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apply z position to slide container, rather than individual slides

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Hakim El Hattab 2015-01-17 10:33:18 +01:00
parent 66d7b6bfae
commit e0aba9f5ae
3 changed files with 12 additions and 7 deletions
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2
css/reveal.css
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@ -627,7 +627,7 @@ body {
/*********************************************
* OVERVIEW
*********************************************/
.reveal.overview .slides {
.reveal.overview {
-webkit-perspective-origin: 50% 50%;
perspective-origin: 50% 50%;
-webkit-perspective: 700px;

3
css/reveal.scss
View File

@ -743,11 +743,10 @@ body {
* OVERVIEW
*********************************************/
.reveal.overview .slides {
.reveal.overview {
perspective-origin: 50% 50%;
perspective: 700px;
}
.reveal.overview .slides section {
height: 700px;
overflow: hidden;

14
js/reveal.js
View File

@ -165,6 +165,9 @@
// The current scale of the presentation (see width/height config)
scale = 1,
// The current z position of the presentation container
z = 0,
// Cached references to DOM elements
dom = {},
@ -1470,6 +1473,7 @@
// Prefer zooming in desktop Chrome so that content remains crisp
if( !isMobileDevice && /chrome/i.test( navigator.userAgent ) && typeof dom.slides.style.zoom !== 'undefined' ) {
dom.slides.style.zoom = scale;
transformElement( dom.slides, 'translateZ(-'+ z +'px)' );
}
// Apply scale transform as a fallback
else {
@ -1477,7 +1481,7 @@
dom.slides.style.top = '50%';
dom.slides.style.bottom = 'auto';
dom.slides.style.right = 'auto';
transformElement( dom.slides, 'translate(-50%, -50%) scale('+ scale +')' );
transformElement( dom.slides, 'translate(-50%, -50%) scale('+ scale +')' + ' translateZ(-'+ z +'px)' );
}
}
@ -1635,8 +1639,10 @@
var wasActive = dom.wrapper.classList.contains( 'overview' );
// Vary the depth of the overview based on screen size
var depth = window.innerWidth < 400 ? 1000 : 2500;
// Set the depth of the presentation. This determinse how far we
// zoom out and varies based on display size. It gets applied at
// the layout step.
z = window.innerWidth < 400 ? 1000 : 2500;
dom.wrapper.classList.add( 'overview' );
dom.wrapper.classList.remove( 'overview-deactivating' );
@ -1653,7 +1659,7 @@
hbackground = horizontalBackgrounds[i],
hoffset = config.rtl ? -105 : 105;
var htransform = 'translateZ(-'+ depth +'px) translate(' + ( ( i - indexh ) * hoffset ) + '%, 0%)';
var htransform = 'translate(' + ( ( i - indexh ) * hoffset ) + '%, 0%)';
hslide.setAttribute( 'data-index-h', i );