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- <?php
- /**
- * Server-side rendering of the `core/comment-template` block.
- *
- * @package WordPress
- */
- /**
- * Function that recursively renders a list of nested comments.
- *
- * @global int $comment_depth
- *
- * @param WP_Comment[] $comments The array of comments.
- * @param WP_Block $block Block instance.
- * @return string
- */
- 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;
- }
- $content = '';
- foreach ( $comments as $comment ) {
- $block_content = ( new WP_Block(
- $block->parsed_block,
- array(
- 'commentId' => $comment->comment_ID,
- )
- ) )->render( array( 'dynamic' => false ) );
- $children = $comment->get_children();
- /*
- * We need to create the CSS classes BEFORE recursing into the children.
- * This is because comment_class() uses globals like `$comment_alt`
- * and `$comment_thread_alt` which are order-sensitive.
- *
- * The `false` parameter at the end means that we do NOT want the function
- * to `echo` the output but to return a string.
- * See https://developer.wordpress.org/reference/functions/comment_class/#parameters.
- */
- $comment_classes = comment_class( '', $comment->comment_ID, $comment->comment_post_ID, false );
- // If the comment has children, recurse to create the HTML for the nested
- // comments.
- 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 );
- }
- return $content;
- }
- /**
- * Renders the `core/comment-template` block on the server.
- *
- * @param array $attributes Block attributes.
- * @param string $content Block default content.
- * @param WP_Block $block Block instance.
- *
- * @return string Returns the HTML representing the comments using the layout
- * defined by the block's inner blocks.
- */
- function render_block_core_comment_template( $attributes, $content, $block ) {
- // Bail out early if the post ID is not set for some reason.
- if ( empty( $block->context['postId'] ) ) {
- return '';
- }
- if ( post_password_required( $block->context['postId'] ) ) {
- return;
- }
- $comment_query = new WP_Comment_Query(
- build_comment_query_vars_from_block( $block )
- );
- // Get an array of comments for the current post.
- $comments = $comment_query->get_comments();
- if ( count( $comments ) === 0 ) {
- return '';
- }
- $comment_order = get_option( 'comment_order' );
- if ( 'desc' === $comment_order ) {
- $comments = array_reverse( $comments );
- }
- $wrapper_attributes = get_block_wrapper_attributes();
- return sprintf(
- '<ol %1$s>%2$s</ol>',
- $wrapper_attributes,
- block_core_comment_template_render_comments( $comments, $block )
- );
- }
- /**
- * Registers the `core/comment-template` block on the server.
- */
- function register_block_core_comment_template() {
- register_block_type_from_metadata(
- __DIR__ . '/comment-template',
- array(
- 'render_callback' => 'render_block_core_comment_template',
- 'skip_inner_blocks' => true,
- )
- );
- }
- add_action( 'init', 'register_block_core_comment_template' );
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