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This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,87 @@ <!doctype> <html> <head> <title>hi</title> <style> body, html { background: #aaa; font-family: monospace; } .client { position: absolute; width: 20px; height: 20px; border-radius: 50%; } </style> <script src="/socket.io/socket.io.js"></script> <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> <script> var Main = function() { this.init_network = function() { this.socket = io(); this.socket.on("newmessage", function(msg){ $('body').append(msg).append('<br />'); }); this.socket.on("cursor", function(msg){ var da_div = $('.'+msg.color); if(da_div.length == 0) { da_div = $('<div>').addClass('client').addClass(msg.color).css('background', "#" + msg.color).appendTo('body'); } da_div.css({top: msg.y, left: msg.x}); }); } this.init_ui = function() { var socket = this.socket; $('form').submit(function(e){ e.preventDefault(); var msg = $('input[name="message"]').val(); socket.emit("newmessage", msg); $('input[name="message"]').val(''); $('body').append(msg).append('<br />'); }); $('body').on('mousemove', function(e) { var rect = this.getBoundingClientRect() var parentOffset = { top: rect.top + document.body.scrollTop, left: rect.left + document.body.scrollLeft } var x = e.pageX - parentOffset.left; var y = e.pageY - parentOffset.top; socket.emit('cursor', {x: x, y: y}); }); } return this; } $(document).ready(function(){ var main = new Main(); main.init_network(); main.init_ui(); }); </script> </head> <body> <form> <input type='text' name='message' /> <input type='submit' name='asd' value='Send' /> </form> </body> </html> This file contains hidden or 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 charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,49 @@ // using express to handle routing var express = require('express'); var app = express(); // http server for loading html pages var http = require('http').Server(app); // socket.io for handling websockets var io = require('socket.io')(http) var path = require('path'); app.get('/', function(req, res){ res.sendFile(path.join(__dirname, 'index.html')); }); // start node server http.listen(8888, function(){ console.log('listening on *:8888'); }); app.use(express.static(__dirname)); // event handler for when a client connects io.on('connection', function(socket){ // socket ID is a unique identifier for this particular connection // it assigns a new one for every new browser connection, even if it's the same user. console.log(socket.id, "connected"); // generate random hex color var color = ''+(Math.random()*0xFFFFFF<<0).toString(16); // cookies can be accessed as per usual from a socket connection console.log("cookies", socket.request.headers.cookie); // listen for messages from this client socket.on('newmessage', function(msg){ console.log(msg); // broadcast the received message to all the other clients socket.broadcast.emit("newmessage", msg); }); socket.on('cursor', function(msg){ msg.color = color; // broadcast the message to ALL clients (including the sender) io.sockets.emit("cursor", msg); }); socket.on('disconnect', function() { // remove this socket object from current online list console.log("disconnected", socket.id); }); });