diff options
Diffstat (limited to 'js/reveal.js')
| -rw-r--r-- | js/reveal.js | 108 |
1 files changed, 58 insertions, 50 deletions
diff --git a/js/reveal.js b/js/reveal.js index 626ce7a..e0a475b 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -84,6 +84,10 @@ // Enable the slide overview mode overview: true, + // Enable/disable user specified layouts (like css-grid) + // (basically prevents all the display & height/width calculations) + disableLayout: false, + // Vertical centering of slides center: true, @@ -1853,76 +1857,80 @@ if( dom.wrapper && !isPrintingPDF() ) { - var size = getComputedSlideSize(); + if( !config.disableLayout ) { - // Layout the contents of the slides - layoutSlideContents( config.width, config.height ); + var size = getComputedSlideSize(); - dom.slides.style.width = size.width + 'px'; - dom.slides.style.height = size.height + 'px'; + // Layout the contents of the slides + layoutSlideContents( config.width, config.height ); - // Determine scale of content to fit within available space - scale = Math.min( size.presentationWidth / size.width, size.presentationHeight / size.height ); + dom.slides.style.width = size.width + 'px'; + dom.slides.style.height = size.height + 'px'; - // Respect max/min scale settings - scale = Math.max( scale, config.minScale ); - scale = Math.min( scale, config.maxScale ); + // Determine scale of content to fit within available space + scale = Math.min( size.presentationWidth / size.width, size.presentationHeight / size.height ); - // Don't apply any scaling styles if scale is 1 - if( scale === 1 ) { - dom.slides.style.zoom = ''; - dom.slides.style.left = ''; - dom.slides.style.top = ''; - dom.slides.style.bottom = ''; - dom.slides.style.right = ''; - transformSlides( { layout: '' } ); - } - else { - // Prefer zoom for scaling up so that content remains crisp. - // Don't use zoom to scale down since that can lead to shifts - // in text layout/line breaks. - if( scale > 1 && features.zoom ) { - dom.slides.style.zoom = scale; + // Respect max/min scale settings + scale = Math.max( scale, config.minScale ); + scale = Math.min( scale, config.maxScale ); + + // Don't apply any scaling styles if scale is 1 + if( scale === 1 ) { + dom.slides.style.zoom = ''; dom.slides.style.left = ''; dom.slides.style.top = ''; dom.slides.style.bottom = ''; dom.slides.style.right = ''; transformSlides( { layout: '' } ); } - // Apply scale transform as a fallback else { - dom.slides.style.zoom = ''; - dom.slides.style.left = '50%'; - dom.slides.style.top = '50%'; - dom.slides.style.bottom = 'auto'; - dom.slides.style.right = 'auto'; - transformSlides( { layout: 'translate(-50%, -50%) scale('+ scale +')' } ); + // Prefer zoom for scaling up so that content remains crisp. + // Don't use zoom to scale down since that can lead to shifts + // in text layout/line breaks. + if( scale > 1 && features.zoom ) { + dom.slides.style.zoom = scale; + dom.slides.style.left = ''; + dom.slides.style.top = ''; + dom.slides.style.bottom = ''; + dom.slides.style.right = ''; + transformSlides( { layout: '' } ); + } + // Apply scale transform as a fallback + else { + dom.slides.style.zoom = ''; + dom.slides.style.left = '50%'; + dom.slides.style.top = '50%'; + dom.slides.style.bottom = 'auto'; + dom.slides.style.right = 'auto'; + transformSlides( { layout: 'translate(-50%, -50%) scale('+ scale +')' } ); + } } - } - // Select all slides, vertical and horizontal - var slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ); + // Select all slides, vertical and horizontal + var slides = toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ); - for( var i = 0, len = slides.length; i < len; i++ ) { - var slide = slides[ i ]; + for( var i = 0, len = slides.length; i < len; i++ ) { + var slide = slides[ i ]; - // Don't bother updating invisible slides - if( slide.style.display === 'none' ) { - continue; - } + // Don't bother updating invisible slides + if( slide.style.display === 'none' ) { + continue; + } - if( config.center || slide.classList.contains( 'center' ) ) { - // Vertical stacks are not centred since their section - // children will be - if( slide.classList.contains( 'stack' ) ) { - slide.style.top = 0; + if( config.center || slide.classList.contains( 'center' ) ) { + // Vertical stacks are not centred since their section + // children will be + if( slide.classList.contains( 'stack' ) ) { + slide.style.top = 0; + } + else { + slide.style.top = Math.max( ( size.height - slide.scrollHeight ) / 2, 0 ) + 'px'; + } } else { - slide.style.top = Math.max( ( size.height - slide.scrollHeight ) / 2, 0 ) + 'px'; + slide.style.top = ''; } - } - else { - slide.style.top = ''; + } } |