<UserControl x:Class="SspMain.FrmMdiContainer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:s="clr-namespace:SspMain">

    <UserControl.InputBindings>
        <KeyBinding Gesture="Ctrl+F4" Command="{Binding ActCloseTabItem}"/>
    </UserControl.InputBindings>
    
    <UserControl.Resources>

        <DataTemplate x:Key="TabItemHeaderTemplate">
            <StackPanel Orientation="Horizontal">
                <ContentControl VerticalAlignment="Center"
                                Content="{Binding}"
                                IsTabStop="False"
                                FontWeight="Bold"/>
                <Button Margin="10,2,0,2" 
                        Padding="3"
                        VerticalAlignment="Center"                     
                        Style="{s:SkinResource {x:Static ToolBar.ButtonStyleKey}}"
                        FocusVisualStyle="{x:Null}"
                        ToolTip="Закрыть (Ctrl+F4)"
                        Command="{Binding DataContext.ActCloseTabItem, RelativeSource={RelativeSource AncestorType={x:Type s:FrmMdiContainer}}}"
                        CommandParameter="{Binding DataContext, RelativeSource={RelativeSource AncestorType={x:Type TabItem}}}">
                    <Image Source="Close.png"/>
                </Button>
            </StackPanel>
        </DataTemplate>

        <Style x:Key="TabItemStyle" TargetType="TabItem" BasedOn="{s:SkinStyle}">
            <Setter Property="Header" Value="{Binding Header}"/>
            <Setter Property="Content" Value="{Binding View}"/>
            <Setter Property="HeaderTemplate" Value="{StaticResource TabItemHeaderTemplate}"/>
            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            <Setter Property="VerticalContentAlignment" Value="Stretch"/>
        </Style>

    </UserControl.Resources>

    <TabControl ItemsSource="{Binding Documents.DataView}"
                ItemContainerStyle="{StaticResource TabItemStyle}"/>
</UserControl>

private T FindVisualParent<T>( DependencyObject node ) where T : DependencyObject   
{   
    DependencyObject parent = VisualTreeHelper.GetParent( node );   
    if ( parent == null || parent is T ) 
        return (T)parent;   

    // Recurse up the visual tree.   
    return FindVisualParent<T>( parent );
}