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polyfill element.closest for ie11

edit
Hakim El Hattab 2020-05-26 10:45:05 +02:00
parent e6244a57b5
commit b7487b8b4f
10 changed files with 45 additions and 34 deletions
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2
dist/reveal.esm.js vendored
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2
dist/reveal.js vendored
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0
examples/slide-backgrounds.html → examples/backgrounds.html
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12
examples/media.html
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@ -36,6 +36,18 @@
<audio src="assets/beeping.wav" data-autoplay></audio>
</section>
<section>
<h2>Audio inside slide fragments</h2>
<div class="fragment">
Beep 1
<audio src="assets/beeping.wav" data-autoplay></audio>
</div>
<div class="fragment">
Beep 2
<audio src="assets/beeping.wav" data-autoplay></audio>
</div>
</section>
<section>
<h2>Audio with controls</h2>
<audio src="assets/beeping.wav" controls></audio>

0
examples/slide-transitions.html → examples/transitions.html
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10
js/controllers/autoanimate.js
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@ -1,4 +1,4 @@
import { queryAll, extend, createStyleSheet, matchesSelector } from '../utils/util.js'
import { queryAll, extend, createStyleSheet, matches, closest } from '../utils/util.js'
import { FRAGMENT_STYLE_REGEX } from '../utils/constants.js'
// Counter used to generate unique IDs for auto-animated elements
@ -299,8 +299,8 @@ export default class AutoAnimate {
options = extend( options, inheritedOptions );
// Inherit options from parent elements
if( element.closest && element.parentNode ) {
let autoAnimatedParent = element.parentNode.closest( '[data-auto-animate-target]' );
if( element.parentNode ) {
let autoAnimatedParent = closest( element.parentNode, '[data-auto-animate-target]' );
if( autoAnimatedParent ) {
options = this.getAutoAnimateOptions( autoAnimatedParent, options );
}
@ -463,11 +463,11 @@ export default class AutoAnimate {
// Disable scale transformations on text nodes, we transiition
// each individual text property instead
if( matchesSelector( pair.from, textNodes ) ) {
if( matches( pair.from, textNodes ) ) {
pair.options = { scale: false };
}
// Animate individual lines of code
else if( matchesSelector( pair.from, codeNodes ) ) {
else if( matches( pair.from, codeNodes ) ) {
// Transition the code block's width and height instead of scaling
// to prevent its content from being squished

4
js/controllers/focus.js
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@ -1,3 +1,5 @@
import { closest } from '../utils/util.js'
/**
* Manages focus when a presentation is embedded. This
* helps us only capture keyboard from the presentation
@ -85,7 +87,7 @@ export default class Focus {
onDocumentPointerDown( event ) {
let revealElement = event.target.closest( '.reveal' );
let revealElement = closest( event.target, '.reveal' );
if( !revealElement || revealElement !== this.Reveal.getRevealElement() ) {
this.blur();
}

20
js/controllers/slidecontent.js
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@ -1,5 +1,5 @@
import { HORIZONTAL_SLIDES_SELECTOR, VERTICAL_SLIDES_SELECTOR } from '../utils/constants.js'
import { extend, queryAll, closestParent } from '../utils/util.js'
import { extend, queryAll, closest } from '../utils/util.js'
import { isMobile } from '../utils/device.js'
/**
@ -240,7 +240,7 @@ export default class SlideContent {
// HTML5 media elements
queryAll( element, 'video, audio' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
if( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {
return;
}
@ -250,7 +250,7 @@ export default class SlideContent {
// If no global setting is available, fall back on the element's
// own autoplay setting
if( typeof autoplay !== 'boolean' ) {
autoplay = el.hasAttribute( 'data-autoplay' ) || !!closestParent( el, '.slide-background' );
autoplay = el.hasAttribute( 'data-autoplay' ) || !!closest( el, '.slide-background' );
}
if( autoplay && typeof el.play === 'function' ) {
@ -288,7 +288,7 @@ export default class SlideContent {
// Normal iframes
queryAll( element, 'iframe[src]' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
if( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {
return;
}
@ -297,7 +297,7 @@ export default class SlideContent {
// Lazy loading iframes
queryAll( element, 'iframe[data-src]' ).forEach( el => {
if( closestParent( el, '.fragment' ) && !closestParent( el, '.fragment.visible' ) ) {
if( closest( el, '.fragment' ) && !closest( el, '.fragment.visible' ) ) {
return;
}
@ -320,8 +320,8 @@ export default class SlideContent {
*/
startEmbeddedMedia( event ) {
let isAttachedToDOM = !!closestParent( event.target, 'html' ),
isVisible = !!closestParent( event.target, '.present' );
let isAttachedToDOM = !!closest( event.target, 'html' ),
isVisible = !!closest( event.target, '.present' );
if( isAttachedToDOM && isVisible ) {
event.target.currentTime = 0;
@ -344,8 +344,8 @@ export default class SlideContent {
if( iframe && iframe.contentWindow ) {
let isAttachedToDOM = !!closestParent( event.target, 'html' ),
isVisible = !!closestParent( event.target, '.present' );
let isAttachedToDOM = !!closest( event.target, 'html' ),
isVisible = !!closest( event.target, '.present' );
if( isAttachedToDOM && isVisible ) {
@ -355,7 +355,7 @@ export default class SlideContent {
// If no global setting is available, fall back on the element's
// own autoplay setting
if( typeof autoplay !== 'boolean' ) {
autoplay = iframe.hasAttribute( 'data-autoplay' ) || !!closestParent( iframe, '.slide-background' );
autoplay = iframe.hasAttribute( 'data-autoplay' ) || !!closest( iframe, '.slide-background' );
}
// YouTube postMessage API

2
js/reveal.js
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@ -148,7 +148,7 @@ export default function( revealElement, options ) {
// Embedded decks use the reveal element as their viewport
if( config.embedded === true ) {
dom.viewport = revealElement.closest( '.reveal-viewport' ) || revealElement;
dom.viewport = Util.closest( revealElement, '.reveal-viewport' ) || revealElement;
}
// Full-page decks use the body as their viewport
else {

27
js/utils/util.js
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@ -94,14 +94,10 @@ export const transformElement = ( element, transform ) => {
*
* @return {Boolean}
*/
export const matchesSelector = ( target, selector ) => {
export const matches = ( target, selector ) => {
// There's some overhead doing this each time, we don't
// want to rewrite the element prototype but should still
// be enough to feature detect once at startup...
let matchesMethod = parent.matches || parent.matchesSelector || parent.msMatchesSelector;
let matchesMethod = target.matches || target.matchesSelector || target.msMatchesSelector;
// If we find a match, we're all set
return !!( matchesMethod && matchesMethod.call( target, selector ) );
}
@ -117,20 +113,21 @@ export const matchesSelector = ( target, selector ) => {
* @return {HTMLElement} The matched parent or null
* if no matching parent was found
*/
export const closestParent = ( target, selector ) => {
export const closest = ( target, selector ) => {
let parent = target.parentNode;
// Native Element.closest
if( typeof target.closest === 'function' ) {
return target.closest( selector );
}
while( parent ) {
// If we find a match, we're all set
if( matchesSelector( parent, selector ) ) {
return parent;
// Polyfill
while( target ) {
if( matches( target, selector ) ) {
return target;
}
// Keep searching
parent = parent.parentNode;
target = target.parentNode;
}
return null;