angular2/src/facade/async.js

Angular 2 - a web framework for modern web apps

'use strict';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 __());
};
var lang_1 = require('angular2/src/facade/lang');
var promise_1 = require('angular2/src/facade/promise');
exports.PromiseWrapper = promise_1.PromiseWrapper;
exports.Promise = promise_1.Promise;
var Rx_1 = require('@reactivex/rxjs/dist/cjs/Rx');
var Rx_2 = require('@reactivex/rxjs/dist/cjs/Rx');
exports.Subject = Rx_2.Subject;
var TimerWrapper = (function () {
    function TimerWrapper() {
    }
    TimerWrapper.setTimeout = function (fn, millis) {
        return lang_1.global.setTimeout(fn, millis);
    };
    TimerWrapper.clearTimeout = function (id) { lang_1.global.clearTimeout(id); };
    TimerWrapper.setInterval = function (fn, millis) {
        return lang_1.global.setInterval(fn, millis);
    };
    TimerWrapper.clearInterval = function (id) { lang_1.global.clearInterval(id); };
    return TimerWrapper;
})();
exports.TimerWrapper = TimerWrapper;
var ObservableWrapper = (function () {
    function ObservableWrapper() {
    }
    // TODO(vsavkin): when we use rxnext, try inferring the generic type from the first arg
    ObservableWrapper.subscribe = function (emitter, onNext, onError, onComplete) {
        if (onComplete === void 0) { onComplete = function () { }; }
        return emitter.subscribe({ next: onNext, error: onError, complete: onComplete });
    };
    ObservableWrapper.isObservable = function (obs) { return obs instanceof Rx_1.Observable; };
    /**
     * Returns whether `obs` has any subscribers listening to events.
     */
    ObservableWrapper.hasSubscribers = function (obs) { return obs.observers.length > 0; };
    ObservableWrapper.dispose = function (subscription) { subscription.unsubscribe(); };
    ObservableWrapper.callNext = function (emitter, value) { emitter.next(value); };
    ObservableWrapper.callError = function (emitter, error) { emitter.error(error); };
    ObservableWrapper.callComplete = function (emitter) { emitter.complete(); };
    ObservableWrapper.fromPromise = function (promise) {
        return Rx_1.Observable.fromPromise(promise);
    };
    ObservableWrapper.toPromise = function (obj) { return obj.toPromise(); };
    return ObservableWrapper;
})();
exports.ObservableWrapper = ObservableWrapper;
/**
 * Use by directives and components to emit custom Events.
 *
 * ### Examples
 *
 * In the following example, `Zippy` alternatively emits `open` and `close` events when its
 * title gets clicked:
 *
 * ```
 * @Component({
 *   selector: 'zippy',
 *   template: `
 *   <div class="zippy">
 *     <div (click)="toggle()">Toggle</div>
 *     <div [hidden]="!visible">
 *       <ng-content></ng-content>
 *     </div>
 *  </div>`})
 * export class Zippy {
 *   visible: boolean = true;
 *   @Output() open: EventEmitter = new EventEmitter();
 *   @Output() close: EventEmitter = new EventEmitter();
 *
 *   toggle() {
 *     this.visible = !this.visible;
 *     if (this.visible) {
 *       this.open.next(null);
 *     } else {
 *       this.close.next(null);
 *     }
 *   }
 * }
 * ```
 *
 * Use Rx.Observable but provides an adapter to make it work as specified here:
 * https://github.com/jhusain/observable-spec
 *
 * Once a reference implementation of the spec is available, switch to it.
 */
var EventEmitter = (function (_super) {
    __extends(EventEmitter, _super);
    /**
     * Creates an instance of [EventEmitter], which depending on [isAsync],
     * delivers events synchronously or asynchronously.
     */
    function EventEmitter(isAsync) {
        if (isAsync === void 0) { isAsync = true; }
        _super.call(this);
        this._isAsync = isAsync;
    }
    EventEmitter.prototype.subscribe = function (generatorOrNext, error, complete) {
        if (generatorOrNext && typeof generatorOrNext === 'object') {
            var schedulerFn = this._isAsync ?
                function (value) { setTimeout(function () { return generatorOrNext.next(value); }); } :
                function (value) { generatorOrNext.next(value); };
            return _super.prototype.subscribe.call(this, schedulerFn, function (err) { return generatorOrNext.error ? generatorOrNext.error(err) : null; }, function () { return generatorOrNext.complete ? generatorOrNext.complete() : null; });
        }
        else {
            var schedulerFn = this._isAsync ? function (value) { setTimeout(function () { return generatorOrNext(value); }); } :
                function (value) { generatorOrNext(value); };
            return _super.prototype.subscribe.call(this, schedulerFn, function (err) { return error ? error(err) : null; }, function () { return complete ? complete() : null; });
        }
    };
    return EventEmitter;
})(Rx_1.Subject);
exports.EventEmitter = EventEmitter;
// todo(robwormald): ts2dart should handle this properly
var Observable = (function (_super) {
    __extends(Observable, _super);
    function Observable() {
        _super.apply(this, arguments);
    }
    Observable.prototype.lift = function (operator) {
        var observable = new Observable();
        observable.source = this;
        observable.operator = operator;
        return observable;
    };
    return Observable;
})(Rx_1.Observable);
exports.Observable = Observable;
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