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don't overwrite existing classes on slides (closes #23)

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This commit is contained in:
Hakim El Hattab 2012-03-24 12:27:25 -04:00
parent cd66a6574d
commit b72bee3219
1 changed files with 10 additions and 5 deletions
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15
js/reveal.js
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@ -429,8 +429,6 @@ var Reveal = (function(){
// Enforce max and minimum index bounds // Enforce max and minimum index bounds
index = Math.max(Math.min(index, slides.length - 1), 0); index = Math.max(Math.min(index, slides.length - 1), 0);
slides[index].className = 'present';
for( var i = 0; i < slides.length; i++ ) { for( var i = 0; i < slides.length; i++ ) {
var slide = slides[i]; var slide = slides[i];
@ -440,20 +438,27 @@ var Reveal = (function(){
slide.style.display = Math.abs( index - i ) > 3 ? 'none' : 'block'; slide.style.display = Math.abs( index - i ) > 3 ? 'none' : 'block';
} }
slides[i].classList.remove( 'past' );
slides[i].classList.remove( 'present' );
slides[i].classList.remove( 'future' );
if( i < index ) { if( i < index ) {
// Any element previous to index is given the 'past' class // Any element previous to index is given the 'past' class
slide.className = 'past'; slides[i].classList.add( 'past' );
} }
else if( i > index ) { else if( i > index ) {
// Any element subsequent to index is given the 'future' class // Any element subsequent to index is given the 'future' class
slide.className = 'future'; slides[i].classList.add( 'future' );
} }
// If this element contains vertical slides // If this element contains vertical slides
if( slide.querySelector( 'section' ) ) { if( slide.querySelector( 'section' ) ) {
slide.classList.add( 'stack' ); slides[i].classList.add( 'stack' );
} }
} }
// Mark the current slide as present
slides[index].classList.add( 'present' );
} }
else { else {
// Since there are no slides we can't be anywhere beyond the // Since there are no slides we can't be anywhere beyond the