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/*!

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* jQuery UI Menu 1.13.3

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* https://jqueryui.com

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* Copyright OpenJS Foundation and other contributors

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* Released under the MIT license.

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* https://jquery.org/license

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//>>label: Menu

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//>>group: Widgets

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//>>description: Creates nestable menus.

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//>>docs: https://api.jqueryui.com/menu/

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//>>demos: https://jqueryui.com/menu/

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//>>css.structure: ../../themes/base/core.css

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//>>css.structure: ../../themes/base/menu.css

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//>>css.theme: ../../themes/base/theme.css

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( function( factory ) {

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"use strict";

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

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// AMD. Register as an anonymous module.

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define( [

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"jquery",

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"../keycode",

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"../position",

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"../safe-active-element",

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"../unique-id",

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"../version",

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"../widget"

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], factory );

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} else {

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// Browser globals

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factory( jQuery );

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}

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} )( function( $ ) {

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"use strict";

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return $.widget( "ui.menu", {

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version: "1.13.3",

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defaultElement: "<ul>",

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delay: 300,

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options: {

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icons: {

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submenu: "ui-icon-caret-1-e"

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items: "> *",

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menus: "ul",

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position: {

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my: "left top",

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at: "right top"

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role: "menu",

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// Callbacks

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blur: null,

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focus: null,

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select: null

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_create: function() {

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this.activeMenu = this.element;

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// Flag used to prevent firing of the click handler

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// as the event bubbles up through nested menus

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this.mouseHandled = false;

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this.lastMousePosition = { x: null, y: null };

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this.element

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.uniqueId()

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.attr( {

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role: this.options.role,

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tabIndex: 0

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} );

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this._addClass( "ui-menu", "ui-widget ui-widget-content" );

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this._on( {

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// Prevent focus from sticking to links inside menu after clicking

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// them (focus should always stay on UL during navigation).

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"mousedown .ui-menu-item": function( event ) {

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event.preventDefault();

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this._activateItem( event );

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"click .ui-menu-item": function( event ) {

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var target = $( event.target );

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var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) );

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if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {

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this.select( event );

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// Only set the mouseHandled flag if the event will bubble, see #9469.

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if ( !event.isPropagationStopped() ) {

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this.mouseHandled = true;

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}

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// Open submenu on click

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if ( target.has( ".ui-menu" ).length ) {

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this.expand( event );

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} else if ( !this.element.is( ":focus" ) &&

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active.closest( ".ui-menu" ).length ) {

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// Redirect focus to the menu

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this.element.trigger( "focus", [ true ] );

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// If the active item is on the top level, let it stay active.

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// Otherwise, blur the active item since it is no longer visible.

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if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {

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clearTimeout( this.timer );

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}

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}

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}

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"mouseenter .ui-menu-item": "_activateItem",

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"mousemove .ui-menu-item": "_activateItem",

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mouseleave: "collapseAll",

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"mouseleave .ui-menu": "collapseAll",

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focus: function( event, keepActiveItem ) {

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// If there's already an active item, keep it active

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// If not, activate the first item

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var item = this.active || this._menuItems().first();

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if ( !keepActiveItem ) {

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this.focus( event, item );

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}

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blur: function( event ) {

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this._delay( function() {

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var notContained = !$.contains(

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this.element[ 0 ],

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$.ui.safeActiveElement( this.document[ 0 ] )

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);

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if ( notContained ) {

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this.collapseAll( event );

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}

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} );

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keydown: "_keydown"

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} );

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this.refresh();

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// Clicks outside of a menu collapse any open menus

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this._on( this.document, {

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click: function( event ) {

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if ( this._closeOnDocumentClick( event ) ) {

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this.collapseAll( event, true );

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}

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// Reset the mouseHandled flag

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this.mouseHandled = false;

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}

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} );

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_activateItem: function( event ) {

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// Ignore mouse events while typeahead is active, see #10458.

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// Prevents focusing the wrong item when typeahead causes a scroll while the mouse

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// is over an item in the menu

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if ( this.previousFilter ) {

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return;

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}

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// If the mouse didn't actually move, but the page was scrolled, ignore the event (#9356)

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if ( event.clientX === this.lastMousePosition.x &&

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event.clientY === this.lastMousePosition.y ) {

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return;

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}

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this.lastMousePosition = {

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x: event.clientX,

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y: event.clientY

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};

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var actualTarget = $( event.target ).closest( ".ui-menu-item" ),

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target = $( event.currentTarget );

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// Ignore bubbled events on parent items, see #11641

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if ( actualTarget[ 0 ] !== target[ 0 ] ) {

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return;

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}

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// If the item is already active, there's nothing to do

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if ( target.is( ".ui-state-active" ) ) {

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return;

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}

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// Remove ui-state-active class from siblings of the newly focused menu item

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// to avoid a jump caused by adjacent elements both having a class with a border

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this._removeClass( target.siblings().children( ".ui-state-active" ),

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null, "ui-state-active" );

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this.focus( event, target );

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_destroy: function() {

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var items = this.element.find( ".ui-menu-item" )

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.removeAttr( "role aria-disabled" ),

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submenus = items.children( ".ui-menu-item-wrapper" )

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.removeUniqueId()

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.removeAttr( "tabIndex role aria-haspopup" );

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// Destroy (sub)menus

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this.element

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.removeAttr( "aria-activedescendant" )

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.find( ".ui-menu" ).addBack()

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.removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " +

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"tabIndex" )

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.removeUniqueId()

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.show();

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submenus.children().each( function() {

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var elem = $( this );

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if ( elem.data( "ui-menu-submenu-caret" ) ) {

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elem.remove();

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}

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} );

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_keydown: function( event ) {

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var match, prev, character, skip,

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preventDefault = true;

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switch ( event.keyCode ) {

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case $.ui.keyCode.PAGE_UP:

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this.previousPage( event );

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break;

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case $.ui.keyCode.PAGE_DOWN:

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this.nextPage( event );

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break;

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case $.ui.keyCode.HOME:

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this._move( "first", "first", event );

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break;

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case $.ui.keyCode.END:

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this._move( "last", "last", event );

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break;

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case $.ui.keyCode.UP:

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this.previous( event );

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break;

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case $.ui.keyCode.DOWN:

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this.next( event );

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break;

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case $.ui.keyCode.LEFT:

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this.collapse( event );

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break;

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case $.ui.keyCode.RIGHT:

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if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {

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this.expand( event );

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}

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break;

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case $.ui.keyCode.ENTER:

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case $.ui.keyCode.SPACE:

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this._activate( event );

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break;

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case $.ui.keyCode.ESCAPE:

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this.collapse( event );

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break;

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default:

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preventDefault = false;

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prev = this.previousFilter || "";

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skip = false;

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// Support number pad values

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character = event.keyCode >= 96 && event.keyCode <= 105 ?

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( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode );

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clearTimeout( this.filterTimer );

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if ( character === prev ) {

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skip = true;

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} else {

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character = prev + character;

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}

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match = this._filterMenuItems( character );

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match = skip && match.index( this.active.next() ) !== -1 ?

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this.active.nextAll( ".ui-menu-item" ) :

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match;

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// If no matches on the current filter, reset to the last character pressed

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// to move down the menu to the first item that starts with that character

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if ( !match.length ) {

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character = String.fromCharCode( event.keyCode );

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match = this._filterMenuItems( character );

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}

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if ( match.length ) {

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this.focus( event, match );

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this.previousFilter = character;

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this.filterTimer = this._delay( function() {

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delete this.previousFilter;

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}, 1000 );

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} else {

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delete this.previousFilter;

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}

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}

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if ( preventDefault ) {

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event.preventDefault();

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}

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_activate: function( event ) {

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if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {

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if ( this.active.children( "[aria-haspopup='true']" ).length ) {

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this.expand( event );

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} else {

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this.select( event );

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}

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}

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refresh: function() {

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var menus, items, newSubmenus, newItems, newWrappers,

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that = this,

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icon = this.options.icons.submenu,

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submenus = this.element.find( this.options.menus );

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this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length );

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// Initialize nested menus

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newSubmenus = submenus.filter( ":not(.ui-menu)" )

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.hide()

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.attr( {

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role: this.options.role,

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"aria-hidden": "true",

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"aria-expanded": "false"

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} )

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.each( function() {

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var menu = $( this ),

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item = menu.prev(),

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submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true );

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that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon );

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item

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.attr( "aria-haspopup", "true" )

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.prepend( submenuCaret );

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menu.attr( "aria-labelledby", item.attr( "id" ) );

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} );

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this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" );

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menus = submenus.add( this.element );

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items = menus.find( this.options.items );

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// Initialize menu-items containing spaces and/or dashes only as dividers

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items.not( ".ui-menu-item" ).each( function() {

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var item = $( this );

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if ( that._isDivider( item ) ) {

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that._addClass( item, "ui-menu-divider", "ui-widget-content" );

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}

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} );

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// Don't refresh list items that are already adapted

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newItems = items.not( ".ui-menu-item, .ui-menu-divider" );

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newWrappers = newItems.children()

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.not( ".ui-menu" )

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.uniqueId()

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.attr( {

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tabIndex: -1,

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role: this._itemRole()

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} );

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this._addClass( newItems, "ui-menu-item" )

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._addClass( newWrappers, "ui-menu-item-wrapper" );

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// Add aria-disabled attribute to any disabled menu item

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items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );

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// If the active item has been removed, blur the menu

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if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {

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this.blur();

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}

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_itemRole: function() {

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return {

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menu: "menuitem",

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listbox: "option"

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}[ this.options.role ];

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_setOption: function( key, value ) {

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if ( key === "icons" ) {

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var icons = this.element.find( ".ui-menu-icon" );

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this._removeClass( icons, null, this.options.icons.submenu )

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._addClass( icons, null, value.submenu );

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}

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this._super( key, value );

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_setOptionDisabled: function( value ) {

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this._super( value );

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this.element.attr( "aria-disabled", String( value ) );

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this._toggleClass( null, "ui-state-disabled", !!value );

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focus: function( event, item ) {

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var nested, focused, activeParent;

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this.blur( event, event && event.type === "focus" );

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this._scrollIntoView( item );

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this.active = item.first();

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focused = this.active.children( ".ui-menu-item-wrapper" );

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this._addClass( focused, null, "ui-state-active" );

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// Only update aria-activedescendant if there's a role

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// otherwise we assume focus is managed elsewhere

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if ( this.options.role ) {

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this.element.attr( "aria-activedescendant", focused.attr( "id" ) );

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}

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// Highlight active parent menu item, if any

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activeParent = this.active

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.parent()

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.closest( ".ui-menu-item" )

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.children( ".ui-menu-item-wrapper" );

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this._addClass( activeParent, null, "ui-state-active" );

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if ( event && event.type === "keydown" ) {

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this._close();

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} else {

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this.timer = this._delay( function() {

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this._close();

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}, this.delay );

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}

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nested = item.children( ".ui-menu" );

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if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {

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this._startOpening( nested );

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}

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this.activeMenu = item.parent();

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this._trigger( "focus", event, { item: item } );

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_scrollIntoView: function( item ) {

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var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;

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if ( this._hasScroll() ) {

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borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0;

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paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0;

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offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;

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scroll = this.activeMenu.scrollTop();

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elementHeight = this.activeMenu.height();

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itemHeight = item.outerHeight();

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if ( offset < 0 ) {

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this.activeMenu.scrollTop( scroll + offset );

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} else if ( offset + itemHeight > elementHeight ) {

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this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );

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}

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}

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blur: function( event, fromFocus ) {

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if ( !fromFocus ) {

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clearTimeout( this.timer );

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}

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if ( !this.active ) {

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return;

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}

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this._removeClass( this.active.children( ".ui-menu-item-wrapper" ),

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null, "ui-state-active" );

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this._trigger( "blur", event, { item: this.active } );

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this.active = null;

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_startOpening: function( submenu ) {

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clearTimeout( this.timer );

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// Don't open if already open fixes a Firefox bug that caused a .5 pixel

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// shift in the submenu position when mousing over the caret icon

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if ( submenu.attr( "aria-hidden" ) !== "true" ) {

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return;

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}

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this.timer = this._delay( function() {

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this._close();

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this._open( submenu );

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}, this.delay );

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[488] Fix | Delete

[489] Fix | Delete

_open: function( submenu ) {

[490] Fix | Delete

var position = $.extend( {

[491] Fix | Delete

of: this.active

[492] Fix | Delete

}, this.options.position );

[493] Fix | Delete

[494] Fix | Delete

clearTimeout( this.timer );

[495] Fix | Delete

this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )

[496] Fix | Delete

.hide()

[497] Fix | Delete

.attr( "aria-hidden", "true" );

[498] Fix | Delete

[499] Fix | Delete