private static void OnIsAutomationFocusedChanged(DependencyObject dobj, DependencyPropertyChangedEventArgs e)
{
if (AutomationPeerCache._objThatIsBinding == dobj)
{
return;
}
AutomationPeer automationPeer = AutomationPeerCache.GetAutomationPeer(dobj) ?? UIElementAutomationPeer.FromElement(dobj as UIElement);
if (automationPeer == null)
{
return;
}
if (AutomationPeer.ListenerExists(AutomationEvents.PropertyChanged))
{
automationPeer.RaisePropertyChangedEvent(SelectionItemPatternIdentifiers.IsSelectedProperty, e.OldValue, e.NewValue);
automationPeer.RaisePropertyChangedEvent(AutomationElementIdentifiers.HasKeyboardFocusProperty, e.OldValue, e.NewValue);
}
if (AutomationPeer.ListenerExists(AutomationEvents.AutomationFocusChanged))
{
automationPeer.RaiseAutomationEvent(AutomationEvents.AutomationFocusChanged);
}
if (!(automationPeer is ItemAutomationPeer) || !AutomationPeer.ListenerExists(AutomationEvents.SelectionItemPatternOnElementSelected))
{
return;
}
automationPeer.RaiseAutomationEvent(AutomationEvents.SelectionItemPatternOnElementSelected);
}
public static T Create <T>(UIElement element, params object[] args) where T : AutomationPeer
{
AutomationPeer automationPeer = AutomationPeerCache.GetAutomationPeer((DependencyObject)element);
if (automationPeer == null)
{
if (args.Length == 0)
{
automationPeer = (AutomationPeer)Activator.CreateInstance(typeof(T), new object[1]
{
(object)element
});
}
else
{
automationPeer = (AutomationPeer)Activator.CreateInstance(typeof(T), args);
}
if (automationPeer != null)
{
AutomationPeerCache.SetAutomationPeer((DependencyObject)element, automationPeer);
AutomationPeerCache.RegisterFocusEvents((DependencyObject)element);
}
}
return(automationPeer as T);
}
public static void RegisterFocusEvents(DependencyObject obj)
{
if (AutomationPeerCache.GetIsAutomationFocused(obj))
{
return;
}
AutomationPeerCache.RegisterFocusEvents(obj, "IsKeyboardFocused");
}
public static void RegisterFocusEvents(DependencyObject obj, AutomationPeer associatedPeer)
{
if (AutomationPeerCache.GetIsAutomationFocused(obj))
{
return;
}
if (AutomationPeerCache.GetAutomationPeer(obj) == null && UIElementAutomationPeer.FromElement(obj as UIElement) == null)
{
AutomationPeerCache.SetAutomationPeer(obj, associatedPeer);
}
AutomationPeerCache.RegisterFocusEvents(obj, "IsKeyboardFocused");
}