public StateListener AddListener(StateListener listener, int priority)
{
// FIXME: chưa làm đăng ký event
_listeners.Add(listener);
return(listener);
}
public void RemoveListener(StateListener listener)
{
if (_isDispatching)
{
return;
}
_listeners.Remove(listener);
}
public void AddListener(StateListener listener, int priority = 0)
{
if (_isDispatching || listener == null || IsRegistered(listener))
{
return;
}
_listeners.Insert(priority, listener);
}
public bool CanDispatch(StateListener listener)
{
return(listener != null);
}
public void Dispatch(StateListener listener)
{
listener?.OnEvent(Data);
}
public bool IsRegistered(StateListener listener)
{
return(_listeners.Find(x => x == listener) != null);
}
public StateListener AddListener(Callback callback, int priority = 0)
{
var listener = new StateListener(0, callback);
return(AddListener(listener, priority));
}
