sourcegit/src/UI/FolderDialog.xaml

<Window x:Class="SourceGit.UI.FolderDialog"
        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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d"
        Title="{StaticResource Text.FolderDialog}" 
        Height="400" Width="400"
        ResizeMode="NoResize">
    
    <!-- Enable WindowChrome Feature -->
    <WindowChrome.WindowChrome>
        <WindowChrome UseAeroCaptionButtons="False" CornerRadius="0" CaptionHeight="32" ResizeBorderThickness="1"/>
    </WindowChrome.WindowChrome>

    <!-- Window Layout -->
    <Border Background="{StaticResource Brush.Window}" BorderThickness="1" BorderBrush="{StaticResource Brush.Border3}">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="32"/>
                <RowDefinition Height="32"/>
                <RowDefinition Height="*"/>
                <RowDefinition Height="48"/>
            </Grid.RowDefinitions>

            <!-- Titlebar -->
            <Grid Grid.Row="0" Background="{StaticResource Brush.TitleBar}">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>

                <!-- LOGO -->
                <Path Margin="6,-1,2,0" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Folder.Open}"/>

                <!-- Title -->
                <Label Grid.Column="1" x:Name="txtTitle" FontWeight="Light"/>

                <!-- Close Button -->
                <Button Click="OnQuit" Width="32" Grid.Column="3" WindowChrome.IsHitTestVisibleInChrome="True">
                    <Button.Style>
                        <Style TargetType="{x:Type Button}" BasedOn="{StaticResource Style.Button.HighlightHover}">
                            <Style.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter Property="Background" Value="Red"/>
                                </Trigger>
                            </Style.Triggers>
                        </Style>
                    </Button.Style>

                    <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Close}"/>
                </Button>
            </Grid>
            
            <!-- Current -->
            <StackPanel Grid.Row="1" Orientation="Horizontal" Margin="0,4,0,0">
                <Label Content="{StaticResource Text.FolderDialog.Selected}" />
                <Label x:Name="txtSelected" Content="NONE" Foreground="{StaticResource Brush.FG2}"/>
            </StackPanel>
            
            <!-- File system tree -->
            <Border Grid.Row="2" Margin="4" Background="{StaticResource Brush.Contents}" BorderBrush="{StaticResource Brush.Border1}" BorderThickness="1">
                <TreeView x:Name="treePath" FontFamily="Consolas" PreviewMouseWheel="OnTreeMouseWheel" SelectedItemChanged="OnTreeSelectedChanged">
                    <TreeView.ItemContainerStyle>
                        <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource Style.TreeView.ItemContainerStyle}">
                            <EventSetter Event="Expanded" Handler="OnTreeNodeExpanded"/>
                            <EventSetter Event="Collapsed" Handler="OnTreeNodeCollapsed"/>
                        </Style>
                    </TreeView.ItemContainerStyle>
                    
                    <TreeView.ItemTemplate>
                        <HierarchicalDataTemplate ItemsSource="{Binding Children}">
                            <StackPanel Orientation="Horizontal" Height="24">
                                <Path x:Name="icon" Width="14" Style="{StaticResource Style.Icon}" Fill="Goldenrod" Data="{StaticResource Icon.Folder.Fill}"/>
                                <TextBlock Text="{Binding Name}" Foreground="{StaticResource Brush.FG1}" VerticalAlignment="Center" Margin="6,0,0,0" FontSize="11"/>
                            </StackPanel>

                            <HierarchicalDataTemplate.Triggers>
                                <DataTrigger Binding="{Binding IsOpened}" Value="True">
                                    <Setter TargetName="icon" Property="Data" Value="{StaticResource Icon.Folder.Open}"/>
                                </DataTrigger>
                            </HierarchicalDataTemplate.Triggers>
                        </HierarchicalDataTemplate>
                    </TreeView.ItemTemplate>
                </TreeView>
            </Border>
            
            <!-- Operations -->
            <Grid Grid.Row="3">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="8"/>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>

                <Button Grid.Column="1" x:Name="btnSure" Width="100" Height="32" Content="{StaticResource Text.Sure}" Click="OnSure" Style="{StaticResource Style.Button.AccentBordered}"/>
                <Button Grid.Column="3" Width="100" Height="32" Content="{StaticResource Text.Cancel}" Click="OnQuit" Style="{StaticResource Style.Button.Bordered}"/>
            </Grid>
        </Grid>
    </Border>
</Window>