notes.html 9.6 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="../../plugin/markdown/marked.js"></script>
  147. <script>
  148. (function() {
  149. var notes,
  150. notesValue,
  151. currentState,
  152. currentSlide,
  153. upcomingSlide,
  154. connected = false;
  155. window.addEventListener( 'message', function( event ) {
  156. var data = JSON.parse( event.data );
  157. // Messages sent by the notes plugin inside of the main window
  158. if( data && data.namespace === 'reveal-notes' ) {
  159. if( data.type === 'connect' ) {
  160. handleConnectMessage( data );
  161. }
  162. else if( data.type === 'state' ) {
  163. handleStateMessage( data );
  164. }
  165. }
  166. // Messages sent by the reveal.js inside of the current slide preview
  167. else if( data && data.namespace === 'reveal' ) {
  168. if( /ready/.test( data.eventName ) ) {
  169. // Send a message back to notify that the handshake is complete
  170. window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' );
  171. }
  172. else if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) {
  173. window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ]} ), '*' );
  174. }
  175. }
  176. } );
  177. /**
  178. * Called when the main window is trying to establish a
  179. * connection.
  180. */
  181. function handleConnectMessage( data ) {
  182. if( connected === false ) {
  183. connected = true;
  184. setupIframes( data );
  185. setupKeyboard();
  186. setupNotes();
  187. setupTimer();
  188. }
  189. }
  190. /**
  191. * Called when the main window sends an updated state.
  192. */
  193. function handleStateMessage( data ) {
  194. // Store the most recently set state to avoid circular loops
  195. // applying the same state
  196. currentState = JSON.stringify( data.state );
  197. // No need for updating the notes in case of fragment changes
  198. if ( data.notes ) {
  199. notes.classList.remove( 'hidden' );
  200. if( data.markdown ) {
  201. notesValue.innerHTML = marked( data.notes );
  202. }
  203. else {
  204. notesValue.innerHTML = data.notes;
  205. }
  206. }
  207. else {
  208. notes.classList.add( 'hidden' );
  209. }
  210. // Update the note slides
  211. currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
  212. upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' );
  213. upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' );
  214. }
  215. // Limit to max one state update per X ms
  216. handleStateMessage = debounce( handleStateMessage, 200 );
  217. /**
  218. * Forward keyboard events to the current slide window.
  219. * This enables keyboard events to work even if focus
  220. * isn't set on the current slide iframe.
  221. */
  222. function setupKeyboard() {
  223. document.addEventListener( 'keydown', function( event ) {
  224. currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' );
  225. } );
  226. }
  227. /**
  228. * Creates the preview iframes.
  229. */
  230. function setupIframes( data ) {
  231. var params = [
  232. 'receiver',
  233. 'progress=false',
  234. 'history=false',
  235. 'transition=none',
  236. 'backgroundTransition=none'
  237. ].join( '&' );
  238. var hash = '#/' + data.state.indexh + '/' + data.state.indexv;
  239. var currentURL = data.url + '?' + params + '&postMessageEvents=true' + hash;
  240. var upcomingURL = data.url + '?' + params + '&controls=false' + hash;
  241. currentSlide = document.createElement( 'iframe' );
  242. currentSlide.setAttribute( 'width', 1280 );
  243. currentSlide.setAttribute( 'height', 1024 );
  244. currentSlide.setAttribute( 'src', currentURL );
  245. document.querySelector( '#current-slide' ).appendChild( currentSlide );
  246. upcomingSlide = document.createElement( 'iframe' );
  247. upcomingSlide.setAttribute( 'width', 640 );
  248. upcomingSlide.setAttribute( 'height', 512 );
  249. upcomingSlide.setAttribute( 'src', upcomingURL );
  250. document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide );
  251. }
  252. /**
  253. * Setup the notes UI.
  254. */
  255. function setupNotes() {
  256. notes = document.querySelector( '.speaker-controls-notes' );
  257. notesValue = document.querySelector( '.speaker-controls-notes .value' );
  258. }
  259. /**
  260. * Create the timer and clock and start updating them
  261. * at an interval.
  262. */
  263. function setupTimer() {
  264. var start = new Date(),
  265. timeEl = document.querySelector( '.speaker-controls-time' ),
  266. clockEl = timeEl.querySelector( '.clock-value' ),
  267. hoursEl = timeEl.querySelector( '.hours-value' ),
  268. minutesEl = timeEl.querySelector( '.minutes-value' ),
  269. secondsEl = timeEl.querySelector( '.seconds-value' );
  270. function _updateTimer() {
  271. var diff, hours, minutes, seconds,
  272. now = new Date();
  273. diff = now.getTime() - start.getTime();
  274. hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
  275. minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
  276. seconds = Math.floor( ( diff / 1000 ) % 60 );
  277. clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } );
  278. hoursEl.innerHTML = zeroPadInteger( hours );
  279. hoursEl.className = hours > 0 ? '' : 'mute';
  280. minutesEl.innerHTML = ':' + zeroPadInteger( minutes );
  281. minutesEl.className = minutes > 0 ? '' : 'mute';
  282. secondsEl.innerHTML = ':' + zeroPadInteger( seconds );
  283. }
  284. // Update once directly
  285. _updateTimer();
  286. // Then update every second
  287. setInterval( _updateTimer, 1000 );
  288. timeEl.addEventListener( 'click', function() {
  289. start = new Date();
  290. _updateTimer();
  291. return false;
  292. } );
  293. }
  294. function zeroPadInteger( num ) {
  295. var str = '00' + parseInt( num );
  296. return str.substring( str.length - 2 );
  297. }
  298. /**
  299. * Limits the frequency at which a function can be called.
  300. */
  301. function debounce( fn, ms ) {
  302. var lastTime = 0,
  303. timeout;
  304. return function() {
  305. var args = arguments;
  306. var context = this;
  307. clearTimeout( timeout );
  308. var timeSinceLastCall = Date.now() - lastTime;
  309. if( timeSinceLastCall > ms ) {
  310. fn.apply( context, args );
  311. lastTime = Date.now();
  312. }
  313. else {
  314. timeout = setTimeout( function() {
  315. fn.apply( context, args );
  316. lastTime = Date.now();
  317. }, ms - timeSinceLastCall );
  318. }
  319. }
  320. }
  321. })();
  322. </script>
  323. </body>
  324. </html>