Recover from task switcher issue with minimized windows (#4400)

Catches case where window is activated but not restored / maximized and then manually does that

Author: DavidGBrett

Flow.Launcher/PluginSettingsWindow.xaml

@@ -11,6 +11,7 @@
     ResizeMode="CanResize"
     SnapsToDevicePixels="True"
     StateChanged="Window_StateChanged"
+    Activated="Window_Activated"
     UseLayoutRounding="True"
     WindowStartupLocation="CenterScreen">
     <WindowChrome.WindowChrome>

Flow.Launcher/PluginSettingsWindow.xaml.cs

@@ -12,6 +12,7 @@ namespace Flow.Launcher;
 public partial class PluginSettingsWindow
 {
     private readonly Settings _settings;
+    private WindowState _lastNonMinimizedWindowState = WindowState.Normal;
 
     public string PluginId { get; }
 
@@ -84,14 +85,34 @@ private void OnCloseExecuted(object sender, ExecutedRoutedEventArgs e)
 
     private void OnLoaded(object sender, RoutedEventArgs e)
     {
+        if (WindowState != WindowState.Minimized)
+        {
+            _lastNonMinimizedWindowState = WindowState;
+        }
+
         RefreshMaximizeRestoreButton();
     }
 
     private void Window_StateChanged(object sender, EventArgs e)
     {
+        if (WindowState != WindowState.Minimized)
+        {
+            _lastNonMinimizedWindowState = WindowState;
+        }
+
         RefreshMaximizeRestoreButton();
     }
 
+    private void Window_Activated(object sender, EventArgs e)
+    {
+        // Band-aid fix: Rare edge case where Alt+Tab activates the window but doesn't trigger StateChanged
+        // So we need to restore/maximize it here if it's still minimized
+        if (WindowState == WindowState.Minimized)
+        {
+            WindowState = _lastNonMinimizedWindowState;
+        }
+    }
+
     private void RefreshMaximizeRestoreButton()
     {
         if (WindowState == WindowState.Maximized)

Flow.Launcher/SettingWindow.xaml

@@ -22,6 +22,7 @@
     ResizeMode="CanResize"
     SnapsToDevicePixels="True"
     StateChanged="Window_StateChanged"
+    Activated="Window_Activated"
     Top="{Binding SettingWindowTop, Mode=TwoWay}"
     UseLayoutRounding="True"
     WindowStartupLocation="Manual"

Flow.Launcher/SettingWindow.xaml.cs

@@ -101,6 +101,16 @@ private void Window_StateChanged(object sender, EventArgs e)
             _settings.SettingWindowState = WindowState;
         }
     }
+    private void Window_Activated(object sender, EventArgs e)
+    {
+           
+        // Band-aid fix: Rare edge case where Alt+Tab activates the window but doesn't trigger StateChanged
+        // So we need to restore/maximize it here if it's still minimized
+        if (WindowState == WindowState.Minimized && _settings.SettingWindowState != WindowState.Minimized)
+        {
+            WindowState = _settings.SettingWindowState;
+        }
+    }
 
     private void Window_LocationChanged(object sender, EventArgs e)
     {