Opening the Tab Switcher from an Embedded Web View

Hello,

Did you set our docking:InteropFocusTracking.IsEnabled="True" attached property on your HwndHost?  If so, it should be watching the HwndHost's KeyUp so it can detect switcher close scenarios.

I am now setting this property to true right after the HwndHost is added to the visual tree, but it doesn't seem to change anything unfortunately.

browserView.InitializeFrom(m_browser); // this sets browserView.Content to an HwndHost

InteropFocusTracking.SetIsEnabled((HwndHost)browserView.Content, true);

I verified in Visual Studio's Live Visual Tree window that the property is indeed set to true.

Hello,

Could you make a new simple sample project showing this scenario and send it to our support address, referencing this thread in your email?  Be sure to exclude the bin/obj folders from the .zip you send so it doesn't get spam blocked.  Then we can debug with that and see why it's not working.  Thank you!

I've just sent a sample project that reproduces the issue.

My problem has been solved! (Thanks Bill!). For posterity, here was the solution:

// - m_browser is a DotNetBrowser.Browser.IBrowser
// - this code is run from a custom control that wraps a DotNetBrowser.Wpf.BrowserView
m_browser.Keyboard.KeyPressed.Handler = new Handler<IKeyPressedEventArgs, InputEventResponse>(e =>
{
    if (e.Modifiers.ControlDown && e.VirtualKey == KeyCode.Tab)
    {
        Application.Current.Dispatcher.InvokeAsync(() =>
        {
            if (VisualTreeHelperExtended.GetAncestor<DockingWindow>(this) is { } dockingWindow)
            {
                // This is the secret sauce: Unfocus the web browser and then focus the docking window
                m_browser.Unfocus();
                dockingWindow.Focus();

                System.Windows.Input.KeyEventArgs args = new(
                    Keyboard.PrimaryDevice,
                    PresentationSource.FromDependencyObject(this),
                    0,
                    Key.Tab)
                {
                    RoutedEvent = PreviewKeyDownEvent,
                    Source = this
                };

                InputManager.Current.ProcessInput(args);

                args.RoutedEvent = KeyDownEvent;
                InputManager.Current.ProcessInput(args);
            }
        });

        return InputEventResponse.Suppress;
    }

    return InputEventResponse.Proceed;
});