Show Login UI outside of VS

Author: jcansdale

src/GitHub.VisualStudio.TestApp/MainWindow.xaml

@@ -7,6 +7,7 @@
         mc:Ignorable="d"
         Title="MainWindow" Height="450" Width="800">
     <Grid>
+        <Button Content="Login" HorizontalAlignment="Left" Margin="57,30,0,0" VerticalAlignment="Top" Width="133" Click="Login_Click" />
         <Button Content="Open from GitHub" HorizontalAlignment="Left" Margin="57,55,0,0" VerticalAlignment="Top" Width="133" Click="CloneOrOpenRepository_Click" />
         <Button Content="Create Repository" HorizontalAlignment="Left" Margin="57,80,0,0" VerticalAlignment="Top" Width="133" Click="CreateRepository_Click" />
     </Grid>

src/GitHub.VisualStudio.TestApp/MainWindow.xaml.cs

@@ -20,6 +20,11 @@ public MainWindow()
             InitializeComponent();
         }
 
+        private void Login_Click(object sender, RoutedEventArgs e)
+        {
+            LoginAsync();
+        }
+
         private void CloneOrOpenRepository_Click(object sender, RoutedEventArgs e)
         {
             CloneOrOpenRepositoryAsync();
@@ -30,13 +35,21 @@ private void CreateRepository_Click(object sender, RoutedEventArgs e)
             CreateRepositoryAsync();
         }
 
+        async Task LoginAsync()
+        {
+            var compositionContainer = CreateCompositionContainer();
+
+            var dialogService = compositionContainer.GetExportedValue<IDialogService>();
+            await dialogService.ShowLoginDialog();
+        }
+
         async Task CreateRepositoryAsync()
         {
             var compositionContainer = CreateCompositionContainer();
 
             var dialogService = compositionContainer.GetExportedValue<IDialogService>();
             var connection = await dialogService.ShowLoginDialog();
-            if(connection != null)
+            if (connection != null)
             {
                 await dialogService.ShowCreateRepositoryDialog(connection);
             }