84 lines
2.8 KiB
TypeScript
84 lines
2.8 KiB
TypeScript
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/// <reference path="../../typings/es6-promise/es6-promise.d.ts" />
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/// <reference path="../../typings/rx/rx.all.d.ts" />
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// HACK: workaround for Traceur behavior.
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// It expects all transpiled modules to contain this marker.
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// TODO: remove this when we no longer use traceur
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export var __esModule = true;
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import {int, global, isPresent} from 'angular2/src/facade/lang';
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import {List} from 'angular2/src/facade/collection';
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import * as Rx from 'rx';
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export class PromiseWrapper {
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static resolve(obj): Promise<any> { return Promise.resolve(obj); }
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static reject(obj): Promise<any> { return Promise.reject(obj); }
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// Note: We can't rename this method into `catch`, as this is not a valid
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// method name in Dart.
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static catchError<T>(promise: Promise<T>, onError: (error: any) => T | Thenable<T>): Promise<T> {
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return promise.catch(onError);
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}
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static all(promises: List<Promise<any>>): Promise<any> {
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if (promises.length == 0) return Promise.resolve([]);
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return Promise.all(promises);
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}
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static then<T>(promise: Promise<T>, success: (value: any) => T | Thenable<T>,
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rejection: (error: any) => T | Thenable<T>): Promise<T> {
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return promise.then(success, rejection);
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}
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static completer() {
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var resolve;
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var reject;
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var p = new Promise(function(res, rej) {
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resolve = res;
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reject = rej;
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});
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return {promise: p, resolve: resolve, reject: reject};
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}
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static setTimeout(fn: Function, millis: int) { global.setTimeout(fn, millis); }
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static isPromise(maybePromise): boolean { return maybePromise instanceof Promise; }
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}
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/**
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* Use Rx.Observable but provides an adapter to make it work as specified here:
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* https://github.com/jhusain/observable-spec
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*
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* Once a reference implementation of the spec is available, switch to it.
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*/
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type Observable = Rx.Observable<any>;
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type ObservableController = Rx.Subject<any>;
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export class ObservableWrapper {
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static createController(): Rx.Subject<any> { return new Rx.Subject(); }
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static createObservable<T>(subject: Rx.Subject<T>): Rx.Observable<T> { return subject; }
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static subscribe(observable: Rx.Observable<any>, generatorOrOnNext, onThrow = null,
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onReturn = null) {
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if (isPresent(generatorOrOnNext.next)) {
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return observable.observeOn(Rx.Scheduler.timeout)
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.subscribe((value) => generatorOrOnNext.next(value),
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(error) => generatorOrOnNext.throw(error), () => generatorOrOnNext.return ());
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} else {
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return observable.observeOn(Rx.Scheduler.timeout)
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.subscribe(generatorOrOnNext, onThrow, onReturn);
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}
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}
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static callNext(subject: Rx.Subject<any>, value: any) { subject.onNext(value); }
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static callThrow(subject: Rx.Subject<any>, error: any) { subject.onError(error); }
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static callReturn(subject: Rx.Subject<any>) { subject.onCompleted(); }
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}
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