private static bool MoveFocusHorizontally(System.Windows.Controls.MenuItem menuItem, FocusNavigationDirection direction)
{
bool flag = menuItem.MoveFocus(new TraversalRequest(direction));
if (Equals(menuItem, Keyboard.FocusedElement))
{
menuItem.IsSubmenuOpen = false;
}
return(flag);
}
internal static bool HandleKeyDownForToolBarHostedMenuItem(System.Windows.Controls.MenuItem menuItem, KeyEventArgs e)
{
if (e.Handled || !ToolBar.GetIsToolBarHostedMenuItem(menuItem))
{
return(false);
}
var ancestor = menuItem.FindAncestor <System.Windows.Controls.ToolBar>();
if (ancestor == null)
{
return(false);
}
var orientation = ancestor.Orientation;
CorrectKeysForNavigation(e.Key, ancestor.FlowDirection, orientation);
switch (e.Key)
{
case Key.Escape:
if (ancestor.IsOverflowOpen && !menuItem.IsSubmenuOpen)
{
ancestor.IsOverflowOpen = false;
e.Handled = true;
}
break;
case Key.Left:
if (orientation == Orientation.Horizontal)
{
e.Handled = MoveFocusHorizontally(menuItem, FocusNavigationDirection.Previous);
}
break;
case Key.Up:
if (orientation == Orientation.Vertical && !menuItem.IsSubmenuOpen)
{
e.Handled = menuItem.MoveFocus(new TraversalRequest(FocusNavigationDirection.Previous));
}
break;
case Key.Right:
if (orientation == Orientation.Horizontal)
{
e.Handled = MoveFocusHorizontally(menuItem, FocusNavigationDirection.Next);
}
break;
case Key.Down:
if (orientation == Orientation.Vertical && !menuItem.IsSubmenuOpen)
{
e.Handled = menuItem.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
}
break;
}
return(e.Handled);
}
