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