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/wp-includes/blocks/ -> latest-comments.php (source)

   1  <?php
   2  /**
   3   * Server-side rendering of the `core/latest-comments` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Get the post title.
  10   *
  11   * The post title is fetched and if it is blank then a default string is
  12   * returned.
  13   *
  14   * Copied from `wp-admin/includes/template.php`, but we can't include that
  15   * file because:
  16   *
  17   * 1. It causes bugs with test fixture generation and strange Docker 255 error
  18   *    codes.
  19   * 2. It's in the admin; ideally we *shouldn't* be including files from the
  20   *    admin for a block's output. It's a very small/simple function as well,
  21   *    so duplicating it isn't too terrible.
  22   *
  23   * @since 3.3.0
  24   *
  25   * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
  26   * @return string The post title if set; "(no title)" if no title is set.
  27   */
  28  function wp_latest_comments_draft_or_post_title( $post = 0 ) {
  29      $title = get_the_title( $post );
  30      if ( empty( $title ) ) {
  31          $title = __( '(no title)' );
  32      }
  33      return esc_html( $title );
  34  }
  35  
  36  /**
  37   * Renders the `core/latest-comments` block on server.
  38   *
  39   * @param array $attributes The block attributes.
  40   *
  41   * @return string Returns the post content with latest comments added.
  42   */
  43  function render_block_core_latest_comments( $attributes = array() ) {
  44      // This filter is documented in wp-includes/widgets/class-wp-widget-recent-comments.php.
  45      $comments = get_comments(
  46          apply_filters(
  47              'widget_comments_args',
  48              array(
  49                  'number'      => $attributes['commentsToShow'],
  50                  'status'      => 'approve',
  51                  'post_status' => 'publish',
  52              )
  53          )
  54      );
  55  
  56      $list_items_markup = '';
  57      if ( ! empty( $comments ) ) {
  58          // Prime the cache for associated posts. This is copied from \WP_Widget_Recent_Comments::widget().
  59          $post_ids = array_unique( wp_list_pluck( $comments, 'comment_post_ID' ) );
  60          _prime_post_caches( $post_ids, strpos( get_option( 'permalink_structure' ), '%category%' ), false );
  61  
  62          foreach ( $comments as $comment ) {
  63              $list_items_markup .= '<li class="wp-block-latest-comments__comment">';
  64              if ( $attributes['displayAvatar'] ) {
  65                  $avatar = get_avatar(
  66                      $comment,
  67                      48,
  68                      '',
  69                      '',
  70                      array(
  71                          'class' => 'wp-block-latest-comments__comment-avatar',
  72                      )
  73                  );
  74                  if ( $avatar ) {
  75                      $list_items_markup .= $avatar;
  76                  }
  77              }
  78  
  79              $list_items_markup .= '<article>';
  80              $list_items_markup .= '<footer class="wp-block-latest-comments__comment-meta">';
  81              $author_url         = get_comment_author_url( $comment );
  82              if ( empty( $author_url ) && ! empty( $comment->user_id ) ) {
  83                  $author_url = get_author_posts_url( $comment->user_id );
  84              }
  85  
  86              $author_markup = '';
  87              if ( $author_url ) {
  88                  $author_markup .= '<a class="wp-block-latest-comments__comment-author" href="' . esc_url( $author_url ) . '">' . get_comment_author( $comment ) . '</a>';
  89              } else {
  90                  $author_markup .= '<span class="wp-block-latest-comments__comment-author">' . get_comment_author( $comment ) . '</span>';
  91              }
  92  
  93              // `_draft_or_post_title` calls `esc_html()` so we don't need to wrap that call in
  94              // `esc_html`.
  95              $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>';
  96  
  97              $list_items_markup .= sprintf(
  98                  /* translators: 1: author name (inside <a> or <span> tag, based on if they have a URL), 2: post title related to this comment */
  99                  __( '%1$s on %2$s' ),
 100                  $author_markup,
 101                  $post_title
 102              );
 103  
 104              if ( $attributes['displayDate'] ) {
 105                  $list_items_markup .= sprintf(
 106                      '<time datetime="%1$s" class="wp-block-latest-comments__comment-date">%2$s</time>',
 107                      esc_attr( get_comment_date( 'c', $comment ) ),
 108                      date_i18n( get_option( 'date_format' ), get_comment_date( 'U', $comment ) )
 109                  );
 110              }
 111              $list_items_markup .= '</footer>';
 112              if ( $attributes['displayExcerpt'] ) {
 113                  $list_items_markup .= '<div class="wp-block-latest-comments__comment-excerpt">' . wpautop( get_comment_excerpt( $comment ) ) . '</div>';
 114              }
 115              $list_items_markup .= '</article></li>';
 116          }
 117      }
 118  
 119      $class = 'wp-block-latest-comments';
 120      if ( ! empty( $attributes['className'] ) ) {
 121          $class .= ' ' . $attributes['className'];
 122      }
 123      if ( isset( $attributes['align'] ) ) {
 124          $class .= " align{$attributes['align']}";
 125      }
 126      if ( $attributes['displayAvatar'] ) {
 127          $class .= ' has-avatars';
 128      }
 129      if ( $attributes['displayDate'] ) {
 130          $class .= ' has-dates';
 131      }
 132      if ( $attributes['displayExcerpt'] ) {
 133          $class .= ' has-excerpts';
 134      }
 135      if ( empty( $comments ) ) {
 136          $class .= ' no-comments';
 137      }
 138      $classnames = esc_attr( $class );
 139  
 140      $block_content = ! empty( $comments ) ? sprintf(
 141          '<ol class="%1$s">%2$s</ol>',
 142          $classnames,
 143          $list_items_markup
 144      ) : sprintf(
 145          '<div class="%1$s">%2$s</div>',
 146          $classnames,
 147          __( 'No comments to show.' )
 148      );
 149  
 150      return $block_content;
 151  }
 152  
 153  register_block_type(
 154      'core/latest-comments',
 155      array(
 156          'attributes'      => array(
 157              'align'          => array(
 158                  'type' => 'string',
 159                  'enum' => array( 'left', 'center', 'right', 'wide', 'full' ),
 160              ),
 161              'className'      => array(
 162                  'type' => 'string',
 163              ),
 164              'commentsToShow' => array(
 165                  'type'    => 'number',
 166                  'default' => 5,
 167                  'minimum' => 1,
 168                  'maximum' => 100,
 169              ),
 170              'displayAvatar'  => array(
 171                  'type'    => 'boolean',
 172                  'default' => true,
 173              ),
 174              'displayDate'    => array(
 175                  'type'    => 'boolean',
 176                  'default' => true,
 177              ),
 178              'displayExcerpt' => array(
 179                  'type'    => 'boolean',
 180                  'default' => true,
 181              ),
 182          ),
 183          'render_callback' => 'render_block_core_latest_comments',
 184      )
 185  );


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