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<?php
/**
* REST API: WP_REST_Block_Patterns_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 6.0.0
*/
/**
* Core class used to access block patterns via the REST API.
*
* @since 6.0.0
*
* @see WP_REST_Controller
*/
class WP_REST_Block_Patterns_Controller extends WP_REST_Controller {
/**
* Defines whether remote patterns should be loaded.
*
* @since 6.0.0
* @var bool
*/
private $remote_patterns_loaded;
/**
* Constructs the controller.
*
* @since 6.0.0
*/
public function __construct() {
$this->namespace = 'wp/v2';
$this->rest_base = 'block-patterns/patterns';
}
/**
* Registers the routes for the objects of the controller.
*
* @since 6.0.0
*/
public function register_routes() {
register_rest_route(
$this->namespace,
'/' . $this->rest_base,
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Checks whether a given request has permission to read block patterns.
*
* @since 6.0.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
*/
public function get_items_permissions_check( $request ) {
if ( current_user_can( 'edit_posts' ) ) {
return true;
}
foreach ( get_post_types( array( 'show_in_rest' => true ), 'objects' ) as $post_type ) {
if ( current_user_can( $post_type->cap->edit_posts ) ) {
return true;
}
}
return new WP_Error(
'rest_cannot_view',
__( 'Sorry, you are not allowed to view the registered block patterns.' ),
array( 'status' => rest_authorization_required_code() )
);
}
/**
* Retrieves all block patterns.
*
* @since 6.0.0
*
* @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_items( $request ) {
if ( ! $this->remote_patterns_loaded ) {
// Load block patterns from w.org.
_load_remote_block_patterns(); // Patterns with the `core` keyword.
_load_remote_featured_patterns(); // Patterns in the `featured` category.
_register_remote_theme_patterns(); // Patterns requested by current theme.
$this->remote_patterns_loaded = true;
}
$response = array();
$patterns = WP_Block_Patterns_Registry::get_instance()->get_all_registered();
foreach ( $patterns as $pattern ) {
$prepared_pattern = $this->prepare_item_for_response( $pattern, $request );
$response[] = $this->prepare_response_for_collection( $prepared_pattern );
}
return rest_ensure_response( $response );
}
/**
* Prepare a raw block pattern before it gets output in a REST API response.
*
* @since 6.0.0
*
* @param array $item Raw pattern 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',
'title' => 'title',
'description' => 'description',
'viewportWidth' => 'viewport_width',
'blockTypes' => 'block_types',
'categories' => 'categories',
'keywords' => 'keywords',
'content' => 'content',
'inserter' => 'inserter',
);
$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 block pattern schema, conforming to JSON Schema.
*
* @since 6.0.0
*
* @return array Item schema data.
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'block-pattern',
'type' => 'object',
'properties' => array(
'name' => array(
'description' => __( 'The pattern name.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'title' => array(
'description' => __( 'The pattern title, in human readable format.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'description' => array(
'description' => __( 'The pattern detailed description.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'viewport_width' => array(
'description' => __( 'The pattern viewport width for inserter preview.' ),
'type' => 'number',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'block_types' => array(
'description' => __( 'Block types that the pattern is intended to be used with.' ),
'type' => 'array',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'categories' => array(
'description' => __( 'The pattern category slugs.' ),
'type' => 'array',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'keywords' => array(
'description' => __( 'The pattern keywords.' ),
'type' => 'array',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'content' => array(
'description' => __( 'The pattern content.' ),
'type' => 'string',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
'inserter' => array(
'description' => __( 'Determines whether the pattern is visible in inserter.' ),
'type' => 'boolean',
'readonly' => true,
'context' => array( 'view', 'edit', 'embed' ),
),
),
);
return $this->add_additional_fields_schema( $schema );
}
}
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