WPF-Demo/Waaagh/Themes/CustomControl/WaaaghWindow.xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:cnvt="clr-namespace:Waaagh.Converters"
    xmlns:custom="clr-namespace:Waaagh.CustomControl"
    xmlns:helper="clr-namespace:Waaagh.Helpers">

    <Style x:Key="TitleButtonStyle" TargetType="Button">
        <Setter Property="Margin" Value="1"/>
        <Setter Property="BorderThickness" Value="0"/>
        <Setter Property="Width" Value="28"/>
        <Setter Property="Height" Value="28"/>
        <Setter Property="HorizontalContentAlignment" Value="Center"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
    </Style>

    <TextBlock x:Key="TestContent" Text="Test"/>
    <TextBlock x:Key="TestContent2" Text="Testsds"/>

    <Style TargetType="{x:Type custom:WaaaghWindow}">

        <Setter Property="WindowChrome.WindowChrome">
            <Setter.Value>
                <WindowChrome CaptionHeight="32" ResizeBorderThickness="5" UseAeroCaptionButtons="False"/>
            </Setter.Value>
        </Setter>

        <Setter Property="Width" Value="450"/>
        <Setter Property="Height" Value="800"/>
        <Setter Property="Background" Value="AliceBlue"/>

        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type custom:WaaaghWindow}">
                    <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                        <Border x:Name="LayoutRoot" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
                            <DockPanel>
                                <Border DockPanel.Dock="Top" Height="28">
                                    <DockPanel LastChildFill="True" Background="Beige">


                                        <!--#region TitleButton-->
                                        <Grid DockPanel.Dock="Right">
                                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center" WindowChrome.IsHitTestVisibleInChrome="True"
                                                Visibility="{TemplateBinding TitleBarButtons, Converter={cnvt:DefaultContentVisibilityConverter}}">
                                                <Button Style="{StaticResource TitleButtonStyle}" Command="{x:Static SystemCommands.MinimizeWindowCommand}" Content="-"/>
                                                <Button Style="{StaticResource TitleButtonStyle}" Command="{x:Static SystemCommands.MaximizeWindowCommand}" Content="{StaticResource TestContent}"
                                                    Visibility="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=WindowState, Converter={cnvt:IsCollapsedConverter}, ConverterParameter={x:Static WindowState.Maximized}}"/>
                                                <Button Style="{StaticResource TitleButtonStyle}" Command="{x:Static SystemCommands.RestoreWindowCommand}" Content="{StaticResource TestContent2}"
                                                    Visibility="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=WindowState, Converter={cnvt:IsCollapsedConverter}, ConverterParameter={x:Static WindowState.Normal}}"/>
                                                <Button Style="{StaticResource TitleButtonStyle}" Command="{x:Static SystemCommands.CloseWindowCommand}" Content="X"/>
                                            </StackPanel>
                                            <ItemsControl ItemsSource="{TemplateBinding TitleBarButtons}" HorizontalAlignment="Right" VerticalAlignment="Center">
                                                <ItemsControl.ItemsPanel>
                                                    <ItemsPanelTemplate>
                                                        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center" WindowChrome.IsHitTestVisibleInChrome="True"/>
                                                    </ItemsPanelTemplate>
                                                </ItemsControl.ItemsPanel>

                                                <ItemsControl.ItemContainerStyle>
                                                    <Style TargetType="Button" BasedOn="{StaticResource TitleButtonStyle}"/>
                                                </ItemsControl.ItemContainerStyle>
                                            </ItemsControl>
                                        </Grid>
                                        <!--#endregion-->

                                        <!--#region TitleContent-->
                                        <Border DockPanel.Dock="Left">
                                            <Grid>
                                                <StackPanel Orientation="Horizontal" Visibility="{TemplateBinding TitleBarContent, Converter={cnvt:DefaultContentVisibilityConverter}}">
                                                    <Image Source="{TemplateBinding Icon}"/>
                                                    <TextBlock Text="{TemplateBinding Title}" VerticalAlignment="Center"/>
                                                </StackPanel>
                                                <ContentPresenter ContentSource="TitleBarContent"/>
                                            </Grid>
                                        </Border>
                                        <!--#endregion-->

                                    </DockPanel>
                                </Border>

                                <Border Background="{TemplateBinding Background}">
                                    <AdornerDecorator>
                                        <ContentPresenter/>
                                    </AdornerDecorator>
                                </Border>

                            </DockPanel>
                        </Border>
                    </Border>

                    <ControlTemplate.Triggers>
                        <Trigger Property="WindowState" Value="Maximized">
                            <Setter TargetName="LayoutRoot" Property="Margin" Value="{x:Static helper:WindowHelper.ChromeThickness}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>

                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>