feat: Allow simulating touch input in Samples app

src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Presentation/SampleChooserViewMode.Properties.cs

@@ -25,6 +25,7 @@
 using Uno.UI.Xaml.Core;
 using WinUICoreServices = Uno.UI.Xaml.Core.CoreServices;
 using Uno.UI;
+using Uno;
 #endif
 
 namespace SampleControl.Presentation
@@ -448,6 +449,16 @@ public bool UseRtl
 			}
 		}
 
+		public bool SimulateTouch
+		{
+			get => WinRTFeatureConfiguration.DebugOptions.SimulateTouch;
+			set
+			{
+				WinRTFeatureConfiguration.DebugOptions.SimulateTouch = value;
+				RaisePropertyChanged();
+			}
+		}
+
 #if HAS_UNO
 		public bool PreventLightDismissOnWindowDeactivated
 		{

src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Views/Controls/SampleChooserControl.xaml

@@ -573,6 +573,11 @@
 										<FontIcon FontFamily="{ThemeResource SymbolThemeFontFamily}" Glyph="&#xE92F;" />
 									</not_win:ToggleMenuFlyoutItem.Icon>
 								</not_win:ToggleMenuFlyoutItem>
+								<not_win:ToggleMenuFlyoutItem Text="Simulate touch" IsChecked="{Binding SimulateTouch, Mode=TwoWay}">
+									<not_win:ToggleMenuFlyoutItem.Icon>
+										<FontIcon FontFamily="{ThemeResource SymbolThemeFontFamily}" Glyph="&#xE815;" />
+									</not_win:ToggleMenuFlyoutItem.Icon>
+								</not_win:ToggleMenuFlyoutItem>
 								<MenuFlyoutItem Text="Log view dump" Command="{Binding LogViewDumpCommand}" Visibility="{Binding IsDebug, Converter={StaticResource TrueToVisible}}">
 									<MenuFlyoutItem.Icon>
 										<FontIcon FontFamily="{ThemeResource SymbolThemeFontFamily}" Glyph="&#xEBD2;" />

src/Uno.UWP/Devices/Input/PointerDevice.cs

@@ -1,4 +1,5 @@
 using System.Runtime.Serialization.Formatters;
+using Uno;
 
 namespace Windows.Devices.Input
 {
@@ -10,6 +11,13 @@ public partial class PointerDevice
 
 		internal static PointerDevice For(PointerDeviceType type)
 		{
+#if DEBUG
+			if (WinRTFeatureConfiguration.DebugOptions.SimulateTouch)
+			{
+				type = PointerDeviceType.Touch;
+			}
+#endif
+
 			// We cache them as we don't implement any other properties than the PointerDeviceType
 			// but this is probably not really valid...
 			switch (type)

src/Uno.UWP/FeatureConfiguration/WinRTFeatureConfiguration.cs

@@ -45,4 +45,12 @@ public static class StoreContext
 		public static bool TestMode { get; set; }
 	}
 #endif
+
+	internal static class DebugOptions
+	{
+		/// <summary>
+		/// Adjusts all PointerPoint instances as if they were of type Touch.
+		/// </summary>
+		public static bool SimulateTouch { get; set; }
+	}
 }