Focussing a WebView after a MessageDialog is closed

Question

I've got a contentEditable based
editor within a WebView in
my Windows Store app. Certain keyboard shortcuts and buttons can cause a MessageDialog to
open (intentionally). When this dialog is dismissed, the editor no longer has focus. I've tried setting focus every way I know, and it won't work. Here's a sample app which illustrates the issue
MainPage.xaml
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<WebView x:Name="Editor" Margin="200"></WebView>
</Grid>
<Page.BottomAppBar>
<CommandBar x:Name="CommandBar_Editor" Visibility="Visible">
<AppBarButton Label="Debug" Icon="Setting">
<AppBarButton.Flyout>
<MenuFlyout>
<MenuFlyoutItem Text="show dialog, then focus" Click="MenuFlyoutItem_Click_1"/>
</MenuFlyout>
</AppBarButton.Flyout>
</AppBarButton>
</CommandBar>
</Page.BottomAppBar>
</Page>
MainPage.xaml.cs
public sealed partial class MainPage : Page
public MainPage()
this.InitializeComponent();
protected override void OnNavigatedTo(NavigationEventArgs e)
base.OnNavigatedTo(e);
Editor.NavigateToString("<script type='text/javascript'>function focus_please(){ document.getElementById('editor').focus(); }</script><div id='editor' contentEditable='true'>It was the best of times, it was the worst of times</div>");
private async void MenuFlyoutItem_Click_1(object sender, RoutedEventArgs e)
MessageDialog dialog = new MessageDialog("this should set focus to editor on close", "test");
UICommand okCommand = new UICommand("OK");
dialog.Commands.Add(okCommand);
IUICommand response = await dialog.ShowAsync();
if (response == okCommand)
await Window.Current.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
Editor.Focus(FocusState.Programmatic);
await Window.Current.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
Editor.InvokeScript("focus_please", null);
The code above will work if the user is using the touch interface. That is, if the message dialog is dismissed with a touch, the div within the WebView focusses. 
However, if the user is using Mouse / Keyboard and clicks to dismiss the dialog, the div will not focus.
Is this a bug in WinRT? Is there any known workaround? 

Answer 1

Hi Roryok - I worked on this issue when you had the StackOverflow question.  I could not get it to work only sometimes.  I am going to file a bug on this issue.
Matt Small - Microsoft Escalation Engineer - Forum Moderator
If my reply answers your question, please mark this post as answered.
NOTE: If I ask for code, please provide something that I can drop directly into a project and run (including XAML), or an actual application project. I'm trying to help a lot of people, so I don't have time to figure out weird snippets with undefined
objects and unknown namespaces.