feat: add window position persistence feature with settings toggle

app/lib/l10n/app_en.arb

@@ -278,6 +278,8 @@
   "@settingLinesExpanded": { "description": "Lines expanded label" },
   "settingHideOnDeactivate": "Hide on deactivate",
   "@settingHideOnDeactivate": { "description": "Hide on deactivate label" },
+  "settingRememberWindowPosition": "Remember window position",
+  "@settingRememberWindowPosition": { "description": "Remember window position toggle label" },
   "settingScrollToTopOnOpen": "Scroll to top on open",
   "@settingScrollToTopOnOpen": { "description": "Scroll to top on open label" },
   "settingClearSearchOnOpen": "Clear search on open",
@@ -293,6 +295,8 @@
   "@subtitleStartupDesc": { "description": "Startup subtitle" },
   "subtitleHideOnDeactivate": "Close window when clicking outside",
   "@subtitleHideOnDeactivate": { "description": "Hide on deactivate subtitle" },
+  "subtitleRememberWindowPosition": "Reopen the window where you left it last time",
+  "@subtitleRememberWindowPosition": { "description": "Remember window position subtitle" },
   "subtitleScrollToTopOnOpen": "Resets scroll and selects latest item",
   "@subtitleScrollToTopOnOpen": { "description": "Scroll to top on open subtitle" },
   "subtitleClearSearchOnOpen": "Clears the search text each time",

app/lib/l10n/app_es.arb

@@ -139,6 +139,7 @@
   "settingLinesCollapsed": "L\u00edneas contra\u00eddas",
   "settingLinesExpanded": "L\u00edneas expandidas",
   "settingHideOnDeactivate": "Ocultar al hacer clic fuera",
+  "settingRememberWindowPosition": "Recordar posición de la ventana",
   "settingScrollToTopOnOpen": "Ir al inicio al abrir",
   "settingClearSearchOnOpen": "Limpiar b\u00fasqueda al abrir",
   "settingRetentionDaysLabel": "D\u00edas de retenci\u00f3n (0 = sin l\u00edmite)",
@@ -147,6 +148,7 @@
 
   "subtitleStartupDesc": "Se inicia en segundo plano al iniciar sesi\u00f3n",
   "subtitleHideOnDeactivate": "Cerrar la ventana al hacer clic fuera",
+  "subtitleRememberWindowPosition": "Reabrir la ventana donde la dejaste la última vez",
   "subtitleScrollToTopOnOpen": "Restablece el desplazamiento y selecciona el \u00faltimo elemento",
   "subtitleClearSearchOnOpen": "Borra el texto de b\u00fasqueda cada vez",
   "subtitlePasteSpeed": "Ajustar tiempos de restauraci\u00f3n y pegado",

app/lib/l10n/app_localizations.dart

@@ -806,6 +806,12 @@ abstract class AppLocalizations {
   /// **'Hide on deactivate'**
   String get settingHideOnDeactivate;
 
+  /// Remember window position toggle label
+  ///
+  /// In en, this message translates to:
+  /// **'Remember window position'**
+  String get settingRememberWindowPosition;
+
   /// Scroll to top on open label
   ///
   /// In en, this message translates to:
@@ -848,6 +854,12 @@ abstract class AppLocalizations {
   /// **'Close window when clicking outside'**
   String get subtitleHideOnDeactivate;
 
+  /// Remember window position subtitle
+  ///
+  /// In en, this message translates to:
+  /// **'Reopen the window where you left it last time'**
+  String get subtitleRememberWindowPosition;
+
   /// Scroll to top on open subtitle
   ///
   /// In en, this message translates to:

app/lib/l10n/app_localizations_en.dart

@@ -376,6 +376,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get settingHideOnDeactivate => 'Hide on deactivate';
 
+  @override
+  String get settingRememberWindowPosition => 'Remember window position';
+
   @override
   String get settingScrollToTopOnOpen => 'Scroll to top on open';
 
@@ -397,6 +400,10 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get subtitleHideOnDeactivate => 'Close window when clicking outside';
 
+  @override
+  String get subtitleRememberWindowPosition =>
+      'Reopen the window where you left it last time';
+
   @override
   String get subtitleScrollToTopOnOpen =>
       'Resets scroll and selects latest item';

app/lib/l10n/app_localizations_es.dart

@@ -377,6 +377,9 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get settingHideOnDeactivate => 'Ocultar al hacer clic fuera';
 
+  @override
+  String get settingRememberWindowPosition => 'Recordar posición de la ventana';
+
   @override
   String get settingScrollToTopOnOpen => 'Ir al inicio al abrir';
 
@@ -400,6 +403,10 @@ class AppLocalizationsEs extends AppLocalizations {
   String get subtitleHideOnDeactivate =>
       'Cerrar la ventana al hacer clic fuera';
 
+  @override
+  String get subtitleRememberWindowPosition =>
+      'Reabrir la ventana donde la dejaste la última vez';
+
   @override
   String get subtitleScrollToTopOnOpen =>
       'Restablece el desplazamiento y selecciona el último elemento';

app/lib/main.dart

@@ -226,6 +226,7 @@ class _CopyPasteAppState extends State<CopyPasteApp>
   final _navigatorKey = GlobalKey<NavigatorState>();
   StreamSubscription<ClipboardEvent>? _listenerSubscription;
   String? _lastTrayLocale;
+  Future<void>? _pendingConfigSave;
   bool _showPermissionGate = false;
   bool _showOnboarding = false;
   bool _showWaylandUnsupported = false;
@@ -246,6 +247,14 @@ class _CopyPasteAppState extends State<CopyPasteApp>
       showInTaskbar: false,
       popupWidth: _config.popupWidth.toDouble(),
       popupHeight: _config.popupHeight.toDouble(),
+      rememberPositionEnabled: () => _config.rememberWindowPosition,
+      savedPositionProvider: () {
+        final x = _config.lastWindowX;
+        final y = _config.lastWindowY;
+        if (x == null || y == null) return null;
+        return (x, y);
+      },
+      onPositionPersist: _onPositionPersist,
     );
     _trayIcon = TrayIcon(onToggle: _toggleWindow, onExit: _exitApp);
     _hotkeyHandler = HotkeyHandler(config: _config, onHotkey: _onHotkey);
@@ -386,9 +395,8 @@ class _CopyPasteAppState extends State<CopyPasteApp>
         await _appWindow.enterGateMode();
       } else {
         if (!_config.accessibilityWasGranted) {
-          _config = _config.copyWith(accessibilityWasGranted: true);
           unawaited(
-            _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
+            _persistConfig((c) => c.copyWith(accessibilityWasGranted: true)),
           );
         }
         if (isFirstRun) {
@@ -411,9 +419,10 @@ class _CopyPasteAppState extends State<CopyPasteApp>
         widget.storage.markAsInitialized();
       }
       if (isUpdate && Platform.isWindows) {
-        _config = _config.copyWith(lastRunVersion: AppConfig.appVersion);
         unawaited(
-          _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
+          _persistConfig(
+            (c) => c.copyWith(lastRunVersion: AppConfig.appVersion),
+          ),
         );
       }
     }
@@ -434,9 +443,8 @@ class _CopyPasteAppState extends State<CopyPasteApp>
       AppLogger.error('Classifier migration failed: $e\n$s');
       return; // version not saved → retries on next startup
     }
-    _config = _config.copyWith(lastRunVersion: AppConfig.appVersion);
     unawaited(
-      _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
+      _persistConfig((c) => c.copyWith(lastRunVersion: AppConfig.appVersion)),
     );
   }
 
@@ -728,13 +736,23 @@ class _CopyPasteAppState extends State<CopyPasteApp>
 
   void _dismissHint() {
     if (_config.hasSeenHint) return;
-    _config = _config.copyWith(hasSeenHint: true);
-    unawaited(
-      _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
-    );
+    unawaited(_persistConfig((c) => c.copyWith(hasSeenHint: true)));
     if (mounted) setState(() {});
   }
 
+  Future<void> _persistConfig(AppConfig Function(AppConfig) update) {
+    _config = update(_config);
+    final path = '${widget.storage.configPath}/${AppConfig.fileName}';
+    final next = (_pendingConfigSave ?? Future<void>.value())
+        .catchError((Object _) {})
+        .then((_) => _config.save(path));
+    _pendingConfigSave = next;
+    next.catchError((Object e) {
+      AppLogger.warn('config save failed: $e');
+    });
+    return next;
+  }
+
   Future<void> _updateLinuxConfig(AppConfig Function(AppConfig) update) async {
     final next = update(_config);
     if (identical(next, _config)) return;
@@ -761,6 +779,13 @@ class _CopyPasteAppState extends State<CopyPasteApp>
     }
   }
 
+  void _onPositionPersist(double x, double y) {
+    if (_config.lastWindowX == x && _config.lastWindowY == y) return;
+    unawaited(
+      _persistConfig((c) => c.copyWith(lastWindowX: x, lastWindowY: y)),
+    );
+  }
+
   Future<void> _onPasteItem(
     ClipboardItem item, {
     bool plainText = false,
@@ -1047,24 +1072,22 @@ class _CopyPasteAppState extends State<CopyPasteApp>
   }
 
   Future<void> _onPermissionGranted() async {
-    _config = _config.copyWith(accessibilityWasGranted: true);
-    unawaited(
-      _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
-    );
+    unawaited(_persistConfig((c) => c.copyWith(accessibilityWasGranted: true)));
     await _appWindow.exitGateMode();
     if (mounted) setState(() => _showPermissionGate = false);
   }
 
   Future<void> _onOnboardingDismissed(AppConfig fromOnboarding) async {
-    _config = fromOnboarding.copyWith(
-      hasSeenOnboarding: true,
-      hasCompletedOnboarding: true,
-      lastRunVersion: AppConfig.appVersion,
-    );
-    _applyOnboardingPersistence();
     unawaited(
-      _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
+      _persistConfig(
+        (_) => fromOnboarding.copyWith(
+          hasSeenOnboarding: true,
+          hasCompletedOnboarding: true,
+          lastRunVersion: AppConfig.appVersion,
+        ),
+      ),
     );
+    _applyOnboardingPersistence();
     setState(() => _showOnboarding = false);
     await _appWindow.exitGateMode();
     unawaited(_showStartupBalloon());
@@ -1074,15 +1097,16 @@ class _CopyPasteAppState extends State<CopyPasteApp>
     BuildContext ctx,
     AppConfig fromOnboarding,
   ) async {
-    _config = fromOnboarding.copyWith(
-      hasSeenOnboarding: true,
-      hasCompletedOnboarding: true,
-      lastRunVersion: AppConfig.appVersion,
-    );
-    _applyOnboardingPersistence();
     unawaited(
-      _config.save('${widget.storage.configPath}/${AppConfig.fileName}'),
+      _persistConfig(
+        (_) => fromOnboarding.copyWith(
+          hasSeenOnboarding: true,
+          hasCompletedOnboarding: true,
+          lastRunVersion: AppConfig.appVersion,
+        ),
+      ),
     );
+    _applyOnboardingPersistence();
     setState(() => _showOnboarding = false);
     await _appWindow.exitGateMode();
     await Future<void>.delayed(const Duration(milliseconds: 150));

app/lib/screens/settings_screen.dart

@@ -83,6 +83,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
   late String _themeMode;
 
   late bool _hideOnDeactivate;
+  late bool _rememberWindowPosition;
   late bool _resetScrollOnShow;
   late bool _resetSearchOnShow;
   late bool _resetFiltersOnShow;
@@ -131,6 +132,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
     _cardMaxLines = widget.config.cardMaxLines;
     _themeMode = widget.config.themeMode;
     _hideOnDeactivate = widget.config.hideOnDeactivate;
+    _rememberWindowPosition = widget.config.rememberWindowPosition;
     _resetScrollOnShow = widget.config.resetScrollOnShow;
     _resetSearchOnShow = widget.config.resetSearchOnShow;
     _resetFiltersOnShow = widget.config.resetFiltersOnShow;
@@ -182,6 +184,9 @@ class _SettingsScreenState extends State<SettingsScreen> {
     cardMaxLines: _cardMaxLines,
     themeMode: _themeMode,
     hideOnDeactivate: _hideOnDeactivate,
+    rememberWindowPosition: _rememberWindowPosition,
+    lastWindowX: _rememberWindowPosition ? widget.config.lastWindowX : null,
+    lastWindowY: _rememberWindowPosition ? widget.config.lastWindowY : null,
     resetScrollOnShow: _resetScrollOnShow,
     resetSearchOnShow: _resetSearchOnShow,
     resetFiltersOnShow: _resetFiltersOnShow,
@@ -251,6 +256,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
       _cardMaxLines = d.cardMaxLines;
       _themeMode = d.themeMode;
       _hideOnDeactivate = d.hideOnDeactivate;
+      _rememberWindowPosition = d.rememberWindowPosition;
       _resetScrollOnShow = d.resetScrollOnShow;
       _resetSearchOnShow = d.resetSearchOnShow;
       _resetFiltersOnShow = d.resetFiltersOnShow;
@@ -803,6 +809,16 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 _markChanged();
               },
             ),
+            _ToggleRow(
+              label: l.settingRememberWindowPosition,
+              subtitle: l.subtitleRememberWindowPosition,
+              value: _rememberWindowPosition,
+              colors: colors,
+              onChanged: (v) {
+                setState(() => _rememberWindowPosition = v);
+                _markChanged();
+              },
+            ),
             _ToggleRow(
               label: l.settingScrollToTopOnOpen,
               subtitle: l.subtitleScrollToTopOnOpen,