A lot of small improvements

src/ChatPrisma/App.xaml.cs

@@ -132,10 +132,19 @@ private IHostBuilder CreateHostBuilder(string[] args) => Microsoft.Extensions.Ho
                     o.Key = "Y";
                     o.KeyModifiers = "Ctrl+Shift+Alt";
                     o.HotkeyDelayInMilliseconds = 500;
+                    o.ClipboardDelayInMilliseconds = 500;
                 })
                 .BindConfiguration("Hotkey")
                 .ValidateDataAnnotations()
                 .ValidateOnStart();
+            services.AddOptions<TextEnhancementOptions>()
+                .Configure(o =>
+                {
+                    o.TextSize = 12;
+                })
+                .BindConfiguration("TextEnhancement")
+                .ValidateDataAnnotations()
+                .ValidateOnStart();
 
             // Services
             services.AddSingleton<IKeyboardHooks, GlobalKeyInterceptorKeyboardHooks>();

src/ChatPrisma/HostedServices/PrismaHostedService.cs

@@ -20,27 +20,13 @@ public Task StopAsync(CancellationToken cancellationToken)
         return Task.CompletedTask;
     }
 
-    private bool _alreadyShowing;
-
     private async void KeyboardHooksOnCombinationPressed(object? sender, EventArgs e)
     {
-        // Only allow one text to be enhanced at a time
-        if (this._alreadyShowing)
-            return;
-
         var text = await textExtractor.GetCurrentTextAsync();
         if (text is null)
             return;
 
-        this._alreadyShowing = true;
-        try
-        {
-            var textEnhancementViewModel = viewModelFactory.CreateTextEnhancementViewModel(text);
-            await dialogService.ShowDialog(textEnhancementViewModel);
-        }
-        finally
-        {
-            this._alreadyShowing = false;
-        }
+        var textEnhancementViewModel = viewModelFactory.CreateTextEnhancementViewModel(text);
+        await dialogService.ShowDialog(textEnhancementViewModel);
     }
 }

src/ChatPrisma/Options/HotkeyOptions.cs

@@ -9,5 +9,6 @@ public class HotkeyOptions
         [Required]
         public string KeyModifiers { get; set; } = default!;
         public int HotkeyDelayInMilliseconds { get; set; }
+        public int ClipboardDelayInMilliseconds { get; set; }
     }
 }

src/ChatPrisma/Options/TextEnhancementOptions.cs

@@ -0,0 +1,6 @@
+namespace ChatPrisma.Options;
+
+public class TextEnhancementOptions
+{
+    public int TextSize { get; set; }
+}

src/ChatPrisma/Services/TextExtractor/ClipboardTextExtractor.cs

@@ -29,7 +29,8 @@ public class ClipboardTextExtractor(IOptionsMonitor<HotkeyOptions> hotkeyOptions
         Clipboard.Clear();
         SendKeys.SendWait("^c");
 
-        var selectedText = Clipboard.GetText();
+        // It can take a while until the text is in the clipboard
+        var selectedText = await this.WaitUntilClipboardTextIsAvailable();
 
         if (string.IsNullOrWhiteSpace(selectedText))
             return null;
@@ -72,4 +73,26 @@ private static bool AnyKeyPressed()
 
         return false;
     }
+
+    private async Task<string?> WaitUntilClipboardTextIsAvailable()
+    {
+        var task = Task.Delay(TimeSpan.FromMilliseconds(hotkeyOptions.CurrentValue.ClipboardDelayInMilliseconds));
+        var watch = Stopwatch.StartNew();
+
+        // Either wait until the task is completed or the user releases all keys
+        while (task.IsCompleted is false)
+        {
+            var dataObject = Clipboard.GetDataObject();
+            if (dataObject?.GetData(DataFormats.Text) is string text)
+            {
+                logger.LogInformation("Early exit from WaitUntilClipboardIsFilled because we got some text from the clipboard (after {Time} ms)", watch.Elapsed.TotalMilliseconds);
+                return text;
+            }
+
+            await Task.Delay(10);
+        }
+
+        logger.LogInformation("Sadly no text available in clipboard (after {Time} ms)", watch.Elapsed.TotalMilliseconds);
+        return null;
+    }
 }

src/ChatPrisma/Themes/ContextMenuStyles.xaml

@@ -70,7 +70,7 @@
                     </Grid>
 
                     <ControlTemplate.Triggers>
-                        <Trigger Property="IsMouseOver" Value="True">
+                        <Trigger Property="IsHighlighted" Value="True">
                             <Setter TargetName="MenuItemBorder" Property="Background">
                                 <Setter.Value>
                                     <SolidColorBrush Color="Black" Opacity="0.5" />

src/ChatPrisma/Themes/TextBoxStyles.xaml

@@ -1,11 +1,33 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
-                    xmlns:themes="clr-namespace:ChatPrisma.Themes">
+                    xmlns:themes="clr-namespace:ChatPrisma.Themes"
+                    xmlns:wpf="clr-namespace:FluentIcons.WPF;assembly=FluentIcons.WPF">
     <Style TargetType="TextBox">
         <Setter Property="Foreground" Value="White"/>
         <Setter Property="CaretBrush" Value="White"/>
         <Setter Property="Height" Value="30"/>
+        <Setter Property="ContextMenu">
+            <Setter.Value>
+                <ContextMenu>
+                    <MenuItem Command="Cut">
+                        <MenuItem.Icon>
+                            <wpf:SymbolIcon Symbol="Cut" />
+                        </MenuItem.Icon>
+                    </MenuItem>
+                    <MenuItem Command="Copy">
+                        <MenuItem.Icon>
+                            <wpf:SymbolIcon Symbol="Copy" />
+                        </MenuItem.Icon>
+                    </MenuItem>
+                    <MenuItem Command="Paste">
+                        <MenuItem.Icon>
+                            <wpf:SymbolIcon Symbol="ClipboardPaste" />
+                        </MenuItem.Icon>
+                    </MenuItem>
+                </ContextMenu>
+            </Setter.Value>
+        </Setter>
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="TextBox">

src/ChatPrisma/Views/TextEnhancement/TextEnhancementView.xaml

@@ -9,8 +9,10 @@
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              mc:Ignorable="d"
 
-             Width="400"
+             Width="600"
+
              MinHeight="200"
+             MaxHeight="800"
 
              d:DataContext="{d:DesignInstance local:TextEnhancementViewModel}"
 
@@ -24,8 +26,13 @@
         </Grid.RowDefinitions>
 
         <GroupBox Grid.Row="0" Header="Text" themes:Attached.Icon="TextEditStyle">
-            <emoji:TextBlock Text="{Binding CurrentText}"
-                             TextWrapping="Wrap"/>
+            <ScrollViewer VerticalScrollBarVisibility="Auto" x:Name="TextScrollViewer">
+                <emoji:TextBlock x:Name="TextTextBlock" 
+                                 Text="{Binding CurrentText}"
+                                 FontSize="{Binding TextSize}"
+                                 TextWrapping="Wrap" 
+                                 SizeChanged="TextTextBlock_OnSizeChanged"/>
+            </ScrollViewer>
         </GroupBox>
 
         <GroupBox Grid.Row="1" Header="Änderungen" themes:Attached.Icon="InkingTool">

src/ChatPrisma/Views/TextEnhancement/TextEnhancementView.xaml.cs

@@ -1,4 +1,7 @@
 using System.Windows;
+using System.Windows.Forms;
+using System.Windows.Interop;
+using System.Windows.Threading;
 
 namespace ChatPrisma.Views.TextEnhancement;
 
@@ -7,6 +10,24 @@ public partial class TextEnhancementView
     private void TextEnhancementView_OnLoaded(object sender, RoutedEventArgs e)
     {
         this.InstructionTextBox.Focus();
+
+        // Place window slightly to the top
+        var window = Window.GetWindow(this)!;
+        window.Dispatcher.BeginInvoke(DispatcherPriority.Render, new Action(() =>
+        {
+            var helper = new WindowInteropHelper(window);
+            var currentScreen = Screen.FromHandle(helper.Handle);
+            var currentScreenHeight = currentScreen.Bounds.Height;
+
+            // Place the window a bit moved to the top, so it is perfectly centered if we reach this.MaxHeight
+            window.Top = Math.Max((currentScreenHeight - this.MaxHeight) / 2, 0);
+        }));
+
+        // Ensure window is shown above all other windows
+        window.Activate();
+        window.Topmost = true;
+        window.Topmost = false;
+        window.Focus();
     }
 
     private void TextEnhancementView_OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
@@ -27,4 +48,10 @@ private void ViewModelOnApplyInstructionCancelled(object? sender, EventArgs e)
         // Set cursor at the end of the instruction textbox
         this.InstructionTextBox.Select(this.InstructionTextBox.Text.Length, 0);
     }
-}
+
+    private void TextTextBlock_OnSizeChanged(object sender, SizeChangedEventArgs e)
+    {
+        // Keep the ScrollViewer scrolled to the bottom while the text is generating
+        this.TextScrollViewer.ScrollToVerticalOffset(this.TextScrollViewer.ExtentHeight);
+    }
+}

src/ChatPrisma/Views/TextEnhancement/TextEnhancementViewModel.cs

@@ -1,13 +1,15 @@
 using System.Windows;
+using ChatPrisma.Options;
 using ChatPrisma.Services.ChatBot;
 using ChatPrisma.Services.Dialogs;
 using ChatPrisma.Services.TextWriter;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
+using Microsoft.Extensions.Options;
 
 namespace ChatPrisma.Views.TextEnhancement;
 
-public partial class TextEnhancementViewModel(string inputText, IClipboardTextWriter clipboardTextWriter, IChatBotService chatBotService) : ObservableObject, ICloseWindow, IConfigureWindow
+public partial class TextEnhancementViewModel(string inputText, IClipboardTextWriter clipboardTextWriter, IChatBotService chatBotService, IOptionsMonitor<TextEnhancementOptions> textEnhancementOptions) : ObservableObject, ICloseWindow, IConfigureWindow
 {
     private List<PrismaChatMessage> _allMessages = new()
     {
@@ -23,6 +25,9 @@ public partial class TextEnhancementViewModel(string inputText, IClipboardTextWr
     [ObservableProperty]
     private string _instruction = string.Empty;
 
+    [ObservableProperty]
+    private int _textSize = textEnhancementOptions.CurrentValue.TextSize;
+
     public event EventHandler? ApplyInstructionCancelled;
 
     [RelayCommand(IncludeCancelCommand = true)]

src/ChatPrisma/appsettings.json

@@ -11,6 +11,10 @@
     "Key": "Y",
     "KeyModifiers": "Ctrl+Shift+Alt",
     "HotkeyDelayInMilliseconds":  500,
+    "ClipboardDelayInMilliseconds": 500,
+  },
+  "TextEnhancement": {
+    "TextSize": 12,
   },
   "NLog": {
     "throwConfigExceptions": true,