https://www.ardencompanies.com/wp-content/plugins/zeyn_vc_addon/js/scrollspy.js?ver=1.0

1(function($, UI) {
2
3    "use strict";
4
5
6    var $win        = $(window),
7
8        ScrollSpy   = function(element, options) {
9
10            var $element = $(element);
11
12            if($element.data("scrollspy")) return;
13
14            this.options = $.extend({}, ScrollSpy.defaults, options);
15            this.element = $(element);
16
17            var $this = this, idle, inviewstate, initinview,
18                fn = function(){
19
20                    var inview = isInView($this.element, $this.options);
21
22                    if(inview && !inviewstate) {
23
24                        if(idle) clearTimeout(idle);
25
26                        if(!initinview) {
27                            $this.element.addClass($this.options.initcls);
28                            $this.offset = $this.element.offset();
29                            initinview = true;
30
31                            $this.element.trigger("uk-scrollspy-init");
32                        }
33
34                        idle = setTimeout(function(){
35
36                            if(inview) {
37                                $this.element.addClass("uk-scrollspy-inview").addClass($this.options.cls).width();
38                            }
39
40                        }, $this.options.delay);
41
42                        inviewstate = true;
43                        $this.element.trigger("uk.scrollspy.inview");
44                    }
45
46                    if (!inview && inviewstate && $this.options.repeat) {
47                        $this.element.removeClass("uk-scrollspy-inview").removeClass($this.options.cls);
48                        inviewstate = false;
49
50                        $this.element.trigger("uk.scrollspy.outview");
51                    }
52                };
53
54            $win.on("scroll", fn).on("resize orientationchange", UI.Utils.debounce(fn, 50));
55
56            fn();
57
58            this.element.data("scrollspy", this);
59        };
60
61    ScrollSpy.defaults = {
62        "cls"        : "uk-scrollspy-inview",
63        "initcls"    : "uk-scrollspy-init-inview",
64        "topoffset"  : 0,
65        "leftoffset" : 0,
66        "repeat"     : false,
67        "delay"      : 0
68    };
69
70    UI["scrollspy"] = ScrollSpy;
71
72    var ScrollSpyNav = function(element, options) {
73
74        var $element = $(element);
75
76        if($element.data("scrollspynav")) return;
77
78        this.element = $element;
79        this.options = $.extend({}, ScrollSpyNav.defaults, options);
80
81        var ids     = [],
82            links   = this.element.find("a[href^='#']").each(function(){ ids.push($(this).attr("href")); }),
83            targets = $(ids.join(","));
84
85        var $this = this, inviews, fn = function(){
86
87            inviews = [];
88
89            for(var i=0 ; i < targets.length ; i++) {
90                if(isInView(targets.eq(i), $this.options)) {
91                    inviews.push(targets.eq(i));
92                }
93            }
94
95            if(inviews.length) {
96
97                var scrollTop = $win.scrollTop(),
98                    target = (function(){
99                        for(var i=0; i< inviews.length;i++){
100                            if(inviews[i].offset().top >= scrollTop){
101                                return inviews[i];
102                            }
103                        }
104                    })();
105
106                if(!target) return;
107
108                if($this.options.closest) {
109                    links.closest($this.options.closest).removeClass($this.options.cls).end().filter("a[href='#"+target.attr("id")+"']").closest($this.options.closest).addClass($this.options.cls);
110                } else {
111                    links.removeClass($this.options.cls).filter("a[href='#"+target.attr("id")+"']").addClass($this.options.cls);
112                }
113            }
114        };
115
116        if(this.options.smoothscroll && UI["smoothScroll"]) {
117            links.each(function(){
118                new UI["smoothScroll"](this, $this.options.smoothscroll);
119            });
120        }
121
122        fn();
123
124        $win.on("scroll", fn).on("resize orientationchange", UI.Utils.debounce(fn, 50));
125
126        this.element.data("scrollspynav", this);
127    };
128
129    ScrollSpyNav.defaults = {
130        "cls"          : 'uk-active',
131        "closest"      : false,
132        "topoffset"    : 0,
133        "leftoffset"   : 0,
134        "smoothscroll" : false
135    };
136
137    UI["scrollspynav"] = ScrollSpyNav;
138
139    // helper
140
141    function isInView(element, options) {
142
143        var $element = element;
144
145        if (!$element.is(':visible')) {
146            return false;
147        }
148
149        var window_left = $win.scrollLeft(), window_top = $win.scrollTop(), offset = $element.offset(), left = offset.left, top = offset.top;
150
151        if (top + $element.height() >= window_top && top - options.topoffset <= window_top + $win.height() &&
152            left + $element.width() >= window_left && left - options.leftoffset <= window_left + $win.width()) {
153          return true;
154        } else {
155          return false;
156        }
157    }
158
159    ScrollSpy.isInView = isInView;
160
161    // init code
162    $(document).on("uk-domready", function(e) {
163        $("[data-uk-scrollspy]").each(function() {
164
165            var element = $(this);
166
167            if (!element.data("scrollspy")) {
168                var obj = new ScrollSpy(element, UI.Utils.options(element.attr("data-uk-scrollspy")));
169            }
170        });
171
172        $("[data-uk-scrollspy-nav]").each(function() {
173
174            var element = $(this);
175
176            if (!element.data("scrollspynav")) {
177                var obj = new ScrollSpyNav(element, UI.Utils.options(element.attr("data-uk-scrollspy-nav")));
178            }
179        });
180    });

181
182})(jQuery, jQuery.UIkit);