private void AddListenerInternal <T>(Delegate originalHandler, EnvoyEventHandler wrapperHandler) where T : EventData
{
EventInfo eventInfo = GetEvent <T>();
if (eventInfo.DelegateLookup.ContainsKey(originalHandler))
{
Debug.LogWarning(string.Format("An attempt to attach method {0} to an event multiple times was detected. Ignoring", typeof(T)));
return;
}
eventInfo.DelegateLookup.Add(originalHandler, wrapperHandler);
eventInfo.EnvoyEvent += wrapperHandler;
}
/// <summary>
/// Removes an event listener.
/// </summary>
/// <param name="handler">
/// The event listener delegate.
/// </param>
/// <typeparam name="T">
/// The type of event listener is listening for.
/// </typeparam>
public void RemoveListener <T>(EnvoyEventHandler <T> handler) where T : EventData
{
RemoveListenerInternal <T>(handler);
}
/// <summary>
/// Adds an event listener.
/// </summary>
/// <param name="handler">
/// The event listener delegate.
/// </param>
/// <typeparam name="T">
/// The type of event listener is listening for.
/// </typeparam>
public void AddListener <T>(EnvoyEventHandler <T> handler) where T : EventData
{
AddListenerInternal <T>(handler, args => handler((T)args));
}
