added sending closing event message to settings windows

Reviewed-on: #6
Co-authored-by: Aleksandr Neychev <alexnejchev73@gmail.com>

CursorLang.Agent.Tests/EndToEndTests.cs

@@ -133,6 +133,34 @@ public sealed partial class EndToEndTests
         Assert.False(launch.Process.HasExited);
     }
 
+    /// <summary>
+    /// "Exit" in the tray menu ends the application whole: the settings window goes with
+    /// the agent instead of staying on the screen belonging to nothing.
+    /// </summary>
+    /// <remarks>
+    /// The menu itself is out of reach of a test — it is a <c>TrackPopupMenuEx</c> menu
+    /// with a modal loop of its own — so what is checked is the request the menu makes.
+    /// The settings window here is the real one, started by the agent, and it must be
+    /// listening by the time it is on the screen.
+    /// </remarks>
+    [Fact]
+    public void The_agents_exit_closes_the_settings_window()
+    {
+        using Launch launch = Launch.Start();
+        launch.WaitForSettingsWindow();
+
+        Process settings = Launch.SettingsProcesses().Single();
+        try
+        {
+            Assert.True(SettingsCloseSignal.RequestClose(), "the settings window was not listening");
+            Assert.True(settings.WaitForExit(ExitTimeout), "the settings window outlived the agent's exit");
+        }
+        finally
+        {
+            settings.Dispose();
+        }
+    }
+
     /// <summary>A started application that shuts down together with the check.</summary>
     private sealed class Launch : IDisposable
     {

CursorLang.Agent/Agent.cs

@@ -125,5 +125,12 @@ internal sealed class Agent : IDisposable
 
     private void OnOpenRequested(object? sender, EventArgs e) => SettingsLauncher.Open();
 
-    private void OnExitRequested(object? sender, EventArgs e) => _window.Quit();
+    // "Exit" means the application, not just the background half of it. A settings
+    // window left open would outlive the tray icon it was opened from, so it is asked
+    // to close first — it may be the very window the user is looking at
+    private void OnExitRequested(object? sender, EventArgs e)
+    {
+        SettingsCloseSignal.RequestClose();
+        _window.Quit();
+    }
 }

CursorLang.Core.Tests/Services/SettingsCloseSignalTests.cs

@@ -0,0 +1,115 @@
+using System.Collections.Concurrent;
+using CursorLang.Core.Services;
+using CursorLang.Tests.Shared;
+
+namespace CursorLang.Core.Tests.Services;
+
+/// <summary>
+/// The one thing the agent says to the settings window: quit with me.
+/// </summary>
+/// <remarks>
+/// The event names here are the tests' own. The application's name is fixed, and a test
+/// listening on it would answer for a settings window someone is using — or, signalling,
+/// close it.
+/// </remarks>
+public sealed class SettingsCloseSignalTests
+{
+    [Fact]
+    public void The_request_reaches_the_settings_window()
+    {
+        string suffix = UniqueSuffix();
+        var signal = new SettingsCloseSignal(suffix);
+
+        ConcurrentQueue<EventArgs> requests = new();
+        signal.CloseRequested += (_, e) => requests.Enqueue(e);
+
+        try
+        {
+            signal.Listen();
+
+            Assert.True(RequestApart(suffix), "the request found nobody listening");
+            Pump.WaitFor(() => !requests.IsEmpty, "the settings window got the request to close");
+        }
+        finally
+        {
+            signal.Dispose();
+        }
+    }
+
+    // The usual case: the user quits from the tray with no settings window on the screen
+    [Fact]
+    public void A_request_with_no_settings_window_open_passes_without_consequence()
+    {
+        Assert.False(RequestApart(UniqueSuffix()));
+    }
+
+    // The window has closed on its own, and the process is on its way out anyway
+    [Fact]
+    public void No_request_arrives_after_the_window_is_gone()
+    {
+        string suffix = UniqueSuffix();
+        var signal = new SettingsCloseSignal(suffix);
+
+        ConcurrentQueue<EventArgs> requests = new();
+        signal.CloseRequested += (_, e) => requests.Enqueue(e);
+
+        signal.Listen();
+        signal.Dispose();
+
+        RequestApart(suffix);
+        Pump.Pause(TimeSpan.FromMilliseconds(80));
+
+        Assert.Empty(requests);
+    }
+
+    [Fact]
+    public void Listening_twice_leaves_one_listener()
+    {
+        string suffix = UniqueSuffix();
+        var signal = new SettingsCloseSignal(suffix);
+
+        var requests = 0;
+        signal.CloseRequested += (_, _) => Interlocked.Increment(ref requests);
+
+        try
+        {
+            signal.Listen();
+            signal.Listen();
+
+            Assert.True(RequestApart(suffix));
+            Pump.WaitFor(() => Volatile.Read(ref requests) > 0, "the request arrived");
+            Pump.Pause(TimeSpan.FromMilliseconds(80));
+
+            Assert.Equal(1, Volatile.Read(ref requests));
+        }
+        finally
+        {
+            signal.Dispose();
+        }
+    }
+
+    [Fact]
+    public void Closing_without_listening_passes_without_consequence()
+    {
+        var signal = new SettingsCloseSignal(UniqueSuffix());
+
+        signal.Dispose();
+        signal.Dispose();
+    }
+
+    // Every test gets a namespace of kernel objects of its own
+    private static string UniqueSuffix() => "." + Guid.NewGuid().ToString("N");
+
+    /// <summary>
+    /// Asks for the close the way the agent does it — from another process, and here
+    /// from another thread, which is as foreign as a test can get.
+    /// </summary>
+    private static bool RequestApart(string suffix)
+    {
+        var heard = false;
+
+        Pump.RunApart(() => heard = SettingsCloseSignal.RequestClose(suffix));
+
+        return heard;
+    }
+}

CursorLang.Core/Services/SettingsCloseSignal.cs

@@ -0,0 +1,98 @@
+namespace CursorLang.Core.Services;
+
+/// <summary>
+/// Tells the settings window that the agent is quitting and it is to close with it.
+/// </summary>
+/// <remarks>
+/// The one thing the agent says to the settings window, and the mirror image of
+/// <see cref="SettingsSignal"/>. "Exit" in the tray menu means the application is done
+/// with, and a settings window left alone on the screen after it is a window belonging
+/// to nothing: the tray icon it was opened from is gone, and closing it would be the
+/// user's only remaining move.
+///
+/// A named event rather than a window message, because the agent has no handle to send
+/// one to: the settings window lives in a process the agent starts and deliberately
+/// does not keep hold of. The name has no <c>Global</c> prefix, so it lives in the
+/// session namespace — same reasoning as <see cref="SingleInstanceGate"/>, and the same
+/// consequence: with fast user switching each user's halves talk to their own.
+///
+/// Only the settings window creates the object; the agent opens what is already there
+/// and stays silent when there is nothing. Were it the other way round, the request
+/// would sit in an auto-reset event waiting for the next settings window to open and
+/// close it the moment it did.
+/// </remarks>
+internal sealed class SettingsCloseSignal : IDisposable
+{
+    private const string EventName = "CursorLang.CloseSettings";
+
+    private readonly string _eventName;
+
+    private EventWaitHandle? _request;
+    private RegisteredWaitHandle? _wait;
+
+    /// <summary>
+    /// Listens on the name the two halves agree on.
+    /// </summary>
+    /// <param name="nameSuffix">
+    /// A namespace of its own. Empty for the application; the tests pass one so that
+    /// they do not answer for — or worse, close — a settings window someone is using.
+    /// </param>
+    internal SettingsCloseSignal(string nameSuffix = "") => _eventName = EventName + nameSuffix;
+
+    /// <summary>The agent asks for the window to be closed.</summary>
+    /// <remarks>
+    /// Raised on a thread pool thread, wherever the wait happened to be answered — a
+    /// window obeys only its own, so the handler has to get back to it.
+    /// </remarks>
+    internal event EventHandler? CloseRequested;
+
+    /// <summary>
+    /// Asks the settings window of this session, if one is open, to close. Silence is
+    /// a normal answer: most of the time the user quits with no window on the screen.
+    /// </summary>
+    /// <returns>Whether there was anybody to hear it.</returns>
+    internal static bool RequestClose(string nameSuffix = "")
+    {
+        if (!EventWaitHandle.TryOpenExisting(EventName + nameSuffix, out EventWaitHandle? request))
+        {
+            return false;
+        }
+
+        using (request)
+        {
+            return request.Set();
+        }
+    }
+
+    /// <summary>Starts waiting for the request. Called once, by the settings window.</summary>
+    internal void Listen()
+    {
+        if (_request is not null)
+        {
+            return;
+        }
+
+        _request = new EventWaitHandle(false, EventResetMode.AutoReset, _eventName);
+
+        // As in the gate: the thread pool holds the wait, there is no reason to keep a
+        // thread of our own for a request that may never come
+        _wait = ThreadPool.RegisterWaitForSingleObject(
+            _request,
+            OnCloseSignalled,
+            state: null,
+            Timeout.Infinite,
+            executeOnlyOnce: false);
+    }
+
+    public void Dispose()
+    {
+        _wait?.Unregister(null);
+        _wait = null;
+
+        _request?.Dispose();
+        _request = null;
+    }
+
+    private void OnCloseSignalled(object? state, bool timedOut) =>
+        CloseRequested?.Invoke(this, EventArgs.Empty);
+}

CursorLang.Settings/App.xaml.cs

@@ -26,6 +26,7 @@ public partial class App : Application
 {
     private ServiceProvider? _services;
     private SingleInstanceGate? _instanceGate;
+    private SettingsCloseSignal? _closeSignal;
 
     protected override void OnStartup(StartupEventArgs e)
     {
@@ -42,6 +43,10 @@ public partial class App : Application
         _instanceGate = gate;
         _instanceGate.ActivationRequested += OnActivationRequested;
 
+        _closeSignal = new SettingsCloseSignal();
+        _closeSignal.CloseRequested += OnCloseRequested;
+        _closeSignal.Listen();
+
         var services = new ServiceCollection();
         ConfigureServices(services);
         _services = services.BuildServiceProvider();
@@ -61,6 +66,12 @@ public partial class App : Application
     {
         _services?.Dispose();
 
+        if (_closeSignal is not null)
+        {
+            _closeSignal.CloseRequested -= OnCloseRequested;
+            _closeSignal.Dispose();
+        }
+
         if (_instanceGate is not null)
         {
             _instanceGate.ActivationRequested -= OnActivationRequested;
@@ -95,6 +106,27 @@ public partial class App : Application
     private void OnActivationRequested(object? sender, EventArgs e) =>
         Dispatcher.BeginInvoke(ShowMainWindow);
 
+    // The agent is quitting. Answered on a thread pool thread, and the window is closed
+    // on its own one
+    private void OnCloseRequested(object? sender, EventArgs e) =>
+        Dispatcher.BeginInvoke(CloseMainWindow);
+
+    /// <summary>
+    /// Closes the window the way the title bar button does, so that everything hanging
+    /// off closing happens; <see cref="ShutdownMode.OnMainWindowClose"/> ends the process
+    /// after it. Without a window there is nothing to close and the process simply ends.
+    /// </summary>
+    private void CloseMainWindow()
+    {
+        if (MainWindow is { } window)
+        {
+            window.Close();
+            return;
+        }
+
+        Shutdown();
+    }
+
     private void ShowMainWindow()
     {
         if (MainWindow is not { } window)

CursorLang.Settings/Views/MainWindow.xaml

@@ -8,7 +8,7 @@
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance Type=vm:SettingsViewModel}"
         Title="{Binding Title}"
-        Width="1000" SizeToContent="Height" MaxHeight="900"
+        Width="560" SizeToContent="Height" MaxHeight="940"
         ResizeMode="CanMinimize"
         Background="{DynamicResource Theme.WindowBackground}"
         Foreground="{DynamicResource Theme.Foreground}">
@@ -59,370 +59,348 @@
         </Style>
     </Window.Resources>
 
-    <!-- The settings are laid out in two columns: this way the window fits on the
-         screen entirely and does without scrolling. Scrolling is kept for the case of
-         a large system font, with which the content is taller than the monitor after all.
-
-         The left column holds what the popup does; the right one holds the single
-         section describing how and where the popup looks -->
     <ScrollViewer VerticalScrollBarVisibility="Auto" Padding="16">
-        <Grid>
+        <StackPanel>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*" />
-                <ColumnDefinition Width="*" />
-            </Grid.ColumnDefinitions>
 
-            <StackPanel>
+            <GroupBox Header="{Binding Localization[SectionInterface]}">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="164" />
+                        <ColumnDefinition Width="*" />
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                    </Grid.RowDefinitions>
 
-                <GroupBox Header="{Binding Localization[SectionInterface]}">
+                    <TextBlock Style="{StaticResource FieldLabel}"
-                    <Grid>
+                               Text="{Binding Localization[LanguageLabel]}" />
-                        <Grid.ColumnDefinitions>
+                    <ComboBox Grid.Column="1"
-                            <ColumnDefinition Width="164" />
+                              ItemsSource="{Binding Localization.AvailableLanguages}"
-                            <ColumnDefinition Width="*" />
+                              DisplayMemberPath="DisplayName"
-                        </Grid.ColumnDefinitions>
+                              SelectedValuePath="Code"
-                        <Grid.RowDefinitions>
+                              SelectedValue="{Binding Settings.Language}" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                        </Grid.RowDefinitions>
 
-                        <TextBlock Style="{StaticResource FieldLabel}"
+                    <TextBlock Grid.Row="1" Margin="0,12,12,0"
-                                   Text="{Binding Localization[LanguageLabel]}" />
+                               Style="{StaticResource FieldLabel}"
-                        <ComboBox Grid.Column="1"
+                               Text="{Binding Localization[ThemeLabel]}" />
-                                  ItemsSource="{Binding Localization.AvailableLanguages}"
+                    <ComboBox Grid.Row="1" Grid.Column="1" Margin="0,12,0,0"
-                                  DisplayMemberPath="DisplayName"
+                              ItemsSource="{Binding Themes}"
-                                  SelectedValuePath="Code"
+                              ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                  SelectedValue="{Binding Settings.Language}" />
+                              SelectedValuePath="Value"
+                              SelectedValue="{Binding Settings.Theme}" />
+                </Grid>
+            </GroupBox>
 
-                        <TextBlock Grid.Row="1" Margin="0,12,12,0"
+            <GroupBox Header="{Binding Localization[SectionPopup]}">
-                                   Style="{StaticResource FieldLabel}"
+                <Grid>
-                                   Text="{Binding Localization[ThemeLabel]}" />
+                    <Grid.ColumnDefinitions>
-                        <ComboBox Grid.Row="1" Grid.Column="1" Margin="0,12,0,0"
+                        <ColumnDefinition Width="164" />
-                                  ItemsSource="{Binding Themes}"
+                        <ColumnDefinition Width="*" />
-                                  ItemTemplate="{StaticResource EnumOptionTemplate}"
+                        <ColumnDefinition Width="Auto" />
-                                  SelectedValuePath="Value"
+                    </Grid.ColumnDefinitions>
-                                  SelectedValue="{Binding Settings.Theme}" />
+                    <Grid.RowDefinitions>
-                    </Grid>
+                        <RowDefinition Height="Auto" />
-                </GroupBox>
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                    </Grid.RowDefinitions>
 
-                <GroupBox Header="{Binding Localization[SectionBehavior]}">
+                    <TextBlock Style="{StaticResource FieldLabel}">
-                    <Grid>
+                        <Run Text="{Binding Localization[PlacementModeLabel], Mode=OneWay}" />
-                        <Grid.ColumnDefinitions>
+                        <InlineUIContainer BaselineAlignment="Baseline">
-                            <ColumnDefinition Width="164" />
+                            <TextBlock Text="{Binding Localization[MoreInfoLink]}"
-                            <ColumnDefinition Width="*" />
+                                       Foreground="{DynamicResource Theme.Accent}"
-                            <ColumnDefinition Width="Auto" />
+                                       TextDecorations="Underline"
-                        </Grid.ColumnDefinitions>
+                                       Cursor="Help"
-                        <Grid.RowDefinitions>
+                                       ToolTipService.InitialShowDelay="200"
-                            <RowDefinition Height="Auto" />
+                                       ToolTipService.ShowDuration="60000">
-                            <RowDefinition Height="Auto" />
+                                <TextBlock.ToolTip>
-                            <RowDefinition Height="Auto" />
+                                    <ToolTip>
-                            <RowDefinition Height="Auto" />
+                                        <TextBlock TextWrapping="Wrap" MaxWidth="320"
-                            <RowDefinition Height="Auto" />
+                                                   Text="{Binding Localization[PopupLookPerModeHint]}" />
-                            <RowDefinition Height="Auto" />
+                                    </ToolTip>
-                        </Grid.RowDefinitions>
+                                </TextBlock.ToolTip>
+                            </TextBlock>
+                        </InlineUIContainer>
+                    </TextBlock>
+                    <ComboBox Grid.Column="1" Grid.ColumnSpan="2"
+                              ItemsSource="{Binding PlacementModes}"
+                              ItemTemplate="{StaticResource EnumOptionTemplate}"
+                              SelectedValuePath="Value"
+                              SelectedValue="{Binding Settings.PlacementMode}" />
 
-                        <TextBlock Style="{StaticResource FieldLabel}"
+                    <!-- The "at cursor" mode: a side and an offset of its own -->
-                                   Text="{Binding Localization[DurationLabel]}" />
+                    <TextBlock Grid.Row="1" Margin="0,12,12,0"
-                        <Slider Grid.Column="1" Minimum="200" Maximum="5000" TickFrequency="100"
+                               Style="{StaticResource FieldLabel}"
-                                Value="{Binding Settings.DurationMilliseconds}" />
+                               Text="{Binding Localization[CursorCornerLabel]}"
-                        <StackPanel Grid.Column="2" Orientation="Horizontal" VerticalAlignment="Center">
+                               Visibility="{Binding Settings.PlacementMode,
-                            <TextBlock Style="{StaticResource FieldValue}"
+                                   Converter={StaticResource EnumToVisibility},
-                                       Text="{Binding Settings.DurationMilliseconds, StringFormat={}{0:F0}}" />
+                                   ConverterParameter=AtCursor}" />
-                            <TextBlock Margin="4,0,0,0"
+                    <ComboBox Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                       Foreground="{DynamicResource Theme.SecondaryForeground}"
+                              ItemsSource="{Binding AnchorSides}"
-                                       Text="{Binding Localization[MillisecondsSuffix]}" />
+                              ItemTemplate="{StaticResource EnumOptionTemplate}"
-                        </StackPanel>
+                              SelectedValuePath="Value"
+                              SelectedValue="{Binding Settings.AtCursor.Side}"
+                              Visibility="{Binding Settings.PlacementMode,
+                                  Converter={StaticResource EnumToVisibility},
+                                  ConverterParameter=AtCursor}" />
 
-                        <TextBlock Grid.Row="1" Margin="0,12,12,0"
+                    <TextBlock Grid.Row="2" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
+                               Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[CapsLockLabel]}" />
+                               Text="{Binding Localization[CursorOffsetLabel]}"
-                        <CheckBox Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
+                               Visibility="{Binding Settings.PlacementMode,
-                                  IsChecked="{Binding Settings.UseCapsLockHotkey}"
+                                   Converter={StaticResource EnumToVisibility},
-                                  Content="{Binding Localization[CapsLockHotkeyCheck]}" />
+                                   ConverterParameter=AtCursor}" />
+                    <Slider Grid.Row="2" Grid.Column="1" Margin="0,12,0,0"
+                            Minimum="0" Maximum="80" TickFrequency="1"
+                            Value="{Binding Settings.AtCursor.Offset}"
+                            Visibility="{Binding Settings.PlacementMode,
+                                Converter={StaticResource EnumToVisibility},
+                                ConverterParameter=AtCursor}" />
+                    <TextBlock Grid.Row="2" Grid.Column="2" Margin="12,12,0,0"
+                               Style="{StaticResource FieldValue}"
+                               Text="{Binding Settings.AtCursor.Offset, StringFormat={}{0:F0}}"
+                               Visibility="{Binding Settings.PlacementMode,
+                                   Converter={StaticResource EnumToVisibility},
+                                   ConverterParameter=AtCursor}" />
 
-                        <TextBlock Grid.Row="2" Margin="0,12,12,0"
+                    <!-- The "at caret" mode: a side and an offset of its own -->
-                                   Style="{StaticResource FieldLabel}"
+                    <TextBlock Grid.Row="3" Margin="0,12,12,0"
-                                   Text="{Binding Localization[CapsLockHoldLabel]}" />
+                               Style="{StaticResource FieldLabel}"
-                        <Slider Grid.Row="2" Grid.Column="1" Margin="0,12,0,0"
+                               Text="{Binding Localization[CursorCornerLabel]}"
-                                Minimum="150" Maximum="1500" TickFrequency="50"
+                               Visibility="{Binding Settings.PlacementMode,
-                                Value="{Binding Settings.CapsLockHoldMilliseconds}"
+                                   Converter={StaticResource EnumToVisibility},
-                                IsEnabled="{Binding Settings.UseCapsLockHotkey}" />
+                                   ConverterParameter=AtCaret}" />
-                        <StackPanel Grid.Row="2" Grid.Column="2" Margin="0,12,0,0"
+                    <ComboBox Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                    Orientation="Horizontal" VerticalAlignment="Center">
+                              ItemsSource="{Binding CaretSides}"
-                            <TextBlock Style="{StaticResource FieldValue}"
+                              ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                       Text="{Binding Settings.CapsLockHoldMilliseconds, StringFormat={}{0:F0}}" />
+                              SelectedValuePath="Value"
-                            <TextBlock Margin="4,0,0,0"
+                              SelectedValue="{Binding Settings.AtCaret.Side}"
-                                       Foreground="{DynamicResource Theme.SecondaryForeground}"
+                              Visibility="{Binding Settings.PlacementMode,
-                                       Text="{Binding Localization[MillisecondsSuffix]}" />
+                                  Converter={StaticResource EnumToVisibility},
-                        </StackPanel>
+                                  ConverterParameter=AtCaret}" />
 
-                        <TextBlock Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBlock Grid.Row="4" Margin="0,12,12,0"
-                                   Margin="0,6,0,0" TextWrapping="Wrap"
+                               Style="{StaticResource FieldLabel}"
-                                   Foreground="{DynamicResource Theme.SecondaryForeground}">
+                               Text="{Binding Localization[CursorOffsetLabel]}"
-                            <Run Text="{Binding Localization[CapsLockHoldHint], Mode=OneWay}" />
+                               Visibility="{Binding Settings.PlacementMode,
-                            <InlineUIContainer BaselineAlignment="Baseline">
+                                   Converter={StaticResource EnumToVisibility},
-                                <!-- The elevation caveat lives in the tooltip to keep the section compact -->
+                                   ConverterParameter=AtCaret}" />
-                                <TextBlock Text="{Binding Localization[MoreInfoLink]}"
+                    <Slider Grid.Row="4" Grid.Column="1" Margin="0,12,0,0"
-                                           Foreground="{DynamicResource Theme.Accent}"
+                            Minimum="0" Maximum="80" TickFrequency="1"
-                                           TextDecorations="Underline"
+                            Value="{Binding Settings.AtCaret.Offset}"
-                                           Cursor="Help"
+                            Visibility="{Binding Settings.PlacementMode,
-                                           ToolTipService.InitialShowDelay="200"
+                                Converter={StaticResource EnumToVisibility},
-                                           ToolTipService.ShowDuration="60000"
+                                ConverterParameter=AtCaret}" />
-                                           Visibility="{Binding Settings.UseCapsLockHotkey, Converter={StaticResource BooleanToVisibility}}">
+                    <TextBlock Grid.Row="4" Grid.Column="2" Margin="12,12,0,0"
-                                    <TextBlock.ToolTip>
+                               Style="{StaticResource FieldValue}"
-                                        <ToolTip>
+                               Text="{Binding Settings.AtCaret.Offset, StringFormat={}{0:F0}}"
-                                            <TextBlock TextWrapping="Wrap"
+                               Visibility="{Binding Settings.PlacementMode,
-                                                       Text="{Binding Localization[CapsLockElevationHint]}" />
+                                   Converter={StaticResource EnumToVisibility},
-                                        </ToolTip>
+                                   ConverterParameter=AtCaret}" />
-                                    </TextBlock.ToolTip>
-                                </TextBlock>
-                            </InlineUIContainer>
-                        </TextBlock>
 
-                        <TextBlock Grid.Row="4" Margin="0,12,12,0"
+                    <!-- The "fixed point" mode -->
-                                   Style="{StaticResource FieldLabel}"
+                    <TextBlock Grid.Row="5" Margin="0,12,12,0"
-                                   Visibility="{Binding IsStartupAvailable, Converter={StaticResource BooleanToVisibility}}"
+                               Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[StartupLabel]}" />
+                               Text="{Binding Localization[ScreenPositionLabel]}"
-                        <CheckBox Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
+                               Visibility="{Binding Settings.PlacementMode,
-                                  Visibility="{Binding IsStartupAvailable, Converter={StaticResource BooleanToVisibility}}"
+                                   Converter={StaticResource EnumToVisibility},
-                                  IsEnabled="{Binding CanChangeStartup}"
+                                   ConverterParameter=FixedPoint}" />
-                                  IsChecked="{Binding RunAtStartup}"
+                    <ComboBox Grid.Row="5" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  Content="{Binding Localization[StartupCheck]}" />
+                              ItemsSource="{Binding ScreenPositions}"
+                              ItemTemplate="{StaticResource EnumOptionTemplate}"
+                              SelectedValuePath="Value"
+                              SelectedValue="{Binding Settings.FixedPoint.Position}"
+                              Visibility="{Binding Settings.PlacementMode,
+                                  Converter={StaticResource EnumToVisibility},
+                                  ConverterParameter=FixedPoint}" />
 
-                        <TextBlock Grid.Row="5" Grid.Column="1" Grid.ColumnSpan="2"
+                    <TextBlock Grid.Row="6" Margin="0,12,12,0"
-                                   Margin="0,6,0,0" TextWrapping="Wrap"
+                               Style="{StaticResource FieldLabel}"
-                                   Foreground="{DynamicResource Theme.SecondaryForeground}"
+                               Text="{Binding Localization[ScreenMarginLabel]}"
-                                   Visibility="{Binding IsStartupLocked, Converter={StaticResource BooleanToVisibility}}"
+                               IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
-                                   Text="{Binding Localization[StartupLockedHint]}" />
+                               Visibility="{Binding Settings.PlacementMode,
-                    </Grid>
+                                   Converter={StaticResource EnumToVisibility},
-                </GroupBox>
+                                   ConverterParameter=FixedPoint}" />
+                    <Slider Grid.Row="6" Grid.Column="1" Margin="0,12,0,0"
+                            Minimum="0" Maximum="200" TickFrequency="1"
+                            Value="{Binding Settings.FixedPoint.Offset}"
+                            IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
+                            Visibility="{Binding Settings.PlacementMode,
+                                Converter={StaticResource EnumToVisibility},
+                                ConverterParameter=FixedPoint}" />
+                    <TextBlock Grid.Row="6" Grid.Column="2" Margin="12,12,0,0"
+                               Style="{StaticResource FieldValue}"
+                               Text="{Binding Settings.FixedPoint.Offset, StringFormat={}{0:F0}}"
+                               IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
+                               Visibility="{Binding Settings.PlacementMode,
+                                   Converter={StaticResource EnumToVisibility},
+                                   ConverterParameter=FixedPoint}" />
 
-            </StackPanel>
+                    <Border Grid.Row="7" Grid.ColumnSpan="3"
+                            Margin="0,16,0,0" Height="1"
+                            Background="{DynamicResource Theme.ControlBorder}" />
 
-            <StackPanel Grid.Column="1" Margin="16,0,0,0">
+                    <TextBlock Grid.Row="8" Margin="0,12,12,0"
+                               Style="{StaticResource FieldLabel}"
+                               Text="{Binding Localization[FontSizeLabel]}" />
+                    <Slider Grid.Row="8" Grid.Column="1" Margin="0,12,0,0"
+                            Minimum="10" Maximum="72" TickFrequency="1"
+                            Value="{Binding Settings.Current.FontSize}" />
+                    <TextBlock Grid.Row="8" Grid.Column="2" Margin="12,12,0,0"
+                               Style="{StaticResource FieldValue}"
+                               Text="{Binding Settings.Current.FontSize, StringFormat={}{0:F0}}" />
 
-                <!-- Where the popup appears and how it looks are one question for the
+                    <TextBlock Grid.Row="9" Margin="0,12,12,0"
-                     user, so both live in a single section: the rule is picked at the
+                               Style="{StaticResource FieldLabel}"
-                     top and its result is seen in the preview at the bottom -->
+                               Text="{Binding Localization[OpacityLabel]}" />
-                <GroupBox Header="{Binding Localization[SectionPopup]}">
+                    <Slider Grid.Row="9" Grid.Column="1" Margin="0,12,0,0"
-                    <Grid>
+                            Minimum="0.1" Maximum="1" TickFrequency="0.05"
-                        <Grid.ColumnDefinitions>
+                            Value="{Binding Settings.Current.Opacity}" />
-                            <ColumnDefinition Width="164" />
+                    <TextBlock Grid.Row="9" Grid.Column="2" Margin="12,12,0,0"
-                            <ColumnDefinition Width="*" />
+                               Style="{StaticResource FieldValue}"
-                            <ColumnDefinition Width="Auto" />
+                               Text="{Binding Settings.Current.Opacity, StringFormat={}{0:P0}}" />
-                        </Grid.ColumnDefinitions>
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" />
-                        </Grid.RowDefinitions>
 
-                        <TextBlock Style="{StaticResource FieldLabel}">
+                    <TextBlock Grid.Row="10" Margin="0,12,12,0"
-                            <Run Text="{Binding Localization[PlacementModeLabel], Mode=OneWay}" />
+                               Style="{StaticResource FieldLabel}"
-                            <InlineUIContainer BaselineAlignment="Baseline">
+                               Text="{Binding Localization[BackgroundColorLabel]}" />
-                                <TextBlock Text="{Binding Localization[MoreInfoLink]}"
+                    <ComboBox Grid.Row="10" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                           Foreground="{DynamicResource Theme.Accent}"
+                              ItemsSource="{Binding BackgroundPalette}"
-                                           TextDecorations="Underline"
+                              ItemTemplate="{StaticResource ColorSwatchTemplate}"
-                                           Cursor="Help"
+                              SelectedItem="{Binding Settings.Current.BackgroundColor}" />
-                                           ToolTipService.InitialShowDelay="200"
-                                           ToolTipService.ShowDuration="60000">
-                                    <TextBlock.ToolTip>
-                                        <ToolTip>
-                                            <TextBlock TextWrapping="Wrap" MaxWidth="320"
-                                                       Text="{Binding Localization[PopupLookPerModeHint]}" />
-                                        </ToolTip>
-                                    </TextBlock.ToolTip>
-                                </TextBlock>
-                            </InlineUIContainer>
-                        </TextBlock>
-                        <ComboBox Grid.Column="1" Grid.ColumnSpan="2"
-                                  ItemsSource="{Binding PlacementModes}"
-                                  ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                  SelectedValuePath="Value"
-                                  SelectedValue="{Binding Settings.PlacementMode}" />
 
-                        <!-- The "at cursor" mode: a side and an offset of its own -->
+                    <TextBlock Grid.Row="11" Margin="0,12,12,0"
-                        <TextBlock Grid.Row="1" Margin="0,12,12,0"
+                               Style="{StaticResource FieldLabel}"
-                                   Style="{StaticResource FieldLabel}"
+                               Text="{Binding Localization[TextColorLabel]}" />
-                                   Text="{Binding Localization[CursorCornerLabel]}"
+                    <ComboBox Grid.Row="11" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                   Visibility="{Binding Settings.PlacementMode,
+                              ItemsSource="{Binding TextPalette}"
-                                       Converter={StaticResource EnumToVisibility},
+                              ItemTemplate="{StaticResource ColorSwatchTemplate}"
-                                       ConverterParameter=AtCursor}" />
+                              SelectedItem="{Binding Settings.Current.ForegroundColor}" />
-                        <ComboBox Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  ItemsSource="{Binding AnchorSides}"
-                                  ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                  SelectedValuePath="Value"
-                                  SelectedValue="{Binding Settings.AtCursor.Side}"
-                                  Visibility="{Binding Settings.PlacementMode,
-                                      Converter={StaticResource EnumToVisibility},
-                                      ConverterParameter=AtCursor}" />
 
-                        <TextBlock Grid.Row="2" Margin="0,12,12,0"
+                    <TextBlock Grid.Row="12" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
+                               Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[CursorOffsetLabel]}"
+                               Text="{Binding Localization[PreviewLabel]}" />
-                                   Visibility="{Binding Settings.PlacementMode,
+                    <Border Grid.Row="12" Grid.Column="1" Grid.ColumnSpan="2"
-                                       Converter={StaticResource EnumToVisibility},
+                            Margin="0,12,0,0" Padding="16"
-                                       ConverterParameter=AtCursor}" />
+                            Height="152" ClipToBounds="True"
-                        <Slider Grid.Row="2" Grid.Column="1" Margin="0,12,0,0"
+                            Background="{DynamicResource Theme.SurfaceStrong}" CornerRadius="4"
-                                Minimum="0" Maximum="80" TickFrequency="1"
+                            HorizontalAlignment="Stretch">
-                                Value="{Binding Settings.AtCursor.Offset}"
+                        <Border CornerRadius="4" Padding="10,4"
-                                Visibility="{Binding Settings.PlacementMode,
+                                HorizontalAlignment="Center" VerticalAlignment="Center"
-                                    Converter={StaticResource EnumToVisibility},
+                                Opacity="{Binding Settings.Current.Opacity}"
-                                    ConverterParameter=AtCursor}" />
+                                Background="{Binding Settings.Current.BackgroundColor,
-                        <TextBlock Grid.Row="2" Grid.Column="2" Margin="12,12,0,0"
+                                    Converter={StaticResource ColorToBrush}}">
-                                   Style="{StaticResource FieldValue}"
+                            <TextBlock Text="RU" FontWeight="SemiBold"
-                                   Text="{Binding Settings.AtCursor.Offset, StringFormat={}{0:F0}}"
+                                       FontSize="{Binding Settings.Current.FontSize}"
-                                   Visibility="{Binding Settings.PlacementMode,
+                                       Foreground="{Binding Settings.Current.ForegroundColor,
-                                       Converter={StaticResource EnumToVisibility},
+                                           Converter={StaticResource ColorToBrush}}" />
-                                       ConverterParameter=AtCursor}" />
-
-                        <!-- The "at caret" mode: a side and an offset of its own -->
-                        <TextBlock Grid.Row="3" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[CursorCornerLabel]}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=AtCaret}" />
-                        <ComboBox Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  ItemsSource="{Binding CaretSides}"
-                                  ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                  SelectedValuePath="Value"
-                                  SelectedValue="{Binding Settings.AtCaret.Side}"
-                                  Visibility="{Binding Settings.PlacementMode,
-                                      Converter={StaticResource EnumToVisibility},
-                                      ConverterParameter=AtCaret}" />
-
-                        <TextBlock Grid.Row="4" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[CursorOffsetLabel]}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=AtCaret}" />
-                        <Slider Grid.Row="4" Grid.Column="1" Margin="0,12,0,0"
-                                Minimum="0" Maximum="80" TickFrequency="1"
-                                Value="{Binding Settings.AtCaret.Offset}"
-                                Visibility="{Binding Settings.PlacementMode,
-                                    Converter={StaticResource EnumToVisibility},
-                                    ConverterParameter=AtCaret}" />
-                        <TextBlock Grid.Row="4" Grid.Column="2" Margin="12,12,0,0"
-                                   Style="{StaticResource FieldValue}"
-                                   Text="{Binding Settings.AtCaret.Offset, StringFormat={}{0:F0}}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=AtCaret}" />
-
-                        <!-- The "fixed point" mode -->
-                        <TextBlock Grid.Row="5" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[ScreenPositionLabel]}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=FixedPoint}" />
-                        <ComboBox Grid.Row="5" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  ItemsSource="{Binding ScreenPositions}"
-                                  ItemTemplate="{StaticResource EnumOptionTemplate}"
-                                  SelectedValuePath="Value"
-                                  SelectedValue="{Binding Settings.FixedPoint.Position}"
-                                  Visibility="{Binding Settings.PlacementMode,
-                                      Converter={StaticResource EnumToVisibility},
-                                      ConverterParameter=FixedPoint}" />
-
-                        <TextBlock Grid.Row="6" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[ScreenMarginLabel]}"
-                                   IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=FixedPoint}" />
-                        <Slider Grid.Row="6" Grid.Column="1" Margin="0,12,0,0"
-                                Minimum="0" Maximum="200" TickFrequency="1"
-                                Value="{Binding Settings.FixedPoint.Offset}"
-                                IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
-                                Visibility="{Binding Settings.PlacementMode,
-                                    Converter={StaticResource EnumToVisibility},
-                                    ConverterParameter=FixedPoint}" />
-                        <TextBlock Grid.Row="6" Grid.Column="2" Margin="12,12,0,0"
-                                   Style="{StaticResource FieldValue}"
-                                   Text="{Binding Settings.FixedPoint.Offset, StringFormat={}{0:F0}}"
-                                   IsEnabled="{Binding Settings.FixedPoint.IsAtAnEdge}"
-                                   Visibility="{Binding Settings.PlacementMode,
-                                       Converter={StaticResource EnumToVisibility},
-                                       ConverterParameter=FixedPoint}" />
-
-                        <!-- A hairline between the two halves of the section: the
-                             placement above, the look of the popup below -->
-                        <Border Grid.Row="7" Grid.ColumnSpan="3"
-                                Margin="0,16,0,0" Height="1"
-                                Background="{DynamicResource Theme.ControlBorder}" />
-
-                        <TextBlock Grid.Row="8" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[FontSizeLabel]}" />
-                        <Slider Grid.Row="8" Grid.Column="1" Margin="0,12,0,0"
-                                Minimum="10" Maximum="72" TickFrequency="1"
-                                Value="{Binding Settings.Current.FontSize}" />
-                        <TextBlock Grid.Row="8" Grid.Column="2" Margin="12,12,0,0"
-                                   Style="{StaticResource FieldValue}"
-                                   Text="{Binding Settings.Current.FontSize, StringFormat={}{0:F0}}" />
-
-                        <TextBlock Grid.Row="9" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[OpacityLabel]}" />
-                        <Slider Grid.Row="9" Grid.Column="1" Margin="0,12,0,0"
-                                Minimum="0.1" Maximum="1" TickFrequency="0.05"
-                                Value="{Binding Settings.Current.Opacity}" />
-                        <TextBlock Grid.Row="9" Grid.Column="2" Margin="12,12,0,0"
-                                   Style="{StaticResource FieldValue}"
-                                   Text="{Binding Settings.Current.Opacity, StringFormat={}{0:P0}}" />
-
-                        <TextBlock Grid.Row="10" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[BackgroundColorLabel]}" />
-                        <ComboBox Grid.Row="10" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  ItemsSource="{Binding BackgroundPalette}"
-                                  ItemTemplate="{StaticResource ColorSwatchTemplate}"
-                                  SelectedItem="{Binding Settings.Current.BackgroundColor}" />
-
-                        <TextBlock Grid.Row="11" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[TextColorLabel]}" />
-                        <ComboBox Grid.Row="11" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
-                                  ItemsSource="{Binding TextPalette}"
-                                  ItemTemplate="{StaticResource ColorSwatchTemplate}"
-                                  SelectedItem="{Binding Settings.Current.ForegroundColor}" />
-
-                        <TextBlock Grid.Row="12" Margin="0,12,12,0"
-                                   Style="{StaticResource FieldLabel}"
-                                   Text="{Binding Localization[PreviewLabel]}" />
-                        <Border Grid.Row="12" Grid.Column="1" Grid.ColumnSpan="2"
-                                Margin="0,12,0,0" Padding="16"
-                                Height="152" ClipToBounds="True"
-                                Background="{DynamicResource Theme.SurfaceStrong}" CornerRadius="4"
-                                HorizontalAlignment="Stretch">
-                            <Border CornerRadius="4" Padding="10,4"
-                                    HorizontalAlignment="Center" VerticalAlignment="Center"
-                                    Opacity="{Binding Settings.Current.Opacity}"
-                                    Background="{Binding Settings.Current.BackgroundColor,
-                                        Converter={StaticResource ColorToBrush}}">
-                                <TextBlock Text="RU" FontWeight="SemiBold"
-                                           FontSize="{Binding Settings.Current.FontSize}"
-                                           Foreground="{Binding Settings.Current.ForegroundColor,
-                                               Converter={StaticResource ColorToBrush}}" />
-                            </Border>
                         </Border>
-                    </Grid>
+                    </Border>
-                </GroupBox>
+                </Grid>
+            </GroupBox>
 
-            </StackPanel>
+            <GroupBox Header="{Binding Localization[SectionBehavior]}">
-        </Grid>
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="164" />
+                        <ColumnDefinition Width="*" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                        <RowDefinition Height="Auto" />
+                    </Grid.RowDefinitions>
+
+                    <TextBlock Style="{StaticResource FieldLabel}"
+                               Text="{Binding Localization[DurationLabel]}" />
+                    <Slider Grid.Column="1" Minimum="200" Maximum="5000" TickFrequency="100"
+                            Value="{Binding Settings.DurationMilliseconds}" />
+                    <StackPanel Grid.Column="2" Orientation="Horizontal" VerticalAlignment="Center">
+                        <TextBlock Style="{StaticResource FieldValue}"
+                                   Text="{Binding Settings.DurationMilliseconds, StringFormat={}{0:F0}}" />
+                        <TextBlock Margin="4,0,0,0"
+                                   Foreground="{DynamicResource Theme.SecondaryForeground}"
+                                   Text="{Binding Localization[MillisecondsSuffix]}" />
+                    </StackPanel>
+
+                    <TextBlock Grid.Row="1" Margin="0,12,12,0"
+                               Style="{StaticResource FieldLabel}"
+                               Text="{Binding Localization[CapsLockLabel]}" />
+                    <CheckBox Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
+                              IsChecked="{Binding Settings.UseCapsLockHotkey}"
+                              Content="{Binding Localization[CapsLockHotkeyCheck]}" />
+
+                    <TextBlock Grid.Row="2" Margin="0,12,12,0"
+                               Style="{StaticResource FieldLabel}"
+                               Text="{Binding Localization[CapsLockHoldLabel]}" />
+                    <Slider Grid.Row="2" Grid.Column="1" Margin="0,12,0,0"
+                            Minimum="150" Maximum="1500" TickFrequency="50"
+                            Value="{Binding Settings.CapsLockHoldMilliseconds}"
+                            IsEnabled="{Binding Settings.UseCapsLockHotkey}" />
+                    <StackPanel Grid.Row="2" Grid.Column="2" Margin="0,12,0,0"
+                                Orientation="Horizontal" VerticalAlignment="Center">
+                        <TextBlock Style="{StaticResource FieldValue}"
+                                   Text="{Binding Settings.CapsLockHoldMilliseconds, StringFormat={}{0:F0}}" />
+                        <TextBlock Margin="4,0,0,0"
+                                   Foreground="{DynamicResource Theme.SecondaryForeground}"
+                                   Text="{Binding Localization[MillisecondsSuffix]}" />
+                    </StackPanel>
+
+                    <TextBlock Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="2"
+                               Margin="0,6,0,0" TextWrapping="Wrap"
+                               Foreground="{DynamicResource Theme.SecondaryForeground}">
+                        <Run Text="{Binding Localization[CapsLockHoldHint], Mode=OneWay}" />
+                        <InlineUIContainer BaselineAlignment="Baseline">
+                            <!-- The elevation caveat lives in the tooltip to keep the section compact -->
+                            <TextBlock Text="{Binding Localization[MoreInfoLink]}"
+                                       Foreground="{DynamicResource Theme.Accent}"
+                                       TextDecorations="Underline"
+                                       Cursor="Help"
+                                       ToolTipService.InitialShowDelay="200"
+                                       ToolTipService.ShowDuration="60000"
+                                       Visibility="{Binding Settings.UseCapsLockHotkey, Converter={StaticResource BooleanToVisibility}}">
+                                <TextBlock.ToolTip>
+                                    <ToolTip>
+                                        <TextBlock TextWrapping="Wrap"
+                                                   Text="{Binding Localization[CapsLockElevationHint]}" />
+                                    </ToolTip>
+                                </TextBlock.ToolTip>
+                            </TextBlock>
+                        </InlineUIContainer>
+                    </TextBlock>
+
+                    <TextBlock Grid.Row="4" Margin="0,12,12,0"
+                               Style="{StaticResource FieldLabel}"
+                               Visibility="{Binding IsStartupAvailable, Converter={StaticResource BooleanToVisibility}}"
+                               Text="{Binding Localization[StartupLabel]}" />
+                    <CheckBox Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="2" Margin="0,12,0,0"
+                              Visibility="{Binding IsStartupAvailable, Converter={StaticResource BooleanToVisibility}}"
+                              IsEnabled="{Binding CanChangeStartup}"
+                              IsChecked="{Binding RunAtStartup}"
+                              Content="{Binding Localization[StartupCheck]}" />
+
+                    <TextBlock Grid.Row="5" Grid.Column="1" Grid.ColumnSpan="2"
+                               Margin="0,6,0,0" TextWrapping="Wrap"
+                               Foreground="{DynamicResource Theme.SecondaryForeground}"
+                               Visibility="{Binding IsStartupLocked, Converter={StaticResource BooleanToVisibility}}"
+                               Text="{Binding Localization[StartupLockedHint]}" />
+                </Grid>
+            </GroupBox>
+
+        </StackPanel>
     </ScrollViewer>
 </Window>

README.RU.md

@@ -84,20 +84,28 @@ MSIX всегда выполняются в контексте вошедшег
 раскладкой. Без UI, и так должно остаться: всё, что попадёт туда, попадёт и
 в фоновый процесс.
 
-Связь между ними — только `settings.json`. Окно пишет его целиком, во временный
+Всё, что окно сообщает агенту, идёт только через `settings.json`. Окно пишет его
-файл, который одним движением встаёт на место, и посылает агенту
+целиком, во временный файл, который одним движением встаёт на место, и посылает
-зарегистрированное оконное сообщение, по которому тот перечитывает файл.
+агенту зарегистрированное оконное сообщение, по которому тот перечитывает файл.
 Сообщение не несёт данных: пересылка самих изменений лишила бы файл роли
 единственного источника правды. Работающий агент необязателен — без него окно
 работает так же. За файлом никто не следит: писатель у него один, и он сам
 сообщает о записи.
 
+В обратную сторону агент говорит одно слово, и то последнее: пункт «Выход» в меню
+трея просит открытое окно настроек закрыться, прежде чем агент уйдёт, — чтобы на
+экране не осталось окна, которому больше ничего не принадлежит. Просьба идёт
+именованным событием сессии, а не оконным сообщением: агент запускает этот процесс
+и намеренно не держит на него ссылки. Чаще всего слушать её некому, и это
+нормальный ответ.
+
 ## Трей
 
 Окно настроек — гость на экране, а не само приложение: оно показывается после
 установки и всякий раз, когда его просят иконка или её меню. Обе кнопки в
 заголовке окна означают ровно то, что написано: окно закрывается, а его процесс
-завершается. Выход из самого приложения — пункт «Выход» в меню трея.
+завершается. Выход из самого приложения — пункт «Выход» в меню трея, и открытое
+окно настроек он закрывает вместе с агентом.
 
 Меню иконки системное, его рисует Windows. Надписи по-прежнему следуют языку,
 выбранному в настройках, а тема до меню больше не дотягивается: меню на WPF

README.md

@@ -81,19 +81,26 @@ the next time the window is asked for.
 the layout tracking. No UI, and it must stay that way — whatever lands there lands
 in the background process.
 
-The connection between the two is `settings.json` and nothing else. The window
+Everything the window has to say to the agent goes through `settings.json` and
-writes it — whole, into a temporary file moved into place in one step — and then
+nothing else. The window writes it — whole, into a temporary file moved into place in one step — and then
 posts a registered window message to the agent, which re-reads. The message carries
 no data: sending the changed values along would make the file stop being the only
 source of truth. An agent that is not running is a normal case — the window works the
 same. Nobody watches the file: it has one writer, and that writer speaks up.
 
+The one word in the other direction is the last one: Exit in the tray menu asks an
+open settings window to close before the agent goes, so that no window is left
+belonging to nothing. It travels as a named event of the session rather than a
+window message — the agent starts that process and deliberately keeps no handle to
+it. Nobody listening is the usual case, and it is a normal answer.
+
 ## The tray
 
 The settings window is a guest on the screen rather than the app itself: it shows
 up after the installation and whenever the icon or its menu is asked for. Both
 buttons in its title bar mean what they say — the window closes and its process
-ends. The way out of the app itself is the Exit item of the tray menu.
+ends. The way out of the app itself is the Exit item of the tray menu — and it
+closes an open settings window along with the agent.
 
 The menu of the icon is a system one, drawn by Windows. Its captions still follow
 the language chosen in the settings, but the theme no longer reaches it: a WPF