https://xn----7sbckibsejrrefibwo0a2d.xn--p1ai/local/templates/gvoz…/lib/sticky/jquery.sticky.js

1/*
2 * Sticky Plugin v1.0.0 for jQuery
3 * Free to use and abuse under the MIT license.
4 */
5
6(function($) {
7  var defaults = {
8      topSpacing: 0,
9      bottomSpacing: 650,
10      className: 'is-sticky',
11      wrapperClassName: 'sticky-wrapper',
12      center: false,
13      getWidthFrom: ''
14    },
15    $window = $(window),
16    $document = $(document),
17    sticked = [],
18    windowHeight = $window.height(),
19    scroller = function() {
20      var scrollTop = $window.scrollTop(),
21        documentHeight = $document.height(),
22        dwh = documentHeight - windowHeight,
23        extra = (scrollTop > dwh) ? dwh - scrollTop : 0;
24
25      for (var i = 0; i < sticked.length; i++) {
26        var s = sticked[i],
27          elementTop = s.stickyWrapper.offset().top,
28          etse = elementTop - s.topSpacing - extra;
29
30        if (scrollTop <= etse) {
31          if (s.currentTop !== null) {
32            s.stickyElement
33			.css('position', '')
34              .css('top', '');
35            s.stickyElement.parent().removeClass(s.className);
36            s.currentTop = null;
37          }
38        }
39        else {
40          var newTop = documentHeight - s.stickyElement.outerHeight()
41            - s.topSpacing - s.bottomSpacing - scrollTop - extra;
42          if (newTop < 0) {
43            newTop = newTop + s.topSpacing;
44          } else {
45            newTop = s.topSpacing;
46          }
47          if (s.currentTop != newTop) {
48            s.stickyElement
49              .css('position', 'fixed')
50              .css('top', newTop);
51
52            if (typeof s.getWidthFrom !== 'undefined') {
53              s.stickyElement.css('width', $(s.getWidthFrom).width());
54            }
55
56            s.stickyElement.parent().addClass(s.className);
57            s.currentTop = newTop;
58          }
59        }
60      }
61    },
62    resizer = function() {
63      windowHeight = $window.height();
64    },
65    methods = {
66      init: function(options) {
67        var o = $.extend(defaults, options);
68        return this.each(function() {
69          var stickyElement = $(this);
70
71          var stickyId = stickyElement.attr('id');
72          var wrapper = $('<div></div>')
73            .attr('id', stickyId + '-sticky-wrapper')
74            .addClass(o.wrapperClassName);
75          stickyElement.wrapAll(wrapper);
76
77          if (o.center) {
78            stickyElement.parent().css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"});
79          }
80
81          if (stickyElement.css("float") == "right") {
82            stickyElement.css({"float":"none"}).parent().css({"float":"right"});
83          }
84
85          var stickyWrapper = stickyElement.parent();
86          stickyWrapper.css('height', stickyElement.outerHeight());
87          sticked.push({
88            topSpacing: o.topSpacing,
89            bottomSpacing: o.bottomSpacing,
90            stickyElement: stickyElement,
91            currentTop: null,
92            stickyWrapper: stickyWrapper,
93            className: o.className,
94            getWidthFrom: o.getWidthFrom
95          });
96        });
97      },
98      update: scroller
99    };
100
101  // should be more efficient than using $window.scroll(scroller) and $window.resize(resizer):
102  if (window.addEventListener) {
103    window.addEventListener('scroll', scroller, false);
104    window.addEventListener('resize', resizer, false);
105  } else if (window.attachEvent) {
106    window.attachEvent('onscroll', scroller);
107    window.attachEvent('onresize', resizer);
108  }
109
110  $.fn.sticky = function(method) {
111    if (methods[method]) {
112      return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
113    } else if (typeof method === 'object' || !method ) {
114      return methods.init.apply( this, arguments );
115    } else {
116      $.error('Method ' + method + ' does not exist on jQuery.sticky');
117    }
118  };
119  $(function() {
120    setTimeout(scroller, 0);
121  });
122})(jQuery);
123