From 646203f038fcddbc15c35e891d3bbd7aa1d8be1f Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Wed, 23 Apr 2014 19:47:30 +0200
Subject: revert from flexbox for pdf centering, use js for PDF setup
---
js/reveal.js | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 69 insertions(+), 6 deletions(-)
(limited to 'js/reveal.js')
diff --git a/js/reveal.js b/js/reveal.js
index 7a032d0..982b951 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -333,6 +333,11 @@ var Reveal = (function(){
// Update all backgrounds
updateBackground( true );
+ // Special setup and config is required when printing to PDF
+ if( isPrintingPDF() ) {
+ setupPDF();
+ }
+
// Notify listeners that the presentation is ready but use a 1ms
// timeout to ensure it's not fired synchronously after #initialize()
setTimeout( function() {
@@ -401,6 +406,66 @@ var Reveal = (function(){
}
+ /**
+ * Configures the presentation for printing to a static
+ * PDF.
+ */
+ function setupPDF() {
+
+ // Dimensions of the content
+ var pageWidth = 1122,
+ pageHeight = 867;
+
+ var slideWidth = 960,
+ slideHeight = 700;
+
+ document.body.classList.add( 'print-pdf' );
+ document.body.style.width = pageWidth + 'px';
+ document.body.style.height = pageHeight + 'px';
+
+ // Slide and slide background layout
+ toArray( document.querySelectorAll( SLIDES_SELECTOR ) ).forEach( function( slide ) {
+
+ // Vertical stacks are not centred since their section
+ // children will be
+ if( slide.classList.contains( 'stack' ) ) {
+ slide.style.top = 0;
+ }
+ else {
+ var left = ( pageWidth - slideWidth ) / 2;
+ var top = ( pageHeight - slideHeight ) / 2;
+
+ if( config.center || slide.classList.contains( 'center' ) ) {
+ top = Math.max( ( pageHeight - getAbsoluteHeight( slide ) ) / 2, 0 );
+ }
+
+ slide.style.left = left + 'px';
+ slide.style.top = top + 'px';
+ slide.style.width = slideWidth + 'px';
+ slide.style.height = slideHeight + 'px';
+
+ if( slide.scrollHeight > slideHeight ) {
+ slide.style.overflow = 'hidden';
+ }
+
+ var background = slide.querySelector( '.slide-background' );
+ if( background ) {
+ background.style.width = pageWidth + 'px';
+ background.style.height = pageHeight + 'px';
+ background.style.top = -top + 'px';
+ background.style.left = -left + 'px';
+ }
+ }
+
+ } );
+
+ // Show all fragments
+ toArray( document.querySelectorAll( SLIDES_SELECTOR + ' .fragment' ) ).forEach( function( fragment ) {
+ fragment.classList.add( 'visible' );
+ } );
+
+ }
+
/**
* Creates an HTML element and returns a reference to it.
* If the element already exists the existing instance will
@@ -428,9 +493,7 @@ var Reveal = (function(){
*/
function createBackgrounds() {
- if( isPrintingPDF() ) {
- document.body.classList.add( 'print-pdf' );
- }
+ var printMode = isPrintingPDF();
// Clear prior backgrounds
dom.background.innerHTML = '';
@@ -441,7 +504,7 @@ var Reveal = (function(){
var backgroundStack;
- if( isPrintingPDF() ) {
+ if( printMode ) {
backgroundStack = createBackground( slideh, slideh );
}
else {
@@ -451,7 +514,7 @@ var Reveal = (function(){
// Iterate over all vertical slides
toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) {
- if( isPrintingPDF() ) {
+ if( printMode ) {
createBackground( slidev, slidev );
}
else {
@@ -887,7 +950,7 @@ var Reveal = (function(){
if( typeof child.offsetTop === 'number' && child.style ) {
// Count # of abs children
- if( child.style.position === 'absolute' ) {
+ if( window.getComputedStyle( child ).position === 'absolute' ) {
absoluteChildren += 1;
}
--
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