Support Showing Search Window at Topmost

Flow.Launcher.Infrastructure/UserSettings/Settings.cs

@@ -60,16 +60,19 @@ public string Language
             get => _language;
             set
             {
-                _language = value;
-                OnPropertyChanged();
+                if (_language != value)
+                {
+                    _language = value;
+                    OnPropertyChanged();
+                }
             }
         }
         public string Theme
         {
             get => _theme;
             set
             {
-                if (value != _theme)
+                if (_theme != value)
                 {
                     _theme = value;
                     OnPropertyChanged();
@@ -297,9 +300,12 @@ public SearchPrecisionScore QuerySearchPrecision
             get => _querySearchPrecision;
             set
             {
-                _querySearchPrecision = value;
-                if (_stringMatcher != null)
-                    _stringMatcher.UserSettingSearchPrecision = value;
+                if (_querySearchPrecision != value)
+                {
+                    _querySearchPrecision = value;
+                    if (_stringMatcher != null)
+                        _stringMatcher.UserSettingSearchPrecision = value;
+                }
             }
         }
 
@@ -366,13 +372,30 @@ public bool HideNotifyIcon
             get => _hideNotifyIcon;
             set
             {
-                _hideNotifyIcon = value;
-                OnPropertyChanged();
+                if (_hideNotifyIcon != value)
+                {
+                    _hideNotifyIcon = value;
+                    OnPropertyChanged();
+                }
             }
         }
         public bool LeaveCmdOpen { get; set; }
         public bool HideWhenDeactivated { get; set; } = true;
 
+        private bool _showAtTopmost = true;
+        public bool ShowAtTopmost
+        {
+            get => _showAtTopmost;
+            set
+            {
+                if (_showAtTopmost != value)
+                {
+                    _showAtTopmost = value;
+                    OnPropertyChanged();
+                }
+            }
+        }
+
         public bool SearchQueryResultsWithDelay { get; set; }
         public int SearchDelayTime { get; set; } = 150;
 

Flow.Launcher/Languages/en.xaml

@@ -131,6 +131,8 @@
     <system:String x:Key="historyResultsForHomePage">Show History Results in Home Page</system:String>
     <system:String x:Key="historyResultsCountForHomePage">Maximum History Results Shown in Home Page</system:String>
     <system:String x:Key="homeToggleBoxToolTip">This can only be edited if plugin supports Home feature and Home Page is enabled.</system:String>
+    <system:String x:Key="showAtTopmost">Show Search Window at Topmost</system:String>
+    <system:String x:Key="showAtTopmostToolTip">Show search window above other windows</system:String>
 
     <!--  Setting Plugin  -->
     <system:String x:Key="searchplugin">Search Plugin</system:String>

Flow.Launcher/MainWindow.xaml.cs

@@ -58,7 +58,7 @@
         private bool _isArrowKeyPressed = false;
 
         // Window Sound Effects
         private MediaPlayer animationSoundWMP;
         private SoundPlayer animationSoundWPF;
 
         // Window WndProc
@@ -79,11 +79,13 @@
 
         public MainWindow()
         {
             _settings = Ioc.Default.GetRequiredService<Settings>();
             _theme = Ioc.Default.GetRequiredService<Theme>();
             _viewModel = Ioc.Default.GetRequiredService<MainViewModel>();
             DataContext = _viewModel;
 
+            Topmost = _settings.ShowAtTopmost;
+
             InitializeComponent();
             UpdatePosition();
 
@@ -108,7 +110,7 @@
         {
             var handle = Win32Helper.GetWindowHandle(this, true);
             _hwndSource = HwndSource.FromHwnd(handle);
             _hwndSource.AddHook(WndProc);
             Win32Helper.HideFromAltTab(this);
             Win32Helper.DisableControlBox(this);
         }
@@ -289,6 +291,9 @@
                             _viewModel.QueryResults();
                         }
                         break;
+                    case nameof(Settings.ShowAtTopmost):
+                        Topmost = _settings.ShowAtTopmost;
+                        break;
                 }
             };
 
@@ -333,7 +338,7 @@
         {
             try
             {
                 _hwndSource.RemoveHook(WndProc);
             }
             catch (Exception)
             {
@@ -457,7 +462,7 @@
             }
         }
 
 #pragma warning restore VSTHRD100 // Avoid async void methods
 
         #endregion
 
@@ -472,7 +477,7 @@
 
         #region Window Context Menu Event
 
 #pragma warning disable VSTHRD100 // Avoid async void methods
 
         private async void OnContextMenusForSettingsClick(object sender, RoutedEventArgs e)
         {
@@ -484,11 +489,11 @@
             App.API.OpenSettingDialog();
         }
 
 #pragma warning restore VSTHRD100 // Avoid async void methods
 
         #endregion
 
         #region Window WndProc
 
         private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
         {

Flow.Launcher/SettingPages/Views/SettingsPaneGeneral.xaml

@@ -77,6 +77,17 @@
                     OnContent="{DynamicResource enable}" />
             </cc:Card>
 
+            <cc:Card
+                Title="{DynamicResource showAtTopmost}"
+                Margin="0 14 0 0"
+                Icon="&#xE923;"
+                Sub="{DynamicResource showAtTopmostToolTip}">
+                <ui:ToggleSwitch
+                    IsOn="{Binding Settings.ShowAtTopmost}"
+                    OffContent="{DynamicResource disable}"
+                    OnContent="{DynamicResource enable}" />
+            </cc:Card>
+
             <cc:CardGroup Margin="0 14 0 0">
                 <cc:Card Title="{DynamicResource SearchWindowPosition}" Icon="&#xe7f4;">
                     <StackPanel Orientation="Horizontal">