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/*!
* Bootstrap-submenu v2.0.3 (https://vsn4ik.github.io/bootstrap-submenu/)
* Copyright 2015 Vasily A. (https://github.com/vsn4ik)
* Licensed under the MIT license
*/
/**
* $.inArray: friends with IE8. Use Array.prototype.indexOf in future.
* $.proxy: friends with IE8. Use Function.prototype.bind in future.
*/
'use strict';
(function(factory) {
if (typeof define == 'function' && define.amd) {
// AMD. Register as an anonymous module
define(['jquery'], factory);
}
else if (typeof exports == 'object') {
// Node/CommonJS
module.exports = factory(require('jquery'));
}
else {
// Browser globals
factory(jQuery);
}
})(function($) {
function Item(element) {
this.$element = $(element);
this.$menu = this.$element.closest('.dropdown-menu');
this.$main = this.$menu.parent();
this.$items = this.$menu.children('.dropdown-submenu');
this.init();
}
Item.prototype = {
init: function() {
this.$element.on('keydown', $.proxy(this, 'keydown'));
},
close: function() {
this.$main.removeClass('open');
this.$items.trigger('hide.bs.submenu');
},
keydown: function(event) {
// 27: Esc
if (event.keyCode == 27) {
event.stopPropagation();
this.close();
this.$main.children('a, button').trigger('focus');
}
}
};
function SubmenuItem(element) {
this.$element = $(element);
this.$main = this.$element.parent();
this.$menu = this.$main.children('.dropdown-menu');
this.$subs = this.$main.siblings('.dropdown-submenu');
this.$items = this.$menu.children('.dropdown-submenu');
this.init();
}
$.extend(SubmenuItem.prototype, Item.prototype, {
init: function() {
this.$element.on({
click: $.proxy(this, 'click'),
keydown: $.proxy(this, 'keydown')
});
this.$main.on('hide.bs.submenu', $.proxy(this, 'hide'));
},
click: function(event) {
// Fix a[href="#"]. For community
event.preventDefault();
event.stopPropagation();
this.toggle();
},
hide: function(event) {
// Stop event bubbling
event.stopPropagation();
this.close();
},
open: function() {
this.$main.addClass('open');
this.$subs.trigger('hide.bs.submenu');
},
toggle: function() {
if (this.$main.hasClass('open')) {
this.close();
}
else {
this.open();
}
},
keydown: function(event) {
// 13: Return, 32: Spacebar
if (event.keyCode == 32) {
// Off vertical scrolling
event.preventDefault();
}
if ($.inArray(event.keyCode, [13, 32]) != -1) {
this.toggle();
}
}
});
function Submenupicker(element) {
this.$element = $(element);
this.$main = this.$element.parent();
this.$menu = this.$main.children('.dropdown-menu');
this.$items = this.$menu.children('.dropdown-submenu');
this.init();
}
Submenupicker.prototype = {
init: function() {
this.$menu.off('keydown.bs.dropdown.data-api');
this.$menu.on('keydown', $.proxy(this, 'itemKeydown'));
this.$menu.find('li > a').each(function() {
new Item(this);
});
this.$menu.find('.dropdown-submenu > a').each(function() {
new SubmenuItem(this);
});
this.$main.on('hidden.bs.dropdown', $.proxy(this, 'hidden'));
},
hidden: function() {
this.$items.trigger('hide.bs.submenu');
},
itemKeydown: function(event) {
// 38: Arrow up, 40: Arrow down
if ($.inArray(event.keyCode, [38, 40]) != -1) {
// Off vertical scrolling
event.preventDefault();
event.stopPropagation();
var $items = this.$menu.find('li:not(.disabled):visible > a');
var index = $items.index(event.target);
if (event.keyCode == 38 && index !== 0) {
index--;
}
else if (event.keyCode == 40 && index !== $items.length - 1) {
index++;
}
else {
return;
}
$items.eq(index).trigger('focus');
}
}
};
// For AMD/Node/CommonJS used elements (optional)
// http://learn.jquery.com/jquery-ui/environments/amd/
return $.fn.submenupicker = function(elements) {
var $elements = this instanceof $ ? this : $(elements);
return $elements.each(function() {
var data = $.data(this, 'bs.submenu');
if (!data) {
data = new Submenupicker(this);
$.data(this, 'bs.submenu', data);
}
});
};
});
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