private void MenuFlyout_Opened(object sender, object e)
{
if (_parentMenu.UpdateMenuItemsFlyoutPlacement() && !_menuFlyoutPlacementChanged)
{
_menuFlyoutPlacementChanged = true;
ShowMenu();
}
_parentMenu.CalculateBounds();
IsOpened = true;
VisualStateManager.GoToState(this, "Opened", true);
_parentMenu.IsInTransitionState = false;
if (!_menuFlyoutRepositioned)
{
var popup = VisualTreeHelper.GetOpenPopups(Window.Current).FirstOrDefault(p => p.Child is MenuFlyoutPresenter);
if (popup != null)
{
var mfp = (MenuFlyoutPresenter)popup.Child;
var height = mfp.ActualHeight;
var width = mfp.ActualWidth;
var flytoutButtonPoint = FlyoutButton.TransformToVisual(Window.Current.Content).TransformPoint(new Point(0, 0));
if ((width > Window.Current.Bounds.Width - flytoutButtonPoint.X &&
(MenuFlyout.Placement == FlyoutPlacementMode.Bottom)) ||
(height > Window.Current.Bounds.Height - flytoutButtonPoint.Y &&
(MenuFlyout.Placement == FlyoutPlacementMode.Right)))
{
ShowMenuRepositioned(width, height);
}
}
}
}
private void MenuFlyout_Opened(object sender, object e)
{
if (_parentMenu.UpdateMenuItemsFlyoutPlacement() && !_menuFlyoutPlacementChanged)
{
_menuFlyoutPlacementChanged = true;
ShowMenu();
}
_parentMenu.CalculateBounds();
IsOpened = true;
VisualStateManager.GoToState(this, "Opened", true);
_parentMenu.IsInTransitionState = false;
if (!_menuFlyoutRepositioned)
{
IReadOnlyList <Popup> popups;
UIElement content;
double outerContentWidth;
double outerContentHeight;
#if !HAS_UNO
if (ControlHelpers.IsXamlRootAvailable && MenuFlyout.XamlRoot != null)
{
popups = VisualTreeHelper.GetOpenPopupsForXamlRoot(MenuFlyout.XamlRoot);
content = MenuFlyout.XamlRoot.Content;
outerContentWidth = MenuFlyout.XamlRoot.Size.Width;
outerContentHeight = MenuFlyout.XamlRoot.Size.Height;
}
else
#endif
{
popups = VisualTreeHelper.GetOpenPopups(Windows.UI.Xaml.Window.Current);
content = Windows.UI.Xaml.Window.Current.Content;
outerContentWidth = Windows.UI.Xaml.Window.Current.Bounds.Width;
outerContentHeight = Windows.UI.Xaml.Window.Current.Bounds.Height;
}
var popup = popups.FirstOrDefault(p => p.Child is MenuFlyoutPresenter);
if (popup != null)
{
var mfp = (MenuFlyoutPresenter)popup.Child;
var height = mfp.ActualHeight;
var width = mfp.ActualWidth;
var flytoutButtonPoint = FlyoutButton.TransformToVisual(content).TransformPoint(new Point(0, 0));
if ((width > outerContentWidth - flytoutButtonPoint.X &&
(MenuFlyout.Placement == FlyoutPlacementMode.Bottom)) ||
(height > outerContentHeight - flytoutButtonPoint.Y &&
(MenuFlyout.Placement == FlyoutPlacementMode.Right)))
{
ShowMenuRepositioned(width, height);
}
}
}
}
