From 7b45cdd145dc4af8403744019e6176bd980bb379 Mon Sep 17 00:00:00 2001
From: tangshengzhi <tangshengzhi@zhikan.net.cn>
Date: Sun, 10 Oct 2021 18:43:34 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E5=86=85=E5=AD=98=E6=B3=84?=
 =?UTF-8?q?=E6=BC=8F=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/index.ts            | 5 ++++-
 src/ts/ui/initUI.ts     | 8 ++++++--
 src/ts/wysiwyg/index.ts | 8 +++++++-
 types/index.d.ts        | 1 +
 4 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index b34dadc59..10f801c64 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -19,7 +19,7 @@ import {Tip} from "./ts/tip/index";
 import {Toolbar} from "./ts/toolbar/index";
 import {disableToolbar, hidePanel} from "./ts/toolbar/setToolbar";
 import {enableToolbar} from "./ts/toolbar/setToolbar";
-import {initUI} from "./ts/ui/initUI";
+import {initUI, UIUnbindListener} from "./ts/ui/initUI";
 import {setCodeTheme} from "./ts/ui/setCodeTheme";
 import {setContentTheme} from "./ts/ui/setContentTheme";
 import {setPreviewMode} from "./ts/ui/setPreviewMode";
@@ -322,6 +322,9 @@ class Vditor extends VditorMethod {
         this.vditor.element.removeAttribute("style");
         document.getElementById("vditorIconScript").remove();
         this.clearCache();
+
+        UIUnbindListener();
+        this.vditor.wysiwyg.unbindListener();
     }
 
     /** 获取评论 ID */
diff --git a/src/ts/ui/initUI.ts b/src/ts/ui/initUI.ts
index 9f7cc7492..7710e87a0 100644
--- a/src/ts/ui/initUI.ts
+++ b/src/ts/ui/initUI.ts
@@ -141,10 +141,14 @@ export const setTypewriterPosition = (vditor: IVditor) => {
         ((height - vditor.toolbar.element.offsetHeight) / 2) + "px");
 };
 
+let resizeCb = () => {}
+export function UIUnbindListener () {
+    window.removeEventListener("resize", resizeCb)
+}
 const afterRender = (vditor: IVditor, contentElement: HTMLElement) => {
     setTypewriterPosition(vditor);
-
-    window.addEventListener("resize", () => {
+    UIUnbindListener()
+    window.addEventListener("resize", resizeCb = () => {
         setPadding(vditor);
         setTypewriterPosition(vditor);
     });
diff --git a/src/ts/wysiwyg/index.ts b/src/ts/wysiwyg/index.ts
index 5c538f4eb..b02f3a5ee 100644
--- a/src/ts/wysiwyg/index.ts
+++ b/src/ts/wysiwyg/index.ts
@@ -237,8 +237,14 @@ class WYSIWYG {
         event.clipboardData.setData("text/html", "");
     }
 
+    private scrollListener = () => {};
+    public unbindListener() {
+        window.removeEventListener("scroll", this.scrollListener)
+    }
+
     private bindEvent(vditor: IVditor) {
-        window.addEventListener("scroll", () => {
+        this.unbindListener();
+        window.addEventListener("scroll", this.scrollListener  = () => {
             hidePanel(vditor, ["hint"]);
             if (this.popover.style.display !== "block" || this.selectPopover.style.display !== "block") {
                 return;
diff --git a/types/index.d.ts b/types/index.d.ts
index 3427b5b99..fb723a123 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -747,6 +747,7 @@ interface IVditor {
         triggerRemoveComment(vditor: IVditor): void,
         showComment(): void,
         hideComment(): void,
+        unbindListener(): void
     };
     ir?: {
         range: Range,