✏️ Editing: class-uagb-rest-api.php Writable

<?php
/**
 * UAGB Rest API.
 *
 * @package UAGB
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

if ( ! class_exists( 'UAGB_Rest_API' ) ) {

/**
	 * Class UAGB_Rest_API.
	 */
	final class UAGB_Rest_API {

/**
		 * Member Variable
		 *
		 * @var instance
		 */
		private static $instance;

/**
		 *  Initiator
		 */
		public static function get_instance() {
			if ( ! isset( self::$instance ) ) {
				self::$instance = new self();
			}
			return self::$instance;
		}

/**
		 * Constructor
		 */
		public function __construct() {

// Activation hook.
			add_action( 'rest_api_init', array( $this, 'blocks_register_rest_fields' ) );
			add_action( 'init', array( $this, 'register_rest_orderby_fields' ) );
			add_filter( 'register_post_type_args', array( $this, 'add_cpts_to_api' ), 10, 2 );

// We have added this action here to support both the ways of post updations, Rest API & Normal.
			add_action( 'save_post', array( 'UAGB_Helper', 'delete_page_assets' ), 10, 1 );
			// Adding this action to delete post assets if the post is moved to trash.
			add_action( 'wp_trash_post', array( $this, 'delete_page_assets_on_trash' ) );
			global $wp_customize;
			if ( $wp_customize ) { // Check whether the $wp_customize is set.
				add_filter( 'render_block_data', array( $this, 'content_pre_render' ) ); // Add a inline style for block when it rendered in customizer.
				add_action( 'customize_save', array( $this, 'after_widget_save_action' ) ); // Update the assets on customizer save/publish.
			} else {
				add_action( 'rest_after_save_widget', array( $this, 'after_widget_save_action' ) ); // Update the assets on widget save.
			}

}

/**
		 * Function to delete post assets.
		 *
		 * @param int $post_id post_id of deleted post.
		 * @since 2.13.1
		 * @return void 
		 */
		public function delete_page_assets_on_trash( $post_id ) {
			
				$css_asset_info = UAGB_Scripts_Utils::get_asset_info( 'css', $post_id );
				$js_asset_info  = UAGB_Scripts_Utils::get_asset_info( 'js', $post_id );

$css_file_path = $css_asset_info['css'];
				$js_file_path  = $js_asset_info['js'];

if ( file_exists( $css_file_path ) ) {
				wp_delete_file( $css_file_path );
			}
			if ( file_exists( $js_file_path ) ) {
				wp_delete_file( $js_file_path );
			}
		}

/**
		 * Function to load assets for post/page in customizer before gutenberg rendering.
		 *
		 * @param array $block Block data.
		 *
		 * @since 2.0.13
		 *
		 * @return array New block data.
		 */
		public function content_pre_render( $block ) {
			$tab_styling_css  = '';
			$mob_styling_css  = '';
			$UAGB_Post_Assets = new UAGB_Post_Assets( get_the_ID() );

$assets = $UAGB_Post_Assets->get_block_css_and_js( $block );

$desktop_css = isset( $assets['css']['desktop'] ) ? $assets['css']['desktop'] : '';

if ( ! empty( $assets['css']['tablet'] ) ) {
				$tab_styling_css .= '@media only screen and (max-width: ' . UAGB_TABLET_BREAKPOINT . 'px) {';
				$tab_styling_css .= $assets['css']['tablet'];
				$tab_styling_css .= '}';
			}

if ( ! empty( $assets['css']['mobile'] ) ) {
				$mob_styling_css .= '@media only screen and (max-width: ' . UAGB_MOBILE_BREAKPOINT . 'px) {';
				$mob_styling_css .= $assets['css']['mobile'];
				$mob_styling_css .= '}';
			}

$block_css_style = $desktop_css . $tab_styling_css . $mob_styling_css;

if ( empty( $block_css_style ) || empty( $block['attrs'] ) || ! is_array( $block['attrs'] ) ) {
				return $block;
			}

// This line of code creates a new array named $font_family_attrs by searching through the keys of an existing array.
			$font_family_attrs = preg_grep( '/fontfamily/i', array_keys( $block['attrs'] ) );
			$link_tag_list     = '';

if ( ! empty( $font_family_attrs ) && is_array( $font_family_attrs ) ) {
				foreach ( $font_family_attrs as $attr ) {
					if ( ! empty( $block['attrs'][ $attr ] ) ) {
						// Get the font family value and construct the Google Fonts URL.
						$gfont_url = 'https://fonts.googleapis.com/css?family=' . urlencode( $block['attrs'][ $attr ] );
						// Create a link tag for the stylesheet with the constructed URL.
						$link_tag_list .= '<link rel="stylesheet" href="' . esc_url( $gfont_url ) . '" media="all">';
					}
				}
			}

$style = '<style class="uagb-widgets-style-renderer">' . $block_css_style . '</style>';
				$style = $style . $link_tag_list;

array_push( $block['innerContent'], $style );

return $block;
		}

/**
		 * This function updates the __uagb_asset_version when Widgets Editor is Updated.
		 *
		 * @since 2.0.0
		 */
		public function after_widget_save_action() {
			/* Update the asset version */
			update_option( '__uagb_asset_version', time() );
		}

/**
		 * Create API fields for additional info
		 *
		 * @since 0.0.1
		 */
		public function blocks_register_rest_fields() {
			$post_type = UAGB_Helper::get_post_types();

foreach ( $post_type as $key => $value ) {
				// Add featured image source.
				register_rest_field(
					$value['value'],
					'uagb_featured_image_src',
					array(
						'get_callback'    => array( $this, 'get_image_src' ),
						'update_callback' => null,
						'schema'          => null,
					)
				);

// Add author info.
				register_rest_field(
					$value['value'],
					'uagb_author_info',
					array(
						'get_callback'    => array( $this, 'get_author_info' ),
						'update_callback' => null,
						'schema'          => null,
					)
				);

// Add comment info.
				register_rest_field(
					$value['value'],
					'uagb_comment_info',
					array(
						'get_callback'    => array( $this, 'get_comment_info' ),
						'update_callback' => null,
						'schema'          => null,
					)
				);

// Add excerpt info.
				register_rest_field(
					$value['value'],
					'uagb_excerpt',
					array(
						'get_callback'    => array( $this, 'get_excerpt' ),
						'update_callback' => null,
						'schema'          => null,
					)
				);

}

register_rest_route(
				'spectra/v1',
				'all_taxonomy',
				array(
					array(
						'methods'             => 'GET',
						'callback'            => array( $this, 'get_related_taxonomy' ),
						'permission_callback' => array( $this, 'get_items_permissions_check' ),
						'args'                => array(),
					),
				)
			);

register_rest_route(
				'spectra/v1',
				'editor',
				array(
					array(
						'methods'             => 'GET',
						'callback'            => array( $this, 'uagb_initial_states' ),
						'permission_callback' => array( $this, 'get_items_permissions_check' ),
						'args'                => array(),
					),
				)
			);

register_rest_route(
				'spectra/v1',
				'check-custom-fields-support',
				array(
					array(
						'methods'             => 'GET',
						'callback'            => array( $this, 'check_custom_fields_support' ),
						'permission_callback' => array( $this, 'get_items_permissions_check' ),
						'args'                => $this->check_custom_fields_support_args(),
					),
				)
			);
		}

/**
		 * Get Initial States.
		 *
		 * @since 2.12.0
		 * @return array
		 */
		public function uagb_initial_states() {

$response = array_merge( 
				// For GBS initial states.
				$this->get_gbs_initial_states(),
				// For quick action sidebar.
				$this->get_quick_action_bar_initial_states()
			);

return $response;
		}

/**
		 * Get Quick Action Bar Initial States.
		 *
		 * @since 2.12.0
		 * @return array
		 */
		public function get_quick_action_bar_initial_states() {
			// Get value from DB for Quick Action Bar.
			$db_value                            = \UAGB_Admin_Helper::get_admin_settings_option( 'uag_enable_quick_action_sidebar' );
			$show_enable                         = ( empty( $db_value ) ) ? 'enabled' : $db_value;
			$spectra_enable_quick_action_sidebar = \UAGB_Admin_Helper::get_admin_settings_option( 'uag_enable_quick_action_sidebar', $show_enable );

$spectra_default_allowed_quick_sidebar_blocks = \UAGB_Admin_Helper::get_admin_settings_option(
				'uagb_quick_sidebar_allowed_blocks',
				array()
			);

if ( empty( $spectra_default_allowed_quick_sidebar_blocks ) ) {
				$spectra_default_allowed_quick_sidebar_blocks = array(
					'uagb/container',
					'uagb/advanced-heading',
					'uagb/image',
					'uagb/icon',
					'uagb/buttons',
					'uagb/info-box',
					'uagb/call-to-action',
				);
			}
			
			$initial_state = array(
				'uag_enable_quick_action_sidebar'   => $spectra_enable_quick_action_sidebar,
				'uagb_quick_sidebar_allowed_blocks' => $spectra_default_allowed_quick_sidebar_blocks,
			);

return $initial_state;
		}

/**
		 * Get GBS Initial States.
		 *
		 * @since 2.9.0
		 * @return array
		 */
		public function get_gbs_initial_states() {
			// check if GBS is enabled or not.
			if ( 'enabled' !== \UAGB_Admin_Helper::get_admin_settings_option( 'uag_enable_gbs_extension', 'enabled' ) ) {
				return array();
			}

$spectra_global_block_styles = get_option(
				'spectra_global_block_styles',
				array(
					array(
						'value' => '',
						'label' => __( 'None', 'ultimate-addons-for-gutenberg' ),
					),
				) 
			);
			
			$spectra_gbs_google_fonts_editor = get_option(
				'spectra_gbs_google_fonts_editor',
				array()
			);

if ( empty( $spectra_global_block_styles ) ) {
				$spectra_global_block_styles = array(
					array(
						'value' => '',
						'label' => __( 'None', 'ultimate-addons-for-gutenberg' ),
					),
				);
			}

$initial_state = array(
				'spectra_global_block_styles'     => $spectra_global_block_styles,
				'spectra_gbs_google_fonts_editor' => $spectra_gbs_google_fonts_editor,
			);

return $initial_state;
		}

/**
		 * Get all taxonomies.
		 *
		 * @since 1.11.0
		 * @access public
		 */
		public function get_related_taxonomy() {

$post_types = self::get_post_types();

$return_array = array();

foreach ( $post_types as $key => $value ) {
				$post_type = $value['value'];

$taxonomies = get_object_taxonomies( $post_type, 'objects' );
				$data       = array();

foreach ( $taxonomies as $tax_slug => $tax ) {
					if ( ! $tax->public || ! $tax->show_ui || ! $tax->show_in_rest ) {
						continue;
					}

$data[ $tax_slug ] = $tax;

$terms = get_terms( $tax_slug );

$related_tax = array();

if ( ! empty( $terms ) ) {
						foreach ( $terms as $t_index => $t_obj ) {
							$related_tax[] = array(
								'id'    => $t_obj->term_id,
								'name'  => $t_obj->name,
								'child' => get_term_children( $t_obj->term_id, $tax_slug ),
							);
						}
						$return_array[ $post_type ]['terms'][ $tax_slug ] = $related_tax;
					}
				}

$return_array[ $post_type ]['taxonomy'] = $data;

}

return apply_filters( 'uagb_post_loop_taxonomies', $return_array );
		}

/**
		 * Get Post Types.
		 *
		 * @since 1.11.0
		 * @access public
		 */
		public static function get_post_types() {

$post_types = get_post_types(
				array(
					'public'       => true,
					'show_in_rest' => true,
				),
				'objects'
			);

$options = array();

foreach ( $post_types as $post_type ) {

if ( 'attachment' === $post_type->name ) {
					continue;
				}

$options[] = array(
					'value' => $post_type->name,
					'label' => $post_type->label,
				);
			}

return apply_filters( 'uagb_loop_post_types', $options );
		}
		/**
		 * Check whether a given request has permission to read notes.
		 *
		 * @param  WP_REST_Request $request Full details about the request.
		 * @return WP_Error|boolean
		 */
		public function get_items_permissions_check( $request ) {

if ( ! current_user_can( 'edit_posts' ) ) {
				return new \WP_Error( 'uag_rest_cannot_view', __( 'Sorry, you cannot list resources.', 'ultimate-addons-for-gutenberg' ), array( 'status' => rest_authorization_required_code() ) );
			}

return true;
		}

/**
		 * Get featured image source for the rest field as per size
		 *
		 * @param object $object Post Object.
		 * @param string $field_name Field name.
		 * @param object $request Request Object.
		 * @since 0.0.1
		 */
		public function get_image_src( $object, $field_name, $request ) {
			$image_sizes = UAGB_Helper::get_image_sizes();

$featured_images = array();

if ( ! isset( $object['featured_media'] ) ) {
				return $featured_images;
			}

foreach ( $image_sizes as $key => $value ) {
				$size = $value['value'];

$featured_images[ $size ] = wp_get_attachment_image_src(
					$object['featured_media'],
					$size,
					false
				);
			}

return $featured_images;
		}

/**
		 * Get author info for the rest field
		 *
		 * @param object $object Post Object.
		 * @param string $field_name Field name.
		 * @param object $request Request Object.
		 * @since 0.0.1
		 */
		public function get_author_info( $object, $field_name, $request ) {

$author = ( isset( $object['author'] ) ) ? $object['author'] : '';

// Get the author name.
			$author_data['display_name'] = get_the_author_meta( 'display_name', $author );

// Get the author link.
			$author_data['author_link'] = get_author_posts_url( $author );

// Return the author data.
			return $author_data;
		}

/**
		 * Get comment info for the rest field
		 *
		 * @param object $object Post Object.
		 * @param string $field_name Field name.
		 * @param object $request Request Object.
		 * @since 0.0.1
		 */
		public function get_comment_info( $object, $field_name, $request ) {
			// Get the comments link.
			$comments_count = wp_count_comments( $object['id'] );
			return $comments_count->total_comments;
		}

/**
		 * Get excerpt for the rest field
		 *
		 * @param object $object Post Object.
		 * @param string $field_name Field name.
		 * @param object $request Request Object.
		 * @since 0.0.1
		 */
		public function get_excerpt( $object, $field_name, $request ) {
			$excerpt = wp_trim_words( get_the_excerpt( $object['id'] ) );
			if ( ! $excerpt ) {
				$excerpt = null;
			}
			return $excerpt;
		}

/**
		 * Create API Order By Fields
		 *
		 * @since 1.12.0
		 */
		public function register_rest_orderby_fields() {
			$post_type = UAGB_Helper::get_post_types();

foreach ( $post_type as $key => $type ) {
				add_filter( "rest_{$type['value']}_collection_params", array( $this, 'add_orderby' ), 10, 1 );
			}
		}

/**
		 * Adds Order By values to Rest API
		 *
		 * @param object $params Parameters.
		 * @since 1.12.0
		 */
		public function add_orderby( $params ) {

$params['orderby']['enum'][] = 'rand';
			$params['orderby']['enum'][] = 'menu_order';

return $params;
		}

/**
		 * Adds the Contect Form 7 Custom Post Type to REST.
		 *
		 * @param array  $args Array of arguments.
		 * @param string $post_type Post Type.
		 * @since 1.10.0
		 */
		public function add_cpts_to_api( $args, $post_type ) {
			if ( 'wpcf7_contact_form' !== $post_type || ! is_admin() ) {
				return $args; // Don't change anything for other post types.
			}

// Modify args only for wpcf7_contact_form.
			$args['show_in_rest'] = true;
			return $args;
		}

/**
		 * Supported arguments to check if the given post type supports custom fields.
		 *
		 * @since 2.13.1
		 * @return array The array of supported arguments.
		 */
		public function check_custom_fields_support_args() {
			$args = array();

$args['post_type'] = array(
				'type'              => 'string',
				'required'          => false,
				'sanitize_callback' => 'sanitize_text_field',
				'validate_callback' => function ( $value ) {
					// Allow empty value since required is false.
					if ( empty( $value ) ) {
						return true;
					}
					// Validate that it's a string.
					if ( ! is_string( $value ) ) {
						return new \WP_Error( 'invalid_type', __( 'Post type must be a string.', 'ultimate-addons-for-gutenberg' ) );
					}
					// Validate against registered post types.
					$post_types = get_post_types( array( 'public' => true ) );
					if ( ! in_array( $value, $post_types, true ) ) {
						return new \WP_Error( 'invalid_post_type', __( 'Invalid post type.', 'ultimate-addons-for-gutenberg' ) );
					}
					return true;
				},
			);

return $args;
		}

/**
		 * Checks if the given post type supports custom fields.
		 *
		 * @param WP_REST_Request $request All the details about the request.
		 * @since 2.13.1
		 * @return WP_REST_Response The response.
		 */
		public function check_custom_fields_support( $request ) {
			$post_type = $request->get_param( 'post_type' );

// If the post type was not passed, abandon ship.
			if ( empty( $post_type ) || ! is_string( $post_type ) ) {
				$response = new \WP_REST_Response(
					array(
						'success' => false,
					)
				);
				$response->set_status( 400 );
				return $response;
			}

// Sanitize the post type, and check if the post type supports custom fields.
			$post_type              = sanitize_text_field( $post_type );
			$supports_custom_fields = post_type_supports( $post_type, 'custom-fields' );

// Return the successful response, with whether or not custom fields is supported.
			$response = new \WP_REST_Response(
				array(
					'success'                => true,
					'supports_custom_fields' => $supports_custom_fields,
				)
			);
			$response->set_status( 200 );

return $response;
		}
	}

/**
	 *  Prepare if class 'UAGB_Rest_API' exist.
	 *  Kicking this off by calling 'get_instance()' method
	 */
	UAGB_Rest_API::get_instance();
}

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