/*!

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* jQuery UI Selectmenu 1.13.3

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* https://jqueryui.com

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*

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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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*/

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//>>label: Selectmenu

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//>>group: Widgets

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/* eslint-disable max-len */

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//>>description: Duplicates and extends the functionality of a native HTML select element, allowing it to be customizable in behavior and appearance far beyond the limitations of a native select.

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/* eslint-enable max-len */

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

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

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

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//>>css.structure: ../../themes/base/selectmenu.css, ../../themes/base/button.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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"./menu",

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"../form-reset-mixin",

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"../keycode",

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"../labels",

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"../position",

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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.selectmenu", [ $.ui.formResetMixin, {

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version: "1.13.3",

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defaultElement: "<select>",

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options: {

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appendTo: null,

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classes: {

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"ui-selectmenu-button-open": "ui-corner-top",

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"ui-selectmenu-button-closed": "ui-corner-all"

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},

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disabled: null,

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icons: {

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button: "ui-icon-triangle-1-s"

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},

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position: {

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my: "left top",

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at: "left bottom",

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collision: "none"

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},

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width: false,

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// Callbacks

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change: null,

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close: null,

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focus: null,

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open: null,

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select: null

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},

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_create: function() {

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var selectmenuId = this.element.uniqueId().attr( "id" );

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this.ids = {

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element: selectmenuId,

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button: selectmenuId + "-button",

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menu: selectmenuId + "-menu"

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};

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this._drawButton();

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this._drawMenu();

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this._bindFormResetHandler();

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this._rendered = false;

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this.menuItems = $();

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},

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_drawButton: function() {

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var icon,

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that = this,

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item = this._parseOption(

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this.element.find( "option:selected" ),

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this.element[ 0 ].selectedIndex

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);

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// Associate existing label with the new button

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this.labels = this.element.labels().attr( "for", this.ids.button );

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this._on( this.labels, {

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click: function( event ) {

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this.button.trigger( "focus" );

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event.preventDefault();

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}

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} );

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// Hide original select element

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this.element.hide();

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// Create button

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this.button = $( "<span>", {

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tabindex: this.options.disabled ? -1 : 0,

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id: this.ids.button,

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role: "combobox",

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"aria-expanded": "false",

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"aria-autocomplete": "list",

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"aria-owns": this.ids.menu,

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"aria-haspopup": "true",

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title: this.element.attr( "title" )

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} )

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.insertAfter( this.element );

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this._addClass( this.button, "ui-selectmenu-button ui-selectmenu-button-closed",

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"ui-button ui-widget" );

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icon = $( "<span>" ).appendTo( this.button );

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this._addClass( icon, "ui-selectmenu-icon", "ui-icon " + this.options.icons.button );

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this.buttonItem = this._renderButtonItem( item )

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.appendTo( this.button );

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if ( this.options.width !== false ) {

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this._resizeButton();

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}

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this._on( this.button, this._buttonEvents );

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this.button.one( "focusin", function() {

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// Delay rendering the menu items until the button receives focus.

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// The menu may have already been rendered via a programmatic open.

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if ( !that._rendered ) {

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that._refreshMenu();

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}

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} );

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},

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_drawMenu: function() {

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var that = this;

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// Create menu

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this.menu = $( "<ul>", {

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"aria-hidden": "true",

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"aria-labelledby": this.ids.button,

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id: this.ids.menu

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} );

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// Wrap menu

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this.menuWrap = $( "<div>" ).append( this.menu );

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this._addClass( this.menuWrap, "ui-selectmenu-menu", "ui-front" );

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this.menuWrap.appendTo( this._appendTo() );

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// Initialize menu widget

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this.menuInstance = this.menu

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.menu( {

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classes: {

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"ui-menu": "ui-corner-bottom"

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},

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role: "listbox",

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select: function( event, ui ) {

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event.preventDefault();

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// Support: IE8

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// If the item was selected via a click, the text selection

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// will be destroyed in IE

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that._setSelection();

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that._select( ui.item.data( "ui-selectmenu-item" ), event );

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},

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focus: function( event, ui ) {

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var item = ui.item.data( "ui-selectmenu-item" );

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// Prevent inital focus from firing and check if its a newly focused item

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if ( that.focusIndex != null && item.index !== that.focusIndex ) {

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

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if ( !that.isOpen ) {

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that._select( item, event );

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}

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}

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that.focusIndex = item.index;

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that.button.attr( "aria-activedescendant",

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that.menuItems.eq( item.index ).attr( "id" ) );

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}

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} )

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.menu( "instance" );

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// Don't close the menu on mouseleave

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this.menuInstance._off( this.menu, "mouseleave" );

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// Cancel the menu's collapseAll on document click

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this.menuInstance._closeOnDocumentClick = function() {

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return false;

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};

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// Selects often contain empty items, but never contain dividers

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this.menuInstance._isDivider = function() {

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return false;

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};

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},

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refresh: function() {

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this._refreshMenu();

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this.buttonItem.replaceWith(

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this.buttonItem = this._renderButtonItem(

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// Fall back to an empty object in case there are no options

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this._getSelectedItem().data( "ui-selectmenu-item" ) || {}

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)

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);

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if ( this.options.width === null ) {

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this._resizeButton();

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}

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},

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_refreshMenu: function() {

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var item,

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options = this.element.find( "option" );

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this.menu.empty();

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this._parseOptions( options );

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this._renderMenu( this.menu, this.items );

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this.menuInstance.refresh();

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this.menuItems = this.menu.find( "li" )

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.not( ".ui-selectmenu-optgroup" )

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

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this._rendered = true;

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if ( !options.length ) {

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return;

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}

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item = this._getSelectedItem();

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// Update the menu to have the correct item focused

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this.menuInstance.focus( null, item );

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this._setAria( item.data( "ui-selectmenu-item" ) );

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// Set disabled state

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this._setOption( "disabled", this.element.prop( "disabled" ) );

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},

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open: function( event ) {

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if ( this.options.disabled ) {

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return;

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}

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// If this is the first time the menu is being opened, render the items

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if ( !this._rendered ) {

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this._refreshMenu();

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} else {

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// Menu clears focus on close, reset focus to selected item

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this._removeClass( this.menu.find( ".ui-state-active" ), null, "ui-state-active" );

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this.menuInstance.focus( null, this._getSelectedItem() );

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}

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// If there are no options, don't open the menu

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if ( !this.menuItems.length ) {

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return;

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}

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this.isOpen = true;

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this._toggleAttr();

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this._resizeMenu();

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this._position();

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this._on( this.document, this._documentClick );

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this._trigger( "open", event );

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},

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_position: function() {

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this.menuWrap.position( $.extend( { of: this.button }, this.options.position ) );

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},

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close: function( event ) {

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if ( !this.isOpen ) {

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return;

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}

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this.isOpen = false;

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this._toggleAttr();

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this.range = null;

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this._off( this.document );

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this._trigger( "close", event );

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},

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widget: function() {

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return this.button;

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},

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menuWidget: function() {

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return this.menu;

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},

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_renderButtonItem: function( item ) {

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var buttonItem = $( "<span>" );

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this._setText( buttonItem, item.label );

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this._addClass( buttonItem, "ui-selectmenu-text" );

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return buttonItem;

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},

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_renderMenu: function( ul, items ) {

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var that = this,

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currentOptgroup = "";

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$.each( items, function( index, item ) {

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var li;

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if ( item.optgroup !== currentOptgroup ) {

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li = $( "<li>", {

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text: item.optgroup

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} );

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that._addClass( li, "ui-selectmenu-optgroup", "ui-menu-divider" +

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( item.element.parent( "optgroup" ).prop( "disabled" ) ?

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" ui-state-disabled" :

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"" ) );

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li.appendTo( ul );

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currentOptgroup = item.optgroup;

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}

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that._renderItemData( ul, item );

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} );

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},

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_renderItemData: function( ul, item ) {

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return this._renderItem( ul, item ).data( "ui-selectmenu-item", item );

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},

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_renderItem: function( ul, item ) {

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var li = $( "<li>" ),

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wrapper = $( "<div>", {

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title: item.element.attr( "title" )

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} );

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if ( item.disabled ) {

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this._addClass( li, null, "ui-state-disabled" );

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}

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if ( item.hidden ) {

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li.prop( "hidden", true );

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} else {

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this._setText( wrapper, item.label );

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}

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return li.append( wrapper ).appendTo( ul );

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},

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_setText: function( element, value ) {

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if ( value ) {

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element.text( value );

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} else {

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element.html( "&#160;" );

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}

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},

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_move: function( direction, event ) {

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var item, next,

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filter = ".ui-menu-item";

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if ( this.isOpen ) {

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item = this.menuItems.eq( this.focusIndex ).parent( "li" );

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} else {

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item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );

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filter += ":not(.ui-state-disabled)";

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}

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if ( direction === "first" || direction === "last" ) {

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next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 );

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} else {

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next = item[ direction + "All" ]( filter ).eq( 0 );

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}

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if ( next.length ) {

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this.menuInstance.focus( event, next );

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}

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},

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_getSelectedItem: function() {

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return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );

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},

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_toggle: function( event ) {

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this[ this.isOpen ? "close" : "open" ]( event );

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},

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_setSelection: function() {

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var selection;

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if ( !this.range ) {

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return;

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}

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if ( window.getSelection ) {

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selection = window.getSelection();

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selection.removeAllRanges();

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selection.addRange( this.range );

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// Support: IE8

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} else {

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this.range.select();

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}

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// Support: IE

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// Setting the text selection kills the button focus in IE, but

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// restoring the focus doesn't kill the selection.

[423] Fix | Delete

this.button.trigger( "focus" );

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},

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_documentClick: {

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mousedown: function( event ) {

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if ( !this.isOpen ) {

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return;

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}

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if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" +

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$.escapeSelector( this.ids.button ) ).length ) {

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this.close( event );

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}

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}

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},

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_buttonEvents: {

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// Prevent text selection from being reset when interacting with the selectmenu (#10144)

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mousedown: function() {

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var selection;

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if ( window.getSelection ) {

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selection = window.getSelection();

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if ( selection.rangeCount ) {

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this.range = selection.getRangeAt( 0 );

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}

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// Support: IE8

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} else {

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this.range = document.selection.createRange();

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}

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},

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click: function( event ) {

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this._setSelection();

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this._toggle( event );

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},

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keydown: function( event ) {

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var preventDefault = true;

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switch ( event.keyCode ) {

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case $.ui.keyCode.TAB:

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case $.ui.keyCode.ESCAPE:

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this.close( event );

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preventDefault = false;

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break;

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case $.ui.keyCode.ENTER:

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if ( this.isOpen ) {

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this._selectFocusedItem( event );

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}

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break;

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case $.ui.keyCode.UP:

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if ( event.altKey ) {

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this._toggle( event );

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} else {

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this._move( "prev", event );

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}

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break;

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case $.ui.keyCode.DOWN:

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if ( event.altKey ) {

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this._toggle( event );

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} else {

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this._move( "next", event );

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}

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break;

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case $.ui.keyCode.SPACE:

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if ( this.isOpen ) {

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this._selectFocusedItem( event );

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} else {

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this._toggle( event );

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}

[495] Fix | Delete

break;

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case $.ui.keyCode.LEFT:

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this._move( "prev", event );

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break;

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