https://www.iogp.org/bookstore/wp-content/themes/shopkeeper/js/public/global-wp-blocks.js?ver=8.6

1jQuery( function ($) {
2
3	"use strict";
4	
5	var uniqId = ( function() {
6	    var i=0;
7	    return function() {
8	        return i++;
9	    }
10	})();
11
12	// Add fresco to galleries
13	$( ".wp-block-gallery" ).each(function() {
14
15		var that = $(this);
16
17		that.attr('id', 'gallery-'+uniqId());
18
19	  	that.find('.blocks-gallery-item').each(function(){
20
21		  	var this_gallery_item = $(this);
22
23		  	var item_link = this_gallery_item.find('a').attr('href');
24
25		  	if( item_link ) {
26
27			  	item_link = item_link.split('.').pop();
28			  	
29			  	if( item_link && ( typeof item_link === 'string') && ( item_link == 'jpg' || item_link == 'jpeg' || item_link == 'png' || item_link == 'gif' ) ) {
30
31			  		this_gallery_item.find('a').addClass('fresco');
32					
33					this_gallery_item.find('.fresco').attr('data-fresco-group', that.attr('id'));
34
35					if ( this_gallery_item.find('figcaption').length > 0 ) {
36						this_gallery_item.find('.fresco').attr('data-fresco-caption', this_gallery_item.find('figcaption').text());
37					}
38			  	}
39		  	}			
40		});
41	});
42});