c7e48350d3
These wrappers are not natively understood by ts2dart. Removing them will improve Dart2JS compilation due to fewer megamorphic calls to List functions. It also makes Angular code more succinct and improves type safety in Angular due to better type inference of the Array component type. This change exposed several bugs in Angular.
83 lines
2.2 KiB
TypeScript
83 lines
2.2 KiB
TypeScript
import {Injectable} from 'angular2/di';
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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 './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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@Injectable()
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export class Testability {
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_pendingCount: number;
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_callbacks: List<Function>;
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constructor() {
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this._pendingCount = 0;
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this._callbacks = [];
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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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this._callbacks.push(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 { return this._pendingCount; }
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findBindings(using, binding: string, exactMatch: boolean): List<any> {
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// TODO(juliemr): implement.
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return [];
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}
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}
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@Injectable()
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export class TestabilityRegistry {
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_applications: Map<any, Testability>;
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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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