https://compuhomesoluciones.com/wp-content/themes/hostcluster/js/jquery.sticky.js?ver=1.0.0

1// 6. Sticky Plugin v1.0.0 for jQuery
2// =============
3// Author: Anthony Garand
4// Improvements by German M. Bravo (Kronuz) and Ruud Kamphuis (ruudk)
5// Improvements by Leonardo C. Daronco (daronco)
6// Created: 2/14/2011
7// Date: 2/12/2012
8// Website: http://labs.anthonygarand.com/sticky
9// Description: Makes an element on the page stick on the screen as you scroll
10//       It will only set the 'top' and 'position' of your element, you
11//       might need to adjust the width in some cases.
12
13(function($) {
14  'use strict';
15  var defaults = {
16      topSpacing: 0,
17      bottomSpacing: 0,
18      className: 'is-sticky',
19      wrapperClassName: 'sticky-wrapper',
20      center: false,
21      getWidthFrom: ''
22    },
23    $window = $(window),
24    $document = $(document),
25    sticked = [],
26    windowHeight = $window.height(),
27    scroller = function() {
28      var scrollTop = $window.scrollTop(),
29        documentHeight = $document.height(),
30        dwh = documentHeight - windowHeight,
31        extra = (scrollTop > dwh) ? dwh - scrollTop : 0;
32
33      for (var i = 0; i < sticked.length; i++) {
34        var s = sticked[i],
35          elementTop = s.stickyWrapper.offset().top,
36          etse = elementTop - s.topSpacing - extra;
37
38        if (scrollTop <= etse) {
39          if (s.currentTop !== null) {
40            s.stickyElement
41              .css('position', '')
42              .css('top', '');
43            s.stickyElement.parent().removeClass(s.className);
44            s.currentTop = null;
45          }
46        }
47        else {
48          var newTop = documentHeight - s.stickyElement.outerHeight()
49            - s.topSpacing - s.bottomSpacing - scrollTop - extra;
50          if (newTop < 0) {
51            newTop = newTop + s.topSpacing;
52          } else {
53            newTop = s.topSpacing;
54          }
55          if (s.currentTop != newTop) {
56            s.stickyElement
57              .css('position', 'fixed')
58              .css('top', newTop);
59
60            if (typeof s.getWidthFrom !== 'undefined') {
61              s.stickyElement.css('width', $(s.getWidthFrom).width());
62            }
63
64            s.stickyElement.parent().addClass(s.className);
65            s.currentTop = newTop;
66          }
67        }
68      }
69    },
70    resizer = function() {
71      windowHeight = $window.height();
72    },
73    methods = {
74      init: function(options) {
75        var o = $.extend(defaults, options);
76        return this.each(function() {
77          var stickyElement = $(this);
78
79          var stickyId = stickyElement.attr('id');
80          var wrapper = $('<div></div>')
81            .attr('id', stickyId + '-sticky-wrapper')
82            .addClass(o.wrapperClassName);
83          stickyElement.wrapAll(wrapper);
84
85          if (o.center) {
86            stickyElement.parent().css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"});
87          }
88
89          if (stickyElement.css("float") == "right") {
90            stickyElement.css({"float":"none"}).parent().css({"float":"right"});
91          }
92
93          var stickyWrapper = stickyElement.parent();
94          stickyWrapper.css('height', stickyElement.outerHeight());
95          sticked.push({
96            topSpacing: o.topSpacing,
97            bottomSpacing: o.bottomSpacing,
98            stickyElement: stickyElement,
99            currentTop: null,
100            stickyWrapper: stickyWrapper,
101            className: o.className,
102            getWidthFrom: o.getWidthFrom
103          });
104        });
105      },
106      update: scroller
107    };
108
109  if (window.addEventListener) {
110    window.addEventListener('scroll', scroller, false);
111    window.addEventListener('resize', resizer, false);
112  } else if (window.attachEvent) {
113    window.attachEvent('onscroll', scroller);
114    window.attachEvent('onresize', resizer);
115  }
116
117  $.fn.sticky = function(method) {
118    if (methods[method]) {
119      return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
120    } else if (typeof method === 'object' || !method ) {
121      return methods.init.apply( this, arguments );
122    } else {
123      $.error('Method ' + method + ' does not exist on jQuery.sticky');
124    }
125  };
126  $(function() {
127    setTimeout(scroller, 0);
128  });
129})(jQuery);
130