NEZ-1788 fix： panel页面整页导出

nezha-fronted/src/components/common/mixin/htmlToPdfMixin.js

@@ -1,3 +1,13 @@
 export default {
-
+  methods: {
+    htmlToPdf () {
+      const dom = document.getElementsByClassName(this.pdfId)[0]
+      if (dom) {
+        this.showScreenLoading(true)
+        this.getPdf(dom)
+      } else {
+        this.showScreenLoading(false)
+      }
+    }
+  }
 }