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es6 refactoring

master
Hakim El Hattab 2020-03-07 11:58:18 +01:00
parent 4cfd254086
commit dd852851ef
2 changed files with 55 additions and 55 deletions
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106
js/reveal.js
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@ -204,7 +204,7 @@ export default function( revealElement, options ) {
*/
function load() {
var scripts = [],
let scripts = [],
scriptsToLoad = 0;
config.dependencies.forEach( s => {
@ -224,7 +224,7 @@ export default function( revealElement, options ) {
// Load synchronous scripts
scripts.forEach( s => {
loadScript( s.src, function() {
loadScript( s.src, () => {
if( typeof s.callback === 'function' ) s.callback();
@ -541,14 +541,14 @@ export default function( revealElement, options ) {
*/
function setupPDF() {
var slideSize = getComputedSlideSize( window.innerWidth, window.innerHeight );
let slideSize = getComputedSlideSize( window.innerWidth, window.innerHeight );
// Dimensions of the PDF pages
var pageWidth = Math.floor( slideSize.width * ( 1 + config.margin ) ),
let pageWidth = Math.floor( slideSize.width * ( 1 + config.margin ) ),
pageHeight = Math.floor( slideSize.height * ( 1 + config.margin ) );
// Dimensions of slides within the pages
var slideWidth = slideSize.width,
let slideWidth = slideSize.width,
slideHeight = slideSize.height;
// Let the browser know what page size we want to print
@ -565,7 +565,7 @@ export default function( revealElement, options ) {
layoutSlideContents( slideWidth, slideHeight );
// Compute slide numbers now, before we start duplicating slides
var doingSlideNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber );
let doingSlideNumbers = config.slideNumber && /all|print/i.test( config.showSlideNumber );
toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
slide.setAttribute( 'data-slide-number', getSlideNumber( slide ) );
} );
@ -577,11 +577,11 @@ export default function( revealElement, options ) {
// children will be
if( slide.classList.contains( 'stack' ) === false ) {
// Center the slide inside of the page, giving the slide some margin
var left = ( pageWidth - slideWidth ) / 2,
let left = ( pageWidth - slideWidth ) / 2,
top = ( pageHeight - slideHeight ) / 2;
var contentHeight = slide.scrollHeight;
var numberOfPages = Math.max( Math.ceil( contentHeight / pageHeight ), 1 );
let contentHeight = slide.scrollHeight;
let numberOfPages = Math.max( Math.ceil( contentHeight / pageHeight ), 1 );
// Adhere to configured pages per slide limit
numberOfPages = Math.min( numberOfPages, config.pdfMaxPagesPerSlide );
@ -593,7 +593,7 @@ export default function( revealElement, options ) {
// Wrap the slide in a page element and hide its overflow
// so that no page ever flows onto another
var page = document.createElement( 'div' );
let page = document.createElement( 'div' );
page.className = 'pdf-page';
page.style.height = ( ( pageHeight + config.pdfPageHeightOffset ) * numberOfPages ) + 'px';
slide.parentNode.insertBefore( page, slide );
@ -612,12 +612,12 @@ export default function( revealElement, options ) {
if( config.showNotes ) {
// Are there notes for this slide?
var notes = getSlideNotes( slide );
let notes = getSlideNotes( slide );
if( notes ) {
var notesSpacing = 8;
var notesLayout = typeof config.showNotes === 'string' ? config.showNotes : 'inline';
var notesElement = document.createElement( 'div' );
let notesSpacing = 8;
let notesLayout = typeof config.showNotes === 'string' ? config.showNotes : 'inline';
let notesElement = document.createElement( 'div' );
notesElement.classList.add( 'speaker-notes' );
notesElement.classList.add( 'speaker-notes-pdf' );
notesElement.setAttribute( 'data-layout', notesLayout );
@ -639,7 +639,7 @@ export default function( revealElement, options ) {
// Inject slide numbers if `slideNumbers` are enabled
if( doingSlideNumbers ) {
var numberElement = document.createElement( 'div' );
let numberElement = document.createElement( 'div' );
numberElement.classList.add( 'slide-number' );
numberElement.classList.add( 'slide-number-pdf' );
numberElement.innerHTML = slide.getAttribute( 'data-slide-number' );
@ -652,10 +652,10 @@ export default function( revealElement, options ) {
// Each fragment 'group' is an array containing one or more
// fragments. Multiple fragments that appear at the same time
// are part of the same group.
var fragmentGroups = sortFragments( page.querySelectorAll( '.fragment' ), true );
let fragmentGroups = sortFragments( page.querySelectorAll( '.fragment' ), true );
var previousFragmentStep;
var previousPage;
let previousFragmentStep;
let previousPage;
fragmentGroups.forEach( function( fragments ) {
@ -672,7 +672,7 @@ export default function( revealElement, options ) {
} );
// Create a separate page for the current fragment state
var clonedPage = page.cloneNode( true );
let clonedPage = page.cloneNode( true );
page.parentNode.insertBefore( clonedPage, ( previousPage || page ).nextSibling );
previousFragmentStep = fragments;
@ -983,7 +983,7 @@ export default function( revealElement, options ) {
if( POST_MESSAGE_METHOD_BLACKLIST.test( data.method ) === false ) {
var result = Reveal[data.method].apply( Reveal, data.args );
const result = Reveal[data.method].apply( Reveal, data.args );
// Dispatch a postMessage event with the returned value from
// our method invocation for getter functions
@ -1095,7 +1095,7 @@ export default function( revealElement, options ) {
}
// Reset all auto animated elements
toArray( dom.slides.querySelectorAll( '[data-auto-animate]:not([data-auto-animate=""])' ) ).forEach( function( element ) {
toArray( dom.slides.querySelectorAll( '[data-auto-animate]:not([data-auto-animate=""])' ) ).forEach( element => {
element.dataset.autoAnimate = '';
} );
@ -1231,13 +1231,13 @@ export default function( revealElement, options ) {
pointerEvents = [ 'touchstart' ];
}
pointerEvents.forEach( function( eventName ) {
dom.controlsLeft.forEach( function( el ) { el.addEventListener( eventName, onNavigateLeftClicked, false ); } );
dom.controlsRight.forEach( function( el ) { el.addEventListener( eventName, onNavigateRightClicked, false ); } );
dom.controlsUp.forEach( function( el ) { el.addEventListener( eventName, onNavigateUpClicked, false ); } );
dom.controlsDown.forEach( function( el ) { el.addEventListener( eventName, onNavigateDownClicked, false ); } );
dom.controlsPrev.forEach( function( el ) { el.addEventListener( eventName, onNavigatePrevClicked, false ); } );
dom.controlsNext.forEach( function( el ) { el.addEventListener( eventName, onNavigateNextClicked, false ); } );
pointerEvents.forEach( eventName => {
dom.controlsLeft.forEach( el => el.addEventListener( eventName, onNavigateLeftClicked, false ) );
dom.controlsRight.forEach( el => el.addEventListener( eventName, onNavigateRightClicked, false ) );
dom.controlsUp.forEach( el => el.addEventListener( eventName, onNavigateUpClicked, false ) );
dom.controlsDown.forEach( el => el.addEventListener( eventName, onNavigateDownClicked, false ) );
dom.controlsPrev.forEach( el => el.addEventListener( eventName, onNavigatePrevClicked, false ) );
dom.controlsNext.forEach( el => el.addEventListener( eventName, onNavigateNextClicked, false ) );
} );
}
@ -1272,13 +1272,13 @@ export default function( revealElement, options ) {
dom.progress.removeEventListener( 'click', onProgressClicked, false );
}
[ 'touchstart', 'click' ].forEach( function( eventName ) {
dom.controlsLeft.forEach( function( el ) { el.removeEventListener( eventName, onNavigateLeftClicked, false ); } );
dom.controlsRight.forEach( function( el ) { el.removeEventListener( eventName, onNavigateRightClicked, false ); } );
dom.controlsUp.forEach( function( el ) { el.removeEventListener( eventName, onNavigateUpClicked, false ); } );
dom.controlsDown.forEach( function( el ) { el.removeEventListener( eventName, onNavigateDownClicked, false ); } );
dom.controlsPrev.forEach( function( el ) { el.removeEventListener( eventName, onNavigatePrevClicked, false ); } );
dom.controlsNext.forEach( function( el ) { el.removeEventListener( eventName, onNavigateNextClicked, false ); } );
[ 'touchstart', 'click' ].forEach( eventName => {
dom.controlsLeft.forEach( el => el.removeEventListener( eventName, onNavigateLeftClicked, false ) );
dom.controlsRight.forEach( el => el.removeEventListener( eventName, onNavigateRightClicked, false ) );
dom.controlsUp.forEach( el => el.removeEventListener( eventName, onNavigateUpClicked, false ) );
dom.controlsDown.forEach( el => el.removeEventListener( eventName, onNavigateDownClicked, false ) );
dom.controlsPrev.forEach( el => el.removeEventListener( eventName, onNavigatePrevClicked, false ) );
dom.controlsNext.forEach( el => el.removeEventListener( eventName, onNavigateNextClicked, false ) );
} );
}
@ -1576,12 +1576,12 @@ export default function( revealElement, options ) {
let html = '<p class="title">Keyboard Shortcuts</p><br/>';
html += '<table><th>KEY</th><th>ACTION</th>';
for( var key in keyboardShortcuts ) {
for( let key in keyboardShortcuts ) {
html += `<tr><td>${key}</td><td>${keyboardShortcuts[ key ]}</td></tr>`;
}
// Add custom key bindings that have associated descriptions
for( var binding in registeredKeyBindings ) {
for( let binding in registeredKeyBindings ) {
if( registeredKeyBindings[binding].key && registeredKeyBindings[binding].description ) {
html += `<tr><td>${registeredKeyBindings[binding].key}</td><td>${registeredKeyBindings[binding].description}</td></tr>`;
}
@ -1598,7 +1598,7 @@ export default function( revealElement, options ) {
</div>
`;
dom.overlay.querySelector( '.close' ).addEventListener( 'click', function( event ) {
dom.overlay.querySelector( '.close' ).addEventListener( 'click', event => {
closeOverlay();
event.preventDefault();
}, false );
@ -1696,7 +1696,7 @@ export default function( revealElement, options ) {
// Select all slides, vertical and horizontal
const slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) );
for( var i = 0, len = slides.length; i < len; i++ ) {
for( let i = 0, len = slides.length; i < len; i++ ) {
const slide = slides[ i ];
// Don't bother updating invisible slides
@ -1753,7 +1753,7 @@ export default function( revealElement, options ) {
toArray( dom.slides.querySelectorAll( 'section > .stretch' ) ).forEach( element => {
// Determine how much vertical space we can use
var remainingHeight = getRemainingHeight( element, height );
let remainingHeight = getRemainingHeight( element, height );
// Consider the aspect ratio of media elements
if( /(img|video)/gi.test( element.nodeName ) ) {
@ -2475,7 +2475,7 @@ export default function( revealElement, options ) {
*/
function resetVerticalSlides() {
getHorizontalSlides().forEach( function( horizontalSlide ) {
getHorizontalSlides().forEach( horizontalSlide => {
toArray( horizontalSlide.querySelectorAll( 'section' ) ).forEach( ( verticalSlide, y ) => {
@ -3149,13 +3149,13 @@ export default function( revealElement, options ) {
toSlide.dataset.autoAnimate = 'pending';
// Inject our auto-animate styles for this transition
let css = getAutoAnimatableElements( fromSlide, toSlide ).map( function( elements ) {
let css = getAutoAnimatableElements( fromSlide, toSlide ).map( elements => {
return getAutoAnimateCSS( elements.from, elements.to, elements.options || {}, animationOptions, autoAnimateCounter++ );
} );
// Animate unmatched elements, if enabled
if( toSlide.dataset.autoAnimateUnmatched !== 'false' && config.autoAnimateUnmatched === true ) {
getUnmatchedAutoAnimateElements( toSlide ).forEach( function( unmatchedElement ) {
getUnmatchedAutoAnimateElements( toSlide ).forEach( unmatchedElement => {
unmatchedElement.dataset.autoAnimateTarget = 'unmatched';
} );
@ -3305,11 +3305,11 @@ export default function( revealElement, options ) {
// Build up our custom CSS. We need to override inline styles
// so we need to make our styles vErY IMPORTANT!1!!
let fromCSS = Object.keys( fromProps.styles ).map( function( propertyName ) {
let fromCSS = Object.keys( fromProps.styles ).map( propertyName => {
return propertyName + ': ' + fromProps.styles[propertyName] + ' !important;';
} ).join( '' );
let toCSS = Object.keys( toProps.styles ).map( function( propertyName ) {
let toCSS = Object.keys( toProps.styles ).map( propertyName => {
return propertyName + ': ' + toProps.styles[propertyName] + ' !important;';
} ).join( '' );
@ -3686,7 +3686,7 @@ export default function( revealElement, options ) {
// Media elements with <source> children
toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( media => {
var sources = 0;
let sources = 0;
toArray( media.querySelectorAll( 'source[data-src]' ) ).forEach( source => {
source.setAttribute( 'src', source.getAttribute( 'data-src' ) );
@ -3831,7 +3831,7 @@ export default function( revealElement, options ) {
*/
function availableRoutes() {
var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
let horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ),
verticalSlides = dom.wrapper.querySelectorAll( VERTICAL_SLIDES_SELECTOR );
let routes = {
@ -3896,7 +3896,7 @@ export default function( revealElement, options ) {
let _appendParamToIframeSource = ( sourceAttribute, sourceURL, param ) => {
toArray( dom.slides.querySelectorAll( 'iframe['+ sourceAttribute +'*="'+ sourceURL +'"]' ) ).forEach( el => {
var src = el.getAttribute( sourceAttribute );
let src = el.getAttribute( sourceAttribute );
if( src && src.indexOf( param ) === -1 ) {
el.setAttribute( sourceAttribute, src + ( !/\?/.test( src ) ? '?' : '&' ) + param );
}
@ -3959,7 +3959,7 @@ export default function( revealElement, options ) {
// If autoplay does not work, ensure that the controls are visible so
// that the viewer can start the media on their own
if( promise && typeof promise.catch === 'function' && el.controls === false ) {
promise.catch( function() {
promise.catch( () => {
el.controls = true;
// Once the video does start playing, hide the controls again
@ -4435,7 +4435,7 @@ export default function( revealElement, options ) {
*/
function getSlidesAttributes() {
return getSlides().map( function( slide ) {
return getSlides().map( slide => {
let attributes = {};
for( let i = 0; i < slide.attributes.length; i++ ) {
@ -4557,7 +4557,7 @@ export default function( revealElement, options ) {
if( typeof state === 'object' ) {
slide( deserialize( state.indexh ), deserialize( state.indexv ), deserialize( state.indexf ) );
var pausedFlag = deserialize( state.paused ),
let pausedFlag = deserialize( state.paused ),
overviewFlag = deserialize( state.overview );
if( typeof pausedFlag === 'boolean' && pausedFlag !== isPaused() ) {
@ -5167,7 +5167,7 @@ export default function( revealElement, options ) {
// Check if this binding matches the pressed key
if( parseInt( key, 10 ) === keyCode ) {
var value = config.keyboard[ key ];
let value = config.keyboard[ key ];
// Callback function
if( typeof value === 'function' ) {
@ -5613,7 +5613,7 @@ export default function( revealElement, options ) {
deactivateOverview();
if( element.nodeName.match( /section/gi ) ) {
var h = parseInt( element.getAttribute( 'data-index-h' ), 10 ),
let h = parseInt( element.getAttribute( 'data-index-h' ), 10 ),
v = parseInt( element.getAttribute( 'data-index-v' ), 10 );
slide( h, v );

4
js/utils/util.js
View File

@ -7,7 +7,7 @@
*/
export const extend = ( a, b ) => {
for( var i in b ) {
for( let i in b ) {
a[ i ] = b[ i ];
}
@ -57,7 +57,7 @@ export const deserialize = ( value ) => {
*/
export const distanceBetween = ( a, b ) => {
var dx = a.x - b.x,
let dx = a.x - b.x,
dy = a.y - b.y;
return Math.sqrt( dx*dx + dy*dy );