Add Flow Launcher Theme Selector to Sys plugin

Flow.Launcher.Core/Resource/Theme.cs

@@ -12,7 +12,6 @@
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.Logger;
 using Flow.Launcher.Infrastructure.UserSettings;
-using CommunityToolkit.Mvvm.DependencyInjection;
 using Flow.Launcher.Plugin;
 
 namespace Flow.Launcher.Core.Resource
@@ -35,6 +34,8 @@ public class Theme
         private string DirectoryPath => Path.Combine(Constant.ProgramDirectory, Folder);
         private string UserDirectoryPath => Path.Combine(DataLocation.DataDirectory(), Folder);
 
+        public string CurrentTheme => _settings.Theme;
+
         public bool BlurEnabled { get; set; }
 
         private double mainWindowWidth;

Plugins/Flow.Launcher.Plugin.Sys/Flow.Launcher.Plugin.Sys.csproj

@@ -39,6 +39,7 @@
   <ItemGroup>
     <ProjectReference Include="..\..\Flow.Launcher.Infrastructure\Flow.Launcher.Infrastructure.csproj" />
     <ProjectReference Include="..\..\Flow.Launcher.Plugin\Flow.Launcher.Plugin.csproj" />
+    <ProjectReference Include="..\..\Flow.Launcher.Core\Flow.Launcher.Core.csproj" />
   </ItemGroup>
 
   <ItemGroup>

Plugins/Flow.Launcher.Plugin.Sys/Languages/en.xaml

@@ -27,6 +27,7 @@
     <system:String x:Key="flowlauncher_plugin_sys_open_docs_tips_cmd">Flow Launcher Tips</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_open_userdata_location_cmd">Flow Launcher UserData Folder</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_toggle_game_mode_cmd">Toggle Game Mode</system:String>
+    <system:String x:Key="flowlauncher_plugin_sys_theme_selector_cmd">Set the Flow Launcher Theme</system:String>
 
     <!--  Command Descriptions  -->
     <system:String x:Key="flowlauncher_plugin_sys_shutdown_computer">Shutdown Computer</system:String>
@@ -49,8 +50,9 @@
     <system:String x:Key="flowlauncher_plugin_sys_open_docs_tips">Visit Flow Launcher's documentation for more help and how to use tips</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_open_userdata_location">Open the location where Flow Launcher's settings are stored</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_toggle_game_mode">Toggle Game Mode</system:String>
+    <system:String x:Key="flowlauncher_plugin_sys_theme_selector">Quickly change the Flow Launcher theme</system:String>
 
-        <!--  Dialogs  -->
+    <!--  Dialogs  -->
     <system:String x:Key="flowlauncher_plugin_sys_dlgtitle_success">Success</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_dlgtext_all_settings_saved">All Flow Launcher settings saved</system:String>
     <system:String x:Key="flowlauncher_plugin_sys_dlgtext_all_applicableplugins_reloaded">Reloaded all applicable plugin data</system:String>

Plugins/Flow.Launcher.Plugin.Sys/Main.cs

@@ -7,7 +7,6 @@
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.Logger;
 using Flow.Launcher.Infrastructure.UserSettings;
-using Flow.Launcher.Plugin.SharedCommands;
 using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.Security;
@@ -20,6 +19,7 @@ namespace Flow.Launcher.Plugin.Sys
     public class Main : IPlugin, ISettingProvider, IPluginI18n
     {
         private PluginInitContext context;
+        private ThemeSelector themeSelector;
         private Dictionary<string, string> KeywordTitleMappings = new Dictionary<string, string>();
 
         // SHTDN_REASON_MAJOR_OTHER indicates a generic shutdown reason that isn't categorized under hardware failure, software updates, or other predefined reasons.
@@ -34,6 +34,11 @@ public Control CreateSettingPanel()
 
         public List<Result> Query(Query query)
         {
+            if(query.Search.StartsWith(ThemeSelector.Keyword))
+            {
+                return themeSelector.Query(query);
+            }
+
             var commands = Commands();
             var results = new List<Result>();
             foreach (var c in commands)
@@ -82,6 +87,7 @@ private string GetDynamicTitle(Query query, Result result)
         public void Init(PluginInitContext context)
         {
             this.context = context;
+            themeSelector = new ThemeSelector(context);
             KeywordTitleMappings = new Dictionary<string, string>{
                 {"Shutdown", "flowlauncher_plugin_sys_shutdown_computer_cmd"},
                 {"Restart", "flowlauncher_plugin_sys_restart_computer_cmd"},
@@ -102,7 +108,8 @@ public void Init(PluginInitContext context)
                 {"Open Log Location", "flowlauncher_plugin_sys_open_log_location_cmd"},
                 {"Flow Launcher Tips", "flowlauncher_plugin_sys_open_docs_tips_cmd"},
                 {"Flow Launcher UserData Folder", "flowlauncher_plugin_sys_open_userdata_location_cmd"},
-                {"Toggle Game Mode", "flowlauncher_plugin_sys_toggle_game_mode_cmd"}
+                {"Toggle Game Mode", "flowlauncher_plugin_sys_toggle_game_mode_cmd"},
+                {"Set Flow Launcher Theme", "flowlauncher_plugin_sys_theme_selector_cmd"}
             };
         }
 
@@ -451,6 +458,18 @@ private List<Result> Commands()
                         context.API.ToggleGameMode();
                         return true;
                     }
+                },
+                new Result
+                {
+                    Title = "Set Flow Launcher Theme",
+                    SubTitle = context.API.GetTranslation("flowlauncher_plugin_sys_theme_selector"),
+                    IcoPath = "Images\\app.png",
+                    Glyph = new GlyphInfo (FontFamily:"/Resources/#Segoe Fluent Icons", Glyph:"\ue7fc"),
+                    Action = c =>
+                    {
+                        context.API.ChangeQuery($"{ThemeSelector.Keyword} ");
+                        return false;
+                    }
                 }
             });
 

Plugins/Flow.Launcher.Plugin.Sys/ThemeSelector.cs

@@ -0,0 +1,115 @@
+using System.Collections.Generic;
+using System.Linq;
+using CommunityToolkit.Mvvm.DependencyInjection;
+using Flow.Launcher.Core.Resource;
+using Flow.Launcher.Infrastructure.UserSettings;
+
+namespace Flow.Launcher.Plugin.Sys
+{
+    public class ThemeSelector
+    {
+        public const string Keyword = "fltheme";
+
+        private readonly Settings _settings;
+        private readonly Theme _theme;
+        private readonly PluginInitContext _context;
+
+        #region Theme Selection
+
+        // Theme select codes simplified from SettingsPaneThemeViewModel.cs
+
+        private Theme.ThemeData _selectedTheme;
+        private Theme.ThemeData SelectedTheme
+        {
+            get => _selectedTheme ??= Themes.Find(v => v.FileNameWithoutExtension == _theme.CurrentTheme);
+            set
+            {
+                _selectedTheme = value;
+                _theme.ChangeTheme(value.FileNameWithoutExtension);
+
+                if (_theme.BlurEnabled && _settings.UseDropShadowEffect)
+                {
+                    _theme.RemoveDropShadowEffectFromCurrentTheme();
+                    _settings.UseDropShadowEffect = false;
+                }
+            }
+        }
+
+        private List<Theme.ThemeData> Themes => _theme.LoadAvailableThemes();
+
+        #endregion
+
+        public ThemeSelector(PluginInitContext context)
+        {
+            _context = context;
+            _theme = Ioc.Default.GetRequiredService<Theme>();
+            _settings = Ioc.Default.GetRequiredService<Settings>();
+        }
+
+        public List<Result> Query(Query query)
+        {
+            var search = query.SecondToEndSearch;
+            if (string.IsNullOrWhiteSpace(search))
+            {
+                return Themes.Select(CreateThemeResult)
+                    .OrderBy(x => x.Title)
+                    .ToList();
+            }
+
+            return Themes.Select(theme => (theme, matchResult: _context.API.FuzzySearch(search, theme.Name)))
+                .Where(x => x.matchResult.IsSearchPrecisionScoreMet())
+                .Select(x => CreateThemeResult(x.theme, x.matchResult.Score, x.matchResult.MatchData))
+                .OrderBy(x => x.Title)
+                .ToList();
+        }
+
+        private Result CreateThemeResult(Theme.ThemeData theme) => CreateThemeResult(theme, 0, null);
+
+        private Result CreateThemeResult(Theme.ThemeData theme, int score, IList<int> highlightData)
+        {
+            string themeName = theme.Name;
+            string title;
+            if (theme == SelectedTheme)
+            {
+                title = $"{theme.Name} ★";
+                // Set current theme to the top
+                score = 2000;
+            }
+            else
+            {
+                title = theme.Name;
+                // Set them to 1000 so that they are higher than other non-theme records
+                score = 1000;
+            }
+
+            string description = string.Empty;
+            if (theme.IsDark == true)
+            {
+                description += _context.API.GetTranslation("TypeIsDarkToolTip");
+            }
+
+            if (theme.HasBlur == true)
+            {
+                if (!string.IsNullOrEmpty(description))
+                    description += " ";
+                description += _context.API.GetTranslation("TypeHasBlurToolTip");
+            }
+
+            return new Result
+            {
+                Title = title,
+                TitleHighlightData = highlightData,
+                SubTitle = description,
+                IcoPath = "Images\\theme_selector.png",
+                Glyph = new GlyphInfo("/Resources/#Segoe Fluent Icons", "\ue790"),
+                Score = score,
+                Action = c =>
+                {
+                    SelectedTheme = theme;
+                    _context.API.ReQuery();
+                    return false;
+                }
+            };
+        }
+    }
+}