42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Injectable} from '@angular/core';
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import {EventManagerPlugin} from './event_manager';
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@Injectable()
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export class DomEventsPlugin extends EventManagerPlugin {
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// This plugin should come last in the list of plugins, because it accepts all
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// events.
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supports(eventName: string): boolean { return true; }
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addEventListener(element: HTMLElement, eventName: string, handler: Function): Function {
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element.addEventListener(eventName, handler as any, false);
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return () => element.removeEventListener(eventName, handler as any, false);
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}
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addGlobalEventListener(target: string, eventName: string, handler: Function): Function {
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let element: any;
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switch (target) {
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case 'window':
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element = window;
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break;
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case 'document':
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element = document;
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break;
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case 'body':
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element = document.body;
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break;
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default:
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throw new Error(`Unsupported event target ${target} for event ${eventName}`);
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}
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return this.addEventListener(element, eventName, handler);
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}
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}
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