node_modules/rxjs/_esm5/operators/takeUntil.js

/** PURE_IMPORTS_START .._OuterSubscriber,.._util_subscribeToResult PURE_IMPORTS_END */
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b)
        if (b.hasOwnProperty(p))
            d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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 function (source) { return source.lift(new TakeUntilOperator(notifier)); };
}
var TakeUntilOperator = /*@__PURE__*/ (/*@__PURE__*/ function () {
    function TakeUntilOperator(notifier) {
        this.notifier = notifier;
    }
    TakeUntilOperator.prototype.call = function (subscriber, source) {
        return source.subscribe(new TakeUntilSubscriber(subscriber, this.notifier));
    };
    return TakeUntilOperator;
}());
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @ignore
 * @extends {Ignored}
 */
var TakeUntilSubscriber = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
    __extends(TakeUntilSubscriber, _super);
    function TakeUntilSubscriber(destination, notifier) {
        _super.call(this, destination);
        this.notifier = notifier;
        this.add(subscribeToResult(this, notifier));
    }
    TakeUntilSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
        this.complete();
    };
    TakeUntilSubscriber.prototype.notifyComplete = function () {
        // noop
    };
    return TakeUntilSubscriber;
}(OuterSubscriber));
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