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Code Issues Releases Wiki Activity

fix slide backgrounds being replaced by global background

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This commit is contained in:
Anas Bouzid 2024-02-04 21:26:06 -06:00
parent 28aee42e8e
commit aa31cab9e3
6 changed files with 17 additions and 6 deletions
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2
dist/reveal.esm.js vendored
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2
dist/reveal.esm.js.map vendored
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2
dist/reveal.js vendored
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dist/reveal.js.map vendored
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14
js/controllers/scrollview.js
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@ -1,4 +1,4 @@
import { HORIZONTAL_SLIDES_SELECTOR } from '../utils/constants.js'
import { HORIZONTAL_SLIDES_SELECTOR, SLIDES_BACKGROUNDS_SELECTOR } from '../utils/constants.js'
import { queryAll } from '../utils/util.js'
const HIDE_SCROLLBAR_TIMEOUT = 500;
@ -40,6 +40,7 @@ export default class ScrollView {
this.slideHTMLBeforeActivation = this.Reveal.getSlidesElement().innerHTML;
const horizontalSlides = queryAll( this.Reveal.getRevealElement(), HORIZONTAL_SLIDES_SELECTOR );
const slideBackgrounds = queryAll( this.Reveal.getRevealElement(), SLIDES_BACKGROUNDS_SELECTOR );
this.viewportElement.classList.add( 'loading-scroll-mode', 'reveal-scroll' );
@ -79,7 +80,16 @@ export default class ScrollView {
pageElements.push( page );
// Copy the presentation-wide background to each page
if( presentationBackground ) {
if( slideBackgrounds && slideBackgrounds.length > h ) {
const slideBackground = slideBackgrounds[h];
const pageBackground = window.getComputedStyle( slideBackground );
if( pageBackground && pageBackground.background ) {
page.style.background = pageBackground.background;
} else if( presentationBackground ) {
page.style.background = presentationBackground;
}
} else if( presentationBackground ) {
page.style.background = presentationBackground;
}

1
js/utils/constants.js
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@ -2,6 +2,7 @@
export const SLIDES_SELECTOR = '.slides section';
export const HORIZONTAL_SLIDES_SELECTOR = '.slides>section';
export const VERTICAL_SLIDES_SELECTOR = '.slides>section.present>section';
export const SLIDES_BACKGROUNDS_SELECTOR = '.slides>.backgrounds>.slide-background';
// Methods that may not be invoked via the postMessage API
export const POST_MESSAGE_METHOD_BLACKLIST = /registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener|showPreview/;