public static void SubscribeNotifier(
this INotifyPropertyChanged n,
PropertyChangedEventHandler handler,
IList <string> targets)
{
Debug.Assert(targets.Count > 0);
var target = targets[0];
var broker = n.GetBroker();
if (targets.Count > 1)
{
var newTargets = targets.Skip(1).ToArray();
var newTarget = newTargets[0];
void H(object sender, PropertyChangedEventArgs args)
{
if (args is NotifierPropertyChangedEventArgs argt)
{
Unsubscribe(argt.OldValue, newTargets, handler);
Subscribe(argt.NewValue, newTargets, handler);
}
//handler(sender, args);
}
var value = broker.Subscribe(target, H);
if (value != null)
{
Subscribe(value, newTargets, handler);
}
PropertiesHandlers.TryAdd(Tuple.Create(handler, targets), H);
}
//if (n is INotifyCollectionChanged && target == "Item") return;
broker.Subscribe(target, handler);
PropertiesHandlers.TryAdd(Tuple.Create(handler, targets), handler);
}
