Show comment count for Fediverse filter in admin

Adds a comment count badge to the 'Fediverse' filter in the admin comments view and updates the query logic to better handle post type filtering for federated comments.

Author: pfefferle

includes/class-comment.php

@@ -705,7 +705,7 @@ public static function comment_query( $query ) {
 		// Handle admin comment queries.
 		if ( \is_admin() ) {
 			// phpcs:ignore WordPress.Security.NonceVerification.Recommended
-			if ( isset( $_GET['comment_status'] ) && 'federated' === $_GET['comment_status'] && empty( $query->query_vars['count'] ) ) {
+			if ( ( isset( $_GET['comment_status'] ) && 'federated' === $_GET['comment_status'] && empty( $query->query_vars['count'] ) ) || $query->query_vars['post_type'] ) {
 				// Show only comments from hidden post types (Fediverse view).
 				$query->query_vars['post_type'] = self::hide_for();
 				$query->query_vars['status']    = 'all';

includes/wp-admin/class-admin.php

@@ -573,11 +573,20 @@ public static function comment_views( $views ) {
 			$views['all'] = \str_replace( 'current', '', $views['all'] );
 		}
 
+		// Count comments from hidden post types.
+		$count = \get_comments(
+			array(
+				'post_type' => $post_types,
+				'count'     => true,
+			)
+		);
+
 		$views['federated'] = \sprintf(
-			'<a href="%s" class="%s">%s</a>',
+			'<a href="%s" class="%s">%s <span class="count">(%s)</span></a>',
 			\esc_url( \admin_url( 'edit-comments.php?comment_status=federated' ) ),
 			\esc_attr( $current ),
-			\esc_html__( 'Fediverse', 'activitypub' )
+			\esc_html__( 'Fediverse', 'activitypub' ),
+			\esc_html( \number_format_i18n( $count ) )
 		);
 
 		return $views;