public static UniRx.Tuple <IObservableCollection <T>, IDisposable> Filter <T>(this IObservableCollection <T> collection, Func <T, ICell <bool> > predicate)
{
var inorganicCollection = new InorganicCollection <T>();
var disposables = new Dictionary <T, IDisposable>();
var foreachDisp = collection.ProcessEach(objAdd =>
{
var value = objAdd;
var disp = predicate(value).Bind(b =>
{
if (b)
{
if (inorganicCollection.Contains(value))
{
return;
}
inorganicCollection.Add(value);
}
else
{
inorganicCollection.Remove(value);
}
});
disposables[value] = disp;
}, objRemove =>
{
inorganicCollection.Remove(objRemove);
if (disposables.ContainsKey(objRemove))
{
var disposable = disposables[objRemove];
disposables.Remove(objRemove);
disposable.Dispose();
}
else
{
Debug.Log("disposable is not exist");
}
});
return(new UniRx.Tuple <IObservableCollection <T>, IDisposable>(inorganicCollection, foreachDisp));
}