revert from flexbox for pdf centering, use js for PDF setup
This commit is contained in:
Hakim El Hattab
parent
54ca9edeed
commit
646203f038
3 changed files with 86 additions and 49 deletions
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@ -17,8 +17,6 @@
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body {
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font-size: 18pt;
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width: 297mm;
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height: 229mm;
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margin: 0 auto !important;
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border: 0;
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padding: 0;
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@ -105,8 +103,6 @@ ul, ol, div, p {
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overflow: visible;
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display: block;
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text-align: center;
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-webkit-perspective: none;
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-moz-perspective: none;
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-ms-perspective: none;
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@ -118,21 +114,15 @@ ul, ol, div, p {
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perspective-origin: 50% 50%;
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}
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.reveal .slides section {
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page-break-after: always !important;
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visibility: visible !important;
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position: relative !important;
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width: 100% !important;
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height: 229mm !important;
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min-height: 229mm !important;
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display: block !important;
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overflow: hidden !important;
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position: relative !important;
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left: 0 !important;
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top: 0 !important;
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margin: 0 !important;
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padding: 2cm 2cm 0 2cm !important;
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padding: 0 !important;
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box-sizing: border-box !important;
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opacity: 1 !important;
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@ -154,30 +144,6 @@ ul, ol, div, p {
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height: auto !important;
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min-height: auto !important;
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}
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.reveal .absolute-element {
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margin-left: 2.2cm;
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margin-top: 1.8cm;
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}
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.reveal section .fragment {
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opacity: 1 !important;
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visibility: visible !important;
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-webkit-transform: none !important;
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-moz-transform: none !important;
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-ms-transform: none !important;
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transform: none !important;
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}
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.reveal section .slide-background {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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z-index: 0;
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}
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.reveal section>* {
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position: relative;
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z-index: 1;
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}
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.reveal img {
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box-shadow: none;
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}
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@ -189,11 +155,17 @@ ul, ol, div, p {
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font-size: 16pt !important;
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}
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.reveal.center .slides section:not(.stack) {
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display: flex !important;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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padding-top: 2em !important;
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padding-bottom: 2em !important;
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/* Slide backgrounds are placed inside of their slide when exporting to PDF */
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.reveal section .slide-background {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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z-index: 0;
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}
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/* All elements should be above the slide-background */
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.reveal section>* {
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position: relative;
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z-index: 1;
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}
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@ -1328,6 +1328,8 @@ body {
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position: absolute;
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width: 100%;
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height: 100%;
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top: 0;
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left: 0;
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-webkit-perspective: 600px;
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-moz-perspective: 600px;
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75
js/reveal.js
75
js/reveal.js
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@ -333,6 +333,11 @@ var Reveal = (function(){
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// Update all backgrounds
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updateBackground( true );
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// Special setup and config is required when printing to PDF
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if( isPrintingPDF() ) {
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setupPDF();
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}
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// Notify listeners that the presentation is ready but use a 1ms
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// timeout to ensure it's not fired synchronously after #initialize()
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setTimeout( function() {
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@ -401,6 +406,66 @@ var Reveal = (function(){
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}
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/**
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* Configures the presentation for printing to a static
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* PDF.
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*/
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function setupPDF() {
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// Dimensions of the content
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var pageWidth = 1122,
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pageHeight = 867;
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var slideWidth = 960,
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slideHeight = 700;
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document.body.classList.add( 'print-pdf' );
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document.body.style.width = pageWidth + 'px';
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document.body.style.height = pageHeight + 'px';
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// Slide and slide background layout
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toArray( document.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
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// Vertical stacks are not centred since their section
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// children will be
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if( slide.classList.contains( 'stack' ) ) {
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slide.style.top = 0;
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}
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else {
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var left = ( pageWidth - slideWidth ) / 2;
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var top = ( pageHeight - slideHeight ) / 2;
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if( config.center || slide.classList.contains( 'center' ) ) {
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top = Math.max( ( pageHeight - getAbsoluteHeight( slide ) ) / 2, 0 );
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}
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slide.style.left = left + 'px';
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slide.style.top = top + 'px';
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slide.style.width = slideWidth + 'px';
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slide.style.height = slideHeight + 'px';
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if( slide.scrollHeight > slideHeight ) {
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slide.style.overflow = 'hidden';
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}
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var background = slide.querySelector( '.slide-background' );
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if( background ) {
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background.style.width = pageWidth + 'px';
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background.style.height = pageHeight + 'px';
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background.style.top = -top + 'px';
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background.style.left = -left + 'px';
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}
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}
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} );
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// Show all fragments
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toArray( document.querySelectorAll( SLIDES_SELECTOR + ' .fragment' ) ).forEach( function( fragment ) {
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fragment.classList.add( 'visible' );
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} );
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}
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/**
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* Creates an HTML element and returns a reference to it.
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* If the element already exists the existing instance will
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@ -428,9 +493,7 @@ var Reveal = (function(){
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*/
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function createBackgrounds() {
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if( isPrintingPDF() ) {
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document.body.classList.add( 'print-pdf' );
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}
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var printMode = isPrintingPDF();
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// Clear prior backgrounds
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dom.background.innerHTML = '';
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@ -441,7 +504,7 @@ var Reveal = (function(){
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var backgroundStack;
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if( isPrintingPDF() ) {
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if( printMode ) {
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backgroundStack = createBackground( slideh, slideh );
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}
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else {
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@ -451,7 +514,7 @@ var Reveal = (function(){
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// Iterate over all vertical slides
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toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) {
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if( isPrintingPDF() ) {
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if( printMode ) {
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createBackground( slidev, slidev );
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}
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else {
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@ -887,7 +950,7 @@ var Reveal = (function(){
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if( typeof child.offsetTop === 'number' && child.style ) {
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// Count # of abs children
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if( child.style.position === 'absolute' ) {
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if( window.getComputedStyle( child ).position === 'absolute' ) {
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absoluteChildren += 1;
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}
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