https://www.ncdor.gov/themes/contrib/bootstrap_barrio/js/barrio.js?v=10.6.15

1/**
2 * @file
3 * Global utilities.
4 *
5 */
6(function (Drupal) {
7
8  'use strict';
9
10  Drupal.behaviors.bootstrap_barrio = {
11    attach: function (context, settings) {
12
13      var position = window.scrollY;
14      window.addEventListener('scroll', function() {
15        if (window.scrollY > 50) {
16          document.querySelector('body').classList.add("scrolled");
17        }
18        else {
19          document.querySelector('body').classList.remove("scrolled");
20        }
21        var scroll = window.scrollY;
22        if (scroll > position) {
23          document.querySelector('body').classList.add("scrolldown");
24          document.querySelector('body').classList.remove("scrollup");
25        } else {
26          document.querySelector('body').classList.add("scrollup");
27          document.querySelector('body').classList.remove("scrolldown");
28        }
29        position = scroll;
30      });
31
32      document.addEventListener('click', function (event) {
33
34        // If the clicked element doesn't have the right selector, bail
35        if (!event.target.matches('.dropdown-item a.dropdown-toggle')) return;
36      
37        // Don't follow the link
38        event.preventDefault();
39      
40        toggle(event.target.next('ul'));
41        event.stopPropagation();
42      
43      }, false);
44      
45      // Toggle element visibility
46      var toggle = function (elem) {
47
48        // If the element is visible, hide it
49        if (window.getComputedStyle(elem).display === 'block') {
50          hide(elem);
51          return;
52        }
53
54        // Otherwise, show it
55        show(elem);
56
57      };
58      
59      var show = function (elem) {
60        elem.style.display = 'block';
61      };
62      
63      var hide = function (elem) {
64        elem.style.display = 'none';
65      };
66    }
67  };
68
69})(Drupal);