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* feat(mobile): add privacy mode to mask money values Adds an app-wide "privacy mode" so users can hide monetary amounts from over-the-shoulder view. - PrivacyProvider (ChangeNotifier) backed by PreferencesService, so the choice persists across launches and every money widget rebuilds on toggle. - MoneyMasker.mask() collapses an amount's numeric portion into a short fixed run of bullets while keeping the currency symbol and sign (e.g. CA$1,234.56 -> CA$••••). A fixed run avoids leaking the value's magnitude and reads cleanly without stray separators. Currency- and locale-agnostic — it operates on already-formatted strings. - Masking applied at every money render site: net worth + per-currency totals + breakdown sheet (NetWorthCard), account balances (AccountCard, AccountDetailHeader, transaction form account selector), and transaction amounts (transactions list, recent transactions, calendar). - Two entry points: a "Hide amounts" switch in Settings -> Security, and a quick eye toggle in the top bar (visible on every tab). Tests: MoneyMasker unit tests (fixed-run mask, magnitude hidden, symbol/ sign kept, passthrough, idempotent) + a widget test asserting the net worth masks/unmasks as the provider flips; account_card_test updated to provide the new provider. flutter analyze: no new issues; full suite (123) green. * fix(mobile): address privacy-mode review feedback - Startup masking (Codex P1): read the privacy preference in main() before runApp and seed PrivacyProvider with it, so the first frame already has the correct value — money is never briefly rendered unmasked for a user who enabled "Hide amounts". Provider stays fail-closed otherwise: starts masked, SureApp's no-arg default is masked, and a failed read keeps it masked. A late-completing initial load no longer clobbers an explicit user toggle. - setHidden() reverts the in-memory state (and logs) if persistence fails, keeping the UI consistent with what's actually stored. - Mask the cash-balance detail chip in AccountDetailHeader (was leaking the cash position in privacy mode). - Privacy top-bar toggle gets a "Toggle privacy" tooltip + icon semantic label for accessibility (kept as an InkWell to match the adjacent settings control). - Tests: assert fail-closed initial state; assert the exact masked count; test the persistence round-trip (set -> reload); add PreferencesService.resetForTest() and reset between tests so the cached singleton can't leak state. 125 tests pass; flutter analyze: no new issues. * refactor(mobile): thread hideAmounts through calendar tiles Per review: the calendar tile builders read PrivacyProvider via context.read, relying implicitly on the parent build()'s context.watch to rebuild them — fragile if a tile is later extracted or wrapped in a RepaintBoundary. Pass hideAmounts down explicitly instead, matching the recent_transactions_screen pattern: - build() (context.watch) -> _buildCalendar -> _buildDayCell - _showTransactionsDialog reads once when the modal opens -> _buildTransactionTile No more context.read inside tile methods. 125 tests pass; analyze clean. * fix(mobile): watch PrivacyProvider inside calendar dialog builder Moving the hideAmounts read inside the showDialog builder and switching from context.read to context.watch ensures the dialog re-masks transaction amounts if the user toggles privacy mode while the dialog is open.
33 lines
1.5 KiB
Dart
33 lines
1.5 KiB
Dart
/// Masks monetary values for "privacy mode", where the user wants amounts
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/// hidden from over-the-shoulder view.
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///
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/// The numeric portion of an amount (its digits and any embedded grouping/
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/// decimal separators) is collapsed into a short, fixed run of bullets, while
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/// the currency symbol/code and sign are kept. So `CA$1,234.56` -> `CA$••••`
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/// and `-$42,078.35` -> `-$••••`. A fixed run (rather than one bullet per
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/// digit) avoids leaking the value's magnitude and reads cleanly without stray
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/// separators. Non-numeric characters are untouched, so the masker is currency-
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/// and locale-agnostic — it works on any already-formatted amount string.
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class MoneyMasker {
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const MoneyMasker._();
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/// The character used to mask digits.
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static const String maskChar = '•'; // •
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/// The fixed run of [maskChar] that replaces the numeric portion of an amount.
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static const String maskedNumber = '$maskChar$maskChar$maskChar$maskChar';
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/// A maximal run of digits and the separators embedded within them, requiring
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/// at least one digit so symbol-only strings (e.g. the `--` placeholder) are
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/// left alone.
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static final RegExp _numericRun = RegExp(r'[\d.,]*\d[\d.,]*');
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/// Returns [formatted] with its numeric portion replaced by [maskedNumber],
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/// preserving the currency symbol/code and sign. If [hidden] is false,
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/// [formatted] is returned unchanged.
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static String mask(String formatted, {bool hidden = true}) {
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if (!hidden) return formatted;
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return formatted.replaceAll(_numericRun, maskedNumber);
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}
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}
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