }\n\n params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;\n params.ignoreErrors = params.stopAtErrors !== true;\n\n if (params.disableNativeImageDecoder !== undefined) {\n deprecated('parameter disableNativeImageDecoder, ' +\n 'use nativeImageDecoderSupport instead');\n }\n params.nativeImageDecoderSupport = params.nativeImageDecoderSupport ||\n (params.disableNativeImageDecoder === true ? NativeImageDecoding.NONE :\n NativeImageDecoding.DECODE);\n if (params.nativeImageDecoderSupport !== NativeImageDecoding.DECODE &&\n params.nativeImageDecoderSupport !== NativeImageDecoding.NONE &&\n params.nativeImageDecoderSupport !== NativeImageDecoding.DISPLAY) {\n warn('Invalid parameter nativeImageDecoderSupport: ' +\n 'need a state of enum {NativeImageDecoding}');\n params.nativeImageDecoderSupport = NativeImageDecoding.DECODE;\n }\n\n if (!worker) {\n // Worker was not provided -- creating and owning our own. If message port\n // is specified in global settings, using it.\n var workerPort = getDefaultSetting('workerPort');\n worker = workerPort ? PDFWorker.fromPort(workerPort) : new PDFWorker();\n task._worker = worker;\n }\n var docId = task.docId;\n worker.promise.then(function () {\n if (task.destroyed) {\n throw new Error('Loading aborted');\n }\n return _fetchDocument(worker, params, rangeTransport, docId).then(\n function (workerId) {\n if (task.destroyed) {\n throw new Error('Loading aborted');\n }\n\n let networkStream;\n if (rangeTransport) {\n networkStream = new PDFDataTransportStream(params, rangeTransport);\n } else if (!params.data) {\n networkStream = new PDFNetworkStream({\n source: params,\n disableRange: getDefaultSetting('disableRange'),\n });\n }\n\n var messageHandler = new MessageHandler(docId, workerId, worker.port);\n messageHandler.postMessageTransfers = worker.postMessageTransfers;\n var transport = new WorkerTransport(messageHandler, task, networkStream,\n CMapReaderFactory);\n task._transport = transport;\n messageHandler.send('Ready', null);\n });\n }).catch(task._capability.reject);\n\n return task;\n}\n\n/**\n * Starts fetching of specified PDF document/data.\n * @param {PDFWorker} worker\n * @param {Object} source\n * @param {PDFDataRangeTransport} pdfDataRangeTransport\n * @param {string} docId Unique document id, used as MessageHandler id.\n * @returns {Promise} The promise, which is resolved when worker id of\n * MessageHandler is known.\n * @private\n */\nfunction _fetchDocument(worker, source, pdfDataRangeTransport, docId) {\n if (worker.destroyed) {\n return Promise.reject(new Error('Worker was destroyed'));\n }\n\n source.disableAutoFetch = getDefaultSetting('disableAutoFetch');\n source.disableStream = getDefaultSetting('disableStream');\n source.chunkedViewerLoading = !!pdfDataRangeTransport;\n if (pdfDataRangeTransport) {\n source.length = pdfDataRangeTransport.length;\n source.initialData = pdfDataRangeTransport.initialData;\n }\n return worker.messageHandler.sendWithPromise('GetDocRequest', {\n docId,\n source: {\n data: source.data,\n url: source.url,\n password: source.password,\n disableAutoFetch: source.disableAutoFetch,\n rangeChunkSize: source.rangeChunkSize,\n length: source.length,\n },\n maxImageSize: getDefaultSetting('maxImageSize'),\n disableFontFace: getDefaultSetting('disableFontFace'),\n disableCreateObjectURL: getDefaultSetting('disableCreateObjectURL'),\n postMessageTransfers: getDefaultSetting('postMessageTransfers') &&\n !isPostMessageTransfersDisabled,\n docBaseUrl: source.docBaseUrl,\n nativeImageDecoderSupport: source.nativeImageDecoderSupport,\n ignoreErrors: source.ignoreErrors,\n }).then(function (workerId) {\n if (worker.destroyed) {\n throw new Error('Worker was destroyed');\n }\n return workerId;\n });\n}\n\n/**\n * PDF document loading operation.\n * @class\n * @alias PDFDocumentLoadingTask\n */\nvar PDFDocumentLoadingTask = (function PDFDocumentLoadingTaskClosure() {\n var nextDocumentId = 0;\n\n /** @constructs PDFDocumentLoadingTask */\n function PDFDocumentLoadingTask() {\n this._capability = createPromiseCapability();\n this._transport = null;\n this._worker = null;\n\n /**\n * Unique document loading task id -- used in MessageHandlers.\n * @type {string}\n */\n this.docId = 'd' + (nextDocumentId++);\n\n /**\n * Shows if loading task is destroyed.\n * @type {boolean}\n */\n this.destroyed = false;\n\n /**\n * Callback to request a password if wrong or no password was provided.\n * The callback receives two parameters: function that needs to be called\n * with new password and reason (see {PasswordResponses}).\n */\n this.onPassword = null;\n\n /**\n * Callback to be able to monitor the loading progress of the PDF file\n * (necessary to implement e.g. a loading bar). The callback receives\n * an {Object} with the properties: {number} loaded and {number} total.\n */\n this.onProgress = null;\n\n /**\n * Callback to when unsupported feature is used. The callback receives\n * an {UNSUPPORTED_FEATURES} argument.\n */\n this.onUnsupportedFeature = null;\n }\n\n PDFDocumentLoadingTask.prototype =\n /** @lends PDFDocumentLoadingTask.prototype */ {\n /**\n * @return {Promise}\n */\n get promise() {\n return this._capability.promise;\n },\n\n /**\n * Aborts all network requests and destroys worker.\n * @return {Promise} A promise that is resolved after destruction activity\n * is completed.\n */\n destroy() {\n this.destroyed = true;\n\n var transportDestroyed = !this._transport ? Promise.resolve() :\n this._transport.destroy();\n return transportDestroyed.then(() => {\n this._transport = null;\n if (this._worker) {\n this._worker.destroy();\n this._worker = null;\n }\n });\n },\n\n /**\n * Registers callbacks to indicate the document loading completion.\n *\n * @param {function} onFulfilled The callback for the loading completion.\n * @param {function} onRejected The callback for the loading failure.\n * @return {Promise} A promise that is resolved after the onFulfilled or\n * onRejected callback.\n */\n then: function PDFDocumentLoadingTask_then(onFulfilled, onRejected) {\n return this.promise.then.apply(this.promise, arguments);\n },\n };\n\n return PDFDocumentLoadingTask;\n})();\n\n/**\n * Abstract class to support range requests file loading.\n * @class\n * @alias PDFDataRangeTransport\n * @param {number} length\n * @param {Uint8Array} initialData\n */\nvar PDFDataRangeTransport = (function pdfDataRangeTransportClosure() {\n function PDFDataRangeTransport(length, initialData) {\n this.length = length;\n this.initialData = initialData;\n\n this._rangeListeners = [];\n this._progressListeners = [];\n this._progressiveReadListeners = [];\n this._readyCapability = createPromiseCapability();\n }\n PDFDataRangeTransport.prototype =\n /** @lends PDFDataRangeTransport.prototype */ {\n addRangeListener:\n function PDFDataRangeTransport_addRangeListener(listener) {\n this._rangeListeners.push(listener);\n },\n\n addProgressListener:\n function PDFDataRangeTransport_addProgressListener(listener) {\n this._progressListeners.push(listener);\n },\n\n addProgressiveReadListener:\n function PDFDataRangeTransport_addProgressiveReadListener(listener) {\n this._progressiveReadListeners.push(listener);\n },\n\n onDataRange: function PDFDataRangeTransport_onDataRange(begin, chunk) {\n var listeners = this._rangeListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](begin, chunk);\n }\n },\n\n onDataProgress: function PDFDataRangeTransport_onDataProgress(loaded) {\n this._readyCapability.promise.then(() => {\n var listeners = this._progressListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](loaded);\n }\n });\n },\n\n onDataProgressiveRead:\n function PDFDataRangeTransport_onDataProgress(chunk) {\n this._readyCapability.promise.then(() => {\n var listeners = this._progressiveReadListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](chunk);\n }\n });\n },\n\n transportReady: function PDFDataRangeTransport_transportReady() {\n this._readyCapability.resolve();\n },\n\n requestDataRange:\n function PDFDataRangeTransport_requestDataRange(begin, end) {\n throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');\n },\n\n abort: function PDFDataRangeTransport_abort() {\n },\n };\n return PDFDataRangeTransport;\n})();\n\n/**\n * Proxy to a PDFDocument in the worker thread. Also, contains commonly used\n * properties that can be read synchronously.\n * @class\n * @alias PDFDocumentProxy\n */\nvar PDFDocumentProxy = (function PDFDocumentProxyClosure() {\n function PDFDocumentProxy(pdfInfo, transport, loadingTask) {\n this.pdfInfo = pdfInfo;\n this.transport = transport;\n this.loadingTask = loadingTask;\n }\n PDFDocumentProxy.prototype = /** @lends PDFDocumentProxy.prototype */ {\n /**\n * @return {number} Total number of pages the PDF contains.\n */\n get numPages() {\n return this.pdfInfo.numPages;\n },\n /**\n * @return {string} A unique ID to identify a PDF. Not guaranteed to be\n * unique.\n */\n get fingerprint() {\n return this.pdfInfo.fingerprint;\n },\n /**\n * @param {number} pageNumber The page number to get. The first page is 1.\n * @return {Promise} A promise that is resolved with a {@link PDFPageProxy}\n * object.\n */\n getPage: function PDFDocumentProxy_getPage(pageNumber) {\n return this.transport.getPage(pageNumber);\n },\n /**\n * @param {{num: number, gen: number}} ref The page reference. Must have\n * the 'num' and 'gen' properties.\n * @return {Promise} A promise that is resolved with the page index that is\n * associated with the reference.\n */\n getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {\n return this.transport.getPageIndex(ref);\n },\n /**\n * @return {Promise} A promise that is resolved with a lookup table for\n * mapping named destinations to reference numbers.\n *\n * This can be slow for large documents: use getDestination instead\n */\n getDestinations: function PDFDocumentProxy_getDestinations() {\n return this.transport.getDestinations();\n },\n /**\n * @param {string} id The named destination to get.\n * @return {Promise} A promise that is resolved with all information\n * of the given named destination.\n */\n getDestination: function PDFDocumentProxy_getDestination(id) {\n return this.transport.getDestination(id);\n },\n /**\n * @return {Promise} A promise that is resolved with:\n * an Array containing the pageLabels that correspond to the pageIndexes,\n * or `null` when no pageLabels are present in the PDF file.\n */\n getPageLabels: function PDFDocumentProxy_getPageLabels() {\n return this.transport.getPageLabels();\n },\n /**\n * @return {Promise} A promise that is resolved with a {string} containing\n * the PageMode name.\n */\n getPageMode() {\n return this.transport.getPageMode();\n },\n /**\n * @return {Promise} A promise that is resolved with a lookup table for\n * mapping named attachments to their content.\n */\n getAttachments: function PDFDocumentProxy_getAttachments() {\n return this.transport.getAttachments();\n },\n /**\n * @return {Promise} A promise that is resolved with an array of all the\n * JavaScript strings in the name tree.\n */\n getJavaScript: function PDFDocumentProxy_getJavaScript() {\n return this.transport.getJavaScript();\n },\n /**\n * @return {Promise} A promise that is resolved with an {Array} that is a\n * tree outline (if it has one) of the PDF. The tree is in the format of:\n * [\n * {\n * title: string,\n * bold: boolean,\n * italic: boolean,\n * color: rgb Uint8Array,\n * dest: dest obj,\n * url: string,\n * items: array of more items like this\n * },\n * ...\n * ].\n */\n getOutline: function PDFDocumentProxy_getOutline() {\n return this.transport.getOutline();\n },\n /**\n * @return {Promise} A promise that is resolved with an {Object} that has\n * info and metadata properties. Info is an {Object} filled with anything\n * available in the information dictionary and similarly metadata is a\n * {Metadata} object with information from the metadata section of the PDF.\n */\n getMetadata: function PDFDocumentProxy_getMetadata() {\n return this.transport.getMetadata();\n },\n /**\n * @return {Promise} A promise that is resolved with a TypedArray that has\n * the raw data from the PDF.\n */\n getData: function PDFDocumentProxy_getData() {\n return this.transport.getData();\n },\n /**\n * @return {Promise} A promise that is resolved when the document's data\n * is loaded. It is resolved with an {Object} that contains the length\n * property that indicates size of the PDF data in bytes.\n */\n getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {\n return this.transport.downloadInfoCapability.promise;\n },\n /**\n * @return {Promise} A promise this is resolved with current stats about\n * document structures (see {@link PDFDocumentStats}).\n */\n getStats: function PDFDocumentProxy_getStats() {\n return this.transport.getStats();\n },\n /**\n * Cleans up resources allocated by the document, e.g. created @font-face.\n */\n cleanup: function PDFDocumentProxy_cleanup() {\n this.transport.startCleanup();\n },\n /**\n * Destroys current document instance and terminates worker.\n */\n destroy: function PDFDocumentProxy_destroy() {\n return this.loadingTask.destroy();\n },\n };\n return PDFDocumentProxy;\n})();\n\n/**\n * Page getTextContent parameters.\n *\n * @typedef {Object} getTextContentParameters\n * @property {boolean} normalizeWhitespace - replaces all occurrences of\n * whitespace with standard spaces (0x20). The default value is `false`.\n * @property {boolean} disableCombineTextItems - do not attempt to combine\n * same line {@link TextItem}'s. The default value is `false`.\n */\n\n/**\n * Page text content.\n *\n * @typedef {Object} TextContent\n * @property {array} items - array of {@link TextItem}\n * @property {Object} styles - {@link TextStyles} objects, indexed by font name.\n */\n\n/**\n * Page text content part.\n *\n * @typedef {Object} TextItem\n * @property {string} str - text content.\n * @property {string} dir - text direction: 'ttb', 'ltr' or 'rtl'.\n * @property {array} transform - transformation matrix.\n * @property {number} width - width in device space.\n * @property {number} height - height in device space.\n * @property {string} fontName - font name used by pdf.js for converted font.\n */\n\n/**\n * Text style.\n *\n * @typedef {Object} TextStyle\n * @property {number} ascent - font ascent.\n * @property {number} descent - font descent.\n * @property {boolean} vertical - text is in vertical mode.\n * @property {string} fontFamily - possible font family\n */\n\n/**\n * Page annotation parameters.\n *\n * @typedef {Object} GetAnnotationsParameters\n * @property {string} intent - Determines the annotations that will be fetched,\n * can be either 'display' (viewable annotations) or 'print'\n * (printable annotations).\n * If the parameter is omitted, all annotations are fetched.\n */\n\n/**\n * Page render parameters.\n *\n * @typedef {Object} RenderParameters\n * @property {Object} canvasContext - A 2D context of a DOM Canvas object.\n * @property {PageViewport} viewport - Rendering viewport obtained by\n * calling of PDFPage.getViewport method.\n * @property {string} intent - Rendering intent, can be 'display' or 'print'\n * (default value is 'display').\n * @property {boolean} renderInteractiveForms - (optional) Whether or not\n * interactive form elements are rendered in the display\n * layer. If so, we do not render them on canvas as well.\n * @property {Array} transform - (optional) Additional transform, applied\n * just before viewport transform.\n * @property {Object} imageLayer - (optional) An object that has beginLayout,\n * endLayout and appendImage functions.\n * @property {function} continueCallback - (deprecated) A function that will be\n * called each time the rendering is paused. To continue\n * rendering call the function that is the first argument\n * to the callback.\n * @property {Object} canvasFactory - (optional) The factory that will be used\n * when creating canvases. The default value is\n * {DOMCanvasFactory}.\n * @property {Object} background - (optional) Background to use for the canvas.\n * Can use any valid canvas.fillStyle: A DOMString parsed as\n * CSS