public function __invoke(ObservableInterface $observable, ObserverInterface $observer, SchedulerInterface $scheduler = null)
{
$singleDisposable = new SingleAssignmentDisposable();
$disposable = new CompositeDisposable();
$disposable->add($singleDisposable);
$callbackObserver = new CallbackObserver(function (Observable $x) use($disposable, $scheduler, $observer) {
if ($this->hasCurrent) {
return;
}
$this->hasCurrent = true;
$inner = new SingleAssignmentDisposable();
$disposable->add($inner);
$innerSub = $x->subscribe(new CallbackObserver([$observer, "onNext"], [$observer, "onError"], function () use($disposable, $inner, $observer) {
$disposable->remove($inner);
$this->hasCurrent = false;
if ($this->isStopped && $disposable->count() === 1) {
$observer->onCompleted();
}
}), $scheduler);
$inner->setDisposable($innerSub);
}, [$observer, 'onError'], function () use($disposable, $observer) {
$this->isStopped = true;
if (!$this->hasCurrent && $disposable->count() === 1) {
$observer->onCompleted();
}
});
$singleDisposable->setDisposable($observable->subscribe($callbackObserver, $scheduler));
return $disposable;
}
/**
* @param \Rx\ObservableInterface $observable
* @param \Rx\ObserverInterface $observer
* @param \Rx\SchedulerInterface $scheduler
* @return \Rx\DisposableInterface
*/
public function __invoke(ObservableInterface $observable, ObserverInterface $observer, SchedulerInterface $scheduler = null)
{
$group = new CompositeDisposable();
$isStopped = false;
$sourceSubscription = new SingleAssignmentDisposable();
$group->add($sourceSubscription);
$callbackObserver = new CallbackObserver(function (ObservableInterface $innerSource) use(&$group, &$isStopped, $observer, &$scheduler) {
$innerSubscription = new SingleAssignmentDisposable();
$group->add($innerSubscription);
$innerSubscription->setDisposable($innerSource->subscribe(new CallbackObserver(function ($nextValue) use($observer) {
$observer->onNext($nextValue);
}, function ($error) use($observer) {
$observer->onError($error);
}, function () use(&$group, &$innerSubscription, &$isStopped, $observer) {
$group->remove($innerSubscription);
if ($isStopped && $group->count() === 1) {
$observer->onCompleted();
}
}), $scheduler));
}, [$observer, 'onError'], function () use(&$group, &$isStopped, $observer) {
$isStopped = true;
if ($group->count() === 1) {
$observer->onCompleted();
}
});
$subscription = $this->sources->subscribe($callbackObserver, $scheduler);
$sourceSubscription->setDisposable($subscription);
return $group;
}
/**
* @test
*/
public function a_disposable_can_be_added_after_creation()
{
$d1 = new CallbackDisposable(function () {
});
$d2 = new CallbackDisposable(function () {
});
$disposable = new CompositeDisposable(array($d1));
$this->assertEquals(1, $disposable->count());
$this->assertFalse($disposable->contains($d2));
$disposable->add($d2);
$this->assertEquals(2, $disposable->count());
$this->assertTrue($disposable->contains($d2));
}
/**
* Merges an observable sequence of observables into an observable sequence.
*
* @param ObservableInterface $observables
*
* @return ObserverInterface
*/
public static function mergeAll(ObservableInterface $sources)
{
// todo: add scheduler
return new AnonymousObservable(function ($observer, $scheduler) use($sources) {
$group = new CompositeDisposable();
$isStopped = false;
$sourceSubscription = new SingleAssignmentDisposable();
$group->add($sourceSubscription);
$sourceSubscription->setDisposable($sources->subscribeCallback(function ($innerSource) use(&$group, &$isStopped, $observer, &$scheduler) {
$innerSubscription = new SingleAssignmentDisposable();
$group->add($innerSubscription);
$innerSubscription->setDisposable($innerSource->subscribeCallback(function ($nextValue) use($observer) {
$observer->onNext($nextValue);
}, function ($error) use($observer) {
$observer->onError($error);
}, function () use(&$group, &$innerSubscription, &$isStopped, $observer) {
$group->remove($innerSubscription);
if ($isStopped && $group->count() === 1) {
$observer->onCompleted();
}
}, $scheduler));
}, function ($error) use($observer) {
$observer->onError($error);
}, function () use(&$group, &$isStopped, $observer) {
$isStopped = true;
if ($group->count() === 1) {
$observer->onCompleted();
}
}, $scheduler));
return $group;
});
}