From 4cd9b666534638aba48fea82b407bc38e3b780b6 Mon Sep 17 00:00:00 2001
From: wanglin2 <1013335014@qq.com>
Date: Fri, 31 Mar 2023 22:25:34 +0800
Subject: [PATCH] =?UTF-8?q?=E9=98=BB=E6=AD=A2=E7=9F=AD=E6=97=B6=E9=97=B4?=
 =?UTF-8?q?=E5=A4=9A=E6=AC=A1=E8=A7=A6=E5=8F=91=E6=B8=B2=E6=9F=93?=
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---
 simple-mind-map/src/Render.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/simple-mind-map/src/Render.js b/simple-mind-map/src/Render.js
index 9e55f9f6..66fbfbcb 100644
--- a/simple-mind-map/src/Render.js
+++ b/simple-mind-map/src/Render.js
@@ -34,6 +34,11 @@ class Render {
     this.renderTree = merge({}, this.mindMap.opt.data || {})
     // 是否重新渲染
     this.reRender = false
+    // 是否正在渲染中
+    this.isRendering = false
+    // 是否存在等待渲染
+    this.hasWaitRendering = false
+    // 用于缓存节点
     this.nodeCache = {}
     this.lastNodeCache = {}
     // 触发render的来源
@@ -237,6 +242,13 @@ class Render {
 
   //   渲染
   render(callback = () => {}, source) {
+    // 如果当前还没有渲染完毕，不再触发渲染
+    if (this.isRendering) {
+      // 等待当前渲染完毕后再进行一次渲染
+      this.hasWaitRendering = true
+      return
+    }
+    this.isRendering = true
     // 触发当前重新渲染的来源
     this.renderSource = source
     // 节点缓存
@@ -261,8 +273,13 @@ class Render {
       this.root = root
       // 渲染节点
       this.root.render(() => {
+        this.isRendering = false
         this.mindMap.emit('node_tree_render_end')
         callback && callback()
+        if (this.hasWaitRendering) {
+          this.hasWaitRendering = false
+          this.render(callback, source)
+        }
       })
     })
     this.mindMap.emit('node_active', null, this.activeNodeList)