https://www.idpoisson.fr/wp-content/plugins/wp-showhide/js/wp-showhide.js?ver=3.0.0

1/**
2 * WP-ShowHide's front end toggle.
3 *
4 * One delegated listener on the document rather than one per block: the
5 * shortcode can appear any number of times on a page, and blocks rendered
6 * after this file runs -- by a lazy-loaded comment list, an AJAX-paginated
7 * archive -- work without anything having to re-bind.
8 *
9 * Everything the handler needs is on the markup: the button carries its two
10 * labels in data-sh-more and data-sh-less, its state in aria-expanded, and the
11 * id of the element it controls in aria-controls.
12 */
13( function() {
14	document.addEventListener( 'click', function( event ) {
15		// closest() is missing on a non-element target, which a click on a
16		// text node inside the button reports in some browsers.
17		const button = event.target.closest?.( '.sh-toggle' );
18
19		if ( ! button ) {
20			return;
21		}
22
23		const wrap = button.closest( '.sh-link' );
24		const content = document.getElementById(
25			button.getAttribute( 'aria-controls' ),
26		);
27		const expanded = button.getAttribute( 'aria-expanded' ) === 'true';
28
29		// Markup the plugin did not render, or content that has since been
30		// removed: leave it alone rather than throwing.
31		if ( ! wrap || ! content ) {
32			return;
33		}
34
35		button.setAttribute( 'aria-expanded', expanded ? 'false' : 'true' );
36		button.textContent = expanded
37			? button.dataset.shMore
38			: button.dataset.shLess;
39		content.hidden = expanded;
40
41		[ wrap, content ].forEach( function( element ) {
42			element.classList.toggle( 'sh-show', ! expanded );
43			element.classList.toggle( 'sh-hide', expanded );
44		} );
45
46		// Fired on .sh-link and bubbling, so a theme can listen once on the
47		// document. The names predate the plugin's own hook prefix and are
48		// part of its public API, so they keep their spelling.
49		[
50			expanded ? 'sh-link:less' : 'sh-link:more',
51			'sh-link:toggle',
52		].forEach( function( name ) {
53			wrap.dispatchEvent( new CustomEvent( name, { bubbles: true } ) );
54		} );
55	} );
56}() );