793 lines
19 KiB
HTML
793 lines
19 KiB
HTML
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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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<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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#connection-status {
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position: absolute;
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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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z-index: 20;
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padding: 30% 20% 20% 20%;
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font-size: 18px;
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color: #222;
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background: #fff;
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text-align: center;
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box-sizing: border-box;
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line-height: 1.4;
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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-pace .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, .speaker-controls-pace {
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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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}
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.speaker-controls-time .timer,
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.speaker-controls-time .clock,
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.speaker-controls-time .pacing .hours-value,
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.speaker-controls-time .pacing .minutes-value,
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.speaker-controls-time .pacing .seconds-value {
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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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opacity: 0.3;
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}
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.speaker-controls-time .pacing-title {
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margin-top: 5px;
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}
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.speaker-controls-time .pacing.ahead {
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color: blue;
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}
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.speaker-controls-time .pacing.on-track {
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color: green;
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}
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.speaker-controls-time .pacing.behind {
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color: red;
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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="connection-status">Loading speaker view...</div>
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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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<h4 class="label pacing-title" style="display: none">Pacing – Time to finish current slide</h4>
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<div class="pacing" style="display: none">
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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>
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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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var connectionStatus = document.querySelector( '#connection-status' );
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var connectionTimeout = setTimeout( function() {
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connectionStatus.innerHTML = 'Error connecting to main window.<br>Please try closing and reopening the speaker view.';
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}, 5000 );
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window.addEventListener( 'message', function( event ) {
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clearTimeout( connectionTimeout );
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connectionStatus.style.display = 'none';
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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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|||
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window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' );
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}
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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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|||
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|||
|
|
window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ]} ), '*' );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
} );
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Called when the main window is trying to establish a
|
|||
|
|
* connection.
|
|||
|
|
*/
|
|||
|
|
function handleConnectMessage( data ) {
|
|||
|
|
|
|||
|
|
if( connected === false ) {
|
|||
|
|
connected = true;
|
|||
|
|
|
|||
|
|
setupIframes( data );
|
|||
|
|
setupKeyboard();
|
|||
|
|
setupNotes();
|
|||
|
|
setupTimer();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Called when the main window sends an updated state.
|
|||
|
|
*/
|
|||
|
|
function handleStateMessage( data ) {
|
|||
|
|
|
|||
|
|
// Store the most recently set state to avoid circular loops
|
|||
|
|
// applying the same state
|
|||
|
|
currentState = JSON.stringify( data.state );
|
|||
|
|
|
|||
|
|
// No need for updating the notes in case of fragment changes
|
|||
|
|
if ( data.notes ) {
|
|||
|
|
notes.classList.remove( 'hidden' );
|
|||
|
|
notesValue.style.whiteSpace = data.whitespace;
|
|||
|
|
if( data.markdown ) {
|
|||
|
|
notesValue.innerHTML = marked( data.notes );
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
notesValue.innerHTML = data.notes;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
notes.classList.add( 'hidden' );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Update the note slides
|
|||
|
|
currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
|
|||
|
|
upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
|
|||
|
|
upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Limit to max one state update per X ms
|
|||
|
|
handleStateMessage = debounce( handleStateMessage, 200 );
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Forward keyboard events to the current slide window.
|
|||
|
|
* This enables keyboard events to work even if focus
|
|||
|
|
* isn't set on the current slide iframe.
|
|||
|
|
*
|
|||
|
|
* Block F5 default handling, it reloads and disconnects
|
|||
|
|
* the speaker notes window.
|
|||
|
|
*/
|
|||
|
|
function setupKeyboard() {
|
|||
|
|
|
|||
|
|
document.addEventListener( 'keydown', function( event ) {
|
|||
|
|
if( event.keyCode === 116 || ( event.metaKey && event.keyCode === 82 ) ) {
|
|||
|
|
event.preventDefault();
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
|
|||
|
|
} );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Creates the preview iframes.
|
|||
|
|
*/
|
|||
|
|
function setupIframes( data ) {
|
|||
|
|
|
|||
|
|
var params = [
|
|||
|
|
'receiver',
|
|||
|
|
'progress=false',
|
|||
|
|
'history=false',
|
|||
|
|
'transition=none',
|
|||
|
|
'autoSlide=0',
|
|||
|
|
'backgroundTransition=none'
|
|||
|
|
].join( '&' );
|
|||
|
|
|
|||
|
|
var urlSeparator = /\?/.test(data.url) ? '&' : '?';
|
|||
|
|
var hash = '#/' + data.state.indexh + '/' + data.state.indexv;
|
|||
|
|
var currentURL = data.url + urlSeparator + params + '&postMessageEvents=true' + hash;
|
|||
|
|
var upcomingURL = data.url + urlSeparator + params + '&controls=false' + hash;
|
|||
|
|
|
|||
|
|
currentSlide = document.createElement( 'iframe' );
|
|||
|
|
currentSlide.setAttribute( 'width', 1280 );
|
|||
|
|
currentSlide.setAttribute( 'height', 1024 );
|
|||
|
|
currentSlide.setAttribute( 'src', currentURL );
|
|||
|
|
document.querySelector( '#current-slide' ).appendChild( currentSlide );
|
|||
|
|
|
|||
|
|
upcomingSlide = document.createElement( 'iframe' );
|
|||
|
|
upcomingSlide.setAttribute( 'width', 640 );
|
|||
|
|
upcomingSlide.setAttribute( 'height', 512 );
|
|||
|
|
upcomingSlide.setAttribute( 'src', upcomingURL );
|
|||
|
|
document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Setup the notes UI.
|
|||
|
|
*/
|
|||
|
|
function setupNotes() {
|
|||
|
|
|
|||
|
|
notes = document.querySelector( '.speaker-controls-notes' );
|
|||
|
|
notesValue = document.querySelector( '.speaker-controls-notes .value' );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function getTimings() {
|
|||
|
|
|
|||
|
|
var slides = Reveal.getSlides();
|
|||
|
|
var defaultTiming = Reveal.getConfig().defaultTiming;
|
|||
|
|
if (defaultTiming == null) {
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
var timings = [];
|
|||
|
|
for ( var i in slides ) {
|
|||
|
|
var slide = slides[i];
|
|||
|
|
var timing = defaultTiming;
|
|||
|
|
if( slide.hasAttribute( 'data-timing' )) {
|
|||
|
|
var t = slide.getAttribute( 'data-timing' );
|
|||
|
|
timing = parseInt(t);
|
|||
|
|
if( isNaN(timing) ) {
|
|||
|
|
console.warn("Could not parse timing '" + t + "' of slide " + i + "; using default of " + defaultTiming);
|
|||
|
|
timing = defaultTiming;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
timings.push(timing);
|
|||
|
|
}
|
|||
|
|
return timings;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Return the number of seconds allocated for presenting
|
|||
|
|
* all slides up to and including this one.
|
|||
|
|
*/
|
|||
|
|
function getTimeAllocated(timings) {
|
|||
|
|
|
|||
|
|
var slides = Reveal.getSlides();
|
|||
|
|
var allocated = 0;
|
|||
|
|
var currentSlide = Reveal.getSlidePastCount();
|
|||
|
|
for (var i in slides.slice(0, currentSlide + 1)) {
|
|||
|
|
allocated += timings[i];
|
|||
|
|
}
|
|||
|
|
return allocated;
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Create the timer and clock and start updating them
|
|||
|
|
* at an interval.
|
|||
|
|
*/
|
|||
|
|
function setupTimer() {
|
|||
|
|
|
|||
|
|
var start = new Date(),
|
|||
|
|
timeEl = document.querySelector( '.speaker-controls-time' ),
|
|||
|
|
clockEl = timeEl.querySelector( '.clock-value' ),
|
|||
|
|
hoursEl = timeEl.querySelector( '.hours-value' ),
|
|||
|
|
minutesEl = timeEl.querySelector( '.minutes-value' ),
|
|||
|
|
secondsEl = timeEl.querySelector( '.seconds-value' ),
|
|||
|
|
pacingTitleEl = timeEl.querySelector( '.pacing-title' ),
|
|||
|
|
pacingEl = timeEl.querySelector( '.pacing' ),
|
|||
|
|
pacingHoursEl = pacingEl.querySelector( '.hours-value' ),
|
|||
|
|
pacingMinutesEl = pacingEl.querySelector( '.minutes-value' ),
|
|||
|
|
pacingSecondsEl = pacingEl.querySelector( '.seconds-value' );
|
|||
|
|
|
|||
|
|
var timings = getTimings();
|
|||
|
|
if (timings !== null) {
|
|||
|
|
pacingTitleEl.style.removeProperty('display');
|
|||
|
|
pacingEl.style.removeProperty('display');
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function _displayTime( hrEl, minEl, secEl, time) {
|
|||
|
|
|
|||
|
|
var sign = Math.sign(time) == -1 ? "-" : "";
|
|||
|
|
time = Math.abs(Math.round(time / 1000));
|
|||
|
|
var seconds = time % 60;
|
|||
|
|
var minutes = Math.floor( time / 60 ) % 60 ;
|
|||
|
|
var hours = Math.floor( time / ( 60 * 60 )) ;
|
|||
|
|
hrEl.innerHTML = sign + zeroPadInteger( hours );
|
|||
|
|
if (hours == 0) {
|
|||
|
|
hrEl.classList.add( 'mute' );
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
hrEl.classList.remove( 'mute' );
|
|||
|
|
}
|
|||
|
|
minEl.innerHTML = ':' + zeroPadInteger( minutes );
|
|||
|
|
if (hours == 0 && minutes == 0) {
|
|||
|
|
minEl.classList.add( 'mute' );
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
minEl.classList.remove( 'mute' );
|
|||
|
|
}
|
|||
|
|
secEl.innerHTML = ':' + zeroPadInteger( seconds );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function _updateTimer() {
|
|||
|
|
|
|||
|
|
var diff, hours, minutes, seconds,
|
|||
|
|
now = new Date();
|
|||
|
|
|
|||
|
|
diff = now.getTime() - start.getTime();
|
|||
|
|
|
|||
|
|
clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
|
|||
|
|
_displayTime( hoursEl, minutesEl, secondsEl, diff );
|
|||
|
|
if (timings !== null) {
|
|||
|
|
_updatePacing(diff);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function _updatePacing(diff) {
|
|||
|
|
|
|||
|
|
var slideEndTiming = getTimeAllocated(timings) * 1000;
|
|||
|
|
var currentSlide = Reveal.getSlidePastCount();
|
|||
|
|
var currentSlideTiming = timings[currentSlide] * 1000;
|
|||
|
|
var timeLeftCurrentSlide = slideEndTiming - diff;
|
|||
|
|
if (timeLeftCurrentSlide < 0) {
|
|||
|
|
pacingEl.className = 'pacing behind';
|
|||
|
|
}
|
|||
|
|
else if (timeLeftCurrentSlide < currentSlideTiming) {
|
|||
|
|
pacingEl.className = 'pacing on-track';
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
pacingEl.className = 'pacing ahead';
|
|||
|
|
}
|
|||
|
|
_displayTime( pacingHoursEl, pacingMinutesEl, pacingSecondsEl, timeLeftCurrentSlide );
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Update once directly
|
|||
|
|
_updateTimer();
|
|||
|
|
|
|||
|
|
// Then update every second
|
|||
|
|
setInterval( _updateTimer, 1000 );
|
|||
|
|
|
|||
|
|
function _resetTimer() {
|
|||
|
|
|
|||
|
|
if (timings == null) {
|
|||
|
|
start = new Date();
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
// Reset timer to beginning of current slide
|
|||
|
|
var slideEndTiming = getTimeAllocated(timings) * 1000;
|
|||
|
|
var currentSlide = Reveal.getSlidePastCount();
|
|||
|
|
var currentSlideTiming = timings[currentSlide] * 1000;
|
|||
|
|
var previousSlidesTiming = slideEndTiming - currentSlideTiming;
|
|||
|
|
var now = new Date();
|
|||
|
|
start = new Date(now.getTime() - previousSlidesTiming);
|
|||
|
|
}
|
|||
|
|
_updateTimer();
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
timeEl.addEventListener( 'click', function() {
|
|||
|
|
_resetTimer();
|
|||
|
|
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( supportsLocalStorage() ) {
|
|||
|
|
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( supportsLocalStorage() ) {
|
|||
|
|
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 supportsLocalStorage() {
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
localStorage.setItem('test', 'test');
|
|||
|
|
localStorage.removeItem('test');
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
catch( e ) {
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
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 );
|
|||
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}
|
|||
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|
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|||
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|
}
|
|||
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|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
})();
|
|||
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|
|||
|
|
</script>
|
|||
|
|
</body>
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|||
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|
</html>
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