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switch old toArray helper to Array.from

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This commit is contained in:
Hakim El Hattab 2020-03-16 15:18:47 +01:00
parent 6ff4e9306c
commit 2540712714
10 changed files with 111 additions and 113 deletions
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2
dist/reveal.min.js vendored
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File diff suppressed because one or more lines are too long

6
js/controllers/autoanimate.js
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@ -1,4 +1,4 @@
import { extend, toArray, createStyleSheet } from '../utils/util.js' import { queryAll, extend, createStyleSheet } from '../utils/util.js'
/** /**
* Automatically animates matching elements across * Automatically animates matching elements across
@ -87,12 +87,12 @@ export default class AutoAnimate {
reset() { reset() {
// Reset slides // Reset slides
toArray( this.Reveal.getRevealElement().querySelectorAll( '[data-auto-animate]:not([data-auto-animate=""])' ) ).forEach( element => { queryAll( this.Reveal.getRevealElement(), '[data-auto-animate]:not([data-auto-animate=""])' ).forEach( element => {
element.dataset.autoAnimate = ''; element.dataset.autoAnimate = '';
} ); } );
// Reset elements // Reset elements
toArray( this.Reveal.getRevealElement().querySelectorAll( '[data-auto-animate-target]' ) ).forEach( element => { queryAll( this.Reveal.getRevealElement(), '[data-auto-animate-target]' ).forEach( element => {
delete element.dataset.autoAnimateTarget; delete element.dataset.autoAnimateTarget;
} ); } );

8
js/controllers/backgrounds.js
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@ -1,4 +1,4 @@
import { toArray } from '../utils/util.js' import { queryAll } from '../utils/util.js'
import { colorToRgb, colorBrightness } from '../utils/color.js' import { colorToRgb, colorBrightness } from '../utils/color.js'
/** /**
@ -39,7 +39,7 @@ export default class Backgrounds {
let backgroundStack = this.createBackground( slideh, this.element ); let backgroundStack = this.createBackground( slideh, this.element );
// Iterate over all vertical slides // Iterate over all vertical slides
toArray( slideh.querySelectorAll( 'section' ) ).forEach( slidev => { queryAll( slideh, 'section' ).forEach( slidev => {
this.createBackground( slidev, backgroundStack ); this.createBackground( slidev, backgroundStack );
@ -238,7 +238,7 @@ export default class Backgrounds {
// Update the classes of all backgrounds to match the // Update the classes of all backgrounds to match the
// states of their slides (past/present/future) // states of their slides (past/present/future)
toArray( this.element.childNodes ).forEach( ( backgroundh, h ) => { Array.from( this.element.childNodes ).forEach( ( backgroundh, h ) => {
backgroundh.classList.remove( 'past', 'present', 'future' ); backgroundh.classList.remove( 'past', 'present', 'future' );
@ -256,7 +256,7 @@ export default class Backgrounds {
} }
if( includeAll || h === indices.h ) { if( includeAll || h === indices.h ) {
toArray( backgroundh.querySelectorAll( '.slide-background' ) ).forEach( ( backgroundv, v ) => { queryAll( backgroundh, '.slide-background' ).forEach( ( backgroundv, v ) => {
backgroundv.classList.remove( 'past', 'present', 'future' ); backgroundv.classList.remove( 'past', 'present', 'future' );

14
js/controllers/controls.js vendored
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@ -1,4 +1,4 @@
import { toArray } from '../utils/util.js' import { queryAll } from '../utils/util.js'
import { isAndroid } from '../utils/device.js' import { isAndroid } from '../utils/device.js'
/** /**
@ -44,12 +44,12 @@ export default class Controls {
this.Reveal.getRevealElement().appendChild( this.element ); this.Reveal.getRevealElement().appendChild( this.element );
// There can be multiple instances of controls throughout the page // There can be multiple instances of controls throughout the page
this.controlsLeft = toArray( revealElement.querySelectorAll( '.navigate-left' ) ); this.controlsLeft = queryAll( revealElement, '.navigate-left' );
this.controlsRight = toArray( revealElement.querySelectorAll( '.navigate-right' ) ); this.controlsRight = queryAll( revealElement, '.navigate-right' );
this.controlsUp = toArray( revealElement.querySelectorAll( '.navigate-up' ) ); this.controlsUp = queryAll( revealElement, '.navigate-up' );
this.controlsDown = toArray( revealElement.querySelectorAll( '.navigate-down' ) ); this.controlsDown = queryAll( revealElement, '.navigate-down' );
this.controlsPrev = toArray( revealElement.querySelectorAll( '.navigate-prev' ) ); this.controlsPrev = queryAll( revealElement, '.navigate-prev' );
this.controlsNext = toArray( revealElement.querySelectorAll( '.navigate-next' ) ); this.controlsNext = queryAll( revealElement, '.navigate-next' );
// The left, right and down arrows in the standard reveal.js controls // The left, right and down arrows in the standard reveal.js controls
this.controlsRightArrow = this.element.querySelector( '.navigate-right' ); this.controlsRightArrow = this.element.querySelector( '.navigate-right' );

12
js/controllers/fragments.js
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@ -1,4 +1,4 @@
import { extend, toArray } from '../utils/util.js' import { extend, queryAll } from '../utils/util.js'
/** /**
* Handles sorting and navigation of slide fragments. * Handles sorting and navigation of slide fragments.
@ -33,7 +33,7 @@ export default class Fragments {
*/ */
disable() { disable() {
toArray( this.Reveal.getSlidesElement().querySelectorAll( '.fragment' ) ).forEach( element => { queryAll( this.Reveal.getSlidesElement(), '.fragment' ).forEach( element => {
element.classList.add( 'visible' ); element.classList.add( 'visible' );
element.classList.remove( 'current-fragment' ); element.classList.remove( 'current-fragment' );
} ); } );
@ -46,7 +46,7 @@ export default class Fragments {
*/ */
enable() { enable() {
toArray( this.Reveal.getSlidesElement().querySelectorAll( '.fragment' ) ).forEach( element => { queryAll( this.Reveal.getSlidesElement(), '.fragment' ).forEach( element => {
element.classList.remove( 'visible' ); element.classList.remove( 'visible' );
element.classList.remove( 'current-fragment' ); element.classList.remove( 'current-fragment' );
} ); } );
@ -98,7 +98,7 @@ export default class Fragments {
*/ */
sort( fragments, grouped = false ) { sort( fragments, grouped = false ) {
fragments = toArray( fragments ); fragments = Array.from( fragments );
let ordered = [], let ordered = [],
unordered = [], unordered = [],
@ -151,7 +151,7 @@ export default class Fragments {
this.Reveal.getHorizontalSlides().forEach( horizontalSlide => { this.Reveal.getHorizontalSlides().forEach( horizontalSlide => {
let verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) ); let verticalSlides = queryAll( horizontalSlide, 'section' );
verticalSlides.forEach( ( verticalSlide, y ) => { verticalSlides.forEach( ( verticalSlide, y ) => {
this.sort( verticalSlide.querySelectorAll( '.fragment' ) ); this.sort( verticalSlide.querySelectorAll( '.fragment' ) );
@ -197,7 +197,7 @@ export default class Fragments {
} }
} }
toArray( fragments ).forEach( ( el, i ) => { Array.from( fragments ).forEach( ( el, i ) => {
if( el.hasAttribute( 'data-fragment-index' ) ) { if( el.hasAttribute( 'data-fragment-index' ) ) {
i = parseInt( el.getAttribute( 'data-fragment-index' ), 10 ); i = parseInt( el.getAttribute( 'data-fragment-index' ), 10 );

14
js/controllers/overview.js
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@ -1,5 +1,5 @@
import { SLIDES_SELECTOR } from '../utils/constants.js' import { SLIDES_SELECTOR } from '../utils/constants.js'
import { extend, toArray, transformElement } from '../utils/util.js' import { extend, queryAll, transformElement } from '../utils/util.js'
/** /**
* Handles all logic related to the overview mode * Handles all logic related to the overview mode
@ -38,7 +38,7 @@ export default class Overview {
this.Reveal.getSlidesElement().appendChild( this.Reveal.getBackgroundsElement() ); this.Reveal.getSlidesElement().appendChild( this.Reveal.getBackgroundsElement() );
// Clicking on an overview slide navigates to it // Clicking on an overview slide navigates to it
toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( slide => {
if( !slide.classList.contains( 'stack' ) ) { if( !slide.classList.contains( 'stack' ) ) {
slide.addEventListener( 'click', this.onSlideClicked, true ); slide.addEventListener( 'click', this.onSlideClicked, true );
} }
@ -91,7 +91,7 @@ export default class Overview {
if( hslide.classList.contains( 'stack' ) ) { if( hslide.classList.contains( 'stack' ) ) {
toArray( hslide.querySelectorAll( 'section' ) ).forEach( ( vslide, v ) => { queryAll( hslide, 'section' ).forEach( ( vslide, v ) => {
vslide.setAttribute( 'data-index-h', h ); vslide.setAttribute( 'data-index-h', h );
vslide.setAttribute( 'data-index-v', v ); vslide.setAttribute( 'data-index-v', v );
@ -102,10 +102,10 @@ export default class Overview {
} ); } );
// Layout slide backgrounds // Layout slide backgrounds
toArray( this.Reveal.getBackgroundsElement().childNodes ).forEach( ( hbackground, h ) => { Array.from( this.Reveal.getBackgroundsElement().childNodes ).forEach( ( hbackground, h ) => {
transformElement( hbackground, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' ); transformElement( hbackground, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' );
toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( ( vbackground, v ) => { queryAll( hbackground, '.slide-background' ).forEach( ( vbackground, v ) => {
transformElement( vbackground, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' ); transformElement( vbackground, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' );
} ); } );
} ); } );
@ -158,14 +158,14 @@ export default class Overview {
this.Reveal.getRevealElement().appendChild( this.Reveal.getBackgroundsElement() ); this.Reveal.getRevealElement().appendChild( this.Reveal.getBackgroundsElement() );
// Clean up changes made to slides // Clean up changes made to slides
toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( slide => {
transformElement( slide, '' ); transformElement( slide, '' );
slide.removeEventListener( 'click', this.onSlideClicked, true ); slide.removeEventListener( 'click', this.onSlideClicked, true );
} ); } );
// Clean up changes made to backgrounds // Clean up changes made to backgrounds
toArray( this.Reveal.getBackgroundsElement().querySelectorAll( '.slide-background' ) ).forEach( background => { queryAll( this.Reveal.getBackgroundsElement(), '.slide-background' ).forEach( background => {
transformElement( background, '' ); transformElement( background, '' );
} ); } );

8
js/controllers/print.js
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@ -1,5 +1,5 @@
import { SLIDES_SELECTOR } from '../utils/constants.js' import { SLIDES_SELECTOR } from '../utils/constants.js'
import { toArray, createStyleSheet } from '../utils/util.js' import { queryAll, createStyleSheet } from '../utils/util.js'
/** /**
* Setups up our presentation for printing/exporting to PDF. * Setups up our presentation for printing/exporting to PDF.
@ -45,12 +45,12 @@ export default class Print {
// Compute slide numbers now, before we start duplicating slides // Compute slide numbers now, before we start duplicating slides
let doingSlideNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber ); let doingSlideNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber );
toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) { queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( function( slide ) {
slide.setAttribute( 'data-slide-number', this.Reveal.slideNumber.getSlideNumber( slide ) ); slide.setAttribute( 'data-slide-number', this.Reveal.slideNumber.getSlideNumber( slide ) );
}, this ); }, this );
// Slide and slide background layout // Slide and slide background layout
toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) { queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( function( slide ) {
// Vertical stacks are not centred since their section // Vertical stacks are not centred since their section
// children will be // children will be
@ -169,7 +169,7 @@ export default class Print {
} }
// Show all fragments // Show all fragments
else { else {
toArray( page.querySelectorAll( '.fragment:not(.fade-out)' ) ).forEach( function( fragment ) { queryAll( page, '.fragment:not(.fade-out)' ).forEach( function( fragment ) {
fragment.classList.add( 'visible' ); fragment.classList.add( 'visible' );
} ); } );
} }

34
js/controllers/slidecontent.js
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@ -1,5 +1,5 @@
import { HORIZONTAL_SLIDES_SELECTOR, VERTICAL_SLIDES_SELECTOR } from '../utils/constants.js' import { HORIZONTAL_SLIDES_SELECTOR, VERTICAL_SLIDES_SELECTOR } from '../utils/constants.js'
import { extend, toArray, closestParent } from '../utils/util.js' import { extend, queryAll, closestParent } from '../utils/util.js'
import { isMobile } from '../utils/device.js' import { isMobile } from '../utils/device.js'
/** /**
@ -47,7 +47,7 @@ export default class SlideContent {
slide.style.display = this.Reveal.getConfig().display; slide.style.display = this.Reveal.getConfig().display;
// Media elements with data-src attributes // Media elements with data-src attributes
toArray( slide.querySelectorAll( 'img[data-src], video[data-src], audio[data-src], iframe[data-src]' ) ).forEach( element => { queryAll( slide, 'img[data-src], video[data-src], audio[data-src], iframe[data-src]' ).forEach( element => {
if( element.tagName !== 'IFRAME' || this.shouldPreload( element ) ) { if( element.tagName !== 'IFRAME' || this.shouldPreload( element ) ) {
element.setAttribute( 'src', element.getAttribute( 'data-src' ) ); element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
element.setAttribute( 'data-lazy-loaded', '' ); element.setAttribute( 'data-lazy-loaded', '' );
@ -56,10 +56,10 @@ export default class SlideContent {
} ); } );
// Media elements with <source> children // Media elements with <source> children
toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( media => { queryAll( slide, 'video, audio' ).forEach( media => {
let sources = 0; let sources = 0;
toArray( media.querySelectorAll( 'source[data-src]' ) ).forEach( source => { queryAll( media, 'source[data-src]' ).forEach( source => {
source.setAttribute( 'src', source.getAttribute( 'data-src' ) ); source.setAttribute( 'src', source.getAttribute( 'data-src' ) );
source.removeAttribute( 'data-src' ); source.removeAttribute( 'data-src' );
source.setAttribute( 'data-lazy-loaded', '' ); source.setAttribute( 'data-lazy-loaded', '' );
@ -176,19 +176,19 @@ export default class SlideContent {
background.style.display = 'none'; background.style.display = 'none';
// Unload any background iframes // Unload any background iframes
toArray( background.querySelectorAll( 'iframe[src]' ) ).forEach( element => { queryAll( background, 'iframe[src]' ).forEach( element => {
element.removeAttribute( 'src' ); element.removeAttribute( 'src' );
} ); } );
} }
// Reset lazy-loaded media elements with src attributes // Reset lazy-loaded media elements with src attributes
toArray( slide.querySelectorAll( 'video[data-lazy-loaded][src], audio[data-lazy-loaded][src], iframe[data-lazy-loaded][src]' ) ).forEach( element => { queryAll( slide, 'video[data-lazy-loaded][src], audio[data-lazy-loaded][src], iframe[data-lazy-loaded][src]' ).forEach( element => {
element.setAttribute( 'data-src', element.getAttribute( 'src' ) ); element.setAttribute( 'data-src', element.getAttribute( 'src' ) );
element.removeAttribute( 'src' ); element.removeAttribute( 'src' );
} ); } );
// Reset lazy-loaded media elements with <source> children // Reset lazy-loaded media elements with <source> children
toArray( slide.querySelectorAll( 'video[data-lazy-loaded] source[src], audio source[src]' ) ).forEach( source => { queryAll( slide, 'video[data-lazy-loaded] source[src], audio source[src]' ).forEach( source => {
source.setAttribute( 'data-src', source.getAttribute( 'src' ) ); source.setAttribute( 'data-src', source.getAttribute( 'src' ) );
source.removeAttribute( 'src' ); source.removeAttribute( 'src' );
} ); } );
@ -201,7 +201,7 @@ export default class SlideContent {
formatEmbeddedContent() { formatEmbeddedContent() {
let _appendParamToIframeSource = ( sourceAttribute, sourceURL, param ) => { let _appendParamToIframeSource = ( sourceAttribute, sourceURL, param ) => {
toArray( this.Reveal.getSlidesElement().querySelectorAll( 'iframe['+ sourceAttribute +'*="'+ sourceURL +'"]' ) ).forEach( el => { queryAll( this.Reveal.getSlidesElement(), 'iframe['+ sourceAttribute +'*="'+ sourceURL +'"]' ).forEach( el => {
let src = el.getAttribute( sourceAttribute ); let src = el.getAttribute( sourceAttribute );
if( src && src.indexOf( param ) === -1 ) { if( src && src.indexOf( param ) === -1 ) {
el.setAttribute( sourceAttribute, src + ( !/\?/.test( src ) ? '?' : '&' ) + param ); el.setAttribute( sourceAttribute, src + ( !/\?/.test( src ) ? '?' : '&' ) + param );
@ -230,14 +230,14 @@ export default class SlideContent {
if( element && !this.Reveal.isSpeakerNotes() ) { if( element && !this.Reveal.isSpeakerNotes() ) {
// Restart GIFs // Restart GIFs
toArray( element.querySelectorAll( 'img[src$=".gif"]' ) ).forEach( el => { queryAll( element, 'img[src$=".gif"]' ).forEach( el => {
// Setting the same unchanged source like this was confirmed // Setting the same unchanged source like this was confirmed
// to work in Chrome, FF & Safari // to work in Chrome, FF & Safari
el.setAttribute( 'src', el.getAttribute( 'src' ) ); el.setAttribute( 'src', el.getAttribute( 'src' ) );
} ); } );
// HTML5 media elements // HTML5 media elements
toArray( element.querySelectorAll( 'video, audio' ) ).forEach( el => { queryAll( element, 'video, audio' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) { if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
return; return;
} }
@ -285,7 +285,7 @@ export default class SlideContent {
} ); } );
// Normal iframes // Normal iframes
toArray( element.querySelectorAll( 'iframe[src]' ) ).forEach( el => { queryAll( element, 'iframe[src]' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) { if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
return; return;
} }
@ -294,7 +294,7 @@ export default class SlideContent {
} ); } );
// Lazy loading iframes // Lazy loading iframes
toArray( element.querySelectorAll( 'iframe[data-src]' ) ).forEach( el => { queryAll( element, 'iframe[data-src]' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) { if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
return; return;
} }
@ -390,7 +390,7 @@ export default class SlideContent {
if( element && element.parentNode ) { if( element && element.parentNode ) {
// HTML5 media elements // HTML5 media elements
toArray( element.querySelectorAll( 'video, audio' ) ).forEach( el => { queryAll( element, 'video, audio' ).forEach( el => {
if( !el.hasAttribute( 'data-ignore' ) && typeof el.pause === 'function' ) { if( !el.hasAttribute( 'data-ignore' ) && typeof el.pause === 'function' ) {
el.setAttribute('data-paused-by-reveal', ''); el.setAttribute('data-paused-by-reveal', '');
el.pause(); el.pause();
@ -398,20 +398,20 @@ export default class SlideContent {
} ); } );
// Generic postMessage API for non-lazy loaded iframes // Generic postMessage API for non-lazy loaded iframes
toArray( element.querySelectorAll( 'iframe' ) ).forEach( el => { queryAll( element, 'iframe' ).forEach( el => {
if( el.contentWindow ) el.contentWindow.postMessage( 'slide:stop', '*' ); if( el.contentWindow ) el.contentWindow.postMessage( 'slide:stop', '*' );
el.removeEventListener( 'load', this.startEmbeddedIframe ); el.removeEventListener( 'load', this.startEmbeddedIframe );
}); });
// YouTube postMessage API // YouTube postMessage API
toArray( element.querySelectorAll( 'iframe[src*="youtube.com/embed/"]' ) ).forEach( el => { queryAll( element, 'iframe[src*="youtube.com/embed/"]' ).forEach( el => {
if( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) { if( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) {
el.contentWindow.postMessage( '{"event":"command","func":"pauseVideo","args":""}', '*' ); el.contentWindow.postMessage( '{"event":"command","func":"pauseVideo","args":""}', '*' );
} }
}); });
// Vimeo postMessage API // Vimeo postMessage API
toArray( element.querySelectorAll( 'iframe[src*="player.vimeo.com/"]' ) ).forEach( el => { queryAll( element, 'iframe[src*="player.vimeo.com/"]' ).forEach( el => {
if( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) { if( !el.hasAttribute( 'data-ignore' ) && el.contentWindow && typeof el.contentWindow.postMessage === 'function' ) {
el.contentWindow.postMessage( '{"method":"pause"}', '*' ); el.contentWindow.postMessage( '{"method":"pause"}', '*' );
} }
@ -419,7 +419,7 @@ export default class SlideContent {
if( options.unloadIframes === true ) { if( options.unloadIframes === true ) {
// Unload lazy-loaded iframes // Unload lazy-loaded iframes
toArray( element.querySelectorAll( 'iframe[data-src]' ) ).forEach( el => { queryAll( element, 'iframe[data-src]' ).forEach( el => {
// Only removing the src doesn't actually unload the frame // Only removing the src doesn't actually unload the frame
// in all browsers (Firefox) so we set it to blank first // in all browsers (Firefox) so we set it to blank first
el.setAttribute( 'src', 'about:blank' ); el.setAttribute( 'src', 'about:blank' );

80
js/reveal.js
View file

@ -23,12 +23,13 @@ import {
} from './utils/constants.js' } from './utils/constants.js'
import { import {
extend, extend,
toArray, queryAll,
deserialize, deserialize,
transformElement, transformElement,
createSingletonNode, createSingletonNode,
closestParent, closestParent,
getQueryHash getQueryHash,
getRemainingHeight
} from './utils/util.js' } from './utils/util.js'
/** /**
@ -298,7 +299,7 @@ export default function( revealElement, options ) {
let isDisplayHidden = window.getComputedStyle( node )['display'] === 'none'; let isDisplayHidden = window.getComputedStyle( node )['display'] === 'none';
if( isAriaHidden !== 'true' && !isDisplayHidden ) { if( isAriaHidden !== 'true' && !isDisplayHidden ) {
toArray( node.childNodes ).forEach( child => { Array.from( node.childNodes ).forEach( child => {
text += getStatusText( child ); text += getStatusText( child );
} ); } );
@ -559,43 +560,6 @@ export default function( revealElement, options ) {
} }
/**
* Returns the remaining height within the parent of the
* target element.
*
* remaining height = [ configured parent height ] - [ current parent height ]
*
* @param {HTMLElement} element
* @param {number} [height]
*/
function getRemainingHeight( element, height = 0 ) {
if( element ) {
let newHeight, oldHeight = element.style.height;
// Change the .stretch element height to 0 in order find the height of all
// the other elements
element.style.height = '0px';
// In Overview mode, the parent (.slide) height is set of 700px.
// Restore it temporarily to its natural height.
element.parentNode.style.height = 'auto';
newHeight = height - element.parentNode.offsetHeight;
// Restore the old height, just in case
element.style.height = oldHeight + 'px';
// Clear the parent (.slide) height. .removeProperty works in IE9+
element.parentNode.style.removeProperty('height');
return newHeight;
}
return height;
}
/** /**
* Dispatches an event of the specified type from the * Dispatches an event of the specified type from the
* reveal DOM element. * reveal DOM element.
@ -641,7 +605,7 @@ export default function( revealElement, options ) {
*/ */
function enablePreviewLinks( selector = 'a' ) { function enablePreviewLinks( selector = 'a' ) {
toArray( dom.wrapper.querySelectorAll( selector ) ).forEach( element => { Array.from( dom.wrapper.querySelectorAll( selector ) ).forEach( element => {
if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) {
element.addEventListener( 'click', onPreviewLinkClicked, false ); element.addEventListener( 'click', onPreviewLinkClicked, false );
} }
@ -654,7 +618,7 @@ export default function( revealElement, options ) {
*/ */
function disablePreviewLinks( selector = 'a' ) { function disablePreviewLinks( selector = 'a' ) {
toArray( dom.wrapper.querySelectorAll( selector ) ).forEach( element => { Array.from( dom.wrapper.querySelectorAll( selector ) ).forEach( element => {
if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) {
element.removeEventListener( 'click', onPreviewLinkClicked, false ); element.removeEventListener( 'click', onPreviewLinkClicked, false );
} }
@ -864,7 +828,7 @@ export default function( revealElement, options ) {
} }
// Select all slides, vertical and horizontal // Select all slides, vertical and horizontal
const slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ); const slides = Array.from( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) );
for( let i = 0, len = slides.length; i < len; i++ ) { for( let i = 0, len = slides.length; i < len; i++ ) {
const slide = slides[ i ]; const slide = slides[ i ];
@ -923,7 +887,7 @@ export default function( revealElement, options ) {
function layoutSlideContents( width, height ) { function layoutSlideContents( width, height ) {
// Handle sizing of elements with the 'stretch' class // Handle sizing of elements with the 'stretch' class
toArray( dom.slides.querySelectorAll( 'section > .stretch' ) ).forEach( element => { queryAll( dom.slides, 'section > .stretch' ).forEach( element => {
// Determine how much vertical space we can use // Determine how much vertical space we can use
let remainingHeight = getRemainingHeight( element, height ); let remainingHeight = getRemainingHeight( element, height );
@ -1340,7 +1304,6 @@ export default function( revealElement, options ) {
// Announce the current slide contents to screen readers // Announce the current slide contents to screen readers
announceStatus( getStatusText( currentSlide ) ); announceStatus( getStatusText( currentSlide ) );
progress.update(); progress.update();
controls.update(); controls.update();
notes.update(); notes.update();
@ -1459,7 +1422,7 @@ export default function( revealElement, options ) {
getHorizontalSlides().forEach( horizontalSlide => { getHorizontalSlides().forEach( horizontalSlide => {
toArray( horizontalSlide.querySelectorAll( 'section' ) ).forEach( ( verticalSlide, y ) => { queryAll( horizontalSlide, 'section' ).forEach( ( verticalSlide, y ) => {
if( y > 0 ) { if( y > 0 ) {
verticalSlide.classList.remove( 'present' ); verticalSlide.classList.remove( 'present' );
@ -1506,7 +1469,7 @@ export default function( revealElement, options ) {
// Select all slides and convert the NodeList result to // Select all slides and convert the NodeList result to
// an array // an array
let slides = toArray( dom.wrapper.querySelectorAll( selector ) ), let slides = queryAll( dom.wrapper, selector ),
slidesLength = slides.length; slidesLength = slides.length;
let printMode = print.isPrintingPDF(); let printMode = print.isPrintingPDF();
@ -1553,7 +1516,7 @@ export default function( revealElement, options ) {
if( config.fragments ) { if( config.fragments ) {
// Show all fragments in prior slides // Show all fragments in prior slides
toArray( element.querySelectorAll( '.fragment' ) ).forEach( fragment => { queryAll( element, '.fragment' ).forEach( fragment => {
fragment.classList.add( 'visible' ); fragment.classList.add( 'visible' );
fragment.classList.remove( 'current-fragment' ); fragment.classList.remove( 'current-fragment' );
} ); } );
@ -1565,7 +1528,7 @@ export default function( revealElement, options ) {
if( config.fragments ) { if( config.fragments ) {
// Hide all fragments in future slides // Hide all fragments in future slides
toArray( element.querySelectorAll( '.fragment.visible' ) ).forEach( fragment => { queryAll( element, '.fragment.visible' ).forEach( fragment => {
fragment.classList.remove( 'visible', 'current-fragment' ); fragment.classList.remove( 'visible', 'current-fragment' );
} ); } );
} }
@ -1640,7 +1603,7 @@ export default function( revealElement, options ) {
for( let x = 0; x < horizontalSlidesLength; x++ ) { for( let x = 0; x < horizontalSlidesLength; x++ ) {
let horizontalSlide = horizontalSlides[x]; let horizontalSlide = horizontalSlides[x];
let verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) ), let verticalSlides = queryAll( horizontalSlide, 'section' ),
verticalSlidesLength = verticalSlides.length; verticalSlidesLength = verticalSlides.length;
// Determine how far away this slide is from the present // Determine how far away this slide is from the present
@ -1867,7 +1830,7 @@ export default function( revealElement, options ) {
// If this is a vertical slide, grab the vertical index // If this is a vertical slide, grab the vertical index
if( isVertical ) { if( isVertical ) {
v = Math.max( toArray( slide.parentNode.querySelectorAll( 'section' ) ).indexOf( slide ), 0 ); v = Math.max( queryAll( slide.parentNode, 'section' ).indexOf( slide ), 0 );
} }
} }
@ -1893,7 +1856,7 @@ export default function( revealElement, options ) {
*/ */
function getSlides() { function getSlides() {
return toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ':not(.stack):not([data-visibility="uncounted"])' ) ); return queryAll( dom.wrapper, SLIDES_SELECTOR + ':not(.stack):not([data-visibility="uncounted"])' );
} }
@ -1904,7 +1867,7 @@ export default function( revealElement, options ) {
*/ */
function getHorizontalSlides() { function getHorizontalSlides() {
return toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ); return queryAll( dom.wrapper, HORIZONTAL_SLIDES_SELECTOR );
} }
@ -1913,7 +1876,7 @@ export default function( revealElement, options ) {
*/ */
function getVerticalSlides() { function getVerticalSlides() {
return toArray( dom.wrapper.querySelectorAll( '.slides>section>section' ) ); return queryAll( dom.wrapper, '.slides>section>section' );
} }
@ -1922,7 +1885,7 @@ export default function( revealElement, options ) {
*/ */
function getVerticalStacks() { function getVerticalStacks() {
return toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.stack') ); return queryAll( dom.wrapper, HORIZONTAL_SLIDES_SELECTOR + '.stack');
} }
@ -2102,7 +2065,7 @@ export default function( revealElement, options ) {
// is divided up into fragments. // is divided up into fragments.
// playbackRate is accounted for in the duration. // playbackRate is accounted for in the duration.
if( currentSlide.querySelectorAll( '.fragment' ).length === 0 ) { if( currentSlide.querySelectorAll( '.fragment' ).length === 0 ) {
toArray( currentSlide.querySelectorAll( 'video, audio' ) ).forEach( el => { queryAll( currentSlide, 'video, audio' ).forEach( el => {
if( el.hasAttribute( 'data-autoplay' ) ) { if( el.hasAttribute( 'data-autoplay' ) ) {
if( autoSlide && (el.duration * 1000 / el.playbackRate ) > autoSlide ) { if( autoSlide && (el.duration * 1000 / el.playbackRate ) > autoSlide ) {
autoSlide = ( el.duration * 1000 / el.playbackRate ) + 1000; autoSlide = ( el.duration * 1000 / el.playbackRate ) + 1000;
@ -2244,10 +2207,10 @@ export default function( revealElement, options ) {
let previousSlide; let previousSlide;
if( config.rtl ) { if( config.rtl ) {
previousSlide = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.future' ) ).pop(); previousSlide = queryAll( dom.wrapper, HORIZONTAL_SLIDES_SELECTOR + '.future' ).pop();
} }
else { else {
previousSlide = toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR + '.past' ) ).pop(); previousSlide = queryAll( dom.wrapper, HORIZONTAL_SLIDES_SELECTOR + '.past' ).pop();
} }
if( previousSlide ) { if( previousSlide ) {
@ -2607,6 +2570,7 @@ export default function( revealElement, options ) {
// Returns reveal.js DOM elements // Returns reveal.js DOM elements
getRevealElement: () => dom.wrapper || document.querySelector( '.reveal' ), getRevealElement: () => dom.wrapper || document.querySelector( '.reveal' ),
getSlidesElement: () => dom.slides, getSlidesElement: () => dom.slides,
getBackgroundsElement: () => backgrounds.element,
// Checks if reveal.js has been loaded and is ready for use // Checks if reveal.js has been loaded and is ready for use
isReady: () => ready, isReady: () => ready,

46
js/utils/util.js
View file

@ -16,14 +16,11 @@ export const extend = ( a, b ) => {
} }
/** /**
* Converts the target object to an array. * querySelectorAll but returns an Array.
*
* @param {object} o
* @return {object[]}
*/ */
export const toArray = ( o ) => { export const queryAll = ( el, selector ) => {
return Array.prototype.slice.call( o ); return Array.from( el.querySelectorAll( selector ) );
} }
@ -221,3 +218,40 @@ export const getQueryHash = () => {
return query; return query;
} }
/**
* Returns the remaining height within the parent of the
* target element.
*
* remaining height = [ configured parent height ] - [ current parent height ]
*
* @param {HTMLElement} element
* @param {number} [height]
*/
export const getRemainingHeight = ( element, height = 0 ) => {
if( element ) {
let newHeight, oldHeight = element.style.height;
// Change the .stretch element height to 0 in order find the height of all
// the other elements
element.style.height = '0px';
// In Overview mode, the parent (.slide) height is set of 700px.
// Restore it temporarily to its natural height.
element.parentNode.style.height = 'auto';
newHeight = height - element.parentNode.offsetHeight;
// Restore the old height, just in case
element.style.height = oldHeight + 'px';
// Clear the parent (.slide) height. .removeProperty works in IE9+
element.parentNode.style.removeProperty('height');
return newHeight;
}
return height;
}