refactor(screen-privacy): extract from lib/core into a package

Author: wired-pasteque

lib/features/all_seed_view/ui/all_seed_view_screen.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/seed/domain/entity/seed.dart';
 import 'package:bb_mobile/core/swaps/domain/entity/swap_master_key_info.dart';
 import 'package:bb_mobile/core/themes/app_theme.dart';

lib/features/app_startup/ui/screens/legacy_backup_screen.dart

@@ -1,4 +1,4 @@
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/themes/app_theme.dart';
 import 'package:bb_mobile/core/utils/build_context_x.dart';
 import 'package:bb_mobile/core/utils/constants.dart';

lib/features/bip85_entropy/bip85_home_page.dart

@@ -10,7 +10,7 @@ import 'package:bb_mobile/features/bip85_entropy/presentation/cubit.dart';
 import 'package:bb_mobile/features/bip85_entropy/presentation/state.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bull_ui/bull_ui.dart' show Gap;
 
 class Bip85HomePage extends StatefulWidget {

lib/features/import_mnemonic/ui/mnemonic_page.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/themes/app_theme.dart';
 import 'package:bb_mobile/core/utils/build_context_x.dart';
 import 'package:bb_mobile/core/widgets/mnemonic_widget.dart';

lib/features/onboarding/ui/screens/onboarding_physical_recovery.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/utils/build_context_x.dart';
 import 'package:bb_mobile/core/widgets/loading/fading_linear_progress.dart';
 import 'package:bb_mobile/core/widgets/mnemonic_widget.dart';

lib/features/settings/presentation/bloc/settings_cubit.dart

@@ -3,7 +3,7 @@ import 'dart:async';
 import 'package:bb_mobile/core/settings/domain/get_settings_usecase.dart';
 import 'package:bb_mobile/core/settings/domain/settings_entity.dart';
 import 'package:bb_mobile/core/utils/logger.dart';
-import 'package:bb_mobile/core/utils/screen_capture_protection.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/utils/result.dart';
 import 'package:bb_mobile/features/settings/domain/settings_failure.dart';
 import 'package:bb_mobile/features/settings/domain/usecases/set_bitcoin_unit_usecase.dart';

lib/features/test_wallet_backup/ui/screens/show_mnemonic_screen.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/themes/app_theme.dart';
 import 'package:bb_mobile/core/utils/build_context_x.dart';
 import 'package:bb_mobile/core/utils/constants.dart';

lib/features/test_wallet_backup/ui/screens/verify_mnemonic_screen.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 
-import 'package:bb_mobile/core/mixins/privacy_screen.dart';
+import 'package:screen_privacy/screen_privacy.dart';
 import 'package:bb_mobile/core/themes/app_theme.dart';
 import 'package:bb_mobile/core/utils/build_context_x.dart';
 import 'package:bb_mobile/core/widgets/snackbar_utils.dart';

packages/screen_privacy/analysis_options.yaml

@@ -0,0 +1,8 @@
+include: package:lints/recommended.yaml
+
+linter:
+  rules:
+    - implementation_imports
+    - prefer_final_locals
+    - require_trailing_commas
+    - use_super_parameters

packages/screen_privacy/lib/screen_privacy.dart

@@ -0,0 +1,11 @@
+/// Screen-capture protection for sensitive screens (recovery phrase, seed
+/// views): blocks screenshots and screen recording via the OS secure flag
+/// (Android `FLAG_SECURE`, iOS secure overlay).
+///
+/// A screen opts in with the [PrivacyScreen] mixin; the process-wide
+/// [ScreenCaptureProtection] controller reference-counts protected screens and
+/// gates the flag on the user's preference.
+library;
+
+export 'src/privacy_screen.dart';
+export 'src/screen_capture_protection.dart';