// You should not write to Val when using RxRef
public static RxRef <A> toRxRef <A>(this PrefVal <A> val)
{
var rx = new RxRef <A>(val.value);
rx.subscribe(v => val.value = v);
return(rx);
}
public static IRxVal <Option <A> > toRxVal <A>(this Future <A> future)
{
var rx = RxRef.a(F.none <A>());
future.onComplete(a => rx.value = F.some(a));
return(rx);
}
// You should not write to Val when using RxRef
public RxRef <A> toRxRef()
{
var rx = new RxRef <A>(read);
rx.subscribe(v => write(v));
return(rx);
}
public static IRxVal <B> toRxVal <A, B>(this Future <A> future, B whileNotCompleted, Fn <A, B> onCompletion)
{
var rx = RxRef.a(whileNotCompleted);
future.onComplete(a => rx.value = onCompletion(a));
return(rx);
}
public static IRxVal <A> toRxVal <A>(this Future <A> future, A whileNotCompleted)
{
var rx = RxRef.a(whileNotCompleted);
future.onComplete(a => rx.value = a);
return(rx);
}
/**
* Takes a function that transforms an element into a future and
* applies it to all elements in given sequence.
*
* However instead of applying all elements concurrently it waits
* for the future from previous element to complete before applying
* the next element.
*
* Returns reactive value that can be used to observe current stage
* of the application.
**/
public static IRxVal <Option <B> > inAsyncSeq <A, B>(
this IEnumerable <A> enumerable, Fn <A, Future <B> > asyncAction
)
{
var rxRef = RxRef.a(F.none <B>());
inAsyncSeq(enumerable.GetEnumerator(), rxRef, asyncAction);
return(rxRef);
}
public static IRxVal <A> toRxVal <A>(
this Future <IRxVal <A> > future, A whileNotCompleted
)
{
var rx = RxRef.a(whileNotCompleted);
future.onComplete(rx2 => rx2.subscribe(v => rx.value = v));
return(rx);
}
public void WithRxValInside()
{
Promise <IRxVal <int> > p;
var f = Future <IRxVal <int> > .async(out p);
var rx = f.toRxVal(0);
rx.value.shouldEqual(0);
var rx2 = RxRef.a(100);
p.complete(rx2);
rx.value.shouldEqual(100);
rx2.value = 200;
rx.value.shouldEqual(200);
}
/*********** Two-way binds ***********/
public static ISubscription bind <T>(
this IRxRef <T> subject, IEnumerable <dfCheckbox> checkboxes,
Fn <T, string> mapper, Fn <string, T> comapper
)
{
var optSubject = RxRef.a(F.some(subject.value));
var optSubjectSourceSubscription = subject.subscribe(v =>
optSubject.value = F.some(v)
);
var optSubjectTargetSubscription = optSubject.subscribe(opt =>
opt.each(v => subject.value = v)
);
var bindSubscription = optSubject.bind(checkboxes, mapper, comapper);
return(new Subscription(() => {
optSubjectSourceSubscription.unsubscribe();
optSubjectTargetSubscription.unsubscribe();
bindSubscription.unsubscribe();
}));
}
/// <summary>
/// This class calculates realtimeSinceStartup,
/// but excludes time intervals when an ad is showing or application is paused
///
/// on android - interstitials usually run on a separate activity (application gets paused/resumed automatically)
/// on IOS and some android ad networks - application does not get paused, so we need to call `setPaused` ourselves
/// </summary>
RealTimeButPauseWhenAdIsShowing()
{
var pauseStarted = Time.realtimeSinceStartup;
externalPause = RxRef.a(false);
ASync.onAppPause.toRxVal(false).zip(externalPause, F.or2).subscribeWithoutEmit(
NeverDisposeDisposableTracker.instance,
paused => {
isPaused = paused;
if (paused)
{
pauseStarted = Time.realtimeSinceStartup;
}
else
{
var secondsPaused = Time.realtimeSinceStartup - pauseStarted;
totalSecondsPaused += secondsPaused;
}
}
);
}
