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.
39 lines
1.3 KiB
TypeScript
39 lines
1.3 KiB
TypeScript
import {List, ListWrapper} from 'angular2/src/facade/collection';
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import {isPresent, isFunction} from 'angular2/src/facade/lang';
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import {DomAdapter} from './dom_adapter';
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/**
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* Provides DOM operations in any browser environment.
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*/
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export class GenericBrowserDomAdapter extends DomAdapter {
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getDistributedNodes(el) { return el.getDistributedNodes(); }
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resolveAndSetHref(el, baseUrl: string, href: string) {
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el.href = href == null ? baseUrl : baseUrl + '/../' + href;
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}
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cssToRules(css: string): List<any> {
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var style = this.createStyleElement(css);
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this.appendChild(this.defaultDoc().head, style);
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var rules = [];
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if (isPresent(style.sheet)) {
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// TODO(sorvell): Firefox throws when accessing the rules of a stylesheet
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// with an @import
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// https://bugzilla.mozilla.org/show_bug.cgi?id=625013
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try {
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var rawRules = style.sheet.cssRules;
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rules = ListWrapper.createFixedSize(rawRules.length);
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for (var i = 0; i < rawRules.length; i++) {
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rules[i] = rawRules[i];
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}
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} catch (e) {
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//
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}
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} else {
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// console.warn('sheet not found', style);
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}
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this.remove(style);
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return rules;
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}
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supportsDOMEvents(): boolean { return true; }
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supportsNativeShadowDOM(): boolean { return isFunction(this.defaultDoc().body.createShadowRoot); }
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}
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