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jquery.contextMenu.js
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jquery.contextMenu.js
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/**
* 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 !== null && 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;
}