https://www.vau-max.de/bdEmagsFrontendPlugin/js/bootstrap/dropdown.js

1/* ========================================================================
2 * Bootstrap: dropdown.js v3.1.1
3 * http://getbootstrap.com/javascript/#dropdowns
4 * ========================================================================
5 * Copyright 2011-2014 Twitter, Inc.
6 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
7 * ======================================================================== */
8
9
10+function ($) {
11  'use strict';
12
13  // DROPDOWN CLASS DEFINITION
14  // =========================
15
16  var backdrop = '.dropdown-backdrop'
17  var toggle   = '[data-toggle="dropdown"]'
18  var Dropdown = function (element) {
19    $(element).on('click.bs.dropdown', this.toggle)
20  }
21
22  Dropdown.prototype.toggle = function (e) {
23    var $this = $(this)
24
25    if ($this.is('.disabled, :disabled')) return
26
27    var $parent  = getParent($this)
28    var isActive = $parent.hasClass('open')
29
30    clearMenus()
31
32    if (!isActive) {
33      if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {
34        // if mobile we use a backdrop because click events don't delegate
35        $('<div class="dropdown-backdrop"/>').insertAfter($(this)).on('click', clearMenus)
36      }
37
38      var relatedTarget = { relatedTarget: this }
39      $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))
40
41      if (e.isDefaultPrevented()) return
42
43      $parent
44        .toggleClass('open')
45        .trigger('shown.bs.dropdown', relatedTarget)
46
47      $this.trigger('focus')
48    }
49
50    return false
51  }
52
53  Dropdown.prototype.keydown = function (e) {
54    if (!/(38|40|27)/.test(e.keyCode)) return
55
56    var $this = $(this)
57
58    e.preventDefault()
59    e.stopPropagation()
60
61    if ($this.is('.disabled, :disabled')) return
62
63    var $parent  = getParent($this)
64    var isActive = $parent.hasClass('open')
65
66    if (!isActive || (isActive && e.keyCode == 27)) {
67      if (e.which == 27) $parent.find(toggle).trigger('focus')
68      return $this.trigger('click')
69    }
70
71    var desc = ' li:not(.divider):visible a'
72    var $items = $parent.find('[role="menu"]' + desc + ', [role="listbox"]' + desc)
73
74    if (!$items.length) return
75
76    var index = $items.index($items.filter(':focus'))
77
78    if (e.keyCode == 38 && index > 0)                 index--                        // up
79    if (e.keyCode == 40 && index < $items.length - 1) index++                        // down
80    if (!~index)                                      index = 0
81
82    $items.eq(index).trigger('focus')
83  }
84
85  function clearMenus(e) {
86    $(backdrop).remove()
87    $(toggle).each(function () {
88      var $parent = getParent($(this))
89      var relatedTarget = { relatedTarget: this }
90      if (!$parent.hasClass('open')) return
91      $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))
92      if (e.isDefaultPrevented()) return
93      $parent.removeClass('open').trigger('hidden.bs.dropdown', relatedTarget)
94    })
95  }
96
97  function getParent($this) {
98    var selector = $this.attr('data-target')
99
100    if (!selector) {
101      selector = $this.attr('href')
102      selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
103    }
104
105    var $parent = selector && $(selector)
106
107    return $parent && $parent.length ? $parent : $this.parent()
108  }
109
110
111  // DROPDOWN PLUGIN DEFINITION
112  // ==========================
113
114  var old = $.fn.dropdown
115
116  $.fn.dropdown = function (option) {
117    return this.each(function () {
118      var $this = $(this)
119      var data  = $this.data('bs.dropdown')
120
121      if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))
122      if (typeof option == 'string') data[option].call($this)
123    })
124  }
125
126  $.fn.dropdown.Constructor = Dropdown
127
128
129  // DROPDOWN NO CONFLICT
130  // ====================
131
132  $.fn.dropdown.noConflict = function () {
133    $.fn.dropdown = old
134    return this
135  }
136
137
138  // APPLY TO STANDARD DROPDOWN ELEMENTS
139  // ===================================
140
141  $(document)
142    .on('click.bs.dropdown.data-api', clearMenus)
143    .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
144    .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)
145    .on('keydown.bs.dropdown.data-api', toggle + ', [role="menu"], [role="listbox"]', Dropdown.prototype.keydown)
146
147}(jQuery);