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jquery.contextMenu.js
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/*!
* jQuery contextMenu - Plugin for simple contextMenu handling
*
* Version: git-master
*
* Authors: Björn Brala (SWIS.nl), Rodney Rehm, Addy Osmani (patches for FF)
* Web: http://swisnl.github.io/jQuery-contextMenu/
*
* Licensed under
* MIT License http://www.opensource.org/licenses/mit-license
* GPL v3 http://opensource.org/licenses/GPL-3.0
*
*/
(function($, undefined){
// TODO: -
// ARIA stuff: menuitem, menuitemcheckbox und menuitemradio
// create <menu> structure if $.support[htmlCommand || htmlMenuitem] and !opt.disableNative
// determine html5 compatibility
$.support.htmlMenuitem = ('HTMLMenuItemElement' in window);
$.support.htmlCommand = ('HTMLCommandElement' in window);
$.support.eventSelectstart = ("onselectstart" in document.documentElement);
/* // should the need arise, test for css user-select
$.support.cssUserSelect = (function(){
var t = false,
e = document.createElement('div');
$.each('Moz|Webkit|Khtml|O|ms|Icab|'.split('|'), function(i, prefix) {
var propCC = prefix + (prefix ? 'U' : 'u') + 'serSelect',
prop = (prefix ? ('-' + prefix.toLowerCase() + '-') : '') + 'user-select';
e.style.cssText = prop + ': text;';
if (e.style[propCC] == 'text') {
t = true;
return false;
}
return true;
});
return t;
})();
*/
if (!$.ui || !$.ui.widget) {
// duck punch $.cleanData like jQueryUI does to get that remove event
// https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.widget.js#L16-24
var _cleanData = $.cleanData;
$.cleanData = function( elems ) {
for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
try {
$( elem ).triggerHandler( "remove" );
// http://bugs.jquery.com/ticket/8235
} catch( e ) {}
}
_cleanData( elems );
};
}
var // currently active contextMenu trigger
$currentTrigger = null,
// is contextMenu initialized with at least one menu?
initialized = false,
// window handle
$win = $(window),
// number of registered menus
counter = 0,
// mapping selector to namespace
namespaces = {},
// mapping namespace to options
menus = {},
// custom command type handlers
types = {},
// default values
defaults = {
// selector of contextMenu trigger
selector: null,
// where to append the menu to
appendTo: null,
// method to trigger context menu ["right", "left", "hover"]
trigger: "right",
// hide menu when mouse leaves trigger / menu elements
autoHide: false,
// ms to wait before showing a hover-triggered context menu
delay: 200,
// flag denoting if a second trigger should simply move (true) or rebuild (false) an open menu
// as long as the trigger happened on one of the trigger-element's child nodes
reposition: true,
// determine position to show menu at
determinePosition: function($menu) {
// position to the lower middle of the trigger element
if ($.ui && $.ui.position) {
// .position() is provided as a jQuery UI utility
// (...and it won't work on hidden elements)
$menu.css('display', 'block').position({
my: "center top",
at: "center bottom",
of: this,
offset: "0 5",
collision: "fit"
}).css('display', 'none');
} else {
// determine contextMenu position
var offset = this.offset();
offset.top += this.outerHeight();
offset.left += this.outerWidth() / 2 - $menu.outerWidth() / 2;
$menu.css(offset);
}
},
// position menu
position: function(opt, x, y) {
var $this = this,
offset;
// determine contextMenu position
if (!x && !y) {
opt.determinePosition.call(this, opt.$menu);
return;
} else if (x === "maintain" && y === "maintain") {
// x and y must not be changed (after re-show on command click)
offset = opt.$menu.position();
} else {
// x and y are given (by mouse event)
offset = {top: y, left: x};
}
// correct offset if viewport demands it
var bottom = $win.scrollTop() + $win.height(),
right = $win.scrollLeft() + $win.width(),
height = opt.$menu.height(),
width = opt.$menu.width();
if (offset.top + height > bottom) {
offset.top -= height;
}
if (offset.top<0) {
offset.top = 0;
}
if (offset.left + width > right) {
offset.left -= width;
}
opt.$menu.css(offset);
},
// position the sub-menu
positionSubmenu: function($menu) {
if ($.ui && $.ui.position) {
// .position() is provided as a jQuery UI utility
// (...and it won't work on hidden elements)
$menu.css('display', 'block').position({
my: "left top",
at: "right top",
of: this,
collision: "flipfit fit"
}).css('display', '');
} else {
// determine contextMenu position
var offset = {
top: 0,
left: this.outerWidth()
};
$menu.css(offset);
}
},
// offset to add to zIndex
zIndex: 1,
// show hide animation settings
animation: {
duration: 50,
show: 'slideDown',
hide: 'slideUp'
},
// events
events: {
show: $.noop,
hide: $.noop
},
// default callback
callback: null,
// list of contextMenu items
items: {}
},
// mouse position for hover activation
hoveract = {
timer: null,
pageX: null,
pageY: null
},
// determine zIndex
zindex = function($t) {
var zin = 0,
$tt = $t;
while (true) {
zin = Math.max(zin, parseInt($tt.css('z-index'), 10) || 0);
$tt = $tt.parent();
if (!$tt || !$tt.length || "html body".indexOf($tt.prop('nodeName').toLowerCase()) > -1 ) {
break;
}
}
return zin;
},
// event handlers
handle = {
// abort anything
abortevent: function(e){
e.preventDefault();
e.stopImmediatePropagation();
},
// contextmenu show dispatcher
contextmenu: function(e) {
var $this = $(this);
// disable actual context-menu if we are using the right mouse button as the trigger
if (e.data.trigger == 'right') {
e.preventDefault();
e.stopImmediatePropagation();
}
// abort native-triggered events unless we're triggering on right click
if (e.data.trigger != 'right' && e.originalEvent) {
return;
}
// abort event if menu is visible for this trigger
if ($this.hasClass('context-menu-active')) {
return;
}
if (!$this.hasClass('context-menu-disabled')) {
// theoretically need to fire a show event at <menu>
// http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#context-menus
// var evt = jQuery.Event("show", { data: data, pageX: e.pageX, pageY: e.pageY, relatedTarget: this });
// e.data.$menu.trigger(evt);
$currentTrigger = $this;
if (e.data.build) {
var built = e.data.build($currentTrigger, e);
// abort if build() returned false
if (built === false) {
return;
}
// dynamically build menu on invocation
e.data = $.extend(true, {}, defaults, e.data, built || {});
// abort if there are no items to display
if (!e.data.items || $.isEmptyObject(e.data.items)) {
// Note: jQuery captures and ignores errors from event handlers
if (window.console) {
(console.error || console.log).call(console, "No items specified to show in contextMenu");
}
throw new Error('No Items specified');
}
// backreference for custom command type creation
e.data.$trigger = $currentTrigger;
op.create(e.data);
}
// show menu
op.show.call($this, e.data, e.pageX, e.pageY);
}
},
// contextMenu left-click trigger
click: function(e) {
e.preventDefault();
e.stopImmediatePropagation();
$(this).trigger($.Event("contextmenu", { data: e.data, pageX: e.pageX, pageY: e.pageY }));
},
// contextMenu right-click trigger
mousedown: function(e) {
// register mouse down
var $this = $(this);
// hide any previous menus
if ($currentTrigger && $currentTrigger.length && !$currentTrigger.is($this)) {
$currentTrigger.data('contextMenu').$menu.trigger('contextmenu:hide');
}
// activate on right click
if (e.button == 2) {
$currentTrigger = $this.data('contextMenuActive', true);
}
},
// contextMenu right-click trigger
mouseup: function(e) {
// show menu
var $this = $(this);
if ($this.data('contextMenuActive') && $currentTrigger && $currentTrigger.length && $currentTrigger.is($this) && !$this.hasClass('context-menu-disabled')) {
e.preventDefault();
e.stopImmediatePropagation();
$currentTrigger = $this;
$this.trigger($.Event("contextmenu", { data: e.data, pageX: e.pageX, pageY: e.pageY }));
}
$this.removeData('contextMenuActive');
},
// contextMenu hover trigger
mouseenter: function(e) {
var $this = $(this),
$related = $(e.relatedTarget),
$document = $(document);
// abort if we're coming from a menu
if ($related.is('.context-menu-list') || $related.closest('.context-menu-list').length) {
return;
}
// abort if a menu is shown
if ($currentTrigger && $currentTrigger.length) {
return;
}
hoveract.pageX = e.pageX;
hoveract.pageY = e.pageY;
hoveract.data = e.data;
$document.on('mousemove.contextMenuShow', handle.mousemove);
hoveract.timer = setTimeout(function() {
hoveract.timer = null;
$document.off('mousemove.contextMenuShow');
$currentTrigger = $this;
$this.trigger($.Event("contextmenu", { data: hoveract.data, pageX: hoveract.pageX, pageY: hoveract.pageY }));
}, e.data.delay );
},
// contextMenu hover trigger
mousemove: function(e) {
hoveract.pageX = e.pageX;
hoveract.pageY = e.pageY;
},
// contextMenu hover trigger
mouseleave: function(e) {
// abort if we're leaving for a menu
var $related = $(e.relatedTarget);
if ($related.is('.context-menu-list') || $related.closest('.context-menu-list').length) {
return;
}
try {
clearTimeout(hoveract.timer);
} catch(e) {}
hoveract.timer = null;
},
// click on layer to hide contextMenu
layerClick: function(e) {
var $this = $(this),
root = $this.data('contextMenuRoot'),
button = e.button,
x = e.pageX,
y = e.pageY,
target,
offset;
e.preventDefault();
e.stopImmediatePropagation();
setTimeout(function() {
var $window;
var triggerAction = ((root.trigger == 'left' && button === 0) || (root.trigger == 'right' && button === 2));
// find the element that would've been clicked, wasn't the layer in the way
if (document.elementFromPoint) {
root.$layer.hide();
target = document.elementFromPoint(x - $win.scrollLeft(), y - $win.scrollTop());
root.$layer.show();
}
if (root.reposition && triggerAction) {
if (document.elementFromPoint) {
if (root.$trigger.is(target) || root.$trigger.has(target).length) {
root.position.call(root.$trigger, root, x, y);
return;
}
} else {
offset = root.$trigger.offset();
$window = $(window);
// while this looks kinda awful, it's the best way to avoid
// unnecessarily calculating any positions
offset.top += $window.scrollTop();
if (offset.top <= e.pageY) {
offset.left += $window.scrollLeft();
if (offset.left <= e.pageX) {
offset.bottom = offset.top + root.$trigger.outerHeight();
if (offset.bottom >= e.pageY) {
offset.right = offset.left + root.$trigger.outerWidth();
if (offset.right >= e.pageX) {
// reposition
root.position.call(root.$trigger, root, x, y);
return;
}
}
}
}
}
}
if (target && triggerAction) {
root.$trigger.one('contextmenu:hidden', function() {
$(target).contextMenu({x: x, y: y});
});
}
root.$menu.trigger('contextmenu:hide');
}, 50);
},
// key handled :hover
keyStop: function(e, opt) {
if (!opt.isInput) {
e.preventDefault();
}
e.stopPropagation();
},
key: function(e) {
var opt = {};
// Only get the data from $currentTrigger if it exists
if ($currentTrigger) {
opt = $currentTrigger.data('contextMenu') || {};
}
switch (e.keyCode) {
case 9:
case 38: // up
handle.keyStop(e, opt);
// if keyCode is [38 (up)] or [9 (tab) with shift]
if (opt.isInput) {
if (e.keyCode == 9 && e.shiftKey) {
e.preventDefault();
opt.$selected && opt.$selected.find('input, textarea, select').blur();
opt.$menu.trigger('prevcommand');
return;
} else if (e.keyCode == 38 && opt.$selected.find('input, textarea, select').prop('type') == 'checkbox') {
// checkboxes don't capture this key
e.preventDefault();
return;
}
} else if (e.keyCode != 9 || e.shiftKey) {
opt.$menu.trigger('prevcommand');
return;
}
// omitting break;
// case 9: // tab - reached through omitted break;
case 40: // down
handle.keyStop(e, opt);
if (opt.isInput) {
if (e.keyCode == 9) {
e.preventDefault();
opt.$selected && opt.$selected.find('input, textarea, select').blur();
opt.$menu.trigger('nextcommand');
return;
} else if (e.keyCode == 40 && opt.$selected.find('input, textarea, select').prop('type') == 'checkbox') {
// checkboxes don't capture this key
e.preventDefault();
return;
}
} else {
opt.$menu.trigger('nextcommand');
return;
}
break;
case 37: // left
handle.keyStop(e, opt);
if (opt.isInput || !opt.$selected || !opt.$selected.length) {
break;
}
if (!opt.$selected.parent().hasClass('context-menu-root')) {
var $parent = opt.$selected.parent().parent();
opt.$selected.trigger('contextmenu:blur');
opt.$selected = $parent;
return;
}
break;
case 39: // right
handle.keyStop(e, opt);
if (opt.isInput || !opt.$selected || !opt.$selected.length) {
break;
}
var itemdata = opt.$selected.data('contextMenu') || {};
if (itemdata.$menu && opt.$selected.hasClass('context-menu-submenu')) {
opt.$selected = null;
itemdata.$selected = null;
itemdata.$menu.trigger('nextcommand');
return;
}
break;
case 35: // end
case 36: // home
if (opt.$selected && opt.$selected.find('input, textarea, select').length) {
return;
} else {
(opt.$selected && opt.$selected.parent() || opt.$menu)
.children(':not(.disabled, .not-selectable)')[e.keyCode == 36 ? 'first' : 'last']()
.trigger('contextmenu:focus');
e.preventDefault();
return;
}
break;
case 13: // enter
handle.keyStop(e, opt);
if (opt.isInput) {
if (opt.$selected && !opt.$selected.is('textarea, select')) {
e.preventDefault();
return;
}
break;
}
opt.$selected && opt.$selected.trigger('mouseup');
return;
case 32: // space
case 33: // page up
case 34: // page down
// prevent browser from scrolling down while menu is visible
handle.keyStop(e, opt);
return;
case 27: // esc
handle.keyStop(e, opt);
opt.$menu.trigger('contextmenu:hide');
return;
default: // 0-9, a-z
var k = (String.fromCharCode(e.keyCode)).toUpperCase();
if (opt.accesskeys && opt.accesskeys[k]) {
// according to the specs accesskeys must be invoked immediately
opt.accesskeys[k].$node.trigger(opt.accesskeys[k].$menu
? 'contextmenu:focus'
: 'mouseup'
);
return;
}
break;
}
// pass event to selected item,
// stop propagation to avoid endless recursion
e.stopPropagation();
opt.$selected && opt.$selected.trigger(e);
},
// select previous possible command in menu
prevItem: function(e) {
e.stopPropagation();
var opt = $(this).data('contextMenu') || {};
// obtain currently selected menu
if (opt.$selected) {
var $s = opt.$selected;
opt = opt.$selected.parent().data('contextMenu') || {};
opt.$selected = $s;
}
var $children = opt.$menu.children(),
$prev = !opt.$selected || !opt.$selected.prev().length ? $children.last() : opt.$selected.prev(),
$round = $prev;
// skip disabled
while ($prev.hasClass('disabled') || $prev.hasClass('not-selectable')) {
if ($prev.prev().length) {
$prev = $prev.prev();
} else {
$prev = $children.last();
}
if ($prev.is($round)) {
// break endless loop
return;
}
}
// leave current
if (opt.$selected) {
handle.itemMouseleave.call(opt.$selected.get(0), e);
}
// activate next
handle.itemMouseenter.call($prev.get(0), e);
// focus input
var $input = $prev.find('input, textarea, select');
if ($input.length) {
$input.focus();
}
},
// select next possible command in menu
nextItem: function(e) {
e.stopPropagation();
var opt = $(this).data('contextMenu') || {};
// obtain currently selected menu
if (opt.$selected) {
var $s = opt.$selected;
opt = opt.$selected.parent().data('contextMenu') || {};
opt.$selected = $s;
}
var $children = opt.$menu.children(),
$next = !opt.$selected || !opt.$selected.next().length ? $children.first() : opt.$selected.next(),
$round = $next;
// skip disabled
while ($next.hasClass('disabled') || $next.hasClass('not-selectable')) {
if ($next.next().length) {
$next = $next.next();
} else {
$next = $children.first();
}
if ($next.is($round)) {
// break endless loop
return;
}
}
// leave current
if (opt.$selected) {
handle.itemMouseleave.call(opt.$selected.get(0), e);
}
// activate next
handle.itemMouseenter.call($next.get(0), e);
// focus input
var $input = $next.find('input, textarea, select');
if ($input.length) {
$input.focus();
}
},
// flag that we're inside an input so the key handler can act accordingly
focusInput: function(e) {
var $this = $(this).closest('.context-menu-item'),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot;
root.$selected = opt.$selected = $this;
root.isInput = opt.isInput = true;
},
// flag that we're inside an input so the key handler can act accordingly
blurInput: function(e) {
var $this = $(this).closest('.context-menu-item'),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot;
root.isInput = opt.isInput = false;
},
// :hover on menu
menuMouseenter: function(e) {
var root = $(this).data().contextMenuRoot;
root.hovering = true;
},
// :hover on menu
menuMouseleave: function(e) {
var root = $(this).data().contextMenuRoot;
if (root.$layer && root.$layer.is(e.relatedTarget)) {
root.hovering = false;
}
},
// :hover done manually so key handling is possible
itemMouseenter: function(e) {
var $this = $(this),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot;
root.hovering = true;
// abort if we're re-entering
if (e && root.$layer && root.$layer.is(e.relatedTarget)) {
e.preventDefault();
e.stopImmediatePropagation();
}
// make sure only one item is selected
(opt.$menu ? opt : root).$menu
.children('.hover').trigger('contextmenu:blur');
if ($this.hasClass('disabled') || $this.hasClass('not-selectable')) {
opt.$selected = null;
return;
}
$this.trigger('contextmenu:focus');
},
// :hover done manually so key handling is possible
itemMouseleave: function(e) {
var $this = $(this),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot;
if (root !== opt && root.$layer && root.$layer.is(e.relatedTarget)) {
root.$selected && root.$selected.trigger('contextmenu:blur');
e.preventDefault();
e.stopImmediatePropagation();
root.$selected = opt.$selected = opt.$node;
return;
}
$this.trigger('contextmenu:blur');
},
// contextMenu item click
itemClick: function(e) {
var $this = $(this),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot,
key = data.contextMenuKey,
callback;
// abort if the key is unknown or disabled or is a menu
if (!opt.items[key] || $this.is('.disabled, .context-menu-submenu, .context-menu-separator, .not-selectable')) {
return;
}
e.preventDefault();
e.stopImmediatePropagation();
if ($.isFunction(root.callbacks[key]) && Object.prototype.hasOwnProperty.call(root.callbacks, key)) {
// item-specific callback
callback = root.callbacks[key];
} else if ($.isFunction(root.callback)) {
// default callback
callback = root.callback;
} else {
// no callback, no action
return;
}
// hide menu if callback doesn't stop that
if (callback.call(root.$trigger, key, root) !== false) {
root.$menu.trigger('contextmenu:hide');
} else if (root.$menu.parent().length) {
op.update.call(root.$trigger, root);
}
},
// ignore click events on input elements
inputClick: function(e) {
e.stopImmediatePropagation();
},
// hide <menu>
hideMenu: function(e, data) {
var root = $(this).data('contextMenuRoot');
op.hide.call(root.$trigger, root, data && data.force);
},
// focus <command>
focusItem: function(e) {
e.stopPropagation();
var $this = $(this),
data = $this.data(),
opt = data.contextMenu,
root = data.contextMenuRoot;
$this.addClass('hover')
.siblings('.hover').trigger('contextmenu:blur');
// remember selected
opt.$selected = root.$selected = $this;
// position sub-menu - do after show so dumb $.ui.position can keep up
if (opt.$node) {
root.positionSubmenu.call(opt.$node, opt.$menu);
}
},
// blur <command>
blurItem: function(e) {
e.stopPropagation();
var $this = $(this),
data = $this.data(),
opt = data.contextMenu;
$this.removeClass('hover');
opt.$selected = null;
}
},
// operations
op = {
show: function(opt, x, y) {
var $trigger = $(this),
css = {};
// hide any open menus
$('#context-menu-layer').trigger('mousedown');
// backreference for callbacks
opt.$trigger = $trigger;
// show event
if (opt.events.show.call($trigger, opt) === false) {
$currentTrigger = null;
return;
}
// create or update context menu
op.update.call($trigger, opt);
// position menu
opt.position.call($trigger, opt, x, y);
// make sure we're in front
if (opt.zIndex) {
css.zIndex = zindex($trigger) + opt.zIndex;
}
// add layer
op.layer.call(opt.$menu, opt, css.zIndex);
// adjust sub-menu zIndexes
opt.$menu.find('ul').css('zIndex', css.zIndex + 1);
// position and show context menu
opt.$menu.css( css )[opt.animation.show](opt.animation.duration, function() {
$trigger.trigger('contextmenu:visible');
});
// make options available and set state
$trigger
.data('contextMenu', opt)
.addClass("context-menu-active");
// register key handler
$(document).off('keydown.contextMenu').on('keydown.contextMenu', handle.key);
// register autoHide handler
if (opt.autoHide) {
// mouse position handler
$(document).on('mousemove.contextMenuAutoHide', function(e) {
// need to capture the offset on mousemove,
// since the page might've been scrolled since activation
var pos = $trigger.offset();
pos.right = pos.left + $trigger.outerWidth();
pos.bottom = pos.top + $trigger.outerHeight();
if (opt.$layer && !opt.hovering && (!(e.pageX >= pos.left && e.pageX <= pos.right) || !(e.pageY >= pos.top && e.pageY <= pos.bottom))) {
// if mouse in menu...
opt.$menu.trigger('contextmenu:hide');
}
});
}
},
hide: function(opt, force) {
var $trigger = $(this);
if (!opt) {
opt = $trigger.data('contextMenu') || {};
}
// hide event
if (!force && opt.events && opt.events.hide.call($trigger, opt) === false) {
return;
}
// remove options and revert state
$trigger
.removeData('contextMenu')
.removeClass("context-menu-active");
if (opt.$layer) {
// keep layer for a bit so the contextmenu event can be aborted properly by opera
setTimeout((function($layer) {
return function(){
$layer.remove();
};
})(opt.$layer), 10);
try {
delete opt.$layer;
} catch(e) {
opt.$layer = null;
}
}
// remove handle
$currentTrigger = null;
// remove selected
opt.$menu.find('.hover').trigger('contextmenu:blur');
opt.$selected = null;
// unregister key and mouse handlers
//$(document).off('.contextMenuAutoHide keydown.contextMenu'); // http://bugs.jquery.com/ticket/10705
$(document).off('.contextMenuAutoHide').off('keydown.contextMenu');
// hide menu
opt.$menu && opt.$menu[opt.animation.hide](opt.animation.duration, function (){
// tear down dynamically built menu after animation is completed.
if (opt.build) {
opt.$menu.remove();
$.each(opt, function(key, value) {
switch (key) {
case 'ns':
case 'selector':
case 'build':
case 'trigger':
return true;
default:
opt[key] = undefined;
try {
delete opt[key];
} catch (e) {}
return true;
}
});
}
setTimeout(function() {
$trigger.trigger('contextmenu:hidden');
}, 10);
});
},
create: function(opt, root) {
if (root === undefined) {
root = opt;
}
// create contextMenu
opt.$menu = $('<ul class="context-menu-list"></ul>').addClass(opt.className || "").data({
'contextMenu': opt,
'contextMenuRoot': root
});
$.each(['callbacks', 'commands', 'inputs'], function(i,k){
opt[k] = {};
if (!root[k]) {
root[k] = {};
}
});
root.accesskeys || (root.accesskeys = {});
// create contextMenu items
$.each(opt.items, function(key, item){
var $t = $('<li class="context-menu-item"></li>').addClass(item.className || ""),
$label = null,
$input = null;
// iOS needs to see a click-event bound to an element to actually
// have the TouchEvents infrastructure trigger the click event
$t.on('click', $.noop);
item.$node = $t.data({
'contextMenu': opt,
'contextMenuRoot': root,
'contextMenuKey': key
});
// register accesskey
// NOTE: the accesskey attribute should be applicable to any element, but Safari5 and Chrome13 still can't do that
if (item.accesskey) {
var aks = splitAccesskey(item.accesskey);
for (var i=0, ak; ak = aks[i]; i++) {
if (!root.accesskeys[ak]) {
root.accesskeys[ak] = item;
item._name = item.name.replace(new RegExp('(' + ak + ')', 'i'), '<span class="context-menu-accesskey">$1</span>');
break;
}
}
}
if (typeof item == "string") {
$t.addClass('context-menu-separator not-selectable');
} else if (item.type && types[item.type]) {
// run custom type handler
types[item.type].call($t, item, opt, root);
// register commands
$.each([opt, root], function(i,k){
k.commands[key] = item;
if ($.isFunction(item.callback)) {
k.callbacks[key] = item.callback;
}
});
} else {
// add label for input
if (item.type == 'html') {
$t.addClass('context-menu-html not-selectable');
} else if (item.type) {
$label = $('<label></label>').appendTo($t);
$('<span></span>').text(item._name || item.name).appendTo($label);
$t.addClass('context-menu-input');
opt.hasTypes = true;
$.each([opt, root], function(i,k){
k.commands[key] = item;
k.inputs[key] = item;
});
} else if (item.items) {
item.type = 'sub';
}