/** * REST API: WP_REST_Widget_Types_Controller class * * @package WordPress * @subpackage REST_API * @since 5.8.0 */ /** * Core class to access widget types via the REST API. * * @since 5.8.0 * * @see WP_REST_Controller */ class WP_REST_Widget_Types_Controller extends WP_REST_Controller { /** * Constructor. * * @since 5.8.0 */ public function __construct() { $this->namespace = 'wp/v2'; $this->rest_base = 'widget-types'; } /** * Registers the widget type routes. * * @since 5.8.0 * * @see register_rest_route() */ 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(), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P[a-zA-Z0-9_-]+)', array( 'args' => array( 'id' => array( 'description' => __( 'The widget type id.' ), 'type' => 'string', ), ), array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'get_item' ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'args' => $this->get_collection_params(), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P[a-zA-Z0-9_-]+)/encode', array( 'args' => array( 'id' => array( 'description' => __( 'The widget type id.' ), 'type' => 'string', 'required' => true, ), 'instance' => array( 'description' => __( 'Current instance settings of the widget.' ), 'type' => 'object', ), 'form_data' => array( 'description' => __( 'Serialized widget form data to encode into instance settings.' ), 'type' => 'string', 'sanitize_callback' => function( $string ) { $array = array(); wp_parse_str( $string, $array ); return $array; }, ), ), array( 'methods' => WP_REST_Server::CREATABLE, 'permission_callback' => array( $this, 'get_item_permissions_check' ), 'callback' => array( $this, 'encode_form_data' ), ), ) ); } /** * Checks whether a given request has permission to read widget types. * * @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 ) { return $this->check_read_permission(); } /** * Retrieves the list of all widget types. * * @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_items( $request ) { $data = array(); foreach ( $this->get_widgets() as $widget ) { $widget_type = $this->prepare_item_for_response( $widget, $request ); $data[] = $this->prepare_response_for_collection( $widget_type ); } return rest_ensure_response( $data ); } /** * Checks if a given request has access to read a widget type. * * @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 for the item, WP_Error object otherwise. */ public function get_item_permissions_check( $request ) { $check = $this->check_read_permission(); if ( is_wp_error( $check ) ) { return $check; } $widget_id = $request['id']; $widget_type = $this->get_widget( $widget_id ); if ( is_wp_error( $widget_type ) ) { return $widget_type; } return true; } /** * Checks whether the user can read widget types. * * @since 5.8.0 * * @return true|WP_Error True if the widget type is visible, WP_Error otherwise. */ protected function check_read_permission() { 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; } /** * Gets the details about the requested widget. * * @since 5.8.0 * * @param string $id The widget type id. * @return array|WP_Error The array of widget data if the name is valid, WP_Error otherwise. */ public function get_widget( $id ) { foreach ( $this->get_widgets() as $widget ) { if ( $id === $widget['id'] ) { return $widget; } } return new WP_Error( 'rest_widget_type_invalid', __( 'Invalid widget type.' ), array( 'status' => 404 ) ); } /** * Normalize array of widgets. * * @since 5.8.0 * * @global WP_Widget_Factory $wp_widget_factory * @global array $wp_registered_widgets The list of registered widgets. * * @return array Array of widgets. */ protected function get_widgets() { global $wp_widget_factory, $wp_registered_widgets; $widgets = array(); foreach ( $wp_registered_widgets as $widget ) { $parsed_id = wp_parse_widget_id( $widget['id'] ); $widget_object = $wp_widget_factory->get_widget_object( $parsed_id['id_base'] ); $widget['id'] = $parsed_id['id_base']; $widget['is_multi'] = (bool) $widget_object; if ( isset( $widget['name'] ) ) { $widget['name'] = html_entity_decode( $widget['name'], ENT_QUOTES, get_bloginfo( 'charset' ) ); } if ( isset( $widget['description'] ) ) { $widget['description'] = html_entity_decode( $widget['description'], ENT_QUOTES, get_bloginfo( 'charset' ) ); } unset( $widget['callback'] ); $classname = ''; foreach ( (array) $widget['classname'] as $cn ) { if ( is_string( $cn ) ) { $classname .= '_' . $cn; } elseif ( is_object( $cn ) ) { $classname .= '_' . get_class( $cn ); } } $widget['classname'] = ltrim( $classname, '_' ); $widgets[ $widget['id'] ] = $widget; } return $widgets; } /** * Retrieves a single widget type from the collection. * * @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 ) { $widget_id = $request['id']; $widget_type = $this->get_widget( $widget_id ); if ( is_wp_error( $widget_type ) ) { return $widget_type; } $data = $this->prepare_item_for_response( $widget_type, $request ); return rest_ensure_response( $data ); } /** * Prepares a widget type object for serialization. * * @since 5.8.0 * * @param array $widget_type Widget type data. * @param WP_REST_Request $request Full details about the request. * @return WP_REST_Response Widget type data. */ public function prepare_item_for_response( $widget_type, $request ) { $fields = $this->get_fields_for_response( $request ); $data = array( 'id' => $widget_type['id'], ); $schema = $this->get_item_schema(); $extra_fields = array( 'name', 'description', 'is_multi', 'classname', 'widget_class', 'option_name', 'customize_selective_refresh', ); foreach ( $extra_fields as $extra_field ) { if ( ! rest_is_field_included( $extra_field, $fields ) ) { continue; } if ( isset( $widget_type[ $extra_field ] ) ) { $field = $widget_type[ $extra_field ]; } elseif ( array_key_exists( 'default', $schema['properties'][ $extra_field ] ) ) { $field = $schema['properties'][ $extra_field ]['default']; } else { $field = ''; } $data[ $extra_field ] = rest_sanitize_value_from_schema( $field, $schema['properties'][ $extra_field ] ); } $context = ! empty( $request['context'] ) ? $request['context'] : 'view'; $data = $this->add_additional_fields_to_object( $data, $request ); $data = $this->filter_response_by_context( $data, $context ); $response = rest_ensure_response( $data ); $response->add_links( $this->prepare_links( $widget_type ) ); /** * Filters the REST API response for a widget type. * * @since 5.8.0 * * @param WP_REST_Response $response The response object. * @param array $widget_type The array of widget data. * @param WP_REST_Request $request The request object. */ return apply_filters( 'rest_prepare_widget_type', $response, $widget_type, $request ); } /** * Prepares links for the widget type. * * @since 5.8.0 * * @param array $widget_type Widget type data. * @return array Links for the given widget type. */ protected function prepare_links( $widget_type ) { return array( 'collection' => array( 'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ), ), 'self' => array( 'href' => rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $widget_type['id'] ) ), ), ); } /** * Retrieves the widget type'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 ); } $schema = array( '$schema' => 'http://json-schema.org/draft-04/schema#', 'title' => 'widget-type', 'type' => 'object', 'properties' => array( 'id' => array( 'description' => __( 'Unique slug identifying the widget type.' ), 'type' => 'string', 'context' => array( 'embed', 'view', 'edit' ), 'readonly' => true, ), 'name' => array( 'description' => __( 'Human-readable name identifying the widget type.' ), 'type' => 'string', 'default' => '', 'context' => array( 'embed', 'view', 'edit' ), 'readonly' => true, ), 'description' => array( 'description' => __( 'Description of the widget.' ), 'type' => 'string', 'default' => '', 'context' => array( 'view', 'edit', 'embed' ), ), 'is_multi' => array( 'description' => __( 'Whether the widget supports multiple instances' ), 'type' => 'boolean', 'context' => array( 'view', 'edit', 'embed' ), 'readonly' => true, ), 'classname' => array( 'description' => __( 'Class name' ), 'type' => 'string', 'default' => '', 'context' => array( 'embed', 'view', 'edit' ), 'readonly' => true, ), ), ); $this->schema = $schema; return $this->add_additional_fields_schema( $this->schema ); } /** * An RPC-style endpoint which can be used by clients to turn user input in * a widget admin form into an encoded instance object. * * Accepts: * * - id: A widget type ID. * - instance: A widget's encoded instance object. Optional. * - form_data: Form data from submitting a widget's admin form. Optional. * * Returns: * - instance: The encoded instance object after updating the widget with * the given form data. * - form: The widget's admin form after updating the widget with the * given form data. * * @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 encode_form_data( $request ) { global $wp_widget_factory; $id = $request['id']; $widget_object = $wp_widget_factory->get_widget_object( $id ); if ( ! $widget_object ) { return new WP_Error( 'rest_invalid_widget', __( 'Cannot preview a widget that does not extend WP_Widget.' ), array( 'status' => 400 ) ); } // Set the widget's number so that the id attributes in the HTML that we // return are predictable. if ( isset( $request['number'] ) && is_numeric( $request['number'] ) ) { $widget_object->_set( (int) $request['number'] ); } else { $widget_object->_set( -1 ); } if ( 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 { $instance = array(); } if ( isset( $request['form_data'][ "widget-$id" ] ) && is_array( $request['form_data'][ "widget-$id" ] ) ) { $new_instance = array_values( $request['form_data'][ "widget-$id" ] )[0]; $old_instance = $instance; $instance = $widget_object->update( $new_instance, $old_instance ); /** This filter is documented in wp-includes/class-wp-widget.php */ $instance = apply_filters( 'widget_update_callback', $instance, $new_instance, $old_instance, $widget_object ); } $serialized_instance = serialize( $instance ); $widget_key = $wp_widget_factory->get_widget_key( $id ); $response = array( 'form' => trim( $this->get_widget_form( $widget_object, $instance ) ), 'preview' => trim( $this->get_widget_preview( $widget_key, $instance ) ), 'instance' => array( 'encoded' => base64_encode( $serialized_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 []. $response['instance']['raw'] = empty( $instance ) ? new stdClass : $instance; } return rest_ensure_response( $response ); } /** * Returns the output of WP_Widget::widget() when called with the provided * instance. Used by encode_form_data() to preview a widget. * @since 5.8.0 * * @param string $widget The widget's PHP class name (see class-wp-widget.php). * @param array $instance Widget instance settings. * @return string */ private function get_widget_preview( $widget, $instance ) { ob_start(); the_widget( $widget, $instance ); return ob_get_clean(); } /** * Returns the output of WP_Widget::form() when called with the provided * instance. Used by encode_form_data() to preview a widget's form. * * @since 5.8.0 * * @param WP_Widget $widget_object Widget object to call widget() on. * @param array $instance Widget instance settings. * @return string */ private function get_widget_form( $widget_object, $instance ) { ob_start(); /** This filter is documented in wp-includes/class-wp-widget.php */ $instance = apply_filters( 'widget_form_callback', $instance, $widget_object ); if ( false !== $instance ) { $return = $widget_object->form( $instance ); /** This filter is documented in wp-includes/class-wp-widget.php */ do_action_ref_array( 'in_widget_form', array( &$widget_object, &$return, $instance ) ); } return ob_get_clean(); } /** * Retrieves the query params for collections. * * @since 5.8.0 * * @return array Collection parameters. */ public function get_collection_params() { return array( 'context' => $this->get_context_param( array( 'default' => 'view' ) ), ); } } 201808_11호 재중과협 뉴스레터 – 재중한인과학기술자협회

재중한인과학기술자협회

201808_11호 재중과협 뉴스레터

Posted on 2018-08-01 kseach@AdminPosted in 뉴스레터

재중한인과학기술자협회(KSEACH) NEWS Letter_1808_11호

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