| private ApplyAnimation ( Position position, bool animateOpacity, bool resetShowFrame = true ) : void | ||
| position | Position | |
| animateOpacity | bool | |
| resetShowFrame | bool | |
| return | void | |
private static void PositionChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
Flyout flyout = (Flyout)dependencyObject;
bool isOpen = flyout.IsOpen;
bool flag = isOpen;
if (!isOpen || !flyout.AnimateOnPositionChange)
{
flyout.ApplyAnimation((MahApps.Metro.Controls.Position)e.NewValue, flyout.AnimateOpacity, false);
}
else
{
flyout.ApplyAnimation((MahApps.Metro.Controls.Position)e.NewValue, flyout.AnimateOpacity, true);
VisualStateManager.GoToState(flyout, "Hide", true);
}
if (flag && flyout.AnimateOnPositionChange)
{
flyout.ApplyAnimation((MahApps.Metro.Controls.Position)e.NewValue, flyout.AnimateOpacity, true);
VisualStateManager.GoToState(flyout, "Show", true);
}
}
private static void IsOpenedChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
Flyout flyout = (Flyout)dependencyObject;
Action newValue = () => {
if (e.NewValue != e.OldValue)
{
if (!flyout.AreAnimationsEnabled)
{
if (!(bool)e.NewValue)
{
flyout.Focus();
flyout.Hide();
}
else
{
flyout.Visibility = System.Windows.Visibility.Visible;
flyout.TryFocusElement();
}
VisualStateManager.GoToState(flyout, (!(bool)e.NewValue ? "HideDirect" : "ShowDirect"), true);
}
else
{
if (!(bool)e.NewValue)
{
flyout.Focus();
if (flyout.hideStoryboard == null)
{
flyout.Hide();
}
else
{
flyout.hideStoryboard.Completed += new EventHandler(flyout.HideStoryboard_Completed);
}
}
else
{
if (flyout.hideStoryboard != null)
{
flyout.hideStoryboard.Completed -= new EventHandler(flyout.HideStoryboard_Completed);
}
flyout.Visibility = System.Windows.Visibility.Visible;
flyout.ApplyAnimation(flyout.Position, flyout.AnimateOpacity, true);
flyout.TryFocusElement();
}
VisualStateManager.GoToState(flyout, (!(bool)e.NewValue ? "Hide" : "Show"), true);
}
}
flyout.RaiseEvent(new RoutedEventArgs(Flyout.IsOpenChangedEvent));
};
flyout.Dispatcher.BeginInvoke(DispatcherPriority.Background, newValue);
}