mirror of
https://github.com/biobulkbende/biobulkbende.org.git
synced 2024-12-27 05:15:25 +00:00
65 lines
2.2 KiB
JavaScript
65 lines
2.2 KiB
JavaScript
import { OuterSubscriber } from '../OuterSubscriber';
|
|
import { subscribeToResult } from '../util/subscribeToResult';
|
|
/**
|
|
* Emits the values emitted by the source Observable until a `notifier`
|
|
* Observable emits a value.
|
|
*
|
|
* <span class="informal">Lets values pass until a second Observable,
|
|
* `notifier`, emits something. Then, it completes.</span>
|
|
*
|
|
* <img src="./img/takeUntil.png" width="100%">
|
|
*
|
|
* `takeUntil` subscribes and begins mirroring the source Observable. It also
|
|
* monitors a second Observable, `notifier` that you provide. If the `notifier`
|
|
* emits a value or a complete notification, the output Observable stops
|
|
* mirroring the source Observable and completes.
|
|
*
|
|
* @example <caption>Tick every second until the first click happens</caption>
|
|
* var interval = Rx.Observable.interval(1000);
|
|
* var clicks = Rx.Observable.fromEvent(document, 'click');
|
|
* var result = interval.takeUntil(clicks);
|
|
* result.subscribe(x => console.log(x));
|
|
*
|
|
* @see {@link take}
|
|
* @see {@link takeLast}
|
|
* @see {@link takeWhile}
|
|
* @see {@link skip}
|
|
*
|
|
* @param {Observable} notifier The Observable whose first emitted value will
|
|
* cause the output Observable of `takeUntil` to stop emitting values from the
|
|
* source Observable.
|
|
* @return {Observable<T>} An Observable that emits the values from the source
|
|
* Observable until such time as `notifier` emits its first value.
|
|
* @method takeUntil
|
|
* @owner Observable
|
|
*/
|
|
export function takeUntil(notifier) {
|
|
return (source) => source.lift(new TakeUntilOperator(notifier));
|
|
}
|
|
class TakeUntilOperator {
|
|
constructor(notifier) {
|
|
this.notifier = notifier;
|
|
}
|
|
call(subscriber, source) {
|
|
return source.subscribe(new TakeUntilSubscriber(subscriber, this.notifier));
|
|
}
|
|
}
|
|
/**
|
|
* We need this JSDoc comment for affecting ESDoc.
|
|
* @ignore
|
|
* @extends {Ignored}
|
|
*/
|
|
class TakeUntilSubscriber extends OuterSubscriber {
|
|
constructor(destination, notifier) {
|
|
super(destination);
|
|
this.notifier = notifier;
|
|
this.add(subscribeToResult(this, notifier));
|
|
}
|
|
notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
this.complete();
|
|
}
|
|
notifyComplete() {
|
|
// noop
|
|
}
|
|
}
|
|
//# sourceMappingURL=takeUntil.js.map
|