https://studio.bluelionguides.com/jsx/XWiki/Fancyapps/Fancybox?language=it&docVersion=1.1

1require.config({paths:{fancybox:"/webjars/wiki%3Astudio/fancyapps__fancybox/3.5.5/dist/jquery.fancybox.min.js?r\x3d1"},shim:{jquery:{exports:"$"},fancybox:{deps:["jquery"]}}});
2require(["jquery","fancybox"],function(e,m){function g(){var a=e(this);a.hasClass("xwiki-book-header-gallery-overlay")&&(a=a.next());a=a.find("img");if(0<a.length){const c=a.attr("src");a=f.findIndex(b=>b.src===c);0>a||e.fancybox.open(f,{loop:!0,infobar:!0,buttons:["close"],image:{preload:!0},arrows:!0,animationEffect:"fade",animationDuration:600,transitionDuration:300,idleTime:3,preventCaptionOverlap:!1,wheel:!1,thumbs:{autoStart:!1},clickSlide:!1,clickOutside:!1,baseTpl:`<div class="fancybox-container" role="dialog" tabindex="-1">
3                    <div class="fancybox-bg"></div>
4                    <div class="fancybox-inner">
5                      <div class="fancybox-infobar">
6                        <span data-fancybox-index></span>/<span data-fancybox-count></span>
7                      </div>
8                      ${h}
9                      <div class="fancybox-toolbar">
10                        <span data-fancybox-close class="fancybox-button--close" title="{{CLOSE}}">\u00d7</span>
11                      </div>
12                      <div class="fancybox-stage"></div>
13                      <div class="fancybox-caption">
14                        <div class="fancybox-caption__body"></div>
15                      </div>
16                    </div>
17                  </div>`,afterLoad:function(b,d){b=window.screen.width/d.width;const l=window.screen.height/d.height;let k=1.4;1024>=window.screen.width&&(k=1.6);b=Math.min(b,l)*k;d.width*=b;d.height*=b}},a)}}let f=[];e('figure[data-xwiki-lightbox!\x3d"false"]').each(function(a,c){a=e(c);c=a.find("img");if(0<c.length){var b=c.attr("src");let d=a.find("figcaption");d=d.html();f.push({src:b,caption:d});b=a.next().get(0);void 0!==b&&"FIGURE"===b.nodeName&&(b=e('\x3cspan class\x3d"xwiki-book-gallery-multiple-images-icon blg-icon blg-icon-images"\x3e\x3c/span\x3e'),
18b.appendTo(a),c=c[0].clientHeight,0<c&&(b.css({top:c-40}),a.css({position:"relative"})))}});var h='\x3cdiv class\x3d"fancybox-navigation"\x3e\n      \x3cspan data-fancybox-prev class\x3d"fancybox-button fa fa-angle-left fancybox-button--arrow_left" title\x3d"{{PREV}}"\x3e\x3c/span\x3e\n      \x3cspan data-fancybox-next class\x3d"fancybox-button fa fa-angle-right fancybox-button--arrow_right" title\x3d"{{NEXT}}"\x3e\x3c/span\x3e\n      \x3c/div\x3e';1===f.length&&(h='\x3cdiv class\x3d"fancybox-navigation"\x3e\x3c/div\x3e');
19e('figure[data-xwiki-lightbox!\x3d"false"]').on("click",g);e(".xwiki-book-header-gallery-overlay").on("click",g)});