private static void HandleIsFullscreenChanged(DependencyObject d, DependencyPropertyChangedEventArgs <bool> e)
{
if (!(d is Window window))
{
return;
}
if (e.NewValue)
{
var tracker = new WindowStateTracker(window);
SetTracker(window, tracker);
// Normal first as maximize definitely needs to happen after windowstyle=none
// if it's already maximized that would break this
window.WindowState = WindowState.Normal;
window.WindowStyle = WindowStyle.None;
window.WindowState = WindowState.Maximized;
// Force topmost by changing it (false first gurantees change)
window.Topmost = false;
window.Topmost = true;
//((FrameworkElement)window.Content).Margin = GetFullscreenRootOffsetMargin(window);
tracker.WatchForStateChange();
}
else
{
var tracker = GetTracker(window);
// Check if the tracker exists, if it
if (tracker != null)
{
tracker.Restore();
}
}
}
protected override void OnSizeChanged(EventArgs e)
{
base.OnSizeChanged(e);
WindowStateTracker.SetWindowState(this);
}
private static void SetTracker(DependencyObject obj, WindowStateTracker value) => obj.SetValue(TrackerProperty, value);