Fix CascadeInputTransparent (dotnet#442)

src/Controls/src/Core/HandlerImpl/Layout/Layout.Tizen.cs

@@ -4,19 +4,22 @@ public partial class Layout
 	{
 		public static void MapInputTransparent(LayoutHandler handler, Layout layout)
 		{
+			if (handler.PlatformView == null)
+				return;
+
 			if (layout.CascadeInputTransparent)
 			{
-				handler.PlatformView?.UpdateInputTransparent(handler, layout);
+				// Sensitive property on NUI View was false, disabled all touch event including children
+				handler.PlatformView.Sensitive = !layout.InputTransparent;
+				handler.PlatformView.InputTransparent = false;
 			}
 			else
 			{
-				// TODO. need to fix
-				// If CascadeInputTransparent is true, child should be got an event
-				// But, in NUI, if Container Sensitive was false, children also can't get an event
-				// So, We can't set Sensitive to false, and we should pass through an event into below view
-				// To pass through an event, on LayoutHandler.tizen I will ovrride OnHitTest method, and returning false when InputTransparent was true
+				// InputTransparent property on LayoutViewGroup was false,
+				// Only LayoutViewGroup event was disabled but children are allowed
+				handler.PlatformView.InputTransparent = layout.InputTransparent;
+				handler.PlatformView.Sensitive = true;
 			}
-			layout.UpdateDescendantInputTransparent();
 		}
 	}
 }

src/Core/src/Platform/Tizen/LayoutViewGroup.cs

@@ -4,6 +4,7 @@
 using Rect = Microsoft.Maui.Graphics.Rect;
 using Size = Microsoft.Maui.Graphics.Size;
 using TSize = Tizen.UIExtensions.Common.Size;
+using TTouch = Tizen.NUI.Touch;
 
 namespace Microsoft.Maui.Platform
 {
@@ -26,6 +27,13 @@ public TSize Measure(double availableWidth, double availableHeight)
 			return CrossPlatformMeasure?.Invoke(availableWidth.ToScaledDP(), availableHeight.ToScaledDP()).ToPixel() ?? new TSize(0, 0);
 		}
 
+		public bool InputTransparent { get; set; } = false;
+
+		protected override bool HitTest(TTouch touch)
+		{
+			return !InputTransparent;
+		}
+
 		void OnLayoutUpdated(object? sender, LayoutEventArgs e)
 		{
 			var platformGeometry = this.GetBounds().ToDP();