notes.html 8.8 KB

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  1. <!doctype html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8">
  5. <title>reveal.js - Slide Notes</title>
  6. <style>
  7. body {
  8. font-family: Helvetica;
  9. }
  10. #current-slide,
  11. #upcoming-slide,
  12. #speaker-controls {
  13. padding: 6px;
  14. box-sizing: border-box;
  15. -moz-box-sizing: border-box;
  16. }
  17. #current-slide iframe,
  18. #upcoming-slide iframe {
  19. width: 100%;
  20. height: 100%;
  21. border: 1px solid #ddd;
  22. }
  23. #current-slide .label,
  24. #upcoming-slide .label {
  25. position: absolute;
  26. top: 10px;
  27. left: 10px;
  28. font-weight: bold;
  29. font-size: 14px;
  30. z-index: 2;
  31. color: rgba( 255, 255, 255, 0.9 );
  32. }
  33. #current-slide {
  34. position: absolute;
  35. width: 65%;
  36. height: 100%;
  37. top: 0;
  38. left: 0;
  39. padding-right: 0;
  40. }
  41. #upcoming-slide {
  42. position: absolute;
  43. width: 35%;
  44. height: 40%;
  45. right: 0;
  46. top: 0;
  47. }
  48. #speaker-controls {
  49. position: absolute;
  50. top: 40%;
  51. right: 0;
  52. width: 35%;
  53. height: 60%;
  54. font-size: 18px;
  55. }
  56. .speaker-controls-time.hidden,
  57. .speaker-controls-notes.hidden {
  58. display: none;
  59. }
  60. .speaker-controls-time .label,
  61. .speaker-controls-notes .label {
  62. text-transform: uppercase;
  63. font-weight: normal;
  64. font-size: 0.66em;
  65. color: #666;
  66. margin: 0;
  67. }
  68. .speaker-controls-time {
  69. border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
  70. margin-bottom: 10px;
  71. padding: 10px 16px;
  72. padding-bottom: 20px;
  73. cursor: pointer;
  74. }
  75. .speaker-controls-time .reset-button {
  76. opacity: 0;
  77. float: right;
  78. color: #666;
  79. text-decoration: none;
  80. }
  81. .speaker-controls-time:hover .reset-button {
  82. opacity: 1;
  83. }
  84. .speaker-controls-time .timer,
  85. .speaker-controls-time .clock {
  86. width: 50%;
  87. font-size: 1.9em;
  88. }
  89. .speaker-controls-time .timer {
  90. float: left;
  91. }
  92. .speaker-controls-time .clock {
  93. float: right;
  94. text-align: right;
  95. }
  96. .speaker-controls-time span.mute {
  97. color: #bbb;
  98. }
  99. .speaker-controls-notes {
  100. padding: 10px 16px;
  101. }
  102. .speaker-controls-notes .value {
  103. margin-top: 5px;
  104. line-height: 1.4;
  105. font-size: 1.2em;
  106. }
  107. .clear {
  108. clear: both;
  109. }
  110. @media screen and (max-width: 1080px) {
  111. #speaker-controls {
  112. font-size: 16px;
  113. }
  114. }
  115. @media screen and (max-width: 900px) {
  116. #speaker-controls {
  117. font-size: 14px;
  118. }
  119. }
  120. @media screen and (max-width: 800px) {
  121. #speaker-controls {
  122. font-size: 12px;
  123. }
  124. }
  125. </style>
  126. </head>
  127. <body>
  128. <div id="current-slide"></div>
  129. <div id="upcoming-slide"><span class="label">UPCOMING:</span></div>
  130. <div id="speaker-controls">
  131. <div class="speaker-controls-time">
  132. <h4 class="label">Time <span class="reset-button">Click to Reset</span></h4>
  133. <div class="clock">
  134. <span class="clock-value">0:00 AM</span>
  135. </div>
  136. <div class="timer">
  137. <span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span>
  138. </div>
  139. <div class="clear"></div>
  140. </div>
  141. <div class="speaker-controls-notes hidden">
  142. <h4 class="label">Notes</h4>
  143. <div class="value"></div>
  144. </div>
  145. </div>
  146. <script src="/socket.io/socket.io.js"></script>
  147. <script src="/plugin/markdown/marked.js"></script>
  148. <script>
  149. (function() {
  150. var notes,
  151. notesValue,
  152. currentState,
  153. currentSlide,
  154. upcomingSlide,
  155. connected = false;
  156. var socket = io.connect( window.location.origin ),
  157. socketId = '{{socketId}}';
  158. socket.on( 'statechanged', function( data ) {
  159. // ignore data from sockets that aren't ours
  160. if( data.socketId !== socketId ) { return; }
  161. if( connected === false ) {
  162. connected = true;
  163. setupIframes( data );
  164. setupKeyboard();
  165. setupNotes();
  166. setupTimer();
  167. }
  168. handleStateMessage( data );
  169. } );
  170. window.addEventListener( 'message', function( event ) {
  171. var data = JSON.parse( event.data );
  172. if( data && data.namespace === 'reveal' ) {
  173. if( /ready/.test( data.eventName ) ) {
  174. socket.emit( 'connect', { socketId: socketId } );
  175. }
  176. }
  177. } );
  178. /**
  179. * Called when the main window sends an updated state.
  180. */
  181. function handleStateMessage( data ) {
  182. // Store the most recently set state to avoid circular loops
  183. // applying the same state
  184. currentState = JSON.stringify( data.state );
  185. // No need for updating the notes in case of fragment changes
  186. if ( data.notes ) {
  187. notes.classList.remove( 'hidden' );
  188. if( data.markdown ) {
  189. notesValue.innerHTML = marked( data.notes );
  190. }
  191. else {
  192. notesValue.innerHTML = data.notes;
  193. }
  194. }
  195. else {
  196. notes.classList.add( 'hidden' );
  197. }
  198. // Update the note slides
  199. currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
  200. upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
  201. upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
  202. }
  203. // Limit to max one state update per X ms
  204. handleStateMessage = debounce( handleStateMessage, 200 );
  205. /**
  206. * Forward keyboard events to the current slide window.
  207. * This enables keyboard events to work even if focus
  208. * isn't set on the current slide iframe.
  209. */
  210. function setupKeyboard() {
  211. document.addEventListener( 'keydown', function( event ) {
  212. currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
  213. } );
  214. }
  215. /**
  216. * Creates the preview iframes.
  217. */
  218. function setupIframes( data ) {
  219. var params = [
  220. 'receiver',
  221. 'progress=false',
  222. 'history=false',
  223. 'transition=none',
  224. 'backgroundTransition=none'
  225. ].join( '&' );
  226. var hash = '#/' + data.state.indexh + '/' + data.state.indexv;
  227. var currentURL = '/?' + params + '&postMessageEvents=true' + hash;
  228. var upcomingURL = '/?' + params + '&controls=false' + hash;
  229. currentSlide = document.createElement( 'iframe' );
  230. currentSlide.setAttribute( 'width', 1280 );
  231. currentSlide.setAttribute( 'height', 1024 );
  232. currentSlide.setAttribute( 'src', currentURL );
  233. document.querySelector( '#current-slide' ).appendChild( currentSlide );
  234. upcomingSlide = document.createElement( 'iframe' );
  235. upcomingSlide.setAttribute( 'width', 640 );
  236. upcomingSlide.setAttribute( 'height', 512 );
  237. upcomingSlide.setAttribute( 'src', upcomingURL );
  238. document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
  239. }
  240. /**
  241. * Setup the notes UI.
  242. */
  243. function setupNotes() {
  244. notes = document.querySelector( '.speaker-controls-notes' );
  245. notesValue = document.querySelector( '.speaker-controls-notes .value' );
  246. }
  247. /**
  248. * Create the timer and clock and start updating them
  249. * at an interval.
  250. */
  251. function setupTimer() {
  252. var start = new Date(),
  253. timeEl = document.querySelector( '.speaker-controls-time' ),
  254. clockEl = timeEl.querySelector( '.clock-value' ),
  255. hoursEl = timeEl.querySelector( '.hours-value' ),
  256. minutesEl = timeEl.querySelector( '.minutes-value' ),
  257. secondsEl = timeEl.querySelector( '.seconds-value' );
  258. function _updateTimer() {
  259. var diff, hours, minutes, seconds,
  260. now = new Date();
  261. diff = now.getTime() - start.getTime();
  262. hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
  263. minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
  264. seconds = Math.floor( ( diff / 1000 ) % 60 );
  265. clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
  266. hoursEl.innerHTML = zeroPadInteger( hours );
  267. hoursEl.className = hours > 0 ? '' : 'mute';
  268. minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
  269. minutesEl.className = minutes > 0 ? '' : 'mute';
  270. secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
  271. }
  272. // Update once directly
  273. _updateTimer();
  274. // Then update every second
  275. setInterval( _updateTimer, 1000 );
  276. timeEl.addEventListener( 'click', function() {
  277. start = new Date();
  278. _updateTimer();
  279. return false;
  280. } );
  281. }
  282. function zeroPadInteger( num ) {
  283. var str = '00' + parseInt( num );
  284. return str.substring( str.length - 2 );
  285. }
  286. /**
  287. * Limits the frequency at which a function can be called.
  288. */
  289. function debounce( fn, ms ) {
  290. var lastTime = 0,
  291. timeout;
  292. return function() {
  293. var args = arguments;
  294. var context = this;
  295. clearTimeout( timeout );
  296. var timeSinceLastCall = Date.now() - lastTime;
  297. if( timeSinceLastCall > ms ) {
  298. fn.apply( context, args );
  299. lastTime = Date.now();
  300. }
  301. else {
  302. timeout = setTimeout( function() {
  303. fn.apply( context, args );
  304. lastTime = Date.now();
  305. }, ms - timeSinceLastCall );
  306. }
  307. }
  308. }
  309. })();
  310. </script>
  311. </body>
  312. </html>