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Synchronize custom-scrollbar cursor geometry after relayout

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This commit is contained in:
fufesou
2026-09-13 14:53:47 +08:00
parent b630f14483
commit 16088cfc80
3 changed files with 18 additions and 14 deletions
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10
flutter/lib/desktop/pages/remote_page.dart
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@@ -1173,7 +1173,7 @@ class _ImagePaintState extends State<ImagePaint> {
child: child);
});
if (c.imageOverflow.isTrue && c.scrollStyle != ScrollStyle.scrollauto) {
_syncEdgeScrollAfterLayout(c);
_syncScrollAfterLayout(c);
final paintWidth = c.getDisplayWidth() * s;
final paintHeight = c.getDisplayHeight() * s;
final paintSize = Size(paintWidth, paintHeight);
@@ -1218,13 +1218,15 @@ class _ImagePaintState extends State<ImagePaint> {
}
}
void _syncEdgeScrollAfterLayout(CanvasModel canvas) {
if (canvas.scrollStyle != ScrollStyle.scrolledge) return;
void _syncScrollAfterLayout(CanvasModel canvas) {
// Custom scrollbars also paint from scroll fractions; preserve Original's path.
if (canvas.scrollStyle != ScrollStyle.scrolledge &&
canvas.viewStyle.style != kRemoteViewStyleCustom) return;
final renderedScroll = (canvas.scrollX, canvas.scrollY);
// Relayout can clamp or detach scroll positions without a scroll event.
SchedulerBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
canvas.updateEdgeScrollAfterLayout(renderedScroll);
canvas.updateScrollAfterLayout(renderedScroll);
});
}

2
flutter/lib/models/model.dart
View File

@@ -2702,7 +2702,7 @@ class CanvasModel with ChangeNotifier {
notifyListeners();
}
void updateEdgeScrollAfterLayout((double, double) renderedScroll) {
void updateScrollAfterLayout((double, double) renderedScroll) {
updateScrollPercent();
// A delayed refresh may already have changed the model without repainting.
if (renderedScroll != (_scrollX, _scrollY)) {