Created
April 4, 2013 15:26
-
-
Save jfarcand/5311355 to your computer and use it in GitHub Desktop.
atmosphere.js with Node.js
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
$(function () { | |
"use strict"; | |
var header = $('#header'); | |
var content = $('#content'); | |
var input = $('#input'); | |
var status = $('#status'); | |
var myName = false; | |
var author = null; | |
var logged = false; | |
var socket = $.atmosphere; | |
var subSocket; | |
var transport = 'websocket'; | |
// We are now ready to cut the request | |
var request = { url: document.location.protocol + "//" + document.location.host + '/chat', | |
contentType: "application/json", | |
logLevel: 'debug', | |
transport: transport, | |
enableProtocol: false, | |
fallbackTransport: 'long-polling'}; | |
request.onOpen = function (response) { | |
content.html($('<p>', { text: 'Atmosphere connected using ' + response.transport })); | |
input.removeAttr('disabled').focus(); | |
status.text('Choose name:'); | |
transport = response.transport; | |
}; | |
<!-- For demonstration of how you can customize the fallbackTransport using the onTransportFailure function --> | |
request.onTransportFailure = function (errorMsg, request) { | |
jQuery.atmosphere.info(errorMsg); | |
if (window.EventSource) { | |
request.fallbackTransport = "sse"; | |
} | |
header.html($('<h3>', { text: 'Atmosphere Chat. Default transport is WebSocket, fallback is ' + request.fallbackTransport })); | |
}; | |
request.onMessage = function (response) { | |
var message = response.responseBody; | |
try { | |
var json = jQuery.parseJSON(message); | |
} catch (e) { | |
console.log('This doesn\'t look like a valid JSON: ', message.data); | |
return; | |
} | |
if (!logged && myName) { | |
logged = true; | |
status.text(myName + ': ').css('color', 'blue'); | |
input.removeAttr('disabled').focus(); | |
} else { | |
input.removeAttr('disabled'); | |
var me = json.author == author; | |
var date = typeof(json.time) == 'string' ? parseInt(json.time) : json.time; | |
addMessage(json.author, json.message, me ? 'blue' : 'black', new Date(date)); | |
} | |
}; | |
request.onClose = function (response) { | |
logged = false; | |
}; | |
request.onError = function (response) { | |
content.html($('<p>', { text: 'Sorry, but there\'s some problem with your ' | |
+ 'socket or the server is down' })); | |
}; | |
subSocket = socket.subscribe(request); | |
input.keydown(function (e) { | |
if (e.keyCode === 13) { | |
var msg = $(this).val(); | |
// First message is always the author's name | |
if (author == null) { | |
author = msg; | |
} | |
subSocket.push(jQuery.stringifyJSON({ author: author, message: msg })); | |
$(this).val(''); | |
input.attr('disabled', 'disabled'); | |
if (myName === false) { | |
myName = msg; | |
} | |
} | |
}); | |
function addMessage(author, message, color, datetime) { | |
content.append('<p><span style="color:' + color + '">' + author + '</span> @ ' + +(datetime.getHours() < 10 ? '0' + datetime.getHours() : datetime.getHours()) + ':' | |
+ (datetime.getMinutes() < 10 ? '0' + datetime.getMinutes() : datetime.getMinutes()) | |
+ ': ' + message + '</p>'); | |
} | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment