From 967e612fc07013efcaf3699cee5afa8b173a2b40 Mon Sep 17 00:00:00 2001
From: YMCoke <1272698173@qq.com>
Date: Fri, 19 Mar 2021 17:09:49 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E9=BC=A0=E6=A0=87?=
 =?UTF-8?q?=E7=A7=BB=E5=87=BA=E7=BC=96=E8=BE=91=E5=8C=BA=E5=90=8E=E8=8E=B7?=
 =?UTF-8?q?=E5=8F=96=E9=80=89=E5=8C=BA=E5=BC=82=E5=B8=B8?=
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---
 src/text/index.ts | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/text/index.ts b/src/text/index.ts
index 7c0f38c56..63d6a16c9 100644
--- a/src/text/index.ts
+++ b/src/text/index.ts
@@ -285,18 +285,25 @@ class Text {
         $textElem.on('click', onceClickSaveRange)
 
         function handleMouseUp() {
-            // 在编辑器区域之内完成点击，取消鼠标滑动到编辑区外面的事件
-            $textElem.off('mouseleave', saveRange)
-
+            // 在编辑器区域之外完成抬起，保存此时编辑区内的新选区，取消此时鼠标抬起事件
+            saveRange()
             $document.off('mouseup', handleMouseUp)
         }
-        $textElem.on('mousedown', () => {
-            // mousedown 状态下，鼠标滑动到编辑区域外面，也需要保存选区
-            $textElem.on('mouseleave', saveRange)
+        function listenMouseLeave() {
+            // 当鼠标移动到外面，要监听鼠标抬起操作
             $document.on('mouseup', handleMouseUp)
+            // 首次移出时即接触leave监听，防止用户不断移入移出多次注册handleMouseUp
+            $textElem.off('mouseleave', listenMouseLeave)
+        }
+        $textElem.on('mousedown', () => {
+            // mousedown 状态下，要坚听鼠标滑动到编辑区域外面
+            $textElem.on('mouseleave', listenMouseLeave)
         })
 
         $textElem.on('mouseup', (e: MouseEvent) => {
+            // 记得移除$textElem的mouseleave事件, 避免内存泄露
+            $textElem.off('mouseleave', listenMouseLeave)
+
             const selection = editor.selection
             const range = selection.getRange()