Feature: Added support for PowerToys Peek (#17954)

Author: yaira2

src/Files.App/Services/PreviewPopupProviders/PowerToysPeekProvider.cs

@@ -0,0 +1,75 @@
+// Copyright (c) Files Community
+// Licensed under the MIT License.
+
+using System.IO;
+
+namespace Files.App.Services.PreviewPopupProviders
+{
+	public sealed class PowerToysPeekProvider : IPreviewPopupProvider
+	{
+		public static PowerToysPeekProvider Instance { get; } = new();
+
+		private static string? _peekExecutablePath;
+
+		public async Task TogglePreviewPopupAsync(string path)
+		{
+			await DoPreviewAsync(path);
+		}
+
+		public async Task SwitchPreviewAsync(string path)
+		{
+			// Not used
+		}
+
+		private async Task DoPreviewAsync(string path)
+		{
+			if (_peekExecutablePath != null)
+			{
+				try
+				{
+					var psi = new ProcessStartInfo
+					{
+						FileName = _peekExecutablePath,
+						Arguments = $"\"{path}\"",
+						UseShellExecute = true,
+						CreateNoWindow = true,
+						WindowStyle = ProcessWindowStyle.Hidden
+					};
+
+					Process.Start(psi);
+				}
+				catch
+				{
+					// Ignore
+				}
+			}
+		}
+
+		public async Task<bool> DetectAvailability()
+		{
+			var exeName = "PowerToys.Peek.UI.exe";
+			var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+			var perUserPath = Path.Combine(localAppData, "PowerToys", "WinUI3Apps", exeName);
+
+			// User path
+			if (File.Exists(perUserPath))
+			{
+				_peekExecutablePath = perUserPath;
+				return true;
+			}
+
+			// Machine-wide path
+			string programFiles = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles);
+			string machinePath = Path.Combine(programFiles, "PowerToys", "WinUI3Apps", exeName);
+
+			if (File.Exists(machinePath))
+			{
+				_peekExecutablePath = machinePath;
+				return true;
+			}
+
+			// Not found
+			return false;
+		}
+	}
+}

src/Files.App/Services/PreviewPopupProviders/PreviewPopupService.cs

@@ -8,6 +8,8 @@ internal sealed partial class PreviewPopupService : ObservableObject, IPreviewPo
 	{
 		public async Task<IPreviewPopupProvider?> GetProviderAsync()
 		{
+			if (await PowerToysPeekProvider.Instance.DetectAvailability())
+				return await Task.FromResult<IPreviewPopupProvider>(PowerToysPeekProvider.Instance);
 			if (await QuickLookProvider.Instance.DetectAvailability())
 				return await Task.FromResult<IPreviewPopupProvider>(QuickLookProvider.Instance);
 			if (await SeerProProvider.Instance.DetectAvailability())