es6/observable/ScalarObservable.js

import { Observable } from '../Observable';
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @extends {Ignored}
 * @hide true
 */
export var ScalarObservable = (function (_super) {
    __extends(ScalarObservable, _super);
    function ScalarObservable(value, scheduler) {
        _super.call(this);
        this.value = value;
        this.scheduler = scheduler;
        this._isScalar = true;
        if (scheduler) {
            this._isScalar = false;
        }
    }
    ScalarObservable.create = function (value, scheduler) {
        return new ScalarObservable(value, scheduler);
    };
    ScalarObservable.dispatch = function (state) {
        var done = state.done, value = state.value, subscriber = state.subscriber;
        if (done) {
            subscriber.complete();
            return;
        }
        subscriber.next(value);
        if (subscriber.closed) {
            return;
        }
        state.done = true;
        this.schedule(state);
    };
    ScalarObservable.prototype._subscribe = function (subscriber) {
        var value = this.value;
        var scheduler = this.scheduler;
        if (scheduler) {
            return scheduler.schedule(ScalarObservable.dispatch, 0, {
                done: false, value: value, subscriber: subscriber
            });
        }
        else {
            subscriber.next(value);
            if (!subscriber.closed) {
                subscriber.complete();
            }
        }
    };
    return ScalarObservable;
}(Observable));
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