[update 90328] 拆分拖拽，优化拖拽性能

src/views/documentTool/documentSplit/DocumentSplitDetail.vue

@@ -20,11 +20,9 @@
                     @dragstart="changeDraggingStatus(true)"
                     @dragend="changeDraggingStatus(false)"
                     @drop="onDrop">
-              <template #title="record">
-                <div class="tree-operate-node"
-                     @mouseenter="handleTreeMouseover(record.id)"
-                     @mouseleave="handleTreeMouseout(record.id)"
-                     @click="handleSelectTreeNode(record)">
+              <!-- 拖拽期间插槽频繁触发执行，导致卡顿，拖拽期间只显示节点名 -->
+              <template #title="record" v-if="!dragging">
+                <div class="tree-operate-node" @click="handleSelectTreeNode(record)">
                   <a-icon class="parent-node-icon"
                           type="folder"
                           v-if="record.dataRef.children && record.dataRef.children.length > 0" />
@@ -36,8 +34,7 @@
                     <span class="tree-node-custom-title">{{ record.name }} {{ record.itemName }}</span>
                   </a-tooltip>
                   <span class="tree-node-custom-title" v-else>{{ record.name }} {{ record.itemName }}</span>
-                  <div class="tree-operate-node-btn-box"
-                       :class="{'tree-operate-node-btn-box-hide': record.id !== mouseInNodeKey}">
+                  <div class="tree-operate-node-btn-box tree-operate-node-btn-box-hide" v-if="!dragging">
                     <!--新增-->
                     <a-button icon="plus"
                               class="tree-operate-node-btn"
@@ -74,6 +71,9 @@
                   </div>
                 </div>
               </template>
+              <template v-else>
+                <span class="tree-node-custom-title">{{ record.name }} {{ record.itemName }}</span>
+              </template>
             </a-tree>
           </a-spin>
         </div>
@@ -883,4 +883,9 @@ export default {
   font-size: 16px;
   margin-right: 10px;
 }
+// 鼠标滑动到节点，显示操作按钮
+.tree-node-custom-title:hover + .tree-operate-node-btn-box-hide {
+  opacity: 1;
+  pointer-events: auto;
+}
 </style>