586 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			586 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
<!doctype html>
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<html lang="en">
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	<head>
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		<meta charset="utf-8">
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		<title>reveal.js - Slide Notes</title>
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		<style>
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			body {
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				font-family: Helvetica;
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				font-size: 18px;
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			}
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			#current-slide,
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			#upcoming-slide,
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			#speaker-controls {
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				padding: 6px;
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				box-sizing: border-box;
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				-moz-box-sizing: border-box;
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			}
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			#current-slide iframe,
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			#upcoming-slide iframe {
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				width: 100%;
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				height: 100%;
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				border: 1px solid #ddd;
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			}
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			#current-slide .label,
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			#upcoming-slide .label {
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				position: absolute;
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				top: 10px;
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				left: 10px;
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				z-index: 2;
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			}
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			.overlay-element {
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				height: 34px;
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				line-height: 34px;
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				padding: 0 10px;
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				text-shadow: none;
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				background: rgba( 220, 220, 220, 0.8 );
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				color: #222;
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				font-size: 14px;
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			}
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			.overlay-element.interactive:hover {
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				background: rgba( 220, 220, 220, 1 );
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			}
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			#current-slide {
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				position: absolute;
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				width: 60%;
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				height: 100%;
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				top: 0;
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				left: 0;
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				padding-right: 0;
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			}
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			#upcoming-slide {
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				position: absolute;
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				width: 40%;
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				height: 40%;
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				right: 0;
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				top: 0;
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			}
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			/* Speaker controls */
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			#speaker-controls {
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				position: absolute;
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				top: 40%;
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				right: 0;
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				width: 40%;
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				height: 60%;
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				overflow: auto;
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				font-size: 18px;
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			}
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				.speaker-controls-time.hidden,
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				.speaker-controls-notes.hidden {
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					display: none;
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				}
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				.speaker-controls-time .label,
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				.speaker-controls-notes .label {
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					text-transform: uppercase;
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					font-weight: normal;
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					font-size: 0.66em;
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					color: #666;
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					margin: 0;
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				}
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				.speaker-controls-time {
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					border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
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					margin-bottom: 10px;
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					padding: 10px 16px;
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					padding-bottom: 20px;
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					cursor: pointer;
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				}
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				.speaker-controls-time .reset-button {
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					opacity: 0;
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					float: right;
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					color: #666;
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					text-decoration: none;
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				}
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				.speaker-controls-time:hover .reset-button {
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					opacity: 1;
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				}
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				.speaker-controls-time .timer,
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				.speaker-controls-time .clock {
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					width: 50%;
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					font-size: 1.9em;
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				}
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				.speaker-controls-time .timer {
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					float: left;
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				}
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				.speaker-controls-time .clock {
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					float: right;
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					text-align: right;
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				}
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				.speaker-controls-time span.mute {
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					color: #bbb;
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				}
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				.speaker-controls-notes {
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					padding: 10px 16px;
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				}
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				.speaker-controls-notes .value {
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					margin-top: 5px;
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					line-height: 1.4;
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					font-size: 1.2em;
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				}
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			/* Layout selector */
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			#speaker-layout {
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				position: absolute;
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				top: 10px;
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				right: 10px;
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				color: #222;
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				z-index: 10;
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			}
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				#speaker-layout select {
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					position: absolute;
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					width: 100%;
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					height: 100%;
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					top: 0;
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					left: 0;
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					border: 0;
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					box-shadow: 0;
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					cursor: pointer;
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					opacity: 0;
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					font-size: 1em;
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					background-color: transparent;
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					-moz-appearance: none;
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					-webkit-appearance: none;
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					-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
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				}
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				#speaker-layout select:focus {
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					outline: none;
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					box-shadow: none;
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				}
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			.clear {
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				clear: both;
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			}
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			/* Speaker layout: Wide */
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			body[data-speaker-layout="wide"] #current-slide,
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			body[data-speaker-layout="wide"] #upcoming-slide {
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				width: 50%;
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				height: 45%;
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				padding: 6px;
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			}
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			body[data-speaker-layout="wide"] #current-slide {
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				top: 0;
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				left: 0;
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			}
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			body[data-speaker-layout="wide"] #upcoming-slide {
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				top: 0;
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				left: 50%;
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			}
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			body[data-speaker-layout="wide"] #speaker-controls {
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				top: 45%;
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				left: 0;
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				width: 100%;
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				height: 50%;
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				font-size: 1.25em;
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			}
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			/* Speaker layout: Tall */
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			body[data-speaker-layout="tall"] #current-slide,
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			body[data-speaker-layout="tall"] #upcoming-slide {
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				width: 45%;
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				height: 50%;
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				padding: 6px;
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			}
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			body[data-speaker-layout="tall"] #current-slide {
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				top: 0;
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				left: 0;
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			}
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			body[data-speaker-layout="tall"] #upcoming-slide {
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				top: 50%;
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				left: 0;
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			}
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			body[data-speaker-layout="tall"] #speaker-controls {
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				padding-top: 40px;
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				top: 0;
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				left: 45%;
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				width: 55%;
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				height: 100%;
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				font-size: 1.25em;
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			}
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			/* Speaker layout: Notes only */
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			body[data-speaker-layout="notes-only"] #current-slide,
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			body[data-speaker-layout="notes-only"] #upcoming-slide {
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				display: none;
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			}
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			body[data-speaker-layout="notes-only"] #speaker-controls {
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				padding-top: 40px;
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				top: 0;
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				left: 0;
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				width: 100%;
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				height: 100%;
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				font-size: 1.25em;
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			}
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		</style>
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	</head>
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	<body>
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		<div id="current-slide"></div>
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		<div id="upcoming-slide"><span class="overlay-element label">Upcoming</span></div>
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		<div id="speaker-controls">
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			<div class="speaker-controls-time">
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				<h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
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				<div class="clock">
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					<span class="clock-value">0:00 AM</span>
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				</div>
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				<div class="timer">
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					<span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
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				</div>
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				<div class="clear"></div>
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			</div>
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			<div class="speaker-controls-notes hidden">
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				<h4 class="label">Notes</h4>
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				<div class="value"></div>
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			</div>
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		</div>
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		<div id="speaker-layout" class="overlay-element interactive">
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			<span class="speaker-layout-label"></span>
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			<select class="speaker-layout-dropdown"></select>
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		</div>
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		<script src="/socket.io/socket.io.js"></script>
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		<script src="/plugin/markdown/marked.js"></script>
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		<script>
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		(function() {
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			var notes,
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				notesValue,
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				currentState,
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				currentSlide,
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				upcomingSlide,
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				layoutLabel,
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				layoutDropdown,
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				connected = false;
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			var socket = io.connect( window.location.origin ),
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				socketId = '{{socketId}}';
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			var SPEAKER_LAYOUTS = {
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				'default': 'Default',
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				'wide': 'Wide',
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				'tall': 'Tall',
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				'notes-only': 'Notes only'
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			};
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			socket.on( 'statechanged', function( data ) {
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				// ignore data from sockets that aren't ours
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				if( data.socketId !== socketId ) { return; }
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				if( connected === false ) {
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					connected = true;
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					setupKeyboard();
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					setupNotes();
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					setupTimer();
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				}
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				handleStateMessage( data );
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			} );
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			setupLayout();
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			// Load our presentation iframes
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			setupIframes();
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			// Once the iframes have loaded, emit a signal saying there's
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			// a new subscriber which will trigger a 'statechanged'
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			// message to be sent back
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			window.addEventListener( 'message', function( event ) {
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				var data = JSON.parse( event.data );
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				if( data && data.namespace === 'reveal' ) {
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					if( /ready/.test( data.eventName ) ) {
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						socket.emit( 'new-subscriber', { socketId: socketId } );
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					}
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				}
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				// Messages sent by reveal.js inside of the current slide preview
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				if( data && data.namespace === 'reveal' ) {
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					if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
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						socket.emit( 'statechanged-speaker', { state: data.state } );
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					}
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				}
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			} );
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			/**
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			 * Called when the main window sends an updated state.
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			 */
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			function handleStateMessage( data ) {
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				// Store the most recently set state to avoid circular loops
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				// applying the same state
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				currentState = JSON.stringify( data.state );
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				// No need for updating the notes in case of fragment changes
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				if ( data.notes ) {
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					notes.classList.remove( 'hidden' );
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					if( data.markdown ) {
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						notesValue.innerHTML = marked( data.notes );
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					}
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					else {
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						notesValue.innerHTML = data.notes;
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					}
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				}
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				else {
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					notes.classList.add( 'hidden' );
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				}
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				// Update the note slides
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				currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
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				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
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				upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
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			}
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			// Limit to max one state update per X ms
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			handleStateMessage = debounce( handleStateMessage, 200 );
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			/**
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			 * Forward keyboard events to the current slide window.
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			 * This enables keyboard events to work even if focus
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			 * isn't set on the current slide iframe.
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			 */
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			function setupKeyboard() {
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				document.addEventListener( 'keydown', function( event ) {
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					currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
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				} );
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			}
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			/**
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			 * Creates the preview iframes.
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			 */
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			function setupIframes() {
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				var params = [
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					'receiver',
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					'progress=false',
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					'history=false',
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					'transition=none',
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					'backgroundTransition=none'
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				].join( '&' );
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				var currentURL = '/?' + params + '&postMessageEvents=true';
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				var upcomingURL = '/?' + params + '&controls=false';
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				currentSlide = document.createElement( 'iframe' );
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				currentSlide.setAttribute( 'width', 1280 );
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				currentSlide.setAttribute( 'height', 1024 );
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				currentSlide.setAttribute( 'src', currentURL );
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				document.querySelector( '#current-slide' ).appendChild( currentSlide );
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				upcomingSlide = document.createElement( 'iframe' );
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				upcomingSlide.setAttribute( 'width', 640 );
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				upcomingSlide.setAttribute( 'height', 512 );
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				upcomingSlide.setAttribute( 'src', upcomingURL );
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				document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
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			}
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			/**
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			 * Setup the notes UI.
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			 */
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			function setupNotes() {
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				notes = document.querySelector( '.speaker-controls-notes' );
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				notesValue = document.querySelector( '.speaker-controls-notes .value' );
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			}
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			/**
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			 * Create the timer and clock and start updating them
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			 * at an interval.
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			 */
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			function setupTimer() {
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				var start = new Date(),
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					timeEl = document.querySelector( '.speaker-controls-time' ),
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					clockEl = timeEl.querySelector( '.clock-value' ),
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					hoursEl = timeEl.querySelector( '.hours-value' ),
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					minutesEl = timeEl.querySelector( '.minutes-value' ),
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					secondsEl = timeEl.querySelector( '.seconds-value' );
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				function _updateTimer() {
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					var diff, hours, minutes, seconds,
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						now = new Date();
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					diff = now.getTime() - start.getTime();
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					hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
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					minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
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					seconds = Math.floor( ( diff / 1000 ) % 60 );
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					clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
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					hoursEl.innerHTML = zeroPadInteger( hours );
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					hoursEl.className = hours > 0 ? '' : 'mute';
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					minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
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					minutesEl.className = minutes > 0 ? '' : 'mute';
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					secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
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				}
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				// Update once directly
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				_updateTimer();
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				// Then update every second
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				setInterval( _updateTimer, 1000 );
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				timeEl.addEventListener( 'click', function() {
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					start = new Date();
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					_updateTimer();
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					return false;
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				} );
 | 
						||
 | 
						||
			}
 | 
						||
 | 
						||
			/**
 | 
						||
				 * Sets up the speaker view layout and layout selector.
 | 
						||
				 */
 | 
						||
				function setupLayout() {
 | 
						||
 | 
						||
					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 );
 | 
						||
					}
 | 
						||
 | 
						||
					// Monitor the dropdown for changes
 | 
						||
					layoutDropdown.addEventListener( 'change', function( event ) {
 | 
						||
 | 
						||
						setLayout( layoutDropdown.value );
 | 
						||
 | 
						||
					}, false );
 | 
						||
 | 
						||
					// Restore any currently persisted layout
 | 
						||
					setLayout( getLayout() );
 | 
						||
 | 
						||
				}
 | 
						||
 | 
						||
				/**
 | 
						||
				 * Sets a new speaker view layout. The layout is persisted
 | 
						||
				 * in local storage.
 | 
						||
				 */
 | 
						||
				function setLayout( value ) {
 | 
						||
 | 
						||
					var title = SPEAKER_LAYOUTS[ value ];
 | 
						||
 | 
						||
					layoutLabel.innerHTML = 'Layout' + ( title ? ( ': ' + title ) : '' );
 | 
						||
					layoutDropdown.value = value;
 | 
						||
 | 
						||
					document.body.setAttribute( 'data-speaker-layout', value );
 | 
						||
 | 
						||
					// Persist locally
 | 
						||
					if( window.localStorage ) {
 | 
						||
						window.localStorage.setItem( 'reveal-speaker-layout', value );
 | 
						||
					}
 | 
						||
 | 
						||
				}
 | 
						||
 | 
						||
				/**
 | 
						||
				 * 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;
 | 
						||
						}
 | 
						||
					}
 | 
						||
 | 
						||
					// Default to the first record in the layouts hash
 | 
						||
					for( var id in SPEAKER_LAYOUTS ) {
 | 
						||
						return id;
 | 
						||
					}
 | 
						||
 | 
						||
				}
 | 
						||
 | 
						||
			function zeroPadInteger( num ) {
 | 
						||
 | 
						||
				var str = '00' + parseInt( num );
 | 
						||
				return str.substring( str.length - 2 );
 | 
						||
 | 
						||
			}
 | 
						||
 | 
						||
			/**
 | 
						||
			 * Limits the frequency at which a function can be called.
 | 
						||
			 */
 | 
						||
			function debounce( fn, ms ) {
 | 
						||
 | 
						||
				var lastTime = 0,
 | 
						||
					timeout;
 | 
						||
 | 
						||
				return function() {
 | 
						||
 | 
						||
					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>
 | 
						||
 | 
						||
	</body>
 | 
						||
</html>
 |