Comments block: Support nested comments settings in the comments bloc…

…ks (#44351)

* Support nested comments settings in the new blocks

packages/block-library/src/comment-template/index.php

@@ -16,6 +16,8 @@
  */
 function block_core_comment_template_render_comments( $comments, $block ) {
 	global $comment_depth;
+	$thread_comments       = get_option( 'thread_comments' );
+	$thread_comments_depth = get_option( 'thread_comments_depth' );
 
 	if ( empty( $comment_depth ) ) {
 		$comment_depth = 1;
@@ -46,14 +48,22 @@ function block_core_comment_template_render_comments( $comments, $block ) {
 
 		// If the comment has children, recurse to create the HTML for the nested
 		// comments.
-		if ( ! empty( $children ) ) {
-			$comment_depth += 1;
-			$inner_content  = block_core_comment_template_render_comments(
-				$children,
-				$block
-			);
-			$block_content .= sprintf( '<ol>%1$s</ol>', $inner_content );
-			$comment_depth -= 1;
+		if ( ! empty( $children ) && ! empty( $thread_comments ) ) {
+			if ( $comment_depth < $thread_comments_depth ) {
+				$comment_depth += 1;
+				$inner_content  = block_core_comment_template_render_comments(
+					$children,
+					$block
+				);
+				$block_content .= sprintf( '<ol>%1$s</ol>', $inner_content );
+				$comment_depth -= 1;
+			} else {
+				$inner_content  = block_core_comment_template_render_comments(
+					$children,
+					$block
+				);
+				$block_content .= sprintf( $inner_content );
+			}
 		}
 
 		$content .= sprintf( '<li id="comment-%1$s" %2$s>%3$s</li>', $comment->comment_ID, $comment_classes, $block_content );