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/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
define([
'jquery',
'jquery/ui'
], function ($) {
'use strict';
$.widget('mage.menu', {
widgetEventPrefix: 'menu',
version: '1.10.1',
defaultElement: '<ul>',
delay: 300,
options: {
icons: {
submenu: 'ui-icon-carat-1-e'
},
menus: 'ul',
position: {
my: 'left top',
at: 'right top'
},
role: 'menu',
// callbacks
blur: null,
focus: null,
select: null
},
/**
* @private
*/
_create: function () {
this.activeMenu = this.element;
// flag used to prevent firing of the click handler
// as the event bubbles up through nested menus
this.mouseHandled = false;
this.element
.uniqueId()
.addClass('ui-menu ui-widget ui-widget-content ui-corner-all')
.toggleClass('ui-menu-icons', !!this.element.find('.ui-icon').length)
.attr({
role: this.options.role,
tabIndex: 0
})
// need to catch all clicks on disabled menu
// not possible through _on
.on('click' + this.eventNamespace, $.proxy(function (event) {
if (this.options.disabled) {
event.preventDefault();
}
}, this));
if (this.options.disabled) {
this.element
.addClass('ui-state-disabled')
.attr('aria-disabled', 'true');
}
this._on({
/**
* Prevent focus from sticking to links inside menu after clicking
* them (focus should always stay on UL during navigation).
*/
'mousedown .ui-menu-item > a': function (event) {
event.preventDefault();
},
/**
* Prevent focus from sticking to links inside menu after clicking
* them (focus should always stay on UL during navigation).
*/
'click .ui-state-disabled > a': function (event) {
event.preventDefault();
},
/**
* @param {jQuery.Event} event
*/
'click .ui-menu-item:has(a)': function (event) {
var target = $(event.target).closest('.ui-menu-item');
if (!this.mouseHandled && target.not('.ui-state-disabled').length) {
this.mouseHandled = true;
this.select(event);
// Open submenu on click
if (target.has('.ui-menu').length) {
this.expand(event);
} else if (!this.element.is(':focus')) {
// Redirect focus to the menu
this.element.trigger('focus', [true]);
// If the active item is on the top level, let it stay active.
// Otherwise, blur the active item since it is no longer visible.
if (this.active && this.active.parents('.ui-menu').length === 1) { //eslint-disable-line
clearTimeout(this.timer);
}
}
}
},
/**
* @param {jQuery.Event} event
*/
'mouseenter .ui-menu-item': function (event) {
var target = $(event.currentTarget);
// Remove ui-state-active class from siblings of the newly focused menu item
// to avoid a jump caused by adjacent elements both having a class with a border
target.siblings().children('.ui-state-active').removeClass('ui-state-active');
this.focus(event, target);
},
mouseleave: 'collapseAll',
'mouseleave .ui-menu': 'collapseAll',
/**
* @param {jQuery.Event} event
* @param {*} keepActiveItem
*/
focus: function (event, keepActiveItem) {
// If there's already an active item, keep it active
// If not, activate the first item
var item = this.active || this.element.children('.ui-menu-item').eq(0);
if (!keepActiveItem) {
this.focus(event, item);
}
},
/**
* @param {jQuery.Event} event
*/
blur: function (event) {
this._delay(function () {
if (!$.contains(this.element[0], this.document[0].activeElement)) {
this.collapseAll(event);
}
});
},
keydown: '_keydown'
});
this.refresh();
// Clicks outside of a menu collapse any open menus
this._on(this.document, {
/**
* @param {jQuery.Event} event
*/
click: function (event) {
if (!$(event.target).closest('.ui-menu').length) {
this.collapseAll(event);
}
// Reset the mouseHandled flag
this.mouseHandled = false;
}
});
},
/**
* @private
*/
_destroy: function () {
// Destroy (sub)menus
this.element
.removeAttr('aria-activedescendant')
.find('.ui-menu').addBack()
.removeClass('ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons')
.removeAttr('role')
.removeAttr('tabIndex')
.removeAttr('aria-labelledby')
.removeAttr('aria-expanded')
.removeAttr('aria-hidden')
.removeAttr('aria-disabled')
.removeUniqueId()
.show();
// Destroy menu items
this.element.find('.ui-menu-item')
.removeClass('ui-menu-item')
.removeAttr('role')
.removeAttr('aria-disabled')
.children('a')
.removeUniqueId()
.removeClass('ui-corner-all ui-state-hover')
.removeAttr('tabIndex')
.removeAttr('role')
.removeAttr('aria-haspopup')
.children().each(function () {
var elem = $(this);
if (elem.data('ui-menu-submenu-carat')) {
elem.remove();
}
});
// Destroy menu dividers
this.element.find('.ui-menu-divider').removeClass('ui-menu-divider ui-widget-content');
},
/**
* @param {jQuery.Event} event
* @private
*/
_keydown: function (event) {
var match, prev, character, skip, regex,
preventDefault = true;
/**
* @param {String} value
*/
function escape(value) {
return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, '\\$&');
}
switch (event.keyCode) {
case $.ui.keyCode.PAGE_UP:
this.previousPage(event);
break;
case $.ui.keyCode.PAGE_DOWN:
this.nextPage(event);
break;
case $.ui.keyCode.HOME:
this._move('first', 'first', event);
break;
case $.ui.keyCode.END:
this._move('last', 'last', event);
break;
case $.ui.keyCode.UP:
this.previous(event);
break;
case $.ui.keyCode.DOWN:
this.next(event);
break;
case $.ui.keyCode.LEFT:
this.collapse(event);
break;
case $.ui.keyCode.RIGHT:
if (this.active && !this.active.is('.ui-state-disabled')) {
this.expand(event);
}
break;
case $.ui.keyCode.ENTER:
case $.ui.keyCode.SPACE:
this._activate(event);
break;
case $.ui.keyCode.ESCAPE:
this.collapse(event);
break;
default:
preventDefault = false;
prev = this.previousFilter || '';
character = String.fromCharCode(event.keyCode);
skip = false;
clearTimeout(this.filterTimer);
if (character === prev) {
skip = true;
} else {
character = prev + character;
}
regex = new RegExp('^' + escape(character), 'i');
match = this.activeMenu.children('.ui-menu-item').filter(function () {
return regex.test($(this).children('a').text());
});
match = skip && match.index(this.active.next()) !== -1 ?
this.active.nextAll('.ui-menu-item') :
match;
// If no matches on the current filter, reset to the last character pressed
// to move down the menu to the first item that starts with that character
if (!match.length) {
character = String.fromCharCode(event.keyCode);
regex = new RegExp('^' + escape(character), 'i');
match = this.activeMenu.children('.ui-menu-item').filter(function () {
return regex.test($(this).children('a').text());
});
}
if (match.length) {
this.focus(event, match);
if (match.length > 1) { //eslint-disable-line max-depth
this.previousFilter = character;
this.filterTimer = this._delay(function () {
delete this.previousFilter;
}, 1000);
} else {
delete this.previousFilter;
}
} else {
delete this.previousFilter;
}
}
if (preventDefault) {
event.preventDefault();
}
},
/**
* @param {jQuery.Event} event
* @private
*/
_activate: function (event) {
if (!this.active.is('.ui-state-disabled')) {
if (this.active.children('a[aria-haspopup="true"]').length) {
this.expand(event);
} else {
this.select(event);
}
}
},
/**
* Refresh.
*/
refresh: function () {
var menus,
icon = this.options.icons.submenu,
submenus = this.element.find(this.options.menus);
// Initialize nested menus
submenus.filter(':not(.ui-menu)')
.addClass('ui-menu ui-widget ui-widget-content ui-corner-all')
.hide()
.attr({
role: this.options.role,
'aria-hidden': 'true',
'aria-expanded': 'false'
})
.each(function () {
var menu = $(this),
item = menu.prev('a'),
submenuCarat = $('<span>')
.addClass('ui-menu-icon ui-icon ' + icon)
.data('ui-menu-submenu-carat', true);
item
.attr('aria-haspopup', 'true')
.prepend(submenuCarat);
menu.attr('aria-labelledby', item.attr('id'));
});
menus = submenus.add(this.element);
// Don't refresh list items that are already adapted
menus.children(':not(.ui-menu-item):has(a)')
.addClass('ui-menu-item')
.attr('role', 'presentation')
.children('a')
.uniqueId()
.addClass('ui-corner-all')
.attr({
tabIndex: -1,
role: this._itemRole()
});
// Initialize unlinked menu-items containing spaces and/or dashes only as dividers
menus.children(':not(.ui-menu-item)').each(function () {
var item = $(this);
// hyphen, em dash, en dash
if (!/[^\-\u2014\u2013\s]/.test(item.text())) {
item.addClass('ui-widget-content ui-menu-divider');
}
});
// Add aria-disabled attribute to any disabled menu item
menus.children('.ui-state-disabled').attr('aria-disabled', 'true');
// If the active item has been removed, blur the menu
if (this.active && !$.contains(this.element[0], this.active[0])) {
this.blur();
}
},
/**
* @return {*}
* @private
*/
_itemRole: function () {
return {
menu: 'menuitem',
listbox: 'option'
}[this.options.role];
},
/**
* @param {String} key
* @param {*} value
* @private
*/
_setOption: function (key, value) {
if (key === 'icons') {
this.element.find('.ui-menu-icon')
.removeClass(this.options.icons.submenu)
.addClass(value.submenu);
}
this._super(key, value);
},
/**
* @param {jQuery.Event} event
* @param {Object} item
*/
focus: function (event, item) {
var nested, focused;
this.blur(event, event && event.type === 'focus');
this._scrollIntoView(item);
this.active = item.first();
focused = this.active.children('a').addClass('ui-state-focus');
// Only update aria-activedescendant if there's a role
// otherwise we assume focus is managed elsewhere
if (this.options.role) {
this.element.attr('aria-activedescendant', focused.attr('id'));
}
// Highlight active parent menu item, if any
this.active
.parent()
.closest('.ui-menu-item')
.children('a:first')
.addClass('ui-state-active');
if (event && event.type === 'keydown') {
this._close();
} else {
this.timer = this._delay(function () {
this._close();
}, this.delay);
}
nested = item.children('.ui-menu');
if (nested.length && /^mouse/.test(event.type)) {
this._startOpening(nested);
}
this.activeMenu = item.parent();
this._trigger('focus', event, {
item: item
});
},
/**
* @param {Object} item
* @private
*/
_scrollIntoView: function (item) {
var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
if (this._hasScroll()) {
borderTop = parseFloat($.css(this.activeMenu[0], 'borderTopWidth')) || 0;
paddingTop = parseFloat($.css(this.activeMenu[0], 'paddingTop')) || 0;
offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
scroll = this.activeMenu.scrollTop();
elementHeight = this.activeMenu.height();
itemHeight = item.height();
if (offset < 0) {
this.activeMenu.scrollTop(scroll + offset);
} else if (offset + itemHeight > elementHeight) {
this.activeMenu.scrollTop(scroll + offset - elementHeight + itemHeight);
}
}
},
/**
* @param {jQuery.Event} event
* @param {*} fromFocus
*/
blur: function (event, fromFocus) {
if (!fromFocus) {
clearTimeout(this.timer);
}
if (!this.active) {
return;
}
this.active.children('a').removeClass('ui-state-focus');
this.active = null;
this._trigger('blur', event, {
item: this.active
});
},
/**
* @param {*} submenu
* @private
*/
_startOpening: function (submenu) {
clearTimeout(this.timer);
// Don't open if already open fixes a Firefox bug that caused a .5 pixel
// shift in the submenu position when mousing over the carat icon
if (submenu.attr('aria-hidden') !== 'true') {
return;
}
this.timer = this._delay(function () {
this._close();
this._open(submenu);
}, this.delay);
},
/**
* @param {*} submenu
* @private
*/
_open: function (submenu) {
var position = $.extend({
of: this.active
}, this.options.position);
clearTimeout(this.timer);
this.element.find('.ui-menu').not(submenu.parents('.ui-menu'))
.hide()
.attr('aria-hidden', 'true');
submenu
.show()
.removeAttr('aria-hidden')
.attr('aria-expanded', 'true')
.position(position);
},
/**
* @param {jQuery.Event} event
* @param {*} all
*/
collapseAll: function (event, all) {
clearTimeout(this.timer);
this.timer = this._delay(function () {
// If we were passed an event, look for the submenu that contains the event
var currentMenu = all ? this.element :
$(event && event.target).closest(this.element.find('.ui-menu'));
// If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
if (!currentMenu.length) {
currentMenu = this.element;
}
this._close(currentMenu);
this.blur(event);
this.activeMenu = currentMenu;
}, this.delay);
},
// With no arguments, closes the currently active menu - if nothing is active
// it closes all menus. If passed an argument, it will search for menus BELOW
/**
* With no arguments, closes the currently active menu - if nothing is active
* it closes all menus. If passed an argument, it will search for menus BELOW.
*
* @param {*} startMenu
* @private
*/
_close: function (startMenu) {
if (!startMenu) {
startMenu = this.active ? this.active.parent() : this.element;
}
startMenu
.find('.ui-menu')
.hide()
.attr('aria-hidden', 'true')
.attr('aria-expanded', 'false')
.end()
.find('a.ui-state-active')
.removeClass('ui-state-active');
},
/**
* @param {jQuery.Event} event
*/
collapse: function (event) {
var newItem = this.active &&
this.active.parent().closest('.ui-menu-item', this.element);
if (newItem && newItem.length) {
this._close();
this.focus(event, newItem);
}
},
/**
* @param {jQuery.Event} event
*/
expand: function (event) {
var newItem = this.active &&
this.active
.children('.ui-menu ')
.children('.ui-menu-item')
.first();
if (newItem && newItem.length) {
this._open(newItem.parent());
// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
this._delay(function () {
this.focus(event, newItem);
});
}
},
/**
* @param {jQuery.Event} event
*/
next: function (event) {
this._move('next', 'first', event);
},
/**
* @param {jQuery.Event} event
*/
previous: function (event) {
this._move('prev', 'last', event);
},
/**
* @return {null|Boolean}
*/
isFirstItem: function () {
return this.active && !this.active.prevAll('.ui-menu-item').length;
},
/**
* @return {null|Boolean}
*/
isLastItem: function () {
return this.active && !this.active.nextAll('.ui-menu-item').length;
},
/**
* @param {*} direction
* @param {*} filter
* @param {jQuery.Event} event
* @private
*/
_move: function (direction, filter, event) {
var next;
if (this.active) {
if (direction === 'first' || direction === 'last') {
next = this.active
[direction === 'first' ? 'prevAll' : 'nextAll']('.ui-menu-item')
.eq(-1);
} else {
next = this.active
[direction + 'All']('.ui-menu-item')
.eq(0);
}
}
if (!next || !next.length || !this.active) {
next = this.activeMenu.children('.ui-menu-item')[filter]();
}
this.focus(event, next);
},
/**
* @param {jQuery.Event} event
*/
nextPage: function (event) {
var item, base, height;
if (!this.active) {
this.next(event);
return;
}
if (this.isLastItem()) {
return;
}
if (this._hasScroll()) {
base = this.active.offset().top;
height = this.element.height();
this.active.nextAll('.ui-menu-item').each(function () {
item = $(this);
return item.offset().top - base - height < 0;
});
this.focus(event, item);
} else {
this.focus(event, this.activeMenu.children('.ui-menu-item')
[!this.active ? 'first' : 'last']());
}
},
/**
* @param {jQuery.Event} event
*/
previousPage: function (event) {
var item, base, height;
if (!this.active) {
this.next(event);
return;
}
if (this.isFirstItem()) {
return;
}
if (this._hasScroll()) {
base = this.active.offset().top;
height = this.element.height();
this.active.prevAll('.ui-menu-item').each(function () {
item = $(this);
return item.offset().top - base + height > 0;
});
this.focus(event, item);
} else {
this.focus(event, this.activeMenu.children('.ui-menu-item').first());
}
},
/**
* @return {Boolean}
* @private
*/
_hasScroll: function () {
return this.element.outerHeight() < this.element.prop('scrollHeight');
},
/**
* @param {jQuery.Event} event
*/
select: function (event) {
// TODO: It should never be possible to not have an active item at this
// point, but the tests don't trigger mouseenter before click.
var ui;
this.active = this.active || $(event.target).closest('.ui-menu-item');
ui = {
item: this.active
};
if (!this.active.has('.ui-menu').length) {
this.collapseAll(event, true);
}
this._trigger('select', event, ui);
}
});
return $.mage.menu;
});