TheXamlGuy
72 lines
2.0 KiB
C#
72 lines
2.0 KiB
C#
using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Controls.Templates;
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using Avalonia.LogicalTree;
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using Avalonia.Metadata;
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namespace Toolkit.UI.Controls.Avalonia;
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public class ContentIcon : FluentAvalonia.UI.Controls.FAIconElement
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{
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public static readonly StyledProperty<object?> ContentProperty =
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AvaloniaProperty.Register<ContentIcon, object?>("Content");
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public static readonly StyledProperty<IDataTemplate?> ContentTemplateProperty =
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AvaloniaProperty.Register<ContentIcon, IDataTemplate?>("ContentTemplate");
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private ContentControl? content;
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[Content]
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public object? Content
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{
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get => GetValue(ContentProperty);
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set => SetValue(ContentProperty, value);
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}
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public IDataTemplate? IconTemplate
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{
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get => GetValue(ContentTemplateProperty);
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set => SetValue(ContentTemplateProperty, value);
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}
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protected override Size MeasureOverride(Size availableSize)
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{
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if (content == null)
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{
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CreateContent();
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}
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return base.MeasureOverride(availableSize);
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}
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protected override void OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs args)
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{
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if (VisualChildren.Count > 0)
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{
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((ILogical)VisualChildren[0]).NotifyAttachedToLogicalTree(args);
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}
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base.OnAttachedToLogicalTree(args);
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}
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protected override void OnDetachedFromLogicalTree(LogicalTreeAttachmentEventArgs args)
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{
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if (VisualChildren.Count > 0)
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{
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((ILogical)VisualChildren[0]).NotifyDetachedFromLogicalTree(args);
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}
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base.OnDetachedFromLogicalTree(args);
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}
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private void CreateContent()
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{
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content = new ContentControl();
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content.Bind(ContentControl.ContentProperty, this.GetBindingObservable(ContentProperty));
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content.Bind(ContentControl.ContentTemplateProperty, this.GetBindingObservable(ContentTemplateProperty));
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LogicalChildren.Add(content);
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VisualChildren.Add(content);
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}
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}
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