private bool ShouldRegisterCallback(long eventTypeId, Delegate callback, CallbackPhase phase)
{
bool result;
if (callback == null)
{
result = false;
}
else
{
EventCallbackList callbackListForReading = this.GetCallbackListForReading();
result = (callbackListForReading == null || !callbackListForReading.Contains(eventTypeId, callback, phase));
}
return(result);
}
bool ShouldRegisterCallback(long eventTypeId, Delegate callback, CallbackPhase phase)
{
if (callback == null)
{
return(false);
}
EventCallbackList callbackList = GetCallbackListForReading();
if (callbackList != null)
{
return(!callbackList.Contains(eventTypeId, callback, phase));
}
return(true);
}
public void RegisterCallback <TEventType>(EventCallback <TEventType> callback, TrickleDown useTrickleDown = TrickleDown.NoTrickleDown) where TEventType : EventBase <TEventType>, new()
{
if (callback == null)
{
throw new ArgumentException("callback parameter is null");
}
long eventTypeId = EventBase <TEventType> .TypeId();
var callbackPhase = useTrickleDown == TrickleDown.TrickleDown ? CallbackPhase.TrickleDownAndTarget : CallbackPhase.TargetAndBubbleUp;
EventCallbackList callbackList = GetCallbackListForReading();
if (callbackList == null || callbackList.Contains(eventTypeId, callback, callbackPhase) == false)
{
callbackList = GetCallbackListForWriting();
callbackList.Add(new EventCallbackFunctor <TEventType>(callback, callbackPhase));
}
}
