Elementor Dynamic Tag: Visitor's First Name

add_action( 'elementor/dynamic_tags/register', function ( $dynamic_tags ) {
    if ( ! class_exists( '\Elementor\Core\DynamicTags\Tag' ) || ! class_exists( '\Elementor\Modules\DynamicTags\Module' ) ) {
        return;
    }

    if ( ! class_exists( 'WPIDE_Elementor_First_Name_Tag' ) ) {
        class WPIDE_Elementor_First_Name_Tag extends \Elementor\Core\DynamicTags\Tag {
            public function get_name() {
                return 'wpide-first-name';
            }

            public function get_title() {
                return 'Visitor First Name';
            }

            public function get_group() {
                return 'wpide-visitor';
            }

            public function get_categories() {
                return array( \Elementor\Modules\DynamicTags\Module::TEXT_CATEGORY );
            }

            protected function register_controls() {
                $this->add_control( 'fallback_name', array(
                    'label'   => 'Fallback for guests',
                    'type'    => \Elementor\Controls_Manager::TEXT,
                    'default' => 'there',
                ) );
            }

            public function render() {
                $user = wp_get_current_user();
                $name = $user->exists() ? ( $user->first_name ? $user->first_name : $user->display_name ) : $this->get_settings( 'fallback_name' );

                echo esc_html( $name );
            }
        }
    }

    $dynamic_tags->register_group( 'wpide-visitor', array( 'title' => 'Visitor' ) );
    $dynamic_tags->register( new WPIDE_Elementor_First_Name_Tag() );
} );