public static function output( $atts ) {
		if ( ! apply_filters( 'woocommerce_output_cart_shortcode_content', true ) ) {
			return;
		}

		// Constants.
		wc_maybe_define_constant( 'WOOCOMMERCE_CART', true );

		$atts        = shortcode_atts( array(), $atts, 'woocommerce_cart' );
		$nonce_value = wc_get_var( $_REQUEST['woocommerce-shipping-calculator-nonce'], wc_get_var( $_REQUEST['_wpnonce'], '' ) ); // @codingStandardsIgnoreLine.

		// Update Shipping. Nonce check uses new value and old value (woocommerce-cart). @todo remove in 4.0.
		if ( ! empty( $_POST['calc_shipping'] ) && ( wp_verify_nonce( $nonce_value, 'woocommerce-shipping-calculator' ) || wp_verify_nonce( $nonce_value, 'woocommerce-cart' ) ) ) { // WPCS: input var ok.
			self::calculate_shipping();

			// Also calc totals before we check items so subtotals etc are up to date.
			WC()->cart->calculate_totals();
		}

		// Check cart items are valid.
		do_action( 'woocommerce_check_cart_items' );

		// Calc totals.
		WC()->cart->calculate_totals();

		if ( WC()->cart->is_empty() ) {
			wc_get_template( 'cart/cart-empty.php' );
		} else {
			wc_get_template( 'cart/cart.php' );
		}
	}