lesheet';
$title = $obj->extra['title'] ?? '';
$tag = sprintf(
"\n",
$rel,
esc_attr( $handle ),
$title ? sprintf( " title='%s'", esc_attr( $title ) ) : '',
$href,
esc_attr( $media )
);
/**
* Filters the HTML link tag of an enqueued style.
*
* @since 2.6.0
* @since 4.3.0 Introduced the `$href` parameter.
* @since 4.5.0 Introduced the `$media` parameter.
*
* @param string $tag The link tag for the enqueued style.
* @param string $handle The style's registered handle.
* @param string $href The stylesheet's source URL.
* @param string $media The stylesheet's media attribute.
*/
$tag = apply_filters( 'style_loader_tag', $tag, $handle, $href, $media );
if ( 'rtl' === $this->text_direction && isset( $obj->extra['rtl'] ) && $obj->extra['rtl'] ) {
if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
$suffix = $obj->extra['suffix'] ?? '';
$rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $src, $ver, "$handle-rtl" ) );
} else {
$rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
}
$rtl_tag = sprintf(
"\n",
$rel,
esc_attr( $handle ),
$title ? sprintf( " title='%s'", esc_attr( $title ) ) : '',
$rtl_href,
esc_attr( $media )
);
/** This filter is documented in wp-includes/class-wp-styles.php */
$rtl_tag = apply_filters( 'style_loader_tag', $rtl_tag, $handle, $rtl_href, $media );
if ( 'replace' === $obj->extra['rtl'] ) {
$tag = $rtl_tag;
} else {
$tag .= $rtl_tag;
}
}
if ( $this->do_concat ) {
$this->print_html .= $tag;
if ( $inline_style_tag ) {
$this->print_html .= $inline_style_tag;
}
} else {
echo $tag;
$this->print_inline_style( $handle );
}
return true;
}
/**
* Adds extra CSS styles to a registered stylesheet.
*
* @since 3.3.0
*
* @param string $handle The style's registered handle.
* @param string $code String containing the CSS styles to be added.
* @return bool True on success, false on failure.
*/
public function add_inline_style( $handle, $code ) {
if ( ! $code ) {
return false;
}
$after = $this->get_data( $handle, 'after' );
if ( ! $after ) {
$after = array();
}
$after[] = $code;
return $this->add_data( $handle, 'after', $after );
}
/**
* Prints extra CSS styles of a registered stylesheet.
*
* @since 3.3.0
*
* @param string $handle The style's registered handle.
* @param bool $display Optional. Whether to print the inline style
* instead of just returning it. Default true.
* @return string|bool False if no data exists, inline styles if `$display` is true,
* true otherwise.
*/
public function print_inline_style( $handle, $display = true ) {
$output = $this->get_data( $handle, 'after' );
if ( empty( $output ) || ! is_array( $output ) ) {
return false;
}
if ( ! $this->do_concat ) {
// Obtain the original `src` for a stylesheet possibly inlined by wp_maybe_inline_styles().
$inlined_src = $this->get_data( $handle, 'inlined_src' );
// If there's only one `after` inline style, and that inline style had been inlined, then use the $inlined_src
// as the sourceURL. Otherwise, if there is more than one inline `after` style associated with the handle,
// then resort to using the handle to construct the sourceURL since there isn't a single source.
if ( count( $output ) === 1 && is_string( $inlined_src ) && strlen( $inlined_src ) > 0 ) {
$source_url = esc_url_raw( $inlined_src );
} else {
$source_url = rawurlencode( "{$handle}-inline-css" );
}
$output[] = sprintf(
'/*# sourceURL=%s */',
$source_url
);
}
$output = implode( "\n", $output );
if ( ! $display ) {
return $output;
}
$processor = new WP_HTML_Tag_Processor( '' );
$processor->next_tag();
$processor->set_attribute( 'id', "{$handle}-inline-css" );
$processor->set_modifiable_text( "\n{$output}\n" );
echo "{$processor->get_updated_html()}\n";
return true;
}
/**
* Overrides the add_data method from WP_Dependencies, to allow unsetting dependencies for conditional styles.
*
* @since 6.9.0
*
* @param string $handle Name of the item. Should be unique.
* @param string $key The data key.
* @param mixed $value The data value.
* @return bool True on success, false on failure.
*/
public function add_data( $handle, $key, $value ) {
if ( ! isset( $this->registered[ $handle ] ) ) {
return false;
}
if ( 'conditional' === $key ) {
$this->registered[ $handle ]->deps = array();
}
return parent::add_data( $handle, $key, $value );
}
/**
* Determines style dependencies.
*
* @since 2.6.0
*
* @see WP_Dependencies::all_deps()
*
* @param string|string[] $handles Item handle (string) or item handles (array of strings).
* @param bool $recursion Optional. Internal flag that function is calling itself.
* Default false.
* @param int|false $group Optional. Group level: level (int), no groups (false).
* Default false.
* @return bool True on success, false on failure.
*/
public function all_deps( $handles, $recursion = false, $group = false ) {
$result = parent::all_deps( $handles, $recursion, $group );
if ( ! $recursion ) {
/**
* Filters the array of enqueued styles before processing for output.
*
* @since 2.6.0
*
* @param string[] $to_do The list of enqueued style handles about to be processed.
*/
$this->to_do = apply_filters( 'print_styles_array', $this->to_do );
}
return $result;
}
/**
* Generates an enqueued style's fully-qualified URL.
*
* @since 2.6.0
*
* @param string $src The source of the enqueued style.
* @param string|false|null $ver The version of the enqueued style.
* @param string $handle The style's registered handle.
* @return string Style's fully-qualified URL.
*/
public function _css_href( $src, $ver, $handle ) {
if ( ! is_bool( $src ) && ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && str_starts_with( $src, $this->content_url ) ) ) {
$src = $this->base_url . $src;
}
$ver_to_add = '';
if ( empty( $ver ) && null !== $ver && is_string( $this->default_version ) ) {
$ver_to_add = $this->default_version;
} elseif ( is_scalar( $ver ) ) {
$ver_to_add = (string) $ver;
}
$added_args = (string) ( $this->args[ $handle ] ?? '' );
if ( '' !== $ver_to_add || '' !== $added_args ) {
$fragment = strstr( $src, '#' );
if ( false !== $fragment ) {
$src = substr( $src, 0, -strlen( $fragment ) );
}
if ( '' !== $ver_to_add ) {
$src .= ( str_contains( $src, '?' ) ? '&' : '?' ) . 'ver=' . rawurlencode( $ver_to_add );
}
if ( '' !== $added_args ) {
$src .= ( str_contains( $src, '?' ) ? '&' : '?' ) . $added_args;
}
if ( false !== $fragment ) {
$src .= $fragment;
}
}
/**
* Filters an enqueued style's fully-qualified URL.
*
* @since 2.6.0
*
* @param string $src The source URL of the enqueued style.
* @param string $handle The style's registered handle.
*/
$src = apply_filters( 'style_loader_src', $src, $handle );
return esc_url( $src );
}
/**
* Whether a handle's source is in a default directory.
*
* @since 2.8.0
*
* @param string $src The source of the enqueued style.
* @return bool True if found, false if not.
*/
public function in_default_dir( $src ) {
if ( ! $this->default_dirs ) {
return true;
}
return array_any( (array) $this->default_dirs, fn( $test ) => str_starts_with( $src, $test ) );
}
/**
* Processes items and dependencies for the footer group.
*
* HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
*
* @since 3.3.0
*
* @see WP_Dependencies::do_items()
*
* @return string[] Handles of items that have been processed.
*/
public function do_footer_items() {
$this->do_items( false, 1 );
return $this->done;
}
/**
* Resets class properties.
*
* @since 3.3.0
*/
public function reset() {
$this->do_concat = false;
$this->concat = '';
$this->concat_version = '';
$this->print_html = '';
}
/**
* Gets a style-specific dependency warning message.
*
* @since 6.9.1
*
* @param string $handle Style handle with missing dependencies.
* @param string[] $missing_dependency_handles Missing dependency handles.
* @return string Formatted, localized warning message.
*/
protected function get_dependency_warning_message( $handle, $missing_dependency_handles ) {
return sprintf(
/* translators: 1: Style handle, 2: List of missing dependency handles. */
__( 'The style with the handle "%1$s" was enqueued with dependencies that are not registered: %2$s.' ),
$handle,
implode( wp_get_list_item_separator(), $missing_dependency_handles )
);
}
}
y abilities that were specified in the constructor are allowed to be
* executed. If the ability is not in the allowed list, an error response
* with code `ability_not_allowed` is returned.
*
* @since 7.0.0
*
* @param FunctionCall $call The function call to execute.
* @return FunctionResponse The response from executing the ability.
*/
public function execute_ability( FunctionCall $call ): FunctionResponse {
$function_name = $call->getName() ?? 'unknown';
$function_id = $call->getId() ?? 'unknown';
if ( ! $this->is_ability_call( $call ) ) {
return new FunctionResponse(
$function_id,
$function_name,
array(
'error' => __( 'Not an ability function call' ),
'code' => 'invalid_ability_call',
)
);
}
$ability_name = self::function_name_to_ability_name( $function_name );
if ( ! isset( $this->allowed_abilities[ $ability_name ] ) ) {
return new FunctionResponse(
$function_id,
$function_name,
array(
/* translators: %s: ability name */
'error' => sprintf( __( 'Ability "%s" was not specified in the allowed abilities list.' ), $ability_name ),
'code' => 'ability_not_allowed',
)
);
}
$ability = wp_get_ability( $ability_name );
if ( ! $ability instanceof WP_Ability ) {
return new FunctionResponse(
$function_id,
$function_name,
array(
/* translators: %s: ability name */
'error' => sprintf( __( 'Ability "%s" not found' ), $ability_name ),
'code' => 'ability_not_found',
)
);
}
$args = $call->getArgs();
$result = $ability->execute( ! empty( $args ) ? $args : null );
if ( is_wp_error( $result ) ) {
return new FunctionResponse(
$function_id,
$function_name,
array(
'error' => $result->get_error_message(),
'code' => $result->get_error_code(),
'data' => $result->get_error_data(),
)
);
}
return new FunctionResponse(
$function_id,
$function_name,
$result
);
}
/**
* Checks if a message contains any ability function calls.
*
* @since 7.0.0
*
* @param Message $message The message to check.
* @return bool True if the message contains ability calls, false otherwise.
*/
public function has_ability_calls( Message $message ): bool {
foreach ( $message->getParts() as $part ) {
if ( $part->getType()->isFunctionCall() ) {
$function_call = $part->getFunctionCall();
if ( $function_call instanceof FunctionCall && $this->is_ability_call( $function_call ) ) {
return true;
}
}
}
return false;
}
/**
* Executes all ability function calls in a message.
*
* @since 7.0.0
*
* @param Message $message The message containing function calls.
* @return Message A new message with function responses.
*/
public function execute_abilities( Message $message ): Message {
$response_parts = array();
foreach ( $message->getParts() as $part ) {
if ( $part->getType()->isFunctionCall() ) {
$function_call = $part->getFunctionCall();
if ( $function_call instanceof FunctionCall && $this->is_ability_call( $function_call ) ) {
$function_response = $this->execute_ability( $function_call );
$response_parts[] = new MessagePart( $function_response );
}
}
}
return new UserMessage( $response_parts );
}
/**
* Converts an ability name to a function name.
*
* Transforms "tec/create_event" to "wpab__tec__create_event".
*
* @since 7.0.0
*
* @param string $ability_name The ability name to convert.
* @return string The function name.
*/
public static function ability_name_to_function_name( string $ability_name ): string {
return self::ABILITY_PREFIX . str_replace( '/', '__', $ability_name );
}
/**
* Converts a function name to an ability name.
*
* Transforms "wpab__tec__create_event" to "tec/create_event".
*
* @since 7.0.0
*
* @param string $function_name The function name to convert.
* @return string The ability name.
*/
public static function function_name_to_ability_name( string $function_name ): string {
$without_prefix = substr( $function_name, strlen( self::ABILITY_PREFIX ) );
return str_replace( '__', '/', $without_prefix );
}
}
object on failure.
*/
public function get_items( $request ) {
$collection = $request->get_param( 'collection' );
if ( null !== $collection && ! WP_Icon_Collections_Registry::get_instance()->is_registered( $collection ) ) {
return new WP_Error(
'rest_icon_collection_not_found',
sprintf(
/* translators: %s: Icon collection slug. */
__( 'Icon collection not found: "%s".' ),
$collection
),
array( 'status' => 404 )
);
}
$response = array();
$search = $request->get_param( 'search' );
$icons = WP_Icons_Registry::get_instance()->get_registered_icons( $search );
foreach ( $icons as $icon ) {
if ( null !== $collection && ( ! isset( $icon['collection'] ) || $icon['collection'] !== $collection ) ) {
continue;
}
$prepared_icon = $this->prepare_item_for_response( $icon, $request );
$response[] = $this->prepare_response_for_collection( $prepared_icon );
}
return rest_ensure_response( $response );
}
/**
* Retrieves a specific icon.
*
* @since 7.0.0
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function get_item( $request ) {
$icon = $this->get_icon( $request['name'] );
if ( is_wp_error( $icon ) ) {
return $icon;
}
$data = $this->prepare_item_for_response( $icon, $request );
return rest_ensure_response( $data );
}
/**
* Retrieves a specific icon from the registry.
*
* @since 7.0.0
*
* @param string $name Icon name.
* @return array|WP_Error Icon data on success, or WP_Error object on failure.
*/
public function get_icon( $name ) {
$registry = WP_Icons_Registry::get_instance();
$icon = $registry->get_registered_icon( $name );
if ( null === $icon ) {
return new WP_Error(
'rest_icon_not_found',
sprintf(
// translators: %s is the name of any user-provided name
__( 'Icon not found: "%s".' ),
$name
),
array( 'status' => 404 )
);
}
return $icon;
}
/**
* Prepare a raw icon before it gets output in a REST API response.
*
* @since 7.0.0
* @since 7.1.0 Added the `collection` field.
*
* @param array $item Raw icon as registered, before any changes.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function prepare_item_for_response( $item, $request ) {
$fields = $this->get_fields_for_response( $request );
$keys = array(
'name' => 'name',
'label' => 'label',
'content' => 'content',
'collection' => 'collection',
);
$data = array();
foreach ( $keys as $item_key => $rest_key ) {
if ( isset( $item[ $item_key ] ) && rest_is_field_included( $rest_key, $fields ) ) {
$data[ $rest_key ] = $item[ $item_key ];
}
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
return rest_ensure_response( $data );
}
/**
* Retrieves the icon schema, conforming to JSON Schema.
*
* @since 7.0.0
* @since 7.1.0 Added the `collection` property.
*
* @return array Item schema data.
*/
public function get_item_schema() {
if ( $this->schema ) {
return $this->add_additional_fields_schema( $this->schema );
}
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'icon',
'type' => 'object',
'properties' => array(
'name' => array(
'description' => __( 'The icon name.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'label' => array(
'description' => __( 'The icon label.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'content' => array(
'description' => __( 'The icon content (SVG markup).' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'collection' => array(
'description' => __( 'The slug of the collection this icon belongs to.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
),
);
$this->schema = $schema;
return $this->add_additional_fields_schema( $this->schema );
}
/**
* Retrieves the query params for the icons collection.
*
* @since 7.0.0
* @since 7.1.0 Added the `collection` parameter.
*
* @return array Collection parameters.
*/
public function get_collection_params() {
$query_params = parent::get_collection_params();
$query_params['context']['default'] = 'view';
$query_params['collection'] = array(
'description' => __( 'Limit results to icons belonging to the given collection slug.' ),
'type' => 'string',
'pattern' => '^[a-z0-9]([a-z0-9_-]*[a-z0-9])?$',
);
return $query_params;
}
}
}
if ( in_array( WP_REST_Search_Controller::PROP_URL, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_URL ] = get_permalink( $post->ID );
}
if ( in_array( WP_REST_Search_Controller::PROP_TYPE, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_TYPE ] = $this->type;
}
if ( in_array( WP_REST_Search_Controller::PROP_SUBTYPE, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_SUBTYPE ] = $post->post_type;
}
return $data;
}
/**
* Prepares links for the search result of a given ID.
*
* @since 5.0.0
*
* @param int $id Item ID.
* @return array Links for the given item.
*/
public function prepare_item_links( $id ) {
$post = get_post( $id );
$links = array();
$item_route = rest_get_route_for_post( $post );
if ( ! empty( $item_route ) ) {
$links['self'] = array(
'href' => rest_url( $item_route ),
'embeddable' => true,
);
}
$links['about'] = array(
'href' => rest_url( 'wp/v2/types/' . $post->post_type ),
);
return $links;
}
/**
* Overwrites the default protected and private title format.
*
* By default, WordPress will show password protected or private posts with a title of
* "Protected: %s" or "Private: %s", as the REST API communicates the status of a post
* in a machine-readable format, we remove the prefix.
*
* @since 5.0.0
*
* @return string Title format.
*/
public function protected_title_format() {
return '%s';
}
/**
* Attempts to detect the route to access a single item.
*
* @since 5.0.0
* @deprecated 5.5.0 Use rest_get_route_for_post()
* @see rest_get_route_for_post()
*
* @param WP_Post $post Post object.
* @return string REST route relative to the REST base URI, or empty string if unknown.
*/
protected function detect_rest_item_route( $post ) {
_deprecated_function( __METHOD__, '5.5.0', 'rest_get_route_for_post()' );
return rest_get_route_for_post( $post );
}
}
$matched_class_name = $class_token;
break;
}
$class_token = strtok( $token_delimiter );
}
if ( null === $matched_class_name ) {
return $block_content;
}
$tags = new WP_HTML_Tag_Processor( $block_content );
if ( $tags->next_tag() ) {
$tags->add_class( 'has-custom-css' );
$tags->add_class( $matched_class_name );
}
return $tags->get_updated_html();
}
add_filter( 'render_block', 'wp_render_custom_css_class_name', 10, 2 );
add_filter( 'render_block_data', 'wp_render_custom_css_support_styles', 10, 1 );
add_action( 'wp_enqueue_scripts', 'wp_enqueue_block_custom_css', 1 );
/**
* Registers the style block attribute for block types that support it.
*
* @param WP_Block_Type $block_type Block Type.
*/
function wp_register_custom_css_support( $block_type ) {
// Setup attributes and styles within that if needed.
if ( ! $block_type->attributes ) {
$block_type->attributes = array();
}
// Check for existing style attribute definition e.g. from block.json.
if ( array_key_exists( 'style', $block_type->attributes ) ) {
return;
}
$has_custom_css_support = block_has_support( $block_type, array( 'customCSS' ), true );
if ( $has_custom_css_support ) {
$block_type->attributes['style'] = array(
'type' => 'object',
);
}
}
/**
* Strips custom CSS (`style.css` in attributes) from all blocks in post content.
*
* Uses {@see WP_Block_Parser::next_token()} to scan block tokens and surgically
* replace only the attribute JSON that changed — no parse_blocks() +
* serialize_blocks() round-trip needed.
*
* @since 7.0.0
* @access private
*
* @param string $content Post content to filter, expected to be escaped with slashes.
* @return string Filtered post content with block custom CSS removed.
*/
function wp_strip_custom_css_from_blocks( $content ) {
if ( ! has_blocks( $content ) ) {
return $content;
}
$unslashed = stripslashes( $content );
$parser = new WP_Block_Parser();
$parser->document = $unslashed;
$parser->offset = 0;
$end = strlen( $unslashed );
$replacements = array();
while ( $parser->offset < $end ) {
$next_token = $parser->next_token();
if ( 'no-more-tokens' === $next_token[0] ) {
break;
}
list( $token_type, , $attrs, $start_offset, $token_length ) = $next_token;
$parser->offset = $start_offset + $token_length;
if ( 'block-opener' !== $token_type && 'void-block' !== $token_type ) {
continue;
}
if ( ! isset( $attrs['style']['css'] ) ) {
continue;
}
// Remove css and clean up empty style.
unset( $attrs['style']['css'] );
if ( empty( $attrs['style'] ) ) {
unset( $attrs['style'] );
}
// Locate the JSON portion within the token.
$token_string = substr( $unslashed, $start_offset, $token_length );
$json_rel_start = strcspn( $token_string, '{' );
$json_rel_end = strrpos( $token_string, '}' );
$json_start = $start_offset + $json_rel_start;
$json_length = $json_rel_end - $json_rel_start + 1;
// Re-encode attributes. If attrs is now empty, remove JSON and trailing space.
if ( empty( $attrs ) ) {
// Remove the trailing space after JSON.
$replacements[] = array( $json_start, $json_length + 1, '' );
} else {
$replacements[] = array( $json_start, $json_length, serialize_block_attributes( $attrs ) );
}
}
if ( empty( $replacements ) ) {
return $content;
}
// Build the result by splicing replacements into the original string.
$result = '';
$was_at = 0;
foreach ( $replacements as $replacement ) {
list( $offset, $length, $new_json ) = $replacement;
$result .= substr( $unslashed, $was_at, $offset - $was_at ) . $new_json;
$was_at = $offset + $length;
}
if ( $was_at < $end ) {
$result .= substr( $unslashed, $was_at );
}
return addslashes( $result );
}
/**
* Adds the filters to strip custom CSS from block content on save.
* Priority of 8 to run before wp_filter_global_styles_post (priority 9) and wp_filter_post_kses (priority 10).
*
* @since 7.0.0
* @access private
*/
function wp_custom_css_kses_init_filters() {
add_filter( 'content_save_pre', 'wp_strip_custom_css_from_blocks', 8 );
add_filter( 'content_filtered_save_pre', 'wp_strip_custom_css_from_blocks', 8 );
}
/**
* Removes the filters that strip custom CSS from block content on save.
* Priority of 8 to run before wp_filter_global_styles_post (priority 9) and wp_filter_post_kses (priority 10).
*
* @since 7.0.0
* @access private
*/
function wp_custom_css_remove_filters() {
remove_filter( 'content_save_pre', 'wp_strip_custom_css_from_blocks', 8 );
remove_filter( 'content_filtered_save_pre', 'wp_strip_custom_css_from_blocks', 8 );
}
/**
* Registers the custom CSS content filters if the user does not have the edit_css capability.
*
* @since 7.0.0
* @access private
*/
function wp_custom_css_kses_init() {
wp_custom_css_remove_filters();
if ( ! current_user_can( 'edit_css' ) ) {
wp_custom_css_kses_init_filters();
}
}
/**
* Initializes custom CSS content filters when imported data should be filtered.
*
* Runs at priority 999 on {@see 'force_filtered_html_on_import'} to ensure it
* fires after general KSES initialization, independently of user capabilities.
* If the input of the filter is true it means we are in an import situation and should
* enable the custom CSS filters, independently of the user capabilities.
*
* @since 7.0.0
* @access private
*
* @param mixed $arg Input argument of the filter.
* @return mixed Input argument of the filter.
*/
function wp_custom_css_force_filtered_html_on_import_filter( $arg ) {
if ( $arg ) {
wp_custom_css_kses_init_filters();
}
return $arg;
}
// Run before wp_filter_global_styles_post (priority 9) and wp_filter_post_kses (priority 10).
add_action( 'init', 'wp_custom_css_kses_init', 20 );
add_action( 'set_current_user', 'wp_custom_css_kses_init' );
add_filter( 'force_filtered_html_on_import', 'wp_custom_css_force_filtered_html_on_import_filter', 999 );
// Register the block support.
WP_Block_Supports::get_instance()->register(
'custom-css',
array(
'register_attribute' => 'wp_register_custom_css_support',
)
);