mirror of
https://github.com/twbs/bootstrap.git
synced 2025-10-30 00:05:32 -04:00
150 lines
3.9 KiB
JavaScript
150 lines
3.9 KiB
JavaScript
/* ============================================================
|
|
* bootstrap-dropdown.js v2.1.1
|
|
* 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 () {
|
|
$el.parent().removeClass('open')
|
|
})
|
|
}
|
|
|
|
Dropdown.prototype = {
|
|
|
|
constructor: Dropdown
|
|
|
|
, toggle: function (e) {
|
|
var $this = $(this)
|
|
, $parent
|
|
, isActive
|
|
|
|
if ($this.is('.disabled, :disabled')) return
|
|
|
|
$parent = getParent($this)
|
|
|
|
isActive = $parent.hasClass('open')
|
|
|
|
clearMenus()
|
|
|
|
if (!isActive) {
|
|
$parent.toggleClass('open')
|
|
$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('open')
|
|
|
|
if (!isActive || (isActive && e.keyCode == 27)) return $this.click()
|
|
|
|
$items = $('[role=menu] li:not(.divider) 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
|
|
|
|
$items
|
|
.eq(index)
|
|
.focus()
|
|
}
|
|
|
|
}
|
|
|
|
function clearMenus() {
|
|
getParent($(toggle))
|
|
.removeClass('open')
|
|
}
|
|
|
|
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)
|
|
$parent.length || ($parent = $this.parent())
|
|
|
|
return $parent
|
|
}
|
|
|
|
|
|
/* DROPDOWN PLUGIN DEFINITION
|
|
* ========================== */
|
|
|
|
$.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
|
|
|
|
|
|
/* APPLY TO STANDARD DROPDOWN ELEMENTS
|
|
* =================================== */
|
|
|
|
$(function () {
|
|
$('html')
|
|
.on('click.dropdown.data-api touchstart.dropdown.data-api', clearMenus)
|
|
$('body')
|
|
.on('click.dropdown touchstart.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
|
|
.on('click.dropdown.data-api touchstart.dropdown.data-api' , toggle, Dropdown.prototype.toggle)
|
|
.on('keydown.dropdown.data-api touchstart.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
|
|
})
|
|
|
|
}(window.jQuery); |