1<?php
2/**
3 * Server-side rendering of the `core/archives` block.
4 *
5 * @package WordPress
6 */
7
8/**
9 * Renders the `core/archives` block on server.
10 *
11 * @since 5.0.0
12 *
13 * @see WP_Widget_Archives
14 *
15 * @param array $attributes The block attributes.
16 *
17 * @return string Returns the post content with archives added.
18 */
19function render_block_core_archives( $attributes ) {
20 $show_post_count = ! empty( $attributes['showPostCounts'] );
21 $type = isset( $attributes['type'] ) ? $attributes['type'] : 'monthly';
22
23 $class = 'wp-block-archives-list';
24
25 if ( ! empty( $attributes['displayAsDropdown'] ) ) {
26
27 $class = 'wp-block-archives-dropdown';
28
29 $dropdown_id = wp_unique_id( 'wp-block-archives-' );
30 $title = __( 'Archives' );
31
32 /** This filter is documented in wp-includes/widgets/class-wp-widget-archives.php */
33 $dropdown_args = apply_filters(
34 'widget_archives_dropdown_args',
35 array(
36 'type' => $type,
37 'format' => 'option',
38 'show_post_count' => $show_post_count,
39 )
40 );
41
42 $dropdown_args['echo'] = 0;
43
44 $archives = wp_get_archives( $dropdown_args );
45
46 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
47
48 switch ( $dropdown_args['type'] ) {
49 case 'yearly':
50 $label = __( 'Select Year' );
51 break;
52 case 'monthly':
53 $label = __( 'Select Month' );
54 break;
55 case 'daily':
56 $label = __( 'Select Day' );
57 break;
58 case 'weekly':
59 $label = __( 'Select Week' );
60 break;
61 default:
62 $label = __( 'Select Post' );
63 break;
64 }
65
66 $show_label = empty( $attributes['showLabel'] ) ? ' screen-reader-text' : '';
67
68 $block_content = '<label for="' . $dropdown_id . '" class="wp-block-archives__label' . $show_label . '">' . esc_html( $title ) . '</label>
69 <select id="' . esc_attr( $dropdown_id ) . '" name="archive-dropdown">
70 <option value="">' . esc_html( $label ) . '</option>' . $archives . '</select>';
71
72 // Inject the dropdown script immediately after the select dropdown.
73 $block_content .= block_core_archives_build_dropdown_script( $dropdown_id );
74
75 return sprintf(
76 '<div %1$s>%2$s</div>',
77 $wrapper_attributes,
78 $block_content
79 );
80 }
81
82 /** This filter is documented in wp-includes/widgets/class-wp-widget-archives.php */
83 $archives_args = apply_filters(
84 'widget_archives_args',
85 array(
86 'type' => $type,
87 'show_post_count' => $show_post_count,
88 )
89 );
90
91 $archives_args['echo'] = 0;
92
93 $archives = wp_get_archives( $archives_args );
94
95 $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
96
97 if ( empty( $archives ) ) {
98 return sprintf(
99 '<div %1$s>%2$s</div>',
100 $wrapper_attributes,
101 __( 'No archives to show.' )
102 );
103 }
104
105 return sprintf(
106 '<ul %1$s>%2$s</ul>',
107 $wrapper_attributes,
108 $archives
109 );
110}
111
112/**
113 * Generates the inline script for an archives dropdown field.
114 *
115 * @since 6.9.0
116 *
117 * @param string $dropdown_id ID of the dropdown field.
118 *
119 * @return string Returns the dropdown onChange redirection script.
120 */
121function block_core_archives_build_dropdown_script( $dropdown_id ) {
122 ob_start();
123
124 $exports = array( $dropdown_id, home_url() );
125 ?>
126 <script>
127 ( ( [ dropdownId, homeUrl ] ) => {
128 const dropdown = document.getElementById( dropdownId );
129 function onSelectChange() {
130 setTimeout( () => {
131 if ( 'escape' === dropdown.dataset.lastkey ) {
132 return;
133 }
134 if ( dropdown.value ) {
135 location.href = dropdown.value;
136 }
137 }, 250 );
138 }
139 function onKeyUp( event ) {
140 if ( 'Escape' === event.key ) {
141 dropdown.dataset.lastkey = 'escape';
142 } else {
143 delete dropdown.dataset.lastkey;
144 }
145 }
146 function onClick() {
147 delete dropdown.dataset.lastkey;
148 }
149 dropdown.addEventListener( 'keyup', onKeyUp );
150 dropdown.addEventListener( 'click', onClick );
151 dropdown.addEventListener( 'change', onSelectChange );
152 } )( <?php echo wp_json_encode( $exports, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ); ?> );
153 </script>
154 <?php
155 return wp_get_inline_script_tag(
156 trim( str_replace( array( '<script>', '</script>' ), '', ob_get_clean() ) ) .
157 "\n//# sourceURL=" . rawurlencode( __FUNCTION__ )
158 );
159}
160
161/**
162 * Register archives block.
163 *
164 * @since 5.0.0
165 */
166function register_block_core_archives() {
167 register_block_type_from_metadata(
168 __DIR__ . '/archives',
169 array(
170 'render_callback' => 'render_block_core_archives',
171 )
172 );
173}
174add_action( 'init', 'register_block_core_archives' );
175