diff --git a/js/reveal.js b/js/reveal.js index d3ba03cb..4508addc 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -727,14 +727,39 @@ numberElement.innerHTML = formatSlideNumber( slideNumberH, '.', slideNumberV ); page.appendChild( numberElement ); } + + // Copy page and show fragments one after another + if ( isPrintingPDFFragments() ) { + + var numberOfFragments = toArray( page.querySelectorAll( '.fragment' ) ).length; + + for ( var currentFragment = 0; currentFragment < numberOfFragments; currentFragment++ ) { + var clonedPage = page.cloneNode( true ); + page.parentNode.insertBefore( clonedPage, page.nextSibling ); + + toArray( sortFragments( clonedPage.querySelectorAll( '.fragment' ))).forEach( function ( fragment, fragmentIndex ) { + if ( fragmentIndex <= currentFragment ) { + fragment.classList.add( 'visible' ); + } else { + fragment.classList.remove( 'visible' ); + } + } ); + + page = clonedPage; + } + + } + // Show all fragments + else { + toArray( page.querySelectorAll( '.fragment' ) ).forEach( function( fragment ) { + fragment.classList.add( 'visible' ); + } ); + } + } } ); - // Show all fragments - toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR + ' .fragment' ) ).forEach( function( fragment ) { - fragment.classList.add( 'visible' ); - } ); // Notify subscribers that the PDF layout is good to go dispatchEvent( 'pdf-ready' ); @@ -1497,6 +1522,15 @@ } + /** + * Check if this instance is being used to print a PDF with fragments. + */ + function isPrintingPDFFragments() { + + return ( /print-pdf-fragments/gi ).test( window.location.search ); + + } + /** * Hides the address bar if we're on a mobile device. */