don't overwrite existing classes on slides (closes #23)
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js/reveal.js
15
js/reveal.js
@ -429,8 +429,6 @@ var Reveal = (function(){
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// Enforce max and minimum index bounds
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index = Math.max(Math.min(index, slides.length - 1), 0);
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slides[index].className = 'present';
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for( var i = 0; i < slides.length; i++ ) {
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var slide = slides[i];
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@ -440,20 +438,27 @@ var Reveal = (function(){
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slide.style.display = Math.abs( index - i ) > 3 ? 'none' : 'block';
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}
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slides[i].classList.remove( 'past' );
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slides[i].classList.remove( 'present' );
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slides[i].classList.remove( 'future' );
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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.className = 'past';
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slides[i].classList.add( '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.className = 'future';
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slides[i].classList.add( 'future' );
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}
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// If this element contains vertical slides
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if( slide.querySelector( 'section' ) ) {
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slide.classList.add( 'stack' );
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slides[i].classList.add( 'stack' );
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}
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}
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// Mark the current slide as present
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slides[index].classList.add( 'present' );
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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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