652 lines
18 KiB
PHP
652 lines
18 KiB
PHP
<?php
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/**
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* Customize API: WP_Customize_Nav_Menu_Setting class
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*
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* @package WordPress
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* @subpackage Customize
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* @since 4.4.0
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*/
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/**
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* Customize Setting to represent a nav_menu.
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*
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* Subclass of WP_Customize_Setting to represent a nav_menu taxonomy term, and
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* the IDs for the nav_menu_items associated with the nav menu.
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*
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* @since 4.3.0
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*
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* @see wp_get_nav_menu_object()
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* @see WP_Customize_Setting
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*/
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class WP_Customize_Nav_Menu_Setting extends WP_Customize_Setting {
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const ID_PATTERN = '/^nav_menu\[(?P<id>-?\d+)\]$/';
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const TAXONOMY = 'nav_menu';
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const TYPE = 'nav_menu';
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/**
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* Setting type.
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*
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* @since 4.3.0
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* @var string
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*/
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public $type = self::TYPE;
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/**
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* Default setting value.
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*
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* @since 4.3.0
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* @var array
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*
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* @see wp_get_nav_menu_object()
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*/
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public $default = array(
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'name' => '',
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'description' => '',
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'parent' => 0,
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'auto_add' => false,
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);
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/**
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* Default transport.
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*
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* @since 4.3.0
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* @var string
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*/
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public $transport = 'postMessage';
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/**
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* The term ID represented by this setting instance.
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*
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* A negative value represents a placeholder ID for a new menu not yet saved.
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*
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* @since 4.3.0
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* @var int
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*/
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public $term_id;
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/**
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* Previous (placeholder) term ID used before creating a new menu.
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*
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* This value will be exported to JS via the {@see 'customize_save_response'} filter
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* so that JavaScript can update the settings to refer to the newly-assigned
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* term ID. This value is always negative to indicate it does not refer to
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* a real term.
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*
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* @since 4.3.0
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* @var int
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*
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* @see WP_Customize_Nav_Menu_Setting::update()
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* @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response()
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*/
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public $previous_term_id;
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/**
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* Whether or not update() was called.
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*
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* @since 4.3.0
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* @var bool
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*/
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protected $is_updated = false;
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/**
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* Status for calling the update method, used in customize_save_response filter.
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*
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* See {@see 'customize_save_response'}.
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*
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* When status is inserted, the placeholder term ID is stored in `$previous_term_id`.
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* When status is error, the error is stored in `$update_error`.
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*
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* @since 4.3.0
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* @var string updated|inserted|deleted|error
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*
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* @see WP_Customize_Nav_Menu_Setting::update()
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* @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response()
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*/
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public $update_status;
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/**
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* Any error object returned by wp_update_nav_menu_object() when setting is updated.
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*
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* @since 4.3.0
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* @var WP_Error
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*
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* @see WP_Customize_Nav_Menu_Setting::update()
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* @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response()
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*/
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public $update_error;
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/**
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* Constructor.
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*
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* Any supplied $args override class property defaults.
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*
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* @since 4.3.0
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*
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* @throws Exception If $id is not valid for this setting type.
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*
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* @param WP_Customize_Manager $manager Customizer bootstrap instance.
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* @param string $id A specific ID of the setting.
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* Can be a theme mod or option name.
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* @param array $args Optional. Setting arguments.
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*/
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public function __construct( WP_Customize_Manager $manager, $id, array $args = array() ) {
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if ( empty( $manager->nav_menus ) ) {
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throw new Exception( 'Expected WP_Customize_Manager::$nav_menus to be set.' );
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}
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if ( ! preg_match( self::ID_PATTERN, $id, $matches ) ) {
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throw new Exception( "Illegal widget setting ID: $id" );
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}
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$this->term_id = (int) $matches['id'];
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parent::__construct( $manager, $id, $args );
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}
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/**
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* Get the instance data for a given widget setting.
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*
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* @since 4.3.0
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*
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* @see wp_get_nav_menu_object()
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*
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* @return array Instance data.
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*/
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public function value() {
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if ( $this->is_previewed && get_current_blog_id() === $this->_previewed_blog_id ) {
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$undefined = new stdClass(); // Symbol.
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$post_value = $this->post_value( $undefined );
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if ( $undefined === $post_value ) {
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$value = $this->_original_value;
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} else {
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$value = $post_value;
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}
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} else {
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$value = false;
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// Note that a term_id of less than one indicates a nav_menu not yet inserted.
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if ( $this->term_id > 0 ) {
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$term = wp_get_nav_menu_object( $this->term_id );
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if ( $term ) {
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$value = wp_array_slice_assoc( (array) $term, array_keys( $this->default ) );
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$nav_menu_options = (array) get_option( 'nav_menu_options', array() );
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$value['auto_add'] = false;
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if ( isset( $nav_menu_options['auto_add'] ) && is_array( $nav_menu_options['auto_add'] ) ) {
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$value['auto_add'] = in_array( $term->term_id, $nav_menu_options['auto_add'], true );
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}
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}
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}
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if ( ! is_array( $value ) ) {
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$value = $this->default;
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}
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}
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return $value;
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}
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/**
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* Handle previewing the setting.
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*
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* @since 4.3.0
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* @since 4.4.0 Added boolean return value
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*
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* @see WP_Customize_Manager::post_value()
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*
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* @return bool False if method short-circuited due to no-op.
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*/
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public function preview() {
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if ( $this->is_previewed ) {
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return false;
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}
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$undefined = new stdClass();
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$is_placeholder = ( $this->term_id < 0 );
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$is_dirty = ( $undefined !== $this->post_value( $undefined ) );
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if ( ! $is_placeholder && ! $is_dirty ) {
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return false;
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}
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$this->is_previewed = true;
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$this->_original_value = $this->value();
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$this->_previewed_blog_id = get_current_blog_id();
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add_filter( 'wp_get_nav_menus', array( $this, 'filter_wp_get_nav_menus' ), 10, 2 );
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add_filter( 'wp_get_nav_menu_object', array( $this, 'filter_wp_get_nav_menu_object' ), 10, 2 );
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add_filter( 'default_option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) );
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add_filter( 'option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) );
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return true;
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}
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/**
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* Filters the wp_get_nav_menus() result to ensure the inserted menu object is included, and the deleted one is removed.
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*
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* @since 4.3.0
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*
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* @see wp_get_nav_menus()
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*
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* @param WP_Term[] $menus An array of menu objects.
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* @param array $args An array of arguments used to retrieve menu objects.
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* @return WP_Term[] Array of menu objects.
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*/
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public function filter_wp_get_nav_menus( $menus, $args ) {
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if ( get_current_blog_id() !== $this->_previewed_blog_id ) {
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return $menus;
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}
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$setting_value = $this->value();
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$is_delete = ( false === $setting_value );
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$index = -1;
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// Find the existing menu item's position in the list.
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foreach ( $menus as $i => $menu ) {
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if ( (int) $this->term_id === (int) $menu->term_id || (int) $this->previous_term_id === (int) $menu->term_id ) {
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$index = $i;
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break;
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}
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}
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if ( $is_delete ) {
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// Handle deleted menu by removing it from the list.
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if ( -1 !== $index ) {
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array_splice( $menus, $index, 1 );
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}
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} else {
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// Handle menus being updated or inserted.
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$menu_obj = (object) array_merge(
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array(
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'term_id' => $this->term_id,
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'term_taxonomy_id' => $this->term_id,
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'slug' => sanitize_title( $setting_value['name'] ),
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'count' => 0,
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'term_group' => 0,
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'taxonomy' => self::TAXONOMY,
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'filter' => 'raw',
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),
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$setting_value
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);
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array_splice( $menus, $index, ( -1 === $index ? 0 : 1 ), array( $menu_obj ) );
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}
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// Make sure the menu objects get re-sorted after an update/insert.
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if ( ! $is_delete && ! empty( $args['orderby'] ) ) {
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$menus = wp_list_sort(
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$menus,
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array(
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$args['orderby'] => 'ASC',
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)
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);
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}
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// @todo Add support for $args['hide_empty'] === true.
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return $menus;
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}
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/**
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* Temporary non-closure passing of orderby value to function.
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*
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* @since 4.3.0
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* @var string
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*
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* @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus()
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* @see WP_Customize_Nav_Menu_Setting::_sort_menus_by_orderby()
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*/
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protected $_current_menus_sort_orderby;
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/**
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* Sort menu objects by the class-supplied orderby property.
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*
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* This is a workaround for a lack of closures.
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*
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* @since 4.3.0
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* @deprecated 4.7.0 Use wp_list_sort()
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*
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* @param object $menu1
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* @param object $menu2
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* @return int
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*
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* @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus()
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*/
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protected function _sort_menus_by_orderby( $menu1, $menu2 ) {
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_deprecated_function( __METHOD__, '4.7.0', 'wp_list_sort' );
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$key = $this->_current_menus_sort_orderby;
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return strcmp( $menu1->$key, $menu2->$key );
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}
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/**
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* Filters the wp_get_nav_menu_object() result to supply the previewed menu object.
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*
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* Requesting a nav_menu object by anything but ID is not supported.
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*
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* @since 4.3.0
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*
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* @see wp_get_nav_menu_object()
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*
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* @param object|null $menu_obj Object returned by wp_get_nav_menu_object().
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* @param string $menu_id ID of the nav_menu term. Requests by slug or name will be ignored.
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* @return object|null
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*/
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public function filter_wp_get_nav_menu_object( $menu_obj, $menu_id ) {
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$ok = (
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get_current_blog_id() === $this->_previewed_blog_id
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&&
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is_int( $menu_id )
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&&
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$menu_id === $this->term_id
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);
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if ( ! $ok ) {
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return $menu_obj;
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}
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$setting_value = $this->value();
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// Handle deleted menus.
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if ( false === $setting_value ) {
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return false;
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}
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// Handle sanitization failure by preventing short-circuiting.
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if ( null === $setting_value ) {
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return $menu_obj;
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}
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$menu_obj = (object) array_merge(
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array(
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'term_id' => $this->term_id,
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'term_taxonomy_id' => $this->term_id,
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'slug' => sanitize_title( $setting_value['name'] ),
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'count' => 0,
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'term_group' => 0,
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'taxonomy' => self::TAXONOMY,
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'filter' => 'raw',
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),
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$setting_value
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);
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return $menu_obj;
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}
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/**
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* Filters the nav_menu_options option to include this menu's auto_add preference.
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*
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* @since 4.3.0
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*
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* @param array $nav_menu_options Nav menu options including auto_add.
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* @return array (Maybe) modified nav menu options.
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*/
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public function filter_nav_menu_options( $nav_menu_options ) {
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if ( get_current_blog_id() !== $this->_previewed_blog_id ) {
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return $nav_menu_options;
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}
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$menu = $this->value();
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$nav_menu_options = $this->filter_nav_menu_options_value(
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$nav_menu_options,
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$this->term_id,
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false === $menu ? false : $menu['auto_add']
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);
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return $nav_menu_options;
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}
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/**
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* Sanitize an input.
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*
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* Note that parent::sanitize() erroneously does wp_unslash() on $value, but
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* we remove that in this override.
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*
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* @since 4.3.0
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*
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* @param array $value The menu value to sanitize.
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* @return array|false|null Null if an input isn't valid. False if it is marked for deletion.
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* Otherwise the sanitized value.
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*/
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public function sanitize( $value ) {
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// Menu is marked for deletion.
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if ( false === $value ) {
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return $value;
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}
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// Invalid.
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if ( ! is_array( $value ) ) {
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return null;
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}
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$default = array(
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'name' => '',
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'description' => '',
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'parent' => 0,
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'auto_add' => false,
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);
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$value = array_merge( $default, $value );
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$value = wp_array_slice_assoc( $value, array_keys( $default ) );
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$value['name'] = trim( esc_html( $value['name'] ) ); // This sanitization code is used in wp-admin/nav-menus.php.
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$value['description'] = sanitize_text_field( $value['description'] );
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$value['parent'] = max( 0, (int) $value['parent'] );
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$value['auto_add'] = ! empty( $value['auto_add'] );
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if ( '' === $value['name'] ) {
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$value['name'] = _x( '(unnamed)', 'Missing menu name.' );
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}
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/** This filter is documented in wp-includes/class-wp-customize-setting.php */
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return apply_filters( "customize_sanitize_{$this->id}", $value, $this );
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}
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/**
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* Storage for data to be sent back to client in customize_save_response filter.
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*
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* See {@see 'customize_save_response'}.
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*
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* @since 4.3.0
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* @var array
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*
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* @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response()
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*/
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protected $_widget_nav_menu_updates = array();
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/**
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* Create/update the nav_menu term for this setting.
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*
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* Any created menus will have their assigned term IDs exported to the client
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* via the {@see 'customize_save_response'} filter. Likewise, any errors will be exported
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* to the client via the customize_save_response() filter.
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*
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* To delete a menu, the client can send false as the value.
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*
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* @since 4.3.0
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*
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* @see wp_update_nav_menu_object()
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*
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* @param array|false $value {
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* The value to update. Note that slug cannot be updated via wp_update_nav_menu_object().
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* If false, then the menu will be deleted entirely.
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*
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* @type string $name The name of the menu to save.
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* @type string $description The term description. Default empty string.
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* @type int $parent The id of the parent term. Default 0.
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* @type bool $auto_add Whether pages will auto_add to this menu. Default false.
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* }
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* @return null|void
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*/
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protected function update( $value ) {
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if ( $this->is_updated ) {
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return;
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}
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$this->is_updated = true;
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$is_placeholder = ( $this->term_id < 0 );
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$is_delete = ( false === $value );
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add_filter( 'customize_save_response', array( $this, 'amend_customize_save_response' ) );
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$auto_add = null;
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if ( $is_delete ) {
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// If the current setting term is a placeholder, a delete request is a no-op.
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if ( $is_placeholder ) {
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$this->update_status = 'deleted';
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} else {
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$r = wp_delete_nav_menu( $this->term_id );
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if ( is_wp_error( $r ) ) {
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$this->update_status = 'error';
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$this->update_error = $r;
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} else {
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$this->update_status = 'deleted';
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$auto_add = false;
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}
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}
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} else {
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// Insert or update menu.
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$menu_data = wp_array_slice_assoc( $value, array( 'description', 'parent' ) );
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$menu_data['menu-name'] = $value['name'];
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$menu_id = $is_placeholder ? 0 : $this->term_id;
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$r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) );
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$original_name = $menu_data['menu-name'];
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$name_conflict_suffix = 1;
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while ( is_wp_error( $r ) && 'menu_exists' === $r->get_error_code() ) {
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$name_conflict_suffix += 1;
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/* translators: 1: Original menu name, 2: Duplicate count. */
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$menu_data['menu-name'] = sprintf( __( '%1$s (%2$d)' ), $original_name, $name_conflict_suffix );
|
|
$r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) );
|
|
}
|
|
|
|
if ( is_wp_error( $r ) ) {
|
|
$this->update_status = 'error';
|
|
$this->update_error = $r;
|
|
} else {
|
|
if ( $is_placeholder ) {
|
|
$this->previous_term_id = $this->term_id;
|
|
$this->term_id = $r;
|
|
$this->update_status = 'inserted';
|
|
} else {
|
|
$this->update_status = 'updated';
|
|
}
|
|
|
|
$auto_add = $value['auto_add'];
|
|
}
|
|
}
|
|
|
|
if ( null !== $auto_add ) {
|
|
$nav_menu_options = $this->filter_nav_menu_options_value(
|
|
(array) get_option( 'nav_menu_options', array() ),
|
|
$this->term_id,
|
|
$auto_add
|
|
);
|
|
update_option( 'nav_menu_options', $nav_menu_options );
|
|
}
|
|
|
|
if ( 'inserted' === $this->update_status ) {
|
|
// Make sure that new menus assigned to nav menu locations use their new IDs.
|
|
foreach ( $this->manager->settings() as $setting ) {
|
|
if ( ! preg_match( '/^nav_menu_locations\[/', $setting->id ) ) {
|
|
continue;
|
|
}
|
|
|
|
$post_value = $setting->post_value( null );
|
|
if ( ! is_null( $post_value ) && (int) $post_value === $this->previous_term_id ) {
|
|
$this->manager->set_post_value( $setting->id, $this->term_id );
|
|
$setting->save();
|
|
}
|
|
}
|
|
|
|
// Make sure that any nav_menu widgets referencing the placeholder nav menu get updated and sent back to client.
|
|
foreach ( array_keys( $this->manager->unsanitized_post_values() ) as $setting_id ) {
|
|
$nav_menu_widget_setting = $this->manager->get_setting( $setting_id );
|
|
if ( ! $nav_menu_widget_setting || ! preg_match( '/^widget_nav_menu\[/', $nav_menu_widget_setting->id ) ) {
|
|
continue;
|
|
}
|
|
|
|
$widget_instance = $nav_menu_widget_setting->post_value(); // Note that this calls WP_Customize_Widgets::sanitize_widget_instance().
|
|
if ( empty( $widget_instance['nav_menu'] ) || (int) $widget_instance['nav_menu'] !== $this->previous_term_id ) {
|
|
continue;
|
|
}
|
|
|
|
$widget_instance['nav_menu'] = $this->term_id;
|
|
$updated_widget_instance = $this->manager->widgets->sanitize_widget_js_instance( $widget_instance );
|
|
$this->manager->set_post_value( $nav_menu_widget_setting->id, $updated_widget_instance );
|
|
$nav_menu_widget_setting->save();
|
|
|
|
$this->_widget_nav_menu_updates[ $nav_menu_widget_setting->id ] = $updated_widget_instance;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates a nav_menu_options array.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @see WP_Customize_Nav_Menu_Setting::filter_nav_menu_options()
|
|
* @see WP_Customize_Nav_Menu_Setting::update()
|
|
*
|
|
* @param array $nav_menu_options Array as returned by get_option( 'nav_menu_options' ).
|
|
* @param int $menu_id The term ID for the given menu.
|
|
* @param bool $auto_add Whether to auto-add or not.
|
|
* @return array (Maybe) modified nav_menu_options array.
|
|
*/
|
|
protected function filter_nav_menu_options_value( $nav_menu_options, $menu_id, $auto_add ) {
|
|
$nav_menu_options = (array) $nav_menu_options;
|
|
if ( ! isset( $nav_menu_options['auto_add'] ) ) {
|
|
$nav_menu_options['auto_add'] = array();
|
|
}
|
|
|
|
$i = array_search( $menu_id, $nav_menu_options['auto_add'], true );
|
|
|
|
if ( $auto_add && false === $i ) {
|
|
array_push( $nav_menu_options['auto_add'], $this->term_id );
|
|
} elseif ( ! $auto_add && false !== $i ) {
|
|
array_splice( $nav_menu_options['auto_add'], $i, 1 );
|
|
}
|
|
|
|
return $nav_menu_options;
|
|
}
|
|
|
|
/**
|
|
* Export data for the JS client.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @see WP_Customize_Nav_Menu_Setting::update()
|
|
*
|
|
* @param array $data Additional information passed back to the 'saved' event on `wp.customize`.
|
|
* @return array Export data.
|
|
*/
|
|
public function amend_customize_save_response( $data ) {
|
|
if ( ! isset( $data['nav_menu_updates'] ) ) {
|
|
$data['nav_menu_updates'] = array();
|
|
}
|
|
if ( ! isset( $data['widget_nav_menu_updates'] ) ) {
|
|
$data['widget_nav_menu_updates'] = array();
|
|
}
|
|
|
|
$data['nav_menu_updates'][] = array(
|
|
'term_id' => $this->term_id,
|
|
'previous_term_id' => $this->previous_term_id,
|
|
'error' => $this->update_error ? $this->update_error->get_error_code() : null,
|
|
'status' => $this->update_status,
|
|
'saved_value' => 'deleted' === $this->update_status ? null : $this->value(),
|
|
);
|
|
|
|
$data['widget_nav_menu_updates'] = array_merge(
|
|
$data['widget_nav_menu_updates'],
|
|
$this->_widget_nav_menu_updates
|
|
);
|
|
$this->_widget_nav_menu_updates = array();
|
|
|
|
return $data;
|
|
}
|
|
}
|