SignalR knockout

SignalR.knockout.js

/// <reference path="jquery-1.6.2.js" />
(function (window) {
    "use strict";

    if (typeof (window.signalR) !== "function") {
        throw "SignalR: SignalR is not loaded. Please ensure SignalR.js is referenced before ~/signalr/hubs.";
    }

    var viewModels = {};
    var oldProcessState = window.signalR.hub.processState;

    // TODO: Make this per hub
    window.signalR.hub.processState = function (hubName, newState, state) {
        oldProcessState(hubName, newState, state);
        $.each(newState, function (key) {
            var hubViewModels = viewModels[hubName];
            if (hubViewModels) {
                $.each(hubViewModels, function () {
                    if (this[key]) {
                        this[key](newState[key]);
                    }
                });
            }
        });
    };

    $.each(window.signalR, function () {
        var that = this;
        if (that._) {
            that._.ignoreMembers.push('ko');
            that.ko = function (viewModel) {
                var hubViewModels = viewModels[that._.hubName];
                if (!hubViewModels) {
                    hubViewModels = [];
                    viewModels[that._.hubName] = hubViewModels;
                }
                hubViewModels.push(viewModel);
            };
        }
    });
})(window);