added websocket support

framework/assets/js/websocket.js

@@ -0,0 +1,70 @@
+/*
+ *	In DroidGap class, attach WebSocketFactoy like this,
+ *  appView.addJavascriptInterface(new WebSocketFactory(appView), "WebSocketFactory");
+ *  
+ *  Now, in your html file, 
+ *  1. Include websocket.js 
+ *  	<script type="text/javascript" charset="utf-8" src="js/websocket.js"></script>
+ *  2. Create WebSocket object, and override event methods, 
+ *  
+ *	// new socket
+ *	var socket = new WebSocket('ws://122.168.196.27:8082/');
+ *			
+ *	// push a message after the connection is established.
+ *	socket.onopen = function() {
+ *		socket.send('--message--')
+ *	};
+ *			
+ *	// alerts message pushed from server
+ *	socket.onmessage = function(msg) {
+ *		alert(JSON.stringify(msg));
+ *	};
+ *			
+ *	// alert close event
+ *	socket.onclose = function() {
+ *		alert('closed');
+ *	};
+ *
+ */
+(function() {
+	
+	// window object
+	var global = window;
+	
+	// WebSocket Object. All listener methods are cleaned up!
+	var WebSocket = global.WebSocket = function(url) {
+		// must be overloaded
+		this.onopen = null;
+		this.onmessage = null;
+		this.onclose = null;
+		
+		// get a new websocket object from factory (check com.strumsoft.websocket.WebSocketFactory.java)
+		this.socket = WebSocketFactory.getInstance(url);
+		// store in registry
+		WebSocket.store[this.socket.getId()] = this;
+	};
+	
+	// storage to hold websocket object for later invokation of event methods
+	WebSocket.store = {};
+	
+	// static event methods to call event methods on target websocket objects
+	WebSocket.onmessage = function (evt) {
+		WebSocket.store[evt._target]['onmessage'].call(global, evt._data);
+	}	
+	
+	WebSocket.onopen = function (evt) {
+		WebSocket.store[evt._target]['onopen'].call(global, evt._data);
+	}
+	
+	WebSocket.onclose = function (evt) {
+		WebSocket.store[evt._target]['onclose'].call(global, evt._data);
+	}
+	
+	WebSocket.prototype.send = function(data) {
+		this.socket.send(data);
+	}
+
+	WebSocket.prototype.close = function() {
+		this.socket.close();
+	}
+})();