feat(components): 优化 PDF 渲染和 Markdown 处理

- 在 RenderMinerU 组件中添加 loading 状态，提升用户体验- 重构 Markdown 数据处理逻辑，使用数组替代对象存储页面内容- 优化 PDF 详细信息获取流程，支持异步加载
- 在 lineEcharts 组件中增加空数据处理，确保图表正确显示

src/components/RenderMinerU/index.vue

@@ -48,6 +48,8 @@
     <div
       :class="!isEdit ? 'mt10 flex' : 'flex'"
       style="height:calc(100%);flex:1"
+      v-loading="finishenEnd"
+      element-loading-text="读取文档中..."
     >
       <iframe
         v-if="isShowPdf"
@@ -121,7 +123,7 @@ export default {
   data() {
     return {
       mdJsons: {},
-
+      finishenEnd: false,
       fileName: '',
       recordId: '', //pdf 记录的id
       endEmit: false,
@@ -496,14 +498,16 @@ export default {
     // 保存markdown
     async saveMarkDown() {
       let promises = []
-      for (let item in this.mdJsons) {
+
+      this.mdJsons.map(item => {
         let promise = contentUpdate({
           documentId: this.documentId,
-          pageIndex: item,
-          newMd: this.mdJsons[item]
+          pageIndex: item.key,
+          newMd: item.value
         })
         promises.push(promise)
-      }
+      })
+
       try {
         await Promise.all(promises)
         this.$emit('saveMarkDown', true)
@@ -618,23 +622,83 @@ export default {
           }
         })
       }
-      this.mdJsons[this.page - 1] = pre
+
+      this.mdJsons.map(item => {
+        if (item.key === this.page - 1) {
+          item.value = pre
+        }
+      })
+
+      // this.mdJsons[this.page - 1] = pre
       this.markdownHtml = md.render(
-        this.mdJsons[this.page - 1].replace(/class="m-view"/g, '')
+        this.mdJsons
+          .find(item => item.key === this.page - 1)
+          .value.replace(/class="m-view"/g, '')
       )
     },
     // 初始md 文档
     async getPDFDetailMarkDown() {
-      if (this.mdJsons[this.page - 1]) {
-        this.markdown = this.mdJsons[this.page - 1]
+      if (this.mdJsons.length > 0) {
+        let findValue = this.mdJsons.find(item => item.key === this.page - 1)
+          .value
+        if (findValue) {
+          this.markdown = findValue
+        } else {
+          // 将所有md 更新到本地  后续所有操作都将在本地进行处理
+          this.finishenEnd = true
+
+          let values = await mdIndex({
+            index: this.page - 1,
+            documentId: this.documentId
+          })
+          this.mdJsons.push({
+            key: this.page - 1,
+            value: values
+          })
+
+          // this.markdown = this.mdJsons[this.page - 1].value
+          this.finishenEnd = false
+        }
       } else {
-        this.mdJsons[this.page - 1] = await mdIndex({
-          index: this.page - 1,
-          documentId: this.documentId
-        })
-        this.markdown = this.mdJsons[this.page - 1]
+        // 将所有md 更新到本地  后续所有操作都将在本地进行处理
+        this.finishenEnd = true
+        let array = []
+        for (let i = 0; i < this.mdPges; i++) {
+          // if (i == 3) {
+          // array.push({
+          //   key: i,
+          //   value: '401'
+          // })
+          // } else {
+          let values = await mdIndex({
+            index: i,
+            documentId: this.documentId
+          })
+          array.push({
+            key: i,
+            value: values
+          })
+          // }
+        }
+        this.mdJsons = array
+        this.markdown = this.mdJsons.find(
+          item => item.key === this.page - 1
+        ).value
+        // this.markdown = this.mdJsons[this.page - 1].value
+        this.finishenEnd = false
       }
 
+      // if (
+      //   this.mdJsons.length > 0 &&
+      //   this.mdJsons.find(item => item.key === this.page - 1).value
+      // ) {
+      //   this.markdown = this.mdJsons.find(
+      //     item => item.key === this.page - 1
+      //   ).value
+      // } else {
+      //
+      // }
+
       this.renderMarkDown()
     },
     // 向 iframe 发送消息