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- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>reveal.js - Slide Notes</title>
- <style>
- body {
- font-family: Helvetica;
- font-size: 18px;
- }
- #current-slide,
- #upcoming-slide,
- #speaker-controls {
- padding: 6px;
- box-sizing: border-box;
- -moz-box-sizing: border-box;
- }
- #current-slide iframe,
- #upcoming-slide iframe {
- width: 100%;
- height: 100%;
- border: 1px solid #ddd;
- }
- #current-slide .label,
- #upcoming-slide .label {
- position: absolute;
- top: 10px;
- left: 10px;
- z-index: 2;
- }
- #connection-status {
- position: absolute;
- top: 0;
- left: 0;
- width: 100%;
- height: 100%;
- z-index: 20;
- padding: 30% 20% 20% 20%;
- font-size: 18px;
- color: #222;
- background: #fff;
- text-align: center;
- box-sizing: border-box;
- line-height: 1.4;
- }
- .overlay-element {
- height: 34px;
- line-height: 34px;
- padding: 0 10px;
- text-shadow: none;
- background: rgba( 220, 220, 220, 0.8 );
- color: #222;
- font-size: 14px;
- }
- .overlay-element.interactive:hover {
- background: rgba( 220, 220, 220, 1 );
- }
- #current-slide {
- position: absolute;
- width: 60%;
- height: 100%;
- top: 0;
- left: 0;
- padding-right: 0;
- }
- #upcoming-slide {
- position: absolute;
- width: 40%;
- height: 40%;
- right: 0;
- top: 0;
- }
- /* Speaker controls */
- #speaker-controls {
- position: absolute;
- top: 40%;
- right: 0;
- width: 40%;
- height: 60%;
- overflow: auto;
- font-size: 18px;
- }
- .speaker-controls-time.hidden,
- .speaker-controls-notes.hidden {
- display: none;
- }
- .speaker-controls-time .label,
- .speaker-controls-pace .label,
- .speaker-controls-notes .label {
- text-transform: uppercase;
- font-weight: normal;
- font-size: 0.66em;
- color: #666;
- margin: 0;
- }
- .speaker-controls-time, .speaker-controls-pace {
- border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
- margin-bottom: 10px;
- padding: 10px 16px;
- padding-bottom: 20px;
- cursor: pointer;
- }
- .speaker-controls-time .reset-button {
- opacity: 0;
- float: right;
- color: #666;
- text-decoration: none;
- }
- .speaker-controls-time:hover .reset-button {
- opacity: 1;
- }
- .speaker-controls-time .timer,
- .speaker-controls-time .clock {
- width: 50%;
- }
- .speaker-controls-time .timer,
- .speaker-controls-time .clock,
- .speaker-controls-time .pacing .hours-value,
- .speaker-controls-time .pacing .minutes-value,
- .speaker-controls-time .pacing .seconds-value {
- font-size: 1.9em;
- }
- .speaker-controls-time .timer {
- float: left;
- }
- .speaker-controls-time .clock {
- float: right;
- text-align: right;
- }
- .speaker-controls-time span.mute {
- opacity: 0.3;
- }
- .speaker-controls-time .pacing-title {
- margin-top: 5px;
- }
- .speaker-controls-time .pacing.ahead {
- color: blue;
- }
- .speaker-controls-time .pacing.on-track {
- color: green;
- }
- .speaker-controls-time .pacing.behind {
- color: red;
- }
- .speaker-controls-notes {
- padding: 10px 16px;
- }
- .speaker-controls-notes .value {
- margin-top: 5px;
- line-height: 1.4;
- font-size: 1.2em;
- }
- /* Layout selector */
- #speaker-layout {
- position: absolute;
- top: 10px;
- right: 10px;
- color: #222;
- z-index: 10;
- }
- #speaker-layout select {
- position: absolute;
- width: 100%;
- height: 100%;
- top: 0;
- left: 0;
- border: 0;
- box-shadow: 0;
- cursor: pointer;
- opacity: 0;
- font-size: 1em;
- background-color: transparent;
- -moz-appearance: none;
- -webkit-appearance: none;
- -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
- }
- #speaker-layout select:focus {
- outline: none;
- box-shadow: none;
- }
- .clear {
- clear: both;
- }
- /* Speaker layout: Wide */
- body[data-speaker-layout="wide"] #current-slide,
- body[data-speaker-layout="wide"] #upcoming-slide {
- width: 50%;
- height: 45%;
- padding: 6px;
- }
- body[data-speaker-layout="wide"] #current-slide {
- top: 0;
- left: 0;
- }
- body[data-speaker-layout="wide"] #upcoming-slide {
- top: 0;
- left: 50%;
- }
- body[data-speaker-layout="wide"] #speaker-controls {
- top: 45%;
- left: 0;
- width: 100%;
- height: 50%;
- font-size: 1.25em;
- }
- /* Speaker layout: Tall */
- body[data-speaker-layout="tall"] #current-slide,
- body[data-speaker-layout="tall"] #upcoming-slide {
- width: 45%;
- height: 50%;
- padding: 6px;
- }
- body[data-speaker-layout="tall"] #current-slide {
- top: 0;
- left: 0;
- }
- body[data-speaker-layout="tall"] #upcoming-slide {
- top: 50%;
- left: 0;
- }
- body[data-speaker-layout="tall"] #speaker-controls {
- padding-top: 40px;
- top: 0;
- left: 45%;
- width: 55%;
- height: 100%;
- font-size: 1.25em;
- }
- /* Speaker layout: Notes only */
- body[data-speaker-layout="notes-only"] #current-slide,
- body[data-speaker-layout="notes-only"] #upcoming-slide {
- display: none;
- }
- body[data-speaker-layout="notes-only"] #speaker-controls {
- padding-top: 40px;
- top: 0;
- left: 0;
- width: 100%;
- height: 100%;
- font-size: 1.25em;
- }
- @media screen and (max-width: 1080px) {
- body[data-speaker-layout="default"] #speaker-controls {
- font-size: 16px;
- }
- }
- @media screen and (max-width: 900px) {
- body[data-speaker-layout="default"] #speaker-controls {
- font-size: 14px;
- }
- }
- @media screen and (max-width: 800px) {
- body[data-speaker-layout="default"] #speaker-controls {
- font-size: 12px;
- }
- }
- </style>
- </head>
- <body>
- <div id="connection-status">Loading speaker view...</div>
- <div id="current-slide"></div>
- <div id="upcoming-slide"><span class="overlay-element label">Upcoming</span></div>
- <div id="speaker-controls">
- <div class="speaker-controls-time">
- <h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
- <div class="clock">
- <span class="clock-value">0:00 AM</span>
- </div>
- <div class="timer">
- <span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
- </div>
- <div class="clear"></div>
- <h4 class="label pacing-title" style="display: none">Pacing – Time to finish current slide</h4>
- <div class="pacing" style="display: none">
- <span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
- </div>
- </div>
- <div class="speaker-controls-notes hidden">
- <h4 class="label">Notes</h4>
- <div class="value"></div>
- </div>
- </div>
- <div id="speaker-layout" class="overlay-element interactive">
- <span class="speaker-layout-label"></span>
- <select class="speaker-layout-dropdown"></select>
- </div>
- <script src="../../plugin/markdown/marked.js"></script>
- <script>
- (function() {
- var notes,
- notesValue,
- currentState,
- currentSlide,
- upcomingSlide,
- layoutLabel,
- layoutDropdown,
- pendingCalls = {},
- lastRevealApiCallId = 0,
- connected = false;
- var SPEAKER_LAYOUTS = {
- 'default': 'Default',
- 'wide': 'Wide',
- 'tall': 'Tall',
- 'notes-only': 'Notes only'
- };
- setupLayout();
- var connectionStatus = document.querySelector( '#connection-status' );
- var connectionTimeout = setTimeout( function() {
- connectionStatus.innerHTML = 'Error connecting to main window.<br>Please try closing and reopening the speaker view.';
- }, 5000 );
- window.addEventListener( 'message', function( event ) {
- clearTimeout( connectionTimeout );
- connectionStatus.style.display = 'none';
- var data = JSON.parse( event.data );
- // The overview mode is only useful to the reveal.js instance
- // where navigation occurs so we don't sync it
- if( data.state ) delete data.state.overview;
- // Messages sent by the notes plugin inside of the main window
- if( data && data.namespace === 'reveal-notes' ) {
- if( data.type === 'connect' ) {
- handleConnectMessage( data );
- }
- else if( data.type === 'state' ) {
- handleStateMessage( data );
- }
- else if( data.type === 'return' ) {
- pendingCalls[data.callId](data.result);
- delete pendingCalls[data.callId];
- }
- }
- // Messages sent by the reveal.js inside of the current slide preview
- else if( data && data.namespace === 'reveal' ) {
- if( /ready/.test( data.eventName ) ) {
- // Send a message back to notify that the handshake is complete
- window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' );
- }
- else if( /slidechanged|fragmentshown|fragmenthidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
- window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ]} ), '*' );
- }
- }
- } );
- /**
- * Asynchronously calls the Reveal.js API of the main frame.
- */
- function callRevealApi( methodName, methodArguments, callback ) {
- var callId = ++lastRevealApiCallId;
- pendingCalls[callId] = callback;
- window.opener.postMessage( JSON.stringify( {
- namespace: 'reveal-notes',
- type: 'call',
- callId: callId,
- methodName: methodName,
- arguments: methodArguments
- } ), '*' );
- }
- /**
- * 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( 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>
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