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