class.jetpack-gutenberg.php — Jetpack – WP Security, Backup, Speed, & Growth 15.9-a.5

jetpack / class.jetpack-gutenberg.php

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class.jetpack-gutenberg.php

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1	<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2	/**
3	* Handles server-side registration and use of all blocks and plugins available in Jetpack for the block editor, aka Gutenberg.
4	* Works in tandem with client-side block registration via `index.json`
5	*
6	* @package automattic/jetpack
7	*/
8
9	use Automattic\Jetpack\Assets;
10	use Automattic\Jetpack\Blocks;
11	use Automattic\Jetpack\Connection\Initial_State as Connection_Initial_State;
12	use Automattic\Jetpack\Connection\Manager as Connection_Manager;
13	use Automattic\Jetpack\Constants;
14	use Automattic\Jetpack\Current_Plan as Jetpack_Plan;
15	use Automattic\Jetpack\Modules;
16	use Automattic\Jetpack\My_Jetpack\Initializer as My_Jetpack_Initializer;
17	use Automattic\Jetpack\Status;
18	use Automattic\Jetpack\Status\Host;
19
20	if ( ! defined( 'ABSPATH' ) ) {
21	exit( 0 );
22	}
23
24	// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move the functions and such to some other file.
25
26	/**
27	* General Gutenberg editor specific functionality
28	*/
29	class Jetpack_Gutenberg {
30
31	/**
32	* Only these extensions can be registered. Used to control availability of beta blocks.
33	*
34	* @var array\|null Extensions allowed list or `null` if not initialized yet.
35	* @see static::get_extensions()
36	*/
37	private static $extensions = null;
38
39	/**
40	* Keeps track of the reasons why a given extension is unavailable.
41	*
42	* @var array Extensions availability information
43	*/
44	private static $availability = array();
45
46	/**
47	* A cached array of the fully processed availability data. Keeps track of
48	* reasons why an extension is unavailable or missing.
49	*
50	* @var array Extensions availability information.
51	*/
52	private static $cached_availability = null;
53
54	/**
55	* Site-specific features available.
56	* Their calculation can be expensive and slow, so we're caching it for the request.
57	*
58	* @var array Site-specific features
59	*/
60	private static $site_specific_features = array();
61
62	/**
63	* List of deprecated blocks.
64	*
65	* @var array List of deprecated blocks.
66	*/
67	private static $deprecated_blocks = array(
68	'jetpack/revue',
69	);
70
71	/**
72	* Fallback minimum plan requirements for WordPress.com/Atomic sites.
73	*
74	* Used when features have conditional availability (e.g., sticker-based gating)
75	* and don't appear in features_data['available']. This only affects the upsell
76	* message shown to users.
77	*
78	* @since 15.5
79	* @var array Feature slug => minimum WordPress.com plan slug.
80	*/
81	private static $wpcom_minimum_plan_fallbacks = array(
82	'donations' => 'value_bundle',
83	'payment-buttons' => 'value_bundle',
84	'paypal-payment-buttons' => 'value_bundle',
85	);
86
87	/**
88	* Storing the contents of the preset file.
89	*
90	* Already been json_decode.
91	*
92	* @var null\|object JSON decoded object after first usage.
93	*/
94	private static $preset_cache = null;
95
96	/**
97	* Keep track of JS loading strategies for each block that needs it.
98	*
99	* @var array<string, array\|bool>
100	*
101	* @since 15.0
102	*/
103	private static $block_js_loading_strategies = array();
104
105	/**
106	* Check to see if a minimum version of Gutenberg is available. Because a Gutenberg version is not available in
107	* php if the Gutenberg plugin is not installed, if we know which minimum WP release has the required version we can
108	* optionally fall back to that.
109	*
110	* @param array $version_requirements An array containing the required Gutenberg version and, if known, the WordPress version that was released with this minimum version.
111	* @param string $slug The slug of the block or plugin that has the gutenberg version requirement.
112	*
113	* @since 8.3.0
114	*
115	* @return boolean True if the version of gutenberg required by the block or plugin is available.
116	*/
117	public static function is_gutenberg_version_available( $version_requirements, $slug ) {
118	global $wp_version;
119
120	// Bail if we don't at least have the gutenberg version requirement, the WP version is optional.
121	if ( empty( $version_requirements['gutenberg'] ) ) {
122	return false;
123	}
124
125	// If running a local dev build of gutenberg plugin GUTENBERG_DEVELOPMENT_MODE is set so assume correct version.
126	if ( defined( 'GUTENBERG_DEVELOPMENT_MODE' ) && GUTENBERG_DEVELOPMENT_MODE ) {
127	return true;
128	}
129
130	$version_available = false;
131
132	// If running a production build of the gutenberg plugin then GUTENBERG_VERSION is set, otherwise if WP version
133	// with required version of Gutenberg is known check that.
134	if ( defined( 'GUTENBERG_VERSION' ) ) {
135	$version_available = version_compare( GUTENBERG_VERSION, $version_requirements['gutenberg'], '>=' );
136	} elseif ( ! empty( $version_requirements['wp'] ) ) {
137	$version_available = version_compare( $wp_version, $version_requirements['wp'], '>=' );
138	}
139
140	if ( ! $version_available ) {
141	$slug = self::remove_extension_prefix( $slug );
142	self::set_extension_unavailable(
143	$slug,
144	'incorrect_gutenberg_version',
145	array(
146	'required_feature' => $slug,
147	'required_version' => $version_requirements,
148	'current_version' => array(
149	'wp' => $wp_version,
150	'gutenberg' => defined( 'GUTENBERG_VERSION' ) ? GUTENBERG_VERSION : null,
151	),
152	)
153	);
154	}
155
156	return $version_available;
157	}
158
159	/**
160	* Prepend the 'jetpack/' prefix to a block name
161	*
162	* @param string $block_name The block name.
163	*
164	* @return string The prefixed block name.
165	*/
166	private static function prepend_block_prefix( $block_name ) {
167	return 'jetpack/' . $block_name;
168	}
169
170	/**
171	* Remove the 'jetpack/' or jetpack-' prefix from an extension name
172	*
173	* @param string $extension_name The extension name.
174	*
175	* @return string The unprefixed extension name.
176	*/
177	public static function remove_extension_prefix( $extension_name ) {
178	if ( str_starts_with( $extension_name, 'jetpack/' ) \|\| str_starts_with( $extension_name, 'jetpack-' ) ) {
179	return substr( $extension_name, strlen( 'jetpack/' ) );
180	}
181	return $extension_name;
182	}
183
184	/**
185	* Whether two arrays share at least one item
186	*
187	* @param array $a An array.
188	* @param array $b Another array.
189	*
190	* @return boolean True if $a and $b share at least one item
191	*/
192	protected static function share_items( $a, $b ) {
193	return array_intersect( $a, $b ) !== array();
194	}
195
196	/**
197	* Set a (non-block) extension as available
198	*
199	* @param string $slug Slug of the extension.
200	*/
201	public static function set_extension_available( $slug ) {
202	$slug = self::remove_extension_prefix( $slug );
203	self::$availability[ $slug ] = true;
204	}
205
206	/**
207	* Set the reason why an extension (block or plugin) is unavailable
208	*
209	* @param string $slug Slug of the extension.
210	* @param string $reason A string representation of why the extension is unavailable.
211	* @param array $details A free-form array containing more information on why the extension is unavailable.
212	*/
213	public static function set_extension_unavailable( $slug, $reason, $details = array() ) {
214	if (
215	// Extensions that require a plan may be eligible for upgrades.
216	'missing_plan' === $reason
217	&& (
218	/**
219	* Filter 'jetpack_block_editor_enable_upgrade_nudge' with `true` to enable or `false`
220	* to disable paid feature upgrade nudges in the block editor.
221	*
222	* When this is changed to default to `true`, you should also update `modules/memberships/class-jetpack-memberships.php`
223	* See https://github.com/Automattic/jetpack/pull/13394#pullrequestreview-293063378
224	*
225	* @since 7.7.0
226	*
227	* @param boolean
228	*/
229	! apply_filters( 'jetpack_block_editor_enable_upgrade_nudge', false )
230	/** This filter is documented in _inc/lib/admin-pages/class.jetpack-react-page.php */
231	\|\| ! apply_filters( 'jetpack_show_promotions', true )
232	)
233	) {
234	// The block editor may apply an upgrade nudge if `missing_plan` is the reason.
235	// Add a descriptive suffix to disable behavior but provide informative reason.
236	$reason .= '__nudge_disabled';
237	}
238	$slug = self::remove_extension_prefix( $slug );
239	self::$availability[ $slug ] = array(
240	'reason' => $reason,
241	'details' => $details,
242	);
243	}
244
245	/**
246	* Used to initialize the class, no longer in use.
247	*
248	* @return void
249	* @deprecated 12.2 No longer needed.
250	*/
251	public static function init() {
252	_deprecated_function( __METHOD__, '12.2' );
253	}
254
255	/**
256	* Resets the class to its original state
257	*
258	* Used in unit tests
259	*
260	* @return void
261	*/
262	public static function reset() {
263	self::$extensions = null;
264	self::$availability = array();
265	self::$cached_availability = null;
266	self::$block_js_loading_strategies = array();
267	}
268
269	/**
270	* Return the Gutenberg extensions (blocks and plugins) directory
271	*
272	* @return string The Gutenberg extensions directory
273	*/
274	public static function get_blocks_directory() {
275	/**
276	* Filter to select Gutenberg blocks directory
277	*
278	* @since 6.9.0
279	*
280	* @param string default: '_inc/blocks/'
281	*/
282	return apply_filters( 'jetpack_blocks_directory', '_inc/blocks/' );
283	}
284
285	/**
286	* Checks for a given .json file in the blocks folder.
287	*
288	* @deprecated 14.3
289	*
290	* @param string $preset The name of the .json file to look for.
291	*
292	* @return bool True if the file is found.
293	*/
294	public static function preset_exists( $preset ) {
295	_deprecated_function( __METHOD__, '14.3' );
296	return file_exists( JETPACK__PLUGIN_DIR . self::get_blocks_directory() . $preset . '.json' );
297	}
298
299	/**
300	* Decodes JSON loaded from the preset file in the blocks folder
301	*
302	* @since 14.3 Deprecated argument. Only one value is ever used.
303	*
304	* @param null $deprecated No longer used.
305	*
306	* @return mixed Returns an object if the file is present, or false if a valid .json file is not present.
307	*/
308	public static function get_preset( $deprecated = null ) {
309	if ( $deprecated ) {
310	_deprecated_argument( __METHOD__, '14.3', 'The $preset argument is no longer needed or used.' );
311	}
312
313	if ( self::$preset_cache ) {
314	return self::$preset_cache;
315	}
316
317	self::$preset_cache = json_decode(
318	// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
319	file_get_contents( JETPACK__PLUGIN_DIR . self::get_blocks_directory() . 'index.json' )
320	);
321	return self::$preset_cache;
322	}
323
324	/**
325	* Returns a list of Jetpack Gutenberg extensions (blocks and plugins), based on index.json
326	*
327	* @return array A list of blocks: eg [ 'publicize', 'markdown' ]
328	*/
329	public static function get_jetpack_gutenberg_extensions_allowed_list() {
330	$preset_extensions_manifest = ( defined( 'TESTING_IN_JETPACK' ) && TESTING_IN_JETPACK ) ? array() : self::get_preset();
331	$blocks_variation = self::blocks_variation();
332
333	return self::get_extensions_preset_for_variation( $preset_extensions_manifest, $blocks_variation );
334	}
335
336	/**
337	* Returns a diff from a combined list of allowed extensions and extensions determined to be excluded
338	*
339	* @param array $allowed_extensions An array of allowed extensions.
340	*
341	* @return array A list of blocks: eg array( 'publicize', 'markdown' )
342	*/
343	public static function get_available_extensions( $allowed_extensions = null ) {
344	$exclusions = get_option( 'jetpack_excluded_extensions', array() );
345	$allowed_extensions = $allowed_extensions === null ? self::get_jetpack_gutenberg_extensions_allowed_list() : $allowed_extensions;
346
347	// Avoid errors if option data is not as expected.
348	if ( ! is_array( $exclusions ) ) {
349	$exclusions = array();
350	}
351
352	return array_diff( $allowed_extensions, $exclusions );
353	}
354
355	/**
356	* Return true if the extension has been registered and there's nothing in the availablilty array.
357	*
358	* @param string $extension The name of the extension.
359	*
360	* @return bool whether the extension has been registered and there's nothing in the availablilty array.
361	*/
362	public static function is_registered_and_no_entry_in_availability( $extension ) {
363	return self::is_registered( 'jetpack/' . $extension ) && ! isset( self::$availability[ $extension ] );
364	}
365
366	/**
367	* Return true if the extension has a true entry in the availablilty array.
368	*
369	* @param string $extension The name of the extension.
370	*
371	* @return bool whether the extension has a true entry in the availablilty array.
372	*/
373	public static function is_available( $extension ) {
374	return isset( self::$availability[ $extension ] ) && true === self::$availability[ $extension ];
375	}
376
377	/**
378	* Get the availability of each block / plugin, or return the cached availability
379	* if it has already been calculated. Avoids re-registering extensions when not
380	* necessary.
381	*
382	* @return array A list of block and plugins and their availability status.
383	*/
384	public static function get_cached_availability() {
385	if ( null === self::$cached_availability ) {
386	self::$cached_availability = self::get_availability();
387	}
388	return self::$cached_availability;
389	}
390
391	/**
392	* Get availability of each block / plugin.
393	*
394	* @return array A list of block and plugins and their availablity status
395	*/
396	public static function get_availability() {
397	/**
398	* Fires before Gutenberg extensions availability is computed.
399	*
400	* In the function call you supply, use `Blocks::jetpack_register_block()` to set a block as available.
401	* Alternatively, use `Jetpack_Gutenberg::set_extension_available()` (for a non-block plugin), and
402	* `Jetpack_Gutenberg::set_extension_unavailable()` (if the block or plugin should not be registered
403	* but marked as unavailable).
404	*
405	* @since 7.0.0
406	*/
407	do_action( 'jetpack_register_gutenberg_extensions' );
408
409	$available_extensions = array();
410
411	foreach ( static::get_extensions() as $extension ) {
412	$is_available = self::is_registered_and_no_entry_in_availability( $extension ) \|\| self::is_available( $extension );
413	$available_extensions[ $extension ] = array(
414	'available' => $is_available,
415	);
416
417	if ( ! $is_available ) {
418	$reason = isset( self::$availability[ $extension ] ) ? self::$availability[ $extension ]['reason'] : 'missing_module';
419	$details = isset( self::$availability[ $extension ] ) ? self::$availability[ $extension ]['details'] : array();
420	$available_extensions[ $extension ]['unavailable_reason'] = $reason;
421	$available_extensions[ $extension ]['details'] = $details;
422	}
423	}
424
425	return $available_extensions;
426	}
427
428	/**
429	* Return the list of extensions that are available.
430	*
431	* @since 11.9
432	*
433	* @return array A list of block and plugins and their availability status.
434	*/
435	public static function get_extensions() {
436	if ( ! static::should_load() ) {
437	return array();
438	}
439
440	if ( null === self::$extensions ) {
441	/**
442	* Filter the list of block editor extensions that are available through Jetpack.
443	*
444	* @since 7.0.0
445	*
446	* @param array
447	*/
448	self::$extensions = apply_filters( 'jetpack_set_available_extensions', self::get_available_extensions() );
449
450	if ( ! is_array( self::$extensions ) ) {
451	_doing_it_wrong( __METHOD__, esc_html__( 'The jetpack_set_available_extensions filter must return an array.', 'jetpack' ), '14.9' );
452	self::$extensions = array();
453	}
454	}
455
456	return self::$extensions;
457	}
458
459	/**
460	* Check if an extension/block is already registered
461	*
462	* @since 7.2
463	*
464	* @param string $slug Name of extension/block to check.
465	*
466	* @return bool
467	*/
468	public static function is_registered( $slug ) {
469	return WP_Block_Type_Registry::get_instance()->is_registered( $slug );
470	}
471
472	/**
473	* Check if Gutenberg editor is available
474	*
475	* @since 6.7.0
476	*
477	* @return bool
478	*/
479	public static function is_gutenberg_available() {
480	return true;
481	}
482
483	/**
484	* Check whether conditions indicate Gutenberg Extensions (blocks and plugins) should be loaded
485	*
486	* Loading blocks and plugins is enabled by default and may be disabled via filter:
487	* add_filter( 'jetpack_gutenberg', '__return_false' );
488	*
489	* @since 6.9.0
490	*
491	* @return bool
492	*/
493	public static function should_load() {
494	if ( ! Jetpack::is_connection_ready() && ! ( new Status() )->is_offline_mode() ) {
495	return false;
496	}
497
498	$return = true;
499
500	if ( ! ( new Modules() )->is_active( 'blocks' ) ) {
501	$return = false;
502	}
503
504	/**
505	* Filter to enable Gutenberg blocks.
506	*
507	* Defaults to true if (connected or in offline mode) and the Blocks module is active.
508	*
509	* @since 6.5.0
510	* @since 13.9 Filter is able to activate or deactivate Gutenberg blocks.
511	*
512	* @param bool true Whether to load Gutenberg blocks
513	*/
514	return (bool) apply_filters( 'jetpack_gutenberg', $return );
515	}
516
517	/**
518	* Queue a script to set `Jetpack_Block_Assets_Base_Url`.
519	*
520	* In certain cases Webpack needs to know a base to load additional assets from.
521	* Normally it can determine that itself, but when JS concatenation is involved that tends to confuse it.
522	* We work around that by explicitly outputting a variable with the correct URL.
523	* We set that as its own "script" so we can reliably only output it once.
524	*/
525	private static function register_blocks_assets_base_url() {
526	if ( ! wp_script_is( 'jetpack-blocks-assets-base-url', 'registered' ) ) {
527	// phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion -- No actual script, so no version needed.
528	wp_register_script( 'jetpack-blocks-assets-base-url', false, array(), null, array( 'in_footer' => false ) );
529	$json_encode_flags = JSON_UNESCAPED_SLASHES \| JSON_HEX_TAG \| JSON_HEX_AMP;
530	if ( get_option( 'blog_charset' ) === 'UTF-8' ) {
531	$json_encode_flags \|= JSON_UNESCAPED_UNICODE;
532	}
533	wp_add_inline_script(
534	'jetpack-blocks-assets-base-url',
535	'var Jetpack_Block_Assets_Base_Url=' . wp_json_encode( plugins_url( self::get_blocks_directory(), JETPACK__PLUGIN_FILE ), $json_encode_flags ) . ';',
536	'before'
537	);
538	}
539	}
540
541	/**
542	* Only enqueue block assets when needed.
543	*
544	* @param string $type Slug of the block or absolute path to the block source code directory.
545	* @param array $script_dependencies Script dependencies. Will be merged with automatically
546	* detected script dependencies from the webpack build.
547	*
548	* @return void
549	*/
550	public static function load_assets_as_required( $type, $script_dependencies = array() ) {
551	if ( is_admin() ) {
552	// A block's view assets will not be required in wp-admin.
553	return;
554	}
555
556	// Retrieve the feature from block.json if a path is passed.
557	if ( path_is_absolute( $type ) ) {
558	$metadata = Blocks::get_block_metadata_from_file( Blocks::get_path_to_block_metadata( $type ) );
559	$feature = Blocks::get_block_feature_from_metadata( $metadata );
560
561	if ( ! empty( $feature ) ) {
562	$type = $feature;
563	}
564	}
565
566	$type = sanitize_title_with_dashes( $type );
567	self::load_styles_as_required( $type );
568	self::load_scripts_as_required( $type, $script_dependencies );
569	}
570
571	/**
572	* Only enqueue block sytles when needed.
573	*
574	* @param string $type Slug of the block.
575	*
576	* @since 7.2.0
577	*
578	* @return void
579	*/
580	public static function load_styles_as_required( $type ) {
581	if ( is_admin() ) {
582	// A block's view assets will not be required in wp-admin.
583	return;
584	}
585
586	// Enqueue styles.
587	$style_relative_path = self::get_blocks_directory() . $type . '/view' . ( is_rtl() ? '.rtl' : '' ) . '.css';
588	if ( self::block_has_asset( $style_relative_path ) ) {
589	$style_version = self::get_asset_version( $style_relative_path );
590	$view_style = plugins_url( $style_relative_path, JETPACK__PLUGIN_FILE );
591	$view_style = add_query_arg( 'minify', 'false', $view_style );
592
593	// If this is a customizer preview, render the style directly to the preview after autosave.
594	// phpcs:ignore WordPress.Security.NonceVerification.Recommended
595	if ( is_customize_preview() && ! empty( $_GET['customize_autosaved'] ) ) {
596	// phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet
597	echo '<link rel="stylesheet" id="jetpack-block-' . esc_attr( $type ) . '" href="' . esc_attr( $view_style ) . '&ver=' . esc_attr( $style_version ) . '" media="all">';
598	} else {
599	wp_enqueue_style( 'jetpack-block-' . $type, $view_style, array(), $style_version );
600	wp_style_add_data( 'jetpack-block-' . $type, 'path', JETPACK__PLUGIN_DIR . $style_relative_path );
601	}
602	}
603	}
604
605	/**
606	* Only enqueue block scripts when needed.
607	*
608	* @param string $type Slug of the block.
609	* @param array $script_dependencies Script dependencies. Will be merged with automatically
610	* detected script dependencies from the webpack build.
611	*
612	* @since 7.2.0
613	*
614	* @return void
615	*/
616	public static function load_scripts_as_required( $type, $script_dependencies = array() ) {
617	if ( is_admin() ) {
618	// A block's view assets will not be required in wp-admin.
619	return;
620	}
621
622	self::register_blocks_assets_base_url();
623
624	// Enqueue script.
625	$script_relative_path = self::get_blocks_directory() . $type . '/view.js';
626	$script_deps_path = JETPACK__PLUGIN_DIR . self::get_blocks_directory() . $type . '/view.asset.php';
627	$script_dependencies[] = 'jetpack-blocks-assets-base-url';
628	if ( file_exists( $script_deps_path ) ) {
629	$asset_manifest = include $script_deps_path;
630	$script_dependencies = array_unique( array_merge( $script_dependencies, $asset_manifest['dependencies'] ) );
631	}
632
633	if ( ! Blocks::is_amp_request() && self::block_has_asset( $script_relative_path ) ) {
634	$script_version = self::get_asset_version( $script_relative_path );
635	$view_script = plugins_url( $script_relative_path, JETPACK__PLUGIN_FILE );
636	$view_script = add_query_arg( 'minify', 'false', $view_script );
637	$strategy = self::get_block_js_loading_strategy( $type );
638
639	// Enqueue dependencies.
640	wp_enqueue_script( 'jetpack-block-' . $type, $view_script, $script_dependencies, $script_version, $strategy );
641
642	// If this is a customizer preview, enqueue the dependencies and render the script directly to the preview after autosave.
643	// phpcs:ignore WordPress.Security.NonceVerification.Recommended
644	if ( is_customize_preview() && ! empty( $_GET['customize_autosaved'] ) ) {
645	// The Map block is dependent on wp-element, and it doesn't appear to to be possible to load
646	// this dynamically into the customizer iframe currently.
647	if ( 'map' === $type ) {
648	echo '<div>' . esc_html__( 'No map preview available. Publish and refresh to see this widget.', 'jetpack' ) . '</div>';
649	echo '<script>';
650	echo 'Array.from(document.getElementsByClassName(\'wp-block-jetpack-map\')).forEach(function(element){element.style.display = \'none\';})';
651	echo '</script>';
652	} else {
653	echo '<script id="jetpack-block-' . esc_attr( $type ) . '" src="' . esc_attr( $view_script ) . '&ver=' . esc_attr( $script_version ) . '"></script>';
654	}
655	}
656	}
657	}
658
659	/**
660	* Check if an asset exists for a block.
661	*
662	* @param string $file Path of the file we are looking for.
663	*
664	* @return bool $block_has_asset Does the file exist.
665	*/
666	public static function block_has_asset( $file ) {
667	return file_exists( JETPACK__PLUGIN_DIR . $file );
668	}
669
670	/**
671	* Get the version number to use when loading the file. Allows us to bypass cache when developing.
672	*
673	* @param string $file Path of the file we are looking for.
674	*
675	* @return string $script_version Version number.
676	*/
677	public static function get_asset_version( $file ) {
678	return Jetpack::is_development_version() && self::block_has_asset( $file )
679	? filemtime( JETPACK__PLUGIN_DIR . $file )
680	: JETPACK__VERSION;
681	}
682
683	/**
684	* Load Gutenberg editor assets
685	*
686	* @since 6.7.0
687	*
688	* @return void
689	*/
690	public static function enqueue_block_editor_assets() {
691	if ( ! self::should_load() ) {
692	return;
693	}
694
695	$status = new Status();
696
697	// Required for Analytics. See _inc/lib/admin-pages/class.jetpack-admin-page.php.
698	if ( ! $status->is_offline_mode() && Jetpack::is_connection_ready() ) {
699	wp_enqueue_script( 'jp-tracks', '//stats.wp.com/w.js', array(), gmdate( 'YW' ), true );
700	}
701
702	$blocks_dir = self::get_blocks_directory();
703	$blocks_variation = self::blocks_variation();
704
705	if ( 'production' !== $blocks_variation ) {
706	$blocks_env = '-' . esc_attr( $blocks_variation );
707	} else {
708	$blocks_env = '';
709	}
710
711	self::register_blocks_assets_base_url();
712
713	Assets::register_script(
714	'jetpack-blocks-editor',
715	"{$blocks_dir}editor{$blocks_env}.js",
716	JETPACK__PLUGIN_FILE,
717	array(
718	'textdomain' => 'jetpack',
719	'dependencies' => array( 'jetpack-blocks-assets-base-url' ),
720	)
721	);
722
723	/**
724	* This can be called multiple times per page load in the admin, during the `enqueue_block_assets` action.
725	* These assets are necessary for the admin for editing but are not necessary for each pattern preview.
726	* Therefore we dequeue them, so they don't load for each pattern preview iframe.
727	*/
728	if ( ! wp_should_load_block_editor_scripts_and_styles() ) {
729	wp_dequeue_script( 'jp-tracks' );
730	wp_dequeue_script( 'jetpack-blocks-editor' );
731
732	return;
733	}
734
735	// Hack around #20357 (specifically, that the editor bundle depends on
736	// wp-edit-post but wp-edit-post's styles break the Widget Editor and
737	// Site Editor) until a real fix gets unblocked.
738	// @todo Remove this once #20357 is properly fixed.
739	$wp_styles_fix = wp_styles()->query( 'jetpack-blocks-editor', 'registered' );
740	if ( empty( $wp_styles_fix ) ) {
741	wp_die( 'Your installation of Jetpack is incomplete. Please run "jetpack build plugins/jetpack" in your dev env.' );
742	}
743	wp_styles()->query( 'jetpack-blocks-editor', 'registered' )->deps = array();
744
745	Assets::enqueue_script( 'jetpack-blocks-editor' );
746
747	if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
748	$user = wp_get_current_user();
749	$user_data = array(
750	'email' => $user->user_email,
751	'userid' => $user->ID,
752	'username' => $user->user_login,
753	);
754	$blog_id = get_current_blog_id();
755	$is_current_user_connected = true;
756	} else {
757	$user_data = Jetpack_Tracks_Client::get_connected_user_tracks_identity();
758	$blog_id = Jetpack_Options::get_option( 'id', 0 );
759	$is_current_user_connected = ( new Connection_Manager( 'jetpack' ) )->is_user_connected();
760	}
761
762	if ( $blocks_variation === 'beta' && $is_current_user_connected ) {
763	wp_enqueue_style( 'recoleta-font', '//s1.wp.com/i/fonts/recoleta/css/400.min.css', array(), Constants::get_constant( 'JETPACK__VERSION' ) );
764	}
765	// AI Assistant
766	$ai_assistant_state = array(
767	'is-enabled' => apply_filters( 'jetpack_ai_enabled', true ),
768	);
769
770	$screen_base = null;
771	if ( function_exists( 'get_current_screen' ) ) {
772	$current_screen = get_current_screen();
773	$screen_base = $current_screen ? $current_screen->base : null;
774	}
775
776	$modules = array();
777	if ( class_exists( 'Jetpack_Core_API_Module_List_Endpoint' ) ) {
778	$module_list_endpoint = new Jetpack_Core_API_Module_List_Endpoint();
779	$modules = $module_list_endpoint->get_modules();
780	}
781
782	$jetpack_plan = Jetpack_Plan::get();
783	$initial_state = array(
784	'available_blocks' => self::get_availability(),
785	'blocks_variation' => $blocks_variation,
786	'modules' => $modules,
787	'jetpack' => array(
788	'is_active' => Jetpack::is_connection_ready(),
789	'is_current_user_connected' => $is_current_user_connected,
790	/** This filter is documented in class.jetpack-gutenberg.php */
791	'enable_upgrade_nudge' => apply_filters( 'jetpack_block_editor_enable_upgrade_nudge', false ),
792	'is_private_site' => $status->is_private_site(),
793	'is_coming_soon' => $status->is_coming_soon(),
794	'is_offline_mode' => $status->is_offline_mode(),
795	'is_newsletter_feature_enabled' => class_exists( '\Jetpack_Memberships' ),
796	// this is the equivalent of JP initial state siteData.showMyJetpack (class-jetpack-redux-state-helper)
797	// used to determine if we can link to My Jetpack from the block editor
798	'is_my_jetpack_available' => My_Jetpack_Initializer::should_initialize(),
799	'jetpack_plan' => array(
800	'data' => $jetpack_plan['product_slug'],
801	),
802	/**
803	* Enable the RePublicize UI in the block editor context.
804	*
805	* @module publicize
806	*
807	* @since 10.3.0
808	* @deprecated 11.5 This is a feature flag that is no longer used.
809	*
810	* @param bool true Enable the RePublicize UI in the block editor context. Defaults to true.
811	*/
812	'republicize_enabled' => apply_filters( 'jetpack_block_editor_republicize_feature', true ),
813	),
814	'siteFragment' => $status->get_site_suffix(),
815	'adminUrl' => esc_url( admin_url() ),
816	'tracksUserData' => $user_data,
817	'wpcomBlogId' => $blog_id,
818	'allowedMimeTypes' => wp_get_mime_types(),
819	'siteLocale' => str_replace( '_', '-', get_locale() ),
820	'ai-assistant' => $ai_assistant_state,
821	'screenBase' => $screen_base,
822	/**
823	* Add your own feature flags to the block editor.
824	*
825	* You can access the feature flags in the block editor via hasFeatureFlag( 'your-feature-flag' ) function.
826	*
827	* @since 14.8
828	*
829	* @param array true Enable the RePublicize UI in the block editor context. Defaults to true.
830	*/
831	'feature_flags' => apply_filters( 'jetpack_block_editor_feature_flags', array() ),
832	'pluginBasePath' => plugins_url( '', Constants::get_constant( 'JETPACK__PLUGIN_FILE' ) ),
833	);
834
835	wp_localize_script(
836	'jetpack-blocks-editor',
837	'Jetpack_Editor_Initial_State',
838	$initial_state
839	);
840
841	// Adds Connection package initial state.
842	Connection_Initial_State::render_script( 'jetpack-blocks-editor' );
843	}
844
845	/**
846	* Some blocks do not depend on a specific module,
847	* and can consequently be loaded outside of the usual modules.
848	* We will look for such modules in the extensions/ directory.
849	*
850	* @since 7.1.0
851	* @see wp_common_block_scripts_and_styles()
852	*/
853	public static function load_independent_blocks() {
854	if ( self::should_load() ) {
855	/**
856	* Look for files that match our list of available Jetpack Gutenberg extensions (blocks and plugins).
857	* If available, load them.
858	*/
859	$directories = array( 'blocks', 'plugins', 'extended-blocks' );
860
861	foreach ( static::get_extensions() as $extension ) {
862	foreach ( $directories as $dirname ) {
863	$path = JETPACK__PLUGIN_DIR . "extensions/{$dirname}/{$extension}/{$extension}.php";
864
865	if ( file_exists( $path ) ) {
866	include_once $path;
867	continue 2;
868	}
869	}
870	}
871	}
872	}
873
874	/**
875	* Loads PHP components of block editor extensions.
876	*
877	* @since 8.9.0
878	*/
879	public static function load_block_editor_extensions() {
880	if ( self::should_load() ) {
881	// Block editor extensions to load.
882	$extensions_to_load = array(
883	'extended-blocks',
884	'plugins',
885	);
886
887	// Collect the extension paths.
888	foreach ( $extensions_to_load as $extension_to_load ) {
889	$extensions_folder = glob( JETPACK__PLUGIN_DIR . 'extensions/' . $extension_to_load . '/*' );
890
891	// Require each of the extension files, in case it exists.
892	foreach ( $extensions_folder as $extension_folder ) {
893	$name = basename( $extension_folder );
894	$extension_file_path = JETPACK__PLUGIN_DIR . 'extensions/' . $extension_to_load . '/' . $name . '/' . $name . '.php';
895
896	if ( file_exists( $extension_file_path ) ) {
897	include_once $extension_file_path;
898	}
899	}
900	}
901	}
902	}
903
904	/**
905	* Determine whether a site should use the default set of blocks, or a custom set.
906	* Possible variations are currently beta, experimental, and production.
907	*
908	* @since 8.1.0
909	*
910	* @return string $block_varation production\|beta\|experimental
911	*/
912	public static function blocks_variation() {
913	// Default to production blocks.
914	$block_varation = 'production';
915
916	/*
917	* Prefer to use this JETPACK_BLOCKS_VARIATION constant
918	* or the jetpack_blocks_variation filter
919	* to set the block variation in your code.
920	*/
921	$default = Constants::get_constant( 'JETPACK_BLOCKS_VARIATION' );
922	if ( ! empty( $default ) && in_array( $default, array( 'beta', 'experimental', 'production' ), true ) ) {
923	$block_varation = $default;
924	}
925
926	/**
927	* Alternative to `JETPACK_BETA_BLOCKS`, set to `true` to load Beta Blocks.
928	*
929	* @since 6.9.0
930	* @deprecated 11.8.0 Use jetpack_blocks_variation filter instead.
931	*
932	* @param boolean
933	*/
934	$is_beta = apply_filters_deprecated(
935	'jetpack_load_beta_blocks',
936	array( false ),
937	'jetpack-11.8.0',
938	'jetpack_blocks_variation'
939	);
940
941	/*
942	* Switch to beta blocks if you use the JETPACK_BETA_BLOCKS constant
943	* or the deprecated jetpack_load_beta_blocks filter.
944	* This only applies when not using the newer JETPACK_BLOCKS_VARIATION constant.
945	*/
946	if (
947	empty( $default )
948	&& (
949	$is_beta
950	\|\| Constants::is_true( 'JETPACK_BETA_BLOCKS' )
951	)
952	) {
953	$block_varation = 'beta';
954	}
955
956	/**
957	* Alternative to `JETPACK_EXPERIMENTAL_BLOCKS`, set to `true` to load Experimental Blocks.
958	*
959	* @since 6.9.0
960	* @deprecated 11.8.0 Use jetpack_blocks_variation filter instead.
961	*
962	* @param boolean
963	*/
964	$is_experimental = apply_filters_deprecated(
965	'jetpack_load_experimental_blocks',
966	array( false ),
967	'jetpack-11.8.0',
968	'jetpack_blocks_variation'
969	);
970
971	/*
972	* Switch to experimental blocks if you use the JETPACK_EXPERIMENTAL_BLOCKS constant
973	* or the deprecated jetpack_load_experimental_blocks filter.
974	* This only applies when not using the newer JETPACK_BLOCKS_VARIATION constant.
975	*/
976	if (
977	empty( $default )
978	&& (
979	$is_experimental
980	\|\| Constants::is_true( 'JETPACK_EXPERIMENTAL_BLOCKS' )
981	)
982	) {
983	$block_varation = 'experimental';
984	}
985
986	/**
987	* Allow customizing the variation of blocks in use on a site.
988	* Overwrites any previously set values, whether by constant or filter.
989	*
990	* @since 8.1.0
991	*
992	* @param string $block_variation Can be beta, experimental, and production. Defaults to production.
993	*/
994	return apply_filters( 'jetpack_blocks_variation', $block_varation );
995	}
996
997	/**
998	* Get a list of extensions available for the variation you chose.
999	*
1000	* @since 8.1.0
1001	*
1002	* @param object $preset_extensions_manifest List of extensions available in Jetpack.
1003	* @param string $blocks_variation Subset of blocks. production\|beta\|experimental.
1004	*
1005	* @return array $preset_extensions Array of extensions for that variation
1006	*/
1007	public static function get_extensions_preset_for_variation( $preset_extensions_manifest, $blocks_variation ) {
1008	$preset_extensions = isset( $preset_extensions_manifest->{ $blocks_variation } )
1009	? (array) $preset_extensions_manifest->{ $blocks_variation }
1010	: array();
1011
1012	/*
1013	* Experimental and Beta blocks need the production blocks as well.
1014	*/
1015	if (
1016	'experimental' === $blocks_variation
1017	\|\| 'beta' === $blocks_variation
1018	) {
1019	$production_extensions = isset( $preset_extensions_manifest->production )
1020	? (array) $preset_extensions_manifest->production
1021	: array();
1022
1023	$preset_extensions = array_unique( array_merge( $preset_extensions, $production_extensions ) );
1024	}
1025
1026	/*
1027	* Beta blocks need the experimental blocks as well.
1028	*
1029	* If you've chosen to see Beta blocks,
1030	* we want to make all blocks available to you:
1031	* - Production
1032	* - Experimental
1033	* - Beta
1034	*/
1035	if ( 'beta' === $blocks_variation ) {
1036	$production_extensions = isset( $preset_extensions_manifest->experimental )
1037	? (array) $preset_extensions_manifest->experimental
1038	: array();
1039
1040	$preset_extensions = array_unique( array_merge( $preset_extensions, $production_extensions ) );
1041	}
1042
1043	return $preset_extensions;
1044	}
1045
1046	/**
1047	* Validate a URL used in a SSR block.
1048	*
1049	* @since 8.3.0
1050	*
1051	* @param string $url URL saved as an attribute in block.
1052	* @param array $allowed Array of allowed hosts for that block, or regexes to check against.
1053	* @param bool $is_regex Array of regexes matching the URL that could be used in block.
1054	*
1055	* @return bool\|string
1056	*/
1057	public static function validate_block_embed_url( $url, $allowed = array(), $is_regex = false ) {
1058	if (
1059	empty( $url )
1060	\|\| ! is_array( $allowed )
1061	\|\| empty( $allowed )
1062	) {
1063	return false;
1064	}
1065
1066	$url_components = wp_parse_url( $url );
1067
1068	// Bail early if we cannot find a host.
1069	if ( empty( $url_components['host'] ) ) {
1070	return false;
1071	}
1072
1073	// Normalize URL.
1074	$url = sprintf(
1075	'%s://%s%s%s',
1076	$url_components['scheme'] ?? 'https',
1077	$url_components['host'],
1078	$url_components['path'] ?? '/',
1079	isset( $url_components['query'] ) ? '?' . $url_components['query'] : ''
1080	);
1081
1082	if ( ! empty( $url_components['fragment'] ) ) {
1083	$url = $url . '#' . rawurlencode( $url_components['fragment'] );
1084	}
1085
1086	/*
1087	* If we're using an allowed list of hosts,
1088	* check if the URL belongs to one of the domains allowed for that block.
1089	*/
1090	if (
1091	false === $is_regex
1092	&& in_array( $url_components['host'], $allowed, true )
1093	) {
1094	return $url;
1095	}
1096
1097	/*
1098	* If we are using an array of regexes to check against,
1099	* loop through that.
1100	*/
1101	if ( true === $is_regex ) {
1102	foreach ( $allowed as $regex ) {
1103	if ( 1 === preg_match( $regex, $url ) ) {
1104	return $url;
1105	}
1106	}
1107	}
1108
1109	return false;
1110	}
1111
1112	/**
1113	* Determines whether a preview of the block with an upgrade nudge should
1114	* be displayed for admins on the site frontend.
1115	*
1116	* @since 8.4.0
1117	*
1118	* @param array $availability_for_block The availability for the block.
1119	*
1120	* @return bool
1121	*/
1122	public static function should_show_frontend_preview( $availability_for_block ) {
1123	return (
1124	isset( $availability_for_block['details']['required_plan'] )
1125	&& current_user_can( 'manage_options' )
1126	&& ! is_feed()
1127	);
1128	}
1129
1130	/**
1131	* Output an UpgradeNudge Component on the frontend of a site.
1132	*
1133	* @since 8.4.0
1134	*
1135	* @param string $plan The plan that users need to purchase to make the block work.
1136	*
1137	* @return string
1138	*/
1139	public static function upgrade_nudge( $plan ) {
1140	require_once JETPACK__PLUGIN_DIR . '_inc/lib/components.php';
1141	return Jetpack_Components::render_upgrade_nudge(
1142	array(
1143	'plan' => $plan,
1144	)
1145	);
1146	}
1147
1148	/**
1149	* Output a notice within a block.
1150	*
1151	* @since 8.6.0
1152	*
1153	* @param string $message Notice we want to output.
1154	* @param string $status Status of the notice. Can be one of success, info, warning, error. info by default.
1155	* @param string $classes List of CSS classes.
1156	*
1157	* @return string
1158	*/
1159	public static function notice( $message, $status = 'info', $classes = '' ) {
1160	if (
1161	empty( $message )
1162	\|\| ! in_array( $status, array( 'success', 'info', 'warning', 'error' ), true )
1163	) {
1164	return '';
1165	}
1166
1167	$color = '';
1168	switch ( $status ) {
1169	case 'success':
1170	$color = '#00a32a';
1171	break;
1172	case 'warning':
1173	$color = '#dba617';
1174	break;
1175	case 'error':
1176	$color = '#d63638';
1177	break;
1178	case 'info':
1179	default:
1180	$color = '#72aee6';
1181	break;
1182	}
1183
1184	return sprintf(
1185	'<div class="jetpack-block__notice %1$s %3$s" style="border-left:5px solid %4$s;padding:1em;background-color:#f8f9f9;">%2$s</div>',
1186	esc_attr( $status ),
1187	wp_kses(
1188	$message,
1189	array(
1190	'br' => array(),
1191	'p' => array(),
1192	'a' => array(
1193	'href' => array(),
1194	'target' => array(),
1195	'rel' => array(),
1196	),
1197	)
1198	),
1199	esc_attr( $classes ),
1200	sanitize_hex_color( $color )
1201	);
1202	}
1203
1204	/**
1205	* Retrieve site-specific features for Simple sites.
1206	*
1207	* We're caching the data for the lifetime of the request, because it can be slow to calculate,
1208	* and it can be called multiple times per single request.
1209	*
1210	* We intentionally don't use object caching or any other type of persistent caching,
1211	* in order to avoid complex cache invalidation on subscription addition or removal.
1212	*
1213	* @since 10.7
1214	*
1215	* @return array
1216	*/
1217	private static function get_site_specific_features() {
1218	$current_blog_id = get_current_blog_id();
1219
1220	if ( isset( self::$site_specific_features[ $current_blog_id ] ) ) {
1221	return self::$site_specific_features[ $current_blog_id ];
1222	}
1223
1224	if ( ! class_exists( 'Store_Product_List' ) ) {
1225	require WP_CONTENT_DIR . '/admin-plugins/wpcom-billing/store-product-list.php';
1226	}
1227
1228	$site_specific_features = Store_Product_List::get_site_specific_features_data( $current_blog_id );
1229	self::$site_specific_features[ $current_blog_id ] = $site_specific_features;
1230
1231	return $site_specific_features;
1232	}
1233
1234	/**
1235	* Set the availability of the block as the editor
1236	* is loaded.
1237	*
1238	* @param string $slug Slug of the block.
1239	*/
1240	public static function set_availability_for_plan( $slug ) {
1241	$slug = self::remove_extension_prefix( $slug );
1242
1243	if ( Jetpack_Plan::supports( $slug ) ) {
1244	self::set_extension_available( $slug );
1245	return;
1246	}
1247
1248	// Check what's the minimum plan where the feature is available.
1249	$plan = '';
1250	$features_data = array();
1251	$is_simple_site = defined( 'IS_WPCOM' ) && IS_WPCOM;
1252	$is_atomic_site = ( new Host() )->is_woa_site();
1253
1254	if ( $is_simple_site \|\| $is_atomic_site ) {
1255	// Simple sites.
1256	if ( $is_simple_site ) {
1257	$features_data = self::get_site_specific_features();
1258	} else {
1259	// Atomic sites.
1260	$option = get_option( 'jetpack_active_plan' );
1261	if ( isset( $option['features'] ) ) {
1262	$features_data = $option['features'];
1263	}
1264	}
1265
1266	if ( ! empty( $features_data['available'][ $slug ] ) ) {
1267	$plan = $features_data['available'][ $slug ][0];
1268	} elseif ( isset( self::$wpcom_minimum_plan_fallbacks[ $slug ] ) ) {
1269	// Fallback for features with conditional availability (e.g., sticker-based gating)
1270	// that don't appear in features_data['available'].
1271	$plan = self::$wpcom_minimum_plan_fallbacks[ $slug ];
1272	}
1273	} else {
1274	// Jetpack sites.
1275	$plan = Jetpack_Plan::get_minimum_plan_for_feature( $slug );
1276	}
1277
1278	self::set_extension_unavailable(
1279	$slug,
1280	'missing_plan',
1281	array(
1282	'required_feature' => $slug,
1283	'required_plan' => $plan,
1284	)
1285	);
1286	}
1287
1288	/**
1289	* Wraps the suplied render_callback in a function to check
1290	* the availability of the block before rendering it.
1291	*
1292	* @param string $slug The block slug, used to check for availability.
1293	* @param callable $render_callback The render_callback that will be called if the block is available.
1294	*/
1295	public static function get_render_callback_with_availability_check( $slug, $render_callback ) {
1296	return function ( $prepared_attributes, $block_content, $block ) use ( $render_callback, $slug ) {
1297	$availability = self::get_cached_availability();
1298	$bare_slug = self::remove_extension_prefix( $slug );
1299	if ( isset( $availability[ $bare_slug ] ) && $availability[ $bare_slug ]['available'] ) {
1300	return call_user_func( $render_callback, $prepared_attributes, $block_content, $block );
1301	}
1302
1303	// A preview of the block is rendered for admins on the frontend with an upgrade nudge.
1304	if ( isset( $availability[ $bare_slug ] ) ) {
1305	if ( self::should_show_frontend_preview( $availability[ $bare_slug ] ) ) {
1306	$block_preview = call_user_func( $render_callback, $prepared_attributes, $block_content, $block );
1307
1308	// If the upgrade nudge isn't already being displayed by a parent block, display the nudge.
1309	if ( isset( $block->attributes['shouldDisplayFrontendBanner'] ) && $block->attributes['shouldDisplayFrontendBanner'] ) {
1310	$upgrade_nudge = self::upgrade_nudge( $availability[ $bare_slug ]['details']['required_plan'] );
1311	return $upgrade_nudge . $block_preview;
1312	}
1313
1314	return $block_preview;
1315	}
1316	}
1317
1318	return null;
1319	};
1320	}
1321
1322	/**
1323	* Display a message to site editors and roles above when a block is no longer supported.
1324	* This is only displayed on the frontend.
1325	*
1326	* @since 12.3
1327	*
1328	* @param string $block_content The block content.
1329	* @param array $block The full block, including name and attributes.
1330	*
1331	* @return string
1332	*/
1333	public static function display_deprecated_block_message( $block_content, $block ) {
1334	if ( isset( $block['blockName'] ) && in_array( $block['blockName'], self::$deprecated_blocks, true ) ) {
1335	if ( current_user_can( 'edit_posts' ) ) {
1336	$block_content = self::notice(
1337	__( 'This block is no longer supported. Its contents will no longer be displayed to your visitors and as such this block should be removed.', 'jetpack' ),
1338	'warning',
1339	'jetpack-block-deprecated'
1340	);
1341	} else {
1342	$block_content = '';
1343	}
1344	}
1345
1346	return $block_content;
1347	}
1348
1349	/**
1350	* Register block metadata collection for Jetpack blocks.
1351	* This allows for more efficient block metadata loading by avoiding
1352	* individual block.json file reads at runtime.
1353	*
1354	* Uses wp_register_block_metadata_collection() if the manifest file
1355	* exists. The manifest file is auto-generated during the build process.
1356	*
1357	* Runs on plugins_loaded to ensure registration happens before individual
1358	* blocks register themselves on init.
1359	*
1360	* @static
1361	* @since 14.1
1362	* @return void
1363	*/
1364	public static function register_block_metadata_collection() {
1365	$meta_file_path = JETPACK__PLUGIN_DIR . '_inc/blocks/blocks-manifest.php';
1366	if ( file_exists( $meta_file_path ) ) {
1367	wp_register_block_metadata_collection(
1368	JETPACK__PLUGIN_DIR . '_inc/blocks/',
1369	$meta_file_path
1370	);
1371	}
1372	}
1373
1374	/**
1375	* Set the JS loading strategy for a block.
1376	*
1377	* @param string $block_name The block name.
1378	* @param array\|bool $strategy The JS loading strategy.
1379	*
1380	* @since 15.0
1381	*/
1382	public static function set_block_js_loading_strategy( $block_name, $strategy ) {
1383	self::$block_js_loading_strategies[ $block_name ] = $strategy;
1384	}
1385
1386	/**
1387	* Get the JS loading strategy for a block.
1388	*
1389	* @param string $block_name The block name.
1390	*
1391	* @return array\|bool The JS loading strategy for the block.
1392	*
1393	* @since 15.0
1394	*/
1395	public static function get_block_js_loading_strategy( $block_name ) {
1396	$strategy = array(
1397	'strategy' => 'defer',
1398	'in_footer' => true,
1399	);
1400
1401	if ( isset( self::$block_js_loading_strategies[ $block_name ] ) ) {
1402	$strategy = self::$block_js_loading_strategies[ $block_name ];
1403	}
1404
1405	return $strategy;
1406	}
1407	}
1408
1409	if ( ( new Host() )->is_woa_site() ) {
1410	/**
1411	* Enable upgrade nudge for Atomic sites.
1412	* This feature is false as default,
1413	* so let's enable it through this filter.
1414	*
1415	* More doc: https://github.com/Automattic/jetpack/blob/trunk/projects/plugins/jetpack/extensions/README.md#upgrades-for-blocks
1416	*/
1417	add_filter( 'jetpack_block_editor_enable_upgrade_nudge', '__return_true' );
1418	}
1419