post_as_wizard.php

<?php

/*
Plugin Name: WAFF Post As Wizard 
Author: Justin Petermann, Wilhem Arnoldy
Version: 2.1
Tags: post, wizard, metaboxes
Requires at least: 4 
Tested up to: 6.4.1
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Description: View post metaboxes as Wizard steps, handle required fields regarding roles, now compatible with gutenberg
*/

if ( !defined( 'ABSPATH' ) ) {
    exit;
}

if(!defined("IS_ADMIN"))
	define("IS_ADMIN",  is_admin());

if ( !is_login() && is_admin() && !function_exists('rwmb_meta') ) {
	wp_die('Error : please install Meta Box plugin.');
}

if ( !is_login() && is_admin() && !function_exists('mb_settings_page_load') ) {
	wp_die('Error : please install Meta Box Settings plugin.');
}

if (IS_ADMIN) {
	function run_post_as_wizard() {
		$current_path = dirname(__FILE__);
		require_once($current_path.'/post_as_wizard.inc.php');

		$paw = new post_as_wizard();
		add_action('admin_menu', array($paw, 'post_as_wizard_plugins_loaded'));

		// Add a page in settings
		add_filter( 'mb_settings_pages', array( $paw, 'add_setting_page' ) );
		add_filter( 'rwmb_meta_boxes',  array( $paw, 'add_custom_fields_to_setting_page' ) );
		
	}

	run_post_as_wizard();
}