/* ========================================================================

  * Bootstrap: dropdown.js v3.0.3

  * http://getbootstrap.com/javascript/#dropdowns

  * ========================================================================

  * Copyright 2013 Twitter, Inc.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the 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)

       }

       $parent.trigger(e = $.Event('show.bs.dropdown'))

       if (e.isDefaultPrevented()) return

       $parent

         .toggleClass('open')

         .trigger('shown.bs.dropdown')

       $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 $items = $('[role=menu] li:not(.divider):visible a', $parent)

     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() {

     $(backdrop).remove()

     $(toggle).each(function (e) {

       var $parent = getParent($(this))

       if (!$parent.hasClass('open')) return

       $parent.trigger(e = $.Event('hide.bs.dropdown'))

       if (e.isDefaultPrevented()) return

       $parent.removeClass('open').trigger('hidden.bs.dropdown')

     })

   }

   function getParent($this) {

     var selector = $this.attr('data-target')

     if (!selector) {

       selector = $this.attr('href')

       selector = selector && /#/.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]' , Dropdown.prototype.keydown)

 }(jQuery);