<!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; } .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-notes .label { text-transform: uppercase; font-weight: normal; font-size: 0.66em; color: #666; margin: 0; } .speaker-controls-time { 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%; font-size: 1.9em; } .speaker-controls-time .timer { float: left; } .speaker-controls-time .clock { float: right; text-align: right; } .speaker-controls-time span.mute { color: #bbb; } .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; } </style> </head> <body> <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> </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="/socket.io/socket.io.js"></script> <script src="/plugin/markdown/marked.js"></script> <script> (function() { var notes, notesValue, currentState, currentSlide, upcomingSlide, layoutLabel, layoutDropdown, connected = false; var socket = io.connect( window.location.origin ), socketId = '{{socketId}}'; var SPEAKER_LAYOUTS = { 'default': 'Default', 'wide': 'Wide', 'tall': 'Tall', 'notes-only': 'Notes only' }; socket.on( 'statechanged', function( data ) { // ignore data from sockets that aren't ours if( data.socketId !== socketId ) { return; } if( connected === false ) { connected = true; setupKeyboard(); setupNotes(); setupTimer(); } handleStateMessage( data ); } ); setupLayout(); // Load our presentation iframes setupIframes(); // Once the iframes have loaded, emit a signal saying there's // a new subscriber which will trigger a 'statechanged' // message to be sent back window.addEventListener( 'message', function( event ) { var data = JSON.parse( event.data ); if( data && data.namespace === 'reveal' ) { if( /ready/.test( data.eventName ) ) { socket.emit( 'new-subscriber', { socketId: socketId } ); } } // Messages sent by reveal.js inside of the current slide preview if( data && data.namespace === 'reveal' ) { if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) { socket.emit( 'statechanged-speaker', { state: data.state } ); } } } ); /** * 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' ); 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. */ function setupKeyboard() { document.addEventListener( 'keydown', function( event ) { currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' ); } ); } /** * Creates the preview iframes. */ function setupIframes() { var params = [ 'receiver', 'progress=false', 'history=false', 'transition=none', 'backgroundTransition=none' ].join( '&' ); var currentURL = '/?' + params + '&postMessageEvents=true'; var upcomingURL = '/?' + params + '&controls=false'; 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' ); } /** * 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' ); function _updateTimer() { var diff, hours, minutes, seconds, now = new Date(); diff = now.getTime() - start.getTime(); hours = Math.floor( diff / ( 1000 * 60 * 60 ) ); minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 ); seconds = Math.floor( ( diff / 1000 ) % 60 ); clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } ); hoursEl.innerHTML = zeroPadInteger( hours ); hoursEl.className = hours > 0 ? '' : 'mute'; minutesEl.innerHTML = ':' + zeroPadInteger( minutes ); minutesEl.className = minutes > 0 ? '' : 'mute'; secondsEl.innerHTML = ':' + zeroPadInteger( seconds ); } // Update once directly _updateTimer(); // Then update every second setInterval( _updateTimer, 1000 ); timeEl.addEventListener( 'click', function() { start = new Date(); _updateTimer(); return false; } ); } /** * Sets up the speaker view layout and layout selector. */ function setupLayout() { layoutDropdown = document.querySelector( '.speaker-layout-dropdown' ); layoutLabel = document.querySelector( '.speaker-layout-label' ); // Render the list of available layouts for( var id in SPEAKER_LAYOUTS ) { var option = document.createElement( 'option' ); option.setAttribute( 'value', id ); option.textContent = SPEAKER_LAYOUTS[ id ]; layoutDropdown.appendChild( option ); } // Monitor the dropdown for changes layoutDropdown.addEventListener( 'change', function( event ) { setLayout( layoutDropdown.value ); }, false ); // Restore any currently persisted layout setLayout( getLayout() ); } /** * Sets a new speaker view layout. The layout is persisted * in local storage. */ function setLayout( value ) { var title = SPEAKER_LAYOUTS[ value ]; layoutLabel.innerHTML = 'Layout' + ( title ? ( ': ' + title ) : '' ); layoutDropdown.value = value; document.body.setAttribute( 'data-speaker-layout', value ); // Persist locally if( window.localStorage ) { window.localStorage.setItem( 'reveal-speaker-layout', value ); } } /** * Returns the ID of the most recently set speaker layout * or our default layout if none has been set. */ function getLayout() { if( window.localStorage ) { var layout = window.localStorage.getItem( 'reveal-speaker-layout' ); if( layout ) { return layout; } } // Default to the first record in the layouts hash for( var id in SPEAKER_LAYOUTS ) { return id; } } function zeroPadInteger( num ) { var str = '00' + parseInt( num ); return str.substring( str.length - 2 ); } /** * Limits the frequency at which a function can be called. */ function debounce( fn, ms ) { var lastTime = 0, timeout; return function() { var args = arguments; var context = this; clearTimeout( timeout ); var timeSinceLastCall = Date.now() - lastTime; if( timeSinceLastCall > ms ) { fn.apply( context, args ); lastTime = Date.now(); } else { timeout = setTimeout( function() { fn.apply( context, args ); lastTime = Date.now(); }, ms - timeSinceLastCall ); } } } })(); </script> </body> </html>