public WhereManyReactiveCollection(IReadOnlyReactiveCollection <T> source, Func <T, bool> filter, Func <T, IObservable <Unit> > filterChanged, IObservable <Unit> generalFilterChanged = null)
{
this.filter = filter;
this.filterChanged = filterChanged;
onAdd = source.ObserveAdd().Subscribe(@event =>
{
OnAdd(@event.Value);
});
onRemove = source.ObserveRemove().Subscribe(@event => { OnRemove(@event.Value); });
onReset = source.ObserveReset().Subscribe(_ => ClearItems());
onReset = source.ObserveReplace().Subscribe(@event =>
{
OnRemove(@event.OldValue);
OnAdd(@event.NewValue);
});
if (generalFilterChanged != null)
{
generalFilterChangedBinding = generalFilterChanged.Subscribe(_ =>
{
foreach (var element in source)
{
UpdateElement(element);
}
});
}
foreach (var el in source)
{
OnAdd(el);
}
}
public static IObservable <Unit> AnyCollectionChangeAsObservable <T>(this IReadOnlyReactiveCollection <T> reactiveCollection)
{
return(Observable.Merge(
reactiveCollection.ObserveReset().AsUnitObservable(),
reactiveCollection.ObserveAdd().AsUnitObservable(),
reactiveCollection.ObserveMove().AsUnitObservable(),
reactiveCollection.ObserveRemove().AsUnitObservable(),
reactiveCollection.ObserveReplace().AsUnitObservable()));
}
public CollectionBinder(IReadOnlyReactiveCollection <T> source, BaseListItem <T> prefab, Transform parent)
{
this.source = source;
this.prefab = prefab;
this.parent = parent;
prefab.gameObject.SetActive(false);
onAdd = source.ObserveAdd().Subscribe(@event => UpdateCollection());
onMove = source.ObserveMove().Subscribe(@event => UpdateCollection());
onReset = source.ObserveReset().Subscribe(@event => UpdateCollection());
onRemove = source.ObserveRemove().Subscribe(@event => UpdateCollection());
onReplace = source.ObserveReplace().Subscribe(@event => UpdateCollection());
UpdateCollection();
}
public WhereReactiveCollection(IReadOnlyReactiveCollection <T> source, Func <T, bool> filter, IObservable <Unit> filterChanged)
{
this.filter = filter;
onAdd = source.ObserveAdd().Subscribe(@event =>
{
if (filter(@event.Value))
{
Add(@event.Value);
}
});
onRemove = source.ObserveRemove().Subscribe(@event =>
{
Remove(@event.Value);
});
onReset = source.ObserveReset().Subscribe(_ => ClearItems());
onReset = source.ObserveReplace().Subscribe(@event =>
{
Remove(@event.OldValue);
if (filter(@event.NewValue))
{
Add(@event.NewValue);
}
});
filterChanged.Subscribe(_ =>
{
foreach (var element in source)
{
if (filter(element))
{
if (!Contains(element))
{
Add(element);
}
}
else
{
Remove(element);
}
}
});
}
