https://www.nysed.gov/sites/all/libraries/superfish/supposition.js?tlrvmg

1/*
2 * Supposition v0.2 - an optional enhancer for Superfish jQuery menu widget.
3 *
4 * Copyright (c) 2008 Joel Birch - based mostly on work by Jesse Klaasse and credit goes largely to him.
5 * Special thanks to Karl Swedberg for valuable input.
6 *
7 * Dual licensed under the MIT and GPL licenses:
8 *  http://www.opensource.org/licenses/mit-license.php
9 *  http://www.gnu.org/licenses/gpl.html
10 */
11/*
12 * This is not the original jQuery Supposition plugin.
13 * Please refer to the README for more information.
14 */
15
16(function($){
17  $.fn.supposition = function(){
18    var $w = $(window), /*do this once instead of every onBeforeShow call*/
19    _offset = function(dir) {
20      return window[dir == 'y' ? 'pageYOffset' : 'pageXOffset']
21      || document.documentElement && document.documentElement[dir=='y' ? 'scrollTop' : 'scrollLeft']
22      || document.body[dir=='y' ? 'scrollTop' : 'scrollLeft'];
23    },
24    onHide = function(){
25      this.css({bottom:''});
26    },
27    onBeforeShow = function(){
28      this.each(function(){
29        var $u = $(this);
30        $u.css('display','block');
31        var $mul = $u.closest('.sf-menu'),
32        level = $u.parents('ul').length,
33        menuWidth = $u.width(),
34        menuParentWidth = $u.closest('li').outerWidth(true),
35        menuParentLeft = $u.closest('li').offset().left,
36        totalRight = $w.width() + _offset('x'),
37        menuRight = $u.offset().left + menuWidth,
38        exactMenuWidth = (menuRight > (menuParentWidth + menuParentLeft)) ? menuWidth - (menuRight - (menuParentWidth + menuParentLeft)) : menuWidth;
39        if ($u.parents('.sf-js-enabled').hasClass('rtl')) {
40          if (menuParentLeft < exactMenuWidth) {
41            if (($mul.hasClass('sf-horizontal') && level == 1) || ($mul.hasClass('sf-navbar') && level == 2)){
42              $u.css({left:0,right:'auto'});
43            }
44            else {
45              $u.css({left:menuParentWidth + 'px',right:'auto'});
46            }
47          }
48        }
49        else {
50          if (menuRight > totalRight && menuParentLeft > menuWidth) {
51            if (($mul.hasClass('sf-horizontal') && level == 1) || ($mul.hasClass('sf-navbar') && level == 2)){
52              $u.css({right:0,left:'auto'});
53            }
54            else {
55              $u.css({right:menuParentWidth + 'px',left:'auto'});
56            }
57          }
58        }
59        var windowHeight = $w.height(),
60        offsetTop = $u.offset().top,
61        menuParentShadow = ($mul.hasClass('sf-shadow') && $u.css('padding-bottom').length > 0) ? parseInt($u.css('padding-bottom').slice(0,-2)) : 0,
62        menuParentHeight = ($mul.hasClass('sf-vertical')) ? '-' + menuParentShadow : $u.parent().outerHeight(true) - menuParentShadow,
63        menuHeight = $u.height(),
64        baseline = windowHeight + _offset('y');
65        var expandUp = ((offsetTop + menuHeight > baseline) && (offsetTop > menuHeight));
66        if (expandUp) {
67          $u.css({bottom:menuParentHeight + 'px',top:'auto'});
68        }
69        $u.css('display','none');
70      });
71    };
72
73    return this.each(function() {
74      var o = $.fn.superfish.o[this.serial]; /* get this menu's options */
75
76      /* if callbacks already set, store them */
77      var _onBeforeShow = o.onBeforeShow,
78      _onHide = o.onHide;
79
80      $.extend($.fn.superfish.o[this.serial],{
81        onBeforeShow: function() {
82          onBeforeShow.call(this); /* fire our Supposition callback */
83          _onBeforeShow.call(this); /* fire stored callbacks */
84        },
85        onHide: function() {
86          onHide.call(this); /* fire our Supposition callback */
87          _onHide.call(this); /* fire stored callbacks */
88        }
89      });
90    });
91  };
92})(jQuery);