1、左侧菜单树样式调整

2、“导出”修改为全量导出
3、文档详情新增预览功能
4、预览新增遮罩功能

src/views/tool/downloadFileDetail.vue

@@ -2,7 +2,7 @@
   <div class="fbox1">
     <div class="fl">
       <el-tabs v-model="detailActiveName">
-        <el-tab-pane label="附件信息" name="first">
+        <el-tab-pane label="附件信息" name="first" v-loading="previewLoading" element-loading-text="加载中">
           <el-table :data="attachmentList" style="width: 100%">
             <el-table-column label="序号" width="60" align="center" type="index"></el-table-column>
             <el-table-column label="附件名称" prop="fileName" :show-overflow-tooltip="true" />
@@ -35,7 +35,7 @@
       </el-tabs><!--el-tabs-->
     </div><!--fl 左侧页签-->
 
-    <preview-util v-if="isPreviewDisable" ref="previewForm" @previewClose="previewClose"></preview-util>
+    <preview-util v-if="isPreviewDisable" ref="previewForm" @previewClose="previewClose" @previewLoadingClose="previewLoadingClose"></preview-util>
 
   </div><!--fbox1 左右分栏-->
 </template>
@@ -80,7 +80,8 @@
         replyContent: [],
         isPreviewDisable: false,
         attFileType: "zip,rar,7z",
-        total: 0
+        total: 0,
+        previewLoading:false,
       }
     },
     created(){
@@ -108,6 +109,10 @@
       previewClose(){
         this.isPreviewDisable = false
       },
+      /** 关闭预览遮罩 **/
+      previewLoadingClose(){
+        this.previewLoading = false
+      },
       previewAuth(row){
         if(row.fileUrl == null || row.fileUrl == '' || row.fileUrl == undefined){
           return false