MainWindowV1.xaml

<Window xmlns="https://github.com/avaloniaui" MinWidth="500" MinHeight="300"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:webview="clr-namespace:WebViewControl;assembly=WebViewControl.Avalonia"
        x:Class="SampleWebView.Avalonia.MainWindowV1"
        Title="Sample WebView"
        ExtendClientAreaToDecorationsHint="True"
        ExtendClientAreaChromeHints="PreferSystemChrome"
        TransparencyLevelHint="AcrylicBlur"
        Background="Transparent">

    <NativeMenu.Menu>
        <NativeMenu>
            <NativeMenuItem Header="Edit">
                <NativeMenuItem.Menu>
                    <NativeMenu>
                        <NativeMenuItem Header="Undo" Command="{Binding UndoCommand}" Gesture="CMD+Z" />
                        <NativeMenuItem Header="Redo" Command="{Binding RedoCommand}" Gesture="Shift+CMD+Z" />
                        <NativeMenuItemSeparator />
                        <NativeMenuItem Header="Cut" Command="{Binding CutCommand}" Gesture="CMD+X" />
                        <NativeMenuItem Header="Copy" Command="{Binding CopyCommand}" Gesture="CMD+C" />
                        <NativeMenuItem Header="Paste" Command="{Binding PasteCommand}" Gesture="CMD+V" />
                        <NativeMenuItem Header="Delete" Command="{Binding DeleteCommand}" Gesture="CMD+Back" />
                        <NativeMenuItemSeparator />
                        <NativeMenuItem Header="Select All" Command="{Binding SelectAllCommand}" Gesture="CMD+A" />
                    </NativeMenu>
                </NativeMenuItem.Menu>
            </NativeMenuItem>
            <NativeMenuItem Header="Navigate">
                <NativeMenuItem.Menu>
                    <NativeMenu>
                        <NativeMenuItem Header="Back" Command="{Binding BackCommand}" />
                        <NativeMenuItem Header="Forward" Command="{Binding ForwardCommand}" />
                    </NativeMenu>
                </NativeMenuItem.Menu>
            </NativeMenuItem>
        </NativeMenu>
    </NativeMenu.Menu>

    <Panel>
        <ExperimentalAcrylicBorder IsHitTestVisible="False">
            <ExperimentalAcrylicBorder.Material>
                <ExperimentalAcrylicMaterial BackgroundSource="Digger"
                                             TintColor="{DynamicResource SystemAltHighColor}"
                                             TintOpacity="1"
                                             FallbackColor="Black"
                                             MaterialOpacity="0.25" />
            </ExperimentalAcrylicBorder.Material>
        </ExperimentalAcrylicBorder>
        <DockPanel>

            <DockPanel DockPanel.Dock="Top" Margin="0 0 400 0">
                <Button DockPanel.Dock="Right"
                        Background="Transparent"
                        Command="{Binding ShowDevToolsCommand}">
                    Show DevTools
                </Button>

                <CheckBox DockPanel.Dock="Right"
                          Background="Transparent"
                          IsEnabled="False"
                          IsChecked="{Binding TextAvailable}">
                    Text
                </CheckBox>
                <Button DockPanel.Dock="Right"
                        Background="Transparent"
                        IsEnabled="{Binding !TextAvailable}"
                        Command="{Binding GetTextCommand}">
                    Get Text
                </Button>

                <CheckBox DockPanel.Dock="Right"
                          Background="Transparent"
                          IsEnabled="False"
                          IsChecked="{Binding SourceAvailable}">
                    Source
                </CheckBox>
                <Button DockPanel.Dock="Right"
                        Background="Transparent"
                        IsEnabled="{Binding !SourceAvailable}"
                        Command="{Binding GetSourceCommand}">
                    Get Source
                </Button>

                <TextBox Background="Transparent" TabIndex="0" Text="{Binding Address}" Margin="80 0 0 0">
                    <TextBox.KeyBindings>
                        <KeyBinding Gesture="Enter" Command="{Binding NavigateCommand}" />
                    </TextBox.KeyBindings>
                </TextBox>
            </DockPanel>

            <DockPanel Dock="Bottom"
                       VerticalAlignment="Center"
                       Background="LightGray"
                       IsVisible="{Binding IsDownloading}">
                <Grid DockPanel.Dock="Right"
                      Margin="10, 10, 10, 10"
                      RowDefinitions="Auto, Auto, Auto"
                      ColumnDefinitions="Auto">
                    <Label Grid.Row="0" Grid.Column="0" 
                           Content="{Binding DownloadMessage}"/>
                    <Label Grid.Row="1" Grid.Column="0" 
                           Content="{Binding DownloadProgress}"/>
                    <ProgressBar Grid.Row="2" Grid.Column="0"
                                 VerticalAlignment="Center"
                                 Background="Transparent"
                                 Height="26"
                                 Foreground="Aqua"
                                 IsIndeterminate="{Binding !IsDownloadDeterminate}"
                                 Value="{Binding DownloadPercentage}" />
                    <TextBlock Grid.Row="2" Grid.Column="0"
                               Background="Transparent"
                               HorizontalAlignment="Center"
                               VerticalAlignment="Center"
                               IsVisible="{Binding IsDownloadDeterminate}"
                               Text="{Binding DownloadPercentage, StringFormat={}{0:0}%, Mode=OneWay}" />
                </Grid>
            </DockPanel>

            <webview:WebView x:Name="webview" Focusable="True" Address="{Binding CurrentAddress}" />
        </DockPanel>
    </Panel>
</Window>