From 81b15bda9deeea4be497eaaec8829cc4be748b0a Mon Sep 17 00:00:00 2001
From: zhangtiefeng02 <zhangtiefeng02@meituan.com>
Date: Wed, 15 Feb 2023 20:01:48 +0800
Subject: [PATCH] Prevent model selection synchronizing to DOMSelection during
 selection.

---
 src/domobserver.ts | 3 +++
 src/selection.ts   | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/domobserver.ts b/src/domobserver.ts
index 027bd385..72f52807 100644
--- a/src/domobserver.ts
+++ b/src/domobserver.ts
@@ -43,6 +43,7 @@ export class DOMObserver {
   currentSelection = new SelectionState
   onCharData: ((e: Event) => void) | null = null
   suppressingSelectionUpdates = false
+  lockDOMSelectionSync = false
 
   constructor(
     readonly view: EditorView,
@@ -132,7 +133,9 @@ export class DOMObserver {
       if (sel.focusNode && isEquivalentPosition(sel.focusNode, sel.focusOffset, sel.anchorNode!, sel.anchorOffset))
         return this.flushSoon()
     }
+    this.lockDOMSelectionSync = !!this.view.input.mouseDown
     this.flush()
+    this.lockDOMSelectionSync = false
   }
 
   setCurSelection() {
diff --git a/src/selection.ts b/src/selection.ts
index 4cb7b791..e5baeb69 100644
--- a/src/selection.ts
+++ b/src/selection.ts
@@ -64,7 +64,7 @@ export function selectionToDOM(view: EditorView, force = false) {
 
   if (view.cursorWrapper) {
     selectCursorWrapper(view)
-  } else {
+  } else if (!view.domObserver.lockDOMSelectionSync) {
     let {anchor, head} = sel, resetEditableFrom, resetEditableTo
     if (brokenSelectBetweenUneditable && !(sel instanceof TextSelection)) {
       if (!sel.$from.parent.inlineContent)