CW-711 passphrase for XMR/WOWcreation (#1992)

* add monero passphrase
add wownero passphrase
add passphrase to seed screen

* obscure passphrase by default
disable passphrase create for zano

* Update lib/view_model/wallet_keys_view_model.dart [skip ci]

* Update lib/src/screens/wallet_keys/wallet_keys_page.dart [skip ci]

* Update lib/view_model/advanced_privacy_settings_view_model.dart

* dynamic passphrase icon

* fix polyseed not being encrypted by passphrase

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

lib/monero/cw_monero.dart

@@ -253,9 +253,10 @@ class CWMonero extends Monero {
     required String name,
     required String language,
     required bool isPolyseed,
+    required String? passphrase,
     String? password}) =>
       MoneroNewWalletCredentials(
-        name: name, password: password, language: language, isPolyseed: isPolyseed);
+        name: name, password: password, language: language, isPolyseed: isPolyseed, passphrase: passphrase);
 
   @override
   Map<String, String> getKeys(Object wallet) {

lib/src/screens/wallet_keys/wallet_keys_page.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:cake_wallet/entities/qr_view_data.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/routes.dart';
@@ -15,6 +17,8 @@ import 'package:cake_wallet/utils/show_bar.dart';
 import 'package:cake_wallet/view_model/wallet_keys_view_model.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_mobx/flutter_mobx.dart';
+import 'package:mobx/mobx.dart';
 import 'package:qr_flutter/qr_flutter.dart';
 
 class WalletKeysPage extends BasePage {
@@ -162,6 +166,8 @@ class _WalletKeysPageBodyState extends State<WalletKeysPageBody>
       children: [
         if (isLegacySeedOnly || isLegacySeed) _buildHeightBox(),
         const SizedBox(height: 20),
+        (_buildPassphraseBox() ?? Container()),
+        if (widget.walletKeysViewModel.passphrase.isNotEmpty) const SizedBox(height: 20),
         Expanded(
           child: SeedPhraseGridWidget(
             list: isLegacySeed
@@ -262,6 +268,64 @@ class _WalletKeysPageBodyState extends State<WalletKeysPageBody>
       ),
     );
   }
+  
+
+  Widget? _buildPassphraseBox() {
+    if (widget.walletKeysViewModel.passphrase.isEmpty) return null;
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 14),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(8),
+        color: Theme.of(context).cardColor,
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Text(
+            S.of(context).passphrase_view_keys,
+            textAlign: TextAlign.center,
+            style: TextStyle(
+              fontSize: 14,
+              fontWeight: FontWeight.w500,
+              color: Theme.of(context).extension<CakeTextTheme>()!.buttonTextColor.withOpacity(0.5),
+            ),
+          ),
+          const SizedBox(width: 6),
+          Expanded(
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                Observer(builder: (BuildContext context) {
+                  return Text(
+                    (widget.walletKeysViewModel.obscurePassphrase) ?
+                      "*****" :
+                      widget.walletKeysViewModel.passphrase,
+                    style: TextStyle(
+                      fontSize: 14,
+                      fontWeight: FontWeight.w500,
+                      color: Theme.of(context).extension<CakeTextTheme>()!.buttonTextColor,
+                    ),
+                  );
+                }),
+                Observer(builder: (BuildContext context) {
+                    return GestureDetector(
+                    onTap: () {
+                      widget.walletKeysViewModel.obscurePassphrase = !widget.walletKeysViewModel.obscurePassphrase;
+                    },
+                    child: Icon(
+                      widget.walletKeysViewModel.obscurePassphrase ? Icons.visibility_off : Icons.visibility,
+                      size: 16,
+                      color: Theme.of(context).textTheme.bodyLarge?.color?.withOpacity(0.7),
+                    )
+                  );
+                }),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
 
 
   Widget _buildBottomActionPanel({

lib/view_model/advanced_privacy_settings_view_model.dart

@@ -78,8 +78,8 @@ abstract class AdvancedPrivacySettingsViewModelBase with Store {
         WalletType.ethereum,
         WalletType.polygon,
         WalletType.tron,
-        if (isRestore) WalletType.monero,
-        if (isRestore) WalletType.wownero,
+        WalletType.monero,
+        WalletType.wownero,
         if (isRestore) WalletType.zano,
       ].contains(type);
 

lib/view_model/wallet_keys_view_model.dart

@@ -86,9 +86,21 @@ abstract class WalletKeysViewModelBase with Store {
     if (_wallet.type == WalletType.monero) {
       return monero!.getRestoreHeight(_wallet)?.toString() ?? '';
     }
+    if (_wallet.type == WalletType.wownero) {
+      return wownero!.getRestoreHeight(_wallet)?.toString() ?? '';
+    }
     return '';
   }
 
+
+
+  @observable
+  bool obscurePassphrase = true;
+  
+  String get passphrase {
+    return _wallet.passphrase ?? '';
+  }
+
   /// The Regex split the words based on any whitespace character.
   ///
   /// Either standard ASCII space (U+0020) or the full-width space character (U+3000) used by the Japanese.
@@ -309,6 +321,12 @@ abstract class WalletKeysViewModelBase with Store {
   }
 
   Future<String?> get restoreHeight async {
+    if (_wallet.type == WalletType.monero) {
+      return monero!.getRestoreHeight(_wallet)?.toString();
+    }
+    if (_wallet.type == WalletType.wownero) {
+      return wownero!.getRestoreHeight(_wallet)?.toString();
+    }
     if (_restoreHeightByTransactions != 0)
       return getRoundedRestoreHeight(_restoreHeightByTransactions);
     if (_restoreHeight != 0) return _restoreHeight.toString();

lib/view_model/wallet_new_vm.dart

@@ -100,6 +100,7 @@ abstract class WalletNewVMBase extends WalletCreationVM with Store {
             name: name,
             language: options!.first as String,
             password: walletPassword,
+            passphrase: passphrase,
             isPolyseed: options.last as bool);
       case WalletType.bitcoin:
       case WalletType.litecoin:
@@ -168,6 +169,7 @@ abstract class WalletNewVMBase extends WalletCreationVM with Store {
           language: options!.first as String,
           isPolyseed: options.last as bool,
           password: walletPassword,
+          passphrase: passphrase,
         );
       case WalletType.zano:
         return zano!.createZanoNewWalletCredentials(

lib/wownero/cw_wownero.dart

@@ -233,9 +233,10 @@ class CWWownero extends Wownero {
           {required String name,
           required String language,
           required bool isPolyseed,
-          String? password}) =>
+          String? password,
+          String? passphrase}) =>
       WowneroNewWalletCredentials(
-          name: name, password: password, language: language, isPolyseed: isPolyseed);
+          name: name, password: password, language: language, isPolyseed: isPolyseed, passphrase: passphrase);
 
   @override
   Map<String, String> getKeys(Object wallet) {
@@ -250,6 +251,12 @@ class CWWownero extends Wownero {
     };
   }
 
+  @override
+  int? getRestoreHeight(Object wallet) {
+    final wowneroWallet = wallet as WowneroWallet;
+    return wowneroWallet.restoreHeight;
+  }
+
   @override
   Object createWowneroTransactionCreationCredentials(
           {required List<Output> outputs, required TransactionPriority priority}) =>