public void FireChangeEvent(ProtocolFeature feature)
{
List <Component> listListener;
if (this.pushEventListener.TryGetValue(feature, out listListener) == false)
{
return;
}
List <Component> observerToRemove = new List <Component> ();
foreach (Component observer in listListener)
{
if (observer == null)
{
observerToRemove.Add(observer);
}
else
{
observer.SendMessage(EnumUtil.GetString(feature), null, SendMessageOptions.DontRequireReceiver);
}
}
// 删除无用的观察者
foreach (Component observer in observerToRemove)
{
listListener.Remove(observer);
}
}
public bool RemoveObserver(ProtocolFeature feature, Component observer)
{
List <Component> listListener;
if (this.pushEventListener.TryGetValue(feature, out listListener) == false)
{
return(false);
}
return(listListener.Remove(observer));
}
public bool AddNotification(ProtocolFeature feature, Component observer)
{
List <Component> listListener;
if (this.pushEventListener.TryGetValue(feature, out listListener) == false)
{
listListener = new List <Component> ();
this.pushEventListener [feature] = listListener;
}
if (listListener.Contains(observer))
{
return(false);
}
listListener.Add(observer);
return(true);
}