Feature: Set editor rendering mode by post type

lib/compat/wordpress-6.6/class-gutenberg-rest-post-types-controller-6-6.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * REST API: Gutenberg_REST_Post_Types_Controller_6_6 class
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Gutenberg_REST_Post_Types_Controller_6_6 class
+ *
+ * Add Block Editor default rendering mode to the post type response
+ * to allow enabling/disabling at the post type level.
+ */
+class Gutenberg_REST_Post_Types_Controller_6_6 extends WP_REST_Post_Types_Controller {
+	/**
+	 * Add Block Editor default rendering mode setting to the response.
+	 *
+	 * @param WP_Post_Type      $item    Post type object.
+	 * @param WP_REST_Request   $request Request object.
+	 * @return WP_REST_Response Response object.
+	 */
+	public function prepare_item_for_response( $item, $request ) {
+		$response = parent::prepare_item_for_response( $item, $request );
+		$context  = ! empty( $request['context'] ) ? $request['context'] : 'view';
+
+		// Property will only exist if the post type supports the block editor.
+		if ( 'edit' === $context && property_exists( $item, 'rendering_mode' ) ) {
+			/**
+			 * Filters the block editor rendering mode for a specific post type.
+			 *
+			 * The dynamic portion of the hook name, `$item->name`, refers to the post type slug.
+			 *
+			 * @since 6.6.0
+			 * @param string       $default_rendering_mode Default rendering mode for the post type.
+			 * @param WP_Post_Type $post_type              Post type object.
+			 * @return string Default rendering mode for the post type.
+			 */
+			$rendering_mode = apply_filters( "{$item->name}_default_rendering_mode", $item->rendering_mode, $item );
+
+			/**
+			 * Filters the block editor rendering mode for a post type.
+			 *
+			 * @since 6.6.0
+			 * @param string $default_rendering_mode Default rendering mode for the post type.
+			 * @param string $post_type              Post type name.
+			 * @return string Default rendering mode for the post type.
+			 */
+			$response->data['rendering_mode'] = apply_filters( 'post_type_default_rendering_mode', $rendering_mode, $item->name );
+		}
+
+		return rest_ensure_response( $response );
+	}
+}

lib/compat/wordpress-6.6/post.php

@@ -11,9 +11,28 @@
 function gutenberg_add_excerpt_support_to_wp_block() {
 	add_post_type_support( 'wp_block', 'excerpt' );
 }
-
 add_action( 'init', 'gutenberg_add_excerpt_support_to_wp_block' );
 
+/**
+ * Add the rendering_mode property to the WP_Post_Type object.
+ * This property can be overwritten by using the post_type_default_rendering_mode filter.
+ *
+ * @param array  $args      Array of post type arguments.
+ * @return array Updated array of post type arguments.
+ */
+function gutenberg_post_type_default_rendering_mode( $args ) {
+	if (
+		( isset( $args['show_in_rest'] ) && $args['show_in_rest'] ) &&
+		( isset( $args['supports'] ) && in_array( 'editor', $args['supports'], true ) ) &&
+		( ! isset( $args['rendering_mode'] ) )
+	) {
+		$args['rendering_mode'] = 'post-only';
+	}
+
+	return $args;
+}
+add_filter( 'register_post_type_args', 'gutenberg_post_type_default_rendering_mode', 10, 1 );
+
 /**
  * Updates the labels for the template post type.
  *

lib/compat/wordpress-6.6/rest-api.php

@@ -77,6 +77,16 @@ function gutenberg_add_class_list_to_public_post_types() {
 }
 add_action( 'rest_api_init', 'gutenberg_add_class_list_to_public_post_types' );
 
+if ( ! function_exists( 'gutenberg_add_post_type_rendering_mode' ) ) {
+	/**
+	 * Add Block Editor default rendering mode to the post type response.
+	 */
+	function gutenberg_add_post_type_rendering_mode() {
+		$controller = new Gutenberg_REST_Post_Types_Controller_6_6();
+		$controller->register_routes();
+	}
+}
+add_action( 'rest_api_init', 'gutenberg_add_post_type_rendering_mode' );
 
 /**
  * Registers the Global Styles Revisions REST API routes.

lib/load.php

@@ -49,6 +49,7 @@ function gutenberg_is_experiment_enabled( $name ) {
 	// WordPress 6.6 compat.
 	require __DIR__ . '/compat/wordpress-6.6/class-gutenberg-rest-global-styles-revisions-controller-6-6.php';
 	require __DIR__ . '/compat/wordpress-6.6/class-gutenberg-rest-templates-controller-6-6.php';
+	require __DIR__ . '/compat/wordpress-6.6/class-gutenberg-rest-post-types-controller-6-6.php';
 	require __DIR__ . '/compat/wordpress-6.6/rest-api.php';
 
 	// Plugin specific code.

packages/edit-post/src/editor.js

@@ -31,14 +31,28 @@ function Editor( {
 	initialEdits,
 	...props
 } ) {
+	// Get the rendering mode for the post type.
+	const postTypeRenderingMode = useSelect(
+		( select ) => {
+			const postTypeObject =
+				select( coreStore ).getPostType( initialPostType );
+			if ( postTypeObject && postTypeObject?.rendering_mode ) {
+				return postTypeObject.rendering_mode;
+			}
+
+			return 'post-only';
+		},
+		[ initialPostType ]
+	);
+
 	const {
 		currentPost,
 		onNavigateToEntityRecord,
 		onNavigateToPreviousEntityRecord,
 	} = useNavigateToEntityRecord(
 		initialPostId,
 		initialPostType,
-		'post-only'
+		postTypeRenderingMode
 	);
 
 	const { post, template } = useSelect(
@@ -78,7 +92,7 @@ function Editor( {
 			...settings,
 			onNavigateToEntityRecord,
 			onNavigateToPreviousEntityRecord,
-			defaultRenderingMode: 'post-only',
+			defaultRenderingMode: postTypeRenderingMode,
 		} ),
 		[ settings, onNavigateToEntityRecord, onNavigateToPreviousEntityRecord ]
 	);