public void TestConstructor()
{
increment = 0;
IEventTarget eventTarget = (IEventTarget)doc.DocumentElement;
// Add first event listener
eventTarget.AddEventListener("mousemove", new EventListener(OnMouseMove), false);
eventTarget.DispatchEvent(new Event("uievent", "mousemove", true, false));
Assert.AreEqual(1, increment);
// Add second event listener
// "If multiple identical EventListeners are registered on the same EventTarget with the same
// parameters the duplicate instances are discarded. They do not cause the EventListener to
// be called twice and since they are discarded they do not need to be removed with the removeEventListener method."
eventTarget.AddEventListener("mousemove", new EventListener(OnMouseMove), false);
eventTarget.DispatchEvent(new Event("uievent", "mousemove", true, false));
Assert.AreEqual(2, increment);
// Remove first event listener
eventTarget.RemoveEventListener("mousemove", new EventListener(OnMouseMove), false);
eventTarget.DispatchEvent(new Event("uievent", "mousemove", true, false));
Assert.AreEqual(2, increment);
// Remove second event listener
// "Calling removeEventListener with arguments which do not identify any currently registered EventListener on the EventTarget has no effect."
eventTarget.RemoveEventListener("mousemove", new EventListener(OnMouseMove), false);
eventTarget.DispatchEvent(new Event("uievent", "mousemove", true, false));
Assert.AreEqual(2, increment);
}
public void EventHandler(
IEvent @event)
{
IEventTarget target = @event.CurrentTarget;
events.Add(@event);
foreach (ListenerRemover listener in listeners)
{
target.RemoveEventListener("foo", new EventListener(listener.EventHandler), false);
}
}
