Demo：修复一些未知情况下在根节点上点击鼠标右键会同时显示两个右键菜单的问题

web/src/pages/Edit/components/Contextmenu.vue

@@ -244,7 +244,8 @@ export default {
       enableCopyToClipboardApi: navigator.clipboard,
       numberType: '',
       numberLevel: '',
-      subItemsShowLeft: false
+      subItemsShowLeft: false,
+      isNodeMousedown: false
     }
   },
   computed: {
@@ -344,6 +345,7 @@ export default {
     this.$bus.$on('svg_mousedown', this.onMousedown)
     this.$bus.$on('mouseup', this.onMouseup)
     this.$bus.$on('translate', this.hide)
+    this.$bus.$on('node_mousedown', this.onNodeMousedown)
   },
   beforeDestroy() {
     this.$bus.$off('node_contextmenu', this.show)
@@ -353,6 +355,7 @@ export default {
     this.$bus.$off('svg_mousedown', this.onMousedown)
     this.$bus.$off('mouseup', this.onMouseup)
     this.$bus.$off('translate', this.hide)
+    this.$bus.$off('node_mousedown', this.onNodeMousedown)
   },
   methods: {
     ...mapMutations(['setLocalConfig']),
@@ -387,6 +390,10 @@ export default {
       })
     },
 
+    onNodeMousedown() {
+      this.isNodeMousedown = true
+    },
+
     // 鼠标按下事件
     onMousedown(e) {
       if (e.which !== 3) {
@@ -402,6 +409,10 @@ export default {
       if (!this.isMousedown) {
         return
       }
+      if (this.isNodeMousedown) {
+        this.isNodeMousedown = false
+        return
+      }
       this.isMousedown = false
       if (
         Math.abs(this.mosuedownX - e.clientX) > 3 ||

web/src/pages/Edit/components/Edit.vue

@@ -593,7 +593,8 @@ export default {
         'node_attachmentContextmenu',
         'demonstrate_jump',
         'exit_demonstrate',
-        'node_note_dblclick'
+        'node_note_dblclick',
+        'node_mousedown'
       ].forEach(event => {
         this.mindMap.on(event, (...args) => {
           this.$bus.$emit(event, ...args)