General.Web/wwwroot/lib/bootstrap/3.3.7/js/bootstrap.dropdown.js

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/* =======================================================================
 * Bootstrap.dropdown.js v3.3.0
 * http://getbootstrap.com/javascript/#dropdowns
 * ========================================================================
 * Copyright 2011-2014 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * ======================================================================== */
!function ($) {
    'use strict';
    var backdrop = '.dropdown-backdrop';
    var toggle = '[data-toggle="dropdown"]';
    var Dropdown = function (element) {
        $(element).on('click.bs.dropdown', this.toggle)
    }
    Dropdown.VERSION = '3.3.5';
    function getParent($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();
    }
    function clearMenus(e) {
        if (e && e.which === 3) return $(backdrop).remove();
        $(toggle).each(function () {
            var $this = $(this);
            var $parent = getParent($this);
            var relatedTarget = {
                relatedTarget: this
            }
            if (!$parent.hasClass('open')) return;
            if (e) {
                if (e && e.type == 'click' && /input|textarea/i.test(e.target.tagName) && $.contains($parent[0], e.target)) return $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget));
                if (e.isDefaultPrevented()) return;
                $this.attr('aria-expanded', 'false');
                $parent.removeClass('open').trigger('hidden.bs.dropdown', relatedTarget);
            }
        });
    }
    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
                $(document.createElement('div')).addClass('dropdown-backdrop').insertAfter($(this)).on('click', clearMenus);
            }
            var relatedTarget = {
                relatedTarget: this
            }
            $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget));
            if (e.isDefaultPrevented()) return $this.trigger('focus').attr('aria-expanded', 'true');
            $parent.toggleClass('open').trigger('shown.bs.dropdown', relatedTarget);
        }
        return false;