JJ Allaire | efa6ad4 | 2016-01-30 13:12:05 -0500 | [diff] [blame] | 1 | <!doctype html> |
| 2 | <html lang="en"> |
| 3 | <head> |
| 4 | <meta charset="utf-8"> |
| 5 | |
| 6 | <title>reveal.js - Slide Notes</title> |
| 7 | |
| 8 | <style> |
| 9 | body { |
| 10 | font-family: Helvetica; |
| 11 | } |
| 12 | |
| 13 | #current-slide, |
| 14 | #upcoming-slide, |
| 15 | #speaker-controls { |
| 16 | padding: 6px; |
| 17 | box-sizing: border-box; |
| 18 | -moz-box-sizing: border-box; |
| 19 | } |
| 20 | |
| 21 | #current-slide iframe, |
| 22 | #upcoming-slide iframe { |
| 23 | width: 100%; |
| 24 | height: 100%; |
| 25 | border: 1px solid #ddd; |
| 26 | } |
| 27 | |
| 28 | #current-slide .label, |
| 29 | #upcoming-slide .label { |
| 30 | position: absolute; |
| 31 | top: 10px; |
| 32 | left: 10px; |
| 33 | font-weight: bold; |
| 34 | font-size: 14px; |
| 35 | z-index: 2; |
| 36 | color: rgba( 255, 255, 255, 0.9 ); |
| 37 | } |
| 38 | |
| 39 | #current-slide { |
| 40 | position: absolute; |
| 41 | width: 65%; |
| 42 | height: 100%; |
| 43 | top: 0; |
| 44 | left: 0; |
| 45 | padding-right: 0; |
| 46 | } |
| 47 | |
| 48 | #upcoming-slide { |
| 49 | position: absolute; |
| 50 | width: 35%; |
| 51 | height: 40%; |
| 52 | right: 0; |
| 53 | top: 0; |
| 54 | } |
| 55 | |
| 56 | #speaker-controls { |
| 57 | position: absolute; |
| 58 | top: 40%; |
| 59 | right: 0; |
| 60 | width: 35%; |
| 61 | height: 60%; |
| 62 | overflow: auto; |
| 63 | |
| 64 | font-size: 18px; |
| 65 | } |
| 66 | |
| 67 | .speaker-controls-time.hidden, |
| 68 | .speaker-controls-notes.hidden { |
| 69 | display: none; |
| 70 | } |
| 71 | |
| 72 | .speaker-controls-time .label, |
| 73 | .speaker-controls-notes .label { |
| 74 | text-transform: uppercase; |
| 75 | font-weight: normal; |
| 76 | font-size: 0.66em; |
| 77 | color: #666; |
| 78 | margin: 0; |
| 79 | } |
| 80 | |
| 81 | .speaker-controls-time { |
| 82 | border-bottom: 1px solid rgba( 200, 200, 200, 0.5 ); |
| 83 | margin-bottom: 10px; |
| 84 | padding: 10px 16px; |
| 85 | padding-bottom: 20px; |
| 86 | cursor: pointer; |
| 87 | } |
| 88 | |
| 89 | .speaker-controls-time .reset-button { |
| 90 | opacity: 0; |
| 91 | float: right; |
| 92 | color: #666; |
| 93 | text-decoration: none; |
| 94 | } |
| 95 | .speaker-controls-time:hover .reset-button { |
| 96 | opacity: 1; |
| 97 | } |
| 98 | |
| 99 | .speaker-controls-time .timer, |
| 100 | .speaker-controls-time .clock { |
| 101 | width: 50%; |
| 102 | font-size: 1.9em; |
| 103 | } |
| 104 | |
| 105 | .speaker-controls-time .timer { |
| 106 | float: left; |
| 107 | } |
| 108 | |
| 109 | .speaker-controls-time .clock { |
| 110 | float: right; |
| 111 | text-align: right; |
| 112 | } |
| 113 | |
| 114 | .speaker-controls-time span.mute { |
| 115 | color: #bbb; |
| 116 | } |
| 117 | |
| 118 | .speaker-controls-notes { |
| 119 | padding: 10px 16px; |
| 120 | } |
| 121 | |
| 122 | .speaker-controls-notes .value { |
| 123 | margin-top: 5px; |
| 124 | line-height: 1.4; |
| 125 | font-size: 1.2em; |
| 126 | } |
| 127 | |
| 128 | .clear { |
| 129 | clear: both; |
| 130 | } |
| 131 | |
| 132 | @media screen and (max-width: 1080px) { |
| 133 | #speaker-controls { |
| 134 | font-size: 16px; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | @media screen and (max-width: 900px) { |
| 139 | #speaker-controls { |
| 140 | font-size: 14px; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | @media screen and (max-width: 800px) { |
| 145 | #speaker-controls { |
| 146 | font-size: 12px; |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | </style> |
| 151 | </head> |
| 152 | |
| 153 | <body> |
| 154 | |
| 155 | <div id="current-slide"></div> |
| 156 | <div id="upcoming-slide"><span class="label">UPCOMING:</span></div> |
| 157 | <div id="speaker-controls"> |
| 158 | <div class="speaker-controls-time"> |
| 159 | <h4 class="label">Time <span class="reset-button">Click to Reset</span></h4> |
| 160 | <div class="clock"> |
| 161 | <span class="clock-value">0:00 AM</span> |
| 162 | </div> |
| 163 | <div class="timer"> |
| 164 | <span class="hours-value">00</span><span class="minutes-value">:00</span><span class="seconds-value">:00</span> |
| 165 | </div> |
| 166 | <div class="clear"></div> |
| 167 | </div> |
| 168 | |
| 169 | <div class="speaker-controls-notes hidden"> |
| 170 | <h4 class="label">Notes</h4> |
| 171 | <div class="value"></div> |
| 172 | </div> |
| 173 | </div> |
| 174 | |
| 175 | <script src="../../plugin/markdown/marked.js"></script> |
| 176 | <script> |
| 177 | |
| 178 | (function() { |
| 179 | |
| 180 | var notes, |
| 181 | notesValue, |
| 182 | currentState, |
| 183 | currentSlide, |
| 184 | upcomingSlide, |
| 185 | connected = false; |
| 186 | |
| 187 | window.addEventListener( 'message', function( event ) { |
| 188 | |
| 189 | var data = JSON.parse( event.data ); |
| 190 | |
| 191 | // Messages sent by the notes plugin inside of the main window |
| 192 | if( data && data.namespace === 'reveal-notes' ) { |
| 193 | if( data.type === 'connect' ) { |
| 194 | handleConnectMessage( data ); |
| 195 | } |
| 196 | else if( data.type === 'state' ) { |
| 197 | handleStateMessage( data ); |
| 198 | } |
| 199 | } |
| 200 | // Messages sent by the reveal.js inside of the current slide preview |
| 201 | else if( data && data.namespace === 'reveal' ) { |
| 202 | if( /ready/.test( data.eventName ) ) { |
| 203 | // Send a message back to notify that the handshake is complete |
| 204 | window.opener.postMessage( JSON.stringify({ namespace: 'reveal-notes', type: 'connected'} ), '*' ); |
| 205 | } |
| 206 | else if( /slidechanged|fragmentshown|fragmenthidden|overviewshown|overviewhidden|paused|resumed/.test( data.eventName ) && currentState !== JSON.stringify( data.state ) ) { |
| 207 | window.opener.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ]} ), '*' ); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | } ); |
| 212 | |
| 213 | /** |
| 214 | * Called when the main window is trying to establish a |
| 215 | * connection. |
| 216 | */ |
| 217 | function handleConnectMessage( data ) { |
| 218 | |
| 219 | if( connected === false ) { |
| 220 | connected = true; |
| 221 | |
| 222 | setupIframes( data ); |
| 223 | setupKeyboard(); |
| 224 | setupNotes(); |
| 225 | setupTimer(); |
| 226 | } |
| 227 | |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Called when the main window sends an updated state. |
| 232 | */ |
| 233 | function handleStateMessage( data ) { |
| 234 | |
| 235 | // Store the most recently set state to avoid circular loops |
| 236 | // applying the same state |
| 237 | currentState = JSON.stringify( data.state ); |
| 238 | |
| 239 | // No need for updating the notes in case of fragment changes |
| 240 | if ( data.notes ) { |
| 241 | notes.classList.remove( 'hidden' ); |
| 242 | notesValue.style.whiteSpace = data.whitespace; |
| 243 | if( data.markdown ) { |
| 244 | notesValue.innerHTML = marked( data.notes ); |
| 245 | } |
| 246 | else { |
| 247 | notesValue.innerHTML = data.notes; |
| 248 | } |
| 249 | } |
| 250 | else { |
| 251 | notes.classList.add( 'hidden' ); |
| 252 | } |
| 253 | |
| 254 | // Update the note slides |
| 255 | currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' ); |
| 256 | upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'setState', args: [ data.state ] }), '*' ); |
| 257 | upcomingSlide.contentWindow.postMessage( JSON.stringify({ method: 'next' }), '*' ); |
| 258 | |
| 259 | } |
| 260 | |
| 261 | // Limit to max one state update per X ms |
| 262 | handleStateMessage = debounce( handleStateMessage, 200 ); |
| 263 | |
| 264 | /** |
| 265 | * Forward keyboard events to the current slide window. |
| 266 | * This enables keyboard events to work even if focus |
| 267 | * isn't set on the current slide iframe. |
| 268 | */ |
| 269 | function setupKeyboard() { |
| 270 | |
| 271 | document.addEventListener( 'keydown', function( event ) { |
| 272 | currentSlide.contentWindow.postMessage( JSON.stringify({ method: 'triggerKey', args: [ event.keyCode ] }), '*' ); |
| 273 | } ); |
| 274 | |
| 275 | } |
| 276 | |
| 277 | /** |
| 278 | * Creates the preview iframes. |
| 279 | */ |
| 280 | function setupIframes( data ) { |
| 281 | |
| 282 | var params = [ |
| 283 | 'receiver', |
| 284 | 'progress=false', |
| 285 | 'history=false', |
| 286 | 'transition=none', |
| 287 | 'autoSlide=0', |
| 288 | 'backgroundTransition=none' |
| 289 | ].join( '&' ); |
| 290 | |
| 291 | var hash = '#/' + data.state.indexh + '/' + data.state.indexv; |
| 292 | var currentURL = data.url + '?' + params + '&postMessageEvents=true' + hash; |
| 293 | var upcomingURL = data.url + '?' + params + '&controls=false' + hash; |
| 294 | |
| 295 | currentSlide = document.createElement( 'iframe' ); |
| 296 | currentSlide.setAttribute( 'width', 1280 ); |
| 297 | currentSlide.setAttribute( 'height', 1024 ); |
| 298 | currentSlide.setAttribute( 'src', currentURL ); |
| 299 | document.querySelector( '#current-slide' ).appendChild( currentSlide ); |
| 300 | |
| 301 | upcomingSlide = document.createElement( 'iframe' ); |
| 302 | upcomingSlide.setAttribute( 'width', 640 ); |
| 303 | upcomingSlide.setAttribute( 'height', 512 ); |
| 304 | upcomingSlide.setAttribute( 'src', upcomingURL ); |
| 305 | document.querySelector( '#upcoming-slide' ).appendChild( upcomingSlide ); |
| 306 | |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Setup the notes UI. |
| 311 | */ |
| 312 | function setupNotes() { |
| 313 | |
| 314 | notes = document.querySelector( '.speaker-controls-notes' ); |
| 315 | notesValue = document.querySelector( '.speaker-controls-notes .value' ); |
| 316 | |
| 317 | } |
| 318 | |
| 319 | /** |
| 320 | * Create the timer and clock and start updating them |
| 321 | * at an interval. |
| 322 | */ |
| 323 | function setupTimer() { |
| 324 | |
| 325 | var start = new Date(), |
| 326 | timeEl = document.querySelector( '.speaker-controls-time' ), |
| 327 | clockEl = timeEl.querySelector( '.clock-value' ), |
| 328 | hoursEl = timeEl.querySelector( '.hours-value' ), |
| 329 | minutesEl = timeEl.querySelector( '.minutes-value' ), |
| 330 | secondsEl = timeEl.querySelector( '.seconds-value' ); |
| 331 | |
| 332 | function _updateTimer() { |
| 333 | |
| 334 | var diff, hours, minutes, seconds, |
| 335 | now = new Date(); |
| 336 | |
| 337 | diff = now.getTime() - start.getTime(); |
| 338 | hours = Math.floor( diff / ( 1000 * 60 * 60 ) ); |
| 339 | minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 ); |
| 340 | seconds = Math.floor( ( diff / 1000 ) % 60 ); |
| 341 | |
| 342 | clockEl.innerHTML = now.toLocaleTimeString( 'en-US', { hour12: true, hour: '2-digit', minute:'2-digit' } ); |
| 343 | hoursEl.innerHTML = zeroPadInteger( hours ); |
| 344 | hoursEl.className = hours > 0 ? '' : 'mute'; |
| 345 | minutesEl.innerHTML = ':' + zeroPadInteger( minutes ); |
| 346 | minutesEl.className = minutes > 0 ? '' : 'mute'; |
| 347 | secondsEl.innerHTML = ':' + zeroPadInteger( seconds ); |
| 348 | |
| 349 | } |
| 350 | |
| 351 | // Update once directly |
| 352 | _updateTimer(); |
| 353 | |
| 354 | // Then update every second |
| 355 | setInterval( _updateTimer, 1000 ); |
| 356 | |
| 357 | timeEl.addEventListener( 'click', function() { |
| 358 | start = new Date(); |
| 359 | _updateTimer(); |
| 360 | return false; |
| 361 | } ); |
| 362 | |
| 363 | } |
| 364 | |
| 365 | function zeroPadInteger( num ) { |
| 366 | |
| 367 | var str = '00' + parseInt( num ); |
| 368 | return str.substring( str.length - 2 ); |
| 369 | |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Limits the frequency at which a function can be called. |
| 374 | */ |
| 375 | function debounce( fn, ms ) { |
| 376 | |
| 377 | var lastTime = 0, |
| 378 | timeout; |
| 379 | |
| 380 | return function() { |
| 381 | |
| 382 | var args = arguments; |
| 383 | var context = this; |
| 384 | |
| 385 | clearTimeout( timeout ); |
| 386 | |
| 387 | var timeSinceLastCall = Date.now() - lastTime; |
| 388 | if( timeSinceLastCall > ms ) { |
| 389 | fn.apply( context, args ); |
| 390 | lastTime = Date.now(); |
| 391 | } |
| 392 | else { |
| 393 | timeout = setTimeout( function() { |
| 394 | fn.apply( context, args ); |
| 395 | lastTime = Date.now(); |
| 396 | }, ms - timeSinceLastCall ); |
| 397 | } |
| 398 | |
| 399 | } |
| 400 | |
| 401 | } |
| 402 | |
| 403 | })(); |
| 404 | |
| 405 | </script> |
| 406 | </body> |
| 407 | </html> |