/// <summary>
/// Adds a handler that is called every time this resource is loaded. If the resource
/// is loaded at the time this handler is added, the handler is called immediately
/// To prevent deadlock, these handlers should not trigger a load/unload of the resource
/// </summary>
/// <param name="handler"></param>
public void AddResourceEventListener(IResourceEventListener listener)
{
// Prevent modification of loading status while doing this check
bool listenLoad = false;
bool listenUnload = false;
lock (HandlerLock)
{
if (IsLoaded)
{
listenLoad = true;
}
if (!IsLoaded)
{
listenUnload = true;
}
EventListeners.Add(new WeakReference <IResourceEventListener>(listener));
}
if (listenLoad)
{
listener.OnResourceLoaded(this);
}
if (listenUnload)
{
listener.OnResourceUnloaded(this);
}
}
public void RegisterListener(IResourceEventListener listener)
{
if (listeners == null)
{
listeners = new List <IResourceEventListener>();
}
listeners.Add(listener);
}
public void UnregisterListener(IResourceEventListener listener)
{
listeners.Remove(listener);
}
