WordPress/wp-includes/blocks/latest-comments.php

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<?php
/**
* Server-side rendering of the `core/latest-comments` block.
*
* @package WordPress
*/
/**
* Get the post title.
*
* The post title is fetched and if it is blank then a default string is
* returned.
*
* Copied from `wp-admin/includes/template.php`, but we can't include that
* file because:
*
* 1. It causes bugs with test fixture generation and strange Docker 255 error
* codes.
* 2. It's in the admin; ideally we *shouldn't* be including files from the
* admin for a block's output. It's a very small/simple function as well,
* so duplicating it isn't too terrible.
*
* @since 3.3.0
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return string The post title if set; "(no title)" if no title is set.
*/
function wp_latest_comments_draft_or_post_title( $post = 0 ) {
$title = get_the_title( $post );
if ( empty( $title ) ) {
$title = __( '(no title)' );
}
return esc_html( $title );
}
/**
* Renders the `core/latest-comments` block on server.
*
* @param array $attributes The block attributes.
*
* @return string Returns the post content with latest comments added.
*/
function render_block_core_latest_comments( $attributes = array() ) {
// This filter is documented in wp-includes/widgets/class-wp-widget-recent-comments.php.
$comments = get_comments(
apply_filters(
'widget_comments_args',
array(
'number' => $attributes['commentsToShow'],
'status' => 'approve',
'post_status' => 'publish',
)
)
);
$list_items_markup = '';
if ( ! empty( $comments ) ) {
// Prime the cache for associated posts. This is copied from \WP_Widget_Recent_Comments::widget().
$post_ids = array_unique( wp_list_pluck( $comments, 'comment_post_ID' ) );
_prime_post_caches( $post_ids, strpos( get_option( 'permalink_structure' ), '%category%' ), false );
foreach ( $comments as $comment ) {
$list_items_markup .= '<li class="wp-block-latest-comments__comment">';
if ( $attributes['displayAvatar'] ) {
$avatar = get_avatar(
$comment,
48,
'',
'',
array(
'class' => 'wp-block-latest-comments__comment-avatar',
)
);
if ( $avatar ) {
$list_items_markup .= $avatar;
}
}
$list_items_markup .= '<article>';
$list_items_markup .= '<footer class="wp-block-latest-comments__comment-meta">';
$author_url = get_comment_author_url( $comment );
if ( empty( $author_url ) && ! empty( $comment->user_id ) ) {
$author_url = get_author_posts_url( $comment->user_id );
}
$author_markup = '';
if ( $author_url ) {
$author_markup .= '<a class="wp-block-latest-comments__comment-author" href="' . esc_url( $author_url ) . '">' . get_comment_author( $comment ) . '</a>';
} else {
$author_markup .= '<span class="wp-block-latest-comments__comment-author">' . get_comment_author( $comment ) . '</span>';
}
// `_draft_or_post_title` calls `esc_html()` so we don't need to wrap that call in
// `esc_html`.
$post_title = '<a class="wp-block-latest-comments__comment-link" href="' . esc_url( get_comment_link( $comment ) ) . '">' . wp_latest_comments_draft_or_post_title( $comment->comment_post_ID ) . '</a>';
$list_items_markup .= sprintf(
/* translators: 1: author name (inside <a> or <span> tag, based on if they have a URL), 2: post title related to this comment */
__( '%1$s on %2$s' ),
$author_markup,
$post_title
);
if ( $attributes['displayDate'] ) {
$list_items_markup .= sprintf(
'<time datetime="%1$s" class="wp-block-latest-comments__comment-date">%2$s</time>',
esc_attr( get_comment_date( 'c', $comment ) ),
date_i18n( get_option( 'date_format' ), get_comment_date( 'U', $comment ) )
);
}
$list_items_markup .= '</footer>';
if ( $attributes['displayExcerpt'] ) {
$list_items_markup .= '<div class="wp-block-latest-comments__comment-excerpt">' . wpautop( get_comment_excerpt( $comment ) ) . '</div>';
}
$list_items_markup .= '</article></li>';
}
}
$class = 'wp-block-latest-comments';
if ( isset( $attributes['align'] ) ) {
$class .= " align{$attributes['align']}";
}
if ( $attributes['displayAvatar'] ) {
$class .= ' has-avatars';
}
if ( $attributes['displayDate'] ) {
$class .= ' has-dates';
}
if ( $attributes['displayExcerpt'] ) {
$class .= ' has-excerpts';
}
if ( empty( $comments ) ) {
$class .= ' no-comments';
}
$classnames = esc_attr( $class );
$block_content = ! empty( $comments ) ? sprintf(
'<ol class="%1$s">%2$s</ol>',
$classnames,
$list_items_markup
) : sprintf(
'<div class="%1$s">%2$s</div>',
$classnames,
__( 'No comments to show.' )
);
return $block_content;
}
register_block_type(
'core/latest-comments',
array(
'attributes' => array(
'className' => array(
'type' => 'string',
),
'commentsToShow' => array(
'type' => 'number',
'default' => 5,
'minimum' => 1,
'maximum' => 100,
),
'displayAvatar' => array(
'type' => 'boolean',
'default' => true,
),
'displayDate' => array(
'type' => 'boolean',
'default' => true,
),
'displayExcerpt' => array(
'type' => 'boolean',
'default' => true,
),
'align' => array(
'type' => 'string',
'enum' => array( 'center', 'left', 'right', 'wide', 'full', '' ),
),
),
'render_callback' => 'render_block_core_latest_comments',
)
);