/// <summary>
/// Once
/// </summary>
/// <param name="activity"></param>
/// <returns></returns>
public static IObservable <ActivityState> OnDestroying(this ActivityBase activity)
{
return(activity
.Events
.Where(e => e.Key == nameof(ActivityBase.ActivityState))
.Select(x => (ActivityState)x.Value)
.Where(state => state == ActivityState.Destroying)
.Take(1));
}
/// <summary>
/// TODO: -> NotificationManager IsDisable(INotification)
/// </summary>
public static IDisposable SubscribeNotification(
this ActivityBase activity,
IObservable <IEvent> activityEvents,
INotification notification)
{
var waiting = false;
var enabled = true;
var source = new CancellationTokenSource();
return(activityEvents
.Select(x => new
{
waiting,
enabled,
// activity.ActivityState,
activity.IsDestroyed,
source.IsCancellationRequested
})
.Where(x => !x.waiting)
.Do(x =>
{
if (!x.IsCancellationRequested && x.IsDestroyed)
{
source.Cancel();
}
})
.TakeWhile(x =>
x.enabled && // it's Disabled ?
!x.IsDestroyed &&
!x.IsCancellationRequested)
.Subscribe(async x =>
{
var result = await notification.Notify(activity, source.Token);
enabled = !result.Ok;
waiting = false;
if (source.IsCancellationRequested)
{
return;
}
source.Cancel();
}));
}
public FragmentNavigator(ActivityBase activity, IFragmentFactory fragmentFactory)
{
_activity = activity;
_fragmentFactory = fragmentFactory;
}
public INavigator Create(ActivityBase activity)
{
return(new FragmentNavigator(activity, Container.Resolve <FragmentFactory>()));
}
public static IObservable <IEvent> WhenBackPressed(this ActivityBase activity)
{
return(activity.Events.Where(e => e.Key == nameof(activity.OnBackPressed)));
}