public function widget( $args, $instance ) {
		$viewed_products = ! empty( $_COOKIE['woocommerce_recently_viewed'] ) ? (array) explode( '|', wp_unslash( $_COOKIE['woocommerce_recently_viewed'] ) ) : array(); // @codingStandardsIgnoreLine
		$viewed_products = array_reverse( array_filter( array_map( 'absint', $viewed_products ) ) );

		if ( empty( $viewed_products ) ) {
			return;
		}

		ob_start();

		$number = ! empty( $instance['number'] ) ? absint( $instance['number'] ) : $this->settings['number']['std'];

		$query_args = array(
			'posts_per_page' => $number,
			'no_found_rows'  => 1,
			'post_status'    => 'publish',
			'post_type'      => 'product',
			'post__in'       => $viewed_products,
			'orderby'        => 'post__in',
		);

		if ( 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' ) ) {
			$query_args['tax_query'] = array(
				array(
					'taxonomy' => 'product_visibility',
					'field'    => 'name',
					'terms'    => 'outofstock',
					'operator' => 'NOT IN',
				),
			); // WPCS: slow query ok.
		}

		$r = new WP_Query( apply_filters( 'woocommerce_recently_viewed_products_widget_query_args', $query_args ) );

		if ( $r->have_posts() ) {

			$this->widget_start( $args, $instance );

			echo wp_kses_post( apply_filters( 'woocommerce_before_widget_product_list', '<ul class="product_list_widget">' ) );

			$template_args = array(
				'widget_id' => isset( $args['widget_id'] ) ? $args['widget_id'] : $this->widget_id,
			);

			while ( $r->have_posts() ) {
				$r->the_post();
				wc_get_template( 'content-widget-product.php', $template_args );
			}

			echo wp_kses_post( apply_filters( 'woocommerce_after_widget_product_list', '</ul>' ) );

			$this->widget_end( $args );
		}

		wp_reset_postdata();

		$content = ob_get_clean();

		echo $content; // WPCS: XSS ok.
	}