1<?php
  2/**
  3 * Server-side rendering of the `core/read-more` block.
  4 *
  5 * @package WordPress
  6 */
  7
  8/**
  9 * Renders the `core/read-more` 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  Returns the post link.
 17 */
 18function render_block_core_read_more( $attributes, $content, $block ) {
 19	if ( ! isset( $block->context['postId'] ) ) {
 20		return '';
 21	}
 22
 23	$post_ID    = $block->context['postId'];
 24	$post_title = get_the_title( $post_ID );
 25	if ( '' === $post_title ) {
 26		$post_title = sprintf(
 27			/* translators: %s is post ID to describe the link for screen readers. */
 28			__( 'untitled post %s' ),
 29			$post_ID
 30		);
 31	}
 32	$screen_reader_text = sprintf(
 33		/* translators: %s is either the post title or post ID to describe the link for screen readers. */
 34		__( ': %s' ),
 35		$post_title
 36	);
 37	$justify_class_name = empty( $attributes['justifyContent'] ) ? '' : "is-justified-{$attributes['justifyContent']}";
 38	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $justify_class_name ) );
 39	$more_text          = ! empty( $attributes['content'] ) ? wp_kses_post( $attributes['content'] ) : __( 'Read more' );
 40	return sprintf(
 41		'<a %1s href="%2s" target="%3s">%4s<span class="screen-reader-text">%5s</span></a>',
 42		$wrapper_attributes,
 43		get_the_permalink( $post_ID ),
 44		esc_attr( $attributes['linkTarget'] ),
 45		$more_text,
 46		$screen_reader_text
 47	);
 48}
 49
 50/**
 51 * Registers the `core/read-more` block on the server.
 52 *
 53 * @since 6.0.0
 54 */
 55function register_block_core_read_more() {
 56	register_block_type_from_metadata(
 57		__DIR__ . '/read-more',
 58		array(
 59			'render_callback' => 'render_block_core_read_more',
 60		)
 61	);
 62}
 63add_action( 'init', 'register_block_core_read_more' );
 64