// Called when a KeyDownTarget is specified and a KeyDown event is detected on the source
private static void OnKeyDownTargetKeyDown(object sender, KeyEventArgs e)
{
// Ignore handled events
if (e.Handled)
{
return;
}
// Ignore navigation keys
if (e.Key == Key.Left || e.Key == Key.Right || e.Key == Key.Up || e.Key == Key.Down ||
e.Key == Key.Tab || e.Key == Key.Escape || e.Key == Key.Return || e.Key == Key.Enter ||
e.Key == Key.PageUp || e.Key == Key.PageDown || e.Key == Key.Home || e.Key == Key.End || e.Key == Key.LeftCtrl || e.Key == Key.RightCtrl)
{
return;
}
if (Keyboard.Modifiers == ModifierKeys.Control)
{
return;
}
DependencyObject keySender = sender as DependencyObject;
Fx.Assert(keySender != null, "keySender should not be null");
if (keySender == null)
{
return;
}
FrameworkElement keyTarget = GetKeyDownTarget(keySender);
Fx.Assert(keyTarget != null, "keyTarget should not be null");
if (keyTarget == null)
{
return;
}
// Find a focusable element on the target, set focus to it, and send the keys over
FrameworkElement focusable = VisualTreeUtils.FindFocusableElement <FrameworkElement>(keyTarget);
if (focusable != null && focusable == Keyboard.Focus(focusable))
{
focusable.RaiseEvent(e);
}
}