/// <summary>
/// Subject에 바인딩된 Listener를 해제합니다
/// </summary>
public static void UnbindListener <T>(IListenerObserver <T> listener) where T : ListenerSubject
{
var subject = _subjects.First(sub => sub.GetType() == typeof(T));
if (subject != null)
{
subject.Remove(listener);
}
}
/// <summary>
/// Subject에 Listener를 바인딩합니다
/// </summary>
/// <exception cref="ArgumentException"></exception>
public static void BindListener <T>(IListenerObserver <T> listener) where T : ListenerSubject
{
var subject = _subjects.First(sub => sub.GetType() == typeof(T));
if (subject != null)
{
subject.Add(listener);
}
else
{
throw new ArgumentException("Couldn't bind listener, because subject is not added");
}
}
/// <summary>
/// Listener를 제거합니다.
/// </summary>
public virtual void Remove(IListenerObserver <ListenerSubject> sender)
{
_listeners.Remove(sender);
}
/// <summary>
/// Listener를 추가합니다.
/// </summary>
public virtual void Add(IListenerObserver <ListenerSubject> sender)
{
_listeners.Add(sender);
}
