1<?php
2
3/**
4 * Sets a custom slug when creating auto-draft template parts.
5 *
6 * This is only needed for auto-drafts created by the regular WP editor.
7 * If this page is to be removed, this will not be necessary.
8 *
9 * @since 5.9.0
10 *
11 * @param int $post_id Post ID.
12 */
13function wp_set_unique_slug_on_create_template_part( $post_id ) {
14 $post = get_post( $post_id );
15 if ( 'auto-draft' !== $post->post_status ) {
16 return;
17 }
18
19 if ( ! $post->post_name ) {
20 wp_update_post(
21 array(
22 'ID' => $post_id,
23 'post_name' => 'custom_slug_' . uniqid(),
24 )
25 );
26 }
27
28 $terms = get_the_terms( $post_id, 'wp_theme' );
29 if ( ! is_array( $terms ) || ! count( $terms ) ) {
30 wp_set_post_terms( $post_id, get_stylesheet(), 'wp_theme' );
31 }
32}
33
34/**
35 * Generates a unique slug for templates.
36 *
37 * @access private
38 * @since 5.8.0
39 *
40 * @param string $override_slug The filtered value of the slug (starts as `null` from apply_filter).
41 * @param string $slug The original/un-filtered slug (post_name).
42 * @param int $post_id Post ID.
43 * @param string $post_status No uniqueness checks are made if the post is still draft or pending.
44 * @param string $post_type Post type.
45 * @return string The original, desired slug.
46 */
47function wp_filter_wp_template_unique_post_slug( $override_slug, $slug, $post_id, $post_status, $post_type ) {
48 if ( 'wp_template' !== $post_type && 'wp_template_part' !== $post_type ) {
49 return $override_slug;
50 }
51
52 if ( ! $override_slug ) {
53 $override_slug = $slug;
54 }
55
56 /*
57 * Template slugs must be unique within the same theme.
58 * TODO - Figure out how to update this to work for a multi-theme environment.
59 * Unfortunately using `get_the_terms()` for the 'wp-theme' term does not work
60 * in the case of new entities since is too early in the process to have been saved
61 * to the entity. So for now we use the currently activated theme for creation.
62 */
63 $theme = get_stylesheet();
64 $terms = get_the_terms( $post_id, 'wp_theme' );
65 if ( $terms && ! is_wp_error( $terms ) ) {
66 $theme = $terms[0]->name;
67 }
68
69 $check_query_args = array(
70 'post_name__in' => array( $override_slug ),
71 'post_type' => $post_type,
72 'posts_per_page' => 1,
73 'no_found_rows' => true,
74 'post__not_in' => array( $post_id ),
75 'tax_query' => array(
76 array(
77 'taxonomy' => 'wp_theme',
78 'field' => 'name',
79 'terms' => $theme,
80 ),
81 ),
82 );
83 $check_query = new WP_Query( $check_query_args );
84 $posts = $check_query->posts;
85
86 if ( count( $posts ) > 0 ) {
87 $suffix = 2;
88 do {
89 $query_args = $check_query_args;
90 $alt_post_name = _truncate_post_slug( $override_slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";
91 $query_args['post_name__in'] = array( $alt_post_name );
92 $query = new WP_Query( $query_args );
93 ++$suffix;
94 } while ( count( $query->posts ) > 0 );
95 $override_slug = $alt_post_name;
96 }
97
98 return $override_slug;
99}
100
101/**
102 * Enqueues the skip-link script & styles.
103 *
104 * @access private
105 * @since 6.4.0
106 *
107 * @global string $_wp_current_template_content
108 */
109function wp_enqueue_block_template_skip_link() {
110 global $_wp_current_template_content;
111
112 // Back-compat for plugins that disable functionality by unhooking this action.
113 if ( ! has_action( 'wp_footer', 'the_block_template_skip_link' ) ) {
114 return;
115 }
116 remove_action( 'wp_footer', 'the_block_template_skip_link' );
117
118 // Early exit if not a block theme.
119 if ( ! current_theme_supports( 'block-templates' ) ) {
120 return;
121 }
122
123 // Early exit if not a block template.
124 if ( ! $_wp_current_template_content ) {
125 return;
126 }
127
128 $skip_link_styles = '
129 .skip-link.screen-reader-text {
130 border: 0;
131 clip-path: inset(50%);
132 height: 1px;
133 margin: -1px;
134 overflow: hidden;
135 padding: 0;
136 position: absolute !important;
137 width: 1px;
138 word-wrap: normal !important;
139 }
140
141 .skip-link.screen-reader-text:focus {
142 background-color: #eee;
143 clip-path: none;
144 color: #444;
145 display: block;
146 font-size: 1em;
147 height: auto;
148 left: 5px;
149 line-height: normal;
150 padding: 15px 23px 14px;
151 text-decoration: none;
152 top: 5px;
153 width: auto;
154 z-index: 100000;
155 }';
156
157 $handle = 'wp-block-template-skip-link';
158
159 /**
160 * Print the skip-link styles.
161 */
162 wp_register_style( $handle, false );
163 wp_add_inline_style( $handle, $skip_link_styles );
164 wp_enqueue_style( $handle );
165
166 /**
167 * Enqueue the skip-link script.
168 */
169 ob_start();
170 ?>
171 <script>
172 ( function() {
173 var skipLinkTarget = document.querySelector( 'main' ),
174 sibling,
175 skipLinkTargetID,
176 skipLink;
177
178 // Early exit if a skip-link target can't be located.
179 if ( ! skipLinkTarget ) {
180 return;
181 }
182
183 /*
184 * Get the site wrapper.
185 * The skip-link will be injected in the beginning of it.
186 */
187 sibling = document.querySelector( '.wp-site-blocks' );
188
189 // Early exit if the root element was not found.
190 if ( ! sibling ) {
191 return;
192 }
193
194 // Get the skip-link target's ID, and generate one if it doesn't exist.
195 skipLinkTargetID = skipLinkTarget.id;
196 if ( ! skipLinkTargetID ) {
197 skipLinkTargetID = 'wp--skip-link--target';
198 skipLinkTarget.id = skipLinkTargetID;
199 }
200
201 // Create the skip link.
202 skipLink = document.createElement( 'a' );
203 skipLink.classList.add( 'skip-link', 'screen-reader-text' );
204 skipLink.id = 'wp-skip-link';
205 skipLink.href = '#' + skipLinkTargetID;
206 skipLink.innerText = '<?php /* translators: Hidden accessibility text. Do not use HTML entities ( , etc.). */ esc_html_e( 'Skip to content' ); ?>';
207
208 // Inject the skip link.
209 sibling.parentElement.insertBefore( skipLink, sibling );
210 }() );
211 </script>
212 <?php
213 $skip_link_script = wp_remove_surrounding_empty_script_tags( ob_get_clean() );
214 $script_handle = 'wp-block-template-skip-link';
215 wp_register_script( $script_handle, false, array(), false, array( 'in_footer' => true ) );
216 wp_add_inline_script( $script_handle, $skip_link_script );
217 wp_enqueue_script( $script_handle );
218}
219
220/**
221 * Enables the block templates (editor mode) for themes with theme.json by default.
222 *
223 * @access private
224 * @since 5.8.0
225 */
226function wp_enable_block_templates() {
227 if ( wp_is_block_theme() || wp_theme_has_theme_json() ) {
228 add_theme_support( 'block-templates' );
229 }
230}
231