feat: WinUI ImageIcon

src/Uno.UI/Microsoft/UI/Xaml/Controls/ImageIcon/ImageIcon.Properties.cs

@@ -0,0 +1,24 @@
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Media;
+
+namespace Microsoft.UI.Xaml.Controls
+{
+	public partial class ImageIcon
+	{
+		public ImageSource Source
+		{
+			get => (ImageSource)GetValue(SourceProperty);
+			set => SetValue(SourceProperty, value);
+		}
+
+		public static DependencyProperty SourceProperty { get; } =
+			DependencyProperty.Register(nameof(Source), typeof(ImageSource), typeof(ImageIcon), new PropertyMetadata(null, OnSourcePropertyChanged));
+
+
+		private static void OnSourcePropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
+		{
+			var owner = sender as ImageIcon;
+			owner?.OnSourcePropertyChanged(args);
+		}
+	}
+}

src/Uno.UI/Microsoft/UI/Xaml/Controls/ImageIcon/ImageIcon.Uno.cs

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+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Media;
+
+namespace Microsoft.UI.Xaml.Controls
+{
+	public partial class ImageIcon
+	{
+		private bool _initialized = false;
+
+		private void InitializeVisualTree()
+		{
+			if (!_initialized)
+			{
+				var image = new Image
+				{
+					Stretch = Stretch.Uniform
+				};
+
+				var grid = new Grid();
+				grid.Children.Add(image);
+
+				AddIconElementView(grid);
+			}
+		}
+	}
+}

src/Uno.UI/Microsoft/UI/Xaml/Controls/ImageIcon/ImageIcon.cs

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+#nullable enable
+
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Media;
+
+namespace Microsoft.UI.Xaml.Controls
+{
+	public partial class ImageIcon : IconElement
+	{
+		private Image? m_rootImage = null;
+
+		public ImageIcon()
+		{
+		}
+
+		protected override void OnApplyTemplate()
+		{
+#if HAS_UNO
+			// Uno specific: WinUI shares the visual tree initialziation with BitmapIcon
+			InitializeVisualTree();
+#endif
+
+			if (VisualTreeHelper.GetChild(this, 0) is Grid grid)
+			{
+				var image = (Image)VisualTreeHelper.GetChild(grid, 0);
+				image.Source = Source;
+				m_rootImage = image;
+			}
+			else
+			{
+				m_rootImage = null;
+			}
+		}
+
+		private void OnSourcePropertyChanged(DependencyPropertyChangedEventArgs agrs)
+		{
+			if (m_rootImage is { } image)
+			{
+				image.Source = Source;
+			}
+		}
+	}
+}

src/Uno.UI/Microsoft/UI/Xaml/Controls/ImageIcon/ImageIcon.xaml

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+<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:Microsoft.UI.Xaml.Controls">
+
+    <Style TargetType="local:ImageIcon">
+    </Style>
+
+</ResourceDictionary>