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/* ========================================================================
* Bootstrap: dropdown.js v3.1.0
* 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);
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