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@ -283,15 +283,22 @@ var Reveal = (function(){ |
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slides[index].setAttribute('class', 'present'); |
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// Any element previous to index is given the 'past' class
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slides.slice(0, index).map(function(element){ |
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element.setAttribute('class', 'past'); |
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}); |
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// Any element subsequent to index is given the 'future' class
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slides.slice(index + 1).map(function(element){ |
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element.setAttribute('class', 'future'); |
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}); |
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for( var i = 0; i < slides.length; i++ ) { |
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var slide = slides[i]; |
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// Optimization; hide all slides that are three or more steps
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// away from the present slide
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slide.style.display = Math.abs( index - i ) > 3 ? 'none' : 'block'; |
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if( i < index ) { |
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// Any element previous to index is given the 'past' class
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slide.setAttribute('class', 'past'); |
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} |
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else if( i > index ) { |
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// Any element subsequent to index is given the 'future' class
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slide.setAttribute('class', 'future'); |
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} |
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} |
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} |
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else { |
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// Since there are no slides we can't be anywhere beyond the
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