/**
* provides functionality to tell checkout if
* the gateway should be processed or not. If false, the gateway will not be
* processed, otherwise the gateway will be processed.
*
* @param $subtotal
* @param $shipping_total
* @param int $discount
* @return boolean defaults to needs_payment from cart class. If overridden, the gateway will provide
* details as to when it should or shouldn't be processed.
* @since 1.2
*/
public function process_gateway($subtotal, $shipping_total, $discount = 0)
{
// default to cart needs_payment() to keep the same functionality that FFL Commerce offers today
// if overridden, the gateway will provide the details when to skip or not
return fflcommerce_cart::needs_payment();
}