only preload last slides if presentation is looped
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12
js/reveal.js
12
js/reveal.js
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@ -2359,7 +2359,7 @@
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viewDistance = isOverview() ? 6 : 2;
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}
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// Limit view distance on weaker devices
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// All slides need to be visible when exporting to PDF
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if( isPrintingPDF() ) {
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viewDistance = Number.MAX_VALUE;
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}
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@ -2370,8 +2370,14 @@
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var verticalSlides = toArray( horizontalSlide.querySelectorAll( 'section' ) ),
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verticalSlidesLength = verticalSlides.length;
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// Loops so that it measures 1 between the first and last slides
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distanceX = Math.abs( ( ( indexh || 0 ) - x ) % ( horizontalSlidesLength - viewDistance ) ) || 0;
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// Determine how far away this slide is from the present
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distanceX = Math.abs( ( indexh || 0 ) - x ) || 0;
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// If the presentation is looped, distance should measure
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// 1 between the first and last slides
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if( config.loop ) {
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distanceX = distanceX % ( horizontalSlidesLength - viewDistance );
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}
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// Show the horizontal slide if it's within the view distance
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if( distanceX < viewDistance ) {
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