fix issue with deck-wide backgroudns in pdf exports + fix #2865
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@ -46,14 +46,19 @@ export default class Print {
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document.body.style.width = pageWidth + 'px';
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document.body.style.height = pageHeight + 'px';
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const viewportElement = document.querySelector( '.reveal-viewport' );
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let presentationBackground;
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if( viewportElement ) {
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const viewportStyles = window.getComputedStyle( viewportElement );
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if( viewportStyles && viewportStyles.background ) {
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presentationBackground = viewportStyles.background;
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}
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}
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// Make sure stretch elements fit on slide
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await new Promise( requestAnimationFrame );
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this.Reveal.layoutSlideContents( slideWidth, slideHeight );
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// Re-run the slide layout so that r-fit-text is applied based on
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// the printed slide size
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slides.forEach( slide => this.Reveal.slideContent.layout( slide ) );
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// Batch scrollHeight access to prevent layout thrashing
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await new Promise( requestAnimationFrame );
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@ -90,6 +95,13 @@ export default class Print {
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page.className = 'pdf-page';
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page.style.height = ( ( pageHeight + config.pdfPageHeightOffset ) * numberOfPages ) + 'px';
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// Copy the presentation-wide background to each individual
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// page when printing
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if( presentationBackground ) {
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page.style.background = presentationBackground;
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}
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page.appendChild( slide );
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// Position the slide inside of the page
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@ -97,6 +109,10 @@ export default class Print {
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slide.style.top = top + 'px';
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slide.style.width = slideWidth + 'px';
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// Re-run the slide layout so that r-fit-text is applied based on
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// the printed slide size
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this.Reveal.slideContent.layout( slide )
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if( slide.slideBackgroundElement ) {
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page.insertBefore( slide.slideBackgroundElement, slide );
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}
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