[pos] improve payment processing

- cancel orders that have been abandoned and will not be paid
- show unpaid orders in history (in case one makes it through)
- set deadlines when creating orders in case it helps with enabling
  refunds

1 files changed, 5 insertions, 0 deletions

diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt
index 5278a03..27ef366 100644
--- a/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/payment/ProcessPaymentFragment.kt
@@ -60,6 +60,11 @@ class ProcessPaymentFragment : Fragment() {
         }
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        paymentManager.cancelPayment(getString(R.string.error_cancelled))
+    }
+
     private fun onPaymentStateChanged(payment: Payment) {
         if (payment.error != null) {
             topSnackbar(requireView(), payment.error, LENGTH_LONG)