| commit | author | age | ||
| e78ca8 | 1 | // This file was automatically generated from files in src/ directory. |
| SP | 2 | |
| 3 | /** | |
| 4 | * impress.js | |
| 5 | * | |
| 6 | * impress.js is a presentation tool based on the power of CSS3 transforms and transitions | |
| 7 | * in modern browsers and inspired by the idea behind prezi.com. | |
| 8 | * | |
| 9 | * | |
| 10 | * Copyright 2011-2012 Bartek Szopka (@bartaz), 2016-2018 Henrik Ingo (@henrikingo) | |
| 11 | * | |
| 12 | * Released under the MIT and GPL Licenses. | |
| 13 | * | |
| 14 | * ------------------------------------------------ | |
| 15 | * author: Bartek Szopka, Henrik Ingo | |
| 16 | * version: 1.0.0 | |
| 17 | * url: http://impress.js.org | |
| 18 | * source: http://github.com/impress/impress.js/ | |
| 19 | */ | |
| 20 | ||
| 21 | // You are one of those who like to know how things work inside? | |
| 22 | // Let me show you the cogs that make impress.js run... | |
| 23 | ( function( document, window ) { | |
| 24 | "use strict"; | |
| 25 | var lib; | |
| 26 | ||
| 27 | // HELPER FUNCTIONS | |
| 28 | ||
| 29 | // `pfx` is a function that takes a standard CSS property name as a parameter | |
| 30 | // and returns it's prefixed version valid for current browser it runs in. | |
| 31 | // The code is heavily inspired by Modernizr http://www.modernizr.com/ | |
| 32 | var pfx = ( function() { | |
| 33 | ||
| 34 | var style = document.createElement( "dummy" ).style, | |
| 35 | prefixes = "Webkit Moz O ms Khtml".split( " " ), | |
| 36 | memory = {}; | |
| 37 | ||
| 38 | return function( prop ) { | |
| 39 | if ( typeof memory[ prop ] === "undefined" ) { | |
| 40 | ||
| 41 | var ucProp = prop.charAt( 0 ).toUpperCase() + prop.substr( 1 ), | |
| 42 | props = ( prop + " " + prefixes.join( ucProp + " " ) + ucProp ).split( " " ); | |
| 43 | ||
| 44 | memory[ prop ] = null; | |
| 45 | for ( var i in props ) { | |
| 46 | if ( style[ props[ i ] ] !== undefined ) { | |
| 47 | memory[ prop ] = props[ i ]; | |
| 48 | break; | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | } | |
| 53 | ||
| 54 | return memory[ prop ]; | |
| 55 | }; | |
| 56 | ||
| 57 | } )(); | |
| 58 | ||
| 59 | var validateOrder = function( order, fallback ) { | |
| 60 | var validChars = "xyz"; | |
| 61 | var returnStr = ""; | |
| 62 | if ( typeof order === "string" ) { | |
| 63 | for ( var i in order.split( "" ) ) { | |
| 64 | if ( validChars.indexOf( order[ i ] ) >= 0 ) { | |
| 65 | returnStr += order[ i ]; | |
| 66 | ||
| 67 | // Each of x,y,z can be used only once. | |
| 68 | validChars = validChars.split( order[ i ] ).join( "" ); | |
| 69 | } | |
| 70 | } | |
| 71 | } | |
| 72 | if ( returnStr ) { | |
| 73 | return returnStr; | |
| 74 | } else if ( fallback !== undefined ) { | |
| 75 | return fallback; | |
| 76 | } else { | |
| 77 | return "xyz"; | |
| 78 | } | |
| 79 | }; | |
| 80 | ||
| 81 | // `css` function applies the styles given in `props` object to the element | |
| 82 | // given as `el`. It runs all property names through `pfx` function to make | |
| 83 | // sure proper prefixed version of the property is used. | |
| 84 | var css = function( el, props ) { | |
| 85 | var key, pkey; | |
| 86 | for ( key in props ) { | |
| 87 | if ( props.hasOwnProperty( key ) ) { | |
| 88 | pkey = pfx( key ); | |
| 89 | if ( pkey !== null ) { | |
| 90 | el.style[ pkey ] = props[ key ]; | |
| 91 | } | |
| 92 | } | |
| 93 | } | |
| 94 | return el; | |
| 95 | }; | |
| 96 | ||
| 97 | // `translate` builds a translate transform string for given data. | |
| 98 | var translate = function( t ) { | |
| 99 | return " translate3d(" + t.x + "px," + t.y + "px," + t.z + "px) "; | |
| 100 | }; | |
| 101 | ||
| 102 | // `rotate` builds a rotate transform string for given data. | |
| 103 | // By default the rotations are in X Y Z order that can be reverted by passing `true` | |
| 104 | // as second parameter. | |
| 105 | var rotate = function( r, revert ) { | |
| 106 | var order = r.order ? r.order : "xyz"; | |
| 107 | var css = ""; | |
| 108 | var axes = order.split( "" ); | |
| 109 | if ( revert ) { | |
| 110 | axes = axes.reverse(); | |
| 111 | } | |
| 112 | ||
| 113 | for ( var i = 0; i < axes.length; i++ ) { | |
| 114 | css += " rotate" + axes[ i ].toUpperCase() + "(" + r[ axes[ i ] ] + "deg)"; | |
| 115 | } | |
| 116 | return css; | |
| 117 | }; | |
| 118 | ||
| 119 | // `scale` builds a scale transform string for given data. | |
| 120 | var scale = function( s ) { | |
| 121 | return " scale(" + s + ") "; | |
| 122 | }; | |
| 123 | ||
| 124 | // `computeWindowScale` counts the scale factor between window size and size | |
| 125 | // defined for the presentation in the config. | |
| 126 | var computeWindowScale = function( config ) { | |
| 127 | var hScale = window.innerHeight / config.height, | |
| 128 | wScale = window.innerWidth / config.width, | |
| 129 | scale = hScale > wScale ? wScale : hScale; | |
| 130 | ||
| 131 | if ( config.maxScale && scale > config.maxScale ) { | |
| 132 | scale = config.maxScale; | |
| 133 | } | |
| 134 | ||
| 135 | if ( config.minScale && scale < config.minScale ) { | |
| 136 | scale = config.minScale; | |
| 137 | } | |
| 138 | ||
| 139 | return scale; | |
| 140 | }; | |
| 141 | ||
| 142 | // CHECK SUPPORT | |
| 143 | var body = document.body; | |
| 144 | var impressSupported = | |
| 145 | ||
| 146 | // Browser should support CSS 3D transtorms | |
| 147 | ( pfx( "perspective" ) !== null ) && | |
| 148 | ||
| 149 | // And `classList` and `dataset` APIs | |
| 150 | ( body.classList ) && | |
| 151 | ( body.dataset ); | |
| 152 | ||
| 153 | if ( !impressSupported ) { | |
| 154 | ||
| 155 | // We can't be sure that `classList` is supported | |
| 156 | body.className += " impress-not-supported "; | |
| 157 | } | |
| 158 | ||
| 159 | // GLOBALS AND DEFAULTS | |
| 160 | ||
| 161 | // This is where the root elements of all impress.js instances will be kept. | |
| 162 | // Yes, this means you can have more than one instance on a page, but I'm not | |
| 163 | // sure if it makes any sense in practice ;) | |
| 164 | var roots = {}; | |
| 165 | ||
| 166 | var preInitPlugins = []; | |
| 167 | var preStepLeavePlugins = []; | |
| 168 | ||
| 169 | // Some default config values. | |
| 170 | var defaults = { | |
| 171 | width: 1024, | |
| 172 | height: 768, | |
| 173 | maxScale: 1, | |
| 174 | minScale: 0, | |
| 175 | ||
| 176 | perspective: 1000, | |
| 177 | ||
| 178 | transitionDuration: 1000 | |
| 179 | }; | |
| 180 | ||
| 181 | // It's just an empty function ... and a useless comment. | |
| 182 | var empty = function() { return false; }; | |
| 183 | ||
| 184 | // IMPRESS.JS API | |
| 185 | ||
| 186 | // And that's where interesting things will start to happen. | |
| 187 | // It's the core `impress` function that returns the impress.js API | |
| 188 | // for a presentation based on the element with given id ("impress" | |
| 189 | // by default). | |
| 190 | var impress = window.impress = function( rootId ) { | |
| 191 | ||
| 192 | // If impress.js is not supported by the browser return a dummy API | |
| 193 | // it may not be a perfect solution but we return early and avoid | |
| 194 | // running code that may use features not implemented in the browser. | |
| 195 | if ( !impressSupported ) { | |
| 196 | return { | |
| 197 | init: empty, | |
| 198 | goto: empty, | |
| 199 | prev: empty, | |
| 200 | next: empty, | |
| 201 | swipe: empty, | |
| 202 | tear: empty, | |
| 203 | lib: {} | |
| 204 | }; | |
| 205 | } | |
| 206 | ||
| 207 | rootId = rootId || "impress"; | |
| 208 | ||
| 209 | // If given root is already initialized just return the API | |
| 210 | if ( roots[ "impress-root-" + rootId ] ) { | |
| 211 | return roots[ "impress-root-" + rootId ]; | |
| 212 | } | |
| 213 | ||
| 214 | // The gc library depends on being initialized before we do any changes to DOM. | |
| 215 | lib = initLibraries( rootId ); | |
| 216 | ||
| 217 | body.classList.remove( "impress-not-supported" ); | |
| 218 | body.classList.add( "impress-supported" ); | |
| 219 | ||
| 220 | // Data of all presentation steps | |
| 221 | var stepsData = {}; | |
| 222 | ||
| 223 | // Element of currently active step | |
| 224 | var activeStep = null; | |
| 225 | ||
| 226 | // Current state (position, rotation and scale) of the presentation | |
| 227 | var currentState = null; | |
| 228 | ||
| 229 | // Array of step elements | |
| 230 | var steps = null; | |
| 231 | ||
| 232 | // Configuration options | |
| 233 | var config = null; | |
| 234 | ||
| 235 | // Scale factor of the browser window | |
| 236 | var windowScale = null; | |
| 237 | ||
| 238 | // Root presentation elements | |
| 239 | var root = lib.util.byId( rootId ); | |
| 240 | var canvas = document.createElement( "div" ); | |
| 241 | ||
| 242 | var initialized = false; | |
| 243 | ||
| 244 | // STEP EVENTS | |
| 245 | // | |
| 246 | // There are currently two step events triggered by impress.js | |
| 247 | // `impress:stepenter` is triggered when the step is shown on the | |
| 248 | // screen (the transition from the previous one is finished) and | |
| 249 | // `impress:stepleave` is triggered when the step is left (the | |
| 250 | // transition to next step just starts). | |
| 251 | ||
| 252 | // Reference to last entered step | |
| 253 | var lastEntered = null; | |
| 254 | ||
| 255 | // `onStepEnter` is called whenever the step element is entered | |
| 256 | // but the event is triggered only if the step is different than | |
| 257 | // last entered step. | |
| 258 | // We sometimes call `goto`, and therefore `onStepEnter`, just to redraw a step, such as | |
| 259 | // after screen resize. In this case - more precisely, in any case - we trigger a | |
| 260 | // `impress:steprefresh` event. | |
| 261 | var onStepEnter = function( step ) { | |
| 262 | if ( lastEntered !== step ) { | |
| 263 | lib.util.triggerEvent( step, "impress:stepenter" ); | |
| 264 | lastEntered = step; | |
| 265 | } | |
| 266 | lib.util.triggerEvent( step, "impress:steprefresh" ); | |
| 267 | }; | |
| 268 | ||
| 269 | // `onStepLeave` is called whenever the currentStep element is left | |
| 270 | // but the event is triggered only if the currentStep is the same as | |
| 271 | // lastEntered step. | |
| 272 | var onStepLeave = function( currentStep, nextStep ) { | |
| 273 | if ( lastEntered === currentStep ) { | |
| 274 | lib.util.triggerEvent( currentStep, "impress:stepleave", { next: nextStep } ); | |
| 275 | lastEntered = null; | |
| 276 | } | |
| 277 | }; | |
| 278 | ||
| 279 | // `initStep` initializes given step element by reading data from its | |
| 280 | // data attributes and setting correct styles. | |
| 281 | var initStep = function( el, idx ) { | |
| 282 | var data = el.dataset, | |
| 283 | step = { | |
| 284 | translate: { | |
| 285 | x: lib.util.toNumber( data.x ), | |
| 286 | y: lib.util.toNumber( data.y ), | |
| 287 | z: lib.util.toNumber( data.z ) | |
| 288 | }, | |
| 289 | rotate: { | |
| 290 | x: lib.util.toNumber( data.rotateX ), | |
| 291 | y: lib.util.toNumber( data.rotateY ), | |
| 292 | z: lib.util.toNumber( data.rotateZ || data.rotate ), | |
| 293 | order: validateOrder( data.rotateOrder ) | |
| 294 | }, | |
| 295 | scale: lib.util.toNumber( data.scale, 1 ), | |
| 296 | transitionDuration: lib.util.toNumber( | |
| 297 | data.transitionDuration, config.transitionDuration | |
| 298 | ), | |
| 299 | el: el | |
| 300 | }; | |
| 301 | ||
| 302 | if ( !el.id ) { | |
| 303 | el.id = "step-" + ( idx + 1 ); | |
| 304 | } | |
| 305 | ||
| 306 | stepsData[ "impress-" + el.id ] = step; | |
| 307 | ||
| 308 | css( el, { | |
| 309 | position: "absolute", | |
| 310 | transform: "translate(-50%,-50%)" + | |
| 311 | translate( step.translate ) + | |
| 312 | rotate( step.rotate ) + | |
| 313 | scale( step.scale ), | |
| 314 | transformStyle: "preserve-3d" | |
| 315 | } ); | |
| 316 | }; | |
| 317 | ||
| 318 | // Initialize all steps. | |
| 319 | // Read the data-* attributes, store in internal stepsData, and render with CSS. | |
| 320 | var initAllSteps = function() { | |
| 321 | steps = lib.util.$$( ".step", root ); | |
| 322 | steps.forEach( initStep ); | |
| 323 | }; | |
| 324 | ||
| 325 | // `init` API function that initializes (and runs) the presentation. | |
| 326 | var init = function() { | |
| 327 | if ( initialized ) { return; } | |
| 328 | execPreInitPlugins( root ); | |
| 329 | ||
| 330 | // First we set up the viewport for mobile devices. | |
| 331 | // For some reason iPad goes nuts when it is not done properly. | |
| 332 | var meta = lib.util.$( "meta[name='viewport']" ) || document.createElement( "meta" ); | |
| 333 | meta.content = "width=device-width, minimum-scale=1, maximum-scale=1, user-scalable=no"; | |
| 334 | if ( meta.parentNode !== document.head ) { | |
| 335 | meta.name = "viewport"; | |
| 336 | document.head.appendChild( meta ); | |
| 337 | } | |
| 338 | ||
| 339 | // Initialize configuration object | |
| 340 | var rootData = root.dataset; | |
| 341 | config = { | |
| 342 | width: lib.util.toNumber( rootData.width, defaults.width ), | |
| 343 | height: lib.util.toNumber( rootData.height, defaults.height ), | |
| 344 | maxScale: lib.util.toNumber( rootData.maxScale, defaults.maxScale ), | |
| 345 | minScale: lib.util.toNumber( rootData.minScale, defaults.minScale ), | |
| 346 | perspective: lib.util.toNumber( rootData.perspective, defaults.perspective ), | |
| 347 | transitionDuration: lib.util.toNumber( | |
| 348 | rootData.transitionDuration, defaults.transitionDuration | |
| 349 | ) | |
| 350 | }; | |
| 351 | ||
| 352 | windowScale = computeWindowScale( config ); | |
| 353 | ||
| 354 | // Wrap steps with "canvas" element | |
| 355 | lib.util.arrayify( root.childNodes ).forEach( function( el ) { | |
| 356 | canvas.appendChild( el ); | |
| 357 | } ); | |
| 358 | root.appendChild( canvas ); | |
| 359 | ||
| 360 | // Set initial styles | |
| 361 | document.documentElement.style.height = "100%"; | |
| 362 | ||
| 363 | css( body, { | |
| 364 | height: "100%", | |
| 365 | overflow: "hidden" | |
| 366 | } ); | |
| 367 | ||
| 368 | var rootStyles = { | |
| 369 | position: "absolute", | |
| 370 | transformOrigin: "top left", | |
| 371 | transition: "all 0s ease-in-out", | |
| 372 | transformStyle: "preserve-3d" | |
| 373 | }; | |
| 374 | ||
| 375 | css( root, rootStyles ); | |
| 376 | css( root, { | |
| 377 | top: "50%", | |
| 378 | left: "50%", | |
| 379 | perspective: ( config.perspective / windowScale ) + "px", | |
| 380 | transform: scale( windowScale ) | |
| 381 | } ); | |
| 382 | css( canvas, rootStyles ); | |
| 383 | ||
| 384 | body.classList.remove( "impress-disabled" ); | |
| 385 | body.classList.add( "impress-enabled" ); | |
| 386 | ||
| 387 | // Get and init steps | |
| 388 | initAllSteps(); | |
| 389 | ||
| 390 | // Set a default initial state of the canvas | |
| 391 | currentState = { | |
| 392 | translate: { x: 0, y: 0, z: 0 }, | |
| 393 | rotate: { x: 0, y: 0, z: 0, order: "xyz" }, | |
| 394 | scale: 1 | |
| 395 | }; | |
| 396 | ||
| 397 | initialized = true; | |
| 398 | ||
| 399 | lib.util.triggerEvent( root, "impress:init", | |
| 400 | { api: roots[ "impress-root-" + rootId ] } ); | |
| 401 | }; | |
| 402 | ||
| 403 | // `getStep` is a helper function that returns a step element defined by parameter. | |
| 404 | // If a number is given, step with index given by the number is returned, if a string | |
| 405 | // is given step element with such id is returned, if DOM element is given it is returned | |
| 406 | // if it is a correct step element. | |
| 407 | var getStep = function( step ) { | |
| 408 | if ( typeof step === "number" ) { | |
| 409 | step = step < 0 ? steps[ steps.length + step ] : steps[ step ]; | |
| 410 | } else if ( typeof step === "string" ) { | |
| 411 | step = lib.util.byId( step ); | |
| 412 | } | |
| 413 | return ( step && step.id && stepsData[ "impress-" + step.id ] ) ? step : null; | |
| 414 | }; | |
| 415 | ||
| 416 | // Used to reset timeout for `impress:stepenter` event | |
| 417 | var stepEnterTimeout = null; | |
| 418 | ||
| 419 | // `goto` API function that moves to step given as `el` parameter (by index, id or element). | |
| 420 | // `duration` optionally given as second parameter, is the transition duration in css. | |
| 421 | // `reason` is the string "next", "prev" or "goto" (default) and will be made available to | |
| 422 | // preStepLeave plugins. | |
| 423 | // `origEvent` may contain event that caused the call to goto, such as a key press event | |
| 424 | var goto = function( el, duration, reason, origEvent ) { | |
| 425 | reason = reason || "goto"; | |
| 426 | origEvent = origEvent || null; | |
| 427 | ||
| 428 | if ( !initialized ) { | |
| 429 | return false; | |
| 430 | } | |
| 431 | ||
| 432 | // Re-execute initAllSteps for each transition. This allows to edit step attributes | |
| 433 | // dynamically, such as change their coordinates, or even remove or add steps, and have | |
| 434 | // that change apply when goto() is called. | |
| 435 | initAllSteps(); | |
| 436 | ||
| 437 | if ( !( el = getStep( el ) ) ) { | |
| 438 | return false; | |
| 439 | } | |
| 440 | ||
| 441 | // Sometimes it's possible to trigger focus on first link with some keyboard action. | |
| 442 | // Browser in such a case tries to scroll the page to make this element visible | |
| 443 | // (even that body overflow is set to hidden) and it breaks our careful positioning. | |
| 444 | // | |
| 445 | // So, as a lousy (and lazy) workaround we will make the page scroll back to the top | |
| 446 | // whenever slide is selected | |
| 447 | // | |
| 448 | // If you are reading this and know any better way to handle it, I'll be glad to hear | |
| 449 | // about it! | |
| 450 | window.scrollTo( 0, 0 ); | |
| 451 | ||
| 452 | var step = stepsData[ "impress-" + el.id ]; | |
| 453 | duration = ( duration !== undefined ? duration : step.transitionDuration ); | |
| 454 | ||
| 455 | // If we are in fact moving to another step, start with executing the registered | |
| 456 | // preStepLeave plugins. | |
| 457 | if ( activeStep && activeStep !== el ) { | |
| 458 | var event = { target: activeStep, detail: {} }; | |
| 459 | event.detail.next = el; | |
| 460 | event.detail.transitionDuration = duration; | |
| 461 | event.detail.reason = reason; | |
| 462 | if ( origEvent ) { | |
| 463 | event.origEvent = origEvent; | |
| 464 | } | |
| 465 | ||
| 466 | if ( execPreStepLeavePlugins( event ) === false ) { | |
| 467 | ||
| 468 | // PreStepLeave plugins are allowed to abort the transition altogether, by | |
| 469 | // returning false. | |
| 470 | // see stop and substep plugins for an example of doing just that | |
| 471 | return false; | |
| 472 | } | |
| 473 | ||
| 474 | // Plugins are allowed to change the detail values | |
| 475 | el = event.detail.next; | |
| 476 | step = stepsData[ "impress-" + el.id ]; | |
| 477 | duration = event.detail.transitionDuration; | |
| 478 | } | |
| 479 | ||
| 480 | if ( activeStep ) { | |
| 481 | activeStep.classList.remove( "active" ); | |
| 482 | body.classList.remove( "impress-on-" + activeStep.id ); | |
| 483 | } | |
| 484 | el.classList.add( "active" ); | |
| 485 | ||
| 486 | body.classList.add( "impress-on-" + el.id ); | |
| 487 | ||
| 488 | // Compute target state of the canvas based on given step | |
| 489 | var target = { | |
| 490 | rotate: { | |
| 491 | x: -step.rotate.x, | |
| 492 | y: -step.rotate.y, | |
| 493 | z: -step.rotate.z, | |
| 494 | order: step.rotate.order | |
| 495 | }, | |
| 496 | translate: { | |
| 497 | x: -step.translate.x, | |
| 498 | y: -step.translate.y, | |
| 499 | z: -step.translate.z | |
| 500 | }, | |
| 501 | scale: 1 / step.scale | |
| 502 | }; | |
| 503 | ||
| 504 | // Check if the transition is zooming in or not. | |
| 505 | // | |
| 506 | // This information is used to alter the transition style: | |
| 507 | // when we are zooming in - we start with move and rotate transition | |
| 508 | // and the scaling is delayed, but when we are zooming out we start | |
| 509 | // with scaling down and move and rotation are delayed. | |
| 510 | var zoomin = target.scale >= currentState.scale; | |
| 511 | ||
| 512 | duration = lib.util.toNumber( duration, config.transitionDuration ); | |
| 513 | var delay = ( duration / 2 ); | |
| 514 | ||
| 515 | // If the same step is re-selected, force computing window scaling, | |
| 516 | // because it is likely to be caused by window resize | |
| 517 | if ( el === activeStep ) { | |
| 518 | windowScale = computeWindowScale( config ); | |
| 519 | } | |
| 520 | ||
| 521 | var targetScale = target.scale * windowScale; | |
| 522 | ||
| 523 | // Trigger leave of currently active element (if it's not the same step again) | |
| 524 | if ( activeStep && activeStep !== el ) { | |
| 525 | onStepLeave( activeStep, el ); | |
| 526 | } | |
| 527 | ||
| 528 | // Now we alter transforms of `root` and `canvas` to trigger transitions. | |
| 529 | // | |
| 530 | // And here is why there are two elements: `root` and `canvas` - they are | |
| 531 | // being animated separately: | |
| 532 | // `root` is used for scaling and `canvas` for translate and rotations. | |
| 533 | // Transitions on them are triggered with different delays (to make | |
| 534 | // visually nice and "natural" looking transitions), so we need to know | |
| 535 | // that both of them are finished. | |
| 536 | css( root, { | |
| 537 | ||
| 538 | // To keep the perspective look similar for different scales | |
| 539 | // we need to "scale" the perspective, too | |
| 540 | // For IE 11 support we must specify perspective independent | |
| 541 | // of transform. | |
| 542 | perspective: ( config.perspective / targetScale ) + "px", | |
| 543 | transform: scale( targetScale ), | |
| 544 | transitionDuration: duration + "ms", | |
| 545 | transitionDelay: ( zoomin ? delay : 0 ) + "ms" | |
| 546 | } ); | |
| 547 | ||
| 548 | css( canvas, { | |
| 549 | transform: rotate( target.rotate, true ) + translate( target.translate ), | |
| 550 | transitionDuration: duration + "ms", | |
| 551 | transitionDelay: ( zoomin ? 0 : delay ) + "ms" | |
| 552 | } ); | |
| 553 | ||
| 554 | // Here is a tricky part... | |
| 555 | // | |
| 556 | // If there is no change in scale or no change in rotation and translation, it means | |
| 557 | // there was actually no delay - because there was no transition on `root` or `canvas` | |
| 558 | // elements. We want to trigger `impress:stepenter` event in the correct moment, so | |
| 559 | // here we compare the current and target values to check if delay should be taken into | |
| 560 | // account. | |
| 561 | // | |
| 562 | // I know that this `if` statement looks scary, but it's pretty simple when you know | |
| 563 | // what is going on - it's simply comparing all the values. | |
| 564 | if ( currentState.scale === target.scale || | |
| 565 | ( currentState.rotate.x === target.rotate.x && | |
| 566 | currentState.rotate.y === target.rotate.y && | |
| 567 | currentState.rotate.z === target.rotate.z && | |
| 568 | currentState.translate.x === target.translate.x && | |
| 569 | currentState.translate.y === target.translate.y && | |
| 570 | currentState.translate.z === target.translate.z ) ) { | |
| 571 | delay = 0; | |
| 572 | } | |
| 573 | ||
| 574 | // Store current state | |
| 575 | currentState = target; | |
| 576 | activeStep = el; | |
| 577 | ||
| 578 | // And here is where we trigger `impress:stepenter` event. | |
| 579 | // We simply set up a timeout to fire it taking transition duration (and possible delay) | |
| 580 | // into account. | |
| 581 | // | |
| 582 | // I really wanted to make it in more elegant way. The `transitionend` event seemed to | |
| 583 | // be the best way to do it, but the fact that I'm using transitions on two separate | |
| 584 | // elements and that the `transitionend` event is only triggered when there was a | |
| 585 | // transition (change in the values) caused some bugs and made the code really | |
| 586 | // complicated, cause I had to handle all the conditions separately. And it still | |
| 587 | // needed a `setTimeout` fallback for the situations when there is no transition at all. | |
| 588 | // So I decided that I'd rather make the code simpler than use shiny new | |
| 589 | // `transitionend`. | |
| 590 | // | |
| 591 | // If you want learn something interesting and see how it was done with `transitionend` | |
| 592 | // go back to version 0.5.2 of impress.js: | |
| 593 | // http://github.com/bartaz/impress.js/blob/0.5.2/js/impress.js | |
| 594 | window.clearTimeout( stepEnterTimeout ); | |
| 595 | stepEnterTimeout = window.setTimeout( function() { | |
| 596 | onStepEnter( activeStep ); | |
| 597 | }, duration + delay ); | |
| 598 | ||
| 599 | return el; | |
| 600 | }; | |
| 601 | ||
| 602 | // `prev` API function goes to previous step (in document order) | |
| 603 | // `event` is optional, may contain the event that caused the need to call prev() | |
| 604 | var prev = function( origEvent ) { | |
| 605 | var prev = steps.indexOf( activeStep ) - 1; | |
| 606 | prev = prev >= 0 ? steps[ prev ] : steps[ steps.length - 1 ]; | |
| 607 | ||
| 608 | return goto( prev, undefined, "prev", origEvent ); | |
| 609 | }; | |
| 610 | ||
| 611 | // `next` API function goes to next step (in document order) | |
| 612 | // `event` is optional, may contain the event that caused the need to call next() | |
| 613 | var next = function( origEvent ) { | |
| 614 | var next = steps.indexOf( activeStep ) + 1; | |
| 615 | next = next < steps.length ? steps[ next ] : steps[ 0 ]; | |
| 616 | ||
| 617 | return goto( next, undefined, "next", origEvent ); | |
| 618 | }; | |
| 619 | ||
| 620 | // Swipe for touch devices by @and3rson. | |
| 621 | // Below we extend the api to control the animation between the currently | |
| 622 | // active step and a presumed next/prev step. See touch plugin for | |
| 623 | // an example of using this api. | |
| 624 | ||
| 625 | // Helper function | |
| 626 | var interpolate = function( a, b, k ) { | |
| 627 | return a + ( b - a ) * k; | |
| 628 | }; | |
| 629 | ||
| 630 | // Animate a swipe. | |
| 631 | // | |
| 632 | // Pct is a value between -1.0 and +1.0, designating the current length | |
| 633 | // of the swipe. | |
| 634 | // | |
| 635 | // If pct is negative, swipe towards the next() step, if positive, | |
| 636 | // towards the prev() step. | |
| 637 | // | |
| 638 | // Note that pre-stepleave plugins such as goto can mess with what is a | |
| 639 | // next() and prev() step, so we need to trigger the pre-stepleave event | |
| 640 | // here, even if a swipe doesn't guarantee that the transition will | |
| 641 | // actually happen. | |
| 642 | // | |
| 643 | // Calling swipe(), with any value of pct, won't in itself cause a | |
| 644 | // transition to happen, this is just to animate the swipe. Once the | |
| 645 | // transition is committed - such as at a touchend event - caller is | |
| 646 | // responsible for also calling prev()/next() as appropriate. | |
| 647 | // | |
| 648 | // Note: For now, this function is made available to be used by the swipe plugin (which | |
| 649 | // is the UI counterpart to this). It is a semi-internal API and intentionally not | |
| 650 | // documented in DOCUMENTATION.md. | |
| 651 | var swipe = function( pct ) { | |
| 652 | if ( Math.abs( pct ) > 1 ) { | |
| 653 | return; | |
| 654 | } | |
| 655 | ||
| 656 | // Prepare & execute the preStepLeave event | |
| 657 | var event = { target: activeStep, detail: {} }; | |
| 658 | event.detail.swipe = pct; | |
| 659 | ||
| 660 | // Will be ignored within swipe animation, but just in case a plugin wants to read this, | |
| 661 | // humor them | |
| 662 | event.detail.transitionDuration = config.transitionDuration; | |
| 663 | var idx; // Needed by jshint | |
| 664 | if ( pct < 0 ) { | |
| 665 | idx = steps.indexOf( activeStep ) + 1; | |
| 666 | event.detail.next = idx < steps.length ? steps[ idx ] : steps[ 0 ]; | |
| 667 | event.detail.reason = "next"; | |
| 668 | } else if ( pct > 0 ) { | |
| 669 | idx = steps.indexOf( activeStep ) - 1; | |
| 670 | event.detail.next = idx >= 0 ? steps[ idx ] : steps[ steps.length - 1 ]; | |
| 671 | event.detail.reason = "prev"; | |
| 672 | } else { | |
| 673 | ||
| 674 | // No move | |
| 675 | return; | |
| 676 | } | |
| 677 | if ( execPreStepLeavePlugins( event ) === false ) { | |
| 678 | ||
| 679 | // If a preStepLeave plugin wants to abort the transition, don't animate a swipe | |
| 680 | // For stop, this is probably ok. For substep, the plugin it self might want to do | |
| 681 | // some animation, but that's not the current implementation. | |
| 682 | return false; | |
| 683 | } | |
| 684 | var nextElement = event.detail.next; | |
| 685 | ||
| 686 | var nextStep = stepsData[ "impress-" + nextElement.id ]; | |
| 687 | ||
| 688 | // If the same step is re-selected, force computing window scaling, | |
| 689 | var nextScale = nextStep.scale * windowScale; | |
| 690 | var k = Math.abs( pct ); | |
| 691 | ||
| 692 | var interpolatedStep = { | |
| 693 | translate: { | |
| 694 | x: interpolate( currentState.translate.x, -nextStep.translate.x, k ), | |
| 695 | y: interpolate( currentState.translate.y, -nextStep.translate.y, k ), | |
| 696 | z: interpolate( currentState.translate.z, -nextStep.translate.z, k ) | |
| 697 | }, | |
| 698 | rotate: { | |
| 699 | x: interpolate( currentState.rotate.x, -nextStep.rotate.x, k ), | |
| 700 | y: interpolate( currentState.rotate.y, -nextStep.rotate.y, k ), | |
| 701 | z: interpolate( currentState.rotate.z, -nextStep.rotate.z, k ), | |
| 702 | ||
| 703 | // Unfortunately there's a discontinuity if rotation order changes. Nothing I | |
| 704 | // can do about it? | |
| 705 | order: k < 0.7 ? currentState.rotate.order : nextStep.rotate.order | |
| 706 | }, | |
| 707 | scale: interpolate( currentState.scale, nextScale, k ) | |
| 708 | }; | |
| 709 | ||
| 710 | css( root, { | |
| 711 | ||
| 712 | // To keep the perspective look similar for different scales | |
| 713 | // we need to 'scale' the perspective, too | |
| 714 | perspective: config.perspective / interpolatedStep.scale + "px", | |
| 715 | transform: scale( interpolatedStep.scale ), | |
| 716 | transitionDuration: "0ms", | |
| 717 | transitionDelay: "0ms" | |
| 718 | } ); | |
| 719 | ||
| 720 | css( canvas, { | |
| 721 | transform: rotate( interpolatedStep.rotate, true ) + | |
| 722 | translate( interpolatedStep.translate ), | |
| 723 | transitionDuration: "0ms", | |
| 724 | transitionDelay: "0ms" | |
| 725 | } ); | |
| 726 | }; | |
| 727 | ||
| 728 | // Teardown impress | |
| 729 | // Resets the DOM to the state it was before impress().init() was called. | |
| 730 | // (If you called impress(rootId).init() for multiple different rootId's, then you must | |
| 731 | // also call tear() once for each of them.) | |
| 732 | var tear = function() { | |
| 733 | lib.gc.teardown(); | |
| 734 | delete roots[ "impress-root-" + rootId ]; | |
| 735 | }; | |
| 736 | ||
| 737 | // Adding some useful classes to step elements. | |
| 738 | // | |
| 739 | // All the steps that have not been shown yet are given `future` class. | |
| 740 | // When the step is entered the `future` class is removed and the `present` | |
| 741 | // class is given. When the step is left `present` class is replaced with | |
| 742 | // `past` class. | |
| 743 | // | |
| 744 | // So every step element is always in one of three possible states: | |
| 745 | // `future`, `present` and `past`. | |
| 746 | // | |
| 747 | // There classes can be used in CSS to style different types of steps. | |
| 748 | // For example the `present` class can be used to trigger some custom | |
| 749 | // animations when step is shown. | |
| 750 | lib.gc.addEventListener( root, "impress:init", function() { | |
| 751 | ||
| 752 | // STEP CLASSES | |
| 753 | steps.forEach( function( step ) { | |
| 754 | step.classList.add( "future" ); | |
| 755 | } ); | |
| 756 | ||
| 757 | lib.gc.addEventListener( root, "impress:stepenter", function( event ) { | |
| 758 | event.target.classList.remove( "past" ); | |
| 759 | event.target.classList.remove( "future" ); | |
| 760 | event.target.classList.add( "present" ); | |
| 761 | }, false ); | |
| 762 | ||
| 763 | lib.gc.addEventListener( root, "impress:stepleave", function( event ) { | |
| 764 | event.target.classList.remove( "present" ); | |
| 765 | event.target.classList.add( "past" ); | |
| 766 | }, false ); | |
| 767 | ||
| 768 | }, false ); | |
| 769 | ||
| 770 | // Adding hash change support. | |
| 771 | lib.gc.addEventListener( root, "impress:init", function() { | |
| 772 | ||
| 773 | // Last hash detected | |
| 774 | var lastHash = ""; | |
| 775 | ||
| 776 | // `#/step-id` is used instead of `#step-id` to prevent default browser | |
| 777 | // scrolling to element in hash. | |
| 778 | // | |
| 779 | // And it has to be set after animation finishes, because in Chrome it | |
| 780 | // makes transtion laggy. | |
| 781 | // BUG: http://code.google.com/p/chromium/issues/detail?id=62820 | |
| 782 | lib.gc.addEventListener( root, "impress:stepenter", function( event ) { | |
| 783 | window.location.hash = lastHash = "#/" + event.target.id; | |
| 784 | }, false ); | |
| 785 | ||
| 786 | lib.gc.addEventListener( window, "hashchange", function() { | |
| 787 | ||
| 788 | // When the step is entered hash in the location is updated | |
| 789 | // (just few lines above from here), so the hash change is | |
| 790 | // triggered and we would call `goto` again on the same element. | |
| 791 | // | |
| 792 | // To avoid this we store last entered hash and compare. | |
| 793 | if ( window.location.hash !== lastHash ) { | |
| 794 | goto( lib.util.getElementFromHash() ); | |
| 795 | } | |
| 796 | }, false ); | |
| 797 | ||
| 798 | // START | |
| 799 | // by selecting step defined in url or first step of the presentation | |
| 800 | goto( lib.util.getElementFromHash() || steps[ 0 ], 0 ); | |
| 801 | }, false ); | |
| 802 | ||
| 803 | body.classList.add( "impress-disabled" ); | |
| 804 | ||
| 805 | // Store and return API for given impress.js root element | |
| 806 | return ( roots[ "impress-root-" + rootId ] = { | |
| 807 | init: init, | |
| 808 | goto: goto, | |
| 809 | next: next, | |
| 810 | prev: prev, | |
| 811 | swipe: swipe, | |
| 812 | tear: tear, | |
| 813 | lib: lib | |
| 814 | } ); | |
| 815 | ||
| 816 | }; | |
| 817 | ||
| 818 | // Flag that can be used in JS to check if browser have passed the support test | |
| 819 | impress.supported = impressSupported; | |
| 820 | ||
| 821 | // ADD and INIT LIBRARIES | |
| 822 | // Library factories are defined in src/lib/*.js, and register themselves by calling | |
| 823 | // impress.addLibraryFactory(libraryFactoryObject). They're stored here, and used to augment | |
| 824 | // the API with library functions when client calls impress(rootId). | |
| 825 | // See src/lib/README.md for clearer example. | |
| 826 | // (Advanced usage: For different values of rootId, a different instance of the libaries are | |
| 827 | // generated, in case they need to hold different state for different root elements.) | |
| 828 | var libraryFactories = {}; | |
| 829 | impress.addLibraryFactory = function( obj ) { | |
| 830 | for ( var libname in obj ) { | |
| 831 | if ( obj.hasOwnProperty( libname ) ) { | |
| 832 | libraryFactories[ libname ] = obj[ libname ]; | |
| 833 | } | |
| 834 | } | |
| 835 | }; | |
| 836 | ||
| 837 | // Call each library factory, and return the lib object that is added to the api. | |
| 838 | var initLibraries = function( rootId ) { //jshint ignore:line | |
| 839 | var lib = {}; | |
| 840 | for ( var libname in libraryFactories ) { | |
| 841 | if ( libraryFactories.hasOwnProperty( libname ) ) { | |
| 842 | if ( lib[ libname ] !== undefined ) { | |
| 843 | throw "impress.js ERROR: Two libraries both tried to use libname: " + libname; | |
| 844 | } | |
| 845 | lib[ libname ] = libraryFactories[ libname ]( rootId ); | |
| 846 | } | |
| 847 | } | |
| 848 | return lib; | |
| 849 | }; | |
| 850 | ||
| 851 | // `addPreInitPlugin` allows plugins to register a function that should | |
| 852 | // be run (synchronously) at the beginning of init, before | |
| 853 | // impress().init() itself executes. | |
| 854 | impress.addPreInitPlugin = function( plugin, weight ) { | |
| 855 | weight = parseInt( weight ) || 10; | |
| 856 | if ( weight <= 0 ) { | |
| 857 | throw "addPreInitPlugin: weight must be a positive integer"; | |
| 858 | } | |
| 859 | ||
| 860 | if ( preInitPlugins[ weight ] === undefined ) { | |
| 861 | preInitPlugins[ weight ] = []; | |
| 862 | } | |
| 863 | preInitPlugins[ weight ].push( plugin ); | |
| 864 | }; | |
| 865 | ||
| 866 | // Called at beginning of init, to execute all pre-init plugins. | |
| 867 | var execPreInitPlugins = function( root ) { //jshint ignore:line | |
| 868 | for ( var i = 0; i < preInitPlugins.length; i++ ) { | |
| 869 | var thisLevel = preInitPlugins[ i ]; | |
| 870 | if ( thisLevel !== undefined ) { | |
| 871 | for ( var j = 0; j < thisLevel.length; j++ ) { | |
| 872 | thisLevel[ j ]( root ); | |
| 873 | } | |
| 874 | } | |
| 875 | } | |
| 876 | }; | |
| 877 | ||
| 878 | // `addPreStepLeavePlugin` allows plugins to register a function that should | |
| 879 | // be run (synchronously) at the beginning of goto() | |
| 880 | impress.addPreStepLeavePlugin = function( plugin, weight ) { //jshint ignore:line | |
| 881 | weight = parseInt( weight ) || 10; | |
| 882 | if ( weight <= 0 ) { | |
| 883 | throw "addPreStepLeavePlugin: weight must be a positive integer"; | |
| 884 | } | |
| 885 | ||
| 886 | if ( preStepLeavePlugins[ weight ] === undefined ) { | |
| 887 | preStepLeavePlugins[ weight ] = []; | |
| 888 | } | |
| 889 | preStepLeavePlugins[ weight ].push( plugin ); | |
| 890 | }; | |
| 891 | ||
| 892 | // Called at beginning of goto(), to execute all preStepLeave plugins. | |
| 893 | var execPreStepLeavePlugins = function( event ) { //jshint ignore:line | |
| 894 | for ( var i = 0; i < preStepLeavePlugins.length; i++ ) { | |
| 895 | var thisLevel = preStepLeavePlugins[ i ]; | |
| 896 | if ( thisLevel !== undefined ) { | |
| 897 | for ( var j = 0; j < thisLevel.length; j++ ) { | |
| 898 | if ( thisLevel[ j ]( event ) === false ) { | |
| 899 | ||
| 900 | // If a plugin returns false, the stepleave event (and related transition) | |
| 901 | // is aborted | |
| 902 | return false; | |
| 903 | } | |
| 904 | } | |
| 905 | } | |
| 906 | } | |
| 907 | }; | |
| 908 | ||
| 909 | } )( document, window ); | |
| 910 | ||
| 911 | // THAT'S ALL FOLKS! | |
| 912 | // | |
| 913 | // Thanks for reading it all. | |
| 914 | // Or thanks for scrolling down and reading the last part. | |
| 915 | // | |
| 916 | // I've learnt a lot when building impress.js and I hope this code and comments | |
| 917 | // will help somebody learn at least some part of it. | |
| 918 | ||
| 919 | /** | |
| 920 | * Garbage collection utility | |
| 921 | * | |
| 922 | * This library allows plugins to add elements and event listeners they add to the DOM. The user | |
| 923 | * can call `impress().lib.gc.teardown()` to cause all of them to be removed from DOM, so that | |
| 924 | * the document is in the state it was before calling `impress().init()`. | |
| 925 | * | |
| 926 | * In addition to just adding elements and event listeners to the garbage collector, plugins | |
| 927 | * can also register callback functions to do arbitrary cleanup upon teardown. | |
| 928 | * | |
| 929 | * Henrik Ingo (c) 2016 | |
| 930 | * MIT License | |
| 931 | */ | |
| 932 | ||
| 933 | ( function( document, window ) { | |
| 934 | "use strict"; | |
| 935 | var roots = []; | |
| 936 | var rootsCount = 0; | |
| 937 | var startingState = { roots: [] }; | |
| 938 | ||
| 939 | var libraryFactory = function( rootId ) { | |
| 940 | if ( roots[ rootId ] ) { | |
| 941 | return roots[ rootId ]; | |
| 942 | } | |
| 943 | ||
| 944 | // Per root global variables (instance variables?) | |
| 945 | var elementList = []; | |
| 946 | var eventListenerList = []; | |
| 947 | var callbackList = []; | |
| 948 | ||
| 949 | recordStartingState( rootId ); | |
| 950 | ||
| 951 | // LIBRARY FUNCTIONS | |
| 952 | // Definitions of the library functions we return as an object at the end | |
| 953 | ||
| 954 | // `pushElement` adds a DOM element to the gc stack | |
| 955 | var pushElement = function( element ) { | |
| 956 | elementList.push( element ); | |
| 957 | }; | |
| 958 | ||
| 959 | // `appendChild` is a convenience wrapper that combines DOM appendChild with gc.pushElement | |
| 960 | var appendChild = function( parent, element ) { | |
| 961 | parent.appendChild( element ); | |
| 962 | pushElement( element ); | |
| 963 | }; | |
| 964 | ||
| 965 | // `pushEventListener` adds an event listener to the gc stack | |
| 966 | var pushEventListener = function( target, type, listenerFunction ) { | |
| 967 | eventListenerList.push( { target:target, type:type, listener:listenerFunction } ); | |
| 968 | }; | |
| 969 | ||
| 970 | // `addEventListener` combines DOM addEventListener with gc.pushEventListener | |
| 971 | var addEventListener = function( target, type, listenerFunction ) { | |
| 972 | target.addEventListener( type, listenerFunction ); | |
| 973 | pushEventListener( target, type, listenerFunction ); | |
| 974 | }; | |
| 975 | ||
| 976 | // `pushCallback` If the above utilities are not enough, plugins can add their own callback | |
| 977 | // function to do arbitrary things. | |
| 978 | var pushCallback = function( callback ) { | |
| 979 | callbackList.push( callback ); | |
| 980 | }; | |
| 981 | pushCallback( function( rootId ) { resetStartingState( rootId ); } ); | |
| 982 | ||
| 983 | // `teardown` will | |
| 984 | // - execute all callbacks in LIFO order | |
| 985 | // - call `removeChild` on all DOM elements in LIFO order | |
| 986 | // - call `removeEventListener` on all event listeners in LIFO order | |
| 987 | // The goal of a teardown is to return to the same state that the DOM was before | |
| 988 | // `impress().init()` was called. | |
| 989 | var teardown = function() { | |
| 990 | ||
| 991 | // Execute the callbacks in LIFO order | |
| 992 | var i; // Needed by jshint | |
| 993 | for ( i = callbackList.length - 1; i >= 0; i-- ) { | |
| 994 | callbackList[ i ]( rootId ); | |
| 995 | } | |
| 996 | callbackList = []; | |
| 997 | for ( i = 0; i < elementList.length; i++ ) { | |
| 998 | elementList[ i ].parentElement.removeChild( elementList[ i ] ); | |
| 999 | } | |
| 1000 | elementList = []; | |
| 1001 | for ( i = 0; i < eventListenerList.length; i++ ) { | |
| 1002 | var target = eventListenerList[ i ].target; | |
| 1003 | var type = eventListenerList[ i ].type; | |
| 1004 | var listener = eventListenerList[ i ].listener; | |
| 1005 | target.removeEventListener( type, listener ); | |
| 1006 | } | |
| 1007 | }; | |
| 1008 | ||
| 1009 | var lib = { | |
| 1010 | pushElement: pushElement, | |
| 1011 | appendChild: appendChild, | |
| 1012 | pushEventListener: pushEventListener, | |
| 1013 | addEventListener: addEventListener, | |
| 1014 | pushCallback: pushCallback, | |
| 1015 | teardown: teardown | |
| 1016 | }; | |
| 1017 | roots[ rootId ] = lib; | |
| 1018 | rootsCount++; | |
| 1019 | return lib; | |
| 1020 | }; | |
| 1021 | ||
| 1022 | // Let impress core know about the existence of this library | |
| 1023 | window.impress.addLibraryFactory( { gc: libraryFactory } ); | |
| 1024 | ||
| 1025 | // CORE INIT | |
| 1026 | // The library factory (gc(rootId)) is called at the beginning of impress(rootId).init() | |
| 1027 | // For the purposes of teardown(), we can use this as an opportunity to save the state | |
| 1028 | // of a few things in the DOM in their virgin state, before impress().init() did anything. | |
| 1029 | // Note: These could also be recorded by the code in impress.js core as these values | |
| 1030 | // are changed, but in an effort to not deviate too much from upstream, I'm adding | |
| 1031 | // them here rather than the core itself. | |
| 1032 | var recordStartingState = function( rootId ) { | |
| 1033 | startingState.roots[ rootId ] = {}; | |
| 1034 | startingState.roots[ rootId ].steps = []; | |
| 1035 | ||
| 1036 | // Record whether the steps have an id or not | |
| 1037 | var steps = document.getElementById( rootId ).querySelectorAll( ".step" ); | |
| 1038 | for ( var i = 0; i < steps.length; i++ ) { | |
| 1039 | var el = steps[ i ]; | |
| 1040 | startingState.roots[ rootId ].steps.push( { | |
| 1041 | el: el, | |
| 1042 | id: el.getAttribute( "id" ) | |
| 1043 | } ); | |
| 1044 | } | |
| 1045 | ||
| 1046 | // In the rare case of multiple roots, the following is changed on first init() and | |
| 1047 | // reset at last tear(). | |
| 1048 | if ( rootsCount === 0 ) { | |
| 1049 | startingState.body = {}; | |
| 1050 | ||
| 1051 | // It is customary for authors to set body.class="impress-not-supported" as a starting | |
| 1052 | // value, which can then be removed by impress().init(). But it is not required. | |
| 1053 | // Remember whether it was there or not. | |
| 1054 | if ( document.body.classList.contains( "impress-not-supported" ) ) { | |
| 1055 | startingState.body.impressNotSupported = true; | |
| 1056 | } else { | |
| 1057 | startingState.body.impressNotSupported = false; | |
| 1058 | } | |
| 1059 | ||
| 1060 | // If there's a <meta name="viewport"> element, its contents will be overwritten by init | |
| 1061 | var metas = document.head.querySelectorAll( "meta" ); | |
| 1062 | for ( i = 0; i < metas.length; i++ ) { | |
| 1063 | var m = metas[ i ]; | |
| 1064 | if ( m.name === "viewport" ) { | |
| 1065 | startingState.meta = m.content; | |
| 1066 | } | |
| 1067 | } | |
| 1068 | } | |
| 1069 | }; | |
| 1070 | ||
| 1071 | // CORE TEARDOWN | |
| 1072 | var resetStartingState = function( rootId ) { | |
| 1073 | ||
| 1074 | // Reset body element | |
| 1075 | document.body.classList.remove( "impress-enabled" ); | |
| 1076 | document.body.classList.remove( "impress-disabled" ); | |
| 1077 | ||
| 1078 | var root = document.getElementById( rootId ); | |
| 1079 | var activeId = root.querySelector( ".active" ).id; | |
| 1080 | document.body.classList.remove( "impress-on-" + activeId ); | |
| 1081 | ||
| 1082 | document.documentElement.style.height = ""; | |
| 1083 | document.body.style.height = ""; | |
| 1084 | document.body.style.overflow = ""; | |
| 1085 | ||
| 1086 | // Remove style values from the root and step elements | |
| 1087 | // Note: We remove the ones set by impress.js core. Otoh, we didn't preserve any original | |
| 1088 | // values. A more sophisticated implementation could keep track of original values and then | |
| 1089 | // reset those. | |
| 1090 | var steps = root.querySelectorAll( ".step" ); | |
| 1091 | for ( var i = 0; i < steps.length; i++ ) { | |
| 1092 | steps[ i ].classList.remove( "future" ); | |
| 1093 | steps[ i ].classList.remove( "past" ); | |
| 1094 | steps[ i ].classList.remove( "present" ); | |
| 1095 | steps[ i ].classList.remove( "active" ); | |
| 1096 | steps[ i ].style.position = ""; | |
| 1097 | steps[ i ].style.transform = ""; | |
| 1098 | steps[ i ].style[ "transform-style" ] = ""; | |
| 1099 | } | |
| 1100 | root.style.position = ""; | |
| 1101 | root.style[ "transform-origin" ] = ""; | |
| 1102 | root.style.transition = ""; | |
| 1103 | root.style[ "transform-style" ] = ""; | |
| 1104 | root.style.top = ""; | |
| 1105 | root.style.left = ""; | |
| 1106 | root.style.transform = ""; | |
| 1107 | ||
| 1108 | // Reset id of steps ("step-1" id's are auto generated) | |
| 1109 | steps = startingState.roots[ rootId ].steps; | |
| 1110 | var step; | |
| 1111 | while ( step = steps.pop() ) { | |
| 1112 | if ( step.id === null ) { | |
| 1113 | step.el.removeAttribute( "id" ); | |
| 1114 | } else { | |
| 1115 | step.el.setAttribute( "id", step.id ); | |
| 1116 | } | |
| 1117 | } | |
| 1118 | delete startingState.roots[ rootId ]; | |
| 1119 | ||
| 1120 | // Move step div elements away from canvas, then delete canvas | |
| 1121 | // Note: There's an implicit assumption here that the canvas div is the only child element | |
| 1122 | // of the root div. If there would be something else, it's gonna be lost. | |
| 1123 | var canvas = root.firstChild; | |
| 1124 | var canvasHTML = canvas.innerHTML; | |
| 1125 | root.innerHTML = canvasHTML; | |
| 1126 | ||
| 1127 | if ( roots[ rootId ] !== undefined ) { | |
| 1128 | delete roots[ rootId ]; | |
| 1129 | rootsCount--; | |
| 1130 | } | |
| 1131 | if ( rootsCount === 0 ) { | |
| 1132 | ||
| 1133 | // In the rare case that more than one impress root elements were initialized, these | |
| 1134 | // are only reset when all are uninitialized. | |
| 1135 | document.body.classList.remove( "impress-supported" ); | |
| 1136 | if ( startingState.body.impressNotSupported ) { | |
| 1137 | document.body.classList.add( "impress-not-supported" ); | |
| 1138 | } | |
| 1139 | ||
| 1140 | // We need to remove or reset the meta element inserted by impress.js | |
| 1141 | var metas = document.head.querySelectorAll( "meta" ); | |
| 1142 | for ( i = 0; i < metas.length; i++ ) { | |
| 1143 | var m = metas[ i ]; | |
| 1144 | if ( m.name === "viewport" ) { | |
| 1145 | if ( startingState.meta !== undefined ) { | |
| 1146 | m.content = startingState.meta; | |
| 1147 | } else { | |
| 1148 | m.parentElement.removeChild( m ); | |
| 1149 | } | |
| 1150 | } | |
| 1151 | } | |
| 1152 | } | |
| 1153 | ||
| 1154 | }; | |
| 1155 | ||
| 1156 | } )( document, window ); | |
| 1157 | ||
| 1158 | /** | |
| 1159 | * Common utility functions | |
| 1160 | * | |
| 1161 | * Copyright 2011-2012 Bartek Szopka (@bartaz) | |
| 1162 | * Henrik Ingo (c) 2016 | |
| 1163 | * MIT License | |
| 1164 | */ | |
| 1165 | ||
| 1166 | ( function( document, window ) { | |
| 1167 | "use strict"; | |
| 1168 | var roots = []; | |
| 1169 | ||
| 1170 | var libraryFactory = function( rootId ) { | |
| 1171 | if ( roots[ rootId ] ) { | |
| 1172 | return roots[ rootId ]; | |
| 1173 | } | |
| 1174 | ||
| 1175 | // `$` returns first element for given CSS `selector` in the `context` of | |
| 1176 | // the given element or whole document. | |
| 1177 | var $ = function( selector, context ) { | |
| 1178 | context = context || document; | |
| 1179 | return context.querySelector( selector ); | |
| 1180 | }; | |
| 1181 | ||
| 1182 | // `$$` return an array of elements for given CSS `selector` in the `context` of | |
| 1183 | // the given element or whole document. | |
| 1184 | var $$ = function( selector, context ) { | |
| 1185 | context = context || document; | |
| 1186 | return arrayify( context.querySelectorAll( selector ) ); | |
| 1187 | }; | |
| 1188 | ||
| 1189 | // `arrayify` takes an array-like object and turns it into real Array | |
| 1190 | // to make all the Array.prototype goodness available. | |
| 1191 | var arrayify = function( a ) { | |
| 1192 | return [].slice.call( a ); | |
| 1193 | }; | |
| 1194 | ||
| 1195 | // `byId` returns element with given `id` - you probably have guessed that ;) | |
| 1196 | var byId = function( id ) { | |
| 1197 | return document.getElementById( id ); | |
| 1198 | }; | |
| 1199 | ||
| 1200 | // `getElementFromHash` returns an element located by id from hash part of | |
| 1201 | // window location. | |
| 1202 | var getElementFromHash = function() { | |
| 1203 | ||
| 1204 | // Get id from url # by removing `#` or `#/` from the beginning, | |
| 1205 | // so both "fallback" `#slide-id` and "enhanced" `#/slide-id` will work | |
| 1206 | return byId( window.location.hash.replace( /^#\/?/, "" ) ); | |
| 1207 | }; | |
| 1208 | ||
| 1209 | // Throttling function calls, by Remy Sharp | |
| 1210 | // http://remysharp.com/2010/07/21/throttling-function-calls/ | |
| 1211 | var throttle = function( fn, delay ) { | |
| 1212 | var timer = null; | |
| 1213 | return function() { | |
| 1214 | var context = this, args = arguments; | |
| 1215 | window.clearTimeout( timer ); | |
| 1216 | timer = window.setTimeout( function() { | |
| 1217 | fn.apply( context, args ); | |
| 1218 | }, delay ); | |
| 1219 | }; | |
| 1220 | }; | |
| 1221 | ||
| 1222 | // `toNumber` takes a value given as `numeric` parameter and tries to turn | |
| 1223 | // it into a number. If it is not possible it returns 0 (or other value | |
| 1224 | // given as `fallback`). | |
| 1225 | var toNumber = function( numeric, fallback ) { | |
| 1226 | return isNaN( numeric ) ? ( fallback || 0 ) : Number( numeric ); | |
| 1227 | }; | |
| 1228 | ||
| 1229 | // `triggerEvent` builds a custom DOM event with given `eventName` and `detail` data | |
| 1230 | // and triggers it on element given as `el`. | |
| 1231 | var triggerEvent = function( el, eventName, detail ) { | |
| 1232 | var event = document.createEvent( "CustomEvent" ); | |
| 1233 | event.initCustomEvent( eventName, true, true, detail ); | |
| 1234 | el.dispatchEvent( event ); | |
| 1235 | }; | |
| 1236 | ||
| 1237 | var lib = { | |
| 1238 | $: $, | |
| 1239 | $$: $$, | |
| 1240 | arrayify: arrayify, | |
| 1241 | byId: byId, | |
| 1242 | getElementFromHash: getElementFromHash, | |
| 1243 | throttle: throttle, | |
| 1244 | toNumber: toNumber, | |
| 1245 | triggerEvent: triggerEvent | |
| 1246 | }; | |
| 1247 | roots[ rootId ] = lib; | |
| 1248 | return lib; | |
| 1249 | }; | |
| 1250 | ||
| 1251 | // Let impress core know about the existence of this library | |
| 1252 | window.impress.addLibraryFactory( { util: libraryFactory } ); | |
| 1253 | ||
| 1254 | } )( document, window ); | |
| 1255 | ||
| 1256 | /** | |
| 1257 | * Autoplay plugin - Automatically advance slideshow after N seconds | |
| 1258 | * | |
| 1259 | * Copyright 2016 Henrik Ingo, henrik.ingo@avoinelama.fi | |
| 1260 | * Released under the MIT license. | |
| 1261 | */ | |
| 1262 | /* global clearTimeout, setTimeout, document */ | |
| 1263 | ||
| 1264 | ( function( document ) { | |
| 1265 | "use strict"; | |
| 1266 | ||
| 1267 | var autoplayDefault = 0; | |
| 1268 | var currentStepTimeout = 0; | |
| 1269 | var api = null; | |
| 1270 | var timeoutHandle = null; | |
| 1271 | var root = null; | |
| 1272 | var util; | |
| 1273 | ||
| 1274 | // On impress:init, check whether there is a default setting, as well as | |
| 1275 | // handle step-1. | |
| 1276 | document.addEventListener( "impress:init", function( event ) { | |
| 1277 | util = event.detail.api.lib.util; | |
| 1278 | ||
| 1279 | // Getting API from event data instead of global impress().init(). | |
| 1280 | // You don't even need to know what is the id of the root element | |
| 1281 | // or anything. `impress:init` event data gives you everything you | |
| 1282 | // need to control the presentation that was just initialized. | |
| 1283 | api = event.detail.api; | |
| 1284 | root = event.target; | |
| 1285 | ||
| 1286 | // Element attributes starting with "data-", become available under | |
| 1287 | // element.dataset. In addition hyphenized words become camelCased. | |
| 1288 | var data = root.dataset; | |
| 1289 | ||
| 1290 | if ( data.autoplay ) { | |
| 1291 | autoplayDefault = util.toNumber( data.autoplay, 0 ); | |
| 1292 | } | |
| 1293 | ||
| 1294 | var toolbar = document.querySelector( "#impress-toolbar" ); | |
| 1295 | if ( toolbar ) { | |
| 1296 | addToolbarButton( toolbar ); | |
| 1297 | } | |
| 1298 | ||
| 1299 | api.lib.gc.pushCallback( function() { | |
| 1300 | clearTimeout( timeoutHandle ); | |
| 1301 | } ); | |
| 1302 | ||
| 1303 | // Note that right after impress:init event, also impress:stepenter is | |
| 1304 | // triggered for the first slide, so that's where code flow continues. | |
| 1305 | }, false ); | |
| 1306 | ||
| 1307 | // If default autoplay time was defined in the presentation root, or | |
| 1308 | // in this step, set timeout. | |
| 1309 | var reloadTimeout = function( event ) { | |
| 1310 | var step = event.target; | |
| 1311 | currentStepTimeout = util.toNumber( step.dataset.autoplay, autoplayDefault ); | |
| 1312 | if ( status === "paused" ) { | |
| 1313 | setAutoplayTimeout( 0 ); | |
| 1314 | } else { | |
| 1315 | setAutoplayTimeout( currentStepTimeout ); | |
| 1316 | } | |
| 1317 | }; | |
| 1318 | ||
| 1319 | document.addEventListener( "impress:stepenter", function( event ) { | |
| 1320 | reloadTimeout( event ); | |
| 1321 | }, false ); | |
| 1322 | ||
| 1323 | document.addEventListener( "impress:substep:stepleaveaborted", function( event ) { | |
| 1324 | reloadTimeout( event ); | |
| 1325 | }, false ); | |
| 1326 | ||
| 1327 | /** | |
| 1328 | * Set timeout after which we move to next() step. | |
| 1329 | */ | |
| 1330 | var setAutoplayTimeout = function( timeout ) { | |
| 1331 | if ( timeoutHandle ) { | |
| 1332 | clearTimeout( timeoutHandle ); | |
| 1333 | } | |
| 1334 | ||
| 1335 | if ( timeout > 0 ) { | |
| 1336 | timeoutHandle = setTimeout( function() { api.next(); }, timeout * 1000 ); | |
| 1337 | } | |
| 1338 | setButtonText(); | |
| 1339 | }; | |
| 1340 | ||
| 1341 | /*** Toolbar plugin integration *******************************************/ | |
| 1342 | var status = "not clicked"; | |
| 1343 | var toolbarButton = null; | |
| 1344 | ||
| 1345 | // Copied from core impress.js. Good candidate for moving to a utilities collection. | |
| 1346 | var triggerEvent = function( el, eventName, detail ) { | |
| 1347 | var event = document.createEvent( "CustomEvent" ); | |
| 1348 | event.initCustomEvent( eventName, true, true, detail ); | |
| 1349 | el.dispatchEvent( event ); | |
| 1350 | }; | |
| 1351 | ||
| 1352 | var makeDomElement = function( html ) { | |
| 1353 | var tempDiv = document.createElement( "div" ); | |
| 1354 | tempDiv.innerHTML = html; | |
| 1355 | return tempDiv.firstChild; | |
| 1356 | }; | |
| 1357 | ||
| 1358 | var toggleStatus = function() { | |
| 1359 | if ( currentStepTimeout > 0 && status !== "paused" ) { | |
| 1360 | status = "paused"; | |
| 1361 | } else { | |
| 1362 | status = "playing"; | |
| 1363 | } | |
| 1364 | }; | |
| 1365 | ||
| 1366 | var getButtonText = function() { | |
| 1367 | if ( currentStepTimeout > 0 && status !== "paused" ) { | |
| 1368 | return "||"; // Pause | |
| 1369 | } else { | |
| 1370 | return "▶"; // Play | |
| 1371 | } | |
| 1372 | }; | |
| 1373 | ||
| 1374 | var setButtonText = function() { | |
| 1375 | if ( toolbarButton ) { | |
| 1376 | ||
| 1377 | // Keep button size the same even if label content is changing | |
| 1378 | var buttonWidth = toolbarButton.offsetWidth; | |
| 1379 | var buttonHeight = toolbarButton.offsetHeight; | |
| 1380 | toolbarButton.innerHTML = getButtonText(); | |
| 1381 | if ( !toolbarButton.style.width ) { | |
| 1382 | toolbarButton.style.width = buttonWidth + "px"; | |
| 1383 | } | |
| 1384 | if ( !toolbarButton.style.height ) { | |
| 1385 | toolbarButton.style.height = buttonHeight + "px"; | |
| 1386 | } | |
| 1387 | } | |
| 1388 | }; | |
| 1389 | ||
| 1390 | var addToolbarButton = function( toolbar ) { | |
| 1391 | var html = '<button id="impress-autoplay-playpause" ' + // jshint ignore:line | |
| 1392 | 'title="Autoplay" class="impress-autoplay">' + // jshint ignore:line | |
| 1393 | getButtonText() + "</button>"; // jshint ignore:line | |
| 1394 | toolbarButton = makeDomElement( html ); | |
| 1395 | toolbarButton.addEventListener( "click", function() { | |
| 1396 | toggleStatus(); | |
| 1397 | if ( status === "playing" ) { | |
| 1398 | if ( autoplayDefault === 0 ) { | |
| 1399 | autoplayDefault = 7; | |
| 1400 | } | |
| 1401 | if ( currentStepTimeout === 0 ) { | |
| 1402 | currentStepTimeout = autoplayDefault; | |
| 1403 | } | |
| 1404 | setAutoplayTimeout( currentStepTimeout ); | |
| 1405 | } else if ( status === "paused" ) { | |
| 1406 | setAutoplayTimeout( 0 ); | |
| 1407 | } | |
| 1408 | } ); | |
| 1409 | ||
| 1410 | triggerEvent( toolbar, "impress:toolbar:appendChild", | |
| 1411 | { group: 10, element: toolbarButton } ); | |
| 1412 | }; | |
| 1413 | ||
| 1414 | } )( document ); | |
| 1415 | ||
| 1416 | /** | |
| 1417 | * Blackout plugin | |
| 1418 | * | |
| 1419 | * Press Ctrl+b to hide all slides, and Ctrl+b again to show them. | |
| 1420 | * Also navigating to a different slide will show them again (impress:stepleave). | |
| 1421 | * | |
| 1422 | * Copyright 2014 @Strikeskids | |
| 1423 | * Released under the MIT license. | |
| 1424 | */ | |
| 1425 | /* global document */ | |
| 1426 | ||
| 1427 | ( function( document ) { | |
| 1428 | "use strict"; | |
| 1429 | ||
| 1430 | var canvas = null; | |
| 1431 | var blackedOut = false; | |
| 1432 | ||
| 1433 | // While waiting for a shared library of utilities, copying these 2 from main impress.js | |
| 1434 | var css = function( el, props ) { | |
| 1435 | var key, pkey; | |
| 1436 | for ( key in props ) { | |
| 1437 | if ( props.hasOwnProperty( key ) ) { | |
| 1438 | pkey = pfx( key ); | |
| 1439 | if ( pkey !== null ) { | |
| 1440 | el.style[ pkey ] = props[ key ]; | |
| 1441 | } | |
| 1442 | } | |
| 1443 | } | |
| 1444 | return el; | |
| 1445 | }; | |
| 1446 | ||
| 1447 | var pfx = ( function() { | |
| 1448 | ||
| 1449 | var style = document.createElement( "dummy" ).style, | |
| 1450 | prefixes = "Webkit Moz O ms Khtml".split( " " ), | |
| 1451 | memory = {}; | |
| 1452 | ||
| 1453 | return function( prop ) { | |
| 1454 | if ( typeof memory[ prop ] === "undefined" ) { | |
| 1455 | ||
| 1456 | var ucProp = prop.charAt( 0 ).toUpperCase() + prop.substr( 1 ), | |
| 1457 | props = ( prop + " " + prefixes.join( ucProp + " " ) + ucProp ).split( " " ); | |
| 1458 | ||
| 1459 | memory[ prop ] = null; | |
| 1460 | for ( var i in props ) { | |
| 1461 | if ( style[ props[ i ] ] !== undefined ) { | |
| 1462 | memory[ prop ] = props[ i ]; | |
| 1463 | break; | |
| 1464 | } | |
| 1465 | } | |
| 1466 | ||
| 1467 | } | |
| 1468 | ||
| 1469 | return memory[ prop ]; | |
| 1470 | }; | |
| 1471 | ||
| 1472 | } )(); | |
| 1473 | ||
| 1474 | var removeBlackout = function() { | |
| 1475 | if ( blackedOut ) { | |
| 1476 | css( canvas, { | |
| 1477 | display: "block" | |
| 1478 | } ); | |
| 1479 | blackedOut = false; | |
| 1480 | } | |
| 1481 | }; | |
| 1482 | ||
| 1483 | var blackout = function() { | |
| 1484 | if ( blackedOut ) { | |
| 1485 | removeBlackout(); | |
| 1486 | } else { | |
| 1487 | css( canvas, { | |
| 1488 | display: ( blackedOut = !blackedOut ) ? "none" : "block" | |
| 1489 | } ); | |
| 1490 | blackedOut = true; | |
| 1491 | } | |
| 1492 | }; | |
| 1493 | ||
| 1494 | // Wait for impress.js to be initialized | |
| 1495 | document.addEventListener( "impress:init", function( event ) { | |
| 1496 | var api = event.detail.api; | |
| 1497 | var root = event.target; | |
| 1498 | canvas = root.firstElementChild; | |
| 1499 | var gc = api.lib.gc; | |
| 1500 | ||
| 1501 | gc.addEventListener( document, "keydown", function( event ) { | |
| 1502 | if ( event.keyCode === 66 ) { | |
| 1503 | event.preventDefault(); | |
| 1504 | if ( !blackedOut ) { | |
| 1505 | blackout(); | |
| 1506 | } else { | |
| 1507 | removeBlackout(); | |
| 1508 | } | |
| 1509 | } | |
| 1510 | }, false ); | |
| 1511 | ||
| 1512 | gc.addEventListener( document, "keyup", function( event ) { | |
| 1513 | if ( event.keyCode === 66 ) { | |
| 1514 | event.preventDefault(); | |
| 1515 | } | |
| 1516 | }, false ); | |
| 1517 | ||
| 1518 | }, false ); | |
| 1519 | ||
| 1520 | document.addEventListener( "impress:stepleave", function() { | |
| 1521 | removeBlackout(); | |
| 1522 | }, false ); | |
| 1523 | ||
| 1524 | } )( document ); | |
| 1525 | ||
| 1526 | ||
| 1527 | /** | |
| 1528 | * Extras Plugin | |
| 1529 | * | |
| 1530 | * This plugin performs initialization (like calling mermaid.initialize()) | |
| 1531 | * for the extras/ plugins if they are loaded into a presentation. | |
| 1532 | * | |
| 1533 | * See README.md for details. | |
| 1534 | * | |
| 1535 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 1536 | * Released under the MIT license. | |
| 1537 | */ | |
| 1538 | /* global markdown, hljs, mermaid, impress, document, window */ | |
| 1539 | ||
| 1540 | ( function( document, window ) { | |
| 1541 | "use strict"; | |
| 1542 | ||
| 1543 | var preInit = function() { | |
| 1544 | if ( window.markdown ) { | |
| 1545 | ||
| 1546 | // Unlike the other extras, Markdown.js doesn't by default do anything in | |
| 1547 | // particular. We do it ourselves here. | |
| 1548 | // In addition, we use "-----" as a delimiter for new slide. | |
| 1549 | ||
| 1550 | // Query all .markdown elements and translate to HTML | |
| 1551 | var markdownDivs = document.querySelectorAll( ".markdown" ); | |
| 1552 | for ( var idx = 0; idx < markdownDivs.length; idx++ ) { | |
| 1553 | var element = markdownDivs[ idx ]; | |
| 1554 | ||
| 1555 | var slides = element.textContent.split( /^-----$/m ); | |
| 1556 | var i = slides.length - 1; | |
| 1557 | element.innerHTML = markdown.toHTML( slides[ i ] ); | |
| 1558 | ||
| 1559 | // If there's an id, unset it for last, and all other, elements, | |
| 1560 | // and then set it for the first. | |
| 1561 | var id = null; | |
| 1562 | if ( element.id ) { | |
| 1563 | id = element.id; | |
| 1564 | element.id = ""; | |
| 1565 | } | |
| 1566 | i--; | |
| 1567 | while ( i >= 0 ) { | |
| 1568 | var newElement = element.cloneNode( false ); | |
| 1569 | newElement.innerHTML = markdown.toHTML( slides[ i ] ); | |
| 1570 | element.parentNode.insertBefore( newElement, element ); | |
| 1571 | element = newElement; | |
| 1572 | i--; | |
| 1573 | } | |
| 1574 | if ( id !== null ) { | |
| 1575 | element.id = id; | |
| 1576 | } | |
| 1577 | } | |
| 1578 | } // Markdown | |
| 1579 | ||
| 1580 | if ( window.hljs ) { | |
| 1581 | hljs.initHighlightingOnLoad(); | |
| 1582 | } | |
| 1583 | ||
| 1584 | if ( window.mermaid ) { | |
| 1585 | mermaid.initialize( { startOnLoad:true } ); | |
| 1586 | } | |
| 1587 | }; | |
| 1588 | ||
| 1589 | // Register the plugin to be called in pre-init phase | |
| 1590 | // Note: Markdown.js should run early/first, because it creates new div elements. | |
| 1591 | // So add this with a lower-than-default weight. | |
| 1592 | impress.addPreInitPlugin( preInit, 1 ); | |
| 1593 | ||
| 1594 | } )( document, window ); | |
| 1595 | ||
| 1596 | ||
| 1597 | /** | |
| 1598 | * Form support | |
| 1599 | * | |
| 1600 | * Functionality to better support use of input, textarea, button... elements in a presentation. | |
| 1601 | * | |
| 1602 | * This plugin does two things: | |
| 1603 | * | |
| 1604 | * Set stopPropagation on any element that might take text input. This allows users to type, for | |
| 1605 | * example, the letter 'P' into a form field, without causing the presenter console to spring up. | |
| 1606 | * | |
| 1607 | * On impress:stepleave, de-focus any potentially active | |
| 1608 | * element. This is to prevent the focus from being left in a form element that is no longer visible | |
| 1609 | * in the window, and user therefore typing garbage into the form. | |
| 1610 | * | |
| 1611 | * TODO: Currently it is not possible to use TAB to navigate between form elements. Impress.js, and | |
| 1612 | * in particular the navigation plugin, unfortunately must fully take control of the tab key, | |
| 1613 | * otherwise a user could cause the browser to scroll to a link or button that's not on the current | |
| 1614 | * step. However, it could be possible to allow tab navigation between form elements, as long as | |
| 1615 | * they are on the active step. This is a topic for further study. | |
| 1616 | * | |
| 1617 | * Copyright 2016 Henrik Ingo | |
| 1618 | * MIT License | |
| 1619 | */ | |
| 1620 | /* global document */ | |
| 1621 | ( function( document ) { | |
| 1622 | "use strict"; | |
| 1623 | var root; | |
| 1624 | var api; | |
| 1625 | ||
| 1626 | document.addEventListener( "impress:init", function( event ) { | |
| 1627 | root = event.target; | |
| 1628 | api = event.detail.api; | |
| 1629 | var gc = api.lib.gc; | |
| 1630 | ||
| 1631 | var selectors = [ "input[type=text]", "textarea", "select", "[contenteditable=true]" ]; | |
| 1632 | for ( var selector of selectors ) { | |
| 1633 | var elements = document.querySelectorAll( selector ); | |
| 1634 | if ( !elements ) { | |
| 1635 | continue; | |
| 1636 | } | |
| 1637 | ||
| 1638 | for ( var i = 0; i < elements.length; i++ ) { | |
| 1639 | var e = elements[ i ]; | |
| 1640 | gc.addEventListener( e, "keydown", function( event ) { | |
| 1641 | event.stopPropagation(); | |
| 1642 | } ); | |
| 1643 | gc.addEventListener( e, "keyup", function( event ) { | |
| 1644 | event.stopPropagation(); | |
| 1645 | } ); | |
| 1646 | } | |
| 1647 | } | |
| 1648 | }, false ); | |
| 1649 | ||
| 1650 | document.addEventListener( "impress:stepleave", function() { | |
| 1651 | document.activeElement.blur(); | |
| 1652 | }, false ); | |
| 1653 | ||
| 1654 | } )( document ); | |
| 1655 | ||
| 1656 | ||
| 1657 | /** | |
| 1658 | * Goto Plugin | |
| 1659 | * | |
| 1660 | * The goto plugin is a pre-stepleave plugin. It is executed before impress:stepleave, | |
| 1661 | * and will alter the destination where to transition next. | |
| 1662 | * | |
| 1663 | * Example: | |
| 1664 | * | |
| 1665 | * <!-- When leaving this step, go directly to "step-5" --> | |
| 1666 | * <div class="step" data-goto="step-5"> | |
| 1667 | * | |
| 1668 | * <!-- When leaving this step with next(), go directly to "step-5", instead of next step. | |
| 1669 | * If moving backwards to previous step - e.g. prev() instead of next() - | |
| 1670 | * then go to "step-1". --> | |
| 1671 | * <div class="step" data-goto-next="step-5" data-goto-prev="step-1"> | |
| 1672 | * | |
| 1673 | * <!-- data-goto-key-list and data-goto-next-list allow you to build advanced non-linear | |
| 1674 | * navigation. --> | |
| 1675 | * <div class="step" | |
| 1676 | * data-goto-key-list="ArrowUp ArrowDown ArrowRight ArrowLeft" | |
| 1677 | * data-goto-next-list="step-4 step-3 step-2 step-5"> | |
| 1678 | * | |
| 1679 | * See https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key/Key_Values for a table | |
| 1680 | * of what strings to use for each key. | |
| 1681 | * | |
| 1682 | * Copyright 2016-2017 Henrik Ingo (@henrikingo) | |
| 1683 | * Released under the MIT license. | |
| 1684 | */ | |
| 1685 | /* global window, document, impress */ | |
| 1686 | ||
| 1687 | ( function( document, window ) { | |
| 1688 | "use strict"; | |
| 1689 | var lib; | |
| 1690 | ||
| 1691 | document.addEventListener( "impress:init", function( event ) { | |
| 1692 | lib = event.detail.api.lib; | |
| 1693 | }, false ); | |
| 1694 | ||
| 1695 | var isNumber = function( numeric ) { | |
| 1696 | return !isNaN( numeric ); | |
| 1697 | }; | |
| 1698 | ||
| 1699 | var goto = function( event ) { | |
| 1700 | if ( ( !event ) || ( !event.target ) ) { | |
| 1701 | return; | |
| 1702 | } | |
| 1703 | ||
| 1704 | var data = event.target.dataset; | |
| 1705 | var steps = document.querySelectorAll( ".step" ); | |
| 1706 | ||
| 1707 | // Data-goto-key-list="" & data-goto-next-list="" ////////////////////////////////////////// | |
| 1708 | if ( data.gotoKeyList !== undefined && | |
| 1709 | data.gotoNextList !== undefined && | |
| 1710 | event.origEvent !== undefined && | |
| 1711 | event.origEvent.key !== undefined ) { | |
| 1712 | var keylist = data.gotoKeyList.split( " " ); | |
| 1713 | var nextlist = data.gotoNextList.split( " " ); | |
| 1714 | ||
| 1715 | if ( keylist.length !== nextlist.length ) { | |
| 1716 | window.console.log( | |
| 1717 | "impress goto plugin: data-goto-key-list and data-goto-next-list don't match:" | |
| 1718 | ); | |
| 1719 | window.console.log( keylist ); | |
| 1720 | window.console.log( nextlist ); | |
| 1721 | ||
| 1722 | // Don't return, allow the other categories to work despite this error | |
| 1723 | } else { | |
| 1724 | var index = keylist.indexOf( event.origEvent.key ); | |
| 1725 | if ( index >= 0 ) { | |
| 1726 | var next = nextlist[ index ]; | |
| 1727 | if ( isNumber( next ) ) { | |
| 1728 | event.detail.next = steps[ next ]; | |
| 1729 | ||
| 1730 | // If the new next element has its own transitionDuration, we're responsible | |
| 1731 | // for setting that on the event as well | |
| 1732 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1733 | event.detail.next.dataset.transitionDuration, | |
| 1734 | event.detail.transitionDuration | |
| 1735 | ); | |
| 1736 | return; | |
| 1737 | } else { | |
| 1738 | var newTarget = document.getElementById( next ); | |
| 1739 | if ( newTarget && newTarget.classList.contains( "step" ) ) { | |
| 1740 | event.detail.next = newTarget; | |
| 1741 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1742 | event.detail.next.dataset.transitionDuration, | |
| 1743 | event.detail.transitionDuration | |
| 1744 | ); | |
| 1745 | return; | |
| 1746 | } else { | |
| 1747 | window.console.log( "impress goto plugin: " + next + | |
| 1748 | " is not a step in this impress presentation." ); | |
| 1749 | } | |
| 1750 | } | |
| 1751 | } | |
| 1752 | } | |
| 1753 | } | |
| 1754 | ||
| 1755 | // Data-goto-next="" & data-goto-prev="" /////////////////////////////////////////////////// | |
| 1756 | ||
| 1757 | // Handle event.target data-goto-next attribute | |
| 1758 | if ( isNumber( data.gotoNext ) && event.detail.reason === "next" ) { | |
| 1759 | event.detail.next = steps[ data.gotoNext ]; | |
| 1760 | ||
| 1761 | // If the new next element has its own transitionDuration, we're responsible for setting | |
| 1762 | // that on the event as well | |
| 1763 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1764 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 1765 | ); | |
| 1766 | return; | |
| 1767 | } | |
| 1768 | if ( data.gotoNext && event.detail.reason === "next" ) { | |
| 1769 | var newTarget = document.getElementById( data.gotoNext ); // jshint ignore:line | |
| 1770 | if ( newTarget && newTarget.classList.contains( "step" ) ) { | |
| 1771 | event.detail.next = newTarget; | |
| 1772 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1773 | event.detail.next.dataset.transitionDuration, | |
| 1774 | event.detail.transitionDuration | |
| 1775 | ); | |
| 1776 | return; | |
| 1777 | } else { | |
| 1778 | window.console.log( "impress goto plugin: " + data.gotoNext + | |
| 1779 | " is not a step in this impress presentation." ); | |
| 1780 | } | |
| 1781 | } | |
| 1782 | ||
| 1783 | // Handle event.target data-goto-prev attribute | |
| 1784 | if ( isNumber( data.gotoPrev ) && event.detail.reason === "prev" ) { | |
| 1785 | event.detail.next = steps[ data.gotoPrev ]; | |
| 1786 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1787 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 1788 | ); | |
| 1789 | return; | |
| 1790 | } | |
| 1791 | if ( data.gotoPrev && event.detail.reason === "prev" ) { | |
| 1792 | var newTarget = document.getElementById( data.gotoPrev ); // jshint ignore:line | |
| 1793 | if ( newTarget && newTarget.classList.contains( "step" ) ) { | |
| 1794 | event.detail.next = newTarget; | |
| 1795 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1796 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 1797 | ); | |
| 1798 | return; | |
| 1799 | } else { | |
| 1800 | window.console.log( "impress goto plugin: " + data.gotoPrev + | |
| 1801 | " is not a step in this impress presentation." ); | |
| 1802 | } | |
| 1803 | } | |
| 1804 | ||
| 1805 | // Data-goto="" /////////////////////////////////////////////////////////////////////////// | |
| 1806 | ||
| 1807 | // Handle event.target data-goto attribute | |
| 1808 | if ( isNumber( data.goto ) ) { | |
| 1809 | event.detail.next = steps[ data.goto ]; | |
| 1810 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1811 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 1812 | ); | |
| 1813 | return; | |
| 1814 | } | |
| 1815 | if ( data.goto ) { | |
| 1816 | var newTarget = document.getElementById( data.goto ); // jshint ignore:line | |
| 1817 | if ( newTarget && newTarget.classList.contains( "step" ) ) { | |
| 1818 | event.detail.next = newTarget; | |
| 1819 | event.detail.transitionDuration = lib.util.toNumber( | |
| 1820 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 1821 | ); | |
| 1822 | return; | |
| 1823 | } else { | |
| 1824 | window.console.log( "impress goto plugin: " + data.goto + | |
| 1825 | " is not a step in this impress presentation." ); | |
| 1826 | } | |
| 1827 | } | |
| 1828 | }; | |
| 1829 | ||
| 1830 | // Register the plugin to be called in pre-stepleave phase | |
| 1831 | impress.addPreStepLeavePlugin( goto ); | |
| 1832 | ||
| 1833 | } )( document, window ); | |
| 1834 | ||
| 1835 | ||
| 1836 | /** | |
| 1837 | * Help popup plugin | |
| 1838 | * | |
| 1839 | * Example: | |
| 1840 | * | |
| 1841 | * <!-- Show a help popup at start, or if user presses "H" --> | |
| 1842 | * <div id="impress-help"></div> | |
| 1843 | * | |
| 1844 | * For developers: | |
| 1845 | * | |
| 1846 | * Typical use for this plugin, is for plugins that support some keypress, to add a line | |
| 1847 | * to the help popup produced by this plugin. For example "P: Presenter console". | |
| 1848 | * | |
| 1849 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 1850 | * Released under the MIT license. | |
| 1851 | */ | |
| 1852 | /* global window, document */ | |
| 1853 | ||
| 1854 | ( function( document, window ) { | |
| 1855 | "use strict"; | |
| 1856 | var rows = []; | |
| 1857 | var timeoutHandle; | |
| 1858 | ||
| 1859 | var triggerEvent = function( el, eventName, detail ) { | |
| 1860 | var event = document.createEvent( "CustomEvent" ); | |
| 1861 | event.initCustomEvent( eventName, true, true, detail ); | |
| 1862 | el.dispatchEvent( event ); | |
| 1863 | }; | |
| 1864 | ||
| 1865 | var renderHelpDiv = function() { | |
| 1866 | var helpDiv = document.getElementById( "impress-help" ); | |
| 1867 | if ( helpDiv ) { | |
| 1868 | var html = []; | |
| 1869 | for ( var row in rows ) { | |
| 1870 | for ( var arrayItem in row ) { | |
| 1871 | html.push( rows[ row ][ arrayItem ] ); | |
| 1872 | } | |
| 1873 | } | |
| 1874 | if ( html ) { | |
| 1875 | helpDiv.innerHTML = "<table>\n" + html.join( "\n" ) + "</table>\n"; | |
| 1876 | } | |
| 1877 | } | |
| 1878 | }; | |
| 1879 | ||
| 1880 | var toggleHelp = function() { | |
| 1881 | var helpDiv = document.getElementById( "impress-help" ); | |
| 1882 | if ( !helpDiv ) { | |
| 1883 | return; | |
| 1884 | } | |
| 1885 | ||
| 1886 | if ( helpDiv.style.display === "block" ) { | |
| 1887 | helpDiv.style.display = "none"; | |
| 1888 | } else { | |
| 1889 | helpDiv.style.display = "block"; | |
| 1890 | window.clearTimeout( timeoutHandle ); | |
| 1891 | } | |
| 1892 | }; | |
| 1893 | ||
| 1894 | document.addEventListener( "keyup", function( event ) { | |
| 1895 | ||
| 1896 | if ( event.keyCode === 72 ) { // "h" | |
| 1897 | event.preventDefault(); | |
| 1898 | toggleHelp(); | |
| 1899 | } | |
| 1900 | }, false ); | |
| 1901 | ||
| 1902 | // API | |
| 1903 | // Other plugins can add help texts, typically if they support an action on a keypress. | |
| 1904 | /** | |
| 1905 | * Add a help text to the help popup. | |
| 1906 | * | |
| 1907 | * :param: e.detail.command Example: "H" | |
| 1908 | * :param: e.detail.text Example: "Show this help." | |
| 1909 | * :param: e.detail.row Row index from 0 to 9 where to place this help text. Example: 0 | |
| 1910 | */ | |
| 1911 | document.addEventListener( "impress:help:add", function( e ) { | |
| 1912 | ||
| 1913 | // The idea is for the sender of the event to supply a unique row index, used for sorting. | |
| 1914 | // But just in case two plugins would ever use the same row index, we wrap each row into | |
| 1915 | // its own array. If there are more than one entry for the same index, they are shown in | |
| 1916 | // first come, first serve ordering. | |
| 1917 | var rowIndex = e.detail.row; | |
| 1918 | if ( typeof rows[ rowIndex ] !== "object" || !rows[ rowIndex ].isArray ) { | |
| 1919 | rows[ rowIndex ] = []; | |
| 1920 | } | |
| 1921 | rows[ e.detail.row ].push( "<tr><td><strong>" + e.detail.command + "</strong></td><td>" + | |
| 1922 | e.detail.text + "</td></tr>" ); | |
| 1923 | renderHelpDiv(); | |
| 1924 | } ); | |
| 1925 | ||
| 1926 | document.addEventListener( "impress:init", function( e ) { | |
| 1927 | renderHelpDiv(); | |
| 1928 | ||
| 1929 | // At start, show the help for 7 seconds. | |
| 1930 | var helpDiv = document.getElementById( "impress-help" ); | |
| 1931 | if ( helpDiv ) { | |
| 1932 | helpDiv.style.display = "block"; | |
| 1933 | timeoutHandle = window.setTimeout( function() { | |
| 1934 | var helpDiv = document.getElementById( "impress-help" ); | |
| 1935 | helpDiv.style.display = "none"; | |
| 1936 | }, 7000 ); | |
| 1937 | ||
| 1938 | // Regster callback to empty the help div on teardown | |
| 1939 | var api = e.detail.api; | |
| 1940 | api.lib.gc.pushCallback( function() { | |
| 1941 | window.clearTimeout( timeoutHandle ); | |
| 1942 | helpDiv.style.display = ""; | |
| 1943 | helpDiv.innerHTML = ""; | |
| 1944 | rows = []; | |
| 1945 | } ); | |
| 1946 | } | |
| 1947 | ||
| 1948 | // Use our own API to register the help text for "h" | |
| 1949 | triggerEvent( document, "impress:help:add", | |
| 1950 | { command: "H", text: "Show this help", row: 0 } ); | |
| 1951 | } ); | |
| 1952 | ||
| 1953 | } )( document, window ); | |
| 1954 | ||
| 1955 | ||
| 1956 | /** | |
| 1957 | * Adds a presenter console to impress.js | |
| 1958 | * | |
| 1959 | * MIT Licensed, see license.txt. | |
| 1960 | * | |
| 1961 | * Copyright 2012, 2013, 2015 impress-console contributors (see README.txt) | |
| 1962 | * | |
| 1963 | * version: 1.3-dev | |
| 1964 | * | |
| 1965 | */ | |
| 1966 | ||
| 1967 | // This file contains so much HTML, that we will just respectfully disagree about js | |
| 1968 | /* jshint quotmark:single */ | |
| 1969 | /* global navigator, top, setInterval, clearInterval, document, window */ | |
| 1970 | ||
| 1971 | ( function( document, window ) { | |
| 1972 | 'use strict'; | |
| 1973 | ||
| 1974 | // TODO: Move this to src/lib/util.js | |
| 1975 | var triggerEvent = function( el, eventName, detail ) { | |
| 1976 | var event = document.createEvent( 'CustomEvent' ); | |
| 1977 | event.initCustomEvent( eventName, true, true, detail ); | |
| 1978 | el.dispatchEvent( event ); | |
| 1979 | }; | |
| 1980 | ||
| 1981 | // Create Language object depending on browsers language setting | |
| 1982 | var lang; | |
| 1983 | switch ( navigator.language ) { | |
| 1984 | case 'de': | |
| 1985 | lang = { | |
| 1986 | 'noNotes': '<div class="noNotes">Keine Notizen hierzu</div>', | |
| 1987 | 'restart': 'Neustart', | |
| 1988 | 'clickToOpen': 'Klicken um Sprecherkonsole zu öffnen', | |
| 1989 | 'prev': 'zurück', | |
| 1990 | 'next': 'weiter', | |
| 1991 | 'loading': 'initalisiere', | |
| 1992 | 'ready': 'Bereit', | |
| 1993 | 'moving': 'in Bewegung', | |
| 1994 | 'useAMPM': false | |
| 1995 | }; | |
| 1996 | break; | |
| 1997 | case 'en': // jshint ignore:line | |
| 1998 | default : // jshint ignore:line | |
| 1999 | lang = { | |
| 2000 | 'noNotes': '<div class="noNotes">No notes for this step</div>', | |
| 2001 | 'restart': 'Restart', | |
| 2002 | 'clickToOpen': 'Click to open speaker console', | |
| 2003 | 'prev': 'Prev', | |
| 2004 | 'next': 'Next', | |
| 2005 | 'loading': 'Loading', | |
| 2006 | 'ready': 'Ready', | |
| 2007 | 'moving': 'Moving', | |
| 2008 | 'useAMPM': false | |
| 2009 | }; | |
| 2010 | break; | |
| 2011 | } | |
| 2012 | ||
| 2013 | // Settings to set iframe in speaker console | |
| 2014 | const preViewDefaultFactor = 0.7; | |
| 2015 | const preViewMinimumFactor = 0.5; | |
| 2016 | const preViewGap = 4; | |
| 2017 | ||
| 2018 | // This is the default template for the speaker console window | |
| 2019 | const consoleTemplate = '<!DOCTYPE html>' + | |
| 2020 | '<html id="impressconsole"><head>' + | |
| 2021 | ||
| 2022 | // Order is important: If user provides a cssFile, those will win, because they're later | |
| 2023 | '{{cssStyle}}' + | |
| 2024 | '{{cssLink}}' + | |
| 2025 | '</head><body>' + | |
| 2026 | '<div id="console">' + | |
| 2027 | '<div id="views">' + | |
| 2028 | '<iframe id="slideView" scrolling="no"></iframe>' + | |
| 2029 | '<iframe id="preView" scrolling="no"></iframe>' + | |
| 2030 | '<div id="blocker"></div>' + | |
| 2031 | '</div>' + | |
| 2032 | '<div id="notes"></div>' + | |
| 2033 | '</div>' + | |
| 2034 | '<div id="controls"> ' + | |
| 2035 | '<div id="prev"><a href="#" onclick="impress().prev(); return false;" />' + | |
| 2036 | '{{prev}}</a></div>' + | |
| 2037 | '<div id="next"><a href="#" onclick="impress().next(); return false;" />' + | |
| 2038 | '{{next}}</a></div>' + | |
| 2039 | '<div id="clock">--:--</div>' + | |
| 2040 | '<div id="timer" onclick="timerReset()">00m 00s</div>' + | |
| 2041 | '<div id="status">{{loading}}</div>' + | |
| 2042 | '</div>' + | |
| 2043 | '</body></html>'; | |
| 2044 | ||
| 2045 | // Default css location | |
| 2046 | var cssFileOldDefault = 'css/impressConsole.css'; | |
| 2047 | var cssFile = undefined; // jshint ignore:line | |
| 2048 | ||
| 2049 | // Css for styling iframs on the console | |
| 2050 | var cssFileIframeOldDefault = 'css/iframe.css'; | |
| 2051 | var cssFileIframe = undefined; // jshint ignore:line | |
| 2052 | ||
| 2053 | // All console windows, so that you can call impressConsole() repeatedly. | |
| 2054 | var allConsoles = {}; | |
| 2055 | ||
| 2056 | // Zero padding helper function: | |
| 2057 | var zeroPad = function( i ) { | |
| 2058 | return ( i < 10 ? '0' : '' ) + i; | |
| 2059 | }; | |
| 2060 | ||
| 2061 | // The console object | |
| 2062 | var impressConsole = window.impressConsole = function( rootId ) { | |
| 2063 | ||
| 2064 | rootId = rootId || 'impress'; | |
| 2065 | ||
| 2066 | if ( allConsoles[ rootId ] ) { | |
| 2067 | return allConsoles[ rootId ]; | |
| 2068 | } | |
| 2069 | ||
| 2070 | // Root presentation elements | |
| 2071 | var root = document.getElementById( rootId ); | |
| 2072 | ||
| 2073 | var consoleWindow = null; | |
| 2074 | ||
| 2075 | var nextStep = function() { | |
| 2076 | var classes = ''; | |
| 2077 | var nextElement = document.querySelector( '.active' ); | |
| 2078 | ||
| 2079 | // Return to parents as long as there is no next sibling | |
| 2080 | while ( !nextElement.nextElementSibling && nextElement.parentNode ) { | |
| 2081 | nextElement = nextElement.parentNode; | |
| 2082 | } | |
| 2083 | nextElement = nextElement.nextElementSibling; | |
| 2084 | while ( nextElement ) { | |
| 2085 | classes = nextElement.attributes[ 'class' ]; | |
| 2086 | if ( classes && classes.value.indexOf( 'step' ) !== -1 ) { | |
| 2087 | consoleWindow.document.getElementById( 'blocker' ).innerHTML = lang.next; | |
| 2088 | return nextElement; | |
| 2089 | } | |
| 2090 | ||
| 2091 | if ( nextElement.firstElementChild ) { // First go into deep | |
| 2092 | nextElement = nextElement.firstElementChild; | |
| 2093 | } else { | |
| 2094 | ||
| 2095 | // Go to next sibling or through parents until there is a next sibling | |
| 2096 | while ( !nextElement.nextElementSibling && nextElement.parentNode ) { | |
| 2097 | nextElement = nextElement.parentNode; | |
| 2098 | } | |
| 2099 | nextElement = nextElement.nextElementSibling; | |
| 2100 | } | |
| 2101 | } | |
| 2102 | ||
| 2103 | // No next element. Pick the first | |
| 2104 | consoleWindow.document.getElementById( 'blocker' ).innerHTML = lang.restart; | |
| 2105 | return document.querySelector( '.step' ); | |
| 2106 | }; | |
| 2107 | ||
| 2108 | // Sync the notes to the step | |
| 2109 | var onStepLeave = function() { | |
| 2110 | if ( consoleWindow ) { | |
| 2111 | ||
| 2112 | // Set notes to next steps notes. | |
| 2113 | var newNotes = document.querySelector( '.active' ).querySelector( '.notes' ); | |
| 2114 | if ( newNotes ) { | |
| 2115 | newNotes = newNotes.innerHTML; | |
| 2116 | } else { | |
| 2117 | newNotes = lang.noNotes; | |
| 2118 | } | |
| 2119 | consoleWindow.document.getElementById( 'notes' ).innerHTML = newNotes; | |
| 2120 | ||
| 2121 | // Set the views | |
| 2122 | var baseURL = document.URL.substring( 0, document.URL.search( '#/' ) ); | |
| 2123 | var slideSrc = baseURL + '#' + document.querySelector( '.active' ).id; | |
| 2124 | var preSrc = baseURL + '#' + nextStep().id; | |
| 2125 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2126 | ||
| 2127 | // Setting them when they are already set causes glithes in Firefox, so check first: | |
| 2128 | if ( slideView.src !== slideSrc ) { | |
| 2129 | slideView.src = slideSrc; | |
| 2130 | } | |
| 2131 | var preView = consoleWindow.document.getElementById( 'preView' ); | |
| 2132 | if ( preView.src !== preSrc ) { | |
| 2133 | preView.src = preSrc; | |
| 2134 | } | |
| 2135 | ||
| 2136 | consoleWindow.document.getElementById( 'status' ).innerHTML = | |
| 2137 | '<span class="moving">' + lang.moving + '</span>'; | |
| 2138 | } | |
| 2139 | }; | |
| 2140 | ||
| 2141 | // Sync the previews to the step | |
| 2142 | var onStepEnter = function() { | |
| 2143 | if ( consoleWindow ) { | |
| 2144 | ||
| 2145 | // We do everything here again, because if you stopped the previos step to | |
| 2146 | // early, the onstepleave trigger is not called for that step, so | |
| 2147 | // we need this to sync things. | |
| 2148 | var newNotes = document.querySelector( '.active' ).querySelector( '.notes' ); | |
| 2149 | if ( newNotes ) { | |
| 2150 | newNotes = newNotes.innerHTML; | |
| 2151 | } else { | |
| 2152 | newNotes = lang.noNotes; | |
| 2153 | } | |
| 2154 | var notes = consoleWindow.document.getElementById( 'notes' ); | |
| 2155 | notes.innerHTML = newNotes; | |
| 2156 | notes.scrollTop = 0; | |
| 2157 | ||
| 2158 | // Set the views | |
| 2159 | var baseURL = document.URL.substring( 0, document.URL.search( '#/' ) ); | |
| 2160 | var slideSrc = baseURL + '#' + document.querySelector( '.active' ).id; | |
| 2161 | var preSrc = baseURL + '#' + nextStep().id; | |
| 2162 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2163 | ||
| 2164 | // Setting them when they are already set causes glithes in Firefox, so check first: | |
| 2165 | if ( slideView.src !== slideSrc ) { | |
| 2166 | slideView.src = slideSrc; | |
| 2167 | } | |
| 2168 | var preView = consoleWindow.document.getElementById( 'preView' ); | |
| 2169 | if ( preView.src !== preSrc ) { | |
| 2170 | preView.src = preSrc; | |
| 2171 | } | |
| 2172 | ||
| 2173 | consoleWindow.document.getElementById( 'status' ).innerHTML = | |
| 2174 | '<span class="ready">' + lang.ready + '</span>'; | |
| 2175 | } | |
| 2176 | }; | |
| 2177 | ||
| 2178 | // Sync substeps | |
| 2179 | var onSubstep = function( event ) { | |
| 2180 | if ( consoleWindow ) { | |
| 2181 | if ( event.detail.reason === 'next' ) { | |
| 2182 | onSubstepShow(); | |
| 2183 | } | |
| 2184 | if ( event.detail.reason === 'prev' ) { | |
| 2185 | onSubstepHide(); | |
| 2186 | } | |
| 2187 | } | |
| 2188 | }; | |
| 2189 | ||
| 2190 | var onSubstepShow = function() { | |
| 2191 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2192 | triggerEventInView( slideView, 'impress:substep:show' ); | |
| 2193 | }; | |
| 2194 | ||
| 2195 | var onSubstepHide = function() { | |
| 2196 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2197 | triggerEventInView( slideView, 'impress:substep:hide' ); | |
| 2198 | }; | |
| 2199 | ||
| 2200 | var triggerEventInView = function( frame, eventName, detail ) { | |
| 2201 | ||
| 2202 | // Note: Unfortunately Chrome does not allow createEvent on file:// URLs, so this won't | |
| 2203 | // work. This does work on Firefox, and should work if viewing the presentation on a | |
| 2204 | // http:// URL on Chrome. | |
| 2205 | var event = frame.contentDocument.createEvent( 'CustomEvent' ); | |
| 2206 | event.initCustomEvent( eventName, true, true, detail ); | |
| 2207 | frame.contentDocument.dispatchEvent( event ); | |
| 2208 | }; | |
| 2209 | ||
| 2210 | var spaceHandler = function() { | |
| 2211 | var notes = consoleWindow.document.getElementById( 'notes' ); | |
| 2212 | if ( notes.scrollTopMax - notes.scrollTop > 20 ) { | |
| 2213 | notes.scrollTop = notes.scrollTop + notes.clientHeight * 0.8; | |
| 2214 | } else { | |
| 2215 | window.impress().next(); | |
| 2216 | } | |
| 2217 | }; | |
| 2218 | ||
| 2219 | var timerReset = function() { | |
| 2220 | consoleWindow.timerStart = new Date(); | |
| 2221 | }; | |
| 2222 | ||
| 2223 | // Show a clock | |
| 2224 | var clockTick = function() { | |
| 2225 | var now = new Date(); | |
| 2226 | var hours = now.getHours(); | |
| 2227 | var minutes = now.getMinutes(); | |
| 2228 | var seconds = now.getSeconds(); | |
| 2229 | var ampm = ''; | |
| 2230 | ||
| 2231 | if ( lang.useAMPM ) { | |
| 2232 | ampm = ( hours < 12 ) ? 'AM' : 'PM'; | |
| 2233 | hours = ( hours > 12 ) ? hours - 12 : hours; | |
| 2234 | hours = ( hours === 0 ) ? 12 : hours; | |
| 2235 | } | |
| 2236 | ||
| 2237 | // Clock | |
| 2238 | var clockStr = zeroPad( hours ) + ':' + zeroPad( minutes ) + ':' + zeroPad( seconds ) + | |
| 2239 | ' ' + ampm; | |
| 2240 | consoleWindow.document.getElementById( 'clock' ).firstChild.nodeValue = clockStr; | |
| 2241 | ||
| 2242 | // Timer | |
| 2243 | seconds = Math.floor( ( now - consoleWindow.timerStart ) / 1000 ); | |
| 2244 | minutes = Math.floor( seconds / 60 ); | |
| 2245 | seconds = Math.floor( seconds % 60 ); | |
| 2246 | consoleWindow.document.getElementById( 'timer' ).firstChild.nodeValue = | |
| 2247 | zeroPad( minutes ) + 'm ' + zeroPad( seconds ) + 's'; | |
| 2248 | ||
| 2249 | if ( !consoleWindow.initialized ) { | |
| 2250 | ||
| 2251 | // Nudge the slide windows after load, or they will scrolled wrong on Firefox. | |
| 2252 | consoleWindow.document.getElementById( 'slideView' ).contentWindow.scrollTo( 0, 0 ); | |
| 2253 | consoleWindow.document.getElementById( 'preView' ).contentWindow.scrollTo( 0, 0 ); | |
| 2254 | consoleWindow.initialized = true; | |
| 2255 | } | |
| 2256 | }; | |
| 2257 | ||
| 2258 | var registerKeyEvent = function( keyCodes, handler, window ) { | |
| 2259 | if ( window === undefined ) { | |
| 2260 | window = consoleWindow; | |
| 2261 | } | |
| 2262 | ||
| 2263 | // Prevent default keydown action when one of supported key is pressed | |
| 2264 | window.document.addEventListener( 'keydown', function( event ) { | |
| 2265 | if ( !event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey && | |
| 2266 | keyCodes.indexOf( event.keyCode ) !== -1 ) { | |
| 2267 | event.preventDefault(); | |
| 2268 | } | |
| 2269 | }, false ); | |
| 2270 | ||
| 2271 | // Trigger impress action on keyup | |
| 2272 | window.document.addEventListener( 'keyup', function( event ) { | |
| 2273 | if ( !event.ctrlKey && !event.altKey && !event.shiftKey && !event.metaKey && | |
| 2274 | keyCodes.indexOf( event.keyCode ) !== -1 ) { | |
| 2275 | handler(); | |
| 2276 | event.preventDefault(); | |
| 2277 | } | |
| 2278 | }, false ); | |
| 2279 | }; | |
| 2280 | ||
| 2281 | var consoleOnLoad = function() { | |
| 2282 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2283 | var preView = consoleWindow.document.getElementById( 'preView' ); | |
| 2284 | ||
| 2285 | // Firefox: | |
| 2286 | slideView.contentDocument.body.classList.add( 'impress-console' ); | |
| 2287 | preView.contentDocument.body.classList.add( 'impress-console' ); | |
| 2288 | if ( cssFileIframe !== undefined ) { | |
| 2289 | slideView.contentDocument.head.insertAdjacentHTML( | |
| 2290 | 'beforeend', | |
| 2291 | '<link rel="stylesheet" type="text/css" href="' + cssFileIframe + '">' | |
| 2292 | ); | |
| 2293 | preView.contentDocument.head.insertAdjacentHTML( | |
| 2294 | 'beforeend', | |
| 2295 | '<link rel="stylesheet" type="text/css" href="' + cssFileIframe + '">' | |
| 2296 | ); | |
| 2297 | } | |
| 2298 | ||
| 2299 | // Chrome: | |
| 2300 | slideView.addEventListener( 'load', function() { | |
| 2301 | slideView.contentDocument.body.classList.add( 'impress-console' ); | |
| 2302 | if ( cssFileIframe !== undefined ) { | |
| 2303 | slideView.contentDocument.head.insertAdjacentHTML( | |
| 2304 | 'beforeend', | |
| 2305 | '<link rel="stylesheet" type="text/css" href="' + | |
| 2306 | cssFileIframe + '">' | |
| 2307 | ); | |
| 2308 | } | |
| 2309 | } ); | |
| 2310 | preView.addEventListener( 'load', function() { | |
| 2311 | preView.contentDocument.body.classList.add( 'impress-console' ); | |
| 2312 | if ( cssFileIframe !== undefined ) { | |
| 2313 | preView.contentDocument.head.insertAdjacentHTML( | |
| 2314 | 'beforeend', | |
| 2315 | '<link rel="stylesheet" type="text/css" href="' + | |
| 2316 | cssFileIframe + '">' ); | |
| 2317 | } | |
| 2318 | } ); | |
| 2319 | }; | |
| 2320 | ||
| 2321 | var open = function() { | |
| 2322 | if ( top.isconsoleWindow ) { | |
| 2323 | return; | |
| 2324 | } | |
| 2325 | ||
| 2326 | if ( consoleWindow && !consoleWindow.closed ) { | |
| 2327 | consoleWindow.focus(); | |
| 2328 | } else { | |
| 2329 | consoleWindow = window.open( '', 'impressConsole' ); | |
| 2330 | ||
| 2331 | // If opening failes this may be because the browser prevents this from | |
| 2332 | // not (or less) interactive JavaScript... | |
| 2333 | if ( consoleWindow == null ) { | |
| 2334 | ||
| 2335 | // ... so I add a button to klick. | |
| 2336 | // workaround on firefox | |
| 2337 | var message = document.createElement( 'div' ); | |
| 2338 | message.id = 'impress-console-button'; | |
| 2339 | message.style.position = 'fixed'; | |
| 2340 | message.style.left = 0; | |
| 2341 | message.style.top = 0; | |
| 2342 | message.style.right = 0; | |
| 2343 | message.style.bottom = 0; | |
| 2344 | message.style.backgroundColor = 'rgba(255, 255, 255, 0.9)'; | |
| 2345 | var clickStr = 'var x = document.getElementById(\'impress-console-button\');' + | |
| 2346 | 'x.parentNode.removeChild(x);' + | |
| 2347 | 'var r = document.getElementById(\'' + rootId + '\');' + | |
| 2348 | 'impress(\'' + rootId + | |
| 2349 | '\').lib.util.triggerEvent(r, \'impress:console:open\', {})'; | |
| 2350 | var styleStr = 'margin: 25vh 25vw;width:50vw;height:50vh;'; | |
| 2351 | message.innerHTML = '<button style="' + styleStr + '" ' + | |
| 2352 | 'onclick="' + clickStr + '">' + | |
| 2353 | lang.clickToOpen + | |
| 2354 | '</button>'; | |
| 2355 | document.body.appendChild( message ); | |
| 2356 | return; | |
| 2357 | } | |
| 2358 | ||
| 2359 | var cssLink = ''; | |
| 2360 | if ( cssFile !== undefined ) { | |
| 2361 | cssLink = '<link rel="stylesheet" type="text/css" media="screen" href="' + | |
| 2362 | cssFile + '">'; | |
| 2363 | } | |
| 2364 | ||
| 2365 | // This sets the window location to the main window location, so css can be loaded: | |
| 2366 | consoleWindow.document.open(); | |
| 2367 | ||
| 2368 | // Write the template: | |
| 2369 | consoleWindow.document.write( | |
| 2370 | ||
| 2371 | // CssStyleStr is lots of inline <style></style> defined at the end of this file | |
| 2372 | consoleTemplate.replace( '{{cssStyle}}', cssStyleStr() ) | |
| 2373 | .replace( '{{cssLink}}', cssLink ) | |
| 2374 | .replace( /{{.*?}}/gi, function( x ) { | |
| 2375 | return lang[ x.substring( 2, x.length - 2 ) ]; } | |
| 2376 | ) | |
| 2377 | ); | |
| 2378 | consoleWindow.document.title = 'Speaker Console (' + document.title + ')'; | |
| 2379 | consoleWindow.impress = window.impress; | |
| 2380 | ||
| 2381 | // We set this flag so we can detect it later, to prevent infinite popups. | |
| 2382 | consoleWindow.isconsoleWindow = true; | |
| 2383 | ||
| 2384 | // Set the onload function: | |
| 2385 | consoleWindow.onload = consoleOnLoad; | |
| 2386 | ||
| 2387 | // Add clock tick | |
| 2388 | consoleWindow.timerStart = new Date(); | |
| 2389 | consoleWindow.timerReset = timerReset; | |
| 2390 | consoleWindow.clockInterval = setInterval( allConsoles[ rootId ].clockTick, 1000 ); | |
| 2391 | ||
| 2392 | // Keyboard navigation handlers | |
| 2393 | // 33: pg up, 37: left, 38: up | |
| 2394 | registerKeyEvent( [ 33, 37, 38 ], window.impress().prev ); | |
| 2395 | ||
| 2396 | // 34: pg down, 39: right, 40: down | |
| 2397 | registerKeyEvent( [ 34, 39, 40 ], window.impress().next ); | |
| 2398 | ||
| 2399 | // 32: space | |
| 2400 | registerKeyEvent( [ 32 ], spaceHandler ); | |
| 2401 | ||
| 2402 | // 82: R | |
| 2403 | registerKeyEvent( [ 82 ], timerReset ); | |
| 2404 | ||
| 2405 | // Cleanup | |
| 2406 | consoleWindow.onbeforeunload = function() { | |
| 2407 | ||
| 2408 | // I don't know why onunload doesn't work here. | |
| 2409 | clearInterval( consoleWindow.clockInterval ); | |
| 2410 | }; | |
| 2411 | ||
| 2412 | // It will need a little nudge on Firefox, but only after loading: | |
| 2413 | onStepEnter(); | |
| 2414 | consoleWindow.initialized = false; | |
| 2415 | consoleWindow.document.close(); | |
| 2416 | ||
| 2417 | //Catch any window resize to pass size on | |
| 2418 | window.onresize = resize; | |
| 2419 | consoleWindow.onresize = resize; | |
| 2420 | ||
| 2421 | return consoleWindow; | |
| 2422 | } | |
| 2423 | }; | |
| 2424 | ||
| 2425 | var resize = function() { | |
| 2426 | var slideView = consoleWindow.document.getElementById( 'slideView' ); | |
| 2427 | var preView = consoleWindow.document.getElementById( 'preView' ); | |
| 2428 | ||
| 2429 | // Get ratio of presentation | |
| 2430 | var ratio = window.innerHeight / window.innerWidth; | |
| 2431 | ||
| 2432 | // Get size available for views | |
| 2433 | var views = consoleWindow.document.getElementById( 'views' ); | |
| 2434 | ||
| 2435 | // SlideView may have a border or some padding: | |
| 2436 | // asuming same border width on both direktions | |
| 2437 | var delta = slideView.offsetWidth - slideView.clientWidth; | |
| 2438 | ||
| 2439 | // Set views | |
| 2440 | var slideViewWidth = ( views.clientWidth - delta ); | |
| 2441 | var slideViewHeight = Math.floor( slideViewWidth * ratio ); | |
| 2442 | ||
| 2443 | var preViewTop = slideViewHeight + preViewGap; | |
| 2444 | ||
| 2445 | var preViewWidth = Math.floor( slideViewWidth * preViewDefaultFactor ); | |
| 2446 | var preViewHeight = Math.floor( slideViewHeight * preViewDefaultFactor ); | |
| 2447 | ||
| 2448 | // Shrink preview to fit into space available | |
| 2449 | if ( views.clientHeight - delta < preViewTop + preViewHeight ) { | |
| 2450 | preViewHeight = views.clientHeight - delta - preViewTop; | |
| 2451 | preViewWidth = Math.floor( preViewHeight / ratio ); | |
| 2452 | } | |
| 2453 | ||
| 2454 | // If preview is not high enough forget ratios! | |
| 2455 | if ( preViewWidth <= Math.floor( slideViewWidth * preViewMinimumFactor ) ) { | |
| 2456 | slideViewWidth = ( views.clientWidth - delta ); | |
| 2457 | slideViewHeight = Math.floor( ( views.clientHeight - delta - preViewGap ) / | |
| 2458 | ( 1 + preViewMinimumFactor ) ); | |
| 2459 | ||
| 2460 | preViewTop = slideViewHeight + preViewGap; | |
| 2461 | ||
| 2462 | preViewWidth = Math.floor( slideViewWidth * preViewMinimumFactor ); | |
| 2463 | preViewHeight = views.clientHeight - delta - preViewTop; | |
| 2464 | } | |
| 2465 | ||
| 2466 | // Set the calculated into styles | |
| 2467 | slideView.style.width = slideViewWidth + 'px'; | |
| 2468 | slideView.style.height = slideViewHeight + 'px'; | |
| 2469 | ||
| 2470 | preView.style.top = preViewTop + 'px'; | |
| 2471 | ||
| 2472 | preView.style.width = preViewWidth + 'px'; | |
| 2473 | preView.style.height = preViewHeight + 'px'; | |
| 2474 | }; | |
| 2475 | ||
| 2476 | var _init = function( cssConsole, cssIframe ) { | |
| 2477 | if ( cssConsole !== undefined ) { | |
| 2478 | cssFile = cssConsole; | |
| 2479 | } | |
| 2480 | ||
| 2481 | // You can also specify the css in the presentation root div: | |
| 2482 | // <div id="impress" data-console-css=..." data-console-css-iframe="..."> | |
| 2483 | else if ( root.dataset.consoleCss !== undefined ) { | |
| 2484 | cssFile = root.dataset.consoleCss; | |
| 2485 | } | |
| 2486 | ||
| 2487 | if ( cssIframe !== undefined ) { | |
| 2488 | cssFileIframe = cssIframe; | |
| 2489 | } else if ( root.dataset.consoleCssIframe !== undefined ) { | |
| 2490 | cssFileIframe = root.dataset.consoleCssIframe; | |
| 2491 | } | |
| 2492 | ||
| 2493 | // Register the event | |
| 2494 | root.addEventListener( 'impress:stepleave', onStepLeave ); | |
| 2495 | root.addEventListener( 'impress:stepenter', onStepEnter ); | |
| 2496 | root.addEventListener( 'impress:substep:stepleaveaborted', onSubstep ); | |
| 2497 | root.addEventListener( 'impress:substep:show', onSubstepShow ); | |
| 2498 | root.addEventListener( 'impress:substep:hide', onSubstepHide ); | |
| 2499 | ||
| 2500 | //When the window closes, clean up after ourselves. | |
| 2501 | window.onunload = function() { | |
| 2502 | if ( consoleWindow && !consoleWindow.closed ) { | |
| 2503 | consoleWindow.close(); | |
| 2504 | } | |
| 2505 | }; | |
| 2506 | ||
| 2507 | //Open speaker console when they press 'p' | |
| 2508 | registerKeyEvent( [ 80 ], open, window ); | |
| 2509 | ||
| 2510 | //Btw, you can also launch console automatically: | |
| 2511 | //<div id="impress" data-console-autolaunch="true"> | |
| 2512 | if ( root.dataset.consoleAutolaunch === 'true' ) { | |
| 2513 | open(); | |
| 2514 | } | |
| 2515 | }; | |
| 2516 | ||
| 2517 | var init = function( cssConsole, cssIframe ) { | |
| 2518 | if ( ( cssConsole === undefined || cssConsole === cssFileOldDefault ) && | |
| 2519 | ( cssIframe === undefined || cssIframe === cssFileIframeOldDefault ) ) { | |
| 2520 | window.console.log( 'impressConsole().init() is deprecated. ' + | |
| 2521 | 'impressConsole is now initialized automatically when you ' + | |
| 2522 | 'call impress().init().' ); | |
| 2523 | } | |
| 2524 | _init( cssConsole, cssIframe ); | |
| 2525 | }; | |
| 2526 | ||
| 2527 | // New API for impress.js plugins is based on using events | |
| 2528 | root.addEventListener( 'impress:console:open', function() { | |
| 2529 | open(); | |
| 2530 | } ); | |
| 2531 | ||
| 2532 | /** | |
| 2533 | * Register a key code to an event handler | |
| 2534 | * | |
| 2535 | * :param: event.detail.keyCodes List of key codes | |
| 2536 | * :param: event.detail.handler A function registered as the event handler | |
| 2537 | * :param: event.detail.window The console window to register the keycode in | |
| 2538 | */ | |
| 2539 | root.addEventListener( 'impress:console:registerKeyEvent', function( event ) { | |
| 2540 | registerKeyEvent( event.detail.keyCodes, event.detail.handler, event.detail.window ); | |
| 2541 | } ); | |
| 2542 | ||
| 2543 | // Return the object | |
| 2544 | allConsoles[ rootId ] = { init: init, open: open, clockTick: clockTick, | |
| 2545 | registerKeyEvent: registerKeyEvent, _init: _init }; | |
| 2546 | return allConsoles[ rootId ]; | |
| 2547 | ||
| 2548 | }; | |
| 2549 | ||
| 2550 | // This initializes impressConsole automatically when initializing impress itself | |
| 2551 | document.addEventListener( 'impress:init', function( event ) { | |
| 2552 | ||
| 2553 | // Note: impressConsole wants the id string, not the DOM element directly | |
| 2554 | impressConsole( event.target.id )._init(); | |
| 2555 | ||
| 2556 | // Add 'P' to the help popup | |
| 2557 | triggerEvent( document, 'impress:help:add', | |
| 2558 | { command: 'P', text: 'Presenter console', row: 10 } ); | |
| 2559 | } ); | |
| 2560 | ||
| 2561 | // Returns a string to be used inline as a css <style> element in the console window. | |
| 2562 | // Apologies for length, but hiding it here at the end to keep it away from rest of the code. | |
| 2563 | var cssStyleStr = function() { | |
| 2564 | return `<style> | |
| 2565 | #impressconsole body { | |
| 2566 | background-color: rgb(255, 255, 255); | |
| 2567 | padding: 0; | |
| 2568 | margin: 0; | |
| 2569 | font-family: verdana, arial, sans-serif; | |
| 2570 | font-size: 2vw; | |
| 2571 | } | |
| 2572 | ||
| 2573 | #impressconsole div#console { | |
| 2574 | position: absolute; | |
| 2575 | top: 0.5vw; | |
| 2576 | left: 0.5vw; | |
| 2577 | right: 0.5vw; | |
| 2578 | bottom: 3vw; | |
| 2579 | margin: 0; | |
| 2580 | } | |
| 2581 | ||
| 2582 | #impressconsole div#views, #impressconsole div#notes { | |
| 2583 | position: absolute; | |
| 2584 | top: 0; | |
| 2585 | bottom: 0; | |
| 2586 | } | |
| 2587 | ||
| 2588 | #impressconsole div#views { | |
| 2589 | left: 0; | |
| 2590 | right: 50vw; | |
| 2591 | overflow: hidden; | |
| 2592 | } | |
| 2593 | ||
| 2594 | #impressconsole div#blocker { | |
| 2595 | position: absolute; | |
| 2596 | right: 0; | |
| 2597 | bottom: 0; | |
| 2598 | } | |
| 2599 | ||
| 2600 | #impressconsole div#notes { | |
| 2601 | left: 50vw; | |
| 2602 | right: 0; | |
| 2603 | overflow-x: hidden; | |
| 2604 | overflow-y: auto; | |
| 2605 | padding: 0.3ex; | |
| 2606 | background-color: rgb(255, 255, 255); | |
| 2607 | border: solid 1px rgb(120, 120, 120); | |
| 2608 | } | |
| 2609 | ||
| 2610 | #impressconsole div#notes .noNotes { | |
| 2611 | color: rgb(200, 200, 200); | |
| 2612 | } | |
| 2613 | ||
| 2614 | #impressconsole div#notes p { | |
| 2615 | margin-top: 0; | |
| 2616 | } | |
| 2617 | ||
| 2618 | #impressconsole iframe { | |
| 2619 | position: absolute; | |
| 2620 | margin: 0; | |
| 2621 | padding: 0; | |
| 2622 | left: 0; | |
| 2623 | border: solid 1px rgb(120, 120, 120); | |
| 2624 | } | |
| 2625 | ||
| 2626 | #impressconsole iframe#slideView { | |
| 2627 | top: 0; | |
| 2628 | width: 49vw; | |
| 2629 | height: 49vh; | |
| 2630 | } | |
| 2631 | ||
| 2632 | #impressconsole iframe#preView { | |
| 2633 | opacity: 0.7; | |
| 2634 | top: 50vh; | |
| 2635 | width: 30vw; | |
| 2636 | height: 30vh; | |
| 2637 | } | |
| 2638 | ||
| 2639 | #impressconsole div#controls { | |
| 2640 | margin: 0; | |
| 2641 | position: absolute; | |
| 2642 | bottom: 0.25vw; | |
| 2643 | left: 0.5vw; | |
| 2644 | right: 0.5vw; | |
| 2645 | height: 2.5vw; | |
| 2646 | background-color: rgb(255, 255, 255); | |
| 2647 | background-color: rgba(255, 255, 255, 0.6); | |
| 2648 | } | |
| 2649 | ||
| 2650 | #impressconsole div#prev, div#next { | |
| 2651 | } | |
| 2652 | ||
| 2653 | #impressconsole div#prev a, #impressconsole div#next a { | |
| 2654 | display: block; | |
| 2655 | border: solid 1px rgb(70, 70, 70); | |
| 2656 | border-radius: 0.5vw; | |
| 2657 | font-size: 1.5vw; | |
| 2658 | padding: 0.25vw; | |
| 2659 | text-decoration: none; | |
| 2660 | background-color: rgb(220, 220, 220); | |
| 2661 | color: rgb(0, 0, 0); | |
| 2662 | } | |
| 2663 | ||
| 2664 | #impressconsole div#prev a:hover, #impressconsole div#next a:hover { | |
| 2665 | background-color: rgb(245, 245, 245); | |
| 2666 | } | |
| 2667 | ||
| 2668 | #impressconsole div#prev { | |
| 2669 | float: left; | |
| 2670 | } | |
| 2671 | ||
| 2672 | #impressconsole div#next { | |
| 2673 | float: right; | |
| 2674 | } | |
| 2675 | ||
| 2676 | #impressconsole div#status { | |
| 2677 | margin-left: 2em; | |
| 2678 | margin-right: 2em; | |
| 2679 | text-align: center; | |
| 2680 | float: right; | |
| 2681 | } | |
| 2682 | ||
| 2683 | #impressconsole div#clock { | |
| 2684 | margin-left: 2em; | |
| 2685 | margin-right: 2em; | |
| 2686 | text-align: center; | |
| 2687 | float: left; | |
| 2688 | } | |
| 2689 | ||
| 2690 | #impressconsole div#timer { | |
| 2691 | margin-left: 2em; | |
| 2692 | margin-right: 2em; | |
| 2693 | text-align: center; | |
| 2694 | float: left; | |
| 2695 | } | |
| 2696 | ||
| 2697 | #impressconsole span.moving { | |
| 2698 | color: rgb(255, 0, 0); | |
| 2699 | } | |
| 2700 | ||
| 2701 | #impressconsole span.ready { | |
| 2702 | color: rgb(0, 128, 0); | |
| 2703 | } | |
| 2704 | </style>`; | |
| 2705 | }; | |
| 2706 | ||
| 2707 | } )( document, window ); | |
| 2708 | ||
| 2709 | /** | |
| 2710 | * Media Plugin | |
| 2711 | * | |
| 2712 | * This plugin will do the following things: | |
| 2713 | * | |
| 2714 | * - Add a special class when playing (body.impress-media-video-playing | |
| 2715 | * and body.impress-media-video-playing) and pausing media (body.impress-media-video-paused | |
| 2716 | * and body.impress-media-audio-paused) (removing them when ending). | |
| 2717 | * This can be useful for example for darkening the background or fading out other elements | |
| 2718 | * while a video is playing. | |
| 2719 | * Only media at the current step are taken into account. All classes are removed when leaving | |
| 2720 | * a step. | |
| 2721 | * | |
| 2722 | * - Introduce the following new data attributes: | |
| 2723 | * | |
| 2724 | * - data-media-autoplay="true": Autostart media when entering its step. | |
| 2725 | * - data-media-autostop="true": Stop media (= pause and reset to start), when leaving its | |
| 2726 | * step. | |
| 2727 | * - data-media-autopause="true": Pause media but keep current time when leaving its step. | |
| 2728 | * | |
| 2729 | * When these attributes are added to a step they are inherited by all media on this step. | |
| 2730 | * Of course this setting can be overwritten by adding different attributes to inidvidual | |
| 2731 | * media. | |
| 2732 | * | |
| 2733 | * The same rule applies when this attributes is added to the root element. Settings can be | |
| 2734 | * overwritten for individual steps and media. | |
| 2735 | * | |
| 2736 | * Examples: | |
| 2737 | * - data-media-autostart="true" data-media-autostop="true": start media on enter, stop on | |
| 2738 | * leave, restart from beginning when re-entering the step. | |
| 2739 | * | |
| 2740 | * - data-media-autostart="true" data-media-autopause="true": start media on enter, pause on | |
| 2741 | * leave, resume on re-enter | |
| 2742 | * | |
| 2743 | * - data-media-autostart="true" data-media-autostop="true" data-media-autopause="true": start | |
| 2744 | * media on enter, stop on leave (stop overwrites pause). | |
| 2745 | * | |
| 2746 | * - data-media-autostart="true" data-media-autopause="false": let media start automatically | |
| 2747 | * when entering a step and let it play when leaving the step. | |
| 2748 | * | |
| 2749 | * - <div id="impress" data-media-autostart="true"> ... <div class="step" | |
| 2750 | * data-media-autostart="false"> | |
| 2751 | * All media is startet automatically on all steps except the one that has the | |
| 2752 | * data-media-autostart="false" attribute. | |
| 2753 | * | |
| 2754 | * - Pro tip: Use <audio onended="impress().next()"> or <video onended="impress().next()"> to | |
| 2755 | * proceed to the next step automatically, when the end of the media is reached. | |
| 2756 | * | |
| 2757 | * | |
| 2758 | * Copyright 2018 Holger Teichert (@complanar) | |
| 2759 | * Released under the MIT license. | |
| 2760 | */ | |
| 2761 | /* global window, document */ | |
| 2762 | ||
| 2763 | ( function( document, window ) { | |
| 2764 | "use strict"; | |
| 2765 | var root, api, gc, attributeTracker; | |
| 2766 | ||
| 2767 | attributeTracker = []; | |
| 2768 | ||
| 2769 | // Function names | |
| 2770 | var enhanceMediaNodes, | |
| 2771 | enhanceMedia, | |
| 2772 | removeMediaClasses, | |
| 2773 | onStepenterDetectImpressConsole, | |
| 2774 | onStepenter, | |
| 2775 | onStepleave, | |
| 2776 | onPlay, | |
| 2777 | onPause, | |
| 2778 | onEnded, | |
| 2779 | getMediaAttribute, | |
| 2780 | teardown; | |
| 2781 | ||
| 2782 | document.addEventListener( "impress:init", function( event ) { | |
| 2783 | root = event.target; | |
| 2784 | api = event.detail.api; | |
| 2785 | gc = api.lib.gc; | |
| 2786 | ||
| 2787 | enhanceMedia(); | |
| 2788 | ||
| 2789 | gc.pushCallback( teardown ); | |
| 2790 | }, false ); | |
| 2791 | ||
| 2792 | teardown = function() { | |
| 2793 | var el, i; | |
| 2794 | removeMediaClasses(); | |
| 2795 | for ( i = 0; i < attributeTracker.length; i += 1 ) { | |
| 2796 | el = attributeTracker[ i ]; | |
| 2797 | el.node.removeAttribute( el.attr ); | |
| 2798 | } | |
| 2799 | attributeTracker = []; | |
| 2800 | }; | |
| 2801 | ||
| 2802 | getMediaAttribute = function( attributeName, nodes ) { | |
| 2803 | var attrName, attrValue, i, node; | |
| 2804 | attrName = "data-media-" + attributeName; | |
| 2805 | ||
| 2806 | // Look for attributes in all nodes | |
| 2807 | for ( i = 0; i < nodes.length; i += 1 ) { | |
| 2808 | node = nodes[ i ]; | |
| 2809 | ||
| 2810 | // First test, if the attribute exists, because some browsers may return | |
| 2811 | // an empty string for non-existing attributes - specs are not clear at that point | |
| 2812 | if ( node.hasAttribute( attrName ) ) { | |
| 2813 | ||
| 2814 | // Attribute found, return their parsed boolean value, empty strings count as true | |
| 2815 | // to enable empty value booleans (common in html5 but not allowed in well formed | |
| 2816 | // xml). | |
| 2817 | attrValue = node.getAttribute( attrName ); | |
| 2818 | if ( attrValue === "" || attrValue === "true" ) { | |
| 2819 | return true; | |
| 2820 | } else { | |
| 2821 | return false; | |
| 2822 | } | |
| 2823 | } | |
| 2824 | ||
| 2825 | // No attribute found at current node, proceed with next round | |
| 2826 | } | |
| 2827 | ||
| 2828 | // Last resort: no attribute found - return undefined to distiguish from false | |
| 2829 | return undefined; | |
| 2830 | }; | |
| 2831 | ||
| 2832 | onPlay = function( event ) { | |
| 2833 | var type = event.target.nodeName.toLowerCase(); | |
| 2834 | document.body.classList.add( "impress-media-" + type + "-playing" ); | |
| 2835 | document.body.classList.remove( "impress-media-" + type + "-paused" ); | |
| 2836 | }; | |
| 2837 | ||
| 2838 | onPause = function( event ) { | |
| 2839 | var type = event.target.nodeName.toLowerCase(); | |
| 2840 | document.body.classList.add( "impress-media-" + type + "-paused" ); | |
| 2841 | document.body.classList.remove( "impress-media-" + type + "-playing" ); | |
| 2842 | }; | |
| 2843 | ||
| 2844 | onEnded = function( event ) { | |
| 2845 | var type = event.target.nodeName.toLowerCase(); | |
| 2846 | document.body.classList.remove( "impress-media-" + type + "-playing" ); | |
| 2847 | document.body.classList.remove( "impress-media-" + type + "-paused" ); | |
| 2848 | }; | |
| 2849 | ||
| 2850 | removeMediaClasses = function() { | |
| 2851 | var type, types; | |
| 2852 | types = [ "video", "audio" ]; | |
| 2853 | for ( type in types ) { | |
| 2854 | document.body.classList.remove( "impress-media-" + types[ type ] + "-playing" ); | |
| 2855 | document.body.classList.remove( "impress-media-" + types[ type ] + "-paused" ); | |
| 2856 | } | |
| 2857 | }; | |
| 2858 | ||
| 2859 | enhanceMediaNodes = function() { | |
| 2860 | var i, id, media, mediaElement, type; | |
| 2861 | ||
| 2862 | media = root.querySelectorAll( "audio, video" ); | |
| 2863 | for ( i = 0; i < media.length; i += 1 ) { | |
| 2864 | type = media[ i ].nodeName.toLowerCase(); | |
| 2865 | ||
| 2866 | // Set an id to identify each media node - used e.g. for cross references by | |
| 2867 | // the consoleMedia plugin | |
| 2868 | mediaElement = media[ i ]; | |
| 2869 | id = mediaElement.getAttribute( "id" ); | |
| 2870 | if ( id === undefined || id === null ) { | |
| 2871 | mediaElement.setAttribute( "id", "media-" + type + "-" + i ); | |
| 2872 | attributeTracker.push( { "node": mediaElement, "attr": "id" } ); | |
| 2873 | } | |
| 2874 | gc.addEventListener( mediaElement, "play", onPlay ); | |
| 2875 | gc.addEventListener( mediaElement, "playing", onPlay ); | |
| 2876 | gc.addEventListener( mediaElement, "pause", onPause ); | |
| 2877 | gc.addEventListener( mediaElement, "ended", onEnded ); | |
| 2878 | } | |
| 2879 | }; | |
| 2880 | ||
| 2881 | enhanceMedia = function() { | |
| 2882 | var steps, stepElement, i; | |
| 2883 | enhanceMediaNodes(); | |
| 2884 | steps = document.getElementsByClassName( "step" ); | |
| 2885 | for ( i = 0; i < steps.length; i += 1 ) { | |
| 2886 | stepElement = steps[ i ]; | |
| 2887 | ||
| 2888 | gc.addEventListener( stepElement, "impress:stepenter", onStepenter ); | |
| 2889 | gc.addEventListener( stepElement, "impress:stepleave", onStepleave ); | |
| 2890 | } | |
| 2891 | }; | |
| 2892 | ||
| 2893 | onStepenterDetectImpressConsole = function() { | |
| 2894 | return { | |
| 2895 | "preview": ( window.frameElement !== null && window.frameElement.id === "preView" ), | |
| 2896 | "slideView": ( window.frameElement !== null && window.frameElement.id === "slideView" ) | |
| 2897 | }; | |
| 2898 | }; | |
| 2899 | ||
| 2900 | onStepenter = function( event ) { | |
| 2901 | var stepElement, media, mediaElement, i, onConsole, autoplay; | |
| 2902 | if ( ( !event ) || ( !event.target ) ) { | |
| 2903 | return; | |
| 2904 | } | |
| 2905 | ||
| 2906 | stepElement = event.target; | |
| 2907 | removeMediaClasses(); | |
| 2908 | ||
| 2909 | media = stepElement.querySelectorAll( "audio, video" ); | |
| 2910 | for ( i = 0; i < media.length; i += 1 ) { | |
| 2911 | mediaElement = media[ i ]; | |
| 2912 | ||
| 2913 | // Autoplay when (maybe inherited) autoplay setting is true, | |
| 2914 | // but only if not on preview of the next step in impressConsole | |
| 2915 | onConsole = onStepenterDetectImpressConsole(); | |
| 2916 | autoplay = getMediaAttribute( "autoplay", [ mediaElement, stepElement, root ] ); | |
| 2917 | if ( autoplay && !onConsole.preview ) { | |
| 2918 | if ( onConsole.slideView ) { | |
| 2919 | mediaElement.muted = true; | |
| 2920 | } | |
| 2921 | mediaElement.play(); | |
| 2922 | } | |
| 2923 | } | |
| 2924 | }; | |
| 2925 | ||
| 2926 | onStepleave = function( event ) { | |
| 2927 | var stepElement, media, i, mediaElement, autoplay, autopause, autostop; | |
| 2928 | if ( ( !event || !event.target ) ) { | |
| 2929 | return; | |
| 2930 | } | |
| 2931 | ||
| 2932 | stepElement = event.target; | |
| 2933 | media = event.target.querySelectorAll( "audio, video" ); | |
| 2934 | for ( i = 0; i < media.length; i += 1 ) { | |
| 2935 | mediaElement = media[ i ]; | |
| 2936 | ||
| 2937 | autoplay = getMediaAttribute( "autoplay", [ mediaElement, stepElement, root ] ); | |
| 2938 | autopause = getMediaAttribute( "autopause", [ mediaElement, stepElement, root ] ); | |
| 2939 | autostop = getMediaAttribute( "autostop", [ mediaElement, stepElement, root ] ); | |
| 2940 | ||
| 2941 | // If both autostop and autopause are undefined, set it to the value of autoplay | |
| 2942 | if ( autostop === undefined && autopause === undefined ) { | |
| 2943 | autostop = autoplay; | |
| 2944 | } | |
| 2945 | ||
| 2946 | if ( autopause || autostop ) { | |
| 2947 | mediaElement.pause(); | |
| 2948 | if ( autostop ) { | |
| 2949 | mediaElement.currentTime = 0; | |
| 2950 | } | |
| 2951 | } | |
| 2952 | } | |
| 2953 | removeMediaClasses(); | |
| 2954 | }; | |
| 2955 | ||
| 2956 | } )( document, window ); | |
| 2957 | ||
| 2958 | /** | |
| 2959 | * Mobile devices support | |
| 2960 | * | |
| 2961 | * Allow presentation creators to hide all but 3 slides, to save resources, particularly on mobile | |
| 2962 | * devices, using classes body.impress-mobile, .step.prev, .step.active and .step.next. | |
| 2963 | * | |
| 2964 | * Note: This plugin does not take into account possible redirections done with skip, goto etc | |
| 2965 | * plugins. Basically it wouldn't work as intended in such cases, but the active step will at least | |
| 2966 | * be correct. | |
| 2967 | * | |
| 2968 | * Adapted to a plugin from a submission by @Kzeni: | |
| 2969 | * https://github.com/impress/impress.js/issues/333 | |
| 2970 | */ | |
| 2971 | /* global document, navigator */ | |
| 2972 | ( function( document ) { | |
| 2973 | "use strict"; | |
| 2974 | ||
| 2975 | var getNextStep = function( el ) { | |
| 2976 | var steps = document.querySelectorAll( ".step" ); | |
| 2977 | for ( var i = 0; i < steps.length; i++ ) { | |
| 2978 | if ( steps[ i ] === el ) { | |
| 2979 | if ( i + 1 < steps.length ) { | |
| 2980 | return steps[ i + 1 ]; | |
| 2981 | } else { | |
| 2982 | return steps[ 0 ]; | |
| 2983 | } | |
| 2984 | } | |
| 2985 | } | |
| 2986 | }; | |
| 2987 | var getPrevStep = function( el ) { | |
| 2988 | var steps = document.querySelectorAll( ".step" ); | |
| 2989 | for ( var i = steps.length - 1; i >= 0; i-- ) { | |
| 2990 | if ( steps[ i ] === el ) { | |
| 2991 | if ( i - 1 >= 0 ) { | |
| 2992 | return steps[ i - 1 ]; | |
| 2993 | } else { | |
| 2994 | return steps[ steps.length - 1 ]; | |
| 2995 | } | |
| 2996 | } | |
| 2997 | } | |
| 2998 | }; | |
| 2999 | ||
| 3000 | // Detect mobile browsers & add CSS class as appropriate. | |
| 3001 | document.addEventListener( "impress:init", function( event ) { | |
| 3002 | var body = document.body; | |
| 3003 | if ( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test( | |
| 3004 | navigator.userAgent | |
| 3005 | ) ) { | |
| 3006 | body.classList.add( "impress-mobile" ); | |
| 3007 | } | |
| 3008 | ||
| 3009 | // Unset all this on teardown | |
| 3010 | var api = event.detail.api; | |
| 3011 | api.lib.gc.pushCallback( function() { | |
| 3012 | document.body.classList.remove( "impress-mobile" ); | |
| 3013 | var prev = document.getElementsByClassName( "prev" )[ 0 ]; | |
| 3014 | var next = document.getElementsByClassName( "next" )[ 0 ]; | |
| 3015 | if ( typeof prev !== "undefined" ) { | |
| 3016 | prev.classList.remove( "prev" ); | |
| 3017 | } | |
| 3018 | if ( typeof next !== "undefined" ) { | |
| 3019 | next.classList.remove( "next" ); | |
| 3020 | } | |
| 3021 | } ); | |
| 3022 | } ); | |
| 3023 | ||
| 3024 | // Add prev and next classes to the siblings of the newly entered active step element | |
| 3025 | // Remove prev and next classes from their current step elements | |
| 3026 | // Note: As an exception we break namespacing rules, as these are useful general purpose | |
| 3027 | // classes. (Naming rules would require us to use css classes mobile-next and mobile-prev, | |
| 3028 | // based on plugin name.) | |
| 3029 | document.addEventListener( "impress:stepenter", function( event ) { | |
| 3030 | var oldprev = document.getElementsByClassName( "prev" )[ 0 ]; | |
| 3031 | var oldnext = document.getElementsByClassName( "next" )[ 0 ]; | |
| 3032 | ||
| 3033 | var prev = getPrevStep( event.target ); | |
| 3034 | prev.classList.add( "prev" ); | |
| 3035 | var next = getNextStep( event.target ); | |
| 3036 | next.classList.add( "next" ); | |
| 3037 | ||
| 3038 | if ( typeof oldprev !== "undefined" ) { | |
| 3039 | oldprev.classList.remove( "prev" ); | |
| 3040 | } | |
| 3041 | if ( typeof oldnext !== "undefined" ) { | |
| 3042 | oldnext.classList.remove( "next" ); | |
| 3043 | } | |
| 3044 | } ); | |
| 3045 | } )( document ); | |
| 3046 | ||
| 3047 | ||
| 3048 | /** | |
| 3049 | * Mouse timeout plugin | |
| 3050 | * | |
| 3051 | * After 3 seconds of mouse inactivity, add the css class | |
| 3052 | * `body.impress-mouse-timeout`. On `mousemove`, `click` or `touch`, remove the | |
| 3053 | * class. | |
| 3054 | * | |
| 3055 | * The use case for this plugin is to use CSS to hide elements from the screen | |
| 3056 | * and only make them visible when the mouse is moved. Examples where this | |
| 3057 | * might be used are: the toolbar from the toolbar plugin, and the mouse cursor | |
| 3058 | * itself. | |
| 3059 | * | |
| 3060 | * Example CSS: | |
| 3061 | * | |
| 3062 | * body.impress-mouse-timeout { | |
| 3063 | * cursor: none; | |
| 3064 | * } | |
| 3065 | * body.impress-mouse-timeout div#impress-toolbar { | |
| 3066 | * display: none; | |
| 3067 | * } | |
| 3068 | * | |
| 3069 | * | |
| 3070 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 3071 | * Released under the MIT license. | |
| 3072 | */ | |
| 3073 | /* global window, document */ | |
| 3074 | ( function( document, window ) { | |
| 3075 | "use strict"; | |
| 3076 | var timeout = 3; | |
| 3077 | var timeoutHandle; | |
| 3078 | ||
| 3079 | var hide = function() { | |
| 3080 | ||
| 3081 | // Mouse is now inactive | |
| 3082 | document.body.classList.add( "impress-mouse-timeout" ); | |
| 3083 | }; | |
| 3084 | ||
| 3085 | var show = function() { | |
| 3086 | if ( timeoutHandle ) { | |
| 3087 | window.clearTimeout( timeoutHandle ); | |
| 3088 | } | |
| 3089 | ||
| 3090 | // Mouse is now active | |
| 3091 | document.body.classList.remove( "impress-mouse-timeout" ); | |
| 3092 | ||
| 3093 | // Then set new timeout after which it is considered inactive again | |
| 3094 | timeoutHandle = window.setTimeout( hide, timeout * 1000 ); | |
| 3095 | }; | |
| 3096 | ||
| 3097 | document.addEventListener( "impress:init", function( event ) { | |
| 3098 | var api = event.detail.api; | |
| 3099 | var gc = api.lib.gc; | |
| 3100 | gc.addEventListener( document, "mousemove", show ); | |
| 3101 | gc.addEventListener( document, "click", show ); | |
| 3102 | gc.addEventListener( document, "touch", show ); | |
| 3103 | ||
| 3104 | // Set first timeout | |
| 3105 | show(); | |
| 3106 | ||
| 3107 | // Unset all this on teardown | |
| 3108 | gc.pushCallback( function() { | |
| 3109 | window.clearTimeout( timeoutHandle ); | |
| 3110 | document.body.classList.remove( "impress-mouse-timeout" ); | |
| 3111 | } ); | |
| 3112 | }, false ); | |
| 3113 | ||
| 3114 | } )( document, window ); | |
| 3115 | ||
| 3116 | /** | |
| 3117 | * Navigation events plugin | |
| 3118 | * | |
| 3119 | * As you can see this part is separate from the impress.js core code. | |
| 3120 | * It's because these navigation actions only need what impress.js provides with | |
| 3121 | * its simple API. | |
| 3122 | * | |
| 3123 | * This plugin is what we call an _init plugin_. It's a simple kind of | |
| 3124 | * impress.js plugin. When loaded, it starts listening to the `impress:init` | |
| 3125 | * event. That event listener initializes the plugin functionality - in this | |
| 3126 | * case we listen to some keypress and mouse events. The only dependencies on | |
| 3127 | * core impress.js functionality is the `impress:init` method, as well as using | |
| 3128 | * the public api `next(), prev(),` etc when keys are pressed. | |
| 3129 | * | |
| 3130 | * Copyright 2011-2012 Bartek Szopka (@bartaz) | |
| 3131 | * Released under the MIT license. | |
| 3132 | * ------------------------------------------------ | |
| 3133 | * author: Bartek Szopka | |
| 3134 | * version: 0.5.3 | |
| 3135 | * url: http://bartaz.github.com/impress.js/ | |
| 3136 | * source: http://github.com/bartaz/impress.js/ | |
| 3137 | * | |
| 3138 | */ | |
| 3139 | /* global document */ | |
| 3140 | ( function( document ) { | |
| 3141 | "use strict"; | |
| 3142 | ||
| 3143 | // Wait for impress.js to be initialized | |
| 3144 | document.addEventListener( "impress:init", function( event ) { | |
| 3145 | ||
| 3146 | // Getting API from event data. | |
| 3147 | // So you don't event need to know what is the id of the root element | |
| 3148 | // or anything. `impress:init` event data gives you everything you | |
| 3149 | // need to control the presentation that was just initialized. | |
| 3150 | var api = event.detail.api; | |
| 3151 | var gc = api.lib.gc; | |
| 3152 | var util = api.lib.util; | |
| 3153 | ||
| 3154 | // Supported keys are: | |
| 3155 | // [space] - quite common in presentation software to move forward | |
| 3156 | // [up] [right] / [down] [left] - again common and natural addition, | |
| 3157 | // [pgdown] / [pgup] - often triggered by remote controllers, | |
| 3158 | // [tab] - this one is quite controversial, but the reason it ended up on | |
| 3159 | // this list is quite an interesting story... Remember that strange part | |
| 3160 | // in the impress.js code where window is scrolled to 0,0 on every presentation | |
| 3161 | // step, because sometimes browser scrolls viewport because of the focused element? | |
| 3162 | // Well, the [tab] key by default navigates around focusable elements, so clicking | |
| 3163 | // it very often caused scrolling to focused element and breaking impress.js | |
| 3164 | // positioning. I didn't want to just prevent this default action, so I used [tab] | |
| 3165 | // as another way to moving to next step... And yes, I know that for the sake of | |
| 3166 | // consistency I should add [shift+tab] as opposite action... | |
| 3167 | var isNavigationEvent = function( event ) { | |
| 3168 | ||
| 3169 | // Don't trigger navigation for example when user returns to browser window with ALT+TAB | |
| 3170 | if ( event.altKey || event.ctrlKey || event.metaKey ) { | |
| 3171 | return false; | |
| 3172 | } | |
| 3173 | ||
| 3174 | // In the case of TAB, we force step navigation always, overriding the browser | |
| 3175 | // navigation between input elements, buttons and links. | |
| 3176 | if ( event.keyCode === 9 ) { | |
| 3177 | return true; | |
| 3178 | } | |
| 3179 | ||
| 3180 | // With the sole exception of TAB, we also ignore keys pressed if shift is down. | |
| 3181 | if ( event.shiftKey ) { | |
| 3182 | return false; | |
| 3183 | } | |
| 3184 | ||
| 3185 | if ( ( event.keyCode >= 32 && event.keyCode <= 34 ) || | |
| 3186 | ( event.keyCode >= 37 && event.keyCode <= 40 ) ) { | |
| 3187 | return true; | |
| 3188 | } | |
| 3189 | }; | |
| 3190 | ||
| 3191 | // KEYBOARD NAVIGATION HANDLERS | |
| 3192 | ||
| 3193 | // Prevent default keydown action when one of supported key is pressed. | |
| 3194 | gc.addEventListener( document, "keydown", function( event ) { | |
| 3195 | if ( isNavigationEvent( event ) ) { | |
| 3196 | event.preventDefault(); | |
| 3197 | } | |
| 3198 | }, false ); | |
| 3199 | ||
| 3200 | // Trigger impress action (next or prev) on keyup. | |
| 3201 | gc.addEventListener( document, "keyup", function( event ) { | |
| 3202 | if ( isNavigationEvent( event ) ) { | |
| 3203 | if ( event.shiftKey ) { | |
| 3204 | switch ( event.keyCode ) { | |
| 3205 | case 9: // Shift+tab | |
| 3206 | case 32: // Shift+space | |
| 3207 | api.prev(); | |
| 3208 | break; | |
| 3209 | } | |
| 3210 | } else { | |
| 3211 | switch ( event.keyCode ) { | |
| 3212 | case 33: // Pg up | |
| 3213 | case 37: // Left | |
| 3214 | case 38: // Up | |
| 3215 | api.prev( event ); | |
| 3216 | break; | |
| 3217 | case 9: // Tab | |
| 3218 | case 32: // Space | |
| 3219 | case 34: // Pg down | |
| 3220 | case 39: // Right | |
| 3221 | case 40: // Down | |
| 3222 | api.next( event ); | |
| 3223 | break; | |
| 3224 | } | |
| 3225 | } | |
| 3226 | event.preventDefault(); | |
| 3227 | } | |
| 3228 | }, false ); | |
| 3229 | ||
| 3230 | // Delegated handler for clicking on the links to presentation steps | |
| 3231 | gc.addEventListener( document, "click", function( event ) { | |
| 3232 | ||
| 3233 | // Event delegation with "bubbling" | |
| 3234 | // check if event target (or any of its parents is a link) | |
| 3235 | var target = event.target; | |
| 3236 | try { | |
| 3237 | while ( ( target.tagName !== "A" ) && | |
| 3238 | ( target !== document.documentElement ) ) { | |
| 3239 | target = target.parentNode; | |
| 3240 | } | |
| 3241 | ||
| 3242 | if ( target.tagName === "A" ) { | |
| 3243 | var href = target.getAttribute( "href" ); | |
| 3244 | ||
| 3245 | // If it's a link to presentation step, target this step | |
| 3246 | if ( href && href[ 0 ] === "#" ) { | |
| 3247 | target = document.getElementById( href.slice( 1 ) ); | |
| 3248 | } | |
| 3249 | } | |
| 3250 | ||
| 3251 | if ( api.goto( target ) ) { | |
| 3252 | event.stopImmediatePropagation(); | |
| 3253 | event.preventDefault(); | |
| 3254 | } | |
| 3255 | } | |
| 3256 | catch ( err ) { | |
| 3257 | ||
| 3258 | // For example, when clicking on the button to launch speaker console, the button | |
| 3259 | // is immediately deleted from the DOM. In this case target is a DOM element when | |
| 3260 | // we get it, but turns out to be null if you try to actually do anything with it. | |
| 3261 | if ( err instanceof TypeError && | |
| 3262 | err.message === "target is null" ) { | |
| 3263 | return; | |
| 3264 | } | |
| 3265 | throw err; | |
| 3266 | } | |
| 3267 | }, false ); | |
| 3268 | ||
| 3269 | // Delegated handler for clicking on step elements | |
| 3270 | gc.addEventListener( document, "click", function( event ) { | |
| 3271 | var target = event.target; | |
| 3272 | try { | |
| 3273 | ||
| 3274 | // Find closest step element that is not active | |
| 3275 | while ( !( target.classList.contains( "step" ) && | |
| 3276 | !target.classList.contains( "active" ) ) && | |
| 3277 | ( target !== document.documentElement ) ) { | |
| 3278 | target = target.parentNode; | |
| 3279 | } | |
| 3280 | ||
| 3281 | if ( api.goto( target ) ) { | |
| 3282 | event.preventDefault(); | |
| 3283 | } | |
| 3284 | } | |
| 3285 | catch ( err ) { | |
| 3286 | ||
| 3287 | // For example, when clicking on the button to launch speaker console, the button | |
| 3288 | // is immediately deleted from the DOM. In this case target is a DOM element when | |
| 3289 | // we get it, but turns out to be null if you try to actually do anything with it. | |
| 3290 | if ( err instanceof TypeError && | |
| 3291 | err.message === "target is null" ) { | |
| 3292 | return; | |
| 3293 | } | |
| 3294 | throw err; | |
| 3295 | } | |
| 3296 | }, false ); | |
| 3297 | ||
| 3298 | // Add a line to the help popup | |
| 3299 | util.triggerEvent( document, "impress:help:add", { command: "Left & Right", | |
| 3300 | text: "Previous & Next step", | |
| 3301 | row: 1 } ); | |
| 3302 | ||
| 3303 | }, false ); | |
| 3304 | ||
| 3305 | } )( document ); | |
| 3306 | ||
| 3307 | ||
| 3308 | /** | |
| 3309 | * Navigation UI plugin | |
| 3310 | * | |
| 3311 | * This plugin provides UI elements "back", "forward" and a list to select | |
| 3312 | * a specific slide number. | |
| 3313 | * | |
| 3314 | * The navigation controls are added to the toolbar plugin via DOM events. User must enable the | |
| 3315 | * toolbar in a presentation to have them visible. | |
| 3316 | * | |
| 3317 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 3318 | * Released under the MIT license. | |
| 3319 | */ | |
| 3320 | ||
| 3321 | // This file contains so much HTML, that we will just respectfully disagree about js | |
| 3322 | /* jshint quotmark:single */ | |
| 3323 | /* global document */ | |
| 3324 | ||
| 3325 | ( function( document ) { | |
| 3326 | 'use strict'; | |
| 3327 | var toolbar; | |
| 3328 | var api; | |
| 3329 | var root; | |
| 3330 | var steps; | |
| 3331 | var hideSteps = []; | |
| 3332 | var prev; | |
| 3333 | var select; | |
| 3334 | var next; | |
| 3335 | ||
| 3336 | var triggerEvent = function( el, eventName, detail ) { | |
| 3337 | var event = document.createEvent( 'CustomEvent' ); | |
| 3338 | event.initCustomEvent( eventName, true, true, detail ); | |
| 3339 | el.dispatchEvent( event ); | |
| 3340 | }; | |
| 3341 | ||
| 3342 | var makeDomElement = function( html ) { | |
| 3343 | var tempDiv = document.createElement( 'div' ); | |
| 3344 | tempDiv.innerHTML = html; | |
| 3345 | return tempDiv.firstChild; | |
| 3346 | }; | |
| 3347 | ||
| 3348 | var selectOptionsHtml = function() { | |
| 3349 | var options = ''; | |
| 3350 | for ( var i = 0; i < steps.length; i++ ) { | |
| 3351 | ||
| 3352 | // Omit steps that are listed as hidden from select widget | |
| 3353 | if ( hideSteps.indexOf( steps[ i ] ) < 0 ) { | |
| 3354 | options = options + '<option value="' + steps[ i ].id + '">' + // jshint ignore:line | |
| 3355 | steps[ i ].id + '</option>' + '\n'; // jshint ignore:line | |
| 3356 | } | |
| 3357 | } | |
| 3358 | return options; | |
| 3359 | }; | |
| 3360 | ||
| 3361 | var addNavigationControls = function( event ) { | |
| 3362 | api = event.detail.api; | |
| 3363 | var gc = api.lib.gc; | |
| 3364 | root = event.target; | |
| 3365 | steps = root.querySelectorAll( '.step' ); | |
| 3366 | ||
| 3367 | var prevHtml = '<button id="impress-navigation-ui-prev" title="Previous" ' + | |
| 3368 | 'class="impress-navigation-ui"><</button>'; | |
| 3369 | var selectHtml = '<select id="impress-navigation-ui-select" title="Go to" ' + | |
| 3370 | 'class="impress-navigation-ui">' + '\n' + | |
| 3371 | selectOptionsHtml() + | |
| 3372 | '</select>'; | |
| 3373 | var nextHtml = '<button id="impress-navigation-ui-next" title="Next" ' + | |
| 3374 | 'class="impress-navigation-ui">></button>'; | |
| 3375 | ||
| 3376 | prev = makeDomElement( prevHtml ); | |
| 3377 | prev.addEventListener( 'click', | |
| 3378 | function() { | |
| 3379 | api.prev(); | |
| 3380 | } ); | |
| 3381 | select = makeDomElement( selectHtml ); | |
| 3382 | select.addEventListener( 'change', | |
| 3383 | function( event ) { | |
| 3384 | api.goto( event.target.value ); | |
| 3385 | } ); | |
| 3386 | gc.addEventListener( root, 'impress:steprefresh', function( event ) { | |
| 3387 | ||
| 3388 | // As impress.js core now allows to dynamically edit the steps, including adding, | |
| 3389 | // removing, and reordering steps, we need to requery and redraw the select list on | |
| 3390 | // every stepenter event. | |
| 3391 | steps = root.querySelectorAll( '.step' ); | |
| 3392 | select.innerHTML = '\n' + selectOptionsHtml(); | |
| 3393 | ||
| 3394 | // Make sure the list always shows the step we're actually on, even if it wasn't | |
| 3395 | // selected from the list | |
| 3396 | select.value = event.target.id; | |
| 3397 | } ); | |
| 3398 | next = makeDomElement( nextHtml ); | |
| 3399 | next.addEventListener( 'click', | |
| 3400 | function() { | |
| 3401 | api.next(); | |
| 3402 | } ); | |
| 3403 | ||
| 3404 | triggerEvent( toolbar, 'impress:toolbar:appendChild', { group: 0, element: prev } ); | |
| 3405 | triggerEvent( toolbar, 'impress:toolbar:appendChild', { group: 0, element: select } ); | |
| 3406 | triggerEvent( toolbar, 'impress:toolbar:appendChild', { group: 0, element: next } ); | |
| 3407 | ||
| 3408 | }; | |
| 3409 | ||
| 3410 | // API for not listing given step in the select widget. | |
| 3411 | // For example, if you set class="skip" on some element, you may not want it to show up in the | |
| 3412 | // list either. Otoh we cannot assume that, or anything else, so steps that user wants omitted | |
| 3413 | // must be specifically added with this API call. | |
| 3414 | document.addEventListener( 'impress:navigation-ui:hideStep', function( event ) { | |
| 3415 | hideSteps.push( event.target ); | |
| 3416 | if ( select ) { | |
| 3417 | select.innerHTML = selectOptionsHtml(); | |
| 3418 | } | |
| 3419 | }, false ); | |
| 3420 | ||
| 3421 | // Wait for impress.js to be initialized | |
| 3422 | document.addEventListener( 'impress:init', function( event ) { | |
| 3423 | toolbar = document.querySelector( '#impress-toolbar' ); | |
| 3424 | if ( toolbar ) { | |
| 3425 | addNavigationControls( event ); | |
| 3426 | } | |
| 3427 | }, false ); | |
| 3428 | ||
| 3429 | } )( document ); | |
| 3430 | ||
| 3431 | ||
| 3432 | /* global document */ | |
| 3433 | ( function( document ) { | |
| 3434 | "use strict"; | |
| 3435 | var root; | |
| 3436 | var stepids = []; | |
| 3437 | ||
| 3438 | // Get stepids from the steps under impress root | |
| 3439 | var getSteps = function() { | |
| 3440 | stepids = []; | |
| 3441 | var steps = root.querySelectorAll( ".step" ); | |
| 3442 | for ( var i = 0; i < steps.length; i++ ) | |
| 3443 | { | |
| 3444 | stepids[ i + 1 ] = steps[ i ].id; | |
| 3445 | } | |
| 3446 | }; | |
| 3447 | ||
| 3448 | // Wait for impress.js to be initialized | |
| 3449 | document.addEventListener( "impress:init", function( event ) { | |
| 3450 | root = event.target; | |
| 3451 | getSteps(); | |
| 3452 | var gc = event.detail.api.lib.gc; | |
| 3453 | gc.pushCallback( function() { | |
| 3454 | stepids = []; | |
| 3455 | if ( progressbar ) { | |
| 3456 | progressbar.style.width = ""; | |
| 3457 | } | |
| 3458 | if ( progress ) { | |
| 3459 | progress.innerHTML = ""; | |
| 3460 | } | |
| 3461 | } ); | |
| 3462 | } ); | |
| 3463 | ||
| 3464 | var progressbar = document.querySelector( "div.impress-progressbar div" ); | |
| 3465 | var progress = document.querySelector( "div.impress-progress" ); | |
| 3466 | ||
| 3467 | if ( null !== progressbar || null !== progress ) { | |
| 3468 | document.addEventListener( "impress:stepleave", function( event ) { | |
| 3469 | updateProgressbar( event.detail.next.id ); | |
| 3470 | } ); | |
| 3471 | ||
| 3472 | document.addEventListener( "impress:steprefresh", function( event ) { | |
| 3473 | getSteps(); | |
| 3474 | updateProgressbar( event.target.id ); | |
| 3475 | } ); | |
| 3476 | ||
| 3477 | } | |
| 3478 | ||
| 3479 | function updateProgressbar( slideId ) { | |
| 3480 | var slideNumber = stepids.indexOf( slideId ); | |
| 3481 | if ( null !== progressbar ) { | |
| 3482 | var width = 100 / ( stepids.length - 1 ) * ( slideNumber ); | |
| 3483 | progressbar.style.width = width.toFixed( 2 ) + "%"; | |
| 3484 | } | |
| 3485 | if ( null !== progress ) { | |
| 3486 | progress.innerHTML = slideNumber + "/" + ( stepids.length - 1 ); | |
| 3487 | } | |
| 3488 | } | |
| 3489 | } )( document ); | |
| 3490 | ||
| 3491 | /** | |
| 3492 | * Relative Positioning Plugin | |
| 3493 | * | |
| 3494 | * This plugin provides support for defining the coordinates of a step relative | |
| 3495 | * to the previous step. This is often more convenient when creating presentations, | |
| 3496 | * since as you add, remove or move steps, you may not need to edit the positions | |
| 3497 | * as much as is the case with the absolute coordinates supported by impress.js | |
| 3498 | * core. | |
| 3499 | * | |
| 3500 | * Example: | |
| 3501 | * | |
| 3502 | * <!-- Position step 1000 px to the right and 500 px up from the previous step. --> | |
| 3503 | * <div class="step" data-rel-x="1000" data-rel-y="500"> | |
| 3504 | * | |
| 3505 | * Following html attributes are supported for step elements: | |
| 3506 | * | |
| 3507 | * data-rel-x | |
| 3508 | * data-rel-y | |
| 3509 | * data-rel-z | |
| 3510 | * | |
| 3511 | * These values are also inherited from the previous step. This makes it easy to | |
| 3512 | * create a boring presentation where each slide shifts for example 1000px down | |
| 3513 | * from the previous. | |
| 3514 | * | |
| 3515 | * In addition to plain numbers, which are pixel values, it is also possible to | |
| 3516 | * define relative positions as a multiple of screen height and width, using | |
| 3517 | * a unit of "h" and "w", respectively, appended to the number. | |
| 3518 | * | |
| 3519 | * Example: | |
| 3520 | * | |
| 3521 | * <div class="step" data-rel-x="1.5w" data-rel-y="1.5h"> | |
| 3522 | * | |
| 3523 | * This plugin is a *pre-init plugin*. It is called synchronously from impress.js | |
| 3524 | * core at the beginning of `impress().init()`. This allows it to process its own | |
| 3525 | * data attributes first, and possibly alter the data-x, data-y and data-z attributes | |
| 3526 | * that will then be processed by `impress().init()`. | |
| 3527 | * | |
| 3528 | * (Another name for this kind of plugin might be called a *filter plugin*, but | |
| 3529 | * *pre-init plugin* is more generic, as a plugin might do whatever it wants in | |
| 3530 | * the pre-init stage.) | |
| 3531 | * | |
| 3532 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 3533 | * Released under the MIT license. | |
| 3534 | */ | |
| 3535 | ||
| 3536 | /* global document, window */ | |
| 3537 | ||
| 3538 | ( function( document, window ) { | |
| 3539 | "use strict"; | |
| 3540 | ||
| 3541 | var startingState = {}; | |
| 3542 | ||
| 3543 | /** | |
| 3544 | * Copied from core impress.js. We currently lack a library mechanism to | |
| 3545 | * to share utility functions like this. | |
| 3546 | */ | |
| 3547 | var toNumber = function( numeric, fallback ) { | |
| 3548 | return isNaN( numeric ) ? ( fallback || 0 ) : Number( numeric ); | |
| 3549 | }; | |
| 3550 | ||
| 3551 | /** | |
| 3552 | * Extends toNumber() to correctly compute also relative-to-screen-size values 5w and 5h. | |
| 3553 | * | |
| 3554 | * Returns the computed value in pixels with w/h postfix removed. | |
| 3555 | */ | |
| 3556 | var toNumberAdvanced = function( numeric, fallback ) { | |
| 3557 | if ( typeof numeric !== "string" ) { | |
| 3558 | return toNumber( numeric, fallback ); | |
| 3559 | } | |
| 3560 | var ratio = numeric.match( /^([+-]*[\d\.]+)([wh])$/ ); | |
| 3561 | if ( ratio == null ) { | |
| 3562 | return toNumber( numeric, fallback ); | |
| 3563 | } else { | |
| 3564 | var value = parseFloat( ratio[ 1 ] ); | |
| 3565 | var multiplier = ratio[ 2 ] === "w" ? window.innerWidth : window.innerHeight; | |
| 3566 | return value * multiplier; | |
| 3567 | } | |
| 3568 | }; | |
| 3569 | ||
| 3570 | var computeRelativePositions = function( el, prev ) { | |
| 3571 | var data = el.dataset; | |
| 3572 | ||
| 3573 | if ( !prev ) { | |
| 3574 | ||
| 3575 | // For the first step, inherit these defaults | |
| 3576 | prev = { x:0, y:0, z:0, relative: { x:0, y:0, z:0 } }; | |
| 3577 | } | |
| 3578 | ||
| 3579 | if ( data.relTo ) { | |
| 3580 | ||
| 3581 | var ref = document.getElementById( data.relTo ); | |
| 3582 | if ( ref ) { | |
| 3583 | ||
| 3584 | // Test, if it is a previous step that already has some assigned position data | |
| 3585 | if ( el.compareDocumentPosition( ref ) & Node.DOCUMENT_POSITION_PRECEDING ) { | |
| 3586 | prev.x = toNumber( ref.getAttribute( "data-x" ) ); | |
| 3587 | prev.y = toNumber( ref.getAttribute( "data-y" ) ); | |
| 3588 | prev.z = toNumber( ref.getAttribute( "data-z" ) ); | |
| 3589 | prev.relative = {}; | |
| 3590 | } else { | |
| 3591 | window.console.error( | |
| 3592 | "impress.js rel plugin: Step \"" + data.relTo + "\" is not defined " + | |
| 3593 | "*before* the current step. Referencing is limited to previously defined " + | |
| 3594 | "steps. Please check your markup. Ignoring data-rel-to attribute of " + | |
| 3595 | "this step. Have a look at the documentation for how to create relative " + | |
| 3596 | "positioning to later shown steps with the help of the goto plugin." | |
| 3597 | ); | |
| 3598 | } | |
| 3599 | } else { | |
| 3600 | ||
| 3601 | // Step not found | |
| 3602 | window.console.warn( | |
| 3603 | "impress.js rel plugin: \"" + data.relTo + "\" is not a valid step in this " + | |
| 3604 | "impress.js presentation. Please check your markup. Ignoring data-rel-to " + | |
| 3605 | "attribute of this step." | |
| 3606 | ); | |
| 3607 | } | |
| 3608 | } | |
| 3609 | ||
| 3610 | var step = { | |
| 3611 | x: toNumber( data.x, prev.x ), | |
| 3612 | y: toNumber( data.y, prev.y ), | |
| 3613 | z: toNumber( data.z, prev.z ), | |
| 3614 | relative: { | |
| 3615 | x: toNumberAdvanced( data.relX, prev.relative.x ), | |
| 3616 | y: toNumberAdvanced( data.relY, prev.relative.y ), | |
| 3617 | z: toNumberAdvanced( data.relZ, prev.relative.z ) | |
| 3618 | } | |
| 3619 | }; | |
| 3620 | ||
| 3621 | // Relative position is ignored/zero if absolute is given. | |
| 3622 | // Note that this also has the effect of resetting any inherited relative values. | |
| 3623 | if ( data.x !== undefined ) { | |
| 3624 | step.relative.x = 0; | |
| 3625 | } | |
| 3626 | if ( data.y !== undefined ) { | |
| 3627 | step.relative.y = 0; | |
| 3628 | } | |
| 3629 | if ( data.z !== undefined ) { | |
| 3630 | step.relative.z = 0; | |
| 3631 | } | |
| 3632 | ||
| 3633 | // Apply relative position to absolute position, if non-zero | |
| 3634 | // Note that at this point, the relative values contain a number value of pixels. | |
| 3635 | step.x = step.x + step.relative.x; | |
| 3636 | step.y = step.y + step.relative.y; | |
| 3637 | step.z = step.z + step.relative.z; | |
| 3638 | ||
| 3639 | return step; | |
| 3640 | }; | |
| 3641 | ||
| 3642 | var rel = function( root ) { | |
| 3643 | var steps = root.querySelectorAll( ".step" ); | |
| 3644 | var prev; | |
| 3645 | startingState[ root.id ] = []; | |
| 3646 | for ( var i = 0; i < steps.length; i++ ) { | |
| 3647 | var el = steps[ i ]; | |
| 3648 | startingState[ root.id ].push( { | |
| 3649 | el: el, | |
| 3650 | x: el.getAttribute( "data-x" ), | |
| 3651 | y: el.getAttribute( "data-y" ), | |
| 3652 | z: el.getAttribute( "data-z" ) | |
| 3653 | } ); | |
| 3654 | var step = computeRelativePositions( el, prev ); | |
| 3655 | ||
| 3656 | // Apply relative position (if non-zero) | |
| 3657 | el.setAttribute( "data-x", step.x ); | |
| 3658 | el.setAttribute( "data-y", step.y ); | |
| 3659 | el.setAttribute( "data-z", step.z ); | |
| 3660 | prev = step; | |
| 3661 | } | |
| 3662 | }; | |
| 3663 | ||
| 3664 | // Register the plugin to be called in pre-init phase | |
| 3665 | window.impress.addPreInitPlugin( rel ); | |
| 3666 | ||
| 3667 | // Register teardown callback to reset the data.x, .y, .z values. | |
| 3668 | document.addEventListener( "impress:init", function( event ) { | |
| 3669 | var root = event.target; | |
| 3670 | event.detail.api.lib.gc.pushCallback( function() { | |
| 3671 | var steps = startingState[ root.id ]; | |
| 3672 | var step; | |
| 3673 | while ( step = steps.pop() ) { | |
| 3674 | if ( step.x === null ) { | |
| 3675 | step.el.removeAttribute( "data-x" ); | |
| 3676 | } else { | |
| 3677 | step.el.setAttribute( "data-x", step.x ); | |
| 3678 | } | |
| 3679 | if ( step.y === null ) { | |
| 3680 | step.el.removeAttribute( "data-y" ); | |
| 3681 | } else { | |
| 3682 | step.el.setAttribute( "data-y", step.y ); | |
| 3683 | } | |
| 3684 | if ( step.z === null ) { | |
| 3685 | step.el.removeAttribute( "data-z" ); | |
| 3686 | } else { | |
| 3687 | step.el.setAttribute( "data-z", step.z ); | |
| 3688 | } | |
| 3689 | } | |
| 3690 | delete startingState[ root.id ]; | |
| 3691 | } ); | |
| 3692 | }, false ); | |
| 3693 | } )( document, window ); | |
| 3694 | ||
| 3695 | ||
| 3696 | /** | |
| 3697 | * Resize plugin | |
| 3698 | * | |
| 3699 | * Rescale the presentation after a window resize. | |
| 3700 | * | |
| 3701 | * Copyright 2011-2012 Bartek Szopka (@bartaz) | |
| 3702 | * Released under the MIT license. | |
| 3703 | * ------------------------------------------------ | |
| 3704 | * author: Bartek Szopka | |
| 3705 | * version: 0.5.3 | |
| 3706 | * url: http://bartaz.github.com/impress.js/ | |
| 3707 | * source: http://github.com/bartaz/impress.js/ | |
| 3708 | * | |
| 3709 | */ | |
| 3710 | ||
| 3711 | /* global document, window */ | |
| 3712 | ||
| 3713 | ( function( document, window ) { | |
| 3714 | "use strict"; | |
| 3715 | ||
| 3716 | // Wait for impress.js to be initialized | |
| 3717 | document.addEventListener( "impress:init", function( event ) { | |
| 3718 | var api = event.detail.api; | |
| 3719 | ||
| 3720 | // Rescale presentation when window is resized | |
| 3721 | api.lib.gc.addEventListener( window, "resize", api.lib.util.throttle( function() { | |
| 3722 | ||
| 3723 | // Force going to active step again, to trigger rescaling | |
| 3724 | api.goto( document.querySelector( ".step.active" ), 500 ); | |
| 3725 | }, 250 ), false ); | |
| 3726 | }, false ); | |
| 3727 | ||
| 3728 | } )( document, window ); | |
| 3729 | ||
| 3730 | ||
| 3731 | /** | |
| 3732 | * Skip Plugin | |
| 3733 | * | |
| 3734 | * Example: | |
| 3735 | * | |
| 3736 | * <!-- This slide is disabled in presentations, when moving with next() | |
| 3737 | * and prev() commands, but you can still move directly to it, for | |
| 3738 | * example with a url (anything using goto()). --> | |
| 3739 | * <div class="step skip"> | |
| 3740 | * | |
| 3741 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 3742 | * Released under the MIT license. | |
| 3743 | */ | |
| 3744 | ||
| 3745 | /* global document, window */ | |
| 3746 | ||
| 3747 | ( function( document, window ) { | |
| 3748 | "use strict"; | |
| 3749 | var util; | |
| 3750 | ||
| 3751 | document.addEventListener( "impress:init", function( event ) { | |
| 3752 | util = event.detail.api.lib.util; | |
| 3753 | }, false ); | |
| 3754 | ||
| 3755 | var getNextStep = function( el ) { | |
| 3756 | var steps = document.querySelectorAll( ".step" ); | |
| 3757 | for ( var i = 0; i < steps.length; i++ ) { | |
| 3758 | if ( steps[ i ] === el ) { | |
| 3759 | if ( i + 1 < steps.length ) { | |
| 3760 | return steps[ i + 1 ]; | |
| 3761 | } else { | |
| 3762 | return steps[ 0 ]; | |
| 3763 | } | |
| 3764 | } | |
| 3765 | } | |
| 3766 | }; | |
| 3767 | var getPrevStep = function( el ) { | |
| 3768 | var steps = document.querySelectorAll( ".step" ); | |
| 3769 | for ( var i = steps.length - 1; i >= 0; i-- ) { | |
| 3770 | if ( steps[ i ] === el ) { | |
| 3771 | if ( i - 1 >= 0 ) { | |
| 3772 | return steps[ i - 1 ]; | |
| 3773 | } else { | |
| 3774 | return steps[ steps.length - 1 ]; | |
| 3775 | } | |
| 3776 | } | |
| 3777 | } | |
| 3778 | }; | |
| 3779 | ||
| 3780 | var skip = function( event ) { | |
| 3781 | if ( ( !event ) || ( !event.target ) ) { | |
| 3782 | return; | |
| 3783 | } | |
| 3784 | ||
| 3785 | if ( event.detail.next.classList.contains( "skip" ) ) { | |
| 3786 | if ( event.detail.reason === "next" ) { | |
| 3787 | ||
| 3788 | // Go to the next next step instead | |
| 3789 | event.detail.next = getNextStep( event.detail.next ); | |
| 3790 | ||
| 3791 | // Recursively call this plugin again, until there's a step not to skip | |
| 3792 | skip( event ); | |
| 3793 | } else if ( event.detail.reason === "prev" ) { | |
| 3794 | ||
| 3795 | // Go to the previous previous step instead | |
| 3796 | event.detail.next = getPrevStep( event.detail.next ); | |
| 3797 | skip( event ); | |
| 3798 | } | |
| 3799 | ||
| 3800 | // If the new next element has its own transitionDuration, we're responsible for setting | |
| 3801 | // that on the event as well | |
| 3802 | event.detail.transitionDuration = util.toNumber( | |
| 3803 | event.detail.next.dataset.transitionDuration, event.detail.transitionDuration | |
| 3804 | ); | |
| 3805 | } | |
| 3806 | }; | |
| 3807 | ||
| 3808 | // Register the plugin to be called in pre-stepleave phase | |
| 3809 | // The weight makes this plugin run early. This is a good thing, because this plugin calls | |
| 3810 | // itself recursively. | |
| 3811 | window.impress.addPreStepLeavePlugin( skip, 1 ); | |
| 3812 | ||
| 3813 | } )( document, window ); | |
| 3814 | ||
| 3815 | ||
| 3816 | /** | |
| 3817 | * Stop Plugin | |
| 3818 | * | |
| 3819 | * Example: | |
| 3820 | * | |
| 3821 | * <!-- Stop at this slide. | |
| 3822 | * (For example, when used on the last slide, this prevents the | |
| 3823 | * presentation from wrapping back to the beginning.) --> | |
| 3824 | * <div class="step stop"> | |
| 3825 | * | |
| 3826 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 3827 | * Released under the MIT license. | |
| 3828 | */ | |
| 3829 | /* global document, window */ | |
| 3830 | ( function( document, window ) { | |
| 3831 | "use strict"; | |
| 3832 | ||
| 3833 | var stop = function( event ) { | |
| 3834 | if ( ( !event ) || ( !event.target ) ) { | |
| 3835 | return; | |
| 3836 | } | |
| 3837 | ||
| 3838 | if ( event.target.classList.contains( "stop" ) ) { | |
| 3839 | if ( event.detail.reason === "next" ) { | |
| 3840 | return false; | |
| 3841 | } | |
| 3842 | } | |
| 3843 | }; | |
| 3844 | ||
| 3845 | // Register the plugin to be called in pre-stepleave phase | |
| 3846 | // The weight makes this plugin run fairly early. | |
| 3847 | window.impress.addPreStepLeavePlugin( stop, 2 ); | |
| 3848 | ||
| 3849 | } )( document, window ); | |
| 3850 | ||
| 3851 | ||
| 3852 | /** | |
| 3853 | * Substep Plugin | |
| 3854 | * | |
| 3855 | * Copyright 2017 Henrik Ingo (@henrikingo) | |
| 3856 | * Released under the MIT license. | |
| 3857 | */ | |
| 3858 | ||
| 3859 | /* global document, window */ | |
| 3860 | ||
| 3861 | ( function( document, window ) { | |
| 3862 | "use strict"; | |
| 3863 | ||
| 3864 | // Copied from core impress.js. Good candidate for moving to src/lib/util.js. | |
| 3865 | var triggerEvent = function( el, eventName, detail ) { | |
| 3866 | var event = document.createEvent( "CustomEvent" ); | |
| 3867 | event.initCustomEvent( eventName, true, true, detail ); | |
| 3868 | el.dispatchEvent( event ); | |
| 3869 | }; | |
| 3870 | ||
| 3871 | var activeStep = null; | |
| 3872 | document.addEventListener( "impress:stepenter", function( event ) { | |
| 3873 | activeStep = event.target; | |
| 3874 | }, false ); | |
| 3875 | ||
| 3876 | var substep = function( event ) { | |
| 3877 | if ( ( !event ) || ( !event.target ) ) { | |
| 3878 | return; | |
| 3879 | } | |
| 3880 | ||
| 3881 | var step = event.target; | |
| 3882 | var el; // Needed by jshint | |
| 3883 | if ( event.detail.reason === "next" ) { | |
| 3884 | el = showSubstepIfAny( step ); | |
| 3885 | if ( el ) { | |
| 3886 | ||
| 3887 | // Send a message to others, that we aborted a stepleave event. | |
| 3888 | // Autoplay will reload itself from this, as there won't be a stepenter event now. | |
| 3889 | triggerEvent( step, "impress:substep:stepleaveaborted", | |
| 3890 | { reason: "next", substep: el } ); | |
| 3891 | ||
| 3892 | // Returning false aborts the stepleave event | |
| 3893 | return false; | |
| 3894 | } | |
| 3895 | } | |
| 3896 | if ( event.detail.reason === "prev" ) { | |
| 3897 | el = hideSubstepIfAny( step ); | |
| 3898 | if ( el ) { | |
| 3899 | triggerEvent( step, "impress:substep:stepleaveaborted", | |
| 3900 | { reason: "prev", substep: el } ); | |
| 3901 | return false; | |
| 3902 | } | |
| 3903 | } | |
| 3904 | }; | |
| 3905 | ||
| 3906 | var showSubstepIfAny = function( step ) { | |
| 3907 | var substeps = step.querySelectorAll( ".substep" ); | |
| 3908 | var visible = step.querySelectorAll( ".substep-visible" ); | |
| 3909 | if ( substeps.length > 0 ) { | |
| 3910 | return showSubstep( substeps, visible ); | |
| 3911 | } | |
| 3912 | }; | |
| 3913 | ||
| 3914 | var showSubstep = function( substeps, visible ) { | |
| 3915 | if ( visible.length < substeps.length ) { | |
| 3916 | var el = substeps[ visible.length ]; | |
| 3917 | el.classList.add( "substep-visible" ); | |
| 3918 | return el; | |
| 3919 | } | |
| 3920 | }; | |
| 3921 | ||
| 3922 | var hideSubstepIfAny = function( step ) { | |
| 3923 | var substeps = step.querySelectorAll( ".substep" ); | |
| 3924 | var visible = step.querySelectorAll( ".substep-visible" ); | |
| 3925 | if ( substeps.length > 0 ) { | |
| 3926 | return hideSubstep( visible ); | |
| 3927 | } | |
| 3928 | }; | |
| 3929 | ||
| 3930 | var hideSubstep = function( visible ) { | |
| 3931 | if ( visible.length > 0 ) { | |
| 3932 | var el = visible[ visible.length - 1 ]; | |
| 3933 | el.classList.remove( "substep-visible" ); | |
| 3934 | return el; | |
| 3935 | } | |
| 3936 | }; | |
| 3937 | ||
| 3938 | // Register the plugin to be called in pre-stepleave phase. | |
| 3939 | // The weight makes this plugin run before other preStepLeave plugins. | |
| 3940 | window.impress.addPreStepLeavePlugin( substep, 1 ); | |
| 3941 | ||
| 3942 | // When entering a step, in particular when re-entering, make sure that all substeps are hidden | |
| 3943 | // at first | |
| 3944 | document.addEventListener( "impress:stepenter", function( event ) { | |
| 3945 | var step = event.target; | |
| 3946 | var visible = step.querySelectorAll( ".substep-visible" ); | |
| 3947 | for ( var i = 0; i < visible.length; i++ ) { | |
| 3948 | visible[ i ].classList.remove( "substep-visible" ); | |
| 3949 | } | |
| 3950 | }, false ); | |
| 3951 | ||
| 3952 | // API for others to reveal/hide next substep //////////////////////////////////////////////// | |
| 3953 | document.addEventListener( "impress:substep:show", function() { | |
| 3954 | showSubstepIfAny( activeStep ); | |
| 3955 | }, false ); | |
| 3956 | ||
| 3957 | document.addEventListener( "impress:substep:hide", function() { | |
| 3958 | hideSubstepIfAny( activeStep ); | |
| 3959 | }, false ); | |
| 3960 | ||
| 3961 | } )( document, window ); | |
| 3962 | ||
| 3963 | ||
| 3964 | /** | |
| 3965 | * Support for swipe and tap on touch devices | |
| 3966 | * | |
| 3967 | * This plugin implements navigation for plugin devices, via swiping left/right, | |
| 3968 | * or tapping on the left/right edges of the screen. | |
| 3969 | * | |
| 3970 | * | |
| 3971 | * | |
| 3972 | * Copyright 2015: Andrew Dunai (@and3rson) | |
| 3973 | * Modified to a plugin, 2016: Henrik Ingo (@henrikingo) | |
| 3974 | * | |
| 3975 | * MIT License | |
| 3976 | */ | |
| 3977 | /* global document, window */ | |
| 3978 | ( function( document, window ) { | |
| 3979 | "use strict"; | |
| 3980 | ||
| 3981 | // Touch handler to detect swiping left and right based on window size. | |
| 3982 | // If the difference in X change is bigger than 1/20 of the screen width, | |
| 3983 | // we simply call an appropriate API function to complete the transition. | |
| 3984 | var startX = 0; | |
| 3985 | var lastX = 0; | |
| 3986 | var lastDX = 0; | |
| 3987 | var threshold = window.innerWidth / 20; | |
| 3988 | ||
| 3989 | document.addEventListener( "touchstart", function( event ) { | |
| 3990 | lastX = startX = event.touches[ 0 ].clientX; | |
| 3991 | } ); | |
| 3992 | ||
| 3993 | document.addEventListener( "touchmove", function( event ) { | |
| 3994 | var x = event.touches[ 0 ].clientX; | |
| 3995 | var diff = x - startX; | |
| 3996 | ||
| 3997 | // To be used in touchend | |
| 3998 | lastDX = lastX - x; | |
| 3999 | lastX = x; | |
| 4000 | ||
| 4001 | window.impress().swipe( diff / window.innerWidth ); | |
| 4002 | } ); | |
| 4003 | ||
| 4004 | document.addEventListener( "touchend", function() { | |
| 4005 | var totalDiff = lastX - startX; | |
| 4006 | if ( Math.abs( totalDiff ) > window.innerWidth / 5 && ( totalDiff * lastDX ) <= 0 ) { | |
| 4007 | if ( totalDiff > window.innerWidth / 5 && lastDX <= 0 ) { | |
| 4008 | window.impress().prev(); | |
| 4009 | } else if ( totalDiff < -window.innerWidth / 5 && lastDX >= 0 ) { | |
| 4010 | window.impress().next(); | |
| 4011 | } | |
| 4012 | } else if ( Math.abs( lastDX ) > threshold ) { | |
| 4013 | if ( lastDX < -threshold ) { | |
| 4014 | window.impress().prev(); | |
| 4015 | } else if ( lastDX > threshold ) { | |
| 4016 | window.impress().next(); | |
| 4017 | } | |
| 4018 | } else { | |
| 4019 | ||
| 4020 | // No movement - move (back) to the current slide | |
| 4021 | window.impress().goto( document.querySelector( "#impress .step.active" ) ); | |
| 4022 | } | |
| 4023 | } ); | |
| 4024 | ||
| 4025 | document.addEventListener( "touchcancel", function() { | |
| 4026 | ||
| 4027 | // Move (back) to the current slide | |
| 4028 | window.impress().goto( document.querySelector( "#impress .step.active" ) ); | |
| 4029 | } ); | |
| 4030 | ||
| 4031 | } )( document, window ); | |
| 4032 | ||
| 4033 | /** | |
| 4034 | * Toolbar plugin | |
| 4035 | * | |
| 4036 | * This plugin provides a generic graphical toolbar. Other plugins that | |
| 4037 | * want to expose a button or other widget, can add those to this toolbar. | |
| 4038 | * | |
| 4039 | * Using a single consolidated toolbar for all GUI widgets makes it easier | |
| 4040 | * to position and style the toolbar rather than having to do that for lots | |
| 4041 | * of different divs. | |
| 4042 | * | |
| 4043 | * | |
| 4044 | * *** For presentation authors: ***************************************** | |
| 4045 | * | |
| 4046 | * To add/activate the toolbar in your presentation, add this div: | |
| 4047 | * | |
| 4048 | * <div id="impress-toolbar"></div> | |
| 4049 | * | |
| 4050 | * Styling the toolbar is left to presentation author. Here's an example CSS: | |
| 4051 | * | |
| 4052 | * .impress-enabled div#impress-toolbar { | |
| 4053 | * position: fixed; | |
| 4054 | * right: 1px; | |
| 4055 | * bottom: 1px; | |
| 4056 | * opacity: 0.6; | |
| 4057 | * } | |
| 4058 | * .impress-enabled div#impress-toolbar > span { | |
| 4059 | * margin-right: 10px; | |
| 4060 | * } | |
| 4061 | * | |
| 4062 | * The [mouse-timeout](../mouse-timeout/README.md) plugin can be leveraged to hide | |
| 4063 | * the toolbar from sight, and only make it visible when mouse is moved. | |
| 4064 | * | |
| 4065 | * body.impress-mouse-timeout div#impress-toolbar { | |
| 4066 | * display: none; | |
| 4067 | * } | |
| 4068 | * | |
| 4069 | * | |
| 4070 | * *** For plugin authors ********************************************** | |
| 4071 | * | |
| 4072 | * To add a button to the toolbar, trigger the `impress:toolbar:appendChild` | |
| 4073 | * or `impress:toolbar:insertBefore` events as appropriate. The detail object | |
| 4074 | * should contain following parameters: | |
| 4075 | * | |
| 4076 | * { group : 1, // integer. Widgets with the same group are grouped inside | |
| 4077 | * // the same <span> element. | |
| 4078 | * html : "<button>Click</button>", // The html to add. | |
| 4079 | * callback : "mycallback", // Toolbar plugin will trigger event | |
| 4080 | * // `impress:toolbar:added:mycallback` when done. | |
| 4081 | * before: element } // The reference element for an insertBefore() call. | |
| 4082 | * | |
| 4083 | * You should also listen to the `impress:toolbar:added:mycallback` event. At | |
| 4084 | * this point you can find the new widget in the DOM, and for example add an | |
| 4085 | * event listener to it. | |
| 4086 | * | |
| 4087 | * You are free to use any integer for the group. It's ok to leave gaps. It's | |
| 4088 | * ok to co-locate with widgets for another plugin, if you think they belong | |
| 4089 | * together. | |
| 4090 | * | |
| 4091 | * See navigation-ui for an example. | |
| 4092 | * | |
| 4093 | * Copyright 2016 Henrik Ingo (@henrikingo) | |
| 4094 | * Released under the MIT license. | |
| 4095 | */ | |
| 4096 | ||
| 4097 | /* global document */ | |
| 4098 | ||
| 4099 | ( function( document ) { | |
| 4100 | "use strict"; | |
| 4101 | var toolbar = document.getElementById( "impress-toolbar" ); | |
| 4102 | var groups = []; | |
| 4103 | ||
| 4104 | /** | |
| 4105 | * Get the span element that is a child of toolbar, identified by index. | |
| 4106 | * | |
| 4107 | * If span element doesn't exist yet, it is created. | |
| 4108 | * | |
| 4109 | * Note: Because of Run-to-completion, this is not a race condition. | |
| 4110 | * https://developer.mozilla.org/en/docs/Web/JavaScript/EventLoop#Run-to-completion | |
| 4111 | * | |
| 4112 | * :param: index Method will return the element <span id="impress-toolbar-group-{index}"> | |
| 4113 | */ | |
| 4114 | var getGroupElement = function( index ) { | |
| 4115 | var id = "impress-toolbar-group-" + index; | |
| 4116 | if ( !groups[ index ] ) { | |
| 4117 | groups[ index ] = document.createElement( "span" ); | |
| 4118 | groups[ index ].id = id; | |
| 4119 | var nextIndex = getNextGroupIndex( index ); | |
| 4120 | if ( nextIndex === undefined ) { | |
| 4121 | toolbar.appendChild( groups[ index ] ); | |
| 4122 | } else { | |
| 4123 | toolbar.insertBefore( groups[ index ], groups[ nextIndex ] ); | |
| 4124 | } | |
| 4125 | } | |
| 4126 | return groups[ index ]; | |
| 4127 | }; | |
| 4128 | ||
| 4129 | /** | |
| 4130 | * Get the span element from groups[] that is immediately after given index. | |
| 4131 | * | |
| 4132 | * This can be used to find the reference node for an insertBefore() call. | |
| 4133 | * If no element exists at a larger index, returns undefined. (In this case, | |
| 4134 | * you'd use appendChild() instead.) | |
| 4135 | * | |
| 4136 | * Note that index needn't itself exist in groups[]. | |
| 4137 | */ | |
| 4138 | var getNextGroupIndex = function( index ) { | |
| 4139 | var i = index + 1; | |
| 4140 | while ( !groups[ i ] && i < groups.length ) { | |
| 4141 | i++; | |
| 4142 | } | |
| 4143 | if ( i < groups.length ) { | |
| 4144 | return i; | |
| 4145 | } | |
| 4146 | }; | |
| 4147 | ||
| 4148 | // API | |
| 4149 | // Other plugins can add and remove buttons by sending them as events. | |
| 4150 | // In return, toolbar plugin will trigger events when button was added. | |
| 4151 | if ( toolbar ) { | |
| 4152 | /** | |
| 4153 | * Append a widget inside toolbar span element identified by given group index. | |
| 4154 | * | |
| 4155 | * :param: e.detail.group integer specifying the span element where widget will be placed | |
| 4156 | * :param: e.detail.element a dom element to add to the toolbar | |
| 4157 | */ | |
| 4158 | toolbar.addEventListener( "impress:toolbar:appendChild", function( e ) { | |
| 4159 | var group = getGroupElement( e.detail.group ); | |
| 4160 | group.appendChild( e.detail.element ); | |
| 4161 | } ); | |
| 4162 | ||
| 4163 | /** | |
| 4164 | * Add a widget to toolbar using insertBefore() DOM method. | |
| 4165 | * | |
| 4166 | * :param: e.detail.before the reference dom element, before which new element is added | |
| 4167 | * :param: e.detail.element a dom element to add to the toolbar | |
| 4168 | */ | |
| 4169 | toolbar.addEventListener( "impress:toolbar:insertBefore", function( e ) { | |
| 4170 | toolbar.insertBefore( e.detail.element, e.detail.before ); | |
| 4171 | } ); | |
| 4172 | ||
| 4173 | /** | |
| 4174 | * Remove the widget in e.detail.remove. | |
| 4175 | */ | |
| 4176 | toolbar.addEventListener( "impress:toolbar:removeWidget", function( e ) { | |
| 4177 | toolbar.removeChild( e.detail.remove ); | |
| 4178 | } ); | |
| 4179 | ||
| 4180 | document.addEventListener( "impress:init", function( event ) { | |
| 4181 | var api = event.detail.api; | |
| 4182 | api.lib.gc.pushCallback( function() { | |
| 4183 | toolbar.innerHTML = ""; | |
| 4184 | groups = []; | |
| 4185 | } ); | |
| 4186 | } ); | |
| 4187 | } // If toolbar | |
| 4188 | ||
| 4189 | } )( document ); | |
