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<?php

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/**

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* WordPress Customize Nav Menus classes

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* @package WordPress

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* @subpackage Customize

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* @since 4.3.0

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/**

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* Customize Nav Menus class.

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* Implements menu management in the Customizer.

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* @since 4.3.0

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* @see WP_Customize_Manager

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#[AllowDynamicProperties]

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final class WP_Customize_Nav_Menus {

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/**

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* WP_Customize_Manager instance.

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* @since 4.3.0

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* @var WP_Customize_Manager

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public $manager;

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/**

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* Original nav menu locations before the theme was switched.

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* @since 4.9.0

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* @var array

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protected $original_nav_menu_locations;

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/**

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* Constructor.

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* @since 4.3.0

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* @param WP_Customize_Manager $manager Customizer bootstrap instance.

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public function __construct( $manager ) {

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$this->manager = $manager;

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$this->original_nav_menu_locations = get_nav_menu_locations();

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// See https://github.com/xwp/wp-customize-snapshots/blob/962586659688a5b1fd9ae93618b7ce2d4e7a421c/php/class-customize-snapshot-manager.php#L469-L499

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add_action( 'customize_register', array( $this, 'customize_register' ), 11 );

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add_filter( 'customize_dynamic_setting_args', array( $this, 'filter_dynamic_setting_args' ), 10, 2 );

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add_filter( 'customize_dynamic_setting_class', array( $this, 'filter_dynamic_setting_class' ), 10, 3 );

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add_action( 'customize_save_nav_menus_created_posts', array( $this, 'save_nav_menus_created_posts' ) );

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// Skip remaining hooks when the user can't manage nav menus anyway.

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if ( ! current_user_can( 'edit_theme_options' ) ) {

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return;

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}

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add_filter( 'customize_refresh_nonces', array( $this, 'filter_nonces' ) );

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add_action( 'wp_ajax_load-available-menu-items-customizer', array( $this, 'ajax_load_available_items' ) );

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add_action( 'wp_ajax_search-available-menu-items-customizer', array( $this, 'ajax_search_available_items' ) );

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add_action( 'wp_ajax_customize-nav-menus-insert-auto-draft', array( $this, 'ajax_insert_auto_draft_post' ) );

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add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_scripts' ) );

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add_action( 'customize_controls_print_footer_scripts', array( $this, 'print_templates' ) );

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add_action( 'customize_controls_print_footer_scripts', array( $this, 'available_items_template' ) );

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add_action( 'customize_preview_init', array( $this, 'customize_preview_init' ) );

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add_action( 'customize_preview_init', array( $this, 'make_auto_draft_status_previewable' ) );

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// Selective Refresh partials.

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add_filter( 'customize_dynamic_partial_args', array( $this, 'customize_dynamic_partial_args' ), 10, 2 );

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}

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/**

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* Adds a nonce for customizing menus.

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* @since 4.5.0

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* @param string[] $nonces Array of nonces.

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* @return string[] Modified array of nonces.

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public function filter_nonces( $nonces ) {

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$nonces['customize-menus'] = wp_create_nonce( 'customize-menus' );

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return $nonces;

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}

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/**

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* Ajax handler for loading available menu items.

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* @since 4.3.0

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public function ajax_load_available_items() {

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check_ajax_referer( 'customize-menus', 'customize-menus-nonce' );

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if ( ! current_user_can( 'edit_theme_options' ) ) {

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wp_die( -1 );

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}

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$all_items = array();

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$item_types = array();

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if ( isset( $_POST['item_types'] ) && is_array( $_POST['item_types'] ) ) {

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$item_types = wp_unslash( $_POST['item_types'] );

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} elseif ( isset( $_POST['type'] ) && isset( $_POST['object'] ) ) { // Back compat.

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$item_types[] = array(

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'type' => wp_unslash( $_POST['type'] ),

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'object' => wp_unslash( $_POST['object'] ),

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'page' => empty( $_POST['page'] ) ? 0 : absint( $_POST['page'] ),

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);

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} else {

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wp_send_json_error( 'nav_menus_missing_type_or_object_parameter' );

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}

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foreach ( $item_types as $item_type ) {

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if ( empty( $item_type['type'] ) || empty( $item_type['object'] ) ) {

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wp_send_json_error( 'nav_menus_missing_type_or_object_parameter' );

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}

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$type = sanitize_key( $item_type['type'] );

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$object = sanitize_key( $item_type['object'] );

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$page = empty( $item_type['page'] ) ? 0 : absint( $item_type['page'] );

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$items = $this->load_available_items_query( $type, $object, $page );

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if ( is_wp_error( $items ) ) {

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wp_send_json_error( $items->get_error_code() );

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}

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$all_items[ $item_type['type'] . ':' . $item_type['object'] ] = $items;

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}

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wp_send_json_success( array( 'items' => $all_items ) );

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}

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/**

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* Performs the post_type and taxonomy queries for loading available menu items.

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* @since 4.3.0

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* @param string $object_type Optional. Accepts any custom object type and has built-in support for

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* 'post_type' and 'taxonomy'. Default is 'post_type'.

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* @param string $object_name Optional. Accepts any registered taxonomy or post type name. Default is 'page'.

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* @param int $page Optional. The page number used to generate the query offset. Default is '0'.

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* @return array|WP_Error An array of menu items on success, a WP_Error object on failure.

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public function load_available_items_query( $object_type = 'post_type', $object_name = 'page', $page = 0 ) {

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$items = array();

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if ( 'post_type' === $object_type ) {

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$post_type = get_post_type_object( $object_name );

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if ( ! $post_type ) {

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return new WP_Error( 'nav_menus_invalid_post_type' );

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}

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* If we're dealing with pages, let's prioritize the Front Page,

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* Posts Page and Privacy Policy Page at the top of the list.

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$important_pages = array();

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$suppress_page_ids = array();

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if ( 0 === $page && 'page' === $object_name ) {

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// Insert Front Page or custom "Home" link.

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$front_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_on_front' ) : 0;

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if ( ! empty( $front_page ) ) {

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$front_page_obj = get_post( $front_page );

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$important_pages[] = $front_page_obj;

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$suppress_page_ids[] = $front_page_obj->ID;

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} else {

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// Add "Home" link. Treat as a page, but switch to custom on add.

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$items[] = array(

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'id' => 'home',

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'title' => _x( 'Home', 'nav menu home label' ),

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'type' => 'custom',

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'type_label' => __( 'Custom Link' ),

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'object' => '',

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'url' => home_url(),

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);

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}

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// Insert Posts Page.

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$posts_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_for_posts' ) : 0;

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if ( ! empty( $posts_page ) ) {

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$posts_page_obj = get_post( $posts_page );

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$important_pages[] = $posts_page_obj;

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$suppress_page_ids[] = $posts_page_obj->ID;

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}

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// Insert Privacy Policy Page.

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$privacy_policy_page_id = (int) get_option( 'wp_page_for_privacy_policy' );

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if ( ! empty( $privacy_policy_page_id ) ) {

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$privacy_policy_page = get_post( $privacy_policy_page_id );

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if ( $privacy_policy_page instanceof WP_Post && 'publish' === $privacy_policy_page->post_status ) {

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$important_pages[] = $privacy_policy_page;

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$suppress_page_ids[] = $privacy_policy_page->ID;

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}

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}

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} elseif ( 'post' !== $object_name && 0 === $page && $post_type->has_archive ) {

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// Add a post type archive link.

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$title = $post_type->labels->archives;

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$items[] = array(

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'id' => $object_name . '-archive',

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'title' => $title,

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'original_title' => $title,

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'type' => 'post_type_archive',

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'type_label' => __( 'Post Type Archive' ),

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'object' => $object_name,

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'url' => get_post_type_archive_link( $object_name ),

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);

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}

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// Prepend posts with nav_menus_created_posts on first page.

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$posts = array();

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if ( 0 === $page && $this->manager->get_setting( 'nav_menus_created_posts' ) ) {

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foreach ( $this->manager->get_setting( 'nav_menus_created_posts' )->value() as $post_id ) {

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$auto_draft_post = get_post( $post_id );

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if ( $post_type->name === $auto_draft_post->post_type ) {

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$posts[] = $auto_draft_post;

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}

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}

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}

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$args = array(

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'numberposts' => 10,

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'offset' => 10 * $page,

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'orderby' => 'date',

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'order' => 'DESC',

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'post_type' => $object_name,

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);

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// Add suppression array to arguments for get_posts.

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if ( ! empty( $suppress_page_ids ) ) {

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$args['post__not_in'] = $suppress_page_ids;

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}

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$posts = array_merge(

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$posts,

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$important_pages,

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get_posts( $args )

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);

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foreach ( $posts as $post ) {

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$post_title = $post->post_title;

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if ( '' === $post_title ) {

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/* translators: %d: ID of a post. */

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$post_title = sprintf( __( '#%d (no title)' ), $post->ID );

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}

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$post_type_label = get_post_type_object( $post->post_type )->labels->singular_name;

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$post_states = get_post_states( $post );

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if ( ! empty( $post_states ) ) {

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$post_type_label = implode( ',', $post_states );

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}

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$title = html_entity_decode( $post_title, ENT_QUOTES, get_bloginfo( 'charset' ) );

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$items[] = array(

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'id' => "post-{$post->ID}",

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'title' => $title,

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'original_title' => $title,

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'type' => 'post_type',

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'type_label' => $post_type_label,

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'object' => $post->post_type,

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'object_id' => (int) $post->ID,

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'url' => get_permalink( (int) $post->ID ),

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);

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}

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} elseif ( 'taxonomy' === $object_type ) {

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$terms = get_terms(

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array(

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'taxonomy' => $object_name,

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'child_of' => 0,

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'exclude' => '',

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'hide_empty' => false,

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'hierarchical' => 1,

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'include' => '',

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'number' => 10,

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'offset' => 10 * $page,

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'order' => 'DESC',

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'orderby' => 'count',

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'pad_counts' => false,

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)

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);

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if ( is_wp_error( $terms ) ) {

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return $terms;

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}

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foreach ( $terms as $term ) {

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$title = html_entity_decode( $term->name, ENT_QUOTES, get_bloginfo( 'charset' ) );

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$items[] = array(

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'id' => "term-{$term->term_id}",

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'title' => $title,

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'original_title' => $title,

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'type' => 'taxonomy',

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'type_label' => get_taxonomy( $term->taxonomy )->labels->singular_name,

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'object' => $term->taxonomy,

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'object_id' => (int) $term->term_id,

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'url' => get_term_link( (int) $term->term_id, $term->taxonomy ),

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);

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}

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}

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/**

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* Filters the available menu items.

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* @since 4.3.0

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* @param array $items The array of menu items.

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* @param string $object_type The object type.

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* @param string $object_name The object name.

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* @param int $page The current page number.

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$items = apply_filters( 'customize_nav_menu_available_items', $items, $object_type, $object_name, $page );

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return $items;

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}

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/**

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* Ajax handler for searching available menu items.

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* @since 4.3.0

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public function ajax_search_available_items() {

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check_ajax_referer( 'customize-menus', 'customize-menus-nonce' );

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if ( ! current_user_can( 'edit_theme_options' ) ) {

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wp_die( -1 );

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}

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if ( empty( $_POST['search'] ) ) {

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wp_send_json_error( 'nav_menus_missing_search_parameter' );

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}

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$p = isset( $_POST['page'] ) ? absint( $_POST['page'] ) : 0;

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if ( $p < 1 ) {

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$p = 1;

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}

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$s = sanitize_text_field( wp_unslash( $_POST['search'] ) );

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$items = $this->search_available_items_query(

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array(

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'pagenum' => $p,

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's' => $s,

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)

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);

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if ( empty( $items ) ) {

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wp_send_json_error( array( 'message' => __( 'No results found.' ) ) );

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} else {

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wp_send_json_success( array( 'items' => $items ) );

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}

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}

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/**

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* Performs post queries for available-item searching.

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* Based on WP_Editor::wp_link_query().

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* @since 4.3.0

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* @param array $args Optional. Accepts 'pagenum' and 's' (search) arguments.

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* @return array Menu items.

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public function search_available_items_query( $args = array() ) {

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$items = array();

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$post_type_objects = get_post_types( array( 'show_in_nav_menus' => true ), 'objects' );

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$query = array(

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'post_type' => array_keys( $post_type_objects ),

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'suppress_filters' => true,

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'update_post_term_cache' => false,

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'update_post_meta_cache' => false,

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'post_status' => 'publish',

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'posts_per_page' => 20,

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);

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$args['pagenum'] = isset( $args['pagenum'] ) ? absint( $args['pagenum'] ) : 1;

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$query['offset'] = $args['pagenum'] > 1 ? $query['posts_per_page'] * ( $args['pagenum'] - 1 ) : 0;

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if ( isset( $args['s'] ) ) {

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$query['s'] = $args['s'];

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}

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$posts = array();

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// Prepend list of posts with nav_menus_created_posts search results on first page.

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$nav_menus_created_posts_setting = $this->manager->get_setting( 'nav_menus_created_posts' );

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if ( 1 === $args['pagenum'] && $nav_menus_created_posts_setting && count( $nav_menus_created_posts_setting->value() ) > 0 ) {

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$stub_post_query = new WP_Query(

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array_merge(

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$query,

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array(

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'post_status' => 'auto-draft',

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'post__in' => $nav_menus_created_posts_setting->value(),

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'posts_per_page' => -1,

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)

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)

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);

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$posts = array_merge( $posts, $stub_post_query->posts );

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}

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// Query posts.

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$get_posts = new WP_Query( $query );

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$posts = array_merge( $posts, $get_posts->posts );

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// Create items for posts.

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foreach ( $posts as $post ) {

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$post_title = $post->post_title;

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if ( '' === $post_title ) {

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/* translators: %d: ID of a post. */

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$post_title = sprintf( __( '#%d (no title)' ), $post->ID );

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}

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$post_type_label = $post_type_objects[ $post->post_type ]->labels->singular_name;

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$post_states = get_post_states( $post );

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if ( ! empty( $post_states ) ) {

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$post_type_label = implode( ',', $post_states );

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}

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$items[] = array(

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'id' => 'post-' . $post->ID,

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'title' => html_entity_decode( $post_title, ENT_QUOTES, get_bloginfo( 'charset' ) ),

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'type' => 'post_type',

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'type_label' => $post_type_label,

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'object' => $post->post_type,

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'object_id' => (int) $post->ID,

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'url' => get_permalink( (int) $post->ID ),

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);

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}

[422] Fix | Delete

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// Query taxonomy terms.

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$taxonomies = get_taxonomies( array( 'show_in_nav_menus' => true ), 'names' );

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$terms = get_terms(

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array(

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'taxonomies' => $taxonomies,

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'name__like' => $args['s'],

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'number' => 20,

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'hide_empty' => false,

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'offset' => 20 * ( $args['pagenum'] - 1 ),

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)

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);

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[435] Fix | Delete

// Check if any taxonomies were found.

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if ( ! empty( $terms ) ) {

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foreach ( $terms as $term ) {

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$items[] = array(

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'id' => 'term-' . $term->term_id,

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'title' => html_entity_decode( $term->name, ENT_QUOTES, get_bloginfo( 'charset' ) ),

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'type' => 'taxonomy',

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'type_label' => get_taxonomy( $term->taxonomy )->labels->singular_name,

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'object' => $term->taxonomy,

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'object_id' => (int) $term->term_id,

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'url' => get_term_link( (int) $term->term_id, $term->taxonomy ),

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);

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}

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}

[449] Fix | Delete

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// Add "Home" link if search term matches. Treat as a page, but switch to custom on add.

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if ( isset( $args['s'] ) ) {

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// Only insert custom "Home" link if there's no Front Page

[453] Fix | Delete

$front_page = 'page' === get_option( 'show_on_front' ) ? (int) get_option( 'page_on_front' ) : 0;

[454] Fix | Delete

if ( empty( $front_page ) ) {

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$title = _x( 'Home', 'nav menu home label' );

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$matches = function_exists( 'mb_stripos' ) ? false !== mb_stripos( $title, $args['s'] ) : false !== stripos( $title, $args['s'] );

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if ( $matches ) {

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$items[] = array(

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'id' => 'home',

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'title' => $title,

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'type' => 'custom',

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'type_label' => __( 'Custom Link' ),

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'object' => '',

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'url' => home_url(),

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);

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}

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}

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}

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[470] Fix | Delete

/**

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* Filters the available menu items during a search request.

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* @since 4.5.0

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* @param array $items The array of menu items.

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* @param array $args Includes 'pagenum' and 's' (search) arguments.

[477] Fix | Delete

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$items = apply_filters( 'customize_nav_menu_searched_items', $items, $args );

[479] Fix | Delete

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return $items;

[481] Fix | Delete

}

[482] Fix | Delete

[483] Fix | Delete

/**

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* Enqueues scripts and styles for Customizer pane.

[485] Fix | Delete

[486] Fix | Delete

* @since 4.3.0

[487] Fix | Delete

[488] Fix | Delete

public function enqueue_scripts() {

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wp_enqueue_style( 'customize-nav-menus' );

[490] Fix | Delete

wp_enqueue_script( 'customize-nav-menus' );

[491] Fix | Delete

[492] Fix | Delete

$temp_nav_menu_setting = new WP_Customize_Nav_Menu_Setting( $this->manager, 'nav_menu[-1]' );

[493] Fix | Delete

$temp_nav_menu_item_setting = new WP_Customize_Nav_Menu_Item_Setting( $this->manager, 'nav_menu_item[-1]' );

[494] Fix | Delete

[495] Fix | Delete

$num_locations = count( get_registered_nav_menus() );

[496] Fix | Delete

[497] Fix | Delete

if ( 1 === $num_locations ) {

[498] Fix | Delete

$locations_description = __( 'Your theme can display menus in one location.' );

[499] Fix | Delete

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