on ) ) {
			return $icon;
		}

		$data = $this->prepare_item_for_response( $icon, $request );
		return rest_ensure_response( $data );
	}

	/**
	 * Retrieves a specific icon from the registry.
	 *
	 * @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.
	 *
	 * @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',
		);
		$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.
	 *
	 * @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' ),
				),
			),
		);

		$this->schema = $schema;

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

	/**
	 * Retrieves the query params for the icons collection.
	 *
	 * @return array Collection parameters.
	 */
	public function get_collection_params() {
		$query_params                       = parent::get_collection_params();
		$query_params['context']['default'] = 'view';
		return $query_params;
	}
}