sourcegit/src/Views/Launcher.axaml

<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                    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"
                    xmlns:s="using:SourceGit"
                    xmlns:vm="using:SourceGit.ViewModels"
                    xmlns:m="using:SourceGit.Models"
                    xmlns:c="using:SourceGit.Converters"
                    xmlns:v="using:SourceGit.Views"
                    mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
                    x:Class="SourceGit.Views.Launcher"
                    x:DataType="vm:Launcher"
                    Icon="/App.ico"
                    Title="SourceGit"
                    MinWidth="1280" MinHeight="720"
                    WindowStartupLocation="CenterScreen"> 
  <Grid x:Name="MainLayout">
    <Grid.RowDefinitions>
      <RowDefinition Height="38"/>
      <RowDefinition Height="*"/>
    </Grid.RowDefinitions>

    <!-- Custom TitleBar -->
    <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto">
      <!-- Bottom border -->
      <Border Grid.Column="0" Grid.ColumnSpan="3"
              Background="{DynamicResource Brush.TitleBar}"
              BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border0}"
              DoubleTapped="OnTitleBarDoubleTapped"
              PointerPressed="BeginMoveWindow"
              PointerMoved="MoveWindow"
              PointerReleased="EndMoveWindow"/>

      <!-- Caption Buttons (macOS) -->
      <Border Grid.Column="0" VerticalAlignment="Stretch" Margin="2,0,8,3" IsVisible="{OnPlatform False, macOS=True}">
        <v:CaptionButtonsMacOS VerticalAlignment="Bottom"/>
      </Border>

      <!-- Menu (Windows/Linux) -->
      <Button Grid.Column="0" Classes="icon_button" VerticalAlignment="Bottom" IsVisible="{OnPlatform True, macOS=False}">
        <Button.Margin>
          <OnPlatform Default="4,0,2,3" macOS="4,0,6,3"/>
        </Button.Margin>
        
        <Button.Flyout>
          <MenuFlyout Placement="BottomEdgeAlignedLeft" VerticalOffset="-8">
            <MenuItem Header="{DynamicResource Text.Preference}" Command="{x:Static s:App.OpenPreferenceCommand}" InputGesture="Ctrl+Shift+P">
              <MenuItem.Icon>
                <Path Width="14" Height="14" Data="{StaticResource Icons.Settings}"/>
              </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="{DynamicResource Text.Hotkeys}" Command="{x:Static s:App.OpenHotkeysCommand}">
              <MenuItem.Icon>
                <Path Width="14" Height="14" Data="{StaticResource Icons.Hotkeys}"/>
              </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="-"/>
            <MenuItem Header="{DynamicResource Text.SelfUpdate}" Command="{x:Static s:App.CheckForUpdateCommand}">
              <MenuItem.Icon>
                <Path Width="14" Height="14" Data="{StaticResource Icons.SoftwareUpdate}"/>
              </MenuItem.Icon>
            </MenuItem>
            <MenuItem Header="-"/>
            <MenuItem Header="{DynamicResource Text.About}" Command="{x:Static s:App.OpenAboutCommand}">
              <MenuItem.Icon>
                <Path Width="14" Height="14" Data="{StaticResource Icons.Info}"/>
              </MenuItem.Icon>
            </MenuItem>
          </MenuFlyout>
        </Button.Flyout>
        <Path Width="12" Height="12" Data="{StaticResource Icons.Menu}"/>
      </Button>

      <!-- Pages Tabs-->
      <v:LauncherTabBar Grid.Column="1" Height="30" VerticalAlignment="Bottom"/>

      <!-- Caption Buttons (Windows/Linux)-->
      <Border Grid.Column="2" Margin="32,0,0,0" IsVisible="{OnPlatform True, macOS=False}">
        <v:CaptionButtons Height="30" VerticalAlignment="Top"/>
      </Border>
    </Grid>

    <!-- Page body -->
    <ContentControl Grid.Row="1" Background="{DynamicResource Brush.ToolBar}" Content="{Binding ActivePage.Data}">
      <ContentControl.DataTemplates>
        <DataTemplate DataType="vm:Welcome">
          <v:Welcome/>
        </DataTemplate>

        <DataTemplate DataType="vm:Repository">
          <v:Repository/>
        </DataTemplate>
      </ContentControl.DataTemplates>
    </ContentControl>

    <!-- Popup container -->
    <Grid Grid.Row="1" Margin="0,36,0,0" IsVisible="{Binding ActivePage.Popup, Converter={x:Static ObjectConverters.IsNotNull}}" ClipToBounds="True">
      <Border Background="Transparent" PointerPressed="OnPopupCancelByClickMask"/>

      <Border Width="500" HorizontalAlignment="Center" VerticalAlignment="Top" Effect="drop-shadow(0 0 8 #8F000000)" CornerRadius="0,0,8,8" ClipToBounds="True">                
        <ContentControl Content="{Binding ActivePage.Popup}" Background="{DynamicResource Brush.Popup}">
          <ContentControl.DataTemplates>
            <DataTemplate DataType="vm:Popup">  
              <StackPanel Orientation="Vertical" Background="{DynamicResource Brush.Popup}">
                <!-- Popup Widget -->
                <ContentPresenter Margin="8,16,8,8"
                                  Content="{Binding View}"
                                  IsHitTestVisible="{Binding InProgress, Converter={x:Static BoolConverters.Not}}"/>

                <!-- Options -->
                <StackPanel Margin="8,4,8,8"
                            Height="32"
                            Orientation="Horizontal"
                            HorizontalAlignment="Right"
                            IsVisible="{Binding InProgress, Converter={x:Static BoolConverters.Not}}">
                  <Button Classes="flat primary"
                          Width="80"
                          Content="{DynamicResource Text.Sure}"
                          Click="OnPopupSure"
                          HotKey="Enter"/>
                  <Button Classes="flat"
                          Width="80"
                          Margin="8,0,0,0"
                          Content="{DynamicResource Text.Cancel}"
                          Click="OnPopupCancel"/>
                </StackPanel>

                <!-- Running -->
                <v:PopupRunningStatus Margin="12,8"
                                      Description="{Binding ProgressDescription}"
                                      IsVisible="{Binding InProgress}"/>
              </StackPanel>
            </DataTemplate>
          </ContentControl.DataTemplates>
        </ContentControl>
      </Border>
    </Grid>

    <!-- Notification container -->
    <Grid Grid.Row="1" Width="360" Margin="0,36,0,0" HorizontalAlignment="Right" VerticalAlignment="Top">
      <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
        <ItemsControl ItemsSource="{Binding ActivePage.Notifications}">
          <ItemsControl.ItemTemplate>
            <DataTemplate DataType="vm:Notification">
              <Border Margin="10,6" HorizontalAlignment="Stretch" VerticalAlignment="Top" Effect="drop-shadow(0 0 12 #A0000000)">
                <Border Padding="8" CornerRadius="6" Background="{DynamicResource Brush.Popup}">
                  <Grid RowDefinitions="26,Auto,32">
                    <StackPanel Grid.Row="0" Margin="8,0,0,0" Orientation="Horizontal" IsVisible="{Binding IsError}">
                      <Path Width="14" Height="14" Data="{StaticResource Icons.Error}" Fill="Red"/>
                      <TextBlock Margin="8,0,0,0" FontWeight="Bold" FontSize="14" Text="{DynamicResource Text.Launcher.Error}"/>
                    </StackPanel>
                    <StackPanel Grid.Row="0" Margin="8,0,0,0" Orientation="Horizontal" IsVisible="{Binding !IsError}">
                      <Path Width="14" Height="14" Data="{StaticResource Icons.Info}" Fill="Green"/>
                      <TextBlock Margin="8,0,0,0" FontWeight="Bold" FontSize="14" Text="{DynamicResource Text.Launcher.Info}"/>
                    </StackPanel>

                    <TextBox Grid.Row="1"
                             Classes="no_background no_border"
                             IsReadOnly="True"
                             TextWrapping="Wrap"
                             ScrollViewer.VerticalScrollBarVisibility="Auto"
                             MaxHeight="100"
                             Margin="8" Padding="0"
                             VerticalContentAlignment="Top"
                             Text="{Binding Message}"/>

                    <StackPanel Grid.Row="2" Margin="0,4,0,0" Orientation="Horizontal" HorizontalAlignment="Right">
                      <Button Classes="flat"
                              Margin="0,0,8,0"
                              Command="{Binding CopyMessage}"
                              Content="{DynamicResource Text.CopyMessage}"
                              IsVisible="{Binding IsError}"/>
                      
                      <Button Classes="flat primary"
                              Margin="0,0"
                              Content="{DynamicResource Text.Close}"
                              Click="OnDismissNotification"/>
                    </StackPanel>
                  </Grid>
                </Border>
              </Border>
            </DataTemplate>
          </ItemsControl.ItemTemplate>
        </ItemsControl>
      </ScrollViewer>
    </Grid>
  </Grid>
</v:ChromelessWindow>