https://www.hotel-orione.com/fileadmin/templates/scripts/mpScroll.js?1702978241

1function ScrollSharedFunctions() {
2    this.checkScrollDistance = function() {
3        return $(document).scrollTop() > 0 || $('html,body').scrollTop() > 0;
4    };
5
6    this.setScrollClass = function() {
7        if (!$(document.body).hasClass('disabledScroll')) {
8            if (this.checkScrollDistance()) {
9                $('.navigationDCE').addClass('scroll');
10                $('.navigationDCE').removeClass('notScroll');
11            } else {
12                $('.navigationDCE').removeClass('scroll');
13                $('.navigationDCE').addClass('notScroll');
14            }
15        }
16    };
17}
18
19function DefaultScroll() {
20    this.isScrollJacking = false;
21    this.scrollSharedFunctions = null;
22
23    this.scrollCallbacks = [];
24
25    this.init = function() {
26        let scrollObj = this;
27
28        scrollObj.scrollSharedFunctions = new ScrollSharedFunctions();
29
30        let scrolled = false;
31        document.addEventListener('scroll', function(event) {
32            scrolled = true;
33        }, {
34            capture: true,
35            passive: true
36        });
37
38        function onScroll() {
39            if (scrolled) {
40                scrollObj.scrollCallbacks.forEach(function(element) {
41                    element($(document).scrollTop());
42                });
43                scrollObj.scrollSharedFunctions.setScrollClass();
44                scrolled = false;
45            }
46
47            requestAnimationFrame(onScroll);
48        }
49
50        requestAnimationFrame(onScroll);
51
52        scrollObj.scrollSharedFunctions.setScrollClass();
53    }
54
55    this.scrollTo = function(targetPosY) {
56        $('html, body').animate({ scrollTop: targetPosY }, 800);
57    }
58
59    this.setScrollPosY = function(targetPosY) {
60        $('html, body').animate({ scrollTop: targetPosY }, 0);
61    }
62
63    this.init();
64}