| import { OuterSubscriber } from '../OuterSubscriber'; |
| import { subscribeToResult } from '../util/subscribeToResult'; |
| /** |
| * Returns an Observable that skips items emitted by the source Observable until a second Observable emits an item. |
| * |
| * <img src="./img/skipUntil.png" width="100%"> |
| * |
| * @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(notifier) { |
| return (source) => source.lift(new SkipUntilOperator(notifier)); |
| } |
| class SkipUntilOperator { |
| constructor(notifier) { |
| this.notifier = notifier; |
| } |
| call(subscriber, source) { |
| return source.subscribe(new SkipUntilSubscriber(subscriber, this.notifier)); |
| } |
| } |
| /** |
| * We need this JSDoc comment for affecting ESDoc. |
| * @ignore |
| * @extends {Ignored} |
| */ |
| class SkipUntilSubscriber extends OuterSubscriber { |
| constructor(destination, notifier) { |
| super(destination); |
| this.hasValue = false; |
| this.isInnerStopped = false; |
| this.add(subscribeToResult(this, notifier)); |
| } |
| _next(value) { |
| if (this.hasValue) { |
| super._next(value); |
| } |
| } |
| _complete() { |
| if (this.isInnerStopped) { |
| super._complete(); |
| } |
| else { |
| this.unsubscribe(); |
| } |
| } |
| notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
| this.hasValue = true; |
| } |
| notifyComplete() { |
| this.isInnerStopped = true; |
| if (this.isStopped) { |
| super._complete(); |
| } |
| } |
| } |
| //# sourceMappingURL=skipUntil.js.map |