From ddfb0aa86fdfc8e92d0b81fbe36dc79c4585dd86 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Sat, 26 Apr 2014 21:41:54 +0200
Subject: [PATCH] abide by configured width/height when printing to pdf
---
css/print/pdf.css | 5 -----
js/reveal.js | 27 +++++++++++++++++++++------
2 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/css/print/pdf.css b/css/print/pdf.css
index 559b05d..bc09a70 100644
--- a/css/print/pdf.css
+++ b/css/print/pdf.css
@@ -30,11 +30,6 @@ html {
overflow: visible;
}
-@page {
- size: letter landscape;
- margin: 0;
-}
-
/* SECTION 2: Remove any elements not needed in print.
This would include navigation, ads, sidebars, etc. */
.nestedarrow,
diff --git a/js/reveal.js b/js/reveal.js
index a203418..5dc6856 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -413,21 +413,19 @@ var Reveal = (function(){
*/
function setupPDF() {
- // The aspect ratio of pages when saving to PDF in Chrome,
- // we need to abide by this ratio when determining the pixel
- // size of our pages
- var pageAspectRatio = 1.295;
-
var slideSize = getComputedSlideSize( window.innerWidth, window.innerHeight );
// Dimensions of the PDF pages
var pageWidth = Math.round( slideSize.width * ( 1 + config.margin ) ),
- pageHeight = Math.round( pageWidth / pageAspectRatio );
+ pageHeight = Math.round( slideSize.height * ( 1 + config.margin ) );
// Dimensions of slides within the pages
var slideWidth = slideSize.width,
slideHeight = slideSize.height;
+ // Let the browser know what page size we want to print
+ injectStyleSheet( '@page{size:'+ pageWidth +'px '+ pageHeight +'px; margin: 0;}' );
+
document.body.classList.add( 'print-pdf' );
document.body.style.width = pageWidth + 'px';
document.body.style.height = pageHeight + 'px';
@@ -944,6 +942,23 @@ var Reveal = (function(){
}
+ /**
+ * Injects the given CSS styles into the DOM.
+ */
+ function injectStyleSheet( value ) {
+
+ var tag = document.createElement( 'style' );
+ tag.type = 'text/css';
+ if( tag.styleSheet ) {
+ tag.styleSheet.cssText = value;
+ }
+ else {
+ tag.appendChild( document.createTextNode( value ) );
+ }
+ document.getElementsByTagName( 'head' )[0].appendChild( tag );
+
+ }
+
/**
* Retrieves the height of the given element by looking
* at the position and height of its immediate children.
--
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