From 65151f4b0a30811679dac394677342346c3c22f6 Mon Sep 17 00:00:00 2001
From: wanglin2 <1013335014@qq.com>
Date: Mon, 24 Apr 2023 10:25:23 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E6=80=A7=E8=83=BD=EF=BC=9A1.?=
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---
 simple-mind-map/src/Node.js                     |  3 +++
 simple-mind-map/src/layouts/LogicalStructure.js | 10 ++++++++--
 simple-mind-map/src/layouts/MindMap.js          | 10 ++++++++--
 simple-mind-map/src/utils/nodeExpandBtn.js      |  4 ++++
 4 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/simple-mind-map/src/Node.js b/simple-mind-map/src/Node.js
index 3a787edc..c7bf3a57 100644
--- a/simple-mind-map/src/Node.js
+++ b/simple-mind-map/src/Node.js
@@ -67,6 +67,7 @@ class Node {
     this._noteData = null
     this.noteEl = null
     this._expandBtn = null
+    this._lastExpandBtnType = null
     this._openExpandNode = null
     this._closeExpandNode = null
     this._fillExpandNode = null
@@ -436,6 +437,8 @@ class Node {
     this.renderGeneralization()
     // 更新节点位置
     let t = this.group.transform()
+    // 如果节点位置没有变化，则返回
+    if (this.left === t.translateX && this.top === t.translateY) return
     if (!isLayout && enableNodeTransitionMove) {
       this.group
         .animate(nodeTransitionMoveDuration)
diff --git a/simple-mind-map/src/layouts/LogicalStructure.js b/simple-mind-map/src/layouts/LogicalStructure.js
index a9ed8ff2..dde3a157 100644
--- a/simple-mind-map/src/layouts/LogicalStructure.js
+++ b/simple-mind-map/src/layouts/LogicalStructure.js
@@ -245,9 +245,15 @@ class LogicalStructure extends Base {
     let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
       ? height / 2
       : 0
+    // 位置没有变化则返回
+    let _x = width
+    let _y = height / 2 + nodeUseLineStyleOffset
+    if (_x === translateX && _y === translateY) {
+      return
+    }
     btn.translate(
-      width - translateX,
-      height / 2 - translateY + nodeUseLineStyleOffset
+      _x - translateX,
+      _y - translateY
     )
   }
 
diff --git a/simple-mind-map/src/layouts/MindMap.js b/simple-mind-map/src/layouts/MindMap.js
index 384c301a..48b9bdd8 100644
--- a/simple-mind-map/src/layouts/MindMap.js
+++ b/simple-mind-map/src/layouts/MindMap.js
@@ -310,8 +310,14 @@ class MindMap extends Base {
     let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
       ? height / 2
       : 0
-    let x = (node.dir === 'left' ? 0 - expandBtnSize : width) - translateX
-    let y = height / 2 - translateY + nodeUseLineStyleOffset
+    // 位置没有变化则返回
+    let _x = (node.dir === 'left' ? 0 - expandBtnSize : width)
+    let _y = height / 2 + nodeUseLineStyleOffset
+    if (_x === translateX && _y === translateY) {
+      return
+    }
+    let x = _x - translateX
+    let y = _y - translateY
     btn.translate(x, y)
   }
 
diff --git a/simple-mind-map/src/utils/nodeExpandBtn.js b/simple-mind-map/src/utils/nodeExpandBtn.js
index 2119863c..347b5b69 100644
--- a/simple-mind-map/src/utils/nodeExpandBtn.js
+++ b/simple-mind-map/src/utils/nodeExpandBtn.js
@@ -32,6 +32,8 @@ function createExpandNodeContent() {
 
 //  创建或更新展开收缩按钮内容
 function updateExpandBtnNode() {
+  // 如果本次和上次的展开状态一样则返回
+  if (this.nodeData.data.expand === this._lastExpandBtnType) return
   if (this._expandBtn) {
     this._expandBtn.clear()
   }
@@ -39,8 +41,10 @@ function updateExpandBtnNode() {
   let node
   if (this.nodeData.data.expand === false) {
     node = this._openExpandNode
+    this._lastExpandBtnType = false
   } else {
     node = this._closeExpandNode
+    this._lastExpandBtnType = true
   }
   if (this._expandBtn) this._expandBtn.add(this._fillExpandNode).add(node)
 }