public EventsListener(Visual visual)
{
current = this;
this.visual = visual;
var type = visual.GetType();
// Cannot unregister for events once we've registered, so keep the registration simple and only do it once.
for (var baseType = type; baseType != null; baseType = baseType.BaseType)
{
if (registeredTypes.ContainsKey(baseType))
{
continue;
}
registeredTypes[baseType] = baseType;
var routedEvents = EventManager.GetRoutedEventsForOwner(baseType);
if (routedEvents != null)
{
foreach (var routedEvent in routedEvents)
{
EventManager.RegisterClassHandler(baseType, routedEvent, new RoutedEventHandler(HandleEvent), true);
}
}
}
}
public static void Stop()
{
current = null;
}