From e0d46055a708be2601aaf7cc1f3b06bec5af0716 Mon Sep 17 00:00:00 2001
From: wanglin2 <1013335014@qq.com>
Date: Mon, 20 Nov 2023 11:46:46 +0800
Subject: [PATCH] =?UTF-8?q?Feat=EF=BC=9A=E6=96=B0=E5=A2=9E=E7=A6=81?=
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---
 simple-mind-map/src/constants/defaultOptions.js | 3 +++
 simple-mind-map/src/plugins/TouchEvent.js       | 1 +
 2 files changed, 4 insertions(+)

diff --git a/simple-mind-map/src/constants/defaultOptions.js b/simple-mind-map/src/constants/defaultOptions.js
index 08c73308..0430b531 100644
--- a/simple-mind-map/src/constants/defaultOptions.js
+++ b/simple-mind-map/src/constants/defaultOptions.js
@@ -160,6 +160,9 @@ export const defaultOpt = {
   customHandleClipboardText: null,
   // 禁止鼠标滚轮缩放，你仍旧可以使用api进行缩放
   disableMouseWheelZoom: false,
+  // 禁止双指缩放，你仍旧可以使用api进行缩放
+  // 需要注册TouchEvent插件后生效
+  disableTouchZoom: false,
   // 错误处理函数
   errorHandler: (code, error) => {
     console.error(code, error)
diff --git a/simple-mind-map/src/plugins/TouchEvent.js b/simple-mind-map/src/plugins/TouchEvent.js
index 7bad4fc3..8fa74f51 100644
--- a/simple-mind-map/src/plugins/TouchEvent.js
+++ b/simple-mind-map/src/plugins/TouchEvent.js
@@ -48,6 +48,7 @@ class TouchEvent {
       let touch = e.touches[0]
       this.dispatchMouseEvent('mousemove', touch.target, touch)
     } else if (len === 2) {
+      if (this.mindMap.opt.disableTouchZoom) return
       let touch1 = e.touches[0]
       let touch2 = e.touches[1]
       let ox = touch1.clientX - touch2.clientX