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PATH: usr / local / lib / node_modules / ghost-cli / node_modules / rxjs / src / internal / operators

import { Operator } from '../Operator';
import { Subscriber } from '../Subscriber';
import { Observable } from '../Observable';
import { OuterSubscriber } from '../OuterSubscriber';
import { InnerSubscriber } from '../InnerSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
import { MonoTypeOperatorFunction, TeardownLogic, ObservableInput } from '../types';
import { Subscription } from '../Subscription';

/**
 * Returns an Observable that skips items emitted by the source Observable until a second Observable emits an item.
 *
 * The `skipUntil` operator causes the observable stream to skip the emission of values until the passed in observable emits the first value.
 * This can be particularly useful in combination with user interactions, responses of http requests or waiting for specific times to pass by.
 *
 * ![](skipUntil.png)
 *
 * Internally the `skipUntil` operator subscribes to the passed in observable (in the following called *notifier*) in order to recognize the emission
 * of its first value. When this happens, the operator unsubscribes from the *notifier* and starts emitting the values of the *source*
 * observable. It will never let the *source* observable emit any values if the *notifier* completes or throws an error without emitting
 * a value before.
 *
 * ## Example
 *
 * In the following example, all emitted values of the interval observable are skipped until the user clicks anywhere within the page.
 *
 * ```ts
 * import { interval, fromEvent } from 'rxjs';
 * import { skipUntil } from 'rxjs/operators';
 *
 * const intervalObservable = interval(1000);
 * const click = fromEvent(document, 'click');
 *
 * const emitAfterClick = intervalObservable.pipe(
 *   skipUntil(click)
 * );
 * // clicked at 4.6s. output: 5...6...7...8........ or
 * // clicked at 7.3s. output: 8...9...10..11.......
 * const subscribe = emitAfterClick.subscribe(value => console.log(value));
 * ```
 *
 * @param {Observable} notifier - The second Observable that has to emit an item before the source Observable's elements begin to
 * be mirrored by the resulting Observable.
 * @return {Observable<T>} An Observable that skips items from the source Observable until the second Observable emits
 * an item, then emits the remaining items.
 * @method skipUntil
 * @owner Observable
 */
export function skipUntil<T>(notifier: Observable<any>): MonoTypeOperatorFunction<T> {
  return (source: Observable<T>) => source.lift(new SkipUntilOperator(notifier));
}

class SkipUntilOperator<T> implements Operator<T, T> {
  constructor(private notifier: Observable<any>) {
  }

call(destination: Subscriber<T>, source: any): TeardownLogic {
    return source.subscribe(new SkipUntilSubscriber(destination, this.notifier));
  }
}

/**
 * We need this JSDoc comment for affecting ESDoc.
 * @ignore
 * @extends {Ignored}
 */
class SkipUntilSubscriber<T, R> extends OuterSubscriber<T, R> {

private hasValue: boolean = false;
  private innerSubscription: Subscription;

constructor(destination: Subscriber<R>, notifier: ObservableInput<any>) {
    super(destination);
    const innerSubscriber = new InnerSubscriber(this, undefined, undefined);
    this.add(innerSubscriber);
    this.innerSubscription = innerSubscriber;
    subscribeToResult(this, notifier, undefined, undefined, innerSubscriber);
  }

protected _next(value: T) {
    if (this.hasValue) {
      super._next(value);
    }
  }

notifyNext(outerValue: T, innerValue: R,
             outerIndex: number, innerIndex: number,
             innerSub: InnerSubscriber<T, R>): void {
    this.hasValue = true;
    if (this.innerSubscription) {
      this.innerSubscription.unsubscribe();
    }
  }

notifyComplete() {
    /* do nothing */
  }
}

[-] toArray.ts [edit]
[-] window.ts [edit]
[-] retry.ts [edit]
[-] mergeAll.ts [edit]
[-] windowWhen.ts [edit]
[-] every.ts [edit]
[-] timeout.ts [edit]
[-] debounceTime.ts [edit]
[-] index.ts [edit]
[-] takeWhile.ts [edit]
[-] audit.ts [edit]
[-] reduce.ts [edit]
[-] mapTo.ts [edit]
[-] count.ts [edit]
[-] debounce.ts [edit]
[-] throwIfEmpty.ts [edit]
[-] auditTime.ts [edit]
[-] scan.ts [edit]
[-] switchAll.ts [edit]
[-] map.ts [edit]
[-] bufferCount.ts [edit]
[-] mergeScan.ts [edit]
[-] publish.ts [edit]
[-] min.ts [edit]
[+] ..
[-] publishReplay.ts [edit]
[-] bufferTime.ts [edit]
[-] share.ts [edit]
[-] repeat.ts [edit]
[-] distinct.ts [edit]
[-] concatMapTo.ts [edit]
[-] buffer.ts [edit]
[-] concatMap.ts [edit]
[-] max.ts [edit]
[-] partition.ts [edit]
[-] observeOn.ts [edit]
[-] bufferWhen.ts [edit]
[-] dematerialize.ts [edit]
[-] throttle.ts [edit]
[-] groupBy.ts [edit]
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[-] exhaust.ts [edit]
[-] exhaustMap.ts [edit]
[-] retryWhen.ts [edit]
[-] zipAll.ts [edit]
[-] find.ts [edit]
[-] mergeMap.ts [edit]
[-] single.ts [edit]
[-] last.ts [edit]
[-] combineLatest.ts [edit]
[-] publishLast.ts [edit]
[-] pluck.ts [edit]
[-] pairwise.ts [edit]
[-] distinctUntilChanged.ts [edit]
[-] timeInterval.ts [edit]
[-] shareReplay.ts [edit]
[-] skipUntil.ts [edit]
[-] findIndex.ts [edit]
[-] windowToggle.ts [edit]
[-] startWith.ts [edit]
[-] timeoutWith.ts [edit]
[-] concat.ts [edit]
[-] materialize.ts [edit]
[-] timestamp.ts [edit]
[-] onErrorResumeNext.ts [edit]
[-] subscribeOn.ts [edit]
[-] takeUntil.ts [edit]
[-] skipLast.ts [edit]
[-] throttleTime.ts [edit]
[-] mergeMapTo.ts [edit]
[-] multicast.ts [edit]
[-] merge.ts [edit]
[-] takeLast.ts [edit]
[-] delayWhen.ts [edit]
[-] sampleTime.ts [edit]
[-] tap.ts [edit]
[-] take.ts [edit]
[-] sample.ts [edit]
[-] filter.ts [edit]
[-] skip.ts [edit]
[-] expand.ts [edit]
[-] publishBehavior.ts [edit]
[-] sequenceEqual.ts [edit]
[-] ignoreElements.ts [edit]
[-] catchError.ts [edit]
[-] endWith.ts [edit]
[-] refCount.ts [edit]
[-] windowCount.ts [edit]
[-] defaultIfEmpty.ts [edit]
[-] windowTime.ts [edit]
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[-] delay.ts [edit]
[-] bufferToggle.ts [edit]
[-] repeatWhen.ts [edit]
[-] concatAll.ts [edit]
[-] first.ts [edit]
[-] zip.ts [edit]
[-] elementAt.ts [edit]
[-] skipWhile.ts [edit]
[-] race.ts [edit]
[-] finalize.ts [edit]
[-] combineAll.ts [edit]
[-] distinctUntilKeyChanged.ts [edit]
[-] isEmpty.ts [edit]