1<?php
2/**
3 * Server-side rendering of the `core/widget-group` block.
4 *
5 * @package WordPress
6 */
7
8/**
9 * Renders the 'core/widget-group' block.
10 *
11 * @since 5.9.0
12 *
13 * @global array $wp_registered_sidebars
14 * @global int|string $_sidebar_being_rendered
15 *
16 * @param array $attributes The block attributes.
17 * @param string $content The block content.
18 * @param WP_Block $block The block.
19 *
20 * @return string Rendered block.
21 */
22function render_block_core_widget_group( $attributes, $content, $block ) {
23 global $wp_registered_sidebars, $_sidebar_being_rendered;
24
25 if ( isset( $wp_registered_sidebars[ $_sidebar_being_rendered ] ) ) {
26 $before_title = $wp_registered_sidebars[ $_sidebar_being_rendered ]['before_title'];
27 $after_title = $wp_registered_sidebars[ $_sidebar_being_rendered ]['after_title'];
28 } else {
29 $before_title = '<h2 class="widget-title">';
30 $after_title = '</h2>';
31 }
32
33 $html = '';
34
35 if ( ! empty( $attributes['title'] ) ) {
36 $html .= $before_title . esc_html( $attributes['title'] ) . $after_title;
37 }
38
39 $html .= '<div class="wp-widget-group__inner-blocks">';
40 foreach ( $block->inner_blocks as $inner_block ) {
41 $html .= $inner_block->render();
42 }
43 $html .= '</div>';
44
45 return $html;
46}
47
48/**
49 * Registers the 'core/widget-group' block.
50 *
51 * @since 5.9.0
52 */
53function register_block_core_widget_group() {
54 register_block_type_from_metadata(
55 __DIR__ . '/widget-group',
56 array(
57 'render_callback' => 'render_block_core_widget_group',
58 )
59 );
60}
61
62add_action( 'init', 'register_block_core_widget_group' );
63
64/**
65 * Make a note of the sidebar being rendered before WordPress starts rendering
66 * it. This lets us get to the current sidebar in
67 * render_block_core_widget_group().
68 *
69 * @since 5.9.0
70 *
71 * @global int|string $_sidebar_being_rendered
72 *
73 * @param int|string $index Index, name, or ID of the dynamic sidebar.
74 */
75function note_sidebar_being_rendered( $index ) {
76 global $_sidebar_being_rendered;
77 $_sidebar_being_rendered = $index;
78}
79add_action( 'dynamic_sidebar_before', 'note_sidebar_being_rendered' );
80
81/**
82 * Clear whatever we set in note_sidebar_being_rendered() after WordPress
83 * finishes rendering a sidebar.
84 *
85 * @since 5.9.0
86 *
87 * @global int|string $_sidebar_being_rendered
88 */
89function discard_sidebar_being_rendered() {
90 global $_sidebar_being_rendered;
91 unset( $_sidebar_being_rendered );
92}
93add_action( 'dynamic_sidebar_after', 'discard_sidebar_being_rendered' );
94