takeUntil.js 2.07 KB
"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    }
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var innerSubscribe_1 = require("../innerSubscribe");
function takeUntil(notifier) {
    return function (source) { return source.lift(new TakeUntilOperator(notifier)); };
}
exports.takeUntil = takeUntil;
var TakeUntilOperator = (function () {
    function TakeUntilOperator(notifier) {
        this.notifier = notifier;
    }
    TakeUntilOperator.prototype.call = function (subscriber, source) {
        var takeUntilSubscriber = new TakeUntilSubscriber(subscriber);
        var notifierSubscription = innerSubscribe_1.innerSubscribe(this.notifier, new innerSubscribe_1.SimpleInnerSubscriber(takeUntilSubscriber));
        if (notifierSubscription && !takeUntilSubscriber.seenValue) {
            takeUntilSubscriber.add(notifierSubscription);
            return source.subscribe(takeUntilSubscriber);
        }
        return takeUntilSubscriber;
    };
    return TakeUntilOperator;
}());
var TakeUntilSubscriber = (function (_super) {
    __extends(TakeUntilSubscriber, _super);
    function TakeUntilSubscriber(destination) {
        var _this = _super.call(this, destination) || this;
        _this.seenValue = false;
        return _this;
    }
    TakeUntilSubscriber.prototype.notifyNext = function () {
        this.seenValue = true;
        this.complete();
    };
    TakeUntilSubscriber.prototype.notifyComplete = function () {
    };
    return TakeUntilSubscriber;
}(innerSubscribe_1.SimpleOuterSubscriber));
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