1  // Copyright (c) Microsoft Corporation
 2  // The Microsoft Corporation licenses this file to you under the MIT license.
 3  // See the LICENSE file in the project root for more information.
 4  
 5  using Microsoft.CmdPal.UI.ViewModels.Services;
 6  using Microsoft.UI.Xaml;
 7  using Windows.UI;
 8  using Windows.UI.ViewManagement;
 9  
10  namespace Microsoft.CmdPal.UI.Services;
11  
12  /// <summary>
13  /// Provides theme resources and acrylic backdrop parameters matching the default Command Palette theme.
14  /// </summary>
15  internal sealed class NormalThemeProvider : IThemeProvider
16  {
17      private static readonly Color DarkBaseColor = Color.FromArgb(255, 32, 32, 32);
18      private static readonly Color LightBaseColor = Color.FromArgb(255, 243, 243, 243);
19      private readonly UISettings _uiSettings;
20  
21      public NormalThemeProvider(UISettings uiSettings)
22      {
23          ArgumentNullException.ThrowIfNull(uiSettings);
24          _uiSettings = uiSettings;
25      }
26  
27      public string ThemeKey => "normal";
28  
29      public string ResourcePath => "ms-appx:///Styles/Theme.Normal.xaml";
30  
31      public AcrylicBackdropParameters GetAcrylicBackdrop(ThemeContext context)
32      {
33          var isLight = context.Theme == ElementTheme.Light ||
34                        (context.Theme == ElementTheme.Default &&
35                         _uiSettings.GetColorValue(UIColorType.Background).R > 128);
36  
37          return new AcrylicBackdropParameters(
38              TintColor: isLight ? LightBaseColor : DarkBaseColor,
39              FallbackColor: isLight ? LightBaseColor : DarkBaseColor,
40              TintOpacity: 0.5f,
41              LuminosityOpacity: isLight ? 0.9f : 0.96f);
42      }
43  }