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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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pendingCalls = {}, |
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lastRevealApiCallId = 0, |
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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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else if( data.type === 'return' ) { |
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pendingCalls[data.callId](data.result); |
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delete pendingCalls[data.callId]; |
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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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* Asynchronously calls the Reveal.js API of the main frame. |
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*/ |
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function callRevealApi( methodName, methodArguments, callback ) { |
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var callId = ++lastRevealApiCallId; |
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pendingCalls[callId] = callback; |
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window.opener.postMessage( JSON.stringify( { |
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namespace: 'reveal-notes', |
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type: 'call', |
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callId: callId, |
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methodName: methodName, |
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arguments: methodArguments |
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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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* Block F5 default handling, it reloads and disconnects |
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* the speaker notes window. |
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*/ |
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function setupKeyboard() { |
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document.addEventListener( 'keydown', function( event ) { |
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if( event.keyCode === 116 || ( event.metaKey && event.keyCode === 82 ) ) { |
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event.preventDefault(); |
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return false; |
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} |
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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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function getTimings( callback ) { |
|
|
|
|
|
callRevealApi( 'getSlidesAttributes', [], function ( slideAttributes ) { |
|
|
callRevealApi( 'getConfig', [], function ( config ) { |
|
|
var defaultTiming = config.defaultTiming; |
|
|
if (defaultTiming == null) { |
|
|
callback(null); |
|
|
return; |
|
|
} |
|
|
|
|
|
var timings = []; |
|
|
for ( var i in slideAttributes ) { |
|
|
var slide = slideAttributes[ i ]; |
|
|
var timing = defaultTiming; |
|
|
if( slide.hasOwnProperty( 'data-timing' )) { |
|
|
var t = slide[ '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); |
|
|
} |
|
|
|
|
|
callback( timings ); |
|
|
} ); |
|
|
} ); |
|
|
|
|
|
} |
|
|
|
|
|
/** |
|
|
* Return the number of seconds allocated for presenting |
|
|
* all slides up to and including this one. |
|
|
*/ |
|
|
function getTimeAllocated( timings, callback ) { |
|
|
|
|
|
callRevealApi( 'getSlidePastCount', [], function ( currentSlide ) { |
|
|
var allocated = 0; |
|
|
for (var i in timings.slice(0, currentSlide + 1)) { |
|
|
allocated += timings[i]; |
|
|
} |
|
|
callback( 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 = null; |
|
|
getTimings( function ( _timings ) { |
|
|
|
|
|
timings = _timings; |
|
|
if (_timings !== null) { |
|
|
pacingTitleEl.style.removeProperty('display'); |
|
|
pacingEl.style.removeProperty('display'); |
|
|
} |
|
|
|
|
|
// Update once directly |
|
|
_updateTimer(); |
|
|
|
|
|
// Then update every second |
|
|
setInterval( _updateTimer, 1000 ); |
|
|
|
|
|
} ); |
|
|
|
|
|
|
|
|
function _resetTimer() { |
|
|
|
|
|
if (timings == null) { |
|
|
start = new Date(); |
|
|
_updateTimer(); |
|
|
} |
|
|
else { |
|
|
// Reset timer to beginning of current slide |
|
|
getTimeAllocated( timings, function ( slideEndTimingSeconds ) { |
|
|
var slideEndTiming = slideEndTimingSeconds * 1000; |
|
|
callRevealApi( 'getSlidePastCount', [], function ( currentSlide ) { |
|
|
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; |
|
|
} ); |
|
|
|
|
|
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) { |
|
|
|
|
|
getTimeAllocated( timings, function ( slideEndTimingSeconds ) { |
|
|
var slideEndTiming = slideEndTimingSeconds * 1000; |
|
|
|
|
|
callRevealApi( 'getSlidePastCount', [], function ( currentSlide ) { |
|
|
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 ); |
|
|
} ); |
|
|
} ); |
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
/** |
|
|
* 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 ); |
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
})(); |
|
|
|
|
|
</script> |
|
|
</body> |
|
|
</html>
|
|
|
|
