gistfile1.js

(function (window, app, undefined) {
    'use strict';


    app.factory('socket', ['$rootScope', function ($rootScope) {
        var socket = $rootScope.socket;

        var onCallback = function (callback, args) {
            $rootScope.$apply(function () {
                callback.apply(socket, args);
            });
        };

        var emitCallback = function (callback, args) {
            $rootScope.$apply(function () {
                if (callback) {
                    callback.apply(socket, args);
                }
            });
        };

        return {
            on: function (channel, callback) {
                socket.on(channel, function () {
                    onCallback(callback, arguments)
                });
            },
            emit: function (channel, data, callback) {
                // in some instances angular leaves .$$hashKey, etc. on the model, etc. fromJson(toJson( strips the proprietary tags
                // & socket.io can then do it's stringify magic
                socket.emit(channel, angular.fromJson(angular.toJson(data)), function () {
                    emitCallback(callback, arguments);
                });
            },
            of: function (name) {
                return {
                    on: function (channel, callback) {
                        socket.of(name).on(channel, function () {
                            onCallback(callback, arguments)
                        });
                    },
                    emit: function (channel, data, callback) {
                        socket.of(name).emit(channel, angular.fromJson(angular.toJson(data)), function () {
                            emitCallback(callback, arguments);
                        });
                    }
                }
            }
        };
    }]);
})(window, window.app);