108 lines
4.6 KiB
JavaScript
108 lines
4.6 KiB
JavaScript
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"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 Subject_1 = require('../Subject');
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var tryCatch_1 = require('../util/tryCatch');
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var errorObject_1 = require('../util/errorObject');
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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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* Returns an Observable that mirrors the source Observable with the exception of a `complete`. If the source
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* Observable calls `complete`, this method will emit to the Observable returned from `notifier`. If that Observable
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* calls `complete` or `error`, then this method will call `complete` or `error` on the child subscription. Otherwise
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* this method will resubscribe to the source Observable.
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*
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* <img src="./img/repeatWhen.png" width="100%">
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*
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* @param {function(notifications: Observable): Observable} notifier - Receives an Observable of notifications with
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* which a user can `complete` or `error`, aborting the repetition.
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* @return {Observable} The source Observable modified with repeat logic.
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* @method repeatWhen
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* @owner Observable
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*/
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function repeatWhen(notifier) {
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return function (source) { return source.lift(new RepeatWhenOperator(notifier)); };
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}
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exports.repeatWhen = repeatWhen;
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var RepeatWhenOperator = (function () {
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function RepeatWhenOperator(notifier) {
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this.notifier = notifier;
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}
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RepeatWhenOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new RepeatWhenSubscriber(subscriber, this.notifier, source));
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};
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return RepeatWhenOperator;
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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 RepeatWhenSubscriber = (function (_super) {
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__extends(RepeatWhenSubscriber, _super);
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function RepeatWhenSubscriber(destination, notifier, source) {
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_super.call(this, destination);
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this.notifier = notifier;
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this.source = source;
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this.sourceIsBeingSubscribedTo = true;
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}
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RepeatWhenSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
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this.sourceIsBeingSubscribedTo = true;
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this.source.subscribe(this);
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};
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RepeatWhenSubscriber.prototype.notifyComplete = function (innerSub) {
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if (this.sourceIsBeingSubscribedTo === false) {
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return _super.prototype.complete.call(this);
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}
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};
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RepeatWhenSubscriber.prototype.complete = function () {
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this.sourceIsBeingSubscribedTo = false;
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if (!this.isStopped) {
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if (!this.retries) {
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this.subscribeToRetries();
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}
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if (!this.retriesSubscription || this.retriesSubscription.closed) {
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return _super.prototype.complete.call(this);
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}
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this._unsubscribeAndRecycle();
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this.notifications.next();
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}
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};
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/** @deprecated internal use only */ RepeatWhenSubscriber.prototype._unsubscribe = function () {
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var _a = this, notifications = _a.notifications, retriesSubscription = _a.retriesSubscription;
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if (notifications) {
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notifications.unsubscribe();
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this.notifications = null;
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}
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if (retriesSubscription) {
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retriesSubscription.unsubscribe();
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this.retriesSubscription = null;
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}
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this.retries = null;
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};
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/** @deprecated internal use only */ RepeatWhenSubscriber.prototype._unsubscribeAndRecycle = function () {
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var _a = this, notifications = _a.notifications, retries = _a.retries, retriesSubscription = _a.retriesSubscription;
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this.notifications = null;
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this.retries = null;
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this.retriesSubscription = null;
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_super.prototype._unsubscribeAndRecycle.call(this);
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this.notifications = notifications;
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this.retries = retries;
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this.retriesSubscription = retriesSubscription;
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return this;
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};
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RepeatWhenSubscriber.prototype.subscribeToRetries = function () {
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this.notifications = new Subject_1.Subject();
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var retries = tryCatch_1.tryCatch(this.notifier)(this.notifications);
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if (retries === errorObject_1.errorObject) {
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return _super.prototype.complete.call(this);
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}
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this.retries = retries;
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this.retriesSubscription = subscribeToResult_1.subscribeToResult(this, retries);
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};
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return RepeatWhenSubscriber;
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}(OuterSubscriber_1.OuterSubscriber));
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//# sourceMappingURL=repeatWhen.js.map
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