| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| 'use strict' |
| |
| // track varies kinds of events and listeners. |
| const handlerTraker = {} |
| |
| const globalEvent = { |
| |
| /** |
| * addEventListener |
| * @param {string} evt - the event name to add a listener on. |
| */ |
| addEventListener (evt, callbackId) { |
| const cb = e => this.sender.performCallback(callbackId, e, true) |
| if (!handlerTraker[evt]) { |
| handlerTraker[evt] = [cb] |
| } |
| else { |
| handlerTraker[evt].push(cb) |
| } |
| document.addEventListener(evt, cb) |
| }, |
| |
| /** |
| * removeEventListener |
| * @param {string} evt - the event name to remove a listener from. |
| */ |
| removeEventListener (evt) { |
| handlerTraker[evt].forEach(cb => document.removeEventListener(evt, cb)) |
| } |
| } |
| |
| const meta = { |
| globalEvent: [{ |
| name: 'addEventListener', |
| args: ['string', 'function'] |
| }, { |
| name: 'removeEventListener', |
| args: ['string'] |
| }] |
| } |
| |
| export default { |
| init (Weex) { |
| Weex.registerApiModule('globalEvent', globalEvent, meta) |
| } |
| } |