private void OnValueChanged(IStyledElement?next)
{
if (next == null || _ancestorType.IsAssignableFrom(next.GetType()))
{
_subject.OnNext(next);
}
else
{
_child?.Dispose();
_child = new FinderNode(next, _ancestorType);
_child.Observable.Subscribe(OnChildValueChanged);
_child.Init();
}
}
public static IObservable <IStyledElement?> Create(IStyledElement control, Type ancestorType)
{
return(new AnonymousObservable <IStyledElement?>(observer =>
{
var finder = new FinderNode(control, ancestorType);
var subscription = finder.Observable.Subscribe(observer);
finder.Init();
return Disposable.Create(() =>
{
subscription.Dispose();
finder.Dispose();
});
}));
}
public static IObservable<IControl> Create(IControl control, Type ancestorType)
{
return new AnonymousObservable<IControl>(observer =>
{
var finder = new FinderNode(control, ancestorType.GetTypeInfo());
var subscription = finder.Observable.Subscribe(observer);
finder.Init();
return Disposable.Create(() =>
{
subscription.Dispose();
finder.Dispose();
});
});
}