Created
April 14, 2014 13:26
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| var WebSocketWrapper = function(url) { | |
| this.url = url; | |
| this.registeredFunctions = {}; | |
| this.ws = null; | |
| this.retry = true; | |
| }; | |
| WebSocketWrapper.prototype.send = function(message) { | |
| this.ws.send(JSON.stringify(message)); | |
| } | |
| WebSocketWrapper.prototype.on = function(action, callback, scope) { | |
| if (!scope) { | |
| scope = window; | |
| } | |
| this.registeredFunctions[action] = {'callback': callback, 'scope': scope}; | |
| }; | |
| WebSocketWrapper.prototype.fireAction = function(action, params) { | |
| if (!(action in this.registeredFunctions)) { | |
| return; | |
| } | |
| var registeredFunction = this.registeredFunctions[action]; | |
| registeredFunction['callback'].call( | |
| registeredFunction['scope'], | |
| params | |
| ); | |
| }; | |
| WebSocketWrapper.prototype.retryConnect = function() { | |
| if (!this.retry) { | |
| return; | |
| } | |
| this.connect(); | |
| } | |
| WebSocketWrapper.prototype.connect = function() { | |
| if (!WebSocketWrapper.isSupported()) { | |
| return; | |
| } | |
| this.retry = true; | |
| this.ws = new WebSocket(this.url); | |
| var ws = this.ws; | |
| var self = this; | |
| ws.onopen = function() { | |
| self.fireAction('onopen'); | |
| }; | |
| ws.onmessage = function(e) { | |
| var data = JSON.parse(e.data); | |
| self.fireAction(data['action'], data); | |
| }; | |
| ws.onclose = function() { | |
| self.fireAction('onclose'); | |
| setTimeout(function() { | |
| self.retryConnect(); | |
| }, 2500); | |
| }; | |
| if ('start' in ws) { | |
| ws.start(); | |
| } | |
| }; | |
| WebSocketWrapper.prototype.disconnect = function() { | |
| this.retry = false; | |
| this.ws.close(); | |
| }; | |
| WebSocketWrapper.isSupported = function() { | |
| return 'WebSocket' in window; | |
| }; |
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