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Edit File : class-wp-rest-widgets-controller.php \| Size : 26.26 KB
<?php /** * REST API: WP_REST_Widgets_Controller class * * @package WordPress * @subpackage REST_API * @since 5.8.0 / /* * Core class to access widgets via the REST API. * * @since 5.8.0 * * @see WP_REST_Controller / class WP_REST_Widgets_Controller extends WP_REST_Controller { /* * Tracks whether {@see retrieve_widgets()} has been called in the current request. * * @since 5.9.0 * @var bool / protected $widgets_retrieved = false; /* * Whether the controller supports batching. * * @since 5.9.0 * @var array / protected $allow_batch = array( 'v1' => true ); /* * Widgets controller constructor. * * @since 5.8.0 / public function __construct() { $this->namespace = 'wp/v2'; $this->rest_base = 'widgets'; } /* * Registers the widget routes for the controller. * * @since 5.8.0 / 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' ), 'args' => $this->get_collection_params(), ), array( 'methods' => WP_REST_Server::CREATABLE, 'callback' => array( $this, 'create_item' ), 'permission_callback' => array( $this, 'create_item_permissions_check' ), 'args' => $this->get_endpoint_args_for_item_schema(), ), 'allow_batch' => $this->allow_batch, 'schema' => array( $this, 'get_public_item_schema' ), ) ); register_rest_route( $this->namespace, $this->rest_base . '/(?P<id>[\w\-]+)', array( array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_item' ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'args' => array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), ), ), array( 'methods' => WP_REST_Server::EDITABLE, 'callback' => array( $this, 'update_item' ), 'permission_callback' => array( $this, 'update_item_permissions_check' ), 'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ), ), array( 'methods' => WP_REST_Server::DELETABLE, 'callback' => array( $this, 'delete_item' ), 'permission_callback' => array( $this, 'delete_item_permissions_check' ), 'args' => array( 'force' => array( 'description' => __( 'Whether to force removal of the widget, or move it to the inactive sidebar.' ), 'type' => 'boolean', ), ), ), 'allow_batch' => $this->allow_batch, 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /* * Checks if a given request has access to get widgets. * * @since 5.8.0 * * @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 ) { $this->retrieve_widgets(); if ( isset( $request['sidebar'] ) && $this->check_read_sidebar_permission( $request['sidebar'] ) ) { return true; } foreach ( wp_get_sidebars_widgets() as $sidebar_id => $widget_ids ) { if ( $this->check_read_sidebar_permission( $sidebar_id ) ) { return true; } } return $this->permissions_check( $request ); } /* * Retrieves a collection of widgets. * * @since 5.8.0 * * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response Response object. / public function get_items( $request ) { if ( $request->is_method( 'HEAD' ) ) { // Return early as this handler doesn't add any response headers. return new WP_REST_Response( array() ); } $this->retrieve_widgets(); $prepared = array(); $permissions_check = $this->permissions_check( $request ); foreach ( wp_get_sidebars_widgets() as $sidebar_id => $widget_ids ) { if ( isset( $request['sidebar'] ) && $sidebar_id !== $request['sidebar'] ) { continue; } if ( is_wp_error( $permissions_check ) && ! $this->check_read_sidebar_permission( $sidebar_id ) ) { continue; } foreach ( $widget_ids as $widget_id ) { $response = $this->prepare_item_for_response( compact( 'sidebar_id', 'widget_id' ), $request ); if ( ! is_wp_error( $response ) ) { $prepared[] = $this->prepare_response_for_collection( $response ); } } } return new WP_REST_Response( $prepared ); } /* * Checks if a given request has access to get a widget. * * @since 5.8.0 * * @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_item_permissions_check( $request ) { $this->retrieve_widgets(); $widget_id = $request['id']; $sidebar_id = wp_find_widgets_sidebar( $widget_id ); if ( $sidebar_id && $this->check_read_sidebar_permission( $sidebar_id ) ) { return true; } return $this->permissions_check( $request ); } /* * Checks if a sidebar can be read publicly. * * @since 5.9.0 * * @param string $sidebar_id The sidebar ID. * @return bool Whether the sidebar can be read. / protected function check_read_sidebar_permission( $sidebar_id ) { $sidebar = wp_get_sidebar( $sidebar_id ); return ! empty( $sidebar['show_in_rest'] ); } /* * Gets an individual widget. * * @since 5.8.0 * * @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 ) { $this->retrieve_widgets(); $widget_id = $request['id']; $sidebar_id = wp_find_widgets_sidebar( $widget_id ); if ( is_null( $sidebar_id ) ) { return new WP_Error( 'rest_widget_not_found', __( 'No widget was found with that id.' ), array( 'status' => 404 ) ); } return $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request ); } /* * Checks if a given request has access to create widgets. * * @since 5.8.0 * * @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 create_item_permissions_check( $request ) { return $this->permissions_check( $request ); } /* * Creates a widget. * * @since 5.8.0 * * @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 create_item( $request ) { $sidebar_id = $request['sidebar']; $widget_id = $this->save_widget( $request, $sidebar_id ); if ( is_wp_error( $widget_id ) ) { return $widget_id; } wp_assign_widget_to_sidebar( $widget_id, $sidebar_id ); $request['context'] = 'edit'; $response = $this->prepare_item_for_response( compact( 'sidebar_id', 'widget_id' ), $request ); if ( is_wp_error( $response ) ) { return $response; } $response->set_status( 201 ); return $response; } /* * Checks if a given request has access to update widgets. * * @since 5.8.0 * * @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 update_item_permissions_check( $request ) { return $this->permissions_check( $request ); } /* * Updates an existing widget. * * @since 5.8.0 * * @global WP_Widget_Factory $wp_widget_factory * * @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 update_item( $request ) { global $wp_widget_factory; / * retrieve_widgets() contains logic to move "hidden" or "lost" widgets to the * wp_inactive_widgets sidebar based on the contents of the $sidebars_widgets global. * * When batch requests are processed, this global is not properly updated by previous * calls, resulting in widgets incorrectly being moved to the wp_inactive_widgets * sidebar. * * See https://core.trac.wordpress.org/ticket/53657. / wp_get_sidebars_widgets(); $this->retrieve_widgets(); $widget_id = $request['id']; $sidebar_id = wp_find_widgets_sidebar( $widget_id ); // Allow sidebar to be unset or missing when widget is not a WP_Widget. $parsed_id = wp_parse_widget_id( $widget_id ); $widget_object = $wp_widget_factory->get_widget_object( $parsed_id['id_base'] ); if ( is_null( $sidebar_id ) && $widget_object ) { return new WP_Error( 'rest_widget_not_found', __( 'No widget was found with that id.' ), array( 'status' => 404 ) ); } if ( $request->has_param( 'instance' ) \|\| $request->has_param( 'form_data' ) ) { $maybe_error = $this->save_widget( $request, $sidebar_id ); if ( is_wp_error( $maybe_error ) ) { return $maybe_error; } } if ( $request->has_param( 'sidebar' ) ) { if ( $sidebar_id !== $request['sidebar'] ) { $sidebar_id = $request['sidebar']; wp_assign_widget_to_sidebar( $widget_id, $sidebar_id ); } } $request['context'] = 'edit'; return $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request ); } /* * Checks if a given request has access to delete widgets. * * @since 5.8.0 * * @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 delete_item_permissions_check( $request ) { return $this->permissions_check( $request ); } /* * Deletes a widget. * * @since 5.8.0 * * @global WP_Widget_Factory $wp_widget_factory * @global array $wp_registered_widget_updates The registered widget update functions. * * @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 delete_item( $request ) { global $wp_widget_factory, $wp_registered_widget_updates; / * retrieve_widgets() contains logic to move "hidden" or "lost" widgets to the * wp_inactive_widgets sidebar based on the contents of the $sidebars_widgets global. * * When batch requests are processed, this global is not properly updated by previous * calls, resulting in widgets incorrectly being moved to the wp_inactive_widgets * sidebar. * * See https://core.trac.wordpress.org/ticket/53657. / wp_get_sidebars_widgets(); $this->retrieve_widgets(); $widget_id = $request['id']; $sidebar_id = wp_find_widgets_sidebar( $widget_id ); if ( is_null( $sidebar_id ) ) { return new WP_Error( 'rest_widget_not_found', __( 'No widget was found with that id.' ), array( 'status' => 404 ) ); } $request['context'] = 'edit'; if ( $request['force'] ) { $response = $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request ); $parsed_id = wp_parse_widget_id( $widget_id ); $id_base = $parsed_id['id_base']; $original_post = $_POST; $original_request = $_REQUEST; $_POST = array( 'sidebar' => $sidebar_id, "widget-$id_base" => array(), 'the-widget-id' => $widget_id, 'delete_widget' => '1', ); $_REQUEST = $_POST; /* This action is documented in wp-admin/widgets-form.php / do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base ); $callback = $wp_registered_widget_updates[ $id_base ]['callback']; $params = $wp_registered_widget_updates[ $id_base ]['params']; if ( is_callable( $callback ) ) { ob_start(); call_user_func_array( $callback, $params ); ob_end_clean(); } $_POST = $original_post; $_REQUEST = $original_request; $widget_object = $wp_widget_factory->get_widget_object( $id_base ); if ( $widget_object ) { / * WP_Widget sets `updated = true` after an update to prevent more than one widget * from being saved per request. This isn't what we want in the REST API, though, * as we support batch requests. / $widget_object->updated = false; } wp_assign_widget_to_sidebar( $widget_id, '' ); $response->set_data( array( 'deleted' => true, 'previous' => $response->get_data(), ) ); } else { wp_assign_widget_to_sidebar( $widget_id, 'wp_inactive_widgets' ); $response = $this->prepare_item_for_response( array( 'sidebar_id' => 'wp_inactive_widgets', 'widget_id' => $widget_id, ), $request ); } /* * Fires after a widget is deleted via the REST API. * * @since 5.8.0 * * @param string $widget_id ID of the widget marked for deletion. * @param string $sidebar_id ID of the sidebar the widget was deleted from. * @param WP_REST_Response\|WP_Error $response The response data, or WP_Error object on failure. * @param WP_REST_Request $request The request sent to the API. / do_action( 'rest_delete_widget', $widget_id, $sidebar_id, $response, $request ); return $response; } /* * Performs a permissions check for managing widgets. * * @since 5.8.0 * * @param WP_REST_Request $request Full details about the request. * @return true\|WP_Error / protected function permissions_check( $request ) { if ( ! current_user_can( 'edit_theme_options' ) ) { return new WP_Error( 'rest_cannot_manage_widgets', __( 'Sorry, you are not allowed to manage widgets on this site.' ), array( 'status' => rest_authorization_required_code(), ) ); } return true; } /* * Looks for "lost" widgets once per request. * * @since 5.9.0 * * @see retrieve_widgets() / protected function retrieve_widgets() { if ( ! $this->widgets_retrieved ) { retrieve_widgets(); $this->widgets_retrieved = true; } } /* * Saves the widget in the request object. * * @since 5.8.0 * * @global WP_Widget_Factory $wp_widget_factory * @global array $wp_registered_widget_updates The registered widget update functions. * * @param WP_REST_Request $request Full details about the request. * @param string $sidebar_id ID of the sidebar the widget belongs to. * @return string\|WP_Error The saved widget ID. / protected function save_widget( $request, $sidebar_id ) { global $wp_widget_factory, $wp_registered_widget_updates; require_once ABSPATH . 'wp-admin/includes/widgets.php'; // For next_widget_id_number(). if ( isset( $request['id'] ) ) { // Saving an existing widget. $id = $request['id']; $parsed_id = wp_parse_widget_id( $id ); $id_base = $parsed_id['id_base']; $number = isset( $parsed_id['number'] ) ? $parsed_id['number'] : null; $widget_object = $wp_widget_factory->get_widget_object( $id_base ); $creating = false; } elseif ( $request['id_base'] ) { // Saving a new widget. $id_base = $request['id_base']; $widget_object = $wp_widget_factory->get_widget_object( $id_base ); $number = $widget_object ? next_widget_id_number( $id_base ) : null; $id = $widget_object ? $id_base . '-' . $number : $id_base; $creating = true; } else { return new WP_Error( 'rest_invalid_widget', __( 'Widget type (id_base) is required.' ), array( 'status' => 400 ) ); } if ( ! isset( $wp_registered_widget_updates[ $id_base ] ) ) { return new WP_Error( 'rest_invalid_widget', __( 'The provided widget type (id_base) cannot be updated.' ), array( 'status' => 400 ) ); } if ( isset( $request['instance'] ) ) { if ( ! $widget_object ) { return new WP_Error( 'rest_invalid_widget', __( 'Cannot set instance on a widget that does not extend WP_Widget.' ), array( 'status' => 400 ) ); } if ( isset( $request['instance']['raw'] ) ) { if ( empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { return new WP_Error( 'rest_invalid_widget', __( 'Widget type does not support raw instances.' ), array( 'status' => 400 ) ); } $instance = $request['instance']['raw']; } elseif ( isset( $request['instance']['encoded'], $request['instance']['hash'] ) ) { $serialized_instance = base64_decode( $request['instance']['encoded'] ); if ( ! hash_equals( wp_hash( $serialized_instance ), $request['instance']['hash'] ) ) { return new WP_Error( 'rest_invalid_widget', __( 'The provided instance is malformed.' ), array( 'status' => 400 ) ); } $instance = unserialize( $serialized_instance ); } else { return new WP_Error( 'rest_invalid_widget', __( 'The provided instance is invalid. Must contain raw OR encoded and hash.' ), array( 'status' => 400 ) ); } $form_data = array( "widget-$id_base" => array( $number => $instance, ), 'sidebar' => $sidebar_id, ); } elseif ( isset( $request['form_data'] ) ) { $form_data = $request['form_data']; } else { $form_data = array(); } $original_post = $_POST; $original_request = $_REQUEST; foreach ( $form_data as $key => $value ) { $slashed_value = wp_slash( $value ); $_POST[ $key ] = $slashed_value; $_REQUEST[ $key ] = $slashed_value; } $callback = $wp_registered_widget_updates[ $id_base ]['callback']; $params = $wp_registered_widget_updates[ $id_base ]['params']; if ( is_callable( $callback ) ) { ob_start(); call_user_func_array( $callback, $params ); ob_end_clean(); } $_POST = $original_post; $_REQUEST = $original_request; if ( $widget_object ) { // Register any multi-widget that the update callback just created. $widget_object->_set( $number ); $widget_object->_register_one( $number ); / * WP_Widget sets `updated = true` after an update to prevent more than one widget * from being saved per request. This isn't what we want in the REST API, though, * as we support batch requests. / $widget_object->updated = false; } /* * Fires after a widget is created or updated via the REST API. * * @since 5.8.0 * * @param string $id ID of the widget being saved. * @param string $sidebar_id ID of the sidebar containing the widget being saved. * @param WP_REST_Request $request Request object. * @param bool $creating True when creating a widget, false when updating. / do_action( 'rest_after_save_widget', $id, $sidebar_id, $request, $creating ); return $id; } /* * Prepares the widget for the REST response. * * @since 5.8.0 * * @global WP_Widget_Factory $wp_widget_factory * @global array $wp_registered_widgets The registered widgets. * * @param array $item An array containing a widget_id and sidebar_id. * @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 ) { global $wp_widget_factory, $wp_registered_widgets; $widget_id = $item['widget_id']; $sidebar_id = $item['sidebar_id']; if ( ! isset( $wp_registered_widgets[ $widget_id ] ) ) { return new WP_Error( 'rest_invalid_widget', __( 'The requested widget is invalid.' ), array( 'status' => 500 ) ); } $widget = $wp_registered_widgets[ $widget_id ]; // Don't prepare the response body for HEAD requests. if ( $request->is_method( 'HEAD' ) ) { /* This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php / return apply_filters( 'rest_prepare_widget', new WP_REST_Response( array() ), $widget, $request ); } $parsed_id = wp_parse_widget_id( $widget_id ); $fields = $this->get_fields_for_response( $request ); $prepared = array( 'id' => $widget_id, 'id_base' => $parsed_id['id_base'], 'sidebar' => $sidebar_id, 'rendered' => '', 'rendered_form' => null, 'instance' => null, ); if ( rest_is_field_included( 'rendered', $fields ) && 'wp_inactive_widgets' !== $sidebar_id ) { $prepared['rendered'] = trim( wp_render_widget( $widget_id, $sidebar_id ) ); } if ( rest_is_field_included( 'rendered_form', $fields ) ) { $rendered_form = wp_render_widget_control( $widget_id ); if ( ! is_null( $rendered_form ) ) { $prepared['rendered_form'] = trim( $rendered_form ); } } if ( rest_is_field_included( 'instance', $fields ) ) { $widget_object = $wp_widget_factory->get_widget_object( $parsed_id['id_base'] ); if ( $widget_object && isset( $parsed_id['number'] ) ) { $all_instances = $widget_object->get_settings(); $instance = $all_instances[ $parsed_id['number'] ]; $serialized_instance = serialize( $instance ); $prepared['instance']['encoded'] = base64_encode( $serialized_instance ); $prepared['instance']['hash'] = wp_hash( $serialized_instance ); if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { // Use new stdClass so that JSON result is {} and not []. $prepared['instance']['raw'] = empty( $instance ) ? new stdClass() : $instance; } } } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $prepared = $this->add_additional_fields_to_object( $prepared, $request ); $prepared = $this->filter_response_by_context( $prepared, $context ); $response = rest_ensure_response( $prepared ); if ( rest_is_field_included( '_links', $fields ) \|\| rest_is_field_included( '_embedded', $fields ) ) { $response->add_links( $this->prepare_links( $prepared ) ); } /* * Filters the REST API response for a widget. * * @since 5.8.0 * * @param WP_REST_Response\|WP_Error $response The response object, or WP_Error object on failure. * @param array $widget The registered widget data. * @param WP_REST_Request $request Request used to generate the response. / return apply_filters( 'rest_prepare_widget', $response, $widget, $request ); } /* * Prepares links for the widget. * * @since 5.8.0 * * @param array $prepared Widget. * @return array Links for the given widget. / protected function prepare_links( $prepared ) { $id_base = ! empty( $prepared['id_base'] ) ? $prepared['id_base'] : $prepared['id']; return array( 'self' => array( 'href' => rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $prepared['id'] ) ), ), 'collection' => array( 'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ), ), 'about' => array( 'href' => rest_url( sprintf( 'wp/v2/widget-types/%s', $id_base ) ), 'embeddable' => true, ), 'https://api.w.org/sidebar' => array( 'href' => rest_url( sprintf( 'wp/v2/sidebars/%s/', $prepared['sidebar'] ) ), ), ); } /* * Gets the list of collection params. * * @since 5.8.0 * * @return array[] / public function get_collection_params() { return array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), 'sidebar' => array( 'description' => __( 'The sidebar to return widgets for.' ), 'type' => 'string', ), ); } /* * Retrieves the widget's schema, conforming to JSON Schema. * * @since 5.8.0 * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->add_additional_fields_schema( $this->schema ); } $this->schema = array( '$schema' => 'http://json-schema.org/draft-04/schema#', 'title' => 'widget', 'type' => 'object', 'properties' => array( 'id' => array( 'description' => __( 'Unique identifier for the widget.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), ), 'id_base' => array( 'description' => __( 'The type of the widget. Corresponds to ID in widget-types endpoint.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), ), 'sidebar' => array( 'description' => __( 'The sidebar the widget belongs to.' ), 'type' => 'string', 'default' => 'wp_inactive_widgets', 'required' => true, 'context' => array( 'view', 'edit', 'embed' ), ), 'rendered' => array( 'description' => __( 'HTML representation of the widget.' ), 'type' => 'string', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'rendered_form' => array( 'description' => __( 'HTML representation of the widget admin form.' ), 'type' => 'string', 'context' => array( 'edit' ), 'readonly' => true, ), 'instance' => array( 'description' => __( 'Instance settings of the widget, if supported.' ), 'type' => 'object', 'context' => array( 'edit' ), 'default' => null, 'properties' => array( 'encoded' => array( 'description' => __( 'Base64 encoded representation of the instance settings.' ), 'type' => 'string', 'context' => array( 'edit' ), ), 'hash' => array( 'description' => __( 'Cryptographic hash of the instance settings.' ), 'type' => 'string', 'context' => array( 'edit' ), ), 'raw' => array( 'description' => __( 'Unencoded instance settings, if supported.' ), 'type' => 'object', 'context' => array( 'edit' ), ), ), ), 'form_data' => array( 'description' => __( 'URL-encoded form data from the widget admin form. Used to update a widget that does not support instance. Write only.' ), 'type' => 'string', 'context' => array(), 'arg_options' => array( 'sanitize_callback' => static function ( $form_data ) { $array = array(); wp_parse_str( $form_data, $array ); return $array; }, ), ), ), ); return $this->add_additional_fields_schema( $this->schema ); } } Back

Edit File : class-wp-rest-widgets-controller.php | Size : 26.26 KB

<?php
/**
 * REST API: WP_REST_Widgets_Controller class
 *
 * @package WordPress
 * @subpackage REST_API
 * @since 5.8.0
 */

/**
 * Core class to access widgets via the REST API.
 *
 * @since 5.8.0
 *
 * @see WP_REST_Controller
 */
class WP_REST_Widgets_Controller extends WP_REST_Controller {

/**
	 * Tracks whether {@see retrieve_widgets()} has been called in the current request.
	 *
	 * @since 5.9.0
	 * @var bool
	 */
	protected $widgets_retrieved = false;

/**
	 * Whether the controller supports batching.
	 *
	 * @since 5.9.0
	 * @var array
	 */
	protected $allow_batch = array( 'v1' => true );

/**
	 * Widgets controller constructor.
	 *
	 * @since 5.8.0
	 */
	public function __construct() {
		$this->namespace = 'wp/v2';
		$this->rest_base = 'widgets';
	}

/**
	 * Registers the widget routes for the controller.
	 *
	 * @since 5.8.0
	 */
	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' ),
					'args'                => $this->get_collection_params(),
				),
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'create_item' ),
					'permission_callback' => array( $this, 'create_item_permissions_check' ),
					'args'                => $this->get_endpoint_args_for_item_schema(),
				),
				'allow_batch' => $this->allow_batch,
				'schema'      => array( $this, 'get_public_item_schema' ),
			)
		);

register_rest_route(
			$this->namespace,
			$this->rest_base . '/(?P<id>[\w\-]+)',
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_item' ),
					'permission_callback' => array( $this, 'get_item_permissions_check' ),
					'args'                => array(
						'context' => $this->get_context_param( array( 'default' => 'view' ) ),
					),
				),
				array(
					'methods'             => WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_item' ),
					'permission_callback' => array( $this, 'update_item_permissions_check' ),
					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
				),
				array(
					'methods'             => WP_REST_Server::DELETABLE,
					'callback'            => array( $this, 'delete_item' ),
					'permission_callback' => array( $this, 'delete_item_permissions_check' ),
					'args'                => array(
						'force' => array(
							'description' => __( 'Whether to force removal of the widget, or move it to the inactive sidebar.' ),
							'type'        => 'boolean',
						),
					),
				),
				'allow_batch' => $this->allow_batch,
				'schema'      => array( $this, 'get_public_item_schema' ),
			)
		);
	}

/**
	 * Checks if a given request has access to get widgets.
	 *
	 * @since 5.8.0
	 *
	 * @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 ) {
		$this->retrieve_widgets();
		if ( isset( $request['sidebar'] ) && $this->check_read_sidebar_permission( $request['sidebar'] ) ) {
			return true;
		}

foreach ( wp_get_sidebars_widgets() as $sidebar_id => $widget_ids ) {
			if ( $this->check_read_sidebar_permission( $sidebar_id ) ) {
				return true;
			}
		}

return $this->permissions_check( $request );
	}

/**
	 * Retrieves a collection of widgets.
	 *
	 * @since 5.8.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response Response object.
	 */
	public function get_items( $request ) {
		if ( $request->is_method( 'HEAD' ) ) {
			// Return early as this handler doesn't add any response headers.
			return new WP_REST_Response( array() );
		}

$this->retrieve_widgets();

$prepared          = array();
		$permissions_check = $this->permissions_check( $request );

foreach ( wp_get_sidebars_widgets() as $sidebar_id => $widget_ids ) {
			if ( isset( $request['sidebar'] ) && $sidebar_id !== $request['sidebar'] ) {
				continue;
			}

if ( is_wp_error( $permissions_check ) && ! $this->check_read_sidebar_permission( $sidebar_id ) ) {
				continue;
			}

foreach ( $widget_ids as $widget_id ) {
				$response = $this->prepare_item_for_response( compact( 'sidebar_id', 'widget_id' ), $request );

if ( ! is_wp_error( $response ) ) {
					$prepared[] = $this->prepare_response_for_collection( $response );
				}
			}
		}

return new WP_REST_Response( $prepared );
	}

/**
	 * Checks if a given request has access to get a widget.
	 *
	 * @since 5.8.0
	 *
	 * @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_item_permissions_check( $request ) {
		$this->retrieve_widgets();

$widget_id  = $request['id'];
		$sidebar_id = wp_find_widgets_sidebar( $widget_id );

if ( $sidebar_id && $this->check_read_sidebar_permission( $sidebar_id ) ) {
			return true;
		}

return $this->permissions_check( $request );
	}

/**
	 * Checks if a sidebar can be read publicly.
	 *
	 * @since 5.9.0
	 *
	 * @param string $sidebar_id The sidebar ID.
	 * @return bool Whether the sidebar can be read.
	 */
	protected function check_read_sidebar_permission( $sidebar_id ) {
		$sidebar = wp_get_sidebar( $sidebar_id );

return ! empty( $sidebar['show_in_rest'] );
	}

/**
	 * Gets an individual widget.
	 *
	 * @since 5.8.0
	 *
	 * @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 ) {
		$this->retrieve_widgets();

$widget_id  = $request['id'];
		$sidebar_id = wp_find_widgets_sidebar( $widget_id );

if ( is_null( $sidebar_id ) ) {
			return new WP_Error(
				'rest_widget_not_found',
				__( 'No widget was found with that id.' ),
				array( 'status' => 404 )
			);
		}

return $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request );
	}

/**
	 * Checks if a given request has access to create widgets.
	 *
	 * @since 5.8.0
	 *
	 * @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 create_item_permissions_check( $request ) {
		return $this->permissions_check( $request );
	}

/**
	 * Creates a widget.
	 *
	 * @since 5.8.0
	 *
	 * @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 create_item( $request ) {
		$sidebar_id = $request['sidebar'];

$widget_id = $this->save_widget( $request, $sidebar_id );

if ( is_wp_error( $widget_id ) ) {
			return $widget_id;
		}

wp_assign_widget_to_sidebar( $widget_id, $sidebar_id );

$request['context'] = 'edit';

$response = $this->prepare_item_for_response( compact( 'sidebar_id', 'widget_id' ), $request );

if ( is_wp_error( $response ) ) {
			return $response;
		}

$response->set_status( 201 );

return $response;
	}

/**
	 * Checks if a given request has access to update widgets.
	 *
	 * @since 5.8.0
	 *
	 * @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 update_item_permissions_check( $request ) {
		return $this->permissions_check( $request );
	}

/**
	 * Updates an existing widget.
	 *
	 * @since 5.8.0
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 *
	 * @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 update_item( $request ) {
		global $wp_widget_factory;

/*
		 * retrieve_widgets() contains logic to move "hidden" or "lost" widgets to the
		 * wp_inactive_widgets sidebar based on the contents of the $sidebars_widgets global.
		 *
		 * When batch requests are processed, this global is not properly updated by previous
		 * calls, resulting in widgets incorrectly being moved to the wp_inactive_widgets
		 * sidebar.
		 *
		 * See https://core.trac.wordpress.org/ticket/53657.
		 */
		wp_get_sidebars_widgets();
		$this->retrieve_widgets();

$widget_id  = $request['id'];
		$sidebar_id = wp_find_widgets_sidebar( $widget_id );

// Allow sidebar to be unset or missing when widget is not a WP_Widget.
		$parsed_id     = wp_parse_widget_id( $widget_id );
		$widget_object = $wp_widget_factory->get_widget_object( $parsed_id['id_base'] );
		if ( is_null( $sidebar_id ) && $widget_object ) {
			return new WP_Error(
				'rest_widget_not_found',
				__( 'No widget was found with that id.' ),
				array( 'status' => 404 )
			);
		}

if (
			$request->has_param( 'instance' ) ||
			$request->has_param( 'form_data' )
		) {
			$maybe_error = $this->save_widget( $request, $sidebar_id );
			if ( is_wp_error( $maybe_error ) ) {
				return $maybe_error;
			}
		}

if ( $request->has_param( 'sidebar' ) ) {
			if ( $sidebar_id !== $request['sidebar'] ) {
				$sidebar_id = $request['sidebar'];
				wp_assign_widget_to_sidebar( $widget_id, $sidebar_id );
			}
		}

$request['context'] = 'edit';

return $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request );
	}

/**
	 * Checks if a given request has access to delete widgets.
	 *
	 * @since 5.8.0
	 *
	 * @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 delete_item_permissions_check( $request ) {
		return $this->permissions_check( $request );
	}

/**
	 * Deletes a widget.
	 *
	 * @since 5.8.0
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 * @global array             $wp_registered_widget_updates The registered widget update functions.
	 *
	 * @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 delete_item( $request ) {
		global $wp_widget_factory, $wp_registered_widget_updates;

$widget_id  = $request['id'];
		$sidebar_id = wp_find_widgets_sidebar( $widget_id );

if ( is_null( $sidebar_id ) ) {
			return new WP_Error(
				'rest_widget_not_found',
				__( 'No widget was found with that id.' ),
				array( 'status' => 404 )
			);
		}

$request['context'] = 'edit';

if ( $request['force'] ) {
			$response = $this->prepare_item_for_response( compact( 'widget_id', 'sidebar_id' ), $request );

$parsed_id = wp_parse_widget_id( $widget_id );
			$id_base   = $parsed_id['id_base'];

$original_post    = $_POST;
			$original_request = $_REQUEST;

$_POST    = array(
				'sidebar'         => $sidebar_id,
				"widget-$id_base" => array(),
				'the-widget-id'   => $widget_id,
				'delete_widget'   => '1',
			);
			$_REQUEST = $_POST;

/** This action is documented in wp-admin/widgets-form.php */
			do_action( 'delete_widget', $widget_id, $sidebar_id, $id_base );

$callback = $wp_registered_widget_updates[ $id_base ]['callback'];
			$params   = $wp_registered_widget_updates[ $id_base ]['params'];

if ( is_callable( $callback ) ) {
				ob_start();
				call_user_func_array( $callback, $params );
				ob_end_clean();
			}

$_POST    = $original_post;
			$_REQUEST = $original_request;

$widget_object = $wp_widget_factory->get_widget_object( $id_base );

if ( $widget_object ) {
				/*
				 * WP_Widget sets `updated = true` after an update to prevent more than one widget
				 * from being saved per request. This isn't what we want in the REST API, though,
				 * as we support batch requests.
				 */
				$widget_object->updated = false;
			}

wp_assign_widget_to_sidebar( $widget_id, '' );

$response->set_data(
				array(
					'deleted'  => true,
					'previous' => $response->get_data(),
				)
			);
		} else {
			wp_assign_widget_to_sidebar( $widget_id, 'wp_inactive_widgets' );

$response = $this->prepare_item_for_response(
				array(
					'sidebar_id' => 'wp_inactive_widgets',
					'widget_id'  => $widget_id,
				),
				$request
			);
		}

/**
		 * Fires after a widget is deleted via the REST API.
		 *
		 * @since 5.8.0
		 *
		 * @param string                    $widget_id  ID of the widget marked for deletion.
		 * @param string                    $sidebar_id ID of the sidebar the widget was deleted from.
		 * @param WP_REST_Response|WP_Error $response   The response data, or WP_Error object on failure.
		 * @param WP_REST_Request           $request    The request sent to the API.
		 */
		do_action( 'rest_delete_widget', $widget_id, $sidebar_id, $response, $request );

return $response;
	}

/**
	 * Performs a permissions check for managing widgets.
	 *
	 * @since 5.8.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error
	 */
	protected function permissions_check( $request ) {
		if ( ! current_user_can( 'edit_theme_options' ) ) {
			return new WP_Error(
				'rest_cannot_manage_widgets',
				__( 'Sorry, you are not allowed to manage widgets on this site.' ),
				array(
					'status' => rest_authorization_required_code(),
				)
			);
		}

return true;
	}

/**
	 * Looks for "lost" widgets once per request.
	 *
	 * @since 5.9.0
	 *
	 * @see retrieve_widgets()
	 */
	protected function retrieve_widgets() {
		if ( ! $this->widgets_retrieved ) {
			retrieve_widgets();
			$this->widgets_retrieved = true;
		}
	}

/**
	 * Saves the widget in the request object.
	 *
	 * @since 5.8.0
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 * @global array             $wp_registered_widget_updates The registered widget update functions.
	 *
	 * @param WP_REST_Request $request    Full details about the request.
	 * @param string          $sidebar_id ID of the sidebar the widget belongs to.
	 * @return string|WP_Error The saved widget ID.
	 */
	protected function save_widget( $request, $sidebar_id ) {
		global $wp_widget_factory, $wp_registered_widget_updates;

require_once ABSPATH . 'wp-admin/includes/widgets.php'; // For next_widget_id_number().

if ( isset( $request['id'] ) ) {
			// Saving an existing widget.
			$id            = $request['id'];
			$parsed_id     = wp_parse_widget_id( $id );
			$id_base       = $parsed_id['id_base'];
			$number        = isset( $parsed_id['number'] ) ? $parsed_id['number'] : null;
			$widget_object = $wp_widget_factory->get_widget_object( $id_base );
			$creating      = false;
		} elseif ( $request['id_base'] ) {
			// Saving a new widget.
			$id_base       = $request['id_base'];
			$widget_object = $wp_widget_factory->get_widget_object( $id_base );
			$number        = $widget_object ? next_widget_id_number( $id_base ) : null;
			$id            = $widget_object ? $id_base . '-' . $number : $id_base;
			$creating      = true;
		} else {
			return new WP_Error(
				'rest_invalid_widget',
				__( 'Widget type (id_base) is required.' ),
				array( 'status' => 400 )
			);
		}

if ( ! isset( $wp_registered_widget_updates[ $id_base ] ) ) {
			return new WP_Error(
				'rest_invalid_widget',
				__( 'The provided widget type (id_base) cannot be updated.' ),
				array( 'status' => 400 )
			);
		}

if ( isset( $request['instance'] ) ) {
			if ( ! $widget_object ) {
				return new WP_Error(
					'rest_invalid_widget',
					__( 'Cannot set instance on a widget that does not extend WP_Widget.' ),
					array( 'status' => 400 )
				);
			}

if ( isset( $request['instance']['raw'] ) ) {
				if ( empty( $widget_object->widget_options['show_instance_in_rest'] ) ) {
					return new WP_Error(
						'rest_invalid_widget',
						__( 'Widget type does not support raw instances.' ),
						array( 'status' => 400 )
					);
				}
				$instance = $request['instance']['raw'];
			} elseif ( isset( $request['instance']['encoded'], $request['instance']['hash'] ) ) {
				$serialized_instance = base64_decode( $request['instance']['encoded'] );
				if ( ! hash_equals( wp_hash( $serialized_instance ), $request['instance']['hash'] ) ) {
					return new WP_Error(
						'rest_invalid_widget',
						__( 'The provided instance is malformed.' ),
						array( 'status' => 400 )
					);
				}
				$instance = unserialize( $serialized_instance );
			} else {
				return new WP_Error(
					'rest_invalid_widget',
					__( 'The provided instance is invalid. Must contain raw OR encoded and hash.' ),
					array( 'status' => 400 )
				);
			}

$form_data = array(
				"widget-$id_base" => array(
					$number => $instance,
				),
				'sidebar'         => $sidebar_id,
			);
		} elseif ( isset( $request['form_data'] ) ) {
			$form_data = $request['form_data'];
		} else {
			$form_data = array();
		}

$original_post    = $_POST;
		$original_request = $_REQUEST;

foreach ( $form_data as $key => $value ) {
			$slashed_value    = wp_slash( $value );
			$_POST[ $key ]    = $slashed_value;
			$_REQUEST[ $key ] = $slashed_value;
		}

$callback = $wp_registered_widget_updates[ $id_base ]['callback'];
		$params   = $wp_registered_widget_updates[ $id_base ]['params'];

if ( is_callable( $callback ) ) {
			ob_start();
			call_user_func_array( $callback, $params );
			ob_end_clean();
		}

$_POST    = $original_post;
		$_REQUEST = $original_request;

if ( $widget_object ) {
			// Register any multi-widget that the update callback just created.
			$widget_object->_set( $number );
			$widget_object->_register_one( $number );

/*
			 * WP_Widget sets `updated = true` after an update to prevent more than one widget
			 * from being saved per request. This isn't what we want in the REST API, though,
			 * as we support batch requests.
			 */
			$widget_object->updated = false;
		}

/**
		 * Fires after a widget is created or updated via the REST API.
		 *
		 * @since 5.8.0
		 *
		 * @param string          $id         ID of the widget being saved.
		 * @param string          $sidebar_id ID of the sidebar containing the widget being saved.
		 * @param WP_REST_Request $request    Request object.
		 * @param bool            $creating   True when creating a widget, false when updating.
		 */
		do_action( 'rest_after_save_widget', $id, $sidebar_id, $request, $creating );

return $id;
	}

/**
	 * Prepares the widget for the REST response.
	 *
	 * @since 5.8.0
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 * @global array             $wp_registered_widgets The registered widgets.
	 *
	 * @param array           $item    An array containing a widget_id and sidebar_id.
	 * @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 ) {
		global $wp_widget_factory, $wp_registered_widgets;

$widget_id  = $item['widget_id'];
		$sidebar_id = $item['sidebar_id'];

if ( ! isset( $wp_registered_widgets[ $widget_id ] ) ) {
			return new WP_Error(
				'rest_invalid_widget',
				__( 'The requested widget is invalid.' ),
				array( 'status' => 500 )
			);
		}

$widget = $wp_registered_widgets[ $widget_id ];
		// Don't prepare the response body for HEAD requests.
		if ( $request->is_method( 'HEAD' ) ) {
			/** This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php */
			return apply_filters( 'rest_prepare_widget', new WP_REST_Response( array() ), $widget, $request );
		}

$parsed_id = wp_parse_widget_id( $widget_id );
		$fields    = $this->get_fields_for_response( $request );

$prepared = array(
			'id'            => $widget_id,
			'id_base'       => $parsed_id['id_base'],
			'sidebar'       => $sidebar_id,
			'rendered'      => '',
			'rendered_form' => null,
			'instance'      => null,
		);

if (
			rest_is_field_included( 'rendered', $fields ) &&
			'wp_inactive_widgets' !== $sidebar_id
		) {
			$prepared['rendered'] = trim( wp_render_widget( $widget_id, $sidebar_id ) );
		}

if ( rest_is_field_included( 'rendered_form', $fields ) ) {
			$rendered_form = wp_render_widget_control( $widget_id );
			if ( ! is_null( $rendered_form ) ) {
				$prepared['rendered_form'] = trim( $rendered_form );
			}
		}

if ( rest_is_field_included( 'instance', $fields ) ) {
			$widget_object = $wp_widget_factory->get_widget_object( $parsed_id['id_base'] );
			if ( $widget_object && isset( $parsed_id['number'] ) ) {
				$all_instances                   = $widget_object->get_settings();
				$instance                        = $all_instances[ $parsed_id['number'] ];
				$serialized_instance             = serialize( $instance );
				$prepared['instance']['encoded'] = base64_encode( $serialized_instance );
				$prepared['instance']['hash']    = wp_hash( $serialized_instance );

if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) {
					// Use new stdClass so that JSON result is {} and not [].
					$prepared['instance']['raw'] = empty( $instance ) ? new stdClass() : $instance;
				}
			}
		}

$context  = ! empty( $request['context'] ) ? $request['context'] : 'view';
		$prepared = $this->add_additional_fields_to_object( $prepared, $request );
		$prepared = $this->filter_response_by_context( $prepared, $context );

$response = rest_ensure_response( $prepared );

if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
			$response->add_links( $this->prepare_links( $prepared ) );
		}

/**
		 * Filters the REST API response for a widget.
		 *
		 * @since 5.8.0
		 *
		 * @param WP_REST_Response|WP_Error $response The response object, or WP_Error object on failure.
		 * @param array                     $widget   The registered widget data.
		 * @param WP_REST_Request           $request  Request used to generate the response.
		 */
		return apply_filters( 'rest_prepare_widget', $response, $widget, $request );
	}

/**
	 * Prepares links for the widget.
	 *
	 * @since 5.8.0
	 *
	 * @param array $prepared Widget.
	 * @return array Links for the given widget.
	 */
	protected function prepare_links( $prepared ) {
		$id_base = ! empty( $prepared['id_base'] ) ? $prepared['id_base'] : $prepared['id'];

return array(
			'self'                      => array(
				'href' => rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $prepared['id'] ) ),
			),
			'collection'                => array(
				'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
			),
			'about'                     => array(
				'href'       => rest_url( sprintf( 'wp/v2/widget-types/%s', $id_base ) ),
				'embeddable' => true,
			),
			'https://api.w.org/sidebar' => array(
				'href' => rest_url( sprintf( 'wp/v2/sidebars/%s/', $prepared['sidebar'] ) ),
			),
		);
	}

/**
	 * Gets the list of collection params.
	 *
	 * @since 5.8.0
	 *
	 * @return array[]
	 */
	public function get_collection_params() {
		return array(
			'context' => $this->get_context_param( array( 'default' => 'view' ) ),
			'sidebar' => array(
				'description' => __( 'The sidebar to return widgets for.' ),
				'type'        => 'string',
			),
		);
	}

/**
	 * Retrieves the widget's schema, conforming to JSON Schema.
	 *
	 * @since 5.8.0
	 *
	 * @return array Item schema data.
	 */
	public function get_item_schema() {
		if ( $this->schema ) {
			return $this->add_additional_fields_schema( $this->schema );
		}

$this->schema = array(
			'$schema'    => 'http://json-schema.org/draft-04/schema#',
			'title'      => 'widget',
			'type'       => 'object',
			'properties' => array(
				'id'            => array(
					'description' => __( 'Unique identifier for the widget.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit', 'embed' ),
				),
				'id_base'       => array(
					'description' => __( 'The type of the widget. Corresponds to ID in widget-types endpoint.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit', 'embed' ),
				),
				'sidebar'       => array(
					'description' => __( 'The sidebar the widget belongs to.' ),
					'type'        => 'string',
					'default'     => 'wp_inactive_widgets',
					'required'    => true,
					'context'     => array( 'view', 'edit', 'embed' ),
				),
				'rendered'      => array(
					'description' => __( 'HTML representation of the widget.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit', 'embed' ),
					'readonly'    => true,
				),
				'rendered_form' => array(
					'description' => __( 'HTML representation of the widget admin form.' ),
					'type'        => 'string',
					'context'     => array( 'edit' ),
					'readonly'    => true,
				),
				'instance'      => array(
					'description' => __( 'Instance settings of the widget, if supported.' ),
					'type'        => 'object',
					'context'     => array( 'edit' ),
					'default'     => null,
					'properties'  => array(
						'encoded' => array(
							'description' => __( 'Base64 encoded representation of the instance settings.' ),
							'type'        => 'string',
							'context'     => array( 'edit' ),
						),
						'hash'    => array(
							'description' => __( 'Cryptographic hash of the instance settings.' ),
							'type'        => 'string',
							'context'     => array( 'edit' ),
						),
						'raw'     => array(
							'description' => __( 'Unencoded instance settings, if supported.' ),
							'type'        => 'object',
							'context'     => array( 'edit' ),
						),
					),
				),
				'form_data'     => array(
					'description' => __( 'URL-encoded form data from the widget admin form. Used to update a widget that does not support instance. Write only.' ),
					'type'        => 'string',
					'context'     => array(),
					'arg_options' => array(
						'sanitize_callback' => static function ( $form_data ) {
							$array = array();
							wp_parse_str( $form_data, $array );
							return $array;
						},
					),
				),
			),
		);

return $this->add_additional_fields_schema( $this->schema );
	}
}

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