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Gutenberg / 4.7.0
Gutenberg v4.7.0
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← All changes | lib/blocks.php +216 -333 23.3.04.7.0 View file →
@@ -1,388 +1,271 @@
1 1 <?php
2 2 /**
3 - * Block functions specific for the Gutenberg editor plugin.
3 + * Functions related to editor blocks for the Gutenberg editor plugin.
4 4 *
5 5 * @package gutenberg
6 6 */
7 7
8 -/**
9 - * Substitutes the implementation of a core-registered block type, if exists,
10 - * with the built result from the plugin.
11 - */
12 -function gutenberg_reregister_core_block_types() {
13 - $blocks_dirs = array(
14 - __DIR__ . '/../build/scripts/block-library/',
15 - __DIR__ . '/../build/scripts/edit-widgets/blocks/',
16 - __DIR__ . '/../build/scripts/widgets/blocks/',
17 - );
8 +if ( ! defined( 'ABSPATH' ) ) {
9 + die( 'Silence is golden.' );
10 +}
18 11
19 - foreach ( $blocks_dirs as $blocks_dir ) {
20 - $manifest_path = $blocks_dir . 'blocks-manifest.php';
21 - $blocks = require $manifest_path;
12 +if ( ! function_exists( 'register_block_type' ) ) {
13 + /**
14 + * Registers a block type.
15 + *
16 + * @since 0.1.0
17 + * @since 0.6.0 Now also accepts a WP_Block_Type instance as first parameter.
18 + *
19 + * @param string|WP_Block_Type $name Block type name including namespace, or alternatively a
20 + * complete WP_Block_Type instance. In case a WP_Block_Type
21 + * is provided, the $args parameter will be ignored.
22 + * @param array $args {
23 + * Optional. Array of block type arguments. Any arguments may be defined, however the
24 + * ones described below are supported by default. Default empty array.
25 + *
26 + * @type callable $render_callback Callback used to render blocks of this block type.
27 + * }
28 + * @return WP_Block_Type|false The registered block type on success, or false on failure.
29 + */
30 + function register_block_type( $name, $args = array() ) {
31 + return WP_Block_Type_Registry::get_instance()->register( $name, $args );
32 + }
33 +}
22 34
23 - foreach ( $blocks as $block_name_folder => $metadata ) {
24 - if ( ! is_array( $metadata ) || ! isset( $metadata['name'] ) ) {
25 - continue;
26 - }
35 +if ( ! function_exists( 'unregister_block_type' ) ) {
36 + /**
37 + * Unregisters a block type.
38 + *
39 + * @since 0.1.0
40 + * @since 0.6.0 Now also accepts a WP_Block_Type instance as first parameter.
41 + *
42 + * @param string|WP_Block_Type $name Block type name including namespace, or alternatively a
43 + * complete WP_Block_Type instance.
44 + * @return WP_Block_Type|false The unregistered block type on success, or false on failure.
45 + */
46 + function unregister_block_type( $name ) {
47 + return WP_Block_Type_Registry::get_instance()->unregister( $name );
48 + }
49 +}
27 50
28 - gutenberg_deregister_core_block_and_assets( $metadata['name'] );
29 - gutenberg_register_core_block_assets( $block_name_folder );
30 -
31 - $php_file = $blocks_dir . $block_name_folder . '.php';
32 - if ( file_exists( $php_file ) ) {
33 - require_once $php_file;
34 - } else {
35 - register_block_type_from_metadata( $blocks_dir . $block_name_folder );
36 - }
51 +if ( ! function_exists( 'gutenberg_parse_blocks' ) ) {
52 + /**
53 + * Parses blocks out of a content string.
54 + *
55 + * @since 0.5.0
56 + *
57 + * @param string $content Post content.
58 + * @return array Array of parsed block objects.
59 + */
60 + function gutenberg_parse_blocks( $content ) {
61 + /**
62 + * Filter to allow plugins to replace the server-side block parser
63 + *
64 + * @since 3.8.0
65 + *
66 + * @param string $parser_class Name of block parser class
67 + */
68 + $parser_class = apply_filters( 'block_parser_class', 'WP_Block_Parser' );
69 + // Load default block parser for server-side parsing if the default parser class is being used.
70 + if ( 'WP_Block_Parser' === $parser_class ) {
71 + require_once dirname( __FILE__ ) . '/../packages/block-serialization-default-parser/parser.php';
37 72 }
73 + $parser = new $parser_class();
74 + return $parser->parse( $content );
38 75 }
39 76 }
40 77
41 -add_action( 'init', 'gutenberg_reregister_core_block_types' );
78 +if ( ! function_exists( 'get_dynamic_block_names' ) ) {
79 + /**
80 + * Returns an array of the names of all registered dynamic block types.
81 + *
82 + * @return array Array of dynamic block names.
83 + */
84 + function get_dynamic_block_names() {
85 + $dynamic_block_names = array();
42 86
43 -/**
44 - * Adds the defer loading strategy to all registered blocks.
45 - *
46 - * This function would not be part of core merge. Instead, the register_block_script_handle() function would be patched
47 - * as follows.
48 - *
49 - * ```
50 - * --- a/wp-includes/blocks.php
51 - * +++ b/wp-includes/blocks.php
52 - * @ @ -153,7 +153,8 @ @ function register_block_script_handle( $metadata, $field_name, $index = 0 ) {
53 - * $script_handle,
54 - * $script_uri,
55 - * $script_dependencies,
56 - * - $script_asset['version'] ?? false
57 - * + $script_asset['version'] ?? false,
58 - * + array( 'strategy' => 'defer' )
59 - * );
60 - * if ( ! $result ) {
61 - * return false;
62 - * ```
63 - *
64 - * @see register_block_script_handle()
65 - */
66 -function gutenberg_defer_block_view_scripts() {
67 - $block_types = WP_Block_Type_Registry::get_instance()->get_all_registered();
68 - foreach ( $block_types as $block_type ) {
69 - foreach ( $block_type->view_script_handles as $view_script_handle ) {
70 - wp_script_add_data( $view_script_handle, 'strategy', 'defer' );
87 + $block_types = WP_Block_Type_Registry::get_instance()->get_all_registered();
88 + foreach ( $block_types as $block_type ) {
89 + if ( $block_type->is_dynamic() ) {
90 + $dynamic_block_names[] = $block_type->name;
91 + }
71 92 }
93 +
94 + return $dynamic_block_names;
72 95 }
73 96 }
74 97
75 -add_action( 'init', 'gutenberg_defer_block_view_scripts', 100 );
98 +if ( ! function_exists( 'get_dynamic_blocks_regex' ) ) {
99 + /**
100 + * Retrieve the dynamic blocks regular expression for searching.
101 + *
102 + * @since 3.6.0
103 + *
104 + * @return string
105 + */
106 + function get_dynamic_blocks_regex() {
107 + $dynamic_block_names = get_dynamic_block_names();
108 + $dynamic_block_pattern = (
109 + '/<!--\s+wp:(' .
110 + str_replace(
111 + '/',
112 + '\/', // Escape namespace, not handled by preg_quote.
113 + str_replace(
114 + 'core/',
115 + '(?:core/)?', // Allow implicit core namespace, but don't capture.
116 + implode(
117 + '|', // Join block names into capture group alternation.
118 + array_map(
119 + 'preg_quote', // Escape block name for regular expression.
120 + $dynamic_block_names
121 + )
122 + )
123 + )
124 + ) .
125 + ')(\s+(\{.*?\}))?\s+(\/)?-->/'
126 + );
76 127
77 -/**
78 - * Deregisters the existing core block type and its assets.
79 - *
80 - * @param string $block_name The name of the block.
81 - *
82 - * @return void
83 - */
84 -function gutenberg_deregister_core_block_and_assets( $block_name ) {
85 - $registry = WP_Block_Type_Registry::get_instance();
86 - if ( $registry->is_registered( $block_name ) ) {
87 - $block_type = $registry->get_registered( $block_name );
88 - if ( ! empty( $block_type->view_script_handles ) ) {
89 - foreach ( $block_type->view_script_handles as $view_script_handle ) {
90 - if ( str_starts_with( $view_script_handle, 'wp-block-' ) ) {
91 - wp_deregister_script( $view_script_handle );
92 - }
93 - }
94 - }
95 - $registry->unregister( $block_name );
128 + return $dynamic_block_pattern;
96 129 }
97 130 }
98 131
99 132 /**
100 - * Registers block styles for a core block.
133 + * Renders a single block into a HTML string.
101 134 *
102 - * @param string $block_name The block-name.
135 + * @since 1.9.0
136 + * @since 4.4.0 renders full nested tree of blocks before reassembling into HTML string
137 + * @global WP_Post $post The post to edit.
103 138 *
104 - * @return void
139 + * @param array $block A single parsed block object.
140 + * @return string String of rendered HTML.
105 141 */
106 -function gutenberg_register_core_block_assets( $block_name ) {
107 - static $gutenberg_url_root = null;
108 - // Running `gutenberg_url` inside of a loop can be expensive in systems with
109 - // many callbacks attached to the `plugins_url` hook.
110 - // Since all of the paths have the same root, we can instead retrieve the
111 - // corresponding URL root once, and manually concatenate the URL below.
112 - if ( is_null( $gutenberg_url_root ) ) {
113 - $gutenberg_url_root = gutenberg_url( '/' );
114 - }
142 +function gutenberg_render_block( $block ) {
143 + global $post;
115 144
116 - if ( ! wp_should_load_separate_core_block_assets() ) {
117 - return;
145 + $block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
146 + $is_dynamic = $block['blockName'] && null !== $block_type && $block_type->is_dynamic();
147 + $inner_content = '';
148 + $index = 0;
149 +
150 + foreach ( $block['innerContent'] as $chunk ) {
151 + $inner_content .= is_string( $chunk ) ? $chunk : gutenberg_render_block( $block['innerBlocks'][ $index++ ] );
118 152 }
119 153
120 - $block_name = str_replace( 'core/', '', $block_name );
154 + if ( $is_dynamic ) {
155 + $attributes = is_array( $block['attrs'] ) ? (array) $block['attrs'] : array();
156 + $global_post = $post;
157 + $output = $block_type->render( $attributes, $inner_content );
158 + $post = $global_post;
121 159
122 - // When in production, use the plugin's version as the default asset version;
123 - // else (for development or test) default to use the current time.
124 - $default_version = defined( 'GUTENBERG_VERSION' ) && ! SCRIPT_DEBUG ? GUTENBERG_VERSION : time();
125 - $suffix = SCRIPT_DEBUG ? '' : '.min';
160 + return $output;
161 + }
126 162
127 - $style_path = "build/styles/block-library/$block_name/";
128 - $stylesheet_url = $gutenberg_url_root . $style_path . 'style' . $suffix . '.css';
129 - $stylesheet_path = gutenberg_dir_path() . $style_path . ( is_rtl() ? 'style-rtl' . $suffix . '.css' : 'style' . $suffix . '.css' );
163 + return $inner_content;
164 +}
130 165
131 - if ( file_exists( $stylesheet_path ) ) {
132 -
133 - wp_deregister_style( "wp-block-{$block_name}" );
134 - wp_register_style(
135 - "wp-block-{$block_name}",
136 - $stylesheet_url,
137 - array(),
138 - $default_version
139 - );
140 - wp_style_add_data( "wp-block-{$block_name}", 'rtl', 'replace' );
141 - wp_style_add_data( "wp-block-{$block_name}", 'suffix', $suffix );
142 - // Add a reference to the stylesheet's path to allow calculations for inlining styles in `wp_head`.
143 - wp_style_add_data( "wp-block-{$block_name}", 'path', $stylesheet_path );
144 - } else {
145 - wp_register_style( "wp-block-{$block_name}", false, array() );
146 - }
147 -
148 - /*
149 - * If the current theme supports wp-block-styles, dequeue the core styles
150 - * and enqueue the plugin ones instead.
166 +if ( ! function_exists( 'do_blocks' ) ) {
167 + /**
168 + * Parses dynamic blocks out of `post_content` and re-renders them.
169 + *
170 + * @since 0.1.0
171 + * @since 4.4.0 performs full parse on input post content
172 + *
173 + * @param string $content Post content.
174 + * @return string Updated post content.
151 175 */
152 - if ( current_theme_supports( 'wp-block-styles' ) ) {
176 + function do_blocks( $content ) {
177 + // If there are blocks in this content, we shouldn't run wpautop() on it later.
178 + $priority = has_filter( 'the_content', 'wpautop' );
179 + if ( false !== $priority && doing_filter( 'the_content' ) && has_blocks( $content ) ) {
180 + remove_filter( 'the_content', 'wpautop', $priority );
181 + add_filter( 'the_content', '_restore_wpautop_hook', $priority + 1 );
182 + }
153 183
154 - // Get the path to the block's stylesheet.
155 - $theme_style_path = is_rtl()
156 - ? "build/styles/block-library/$block_name/theme-rtl{$suffix}.css"
157 - : "build/styles/block-library/$block_name/theme{$suffix}.css";
184 + $blocks = gutenberg_parse_blocks( $content );
185 + $output = '';
158 186
159 - // If the file exists, enqueue it.
160 - if ( file_exists( gutenberg_dir_path() . $theme_style_path ) ) {
161 - wp_deregister_style( "wp-block-{$block_name}-theme" );
162 - wp_register_style(
163 - "wp-block-{$block_name}-theme",
164 - $gutenberg_url_root . $theme_style_path,
165 - array(),
166 - $default_version
167 - );
168 - wp_style_add_data( "wp-block-{$block_name}-theme", 'path', gutenberg_dir_path() . $theme_style_path );
169 - wp_style_add_data( "wp-block-{$block_name}-theme", 'suffix', $suffix );
187 + foreach ( $blocks as $block ) {
188 + $output .= gutenberg_render_block( $block );
170 189 }
171 - }
172 190
173 - $editor_style_path = "build/styles/block-library/$block_name/style-editor{$suffix}.css";
174 - if ( file_exists( gutenberg_dir_path() . $editor_style_path ) ) {
175 - wp_deregister_style( "wp-block-{$block_name}-editor" );
176 - wp_register_style(
177 - "wp-block-{$block_name}-editor",
178 - $gutenberg_url_root . $editor_style_path,
179 - array(),
180 - $default_version
181 - );
182 - wp_style_add_data( "wp-block-{$block_name}-editor", 'rtl', 'replace' );
183 - wp_style_add_data( "wp-block-{$block_name}-editor", 'suffix', $suffix );
184 - } else {
185 - wp_register_style( "wp-block-{$block_name}-editor", false );
191 + return $output;
186 192 }
187 -}
188 193
189 -/**
190 - * Complements the implementation of block type `core/social-icon`, whether it
191 - * be provided by core or the plugin, with derived block types for each
192 - * "service" (WordPress, Twitter, etc.) supported by Social Links.
193 - *
194 - * This ensures backwards compatibility for any users running the Gutenberg
195 - * plugin who have used Social Links prior to their conversion to block
196 - * variations.
197 - *
198 - * This shim is INTENTIONALLY left out of core, as Social Links have never
199 - * landed there.
200 - *
201 - * @link https://github.com/WordPress/gutenberg/pull/19887
202 - */
203 -function gutenberg_register_legacy_social_link_blocks() {
204 - $services = array(
205 - 'amazon',
206 - 'bandcamp',
207 - 'behance',
208 - 'chain',
209 - 'codepen',
210 - 'deviantart',
211 - 'dribbble',
212 - 'dropbox',
213 - 'etsy',
214 - 'facebook',
215 - 'feed',
216 - 'fivehundredpx',
217 - 'flickr',
218 - 'foursquare',
219 - 'goodreads',
220 - 'google',
221 - 'github',
222 - 'instagram',
223 - 'lastfm',
224 - 'linkedin',
225 - 'mail',
226 - 'mastodon',
227 - 'meetup',
228 - 'medium',
229 - 'pinterest',
230 - 'pocket',
231 - 'reddit',
232 - 'skype',
233 - 'snapchat',
234 - 'soundcloud',
235 - 'spotify',
236 - 'tumblr',
237 - 'twitch',
238 - 'twitter',
239 - 'vimeo',
240 - 'vk',
241 - 'wordpress',
242 - 'yelp',
243 - 'youtube',
244 - );
245 -
246 - foreach ( $services as $service ) {
247 - register_block_type(
248 - 'core/social-link-' . $service,
249 - array(
250 - 'category' => 'widgets',
251 - 'attributes' => array(
252 - 'url' => array(
253 - 'type' => 'string',
254 - ),
255 - 'service' => array(
256 - 'type' => 'string',
257 - 'default' => $service,
258 - ),
259 - 'label' => array(
260 - 'type' => 'string',
261 - ),
262 - ),
263 - 'render_callback' => 'gutenberg_render_block_core_social_link',
264 - )
265 - );
266 - }
194 + add_filter( 'the_content', 'do_blocks', 7 ); // BEFORE do_shortcode() and oembed.
267 195 }
268 196
269 -add_action( 'init', 'gutenberg_register_legacy_social_link_blocks' );
197 +if ( ! function_exists( '_restore_wpautop_hook' ) ) {
198 + /**
199 + * If do_blocks() needs to remove wpautop() from the `the_content` filter,
200 + * this re-adds it afterwards, for subsequent `the_content` usage.
201 + *
202 + * @access private
203 + *
204 + * @since 4.6.0
205 + *
206 + * @param string $content The post content running through this filter.
207 + * @return string The unmodified content.
208 + */
209 + function _restore_wpautop_hook( $content ) {
210 + $current_priority = has_filter( 'the_content', '_restore_wpautop_hook' );
270 211
271 -/**
272 - * Migrate the legacy `sync_status` meta key (added 16.1) to the new `wp_pattern_sync_status` meta key (16.1.1).
273 - *
274 - * This filter is INTENTIONALLY left out of core as the meta key was fist introduced to core in 6.3 as `wp_pattern_sync_status`.
275 - * see https://github.com/WordPress/gutenberg/pull/52232
276 - *
277 - * @param mixed $value The value to return, either a single metadata value or an array of values depending on the value of $single.
278 - * @param int $object_id ID of the object metadata is for.
279 - * @param string $meta_key Metadata key.
280 - * @param bool $single Whether to return only the first value of the specified $meta_key.
281 - */
282 -function gutenberg_legacy_wp_block_post_meta( $value, $object_id, $meta_key, $single ) {
283 - if ( 'wp_pattern_sync_status' !== $meta_key ) {
284 - return $value;
285 - }
212 + add_filter( 'the_content', 'wpautop', $current_priority - 1 );
213 + remove_filter( 'the_content', '_restore_wpautop_hook', $current_priority );
286 214
287 - $sync_status = get_post_meta( $object_id, 'sync_status', $single );
288 -
289 - if ( $single && 'unsynced' === $sync_status ) {
290 - return $sync_status;
291 - } elseif ( isset( $sync_status[0] ) && 'unsynced' === $sync_status[0] ) {
292 - return $sync_status;
215 + return $content;
293 216 }
294 -
295 - return $value;
296 217 }
297 218
298 -add_filter( 'default_post_metadata', 'gutenberg_legacy_wp_block_post_meta', 10, 4 );
299 -
300 -
301 -
302 -/**
303 - * Strips all HTML from the content of footnotes, and sanitizes the ID.
304 - *
305 - * This function expects slashed data on the footnotes content.
306 - *
307 - * @access private
308 - *
309 - * @param string $footnotes JSON encoded string of an array containing the content and ID of each footnote.
310 - * @return string Filtered content without any HTML on the footnote content and with the sanitized id.
311 - */
312 -function _gutenberg_filter_post_meta_footnotes( $footnotes ) {
313 - $footnotes_decoded = json_decode( $footnotes, true );
314 - if ( ! is_array( $footnotes_decoded ) ) {
315 - return '';
219 +if ( ! function_exists( 'strip_dynamic_blocks' ) ) {
220 + /**
221 + * Remove all dynamic blocks from the given content.
222 + *
223 + * @since 3.6.0
224 + *
225 + * @param string $content Content of the current post.
226 + * @return string
227 + */
228 + function strip_dynamic_blocks( $content ) {
229 + return preg_replace( get_dynamic_blocks_regex(), '', $content );
316 230 }
317 - $footnotes_sanitized = array();
318 - foreach ( $footnotes_decoded as $footnote ) {
319 - if ( ! empty( $footnote['content'] ) && ! empty( $footnote['id'] ) ) {
320 - $footnotes_sanitized[] = array(
321 - 'id' => sanitize_key( $footnote['id'] ),
322 - 'content' => wp_unslash( wp_filter_post_kses( wp_slash( $footnote['content'] ) ) ),
323 - );
324 - }
325 - }
326 - return wp_json_encode( $footnotes_sanitized );
327 231 }
328 232
329 -/**
330 - * Adds the filters to filter footnotes meta field.
331 - *
332 - * @access private
333 - */
334 -function _gutenberg_footnotes_kses_init_filters() {
335 - add_filter( 'sanitize_post_meta_footnotes', '_gutenberg_filter_post_meta_footnotes' );
336 -}
233 +if ( ! function_exists( 'strip_dynamic_blocks_add_filter' ) ) {
234 + /**
235 + * Adds the content filter to strip dynamic blocks from excerpts.
236 + *
237 + * It's a bit hacky for now, but once this gets merged into core the function
238 + * can just be called in `wp_trim_excerpt()`.
239 + *
240 + * @since 3.6.0
241 + *
242 + * @param string $text Excerpt.
243 + * @return string
244 + */
245 + function strip_dynamic_blocks_add_filter( $text ) {
246 + add_filter( 'the_content', 'strip_dynamic_blocks', 6 );
337 247
338 -/**
339 - * Removes the filters that filter footnotes meta field.
340 - *
341 - * @access private
342 - */
343 -function _gutenberg_footnotes_remove_filters() {
344 - remove_filter( 'sanitize_post_meta_footnotes', '_gutenberg_filter_post_meta_footnotes' );
248 + return $text;
249 + }
250 + add_filter( 'get_the_excerpt', 'strip_dynamic_blocks_add_filter', 9 ); // Before wp_trim_excerpt().
345 251 }
346 252
347 -/**
348 - * Registers the filter of footnotes meta field if the user does not have unfiltered_html capability.
349 - *
350 - * @access private
351 - */
352 -function _gutenberg_footnotes_kses_init() {
353 - if ( function_exists( '_wp_filter_post_meta_footnotes' ) ) {
354 - return;
355 - }
356 - _gutenberg_footnotes_remove_filters();
357 - if ( ! current_user_can( 'unfiltered_html' ) ) {
358 - _gutenberg_footnotes_kses_init_filters();
359 - }
360 -}
253 +if ( ! function_exists( 'strip_dynamic_blocks_remove_filter' ) ) {
254 + /**
255 + * Removes the content filter to strip dynamic blocks from excerpts.
256 + *
257 + * It's a bit hacky for now, but once this gets merged into core the function
258 + * can just be called in `wp_trim_excerpt()`.
259 + *
260 + * @since 3.6.0
261 + *
262 + * @param string $text Excerpt.
263 + * @return string
264 + */
265 + function strip_dynamic_blocks_remove_filter( $text ) {
266 + remove_filter( 'the_content', 'strip_dynamic_blocks', 6 );
361 267
362 -/**
363 - * Initializes footnotes meta field filters when imported data should be filtered.
364 - *
365 - * This filter is the last being executed on force_filtered_html_on_import.
366 - * If the input of the filter is true it means we are in an import situation and should
367 - * enable kses, independently of the user capabilities.
368 - * So in that case we call _gutenberg_footnotes_kses_init_filters;
369 - *
370 - * @access private
371 - *
372 - * @param string $arg Input argument of the filter.
373 - * @return string Input argument of the filter.
374 - */
375 -function _gutenberg_footnotes_force_filtered_html_on_import_filter( $arg ) {
376 - if ( function_exists( '_wp_filter_post_meta_footnotes' ) ) {
377 - return;
268 + return $text;
378 269 }
379 - // force_filtered_html_on_import is true we need to init the global styles kses filters.
380 - if ( $arg ) {
381 - _gutenberg_footnotes_kses_init_filters();
382 - }
383 - return $arg;
270 + add_filter( 'wp_trim_excerpt', 'strip_dynamic_blocks_remove_filter', 0 ); // Before all other.
384 271 }
385 -
386 -add_action( 'init', '_gutenberg_footnotes_kses_init' );
387 -add_action( 'set_current_user', '_gutenberg_footnotes_kses_init' );
388 -add_filter( 'force_filtered_html_on_import', '_gutenberg_footnotes_force_filtered_html_on_import_filter', 999 );