Merge pull request #123 from alleyinteractive/feature/issue-48/disable-comments-blocks

Issue-48: `Disable_Comments` should disable its blocks

Author: llflannery

README.md

@@ -60,7 +60,7 @@ admin stability. For technical details on how WP core implements preloading, ref
 
 ### `disable_comments`
 
-This feature disables WordPress comments entirely, including the ability to post, view, edit, list, count, modify settings for, or access URLs that are related to comments completely.
+This feature disables WordPress comments entirely, including the ability to post, view, edit, list, count, modify settings for, or access URLs that are related to comments completely. The blocks are also removed from the Gutenberg block editor.
 
 ### `disable_custom_fields_meta_box`
 

src/alley/wp/alleyvate/features/class-disable-comments.php

@@ -24,6 +24,7 @@ final class Disable_Comments implements Feature {
 	public function boot(): void {
 		add_action( 'add_meta_boxes', [ self::class, 'action__add_meta_boxes' ], 9999 );
 		add_action( 'admin_bar_menu', [ self::class, 'action__admin_bar_menu' ], 9999 );
+		add_action( 'admin_footer', [ self::class, 'action__admin_footer' ], 9999 );
 		add_action( 'admin_init', [ self::class, 'action__admin_init' ], 0 );
 		add_action( 'admin_menu', [ self::class, 'action__admin_menu' ], 9999 );
 		add_action( 'init', [ self::class, 'action__init' ], 9999 );
@@ -54,6 +55,31 @@ public static function action__admin_bar_menu( \WP_Admin_Bar $wp_admin_bar ): vo
 		$wp_admin_bar->remove_node( 'comments' );
 	}
 
+	/**
+	 * Removes blocks related to core/comments from the admin block selector.
+	 * 
+	 * JavaScript is used to selectively remove blocks from the editor.
+	 * The PHP filter for allowed blocks passes ‘true’ to allow all blocks by default,
+	 * so you can’t get the full list of blocks and selectively remove them.
+	 * https://developer.wordpress.org/news/2024/01/how-to-disable-specific-blocks-in-wordpress/#disable-blocks-with-php
+	 */
+	public static function action__admin_footer(): void {
+		echo "
+			<script>
+			if (typeof wp?.domReady === 'function') {
+				wp.domReady(() => {
+					if (typeof wp?.blocks?.unregisterBlockType === 'function') {
+						// Unregister blocks related to core comments.
+						wp.blocks.unregisterBlockType('core/comments');
+						wp.blocks.unregisterBlockType('core/post-comments-form');
+						wp.blocks.unregisterBlockType('core/comments-query-loop');
+						wp.blocks.unregisterBlockType('core/latest-comments');
+					}
+				});
+			}
+			</script>";
+	}
+
 	/**
 	 * Redirects direct requests for the comments list and discussion settings page to the admin dashboard.
 	 */