public override void DeactivateItem(IStepsScreen item, bool close)
{
base.DeactivateItem(item, close);
PreviousItems.Push(item);
InvalidateProperties();
}
public void Previous()
{
var previous = PreviousItems.Pop();
if (previous != null)
{
_suppressPreviousPush = true;
ActivateItem(previous);
_suppressPreviousPush = false;
}
InvalidateProperties();
}
public override void ActivateItem(IStepsScreen item)
{
_activeItemObservable?.Dispose();
if (!_suppressPreviousPush)
{
PreviousItems.Push(ActiveItem);
}
base.ActivateItem(item);
_activeItemObservable = item
.ObservableForProperty(screen => screen.HasNext)
.Subscribe(args => NotifyOfPropertyChange(nameof(CanNext)));
InvalidateProperties();
}
private Func <IReference, Task> HandleExited(ITransitionItem item)
{
return(async(IReference _ref) =>
{
if (Children.Any(child => child.Name == item.Name))
{
return;
}
if (item.OnExited != null)
{
await item.OnExited.Invoke(_ref);
}
if (Mounted)
{
Items = Items.Where(it => it.Item1.Name != item.Name).ToList();
PreviousItems = PreviousItems.Where(it => it.Item1.Name != item.Name).ToList();
await InvokeAsync(StateHasChanged);
}
});
}
