Global styles controllers: extend with WP_REST_Posts_Controller and WP_REST_Revisions_Controller

src/wp-includes/class-wp-post-type.php

@@ -913,6 +913,7 @@ public function get_revisions_rest_controller() {
 	 * Will only instantiate the controller class once per request.
 	 *
 	 * @since 6.4.0
+	 * @since 6.5.0 Prevents autosave class instantiation for wp_global_styles post types.
 	 *
 	 * @return WP_REST_Controller|null The controller instance, or null if the post type
 	 *                                 is set not to show in rest.
@@ -922,7 +923,7 @@ public function get_autosave_rest_controller() {
 			return null;
 		}
 
-		if ( 'attachment' === $this->name ) {
+		if ( in_array( $this->name, array( 'attachment', 'wp_global_styles' ), true ) ) {
 			return null;
 		}
 

src/wp-includes/post.php

@@ -473,15 +473,19 @@ function create_initial_post_types() {
 	register_post_type(
 		'wp_global_styles',
 		array(
-			'label'        => _x( 'Global Styles', 'post type general name' ),
-			'description'  => __( 'Global styles to include in themes.' ),
-			'public'       => false,
-			'_builtin'     => true, /* internal use only. don't use this when registering your own post type. */
-			'_edit_link'   => '/site-editor.php?canvas=edit', /* internal use only. don't use this when registering your own post type. */
-			'show_ui'      => false,
-			'show_in_rest' => false,
-			'rewrite'      => false,
-			'capabilities' => array(
+			'label'                           => _x( 'Global Styles', 'post type general name' ),
+			'description'                     => __( 'Global styles to include in themes.' ),
+			'public'                          => false,
+			'_builtin'                        => true, /* internal use only. don't use this when registering your own post type. */
+			'_edit_link'                      => '/site-editor.php?canvas=edit', /* internal use only. don't use this when registering your own post type. */
+			'show_ui'                         => false,
+			'show_in_rest'                    => true,
+			'rewrite'                         => false,
+			'rest_base'                       => 'global-styles',
+			'rest_controller_class'           => 'WP_REST_Global_Styles_Controller',
+			'revisions_rest_controller_class' => 'WP_REST_Global_Styles_Revisions_Controller',
+			'late_route_registration'         => true,
+			'capabilities'                    => array(
 				'read'                   => 'edit_theme_options',
 				'create_posts'           => 'edit_theme_options',
 				'edit_posts'             => 'edit_theme_options',
@@ -490,8 +494,8 @@ function create_initial_post_types() {
 				'edit_others_posts'      => 'edit_theme_options',
 				'delete_others_posts'    => 'edit_theme_options',
 			),
-			'map_meta_cap' => true,
-			'supports'     => array(
+			'map_meta_cap'                    => true,
+			'supports'                        => array(
 				'title',
 				'editor',
 				'revisions',

src/wp-includes/rest-api.php

@@ -323,14 +323,6 @@ function create_initial_rest_routes() {
 	$controller = new WP_REST_Block_Types_Controller();
 	$controller->register_routes();
 
-	// Global Styles revisions.
-	$controller = new WP_REST_Global_Styles_Revisions_Controller();
-	$controller->register_routes();
-
-	// Global Styles.
-	$controller = new WP_REST_Global_Styles_Controller();
-	$controller->register_routes();
-
 	// Settings.
 	$controller = new WP_REST_Settings_Controller();
 	$controller->register_routes();

src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php

@@ -10,24 +10,20 @@
 /**
  * Base Global Styles REST API Controller.
  */
-class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
-
-	/**
-	 * Post type.
-	 *
-	 * @since 5.9.0
-	 * @var string
-	 */
-	protected $post_type;
-
+class WP_REST_Global_Styles_Controller extends WP_REST_Posts_Controller {
 	/**
 	 * Constructor.
+	 *
 	 * @since 5.9.0
+	 * @since 6.5.0 Extends class from WP_REST_Posts_Controller.
+	 *
+	 * @param string $post_type Post type.
 	 */
-	public function __construct() {
-		$this->namespace = 'wp/v2';
-		$this->rest_base = 'global-styles';
-		$this->post_type = 'wp_global_styles';
+	public function __construct( $post_type ) {
+		$this->post_type = $post_type;
+		$obj             = get_post_type_object( $post_type );
+		$this->rest_base = ! empty( $obj->rest_base ) ? $obj->rest_base : $obj->name;
+		$this->namespace = ! empty( $obj->rest_namespace ) ? $obj->rest_namespace : 'wp/v2';
 	}
 
 	/**
@@ -194,7 +190,7 @@ public function get_item_permissions_check( $request ) {
 	 * @param WP_Post $post Post object.
 	 * @return bool Whether the post can be read.
 	 */
-	protected function check_read_permission( $post ) {
+	public function check_read_permission( $post ) {
 		return current_user_can( 'read_post', $post->ID );
 	}
 
@@ -241,18 +237,6 @@ public function update_item_permissions_check( $request ) {
 		return true;
 	}
 
-	/**
-	 * Checks if a global style can be edited.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @param WP_Post $post Post object.
-	 * @return bool Whether the post can be edited.
-	 */
-	protected function check_update_permission( $post ) {
-		return current_user_can( 'edit_post', $post->ID );
-	}
-
 	/**
 	 * Updates a single global style config.
 	 *
@@ -407,7 +391,7 @@ public function prepare_item_for_response( $post, $request ) {
 			$links = $this->prepare_links( $post->ID );
 			$response->add_links( $links );
 			if ( ! empty( $links['self']['href'] ) ) {
-				$actions = $this->get_available_actions();
+				$actions = $this->get_available_actions( $post, $request );
 				$self    = $links['self']['href'];
 				foreach ( $actions as $rel ) {
 					$response->add_link( $rel, $self );
@@ -431,9 +415,12 @@ protected function prepare_links( $id ) {
 		$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
 
 		$links = array(
-			'self' => array(
+			'self'  => array(
 				'href' => rest_url( trailingslashit( $base ) . $id ),
 			),
+			'about' => array(
+				'href' => rest_url( 'wp/v2/types/' . $this->post_type ),
+			),
 		);
 
 		if ( post_type_supports( $this->post_type, 'revisions' ) ) {
@@ -457,10 +444,10 @@ protected function prepare_links( $id ) {
 	 *
 	 * @return array List of link relations.
 	 */
-	protected function get_available_actions() {
+	protected function get_available_actions( $post, $request ) {
 		$rels = array();
 
-		$post_type = get_post_type_object( $this->post_type );
+		$post_type = get_post_type_object( $post->post_type );
 		if ( current_user_can( $post_type->cap->publish_posts ) ) {
 			$rels[] = 'https://api.w.org/action-publish';
 		}
@@ -472,21 +459,6 @@ protected function get_available_actions() {
 		return $rels;
 	}
 
-	/**
-	 * Overwrites the default protected title format.
-	 *
-	 * By default, WordPress will show password protected posts with a title of
-	 * "Protected: %s", as the REST API communicates the protected status of a post
-	 * in a machine readable format, we remove the "Protected: " prefix.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @return string Protected title format.
-	 */
-	public function protected_title_format() {
-		return '%s';
-	}
-
 	/**
 	 * Retrieves the query params for the global styles collection.
 	 *