fix: URI launchers to use the Windows implementation on Windows and t…

…he Linux implementation on Linux

src/Uno.UI.Runtime.Skia.Gtk/Extensions/GtkExtensionsRegistrar.cs

@@ -1,4 +1,5 @@
-using Uno.ApplicationModel.DataTransfer;
+using System.Runtime.InteropServices;
+using Uno.ApplicationModel.DataTransfer;
 using Uno.Extensions.ApplicationModel.Core;
 using Uno.Extensions.Storage.Pickers;
 using Uno.Extensions.System;
@@ -40,7 +41,7 @@ internal static void Register()
 		ApiExtensibility.Register(typeof(ISystemThemeHelperExtension), o => new GtkSystemThemeHelperExtension(o));
 		ApiExtensibility.Register(typeof(Windows.Graphics.Display.IDisplayInformationExtension), o => new GtkDisplayInformationExtension(o));
 		ApiExtensibility.Register<TextBoxView>(typeof(IOverlayTextBoxViewExtension), o => new TextBoxViewExtension(o));
-		ApiExtensibility.Register(typeof(ILauncherExtension), o => new LinuxLauncherExtension(o));
+		ApiExtensibility.Register(typeof(ILauncherExtension), o => RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? new WindowsLauncherExtension(o) : new LinuxLauncherExtension(o));
 		ApiExtensibility.Register<FileOpenPicker>(typeof(IFileOpenPickerExtension), o => new FileOpenPickerExtension(o));
 		ApiExtensibility.Register<FolderPicker>(typeof(IFolderPickerExtension), o => new FolderPickerExtension(o));
 		ApiExtensibility.Register(typeof(IClipboardExtension), o => new ClipboardExtensions(o));

src/Uno.UI.Runtime.Skia.Wpf/Extensions/WpfExtensionsRegistrar.cs

@@ -20,6 +20,7 @@
 using Windows.Storage.Pickers;
 using Windows.System.Profile.Internal;
 using Microsoft.UI.Xaml.Controls;
+using Uno.UI.Runtime.Skia.Extensions.System;
 using Uno.UI.Runtime.Skia.Wpf.Input;
 
 namespace Uno.UI.Runtime.Skia.Wpf.Extensions;
@@ -49,7 +50,7 @@ internal static void Register()
 		ApiExtensibility.Register(typeof(IFileSavePickerExtension), o => new FileSavePickerExtension(o));
 		ApiExtensibility.Register(typeof(IConnectionProfileExtension), o => new WindowsConnectionProfileExtension(o));
 		ApiExtensibility.Register<TextBoxView>(typeof(IOverlayTextBoxViewExtension), o => new TextBoxViewExtension(o));
-		ApiExtensibility.Register(typeof(ILauncherExtension), o => new LauncherExtension(o));
+		ApiExtensibility.Register(typeof(ILauncherExtension), o => new WindowsLauncherExtension(o));
 		ApiExtensibility.Register(typeof(IClipboardExtension), o => new ClipboardExtensions(o));
 		ApiExtensibility.Register(typeof(IAnalyticsInfoExtension), o => new AnalyticsInfoExtension());
 		ApiExtensibility.Register(typeof(ISystemNavigationManagerPreviewExtension), o => new SystemNavigationManagerPreviewExtension());

src/Uno.UWP/System/LinuxLauncherExtension.skia.cs

@@ -50,7 +50,7 @@ public Task<LaunchQuerySupportStatus> QueryUriSupportAsync(Uri uri, LaunchQueryS
 					}
 				}
 
-				// Guaranteed to work on all Linux Gtk platforms.
+				// Should work with most Linux environments
 				canOpenUri ??= CheckMimeTypeAssociations(uri);
 
 				return canOpenUri.Value ?

src/Uno.UI.Runtime.Skia.Wpf/Extensions/System/LauncherExtension.cs → src/Uno.UWP/System/WindowsLauncherExtension.skia.cs

@@ -1,16 +1,17 @@
-#nullable enable
+#nullable enable
 
 using System;
 using System.Diagnostics;
 using System.Threading.Tasks;
 using Microsoft.Win32;
 using Windows.System;
+using Uno.Extensions.System;
 
-namespace Uno.Extensions.System
+namespace Uno.UI.Runtime.Skia.Extensions.System
 {
-	internal class LauncherExtension : ILauncherExtension
+	internal class WindowsLauncherExtension : ILauncherExtension
 	{
-		public LauncherExtension(object owner)
+		public WindowsLauncherExtension(object owner)
 		{
 		}