Fix：修复节点文本编辑状态中鼠标选择文本时移除编辑框，文字选中状态会丢失的问题

simple-mind-map/src/core/event/Event.js

@@ -29,6 +29,7 @@ class Event extends EventEmitter {
 
   //  绑定函数上下文
   bindFn() {
+    this.onBodyMousedown = this.onBodyMousedown.bind(this)
     this.onBodyClick = this.onBodyClick.bind(this)
     this.onDrawClick = this.onDrawClick.bind(this)
     this.onMousedown = this.onMousedown.bind(this)
@@ -45,6 +46,7 @@ class Event extends EventEmitter {
 
   //  绑定事件
   bind() {
+    document.body.addEventListener('mousedown', this.onBodyMousedown)
     document.body.addEventListener('click', this.onBodyClick)
     this.mindMap.svg.on('click', this.onDrawClick)
     this.mindMap.el.addEventListener('mousedown', this.onMousedown)
@@ -61,6 +63,7 @@ class Event extends EventEmitter {
 
   //  解绑事件
   unbind() {
+    document.body.removeEventListener('mousedown', this.onBodyMousedown)
     document.body.removeEventListener('click', this.onBodyClick)
     this.mindMap.svg.off('click', this.onDrawClick)
     this.mindMap.el.removeEventListener('mousedown', this.onMousedown)
@@ -79,6 +82,11 @@ class Event extends EventEmitter {
     this.emit('draw_click', e)
   }
 
+  // 页面的鼠标按下事件
+  onBodyMousedown(e) {
+    this.emit('body_mousedown', e)
+  }
+
   // 页面的单击事件
   onBodyClick(e) {
     this.emit('body_click', e)

simple-mind-map/src/core/render/TextEdit.js

@@ -21,6 +21,7 @@ export default class TextEdit {
     this.showTextEdit = false
     // 如果编辑过程中缩放画布了，那么缓存当前编辑的内容
     this.cacheEditingText = ''
+    this.hasBodyMousedown = false
     this.bindEvent()
   }
 
@@ -38,7 +39,12 @@ export default class TextEdit {
       // 隐藏文本编辑框
       this.hideEditTextBox()
     })
+    this.mindMap.on('body_mousedown', () => {
+      this.hasBodyMousedown = true
+    })
     this.mindMap.on('body_click', () => {
+      if (!this.hasBodyMousedown) return
+      this.hasBodyMousedown = false
       // 隐藏文本编辑框
       if (this.mindMap.opt.isEndNodeTextEditOnClickOuter) {
         this.hideEditTextBox()