es6/observable/SubscribeOnObservable.js

import { Observable } from '../Observable';
import { asap } from '../scheduler/asap';
import { isNumeric } from '../util/isNumeric';
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @extends {Ignored}
 * @hide true
 */
export var SubscribeOnObservable = (function (_super) {
    __extends(SubscribeOnObservable, _super);
    function SubscribeOnObservable(source, delayTime, scheduler) {
        if (delayTime === void 0) { delayTime = 0; }
        if (scheduler === void 0) { scheduler = asap; }
        _super.call(this);
        this.source = source;
        this.delayTime = delayTime;
        this.scheduler = scheduler;
        if (!isNumeric(delayTime) || delayTime < 0) {
            this.delayTime = 0;
        }
        if (!scheduler || typeof scheduler.schedule !== 'function') {
            this.scheduler = asap;
        }
    }
    SubscribeOnObservable.create = function (source, delay, scheduler) {
        if (delay === void 0) { delay = 0; }
        if (scheduler === void 0) { scheduler = asap; }
        return new SubscribeOnObservable(source, delay, scheduler);
    };
    SubscribeOnObservable.dispatch = function (arg) {
        var source = arg.source, subscriber = arg.subscriber;
        return source.subscribe(subscriber);
    };
    SubscribeOnObservable.prototype._subscribe = function (subscriber) {
        var delay = this.delayTime;
        var source = this.source;
        var scheduler = this.scheduler;
        return scheduler.schedule(SubscribeOnObservable.dispatch, delay, {
            source: source, subscriber: subscriber
        });
    };
    return SubscribeOnObservable;
}(Observable));
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