1<?php
2/**
3 * Server-side rendering of the `core/post-content` block.
4 *
5 * @package WordPress
6 */
7
8/**
9 * Renders the `core/post-content` block on the server.
10 *
11 * @since 5.8.0
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 filtered post content of the current post.
17 */
18function render_block_core_post_content( $attributes, $content, $block ) {
19 static $seen_ids = array();
20
21 if ( ! isset( $block->context['postId'] ) ) {
22 return '';
23 }
24
25 $post_id = $block->context['postId'];
26
27 if ( isset( $seen_ids[ $post_id ] ) ) {
28 // WP_DEBUG_DISPLAY must only be honored when WP_DEBUG. This precedent
29 // is set in `wp_debug_mode()`.
30 $is_debug = WP_DEBUG && WP_DEBUG_DISPLAY;
31
32 return $is_debug ?
33 // translators: Visible only in the front end, this warning takes the place of a faulty block.
34 __( '[block rendering halted]' ) :
35 '';
36 }
37
38 $seen_ids[ $post_id ] = true;
39
40 // When inside the main loop, we want to use queried object
41 // so that `the_preview` for the current post can apply.
42 // We force this behavior by omitting the third argument (post ID) from the `get_the_content`.
43 $content = get_the_content();
44 // Check for nextpage to display page links for paginated posts.
45 if ( has_block( 'core/nextpage' ) ) {
46 $content .= wp_link_pages( array( 'echo' => 0 ) );
47 }
48
49 /** This filter is documented in wp-includes/post-template.php */
50 $content = apply_filters( 'the_content', str_replace( ']]>', ']]>', $content ) );
51 unset( $seen_ids[ $post_id ] );
52
53 if ( empty( $content ) ) {
54 return '';
55 }
56
57 $tag_name = 'div';
58
59 if ( ! empty( $attributes['tagName'] ) && tag_escape( $attributes['tagName'] ) === $attributes['tagName'] ) {
60 $tag_name = $attributes['tagName'];
61 }
62
63 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => 'entry-content' ) );
64
65 return sprintf(
66 '<%1$s %2$s>%3$s</%1$s>',
67 $tag_name,
68 $wrapper_attributes,
69 $content
70 );
71}
72
73/**
74 * Registers the `core/post-content` block on the server.
75 *
76 * @since 5.8.0
77 */
78function register_block_core_post_content() {
79 register_block_type_from_metadata(
80 __DIR__ . '/post-content',
81 array(
82 'render_callback' => 'render_block_core_post_content',
83 )
84 );
85}
86add_action( 'init', 'register_block_core_post_content' );
87