138 lines
2.7 KiB
JavaScript
138 lines
2.7 KiB
JavaScript
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WebSocketConnection = (function()
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{
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function WebSocketConnection()
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{
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this.MessageHandlers = { };
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this.Socket = null;
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this.Console = null;
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}
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WebSocketConnection.prototype.SetConsole = function(console)
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{
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this.Console = console;
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}
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WebSocketConnection.prototype.Connected = function()
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{
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// Will return true if the socket is also in the process of connecting
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return this.Socket != null;
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}
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WebSocketConnection.prototype.AddConnectHandler = function(handler)
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{
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this.AddMessageHandler("__OnConnect__", handler);
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}
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WebSocketConnection.prototype.AddDisconnectHandler = function(handler)
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{
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this.AddMessageHandler("__OnDisconnect__", handler);
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}
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WebSocketConnection.prototype.AddMessageHandler = function(message_name, handler)
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{
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// Create the message handler array on-demand
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if (!(message_name in this.MessageHandlers))
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this.MessageHandlers[message_name] = [ ];
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this.MessageHandlers[message_name].push(handler);
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}
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WebSocketConnection.prototype.Connect = function(address)
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{
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// Disconnect if already connected
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if (this.Connected())
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this.Disconnect();
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Log(this, "Connecting to " + address);
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this.Socket = new WebSocket(address);
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this.Socket.binaryType = "arraybuffer";
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this.Socket.onopen = Bind(OnOpen, this);
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this.Socket.onmessage = Bind(OnMessage, this);
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this.Socket.onclose = Bind(OnClose, this);
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this.Socket.onerror = Bind(OnError, this);
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}
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WebSocketConnection.prototype.Disconnect = function()
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{
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Log(this, "Disconnecting");
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if (this.Connected())
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this.Socket.close();
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}
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WebSocketConnection.prototype.Send = function(msg)
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{
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if (this.Connected())
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this.Socket.send(msg);
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}
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function Log(self, message)
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{
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self.Console.Log(message);
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}
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function CallMessageHandlers(self, message_name, data_view)
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{
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if (message_name in self.MessageHandlers)
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{
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var handlers = self.MessageHandlers[message_name];
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for (var i in handlers)
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handlers[i](self, data_view);
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}
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}
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function OnOpen(self, event)
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{
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Log(self, "Connected");
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CallMessageHandlers(self, "__OnConnect__");
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}
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function OnClose(self, event)
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{
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// Clear all references
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self.Socket.onopen = null;
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self.Socket.onmessage = null;
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self.Socket.onclose = null;
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self.Socket.onerror = null;
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self.Socket = null;
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Log(self, "Disconnected");
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CallMessageHandlers(self, "__OnDisconnect__");
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}
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function OnError(self, event)
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{
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Log(self, "Connection Error ");
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}
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function OnMessage(self, event)
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{
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var data_view = new DataView(event.data);
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var id = String.fromCharCode(
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data_view.getInt8(0),
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data_view.getInt8(1),
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data_view.getInt8(2),
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data_view.getInt8(3));
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CallMessageHandlers(self, id, data_view);
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}
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return WebSocketConnection;
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})();
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