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SimplePie
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assets
block-bindings
block-patterns
block-supports
blocks
certificates
css
customize
fonts
html-api
images
interactivity-api
js
l10n
php-compat
pomo
rest-api
sitemaps
sodium_compat
style-engine
theme-compat
widgets
Files:
admin-bar.php
atomlib.php
author-template.php
block-bindings.php
block-editor.php
block-patterns.php
block-template-utils.php
block-template.php
blocks.php
bookmark-template.php
bookmark.php
cache-compat.php
cache.php
canonical.php
capabilities.php
category-template.php
category.php
class-IXR.php
class-avif-info.php
class-feed.php
class-http.php
class-json.php
class-oembed.php
class-phpass.php
class-phpmailer.php
class-pop3.php
class-requests.php
class-simplepie.php
class-smtp.php
class-snoopy.php
class-walker-category-dropdown.php
class-walker-category.php
class-walker-comment.php
class-walker-nav-menu.php
class-walker-page-dropdown.php
class-walker-page.php
class-wp-admin-bar.php
class-wp-ajax-response.php
class-wp-application-passwords.php
class-wp-block-bindings-registry.php
class-wp-block-bindings-source.php
class-wp-block-editor-context.php
class-wp-block-list.php
class-wp-block-parser-block.php
class-wp-block-parser-frame.php
class-wp-block-parser.php
class-wp-block-pattern-categories-registry.php
class-wp-block-patterns-registry.php
class-wp-block-styles-registry.php
class-wp-block-supports.php
class-wp-block-template.php
class-wp-block-type-registry.php
class-wp-block-type.php
class-wp-block.php
class-wp-classic-to-block-menu-converter.php
class-wp-comment-query.php
class-wp-comment.php
class-wp-customize-control.php
class-wp-customize-manager.php
class-wp-customize-nav-menus.php
class-wp-customize-panel.php
class-wp-customize-section.php
class-wp-customize-setting.php
class-wp-customize-widgets.php
class-wp-date-query.php
class-wp-dependencies.php
class-wp-dependency.php
class-wp-duotone.php
class-wp-editor.php
class-wp-embed.php
class-wp-error.php
class-wp-fatal-error-handler.php
class-wp-feed-cache-transient.php
class-wp-feed-cache.php
class-wp-hook.php
class-wp-http-cookie.php
class-wp-http-curl.php
class-wp-http-encoding.php
class-wp-http-ixr-client.php
class-wp-http-proxy.php
class-wp-http-requests-hooks.php
class-wp-http-requests-response.php
class-wp-http-response.php
class-wp-http-streams.php
class-wp-http.php
class-wp-image-editor-gd.php
class-wp-image-editor-imagick.php
class-wp-image-editor.php
class-wp-list-util.php
class-wp-locale-switcher.php
class-wp-locale.php
class-wp-matchesmapregex.php
class-wp-meta-query.php
class-wp-metadata-lazyloader.php
class-wp-navigation-fallback.php
class-wp-network-query.php
class-wp-network.php
class-wp-object-cache.php
class-wp-oembed-controller.php
class-wp-oembed.php
class-wp-paused-extensions-storage.php
class-wp-plugin-dependencies.php
class-wp-post-type.php
class-wp-post.php
class-wp-query.php
class-wp-recovery-mode-cookie-service.php
class-wp-recovery-mode-email-service.php
class-wp-recovery-mode-key-service.php
class-wp-recovery-mode-link-service.php
class-wp-recovery-mode.php
class-wp-rewrite.php
class-wp-role.php
class-wp-roles.php
class-wp-script-modules.php
class-wp-scripts.php
class-wp-session-tokens.php
class-wp-simplepie-file.php
class-wp-simplepie-sanitize-kses.php
class-wp-site-query.php
class-wp-site.php
class-wp-styles.php
class-wp-tax-query.php
class-wp-taxonomy.php
class-wp-term-query.php
class-wp-term.php
class-wp-text-diff-renderer-inline.php
class-wp-text-diff-renderer-table.php
class-wp-textdomain-registry.php
class-wp-theme-json-data.php
class-wp-theme-json-resolver.php
class-wp-theme-json-schema.php
class-wp-theme-json.php
class-wp-theme.php
class-wp-user-meta-session-tokens.php
class-wp-user-query.php
class-wp-user-request.php
class-wp-user.php
class-wp-walker.php
class-wp-widget-factory.php
class-wp-widget.php
class-wp-xmlrpc-server.php
class-wp.php
class-wpdb.php
class.wp-dependencies.php
class.wp-scripts.php
class.wp-styles.php
comment-template.php
comment.php
compat.php
cron.php
date.php
default-constants.php
default-filters.php
default-widgets.php
deprecated.php
embed-template.php
embed.php
error-protection.php
feed-atom-comments.php
feed-atom.php
feed-rdf.php
feed-rss.php
feed-rss2-comments.php
feed-rss2.php
feed.php
fonts.php
formatting.php
functions.php
functions.wp-scripts.php
functions.wp-styles.php
general-template.php
global-styles-and-settings.php
http.php
https-detection.php
https-migration.php
kses.php
l10n.php
link-template.php
load.php
locale.php
media-template.php
media.php
meta.php
ms-blogs.php
ms-default-constants.php
ms-default-filters.php
ms-deprecated.php
ms-files.php
ms-functions.php
ms-load.php
ms-network.php
ms-settings.php
ms-site.php
nav-menu-template.php
nav-menu.php
option.php
pluggable-deprecated.php
pluggable.php
plugin.php
post-formats.php
post-template.php
post-thumbnail-template.php
post.php
query.php
registration-functions.php
registration.php
rest-api.php
revision.php
rewrite.php
robots-template.php
rss-functions.php
rss.php
script-loader.php
script-modules.php
session.php
shortcodes.php
sitemaps.php
spl-autoload-compat.php
style-engine.php
taxonomy.php
template-canvas.php
template-loader.php
template.php
theme-previews.php
theme-templates.php
theme.php
update.php
user.php
vars.php
version.php
widgets.php
wp-db.php
wp-diff.php
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Edit File: class-wp-navigation-fallback.php
<?php /** * WP_Navigation_Fallback class * * Manages fallback behavior for Navigation menus. * * @package WordPress * @subpackage Navigation * @since 6.3.0 */ /** * Manages fallback behavior for Navigation menus. * * @access public * @since 6.3.0 */ class WP_Navigation_Fallback { /** * Updates the wp_navigation custom post type schema, in order to expose * additional fields in the embeddable links of WP_REST_Navigation_Fallback_Controller. * * The Navigation Fallback endpoint may embed the full Navigation Menu object * into the response as the `self` link. By default, the Posts Controller * will only expose a limited subset of fields but the editor requires * additional fields to be available in order to utilize the menu. * * Used with the `rest_wp_navigation_item_schema` hook. * * @since 6.4.0 * * @param array $schema The schema for the `wp_navigation` post. * @return array The modified schema. */ public static function update_wp_navigation_post_schema( $schema ) { // Expose top level fields. $schema['properties']['status']['context'] = array_merge( $schema['properties']['status']['context'], array( 'embed' ) ); $schema['properties']['content']['context'] = array_merge( $schema['properties']['content']['context'], array( 'embed' ) ); /* * Exposes sub properties of content field. * These sub properties aren't exposed by the posts controller by default, * for requests where context is `embed`. * * @see WP_REST_Posts_Controller::get_item_schema() */ $schema['properties']['content']['properties']['raw']['context'] = array_merge( $schema['properties']['content']['properties']['raw']['context'], array( 'embed' ) ); $schema['properties']['content']['properties']['rendered']['context'] = array_merge( $schema['properties']['content']['properties']['rendered']['context'], array( 'embed' ) ); $schema['properties']['content']['properties']['block_version']['context'] = array_merge( $schema['properties']['content']['properties']['block_version']['context'], array( 'embed' ) ); /* * Exposes sub properties of title field. * These sub properties aren't exposed by the posts controller by default, * for requests where context is `embed`. * * @see WP_REST_Posts_Controller::get_item_schema() */ $schema['properties']['title']['properties']['raw']['context'] = array_merge( $schema['properties']['title']['properties']['raw']['context'], array( 'embed' ) ); return $schema; } /** * Gets (and/or creates) an appropriate fallback Navigation Menu. * * @since 6.3.0 * * @return WP_Post|null the fallback Navigation Post or null. */ public static function get_fallback() { /** * Filters whether or not a fallback should be created. * * @since 6.3.0 * * @param bool $create Whether to create a fallback navigation menu. Default true. */ $should_create_fallback = apply_filters( 'wp_navigation_should_create_fallback', true ); $fallback = static::get_most_recently_published_navigation(); if ( $fallback || ! $should_create_fallback ) { return $fallback; } $fallback = static::create_classic_menu_fallback(); if ( $fallback && ! is_wp_error( $fallback ) ) { // Return the newly created fallback post object which will now be the most recently created navigation menu. return $fallback instanceof WP_Post ? $fallback : static::get_most_recently_published_navigation(); } $fallback = static::create_default_fallback(); if ( $fallback && ! is_wp_error( $fallback ) ) { // Return the newly created fallback post object which will now be the most recently created navigation menu. return $fallback instanceof WP_Post ? $fallback : static::get_most_recently_published_navigation(); } return null; } /** * Finds the most recently published `wp_navigation` post type. * * @since 6.3.0 * * @return WP_Post|null the first non-empty Navigation or null. */ private static function get_most_recently_published_navigation() { $parsed_args = array( 'post_type' => 'wp_navigation', 'no_found_rows' => true, 'update_post_meta_cache' => false, 'update_post_term_cache' => false, 'order' => 'DESC', 'orderby' => 'date', 'post_status' => 'publish', 'posts_per_page' => 1, ); $navigation_post = new WP_Query( $parsed_args ); if ( count( $navigation_post->posts ) > 0 ) { return $navigation_post->posts[0]; } return null; } /** * Creates a Navigation Menu post from a Classic Menu. * * @since 6.3.0 * * @return int|WP_Error The post ID of the default fallback menu or a WP_Error object. */ private static function create_classic_menu_fallback() { // See if we have a classic menu. $classic_nav_menu = static::get_fallback_classic_menu(); if ( ! $classic_nav_menu ) { return new WP_Error( 'no_classic_menus', __( 'No Classic Menus found.' ) ); } // If there is a classic menu then convert it to blocks. $classic_nav_menu_blocks = WP_Classic_To_Block_Menu_Converter::convert( $classic_nav_menu ); if ( is_wp_error( $classic_nav_menu_blocks ) ) { return $classic_nav_menu_blocks; } if ( empty( $classic_nav_menu_blocks ) ) { return new WP_Error( 'cannot_convert_classic_menu', __( 'Unable to convert Classic Menu to blocks.' ) ); } // Create a new navigation menu from the classic menu. $classic_menu_fallback = wp_insert_post( array( 'post_content' => $classic_nav_menu_blocks, 'post_title' => $classic_nav_menu->name, 'post_name' => $classic_nav_menu->slug, 'post_status' => 'publish', 'post_type' => 'wp_navigation', ), true // So that we can check whether the result is an error. ); return $classic_menu_fallback; } /** * Determines the most appropriate classic navigation menu to use as a fallback. * * @since 6.3.0 * * @return WP_Term|null The most appropriate classic navigation menu to use as a fallback. */ private static function get_fallback_classic_menu() { $classic_nav_menus = wp_get_nav_menus(); if ( ! $classic_nav_menus || is_wp_error( $classic_nav_menus ) ) { return null; } $nav_menu = static::get_nav_menu_at_primary_location(); if ( $nav_menu ) { return $nav_menu; } $nav_menu = static::get_nav_menu_with_primary_slug( $classic_nav_menus ); if ( $nav_menu ) { return $nav_menu; } return static::get_most_recently_created_nav_menu( $classic_nav_menus ); } /** * Sorts the classic menus and returns the most recently created one. * * @since 6.3.0 * * @param WP_Term[] $classic_nav_menus Array of classic nav menu term objects. * @return WP_Term The most recently created classic nav menu. */ private static function get_most_recently_created_nav_menu( $classic_nav_menus ) { usort( $classic_nav_menus, static function ( $a, $b ) { return $b->term_id - $a->term_id; } ); return $classic_nav_menus[0]; } /** * Returns the classic menu with the slug `primary` if it exists. * * @since 6.3.0 * * @param WP_Term[] $classic_nav_menus Array of classic nav menu term objects. * @return WP_Term|null The classic nav menu with the slug `primary` or null. */ private static function get_nav_menu_with_primary_slug( $classic_nav_menus ) { foreach ( $classic_nav_menus as $classic_nav_menu ) { if ( 'primary' === $classic_nav_menu->slug ) { return $classic_nav_menu; } } return null; } /** * Gets the classic menu assigned to the `primary` navigation menu location * if it exists. * * @since 6.3.0 * * @return WP_Term|null The classic nav menu assigned to the `primary` location or null. */ private static function get_nav_menu_at_primary_location() { $locations = get_nav_menu_locations(); if ( isset( $locations['primary'] ) ) { $primary_menu = wp_get_nav_menu_object( $locations['primary'] ); if ( $primary_menu ) { return $primary_menu; } } return null; } /** * Creates a default Navigation Block Menu fallback. * * @since 6.3.0 * * @return int|WP_Error The post ID of the default fallback menu or a WP_Error object. */ private static function create_default_fallback() { $default_blocks = static::get_default_fallback_blocks(); // Create a new navigation menu from the fallback blocks. $default_fallback = wp_insert_post( array( 'post_content' => $default_blocks, 'post_title' => _x( 'Navigation', 'Title of a Navigation menu' ), 'post_name' => 'navigation', 'post_status' => 'publish', 'post_type' => 'wp_navigation', ), true // So that we can check whether the result is an error. ); return $default_fallback; } /** * Gets the rendered markup for the default fallback blocks. * * @since 6.3.0 * * @return string default blocks markup to use a the fallback. */ private static function get_default_fallback_blocks() { $registry = WP_Block_Type_Registry::get_instance(); // If `core/page-list` is not registered then use empty blocks. return $registry->is_registered( 'core/page-list' ) ? '<!-- wp:page-list /-->' : ''; } }
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