Team:Heidelberg/js/dropdown-doubletap
From 2014.igem.org
/* ========================================================================
* Bootstrap: dropdown-doubletap.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);