public static void Unsubscribe <TPayload>(Action <TPayload> subscriber)
{
lock (_subscriptions)
{
ChannelSubscription <TPayload> eventSubscription = _subscriptions.Cast <ChannelSubscription <TPayload> >().FirstOrDefault(evt => evt.Action == subscriber);
if (eventSubscription != null)
{
_subscriptions.Remove(eventSubscription);
}
}
}
public static ChannelSubscriptionToken Subscribe <TPayload>(Action <TPayload> action, ThreadOption threadOption, bool keepSubscriberReferenceAlive, Predicate <TPayload> filter)
{
DelegateReference actionReference = new DelegateReference(action, keepSubscriberReferenceAlive);
DelegateReference filterReference;
filterReference = filter != null ? new DelegateReference(filter, keepSubscriberReferenceAlive) : new DelegateReference(new Predicate <TPayload>(obj => true), true);
ChannelSubscription <TPayload> subscription;
switch (threadOption)
{
case ThreadOption.PublisherThread:
subscription = new ChannelSubscription <TPayload>(actionReference, filterReference);
break;
case ThreadOption.BackgroundThread:
// subscription = new BackgroundEventSubscription<TPayload>(actionReference, filterReference);
throw new NotImplementedException();
case ThreadOption.UIThread:
subscription = new DispatcherChannelSubscription <TPayload>(actionReference, filterReference, UIDispatcher);
break;
default:
subscription = new ChannelSubscription <TPayload>(actionReference, filterReference);
break;
}
//return base.InternalSubscribe(subscription);
subscription.SubscriptionToken = new ChannelSubscriptionToken();
lock (_subscriptions)
{
_subscriptions.Add(subscription);
}
return(subscription.SubscriptionToken);
}