Speed-up Border rendering by avoiding useless pass during size alloca…

…tion (dotnet#24844)

* Speed-up Border rendering by avoiding useless pass during size allocation

* User `BorderHandler.PlatformArrange` instead of `SizeAllocated`

src/Controls/src/Core/Border/Border.cs

@@ -309,16 +309,15 @@ protected override void OnPropertyChanged([CallerMemberName] string? propertyNam
 		{
 			base.OnPropertyChanged(propertyName);
 
-			if (propertyName == HeightProperty.PropertyName ||
-				propertyName == StrokeThicknessProperty.PropertyName ||
-				propertyName == StrokeShapeProperty.PropertyName ||
-				propertyName == WidthProperty.PropertyName)
+			if (propertyName == StrokeThicknessProperty.PropertyName || propertyName == StrokeShapeProperty.PropertyName)
 			{
-				Handler?.UpdateValue(nameof(IBorderStroke.Shape));
 				UpdateStrokeShape();
+				Handler?.UpdateValue(nameof(IBorderStroke.Shape));
 			}
 			else if (propertyName == StrokeDashArrayProperty.PropertyName)
+			{
 				Handler?.UpdateValue(nameof(IBorderStroke.StrokeDashPattern));
+			}
 		}
 
 		void OnStrokeDashArrayChanged(object? sender, NotifyCollectionChangedEventArgs e)

src/Controls/src/Core/PublicAPI/net-maccatalyst/PublicAPI.Unshipped.txt

@@ -1,2 +1,2 @@
 #nullable enable
-override Microsoft.Maui.Controls.Handlers.Compatibility.FrameRenderer.MovedToWindow() -> void
+override Microsoft.Maui.Controls.Handlers.Compatibility.FrameRenderer.MovedToWindow() -> void

src/Controls/src/Core/PublicAPI/net-windows/PublicAPI.Unshipped.txt

@@ -1 +1 @@
-#nullable enable
+#nullable enable

src/Core/src/Handlers/Border/BorderHandler.cs

@@ -11,6 +11,8 @@
 using PlatformView = System.Object;
 #endif
 
+using Microsoft.Maui.Graphics;
+
 namespace Microsoft.Maui.Handlers
 {
 	/// <summary>
@@ -40,6 +42,8 @@ public partial class BorderHandler : IBorderHandler
 		public static CommandMapper<IBorderView, BorderHandler> CommandMapper = new(ViewCommandMapper)
 		{
 		};
+
+		private Size _lastSize;
 
 		public BorderHandler() : base(Mapper, CommandMapper)
 		{
@@ -60,6 +64,18 @@ public BorderHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 
 		PlatformView IBorderHandler.PlatformView => PlatformView;
 
+		/// <inheritdoc />
+		public override void PlatformArrange(Rect rect)
+		{
+			base.PlatformArrange(rect);
+
+			if (_lastSize != rect.Size)
+			{
+				_lastSize = rect.Size;
+				UpdateValue(nameof(IBorderStroke.Shape));
+			}
+		}
+
 		/// <summary>
 		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
 		/// </summary>

src/Core/src/PublicAPI/net-android/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/net-ios/PublicAPI.Unshipped.txt

@@ -1,3 +1,4 @@
 #nullable enable
 override Microsoft.Maui.Platform.MauiCALayer.AddAnimation(CoreAnimation.CAAnimation! animation, string? key) -> void
-*REMOVED*override Microsoft.Maui.Handlers.BorderHandler.ConnectHandler(Microsoft.Maui.Platform.ContentView! platformView) -> void
+*REMOVED*override Microsoft.Maui.Handlers.BorderHandler.ConnectHandler(Microsoft.Maui.Platform.ContentView! platformView) -> void
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/net-maccatalyst/PublicAPI.Unshipped.txt

@@ -1,3 +1,4 @@
 #nullable enable
 override Microsoft.Maui.Platform.MauiCALayer.AddAnimation(CoreAnimation.CAAnimation! animation, string? key) -> void
 *REMOVED*override Microsoft.Maui.Handlers.BorderHandler.ConnectHandler(Microsoft.Maui.Platform.ContentView! platformView) -> void
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/net-tizen/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/net-windows/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/net/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/netstandard/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void

src/Core/src/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt

@@ -1 +1,2 @@
 #nullable enable
+override Microsoft.Maui.Handlers.BorderHandler.PlatformArrange(Microsoft.Maui.Graphics.Rect rect) -> void