public void RegisterCallback <TEventType, TCallbackArgs>(EventCallback <TEventType, TCallbackArgs> callback, TCallbackArgs userArgs, 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)
{
var functor = callbackList.Find(eventTypeId, callback, callbackPhase) as EventCallbackFunctor <TEventType, TCallbackArgs>;
if (functor != null)
{
functor.userArgs = userArgs;
return;
}
}
callbackList = GetCallbackListForWriting();
callbackList.Add(new EventCallbackFunctor <TEventType, TCallbackArgs>(callback, userArgs, callbackPhase));
}
internal bool TryGetUserArgs <TEventType, TCallbackArgs>(EventCallback <TEventType, TCallbackArgs> callback, TrickleDown useTrickleDown, out TCallbackArgs userArgs) where TEventType : EventBase <TEventType>, new()
{
userArgs = default(TCallbackArgs);
if (callback == null)
{
return(false);
}
EventCallbackList list = GetCallbackListForReading();
long eventTypeId = EventBase <TEventType> .TypeId();
var callbackPhase = useTrickleDown == TrickleDown.TrickleDown ? CallbackPhase.TrickleDownAndTarget : CallbackPhase.TargetAndBubbleUp;
var functor = list.Find(eventTypeId, callback, callbackPhase) as EventCallbackFunctor <TEventType, TCallbackArgs>;
if (functor == null)
{
return(false);
}
userArgs = functor.userArgs;
return(true);
}