View only wallet stuff mainly

lib/models/keys/view_only_wallet_data.dart

@@ -0,0 +1,164 @@
+import 'dart:convert';
+
+import '../../wallets/wallet/wallet_mixin_interfaces/extended_keys_interface.dart';
+import 'key_data_interface.dart';
+
+// do not remove or change the order of these enum values
+enum ViewOnlyWalletType {
+  cryptonote,
+  addressOnly,
+  xPub;
+}
+
+sealed class ViewOnlyWalletData with KeyDataInterface {
+  @override
+  final String walletId;
+
+  ViewOnlyWalletType get type;
+
+  ViewOnlyWalletData({
+    required this.walletId,
+  });
+
+  static ViewOnlyWalletData fromJsonEncodedString(
+    String jsonEncodedString, {
+    required String walletId,
+  }) {
+    final map = jsonDecode(jsonEncodedString) as Map;
+    final json = Map<String, dynamic>.from(map);
+    final type = ViewOnlyWalletType.values[json["type"] as int];
+
+    switch (type) {
+      case ViewOnlyWalletType.cryptonote:
+        return CryptonoteViewOnlyWalletData.fromJsonEncodedString(
+          jsonEncodedString,
+          walletId: walletId,
+        );
+
+      case ViewOnlyWalletType.addressOnly:
+        return AddressViewOnlyWalletData.fromJsonEncodedString(
+          jsonEncodedString,
+          walletId: walletId,
+        );
+
+      case ViewOnlyWalletType.xPub:
+        return ExtendedKeysViewOnlyWalletData.fromJsonEncodedString(
+          jsonEncodedString,
+          walletId: walletId,
+        );
+    }
+  }
+
+  String toJsonEncodedString();
+}
+
+class CryptonoteViewOnlyWalletData extends ViewOnlyWalletData {
+  @override
+  final type = ViewOnlyWalletType.cryptonote;
+
+  final String address;
+  final String privateViewKey;
+
+  CryptonoteViewOnlyWalletData({
+    required super.walletId,
+    required this.address,
+    required this.privateViewKey,
+  });
+
+  static CryptonoteViewOnlyWalletData fromJsonEncodedString(
+    String jsonEncodedString, {
+    required String walletId,
+  }) {
+    final map = jsonDecode(jsonEncodedString) as Map;
+    final json = Map<String, dynamic>.from(map);
+
+    return CryptonoteViewOnlyWalletData(
+      walletId: walletId,
+      address: json["address"] as String,
+      privateViewKey: json["privateViewKey"] as String,
+    );
+  }
+
+  @override
+  String toJsonEncodedString() => jsonEncode({
+        "type": type.index,
+        "address": address,
+        "privateViewKey": privateViewKey,
+      });
+}
+
+class AddressViewOnlyWalletData extends ViewOnlyWalletData {
+  @override
+  final type = ViewOnlyWalletType.addressOnly;
+
+  final String address;
+
+  AddressViewOnlyWalletData({
+    required super.walletId,
+    required this.address,
+  });
+
+  static AddressViewOnlyWalletData fromJsonEncodedString(
+    String jsonEncodedString, {
+    required String walletId,
+  }) {
+    final map = jsonDecode(jsonEncodedString) as Map;
+    final json = Map<String, dynamic>.from(map);
+
+    return AddressViewOnlyWalletData(
+      walletId: walletId,
+      address: json["address"] as String,
+    );
+  }
+
+  @override
+  String toJsonEncodedString() => jsonEncode({
+        "type": type.index,
+        "address": address,
+      });
+}
+
+class ExtendedKeysViewOnlyWalletData extends ViewOnlyWalletData {
+  @override
+  final type = ViewOnlyWalletType.xPub;
+
+  final List<XPub> xPubs;
+
+  ExtendedKeysViewOnlyWalletData({
+    required super.walletId,
+    required List<XPub> xPubs,
+  }) : xPubs = List.unmodifiable(xPubs);
+
+  static ExtendedKeysViewOnlyWalletData fromJsonEncodedString(
+    String jsonEncodedString, {
+    required String walletId,
+  }) {
+    final map = jsonDecode(jsonEncodedString) as Map;
+    final json = Map<String, dynamic>.from(map);
+
+    return ExtendedKeysViewOnlyWalletData(
+      walletId: walletId,
+      xPubs: List<Map<String, dynamic>>.from((json["xPubs"] as List))
+          .map(
+            (e) => XPub(
+              path: e["path"] as String,
+              encoded: e["encoded"] as String,
+            ),
+          )
+          .toList(growable: false),
+    );
+  }
+
+  @override
+  String toJsonEncodedString() => jsonEncode({
+        "type": type.index,
+        "xPubs": [
+          ...xPubs.map(
+            (e) => {
+              "path": e.path,
+              "encoded": e.encoded,
+            },
+          ),
+        ],
+      });
+}

lib/pages/add_wallet_views/name_your_wallet_view/name_your_wallet_view.dart

@@ -25,6 +25,7 @@ import '../../../utilities/name_generator.dart';
 import '../../../utilities/text_styles.dart';
 import '../../../utilities/util.dart';
 import '../../../wallets/crypto_currency/crypto_currency.dart';
+import '../../../wallets/crypto_currency/interfaces/view_only_option_currency_interface.dart';
 import '../../../wallets/crypto_currency/intermediate/frost_currency.dart';
 import '../../../wallets/isar/models/wallet_info.dart';
 import '../../../widgets/background.dart';
@@ -104,7 +105,9 @@ class _NameYourWalletViewState extends ConsumerState<NameYourWalletView> {
           case AddWalletType.New:
             unawaited(
               Navigator.of(context).pushNamed(
-                coin.hasMnemonicPassphraseSupport
+                coin.possibleMnemonicLengths.length > 1 ||
+                        coin.hasMnemonicPassphraseSupport ||
+                        coin is ViewOnlyOptionCurrencyInterface
                     ? NewWalletOptionsView.routeName
                     : NewWalletRecoveryPhraseWarningView.routeName,
                 arguments: Tuple2(