Cw 1291 ledger fixes (#2741)

* fix: handle unexpected ViewModel in ledger connection process

* fix: add missing exception handler for `_QueuedFuture.execute` in `exception_handler.dart`

* fix: handle hardware wallet connection flow in exchange trade page

* refactor: replace hardware wallet conditional logic with switch statement for improved readability and future extensibility

* feat: add hardware wallet support for dEURO savings actions and approval flow

---------

Co-authored-by: Konstantin Ullrich <konstantinullrich12@gmail.com>

cw_evm/lib/evm_chain_wallet.dart

@@ -210,23 +210,33 @@ abstract class EVMChainWalletBase
     // check for Already existing scam tokens, cuz users can get scammed twice ¯\_(ツ)_/¯
     await _checkForExistingScamTokens();
 
-    if (walletInfo.hardwareWalletType == HardwareWalletType.ledger) {
-      _evmChainPrivateKey = EvmLedgerCredentials(walletInfo.address);
-      walletAddresses.address = walletInfo.address;
-    } else if (walletInfo.hardwareWalletType == HardwareWalletType.bitbox) {
-      _evmChainPrivateKey = EvmBitboxCredentials(walletInfo.address);
-      walletAddresses.address = walletInfo.address;
-    } else if (walletInfo.hardwareWalletType == HardwareWalletType.trezor) {
-      _evmChainPrivateKey = EvmTrezorCredentials(walletInfo.address);
-      walletAddresses.address = walletInfo.address;
-    } else {
-      _evmChainPrivateKey = await getPrivateKey(
-        mnemonic: _mnemonic,
-        privateKey: _hexPrivateKey,
-        password: _password,
-        passphrase: passphrase,
-      );
-      walletAddresses.address = _evmChainPrivateKey.address.hexEip55;
+    switch(walletInfo.hardwareWalletType) {
+      case HardwareWalletType.ledger:
+        _evmChainPrivateKey = EvmLedgerCredentials(walletInfo.address);
+        walletAddresses.address = walletInfo.address;
+        break;
+      case HardwareWalletType.bitbox:
+        _evmChainPrivateKey = EvmBitboxCredentials(walletInfo.address);
+        walletAddresses.address = walletInfo.address;
+        break;
+      case HardwareWalletType.trezor:
+        _evmChainPrivateKey = EvmTrezorCredentials(walletInfo.address);
+        walletAddresses.address = walletInfo.address;
+        break;
+      case HardwareWalletType.cupcake:
+      case HardwareWalletType.coldcard:
+      case HardwareWalletType.seedsigner:
+      case HardwareWalletType.keystone:
+        throw UnimplementedError();
+      case null:
+        _evmChainPrivateKey = await getPrivateKey(
+          mnemonic: _mnemonic,
+          privateKey: _hexPrivateKey,
+          password: _password,
+          passphrase: passphrase,
+        );
+        walletAddresses.address = _evmChainPrivateKey.address.hexEip55;
+        break;
     }
     await save();
   }

lib/di.dart

@@ -1612,13 +1612,17 @@ Future<void> setup({
   getIt.registerFactory(() => DevExchangeProviderLogsPage(getIt.get<ExchangeProviderLogsViewModel>()));
 
   getIt.registerFactory(() => StartTorPage(StartTorViewModel(),));
-  
+
   getIt.registerFactory(() => DEuroViewModel(
-    getIt<AppStore>(),
-    getIt<BalanceViewModel>(),
-    getIt<SettingsStore>(),
-    getIt<FiatConversionStore>(),
-  ));
+        getIt<AppStore>(),
+        getIt<BalanceViewModel>(),
+        getIt<SettingsStore>(),
+        getIt<FiatConversionStore>(),
+        getIt.get<AppStore>().wallet!.isHardwareWallet
+            ? getIt<HardwareWalletViewModel>(
+                param1: getIt.get<AppStore>().wallet!.hardwareWalletType!)
+            : null,
+      ));
 
   getIt.registerFactory(() => DEuroSavingsPage(getIt<DEuroViewModel>()));
 

lib/src/screens/exchange_trade/exchange_trade_page.dart

@@ -1,6 +1,7 @@
 import 'package:cake_wallet/exchange/exchange_provider_description.dart';
 import 'package:cake_wallet/reactions/wallet_connect.dart';
 import 'package:cake_wallet/routes.dart';
+import 'package:cake_wallet/src/screens/connect_device/connect_device_page.dart';
 import 'package:cake_wallet/src/screens/exchange/widgets/desktop_exchange_cards_section.dart';
 import 'package:cake_wallet/src/screens/exchange/widgets/mobile_exchange_cards_section.dart';
 import 'package:cake_wallet/src/screens/exchange_trade/widgets/exchange_trade_card_item_widget.dart';
@@ -190,7 +191,7 @@ class ExchangeTradeState extends State<ExchangeTradeForm> {
                     isDisabled: trade.inputAddress == null || trade.inputAddress!.isEmpty ||
                         sendingState is ExecutedSuccessfullyState,
                     isLoading: sendingState is IsExecutingState,
-                    onPressed: () => widget.exchangeTradeViewModel.confirmSending(),
+                    onPressed: _onPressedSendFromCakeWallet,
                     text: S.current.send_from_cake_wallet,
                     color: Theme.of(context).colorScheme.primary,
                     textColor: Theme.of(context).colorScheme.onPrimary,
@@ -204,6 +205,30 @@ class ExchangeTradeState extends State<ExchangeTradeForm> {
     );
   }
 
+  Future<void> _onPressedSendFromCakeWallet() async {
+    final sendVM = widget.exchangeTradeViewModel.sendViewModel;
+
+    if (sendVM.wallet.isHardwareWallet) {
+      if (!sendVM.hardwareWalletViewModel!.isConnected) {
+        await Navigator.of(context).pushNamed(Routes.connectDevices,
+            arguments: ConnectDevicePageParams(
+              walletType: sendVM.walletType,
+              hardwareWalletType:
+              sendVM.wallet.walletInfo.hardwareWalletType!,
+              onConnectDevice: (context, _) {
+                print(sendVM.wallet);
+                sendVM.hardwareWalletViewModel!.initWallet(sendVM.wallet);
+                Navigator.of(context).pop();
+              },
+            ));
+      } else {
+        sendVM.hardwareWalletViewModel!.initWallet(sendVM.wallet);
+      }
+    }
+
+    widget.exchangeTradeViewModel.confirmSending();
+  }
+
   BuildContext? dialogContext;
   BuildContext? loadingBottomSheetContext;
 

lib/src/screens/integrations/deuro/savings_page.dart

@@ -1,6 +1,8 @@
 import 'package:cake_wallet/core/execution_state.dart';
 import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cake_wallet/routes.dart';
 import 'package:cake_wallet/src/screens/base_page.dart';
+import 'package:cake_wallet/src/screens/connect_device/connect_device_page.dart';
 import 'package:cake_wallet/src/screens/integrations/deuro/widgets/info_chip.dart';
 import 'package:cake_wallet/src/screens/integrations/deuro/widgets/interest_card_widget.dart';
 import 'package:cake_wallet/src/screens/integrations/deuro/widgets/savings_card_widget.dart';
@@ -62,7 +64,7 @@ class DEuroSavingsPage extends BasePage {
                       fiatCurrency: _dEuroViewModel.isFiatDisabled ? null : _dEuroViewModel.fiat,
                       onAddSavingsPressed: () => _onSavingsAdd(context),
                       onRemoveSavingsPressed: () => _onSavingsRemove(context),
-                      onApproveSavingsPressed: _dEuroViewModel.prepareApproval,
+                      onApproveSavingsPressed: () => _onApproval(context),
                       onTooltipPressed: () => _onSavingsTooltipPressed(context),
                       isEnabled: _dEuroViewModel.isEnabled,
                       isLoading: _dEuroViewModel.isLoading,
@@ -74,8 +76,8 @@ class DEuroSavingsPage extends BasePage {
                       fiatAccruedInterest: _dEuroViewModel.fiatAccruedInterestFormated,
                       fiatCurrency: _dEuroViewModel.isFiatDisabled ? null : _dEuroViewModel.fiat,
                       accruedInterest: _dEuroViewModel.accruedInterestFormated,
-                      onCollectInterest: _onCollectInterest,
-                      onReinvestInterest: _onReinvestInterest,
+                      onCollectInterest: () => _onCollectInterest(context),
+                      onReinvestInterest: () => _onReinvestInterest(context),
                       onTooltipPressed: () => _onInterestTooltipPressed(context),
                       isEnabled: _dEuroViewModel.isSavingsActionsEnabled,
                     ),
@@ -117,7 +119,10 @@ class DEuroSavingsPage extends BasePage {
     if (_editSheetIsOpen) return;
     _editSheetIsOpen = true;
     final amount = await _showEditBottomSheet(context, isAdding: true);
-    if (amount != null) _dEuroViewModel.prepareSavingsEdit(amount, true);
+    if (amount != null) {
+      await _requireHardwareWallet(context);
+      _dEuroViewModel.prepareSavingsEdit(amount, true);
+    }
     _editSheetIsOpen = false;
   }
 
@@ -125,24 +130,52 @@ class DEuroSavingsPage extends BasePage {
     if (_editSheetIsOpen) return;
     _editSheetIsOpen = true;
     final amount = await _showEditBottomSheet(context, isAdding: false);
-    if (amount != null) _dEuroViewModel.prepareSavingsEdit(amount, false);
-    _editSheetIsOpen = false;
+    if (amount != null) {
+      await _requireHardwareWallet(context);
+      _dEuroViewModel.prepareSavingsEdit(amount, false);
+    }
+      _editSheetIsOpen = false;
   }
 
-  Future<void> _onReinvestInterest() async {
+  Future<void> _onReinvestInterest(BuildContext context) async {
     if (_editSheetIsOpen) return;
     _editSheetIsOpen = true;
+    await _requireHardwareWallet(context);
     await _dEuroViewModel.prepareReinvestInterest();
     _editSheetIsOpen = false;
   }
 
-  Future<void> _onCollectInterest() async {
+  Future<void> _onCollectInterest(BuildContext context) async {
     if (_editSheetIsOpen) return;
     _editSheetIsOpen = true;
+    await _requireHardwareWallet(context);
     await _dEuroViewModel.prepareCollectInterest();
     _editSheetIsOpen = false;
   }
 
+  Future<void> _onApproval(BuildContext context) async {
+    await _requireHardwareWallet(context);
+    _dEuroViewModel.prepareApproval();
+  }
+
+  Future<void> _requireHardwareWallet(BuildContext context) async {
+    if (_dEuroViewModel.wallet.isHardwareWallet) {
+      if (!_dEuroViewModel.hardwareWalletViewModel!.isConnected) {
+        await Navigator.of(context).pushNamed(Routes.connectDevices,
+            arguments: ConnectDevicePageParams(
+              walletType: _dEuroViewModel.wallet.type,
+              hardwareWalletType: _dEuroViewModel.wallet.walletInfo.hardwareWalletType!,
+              onConnectDevice: (context, _) {
+                _dEuroViewModel.hardwareWalletViewModel!.initWallet(_dEuroViewModel.wallet);
+                Navigator.of(context).pop();
+              },
+            ));
+      } else {
+        _dEuroViewModel.hardwareWalletViewModel!.initWallet(_dEuroViewModel.wallet);
+      }
+    }
+  }
+
   bool _isReactionsSet = false;
 
   void _setReactions(BuildContext context, DEuroViewModel dEuroViewModel) {

lib/view_model/integrations/deuro_view_model.dart

@@ -7,10 +7,12 @@ import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
+import 'package:cake_wallet/view_model/hardware_wallet/hardware_wallet_view_model.dart';
 import 'package:cake_wallet/view_model/send/send_view_model_state.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/parse_fixed.dart';
 import 'package:cw_core/pending_transaction.dart';
+import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:mobx/mobx.dart';
 
@@ -23,20 +25,20 @@ abstract class DEuroViewModelBase with Store {
 
   static BigInt get MIN_ACCRUED_INTEREST => BigInt.parse("1000000000000");
 
-  DEuroViewModelBase(
-    this._appStore,
-    this.balanceViewModel,
-    this._settingsStore,
-    this._fiatConversationStore,
-  ) {
+  DEuroViewModelBase(this._appStore, this.balanceViewModel, this._settingsStore,
+      this._fiatConversationStore,
+      [this.hardwareWalletViewModel]) {
     reloadInterestRate();
     reloadSavingsUserData();
   }
 
   final BalanceViewModel balanceViewModel;
+  final HardwareWalletViewModel? hardwareWalletViewModel;
   final SettingsStore _settingsStore;
   final FiatConversionStore _fiatConversationStore;
 
+  WalletBase get wallet => this._appStore.wallet!;
+
   @computed
   bool get isFiatDisabled => balanceViewModel.isFiatDisabled;