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/**

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* @output wp-admin/js/customize-nav-menus.js

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/* global menus, _wpCustomizeNavMenusSettings, wpNavMenu, console */

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( function( api, wp, $ ) {

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'use strict';

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/**

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* Set up wpNavMenu for drag and drop.

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wpNavMenu.originalInit = wpNavMenu.init;

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wpNavMenu.options.menuItemDepthPerLevel = 20;

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wpNavMenu.options.sortableItems = '> .customize-control-nav_menu_item';

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wpNavMenu.options.targetTolerance = 10;

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wpNavMenu.init = function() {

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this.jQueryExtensions();

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};

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/**

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* @namespace wp.customize.Menus

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api.Menus = api.Menus || {};

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// Link settings.

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api.Menus.data = {

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itemTypes: [],

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l10n: {},

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settingTransport: 'refresh',

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phpIntMax: 0,

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defaultSettingValues: {

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nav_menu: {},

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nav_menu_item: {}

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locationSlugMappedToName: {}

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};

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if ( 'undefined' !== typeof _wpCustomizeNavMenusSettings ) {

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$.extend( api.Menus.data, _wpCustomizeNavMenusSettings );

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}

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/**

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* Newly-created Nav Menus and Nav Menu Items have negative integer IDs which

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* serve as placeholders until Save & Publish happens.

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* @alias wp.customize.Menus.generatePlaceholderAutoIncrementId

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* @return {number}

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api.Menus.generatePlaceholderAutoIncrementId = function() {

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return -Math.ceil( api.Menus.data.phpIntMax * Math.random() );

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};

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/**

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* wp.customize.Menus.AvailableItemModel

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* A single available menu item model. See PHP's WP_Customize_Nav_Menu_Item_Setting class.

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* @class wp.customize.Menus.AvailableItemModel

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* @augments Backbone.Model

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api.Menus.AvailableItemModel = Backbone.Model.extend( $.extend(

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{

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id: null // This is only used by Backbone.

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api.Menus.data.defaultSettingValues.nav_menu_item

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) );

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/**

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* wp.customize.Menus.AvailableItemCollection

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* Collection for available menu item models.

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* @class wp.customize.Menus.AvailableItemCollection

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* @augments Backbone.Collection

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api.Menus.AvailableItemCollection = Backbone.Collection.extend(/** @lends wp.customize.Menus.AvailableItemCollection.prototype */{

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model: api.Menus.AvailableItemModel,

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sort_key: 'order',

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comparator: function( item ) {

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return -item.get( this.sort_key );

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sortByField: function( fieldName ) {

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this.sort_key = fieldName;

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this.sort();

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}

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});

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api.Menus.availableMenuItems = new api.Menus.AvailableItemCollection( api.Menus.data.availableMenuItems );

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/**

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* Insert a new `auto-draft` post.

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* @since 4.7.0

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* @alias wp.customize.Menus.insertAutoDraftPost

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* @param {Object} params - Parameters for the draft post to create.

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* @param {string} params.post_type - Post type to add.

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* @param {string} params.post_title - Post title to use.

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* @return {jQuery.promise} Promise resolved with the added post.

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api.Menus.insertAutoDraftPost = function insertAutoDraftPost( params ) {

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var request, deferred = $.Deferred();

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request = wp.ajax.post( 'customize-nav-menus-insert-auto-draft', {

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'customize-menus-nonce': api.settings.nonce['customize-menus'],

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'wp_customize': 'on',

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'customize_changeset_uuid': api.settings.changeset.uuid,

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'params': params

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} );

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request.done( function( response ) {

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if ( response.post_id ) {

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api( 'nav_menus_created_posts' ).set(

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api( 'nav_menus_created_posts' ).get().concat( [ response.post_id ] )

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);

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if ( 'page' === params.post_type ) {

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// Activate static front page controls as this could be the first page created.

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if ( api.section.has( 'static_front_page' ) ) {

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api.section( 'static_front_page' ).activate();

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}

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// Add new page to dropdown-pages controls.

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api.control.each( function( control ) {

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var select;

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if ( 'dropdown-pages' === control.params.type ) {

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select = control.container.find( 'select[name^="_customize-dropdown-pages-"]' );

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select.append( new Option( params.post_title, response.post_id ) );

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}

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} );

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}

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deferred.resolve( response );

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}

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} );

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request.fail( function( response ) {

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var error = response || '';

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if ( 'undefined' !== typeof response.message ) {

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error = response.message;

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}

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console.error( error );

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deferred.rejectWith( error );

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} );

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return deferred.promise();

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};

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api.Menus.AvailableMenuItemsPanelView = wp.Backbone.View.extend(/** @lends wp.customize.Menus.AvailableMenuItemsPanelView.prototype */{

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el: '#available-menu-items',

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events: {

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'input #menu-items-search': 'debounceSearch',

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'focus .menu-item-tpl': 'focus',

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'click .menu-item-tpl': '_submit',

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'click #custom-menu-item-submit': '_submitLink',

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'keypress #custom-menu-item-name': '_submitLink',

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'click .new-content-item .add-content': '_submitNew',

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'keypress .create-item-input': '_submitNew',

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'keydown': 'keyboardAccessible'

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// Cache current selected menu item.

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selected: null,

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// Cache menu control that opened the panel.

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currentMenuControl: null,

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debounceSearch: null,

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$search: null,

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$clearResults: null,

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searchTerm: '',

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rendered: false,

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pages: {},

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sectionContent: '',

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loading: false,

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addingNew: false,

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/**

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* wp.customize.Menus.AvailableMenuItemsPanelView

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* View class for the available menu items panel.

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* @constructs wp.customize.Menus.AvailableMenuItemsPanelView

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* @augments wp.Backbone.View

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initialize: function() {

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var self = this;

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if ( ! api.panel.has( 'nav_menus' ) ) {

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return;

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}

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this.$search = $( '#menu-items-search' );

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this.$clearResults = this.$el.find( '.clear-results' );

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this.sectionContent = this.$el.find( '.available-menu-items-list' );

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this.debounceSearch = _.debounce( self.search, 500 );

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_.bindAll( this, 'close' );

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* If the available menu items panel is open and the customize controls

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* are interacted with (other than an item being deleted), then close

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* the available menu items panel. Also close on back button click.

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$( '#customize-controls, .customize-section-back' ).on( 'click keydown', function( e ) {

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var isDeleteBtn = $( e.target ).is( '.item-delete, .item-delete *' ),

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isAddNewBtn = $( e.target ).is( '.add-new-menu-item, .add-new-menu-item *' );

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if ( $( 'body' ).hasClass( 'adding-menu-items' ) && ! isDeleteBtn && ! isAddNewBtn ) {

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self.close();

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}

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} );

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// Clear the search results and trigger an `input` event to fire a new search.

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this.$clearResults.on( 'click', function() {

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self.$search.val( '' ).trigger( 'focus' ).trigger( 'input' );

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} );

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this.$el.on( 'input', '#custom-menu-item-name.invalid, #custom-menu-item-url.invalid', function() {

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$( this ).removeClass( 'invalid' );

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});

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// Load available items if it looks like we'll need them.

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api.panel( 'nav_menus' ).container.on( 'expanded', function() {

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if ( ! self.rendered ) {

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self.initList();

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self.rendered = true;

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}

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});

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// Load more items.

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this.sectionContent.on( 'scroll', function() {

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var totalHeight = self.$el.find( '.accordion-section.open .available-menu-items-list' ).prop( 'scrollHeight' ),

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visibleHeight = self.$el.find( '.accordion-section.open' ).height();

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if ( ! self.loading && $( this ).scrollTop() > 3 / 4 * totalHeight - visibleHeight ) {

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var type = $( this ).data( 'type' ),

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object = $( this ).data( 'object' );

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if ( 'search' === type ) {

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if ( self.searchTerm ) {

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self.doSearch( self.pages.search );

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}

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} else {

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self.loadItems( [

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{ type: type, object: object }

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] );

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}

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}

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});

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// Close the panel if the URL in the preview changes.

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api.previewer.bind( 'url', this.close );

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self.delegateEvents();

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// Search input change handler.

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search: function( event ) {

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var $searchSection = $( '#available-menu-items-search' ),

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$otherSections = $( '#available-menu-items .accordion-section' ).not( $searchSection );

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if ( ! event ) {

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return;

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}

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if ( this.searchTerm === event.target.value ) {

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return;

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}

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if ( '' !== event.target.value && ! $searchSection.hasClass( 'open' ) ) {

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$otherSections.fadeOut( 100 );

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$searchSection.find( '.accordion-section-content' ).slideDown( 'fast' );

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$searchSection.addClass( 'open' );

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this.$clearResults.addClass( 'is-visible' );

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} else if ( '' === event.target.value ) {

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$searchSection.removeClass( 'open' );

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$otherSections.show();

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this.$clearResults.removeClass( 'is-visible' );

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}

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this.searchTerm = event.target.value;

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this.pages.search = 1;

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this.doSearch( 1 );

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// Get search results.

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doSearch: function( page ) {

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var self = this, params,

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$section = $( '#available-menu-items-search' ),

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$content = $section.find( '.accordion-section-content' ),

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itemTemplate = wp.template( 'available-menu-item' );

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if ( self.currentRequest ) {

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self.currentRequest.abort();

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}

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if ( page < 0 ) {

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return;

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} else if ( page > 1 ) {

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$section.addClass( 'loading-more' );

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$content.attr( 'aria-busy', 'true' );

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wp.a11y.speak( api.Menus.data.l10n.itemsLoadingMore );

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} else if ( '' === self.searchTerm ) {

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$content.html( '' );

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wp.a11y.speak( '' );

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return;

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}

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$section.addClass( 'loading' );

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self.loading = true;

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params = api.previewer.query( { excludeCustomizedSaved: true } );

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_.extend( params, {

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'customize-menus-nonce': api.settings.nonce['customize-menus'],

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'wp_customize': 'on',

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'search': self.searchTerm,

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'page': page

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} );

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self.currentRequest = wp.ajax.post( 'search-available-menu-items-customizer', params );

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self.currentRequest.done(function( data ) {

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var items;

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if ( 1 === page ) {

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// Clear previous results as it's a new search.

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$content.empty();

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}

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$section.removeClass( 'loading loading-more' );

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$content.attr( 'aria-busy', 'false' );

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$section.addClass( 'open' );

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self.loading = false;

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items = new api.Menus.AvailableItemCollection( data.items );

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self.collection.add( items.models );

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items.each( function( menuItem ) {

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$content.append( itemTemplate( menuItem.attributes ) );

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} );

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if ( 20 > items.length ) {

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self.pages.search = -1; // Up to 20 posts and 20 terms in results, if <20, no more results for either.

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} else {

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self.pages.search = self.pages.search + 1;

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}

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if ( items && page > 1 ) {

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wp.a11y.speak( api.Menus.data.l10n.itemsFoundMore.replace( '%d', items.length ) );

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} else if ( items && page === 1 ) {

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wp.a11y.speak( api.Menus.data.l10n.itemsFound.replace( '%d', items.length ) );

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}

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});

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self.currentRequest.fail(function( data ) {

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// data.message may be undefined, for example when typing slow and the request is aborted.

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if ( data.message ) {

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$content.empty().append( $( '<li class="nothing-found"></li>' ).text( data.message ) );

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wp.a11y.speak( data.message );

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}

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self.pages.search = -1;

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});

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self.currentRequest.always(function() {

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$section.removeClass( 'loading loading-more' );

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$content.attr( 'aria-busy', 'false' );

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self.loading = false;

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self.currentRequest = null;

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});

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// Render the individual items.

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initList: function() {

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var self = this;

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// Render the template for each item by type.

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_.each( api.Menus.data.itemTypes, function( itemType ) {

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self.pages[ itemType.type + ':' + itemType.object ] = 0;

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} );

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self.loadItems( api.Menus.data.itemTypes );

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/**

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* Load available nav menu items.

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* @since 4.3.0

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* @since 4.7.0 Changed function signature to take list of item types instead of single type/object.

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* @access private

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* @param {Array.<Object>} itemTypes List of objects containing type and key.

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* @param {string} deprecated Formerly the object parameter.

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* @return {void}

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loadItems: function( itemTypes, deprecated ) {

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var self = this, _itemTypes, requestItemTypes = [], params, request, itemTemplate, availableMenuItemContainers = {};

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itemTemplate = wp.template( 'available-menu-item' );

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if ( _.isString( itemTypes ) && _.isString( deprecated ) ) {

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_itemTypes = [ { type: itemTypes, object: deprecated } ];

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} else {

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_itemTypes = itemTypes;

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}

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_.each( _itemTypes, function( itemType ) {

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var container, name = itemType.type + ':' + itemType.object;

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if ( -1 === self.pages[ name ] ) {

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return; // Skip types for which there are no more results.

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}

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container = $( '#available-menu-items-' + itemType.type + '-' + itemType.object );

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container.find( '.accordion-section-title' ).addClass( 'loading' );

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availableMenuItemContainers[ name ] = container;

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requestItemTypes.push( {

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object: itemType.object,

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type: itemType.type,

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page: self.pages[ name ]

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} );

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} );

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if ( 0 === requestItemTypes.length ) {

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return;

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}

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self.loading = true;

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params = api.previewer.query( { excludeCustomizedSaved: true } );

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_.extend( params, {

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'customize-menus-nonce': api.settings.nonce['customize-menus'],

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'wp_customize': 'on',

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'item_types': requestItemTypes

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} );

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request = wp.ajax.post( 'load-available-menu-items-customizer', params );

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request.done(function( data ) {

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var typeInner;

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_.each( data.items, function( typeItems, name ) {

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if ( 0 === typeItems.length ) {

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if ( 0 === self.pages[ name ] ) {

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availableMenuItemContainers[ name ].find( '.accordion-section-title' )

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.addClass( 'cannot-expand' )

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.removeClass( 'loading' )

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.find( '.accordion-section-title > button' )

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.prop( 'tabIndex', -1 );

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}

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self.pages[ name ] = -1;

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return;

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} else if ( ( 'post_type:page' === name ) && ( ! availableMenuItemContainers[ name ].hasClass( 'open' ) ) ) {

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availableMenuItemContainers[ name ].find( '.accordion-section-title > button' ).trigger( 'click' );

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}

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typeItems = new api.Menus.AvailableItemCollection( typeItems ); // @todo Why is this collection created and then thrown away?

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self.collection.add( typeItems.models );

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typeInner = availableMenuItemContainers[ name ].find( '.available-menu-items-list' );

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typeItems.each( function( menuItem ) {

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typeInner.append( itemTemplate( menuItem.attributes ) );

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} );

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self.pages[ name ] += 1;

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});

[457] Fix | Delete

});

[458] Fix | Delete

request.fail(function( data ) {

[459] Fix | Delete

if ( typeof console !== 'undefined' && console.error ) {

[460] Fix | Delete

console.error( data );

[461] Fix | Delete

}

[462] Fix | Delete

});

[463] Fix | Delete

request.always(function() {

[464] Fix | Delete

_.each( availableMenuItemContainers, function( container ) {

[465] Fix | Delete

container.find( '.accordion-section-title' ).removeClass( 'loading' );

[466] Fix | Delete

} );

[467] Fix | Delete

self.loading = false;

[468] Fix | Delete

});

[469] Fix | Delete

[470] Fix | Delete

[471] Fix | Delete

// Adjust the height of each section of items to fit the screen.

[472] Fix | Delete

itemSectionHeight: function() {

[473] Fix | Delete

var sections, lists, totalHeight, accordionHeight, diff;

[474] Fix | Delete

totalHeight = window.innerHeight;

[475] Fix | Delete

sections = this.$el.find( '.accordion-section:not( #available-menu-items-search ) .accordion-section-content' );

[476] Fix | Delete

lists = this.$el.find( '.accordion-section:not( #available-menu-items-search ) .available-menu-items-list:not(":only-child")' );

[477] Fix | Delete

accordionHeight = 46 * ( 1 + sections.length ) + 14; // Magic numbers.

[478] Fix | Delete

diff = totalHeight - accordionHeight;

[479] Fix | Delete

if ( 120 < diff && 290 > diff ) {

[480] Fix | Delete

sections.css( 'max-height', diff );

[481] Fix | Delete

lists.css( 'max-height', ( diff - 60 ) );

[482] Fix | Delete

}

[483] Fix | Delete

[484] Fix | Delete

[485] Fix | Delete

// Highlights a menu item.

[486] Fix | Delete

select: function( menuitemTpl ) {

[487] Fix | Delete

this.selected = $( menuitemTpl );

[488] Fix | Delete

this.selected.siblings( '.menu-item-tpl' ).removeClass( 'selected' );

[489] Fix | Delete

this.selected.addClass( 'selected' );

[490] Fix | Delete

[491] Fix | Delete

[492] Fix | Delete

// Highlights a menu item on focus.

[493] Fix | Delete

focus: function( event ) {

[494] Fix | Delete

this.select( $( event.currentTarget ) );

[495] Fix | Delete

[496] Fix | Delete

[497] Fix | Delete

// Submit handler for keypress and click on menu item.

[498] Fix | Delete

_submit: function( event ) {

[499] Fix | Delete

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