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Code Issues Releases Wiki Activity

foundation for reader mode, activate via 'mode=reader/print' config param

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This commit is contained in:
Hakim El Hattab
2023-09-12 17:00:56 +02:00
parent 487cc860f8
commit 6aa1eae796
5 changed files with 224 additions and 32 deletions
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4
js/controllers/notes.js
View File

@@ -38,7 +38,7 @@ export default class Notes {
*/
update() {
if( this.Reveal.getConfig().showNotes && this.element && this.Reveal.getCurrentSlide() && !this.Reveal.print.isPrintingPDF() ) {
if( this.Reveal.getConfig().showNotes && this.element && this.Reveal.getCurrentSlide() && !this.Reveal.reader.isActive() ) {
this.element.innerHTML = this.getSlideNotes() || '<span class="notes-placeholder">No notes on this slide.</span>';
@@ -54,7 +54,7 @@ export default class Notes {
*/
updateVisibility() {
if( this.Reveal.getConfig().showNotes && this.hasNotes() && !this.Reveal.print.isPrintingPDF() ) {
if( this.Reveal.getConfig().showNotes && this.hasNotes() && !this.Reveal.reader.isActive() ) {
this.Reveal.getRevealElement().classList.add( 'show-notes' );
}
else {

72
js/controllers/print.js → js/controllers/reader.js
View File

@@ -4,7 +4,7 @@ import { queryAll, createStyleSheet } from '../utils/util.js'
/**
* Setups up our presentation for printing/exporting to PDF.
*/
export default class Print {
export default class Reader {
constructor( Reveal ) {
@@ -13,10 +13,11 @@ export default class Print {
}
/**
* Configures the presentation for printing to a static
* PDF.
* Configures the presentation for printing to a static.
*/
async setupPDF() {
async setup() {
const printing = this.isPrintMode();
const config = this.Reveal.getConfig();
const slides = queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR )
@@ -28,11 +29,11 @@ export default class Print {
// Dimensions of the PDF pages
const pageWidth = Math.floor( slideSize.width * ( 1 + config.margin ) ),
pageHeight = Math.floor( slideSize.height * ( 1 + config.margin ) );
pageHeight = Math.floor( slideSize.height * ( 1 + config.margin ) );
// Dimensions of slides within the pages
const slideWidth = slideSize.width,
slideHeight = slideSize.height;
slideHeight = slideSize.height;
await new Promise( requestAnimationFrame );
@@ -42,9 +43,14 @@ export default class Print {
// Limit the size of certain elements to the dimensions of the slide
createStyleSheet( '.reveal section>img, .reveal section>video, .reveal section>iframe{max-width: '+ slideWidth +'px; max-height:'+ slideHeight +'px}' );
document.documentElement.classList.add( 'print-pdf' );
document.body.style.width = pageWidth + 'px';
document.body.style.height = pageHeight + 'px';
if( printing ) {
document.documentElement.classList.add( 'reveal-print', 'print-pdf' );
document.body.style.width = pageWidth + 'px';
document.body.style.height = pageHeight + 'px';
}
else {
document.documentElement.classList.add( 'reveal-reader' );
}
const viewportElement = document.querySelector( '.reveal-viewport' );
let presentationBackground;
@@ -94,7 +100,7 @@ export default class Print {
const page = document.createElement( 'div' );
pages.push( page );
page.className = 'pdf-page';
page.className = printing ? 'pdf-page' : 'reader-page';
page.style.height = ( ( pageHeight + config.pdfPageHeightOffset ) * numberOfPages ) + 'px';
// Copy the presentation-wide background to each individual
@@ -106,8 +112,11 @@ export default class Print {
page.appendChild( slide );
// Position the slide inside of the page
slide.style.left = left + 'px';
slide.style.top = top + 'px';
if( printing ) {
slide.style.left = left + 'px';
slide.style.top = top + 'px';
}
slide.style.width = slideWidth + 'px';
this.Reveal.slideContent.layout( slide );
@@ -213,6 +222,9 @@ export default class Print {
}, this );
// Remove leftover stacks
queryAll( pageContainer, '.reveal .stack' ).forEach( stack => stack.remove() );
await new Promise( requestAnimationFrame );
pages.forEach( page => pageContainer.appendChild( page ) );
@@ -220,17 +232,43 @@ export default class Print {
// Re-run JS-based content layout after the slide is added to page DOM
this.Reveal.slideContent.layout( this.Reveal.getSlidesElement() );
// Notify subscribers that the PDF layout is good to go
this.Reveal.dispatchEvent({ type: 'pdf-ready' });
if( printing ) {
// Notify subscribers that the PDF layout is good to go
this.Reveal.dispatchEvent({ type: 'pdf-ready' });
}
}
/**
* Checks if this instance is being used to print a PDF.
* Checks if reveal.js was initialized in printing mode.
*/
isPrintingPDF() {
isPrintMode() {
return ( /print-pdf/gi ).test( window.location.search );
if( typeof this._isPrintMode === 'undefined' ) {
this._isPrintMode = this.Reveal.getConfig().mode === 'pdf' ||
( /print-pdf/gi ).test( window.location.search );
}
return this._isPrintMode;
}
/**
* Checks if reveal.js was initialized in reader mode.
*/
isReaderMode() {
if( typeof this._isReaderMode === 'undefined' ) {
this._isReaderMode = this.Reveal.getConfig().mode === 'reader';
}
return this._isReaderMode;
}
isActive() {
return this.isPrintMode() || this.isReaderMode();
}