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@ -480,7 +480,7 @@ var Reveal = (function(){ |
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var parallaxBackgroundImage = config.parallaxBackgroundImage, |
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parallaxBackgroundSize = config.parallaxBackgroundSize; |
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if (parallaxBackgroundImage) { |
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if( parallaxBackgroundImage ) { |
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dom.wrapper.style.background = parallaxBackgroundImage; |
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dom.wrapper.style.backgroundSize = parallaxBackgroundSize; |
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@ -489,8 +489,8 @@ var Reveal = (function(){ |
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// annoying background slide-in effect when the presentation starts, apply
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// these properties after short time delay
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setTimeout( function() { |
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dom.wrapper.setAttribute('data-parallax-background', parallaxBackgroundImage); |
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dom.wrapper.setAttribute('data-parallax-background-size', parallaxBackgroundSize); |
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dom.wrapper.setAttribute( 'data-parallax-background', parallaxBackgroundImage ); |
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dom.wrapper.setAttribute( 'data-parallax-background-size', parallaxBackgroundSize ); |
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}, 1 ); |
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} |
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@ -1497,25 +1497,26 @@ var Reveal = (function(){ |
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currentSlide = currentVerticalSlides[ indexv ] || currentHorizontalSlide; |
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// Animate parallax background
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if (dom.wrapper.getAttribute('data-parallax-background') || config.parallaxBackgroundImage) { |
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var bs = dom.wrapper.style.backgroundSize.split(' '), |
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if( dom.wrapper.getAttribute( 'data-parallax-background' ) || config.parallaxBackgroundImage ) { |
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var bs = dom.wrapper.style.backgroundSize.split( ' ' ), |
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bgWidth, bgHeight; |
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if (bs.length === 1) { |
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bgWidth = bgHeight = parseInt(bs[0], 10); |
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} else { |
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bgWidth = parseInt(bs[0], 10); |
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bgHeight = parseInt(bs[1], 10); |
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if( bs.length === 1 ) { |
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bgWidth = bgHeight = parseInt( bs[0], 10 ); |
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} |
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else { |
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bgWidth = parseInt( bs[0], 10 ); |
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bgHeight = parseInt( bs[1], 10 ); |
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} |
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var slideWidth = parseInt(dom.wrapper.offsetWidth, 10); |
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var slideWidth = dom.wrapper.offsetWidth; |
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var horizontalSlideCount = horizontalSlides.length; |
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var horizontalOffset = -(bgWidth - slideWidth)/(horizontalSlideCount-1) * h; |
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var horizontalOffset = -( bgWidth - slideWidth ) / ( horizontalSlideCount-1 ) * h; |
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var slideHeight = parseInt(dom.wrapper.offsetHeight, 10); |
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var slideHeight = dom.wrapper.offsetHeight; |
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var verticalSlideCount = currentVerticalSlides.length; |
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var verticalOffset = verticalSlideCount > 0 ? -(bgHeight - slideHeight)/(verticalSlideCount-1) * v : 0; |
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var verticalOffset = verticalSlideCount > 0 ? -( bgHeight - slideHeight ) / ( verticalSlideCount-1 ) * v : 0; |
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dom.wrapper.style.backgroundPosition = horizontalOffset + 'px ' + verticalOffset + 'px'; |
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} |
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