private static void OnIsOverflowOpenChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
RibbonQuickAccessToolBar qat = (RibbonQuickAccessToolBar)sender;
if (!qat.IsOverflowOpen)
{
// If the overflow drop down is closed due to
// an action of context menu then ContextMenuClosed
// event is never raised. Hence reset the flag.
qat.InContextMenu = false;
}
UIElement popupChild = qat._overflowPopup.TryGetChild();
RibbonHelper.HandleIsDropDownChanged(
qat,
delegate() { return(qat.IsOverflowOpen); },
popupChild,
popupChild);
if ((bool)(e.NewValue))
{
qat.RetainFocusOnEscape = RibbonHelper.IsKeyboardMostRecentInputDevice();
}
// Raise UI Automation Events
RibbonQuickAccessToolBarAutomationPeer peer = UIElementAutomationPeer.FromElement(qat) as RibbonQuickAccessToolBarAutomationPeer;
if (peer != null)
{
peer.RaiseExpandCollapseAutomationEvent(!(bool)e.OldValue, !(bool)e.NewValue);
}
}