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/*!
* jQuery UI Menu 1.10.4
* http://jqueryui.com
*
* Copyright 2014 jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/menu/
*
* Depends:
* jquery.ui.core.js
* jquery.ui.widget.js
* jquery.ui.position.js
*/
(function ($, undefined) {
$.widget("ui.menu", {
version: "1.10.4",
defaultElement: "
",
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
},
_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
.bind("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();
},
"click .ui-state-disabled > a": function (event) {
event.preventDefault();
},
"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.select(event);
// Only set the mouseHandled flag if the event will bubble, see #9469.
if (!event.isPropagationStopped()) {
this.mouseHandled = true;
}
// Open submenu on click
if (target.has(".ui-menu").length) {
this.expand(event);
} else if (!this.element.is(":focus") && $(this.document[ 0 ].activeElement).closest(".ui-menu").length) {
// 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) {
clearTimeout(this.timer);
}
}
}
},
"mouseenter .ui-menu-item": function (event) {
var target = $(event.currentTarget);
// Remove ui-state-active class from siblings of the newly focused menu item
// to avoid a jump caused by adjacent elements both having a class with a border
target.siblings().children(".ui-state-active").removeClass("ui-state-active");
this.focus(event, target);
},
mouseleave: "collapseAll",
"mouseleave .ui-menu": "collapseAll",
focus: function (event, keepActiveItem) {
// If there's already an active item, keep it active
// If not, activate the first item
var item = this.active || this.element.children(".ui-menu-item").eq(0);
if (!keepActiveItem) {
this.focus(event, item);
}
},
blur: function (event) {
this._delay(function () {
if (!$.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, {
click: function (event) {
if (!$(event.target).closest(".ui-menu").length) {
this.collapseAll(event);
}
// Reset the mouseHandled flag
this.mouseHandled = false;
}
});
},
_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");
},
_keydown: function (event) {
var match, prev, character, skip, regex,
preventDefault = true;
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) {
this.previousFilter = character;
this.filterTimer = this._delay(function () {
delete this.previousFilter;
}, 1000);
} else {
delete this.previousFilter;
}
} else {
delete this.previousFilter;
}
}
if (preventDefault) {
event.preventDefault();
}
},
_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: function () {
var menus,
icon = this.options.icons.submenu,
submenus = this.element.find(this.options.menus);
this.element.toggleClass("ui-menu-icons", !!this.element.find(".ui-icon").length);
// 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 = $("")
.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();
}
},
_itemRole: function () {
return {
menu: "menuitem",
listbox: "option"
}[ this.options.role ];
},
_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);
},
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 && event && ( /^mouse/.test(event.type) )) {
this._startOpening(nested);
}
this.activeMenu = item.parent();
this._trigger("focus", event, { item: item });
},
_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);
}
}
},
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 });
},
_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);
},
_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);
},
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
_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");
},
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);
}
},
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);
});
}
},
next: function (event) {
this._move("next", "first", event);
},
previous: function (event) {
this._move("prev", "last", event);
},
isFirstItem: function () {
return this.active && !this.active.prevAll(".ui-menu-item").length;
},
isLastItem: function () {
return this.active && !this.active.nextAll(".ui-menu-item").length;
},
_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);
},
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" ]());
}
},
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());
}
},
_hasScroll: function () {
return this.element.outerHeight() < this.element.prop("scrollHeight");
},
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.
this.active = this.active || $(event.target).closest(".ui-menu-item");
var ui = { item: this.active };
if (!this.active.has(".ui-menu").length) {
this.collapseAll(event, true);
}
this._trigger("select", event, ui);
}
});
}(jQuery));
