add util method for applying css transforms
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49
js/reveal.js
49
js/reveal.js
@ -664,6 +664,19 @@ var Reveal = (function(){
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}
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/**
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* Applies a CSS transform to the target element.
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*/
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function transformElement( element, transform ) {
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element.style.WebkitTransform = transform;
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element.style.MozTransform = transform;
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element.style.msTransform = transform;
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element.style.OTransform = transform;
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element.style.transform = transform;
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}
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/**
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* Retrieves the height of the given element by looking
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* at the position and height of its immediate children.
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@ -949,13 +962,7 @@ var Reveal = (function(){
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}
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// Apply scale transform as a fallback
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else {
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var transform = 'translate(-50%, -50%) scale('+ scale +') translate(50%, 50%)';
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dom.slides.style.WebkitTransform = transform;
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dom.slides.style.MozTransform = transform;
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dom.slides.style.msTransform = transform;
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dom.slides.style.OTransform = transform;
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dom.slides.style.transform = transform;
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transformElement( dom.slides, 'translate(-50%, -50%) scale('+ scale +') translate(50%, 50%)' );
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}
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// Select all slides, vertical and horizontal
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@ -1062,15 +1069,12 @@ var Reveal = (function(){
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for( var i = 0, len1 = horizontalSlides.length; i < len1; i++ ) {
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var hslide = horizontalSlides[i],
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hoffset = config.rtl ? -105 : 105,
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htransform = 'translateZ(-'+ depth +'px) translate(' + ( ( i - indexh ) * hoffset ) + '%, 0%)';
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hoffset = config.rtl ? -105 : 105;
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hslide.setAttribute( 'data-index-h', i );
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hslide.style.WebkitTransform = htransform;
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hslide.style.MozTransform = htransform;
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hslide.style.msTransform = htransform;
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hslide.style.OTransform = htransform;
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hslide.style.transform = htransform;
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// Apply CSS transform
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transformElement( hslide, 'translateZ(-'+ depth +'px) translate(' + ( ( i - indexh ) * hoffset ) + '%, 0%)' );
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if( hslide.classList.contains( 'stack' ) ) {
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@ -1079,16 +1083,13 @@ var Reveal = (function(){
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for( var j = 0, len2 = verticalSlides.length; j < len2; j++ ) {
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var verticalIndex = i === indexh ? indexv : getPreviousVerticalIndex( hslide );
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var vslide = verticalSlides[j],
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vtransform = 'translate(0%, ' + ( ( j - verticalIndex ) * 105 ) + '%)';
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var vslide = verticalSlides[j];
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vslide.setAttribute( 'data-index-h', i );
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vslide.setAttribute( 'data-index-v', j );
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vslide.style.WebkitTransform = vtransform;
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vslide.style.MozTransform = vtransform;
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vslide.style.msTransform = vtransform;
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vslide.style.OTransform = vtransform;
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vslide.style.transform = vtransform;
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// Apply CSS transform
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transformElement( vslide, 'translate(0%, ' + ( ( j - verticalIndex ) * 105 ) + '%)' );
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// Navigate to this slide on click
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vslide.addEventListener( 'click', onOverviewSlideClicked, true );
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@ -1154,11 +1155,7 @@ var Reveal = (function(){
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element.style.display = '';
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// Resets all transforms to use the external styles
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element.style.WebkitTransform = '';
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element.style.MozTransform = '';
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element.style.msTransform = '';
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element.style.OTransform = '';
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element.style.transform = '';
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transformElement( element, '' );
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element.removeEventListener( 'click', onOverviewSlideClicked, true );
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}
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4
js/reveal.min.js
vendored
4
js/reveal.min.js
vendored
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