From 83b56d1270cdb179b64a1be51f8c1e7fe586c35e Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Mon, 1 Apr 2019 20:16:24 +0200
Subject: Added content

---
 plugin/notes-server/client.js  |  128 ++---
 plugin/notes-server/index.js   |   80 +--
 plugin/notes-server/notes.html | 1113 ++++++++++++++++++++--------------------
 3 files changed, 669 insertions(+), 652 deletions(-)

(limited to 'plugin/notes-server')

diff --git a/plugin/notes-server/client.js b/plugin/notes-server/client.js
index 00b277b..e893bb3 100644
--- a/plugin/notes-server/client.js
+++ b/plugin/notes-server/client.js
@@ -1,65 +1,67 @@
-(function() {
-
-	// don't emit events from inside the previews themselves
-	if( window.location.search.match( /receiver/gi ) ) { return; }
-
-	var socket = io.connect( window.location.origin ),
-		socketId = Math.random().toString().slice( 2 );
-
-	console.log( 'View slide notes at ' + window.location.origin + '/notes/' + socketId );
-
-	window.open( window.location.origin + '/notes/' + socketId, 'notes-' + socketId );
-
-	/**
-	 * Posts the current slide data to the notes window
-	 */
-	function post() {
-
-		var slideElement = Reveal.getCurrentSlide(),
-			notesElement = slideElement.querySelector( 'aside.notes' );
-
-		var messageData = {
-			notes: '',
-			markdown: false,
-			socketId: socketId,
-			state: Reveal.getState()
-		};
-
-		// Look for notes defined in a slide attribute
-		if( slideElement.hasAttribute( 'data-notes' ) ) {
-			messageData.notes = slideElement.getAttribute( 'data-notes' );
-		}
-
-		// Look for notes defined in an aside element
-		if( notesElement ) {
-			messageData.notes = notesElement.innerHTML;
-			messageData.markdown = typeof notesElement.getAttribute( 'data-markdown' ) === 'string';
-		}
-
-		socket.emit( 'statechanged', messageData );
-
-	}
-
-	// When a new notes window connects, post our current state
-	socket.on( 'new-subscriber', function( data ) {
-		post();
-	} );
-
-	// When the state changes from inside of the speaker view
-	socket.on( 'statechanged-speaker', function( data ) {
-		Reveal.setState( data.state );
-	} );
-
-	// Monitor events that trigger a change in state
-	Reveal.addEventListener( 'slidechanged', post );
-	Reveal.addEventListener( 'fragmentshown', post );
-	Reveal.addEventListener( 'fragmenthidden', post );
-	Reveal.addEventListener( 'overviewhidden', post );
-	Reveal.addEventListener( 'overviewshown', post );
-	Reveal.addEventListener( 'paused', post );
-	Reveal.addEventListener( 'resumed', post );
-
-	// Post the initial state
-	post();
+(function () {
+
+  // don't emit events from inside the previews themselves
+  if (window.location.search.match(/receiver/gi)) {
+    return;
+  }
+
+  var socket = io.connect(window.location.origin),
+    socketId = Math.random().toString().slice(2);
+
+  console.log('View slide notes at ' + window.location.origin + '/notes/' + socketId);
+
+  window.open(window.location.origin + '/notes/' + socketId, 'notes-' + socketId);
+
+  /**
+   * Posts the current slide data to the notes window
+   */
+  function post() {
+
+    var slideElement = Reveal.getCurrentSlide(),
+      notesElement = slideElement.querySelector('aside.notes');
+
+    var messageData = {
+      notes: '',
+      markdown: false,
+      socketId: socketId,
+      state: Reveal.getState()
+    };
+
+    // Look for notes defined in a slide attribute
+    if (slideElement.hasAttribute('data-notes')) {
+      messageData.notes = slideElement.getAttribute('data-notes');
+    }
+
+    // Look for notes defined in an aside element
+    if (notesElement) {
+      messageData.notes = notesElement.innerHTML;
+      messageData.markdown = typeof notesElement.getAttribute('data-markdown') === 'string';
+    }
+
+    socket.emit('statechanged', messageData);
+
+  }
+
+  // When a new notes window connects, post our current state
+  socket.on('new-subscriber', function (data) {
+    post();
+  });
+
+  // When the state changes from inside of the speaker view
+  socket.on('statechanged-speaker', function (data) {
+    Reveal.setState(data.state);
+  });
+
+  // Monitor events that trigger a change in state
+  Reveal.addEventListener('slidechanged', post);
+  Reveal.addEventListener('fragmentshown', post);
+  Reveal.addEventListener('fragmenthidden', post);
+  Reveal.addEventListener('overviewhidden', post);
+  Reveal.addEventListener('overviewshown', post);
+  Reveal.addEventListener('paused', post);
+  Reveal.addEventListener('resumed', post);
+
+  // Post the initial state
+  post();
 
 }());
diff --git a/plugin/notes-server/index.js b/plugin/notes-server/index.js
index b95f071..571df3d 100644
--- a/plugin/notes-server/index.js
+++ b/plugin/notes-server/index.js
@@ -1,69 +1,69 @@
-var http      = require('http');
-var express   = require('express');
-var fs        = require('fs');
-var io        = require('socket.io');
-var Mustache  = require('mustache');
+var http = require('http');
+var express = require('express');
+var fs = require('fs');
+var io = require('socket.io');
+var Mustache = require('mustache');
 
-var app       = express();
+var app = express();
 var staticDir = express.static;
-var server    = http.createServer(app);
+var server = http.createServer(app);
 
 io = io(server);
 
 var opts = {
-	port :      1947,
-	baseDir :   __dirname + '/../../'
+  port: 1947,
+  baseDir: __dirname + '/../../'
 };
 
-io.on( 'connection', function( socket ) {
+io.on('connection', function (socket) {
 
-	socket.on( 'new-subscriber', function( data ) {
-		socket.broadcast.emit( 'new-subscriber', data );
-	});
+  socket.on('new-subscriber', function (data) {
+    socket.broadcast.emit('new-subscriber', data);
+  });
 
-	socket.on( 'statechanged', function( data ) {
-		delete data.state.overview;
-		socket.broadcast.emit( 'statechanged', data );
-	});
+  socket.on('statechanged', function (data) {
+    delete data.state.overview;
+    socket.broadcast.emit('statechanged', data);
+  });
 
-	socket.on( 'statechanged-speaker', function( data ) {
-		delete data.state.overview;
-		socket.broadcast.emit( 'statechanged-speaker', data );
-	});
+  socket.on('statechanged-speaker', function (data) {
+    delete data.state.overview;
+    socket.broadcast.emit('statechanged-speaker', data);
+  });
 
 });
 
-[ 'css', 'js', 'images', 'plugin', 'lib' ].forEach( function( dir ) {
-	app.use( '/' + dir, staticDir( opts.baseDir + dir ) );
+['css', 'js', 'images', 'plugin', 'lib'].forEach(function (dir) {
+  app.use('/' + dir, staticDir(opts.baseDir + dir));
 });
 
-app.get('/', function( req, res ) {
+app.get('/', function (req, res) {
 
-	res.writeHead( 200, { 'Content-Type': 'text/html' } );
-	fs.createReadStream( opts.baseDir + '/index.html' ).pipe( res );
+  res.writeHead(200, {'Content-Type': 'text/html'});
+  fs.createReadStream(opts.baseDir + '/index.html').pipe(res);
 
 });
 
-app.get( '/notes/:socketId', function( req, res ) {
+app.get('/notes/:socketId', function (req, res) {
 
-	fs.readFile( opts.baseDir + 'plugin/notes-server/notes.html', function( err, data ) {
-		res.send( Mustache.to_html( data.toString(), {
-			socketId : req.params.socketId
-		}));
-	});
+  fs.readFile(opts.baseDir + 'plugin/notes-server/notes.html', function (err, data) {
+    res.send(Mustache.to_html(data.toString(), {
+      socketId: req.params.socketId
+    }));
+  });
 
 });
 
 // Actually listen
-server.listen( opts.port || null );
+server.listen(opts.port || null);
 
 var brown = '\033[33m',
-	green = '\033[32m',
-	reset = '\033[0m';
+  green = '\033[32m',
+  reset = '\033[0m';
 
-var slidesLocation = 'http://localhost' + ( opts.port ? ( ':' + opts.port ) : '' );
+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 in your JS console to go to the notes page' );
-console.log( '3. Advance through your slides and your notes will advance automatically' );
+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 in 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/notes-server/notes.html b/plugin/notes-server/notes.html
index ab8c5b1..7454b0c 100644
--- a/plugin/notes-server/notes.html
+++ b/plugin/notes-server/notes.html
@@ -1,585 +1,600 @@
 <!doctype html>
 <html lang="en">
-	<head>
-		<meta charset="utf-8">
-
-		<title>reveal.js - Slide Notes</title>
-
-		<style>
-			body {
-				font-family: Helvetica;
-				font-size: 18px;
-			}
-
-			#current-slide,
-			#upcoming-slide,
-			#speaker-controls {
-				padding: 6px;
-				box-sizing: border-box;
-				-moz-box-sizing: border-box;
-			}
-
-			#current-slide iframe,
-			#upcoming-slide iframe {
-				width: 100%;
-				height: 100%;
-				border: 1px solid #ddd;
-			}
-
-			#current-slide .label,
-			#upcoming-slide .label {
-				position: absolute;
-				top: 10px;
-				left: 10px;
-				z-index: 2;
-			}
-
-			.overlay-element {
-				height: 34px;
-				line-height: 34px;
-				padding: 0 10px;
-				text-shadow: none;
-				background: rgba( 220, 220, 220, 0.8 );
-				color: #222;
-				font-size: 14px;
-			}
-
-			.overlay-element.interactive:hover {
-				background: rgba( 220, 220, 220, 1 );
-			}
-
-			#current-slide {
-				position: absolute;
-				width: 60%;
-				height: 100%;
-				top: 0;
-				left: 0;
-				padding-right: 0;
-			}
-
-			#upcoming-slide {
-				position: absolute;
-				width: 40%;
-				height: 40%;
-				right: 0;
-				top: 0;
-			}
-
-			/* Speaker controls */
-			#speaker-controls {
-				position: absolute;
-				top: 40%;
-				right: 0;
-				width: 40%;
-				height: 60%;
-				overflow: auto;
-				font-size: 18px;
-			}
-
-				.speaker-controls-time.hidden,
-				.speaker-controls-notes.hidden {
-					display: none;
-				}
-
-				.speaker-controls-time .label,
-				.speaker-controls-notes .label {
-					text-transform: uppercase;
-					font-weight: normal;
-					font-size: 0.66em;
-					color: #666;
-					margin: 0;
-				}
-
-				.speaker-controls-time {
-					border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
-					margin-bottom: 10px;
-					padding: 10px 16px;
-					padding-bottom: 20px;
-					cursor: pointer;
-				}
-
-				.speaker-controls-time .reset-button {
-					opacity: 0;
-					float: right;
-					color: #666;
-					text-decoration: none;
-				}
-				.speaker-controls-time:hover .reset-button {
-					opacity: 1;
-				}
-
-				.speaker-controls-time .timer,
-				.speaker-controls-time .clock {
-					width: 50%;
-					font-size: 1.9em;
-				}
-
-				.speaker-controls-time .timer {
-					float: left;
-				}
-
-				.speaker-controls-time .clock {
-					float: right;
-					text-align: right;
-				}
-
-				.speaker-controls-time span.mute {
-					color: #bbb;
-				}
-
-				.speaker-controls-notes {
-					padding: 10px 16px;
-				}
-
-				.speaker-controls-notes .value {
-					margin-top: 5px;
-					line-height: 1.4;
-					font-size: 1.2em;
-				}
-
-			/* Layout selector */
-			#speaker-layout {
-				position: absolute;
-				top: 10px;
-				right: 10px;
-				color: #222;
-				z-index: 10;
-			}
-				#speaker-layout select {
-					position: absolute;
-					width: 100%;
-					height: 100%;
-					top: 0;
-					left: 0;
-					border: 0;
-					box-shadow: 0;
-					cursor: pointer;
-					opacity: 0;
-
-					font-size: 1em;
-					background-color: transparent;
-
-					-moz-appearance: none;
-					-webkit-appearance: none;
-					-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-				}
-
-				#speaker-layout select:focus {
-					outline: none;
-					box-shadow: none;
-				}
-
-			.clear {
-				clear: both;
-			}
-
-			/* Speaker layout: Wide */
-			body[data-speaker-layout="wide"] #current-slide,
-			body[data-speaker-layout="wide"] #upcoming-slide {
-				width: 50%;
-				height: 45%;
-				padding: 6px;
-			}
-
-			body[data-speaker-layout="wide"] #current-slide {
-				top: 0;
-				left: 0;
-			}
-
-			body[data-speaker-layout="wide"] #upcoming-slide {
-				top: 0;
-				left: 50%;
-			}
-
-			body[data-speaker-layout="wide"] #speaker-controls {
-				top: 45%;
-				left: 0;
-				width: 100%;
-				height: 50%;
-				font-size: 1.25em;
-			}
-
-			/* Speaker layout: Tall */
-			body[data-speaker-layout="tall"] #current-slide,
-			body[data-speaker-layout="tall"] #upcoming-slide {
-				width: 45%;
-				height: 50%;
-				padding: 6px;
-			}
-
-			body[data-speaker-layout="tall"] #current-slide {
-				top: 0;
-				left: 0;
-			}
-
-			body[data-speaker-layout="tall"] #upcoming-slide {
-				top: 50%;
-				left: 0;
-			}
-
-			body[data-speaker-layout="tall"] #speaker-controls {
-				padding-top: 40px;
-				top: 0;
-				left: 45%;
-				width: 55%;
-				height: 100%;
-				font-size: 1.25em;
-			}
-
-			/* Speaker layout: Notes only */
-			body[data-speaker-layout="notes-only"] #current-slide,
-			body[data-speaker-layout="notes-only"] #upcoming-slide {
-				display: none;
-			}
-
-			body[data-speaker-layout="notes-only"] #speaker-controls {
-				padding-top: 40px;
-				top: 0;
-				left: 0;
-				width: 100%;
-				height: 100%;
-				font-size: 1.25em;
-			}
-
-		</style>
-	</head>
-
-	<body>
-
-		<div id="current-slide"></div>
-		<div id="upcoming-slide"><span class="overlay-element label">Upcoming</span></div>
-		<div id="speaker-controls">
-			<div class="speaker-controls-time">
-				<h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
-				<div class="clock">
-					<span class="clock-value">0:00 AM</span>
-				</div>
-				<div class="timer">
-					<span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
-				</div>
-				<div class="clear"></div>
-			</div>
-
-			<div class="speaker-controls-notes hidden">
-				<h4 class="label">Notes</h4>
-				<div class="value"></div>
-			</div>
-		</div>
-		<div id="speaker-layout" class="overlay-element interactive">
-			<span class="speaker-layout-label"></span>
-			<select class="speaker-layout-dropdown"></select>
-		</div>
-
-		<script src="/socket.io/socket.io.js"></script>
-		<script src="/plugin/markdown/marked.js"></script>
-
-		<script>
-		(function() {
-
-			var notes,
-				notesValue,
-				currentState,
-				currentSlide,
-				upcomingSlide,
-				layoutLabel,
-				layoutDropdown,
-				connected = false;
-
-			var socket = io.connect( window.location.origin ),
-				socketId = '{{socketId}}';
-
-			var SPEAKER_LAYOUTS = {
-				'default': 'Default',
-				'wide': 'Wide',
-				'tall': 'Tall',
-				'notes-only': 'Notes only'
-			};
-
-			socket.on( 'statechanged', function( data ) {
-
-				// ignore data from sockets that aren't ours
-				if( data.socketId !== socketId ) { return; }
-
-				if( connected === false ) {
-					connected = true;
-
-					setupKeyboard();
-					setupNotes();
-					setupTimer();
-
-				}
-
-				handleStateMessage( data );
-
-			} );
-
-			setupLayout();
-
-			// Load our presentation iframes
-			setupIframes();
-
-			// Once the iframes have loaded, emit a signal saying there's
-			// a new subscriber which will trigger a 'statechanged'
-			// message to be sent back
-			window.addEventListener( 'message', function( event ) {
-
-				var data = JSON.parse( event.data );
-
-				if( data && data.namespace === 'reveal' ) {
-					if( /ready/.test( data.eventName ) ) {
-						socket.emit( 'new-subscriber', { socketId: socketId } );
-					}
-				}
-
-				// Messages sent by reveal.js inside of the current slide preview
-				if( data && data.namespace === 'reveal' ) {
-					if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
-						socket.emit( 'statechanged-speaker', { state: data.state } );
-					}
-				}
-
-			} );
-
-			/**
-			 * Called when the main window sends an updated state.
-			 */
-			function handleStateMessage( data ) {
-
-				// Store the most recently set state to avoid circular loops
-				// applying the same state
-				currentState = JSON.stringify( data.state );
-
-				// No need for updating the notes in case of fragment changes
-				if ( data.notes ) {
-					notes.classList.remove( 'hidden' );
-					if( data.markdown ) {
-						notesValue.innerHTML = marked( data.notes );
-					}
-					else {
-						notesValue.innerHTML = data.notes;
-					}
-				}
-				else {
-					notes.classList.add( 'hidden' );
-				}
-
-				// Update the note slides
-				currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
-				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
-				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
-
-			}
-
-			// Limit to max one state update per X ms
-			handleStateMessage = debounce( handleStateMessage, 200 );
-
-			/**
-			 * Forward keyboard events to the current slide window.
-			 * This enables keyboard events to work even if focus
-			 * isn't set on the current slide iframe.
-			 */
-			function setupKeyboard() {
-
-				document.addEventListener( 'keydown', function( event ) {
-					currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
-				} );
-
-			}
-
-			/**
-			 * Creates the preview iframes.
-			 */
-			function setupIframes() {
-
-				var params = [
-					'receiver',
-					'progress=false',
-					'history=false',
-					'transition=none',
-					'backgroundTransition=none'
-				].join( '&' );
-
-				var currentURL = '/?' + params + '&postMessageEvents=true';
-				var upcomingURL = '/?' + params + '&controls=false';
-
-				currentSlide = document.createElement( 'iframe' );
-				currentSlide.setAttribute( 'width', 1280 );
-				currentSlide.setAttribute( 'height', 1024 );
-				currentSlide.setAttribute( 'src', currentURL );
-				document.querySelector( '#current-slide' ).appendChild( currentSlide );
-
-				upcomingSlide = document.createElement( 'iframe' );
-				upcomingSlide.setAttribute( 'width', 640 );
-				upcomingSlide.setAttribute( 'height', 512 );
-				upcomingSlide.setAttribute( 'src', upcomingURL );
-				document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
-
-			}
-
-			/**
-			 * Setup the notes UI.
-			 */
-			function setupNotes() {
-
-				notes = document.querySelector( '.speaker-controls-notes' );
-				notesValue = document.querySelector( '.speaker-controls-notes .value' );
-
-			}
-
-			/**
-			 * Create the timer and clock and start updating them
-			 * at an interval.
-			 */
-			function setupTimer() {
-
-				var start = new Date(),
-					timeEl = document.querySelector( '.speaker-controls-time' ),
-					clockEl = timeEl.querySelector( '.clock-value' ),
-					hoursEl = timeEl.querySelector( '.hours-value' ),
-					minutesEl = timeEl.querySelector( '.minutes-value' ),
-					secondsEl = timeEl.querySelector( '.seconds-value' );
-
-				function _updateTimer() {
-
-					var diff, hours, minutes, seconds,
-						now = new Date();
-
-					diff = now.getTime() - start.getTime();
-					hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
-					minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
-					seconds = Math.floor( ( diff / 1000 ) % 60 );
-
-					clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
-					hoursEl.innerHTML = zeroPadInteger( hours );
-					hoursEl.className = hours > 0 ? '' : 'mute';
-					minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
-					minutesEl.className = minutes > 0 ? '' : 'mute';
-					secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
+<head>
+    <meta charset="utf-8">
+
+    <title>reveal.js - Slide Notes</title>
+
+    <style>
+        body {
+            font-family: Helvetica;
+            font-size: 18px;
+        }
+
+        #current-slide,
+        #upcoming-slide,
+        #speaker-controls {
+            padding: 6px;
+            box-sizing: border-box;
+            -moz-box-sizing: border-box;
+        }
+
+        #current-slide iframe,
+        #upcoming-slide iframe {
+            width: 100%;
+            height: 100%;
+            border: 1px solid #ddd;
+        }
+
+        #current-slide .label,
+        #upcoming-slide .label {
+            position: absolute;
+            top: 10px;
+            left: 10px;
+            z-index: 2;
+        }
+
+        .overlay-element {
+            height: 34px;
+            line-height: 34px;
+            padding: 0 10px;
+            text-shadow: none;
+            background: rgba(220, 220, 220, 0.8);
+            color: #222;
+            font-size: 14px;
+        }
+
+        .overlay-element.interactive:hover {
+            background: rgba(220, 220, 220, 1);
+        }
+
+        #current-slide {
+            position: absolute;
+            width: 60%;
+            height: 100%;
+            top: 0;
+            left: 0;
+            padding-right: 0;
+        }
+
+        #upcoming-slide {
+            position: absolute;
+            width: 40%;
+            height: 40%;
+            right: 0;
+            top: 0;
+        }
+
+        /* Speaker controls */
+        #speaker-controls {
+            position: absolute;
+            top: 40%;
+            right: 0;
+            width: 40%;
+            height: 60%;
+            overflow: auto;
+            font-size: 18px;
+        }
+
+        .speaker-controls-time.hidden,
+        .speaker-controls-notes.hidden {
+            display: none;
+        }
+
+        .speaker-controls-time .label,
+        .speaker-controls-notes .label {
+            text-transform: uppercase;
+            font-weight: normal;
+            font-size: 0.66em;
+            color: #666;
+            margin: 0;
+        }
+
+        .speaker-controls-time {
+            border-bottom: 1px solid rgba(200, 200, 200, 0.5);
+            margin-bottom: 10px;
+            padding: 10px 16px;
+            padding-bottom: 20px;
+            cursor: pointer;
+        }
+
+        .speaker-controls-time .reset-button {
+            opacity: 0;
+            float: right;
+            color: #666;
+            text-decoration: none;
+        }
+
+        .speaker-controls-time:hover .reset-button {
+            opacity: 1;
+        }
+
+        .speaker-controls-time .timer,
+        .speaker-controls-time .clock {
+            width: 50%;
+            font-size: 1.9em;
+        }
+
+        .speaker-controls-time .timer {
+            float: left;
+        }
+
+        .speaker-controls-time .clock {
+            float: right;
+            text-align: right;
+        }
+
+        .speaker-controls-time span.mute {
+            color: #bbb;
+        }
+
+        .speaker-controls-notes {
+            padding: 10px 16px;
+        }
+
+        .speaker-controls-notes .value {
+            margin-top: 5px;
+            line-height: 1.4;
+            font-size: 1.2em;
+        }
+
+        /* Layout selector */
+        #speaker-layout {
+            position: absolute;
+            top: 10px;
+            right: 10px;
+            color: #222;
+            z-index: 10;
+        }
+
+        #speaker-layout select {
+            position: absolute;
+            width: 100%;
+            height: 100%;
+            top: 0;
+            left: 0;
+            border: 0;
+            box-shadow: 0;
+            cursor: pointer;
+            opacity: 0;
+
+            font-size: 1em;
+            background-color: transparent;
+
+            -moz-appearance: none;
+            -webkit-appearance: none;
+            -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+        }
+
+        #speaker-layout select:focus {
+            outline: none;
+            box-shadow: none;
+        }
+
+        .clear {
+            clear: both;
+        }
+
+        /* Speaker layout: Wide */
+        body[data-speaker-layout="wide"] #current-slide,
+        body[data-speaker-layout="wide"] #upcoming-slide {
+            width: 50%;
+            height: 45%;
+            padding: 6px;
+        }
+
+        body[data-speaker-layout="wide"] #current-slide {
+            top: 0;
+            left: 0;
+        }
+
+        body[data-speaker-layout="wide"] #upcoming-slide {
+            top: 0;
+            left: 50%;
+        }
+
+        body[data-speaker-layout="wide"] #speaker-controls {
+            top: 45%;
+            left: 0;
+            width: 100%;
+            height: 50%;
+            font-size: 1.25em;
+        }
+
+        /* Speaker layout: Tall */
+        body[data-speaker-layout="tall"] #current-slide,
+        body[data-speaker-layout="tall"] #upcoming-slide {
+            width: 45%;
+            height: 50%;
+            padding: 6px;
+        }
+
+        body[data-speaker-layout="tall"] #current-slide {
+            top: 0;
+            left: 0;
+        }
+
+        body[data-speaker-layout="tall"] #upcoming-slide {
+            top: 50%;
+            left: 0;
+        }
+
+        body[data-speaker-layout="tall"] #speaker-controls {
+            padding-top: 40px;
+            top: 0;
+            left: 45%;
+            width: 55%;
+            height: 100%;
+            font-size: 1.25em;
+        }
+
+        /* Speaker layout: Notes only */
+        body[data-speaker-layout="notes-only"] #current-slide,
+        body[data-speaker-layout="notes-only"] #upcoming-slide {
+            display: none;
+        }
+
+        body[data-speaker-layout="notes-only"] #speaker-controls {
+            padding-top: 40px;
+            top: 0;
+            left: 0;
+            width: 100%;
+            height: 100%;
+            font-size: 1.25em;
+        }
+
+    </style>
+</head>
+
+<body>
+
+<div id="current-slide"></div>
+<div id="upcoming-slide"><span class="overlay-element label">Upcoming</span></div>
+<div id="speaker-controls">
+    <div class="speaker-controls-time">
+        <h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
+        <div class="clock">
+            <span class="clock-value">0:00 AM</span>
+        </div>
+        <div class="timer">
+            <span class="hours-value">00</span><span class="minutes-value">:00</span><span
+                class="seconds-value">:00</span>
+        </div>
+        <div class="clear"></div>
+    </div>
+
+    <div class="speaker-controls-notes hidden">
+        <h4 class="label">Notes</h4>
+        <div class="value"></div>
+    </div>
+</div>
+<div class="overlay-element interactive" id="speaker-layout">
+    <span class="speaker-layout-label"></span>
+    <select class="speaker-layout-dropdown"></select>
+</div>
+
+<script src="/socket.io/socket.io.js"></script>
+<script src="/plugin/markdown/marked.js"></script>
+
+<script>
+  (function () {
+
+    var notes,
+      notesValue,
+      currentState,
+      currentSlide,
+      upcomingSlide,
+      layoutLabel,
+      layoutDropdown,
+      connected = false;
+
+    var socket = io.connect(window.location.origin),
+      socketId = '{{socketId}}';
+
+    var SPEAKER_LAYOUTS = {
+      'default': 'Default',
+      'wide': 'Wide',
+      'tall': 'Tall',
+      'notes-only': 'Notes only'
+    };
+
+    socket.on('statechanged', function (data) {
+
+      // ignore data from sockets that aren't ours
+      if (data.socketId !== socketId) {
+        return;
+      }
+
+      if (connected === false) {
+        connected = true;
+
+        setupKeyboard();
+        setupNotes();
+        setupTimer();
+
+      }
+
+      handleStateMessage(data);
+
+    });
+
+    setupLayout();
+
+    // Load our presentation iframes
+    setupIframes();
+
+    // Once the iframes have loaded, emit a signal saying there's
+    // a new subscriber which will trigger a 'statechanged'
+    // message to be sent back
+    window.addEventListener('message', function (event) {
+
+      var data = JSON.parse(event.data);
+
+      if (data && data.namespace === 'reveal') {
+        if (/ready/.test(data.eventName)) {
+          socket.emit('new-subscriber', {socketId: socketId});
+        }
+      }
+
+      // Messages sent by reveal.js inside of the current slide preview
+      if (data && data.namespace === 'reveal') {
+        if (/slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test(data.eventName) && currentState !== JSON.stringify(data.state)) {
+          socket.emit('statechanged-speaker', {state: data.state});
+        }
+      }
+
+    });
+
+    /**
+     * Called when the main window sends an updated state.
+     */
+    function handleStateMessage(data) {
+
+      // Store the most recently set state to avoid circular loops
+      // applying the same state
+      currentState = JSON.stringify(data.state);
+
+      // No need for updating the notes in case of fragment changes
+      if (data.notes) {
+        notes.classList.remove('hidden');
+        if (data.markdown) {
+          notesValue.innerHTML = marked(data.notes);
+        } else {
+          notesValue.innerHTML = data.notes;
+        }
+      } else {
+        notes.classList.add('hidden');
+      }
+
+      // Update the note slides
+      currentSlide.contentWindow.postMessage(JSON.stringify({
+        method: 'setState',
+        args: [data.state]
+      }), '*');
+      upcomingSlide.contentWindow.postMessage(JSON.stringify({
+        method: 'setState',
+        args: [data.state]
+      }), '*');
+      upcomingSlide.contentWindow.postMessage(JSON.stringify({method: 'next'}), '*');
+
+    }
+
+    // Limit to max one state update per X ms
+    handleStateMessage = debounce(handleStateMessage, 200);
+
+    /**
+     * Forward keyboard events to the current slide window.
+     * This enables keyboard events to work even if focus
+     * isn't set on the current slide iframe.
+     */
+    function setupKeyboard() {
+
+      document.addEventListener('keydown', function (event) {
+        currentSlide.contentWindow.postMessage(JSON.stringify({
+          method: 'triggerKey',
+          args: [event.keyCode]
+        }), '*');
+      });
+
+    }
+
+    /**
+     * Creates the preview iframes.
+     */
+    function setupIframes() {
+
+      var params = [
+        'receiver',
+        'progress=false',
+        'history=false',
+        'transition=none',
+        'backgroundTransition=none'
+      ].join('&');
+
+      var currentURL = '/?' + params + '&postMessageEvents=true';
+      var upcomingURL = '/?' + params + '&controls=false';
+
+      currentSlide = document.createElement('iframe');
+      currentSlide.setAttribute('width', 1280);
+      currentSlide.setAttribute('height', 1024);
+      currentSlide.setAttribute('src', currentURL);
+      document.querySelector('#current-slide').appendChild(currentSlide);
+
+      upcomingSlide = document.createElement('iframe');
+      upcomingSlide.setAttribute('width', 640);
+      upcomingSlide.setAttribute('height', 512);
+      upcomingSlide.setAttribute('src', upcomingURL);
+      document.querySelector('#upcoming-slide').appendChild(upcomingSlide);
+
+    }
+
+    /**
+     * Setup the notes UI.
+     */
+    function setupNotes() {
+
+      notes = document.querySelector('.speaker-controls-notes');
+      notesValue = document.querySelector('.speaker-controls-notes .value');
+
+    }
+
+    /**
+     * Create the timer and clock and start updating them
+     * at an interval.
+     */
+    function setupTimer() {
+
+      var start = new Date(),
+        timeEl = document.querySelector('.speaker-controls-time'),
+        clockEl = timeEl.querySelector('.clock-value'),
+        hoursEl = timeEl.querySelector('.hours-value'),
+        minutesEl = timeEl.querySelector('.minutes-value'),
+        secondsEl = timeEl.querySelector('.seconds-value');
+
+      function _updateTimer() {
+
+        var diff, hours, minutes, seconds,
+          now = new Date();
+
+        diff = now.getTime() - start.getTime();
+        hours = Math.floor(diff / (1000 * 60 * 60));
+        minutes = Math.floor((diff / (1000 * 60)) % 60);
+        seconds = Math.floor((diff / 1000) % 60);
+
+        clockEl.innerHTML = now.toLocaleTimeString('en-US', {
+          hour12: true,
+          hour: '2-digit',
+          minute: '2-digit'
+        });
+        hoursEl.innerHTML = zeroPadInteger(hours);
+        hoursEl.className = hours > 0 ? '' : 'mute';
+        minutesEl.innerHTML = ':' + zeroPadInteger(minutes);
+        minutesEl.className = minutes > 0 ? '' : 'mute';
+        secondsEl.innerHTML = ':' + zeroPadInteger(seconds);
+
+      }
 
-				}
+      // Update once directly
+      _updateTimer();
 
-				// Update once directly
-				_updateTimer();
+      // Then update every second
+      setInterval(_updateTimer, 1000);
 
-				// Then update every second
-				setInterval( _updateTimer, 1000 );
+      timeEl.addEventListener('click', function () {
+        start = new Date();
+        _updateTimer();
+        return false;
+      });
+
+    }
+
+    /**
+     * Sets up the speaker view layout and layout selector.
+     */
+    function setupLayout() {
 
-				timeEl.addEventListener( 'click', function() {
-					start = new Date();
-					_updateTimer();
-					return false;
-				} );
+      layoutDropdown = document.querySelector('.speaker-layout-dropdown');
+      layoutLabel = document.querySelector('.speaker-layout-label');
 
-			}
+      // Render the list of available layouts
+      for (var id in SPEAKER_LAYOUTS) {
+        var option = document.createElement('option');
+        option.setAttribute('value', id);
+        option.textContent = SPEAKER_LAYOUTS[id];
+        layoutDropdown.appendChild(option);
+      }
 
-			/**
-				 * Sets up the speaker view layout and layout selector.
-				 */
-				function setupLayout() {
+      // Monitor the dropdown for changes
+      layoutDropdown.addEventListener('change', function (event) {
 
-					layoutDropdown = document.querySelector( '.speaker-layout-dropdown' );
-					layoutLabel = document.querySelector( '.speaker-layout-label' );
+        setLayout(layoutDropdown.value);
 
-					// Render the list of available layouts
-					for( var id in SPEAKER_LAYOUTS ) {
-						var option = document.createElement( 'option' );
-						option.setAttribute( 'value', id );
-						option.textContent = SPEAKER_LAYOUTS[ id ];
-						layoutDropdown.appendChild( option );
-					}
+      }, false);
 
-					// Monitor the dropdown for changes
-					layoutDropdown.addEventListener( 'change', function( event ) {
+      // Restore any currently persisted layout
+      setLayout(getLayout());
 
-						setLayout( layoutDropdown.value );
+    }
 
-					}, false );
+    /**
+     * Sets a new speaker view layout. The layout is persisted
+     * in local storage.
+     */
+    function setLayout(value) {
 
-					// Restore any currently persisted layout
-					setLayout( getLayout() );
+      var title = SPEAKER_LAYOUTS[value];
 
-				}
+      layoutLabel.innerHTML = 'Layout' + (title ? (': ' + title) : '');
+      layoutDropdown.value = value;
 
-				/**
-				 * Sets a new speaker view layout. The layout is persisted
-				 * in local storage.
-				 */
-				function setLayout( value ) {
+      document.body.setAttribute('data-speaker-layout', value);
 
-					var title = SPEAKER_LAYOUTS[ value ];
+      // Persist locally
+      if (window.localStorage) {
+        window.localStorage.setItem('reveal-speaker-layout', value);
+      }
 
-					layoutLabel.innerHTML = 'Layout' + ( title ? ( ': ' + title ) : '' );
-					layoutDropdown.value = value;
+    }
 
-					document.body.setAttribute( 'data-speaker-layout', value );
+    /**
+     * Returns the ID of the most recently set speaker layout
+     * or our default layout if none has been set.
+     */
+    function getLayout() {
 
-					// Persist locally
-					if( window.localStorage ) {
-						window.localStorage.setItem( 'reveal-speaker-layout', value );
-					}
+      if (window.localStorage) {
+        var layout = window.localStorage.getItem('reveal-speaker-layout');
+        if (layout) {
+          return layout;
+        }
+      }
 
-				}
+      // Default to the first record in the layouts hash
+      for (var id in SPEAKER_LAYOUTS) {
+        return id;
+      }
 
-				/**
-				 * Returns the ID of the most recently set speaker layout
-				 * or our default layout if none has been set.
-				 */
-				function getLayout() {
+    }
 
-					if( window.localStorage ) {
-						var layout = window.localStorage.getItem( 'reveal-speaker-layout' );
-						if( layout ) {
-							return layout;
-						}
-					}
+    function zeroPadInteger(num) {
 
-					// Default to the first record in the layouts hash
-					for( var id in SPEAKER_LAYOUTS ) {
-						return id;
-					}
+      var str = '00' + parseInt(num);
+      return str.substring(str.length - 2);
 
-				}
+    }
 
-			function zeroPadInteger( num ) {
+    /**
+     * Limits the frequency at which a function can be called.
+     */
+    function debounce(fn, ms) {
 
-				var str = '00' + parseInt( num );
-				return str.substring( str.length - 2 );
+      var lastTime = 0,
+        timeout;
 
-			}
+      return function () {
 
-			/**
-			 * Limits the frequency at which a function can be called.
-			 */
-			function debounce( fn, ms ) {
+        var args = arguments;
+        var context = this;
 
-				var lastTime = 0,
-					timeout;
+        clearTimeout(timeout);
 
-				return function() {
+        var timeSinceLastCall = Date.now() - lastTime;
+        if (timeSinceLastCall > ms) {
+          fn.apply(context, args);
+          lastTime = Date.now();
+        } else {
+          timeout = setTimeout(function () {
+            fn.apply(context, args);
+            lastTime = Date.now();
+          }, ms - timeSinceLastCall);
+        }
 
-					var args = arguments;
-					var context = this;
+      }
 
-					clearTimeout( timeout );
+    }
 
-					var timeSinceLastCall = Date.now() - lastTime;
-					if( timeSinceLastCall > ms ) {
-						fn.apply( context, args );
-						lastTime = Date.now();
-					}
-					else {
-						timeout = setTimeout( function() {
-							fn.apply( context, args );
-							lastTime = Date.now();
-						}, ms - timeSinceLastCall );
-					}
+  })();
+</script>
 
-				}
-
-			}
-
-		})();
-		</script>
-
-	</body>
+</body>
 </html>
-- 
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