From b403a7a25dce68d02bdda3591f32f72e47f8efd2 Mon Sep 17 00:00:00 2001
From: fufesou <fufesou@users.noreply.github.com>
Date: Sat, 27 Apr 2024 15:01:21 +0800
Subject: [PATCH] fix: scroll percent is auto reset after detecting displays
 change (#7845)

Signed-off-by: fufesou <shuanglongchen@yeah.net>
---
 flutter/lib/models/model.dart | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/flutter/lib/models/model.dart b/flutter/lib/models/model.dart
index 7edaa8f06..486113eae 100644
--- a/flutter/lib/models/model.dart
+++ b/flutter/lib/models/model.dart
@@ -1017,6 +1017,8 @@ class FfiModel with ChangeNotifier {
         }
       }
     }
+    parent.target!.canvasModel
+        .tryUpdateScrollStyle(Duration(milliseconds: 300), null);
     notifyListeners();
   }
 
@@ -1412,10 +1414,20 @@ class CanvasModel with ChangeNotifier {
     if (refreshMousePos) {
       parent.target?.inputModel.refreshMousePos();
     }
-    if (style == kRemoteViewStyleOriginal &&
-        _scrollStyle == ScrollStyle.scrollbar) {
-      updateScrollPercent();
+    tryUpdateScrollStyle(Duration.zero, style);
+  }
+
+  tryUpdateScrollStyle(Duration duration, String? style) async {
+    if (_scrollStyle != ScrollStyle.scrollbar) return;
+    style ??= await bind.sessionGetViewStyle(sessionId: sessionId);
+    if (style != kRemoteViewStyleOriginal) {
+      return;
     }
+
+    _resetScroll();
+    Future.delayed(duration, () async {
+      updateScrollPercent();
+    });
   }
 
   updateScrollStyle() async {