<?php

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/**

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* WordPress Administration for Navigation Menus

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* Interface functions

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*

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* @version 2.0.0

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*

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* @package WordPress

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* @subpackage Administration

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*/

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/** Load WordPress Administration Bootstrap */

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require_once __DIR__ . '/admin.php';

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// Load all the nav menu interface functions.

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require_once ABSPATH . 'wp-admin/includes/nav-menu.php';

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if ( ! current_theme_supports( 'menus' ) && ! current_theme_supports( 'widgets' ) ) {

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wp_die( __( 'Your theme does not support navigation menus or widgets.' ) );

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}

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// Permissions check.

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if ( ! current_user_can( 'edit_theme_options' ) ) {

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wp_die(

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'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .

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'<p>' . __( 'Sorry, you are not allowed to edit theme options on this site.' ) . '</p>',

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403

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);

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}

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wp_enqueue_script( 'nav-menu' );

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if ( wp_is_mobile() ) {

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wp_enqueue_script( 'jquery-touch-punch' );

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}

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// Container for any messages displayed to the user.

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$messages = array();

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// Container that stores the name of the active menu.

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$nav_menu_selected_title = '';

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// The menu id of the current menu being edited.

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$nav_menu_selected_id = isset( $_REQUEST['menu'] ) ? (int) $_REQUEST['menu'] : 0;

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// Get existing menu locations assignments.

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$locations = get_registered_nav_menus();

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$menu_locations = get_nav_menu_locations();

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$num_locations = count( array_keys( $locations ) );

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// Allowed actions: add, update, delete.

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$action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'edit';

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/*

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* If a JSON blob of navigation menu data is found, expand it and inject it

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* into `$_POST` to avoid PHP `max_input_vars` limitations. See #14134.

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*/

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_wp_expand_nav_menu_post_data();

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switch ( $action ) {

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case 'add-menu-item':

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check_admin_referer( 'add-menu_item', 'menu-settings-column-nonce' );

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if ( isset( $_REQUEST['nav-menu-locations'] ) ) {

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set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_REQUEST['menu-locations'] ) );

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} elseif ( isset( $_REQUEST['menu-item'] ) ) {

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wp_save_nav_menu_items( $nav_menu_selected_id, $_REQUEST['menu-item'] );

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}

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break;

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case 'move-down-menu-item':

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// Moving down a menu item is the same as moving up the next in order.

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check_admin_referer( 'move-menu_item' );

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$menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;

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if ( is_nav_menu_item( $menu_item_id ) ) {

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$menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );

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if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {

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$menu_id = (int) $menus[0];

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$ordered_menu_items = wp_get_nav_menu_items( $menu_id );

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$menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );

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// Set up the data we need in one pass through the array of menu items.

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$dbids_to_orders = array();

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$orders_to_dbids = array();

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foreach ( (array) $ordered_menu_items as $ordered_menu_item_object ) {

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if ( isset( $ordered_menu_item_object->ID ) ) {

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if ( isset( $ordered_menu_item_object->menu_order ) ) {

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$dbids_to_orders[ $ordered_menu_item_object->ID ] = $ordered_menu_item_object->menu_order;

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$orders_to_dbids[ $ordered_menu_item_object->menu_order ] = $ordered_menu_item_object->ID;

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}

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}

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}

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// Get next in order.

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if ( isset( $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] + 1 ] ) ) {

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$next_item_id = $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] + 1 ];

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$next_item_data = (array) wp_setup_nav_menu_item( get_post( $next_item_id ) );

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// If not siblings of same parent, bubble menu item up but keep order.

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if ( ! empty( $menu_item_data['menu_item_parent'] )

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&& ( empty( $next_item_data['menu_item_parent'] )

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|| (int) $next_item_data['menu_item_parent'] !== (int) $menu_item_data['menu_item_parent'] )

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) {

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if ( in_array( (int) $menu_item_data['menu_item_parent'], $orders_to_dbids, true ) ) {

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$parent_db_id = (int) $menu_item_data['menu_item_parent'];

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} else {

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$parent_db_id = 0;

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}

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$parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );

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if ( ! is_wp_error( $parent_object ) ) {

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$parent_data = (array) $parent_object;

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$menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];

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update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );

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}

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// Make menu item a child of its next sibling.

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} else {

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$next_item_data['menu_order'] = $next_item_data['menu_order'] - 1;

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$menu_item_data['menu_order'] = $menu_item_data['menu_order'] + 1;

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$menu_item_data['menu_item_parent'] = $next_item_data['ID'];

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update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );

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wp_update_post( $menu_item_data );

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wp_update_post( $next_item_data );

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}

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// The item is last but still has a parent, so bubble up.

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} elseif ( ! empty( $menu_item_data['menu_item_parent'] )

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&& in_array( (int) $menu_item_data['menu_item_parent'], $orders_to_dbids, true )

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) {

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$menu_item_data['menu_item_parent'] = (int) get_post_meta( $menu_item_data['menu_item_parent'], '_menu_item_menu_item_parent', true );

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update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );

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}

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}

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}

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break;

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case 'move-up-menu-item':

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check_admin_referer( 'move-menu_item' );

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$menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;

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if ( is_nav_menu_item( $menu_item_id ) ) {

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if ( isset( $_REQUEST['menu'] ) ) {

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$menus = array( (int) $_REQUEST['menu'] );

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} else {

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$menus = wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );

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}

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if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {

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$menu_id = (int) $menus[0];

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$ordered_menu_items = wp_get_nav_menu_items( $menu_id );

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$menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );

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// Set up the data we need in one pass through the array of menu items.

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$dbids_to_orders = array();

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$orders_to_dbids = array();

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foreach ( (array) $ordered_menu_items as $ordered_menu_item_object ) {

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if ( isset( $ordered_menu_item_object->ID ) ) {

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if ( isset( $ordered_menu_item_object->menu_order ) ) {

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$dbids_to_orders[ $ordered_menu_item_object->ID ] = $ordered_menu_item_object->menu_order;

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$orders_to_dbids[ $ordered_menu_item_object->menu_order ] = $ordered_menu_item_object->ID;

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}

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}

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}

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// If this menu item is not first.

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if ( ! empty( $dbids_to_orders[ $menu_item_id ] )

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&& ! empty( $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ] )

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) {

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// If this menu item is a child of the previous.

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if ( ! empty( $menu_item_data['menu_item_parent'] )

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&& in_array( (int) $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ), true )

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&& isset( $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ] )

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&& ( (int) $menu_item_data['menu_item_parent'] === $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ] )

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) {

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if ( in_array( (int) $menu_item_data['menu_item_parent'], $orders_to_dbids, true ) ) {

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$parent_db_id = (int) $menu_item_data['menu_item_parent'];

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} else {

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$parent_db_id = 0;

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}

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$parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );

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if ( ! is_wp_error( $parent_object ) ) {

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$parent_data = (array) $parent_object;

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/*

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* If there is something before the parent and parent a child of it,

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* make menu item a child also of it.

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*/

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if ( ! empty( $dbids_to_orders[ $parent_db_id ] )

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&& ! empty( $orders_to_dbids[ $dbids_to_orders[ $parent_db_id ] - 1 ] )

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&& ! empty( $parent_data['menu_item_parent'] )

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) {

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$menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];

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/*

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* Else if there is something before parent and parent not a child of it,

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* make menu item a child of that something's parent

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*/

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} elseif ( ! empty( $dbids_to_orders[ $parent_db_id ] )

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&& ! empty( $orders_to_dbids[ $dbids_to_orders[ $parent_db_id ] - 1 ] )

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) {

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$_possible_parent_id = (int) get_post_meta( $orders_to_dbids[ $dbids_to_orders[ $parent_db_id ] - 1 ], '_menu_item_menu_item_parent', true );

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if ( in_array( $_possible_parent_id, array_keys( $dbids_to_orders ), true ) ) {

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$menu_item_data['menu_item_parent'] = $_possible_parent_id;

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} else {

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$menu_item_data['menu_item_parent'] = 0;

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}

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// Else there isn't something before the parent.

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} else {

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$menu_item_data['menu_item_parent'] = 0;

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}

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// Set former parent's [menu_order] to that of menu-item's.

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$parent_data['menu_order'] = $parent_data['menu_order'] + 1;

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// Set menu-item's [menu_order] to that of former parent.

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$menu_item_data['menu_order'] = $menu_item_data['menu_order'] - 1;

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// Save changes.

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update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );

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wp_update_post( $menu_item_data );

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wp_update_post( $parent_data );

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}

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// Else this menu item is not a child of the previous.

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} elseif ( empty( $menu_item_data['menu_order'] )

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|| empty( $menu_item_data['menu_item_parent'] )

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|| ! in_array( (int) $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ), true )

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|| empty( $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ] )

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|| $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ] !== (int) $menu_item_data['menu_item_parent']

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) {

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// Just make it a child of the previous; keep the order.

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$menu_item_data['menu_item_parent'] = (int) $orders_to_dbids[ $dbids_to_orders[ $menu_item_id ] - 1 ];

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update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );

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wp_update_post( $menu_item_data );

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}

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}

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}

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}

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break;

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case 'delete-menu-item':

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$menu_item_id = (int) $_REQUEST['menu-item'];

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check_admin_referer( 'delete-menu_item_' . $menu_item_id );

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if ( is_nav_menu_item( $menu_item_id ) && wp_delete_post( $menu_item_id, true ) ) {

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$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'The menu item has been successfully deleted.' ) . '</p></div>';

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}

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break;

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case 'delete':

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check_admin_referer( 'delete-nav_menu-' . $nav_menu_selected_id );

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if ( is_nav_menu( $nav_menu_selected_id ) ) {

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$deletion = wp_delete_nav_menu( $nav_menu_selected_id );

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} else {

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// Reset the selected menu.

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$nav_menu_selected_id = 0;

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unset( $_REQUEST['menu'] );

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}

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if ( ! isset( $deletion ) ) {

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break;

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}

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if ( is_wp_error( $deletion ) ) {

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$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $deletion->get_error_message() . '</p></div>';

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} else {

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$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'The menu has been successfully deleted.' ) . '</p></div>';

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}

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break;

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case 'delete_menus':

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check_admin_referer( 'nav_menus_bulk_actions' );

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foreach ( $_REQUEST['delete_menus'] as $menu_id_to_delete ) {

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if ( ! is_nav_menu( $menu_id_to_delete ) ) {

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continue;

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}

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$deletion = wp_delete_nav_menu( $menu_id_to_delete );

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if ( is_wp_error( $deletion ) ) {

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$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $deletion->get_error_message() . '</p></div>';

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$deletion_error = true;

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}

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}

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if ( empty( $deletion_error ) ) {

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$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'Selected menus have been successfully deleted.' ) . '</p></div>';

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}

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break;

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case 'update':

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check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );

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// Merge new and existing menu locations if any new ones are set.

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if ( isset( $_POST['menu-locations'] ) ) {

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$new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );

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$menu_locations = array_merge( $menu_locations, $new_menu_locations );

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}

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// Add Menu.

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if ( 0 === $nav_menu_selected_id ) {

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$new_menu_title = trim( esc_html( $_POST['menu-name'] ) );

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if ( $new_menu_title ) {

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$_nav_menu_selected_id = wp_update_nav_menu_object( 0, array( 'menu-name' => $new_menu_title ) );

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if ( is_wp_error( $_nav_menu_selected_id ) ) {

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$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';

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} else {

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$_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );

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$nav_menu_selected_id = $_nav_menu_selected_id;

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$nav_menu_selected_title = $_menu_object->name;

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if ( isset( $_REQUEST['menu-item'] ) ) {

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wp_save_nav_menu_items( $nav_menu_selected_id, absint( $_REQUEST['menu-item'] ) );

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}

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if ( isset( $_REQUEST['zero-menu-state'] ) || ! empty( $_POST['auto-add-pages'] ) ) {

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// If there are menu items, add them.

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wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title );

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}

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if ( isset( $_REQUEST['zero-menu-state'] ) ) {

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// Auto-save nav_menu_locations.

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$locations = get_nav_menu_locations();

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foreach ( $locations as $location => $menu_id ) {

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$locations[ $location ] = $nav_menu_selected_id;

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break; // There should only be 1.

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}

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set_theme_mod( 'nav_menu_locations', $locations );

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}

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if ( isset( $_REQUEST['use-location'] ) ) {

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$locations = get_registered_nav_menus();

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$menu_locations = get_nav_menu_locations();

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if ( isset( $locations[ $_REQUEST['use-location'] ] ) ) {

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$menu_locations[ $_REQUEST['use-location'] ] = $nav_menu_selected_id;

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}

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[365] Fix | Delete

set_theme_mod( 'nav_menu_locations', $menu_locations );

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}

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wp_redirect( admin_url( 'nav-menus.php?menu=' . $_nav_menu_selected_id ) );

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exit;

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}

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} else {

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$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';

[373] Fix | Delete

}

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// Update existing menu.

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} else {

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// Remove menu locations that have been unchecked.

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foreach ( $locations as $location => $description ) {

[379] Fix | Delete

if ( ( empty( $_POST['menu-locations'] ) || empty( $_POST['menu-locations'][ $location ] ) )

[380] Fix | Delete

&& isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] === $nav_menu_selected_id

[381] Fix | Delete

) {

[382] Fix | Delete

unset( $menu_locations[ $location ] );

[383] Fix | Delete

}

[384] Fix | Delete

}

[385] Fix | Delete

[386] Fix | Delete

// Set menu locations.

[387] Fix | Delete

set_theme_mod( 'nav_menu_locations', $menu_locations );

[388] Fix | Delete

[389] Fix | Delete

$_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );

[390] Fix | Delete

[391] Fix | Delete

$menu_title = trim( esc_html( $_POST['menu-name'] ) );

[392] Fix | Delete

[393] Fix | Delete

if ( ! $menu_title ) {

[394] Fix | Delete

$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';

[395] Fix | Delete

$menu_title = $_menu_object->name;

[396] Fix | Delete

}

[397] Fix | Delete

[398] Fix | Delete

if ( ! is_wp_error( $_menu_object ) ) {

[399] Fix | Delete

$_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $menu_title ) );

[400] Fix | Delete

[401] Fix | Delete

if ( is_wp_error( $_nav_menu_selected_id ) ) {

[402] Fix | Delete

$_menu_object = $_nav_menu_selected_id;

[403] Fix | Delete

$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';

[404] Fix | Delete

} else {

[405] Fix | Delete

$_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );

[406] Fix | Delete

$nav_menu_selected_title = $_menu_object->name;

[407] Fix | Delete

}

[408] Fix | Delete

}

[409] Fix | Delete

[410] Fix | Delete

// Update menu items.

[411] Fix | Delete

if ( ! is_wp_error( $_menu_object ) ) {

[412] Fix | Delete

$messages = array_merge( $messages, wp_nav_menu_update_menu_items( $_nav_menu_selected_id, $nav_menu_selected_title ) );

[413] Fix | Delete

[414] Fix | Delete

// If the menu ID changed, redirect to the new URL.

[415] Fix | Delete

if ( $nav_menu_selected_id !== $_nav_menu_selected_id ) {

[416] Fix | Delete

wp_redirect( admin_url( 'nav-menus.php?menu=' . (int) $_nav_menu_selected_id ) );

[417] Fix | Delete

exit;

[418] Fix | Delete

}

[419] Fix | Delete

}

[420] Fix | Delete

}

[421] Fix | Delete

[422] Fix | Delete

break;

[423] Fix | Delete

[424] Fix | Delete

case 'locations':

[425] Fix | Delete

if ( ! $num_locations ) {

[426] Fix | Delete

wp_redirect( admin_url( 'nav-menus.php' ) );

[427] Fix | Delete

exit;

[428] Fix | Delete

}

[429] Fix | Delete

[430] Fix | Delete

add_filter( 'screen_options_show_screen', '__return_false' );

[431] Fix | Delete

[432] Fix | Delete

if ( isset( $_POST['menu-locations'] ) ) {

[433] Fix | Delete

check_admin_referer( 'save-menu-locations' );

[434] Fix | Delete

[435] Fix | Delete

$new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );

[436] Fix | Delete

$menu_locations = array_merge( $menu_locations, $new_menu_locations );

[437] Fix | Delete

// Set menu locations.

[438] Fix | Delete

set_theme_mod( 'nav_menu_locations', $menu_locations );

[439] Fix | Delete

[440] Fix | Delete

$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'Menu locations updated.' ) . '</p></div>';

[441] Fix | Delete

}

[442] Fix | Delete

[443] Fix | Delete

break;

[444] Fix | Delete

}

[445] Fix | Delete

[446] Fix | Delete

// Get all nav menus.

[447] Fix | Delete

$nav_menus = wp_get_nav_menus();

[448] Fix | Delete

$menu_count = count( $nav_menus );

[449] Fix | Delete

[450] Fix | Delete

// Are we on the add new screen?

[451] Fix | Delete

$add_new_screen = ( isset( $_GET['menu'] ) && 0 === (int) $_GET['menu'] ) ? true : false;

[452] Fix | Delete

[453] Fix | Delete

$locations_screen = ( isset( $_GET['action'] ) && 'locations' === $_GET['action'] ) ? true : false;

[454] Fix | Delete

[455] Fix | Delete

$page_count = wp_count_posts( 'page' );

[456] Fix | Delete

[457] Fix | Delete

/*

[458] Fix | Delete

* If we have one theme location, and zero menus, we take them right

[459] Fix | Delete

* into editing their first menu.

[460] Fix | Delete

*/

[461] Fix | Delete

if ( 1 === count( get_registered_nav_menus() ) && ! $add_new_screen

[462] Fix | Delete

&& empty( $nav_menus ) && ! empty( $page_count->publish )

[463] Fix | Delete

) {

[464] Fix | Delete

$one_theme_location_no_menus = true;

[465] Fix | Delete

} else {

[466] Fix | Delete

$one_theme_location_no_menus = false;

[467] Fix | Delete

}

[468] Fix | Delete

[469] Fix | Delete

$nav_menus_l10n = array(

[470] Fix | Delete

'oneThemeLocationNoMenus' => $one_theme_location_no_menus,

[471] Fix | Delete

'moveUp' => __( 'Move up one' ),

[472] Fix | Delete

'moveDown' => __( 'Move down one' ),

[473] Fix | Delete

'moveToTop' => __( 'Move to the top' ),

[474] Fix | Delete

/* translators: %s: Previous item name. */

[475] Fix | Delete

'moveUnder' => __( 'Move under %s' ),

[476] Fix | Delete

/* translators: %s: Previous item name. */

[477] Fix | Delete

'moveOutFrom' => __( 'Move out from under %s' ),

[478] Fix | Delete

/* translators: %s: Previous item name. */

[479] Fix | Delete

'under' => __( 'Under %s' ),

[480] Fix | Delete

/* translators: %s: Previous item name. */

[481] Fix | Delete

'outFrom' => __( 'Out from under %s' ),

[482] Fix | Delete

/* translators: 1: Item name, 2: Item position, 3: Total number of items. */

[483] Fix | Delete

'menuFocus' => __( '%1$s. Menu item %2$d of %3$d.' ),

[484] Fix | Delete

/* translators: 1: Item name, 2: Item position, 3: Parent item name. */

[485] Fix | Delete

'subMenuFocus' => __( '%1$s. Sub item number %2$d under %3$s.' ),

[486] Fix | Delete

);

[487] Fix | Delete

wp_localize_script( 'nav-menu', 'menus', $nav_menus_l10n );

[488] Fix | Delete

[489] Fix | Delete

/*

[490] Fix | Delete

* Redirect to add screen if there are no menus and this users has either zero,

[491] Fix | Delete

* or more than 1 theme locations.

[492] Fix | Delete

*/

[493] Fix | Delete

if ( 0 === $menu_count && ! $add_new_screen && ! $one_theme_location_no_menus ) {

[494] Fix | Delete

wp_redirect( admin_url( 'nav-menus.php?action=edit&menu=0' ) );

[495] Fix | Delete

}

[496] Fix | Delete

[497] Fix | Delete

// Get recently edited nav menu.

[498] Fix | Delete

$recently_edited = absint( get_user_option( 'nav_menu_recently_edited' ) );

[499] Fix | Delete