Opal-Estate-Pro/inc/vendors/elementor/class-opalestate-elementor-extended.php

<?php
/**
 * Main Opalestate_Elementor_Extended Class
 *
 * The main class that initiates and runs the plugin.
 */

final class Opalestate_Elementor_Extended {
	/**
	 * Instance
	 *
	 * @access private
	 * @static
	 *
	 * @var Opalestate_Elementor_Extended The single instance of the class.
	 */
	private static $_instance = null;

	/**
	 * Instance
	 *
	 * Ensures only one instance of the class is loaded or can be loaded.
	 *
	 * @access public
	 * @static
	 *
	 * @return Opalestate_Elementor_Extended An instance of the class.
	 */
	public static function instance() {
		if ( is_null( self::$_instance ) ) {
			self::$_instance = new self();
		}

		return self::$_instance;
	}

	/**
	 * Constructor
	 *
	 * @access public
	 */
	public function __construct() {
		add_action( 'plugins_loaded', [ $this, 'init' ] );
	}

	/**
	 * Initialize the plugin
	 *
	 * Load the plugin only after Elementor (and other plugins) are loaded.
	 * Checks for basic plugin requirements, if one check fail don't continue,
	 * if all check have passed load the files required to run the plugin.
	 *
	 * Fired by `plugins_loaded` action hook.
	 *
	 * @access public
	 */
	public function init() {
		// Check if Elementor installed and activated.
		if ( ! did_action( 'elementor/loaded' ) ) {
			return;
		}

		add_action( 'elementor/elements/categories_registered', [ $this, 'add_widget_categories' ] );

		// Add Plugin actions.
		add_action( 'elementor/widgets/widgets_registered', [ $this, 'register_widgets' ] );
	}

	/**
	 * Add widget categories.
	 *
	 * @param object $elements_manager elements manager.
	 */
	public function add_widget_categories( $elements_manager ) {
		$elements_manager->add_category(
			'opalestate-pro',
			[
				'title' => esc_html__( 'Opal Estate', 'opalestate-pro' ),
				'icon'  => 'fa fa-plug',
			]
		);
	}

	/**
	 * Includes
	 */
	public function includes() {
		require OPALESTATE_PLUGIN_DIR . 'inc/vendors/elementor/class-opalestate-elementor-widget-base.php';
	}

	/**
	 * Init Widgets
	 *
	 * Include widgets files and register them
	 *
	 * @access public
	 */
	public function register_widgets() {
		$this->includes();

		$widget_paths = glob( OPALESTATE_PLUGIN_DIR . 'inc/vendors/elementor/widgets/*.php' );

		if ( $widget_paths ) {
			foreach ( $widget_paths as $path ) {
				require_once $path;
				$class_name = ucfirst( str_replace("-","_", basename( $path, '.php' ) ) ).'_Elementor_Widget'; 

				if( class_exists($class_name) ){
					\Elementor\Plugin::instance()->widgets_manager->register_widget_type( new $class_name() );
				}
			}
		}
	}
}

Opalestate_Elementor_Extended::instance();