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<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
* Handles server-side registration and use of all blocks and plugins available in Jetpack for the block editor, aka Gutenberg.
* Works in tandem with client-side block registration via `index.json`
*
* @package Jetpack
*/
/**
* Wrapper function to safely register a gutenberg block type
*
* @param string $slug Slug of the block.
* @param array $args Arguments that are passed into register_block_type.
*
* @see register_block_type
*
* @since 6.7.0
*
* @return WP_Block_Type|false The registered block type on success, or false on failure.
*/
function jetpack_register_block( $slug, $args = array() ) {
if ( 0 !== strpos( $slug, 'jetpack/' ) && ! strpos( $slug, '/' ) ) {
_doing_it_wrong( 'jetpack_register_block', 'Prefix the block with jetpack/ ', '7.1.0' );
$slug = 'jetpack/' . $slug;
}
// Checking whether block is registered to ensure it isn't registered twice.
if ( Jetpack_Gutenberg::is_registered( $slug ) ) {
return false;
}
return register_block_type( $slug, $args );
}
/**
* Helper function to register a Jetpack Gutenberg plugin
*
* @deprecated 7.1.0 Use Jetpack_Gutenberg::set_extension_available() instead
*
* @param string $slug Slug of the plugin.
*
* @since 6.9.0
*
* @return void
*/
function jetpack_register_plugin( $slug ) {
_deprecated_function( __FUNCTION__, '7.1', 'Jetpack_Gutenberg::set_extension_available' );
Jetpack_Gutenberg::register_plugin( $slug );
}
/**
* Set the reason why an extension (block or plugin) is unavailable
*
* @deprecated 7.1.0 Use Jetpack_Gutenberg::set_extension_unavailable() instead
*
* @param string $slug Slug of the block.
* @param string $reason A string representation of why the extension is unavailable.
*
* @since 7.0.0
*
* @return void
*/
function jetpack_set_extension_unavailability_reason( $slug, $reason ) {
_deprecated_function( __FUNCTION__, '7.1', 'Jetpack_Gutenberg::set_extension_unavailable' );
Jetpack_Gutenberg::set_extension_unavailability_reason( $slug, $reason );
}
/**
* General Gutenberg editor specific functionality
*/
class Jetpack_Gutenberg {
/**
* Only these extensions can be registered. Used to control availability of beta blocks.
*
* @var array Extensions whitelist
*/
private static $extensions = array();
/**
* Keeps track of the reasons why a given extension is unavailable.
*
* @var array Extensions availability information
*/
private static $availability = array();
/**
* Prepend the 'jetpack/' prefix to a block name
*
* @param string $block_name The block name.
*
* @return string The prefixed block name.
*/
private static function prepend_block_prefix( $block_name ) {
return 'jetpack/' . $block_name;
}
/**
* Remove the 'jetpack/' or jetpack-' prefix from an extension name
*
* @param string $extension_name The extension name.
*
* @return string The unprefixed extension name.
*/
private static function remove_extension_prefix( $extension_name ) {
if ( wp_startswith( $extension_name, 'jetpack/' ) || wp_startswith( $extension_name, 'jetpack-' ) ) {
return substr( $extension_name, strlen( 'jetpack/' ) );
}
return $extension_name;
}
/**
* Whether two arrays share at least one item
*
* @param array $a An array.
* @param array $b Another array.
*
* @return boolean True if $a and $b share at least one item
*/
protected static function share_items( $a, $b ) {
return count( array_intersect( $a, $b ) ) > 0;
}
/**
* Register a block
*
* @deprecated 7.1.0 Use jetpack_register_block() instead
*
* @param string $slug Slug of the block.
* @param array $args Arguments that are passed into register_block_type().
*/
public static function register_block( $slug, $args ) {
_deprecated_function( __METHOD__, '7.1', 'jetpack_register_block' );
jetpack_register_block( 'jetpack/' . $slug, $args );
}
/**
* Register a plugin
*
* @deprecated 7.1.0 Use Jetpack_Gutenberg::set_extension_available() instead
*
* @param string $slug Slug of the plugin.
*/
public static function register_plugin( $slug ) {
_deprecated_function( __METHOD__, '7.1', 'Jetpack_Gutenberg::set_extension_available' );
self::set_extension_available( $slug );
}
/**
* Register a block
*
* @deprecated 7.0.0 Use jetpack_register_block() instead
*
* @param string $slug Slug of the block.
* @param array $args Arguments that are passed into the register_block_type.
* @param array $availability array containing if a block is available and the reason when it is not.
*/
public static function register( $slug, $args, $availability ) {
_deprecated_function( __METHOD__, '7.0', 'jetpack_register_block' );
if ( isset( $availability['available'] ) && ! $availability['available'] ) {
self::set_extension_unavailability_reason( $slug, $availability['unavailable_reason'] );
} else {
self::register_block( $slug, $args );
}
}
/**
* Set a (non-block) extension as available
*
* @param string $slug Slug of the extension.
*/
public static function set_extension_available( $slug ) {
self::$availability[ self::remove_extension_prefix( $slug ) ] = true;
}
/**
* Set the reason why an extension (block or plugin) is unavailable
*
* @param string $slug Slug of the extension.
* @param string $reason A string representation of why the extension is unavailable.
*/
public static function set_extension_unavailable( $slug, $reason ) {
self::$availability[ self::remove_extension_prefix( $slug ) ] = $reason;
}
/**
* Set the reason why an extension (block or plugin) is unavailable
*
* @deprecated 7.1.0 Use set_extension_unavailable() instead
*
* @param string $slug Slug of the extension.
* @param string $reason A string representation of why the extension is unavailable.
*/
public static function set_extension_unavailability_reason( $slug, $reason ) {
_deprecated_function( __METHOD__, '7.1', 'Jetpack_Gutenberg::set_extension_unavailable' );
self::set_extension_unavailable( $slug, $reason );
}
/**
* Set up a whitelist of allowed block editor extensions
*
* @return void
*/
public static function init() {
if ( ! self::should_load() ) {
return;
}
/**
* Alternative to `JETPACK_BETA_BLOCKS`, set to `true` to load Beta Blocks.
*
* @since 6.9.0
*
* @param boolean
*/
if ( apply_filters( 'jetpack_load_beta_blocks', false ) ) {
Jetpack_Constants::set_constant( 'JETPACK_BETA_BLOCKS', true );
}
/**
* Filter the whitelist of block editor extensions that are available through Jetpack.
*
* @since 7.0.0
*
* @param array
*/
self::$extensions = apply_filters( 'jetpack_set_available_extensions', self::get_jetpack_gutenberg_extensions_whitelist() );
/**
* Filter the whitelist of block editor plugins that are available through Jetpack.
*
* @deprecated 7.0.0 Use jetpack_set_available_extensions instead
*
* @since 6.8.0
*
* @param array
*/
self::$extensions = apply_filters( 'jetpack_set_available_blocks', self::$extensions );
/**
* Filter the whitelist of block editor plugins that are available through Jetpack.
*
* @deprecated 7.0.0 Use jetpack_set_available_extensions instead
*
* @since 6.9.0
*
* @param array
*/
self::$extensions = apply_filters( 'jetpack_set_available_plugins', self::$extensions );
}
/**
* Resets the class to its original state
*
* Used in unit tests
*
* @return void
*/
public static function reset() {
self::$extensions = array();
self::$availability = array();
}
/**
* Return the Gutenberg extensions (blocks and plugins) directory
*
* @return string The Gutenberg extensions directory
*/
public static function get_blocks_directory() {
/**
* Filter to select Gutenberg blocks directory
*
* @since 6.9.0
*
* @param string default: '_inc/blocks/'
*/
return apply_filters( 'jetpack_blocks_directory', '_inc/blocks/' );
}
/**
* Checks for a given .json file in the blocks folder.
*
* @param string $preset The name of the .json file to look for.
*
* @return bool True if the file is found.
*/
public static function preset_exists( $preset ) {
return file_exists( JETPACK__PLUGIN_DIR . self::get_blocks_directory() . $preset . '.json' );
}
/**
* Decodes JSON loaded from a preset file in the blocks folder
*
* @param string $preset The name of the .json file to load.
*
* @return mixed Returns an object if the file is present, or false if a valid .json file is not present.
*/
public static function get_preset( $preset ) {
return json_decode(
// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
file_get_contents( JETPACK__PLUGIN_DIR . self::get_blocks_directory() . $preset . '.json' )
);
}
/**
* Returns a whitelist of Jetpack Gutenberg extensions (blocks and plugins), based on index.json
*
* @return array A list of blocks: eg [ 'publicize', 'markdown' ]
*/
public static function get_jetpack_gutenberg_extensions_whitelist() {
$preset_extensions_manifest = self::preset_exists( 'index' ) ? self::get_preset( 'index' ) : (object) array();
$preset_extensions = isset( $preset_extensions_manifest->production ) ? (array) $preset_extensions_manifest->production : array();
if ( Jetpack_Constants::is_true( 'JETPACK_BETA_BLOCKS' ) ) {
$beta_extensions = isset( $preset_extensions_manifest->beta ) ? (array) $preset_extensions_manifest->beta : array();
return array_unique( array_merge( $preset_extensions, $beta_extensions ) );
}
return $preset_extensions;
}
/**
* Get availability of each block / plugin.
*
* @return array A list of block and plugins and their availablity status
*/
public static function get_availability() {
/**
* Fires before Gutenberg extensions availability is computed.
*
* In the function call you supply, use `jetpack_register_block()` to set a block as available.
* Alternatively, use `Jetpack_Gutenberg::set_extension_available()` (for a non-block plugin), and
* `Jetpack_Gutenberg::set_extension_unavailable()` (if the block or plugin should not be registered
* but marked as unavailable).
*
* @since 7.0.0
*/
do_action( 'jetpack_register_gutenberg_extensions' );
$available_extensions = array();
foreach ( self::$extensions as $extension ) {
$is_available = self::is_registered( 'jetpack/' . $extension ) ||
( isset( self::$availability[ $extension ] ) && true === self::$availability[ $extension ] );
$available_extensions[ $extension ] = array(
'available' => $is_available,
);
if ( ! $is_available ) {
$reason = isset( self::$availability[ $extension ] ) ? self::$availability[ $extension ] : 'missing_module';
$available_extensions[ $extension ]['unavailable_reason'] = $reason;
}
}
$unwhitelisted_blocks = array();
$all_registered_blocks = WP_Block_Type_Registry::get_instance()->get_all_registered();
foreach ( $all_registered_blocks as $block_name => $block_type ) {
if ( ! wp_startswith( $block_name, 'jetpack/' ) || isset( $block_type->parent ) ) {
continue;
}
$unprefixed_block_name = self::remove_extension_prefix( $block_name );
if ( in_array( $unprefixed_block_name, self::$extensions, true ) ) {
continue;
}
$unwhitelisted_blocks[ $unprefixed_block_name ] = array(
'available' => false,
'unavailable_reason' => 'not_whitelisted',
);
}
// Finally: Unwhitelisted non-block extensions. These are in $availability.
$unwhitelisted_extensions = array_fill_keys(
array_diff( array_keys( self::$availability ), self::$extensions ),
array(
'available' => false,
'unavailable_reason' => 'not_whitelisted',
)
);
return array_merge( $available_extensions, $unwhitelisted_blocks, $unwhitelisted_extensions );
}
/**
* Check if an extension/block is already registered
*
* @since 7.2
*
* @param string $slug Name of extension/block to check.
*
* @return bool
*/
public static function is_registered( $slug ) {
return WP_Block_Type_Registry::get_instance()->is_registered( $slug );
}
/**
* Check if Gutenberg editor is available
*
* @since 6.7.0
*
* @return bool
*/
public static function is_gutenberg_available() {
return true;
}
/**
* Check whether conditions indicate Gutenberg Extensions (blocks and plugins) should be loaded
*
* Loading blocks and plugins is enabled by default and may be disabled via filter:
* add_filter( 'jetpack_gutenberg', '__return_false' );
*
* @since 6.9.0
*
* @return bool
*/
public static function should_load() {
if ( ! Jetpack::is_active() && ! Jetpack::is_development_mode() ) {
return false;
}
/**
* Filter to disable Gutenberg blocks
*
* @since 6.5.0
*
* @param bool true Whether to load Gutenberg blocks
*/
return (bool) apply_filters( 'jetpack_gutenberg', true );
}
/**
* Only enqueue block assets when needed.
*
* @param string $type Slug of the block.
* @param array $script_dependencies An array of view-side Javascript dependencies to be enqueued.
*
* @return void
*/
public static function load_assets_as_required( $type, $script_dependencies = array() ) {
if ( is_admin() ) {
// A block's view assets will not be required in wp-admin.
return;
}
$type = sanitize_title_with_dashes( $type );
self::load_styles_as_required( $type );
self::load_scripts_as_required( $type, $script_dependencies );
}
/**
* Only enqueue block sytles when needed.
*
* @param string $type Slug of the block.
*
* @since 7.2.0
*
* @return void
*/
public static function load_styles_as_required( $type ) {
if ( is_admin() ) {
// A block's view assets will not be required in wp-admin.
return;
}
// Enqueue styles.
$style_relative_path = self::get_blocks_directory() . $type . '/view' . ( is_rtl() ? '.rtl' : '' ) . '.css';
if ( self::block_has_asset( $style_relative_path ) ) {
$style_version = self::get_asset_version( $style_relative_path );
$view_style = plugins_url( $style_relative_path, JETPACK__PLUGIN_FILE );
wp_enqueue_style( 'jetpack-block-' . $type, $view_style, array(), $style_version );
}
}
/**
* Only enqueue block scripts when needed.
*
* @param string $type Slug of the block.
* @param array $script_dependencies An array of view-side Javascript dependencies to be enqueued.
*
* @since 7.2.0
*
* @return void
*/
public static function load_scripts_as_required( $type, $script_dependencies = array() ) {
if ( is_admin() ) {
// A block's view assets will not be required in wp-admin.
return;
}
// Enqueue script.
$script_relative_path = self::get_blocks_directory() . $type . '/view.js';
if ( self::block_has_asset( $script_relative_path ) ) {
$script_version = self::get_asset_version( $script_relative_path );
$view_script = plugins_url( $script_relative_path, JETPACK__PLUGIN_FILE );
wp_enqueue_script( 'jetpack-block-' . $type, $view_script, $script_dependencies, $script_version, false );
}
wp_localize_script(
'jetpack-block-' . $type,
'Jetpack_Block_Assets_Base_Url',
plugins_url( self::get_blocks_directory(), JETPACK__PLUGIN_FILE )
);
}
/**
* Check if an asset exists for a block.
*
* @param string $file Path of the file we are looking for.
*
* @return bool $block_has_asset Does the file exist.
*/
public static function block_has_asset( $file ) {
return file_exists( JETPACK__PLUGIN_DIR . $file );
}
/**
* Get the version number to use when loading the file. Allows us to bypass cache when developing.
*
* @param string $file Path of the file we are looking for.
*
* @return string $script_version Version number.
*/
public static function get_asset_version( $file ) {
return Jetpack::is_development_version() && self::block_has_asset( $file )
? filemtime( JETPACK__PLUGIN_DIR . $file )
: JETPACK__VERSION;
}
/**
* Load Gutenberg editor assets
*
* @since 6.7.0
*
* @return void
*/
public static function enqueue_block_editor_assets() {
if ( ! self::should_load() ) {
return;
}
$rtl = is_rtl() ? '.rtl' : '';
$beta = Jetpack_Constants::is_true( 'JETPACK_BETA_BLOCKS' ) ? '-beta' : '';
$blocks_dir = self::get_blocks_directory();
$editor_script = plugins_url( "{$blocks_dir}editor{$beta}.js", JETPACK__PLUGIN_FILE );
$editor_style = plugins_url( "{$blocks_dir}editor{$beta}{$rtl}.css", JETPACK__PLUGIN_FILE );
$version = Jetpack::is_development_version() && file_exists( JETPACK__PLUGIN_DIR . $blocks_dir . 'editor.js' )
? filemtime( JETPACK__PLUGIN_DIR . $blocks_dir . 'editor.js' )
: JETPACK__VERSION;
if ( method_exists( 'Jetpack', 'build_raw_urls' ) ) {
$site_fragment = Jetpack::build_raw_urls( home_url() );
} elseif ( class_exists( 'WPCOM_Masterbar' ) && method_exists( 'WPCOM_Masterbar', 'get_calypso_site_slug' ) ) {
$site_fragment = WPCOM_Masterbar::get_calypso_site_slug( get_current_blog_id() );
} else {
$site_fragment = '';
}
wp_enqueue_script(
'jetpack-blocks-editor',
$editor_script,
array(
'lodash',
'wp-api-fetch',
'wp-blob',
'wp-blocks',
'wp-components',
'wp-compose',
'wp-data',
'wp-date',
'wp-edit-post',
'wp-editor',
'wp-element',
'wp-hooks',
'wp-i18n',
'wp-keycodes',
'wp-plugins',
'wp-polyfill',
'wp-rich-text',
'wp-token-list',
'wp-url',
),
$version,
false
);
wp_localize_script(
'jetpack-blocks-editor',
'Jetpack_Block_Assets_Base_Url',
plugins_url( $blocks_dir . '/', JETPACK__PLUGIN_FILE )
);
wp_localize_script(
'jetpack-blocks-editor',
'Jetpack_Editor_Initial_State',
array(
'available_blocks' => self::get_availability(),
'jetpack' => array( 'is_active' => Jetpack::is_active() ),
'siteFragment' => $site_fragment,
)
);
wp_set_script_translations( 'jetpack-blocks-editor', 'jetpack', plugins_url( 'languages/json', JETPACK__PLUGIN_FILE ) );
// Adding a filter late to allow every other filter to process the path, including the CDN.
add_filter( 'pre_load_script_translations', array( __CLASS__, 'filter_pre_load_script_translations' ), 1000, 3 );
wp_enqueue_style( 'jetpack-blocks-editor', $editor_style, array(), $version );
}
/**
* A workaround for setting i18n data for WordPress client-side i18n mechanism.
* We are not yet using dotorg language packs for the editor file, so this short-circuits
* the translation loading and feeds our JSON data directly into the translation getter.
*
* @param NULL $null not used.
* @param String $file the file path that is being loaded, ignored.
* @param String $handle the script handle.
* @return NULL|String the translation data only if we're working with our handle.
*/
public static function filter_pre_load_script_translations( $null, $file, $handle ) {
if ( 'jetpack-blocks-editor' !== $handle ) {
return null;
}
return Jetpack::get_i18n_data_json();
}
/**
* Some blocks do not depend on a specific module,
* and can consequently be loaded outside of the usual modules.
* We will look for such modules in the extensions/ directory.
*
* @since 7.1.0
*/
public static function load_independent_blocks() {
if ( self::should_load() ) {
/**
* Look for files that match our list of available Jetpack Gutenberg extensions (blocks and plugins).
* If available, load them.
*/
foreach ( self::$extensions as $extension ) {
$extension_file_glob = glob( JETPACK__PLUGIN_DIR . 'extensions/*/' . $extension . '/' . $extension . '.php' );
if ( ! empty( $extension_file_glob ) ) {
include_once $extension_file_glob[0];
}
}
}
}
}