public bool IsEventListenerRegistered(IEventObserver observer, EventId id)
{
EventObservers eventObservers = this.eventIdToObservers[(int)id];
if (eventObservers == null)
{
return(false);
}
EventObserverPriorityList list = eventObservers.List;
return(list.IndexOf(observer) >= 0);
}
public void UnregisterObserver(IEventObserver observer, EventId id)
{
EventObservers eventObservers = this.eventIdToObservers[(int)id];
if (eventObservers != null)
{
EventObserverPriorityList list = eventObservers.List;
MutableIterator iter = eventObservers.Iter;
int num = list.IndexOf(observer);
if (num >= 0)
{
list.RemoveAt(num);
iter.OnRemove(num);
if (list.Count == 0)
{
this.eventIdToObservers[(int)id] = null;
}
}
}
}
public void RegisterObserver(IEventObserver observer, EventId id, EventPriority priority)
{
if (observer == null)
{
return;
}
EventObservers eventObservers = this.eventIdToObservers[(int)id];
if (eventObservers == null)
{
eventObservers = new EventObservers();
this.eventIdToObservers[(int)id] = eventObservers;
}
EventObserverPriorityList list = eventObservers.List;
if (list.IndexOf(observer) < 0)
{
list.Add(observer, (int)priority);
}
}
public void SendEvent(EventId id, object cookie)
{
EventObservers eventObservers = this.eventIdToObservers[(int)id];
if (eventObservers != null)
{
EventObserverPriorityList list = eventObservers.List;
MutableIterator iter = eventObservers.Iter;
iter.Init(list.Count);
while (iter.Active())
{
IEventObserver element = list.GetElement(iter.Index);
if (element.OnEvent(id, cookie) == EatResponse.Eaten)
{
break;
}
iter.Next();
}
iter.Reset();
}
}
