Comment puis-je faire Bootstrap de navigation déroulant à glisser doucement en haut et en bas?

Si quelqu'un a besoin d' - vérifier ma solution. Modifié bootstrap-dropdown.js ci-dessous.
Plutôt que de commutation de l'affichage:aucun display:block, j'utilise slideToggle. Et pour bootstrap CSS ne pas interract j'ai changé de classe de l'ouverture de l'élément de menu "ouvert" à "ouvert".

/* ============================================================
* bootstrap-dropdown.js v2.3.0
* http://twitter.github.com/bootstrap/javascript.html#dropdowns
* ============================================================
* Copyright 2012 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"; //jshint ;_;
/* DROPDOWN CLASS DEFINITION
* ========================= */
var toggle = '[data-toggle=dropdown]'
, Dropdown = function (element) {
var $el = $(element).on('click.dropdown.data-api', this.toggle)
$('html').on('click.dropdown.data-api', function () {
$(toggle).next('ul').slideToggle();
$el.parent().removeClass('opened')
})
}
Dropdown.prototype = {
constructor: Dropdown
, toggle: function (e) {
var $this = $(this)
, $parent
, isActive
if ($this.is('.disabled, :disabled')) return
$parent = getParent($this)
isActive = $parent.hasClass('opened')
clearMenus()
if (!isActive) {
$(this).next('ul').slideToggle();
$parent.toggleClass('opened')
}
$this.focus()
return false
}
, keydown: function (e) {
var $this
, $items
, $active
, $parent
, isActive
, index
if (!/(38|40|27)/.test(e.keyCode)) return
$this = $(this)
e.preventDefault()
e.stopPropagation()
if ($this.is('.disabled, :disabled')) return
$parent = getParent($this)
isActive = $parent.hasClass('opened')
if (!isActive || (isActive && e.keyCode == 27)) {
if (e.which == 27) $parent.find(toggle).focus()
return $this.click()
}
$items = $('[role=menu] li:not(.divider):visible a', $parent)
if (!$items.length) return
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() {
$(toggle).each(function () {
if (getParent($(this)).hasClass('opened')) {
$(this).next('ul').slideToggle();
getParent($(this)).removeClass('opened');
}
})
}
function getParent($this) {
var selector = $this.attr('data-target')
, $parent
if (!selector) {
selector = $this.attr('href')
selector = selector && /#/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
}
$parent = selector && $(selector)
if (!$parent || !$parent.length) $parent = $this.parent()
return $parent
}
/* DROPDOWN PLUGIN DEFINITION
* ========================== */
var old = $.fn.dropdown
$.fn.dropdown = function (option) {
return this.each(function () {
var $this = $(this)
, data = $this.data('dropdown')
if (!data) $this.data('dropdown', (data = new Dropdown(this)))
if (typeof option == 'string') data[option].call($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.dropdown.data-api', clearMenus)
.on('click.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
.on('.dropdown-menu', function (e) { e.stopPropagation() })
.on('click.dropdown.data-api'  , toggle, Dropdown.prototype.toggle)
.on('keydown.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
}(window.jQuery); 

OriginalL'auteur Jovian