jquery.websocket.js

/*
 * jQuery Web Sockets Plugin v0.0.2
 * https://github.com/dchelimsky/jquery-websocket
 * http://code.google.com/p/jquery-websocket/
 *
 * This document is licensed as free software under the terms of the
 * MIT License: http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright (c) 2010 by shootaroo (Shotaro Tsubouchi).
 */
(function($){
    $.extend({
        websocket: function(url, s) {
       	    if (typeof(WebSocket) == "undefined") {
       	        WebSocket = (MozWebSocket) ? MozWebSocket : null;
       	    }
            var ws = WebSocket ? new WebSocket( url ) : {
                send: function(m){ return false },
                close: function(){}
            };
            var settings = {
                open: function(){},
                close: function(){},
                message: function(){},
                options: {},
                events: {}
            };
            $.extend(settings, $.websocketSettings, s);
            $(ws)
                .bind('open', settings.open)
                .bind('close', settings.close)
                .bind('message', settings.message)
                .bind('message', function(e){
                    var m = $.evalJSON(e.originalEvent.data);
                    var h = settings.events[m.type];
                    if (h) h.call(this, m);
                });
            ws._send = ws.send;
            ws.send = function(type, data) {
                var m = {type: type};
                m = $.extend(true, m, $.extend(true, {}, settings.options, m));
                if (data) m['data'] = data;
                return this._send($.toJSON(m));
            }
            $(window).unload(function(){ ws.close(); ws = null });
            return ws;
        }
    });
})(jQuery);