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1523 lines
58 KiB
1523 lines
58 KiB
/* jquery.signalR.core.js */
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/*global window:false */
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/*!
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* SignalR JavaScript Library v0.5.3
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* http://signalr.net/
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*
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* Copyright David Fowler and Damian Edwards 2012
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* Licensed under the MIT.
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* https://github.com/SignalR/SignalR/blob/master/LICENSE.md
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*/
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/// <reference path="Scripts/jquery-1.6.2.js" />
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(function ($, window) {
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"use strict";
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if (typeof ($) !== "function") {
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// no jQuery!
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throw "SignalR: jQuery not found. Please ensure jQuery is referenced before the SignalR.js file.";
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}
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if (!window.JSON) {
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// no JSON!
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throw "SignalR: No JSON parser found. Please ensure json2.js is referenced before the SignalR.js file if you need to support clients without native JSON parsing support, e.g. IE<8.";
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}
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var signalR,
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_connection,
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_pageLoaded = false,
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_pageWindow = $(window),
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events = {
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onStart: "onStart",
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onStarting: "onStarting",
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onSending: "onSending",
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onReceived: "onReceived",
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onError: "onError",
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onReconnect: "onReconnect",
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onStateChanged: "onStateChanged",
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onDisconnect: "onDisconnect"
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},
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log = function (msg, logging) {
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if (logging === false) {
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return;
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}
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var m;
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if (typeof (window.console) === "undefined") {
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return;
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}
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m = "[" + new Date().toTimeString() + "] SignalR: " + msg;
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if (window.console.debug) {
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window.console.debug(m);
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} else if (window.console.log) {
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window.console.log(m);
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}
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},
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isCrossDomain = function (url) {
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var link;
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url = $.trim(url);
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if (url.indexOf("http") !== 0) {
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return false;
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}
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// Create an anchor tag.
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link = window.document.createElement("a");
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link.href = url;
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return link.protocol + link.host !== window.location.protocol + window.location.host;
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},
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changeState = function (connection, expectedState, newState) {
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if (expectedState === connection.state) {
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// REVIEW: Should event fire before or after the state change actually occurs?
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$(connection).trigger(events.onStateChanged, [{ oldState: connection.state, newState: newState }]);
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connection.state = newState;
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return true;
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}
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return false;
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},
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isDisconnecting = function (connection) {
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return connection.state === signalR.connectionState.disconnected;
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};
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signalR = function (url, qs, logging) {
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/// <summary>Creates a new SignalR connection for the given url</summary>
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/// <param name="url" type="String">The URL of the long polling endpoint</param>
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/// <param name="qs" type="Object">
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/// [Optional] Custom querystring parameters to add to the connection URL.
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/// If an object, every non-function member will be added to the querystring.
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/// If a string, it's added to the QS as specified.
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/// </param>
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/// <param name="logging" type="Boolean">
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/// [Optional] A flag indicating whether connection logging is enabled to the browser
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/// console/log. Defaults to false.
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/// </param>
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return new signalR.fn.init(url, qs, logging);
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};
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signalR.events = events;
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signalR.changeState = changeState;
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signalR.isDisconnecting = isDisconnecting;
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signalR.connectionState = {
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connecting: 0,
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connected: 1,
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reconnecting: 2,
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disconnected: 4
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};
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signalR.hub = {
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start: function () {
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// This will get replaced with the real hub connection start method when hubs is referenced correctly
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throw "SignalR: Error loading hubs. Ensure your hubs reference is correct, e.g. <script src='/signalr/hubs'></script>.";
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}
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};
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_pageWindow.load(function () { _pageLoaded = true; });
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signalR.fn = signalR.prototype = {
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init: function (url, qs, logging) {
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this.url = url;
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this.qs = qs;
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if (typeof (logging) === "boolean") {
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this.logging = logging;
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}
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},
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ajaxDataType: "json",
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logging: false,
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state: signalR.connectionState.disconnected,
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reconnectDelay: 2000,
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start: function (options, callback) {
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/// <summary>Starts the connection</summary>
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/// <param name="options" type="Object">Options map</param>
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/// <param name="callback" type="Function">A callback function to execute when the connection has started</param>
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var connection = this,
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config = {
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waitForPageLoad: true,
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transport: "auto",
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jsonp: false
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},
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initialize,
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deferred = connection.deferral || $.Deferred(),// Check to see if there is a pre-existing deferral that's being built on, if so we want to keep using it
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parser = window.document.createElement("a");
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if ($.type(options) === "function") {
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// Support calling with single callback parameter
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callback = options;
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} else if ($.type(options) === "object") {
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$.extend(config, options);
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if ($.type(config.callback) === "function") {
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callback = config.callback;
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}
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}
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// Check to see if start is being called prior to page load
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// If waitForPageLoad is true we then want to re-direct function call to the window load event
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if (!_pageLoaded && config.waitForPageLoad === true) {
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_pageWindow.load(function () {
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connection.deferral = deferred;
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connection.start(options, callback);
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});
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return deferred.promise();
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}
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if (changeState(connection,
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signalR.connectionState.disconnected,
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signalR.connectionState.connecting) === false) {
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// Already started, just return
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deferred.resolve(connection);
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return deferred.promise();
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}
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// Resolve the full url
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parser.href = connection.url;
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if (!parser.protocol || parser.protocol === ":") {
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connection.protocol = window.document.location.protocol;
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connection.host = window.document.location.host;
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connection.baseUrl = connection.protocol + "//" + connection.host;
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}
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else {
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connection.protocol = parser.protocol;
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connection.host = parser.host;
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connection.baseUrl = parser.protocol + "//" + parser.host;
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}
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// Set the websocket protocol
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connection.wsProtocol = connection.protocol === "https:" ? "wss://" : "ws://";
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if (isCrossDomain(connection.url)) {
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connection.log("Auto detected cross domain url.");
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if (config.transport === "auto") {
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// If you didn't say you wanted to use jsonp, determine if it's your only choice
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// i.e. if your browser doesn't supports CORS
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if (!config.jsonp) {
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config.jsonp = !$.support.cors;
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if (config.jsonp) {
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connection.log("Using jsonp because this browser doesn't support CORS");
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}
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}
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// If we're using jsonp thn just change to longpolling
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if (config.jsonp === true) {
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config.transport = "longPolling";
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}
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else {
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// Otherwise try webSockets and longPolling since SSE doesn't support CORS
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// TODO: Support XDM with foreverFrame
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config.transport = ["webSockets", "longPolling"];
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}
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}
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}
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connection.ajaxDataType = config.jsonp ? "jsonp" : "json";
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$(connection).bind(events.onStart, function (e, data) {
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if ($.type(callback) === "function") {
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callback.call(connection);
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}
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deferred.resolve(connection);
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});
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initialize = function (transports, index) {
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index = index || 0;
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if (index >= transports.length) {
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if (!connection.transport) {
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// No transport initialized successfully
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$(connection).trigger(events.onError, "SignalR: No transport could be initialized successfully. Try specifying a different transport or none at all for auto initialization.");
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deferred.reject("SignalR: No transport could be initialized successfully. Try specifying a different transport or none at all for auto initialization.");
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// Stop the connection if it has connected and move it into the disconnected state
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connection.stop();
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}
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return;
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}
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var transportName = transports[index],
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transport = $.type(transportName) === "object" ? transportName : signalR.transports[transportName];
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if (transportName.indexOf("_") === 0) {
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// Private member
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initialize(transports, index + 1);
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return;
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}
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transport.start(connection, function () { // success
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connection.transport = transport;
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changeState(connection,
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signalR.connectionState.connecting,
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signalR.connectionState.connected);
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$(connection).trigger(events.onStart);
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_pageWindow.unload(function () { // failure
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connection.stop(false /* async */);
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});
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}, function () {
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initialize(transports, index + 1);
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});
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};
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var url = connection.url + "/negotiate";
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connection.log("Negotiating with '" + url + "'.");
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$.ajax({
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url: url,
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global: false,
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cache: false,
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type: "GET",
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data: {},
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dataType: connection.ajaxDataType,
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error: function (error) {
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$(connection).trigger(events.onError, [error.responseText]);
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deferred.reject("SignalR: Error during negotiation request: " + error.responseText);
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// Stop the connection if negotiate failed
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connection.stop();
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},
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success: function (res) {
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connection.appRelativeUrl = res.Url;
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connection.id = res.ConnectionId;
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connection.webSocketServerUrl = res.WebSocketServerUrl;
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if (!res.ProtocolVersion || res.ProtocolVersion !== "1.0") {
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$(connection).trigger(events.onError, "SignalR: Incompatible protocol version.");
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deferred.reject("SignalR: Incompatible protocol version.");
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return;
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}
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$(connection).trigger(events.onStarting);
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var transports = [],
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supportedTransports = [];
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$.each(signalR.transports, function (key) {
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if (key === "webSockets" && !res.TryWebSockets) {
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// Server said don't even try WebSockets, but keep processing the loop
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return true;
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}
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supportedTransports.push(key);
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});
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if ($.isArray(config.transport)) {
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// ordered list provided
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$.each(config.transport, function () {
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var transport = this;
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if ($.type(transport) === "object" || ($.type(transport) === "string" && $.inArray("" + transport, supportedTransports) >= 0)) {
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transports.push($.type(transport) === "string" ? "" + transport : transport);
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}
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});
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} else if ($.type(config.transport) === "object" ||
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$.inArray(config.transport, supportedTransports) >= 0) {
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// specific transport provided, as object or a named transport, e.g. "longPolling"
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transports.push(config.transport);
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} else { // default "auto"
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transports = supportedTransports;
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}
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initialize(transports);
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}
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});
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return deferred.promise();
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},
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starting: function (callback) {
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/// <summary>Adds a callback that will be invoked before the connection is started</summary>
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/// <param name="callback" type="Function">A callback function to execute when the connection is starting</param>
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/// <returns type="signalR" />
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var connection = this,
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$connection = $(connection);
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$connection.bind(events.onStarting, function (e, data) {
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callback.call(connection);
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// Unbind immediately, we don't want to call this callback again
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$connection.unbind(events.onStarting);
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});
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return connection;
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},
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send: function (data) {
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/// <summary>Sends data over the connection</summary>
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/// <param name="data" type="String">The data to send over the connection</param>
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/// <returns type="signalR" />
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var connection = this;
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if (connection.state === signalR.connectionState.disconnected) {
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// Connection hasn't been started yet
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throw "SignalR: Connection must be started before data can be sent. Call .start() before .send()";
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}
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if (connection.state === signalR.connectionState.connecting) {
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// Connection hasn't been started yet
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throw "SignalR: Connection has not been fully initialized. Use .start().done() or .start().fail() to run logic after the connection has started.";
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}
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connection.transport.send(connection, data);
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// REVIEW: Should we return deferred here?
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return connection;
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},
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sending: function (callback) {
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/// <summary>Adds a callback that will be invoked before anything is sent over the connection</summary>
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/// <param name="callback" type="Function">A callback function to execute before each time data is sent on the connection</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onSending, function (e, data) {
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callback.call(connection);
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});
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return connection;
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},
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received: function (callback) {
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/// <summary>Adds a callback that will be invoked after anything is received over the connection</summary>
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/// <param name="callback" type="Function">A callback function to execute when any data is received on the connection</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onReceived, function (e, data) {
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callback.call(connection, data);
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});
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return connection;
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},
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stateChanged: function (callback) {
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/// <summary>Adds a callback that will be invoked when the connection state changes</summary>
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/// <param name="callback" type="Function">A callback function to execute when the connection state changes</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onStateChanged, function (e, data) {
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callback.call(connection, data);
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});
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return connection;
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},
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error: function (callback) {
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/// <summary>Adds a callback that will be invoked after an error occurs with the connection</summary>
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/// <param name="callback" type="Function">A callback function to execute when an error occurs on the connection</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onError, function (e, data) {
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callback.call(connection, data);
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});
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return connection;
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},
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disconnected: function (callback) {
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/// <summary>Adds a callback that will be invoked when the client disconnects</summary>
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/// <param name="callback" type="Function">A callback function to execute when the connection is broken</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onDisconnect, function (e, data) {
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callback.call(connection);
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});
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return connection;
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},
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reconnected: function (callback) {
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/// <summary>Adds a callback that will be invoked when the underlying transport reconnects</summary>
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/// <param name="callback" type="Function">A callback function to execute when the connection is restored</param>
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/// <returns type="signalR" />
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var connection = this;
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$(connection).bind(events.onReconnect, function (e, data) {
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callback.call(connection);
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});
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return connection;
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},
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stop: function (async) {
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/// <summary>Stops listening</summary>
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/// <returns type="signalR" />
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var connection = this;
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if (connection.state === signalR.connectionState.disconnected) {
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return;
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}
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try {
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if (connection.transport) {
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connection.transport.abort(connection, async);
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connection.transport.stop(connection);
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connection.transport = null;
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}
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// Trigger the disconnect event
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$(connection).trigger(events.onDisconnect);
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delete connection.messageId;
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delete connection.groups;
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}
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finally {
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changeState(connection, connection.state, signalR.connectionState.disconnected);
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}
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return connection;
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},
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log: function (msg) {
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log(msg, this.logging);
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}
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};
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signalR.fn.init.prototype = signalR.fn;
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signalR.noConflict = function () {
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/// <summary>Reinstates the original value of $.connection and returns the signalR object for manual assignment</summary>
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/// <returns type="signalR" />
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if ($.connection === signalR) {
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$.connection = _connection;
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}
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return signalR;
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};
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if ($.connection) {
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_connection = $.connection;
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}
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$.connection = $.signalR = signalR;
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}(window.jQuery, window));
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/* jquery.signalR.transports.common.js */
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|
/*global window:false */
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|
/// <reference path="jquery.signalR.core.js" />
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|
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(function ($, window) {
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"use strict";
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var signalR = $.signalR,
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events = $.signalR.events;
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signalR.transports = {};
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signalR.transports._logic = {
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addQs: function (url, connection) {
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if (!connection.qs) {
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return url;
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}
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if (typeof (connection.qs) === "object") {
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return url + "&" + $.param(connection.qs);
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}
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if (typeof (connection.qs) === "string") {
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return url + "&" + connection.qs;
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}
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return url + "&" + window.escape(connection.qs.toString());
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},
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getUrl: function (connection, transport, reconnecting, appendReconnectUrl) {
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/// <summary>Gets the url for making a GET based connect request</summary>
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var baseUrl = transport === "webSockets" ? "" : connection.baseUrl,
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url = baseUrl + connection.appRelativeUrl,
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qs = "transport=" + transport + "&connectionId=" + window.escape(connection.id);
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if (connection.data) {
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qs += "&connectionData=" + window.escape(connection.data);
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}
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if (!reconnecting) {
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url = url + "/connect";
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} else {
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if (appendReconnectUrl) {
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url = url + "/reconnect";
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}
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if (connection.messageId) {
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qs += "&messageId=" + connection.messageId;
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}
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if (connection.groups) {
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qs += "&groups=" + window.escape(JSON.stringify(connection.groups));
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}
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|
}
|
|
url += "?" + qs;
|
|
url = this.addQs(url, connection);
|
|
url += "&tid=" + Math.floor(Math.random() * 11);
|
|
return url;
|
|
},
|
|
|
|
ajaxSend: function (connection, data) {
|
|
var url = connection.url + "/send" + "?transport=" + connection.transport.name + "&connectionId=" + window.escape(connection.id);
|
|
url = this.addQs(url, connection);
|
|
return $.ajax({
|
|
url: url,
|
|
global: false,
|
|
type: "POST",
|
|
dataType: connection.ajaxDataType,
|
|
data: {
|
|
data: data
|
|
},
|
|
success: function (result) {
|
|
if (result) {
|
|
$(connection).trigger(events.onReceived, [result]);
|
|
}
|
|
},
|
|
error: function (errData, textStatus) {
|
|
if (textStatus === "abort" ||
|
|
(textStatus === "parsererror" && connection.ajaxDataType === "jsonp")) {
|
|
// The parsererror happens for sends that don't return any data, and hence
|
|
// don't write the jsonp callback to the response. This is harder to fix on the server
|
|
// so just hack around it on the client for now.
|
|
return;
|
|
}
|
|
$(connection).trigger(events.onError, [errData]);
|
|
}
|
|
});
|
|
},
|
|
|
|
ajaxAbort: function (connection, async) {
|
|
if (typeof (connection.transport) === "undefined") {
|
|
return;
|
|
}
|
|
|
|
// Async by default unless explicitly overidden
|
|
async = typeof async === "undefined" ? true : async;
|
|
|
|
var url = connection.url + "/abort" + "?transport=" + connection.transport.name + "&connectionId=" + window.escape(connection.id);
|
|
url = this.addQs(url, connection);
|
|
$.ajax({
|
|
url: url,
|
|
async: async,
|
|
timeout: 1000,
|
|
global: false,
|
|
type: "POST",
|
|
dataType: connection.ajaxDataType,
|
|
data: {}
|
|
});
|
|
|
|
connection.log("Fired ajax abort async = " + async);
|
|
},
|
|
|
|
processMessages: function (connection, data) {
|
|
var $connection = $(connection);
|
|
|
|
if (!data) {
|
|
return;
|
|
}
|
|
|
|
if (data.Disconnect) {
|
|
connection.log("Disconnect command received from server");
|
|
|
|
// Disconnected by the server
|
|
connection.stop();
|
|
return;
|
|
}
|
|
|
|
if (data.Messages) {
|
|
$.each(data.Messages, function () {
|
|
try {
|
|
$connection.trigger(events.onReceived, [this]);
|
|
}
|
|
catch (e) {
|
|
connection.log("Error raising received " + e);
|
|
$(connection).trigger(events.onError, [e]);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (data.MessageId) {
|
|
connection.messageId = data.MessageId;
|
|
}
|
|
|
|
if (data.TransportData) {
|
|
connection.groups = data.TransportData.Groups;
|
|
}
|
|
},
|
|
|
|
foreverFrame: {
|
|
count: 0,
|
|
connections: {}
|
|
}
|
|
};
|
|
|
|
}(window.jQuery, window));
|
|
/* jquery.signalR.transports.webSockets.js */
|
|
/*global window:false */
|
|
/// <reference path="jquery.signalR.transports.common.js" />
|
|
|
|
(function ($, window) {
|
|
"use strict";
|
|
|
|
var signalR = $.signalR,
|
|
events = $.signalR.events,
|
|
changeState = $.signalR.changeState,
|
|
transportLogic = signalR.transports._logic;
|
|
|
|
signalR.transports.webSockets = {
|
|
name: "webSockets",
|
|
|
|
send: function (connection, data) {
|
|
connection.socket.send(data);
|
|
},
|
|
|
|
start: function (connection, onSuccess, onFailed) {
|
|
var url,
|
|
opened = false,
|
|
that = this,
|
|
reconnecting = !onSuccess,
|
|
$connection = $(connection);
|
|
|
|
if (window.MozWebSocket) {
|
|
window.WebSocket = window.MozWebSocket;
|
|
}
|
|
|
|
if (!window.WebSocket) {
|
|
onFailed();
|
|
return;
|
|
}
|
|
|
|
if (!connection.socket) {
|
|
if (connection.webSocketServerUrl) {
|
|
url = connection.webSocketServerUrl;
|
|
}
|
|
else {
|
|
url = connection.wsProtocol + connection.host;
|
|
}
|
|
|
|
// Build the url
|
|
$(connection).trigger(events.onSending);
|
|
|
|
url += transportLogic.getUrl(connection, this.name, reconnecting);
|
|
|
|
connection.log("Connecting to websocket endpoint '" + url + "'");
|
|
connection.socket = new window.WebSocket(url);
|
|
connection.socket.onopen = function () {
|
|
opened = true;
|
|
connection.log("Websocket opened");
|
|
if (onSuccess) {
|
|
onSuccess();
|
|
}
|
|
else {
|
|
if (changeState(connection,
|
|
signalR.connectionState.reconnecting,
|
|
signalR.connectionState.connected) === true) {
|
|
$connection.trigger(events.onReconnect);
|
|
}
|
|
}
|
|
};
|
|
|
|
connection.socket.onclose = function (event) {
|
|
if (!opened) {
|
|
if (onFailed) {
|
|
onFailed();
|
|
}
|
|
else if (reconnecting) {
|
|
that.reconnect(connection);
|
|
}
|
|
return;
|
|
}
|
|
else if (typeof event.wasClean !== "undefined" && event.wasClean === false) {
|
|
// Ideally this would use the websocket.onerror handler (rather than checking wasClean in onclose) but
|
|
// I found in some circumstances Chrome won't call onerror. This implementation seems to work on all browsers.
|
|
$(connection).trigger(events.onError, [event.reason]);
|
|
connection.log("Unclean disconnect from websocket." + event.reason);
|
|
}
|
|
else {
|
|
connection.log("Websocket closed");
|
|
}
|
|
|
|
that.reconnect(connection);
|
|
};
|
|
|
|
connection.socket.onmessage = function (event) {
|
|
var data = window.JSON.parse(event.data),
|
|
$connection;
|
|
if (data) {
|
|
$connection = $(connection);
|
|
|
|
if (data.Messages) {
|
|
transportLogic.processMessages(connection, data);
|
|
} else {
|
|
$connection.trigger(events.onReceived, [data]);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
},
|
|
|
|
reconnect: function (connection) {
|
|
var that = this;
|
|
window.setTimeout(function () {
|
|
that.stop(connection);
|
|
|
|
if (connection.state === signalR.connectionState.reconnecting ||
|
|
changeState(connection,
|
|
signalR.connectionState.connected,
|
|
signalR.connectionState.reconnecting) === true) {
|
|
|
|
connection.log("Websocket reconnecting");
|
|
that.start(connection);
|
|
}
|
|
},
|
|
connection.reconnectDelay);
|
|
},
|
|
|
|
stop: function (connection) {
|
|
if (connection.socket !== null) {
|
|
connection.log("Closing the Websocket");
|
|
connection.socket.close();
|
|
connection.socket = null;
|
|
}
|
|
},
|
|
|
|
abort: function (connection) {
|
|
}
|
|
};
|
|
|
|
}(window.jQuery, window));
|
|
/* jquery.signalR.transports.serverSentEvents.js */
|
|
/*global window:false */
|
|
/// <reference path="jquery.signalR.transports.common.js" />
|
|
|
|
(function ($, window) {
|
|
"use strict";
|
|
|
|
var signalR = $.signalR,
|
|
events = $.signalR.events,
|
|
changeState = $.signalR.changeState,
|
|
transportLogic = signalR.transports._logic;
|
|
|
|
signalR.transports.serverSentEvents = {
|
|
name: "serverSentEvents",
|
|
|
|
timeOut: 3000,
|
|
|
|
start: function (connection, onSuccess, onFailed) {
|
|
var that = this,
|
|
opened = false,
|
|
$connection = $(connection),
|
|
reconnecting = !onSuccess,
|
|
url,
|
|
connectTimeOut;
|
|
|
|
if (connection.eventSource) {
|
|
connection.log("The connection already has an event source. Stopping it.");
|
|
connection.stop();
|
|
}
|
|
|
|
if (!window.EventSource) {
|
|
if (onFailed) {
|
|
connection.log("This browser doesn't support SSE.");
|
|
onFailed();
|
|
}
|
|
return;
|
|
}
|
|
|
|
$connection.trigger(events.onSending);
|
|
|
|
url = transportLogic.getUrl(connection, this.name, reconnecting);
|
|
|
|
try {
|
|
connection.log("Attempting to connect to SSE endpoint '" + url + "'");
|
|
connection.eventSource = new window.EventSource(url);
|
|
}
|
|
catch (e) {
|
|
connection.log("EventSource failed trying to connect with error " + e.Message);
|
|
if (onFailed) {
|
|
// The connection failed, call the failed callback
|
|
onFailed();
|
|
}
|
|
else {
|
|
$connection.trigger(events.onError, [e]);
|
|
if (reconnecting) {
|
|
// If we were reconnecting, rather than doing initial connect, then try reconnect again
|
|
that.reconnect(connection);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
// After connecting, if after the specified timeout there's no response stop the connection
|
|
// and raise on failed
|
|
connectTimeOut = window.setTimeout(function () {
|
|
if (opened === false) {
|
|
connection.log("EventSource timed out trying to connect");
|
|
connection.log("EventSource readyState: " + connection.eventSource.readyState);
|
|
|
|
if (!reconnecting) {
|
|
that.stop(connection);
|
|
}
|
|
|
|
if (reconnecting) {
|
|
// If we're reconnecting and the event source is attempting to connect,
|
|
// don't keep retrying. This causes duplicate connections to spawn.
|
|
if (connection.eventSource.readyState !== window.EventSource.CONNECTING &&
|
|
connection.eventSource.readyState !== window.EventSource.OPEN) {
|
|
// If we were reconnecting, rather than doing initial connect, then try reconnect again
|
|
that.reconnect(connection);
|
|
}
|
|
} else if (onFailed) {
|
|
onFailed();
|
|
}
|
|
}
|
|
},
|
|
that.timeOut);
|
|
|
|
connection.eventSource.addEventListener("open", function (e) {
|
|
connection.log("EventSource connected");
|
|
|
|
if (connectTimeOut) {
|
|
window.clearTimeout(connectTimeOut);
|
|
}
|
|
|
|
if (opened === false) {
|
|
opened = true;
|
|
|
|
if (onSuccess) {
|
|
onSuccess();
|
|
}
|
|
|
|
if (reconnecting) {
|
|
if (changeState(connection,
|
|
signalR.connectionState.reconnecting,
|
|
signalR.connectionState.connected) === true) {
|
|
$connection.trigger(events.onReconnect);
|
|
}
|
|
}
|
|
}
|
|
}, false);
|
|
|
|
connection.eventSource.addEventListener("message", function (e) {
|
|
// process messages
|
|
if (e.data === "initialized") {
|
|
return;
|
|
}
|
|
transportLogic.processMessages(connection, window.JSON.parse(e.data));
|
|
}, false);
|
|
|
|
connection.eventSource.addEventListener("error", function (e) {
|
|
if (!opened) {
|
|
if (onFailed) {
|
|
onFailed();
|
|
}
|
|
return;
|
|
}
|
|
|
|
connection.log("EventSource readyState: " + connection.eventSource.readyState);
|
|
|
|
if (e.eventPhase === window.EventSource.CLOSED) {
|
|
// We don't use the EventSource's native reconnect function as it
|
|
// doesn't allow us to change the URL when reconnecting. We need
|
|
// to change the URL to not include the /connect suffix, and pass
|
|
// the last message id we received.
|
|
connection.log("EventSource reconnecting due to the server connection ending");
|
|
that.reconnect(connection);
|
|
} else {
|
|
// connection error
|
|
connection.log("EventSource error");
|
|
$connection.trigger(events.onError);
|
|
}
|
|
}, false);
|
|
},
|
|
|
|
reconnect: function (connection) {
|
|
var that = this;
|
|
window.setTimeout(function () {
|
|
that.stop(connection);
|
|
|
|
if (connection.state === signalR.connectionState.reconnecting ||
|
|
changeState(connection,
|
|
signalR.connectionState.connected,
|
|
signalR.connectionState.reconnecting) === true) {
|
|
connection.log("EventSource reconnecting");
|
|
that.start(connection);
|
|
}
|
|
|
|
}, connection.reconnectDelay);
|
|
},
|
|
|
|
send: function (connection, data) {
|
|
transportLogic.ajaxSend(connection, data);
|
|
},
|
|
|
|
stop: function (connection) {
|
|
if (connection && connection.eventSource) {
|
|
connection.log("EventSource calling close()");
|
|
connection.eventSource.close();
|
|
connection.eventSource = null;
|
|
delete connection.eventSource;
|
|
}
|
|
},
|
|
abort: function (connection, async) {
|
|
transportLogic.ajaxAbort(connection, async);
|
|
}
|
|
};
|
|
|
|
}(window.jQuery, window));
|
|
/* jquery.signalR.transports.foreverFrame.js */
|
|
/*global window:false */
|
|
/// <reference path="jquery.signalR.transports.common.js" />
|
|
|
|
(function ($, window) {
|
|
"use strict";
|
|
|
|
var signalR = $.signalR,
|
|
events = $.signalR.events,
|
|
changeState = $.signalR.changeState,
|
|
transportLogic = signalR.transports._logic;
|
|
|
|
signalR.transports.foreverFrame = {
|
|
name: "foreverFrame",
|
|
|
|
timeOut: 3000,
|
|
|
|
start: function (connection, onSuccess, onFailed) {
|
|
var that = this,
|
|
frameId = (transportLogic.foreverFrame.count += 1),
|
|
url,
|
|
connectTimeOut,
|
|
frame = $("<iframe data-signalr-connection-id='" + connection.id + "' style='position:absolute;top:0;left:0;width:0;height:0;visibility:hidden;' src=''></iframe>");
|
|
|
|
if (window.EventSource) {
|
|
// If the browser supports SSE, don't use Forever Frame
|
|
if (onFailed) {
|
|
connection.log("This brower supports SSE, skipping Forever Frame.");
|
|
onFailed();
|
|
}
|
|
return;
|
|
}
|
|
|
|
$(connection).trigger(events.onSending);
|
|
|
|
// Build the url
|
|
url = transportLogic.getUrl(connection, this.name);
|
|
url += "&frameId=" + frameId;
|
|
|
|
frame.prop("src", url);
|
|
transportLogic.foreverFrame.connections[frameId] = connection;
|
|
|
|
connection.log("Binding to iframe's readystatechange event.");
|
|
frame.bind("readystatechange", function () {
|
|
if ($.inArray(this.readyState, ["loaded", "complete"]) >= 0) {
|
|
connection.log("Forever frame iframe readyState changed to " + this.readyState + ", reconnecting");
|
|
|
|
that.reconnect(connection);
|
|
}
|
|
});
|
|
|
|
connection.frame = frame[0];
|
|
connection.frameId = frameId;
|
|
|
|
if (onSuccess) {
|
|
connection.onSuccess = onSuccess;
|
|
}
|
|
|
|
$("body").append(frame);
|
|
|
|
// After connecting, if after the specified timeout there's no response stop the connection
|
|
// and raise on failed
|
|
// REVIEW: Why is connectTimeOut set here and never used again?
|
|
connectTimeOut = window.setTimeout(function () {
|
|
if (connection.onSuccess) {
|
|
connection.log("Failed to connect using forever frame source, it timed out after " + that.timeOut + "ms.");
|
|
that.stop(connection);
|
|
|
|
if (onFailed) {
|
|
onFailed();
|
|
}
|
|
}
|
|
}, that.timeOut);
|
|
},
|
|
|
|
reconnect: function (connection) {
|
|
var that = this;
|
|
window.setTimeout(function () {
|
|
if (!connection.frame) {
|
|
return;
|
|
}
|
|
|
|
if (connection.state === signalR.connectionState.reconnecting ||
|
|
changeState(connection,
|
|
signalR.connectionState.connected,
|
|
signalR.connectionState.reconnecting) === true) {
|
|
|
|
var frame = connection.frame,
|
|
src = transportLogic.getUrl(connection, that.name, true) + "&frameId=" + connection.frameId;
|
|
connection.log("Upating iframe src to '" + src + "'.");
|
|
frame.src = src;
|
|
}
|
|
|
|
}, connection.reconnectDelay);
|
|
},
|
|
|
|
send: function (connection, data) {
|
|
transportLogic.ajaxSend(connection, data);
|
|
},
|
|
|
|
receive: function (connection, data) {
|
|
var cw;
|
|
transportLogic.processMessages(connection, data);
|
|
// Delete the script & div elements
|
|
connection.frameMessageCount = (connection.frameMessageCount || 0) + 1;
|
|
if (connection.frameMessageCount > 50) {
|
|
connection.frameMessageCount = 0;
|
|
cw = connection.frame.contentWindow || connection.frame.contentDocument;
|
|
if (cw && cw.document) {
|
|
$("body", cw.document).empty();
|
|
}
|
|
}
|
|
},
|
|
|
|
stop: function (connection) {
|
|
var cw = null;
|
|
if (connection.frame) {
|
|
if (connection.frame.stop) {
|
|
connection.frame.stop();
|
|
} else {
|
|
cw = connection.frame.contentWindow || connection.frame.contentDocument;
|
|
if (cw.document && cw.document.execCommand) {
|
|
cw.document.execCommand("Stop");
|
|
}
|
|
}
|
|
$(connection.frame).remove();
|
|
delete transportLogic.foreverFrame.connections[connection.frameId];
|
|
connection.frame = null;
|
|
connection.frameId = null;
|
|
delete connection.frame;
|
|
delete connection.frameId;
|
|
connection.log("Stopping forever frame");
|
|
}
|
|
},
|
|
|
|
abort: function (connection, async) {
|
|
transportLogic.ajaxAbort(connection, async);
|
|
},
|
|
|
|
getConnection: function (id) {
|
|
return transportLogic.foreverFrame.connections[id];
|
|
},
|
|
|
|
started: function (connection) {
|
|
if (connection.onSuccess) {
|
|
connection.onSuccess();
|
|
connection.onSuccess = null;
|
|
delete connection.onSuccess;
|
|
}
|
|
else {
|
|
if (changeState(connection,
|
|
signalR.connectionState.reconnecting,
|
|
signalR.connectionState.connected) === true) {
|
|
// If there's no onSuccess handler we assume this is a reconnect
|
|
$(connection).trigger(events.onReconnect);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
}(window.jQuery, window));
|
|
/* jquery.signalR.transports.longPolling.js */
|
|
/*global window:false */
|
|
/// <reference path="jquery.signalR.transports.common.js" />
|
|
|
|
(function ($, window) {
|
|
"use strict";
|
|
|
|
var signalR = $.signalR,
|
|
events = $.signalR.events,
|
|
changeState = $.signalR.changeState,
|
|
isDisconnecting = $.signalR.isDisconnecting,
|
|
transportLogic = signalR.transports._logic;
|
|
|
|
signalR.transports.longPolling = {
|
|
name: "longPolling",
|
|
|
|
reconnectDelay: 3000,
|
|
|
|
start: function (connection, onSuccess, onFailed) {
|
|
/// <summary>Starts the long polling connection</summary>
|
|
/// <param name="connection" type="signalR">The SignalR connection to start</param>
|
|
var that = this,
|
|
initialConnectFired = false;
|
|
|
|
if (connection.pollXhr) {
|
|
connection.log("Polling xhr requests already exists, aborting.");
|
|
connection.stop();
|
|
}
|
|
|
|
connection.messageId = null;
|
|
|
|
window.setTimeout(function () {
|
|
(function poll(instance, raiseReconnect) {
|
|
$(instance).trigger(events.onSending);
|
|
|
|
var messageId = instance.messageId,
|
|
connect = (messageId === null),
|
|
reconnecting = !connect,
|
|
url = transportLogic.getUrl(instance, that.name, reconnecting, raiseReconnect),
|
|
reconnectTimeOut = null,
|
|
reconnectFired = false;
|
|
|
|
if (reconnecting === true && raiseReconnect === true) {
|
|
if (connection.state !== signalR.connectionState.reconnecting &&
|
|
changeState(connection,
|
|
signalR.connectionState.connected,
|
|
signalR.connectionState.reconnecting) === false) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
connection.log("Attempting to connect to '" + url + "' using longPolling.");
|
|
instance.pollXhr = $.ajax({
|
|
url: url,
|
|
global: false,
|
|
cache: false,
|
|
type: "GET",
|
|
dataType: connection.ajaxDataType,
|
|
success: function (data) {
|
|
var delay = 0,
|
|
timedOutReceived = false;
|
|
|
|
if (initialConnectFired === false) {
|
|
onSuccess();
|
|
initialConnectFired = true;
|
|
}
|
|
|
|
if (raiseReconnect === true) {
|
|
// Fire the reconnect event if it hasn't been fired as yet
|
|
if (reconnectFired === false) {
|
|
connection.log("Raising the reconnect event");
|
|
|
|
if (changeState(connection,
|
|
signalR.connectionState.reconnecting,
|
|
signalR.connectionState.connected) === true) {
|
|
|
|
$(instance).trigger(events.onReconnect);
|
|
reconnectFired = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
transportLogic.processMessages(instance, data);
|
|
if (data &&
|
|
data.TransportData &&
|
|
$.type(data.TransportData.LongPollDelay) === "number") {
|
|
delay = data.TransportData.LongPollDelay;
|
|
}
|
|
|
|
if (data && data.TimedOut) {
|
|
timedOutReceived = data.TimedOut;
|
|
}
|
|
|
|
if (data && data.Disconnect) {
|
|
return;
|
|
}
|
|
|
|
if (isDisconnecting(instance) === true) {
|
|
return;
|
|
}
|
|
|
|
if (delay > 0) {
|
|
window.setTimeout(function () {
|
|
poll(instance, timedOutReceived);
|
|
}, delay);
|
|
} else {
|
|
poll(instance, timedOutReceived);
|
|
}
|
|
},
|
|
|
|
error: function (data, textStatus) {
|
|
if (textStatus === "abort") {
|
|
connection.log("Aborted xhr requst.");
|
|
return;
|
|
}
|
|
|
|
connection.log("An error occurred using longPolling. Status = " + textStatus + ". " + data.responseText);
|
|
|
|
if (reconnectTimeOut) {
|
|
// If the request failed then we clear the timeout so that the
|
|
// reconnect event doesn't get fired
|
|
window.clearTimeout(reconnectTimeOut);
|
|
}
|
|
|
|
$(instance).trigger(events.onError, [data.responseText]);
|
|
|
|
window.setTimeout(function () {
|
|
if (isDisconnecting(instance) === false) {
|
|
poll(instance, true);
|
|
}
|
|
}, connection.reconnectDelay);
|
|
}
|
|
});
|
|
|
|
if (raiseReconnect === true) {
|
|
reconnectTimeOut = window.setTimeout(function () {
|
|
if (reconnectFired === false) {
|
|
if (changeState(connection,
|
|
signalR.connectionState.reconnecting,
|
|
signalR.connectionState.connected) === true) {
|
|
|
|
$(instance).trigger(events.onReconnect);
|
|
reconnectFired = true;
|
|
}
|
|
}
|
|
},
|
|
that.reconnectDelay);
|
|
}
|
|
|
|
}(connection));
|
|
|
|
// Now connected
|
|
// There's no good way know when the long poll has actually started so
|
|
// we assume it only takes around 150ms (max) to start the connection
|
|
window.setTimeout(function () {
|
|
if (initialConnectFired === false) {
|
|
onSuccess();
|
|
initialConnectFired = true;
|
|
}
|
|
}, 150);
|
|
|
|
}, 250); // Have to delay initial poll so Chrome doesn't show loader spinner in tab
|
|
},
|
|
|
|
send: function (connection, data) {
|
|
transportLogic.ajaxSend(connection, data);
|
|
},
|
|
|
|
stop: function (connection) {
|
|
/// <summary>Stops the long polling connection</summary>
|
|
/// <param name="connection" type="signalR">The SignalR connection to stop</param>
|
|
if (connection.pollXhr) {
|
|
connection.pollXhr.abort();
|
|
connection.pollXhr = null;
|
|
delete connection.pollXhr;
|
|
}
|
|
},
|
|
|
|
abort: function (connection, async) {
|
|
transportLogic.ajaxAbort(connection, async);
|
|
}
|
|
};
|
|
|
|
}(window.jQuery, window));
|
|
/* jquery.signalR.hubs.js */
|
|
/*global window:false */
|
|
/// <reference path="jquery.signalR.core.js" />
|
|
|
|
(function ($, window) {
|
|
"use strict";
|
|
|
|
// we use a global id for tracking callbacks so the server doesn't have to send extra info like hub name
|
|
var callbackId = 0,
|
|
callbacks = {},
|
|
eventNamespace = "proxy.";
|
|
|
|
// Array.prototype.map
|
|
if (!Array.prototype.hasOwnProperty("map")) {
|
|
Array.prototype.map = function (fun, thisp) {
|
|
var arr = this,
|
|
i,
|
|
length = arr.length,
|
|
result = [];
|
|
for (i = 0; i < length; i += 1) {
|
|
if (arr.hasOwnProperty(i)) {
|
|
result[i] = fun.call(thisp, arr[i], i, arr);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
function getArgValue(a) {
|
|
return $.isFunction(a) ? null : ($.type(a) === "undefined" ? null : a);
|
|
}
|
|
|
|
// hubProxy
|
|
function hubProxy(hubConnection, hubName) {
|
|
/// <summary>
|
|
/// Creates a new proxy object for the given hub connection that can be used to invoke
|
|
/// methods on server hubs and handle client method invocation requests from the server.
|
|
/// </summary>
|
|
return new hubProxy.fn.init(hubConnection, hubName);
|
|
}
|
|
|
|
hubProxy.fn = hubProxy.prototype = {
|
|
init: function (connection, hubName) {
|
|
this.state = {};
|
|
this.connection = connection;
|
|
this.hubName = hubName;
|
|
this.subscribed = false;
|
|
},
|
|
|
|
on: function (eventName, callback) {
|
|
/// <summary>Wires up a callback to be invoked when a invocation request is received from the server hub.</summary>
|
|
/// <param name="eventName" type="String">The name of the hub event to register the callback for.</param>
|
|
/// <param name="callback" type="Function">The callback to be invoked.</param>
|
|
var self = this;
|
|
|
|
// Normalize the event name to lowercase
|
|
eventName = eventName.toLowerCase();
|
|
|
|
$(self).bind(eventNamespace + eventName, function (e, data) {
|
|
callback.apply(self, data);
|
|
});
|
|
self.subscribed = true;
|
|
return self;
|
|
},
|
|
|
|
invoke: function (methodName) {
|
|
/// <summary>Invokes a server hub method with the given arguments.</summary>
|
|
/// <param name="methodName" type="String">The name of the server hub method.</param>
|
|
|
|
var self = this,
|
|
args = $.makeArray(arguments).slice(1),
|
|
userCallback = args[args.length - 1], // last argument
|
|
methodArgs = $.type(userCallback) === "function" ? args.slice(0, args.length - 1) /* all but last */ : args,
|
|
argValues = methodArgs.map(getArgValue),
|
|
data = { hub: self.hubName, method: methodName, args: argValues, state: self.state, id: callbackId },
|
|
d = $.Deferred(),
|
|
callback = function (result) {
|
|
// Update the hub state
|
|
$.extend(this.state, result.State);
|
|
|
|
if (result.Error) {
|
|
// Server hub method threw an exception, log it & reject the deferred
|
|
if (result.StackTrace) {
|
|
self.connection.log(result.Error + "\n" + result.StackTrace);
|
|
}
|
|
d.rejectWith(self, [result.Error]);
|
|
} else {
|
|
// Server invocation succeeded, invoke any user callback & resolve the deferred
|
|
if ($.type(userCallback) === "function") {
|
|
userCallback.call(self, result.Result);
|
|
}
|
|
d.resolveWith(self, [result.Result]);
|
|
}
|
|
};
|
|
|
|
callbacks[callbackId.toString()] = { scope: self, method: callback };
|
|
callbackId += 1;
|
|
self.connection.send(window.JSON.stringify(data));
|
|
|
|
return d.promise();
|
|
}
|
|
};
|
|
|
|
hubProxy.fn.init.prototype = hubProxy.fn;
|
|
|
|
|
|
// hubConnection
|
|
function hubConnection(url, options) {
|
|
/// <summary>Creates a new hub connection.</summary>
|
|
/// <param name="url" type="String">[Optional] The hub route url, defaults to "/signalr".</param>
|
|
/// <param name="options" type="Object">[Optional] Settings to use when creating the hubConnection.</param>
|
|
var settings = {
|
|
qs: null,
|
|
logging: false,
|
|
useDefaultPath : true
|
|
};
|
|
|
|
$.extend(settings, options);
|
|
|
|
if (!url || settings.useDefaultPath) {
|
|
url = (url || "") + "/signalr";
|
|
}
|
|
return new hubConnection.fn.init(url, settings);
|
|
}
|
|
|
|
hubConnection.fn = hubConnection.prototype = $.connection();
|
|
|
|
hubConnection.fn.init = function (url, options) {
|
|
var settings = {
|
|
qs: null,
|
|
logging: false,
|
|
useDefaultPath: true
|
|
},
|
|
connection = this;
|
|
|
|
$.extend(settings, options);
|
|
|
|
// Call the base constructor
|
|
$.signalR.fn.init.call(connection, url, settings.qs, settings.logging);
|
|
|
|
// Object to store hub proxies for this connection
|
|
connection.proxies = {};
|
|
|
|
// Wire up the sending handler
|
|
connection.sending(function () {
|
|
// Set the connection's data object with all the hub proxies with active subscriptions.
|
|
// These proxies will receive notifications from the server.
|
|
var subscribedHubs = [];
|
|
|
|
$.each(this.proxies, function (key) {
|
|
if (this.subscribed) {
|
|
subscribedHubs.push({ name: key });
|
|
}
|
|
});
|
|
|
|
this.data = window.JSON.stringify(subscribedHubs);
|
|
});
|
|
|
|
// Wire up the received handler
|
|
connection.received(function (data) {
|
|
var proxy, dataCallbackId, callback, hubName, eventName;
|
|
if (!data) {
|
|
return;
|
|
}
|
|
|
|
if (typeof (data.Id) !== "undefined") {
|
|
// We received the return value from a server method invocation, look up callback by id and call it
|
|
dataCallbackId = data.Id.toString();
|
|
callback = callbacks[dataCallbackId];
|
|
if (callback) {
|
|
// Delete the callback from the proxy
|
|
callbacks[dataCallbackId] = null;
|
|
delete callbacks[dataCallbackId];
|
|
|
|
// Invoke the callback
|
|
callback.method.call(callback.scope, data);
|
|
}
|
|
} else {
|
|
// We received a client invocation request, i.e. broadcast from server hub
|
|
connection.log("Triggering client hub event '" + data.Method + "' on hub '" + data.Hub + "'.");
|
|
|
|
// Normalize the names to lowercase
|
|
hubName = data.Hub.toLowerCase();
|
|
eventName = data.Method.toLowerCase();
|
|
|
|
// Trigger the local invocation event
|
|
proxy = this.proxies[hubName];
|
|
|
|
// Update the hub state
|
|
$.extend(proxy.state, data.State);
|
|
$(proxy).trigger(eventNamespace + eventName, [data.Args]);
|
|
}
|
|
});
|
|
};
|
|
|
|
hubConnection.fn.createProxy = function (hubName) {
|
|
/// <summary>
|
|
/// Creates a new proxy object for the given hub connection that can be used to invoke
|
|
/// methods on server hubs and handle client method invocation requests from the server.
|
|
/// </summary>
|
|
/// <param name="hubName" type="String">
|
|
/// The name of the hub on the server to create the proxy for.
|
|
/// </param>
|
|
|
|
// Normalize the name to lowercase
|
|
hubName = hubName.toLowerCase();
|
|
|
|
var proxy = this.proxies[hubName];
|
|
if (!proxy) {
|
|
proxy = hubProxy(this, hubName);
|
|
this.proxies[hubName] = proxy;
|
|
}
|
|
return proxy;
|
|
};
|
|
|
|
hubConnection.fn.init.prototype = hubConnection.fn;
|
|
|
|
$.hubConnection = hubConnection;
|
|
|
|
} (window.jQuery, window));
|