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+<!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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+
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+ <title>reveal.js - Slide Notes</title>
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ .speaker-controls-time .timer {
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+ float: left;
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+ }
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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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+
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+ .speaker-controls-time span.mute {
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+ color: #bbb;
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+ }
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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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+
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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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+
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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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+
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+ font-size: 1em;
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+ background-color: transparent;
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+
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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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+
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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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+
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+ .clear {
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+ clear: both;
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+ }
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ </style>
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+ </head>
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+
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+ <body>
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+
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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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+
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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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+
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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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+
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+ <script>
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+ (function() {
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+
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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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+
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+ var socket = io.connect( window.location.origin ),
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+ socketId = '{{socketId}}';
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+
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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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+
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+ socket.on( 'statechanged', function( data ) {
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+
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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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+
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+ if( connected === false ) {
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+ connected = true;
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+
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+ setupKeyboard();
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+ setupNotes();
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+ setupTimer();
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+
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+ }
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+
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+ handleStateMessage( data );
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+
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+ } );
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+
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+ setupLayout();
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+
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+ // Load our presentation iframes
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+ setupIframes();
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+
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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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+
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+ var data = JSON.parse( event.data );
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+ }
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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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+ /**
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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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+
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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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+
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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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+
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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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+
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+ var currentURL = '/?' + params + '&postMessageEvents=true';
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+ var upcomingURL = '/?' + params + '&controls=false';
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ function _updateTimer() {
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+
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+ var diff, hours, minutes, seconds,
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+ now = new Date();
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+
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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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+
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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';
|
|
|
+ minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
|
|
|
+ minutesEl.className = minutes > 0 ? '' : 'mute';
|
|
|
+ secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Update once directly
|
|
|
+ _updateTimer();
|
|
|
+
|
|
|
+ // 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() {
|
|
|
+
|
|
|
+ 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>
|