工作流的编辑无法撤回、crtl 选中的问题

Author: YunaiV

src/components/bpmnProcessDesigner/package/designer/ProcessDesigner.vue

@@ -118,6 +118,7 @@ export default {
   componentName: "MyProcessDesigner",
   props: {
     value: String, // xml 字符串
+    valueWatch: true, // xml 字符串的 watch 状态
     processId: String, // 流程 key 标识
     processName: String, // 流程 name 名字
     formId: Number, // 流程 form 表单编号
@@ -252,11 +253,6 @@ export default {
       this.bpmnModeler = null;
     });
   },
-  watch: {
-    value: function (newValue) { // 在 xmlString 发生变化时，重新创建，从而绘制流程图
-      this.createNewDiagram(newValue);
-    }
-  },
   methods: {
     initBpmnModeler() {
       if (this.bpmnModeler) return;
@@ -307,7 +303,7 @@ export default {
       let newName = this.processName || `业务流程_${new Date().getTime()}`;
       let xmlString = xml || DefaultEmptyXML(newId, newName, this.prefix);
       try {
-        console.log(this.bpmnModeler.importXML);
+        // console.log(this.bpmnModeler.importXML);
         let { warnings } = await this.bpmnModeler.importXML(xmlString);
         if (warnings && warnings.length) {
           warnings.forEach(warn => console.warn(warn));

src/views/bpm/model/modelEditor.vue

@@ -2,7 +2,7 @@
   <div class="app-container">
 
     <!-- 流程设计器，负责绘制流程等 -->
-    <my-process-designer :key="`designer-${reloadIndex}`" v-model="xmlString" v-bind="controlForm"
+    <my-process-designer v-if="xmlString !== undefined" :key="`designer-${reloadIndex}`" v-model="xmlString" v-bind="controlForm"
       keyboard ref="processDesigner" @init-finished="initModeler"
       @save="save"/>
 
@@ -30,7 +30,7 @@ export default {
   components: { MyProcessPalette },
   data() {
     return {
-      xmlString: "", // BPMN XML
+      xmlString: undefined, // BPMN XML
       modeler: null,
       reloadIndex: 0,
       controlDrawerVisible: false,
@@ -72,21 +72,6 @@ export default {
         console.log(modeler);
       }, 10);
     },
-    reloadProcessDesigner(deep) {
-      this.controlForm.additionalModel = [];
-      for (let key in this.addis) {
-        if (this.addis[key]) {
-          this.controlForm.additionalModel.push(this.addis[key]);
-        }
-      }
-      deep && (this.xmlString = undefined);
-      this.reloadIndex += 1;
-      this.modeler = null; // 避免 panel 异常
-      // if (deep) {
-      //   this.xmlString = undefined;
-      //   this.$refs.processDesigner.processRestart();
-      // }
-    },
     save(bpmnXml) {
       const data = {
         ...this.model,