/**

* jQuery contextMenu v@VERSION - Plugin for simple contextMenu handling

*

* Version: v@VERSION

*

* Authors: Björn Brala (SWIS.nl), Rodney Rehm, Addy Osmani (patches for FF)

* Web: http://swisnl.github.io/jQuery-contextMenu/

*

* Copyright (c) 2011-@YEAR SWIS BV and contributors

*

* Licensed under

* MIT License http://www.opensource.org/licenses/mit-license

*

* Date: @DATE

*/

// jscs:disable

/* jshint ignore:start */

(function (factory) {

if (typeof define === 'function' && define.amd) {

// AMD. Register as anonymous module.

define(['jquery'], factory);

} else if (typeof exports === 'object') {

// Node / CommonJS

factory(require('jquery'));

} else {

// Browser globals.

factory(jQuery);

}

})(function ($) {

'use strict';

// 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 (!$.ui || !$.widget) {

// duck punch $.cleanData like jQueryUI does to get that remove event

$.cleanData = (function (orig) {

return function (elems) {

var events, elem, i;

for (i = 0; elems[i] != null; i++) {

elem = elems[i];

try {

// Only trigger remove when necessary to save time

events = $._data(elem, 'events');

if (events && events.remove) {

$(elem).triggerHandler('remove');

}

// Http://bugs.jquery.com/ticket/8235

} catch (e) {

}

}

orig(elems);

};

})($.cleanData);

}

/* jshint ignore:end */

// jscs:enable

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,

// Flag denoting if a second trigger should close the menu, as long as

// the trigger happened on one of the trigger-element's child nodes.

// This overrides the reposition option.

hideOnSecondTrigger: false,

//ability to select submenu

selectableSubMenu: false,

// Default classname configuration to be able avoid conflicts in frameworks

classNames: {

hover: 'context-menu-hover', // Item hover

disabled: 'context-menu-disabled', // Item disabled

visible: 'context-menu-visible', // Item visible

notSelectable: 'context-menu-not-selectable', // Item not selectable

icon: 'context-menu-icon',

iconEdit: 'context-menu-icon-edit',

iconCut: 'context-menu-icon-cut',

iconCopy: 'context-menu-icon-copy',

iconPaste: 'context-menu-icon-paste',

iconDelete: 'context-menu-icon-delete',

iconAdd: 'context-menu-icon-add',

iconQuit: 'context-menu-icon-quit',

iconLoadingClass: 'context-menu-icon-loading'

},

// 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 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)

var offsetParentOffset = opt.$menu.offsetParent().offset();

offset = {top: y - offsetParentOffset.top, left: x -offsetParentOffset.left};

}

// correct offset if viewport demands it

var bottom = $win.scrollTop() + $win.height(),

right = $win.scrollLeft() + $win.width(),

height = opt.$menu.outerHeight(),

width = opt.$menu.outerWidth();

if (offset.top + height > bottom) {

offset.top -= height;

}

if (offset.top < 0) {

offset.top = 0;

}

if (offset.left + width > right) {

offset.left -= width;

}

if (offset.left < 0) {

offset.left = 0;

}

opt.$menu.css(offset);

},

// position the sub-menu

positionSubmenu: function ($menu) {

if (typeof $menu === 'undefined') {

// When user hovers over item (which has sub items) handle.focusItem will call this.

// but the submenu does not exist yet if opt.items is a promise. just return, will

// call positionSubmenu after promise is completed.

return;

}

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-5',

at: 'right top',

of: this,

collision: 'flipfit fit'

}).css('display', '');

} else {

// determine contextMenu position

var offset = {

top: -9,

left: this.outerWidth() - 5

};

$menu.css(offset);

}

},

// offset to add to zIndex

zIndex: 1,

// show hide animation settings

animation: {

duration: 50,

show: 'slideDown',

hide: 'slideUp'

},

// events

events: {

preShow: $.noop,

show: $.noop,

hide: $.noop,

activated: $.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);

//Show browser context-menu when preShow returns false

if (e.data.events.preShow($this,e) === false) {

return;

}

// 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.data.trigger !== 'demand') && e.originalEvent) {

return;

}

// Let the current contextmenu decide if it should show or not based on its own trigger settings

if (typeof e.mouseButton !== 'undefined' && e.data) {

if (!(e.data.trigger === 'left' && e.mouseButton === 0) && !(e.data.trigger === 'right' && e.mouseButton === 2)) {

// Mouse click is not valid.

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);

}

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,

fakeClick = x === undefined,

target,

offset;

e.preventDefault();

setTimeout(function () {

// If the click is not real, things break: https://github.com/swisnl/jQuery-contextMenu/issues/132

if(fakeClick){

if (root !== null && typeof root !== 'undefined' && root.$menu !== null && typeof root.$menu !== 'undefined') {

root.$menu.trigger('contextmenu:hide');

}

return;

}

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) {

root.$layer.hide();

target = document.elementFromPoint(x - $win.scrollLeft(), y - $win.scrollTop());

// also need to try and focus this element if we're in a contenteditable area,

// as the layer will prevent the browser mouse action we want

if (target.isContentEditable) {

var range = document.createRange(),

sel = window.getSelection();

range.selectNode(target);

range.collapse(true);

sel.removeAllRanges();

sel.addRange(range);

}

$(target).trigger(e);

root.$layer.show();

}

if (root.hideOnSecondTrigger && triggerAction && root.$menu !== null && typeof root.$menu !== 'undefined') {

root.$menu.trigger('contextmenu:hide');

return;

}

if (root.reposition && triggerAction) {

if (document.elementFromPoint) {

if (root.$trigger.is(target)) {

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, button: button});

});

}

if (root !== null && typeof root !== 'undefined' && root.$menu !== null && typeof root.$menu !== 'undefined') {

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') || {};

}

// If the trigger happen on a element that are above the contextmenu do this

if (typeof opt.zIndex === 'undefined') {

opt.zIndex = 0;

}

var targetZIndex = 0;

var getZIndexOfTriggerTarget = function (target) {

if (target.style.zIndex !== '') {

targetZIndex = target.style.zIndex;

} else {

if (target.offsetParent !== null && typeof target.offsetParent !== 'undefined') {

getZIndexOfTriggerTarget(target.offsetParent);

}

else if (target.parentElement !== null && typeof target.parentElement !== 'undefined') {

getZIndexOfTriggerTarget(target.parentElement);

}

}

};

getZIndexOfTriggerTarget(e.target);

// If targetZIndex is heigher then opt.zIndex dont progress any futher.

// This is used to make sure that if you are using a dialog with a input / textarea / contenteditable div

// and its above the contextmenu it wont steal keys events

if (opt.$menu && parseInt(targetZIndex,10) > parseInt(opt.$menu.css("zIndex"),10)) {

return;

}

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();

if (opt.$selected) {

opt.$selected.find('input, textarea, select').blur();

}

if (opt.$menu !== null && typeof opt.$menu !== 'undefined') {

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) {

if (opt.$menu !== null && typeof opt.$menu !== 'undefined') {

opt.$menu.trigger('prevcommand');

}

return;

}

break;

// 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();

if (opt.$selected) {

opt.$selected.find('input, textarea, select').blur();

}

if (opt.$menu !== null && typeof opt.$menu !== 'undefined') {

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 {

if (opt.$menu !== null && typeof opt.$menu !== 'undefined') {

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(.' + opt.classNames.disabled + ', .' + opt.classNames.notSelectable + ')')[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;

}

if (typeof opt.$selected !== 'undefined' && opt.$selected !== null) {

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);

if (opt.$menu !== null && typeof opt.$menu !== 'undefined') {

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();

if (typeof opt.$selected !== 'undefined' && opt.$selected !== null) {

opt.$selected.trigger(e);

}

},

// select previous possible command in menu

prevItem: function (e) {

e.stopPropagation();

var opt = $(this).data('contextMenu') || {};

var root = $(this).data('contextMenuRoot') || {};

// 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 or hidden elements

while ($prev.hasClass(root.classNames.disabled) || $prev.hasClass(root.classNames.notSelectable) || $prev.is(':hidden')) {

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') || {};

var root = $(this).data('contextMenuRoot') || {};

// 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(root.classNames.disabled) || $next.hasClass(root.classNames.notSelectable) || $next.is(':hidden')) {

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 () {

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 () {

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 () {

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('.' + root.classNames.hover).trigger('contextmenu:blur')

.children('.hover').trigger('contextmenu:blur');

if ($this.hasClass(root.classNames.disabled) || $this.hasClass(root.classNames.notSelectable)) {

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)) {

if (typeof root.$selected !== 'undefined' && root.$selected !== null) {

root.$selected.trigger('contextmenu:blur');

}

e.preventDefault();

e.stopImmediatePropagation();

root.$selected = opt.$selected = opt.$node;

return;

}

if(opt && opt.$menu && opt.$menu.hasClass('context-menu-visible')){

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] || $this.is('.' + root.classNames.disabled + ', .context-menu-separator, .' + root.classNames.notSelectable) || ($this.is('.context-menu-submenu') && root.selectableSubMenu === false )) {

return;

}

e.preventDefault();

e.stopImmediatePropagation();

if ($.isFunction(opt.callbacks[key]) && Object.prototype.hasOwnProperty.call(opt.callbacks, key)) {

// item-specific callback

callback = opt.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, e) !== 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;

if ($this.hasClass(root.classNames.disabled) || $this.hasClass(root.classNames.notSelectable)) {

return;

}

$this

.addClass([root.classNames.hover, root.classNames.visible].join(' '))

// select other items and included items

.parent().find('.context-menu-item').not($this)

.removeClass(root.classNames.visible)

.filter('.' + root.classNames.hover)

.trigger('contextmenu:blur');

// remember selected

opt.$selected = root.$selected = $this;

if(opt && opt.$node && opt.$node.hasClass('context-menu-submenu')){

opt.$node.addClass(root.classNames.hover);

}

// 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,

root = data.contextMenuRoot;

if (opt.autoHide) { // for tablets and touch screens this needs to remain

$this.removeClass(root.classNames.visible);

}

$this.removeClass(root.classNames.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

var hasVisibleItems = op.update.call($trigger, opt);

if (hasVisibleItems === false) {

$currentTrigger = null;

return;

}

// position menu

opt.position.call($trigger, opt, x, y);

// make sure we're in front

if (opt.zIndex) {

var additionalZValue = opt.zIndex;

// If opt.zIndex is a function, call the function to get the right zIndex.

if (typeof opt.zIndex === 'function') {

additionalZValue = opt.zIndex.call($trigger, opt);

}

css.zIndex = zindex($trigger) + additionalZValue;

}