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simplify logic for finding slide backgrounds

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This commit is contained in:
Hakim El Hattab 2017-11-21 15:29:40 +01:00
parent 28d6a7775b
commit 4022cbfe84
1 changed files with 4 additions and 17 deletions
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13
js/reveal.js
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@ -3869,25 +3869,12 @@
*/
function getSlideBackground( x, y ) {
// When printing to PDF the slide backgrounds are nested
// inside of the slides
if( isPrintingPDF() ) {
var slide = getSlide( x, y );
if( slide ) {
return slide.slideBackgroundElement;
}
return undefined;
}
var horizontalBackground = dom.wrapper.querySelectorAll( '.backgrounds>.slide-background' )[ x ];
var verticalBackgrounds = horizontalBackground && horizontalBackground.querySelectorAll( '.slide-background' );
if( verticalBackgrounds && verticalBackgrounds.length && typeof y === 'number' ) {
return verticalBackgrounds ? verticalBackgrounds[ y ] : undefined;
}
return horizontalBackground;
}