private bool remove_listener(string event_name, PurpleLogCallback listener)
{
if (eventListeners.ContainsKey (event_name))
{
eventListeners[event_name] -= listener;
return true;
}
return false;
}
public static bool RemoveListener(string event_name, PurpleLogCallback listener)
{
return Instance.remove_listener (event_name, listener);
}
// EVENT DISPATCH ////////////////////
private void add_listener(string event_name, PurpleLogCallback listener)
{
if (!eventListeners.ContainsKey (event_name))
{
eventListeners.Add(event_name, null);
}
// prevent chaining the same delegate listener multiple times
if(eventListeners[event_name] != null)
{
Delegate [] callbackList = eventListeners[event_name].GetInvocationList();
foreach(PurpleLogCallback singleCallback in callbackList)
{
if(listener.Method.Name == singleCallback.Method.Name)
return;
}
}
// delegates can be chained using addition
eventListeners[event_name] += listener;
}
public static void AddListener(string event_name, PurpleLogCallback listener)
{
Instance.add_listener(event_name, listener);
}
