terminal/src/cascadia/TerminalApp/CommandPalette.xaml

<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under
the MIT License. See LICENSE in the project root for license information. -->
<UserControl
    x:Class="TerminalApp.CommandPalette"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:TerminalApp"
    xmlns:mux="using:Microsoft.UI.Xaml.Controls"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Windows10version1903="http://schemas.microsoft.com/winfx/2006/xaml/presentation?IsApiContractPresent(Windows.Foundation.UniversalApiContract, 8)"
    xmlns:SettingsModel="using:Microsoft.Terminal.Settings.Model"
    TabNavigation="Cycle"
    IsTabStop="True"
    AllowFocusOnInteraction="True"
    PointerPressed="_rootPointerPressed"
    PreviewKeyDown="_previewKeyDownHandler"
    KeyDown="_keyDownHandler"
    PreviewKeyUp="_keyUpHandler"
    mc:Ignorable="d"
    AutomationProperties.Name="{x:Bind ControlName, Mode=OneWay}">

    <UserControl.Resources>
        <ResourceDictionary>

            <!-- ThemeShadow is only on 18362. This "Windows10version1903" bit
            adds it conditionally -->
            <Windows10version1903:ThemeShadow x:Name="CommandPaletteShadow" />

            <!-- This creates an instance of our CommandKeyChordVisibilityConverter we can reference below -->
            <local:EmptyStringVisibilityConverter x:Key="CommandKeyChordVisibilityConverter"/>
            <local:EmptyStringVisibilityConverter x:Key="ParentCommandVisibilityConverter"/>
            <local:HasNestedCommandsVisibilityConverter x:Key="HasNestedCommandsVisibilityConverter"/>

            <ResourceDictionary.ThemeDictionaries>
                <ResourceDictionary x:Key="Dark">
                    <Style x:Key="CommandPaletteBackground" TargetType="Grid">
                        <Setter Property="Background" Value="#333333" />
                    </Style>
                    <!-- TextBox colors !-->
                    <SolidColorBrush x:Key="TextControlBackground" Color="#333333"/>
                    <SolidColorBrush x:Key="TextBoxPlaceholderTextThemeBrush" Color="#B5B5B5"/>
                    <SolidColorBrush x:Key="TextControlForeground" Color="#B5B5B5"/>
                    <SolidColorBrush x:Key="TextControlBorderBrush" Color="#404040"/>
                    <SolidColorBrush x:Key="TextControlButtonForeground" Color="#B5B5B5"/>

                    <SolidColorBrush x:Key="TextControlBackgroundPointerOver" Color="#404040"/>
                    <SolidColorBrush x:Key="TextControlForegroundPointerOver" Color="#FFFFFF"/>
                    <SolidColorBrush x:Key="TextControlBorderBrushPointerOver" Color="#404040"/>
                    <SolidColorBrush x:Key="TextControlButtonForegroundPointerOver" Color="#FF4343"/>

                    <SolidColorBrush x:Key="TextControlBackgroundFocused" Color="#333333"/>
                    <SolidColorBrush x:Key="TextControlForegroundFocused" Color="#FFFFFF"/>
                    <SolidColorBrush x:Key="TextControlBorderBrushFocused" Color="#404040"/>
                    <SolidColorBrush x:Key="TextControlButtonForegroundPressed" Color="#FFFFFF"/>
                    <SolidColorBrush x:Key="TextControlButtonBackgroundPressed" Color="#FF4343"/>

                    <!--  KeyChordText styles  -->
                    <Style x:Key="KeyChordBorderStyle" TargetType="Border">
                        <Setter Property="BorderThickness" Value="1" />
                        <Setter Property="CornerRadius" Value="1" />
                        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
                    </Style>
                    <Style x:Key="KeyChordTextBlockStyle" TargetType="TextBlock">
                        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
                    </Style>

                </ResourceDictionary>
                <ResourceDictionary x:Key="Light">
                    <Style x:Key="CommandPaletteBackground" TargetType="Grid">
                        <Setter Property="Background" Value="#CCCCCC" />
                    </Style>
                    <!-- TextBox colors !-->
                    <SolidColorBrush x:Key="TextControlBackground" Color="#CCCCCC"/>
                    <SolidColorBrush x:Key="TextBoxPlaceholderTextThemeBrush" Color="#636363"/>
                    <SolidColorBrush x:Key="TextControlBorderBrush" Color="#636363"/>
                    <SolidColorBrush x:Key="TextControlButtonForeground" Color="#636363"/>

                    <SolidColorBrush x:Key="TextControlBackgroundPointerOver" Color="#DADADA"/>
                    <SolidColorBrush x:Key="TextControlBorderBrushPointerOver" Color="#636363"/>
                    <SolidColorBrush x:Key="TextControlButtonForegroundPointerOver" Color="#FF4343"/>

                    <SolidColorBrush x:Key="TextControlBackgroundFocused" Color="#CCCCCC"/>
                    <SolidColorBrush x:Key="TextControlBorderBrushFocused" Color="#636363"/>
                    <SolidColorBrush x:Key="TextControlButtonForegroundPressed" Color="#FFFFFF"/>
                    <SolidColorBrush x:Key="TextControlButtonBackgroundPressed" Color="#FF4343"/>

                    <!--  KeyChordText styles  -->
                    <Style x:Key="KeyChordBorderStyle" TargetType="Border">
                        <Setter Property="BorderThickness" Value="1" />
                        <Setter Property="CornerRadius" Value="1" />
                        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
                    </Style>
                    <Style x:Key="KeyChordTextBlockStyle" TargetType="TextBlock">
                        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseMediumBrush}" />
                    </Style>

                </ResourceDictionary>
                <ResourceDictionary x:Key="HighContrast">
                    <Style x:Key="CommandPaletteBackground" TargetType="Grid">
                        <Setter Property="Background" Value="{ThemeResource SystemColorWindowColor}" />
                    </Style>

                    <!--  KeyChordText styles (use XAML defaults for High Contrast theme) -->
                    <Style x:Key="KeyChordBorderStyle" TargetType="Border"/>
                    <Style x:Key="KeyChordTextBlockStyle" TargetType="TextBlock"/>

                </ResourceDictionary>
            </ResourceDictionary.ThemeDictionaries>
        </ResourceDictionary>
    </UserControl.Resources>

    <Grid>

        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="2*" />
            <ColumnDefinition Width="6*" />
            <ColumnDefinition Width="2*" />
        </Grid.ColumnDefinitions>

        <Grid.RowDefinitions>
            <RowDefinition Height="8*"/>
            <RowDefinition Height="2*"/>
        </Grid.RowDefinitions>

        <!-- Setting the row/col span of this shadow backdrop is a bit of a hack. In
        order to receive pointer events, an element needs to be _not_ transparent.
        However, we want to be able to eat all the clicks outside the immediate
        bounds of the command palette, and we don't want a semi-transparent overlay
        over all of the UI. Fortunately, if we make this _shadowBackdrop the size of
        the entire page, then it can be mostly transparent, and cause the root grid
        to receive clicks _anywhere_ in its bounds. -->

        <Grid
        x:Name="_shadowBackdrop"
        Background="Transparent"
        Grid.Column="0"
        Grid.Row="0"
        Grid.ColumnSpan="3"
        Grid.RowSpan="2"
        HorizontalAlignment="Stretch"
        VerticalAlignment="Stretch">
        </Grid>

        <Grid
        x:Name="_backdrop"
        Style="{ThemeResource CommandPaletteBackground}"
        CornerRadius="{ThemeResource ControlCornerRadius}"
        PointerPressed="_backdropPointerPressed"
        Margin="8"
        Grid.Column="1"
        Grid.Row="0"
        Windows10version1903:Shadow="{StaticResource CommandPaletteShadow}"
        HorizontalAlignment="Stretch"
        VerticalAlignment="Top">

            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <TextBox
            Grid.Row="0"
            x:Name="_searchBox"
            Margin="8"
            IsSpellCheckEnabled="False"
            TextChanged="_filterTextChanged"
            PlaceholderText="{x:Bind SearchBoxText, Mode=OneWay}"
            Text="">
            </TextBox>

            <TextBlock
                Padding="16, 0, 16, 4"
                x:Name="_parentCommandText"
                FontStyle="Italic"
                Visibility="{x:Bind ParentCommandName,
                             Mode=OneWay,
                             Converter={StaticResource ParentCommandVisibilityConverter}}"
                Grid.Row="1"
                Text="{x:Bind ParentCommandName, Mode=OneWay}">
            </TextBlock>

            <TextBlock
                Padding="16"
                x:Name="_noMatchesText"
                FontStyle="Italic"
                Visibility="Collapsed"
                Grid.Row="1"
                Text="{x:Bind NoMatchesText, Mode=OneWay}">
            </TextBlock>

            <ListView
            Grid.Row="2"
            x:Name="_filteredActionsView"
            HorizontalAlignment="Stretch"
            VerticalAlignment="Stretch"
            SelectionMode="Single"
            CanReorderItems="False"
            AllowDrop="False"
            IsItemClickEnabled="True"
            ItemClick="_listItemClicked"
            PreviewKeyDown="_keyDownHandler"
            ItemsSource="{x:Bind FilteredActions}">

                <ItemsControl.ItemTemplate >
                    <DataTemplate x:DataType="SettingsModel:Command">

                        <!-- This HorizontalContentAlignment="Stretch" is important
                        to make sure it takes the entire width of the line -->
                        <ListViewItem HorizontalContentAlignment="Stretch"
                                  AutomationProperties.Name="{x:Bind Name, Mode=OneWay}"
                                  AutomationProperties.AcceleratorKey="{x:Bind KeyChordText, Mode=OneWay}">

                            <Grid HorizontalAlignment="Stretch" ColumnSpacing="8" >

                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="16"/>   <!-- icon -->
                                    <ColumnDefinition Width="Auto"/> <!-- command label -->
                                    <ColumnDefinition Width="*"/>    <!-- key chord -->
                                    <ColumnDefinition Width="16"/>   <!-- gutter for scrollbar -->
                                </Grid.ColumnDefinitions>

                                <IconSourceElement
                                    Grid.Column="0"
                                    Width="16"
                                    Height="16"
                                    IconSource="{x:Bind IconSource, Mode=OneWay}"/>

                                <TextBlock Grid.Column="1"
                                       HorizontalAlignment="Left"
                                       Text="{x:Bind Name, Mode=OneWay}" />

                                <!-- The block for the key chord is only visible
                                when there's actual text set as the label. See
                                CommandKeyChordVisibilityConverter for details. -->
                                <Border
                                    Grid.Column="2"
                                    Visibility="{x:Bind KeyChordText,
                                                 Mode=OneWay,
                                                 Converter={StaticResource CommandKeyChordVisibilityConverter}}"
                                    Style="{ThemeResource KeyChordBorderStyle}"
                                    Padding="2,0,2,0"
                                    HorizontalAlignment="Right"
                                    VerticalAlignment="Center">

                                    <TextBlock
                                        Style="{ThemeResource KeyChordTextBlockStyle}"
                                        FontSize="12"
                                        Text="{x:Bind KeyChordText, Mode=OneWay}" />
                                </Border>

                                <!-- xE70E is ChevronUp. Rotated 90 degrees, it's _ChevronRight_ -->
                                <FontIcon
                                    FontFamily="Segoe MDL2 Assets"
                                    Glyph="&#xE70E;"
                                    HorizontalAlignment="Right"
                                    Visibility="{x:Bind HasNestedCommands,
                                                 Mode=OneWay,
                                                 Converter={StaticResource HasNestedCommandsVisibilityConverter}}"
                                    Grid.Column="2">

                                    <FontIcon.RenderTransform>
                                        <RotateTransform CenterX="0.5" CenterY="0.5" Angle="90"/>
                                    </FontIcon.RenderTransform>
                                </FontIcon>

                            </Grid>
                        </ListViewItem>
                    </DataTemplate>
                </ItemsControl.ItemTemplate>
            </ListView>

        </Grid>


    </Grid>
</UserControl>