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UpdateBadgePosition when the size of _badgeContainer changes

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Gehongyan
2025-04-29 10:57:32 +08:00
parent 2204e26c4a
commit d9c2a845a7
1 changed files with 9 additions and 9 deletions
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18
src/Ursa/Controls/Badge/Badge.cs
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@@ -2,7 +2,6 @@ using Avalonia;
using Avalonia.Controls; using Avalonia.Controls;
using Avalonia.Controls.Metadata; using Avalonia.Controls.Metadata;
using Avalonia.Controls.Primitives; using Avalonia.Controls.Primitives;
using Avalonia.Interactivity;
using Avalonia.Media; using Avalonia.Media;
using Avalonia.Styling; using Avalonia.Styling;
using Ursa.Common; using Ursa.Common;
@@ -67,7 +66,6 @@ public class Badge : HeaderedContentControl
{ {
CornerPositionProperty.Changed.AddClassHandler<Badge>((badge, _) => badge.UpdateBadgePosition()); CornerPositionProperty.Changed.AddClassHandler<Badge>((badge, _) => badge.UpdateBadgePosition());
DotProperty.Changed.AddClassHandler<Badge>((badge, _) => badge.UpdateBadgePosition()); DotProperty.Changed.AddClassHandler<Badge>((badge, _) => badge.UpdateBadgePosition());
AffectsArrange<Badge>(HeaderProperty, HeaderTemplateProperty);
} }
protected override void OnApplyTemplate(TemplateAppliedEventArgs e) protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
@@ -76,19 +74,21 @@ public class Badge : HeaderedContentControl
_badgeContainer = e.NameScope.Find<Border>(PART_BadgeContainer); _badgeContainer = e.NameScope.Find<Border>(PART_BadgeContainer);
} }
protected override void OnLoaded(RoutedEventArgs e) protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{ {
base.OnLoaded(e); base.OnAttachedToVisualTree(e);
UpdateBadgePosition(); ApplyTemplate();
_badgeContainer?.AddHandler(SizeChangedEvent, OnBadgeSizeChanged);
} }
protected override Size ArrangeOverride(Size finalSize) protected override void OnDetachedFromVisualTree(VisualTreeAttachmentEventArgs e)
{ {
var size = base.ArrangeOverride(finalSize); _badgeContainer?.RemoveHandler(SizeChangedEvent, OnBadgeSizeChanged);
UpdateBadgePosition(); base.OnDetachedFromVisualTree(e);
return size;
} }
private void OnBadgeSizeChanged(object? sender, SizeChangedEventArgs e) => UpdateBadgePosition();
private void UpdateBadgePosition() private void UpdateBadgePosition()
{ {
var vertical = CornerPosition is CornerPosition.BottomLeft or CornerPosition.BottomRight ? 1 : -1; var vertical = CornerPosition is CornerPosition.BottomLeft or CornerPosition.BottomRight ? 1 : -1;