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   1  <?php
   2  /**
   3   * Server-side rendering of the `core/avatar` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Renders the `core/avatar` block on the server.
  10   *
  11   * @since 6.0.0
  12   *
  13   * @param array    $attributes Block attributes.
  14   * @param string   $content    Block default content.
  15   * @param WP_Block $block      Block instance.
  16   * @return string Return the avatar.
  17   */
  18  function render_block_core_avatar( $attributes, $content, $block ) {
  19      $size               = isset( $attributes['size'] ) ? $attributes['size'] : 96;
  20      $wrapper_attributes = get_block_wrapper_attributes();
  21      $border_attributes  = get_block_core_avatar_border_attributes( $attributes );
  22  
  23      // Class gets passed through `esc_attr` via `get_avatar`.
  24      $image_classes = ! empty( $border_attributes['class'] )
  25          ? "wp-block-avatar__image {$border_attributes['class']}"
  26          : 'wp-block-avatar__image';
  27  
  28      // Unlike class, `get_avatar` doesn't filter the styles via `esc_attr`.
  29      // The style engine does pass the border styles through
  30      // `safecss_filter_attr` however.
  31      $image_styles = ! empty( $border_attributes['style'] )
  32          ? sprintf( ' style="%s"', esc_attr( $border_attributes['style'] ) )
  33          : '';
  34  
  35      if ( ! isset( $block->context['commentId'] ) ) {
  36          if ( isset( $attributes['userId'] ) ) {
  37              $author_id = $attributes['userId'];
  38          } elseif ( isset( $block->context['postId'] ) ) {
  39              $author_id = get_post_field( 'post_author', $block->context['postId'] );
  40          } else {
  41              $author_id = get_query_var( 'author' );
  42          }
  43  
  44          if ( empty( $author_id ) ) {
  45              return '';
  46          }
  47  
  48          $author_name = get_the_author_meta( 'display_name', $author_id );
  49          // translators: %s is the Author name.
  50          $alt          = sprintf( __( '%s Avatar' ), $author_name );
  51          $avatar_block = get_avatar(
  52              $author_id,
  53              $size,
  54              '',
  55              $alt,
  56              array(
  57                  'extra_attr' => $image_styles,
  58                  'class'      => $image_classes,
  59              )
  60          );
  61          if ( isset( $attributes['isLink'] ) && $attributes['isLink'] ) {
  62              $label = '';
  63              if ( '_blank' === $attributes['linkTarget'] ) {
  64                  // translators: %s is the Author name.
  65                  $label = 'aria-label="' . esc_attr( sprintf( __( '(%s author archive, opens in a new tab)' ), $author_name ) ) . '"';
  66              }
  67              // translators: %1$s: Author archive link. %2$s: Link target. %3$s Aria label. %4$s Avatar image.
  68              $avatar_block = sprintf( '<a href="%1$s" target="%2$s" %3$s class="wp-block-avatar__link">%4$s</a>', esc_url( get_author_posts_url( $author_id ) ), esc_attr( $attributes['linkTarget'] ), $label, $avatar_block );
  69          }
  70          return sprintf( '<div %1s>%2s</div>', $wrapper_attributes, $avatar_block );
  71      }
  72      $comment = get_comment( $block->context['commentId'] );
  73      if ( ! $comment ) {
  74          return '';
  75      }
  76      /* translators: %s is the Comment Author name */
  77      $alt          = sprintf( __( '%s Avatar' ), $comment->comment_author );
  78      $avatar_block = get_avatar(
  79          $comment,
  80          $size,
  81          '',
  82          $alt,
  83          array(
  84              'extra_attr' => $image_styles,
  85              'class'      => $image_classes,
  86          )
  87      );
  88      if ( isset( $attributes['isLink'] ) && $attributes['isLink'] && isset( $comment->comment_author_url ) && '' !== $comment->comment_author_url ) {
  89          $label = '';
  90          if ( '_blank' === $attributes['linkTarget'] ) {
  91              // translators: %s is the Comment Author name.
  92              $label = 'aria-label="' . esc_attr( sprintf( __( '(%s website link, opens in a new tab)' ), $comment->comment_author ) ) . '"';
  93          }
  94          // translators: %1$s: Comment Author website link. %2$s: Link target. %3$s Aria label. %4$s Avatar image.
  95          $avatar_block = sprintf( '<a href="%1$s" target="%2$s" %3$s class="wp-block-avatar__link">%4$s</a>', esc_url( $comment->comment_author_url ), esc_attr( $attributes['linkTarget'] ), $label, $avatar_block );
  96      }
  97      return sprintf( '<div %1s>%2s</div>', $wrapper_attributes, $avatar_block );
  98  }
  99  
 100  /**
 101   * Generates class names and styles to apply the border support styles for
 102   * the Avatar block.
 103   *
 104   * @since 6.3.0
 105   *
 106   * @param array $attributes The block attributes.
 107   * @return array The border-related classnames and styles for the block.
 108   */
 109  function get_block_core_avatar_border_attributes( $attributes ) {
 110      $border_styles = array();
 111      $sides         = array( 'top', 'right', 'bottom', 'left' );
 112  
 113      // Border radius.
 114      if ( isset( $attributes['style']['border']['radius'] ) ) {
 115          $border_styles['radius'] = $attributes['style']['border']['radius'];
 116      }
 117  
 118      // Border style.
 119      if ( isset( $attributes['style']['border']['style'] ) ) {
 120          $border_styles['style'] = $attributes['style']['border']['style'];
 121      }
 122  
 123      // Border width.
 124      if ( isset( $attributes['style']['border']['width'] ) ) {
 125          $border_styles['width'] = $attributes['style']['border']['width'];
 126      }
 127  
 128      // Border color.
 129      $preset_color           = array_key_exists( 'borderColor', $attributes ) ? "var:preset|color|{$attributes['borderColor']}" : null;
 130      $custom_color           = $attributes['style']['border']['color'] ?? null;
 131      $border_styles['color'] = $preset_color ? $preset_color : $custom_color;
 132  
 133      // Individual border styles e.g. top, left etc.
 134      foreach ( $sides as $side ) {
 135          $border                 = $attributes['style']['border'][ $side ] ?? null;
 136          $border_styles[ $side ] = array(
 137              'color' => isset( $border['color'] ) ? $border['color'] : null,
 138              'style' => isset( $border['style'] ) ? $border['style'] : null,
 139              'width' => isset( $border['width'] ) ? $border['width'] : null,
 140          );
 141      }
 142  
 143      $styles     = wp_style_engine_get_styles( array( 'border' => $border_styles ) );
 144      $attributes = array();
 145      if ( ! empty( $styles['classnames'] ) ) {
 146          $attributes['class'] = $styles['classnames'];
 147      }
 148      if ( ! empty( $styles['css'] ) ) {
 149          $attributes['style'] = $styles['css'];
 150      }
 151      return $attributes;
 152  }
 153  
 154  /**
 155   * Registers the `core/avatar` block on the server.
 156   *
 157   * @since 6.0.0
 158   */
 159  function register_block_core_avatar() {
 160      register_block_type_from_metadata(
 161          __DIR__ . '/avatar',
 162          array(
 163              'render_callback' => 'render_block_core_avatar',
 164          )
 165      );
 166  }
 167  add_action( 'init', 'register_block_core_avatar' );