Better Ledger Connection handling (#1802)

cw_monero/lib/ledger.dart

@@ -47,10 +47,6 @@ void enableLedgerExchange(monero.wallet ptr, LedgerConnection connection) {
 
 void keepAlive(LedgerConnection connection) {
   if (connection.connectionType == ConnectionType.ble) {
-    UniversalBle.onConnectionChange = (String deviceId, bool isConnected) {
-      print("[Monero] Ledger Disconnected");
-      _ledgerKeepAlive?.cancel();
-    };
     _ledgerKeepAlive = Timer.periodic(Duration(seconds: 10), (_) async {
       try {
         UniversalBle.setNotifiable(
@@ -59,7 +55,7 @@ void keepAlive(LedgerConnection connection) {
           connection.device.deviceInfo.notifyCharacteristicKey,
           BleInputProperty.notification,
         );
-      } catch (_){}
+      } catch (_) {}
     });
   }
 }

cw_monero/lib/monero_wallet_service.dart

@@ -146,6 +146,11 @@ class MoneroWalletService extends WalletService<
           password: password);
       final isValid = wallet.walletAddresses.validate();
 
+      if (wallet.isHardwareWallet) {
+        wallet.setLedgerConnection(gLedger!);
+        gLedger = null;
+      }
+
       if (!isValid) {
         await restoreOrResetWalletFiles(name);
         wallet.close(shouldCleanup: false);

lib/monero/cw_monero.dart

@@ -402,6 +402,10 @@ class CWMonero extends Monero {
     moneroWallet.setLedgerConnection(connection);
   }
 
+  void resetLedgerConnection() {
+    disableLedgerExchange();
+  }
+
   @override
   void setGlobalLedgerConnection(ledger.LedgerConnection connection) {
     gLedger = connection;

lib/view_model/hardware_wallet/ledger_view_model.dart

@@ -98,7 +98,9 @@ abstract class LedgerViewModelBase with Store {
         print('Ledger Device State Changed: $event');
         if (event == sdk.BleConnectionState.disconnected) {
           _connection = null;
-          _connectionChangeListener?.cancel();
+          if (type == WalletType.monero) {
+            monero!.resetLedgerConnection();
+          }
         }
       });
     }

tool/configure.dart

@@ -415,6 +415,7 @@ abstract class Monero {
   WalletService createMoneroWalletService(Box<WalletInfo> walletInfoSource, Box<UnspentCoinsInfo> unspentCoinSource);
   Map<String, String> pendingTransactionInfo(Object transaction);
   void setLedgerConnection(Object wallet, ledger.LedgerConnection connection);
+  void resetLedgerConnection();
   void setGlobalLedgerConnection(ledger.LedgerConnection connection);
 }