<!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;

				-webkit-transform-origin: 0 0;
					 -moz-transform-origin: 0 0;
						-ms-transform-origin: 0 0;
						 -o-transform-origin: 0 0;
								transform-origin: 0 0;

				-webkit-transform: scale(0.5);
					 -moz-transform: scale(0.5);
						-ms-transform: scale(0.5);
						 -o-transform: scale(0.5);
								transform: scale(0.5);
			}

			#wrap-next-slide {
				width: 448px;
				height: 358px;
				float: left;
				margin: 0 0 0 10px;
				overflow: hidden;
			}

			#next-slide {
				width: 1280px;
				height: 1024px;
				border: none;

				-webkit-transform-origin: 0 0;
					 -moz-transform-origin: 0 0;
						-ms-transform-origin: 0 0;
						 -o-transform-origin: 0 0;
								transform-origin: 0 0;

				-webkit-transform: scale(0.35);
					 -moz-transform: scale(0.35);
						-ms-transform: scale(0.35);
						 -o-transform: scale(0.35);
								transform: scale(0.35);
			}

			.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 );
			}

			.error {
				font-weight: bold;
				color: red;
				font-size: 1.5em;
				text-align: center;
				margin-top: 10%;
			}

			.error code {
				font-family: monospace;
			}
		</style>
	</head>

	<body>

		<div id="wrap-current-slide" class="slides">
			<script>document.write( '<iframe width="1280" height="1024" id="current-slide" src="'+ window.opener.location.href +'"></iframe>' );</script>
		</div>

		<div id="wrap-next-slide" class="slides">
			<script>document.write( '<iframe width="640" height="512" id="next-slide" src="'+ window.opener.location.href +'"></iframe>' );</script>
			<span>UPCOMING:</span>
		</div>
		<div id="notes"></div>

		<script src="../../plugin/markdown/showdown.js"></script>
		<script>
			window.addEventListener( 'load', function() {

				if( window.opener && window.opener.location && window.opener.location.href ) {

					(function( window, undefined ) {
						var notes = document.getElementById( 'notes' ),
							currentSlide = document.getElementById( 'current-slide' ),
							nextSlide = document.getElementById( 'next-slide' );

						window.addEventListener( 'message', function( event ) {
							var data = JSON.parse( event.data );
							// No need for updating the notes in case of fragment changes
							if ( data.notes !== undefined) {
								if( data.markdown ) {
									notes.innerHTML = (new Showdown.converter()).makeHtml( data.notes );
								}
								else {
									notes.innerHTML = data.notes;
								}
							}

							// Showing and hiding fragments
							if( data.fragment === 'next' ) {
								currentSlide.contentWindow.Reveal.nextFragment();
							}
							else if( data.fragment === 'prev' ) {
								currentSlide.contentWindow.Reveal.prevFragment();
							}
							else {
								// Update the note slides
								currentSlide.contentWindow.Reveal.slide( data.indexh, data.indexv );
								nextSlide.contentWindow.Reveal.slide( data.nextindexh, data.nextindexv );
							}

						}, false );

					})( window );

				}
				else {

					document.body.innerHTML =  '<p class="error">Unable to access <code>window.opener.location</code>.<br>Make sure the presentation is running on a web server.</p>';

				}

			}, false );

		</script>
	</body>
</html>