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add lightbox to reveal.js state, enables syncing with speaker view #3771

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Hakim El Hattab
2025-03-24 15:34:51 +01:00
parent 47ee25dd19
commit c69adfb022
6 changed files with 63 additions and 8 deletions
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43
js/controllers/overlay.js
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@@ -2,6 +2,7 @@
* Handles the display of reveal.js' overlay elements used
* to preview iframes, images & videos.
*/
export default class Overlay {
constructor( Reveal ) {
@@ -13,6 +14,8 @@ export default class Overlay {
this.linkPreviewSelector = null;
this.mediaPreviewSelector = '[data-preview-image], [data-preview-video]';
this.state = {};
}
update() {
@@ -62,6 +65,8 @@ export default class Overlay {
this.close();
this.state.previewIframe = url;
this.createOverlay( 'r-overlay-preview' );
this.dom.dataset.state = 'loading';
@@ -113,9 +118,11 @@ export default class Overlay {
this.close();
const fitMode = trigger ? trigger.dataset.previewFit || 'scale-down' : 'scale-down';
this.createOverlay( 'r-overlay-preview' );
this.dom.dataset.state = 'loading';
this.dom.dataset.previewFit = trigger ? trigger.dataset.previewFit || 'scale-down' : 'scale-down';
this.dom.dataset.previewFit = fitMode;
this.viewport.innerHTML =
`<header class="r-overlay-header">
@@ -128,6 +135,8 @@ export default class Overlay {
if( mediaType === 'image' ) {
this.state = { previewImage: url, previewFit: fitMode }
const img = document.createElement( 'img', {} );
img.src = url;
contentElement.appendChild( img );
@@ -151,6 +160,8 @@ export default class Overlay {
}
else if( mediaType === 'video' ) {
this.state = { previewVideo: url, previewFit: fitMode }
const video = document.createElement( 'video' );
video.autoplay = this.dom.dataset.previewAutoplay === 'false' ? false : true;
video.controls = this.dom.dataset.previewControls === 'false' ? false : true;
@@ -257,7 +268,9 @@ export default class Overlay {
}
isOpen() {
return !!this.dom;
}
/**
@@ -268,6 +281,11 @@ export default class Overlay {
if( this.dom ) {
this.dom.remove();
this.dom = null;
this.state = {};
this.Reveal.dispatchEvent({ type: 'closeoverlay' });
return true;
}
@@ -275,6 +293,29 @@ export default class Overlay {
}
getState() {
return this.state;
}
setState( state ) {
if( state.previewIframe ) {
this.showIframePreview( state.previewIframe );
}
else if( state.previewImage ) {
this.showMediaPreview( state.previewImage, 'image' );
}
else if( state.previewVideo ) {
this.showMediaPreview( state.previewVideo, 'video' );
}
else {
this.close();
}
}
onSlidesClicked( event ) {
const target = event.target;