public void Subscribe(CremaEventListener listener)
{
if (this.listeners.Any() == false)
{
this.OnSubscribe();
}
this.listeners.Add(listener);
}
public void Unsubscribe(CremaEventListener listener)
{
this.listeners.Remove(listener);
if (this.listeners.Any() == false)
{
this.OnUnsubscribe();
}
}
private void RemoveEventListener(CremaEvents eventName, CremaEventListener listener)
{
if (this.Context.Properties[typeof(CremaEventListenerContext)] is CremaEventListenerContext context)
{
context.RemoveEventListener(eventName, listener);
}
else
{
throw new NotImplementedException();
}
}
public void RemoveEventListener(CremaEvents eventName, CremaEventListener listener)
{
if (this.eventListeners.ContainsKey(eventName) == true)
{
var eventHandler = this.eventListeners[eventName];
eventHandler.Unsubscribe(listener);
}
else
{
throw new NotImplementedException();
}
}
private void AddEventListener(CremaEvents eventName, CremaEventListener listener)
{
if (this.Context.Properties.ContainsKey(typeof(CremaEventListenerContext)) == false)
{
this.eventListenerContext = new CremaEventListenerContext(this.eventListeners);
this.Context.Properties[typeof(CremaEventListenerContext)] = this.eventListenerContext;
}
if (this.eventListenerContext != null)
{
this.eventListenerContext.AddEventListener(eventName, listener);
}
else
{
throw new NotImplementedException();
}
}
