Second

Second.js

var uuid = require( 'node-uuid' ),
    engines = require( './engines.js' ),
    util = require( './util.js' );

/**
 * This is what the code must do:
 *   - Connect to the websocket.
 *   - Create a channel which name is a generated UUID.
 *   - Listen on "send key" event from the websocket to get
 *   a keyCode.
 *   - Inject some code to run the next/previous command
 */

var socket = io.connect( 'http://remoteprez.margaine.com:8080/' );

var channel = uuid.v4(),
    engine = engines.guess();

function MapEm(){
   return { top:arguments[0],
            bottom:arguments[1],
            left:arguments[2],
            right:arguments[3]
   };
}

var mapping = {
                'impress.js': MapEm('impress().prev()','impress().next()','impress().prev()','impress().next()'),\
                'reveal.js': MapEm('Reveal.navigateUp()','Reveal.navigateDown()','Reveal.navigateLeft()','Reveal.navigateRight()'),
                'html5slides':MapEm('prevSlide()','nextSlide()','prevSlide()','nextSlide()'),
                'csss': MapEm('slideshow.previous()','slideshow.next()','slideshow.previous()','slideshow.next()');
            };

if ( !engine ) {
    alert( "You're not on a supported presentation page. Sorry." );
}
else {
    socket.on( 'connect', function() {
        // Emit an event to create the channel
        socket.emit( 'create channel', channel );

        // Display the link/qrcode
        require( './html.js' )( channel, engine );

        // Listen on the "send key" event
        socket.on( 'send direction', function( engine, direction ) {
            // Mapping object
           

            // Just inject the right function
            util.injectCode( mapping[ engine ][ direction ] );
        });
    });
}