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Code Issues Releases Wiki Activity

move fragments to separate controller

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This commit is contained in:
Hakim El Hattab
2020-03-09 18:51:07 +01:00
parent bdedc56d6f
commit 8a43753000
7 changed files with 1032 additions and 999 deletions
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33
js/controllers/slidecontent.js
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@@ -1,5 +1,6 @@
import { HORIZONTAL_SLIDES_SELECTOR, VERTICAL_SLIDES_SELECTOR } from '../utils/constants.js'
import { extend, toArray, closestParent } from '../utils/util.js'
import { isMobile } from '../utils/device.js'
/**
* Handles loading, unloading and playback of slide
@@ -13,6 +14,26 @@ export default class SlideContent {
}
/**
* Should the given element be preloaded?
* Decides based on local element attributes and global config.
*
* @param {HTMLElement} element
*/
shouldPreload( element ) {
// Prefer an explicit global preload setting
let preload = this.Reveal.getConfig().preloadIframes;
// If no global setting is available, fall back on the element's
// own preload setting
if( typeof preload !== 'boolean' ) {
preload = element.hasAttribute( 'data-preload' );
}
return preload;
}
/**
* Called when the given slide is within the configured view
* distance. Shows the slide element and loads any content
@@ -27,7 +48,7 @@ export default class SlideContent {
// Media elements with data-src attributes
toArray( slide.querySelectorAll( 'img[data-src], video[data-src], audio[data-src], iframe[data-src]' ) ).forEach( element => {
if( element.tagName !== 'IFRAME' || shouldPreload( element ) ) {
if( element.tagName !== 'IFRAME' || this.shouldPreload( element ) ) {
element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
element.setAttribute( 'data-lazy-loaded', '' );
element.removeAttribute( 'data-src' );
@@ -89,7 +110,7 @@ export default class SlideContent {
// Inline video playback works (at least in Mobile Safari) as
// long as the video is muted and the `playsinline` attribute is
// present
if( isMobileDevice ) {
if( isMobile ) {
video.muted = true;
video.autoplay = true;
video.setAttribute( 'playsinline', '' );
@@ -126,7 +147,7 @@ export default class SlideContent {
if( backgroundIframeElement ) {
// Check if this iframe is eligible to be preloaded
if( shouldPreload( background ) && !/autoplay=(1|true|yes)/gi.test( backgroundIframe ) ) {
if( this.shouldPreload( background ) && !/autoplay=(1|true|yes)/gi.test( backgroundIframe ) ) {
if( backgroundIframeElement.getAttribute( 'src' ) !== backgroundIframe ) {
backgroundIframeElement.setAttribute( 'src', backgroundIframe );
}
@@ -222,7 +243,7 @@ export default class SlideContent {
}
// Prefer an explicit global autoplay setting
let autoplay = config.autoPlayMedia;
let autoplay = this.Reveal.getConfig().autoPlayMedia;
// If no global setting is available, fall back on the element's
// own autoplay setting
@@ -238,7 +259,7 @@ export default class SlideContent {
}
// Mobile devices never fire a loaded event so instead
// of waiting, we initiate playback
else if( isMobileDevice ) {
else if( isMobile ) {
let promise = el.play();
// If autoplay does not work, ensure that the controls are visible so
@@ -327,7 +348,7 @@ export default class SlideContent {
if( isAttachedToDOM && isVisible ) {
// Prefer an explicit global autoplay setting
let autoplay = config.autoPlayMedia;
let autoplay = this.Reveal.getConfig().autoPlayMedia;
// If no global setting is available, fall back on the element's
// own autoplay setting