Merge remote-tracking branch 'origin/main' into feature/llm

The actions page now has a list of all the commands (default, user,
fragments etc) and clicking a command from that page brings you to an
"Edit action" page where you can fully view and edit both the action
type and any additional arguments.

## Detailed Description of the Pull Request / Additional comments
Actions View Model
* Added several new view models
* `CommandViewModel` (view model for a `Command`), a list of these is
created and managed by `ActionsViewModel`
* `ActionArgsViewModel` (view model for an `ActionArgs`), created and
managed by `CommandViewModel`
* `ArgWrapper` (view model for each individual argument inside an
`ActionArgs`), created and managed by `ActionArgsViewModel`

Actions page
* No longer a list of only keybindings, instead it is a list of every
command Terminal knows about

EditAction page
* New page that you get to by clicking a command from the Actions page
* Bound to a `CommandViewModel`
* Allows editing the type of shortcut action and the command name
* Depending on the shortcut action, displays a list of additional
arguments allowed for the command with the appropriate templating (bool
arguments are switches, flags are checkboxes etc)

Closes #19019

src/cascadia/TerminalControl/ControlCore.cpp

@@ -152,12 +152,27 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
             _renderer->SetBackgroundColorChangedCallback([this]() { _rendererBackgroundColorChanged(); });
             _renderer->SetFrameColorChangedCallback([this]() { _rendererTabColorChanged(); });
-            _renderer->SetRendererEnteredErrorStateCallback([this]() { RendererEnteredErrorState.raise(nullptr, nullptr); });
+            _renderer->SetRendererEnteredErrorStateCallback([this]() { _rendererEnteredErrorState(); });
         }
 
         UpdateSettings(settings, unfocusedAppearance);
     }
 
+    void ControlCore::_rendererEnteredErrorState()
+    {
+        // The first time the renderer fails out (after all of its own retries), switch it to D2D and WARP
+        // and force it to try again. If it _still_ fails, we can let it halt.
+        if (_renderFailures++ == 0)
+        {
+            const auto lock = _terminal->LockForWriting();
+            _renderEngine->SetGraphicsAPI(parseGraphicsAPI(GraphicsAPI::Direct2D));
+            _renderEngine->SetSoftwareRendering(true);
+            _renderer->EnablePainting();
+            return;
+        }
+        RendererEnteredErrorState.raise(nullptr, nullptr);
+    }
+
     void ControlCore::_setupDispatcherAndCallbacks()
     {
         // Get our dispatcher. If we're hosted in-proc with XAML, this will get
@@ -917,6 +932,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         _renderEngine->SetSoftwareRendering(_settings.SoftwareRendering());
         // Inform the renderer of our opacity
         _renderEngine->EnableTransparentBackground(_isBackgroundTransparent());
+        _renderFailures = 0; // We may have changed the engine; reset the failure counter.
 
         // Trigger a redraw to repaint the window background and tab colors.
         _renderer->TriggerRedrawAll(true, true);
@@ -1983,6 +1999,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     {
         // The lock must be held, because it calls into IRenderData which is shared state.
         const auto lock = _terminal->LockForWriting();
+        _renderFailures = 0;
         _renderer->EnablePainting();
     }
 

src/cascadia/TerminalControl/ControlCore.h

@@ -344,6 +344,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         safe_void_coroutine _renderEngineSwapChainChanged(const HANDLE handle);
         void _rendererBackgroundColorChanged();
         void _rendererTabColorChanged();
+        void _rendererEnteredErrorState();
 #pragma endregion
 
         void _raiseReadOnlyWarning();
@@ -398,6 +399,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         float _panelWidth{ 0 };
         float _panelHeight{ 0 };
         float _compositionScale{ 0 };
+        uint8_t _renderFailures{ 0 };
         bool _forceCursorVisible = false;
 
         // Audio stuff.

src/cascadia/TerminalSettingsEditor/Actions.cpp

@@ -18,52 +18,17 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         Automation::AutomationProperties::SetName(AddNewButton(), RS_(L"Actions_AddNewTextBlock/Text"));
     }
 
-    Automation::Peers::AutomationPeer Actions::OnCreateAutomationPeer()
-    {
-        _ViewModel.OnAutomationPeerAttached();
-        return nullptr;
-    }
-
     void Actions::OnNavigatedTo(const NavigationEventArgs& e)
     {
         _ViewModel = e.Parameter().as<Editor::ActionsViewModel>();
+        _ViewModel.CurrentPage(ActionsSubPage::Base);
+        auto vmImpl = get_self<ActionsViewModel>(_ViewModel);
+        vmImpl->MarkAsVisited();
+        _layoutUpdatedRevoker = LayoutUpdated(winrt::auto_revoke, [this](auto /*s*/, auto /*e*/) {
+            // Only let this succeed once.
+            _layoutUpdatedRevoker.revoke();
 
-        // Subscribe to the view model's FocusContainer event.
-        // Use the KeyBindingViewModel or index provided in the event to focus the corresponding container
-        _ViewModel.FocusContainer([this](const auto& /*sender*/, const auto& args) {
-            if (auto kbdVM{ args.try_as<KeyBindingViewModel>() })
-            {
-                if (const auto& container = KeyBindingsListView().ContainerFromItem(*kbdVM))
-                {
-                    container.as<Controls::ListViewItem>().Focus(FocusState::Programmatic);
-                }
-            }
-            else if (const auto& index = args.try_as<uint32_t>())
-            {
-                if (const auto& container = KeyBindingsListView().ContainerFromIndex(*index))
-                {
-                    container.as<Controls::ListViewItem>().Focus(FocusState::Programmatic);
-                }
-            }
-        });
-
-        // Subscribe to the view model's UpdateBackground event.
-        // The view model does not have access to the page resources, so it asks us
-        // to update the key binding's container background
-        _ViewModel.UpdateBackground([this](const auto& /*sender*/, const auto& args) {
-            if (auto kbdVM{ args.try_as<KeyBindingViewModel>() })
-            {
-                if (kbdVM->IsInEditMode())
-                {
-                    const auto& containerBackground{ Resources().Lookup(box_value(L"ActionContainerBackgroundEditing")).as<Windows::UI::Xaml::Media::Brush>() };
-                    kbdVM->ContainerBackground(containerBackground);
-                }
-                else
-                {
-                    const auto& containerBackground{ Resources().Lookup(box_value(L"ActionContainerBackground")).as<Windows::UI::Xaml::Media::Brush>() };
-                    kbdVM->ContainerBackground(containerBackground);
-                }
-            }
+            AddNewButton().Focus(FocusState::Programmatic);
         });
 
         TraceLoggingWrite(
@@ -74,9 +39,4 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
             TraceLoggingKeyword(MICROSOFT_KEYWORD_MEASURES),
             TelemetryPrivacyDataTag(PDT_ProductAndServiceUsage));
     }
-
-    void Actions::AddNew_Click(const IInspectable& /*sender*/, const RoutedEventArgs& /*eventArgs*/)
-    {
-        _ViewModel.AddNewKeybinding();
-    }
 }

src/cascadia/TerminalSettingsEditor/Actions.h

@@ -16,12 +16,12 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         Actions();
 
         void OnNavigatedTo(const winrt::Windows::UI::Xaml::Navigation::NavigationEventArgs& e);
-        Windows::UI::Xaml::Automation::Peers::AutomationPeer OnCreateAutomationPeer();
-
-        void AddNew_Click(const IInspectable& sender, const Windows::UI::Xaml::RoutedEventArgs& eventArgs);
 
         til::property_changed_event PropertyChanged;
         WINRT_OBSERVABLE_PROPERTY(Editor::ActionsViewModel, ViewModel, PropertyChanged.raise, nullptr);
+
+    private:
+        winrt::Windows::UI::Xaml::FrameworkElement::LayoutUpdated_revoker _layoutUpdatedRevoker;
     };
 }
 

src/cascadia/TerminalSettingsEditor/Actions.xaml

@@ -123,7 +123,7 @@
             <Style x:Key="KeyBindingContainerStyle"
                    BasedOn="{StaticResource DefaultListViewItemStyle}"
                    TargetType="ListViewItem">
-                <Setter Property="Padding" Value="4" />
+                <Setter Property="Padding" Value="12,4,4,4" />
                 <Setter Property="HorizontalContentAlignment" Value="Stretch" />
                 <Setter Property="XYFocusKeyboardNavigation" Value="Enabled" />
             </Style>
@@ -138,24 +138,6 @@
                 <Setter Property="HorizontalAlignment" Value="Right" />
                 <Setter Property="VerticalAlignment" Value="Center" />
             </Style>
-            <x:Int32 x:Key="EditButtonSize">32</x:Int32>
-            <x:Double x:Key="EditButtonIconSize">14</x:Double>
-            <Style x:Key="EditButtonStyle"
-                   BasedOn="{StaticResource DefaultButtonStyle}"
-                   TargetType="Button">
-                <Setter Property="Padding" Value="0" />
-                <Setter Property="VerticalAlignment" Value="Center" />
-                <Setter Property="Height" Value="{StaticResource EditButtonSize}" />
-                <Setter Property="Width" Value="{StaticResource EditButtonSize}" />
-            </Style>
-            <Style x:Key="AccentEditButtonStyle"
-                   BasedOn="{StaticResource AccentButtonStyle}"
-                   TargetType="Button">
-                <Setter Property="Padding" Value="4" />
-                <Setter Property="VerticalAlignment" Value="Center" />
-                <Setter Property="Height" Value="{StaticResource EditButtonSize}" />
-                <Setter Property="Width" Value="{StaticResource EditButtonSize}" />
-            </Style>
 
             <!--  Converters & Misc.  -->
             <SolidColorBrush x:Key="ActionContainerBackgroundEditing"
@@ -164,15 +146,9 @@
                              Color="Transparent" />
 
             <!--  Templates  -->
-            <DataTemplate x:Key="KeyBindingTemplate"
-                          x:DataType="local:KeyBindingViewModel">
-                <ListViewItem AutomationProperties.AcceleratorKey="{x:Bind KeyChordText, Mode=OneWay}"
-                              AutomationProperties.Name="{x:Bind Name, Mode=OneWay}"
-                              Background="{x:Bind ContainerBackground, Mode=OneWay}"
-                              GotFocus="{x:Bind ActionGotFocus}"
-                              LostFocus="{x:Bind ActionLostFocus}"
-                              PointerEntered="{x:Bind EnterHoverMode}"
-                              PointerExited="{x:Bind ExitHoverMode}"
+            <DataTemplate x:Key="CommandTemplate"
+                          x:DataType="local:CommandViewModel">
+                <ListViewItem AutomationProperties.Name="{x:Bind DisplayNameAndKeyChordAutomationPropName, Mode=OneWay}"
                               Style="{StaticResource KeyBindingContainerStyle}">
                     <Grid ColumnSpacing="8">
                         <Grid.ColumnDefinitions>
@@ -180,146 +156,25 @@
                             <ColumnDefinition Width="*" />
                             <!--  key chord  -->
                             <ColumnDefinition Width="auto" />
-                            <!--  edit buttons  -->
-                            <!--
-                                This needs to be 112 because that is the width of the row of buttons in edit mode + padding.
-                                3 buttons: 32+32+32
-                                Padding:       8+ 8
-                                This allows the "edit" button to align with the "cancel" button seamlessly
-                            -->
-                            <ColumnDefinition Width="112" />
                         </Grid.ColumnDefinitions>
 
                         <!--  Command Name  -->
                         <TextBlock Grid.Column="0"
                                    FontWeight="Normal"
                                    Style="{StaticResource KeyBindingNameTextBlockStyle}"
-                                   Text="{x:Bind Name, Mode=OneWay}"
-                                   Visibility="{x:Bind mtu:Converters.InvertedBooleanToVisibility(IsInEditMode), Mode=OneWay}" />
-
-                        <!--  Edit Mode: Action Combo-box  -->
-                        <ComboBox x:Uid="Actions_ActionComboBox"
-                                  Grid.Column="0"
-                                  VerticalAlignment="Center"
-                                  ItemsSource="{x:Bind AvailableActions, Mode=OneWay}"
-                                  SelectedItem="{x:Bind ProposedAction, Mode=TwoWay}"
-                                  Visibility="{x:Bind IsInEditMode, Mode=OneWay}" />
-
+                                   Text="{x:Bind DisplayName, Mode=OneWay}" />
                         <!--  Key Chord Text  -->
                         <Border Grid.Column="1"
-                                Padding="2,0,2,0"
+                                Padding="8,4,8,4"
                                 HorizontalAlignment="Right"
                                 VerticalAlignment="Center"
                                 Style="{ThemeResource KeyChordBorderStyle}"
-                                Visibility="{x:Bind mtu:Converters.InvertedBooleanToVisibility(IsInEditMode), Mode=OneWay}">
-
+                                Visibility="{x:Bind mtu:Converters.StringNotEmptyToVisibility(FirstKeyChordText)}">
                             <TextBlock FontSize="14"
                                        Style="{ThemeResource KeyChordTextBlockStyle}"
-                                       Text="{x:Bind KeyChordText, Mode=OneWay}"
+                                       Text="{x:Bind FirstKeyChordText, Mode=OneWay}"
                                        TextWrapping="WrapWholeWords" />
                         </Border>
-
-                        <!--  Edit Mode: Key Chord Listener  -->
-                        <local:KeyChordListener Grid.Column="1"
-                                                Keys="{x:Bind ProposedKeys, Mode=TwoWay}"
-                                                Style="{StaticResource KeyChordEditorStyle}"
-                                                Visibility="{x:Bind IsInEditMode, Mode=OneWay}" />
-
-                        <!--  Edit Button  -->
-                        <Button x:Uid="Actions_EditButton"
-                                Grid.Column="2"
-                                AutomationProperties.Name="{x:Bind EditButtonName}"
-                                Background="Transparent"
-                                Click="{x:Bind ToggleEditMode}"
-                                GettingFocus="{x:Bind EditButtonGettingFocus}"
-                                LosingFocus="{x:Bind EditButtonLosingFocus}"
-                                Style="{StaticResource EditButtonStyle}"
-                                Visibility="{x:Bind ShowEditButton, Mode=OneWay}">
-                            <Button.Content>
-                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
-                                          Glyph="&#xE70F;" />
-                            </Button.Content>
-                            <Button.Resources>
-                                <ResourceDictionary>
-                                    <ResourceDictionary.ThemeDictionaries>
-                                        <ResourceDictionary x:Key="Light">
-                                            <SolidColorBrush x:Key="ButtonForegroundPointerOver"
-                                                             Color="{StaticResource SystemAccentColor}" />
-                                            <SolidColorBrush x:Key="ButtonForegroundPressed"
-                                                             Color="{StaticResource SystemAccentColor}" />
-                                        </ResourceDictionary>
-                                        <ResourceDictionary x:Key="Dark">
-                                            <SolidColorBrush x:Key="ButtonForegroundPointerOver"
-                                                             Color="{StaticResource SystemAccentColor}" />
-                                            <SolidColorBrush x:Key="ButtonForegroundPressed"
-                                                             Color="{StaticResource SystemAccentColor}" />
-                                        </ResourceDictionary>
-                                        <ResourceDictionary x:Key="HighContrast">
-                                            <SolidColorBrush x:Key="ButtonBackground"
-                                                             Color="{ThemeResource SystemColorButtonFaceColor}" />
-                                            <SolidColorBrush x:Key="ButtonBackgroundPointerOver"
-                                                             Color="{ThemeResource SystemColorHighlightColor}" />
-                                            <SolidColorBrush x:Key="ButtonBackgroundPressed"
-                                                             Color="{ThemeResource SystemColorHighlightColor}" />
-                                            <SolidColorBrush x:Key="ButtonForeground"
-                                                             Color="{ThemeResource SystemColorButtonTextColor}" />
-                                            <SolidColorBrush x:Key="ButtonForegroundPointerOver"
-                                                             Color="{ThemeResource SystemColorHighlightTextColor}" />
-                                            <SolidColorBrush x:Key="ButtonForegroundPressed"
-                                                             Color="{ThemeResource SystemColorHighlightTextColor}" />
-                                        </ResourceDictionary>
-                                    </ResourceDictionary.ThemeDictionaries>
-                                </ResourceDictionary>
-                            </Button.Resources>
-                        </Button>
-
-                        <!--  Edit Mode: Buttons  -->
-                        <StackPanel Grid.Column="2"
-                                    Orientation="Horizontal"
-                                    Visibility="{x:Bind IsInEditMode, Mode=OneWay}">
-
-                            <!--  Cancel editing the action  -->
-                            <Button x:Uid="Actions_CancelButton"
-                                    AutomationProperties.Name="{x:Bind CancelButtonName}"
-                                    Click="{x:Bind CancelChanges}"
-                                    Style="{StaticResource EditButtonStyle}">
-                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
-                                          Glyph="&#xE711;" />
-                            </Button>
-
-                            <!--  Accept changes  -->
-                            <Button x:Uid="Actions_AcceptButton"
-                                    Margin="8,0,0,0"
-                                    AutomationProperties.Name="{x:Bind AcceptButtonName}"
-                                    Click="{x:Bind AttemptAcceptChanges}"
-                                    Flyout="{x:Bind AcceptChangesFlyout, Mode=OneWay}"
-                                    Style="{StaticResource AccentEditButtonStyle}">
-                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
-                                          Glyph="&#xE8FB;" />
-                            </Button>
-
-                            <!--  Delete the current key binding  -->
-                            <Button x:Uid="Actions_DeleteButton"
-                                    Margin="8,0,0,0"
-                                    AutomationProperties.Name="{x:Bind DeleteButtonName}"
-                                    Style="{StaticResource DeleteSmallButtonStyle}"
-                                    Visibility="{x:Bind mtu:Converters.InvertedBooleanToVisibility(IsNewlyAdded), Mode=OneWay}">
-                                <Button.Content>
-                                    <FontIcon FontSize="{StaticResource EditButtonIconSize}"
-                                              Glyph="&#xE74D;" />
-                                </Button.Content>
-                                <Button.Flyout>
-                                    <Flyout FlyoutPresenterStyle="{StaticResource CustomFlyoutPresenterStyle}">
-                                        <StackPanel>
-                                            <TextBlock x:Uid="Actions_DeleteConfirmationMessage"
-                                                       Style="{StaticResource CustomFlyoutTextStyle}" />
-                                            <Button x:Uid="Actions_DeleteConfirmationButton"
-                                                    Click="{x:Bind DeleteKeyBinding}" />
-                                        </StackPanel>
-                                    </Flyout>
-                                </Button.Flyout>
-                            </Button>
-                        </StackPanel>
                     </Grid>
                 </ListViewItem>
             </DataTemplate>
@@ -331,10 +186,14 @@
                     HorizontalAlignment="Left"
                     Spacing="8"
                     Style="{StaticResource SettingsStackStyle}">
+            <HyperlinkButton x:Uid="Actions_Disclaimer"
+                             Margin="0"
+                             Padding="0"
+                             NavigateUri="https://go.microsoft.com/fwlink/?linkid=2341386" />
             <!--  Add New Button  -->
             <Button x:Name="AddNewButton"
                     Margin="0,12,0,0"
-                    Click="AddNew_Click">
+                    Click="{x:Bind ViewModel.AddNewCommand}">
                 <Button.Content>
                     <StackPanel Orientation="Horizontal">
                         <FontIcon FontSize="{StaticResource StandardIconSize}"
@@ -345,11 +204,13 @@
                 </Button.Content>
             </Button>
 
-            <!--  Keybindings  -->
-            <ListView x:Name="KeyBindingsListView"
-                      ItemTemplate="{StaticResource KeyBindingTemplate}"
-                      ItemsSource="{x:Bind ViewModel.KeyBindingList, Mode=OneWay}"
-                      SelectionMode="None" />
+            <!--  Commands  -->
+            <ListView x:Name="CommandsListView"
+                      Margin="-8,0,0,0"
+                      IsItemClickEnabled="True"
+                      ItemClick="{x:Bind ViewModel.CmdListItemClicked}"
+                      ItemTemplate="{StaticResource CommandTemplate}"
+                      ItemsSource="{x:Bind ViewModel.CommandList, Mode=OneWay}" />
         </StackPanel>
     </Border>
 </Page>

src/cascadia/TerminalSettingsEditor/ActionsViewModel.h

@@ -1,130 +1,304 @@
-// Copyright (c) Microsoft Corporation.
-// Licensed under the MIT license.
+/*++
+Copyright (c) Microsoft Corporation
+Licensed under the MIT license.
+
+Module Name:
+- ActionsViewModel.h
+
+Abstract:
+- This contains the view models for everything related to the Actions pages (Actions.xaml and EditAction.xaml)
+- ActionsViewModel:
+    - Contains the "current page" enum, which dictates whether we're in the top-level Actions page or the EditAction page
+    - Contains the full command list, and keeps track of the "current command" that is being edited
+        - These are in the form of CommandViewModel(s)
+    - Handles modification to the list of commands, i.e. addition/deletion
+    - Listens to each CommandViewModel for key chord events for addition/modification/deletion of keychords
+- CommandViewModel:
+    - Constructed with a Model::Command object
+    - View model for each specific command item
+    - Contains higher-level detail about the command itself such as name, whether it is a user command, and the shortcut action type
+    - Contains an ActionArgsViewModel, which it creates according to the shortcut action type
+        - Recreates the ActionArgsViewModel whenever the shortcut action type changes
+    - Contains the full keybinding list, in the form of KeyChordViewModel(s)
+- ActionArgsViewModel:
+    - Constructed with a Model::ActionAndArgs object
+    - Contains a vector of ArgWrapper(s), one ArgWrapper for each arg
+    - Listens and propagates changes to the ArgWrappers
+- ArgWrapper:
+    - Wrapper for each argument
+    - Handles binding and bind back logic for the presentation and modification of the argument via the UI
+        - Has separate binding and bind back logic depending on the type of the argument
+- KeyChordViewModel:
+    - Constructed with a Control::KeyChord object
+    - Handles binding and bind back logic for the presentation and modification of a keybinding via the UI
+
+--*/
 
 #pragma once
 
 #include "ActionsViewModel.g.h"
-#include "KeyBindingViewModel.g.h"
-#include "ModifyKeyBindingEventArgs.g.h"
+#include "NavigateToCommandArgs.g.h"
+#include "CommandViewModel.g.h"
+#include "ArgWrapper.g.h"
+#include "ActionArgsViewModel.g.h"
+#include "KeyChordViewModel.g.h"
+#include "ModifyKeyChordEventArgs.g.h"
 #include "Utils.h"
 #include "ViewModelHelpers.h"
 
 namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
 {
-    struct KeyBindingViewModelComparator
-    {
-        bool operator()(const Editor::KeyBindingViewModel& lhs, const Editor::KeyBindingViewModel& rhs) const
-        {
-            return lhs.Name() < rhs.Name();
-        }
-    };
-
-    struct ModifyKeyBindingEventArgs : ModifyKeyBindingEventArgsT<ModifyKeyBindingEventArgs>
+    struct NavigateToCommandArgs : NavigateToCommandArgsT<NavigateToCommandArgs>
     {
     public:
-        ModifyKeyBindingEventArgs(const Control::KeyChord& oldKeys, const Control::KeyChord& newKeys, const hstring oldActionName, const hstring newActionName) :
+        NavigateToCommandArgs(CommandViewModel command, Editor::IHostedInWindow windowRoot) :
+            _Command(command),
+            _WindowRoot(windowRoot) {}
+
+        Editor::IHostedInWindow WindowRoot() const noexcept { return _WindowRoot; }
+        Editor::CommandViewModel Command() const noexcept { return _Command; }
+
+    private:
+        Editor::IHostedInWindow _WindowRoot;
+        Editor::CommandViewModel _Command{ nullptr };
+    };
+
+    struct ModifyKeyChordEventArgs : ModifyKeyChordEventArgsT<ModifyKeyChordEventArgs>
+    {
+    public:
+        ModifyKeyChordEventArgs(const Control::KeyChord& oldKeys, const Control::KeyChord& newKeys) :
             _OldKeys{ oldKeys },
-            _NewKeys{ newKeys },
-            _OldActionName{ std::move(oldActionName) },
-            _NewActionName{ std::move(newActionName) } {}
+            _NewKeys{ newKeys } {}
 
         WINRT_PROPERTY(Control::KeyChord, OldKeys, nullptr);
         WINRT_PROPERTY(Control::KeyChord, NewKeys, nullptr);
-        WINRT_PROPERTY(hstring, OldActionName);
-        WINRT_PROPERTY(hstring, NewActionName);
     };
 
-    struct KeyBindingViewModel : KeyBindingViewModelT<KeyBindingViewModel>, ViewModelHelper<KeyBindingViewModel>
+    struct CommandViewModel : CommandViewModelT<CommandViewModel>, ViewModelHelper<CommandViewModel>
     {
     public:
-        KeyBindingViewModel(const Windows::Foundation::Collections::IObservableVector<hstring>& availableActions);
-        KeyBindingViewModel(const Control::KeyChord& keys, const hstring& name, const Windows::Foundation::Collections::IObservableVector<hstring>& availableActions);
+        CommandViewModel(const winrt::Microsoft::Terminal::Settings::Model::Command& cmd,
+                         std::vector<Control::KeyChord> keyChordList,
+                         const Editor::ActionsViewModel& actionsPageVM,
+                         Windows::Foundation::Collections::IMap<Model::ShortcutAction, winrt::hstring> availableActionsAndNamesMap,
+                         Windows::Foundation::Collections::IMap<winrt::hstring, Model::ShortcutAction> nameToActionMap);
+        void Initialize();
 
-        hstring Name() const { return _CurrentAction; }
-        hstring KeyChordText() const { return _KeyChordText; }
+        winrt::hstring DisplayName();
+        winrt::hstring Name();
+        void Name(const winrt::hstring& newName);
+        winrt::hstring DisplayNameAndKeyChordAutomationPropName();
+
+        winrt::hstring FirstKeyChordText();
+
+        winrt::hstring ID();
+        bool IsUserAction();
+
+        void Edit_Click();
+        til::typed_event<Editor::CommandViewModel, IInspectable> EditRequested;
+
+        void Delete_Click();
+        til::typed_event<Editor::CommandViewModel, IInspectable> DeleteRequested;
+
+        void AddKeybinding_Click();
+
+        // UIA text
+        winrt::hstring ActionNameTextBoxAutomationPropName();
+        winrt::hstring ShortcutActionComboBoxAutomationPropName();
+        winrt::hstring AdditionalArgumentsControlAutomationPropName();
+
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateColorSchemeRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateColorSchemeNamesRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateWindowRootRequested;
+        til::typed_event<IInspectable, IInspectable> FocusContainer;
+
+        VIEW_MODEL_OBSERVABLE_PROPERTY(IInspectable, ProposedShortcutActionName);
+        VIEW_MODEL_OBSERVABLE_PROPERTY(Editor::ActionArgsViewModel, ActionArgsVM, nullptr);
+        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<hstring>, AvailableShortcutActions, nullptr);
+        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<Editor::KeyChordViewModel>, KeyChordList, nullptr);
+        WINRT_PROPERTY(bool, IsNewCommand, false);
+
+    private:
+        winrt::hstring _cachedDisplayName;
+        winrt::Microsoft::Terminal::Settings::Model::Command _command;
+        std::vector<Control::KeyChord> _keyChordList;
+        weak_ref<Editor::ActionsViewModel> _actionsPageVM{ nullptr };
+        Windows::Foundation::Collections::IMap<Model::ShortcutAction, winrt::hstring> _availableActionsAndNamesMap;
+        Windows::Foundation::Collections::IMap<winrt::hstring, Model::ShortcutAction> _nameToActionMap;
+        void _RegisterKeyChordVMEvents(Editor::KeyChordViewModel kcVM);
+        void _RegisterActionArgsVMEvents(Editor::ActionArgsViewModel actionArgsVM);
+        void _ReplaceCommandWithUserCopy(bool reinitialize);
+        void _CreateAndInitializeActionArgsVMHelper();
+    };
+
+    struct ArgWrapper : ArgWrapperT<ArgWrapper>, ViewModelHelper<ArgWrapper>
+    {
+    public:
+        ArgWrapper(const Model::ArgDescriptor& descriptor, const Windows::Foundation::IInspectable& value);
+        void Initialize();
+
+        winrt::hstring Name() const noexcept { return _descriptor.Name; };
+        winrt::hstring Type() const noexcept { return _descriptor.Type; };
+        Model::ArgTypeHint TypeHint() const noexcept { return _descriptor.TypeHint; };
+        bool Required() const noexcept { return _descriptor.Required; };
+
+        // We cannot use the macro here because we need to implement additional logic for the setter
+        Windows::Foundation::IInspectable EnumValue() const noexcept { return _EnumValue; };
+        void EnumValue(const Windows::Foundation::IInspectable& value);
+        Windows::Foundation::Collections::IObservableVector<Microsoft::Terminal::Settings::Editor::EnumEntry> EnumList() const noexcept { return _EnumList; };
+        Windows::Foundation::Collections::IObservableVector<Microsoft::Terminal::Settings::Editor::FlagEntry> FlagList() const noexcept { return _FlagList; };
+
+        // unboxing functions
+        winrt::hstring UnboxString(const Windows::Foundation::IInspectable& value);
+        int32_t UnboxInt32(const Windows::Foundation::IInspectable& value);
+        float UnboxInt32Optional(const Windows::Foundation::IInspectable& value);
+        uint32_t UnboxUInt32(const Windows::Foundation::IInspectable& value);
+        float UnboxUInt32Optional(const Windows::Foundation::IInspectable& value);
+        float UnboxFloat(const Windows::Foundation::IInspectable& value);
+        bool UnboxBool(const Windows::Foundation::IInspectable& value);
+        winrt::Windows::Foundation::IReference<bool> UnboxBoolOptional(const Windows::Foundation::IInspectable& value);
+        winrt::Windows::Foundation::IReference<Microsoft::Terminal::Core::Color> UnboxTerminalCoreColorOptional(const Windows::Foundation::IInspectable& value);
+        winrt::Windows::Foundation::IReference<Microsoft::Terminal::Core::Color> UnboxWindowsUIColorOptional(const Windows::Foundation::IInspectable& value);
+
+        // bind back functions
+        void StringBindBack(const winrt::hstring& newValue);
+        void Int32BindBack(const double newValue);
+        void Int32OptionalBindBack(const double newValue);
+        void UInt32BindBack(const double newValue);
+        void UInt32OptionalBindBack(const double newValue);
+        void FloatBindBack(const double newValue);
+        void BoolOptionalBindBack(const Windows::Foundation::IReference<bool> newValue);
+        void TerminalCoreColorBindBack(const winrt::Windows::Foundation::IReference<Microsoft::Terminal::Core::Color> newValue);
+        void WindowsUIColorBindBack(const winrt::Windows::Foundation::IReference<Microsoft::Terminal::Core::Color> newValue);
+
+        safe_void_coroutine BrowseForFile_Click(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::RoutedEventArgs& e);
+        safe_void_coroutine BrowseForFolder_Click(const Windows::Foundation::IInspectable& sender, const Windows::UI::Xaml::RoutedEventArgs& e);
+
+        // some argWrappers need to know additional information (like the default color scheme or the list of all color scheme names)
+        // to avoid populating all ArgWrappers with that information, instead we emit an event when we need that information
+        // (these events then get propagated up to the ActionsVM) and then the actionsVM will populate the value in us
+        // since there's an actionArgsVM above us and a commandVM above that, the event does get propagated through a few times but that's
+        // probably better than having every argWrapper contain the information by default
+        til::typed_event<IInspectable, Editor::ArgWrapper> ColorSchemeRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> ColorSchemeNamesRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> WindowRootRequested;
+
+        VIEW_MODEL_OBSERVABLE_PROPERTY(Editor::ColorSchemeViewModel, DefaultColorScheme, nullptr);
+        VIEW_MODEL_OBSERVABLE_PROPERTY(Windows::Foundation::IInspectable, Value, nullptr);
+        WINRT_PROPERTY(Windows::Foundation::Collections::IVector<winrt::hstring>, ColorSchemeNamesList, nullptr);
+        WINRT_PROPERTY(Editor::IHostedInWindow, WindowRoot, nullptr);
+
+    private:
+        Model::ArgDescriptor _descriptor;
+        Windows::Foundation::IInspectable _EnumValue{ nullptr };
+        Windows::Foundation::Collections::IObservableVector<Microsoft::Terminal::Settings::Editor::EnumEntry> _EnumList;
+        Windows::Foundation::Collections::IObservableVector<Microsoft::Terminal::Settings::Editor::FlagEntry> _FlagList;
+
+        template<typename EnumType>
+        void _InitializeEnumListAndValue(
+            const winrt::Windows::Foundation::Collections::IMapView<winrt::hstring, EnumType>& mappings,
+            const winrt::hstring& resourceSectionAndType,
+            const winrt::hstring& resourceProperty,
+            const bool nullable);
+
+        template<typename EnumType>
+        void _InitializeFlagListAndValue(
+            const winrt::Windows::Foundation::Collections::IMapView<winrt::hstring, EnumType>& mappings,
+            const winrt::hstring& resourceSectionAndType,
+            const winrt::hstring& resourceProperty,
+            const bool nullable);
+    };
+
+    struct ActionArgsViewModel : ActionArgsViewModelT<ActionArgsViewModel>, ViewModelHelper<ActionArgsViewModel>
+    {
+    public:
+        ActionArgsViewModel(const Microsoft::Terminal::Settings::Model::ActionAndArgs actionAndArgs);
+        void Initialize();
+
+        bool HasArgs() const noexcept;
+        void ReplaceActionAndArgs(Model::ActionAndArgs newActionAndArgs);
+
+        til::typed_event<IInspectable, IInspectable> WrapperValueChanged;
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateColorSchemeRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateColorSchemeNamesRequested;
+        til::typed_event<IInspectable, Editor::ArgWrapper> PropagateWindowRootRequested;
+
+        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<Editor::ArgWrapper>, ArgValues, nullptr);
+
+    private:
+        Model::ActionAndArgs _actionAndArgs{ nullptr };
+    };
+
+    struct KeyChordViewModel : KeyChordViewModelT<KeyChordViewModel>, ViewModelHelper<KeyChordViewModel>
+    {
+    public:
+        KeyChordViewModel(Control::KeyChord CurrentKeys);
+
+        void CurrentKeys(const Control::KeyChord& newKeys);
+        Control::KeyChord CurrentKeys() const noexcept;
+
+        void ToggleEditMode();
+        void AcceptChanges();
+        void CancelChanges();
+        void DeleteKeyChord();
 
         // UIA Text
-        hstring EditButtonName() const noexcept;
         hstring CancelButtonName() const noexcept;
         hstring AcceptButtonName() const noexcept;
         hstring DeleteButtonName() const noexcept;
 
-        void EnterHoverMode() { IsHovered(true); };
-        void ExitHoverMode() { IsHovered(false); };
-        void ActionGotFocus() { IsContainerFocused(true); };
-        void ActionLostFocus() { IsContainerFocused(false); };
-        void EditButtonGettingFocus() { IsEditButtonFocused(true); };
-        void EditButtonLosingFocus() { IsEditButtonFocused(false); };
-        bool ShowEditButton() const noexcept;
-        void ToggleEditMode();
-        void DisableEditMode() { IsInEditMode(false); }
-        void AttemptAcceptChanges();
-        void AttemptAcceptChanges(const Control::KeyChord newKeys);
-        void CancelChanges();
-        void DeleteKeyBinding() { DeleteKeyBindingRequested.raise(*this, _CurrentKeys); }
-
-        // ProposedAction:   the entry selected by the combo box; may disagree with the settings model.
-        // CurrentAction:    the combo box item that maps to the settings model value.
-        // AvailableActions: the list of options in the combo box; both actions above must be in this list.
-        // NOTE: ProposedAction and CurrentAction may disagree mainly due to the "edit mode" system in place.
-        //       Current Action serves as...
-        //       1 - a record of what to set ProposedAction to on a cancellation
-        //       2 - a form of translation between ProposedAction and the settings model
-        //       We would also need an ActionMap reference to remove this, but this is a better separation
-        //       of responsibilities.
-        VIEW_MODEL_OBSERVABLE_PROPERTY(IInspectable, ProposedAction);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(hstring, CurrentAction);
-        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<hstring>, AvailableActions, nullptr);
-
-        // ProposedKeys: the keys proposed by the control; may disagree with the settings model.
-        // CurrentKeys:  the key chord bound in the settings model.
-        VIEW_MODEL_OBSERVABLE_PROPERTY(Control::KeyChord, ProposedKeys);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(Control::KeyChord, CurrentKeys, nullptr);
-
         VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsInEditMode, false);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsNewlyAdded, false);
+        VIEW_MODEL_OBSERVABLE_PROPERTY(Control::KeyChord, ProposedKeys);
+        VIEW_MODEL_OBSERVABLE_PROPERTY(winrt::hstring, KeyChordText);
         VIEW_MODEL_OBSERVABLE_PROPERTY(Windows::UI::Xaml::Controls::Flyout, AcceptChangesFlyout, nullptr);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsAutomationPeerAttached, false);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsHovered, false);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsContainerFocused, false);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(bool, IsEditButtonFocused, false);
-        VIEW_MODEL_OBSERVABLE_PROPERTY(Windows::UI::Xaml::Media::Brush, ContainerBackground, nullptr);
 
     public:
-        til::typed_event<Editor::KeyBindingViewModel, Editor::ModifyKeyBindingEventArgs> ModifyKeyBindingRequested;
-        til::typed_event<Editor::KeyBindingViewModel, Terminal::Control::KeyChord> DeleteKeyBindingRequested;
-        til::typed_event<Editor::KeyBindingViewModel, IInspectable> DeleteNewlyAddedKeyBinding;
+        til::typed_event<Editor::KeyChordViewModel, Terminal::Control::KeyChord> AddKeyChordRequested;
+        til::typed_event<Editor::KeyChordViewModel, Editor::ModifyKeyChordEventArgs> ModifyKeyChordRequested;
+        til::typed_event<Editor::KeyChordViewModel, Terminal::Control::KeyChord> DeleteKeyChordRequested;
 
     private:
-        hstring _KeyChordText{};
+        Control::KeyChord _currentKeys;
     };
 
     struct ActionsViewModel : ActionsViewModelT<ActionsViewModel>, ViewModelHelper<ActionsViewModel>
     {
     public:
         ActionsViewModel(Model::CascadiaSettings settings);
+        void UpdateSettings(const Model::CascadiaSettings& settings);
+        void MarkAsVisited();
+        bool DisplayBadge() const noexcept;
 
-        void OnAutomationPeerAttached();
-        void AddNewKeybinding();
+        void AddNewCommand();
 
-        til::typed_event<IInspectable, IInspectable> FocusContainer;
-        til::typed_event<IInspectable, IInspectable> UpdateBackground;
+        void CurrentCommand(const Editor::CommandViewModel& newCommand);
+        Editor::CommandViewModel CurrentCommand();
+        void CmdListItemClicked(const winrt::Windows::Foundation::IInspectable& sender, const winrt::Windows::UI::Xaml::Controls::ItemClickEventArgs& e);
 
-        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<Editor::KeyBindingViewModel>, KeyBindingList);
+        void DeleteKeyChord(const Control::KeyChord& keys);
+        void AttemptAddOrModifyKeyChord(const Editor::KeyChordViewModel& senderVM, winrt::hstring commandID, const Control::KeyChord& newKeys, const Control::KeyChord& oldKeys);
+        void AddCopiedCommand(const Model::Command& newCommand);
+        void RegenerateCommandID(const Model::Command& command);
+
+        Windows::Foundation::Collections::IMap<Model::ShortcutAction, winrt::hstring> AvailableShortcutActionsAndNames();
+        Windows::Foundation::Collections::IMap<winrt::hstring, Model::ShortcutAction> NameToActionMap();
+
+        WINRT_PROPERTY(Windows::Foundation::Collections::IObservableVector<Editor::CommandViewModel>, CommandList);
+        WINRT_OBSERVABLE_PROPERTY(ActionsSubPage, CurrentPage, _propertyChangedHandlers, ActionsSubPage::Base);
 
     private:
-        bool _AutomationPeerAttached{ false };
+        Editor::CommandViewModel _CurrentCommand{ nullptr };
         Model::CascadiaSettings _Settings;
-        Windows::Foundation::Collections::IObservableVector<hstring> _AvailableActionAndArgs;
-        Windows::Foundation::Collections::IMap<hstring, Model::ActionAndArgs> _AvailableActionMap;
+        Windows::Foundation::Collections::IMap<Model::ShortcutAction, winrt::hstring> _AvailableActionsAndNamesMap;
+        Windows::Foundation::Collections::IMap<winrt::hstring, Model::ShortcutAction> _NameToActionMap;
 
-        std::optional<uint32_t> _GetContainerIndexByKeyChord(const Control::KeyChord& keys);
-        void _RegisterEvents(com_ptr<implementation::KeyBindingViewModel>& kbdVM);
+        void _MakeCommandVMsHelper();
+        void _RegisterCmdVMEvents(com_ptr<implementation::CommandViewModel>& cmdVM);
 
-        void _KeyBindingViewModelPropertyChangedHandler(const Windows::Foundation::IInspectable& senderVM, const Windows::UI::Xaml::Data::PropertyChangedEventArgs& args);
-        void _KeyBindingViewModelDeleteKeyBindingHandler(const Editor::KeyBindingViewModel& senderVM, const Control::KeyChord& args);
-        void _KeyBindingViewModelModifyKeyBindingHandler(const Editor::KeyBindingViewModel& senderVM, const Editor::ModifyKeyBindingEventArgs& args);
-        void _KeyBindingViewModelDeleteNewlyAddedKeyBindingHandler(const Editor::KeyBindingViewModel& senderVM, const IInspectable& args);
+        void _CmdVMEditRequestedHandler(const Editor::CommandViewModel& senderVM, const IInspectable& args);
+        void _CmdVMDeleteRequestedHandler(const Editor::CommandViewModel& senderVM, const IInspectable& args);
+        void _CmdVMPropagateColorSchemeRequestedHandler(const IInspectable& sender, const Editor::ArgWrapper& wrapper);
+        void _CmdVMPropagateColorSchemeNamesRequestedHandler(const IInspectable& sender, const Editor::ArgWrapper& wrapper);
     };
 }
 

src/cascadia/TerminalSettingsEditor/ActionsViewModel.idl

@@ -1,60 +1,186 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
+import "EnumEntry.idl";
+import "ColorSchemeViewModel.idl";
+import "MainPage.idl";
+
 namespace Microsoft.Terminal.Settings.Editor
 {
-    runtimeclass ModifyKeyBindingEventArgs
+    [default_interface] runtimeclass ArgsTemplateSelectors : Windows.UI.Xaml.Controls.DataTemplateSelector
+    {
+        ArgsTemplateSelectors();
+
+        Windows.UI.Xaml.DataTemplate Int32Template;
+        Windows.UI.Xaml.DataTemplate Int32OptionalTemplate;
+        Windows.UI.Xaml.DataTemplate UInt32Template;
+        Windows.UI.Xaml.DataTemplate UInt32OptionalTemplate;
+        Windows.UI.Xaml.DataTemplate FloatTemplate;
+        Windows.UI.Xaml.DataTemplate SplitSizeTemplate;
+        Windows.UI.Xaml.DataTemplate StringTemplate;
+        Windows.UI.Xaml.DataTemplate ColorSchemeTemplate;
+        Windows.UI.Xaml.DataTemplate FilePickerTemplate;
+        Windows.UI.Xaml.DataTemplate FolderPickerTemplate;
+        Windows.UI.Xaml.DataTemplate BoolTemplate;
+        Windows.UI.Xaml.DataTemplate BoolOptionalTemplate;
+        Windows.UI.Xaml.DataTemplate EnumTemplate;
+        Windows.UI.Xaml.DataTemplate FlagTemplate;
+        Windows.UI.Xaml.DataTemplate TerminalCoreColorOptionalTemplate;
+        Windows.UI.Xaml.DataTemplate WindowsUIColorOptionalTemplate;
+    }
+
+    [default_interface] runtimeclass EditAction : Windows.UI.Xaml.Controls.Page, Windows.UI.Xaml.Data.INotifyPropertyChanged
+    {
+        EditAction();
+        CommandViewModel ViewModel { get; };
+    }
+
+    runtimeclass NavigateToCommandArgs
+    {
+        CommandViewModel Command { get; };
+        IHostedInWindow WindowRoot { get; };
+    }
+
+    runtimeclass ModifyKeyChordEventArgs
     {
         Microsoft.Terminal.Control.KeyChord OldKeys { get; };
         Microsoft.Terminal.Control.KeyChord NewKeys { get; };
-        String OldActionName { get; };
-        String NewActionName { get; };
     }
 
-    runtimeclass KeyBindingViewModel : Windows.UI.Xaml.Data.INotifyPropertyChanged
+    runtimeclass CommandViewModel : Windows.UI.Xaml.Data.INotifyPropertyChanged
     {
         // Settings Model side
+        String Name;
+        String ID { get; };
+        Boolean IsUserAction { get; };
+        // keybindings
+        IObservableVector<KeyChordViewModel> KeyChordList { get; };
+        // action args
+        ActionArgsViewModel ActionArgsVM { get; };
+
+        // View-model specific
+        String DisplayName { get; };
+        String FirstKeyChordText { get; };
+        String DisplayNameAndKeyChordAutomationPropName { get; };
+
+        // UI side (command list page)
+        void Edit_Click();
+
+        // UI side (edit command page)
+        IObservableVector<String> AvailableShortcutActions { get; };
+        Object ProposedShortcutActionName;
+        void Delete_Click();
+        void AddKeybinding_Click();
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateColorSchemeRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateColorSchemeNamesRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateWindowRootRequested;
+        event Windows.Foundation.TypedEventHandler<Object, Object> FocusContainer;
+
+        // UI side (edit command page, automation property names)
+        String ActionNameTextBoxAutomationPropName { get; };
+        String ShortcutActionComboBoxAutomationPropName { get; };
+        String AdditionalArgumentsControlAutomationPropName { get; };
+    }
+
+    runtimeclass ArgWrapper : Windows.UI.Xaml.Data.INotifyPropertyChanged
+    {
         String Name { get; };
+        String Type { get; };
+        Microsoft.Terminal.Settings.Model.ArgTypeHint TypeHint { get; };
+        Boolean Required { get; };
+        IInspectable Value;
+        IInspectable EnumValue;
+        Windows.Foundation.Collections.IObservableVector<Microsoft.Terminal.Settings.Editor.EnumEntry> EnumList { get; };
+        Windows.Foundation.Collections.IObservableVector<Microsoft.Terminal.Settings.Editor.FlagEntry> FlagList { get; };
+        ColorSchemeViewModel DefaultColorScheme;
+        Windows.Foundation.Collections.IVector<String> ColorSchemeNamesList;
+        IHostedInWindow WindowRoot;
+
+        // unboxing functions
+        String UnboxString(Object value);
+        UInt32 UnboxInt32(Object value);
+        Single UnboxInt32Optional(Object value);
+        UInt32 UnboxUInt32(Object value);
+        Single UnboxUInt32Optional(Object value);
+        Single UnboxFloat(Object value);
+        Boolean UnboxBool(Object value);
+        Windows.Foundation.IReference<Boolean> UnboxBoolOptional(Object value);
+        Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> UnboxTerminalCoreColorOptional(Object value);
+        Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> UnboxWindowsUIColorOptional(Object value);
+
+        // bind back functions
+        void StringBindBack(String newValue);
+        void Int32BindBack(Double newValue);
+        void Int32OptionalBindBack(Double newValue);
+        void UInt32BindBack(Double newValue);
+        void UInt32OptionalBindBack(Double newValue);
+        void FloatBindBack(Double newValue);
+        void BoolOptionalBindBack(Windows.Foundation.IReference<Boolean> newValue);
+        void TerminalCoreColorBindBack(Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> newValue);
+        void WindowsUIColorBindBack(Windows.Foundation.IReference<Microsoft.Terminal.Core.Color> newValue);
+
+        void BrowseForFile_Click(IInspectable sender, Windows.UI.Xaml.RoutedEventArgs args);
+        void BrowseForFolder_Click(IInspectable sender, Windows.UI.Xaml.RoutedEventArgs args);
+
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> ColorSchemeRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> ColorSchemeNamesRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> WindowRootRequested;
+    }
+
+    runtimeclass ActionArgsViewModel : Windows.UI.Xaml.Data.INotifyPropertyChanged
+    {
+        Boolean HasArgs { get; };
+        IObservableVector<ArgWrapper> ArgValues;
+        event Windows.Foundation.TypedEventHandler<Object, Object> WrapperValueChanged;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateColorSchemeRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateColorSchemeNamesRequested;
+        event Windows.Foundation.TypedEventHandler<Object, ArgWrapper> PropagateWindowRootRequested;
+    }
+
+    runtimeclass KeyChordViewModel : Windows.UI.Xaml.Data.INotifyPropertyChanged
+    {
         String KeyChordText { get; };
 
         // UI side
-        Boolean ShowEditButton { get; };
-        Boolean IsInEditMode { get; };
-        Boolean IsNewlyAdded { get; };
         Microsoft.Terminal.Control.KeyChord ProposedKeys;
-        Object ProposedAction;
         Windows.UI.Xaml.Controls.Flyout AcceptChangesFlyout;
-        String EditButtonName { get; };
+        Boolean IsInEditMode { get; };
+        void ToggleEditMode();
+        void AcceptChanges();
+        void CancelChanges();
+        void DeleteKeyChord();
         String CancelButtonName { get; };
         String AcceptButtonName { get; };
         String DeleteButtonName { get; };
-        Windows.UI.Xaml.Media.Brush ContainerBackground { get; };
 
-        void EnterHoverMode();
-        void ExitHoverMode();
-        void ActionGotFocus();
-        void ActionLostFocus();
-        void EditButtonGettingFocus();
-        void EditButtonLosingFocus();
-        IObservableVector<String> AvailableActions { get; };
-        void ToggleEditMode();
-        void AttemptAcceptChanges();
-        void CancelChanges();
-        void DeleteKeyBinding();
-
-        event Windows.Foundation.TypedEventHandler<KeyBindingViewModel, ModifyKeyBindingEventArgs> ModifyKeyBindingRequested;
-        event Windows.Foundation.TypedEventHandler<KeyBindingViewModel, Microsoft.Terminal.Control.KeyChord> DeleteKeyBindingRequested;
+        event Windows.Foundation.TypedEventHandler<KeyChordViewModel, Microsoft.Terminal.Control.KeyChord> AddKeyChordRequested;
+        event Windows.Foundation.TypedEventHandler<KeyChordViewModel, ModifyKeyChordEventArgs> ModifyKeyChordRequested;
+        event Windows.Foundation.TypedEventHandler<KeyChordViewModel, Microsoft.Terminal.Control.KeyChord> DeleteKeyChordRequested;
     }
 
+    enum ActionsSubPage
+    {
+        Base = 0,
+        Edit = 1
+    };
+
     runtimeclass ActionsViewModel : Windows.UI.Xaml.Data.INotifyPropertyChanged
     {
         ActionsViewModel(Microsoft.Terminal.Settings.Model.CascadiaSettings settings);
+        void UpdateSettings(Microsoft.Terminal.Settings.Model.CascadiaSettings settings);
 
-        void OnAutomationPeerAttached();
-        void AddNewKeybinding();
+        void AddNewCommand();
 
-        IObservableVector<KeyBindingViewModel> KeyBindingList { get; };
-        event Windows.Foundation.TypedEventHandler<Object, Object> FocusContainer;
-        event Windows.Foundation.TypedEventHandler<Object, Object> UpdateBackground;
+        ActionsSubPage CurrentPage;
+        Boolean DisplayBadge { get; };
+
+        void AttemptAddOrModifyKeyChord(KeyChordViewModel senderVM, String commandID, Microsoft.Terminal.Control.KeyChord newKeys, Microsoft.Terminal.Control.KeyChord oldKeys);
+        void DeleteKeyChord(Microsoft.Terminal.Control.KeyChord keys);
+        void AddCopiedCommand(Microsoft.Terminal.Settings.Model.Command newCommand);
+        void RegenerateCommandID(Microsoft.Terminal.Settings.Model.Command command);
+
+        CommandViewModel CurrentCommand;
+        IObservableVector<CommandViewModel> CommandList { get; };
+        void CmdListItemClicked(IInspectable sender, Windows.UI.Xaml.Controls.ItemClickEventArgs args);
     }
 }

src/cascadia/TerminalSettingsEditor/ArgsTemplateSelectors.cpp

@@ -0,0 +1,93 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#include "pch.h"
+#include "ArgsTemplateSelectors.h"
+#include "ArgsTemplateSelectors.g.cpp"
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
+{
+    // Method Description:
+    // - This method is called once command palette decides how to render a filtered command.
+    //   Currently we support two ways to render command, that depend on its palette item type:
+    //   - For TabPalette item we render an icon, a title, and some tab-related indicators like progress bar (as defined by TabItemTemplate)
+    //   - All other items are currently rendered with icon, title and optional key-chord (as defined by GeneralItemTemplate)
+    // Arguments:
+    // - item - an instance of filtered command to render
+    // Return Value:
+    // - data template to use for rendering
+    Windows::UI::Xaml::DataTemplate ArgsTemplateSelectors::SelectTemplateCore(const winrt::Windows::Foundation::IInspectable& item, const winrt::Windows::UI::Xaml::DependencyObject& /*container*/)
+    {
+        static constexpr std::pair<
+            std::wstring_view,
+            til::property<Windows::UI::Xaml::DataTemplate> ArgsTemplateSelectors::*>
+            lut[] = {
+                { L"int32_t", &ArgsTemplateSelectors::Int32Template },
+                { L"uint32_t", &ArgsTemplateSelectors::UInt32Template },
+                { L"bool", &ArgsTemplateSelectors::BoolTemplate },
+                { L"Windows::Foundation::IReference<bool>", &ArgsTemplateSelectors::BoolOptionalTemplate },
+                { L"Windows::Foundation::IReference<int32_t>", &ArgsTemplateSelectors::Int32OptionalTemplate },
+                { L"Windows::Foundation::IReference<uint32_t>", &ArgsTemplateSelectors::UInt32OptionalTemplate },
+                { L"SuggestionsSource", &ArgsTemplateSelectors::FlagTemplate },
+                { L"Windows::Foundation::IReference<Control::CopyFormat>", &ArgsTemplateSelectors::FlagTemplate },
+                { L"Windows::Foundation::IReference<Microsoft::Terminal::Core::Color>", &ArgsTemplateSelectors::TerminalCoreColorOptionalTemplate },
+                { L"Windows::Foundation::IReference<Windows::UI::Color>", &ArgsTemplateSelectors::WindowsUIColorOptionalTemplate },
+                { L"Model::ResizeDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Model::FocusDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"SettingsTarget", &ArgsTemplateSelectors::EnumTemplate },
+                { L"MoveTabDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Microsoft::Terminal::Control::ScrollToMarkDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"CommandPaletteLaunchMode", &ArgsTemplateSelectors::EnumTemplate },
+                { L"FindMatchDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Model::DesktopBehavior", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Model::MonitorBehavior", &ArgsTemplateSelectors::EnumTemplate },
+                { L"winrt::Microsoft::Terminal::Control::ClearBufferType", &ArgsTemplateSelectors::EnumTemplate },
+                { L"SelectOutputDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Windows::Foundation::IReference<TabSwitcherMode>", &ArgsTemplateSelectors::EnumTemplate },
+                { L"Model::SplitDirection", &ArgsTemplateSelectors::EnumTemplate },
+                { L"SplitType", &ArgsTemplateSelectors::EnumTemplate },
+            };
+
+        if (const auto argWrapper{ item.try_as<Microsoft::Terminal::Settings::Editor::ArgWrapper>() })
+        {
+            const auto argType = argWrapper.Type();
+            if (argType == L"winrt::hstring")
+            {
+                // string has some special cases - check the tag
+                const auto argTag = argWrapper.TypeHint();
+                switch (argTag)
+                {
+                case Model::ArgTypeHint::ColorScheme:
+                    return ColorSchemeTemplate();
+                case Model::ArgTypeHint::FilePath:
+                    return FilePickerTemplate();
+                case Model::ArgTypeHint::FolderPath:
+                    return FolderPickerTemplate();
+                default:
+                    // no special handling required, just return the normal string template
+                    return StringTemplate();
+                }
+            }
+            else if (argType == L"float")
+            {
+                const auto argTag = argWrapper.TypeHint();
+                switch (argTag)
+                {
+                case Model::ArgTypeHint::SplitSize:
+                    return SplitSizeTemplate();
+                default:
+                    return FloatTemplate();
+                }
+            }
+
+            for (const auto& [type, member] : lut)
+            {
+                if (type == argType)
+                {
+                    return (this->*member)();
+                }
+            }
+        }
+        return nullptr;
+    }
+}

src/cascadia/TerminalSettingsEditor/ArgsTemplateSelectors.h

@@ -0,0 +1,38 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#pragma once
+
+#include "ArgsTemplateSelectors.g.h"
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
+{
+    struct ArgsTemplateSelectors : ArgsTemplateSelectorsT<ArgsTemplateSelectors>
+    {
+        ArgsTemplateSelectors() = default;
+
+        Windows::UI::Xaml::DataTemplate SelectTemplateCore(const winrt::Windows::Foundation::IInspectable&, const winrt::Windows::UI::Xaml::DependencyObject& = nullptr);
+
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> Int32Template;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> Int32OptionalTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> UInt32Template;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> UInt32OptionalTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> FloatTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> SplitSizeTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> StringTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> ColorSchemeTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> FilePickerTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> FolderPickerTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> BoolTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> BoolOptionalTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> EnumTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> FlagTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> TerminalCoreColorOptionalTemplate;
+        til::property<winrt::Windows::UI::Xaml::DataTemplate> WindowsUIColorOptionalTemplate;
+    };
+}
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::factory_implementation
+{
+    BASIC_FACTORY(ArgsTemplateSelectors);
+}

src/cascadia/TerminalSettingsEditor/EditAction.cpp

@@ -0,0 +1,53 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#include "pch.h"
+#include "EditAction.h"
+#include "EditAction.g.cpp"
+#include "LibraryResources.h"
+#include "../TerminalSettingsModel/AllShortcutActions.h"
+
+using namespace winrt::Windows::UI::Xaml;
+using namespace winrt::Windows::UI::Xaml::Navigation;
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
+{
+    EditAction::EditAction()
+    {
+    }
+
+    void EditAction::OnNavigatedTo(const NavigationEventArgs& e)
+    {
+        const auto args = e.Parameter().as<Editor::NavigateToCommandArgs>();
+        _ViewModel = args.Command();
+        _propagateWindowRootRevoker = _ViewModel.PropagateWindowRootRequested(
+            winrt::auto_revoke,
+            [windowRoot = args.WindowRoot()](const IInspectable&, const Editor::ArgWrapper& wrapper) {
+                if (wrapper)
+                {
+                    wrapper.WindowRoot(windowRoot);
+                }
+            });
+        auto weakThis = get_weak();
+        _focusContainerRevoker = _ViewModel.FocusContainer(
+            winrt::auto_revoke,
+            [weakThis](const auto&, const auto& args) {
+                if (auto page{ weakThis.get() })
+                {
+                    if (auto kcVM{ args.try_as<KeyChordViewModel>() })
+                    {
+                        if (const auto& container = page->KeyChordListView().ContainerFromItem(*kcVM))
+                        {
+                            container.as<Controls::ListViewItem>().Focus(FocusState::Programmatic);
+                        }
+                    }
+                }
+            });
+        _layoutUpdatedRevoker = LayoutUpdated(winrt::auto_revoke, [this](auto /*s*/, auto /*e*/) {
+            // Only let this succeed once.
+            _layoutUpdatedRevoker.revoke();
+
+            CommandNameTextBox().Focus(FocusState::Programmatic);
+        });
+    }
+}

src/cascadia/TerminalSettingsEditor/EditAction.h

@@ -0,0 +1,34 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+#pragma once
+
+#include "EditAction.g.h"
+#include "ActionsViewModel.h"
+#include "Utils.h"
+#include "ViewModelHelpers.h"
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
+{
+    struct EditAction : public HasScrollViewer<EditAction>, EditActionT<EditAction>
+    {
+    public:
+        EditAction();
+        void OnNavigatedTo(const winrt::Windows::UI::Xaml::Navigation::NavigationEventArgs& e);
+
+        til::property_changed_event PropertyChanged;
+
+        WINRT_OBSERVABLE_PROPERTY(Editor::CommandViewModel, ViewModel, PropertyChanged.raise, nullptr);
+
+    private:
+        friend struct EditActionT<EditAction>; // for Xaml to bind events
+        winrt::Windows::UI::Xaml::FrameworkElement::LayoutUpdated_revoker _layoutUpdatedRevoker;
+        Editor::CommandViewModel::PropagateWindowRootRequested_revoker _propagateWindowRootRevoker;
+        Editor::CommandViewModel::FocusContainer_revoker _focusContainerRevoker;
+    };
+}
+
+namespace winrt::Microsoft::Terminal::Settings::Editor::factory_implementation
+{
+    BASIC_FACTORY(EditAction);
+}

src/cascadia/TerminalSettingsEditor/EditAction.xaml

@@ -0,0 +1,740 @@
+<!--
+    Copyright (c) Microsoft Corporation. All rights reserved. Licensed under
+    the MIT License. See LICENSE in the project root for license information.
+-->
+<Page x:Class="Microsoft.Terminal.Settings.Editor.EditAction"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+      xmlns:local="using:Microsoft.Terminal.Settings.Editor"
+      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+      xmlns:mtu="using:Microsoft.Terminal.UI"
+      xmlns:muxc="using:Microsoft.UI.Xaml.Controls"
+      mc:Ignorable="d">
+
+    <Page.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="CommonResources.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+            <!--  Theme Dictionary  -->
+            <ResourceDictionary.ThemeDictionaries>
+                <ResourceDictionary x:Key="Dark">
+                    <!--  KeyChordText styles  -->
+                    <Style x:Key="KeyChordBorderStyle"
+                           TargetType="Button">
+                        <Setter Property="BorderThickness" Value="1" />
+                        <Setter Property="CornerRadius" Value="1" />
+                        <Setter Property="Background" Value="{ThemeResource SystemAltMediumLowColor}" />
+                        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
+                        <!--  Override visual states  -->
+                        <Setter Property="Template">
+                            <Setter.Value>
+                                <ControlTemplate TargetType="Button">
+                                    <Grid>
+                                        <!--  Define the appearance of the button  -->
+                                        <Border x:Name="border"
+                                                Background="{TemplateBinding Background}"
+                                                BorderBrush="{TemplateBinding BorderBrush}"
+                                                BorderThickness="{TemplateBinding BorderThickness}"
+                                                CornerRadius="{TemplateBinding CornerRadius}">
+                                            <ContentPresenter HorizontalAlignment="Center"
+                                                              VerticalAlignment="Center" />
+                                        </Border>
+                                        <VisualStateManager.VisualStateGroups>
+                                            <VisualStateGroup x:Name="CommonStates">
+                                                <VisualState x:Name="Normal" />
+                                                <VisualState x:Name="PointerOver">
+                                                    <Storyboard>
+                                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="border"
+                                                                                       Storyboard.TargetProperty="Background">
+                                                            <DiscreteObjectKeyFrame KeyTime="0"
+                                                                                    Value="{ThemeResource SystemControlHighlightAccentRevealBackgroundBrush}" />
+                                                        </ObjectAnimationUsingKeyFrames>
+                                                    </Storyboard>
+                                                </VisualState>
+                                                <VisualState x:Name="Pressed" />
+                                                <VisualState x:Name="Disabled" />
+                                            </VisualStateGroup>
+                                        </VisualStateManager.VisualStateGroups>
+                                    </Grid>
+                                </ControlTemplate>
+                            </Setter.Value>
+                        </Setter>
+                    </Style>
+                    <Style x:Key="KeyChordTextBlockStyle"
+                           TargetType="TextBlock">
+                        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
+                    </Style>
+                </ResourceDictionary>
+                <ResourceDictionary x:Key="Light">
+                    <!--  KeyChordText styles  -->
+                    <Style x:Key="KeyChordBorderStyle"
+                           TargetType="Button">
+                        <Setter Property="BorderThickness" Value="1" />
+                        <Setter Property="CornerRadius" Value="1" />
+                        <Setter Property="Background" Value="{ThemeResource SystemAltMediumLowColor}" />
+                        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
+                        <!--  Override visual states  -->
+                        <Setter Property="Template">
+                            <Setter.Value>
+                                <ControlTemplate TargetType="Button">
+                                    <Grid>
+                                        <!--  Define the appearance of the button  -->
+                                        <Border x:Name="border"
+                                                Background="{TemplateBinding Background}"
+                                                BorderBrush="{TemplateBinding BorderBrush}"
+                                                BorderThickness="{TemplateBinding BorderThickness}"
+                                                CornerRadius="{TemplateBinding CornerRadius}">
+                                            <ContentPresenter HorizontalAlignment="Center"
+                                                              VerticalAlignment="Center" />
+                                        </Border>
+                                        <VisualStateManager.VisualStateGroups>
+                                            <VisualStateGroup x:Name="CommonStates">
+                                                <VisualState x:Name="Normal" />
+                                                <VisualState x:Name="PointerOver">
+                                                    <Storyboard>
+                                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="border"
+                                                                                       Storyboard.TargetProperty="Background">
+                                                            <DiscreteObjectKeyFrame KeyTime="0"
+                                                                                    Value="{ThemeResource SystemControlHighlightAccentRevealBackgroundBrush}" />
+                                                        </ObjectAnimationUsingKeyFrames>
+                                                    </Storyboard>
+                                                </VisualState>
+                                                <VisualState x:Name="Pressed" />
+                                                <VisualState x:Name="Disabled" />
+                                            </VisualStateGroup>
+                                        </VisualStateManager.VisualStateGroups>
+                                    </Grid>
+                                </ControlTemplate>
+                            </Setter.Value>
+                        </Setter>
+                    </Style>
+                    <Style x:Key="KeyChordTextBlockStyle"
+                           TargetType="TextBlock">
+                        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
+                    </Style>
+                </ResourceDictionary>
+                <ResourceDictionary x:Key="HighContrast">
+                    <!--  KeyChordText styles (use XAML defaults for High Contrast theme)  -->
+                    <Style x:Key="KeyChordBorderStyle"
+                           TargetType="Button" />
+                    <Style x:Key="KeyChordTextBlockStyle"
+                           TargetType="TextBlock" />
+                </ResourceDictionary>
+            </ResourceDictionary.ThemeDictionaries>
+
+            <GridLength x:Key="ArgumentNameWidth">148</GridLength>
+
+            <!--  Styles  -->
+            <Style x:Key="KeyBindingContainerStyle"
+                   BasedOn="{StaticResource DefaultListViewItemStyle}"
+                   TargetType="ListViewItem">
+                <Setter Property="Padding" Value="4" />
+                <Setter Property="HorizontalContentAlignment" Value="Stretch" />
+                <Setter Property="XYFocusKeyboardNavigation" Value="Enabled" />
+            </Style>
+            <Style x:Key="KeyChordEditorStyle"
+                   TargetType="local:KeyChordListener">
+                <Setter Property="HorizontalAlignment" Value="Left" />
+                <Setter Property="VerticalAlignment" Value="Center" />
+            </Style>
+            <x:Int32 x:Key="EditButtonSize">32</x:Int32>
+            <x:Double x:Key="EditButtonIconSize">14</x:Double>
+            <Style x:Key="EditButtonStyle"
+                   BasedOn="{StaticResource DefaultButtonStyle}"
+                   TargetType="Button">
+                <Setter Property="Padding" Value="0" />
+                <Setter Property="VerticalAlignment" Value="Center" />
+                <Setter Property="Height" Value="{StaticResource EditButtonSize}" />
+                <Setter Property="Width" Value="{StaticResource EditButtonSize}" />
+            </Style>
+            <Style x:Key="AccentEditButtonStyle"
+                   BasedOn="{StaticResource AccentButtonStyle}"
+                   TargetType="Button">
+                <Setter Property="Padding" Value="4" />
+                <Setter Property="VerticalAlignment" Value="Center" />
+                <Setter Property="Height" Value="{StaticResource EditButtonSize}" />
+                <Setter Property="Width" Value="{StaticResource EditButtonSize}" />
+            </Style>
+
+            <!--  Templates  -->
+            <DataTemplate x:Key="KeyChordTemplate"
+                          x:DataType="local:KeyChordViewModel">
+                <ListViewItem IsTabStop="False"
+                              Style="{StaticResource KeyBindingContainerStyle}">
+                    <Grid Padding="2,0,2,0"
+                          VerticalAlignment="Center">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="Auto" />
+                        </Grid.ColumnDefinitions>
+                        <Button Grid.Column="0"
+                                Click="{x:Bind ToggleEditMode}"
+                                Style="{ThemeResource KeyChordBorderStyle}"
+                                Visibility="{x:Bind mtu:Converters.InvertedBooleanToVisibility(IsInEditMode), Mode=OneWay}">
+                            <TextBlock FontSize="14"
+                                       Style="{ThemeResource KeyChordTextBlockStyle}"
+                                       Text="{x:Bind KeyChordText, Mode=OneWay}"
+                                       TextWrapping="WrapWholeWords" />
+                        </Button>
+                        <Grid Grid.Column="0"
+                              ColumnSpacing="8"
+                              Visibility="{x:Bind IsInEditMode, Mode=OneWay}">
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*" />
+                                <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="Auto" />
+                            </Grid.ColumnDefinitions>
+                            <!--  Edit Mode: Key Chord Listener  -->
+                            <local:KeyChordListener Grid.Column="0"
+                                                    Keys="{x:Bind ProposedKeys, Mode=TwoWay}"
+                                                    Style="{StaticResource KeyChordEditorStyle}" />
+
+                            <!--  Cancel editing the action  -->
+                            <Button x:Uid="Actions_CancelButton"
+                                    Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind CancelButtonName}"
+                                    Click="{x:Bind CancelChanges}"
+                                    Style="{StaticResource EditButtonStyle}">
+                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
+                                          Glyph="&#xE711;" />
+                            </Button>
+
+                            <!--  Accept changes  -->
+                            <Button x:Uid="Actions_AcceptButton"
+                                    Grid.Column="2"
+                                    AutomationProperties.Name="{x:Bind AcceptButtonName}"
+                                    Click="{x:Bind AcceptChanges}"
+                                    Flyout="{x:Bind AcceptChangesFlyout, Mode=OneWay}"
+                                    Style="{StaticResource AccentEditButtonStyle}">
+                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
+                                          Glyph="&#xE8FB;" />
+                            </Button>
+                        </Grid>
+                        <Button Grid.Column="1"
+                                Margin="8,0,0,0"
+                                AutomationProperties.Name="{x:Bind DeleteButtonName}"
+                                Style="{StaticResource DeleteSmallButtonStyle}">
+                            <Button.Content>
+                                <FontIcon FontSize="{StaticResource EditButtonIconSize}"
+                                          Glyph="&#xE74D;" />
+                            </Button.Content>
+                            <Button.Flyout>
+                                <Flyout>
+                                    <StackPanel>
+                                        <TextBlock x:Uid="Actions_DeleteConfirmationMessage"
+                                                   Style="{StaticResource CustomFlyoutTextStyle}" />
+                                        <Button x:Uid="Actions_DeleteConfirmationButton"
+                                                Click="{x:Bind DeleteKeyChord}" />
+                                    </StackPanel>
+                                </Flyout>
+                            </Button.Flyout>
+                        </Button>
+                    </Grid>
+                </ListViewItem>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Adjust Opacity  -->
+            <!--  Currently that is the only Int32 arg, so just clamp the min/max values according to that  -->
+            <DataTemplate x:Key="Int32Template"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="1"
+                                    Maximum="100"
+                                    Minimum="0"
+                                    SmallChange="10"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxInt32(Value), Mode=TwoWay, BindBack=Int32BindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Switch To Tab  -->
+            <DataTemplate x:Key="UInt32Template"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="1"
+                                    Maximum="999"
+                                    Minimum="0"
+                                    SmallChange="1"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxUInt32(Value), Mode=TwoWay, BindBack=UInt32BindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Close Other Tabs  -->
+            <DataTemplate x:Key="UInt32OptionalTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="1"
+                                    Maximum="999"
+                                    Minimum="0"
+                                    SmallChange="1"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxUInt32Optional(Value), Mode=TwoWay, BindBack=UInt32OptionalBindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Split Pane  -->
+            <DataTemplate x:Key="Int32OptionalTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="1"
+                                    Maximum="999"
+                                    Minimum="0"
+                                    SmallChange="1"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxInt32Optional(Value), Mode=TwoWay, BindBack=Int32OptionalBindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Adjust Font Size  -->
+            <DataTemplate x:Key="FloatTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="1"
+                                    Maximum="999"
+                                    Minimum="-999"
+                                    SmallChange="1"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxFloat(Value), Mode=TwoWay, BindBack=FloatBindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Split Pane  -->
+            <DataTemplate x:Key="SplitSizeTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <muxc:NumberBox Grid.Column="1"
+                                    AutomationProperties.Name="{x:Bind Name}"
+                                    LargeChange="0.2"
+                                    Maximum="1"
+                                    Minimum="0"
+                                    SmallChange="0.1"
+                                    Style="{StaticResource NumberBoxSettingStyle}"
+                                    Value="{x:Bind UnboxFloat(Value), Mode=TwoWay, BindBack=FloatBindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Send Input  -->
+            <DataTemplate x:Key="StringTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto"
+                                          MinWidth="196" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <TextBox Grid.Column="1"
+                             AutomationProperties.Name="{x:Bind Name}"
+                             Text="{x:Bind UnboxString(Value), Mode=TwoWay, BindBack=StringBindBack}"
+                             TextWrapping="Wrap" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Set Color Scheme  -->
+            <DataTemplate x:Key="ColorSchemeTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <ComboBox Grid.Column="1"
+                              AutomationProperties.Name="{x:Bind Name}"
+                              ItemTemplate="{StaticResource EnumComboBoxTemplate}"
+                              ItemsSource="{x:Bind EnumList, Mode=OneWay}"
+                              SelectedItem="{x:Bind EnumValue, Mode=TwoWay}"
+                              Style="{StaticResource ComboBoxSettingStyle}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Export Buffer  -->
+            <DataTemplate x:Key="FilePickerTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="*"
+                                          MinWidth="196" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <TextBox Grid.Column="1"
+                             AutomationProperties.Name="{x:Bind Name}"
+                             Text="{x:Bind UnboxString(Value), Mode=TwoWay, BindBack=StringBindBack}"
+                             TextWrapping="Wrap" />
+                    <Button x:Uid="Actions_Browse"
+                            Grid.Column="2"
+                            Click="{x:Bind BrowseForFile_Click}"
+                            Style="{StaticResource BrowseButtonStyle}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: New Tab  -->
+            <DataTemplate x:Key="FolderPickerTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="*"
+                                          MinWidth="196" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <TextBox Grid.Column="1"
+                             AutomationProperties.Name="{x:Bind Name}"
+                             Text="{x:Bind UnboxString(Value), Mode=TwoWay, BindBack=StringBindBack}"
+                             TextWrapping="Wrap" />
+                    <Button x:Uid="Actions_Browse"
+                            Grid.Column="2"
+                            Click="{x:Bind BrowseForFolder_Click}"
+                            Style="{StaticResource BrowseButtonStyle}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Set Focus Mode  -->
+            <DataTemplate x:Key="BoolTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <ToggleSwitch Grid.Column="1"
+                                  AutomationProperties.Name="{x:Bind Name}"
+                                  IsOn="{x:Bind UnboxBool(Value), Mode=TwoWay, BindBack=BoolOptionalBindBack}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Split Pane  -->
+            <DataTemplate x:Key="BoolOptionalTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <CheckBox Grid.Column="1"
+                              AutomationProperties.Name="{x:Bind Name}"
+                              IsChecked="{x:Bind UnboxBoolOptional(Value), Mode=TwoWay, BindBack=BoolOptionalBindBack}"
+                              IsThreeState="True" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Resize Pane  -->
+            <DataTemplate x:Key="EnumComboBoxTemplate"
+                          x:DataType="local:EnumEntry">
+                <TextBlock Text="{x:Bind EnumName, Mode=OneWay}" />
+            </DataTemplate>
+
+            <DataTemplate x:Key="EnumTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <ComboBox Grid.Column="1"
+                              AutomationProperties.Name="{x:Bind Name}"
+                              ItemTemplate="{StaticResource EnumComboBoxTemplate}"
+                              ItemsSource="{x:Bind EnumList, Mode=OneWay}"
+                              SelectedItem="{x:Bind EnumValue, Mode=TwoWay}"
+                              Style="{StaticResource ComboBoxSettingStyle}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Copy Text  -->
+            <DataTemplate x:Key="FlagItemTemplate"
+                          x:DataType="local:FlagEntry">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="40" />
+                        <ColumnDefinition Width="*" />
+                    </Grid.ColumnDefinitions>
+                    <CheckBox Grid.Column="0"
+                              AutomationProperties.Name="{x:Bind FlagName}"
+                              IsChecked="{x:Bind IsSet, Mode=TwoWay}" />
+                    <TextBlock Grid.Column="1"
+                               Padding="0,0,0,4"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind FlagName, Mode=OneWay}" />
+                </Grid>
+            </DataTemplate>
+
+            <DataTemplate x:Key="FlagTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="*" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <ItemsControl Grid.Column="1"
+                                  Margin="0"
+                                  HorizontalAlignment="Left"
+                                  AutomationProperties.Name="{x:Bind Name}"
+                                  ItemTemplate="{StaticResource FlagItemTemplate}"
+                                  ItemsSource="{x:Bind FlagList, Mode=OneWay}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Add Mark  -->
+            <DataTemplate x:Key="TerminalCoreColorOptionalTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <local:NullableColorPicker x:Uid="Actions_NullableColorPicker"
+                                               Grid.Column="1"
+                                               AutomationProperties.Name="{x:Bind Name}"
+                                               ColorSchemeVM="{x:Bind DefaultColorScheme, Mode=OneWay}"
+                                               CurrentColor="{x:Bind UnboxTerminalCoreColorOptional(Value), Mode=TwoWay, BindBack=TerminalCoreColorBindBack}"
+                                               NullColorPreview="{x:Bind DefaultColorScheme.ForegroundColor.Color, Mode=OneWay}" />
+                </Grid>
+            </DataTemplate>
+
+            <!--  Example shortcut action to test this template: Set Tab Color  -->
+            <DataTemplate x:Key="WindowsUIColorOptionalTemplate"
+                          x:DataType="local:ArgWrapper">
+                <Grid Margin="0,4,0,4"
+                      ColumnSpacing="8">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="{StaticResource ArgumentNameWidth}" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+                    <TextBlock Grid.Column="0"
+                               VerticalAlignment="Center"
+                               Text="{x:Bind Name}"
+                               TextWrapping="WrapWholeWords" />
+                    <local:NullableColorPicker x:Uid="Actions_NullableColorPicker"
+                                               Grid.Column="1"
+                                               AutomationProperties.Name="{x:Bind Name}"
+                                               ColorSchemeVM="{x:Bind DefaultColorScheme, Mode=OneWay}"
+                                               CurrentColor="{x:Bind UnboxWindowsUIColorOptional(Value), Mode=TwoWay, BindBack=WindowsUIColorBindBack}"
+                                               NullColorPreview="{x:Bind DefaultColorScheme.ForegroundColor.Color, Mode=OneWay}" />
+                </Grid>
+            </DataTemplate>
+
+            <local:ArgsTemplateSelectors x:Key="ArgsTemplateSelector"
+                                         BoolOptionalTemplate="{StaticResource BoolOptionalTemplate}"
+                                         BoolTemplate="{StaticResource BoolTemplate}"
+                                         ColorSchemeTemplate="{StaticResource ColorSchemeTemplate}"
+                                         EnumTemplate="{StaticResource EnumTemplate}"
+                                         FilePickerTemplate="{StaticResource FilePickerTemplate}"
+                                         FlagTemplate="{StaticResource FlagTemplate}"
+                                         FloatTemplate="{StaticResource FloatTemplate}"
+                                         FolderPickerTemplate="{StaticResource FolderPickerTemplate}"
+                                         Int32OptionalTemplate="{StaticResource Int32OptionalTemplate}"
+                                         Int32Template="{StaticResource Int32Template}"
+                                         SplitSizeTemplate="{StaticResource SplitSizeTemplate}"
+                                         StringTemplate="{StaticResource StringTemplate}"
+                                         TerminalCoreColorOptionalTemplate="{StaticResource TerminalCoreColorOptionalTemplate}"
+                                         UInt32OptionalTemplate="{StaticResource UInt32OptionalTemplate}"
+                                         UInt32Template="{StaticResource UInt32Template}"
+                                         WindowsUIColorOptionalTemplate="{StaticResource WindowsUIColorOptionalTemplate}" />
+
+        </ResourceDictionary>
+    </Page.Resources>
+
+    <Border MaxWidth="{StaticResource StandardControlMaxWidth}"
+            Margin="{StaticResource SettingStackMargin}">
+        <Grid MaxWidth="600"
+              Margin="{StaticResource SettingStackMargin}"
+              HorizontalAlignment="Left"
+              ColumnSpacing="16"
+              RowSpacing="8">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="*" />
+            </Grid.ColumnDefinitions>
+            <TextBlock x:Uid="Actions_Name"
+                       Grid.Row="0"
+                       Grid.Column="0"
+                       VerticalAlignment="Center" />
+            <TextBox x:Name="CommandNameTextBox"
+                     Grid.Row="0"
+                     Grid.Column="1"
+                     Width="300"
+                     HorizontalAlignment="Left"
+                     AutomationProperties.Name="{x:Bind ViewModel.ActionNameTextBoxAutomationPropName}"
+                     PlaceholderText="{x:Bind ViewModel.DisplayName, Mode=OneWay}"
+                     Text="{x:Bind ViewModel.Name, Mode=TwoWay}" />
+            <TextBlock x:Uid="Actions_ShortcutAction"
+                       Grid.Row="1"
+                       Grid.Column="0"
+                       VerticalAlignment="Center" />
+            <ComboBox Grid.Row="1"
+                      Grid.Column="1"
+                      VerticalAlignment="Center"
+                      AutomationProperties.Name="{x:Bind ViewModel.ShortcutActionComboBoxAutomationPropName}"
+                      ItemsSource="{x:Bind ViewModel.AvailableShortcutActions, Mode=OneWay}"
+                      SelectedItem="{x:Bind ViewModel.ProposedShortcutActionName, Mode=TwoWay}" />
+            <TextBlock x:Uid="Actions_Arguments"
+                       Grid.Row="2"
+                       Grid.Column="0"
+                       VerticalAlignment="Center"
+                       Visibility="{x:Bind ViewModel.ActionArgsVM.HasArgs, Mode=OneWay}" />
+            <ItemsControl Grid.Row="2"
+                          Grid.Column="1"
+                          AutomationProperties.Name="{x:Bind ViewModel.AdditionalArgumentsControlAutomationPropName}"
+                          IsTabStop="False"
+                          ItemTemplateSelector="{StaticResource ArgsTemplateSelector}"
+                          ItemsSource="{x:Bind ViewModel.ActionArgsVM.ArgValues, Mode=OneWay}" />
+            <TextBlock x:Uid="Actions_Keybindings"
+                       Grid.Row="3"
+                       Grid.Column="0"
+                       VerticalAlignment="Center" />
+            <ListView x:Name="KeyChordListView"
+                      x:Uid="Actions_KeyBindingsListView"
+                      Grid.Row="3"
+                      Grid.Column="1"
+                      ItemTemplate="{StaticResource KeyChordTemplate}"
+                      ItemsSource="{x:Bind ViewModel.KeyChordList, Mode=OneWay}"
+                      SelectionMode="None">
+                <ListView.Header>
+                    <Button Click="{x:Bind ViewModel.AddKeybinding_Click}">
+                        <TextBlock x:Uid="Actions_AddKeyChord" />
+                    </Button>
+                </ListView.Header>
+            </ListView>
+            <Button Grid.Row="4"
+                    Grid.Column="0"
+                    IsEnabled="{x:Bind ViewModel.IsUserAction, Mode=OneWay}"
+                    Style="{StaticResource DeleteButtonStyle}">
+                <Button.Content>
+                    <StackPanel Orientation="Horizontal">
+                        <FontIcon FontSize="{StaticResource StandardIconSize}"
+                                  Glyph="&#xE74D;" />
+                        <TextBlock x:Uid="Actions_DeleteButton2"
+                                   Style="{StaticResource IconButtonTextBlockStyle}" />
+                    </StackPanel>
+                </Button.Content>
+                <Button.Flyout>
+                    <Flyout>
+                        <StackPanel>
+                            <TextBlock x:Uid="Actions_CommandDeleteConfirmationMessage"
+                                       Style="{StaticResource CustomFlyoutTextStyle}" />
+                            <Button x:Uid="Actions_CommandDeleteConfirmationButton"
+                                    Click="{x:Bind ViewModel.Delete_Click}" />
+                        </StackPanel>
+                    </Flyout>
+                </Button.Flyout>
+            </Button>
+        </Grid>
+    </Border>
+</Page>

src/cascadia/TerminalSettingsEditor/EnumEntry.h

@@ -17,6 +17,7 @@ Author(s):
 #pragma once
 
 #include "EnumEntry.g.h"
+#include "FlagEntry.g.h"
 #include "Utils.h"
 
 namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
@@ -26,7 +27,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
     {
         bool operator()(const Editor::EnumEntry& lhs, const Editor::EnumEntry& rhs) const
         {
-            return lhs.EnumValue().as<T>() < rhs.EnumValue().as<T>();
+            return lhs.IntValue() < rhs.IntValue();
         }
     };
 
@@ -35,7 +36,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
     {
         bool operator()(const Editor::EnumEntry& lhs, const Editor::EnumEntry& rhs) const
         {
-            return lhs.EnumValue().as<T>() > rhs.EnumValue().as<T>();
+            return lhs.IntValue() > rhs.IntValue();
         }
     };
 
@@ -46,6 +47,11 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
             _EnumName{ enumName },
             _EnumValue{ enumValue } {}
 
+        EnumEntry(const winrt::hstring enumName, const winrt::Windows::Foundation::IInspectable& enumValue, const int32_t intValue) :
+            _EnumName{ enumName },
+            _EnumValue{ enumValue },
+            _IntValue{ intValue } {}
+
         hstring ToString()
         {
             return EnumName();
@@ -54,5 +60,50 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         til::property_changed_event PropertyChanged;
         WINRT_OBSERVABLE_PROPERTY(winrt::hstring, EnumName, PropertyChanged.raise);
         WINRT_OBSERVABLE_PROPERTY(winrt::Windows::Foundation::IInspectable, EnumValue, PropertyChanged.raise);
+        WINRT_PROPERTY(int32_t, IntValue, 0);
+    };
+
+    template<typename T>
+    struct FlagEntryComparator
+    {
+        bool operator()(const Editor::FlagEntry& lhs, const Editor::FlagEntry& rhs) const
+        {
+            return lhs.FlagValue().as<T>() < rhs.FlagValue().as<T>();
+        }
+    };
+
+    template<typename T>
+    struct FlagEntryReverseComparator
+    {
+        bool operator()(const Editor::FlagEntry& lhs, const Editor::FlagEntry& rhs) const
+        {
+            return lhs.FlagValue().as<T>() > rhs.FlagValue().as<T>();
+        }
+    };
+
+    struct FlagEntry : FlagEntryT<FlagEntry>
+    {
+    public:
+        FlagEntry(const winrt::hstring flagName, const winrt::Windows::Foundation::IInspectable& flagValue, const bool isSet) :
+            _FlagName{ flagName },
+            _FlagValue{ flagValue },
+            _IsSet{ isSet } {}
+
+        FlagEntry(const winrt::hstring flagName, const winrt::Windows::Foundation::IInspectable& flagValue, const bool isSet, const int32_t intValue) :
+            _FlagName{ flagName },
+            _FlagValue{ flagValue },
+            _IsSet{ isSet },
+            _IntValue{ intValue } {}
+
+        hstring ToString()
+        {
+            return FlagName();
+        }
+
+        til::property_changed_event PropertyChanged;
+        WINRT_OBSERVABLE_PROPERTY(winrt::hstring, FlagName, PropertyChanged.raise);
+        WINRT_OBSERVABLE_PROPERTY(winrt::Windows::Foundation::IInspectable, FlagValue, PropertyChanged.raise);
+        WINRT_OBSERVABLE_PROPERTY(bool, IsSet, PropertyChanged.raise);
+        WINRT_PROPERTY(int32_t, IntValue, 0);
     };
 }

src/cascadia/TerminalSettingsEditor/EnumEntry.idl

@@ -7,5 +7,14 @@ namespace Microsoft.Terminal.Settings.Editor
     {
         String EnumName { get; };
         IInspectable EnumValue { get; };
+        Int32 IntValue { get; };
+    }
+
+    [default_interface] runtimeclass FlagEntry : Windows.UI.Xaml.Data.INotifyPropertyChanged, Windows.Foundation.IStringable
+    {
+        String FlagName { get; };
+        IInspectable FlagValue { get; };
+        Int32 IntValue { get; };
+        Boolean IsSet;
     }
 }

src/cascadia/TerminalSettingsEditor/MainPage.cpp

@@ -116,6 +116,24 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
             }
         });
 
+        _actionsVM = winrt::make<ActionsViewModel>(_settingsClone);
+        _actionsViewModelChangedRevoker = _actionsVM.PropertyChanged(winrt::auto_revoke, [=](auto&&, const PropertyChangedEventArgs& args) {
+            const auto settingName{ args.PropertyName() };
+            if (settingName == L"CurrentPage")
+            {
+                if (_actionsVM.CurrentPage() == ActionsSubPage::Edit)
+                {
+                    contentFrame().Navigate(xaml_typename<Editor::EditAction>(), winrt::make<implementation::NavigateToCommandArgs>(_actionsVM.CurrentCommand(), *this));
+                    const auto crumb = winrt::make<Breadcrumb>(box_value(actionsTag), RS_(L"Nav_EditAction/Content"), BreadcrumbSubPage::Actions_Edit);
+                    _breadcrumbs.Append(crumb);
+                }
+                else if (_actionsVM.CurrentPage() == ActionsSubPage::Base)
+                {
+                    _Navigate(winrt::hstring{ actionsTag }, BreadcrumbSubPage::None);
+                }
+            }
+        });
+
         auto extensionsVMImpl = winrt::make_self<ExtensionsViewModel>(_settingsClone, _colorSchemesPageVM);
         extensionsVMImpl->NavigateToProfileRequested({ this, &MainPage::_NavigateToProfileHandler });
         extensionsVMImpl->NavigateToColorSchemeRequested({ this, &MainPage::_NavigateToColorSchemeHandler });
@@ -192,6 +210,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         _InitializeProfilesList();
         // Update the Nav State with the new version of the settings
         _colorSchemesPageVM.UpdateSettings(_settingsClone);
+        _actionsVM.UpdateSettings(_settingsClone);
         _newTabMenuPageVM.UpdateSettings(_settingsClone);
         _extensionsVM.UpdateSettings(_settingsClone, _colorSchemesPageVM);
 
@@ -512,9 +531,14 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         }
         else if (clickedItemTag == actionsTag)
         {
-            contentFrame().Navigate(xaml_typename<Editor::Actions>(), winrt::make<ActionsViewModel>(_settingsClone));
             const auto crumb = winrt::make<Breadcrumb>(box_value(clickedItemTag), RS_(L"Nav_Actions/Content"), BreadcrumbSubPage::None);
             _breadcrumbs.Append(crumb);
+            contentFrame().Navigate(xaml_typename<Editor::Actions>(), _actionsVM);
+
+            if (subPage == BreadcrumbSubPage::Actions_Edit && _actionsVM.CurrentCommand() != nullptr)
+            {
+                _actionsVM.CurrentPage(ActionsSubPage::Edit);
+            }
         }
         else if (clickedItemTag == newTabMenuTag)
         {

src/cascadia/TerminalSettingsEditor/MainPage.h

@@ -44,6 +44,7 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
 
         Windows::Foundation::Collections::IObservableVector<IInspectable> Breadcrumbs() noexcept;
         Editor::ExtensionsViewModel ExtensionsVM() const noexcept { return _extensionsVM; }
+        Editor::ActionsViewModel ActionsVM() const noexcept { return _actionsVM; }
 
         static void RefreshGithubAuthStatus(const winrt::hstring& message);
         static winrt::event_token GithubAuthCompleted(const GithubAuthCompletedHandler& handler);
@@ -86,11 +87,13 @@ namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
         void _MoveXamlParsedNavItemsIntoItemSource();
 
         winrt::Microsoft::Terminal::Settings::Editor::ColorSchemesPageViewModel _colorSchemesPageVM{ nullptr };
+        winrt::Microsoft::Terminal::Settings::Editor::ActionsViewModel _actionsVM{ nullptr };
         winrt::Microsoft::Terminal::Settings::Editor::NewTabMenuViewModel _newTabMenuPageVM{ nullptr };
         winrt::Microsoft::Terminal::Settings::Editor::ExtensionsViewModel _extensionsVM{ nullptr };
 
         Windows::UI::Xaml::Data::INotifyPropertyChanged::PropertyChanged_revoker _profileViewModelChangedRevoker;
         Windows::UI::Xaml::Data::INotifyPropertyChanged::PropertyChanged_revoker _colorSchemesPageViewModelChangedRevoker;
+        Windows::UI::Xaml::Data::INotifyPropertyChanged::PropertyChanged_revoker _actionsViewModelChangedRevoker;
         Windows::UI::Xaml::Data::INotifyPropertyChanged::PropertyChanged_revoker _ntmViewModelChangedRevoker;
         Windows::UI::Xaml::Data::INotifyPropertyChanged::PropertyChanged_revoker _extensionsViewModelChangedRevoker;
     };

src/cascadia/TerminalSettingsEditor/MainPage.idl

@@ -2,6 +2,7 @@
 // Licensed under the MIT license.
 
 import "Extensions.idl";
+import "ActionsViewModel.idl";
 
 namespace Microsoft.Terminal.Settings.Editor
 {
@@ -24,6 +25,7 @@ namespace Microsoft.Terminal.Settings.Editor
         Profile_Terminal,
         Profile_Advanced,
         ColorSchemes_Edit,
+        Actions_Edit,
         NewTabMenu_Folder,
         Extensions_Extension
     };
@@ -50,6 +52,7 @@ namespace Microsoft.Terminal.Settings.Editor
 
         Windows.Foundation.Collections.IObservableVector<IInspectable> Breadcrumbs { get; };
         ExtensionsViewModel ExtensionsVM { get; };
+        ActionsViewModel ActionsVM { get; };
 
         Windows.UI.Xaml.Media.Brush BackgroundBrush { get; };
 

src/cascadia/TerminalSettingsEditor/MainPage.xaml

@@ -149,6 +149,10 @@
                 <muxc:NavigationViewItem.Icon>
                     <FontIcon Glyph="&#xE765;" />
                 </muxc:NavigationViewItem.Icon>
+                <muxc:NavigationViewItem.InfoBadge>
+                    <muxc:InfoBadge Style="{StaticResource NewInfoBadge}"
+                                    Visibility="{x:Bind ActionsVM.DisplayBadge, Mode=OneWay}" />
+                </muxc:NavigationViewItem.InfoBadge>
             </muxc:NavigationViewItem>
 
             <muxc:NavigationViewItem x:Uid="Nav_NewTabMenu"

src/cascadia/TerminalSettingsEditor/Microsoft.Terminal.Settings.Editor.vcxproj

@@ -45,6 +45,13 @@
     <ClInclude Include="Actions.h">
       <DependentUpon>Actions.xaml</DependentUpon>
     </ClInclude>
+    <ClInclude Include="ArgsTemplateSelectors.h">
+      <DependentUpon>ActionsViewModel.idl</DependentUpon>
+      <SubType>Code</SubType>
+    </ClInclude>
+    <ClInclude Include="EditAction.h">
+      <DependentUpon>EditAction.xaml</DependentUpon>
+    </ClInclude>
     <ClInclude Include="AddProfile.h">
       <DependentUpon>AddProfile.xaml</DependentUpon>
     </ClInclude>
@@ -175,6 +182,9 @@
     <Page Include="Actions.xaml">
       <SubType>Designer</SubType>
     </Page>
+    <Page Include="EditAction.xaml">
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="AddProfile.xaml">
       <SubType>Designer</SubType>
     </Page>
@@ -248,6 +258,13 @@
     <ClCompile Include="Actions.cpp">
       <DependentUpon>Actions.xaml</DependentUpon>
     </ClCompile>
+    <ClCompile Include="ArgsTemplateSelectors.cpp">
+      <DependentUpon>ActionsViewModel.idl</DependentUpon>
+      <SubType>Code</SubType>
+    </ClCompile>
+    <ClCompile Include="EditAction.cpp">
+      <DependentUpon>EditAction.xaml</DependentUpon>
+    </ClCompile>
     <ClCompile Include="AddProfile.cpp">
       <DependentUpon>AddProfile.xaml</DependentUpon>
     </ClCompile>

src/cascadia/TerminalSettingsEditor/Microsoft.Terminal.Settings.Editor.vcxproj.filters

@@ -52,6 +52,7 @@
     <Page Include="Appearances.xaml" />
     <Page Include="Rendering.xaml" />
     <Page Include="Actions.xaml" />
+    <Page Include="EditAction.xaml" />
     <Page Include="SettingContainerStyle.xaml" />
     <Page Include="AddProfile.xaml" />
     <Page Include="KeyChordListener.xaml" />

src/cascadia/TerminalSettingsEditor/Resources/en-US/Resources.resw

@@ -854,7 +854,11 @@
   </data>
   <data name="Nav_Actions.Content" xml:space="preserve">
     <value>Actions</value>
-    <comment>Header for the "actions" menu item. This navigates to a page that lets you see and modify commands, key bindings, and actions that can be done in the app.</comment>
+    <comment>Header for the "actions" menu item. This navigates to a page that lets you see the available commands in the app.</comment>
+  </data>
+  <data name="Nav_EditAction.Content" xml:space="preserve">
+    <value>Edit Action...</value>
+    <comment>Header for the "edit action" page. This is the page that lets you modify a specific command and its key bindings.</comment>
   </data>
   <data name="Nav_Extensions.Content" xml:space="preserve">
     <value>Extensions</value>
@@ -1972,6 +1976,42 @@
     <value>Delete the unfocused appearance for this profile.</value>
     <comment>A description for what the delete unfocused appearance button does.</comment>
   </data>
+  <data name="Actions_Disclaimer.Content" xml:space="preserve">
+    <value>Learn more about actions</value>
+    <comment>Disclaimer presented at the top of the actions page to redirect the user to documentation regarding actions.</comment>
+  </data>
+  <data name="Actions_DeleteButton2.Text" xml:space="preserve">
+    <value>Delete action</value>
+    <comment>Button label that deletes the selected action.</comment>
+  </data>
+  <data name="Actions_Name.Text" xml:space="preserve">
+    <value>Action name</value>
+    <comment>Label for the text box that edits the action name.</comment>
+  </data>
+  <data name="Actions_NameEntryBox.PlaceholderText" xml:space="preserve">
+    <value>Action name</value>
+    <comment>Placeholder text for the text box where the user can edit the action name.</comment>
+  </data>
+  <data name="Actions_ShortcutAction.Text" xml:space="preserve">
+    <value>Action type</value>
+    <comment>Label for the combo box that edits the action type.</comment>
+  </data>
+  <data name="Actions_KeyBindingsListView.[using:Windows.UI.Xaml.Automation]AutomationProperties.Name" xml:space="preserve">
+    <value>Keybindings</value>
+    <comment>Name for a control which contains the list of keybindings for the current command.</comment>
+  </data>
+  <data name="Actions_Arguments.Text" xml:space="preserve">
+    <value>Additional arguments</value>
+    <comment>Label for the list of editable arguments for the currently selected action.</comment>
+  </data>
+  <data name="Actions_Keybindings.Text" xml:space="preserve">
+    <value>Keybindings</value>
+    <comment>Label for the list of editable keybindings for the current command.</comment>
+  </data>
+  <data name="Actions_AddKeyChord.Text" xml:space="preserve">
+    <value>Add keybinding</value>
+    <comment>Button label that adds a keybinding to the current action.</comment>
+  </data>
   <data name="Actions_DeleteConfirmationButton.Content" xml:space="preserve">
     <value>Yes, delete key binding</value>
     <comment>Button label that confirms deletion of a key binding entry.</comment>
@@ -1980,6 +2020,14 @@
     <value>Are you sure you want to delete this key binding?</value>
     <comment>Confirmation message displayed when the user attempts to delete a key binding entry.</comment>
   </data>
+  <data name="Actions_CommandDeleteConfirmationButton.Content" xml:space="preserve">
+    <value>Yes, delete action</value>
+    <comment>Button label that confirms deletion of an action.</comment>
+  </data>
+  <data name="Actions_CommandDeleteConfirmationMessage.Text" xml:space="preserve">
+    <value>Are you sure you want to delete this action?</value>
+    <comment>Confirmation message displayed when the user attempts to delete an action.</comment>
+  </data>
   <data name="Actions_InvalidKeyChordMessage" xml:space="preserve">
     <value>Invalid key chord. Please enter a valid key chord.</value>
     <comment>Error message displayed when an invalid key chord is input by the user.</comment>
@@ -2024,6 +2072,278 @@
     <value>Action</value>
     <comment>Label for a control that sets the action of a key binding.</comment>
   </data>
+  <data name="Actions_NullEnumValue" xml:space="preserve">
+    <value>Use global setting</value>
+    <comment>An option to choose from for nullable enums. Clears the enum value.</comment>
+  </data>
+  <data name="Actions_CopyFormatHtml.Content" xml:space="preserve">
+    <value>HTML</value>
+    <comment>An option to choose from for the "copy format". Copies content in HTML format.</comment>
+  </data>
+  <data name="Actions_CopyFormatRtf.Content" xml:space="preserve">
+    <value>RTF</value>
+    <comment>An option to choose from for the "copy format". Copies content in Rich Text Format (RTF).</comment>
+  </data>
+  <data name="Actions_SplitDirectionAuto.Content" xml:space="preserve">
+    <value>Automatic</value>
+    <comment>An option to choose from for the "split direction". Automatically determines the split direction.</comment>
+  </data>
+  <data name="Actions_SplitDirectionUp.Content" xml:space="preserve">
+    <value>Up</value>
+    <comment>An option to choose from for the "split direction". Splits upward.</comment>
+  </data>
+  <data name="Actions_SplitDirectionRight.Content" xml:space="preserve">
+    <value>Right</value>
+    <comment>An option to choose from for the "split direction". Splits to the right.</comment>
+  </data>
+  <data name="Actions_SplitDirectionDown.Content" xml:space="preserve">
+    <value>Down</value>
+    <comment>An option to choose from for the "split direction". Splits downward.</comment>
+  </data>
+  <data name="Actions_SplitDirectionLeft.Content" xml:space="preserve">
+    <value>Left</value>
+    <comment>An option to choose from for the "split direction". Splits to the left.</comment>
+  </data>
+  <data name="Actions_SplitDirectionVertical.Content" xml:space="preserve">
+    <value>Vertical</value>
+    <comment>An option to choose from for the "split direction". Splits vertically.</comment>
+  </data>
+  <data name="Actions_SplitDirectionHorizontal.Content" xml:space="preserve">
+    <value>Horizontal</value>
+    <comment>An option to choose from for the "split direction". Splits horizontally.</comment>
+  </data>
+  <data name="Actions_SplitTypeManual.Content" xml:space="preserve">
+    <value>Manual</value>
+    <comment>An option to choose from for the "split type". Creates a manual split.</comment>
+  </data>
+  <data name="Actions_SplitTypeDuplicate.Content" xml:space="preserve">
+    <value>Duplicate</value>
+    <comment>An option to choose from for the "split type". Creates a split by duplicating the current session.</comment>
+  </data>
+  <data name="Actions_ResizeDirectionNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the "resize direction". None option.</comment>
+  </data>
+  <data name="Actions_ResizeDirectionLeft.Content" xml:space="preserve">
+    <value>Left</value>
+    <comment>An option to choose from for the "resize direction". Left option.</comment>
+  </data>
+  <data name="Actions_ResizeDirectionRight.Content" xml:space="preserve">
+    <value>Right</value>
+    <comment>An option to choose from for the "resize direction". Right option.</comment>
+  </data>
+  <data name="Actions_ResizeDirectionUp.Content" xml:space="preserve">
+    <value>Up</value>
+    <comment>An option to choose from for the "resize direction". Up option.</comment>
+  </data>
+  <data name="Actions_ResizeDirectionDown.Content" xml:space="preserve">
+    <value>Down</value>
+    <comment>An option to choose from for the "resize direction". Down option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the "focus direction". None option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionLeft.Content" xml:space="preserve">
+    <value>Left</value>
+    <comment>An option to choose from for the "focus direction". Left option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionRight.Content" xml:space="preserve">
+    <value>Right</value>
+    <comment>An option to choose from for the "focus direction". Right option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionUp.Content" xml:space="preserve">
+    <value>Up</value>
+    <comment>An option to choose from for the "focus direction". Up option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionDown.Content" xml:space="preserve">
+    <value>Down</value>
+    <comment>An option to choose from for the "focus direction". Down option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionPrevious.Content" xml:space="preserve">
+    <value>Previous</value>
+    <comment>An option to choose from for the "focus direction". Previous option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionPreviousInOrder.Content" xml:space="preserve">
+    <value>Previous In Order</value>
+    <comment>An option to choose from for the "focus direction". Previous in order option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionNextInOrder.Content" xml:space="preserve">
+    <value>Next In Order</value>
+    <comment>An option to choose from for the "focus direction". Next in order option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionFirst.Content" xml:space="preserve">
+    <value>First</value>
+    <comment>An option to choose from for the "focus direction". First option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionParent.Content" xml:space="preserve">
+    <value>Parent</value>
+    <comment>An option to choose from for the "focus direction". Parent option.</comment>
+  </data>
+  <data name="Actions_FocusDirectionChild.Content" xml:space="preserve">
+    <value>Child</value>
+    <comment>An option to choose from for the "focus direction". Child option.</comment>
+  </data>
+  <data name="Actions_SettingsTargetSettingsFile.Content" xml:space="preserve">
+    <value>Settings File</value>
+    <comment>An option to choose from for the "settings target". Targets the settings file.</comment>
+  </data>
+  <data name="Actions_SettingsTargetDefaultsFile.Content" xml:space="preserve">
+    <value>Defaults File</value>
+    <comment>An option to choose from for the "settings target". Targets the defaults file.</comment>
+  </data>
+  <data name="Actions_SettingsTargetAllFiles.Content" xml:space="preserve">
+    <value>All Files</value>
+    <comment>An option to choose from for the "settings target". Targets all files.</comment>
+  </data>
+  <data name="Actions_SettingsTargetSettingsUI.Content" xml:space="preserve">
+    <value>Settings UI</value>
+    <comment>An option to choose from for the "settings target". Targets the settings UI.</comment>
+  </data>
+  <data name="Actions_SettingsTargetDirectory.Content" xml:space="preserve">
+    <value>Directory</value>
+    <comment>An option to choose from for the "settings target". Targets the directory.</comment>
+  </data>
+  <data name="Actions_MoveTabDirectionNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the "move tab direction". No movement.</comment>
+  </data>
+  <data name="Actions_MoveTabDirectionForward.Content" xml:space="preserve">
+    <value>Forward</value>
+    <comment>An option to choose from for the "move tab direction". Moves the tab forward.</comment>
+  </data>
+  <data name="Actions_MoveTabDirectionBackward.Content" xml:space="preserve">
+    <value>Backward</value>
+    <comment>An option to choose from for the "move tab direction". Moves the tab backward.</comment>
+  </data>
+  <data name="Actions_ScrollToMarkDirectionPrevious.Content" xml:space="preserve">
+    <value>Previous</value>
+    <comment>An option to choose from for the "scroll to mark direction". Scrolls to the previous mark.</comment>
+  </data>
+  <data name="Actions_ScrollToMarkDirectionNext.Content" xml:space="preserve">
+    <value>Next</value>
+    <comment>An option to choose from for the "scroll to mark direction". Scrolls to the next mark.</comment>
+  </data>
+  <data name="Actions_ScrollToMarkDirectionFirst.Content" xml:space="preserve">
+    <value>First</value>
+    <comment>An option to choose from for the "scroll to mark direction". Scrolls to the first mark.</comment>
+  </data>
+  <data name="Actions_ScrollToMarkDirectionLast.Content" xml:space="preserve">
+    <value>Last</value>
+    <comment>An option to choose from for the "scroll to mark direction". Scrolls to the last mark.</comment>
+  </data>
+  <data name="Actions_CommandPaletteLaunchModeAction.Content" xml:space="preserve">
+    <value>Action</value>
+    <comment>An option to choose from for the "command palette launch mode". Launches in action mode.</comment>
+  </data>
+  <data name="Actions_CommandPaletteLaunchModeCommandLine.Content" xml:space="preserve">
+    <value>Command Line</value>
+    <comment>An option to choose from for the "command palette launch mode". Launches in command line mode.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the "suggestions source". No suggestions source.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceTasks.Content" xml:space="preserve">
+    <value>Tasks</value>
+    <comment>An option to choose from for the "suggestions source". Suggestions come from tasks.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceSnippets.Content" xml:space="preserve">
+    <value>Snippets</value>
+    <comment>An option to choose from for the "suggestions source". Suggestions come from snippets.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceCommandHistory.Content" xml:space="preserve">
+    <value>Command History</value>
+    <comment>An option to choose from for the "suggestions source". Suggestions come from command history.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceDirectoryHistory.Content" xml:space="preserve">
+    <value>Directory History</value>
+    <comment>An option to choose from for the "suggestions source". Suggestions come from directory history.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceQuickFix.Content" xml:space="preserve">
+    <value>Quick Fixes</value>
+    <comment>An option to choose from for the "suggestions source". Suggestions come from quick fixes.</comment>
+  </data>
+  <data name="Actions_SuggestionsSourceAll.Content" xml:space="preserve">
+    <value>All</value>
+    <comment>An option to choose from for the "suggestions source". Includes all suggestion sources.</comment>
+  </data>
+  <data name="Actions_FindMatchDirectionNone.Content" xml:space="preserve">
+    <value>None</value>
+    <comment>An option to choose from for the "find match direction". No direction selected.</comment>
+  </data>
+  <data name="Actions_FindMatchDirectionNext.Content" xml:space="preserve">
+    <value>Next</value>
+    <comment>An option to choose from for the "find match direction". Finds the next match.</comment>
+  </data>
+  <data name="Actions_FindMatchDirectionPrev.Content" xml:space="preserve">
+    <value>Previous</value>
+    <comment>An option to choose from for the "find match direction". Finds the previous match.</comment>
+  </data>
+  <data name="Actions_DesktopBehaviorAny.Content" xml:space="preserve">
+    <value>Any</value>
+    <comment>An option to choose from for the "desktop behavior". Applies to any desktop.</comment>
+  </data>
+  <data name="Actions_DesktopBehaviorToCurrent.Content" xml:space="preserve">
+    <value>To Current</value>
+    <comment>An option to choose from for the "desktop behavior". Moves to the current desktop.</comment>
+  </data>
+  <data name="Actions_DesktopBehaviorOnCurrent.Content" xml:space="preserve">
+    <value>On Current</value>
+    <comment>An option to choose from for the "desktop behavior". Stays on the current desktop.</comment>
+  </data>
+  <data name="Actions_MonitorBehaviorAny.Content" xml:space="preserve">
+    <value>Any</value>
+    <comment>An option to choose from for the "monitor behavior". Applies to any monitor.</comment>
+  </data>
+  <data name="Actions_MonitorBehaviorToCurrent.Content" xml:space="preserve">
+    <value>To Current</value>
+    <comment>An option to choose from for the "monitor behavior". Moves to the current monitor.</comment>
+  </data>
+  <data name="Actions_MonitorBehaviorToMouse.Content" xml:space="preserve">
+    <value>To Mouse</value>
+    <comment>An option to choose from for the "monitor behavior". Moves to the monitor where the mouse is located.</comment>
+  </data>
+  <data name="Actions_ClearBufferTypeScreen.Content" xml:space="preserve">
+    <value>Screen</value>
+    <comment>An option to choose from for the "clear buffer type". Clears only the screen.</comment>
+  </data>
+  <data name="Actions_ClearBufferTypeScrollback.Content" xml:space="preserve">
+    <value>Scrollback</value>
+    <comment>An option to choose from for the "clear buffer type". Clears only the scrollback buffer.</comment>
+  </data>
+  <data name="Actions_ClearBufferTypeAll.Content" xml:space="preserve">
+    <value>All</value>
+    <comment>An option to choose from for the "clear buffer type". Clears both the screen and the scrollback buffer.</comment>
+  </data>
+  <data name="Actions_SelectOutputDirectionPrev.Content" xml:space="preserve">
+    <value>Previous</value>
+    <comment>An option to choose from for the "select output direction". Selects the previous output.</comment>
+  </data>
+  <data name="Actions_SelectOutputDirectionNext.Content" xml:space="preserve">
+    <value>Next</value>
+    <comment>An option to choose from for the "select output direction". Selects the next output.</comment>
+  </data>
+  <data name="Actions_TabSwitcherModeMru.Content" xml:space="preserve">
+    <value>Most Recently Used</value>
+    <comment>An option to choose from for the "tab switcher mode". Switches tabs based on most recently used order.</comment>
+  </data>
+  <data name="Actions_TabSwitcherModeInOrder.Content" xml:space="preserve">
+    <value>In Order</value>
+    <comment>An option to choose from for the "tab switcher mode". Switches tabs in sequential order.</comment>
+  </data>
+  <data name="Actions_TabSwitcherModeDisabled.Content" xml:space="preserve">
+    <value>Disabled</value>
+    <comment>An option to choose from for the "tab switcher mode". Disables tab switching.</comment>
+  </data>
+  <data name="Actions_NullableColorPicker.NullColorButtonLabel" xml:space="preserve">
+    <value>No color</value>
+    <comment>Label for a button directing the user to opt out of choosing a color.</comment>
+  </data>
+  <data name="Actions_Browse.Content" xml:space="preserve">
+    <value>Browse...</value>
+    <comment>Button label that opens a file picker in a new window. The "..." is standard to mean it will open a new window.</comment>
+  </data>
   <data name="KeyChordListener.[using:Windows.UI.Xaml.Automation]AutomationProperties.HelpText" xml:space="preserve">
     <value>Input your desired keyboard shortcut.</value>
     <comment>Help text directing users how to use the "KeyChordListener" control. Pressing a keyboard shortcut will be recorded by this control.</comment>

src/cascadia/TerminalSettingsEditor/Utils.h

@@ -9,38 +9,38 @@
 // being its localized name, and also initializes the enum to EnumEntry
 // map that's required to tell XAML what enum value the currently active
 // setting has.
-#define INITIALIZE_BINDABLE_ENUM_SETTING(name, enumMappingsName, enumType, resourceSectionAndType, resourceProperty)                                        \
-    do                                                                                                                                                      \
-    {                                                                                                                                                       \
-        std::vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry> name##List;                                                                    \
-        _##name##Map = winrt::single_threaded_map<enumType, winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>();                                     \
-        auto enumMapping##name = winrt::Microsoft::Terminal::Settings::Model::EnumMappings::enumMappingsName();                                             \
-        for (auto [key, value] : enumMapping##name)                                                                                                         \
-        {                                                                                                                                                   \
-            auto enumName = LocalizedNameForEnumName(resourceSectionAndType, key, resourceProperty);                                                        \
-            auto entry = winrt::make<winrt::Microsoft::Terminal::Settings::Editor::implementation::EnumEntry>(enumName, winrt::box_value<enumType>(value)); \
-            name##List.emplace_back(entry);                                                                                                                 \
-            _##name##Map.Insert(value, entry);                                                                                                              \
-        }                                                                                                                                                   \
-        std::sort(name##List.begin(), name##List.end(), EnumEntryComparator<enumType>());                                                                   \
-        _##name##List = winrt::single_threaded_observable_vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>(std::move(name##List));           \
+#define INITIALIZE_BINDABLE_ENUM_SETTING(name, enumMappingsName, enumType, resourceSectionAndType, resourceProperty)                                                                     \
+    do                                                                                                                                                                                   \
+    {                                                                                                                                                                                    \
+        std::vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry> name##List;                                                                                                 \
+        _##name##Map = winrt::single_threaded_map<enumType, winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>();                                                                  \
+        auto enumMapping##name = winrt::Microsoft::Terminal::Settings::Model::EnumMappings::enumMappingsName();                                                                          \
+        for (auto [key, value] : enumMapping##name)                                                                                                                                      \
+        {                                                                                                                                                                                \
+            auto enumName = LocalizedNameForEnumName(resourceSectionAndType, key, resourceProperty);                                                                                     \
+            auto entry = winrt::make<winrt::Microsoft::Terminal::Settings::Editor::implementation::EnumEntry>(enumName, winrt::box_value<enumType>(value), static_cast<int32_t>(value)); \
+            name##List.emplace_back(entry);                                                                                                                                              \
+            _##name##Map.Insert(value, entry);                                                                                                                                           \
+        }                                                                                                                                                                                \
+        std::sort(name##List.begin(), name##List.end(), EnumEntryComparator<enumType>());                                                                                                \
+        _##name##List = winrt::single_threaded_observable_vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>(std::move(name##List));                                        \
     } while (0);
 
-#define INITIALIZE_BINDABLE_ENUM_SETTING_REVERSE_ORDER(name, enumMappingsName, enumType, resourceSectionAndType, resourceProperty)                          \
-    do                                                                                                                                                      \
-    {                                                                                                                                                       \
-        std::vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry> name##List;                                                                    \
-        _##name##Map = winrt::single_threaded_map<enumType, winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>();                                     \
-        auto enumMapping##name = winrt::Microsoft::Terminal::Settings::Model::EnumMappings::enumMappingsName();                                             \
-        for (auto [key, value] : enumMapping##name)                                                                                                         \
-        {                                                                                                                                                   \
-            auto enumName = LocalizedNameForEnumName(resourceSectionAndType, key, resourceProperty);                                                        \
-            auto entry = winrt::make<winrt::Microsoft::Terminal::Settings::Editor::implementation::EnumEntry>(enumName, winrt::box_value<enumType>(value)); \
-            name##List.emplace_back(entry);                                                                                                                 \
-            _##name##Map.Insert(value, entry);                                                                                                              \
-        }                                                                                                                                                   \
-        std::sort(name##List.begin(), name##List.end(), EnumEntryReverseComparator<enumType>());                                                            \
-        _##name##List = winrt::single_threaded_observable_vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>(std::move(name##List));           \
+#define INITIALIZE_BINDABLE_ENUM_SETTING_REVERSE_ORDER(name, enumMappingsName, enumType, resourceSectionAndType, resourceProperty)                                                       \
+    do                                                                                                                                                                                   \
+    {                                                                                                                                                                                    \
+        std::vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry> name##List;                                                                                                 \
+        _##name##Map = winrt::single_threaded_map<enumType, winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>();                                                                  \
+        auto enumMapping##name = winrt::Microsoft::Terminal::Settings::Model::EnumMappings::enumMappingsName();                                                                          \
+        for (auto [key, value] : enumMapping##name)                                                                                                                                      \
+        {                                                                                                                                                                                \
+            auto enumName = LocalizedNameForEnumName(resourceSectionAndType, key, resourceProperty);                                                                                     \
+            auto entry = winrt::make<winrt::Microsoft::Terminal::Settings::Editor::implementation::EnumEntry>(enumName, winrt::box_value<enumType>(value), static_cast<int32_t>(value)); \
+            name##List.emplace_back(entry);                                                                                                                                              \
+            _##name##Map.Insert(value, entry);                                                                                                                                           \
+        }                                                                                                                                                                                \
+        std::sort(name##List.begin(), name##List.end(), EnumEntryReverseComparator<enumType>());                                                                                         \
+        _##name##List = winrt::single_threaded_observable_vector<winrt::Microsoft::Terminal::Settings::Editor::EnumEntry>(std::move(name##List));                                        \
     } while (0);
 
 // This macro must be used alongside INITIALIZE_BINDABLE_ENUM_SETTING.

src/cascadia/TerminalSettingsModel/ActionArgs.h

@@ -307,7 +307,7 @@ protected:                                                                  \
 #define SPLIT_PANE_ARGS(X)                                                                                 \
     X(Model::SplitDirection, SplitDirection, "split", false, ArgTypeHint::None, SplitDirection::Automatic) \
     X(SplitType, SplitMode, "splitMode", false, ArgTypeHint::None, SplitType::Manual)                      \
-    X(float, SplitSize, "size", false, ArgTypeHint::None, 0.5f)
+    X(float, SplitSize, "size", false, ArgTypeHint::SplitSize, 0.5f)
 
 ////////////////////////////////////////////////////////////////////////////////
 #define HANDLE_URI_ARGS(X) \

src/cascadia/TerminalSettingsModel/ActionArgs.idl

@@ -10,7 +10,8 @@ namespace Microsoft.Terminal.Settings.Model
         None = 0,
         FilePath,
         FolderPath,
-        ColorScheme
+        ColorScheme,
+        SplitSize
     };
 
     struct ArgDescriptor

src/cascadia/TerminalSettingsModel/Command.cpp

@@ -238,7 +238,14 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
     {
         if (!_name.has_value() || _name->name != value)
         {
-            _name = CommandNameOrResource{ .name = std::wstring{ value } };
+            if (value.empty())
+            {
+                _name.reset();
+            }
+            else
+            {
+                _name = CommandNameOrResource{ .name = std::wstring{ value } };
+            }
         }
     }
 

src/features.xml

@@ -68,6 +68,13 @@
         </alwaysEnabledBrandingTokens>
     </feature>
 
+    <feature>
+        <name>Feature_AtlasEngineLoudErrors</name>
+        <description>Atlas Engine can optionally support signaling every presentation failure to its consumer. For now, we only want that to happen in non-Release builds.</description>
+        <stage>AlwaysEnabled</stage>
+        <alwaysDisabledReleaseTokens/>
+    </feature>
+
     <feature>
         <name>Feature_NearbyFontLoading</name>
         <description>Controls whether fonts in the same directory as the binary are used during rendering. Disabled for conhost so that it doesn't iterate the entire system32 directory.</description>

src/renderer/atlas/AtlasEngine.r.cpp

@@ -61,13 +61,18 @@ catch (const wil::ResultException& exception)
         return E_PENDING;
     }
 
-    if (_p.warningCallback)
+    if constexpr (Feature_AtlasEngineLoudErrors::IsEnabled())
     {
-        try
+        // We may fail to present repeatedly, e.g. if there's a short-term device failure.
+        // We should not bombard the consumer with repeated warning callbacks (where they may present a dialog to the user).
+        if (_p.warningCallback)
         {
-            _p.warningCallback(hr, {});
+            try
+            {
+                _p.warningCallback(hr, {});
+            }
+            CATCH_LOG()
         }
-        CATCH_LOG()
     }
 
     _b.reset();

src/renderer/base/renderer.cpp

@@ -12,9 +12,10 @@ using namespace Microsoft::Console::Types;
 using PointTree = interval_tree::IntervalTree<til::point, size_t>;
 
 static constexpr TimerRepr TimerReprMax = std::numeric_limits<TimerRepr>::max();
-static constexpr DWORD maxRetriesForRenderEngine = 3;
-// The renderer will wait this number of milliseconds * how many tries have elapsed before trying again.
-static constexpr DWORD renderBackoffBaseTimeMilliseconds = 150;
+// We want there to be five retry periods; after the last one, we will mark the render as failed.
+static constexpr unsigned int maxRetriesForRenderEngine = 5;
+// The renderer will wait this number of milliseconds * 2^tries before trying again.
+static constexpr DWORD renderBackoffBaseTimeMilliseconds = 100;
 
 // Routine Description:
 // - Creates a new renderer controller for a console.
@@ -326,40 +327,44 @@ DWORD Renderer::_timerToMillis(TimerRepr t) noexcept
 // - HRESULT S_OK, GDI error, Safe Math error, or state/argument errors.
 [[nodiscard]] HRESULT Renderer::PaintFrame()
 {
-    auto tries = maxRetriesForRenderEngine;
-    while (tries > 0)
+    HRESULT hr{ S_FALSE };
+    // Attempt zero doesn't count as a retry. We should try maxRetries + 1 times.
+    for (unsigned int attempt = 0u; attempt <= maxRetriesForRenderEngine; ++attempt)
     {
+        if (attempt > 0) [[unlikely]]
+        {
+            // Add a bit of backoff.
+            // Sleep 100, 200, 400, 600, 800ms, 1600ms before failing out and disabling the renderer.
+            Sleep(renderBackoffBaseTimeMilliseconds * (1 << (attempt - 1)));
+        }
+
         // BODGY: Optimally we would want to retry per engine, but that causes different
         // problems (intermittent inconsistent states between text renderer and UIA output,
         // not being able to lock the cursor location, etc.).
-        const auto hr = _PaintFrame();
+        hr = _PaintFrame();
         if (SUCCEEDED(hr))
         {
             break;
         }
 
         LOG_HR_IF(hr, hr != E_PENDING);
-
-        if (--tries == 0)
-        {
-            // Stop trying.
-            _disablePainting();
-            if (_pfnRendererEnteredErrorState)
-            {
-                _pfnRendererEnteredErrorState();
-            }
-            // If there's no callback, we still don't want to FAIL_FAST: the renderer going black
-            // isn't near as bad as the entire application aborting. We're a component. We shouldn't
-            // abort applications that host us.
-            return S_FALSE;
-        }
-
-        // Add a bit of backoff.
-        // Sleep 150ms, 300ms, 450ms before failing out and disabling the renderer.
-        Sleep(renderBackoffBaseTimeMilliseconds * (maxRetriesForRenderEngine - tries));
     }
 
-    return S_OK;
+    if (FAILED(hr))
+    {
+        // Stop trying.
+        _disablePainting();
+        if (_pfnRendererEnteredErrorState)
+        {
+            _pfnRendererEnteredErrorState();
+        }
+        // If there's no callback, we still don't want to FAIL_FAST: the renderer going black
+        // isn't near as bad as the entire application aborting. We're a component. We shouldn't
+        // abort applications that host us.
+        hr = S_FALSE;
+    }
+
+    return hr;
 }
 
 [[nodiscard]] HRESULT Renderer::_PaintFrame() noexcept

src/tsf/Handle.cpp

@@ -12,7 +12,11 @@ Handle Handle::Create()
 {
     Handle handle;
     handle._impl = new Implementation();
-    handle._impl->Initialize();
+    if (!handle._impl->Initialize())
+    {
+        delete handle._impl;
+        handle._impl = nullptr;
+    }
     return handle;
 }
 

src/tsf/Implementation.cpp

@@ -68,9 +68,14 @@ void Implementation::SetDefaultScopeAlphanumericHalfWidth(bool enable) noexcept
     s_wantsAnsiInputScope.store(enable, std::memory_order_relaxed);
 }
 
-void Implementation::Initialize()
+bool Implementation::Initialize()
 {
-    _categoryMgr = wil::CoCreateInstance<ITfCategoryMgr>(CLSID_TF_CategoryMgr, CLSCTX_INPROC_SERVER);
+    _categoryMgr = wil::CoCreateInstanceNoThrow<ITfCategoryMgr>(CLSID_TF_CategoryMgr);
+    if (!_categoryMgr)
+    {
+        return false;
+    }
+
     _displayAttributeMgr = wil::CoCreateInstance<ITfDisplayAttributeMgr>(CLSID_TF_DisplayAttributeMgr);
 
     // There's no point in calling TF_GetThreadMgr. ITfThreadMgr is a per-thread singleton.
@@ -89,6 +94,7 @@ void Implementation::Initialize()
     THROW_IF_FAILED(_contextSource->AdviseSink(IID_ITfTextEditSink, static_cast<ITfTextEditSink*>(this), &_cookieTextEditSink));
 
     THROW_IF_FAILED(_documentMgr->Push(_context.get()));
+    return true;
 }
 
 void Implementation::Uninitialize() noexcept

src/tsf/Implementation.h

@@ -21,7 +21,7 @@ namespace Microsoft::Console::TSF
 
         virtual ~Implementation() = default;
 
-        void Initialize();
+        bool Initialize();
         void Uninitialize() noexcept;
         HWND FindWindowOfActiveTSF() noexcept;
         void AssociateFocus(IDataProvider* provider);