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75 lines
2.9 KiB
75 lines
2.9 KiB
"use strict"; |
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var __extends = (this && this.__extends) || function (d, b) { |
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; |
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function __() { this.constructor = d; } |
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); |
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}; |
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var OuterSubscriber_1 = require('../OuterSubscriber'); |
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var subscribeToResult_1 = require('../util/subscribeToResult'); |
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/** |
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* Emits the values emitted by the source Observable until a `notifier` |
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* Observable emits a value. |
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* |
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* <span class="informal">Lets values pass until a second Observable, |
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* `notifier`, emits something. Then, it completes.</span> |
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* |
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* <img src="./img/takeUntil.png" width="100%"> |
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* |
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* `takeUntil` subscribes and begins mirroring the source Observable. It also |
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* monitors a second Observable, `notifier` that you provide. If the `notifier` |
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* emits a value or a complete notification, the output Observable stops |
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* mirroring the source Observable and completes. |
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* |
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* @example <caption>Tick every second until the first click happens</caption> |
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* var interval = Rx.Observable.interval(1000); |
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* var clicks = Rx.Observable.fromEvent(document, 'click'); |
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* var result = interval.takeUntil(clicks); |
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* result.subscribe(x => console.log(x)); |
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* |
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* @see {@link take} |
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* @see {@link takeLast} |
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* @see {@link takeWhile} |
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* @see {@link skip} |
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* |
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* @param {Observable} notifier The Observable whose first emitted value will |
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* cause the output Observable of `takeUntil` to stop emitting values from the |
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* source Observable. |
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* @return {Observable<T>} An Observable that emits the values from the source |
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* Observable until such time as `notifier` emits its first value. |
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* @method takeUntil |
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* @owner Observable |
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*/ |
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function takeUntil(notifier) { |
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return function (source) { return source.lift(new TakeUntilOperator(notifier)); }; |
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} |
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exports.takeUntil = takeUntil; |
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var TakeUntilOperator = (function () { |
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function TakeUntilOperator(notifier) { |
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this.notifier = notifier; |
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} |
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TakeUntilOperator.prototype.call = function (subscriber, source) { |
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return source.subscribe(new TakeUntilSubscriber(subscriber, this.notifier)); |
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}; |
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return TakeUntilOperator; |
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}()); |
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/** |
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* We need this JSDoc comment for affecting ESDoc. |
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* @ignore |
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* @extends {Ignored} |
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*/ |
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var TakeUntilSubscriber = (function (_super) { |
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__extends(TakeUntilSubscriber, _super); |
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function TakeUntilSubscriber(destination, notifier) { |
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_super.call(this, destination); |
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this.notifier = notifier; |
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this.add(subscribeToResult_1.subscribeToResult(this, notifier)); |
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} |
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TakeUntilSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) { |
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this.complete(); |
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}; |
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TakeUntilSubscriber.prototype.notifyComplete = function () { |
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// noop |
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}; |
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return TakeUntilSubscriber; |
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}(OuterSubscriber_1.OuterSubscriber)); |
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//# sourceMappingURL=takeUntil.js.map
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