Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/*!
* SmartMenus jQuery Plugin Keyboard Addon - v0.3.1 - November 1, 2016
* http://www.smartmenus.org/
*
* Copyright Vasil Dinkov, Vadikom Web Ltd.
* http://vadikom.com
*
* Licensed MIT
*/
(function(factory) {
if (typeof define === 'function' && define.amd) {
// AMD
define(['jquery', 'jquery.smartmenus'], factory);
} else if (typeof module === 'object' && typeof module.exports === 'object') {
// CommonJS
module.exports = factory(require('jquery'));
} else {
// Global jQuery
factory(jQuery);
}
} (function($) {
function getFirstItemLink($ul) {
// make sure we also allow the link to be nested deeper inside the LI's (e.g. in a heading)
return $ul.find('> li > a:not(.disabled), > li > :not(ul) a:not(.disabled)').eq(0);
}
function getLastItemLink($ul) {
return $ul.find('> li > a:not(.disabled), > li > :not(ul) a:not(.disabled)').eq(-1);
}
function getNextItemLink($li, noLoop) {
var $a = $li.nextAll('li').find('> a:not(.disabled), > :not(ul) a:not(.disabled)').eq(0);
return noLoop || $a.length ? $a : getFirstItemLink($li.parent());
}
function getPreviousItemLink($li, noLoop) {
// bug workaround: elements are returned in reverse order just in jQuery 1.8.x
var $a = $li.prevAll('li').find('> a:not(.disabled), > :not(ul) a:not(.disabled)').eq(/^1\.8\./.test($.fn.jquery) ? 0 : -1);
return noLoop || $a.length ? $a : getLastItemLink($li.parent());
}
// jQuery's .focus() is unreliable in some versions, so we're going to call the links' native JS focus method
$.fn.focusSM = function() {
if (this.length && this[0].focus) {
this[0].focus();
}
return this;
};
$.extend($.SmartMenus.Keyboard = {}, {
docKeydown: function(e) {
var keyCode = e.keyCode;
if (!/^(37|38|39|40)$/.test(keyCode)) {
return;
}
var $root = $(this),
obj = $root.data('smartmenus'),
$target = $(e.target);
// exit if this is an A inside a mega drop-down
if (!obj || !$target.is('a') || !obj.handleItemEvents($target)) {
return;
}
var $li = $target.closest('li'),
$ul = $li.parent(),
level = $ul.dataSM('level');
// swap left & right keys
if ($root.hasClass('sm-rtl')) {
if (keyCode == 37) {
keyCode = 39;
} else if (keyCode == 39) {
keyCode = 37;
}
}
switch (keyCode) {
case 37: // Left
if (obj.isCollapsible()) {
break;
}
if (level > 2 || level == 2 && $root.hasClass('sm-vertical')) {
obj.activatedItems[level - 2].focusSM();
// move to previous non-disabled parent item (make sure we cycle so it might be the last item)
} else if (!$root.hasClass('sm-vertical')) {
getPreviousItemLink((obj.activatedItems[0] || $target).closest('li')).focusSM();
}
break;
case 38: // Up
if (obj.isCollapsible()) {
var $firstItem;
// if this is the first item of a sub menu, move to the parent item
if (level > 1 && ($firstItem = getFirstItemLink($ul)).length && $target[0] == $firstItem[0]) {
obj.activatedItems[level - 2].focusSM();
} else {
getPreviousItemLink($li).focusSM();
}
} else {
if (level == 1 && !$root.hasClass('sm-vertical') && obj.opts.bottomToTopSubMenus) {
if (!obj.activatedItems[0] && $target.dataSM('sub')) {
if (obj.opts.showOnClick) {
obj.clickActivated = true;
}
obj.itemActivate($target);
if ($target.dataSM('sub').is(':visible')) {
obj.focusActivated = true;
}
}
if (obj.activatedItems[0] && obj.activatedItems[0].dataSM('sub') && obj.activatedItems[0].dataSM('sub').is(':visible') && !obj.activatedItems[0].dataSM('sub').hasClass('mega-menu')) {
getLastItemLink(obj.activatedItems[0].dataSM('sub')).focusSM();
}
} else if (level > 1 || $root.hasClass('sm-vertical')) {
getPreviousItemLink($li).focusSM();
}
}
break;
case 39: // Right
if (obj.isCollapsible()) {
break;
}
if (level == 1 && $root.hasClass('sm-vertical')) {
if (!obj.activatedItems[0] && $target.dataSM('sub')) {
if (obj.opts.showOnClick) {
obj.clickActivated = true;
}
obj.itemActivate($target);
if ($target.dataSM('sub').is(':visible')) {
obj.focusActivated = true;
}
}
if (obj.activatedItems[0] && obj.activatedItems[0].dataSM('sub') && obj.activatedItems[0].dataSM('sub').is(':visible') && !obj.activatedItems[0].dataSM('sub').hasClass('mega-menu')) {
getFirstItemLink(obj.activatedItems[0].dataSM('sub')).focusSM();
}
// move to next non-disabled parent item (make sure we cycle so it might be the last item)
} else if ((level == 1 || obj.activatedItems[level - 1] && (!obj.activatedItems[level - 1].dataSM('sub') || !obj.activatedItems[level - 1].dataSM('sub').is(':visible') || obj.activatedItems[level - 1].dataSM('sub').hasClass('mega-menu'))) && !$root.hasClass('sm-vertical')) {
getNextItemLink((obj.activatedItems[0] || $target).closest('li')).focusSM();
} else if (obj.activatedItems[level - 1] && obj.activatedItems[level - 1].dataSM('sub') && obj.activatedItems[level - 1].dataSM('sub').is(':visible') && !obj.activatedItems[level - 1].dataSM('sub').hasClass('mega-menu')) {
getFirstItemLink(obj.activatedItems[level - 1].dataSM('sub')).focusSM();
}
break;
case 40: // Down
if (obj.isCollapsible()) {
var $firstSubItem,
$lastItem;
// move to sub menu if appropriate
if (obj.activatedItems[level - 1] && obj.activatedItems[level - 1].dataSM('sub') && obj.activatedItems[level - 1].dataSM('sub').is(':visible') && !obj.activatedItems[level - 1].dataSM('sub').hasClass('mega-menu') && ($firstSubItem = getFirstItemLink(obj.activatedItems[level - 1].dataSM('sub'))).length) {
$firstSubItem.focusSM();
// if this is the last item of a sub menu, move to the next parent item
} else if (level > 1 && ($lastItem = getLastItemLink($ul)).length && $target[0] == $lastItem[0]) {
var $parentItem = obj.activatedItems[level - 2].closest('li'),
$nextParentItem = null;
while ($parentItem.is('li') && !($nextParentItem = getNextItemLink($parentItem, true)).length) {
$parentItem = $parentItem.parent().parent();
}
if ($nextParentItem.length) {
$nextParentItem.focusSM();
} else {
getFirstItemLink($root).focusSM();
}
} else {
getNextItemLink($li).focusSM();
}
} else {
if (level == 1 && !$root.hasClass('sm-vertical') && !obj.opts.bottomToTopSubMenus) {
if (!obj.activatedItems[0] && $target.dataSM('sub')) {
if (obj.opts.showOnClick) {
obj.clickActivated = true;
}
obj.itemActivate($target);
if ($target.dataSM('sub').is(':visible')) {
obj.focusActivated = true;
}
}
if (obj.activatedItems[0] && obj.activatedItems[0].dataSM('sub') && obj.activatedItems[0].dataSM('sub').is(':visible') && !obj.activatedItems[0].dataSM('sub').hasClass('mega-menu')) {
getFirstItemLink(obj.activatedItems[0].dataSM('sub')).focusSM();
}
} else if (level > 1 || $root.hasClass('sm-vertical')) {
getNextItemLink($li).focusSM();
}
}
break;
}
e.stopPropagation();
e.preventDefault();
}
});
// hook it
$(document).delegate('ul.sm, ul.navbar-nav:not([data-sm-skip])', 'keydown.smartmenus', $.SmartMenus.Keyboard.docKeydown);
$.extend($.SmartMenus.prototype, {
keyboardSetHotkey: function(keyCode, modifiers) {
var self = this;
$(document).bind('keydown.smartmenus' + this.rootId, function(e) {
if (keyCode == e.keyCode) {
var procede = true;
if (modifiers) {
if (typeof modifiers == 'string') {
modifiers = [modifiers];
}
$.each(['ctrlKey', 'shiftKey', 'altKey', 'metaKey'], function(index, value) {
if ($.inArray(value, modifiers) >= 0 && !e[value] || $.inArray(value, modifiers) < 0 && e[value]) {
procede = false;
return false;
}
});
}
if (procede) {
getFirstItemLink(self.$root).focusSM();
e.stopPropagation();
e.preventDefault();
}
}
});
}
});
return $;
}));