610 lines
14 KiB
HTML
610 lines
14 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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@media screen and (max-width: 1080px) {
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body[data-speaker-layout="default"] #speaker-controls {
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font-size: 16px;
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}
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}
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@media screen and (max-width: 900px) {
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body[data-speaker-layout="default"] #speaker-controls {
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font-size: 14px;
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}
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}
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@media screen and (max-width: 800px) {
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body[data-speaker-layout="default"] #speaker-controls {
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font-size: 12px;
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}
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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="../../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 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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setupLayout();
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window.addEventListener( 'message', function( event ) {
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var data = JSON.parse( event.data );
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// The overview mode is only useful to the reveal.js instance
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// where navigation occurs so we don't sync it
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if( data.state ) delete data.state.overview;
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// Messages sent by the notes plugin inside of the main window
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if( data && data.namespace === 'reveal-notes' ) {
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if( data.type === 'connect' ) {
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handleConnectMessage( data );
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}
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else if( data.type === 'state' ) {
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handleStateMessage( data );
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}
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}
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// Messages sent by the reveal.js inside of the current slide preview
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else if( data && data.namespace === 'reveal' ) {
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if( /ready/.test( data.eventName ) ) {
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// Send a message back to notify that the handshake is complete
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window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' );
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}
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else if( /slidechanged|fragmentshown|fragmenthidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
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window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ 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 is trying to establish a
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* connection.
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*/
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function handleConnectMessage( data ) {
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if( connected === false ) {
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connected = true;
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setupIframes( data );
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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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* 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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notesValue.style.whiteSpace = data.whitespace;
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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( data ) {
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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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'autoSlide=0',
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'backgroundTransition=none'
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].join( '&' );
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var urlSeparator = /\?/.test(data.url) ? '&' : '?';
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var hash = '#/' + data.state.indexh + '/' + data.state.indexv;
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var currentURL = data.url + urlSeparator + params + '&postMessageEvents=true' + hash;
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var upcomingURL = data.url + urlSeparator + params + '&controls=false' + hash;
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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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} );
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}
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/**
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* Sets up the speaker view layout and layout selector.
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*/
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function setupLayout() {
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layoutDropdown = document.querySelector( '.speaker-layout-dropdown' );
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layoutLabel = document.querySelector( '.speaker-layout-label' );
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// Render the list of available layouts
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for( var id in SPEAKER_LAYOUTS ) {
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var option = document.createElement( 'option' );
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option.setAttribute( 'value', id );
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option.textContent = SPEAKER_LAYOUTS[ id ];
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layoutDropdown.appendChild( option );
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}
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// Monitor the dropdown for changes
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layoutDropdown.addEventListener( 'change', function( event ) {
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setLayout( layoutDropdown.value );
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}, false );
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// Restore any currently persisted layout
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setLayout( getLayout() );
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}
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/**
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* Sets a new speaker view layout. The layout is persisted
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* in local storage.
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*/
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function setLayout( value ) {
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var title = SPEAKER_LAYOUTS[ value ];
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layoutLabel.innerHTML = 'Layout' + ( title ? ( ': ' + title ) : '' );
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layoutDropdown.value = value;
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document.body.setAttribute( 'data-speaker-layout', value );
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// Persist locally
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if( window.localStorage ) {
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window.localStorage.setItem( 'reveal-speaker-layout', value );
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}
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}
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/**
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* Returns the ID of the most recently set speaker layout
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* or our default layout if none has been set.
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*/
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function getLayout() {
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if( window.localStorage ) {
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var layout = window.localStorage.getItem( 'reveal-speaker-layout' );
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if( layout ) {
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return layout;
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}
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}
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// Default to the first record in the layouts hash
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for( var id in SPEAKER_LAYOUTS ) {
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return id;
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}
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}
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function zeroPadInteger( num ) {
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var str = '00' + parseInt( num );
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return str.substring( str.length - 2 );
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}
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/**
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* Limits the frequency at which a function can be called.
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*/
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function debounce( fn, ms ) {
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var lastTime = 0,
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timeout;
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return function() {
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var args = arguments;
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var context = this;
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clearTimeout( timeout );
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var timeSinceLastCall = Date.now() - lastTime;
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if( timeSinceLastCall > ms ) {
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fn.apply( context, args );
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lastTime = Date.now();
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}
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else {
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timeout = setTimeout( function() {
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fn.apply( context, args );
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lastTime = Date.now();
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}, ms - timeSinceLastCall );
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}
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}
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}
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})();
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</script>
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</body>
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</html>
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