| /* |
| * 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. |
| */ |
| /** |
| * websocket module |
| */ |
| /*global WebSocket*/ |
| export default (function () { |
| const registerListeners = ['onopen', 'onmessage', 'onerror', 'onclose'] |
| const ws = { |
| INSTANCE: null, |
| WebSocket: function (url, protocol) { |
| if (!url) { |
| ws.INSTANCE = null |
| return |
| } |
| if (!protocol) { |
| ws.INSTANCE = new WebSocket(url) |
| } |
| else { |
| ws.INSTANCE = new WebSocket(url, protocol) |
| } |
| return ws.INSTANCE |
| }, |
| send: function (messages) { |
| ws.INSTANCE && ws.INSTANCE.send(messages) |
| }, |
| close: function () { |
| ws.INSTANCE && ws.INSTANCE.close() |
| } |
| } |
| for (const i in registerListeners) { |
| if (registerListeners.hasOwnProperty(i)) { |
| Object.defineProperty(ws, registerListeners[i], { |
| get: function () { |
| return ws.INSTANCE && ws.INSTANCE[registerListeners[i]] |
| }, |
| set: function (fn) { |
| if (ws.INSTANCE) { |
| ws.INSTANCE[registerListeners[i]] = fn |
| } |
| } |
| }) |
| } |
| } |
| return ws |
| })() |
