From 976536d15ec7859313dcbce33c97fdfd69c00eb1 Mon Sep 17 00:00:00 2001
From: David Banham <david.banham@gmail.com>
Date: Sun, 5 Aug 2012 23:48:55 +1000
Subject: Added multiplexing server

---
 plugin/multiplex/client.js  |  12 +++++
 plugin/multiplex/index.js   |  62 +++++++++++++++++++++++++
 plugin/multiplex/master.js  |  32 +++++++++++++
 plugin/multiplex/notes.html | 109 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 215 insertions(+)
 create mode 100644 plugin/multiplex/client.js
 create mode 100644 plugin/multiplex/index.js
 create mode 100644 plugin/multiplex/master.js
 create mode 100644 plugin/multiplex/notes.html

(limited to 'plugin/multiplex')

diff --git a/plugin/multiplex/client.js b/plugin/multiplex/client.js
new file mode 100644
index 0000000..5e6b556
--- /dev/null
+++ b/plugin/multiplex/client.js
@@ -0,0 +1,12 @@
+(function() {
+	var socketId = multiplex.id;
+	var socket = io.connect(multiplex.url);
+
+	socket.on(multiplex.id, function(data) {
+		// ignore data from sockets that aren't ours
+		if (data.socketId !== socketId) { return; }
+		if( window.location.host === 'localhost:1947' ) return;
+
+		Reveal.navigateTo(data.indexh, data.indexv, false);
+	});
+}());
diff --git a/plugin/multiplex/index.js b/plugin/multiplex/index.js
new file mode 100644
index 0000000..7e3f872
--- /dev/null
+++ b/plugin/multiplex/index.js
@@ -0,0 +1,62 @@
+var express   = require('express');
+var fs        = require('fs');
+var io        = require('socket.io');
+var _         = require('underscore');
+var Mustache  = require('mustache');
+var crypto		= require('crypto');
+
+var app       = express.createServer();
+var staticDir = express.static;
+
+io            = io.listen(app);
+
+var opts = {
+	port :      1948,
+	baseDir :   __dirname + '/../../'
+};
+
+io.sockets.on('connection', function(socket) {
+	socket.on('slidechanged', function(slideData) {
+		console.log(slideData);
+		if (createHash(slideData.secret) === slideData.socketId) {
+			slideData.secret = null;
+			socket.broadcast.emit(slideData.socketId, slideData);
+		};
+	});
+});
+
+app.configure(function() {
+	[ 'css', 'js', 'plugin', 'lib' ].forEach(function(dir) {
+		app.use('/' + dir, staticDir(opts.baseDir + dir));
+	});
+});
+
+app.get("/", function(req, res) {
+	fs.createReadStream(opts.baseDir + '/index.html').pipe(res);
+});
+
+app.get("/token", function(req,res) {
+	var ts = new Date().getTime();
+	var rand = Math.floor(Math.random()*9999999);
+	var secret = ts.toString() + rand.toString();
+	res.send({secret: secret, socketId: createHash(secret)});
+});
+
+var createHash = function(secret) {
+	var cipher = crypto.createCipher('blowfish', secret);
+	return(cipher.final('hex'));
+};
+
+// Actually listen
+app.listen(opts.port || null);
+
+var brown = '\033[33m', 
+	green = '\033[32m', 
+	reset = '\033[0m';
+
+var slidesLocation = "http://localhost" + ( opts.port ? ( ':' + opts.port ) : '' );
+
+console.log( brown + "reveal.js - Speaker Notes" + reset );
+console.log( "1. Open the slides at " + green + slidesLocation + reset );
+console.log( "2. Click on the link your JS console to go to the notes page" );
+console.log( "3. Advance through your slides and your notes will advance automatically" );
diff --git a/plugin/multiplex/master.js b/plugin/multiplex/master.js
new file mode 100644
index 0000000..cf629d9
--- /dev/null
+++ b/plugin/multiplex/master.js
@@ -0,0 +1,32 @@
+(function() {
+	// don't emit events from inside the previews themselves
+	if ( window.location.search.match( /receiver/gi ) ) { return; }
+
+	var socket = io.connect(multiplex.url);
+	
+	Reveal.addEventListener( 'slidechanged', function( event ) {
+		var nextindexh;
+		var nextindexv;
+		var slideElement = event.currentSlide;
+
+		if (slideElement.nextElementSibling && slideElement.parentNode.nodeName == 'SECTION') {
+			nextindexh = event.indexh;
+			nextindexv = event.indexv + 1;
+		} else {
+			nextindexh = event.indexh + 1;
+			nextindexv = 0;
+		}
+
+		var notes = slideElement.querySelector('aside.notes');
+		var slideData = {
+			indexh : event.indexh,
+			indexv : event.indexv,
+			nextindexh : nextindexh,
+			nextindexv : nextindexv,
+			secret: multiplex.secret,
+			socketId : multiplex.id
+		};
+
+		socket.emit('slidechanged', slideData);
+	} );
+}());
diff --git a/plugin/multiplex/notes.html b/plugin/multiplex/notes.html
new file mode 100644
index 0000000..88924c0
--- /dev/null
+++ b/plugin/multiplex/notes.html
@@ -0,0 +1,109 @@
+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Notes</title>
+
+		<style>
+			body {
+				font-family: Helvetica;
+			}
+
+			#notes {
+				font-size: 24px;
+				width: 640px;
+				margin-top: 5px;
+			}
+
+			#wrap-current-slide {
+				width: 640px;
+				height: 512px;
+				float: left;
+				overflow: hidden;
+			}
+
+			#current-slide {
+				width: 1280px;
+				height: 1024px;
+				border: none;
+				-moz-transform: scale(0.5);
+				-moz-transform-origin: 0 0;
+				-o-transform: scale(0.5);
+				-o-transform-origin: 0 0;
+				-webkit-transform: scale(0.5);
+				-webkit-transform-origin: 0 0;
+			}
+
+			#wrap-next-slide {
+				width: 320px;
+				height: 256px;
+				float: left;
+				margin: 0 0 0 10px;
+				overflow: hidden;
+			}
+
+			#next-slide {
+				width: 1280px;
+				height: 1024px;
+				border: none;
+				-moz-transform: scale(0.25);
+				-moz-transform-origin: 0 0;
+				-o-transform: scale(0.25);
+				-o-transform-origin: 0 0;
+				-webkit-transform: scale(0.25);
+				-webkit-transform-origin: 0 0;
+			}
+
+			.slides {
+				position: relative;
+				margin-bottom: 10px;
+				border: 1px solid black;
+				border-radius: 2px;
+				background: rgb(28, 30, 32);
+			}
+
+			.slides span {
+				position: absolute;
+				top: 3px;
+				left: 3px;
+				font-weight: bold;
+				font-size: 14px;
+				color: rgba( 255, 255, 255, 0.9 );
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<div id="wrap-current-slide" class="slides">
+			<iframe src="/?receiver" width="1280" height="1024" id="current-slide"></iframe>
+		</div>
+
+		<div id="wrap-next-slide" class="slides">
+			<iframe src="/?receiver" width="640" height="512" id="next-slide"></iframe>
+			<span>UPCOMING:</span>
+		</div>
+		<div id="notes"></div>
+
+		<script src="/socket.io/socket.io.js"></script>
+
+		<script>
+		var socketId = '{{socketId}}';
+		var socket = io.connect(window.location.origin);
+		var notes = document.getElementById('notes');
+		var currentSlide = document.getElementById('current-slide');
+		var nextSlide = document.getElementById('next-slide');
+
+		socket.on('slidedata', function(data) {
+			// ignore data from sockets that aren't ours
+			if (data.socketId !== socketId) { return; }
+
+			notes.innerHTML = data.notes;
+			currentSlide.contentWindow.Reveal.navigateTo(data.indexh, data.indexv);
+			nextSlide.contentWindow.Reveal.navigateTo(data.nextindexh, data.nextindexv);
+		});
+		</script>
+
+	</body>
+</html>
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