chat

I have a simple chat client set up that allows users to login with a username and stores the messages they write in an sql database. Every 3 seconds, the database simply prints of all the rows. So it's basically a chat client. I'd like to keep a list of who's online. How can I do this? How can I sense when someone has closed the browser? Right now I'm pulling the username as $name = $_COOKIE["name"]; and if this value is empty, I know they left. But once they left, it's too late to know what their username was so I can't keep track of who exactly left. Ideas? I'm fairly new to php, javascript,

When ever user leaves chat page (Either by logging out or just by simple closing the browser window). Chat script instantly detects that user left and show offline sign. This process takes place in few seconds how this really works? I am an ASP.NET/c# developer apart from it I use JavaScripts and rarely PHP. Please don't exceed answer(s) to other languages. Just have your JavaScript chat code send a message to the server every 2 seconds using XMLHttpRequest. When you don't receive a message, that means that the user has closed the window. As promised, here are some classes used in implementing

I would like to know how to use Firebase's ServerValue.TIMESTAMP method, when I want to create a timestamp at the Firebase server, and then retrieve it to the local client. In Firebase guides, only javascript has a more detailed description of this case, but I'm having a hard time figureing how to translate this in to my Android appliction. Thanks in advance! Ossama Firebase.ServerValue.TIMESTAMP is set as a Map (containing {.sv: "timestamp"} ) which tells Firebase to populate that field with the server's time. When that data is read back, it is the actual unix time stamp which is a Long .

I have developed my web application by using Java EE framework EJB 3, at front using JSF. Now I plan to add chat tool to my web application. All online users can chat with each other. Can you please guide me which tool I should use to Integrate it with Java EE to develop my chat application? I also appreciate if you provide code or any link. 1- You have to install a pre developed Chat server. There is many available solutions I advice you to choose Ejabberd ( http://www.ejabberd.im/ ). It's a chat server implemented using Erlang and is considered as a highly scalable server. It's the same as

Iam working on node.js chat application, i've hosted the node.js on IIS in windows. my intention is to include the node.js in Asp.net mvc as explained by Jon Galloway for performing chatting( text, audio ,video ) in asp.net web application. my Installation details: iisnode.js - iisnode-full-iis7-v0.2.3-x86 node.js - node-v0.8.19-x86 express.js version - 3.1.0 socket.io version - 0.9.13 on windows 7 32 bit system with IIS 8.0 express I've successfully hosted the node.js on IIS, and run the samples But when i start coading socket.io i got stuck.. when i start connecting with client browser to

How to implement XMPP protocol in objective-C? I want to send & receive messages from Jabber server through XMPP. Thanks in advance. Make use of the XMPP Framework for Cocoa . Here's the Getting started using XMPPFramework on iOS . vikas ojha This is a good tutorial about setting up Jabber client and and will help you to use xmpp. http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-interface-setup/ 来源： https://stackoverflow.com/questions/6358244/how-to-implement-xmpp-protocol-in-objective-c

I want to make a chat application where the emoticons are necessary. I was trying to write my own TextBox to handle some unicode caracters and replace them with smiles and emoticons, but that was a hard work to do and I encountered many problems. Then I tried to make a custom font that will have emoticons in it but I found that a font is made in black and white and cannot be colored. I tried then to use different EditFields so when I find a Bitmap I draw it and start a different EditField but that didnt work for several lines and selection problems occured. The best way was to write my own