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Refactor ListBox bindings

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This commit is contained in:
chinboy
2025-08-27 15:42:38 +08:00
parent 90edc059df
commit f72026a1bb
1 changed files with 37 additions and 5 deletions
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src/AtomUI.Controls/ListBox/ListBox.cs
+37 -5
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@@ -1,4 +1,5 @@
using System.Reactive.Disposables;
using System.Collections.Specialized;
using System.Reactive.Disposables;
using AtomUI.Data;
using AtomUI.Theme;
using AtomUI.Theme.Data;
@@ -58,10 +59,34 @@ public class ListBox : AvaloniaListBox,
CompositeDisposable? IResourceBindingManager.ResourceBindingsDisposable { get; set; }
#endregion
private Dictionary<ListBoxItem, CompositeDisposable> _itemsBindingDisposables = new();
public ListBox()
{
this.RegisterResources();
Items.CollectionChanged += HandleCollectionChanged;
}
private void HandleCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
if (e.Action == NotifyCollectionChangedAction.Remove && e.OldItems.Count > 0)
{
foreach (var item in e.OldItems)
{
if (item is ListBoxItem listBoxItem)
{
if (_itemsBindingDisposables.TryGetValue(listBoxItem, out var disposable))
{
disposable.Dispose();
_itemsBindingDisposables.Remove(listBoxItem);
}
}
}
}
}
}
protected override Control CreateContainerForItemOverride(object? item, int index, object? recycleKey)
@@ -82,10 +107,17 @@ public class ListBox : AvaloniaListBox,
base.PrepareContainerForItemOverride(container, item, index);
if (container is ListBoxItem listBoxItem)
{
BindUtils.RelayBind(this, IsMotionEnabledProperty, listBoxItem, ListBoxItem.IsMotionEnabledProperty);
BindUtils.RelayBind(this, SizeTypeProperty, listBoxItem, ListBoxItem.SizeTypeProperty);
BindUtils.RelayBind(this, DisabledItemHoverEffectProperty, listBoxItem,
ListBoxItem.DisabledItemHoverEffectProperty);
var disposables = new CompositeDisposable(3);
disposables.Add(BindUtils.RelayBind(this, IsMotionEnabledProperty, listBoxItem, ListBoxItem.IsMotionEnabledProperty));
disposables.Add(BindUtils.RelayBind(this, SizeTypeProperty, listBoxItem, ListBoxItem.SizeTypeProperty));
disposables.Add(BindUtils.RelayBind(this, DisabledItemHoverEffectProperty, listBoxItem,
ListBoxItem.DisabledItemHoverEffectProperty));
if (_itemsBindingDisposables.TryGetValue(listBoxItem, out var oldDisposables))
{
oldDisposables.Dispose();
_itemsBindingDisposables.Remove(listBoxItem);
}
_itemsBindingDisposables.Add(listBoxItem, disposables);
}
}