private static void OnMouseButtonDown(Object sender, MouseButtonEventArgs e)
{
SplitButton splitButton = sender as SplitButton;
if (!splitButton.IsKeyboardFocusWithin)
{
splitButton.Focus();
return;
}
if (Mouse.Captured == splitButton && e.OriginalSource == splitButton)
{
splitButton.CloseSubmenu();
return;
}
if (e.Source is MenuItem)
{
MenuItem menuItem = e.Source as MenuItem;
if (menuItem != null)
{
if (!menuItem.HasItems)
{
splitButton.CloseSubmenu();
menuItem.RaiseEvent(new RoutedEventArgs(MenuItem.ClickEvent, menuItem));
}
}
}
}
private static void OnIsSubmenuOpenChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
SplitButton splitButton = sender as SplitButton;
if ((Boolean)e.NewValue)
{
if (Mouse.Captured != splitButton)
{
Mouse.Capture(splitButton, CaptureMode.SubTree);
}
}
else
{
if (Mouse.Captured == splitButton)
{
Mouse.Capture(null);
}
if (splitButton.IsKeyboardFocused)
{
splitButton.Focus();
}
}
}
