https://trtfn.com/wp-content/themes/scalia/js/jquery.sticky.js?ver=6.0.16

1(function ($) {
2
3	function getScrollY(elem){
4		return window.pageYOffset || document.documentElement.scrollTop;
5	}
6
7	function Sticky(el, options) {
8		var self = this;
9		this.el = el;
10		this.$el = $(el);
11
12		this.options = {
13		};
14		$.extend(this.options, options);
15
16		self.init();
17	}
18
19	$.fn.scSticky = function(options) {
20		$(this).each(function() {
21			return new Sticky(this, options);
22		});
23	}
24
25	Sticky.prototype = {
26		init: function() {
27			var self = this;
28
29			this.$wrapper = false;
30
31			this.$parent = this.getParent();
32
33			$(window).scroll(function() {
34				if (self.useSticky()) {
35					self.wrap();
36					self.scroll();
37				} else {
38					self.unwrap();
39				}
40			});
41
42			$(window).resize(function() {
43				if (self.useSticky()) {
44					self.wrap();
45					self.scroll();
46				} else {
47					self.unwrap();
48				}
49			});
50		},
51
52		wrap: function() {
53			if (!this.$wrapper) 
54				this.$wrapper = this.$el.wrap('<div />').parent();
55
56			this.$wrapper.attr('class', this.$el.attr('class')).addClass('sc-sticky-block').css({
57				padding: 0,
58				height: this.$el.outerHeight()
59			});
60
61			this.$el.css({
62				width: this.$wrapper.outerWidth(),
63				margin: 0
64			});
65		},
66
67		getParent: function() {
68			return this.$el.parent();
69		},
70
71		useSticky: function() {
72			var is_sidebar = true;
73			if (this.$el.hasClass('sidebar')) {
74				if (this.$wrapper) {
75					if (this.$wrapper.outerHeight() > this.$wrapper.siblings('.panel-center:first').outerHeight())
76						is_sidebar = false;
77				} else {
78					if (this.$el.outerHeight() > this.$el.siblings('.panel-center:first').outerHeight())
79						is_sidebar = false;
80				}
81			}
82
83			return $(window).width() > 1000 && is_sidebar;
84		},
85
86		unwrap: function() {
87			if (this.$el.parent().is('.sc-sticky-block')) {
88				this.$el.unwrap();
89				this.$wrapper = false;

90			}
91			this.$el.css({
92				width: "",
93				top: "",
94				bottom: "",
95				margin: ""
96			});
97		},
98
99		scroll: function() {
100			var top_offset = parseInt($('html').css('margin-top'));
101
102			var $header = $('#site-header');
103			if ($header.hasClass('fixed')) {
104				top_offset += $header.outerHeight();
105			}
106
107			var scroll = getScrollY();
108			var offset = this.$wrapper.offset();
109			var parent_offset = this.$parent.offset();
110			var parent_bottom = parent_offset.top + this.$parent.outerHeight() - scroll;
111			var bottom = $(window).height() - parent_bottom;
112
113			if ( (top_offset + this.$el.outerHeight() ) >= parent_bottom ) {
114				this.$el.addClass('sticky-fixed').css({
115					top: "",
116					bottom: bottom,
117					left: offset.left
118				});
119				return;
120			}
121
122			if ( (scroll + top_offset) > offset.top ) {
123				this.$el.addClass('sticky-fixed').css({
124					top: top_offset,
125					bottom: "",
126					left: offset.left
127				});
128			} else {
129				this.$el.removeClass('sticky-fixed').css({
130					top: "",
131					bottom: "",
132					left: ""
133				});
134			}
135		}
136	};
137
138}(jQuery));