82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
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import {DOM} from 'angular2/src/dom/dom_adapter';
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import {Map, MapWrapper, List, ListWrapper} from 'angular2/src/facade/collection';
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import {StringWrapper, isBlank, BaseException} from 'angular2/src/facade/lang';
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import * as getTestabilityModule from 'angular2/src/core/testability/get_testability';
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/**
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* The Testability service provides testing hooks that can be accessed from
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* the browser and by services such as Protractor. Each bootstrapped Angular
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* application on the page will have an instance of Testability.
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*/
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export class Testability {
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_pendingCount: number;
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_callbacks: List;
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constructor() {
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this._pendingCount = 0;
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this._callbacks = ListWrapper.create();
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}
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increaseCount(delta: number = 1) {
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this._pendingCount += delta;
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if (this._pendingCount < 0) {
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throw new BaseException('pending async requests below zero');
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} else if (this._pendingCount == 0) {
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this._runCallbacks();
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}
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return this._pendingCount;
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}
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_runCallbacks() {
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while (this._callbacks.length !== 0) {
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ListWrapper.removeLast(this._callbacks)();
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}
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}
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whenStable(callback: Function) {
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ListWrapper.push(this._callbacks, callback);
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if (this._pendingCount === 0) {
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this._runCallbacks();
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}
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// TODO(juliemr) - hook into the zone api.
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}
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getPendingCount(): number {
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return this._pendingCount;
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}
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findBindings(using, binding: string, exactMatch: boolean): List {
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// TODO(juliemr): implement.
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return [];
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}
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}
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export class TestabilityRegistry {
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_applications: Map;
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constructor() {
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this._applications = MapWrapper.create();
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getTestabilityModule.GetTestability.addToWindow(this);
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}
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registerApplication(token, testability: Testability) {
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MapWrapper.set(this._applications, token, testability);
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}
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findTestabilityInTree(elem) : Testability {
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if (elem == null) {
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return null;
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}
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if (MapWrapper.contains(this._applications, elem)) {
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return MapWrapper.get(this._applications, elem);
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}
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if (DOM.isShadowRoot(elem)) {
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return this.findTestabilityInTree(DOM.getHost(elem));
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}
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return this.findTestabilityInTree(DOM.parentElement(elem));
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}
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}
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