<!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 );
			}
		</style>
	</head>

	<body>

		<div id="wrap-current-slide" class="slides">
			<iframe src="../../index.html" width="1280" height="1024" id="current-slide"></iframe>
		</div>

		<div id="wrap-next-slide" class="slides">
			<iframe src="../../index.html" width="640" height="512" id="next-slide"></iframe>
			<span>UPCOMING:</span>
		</div>
		<div id="notes"></div>

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

				(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 );

						if( data.markdown ) {
							notes.innerHTML = (new Showdown.converter()).makeHtml( data.notes );
						}
						else {
							notes.innerHTML = data.notes;
						}

						// Kill the slide listeners while responding to the event
						removeSlideListeners();

						// Update the note slides
						currentSlide.contentWindow.Reveal.slide( data.indexh, data.indexv );
						nextSlide.contentWindow.Reveal.slide( data.nextindexh, data.nextindexv );

						// Resume listening on the next cycle
						setTimeout( addSlideListeners, 1 );

					}, false );

					function addSlideListeners() {
						currentSlide.contentWindow.Reveal.addEventListener( 'slidechanged', onNotesSlideChange, false );
						nextSlide.contentWindow.Reveal.addEventListener( 'slidechanged', onNotesSlideChange, false );
					}

					function removeSlideListeners() {
						currentSlide.contentWindow.Reveal.removeEventListener( 'slidechanged', onNotesSlideChange, false );
						nextSlide.contentWindow.Reveal.removeEventListener( 'slidechanged', onNotesSlideChange, false );
					}

					function onNotesSlideChange( event ) {
						window.opener.postMessage( JSON.stringify({
							indexh : event.indexh,
							indexv : event.indexv
						}), '*' );
					}

					addSlideListeners();

				})( window );

			}, false );

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