feat: тактильная отдача + тумблер в настройках

lib/core/utils/haptics.dart

@@ -0,0 +1,83 @@
+import 'package:flutter/services.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// Centralized tactile feedback for Komet.
+///
+/// Wraps Flutter's [HapticFeedback] so the whole app speaks one tactile
+/// "language": the same gesture always feels the same. Composite patterns
+/// chain impacts with short delays to produce richer, more memorable
+/// sensations than a single buzz.
+///
+/// Every call is best-effort and silent on failure — a device without a
+/// vibrator (or with system haptics disabled) must never crash the UI.
+class Haptics {
+  Haptics._();
+
+  static const String _prefKey = 'haptics_enabled';
+
+  /// Master switch. Silences every haptic app-wide when `false`.
+  /// Controlled by the user via Settings; persisted across launches.
+  static bool enabled = true;
+
+  /// Restores the saved preference. Call once during app startup,
+  /// before the first frame. Defaults to enabled when never set.
+  static Future<void> load() async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      enabled = prefs.getBool(_prefKey) ?? true;
+    } catch (_) {
+      enabled = true;
+    }
+  }
+
+  /// Updates the master switch and persists it.
+  static Future<void> setEnabled(bool value) async {
+    enabled = value;
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setBool(_prefKey, value);
+    } catch (_) {
+      // Persistence is best-effort; the in-memory switch still applies.
+    }
+  }
+
+  static Future<void> _fire(Future<void> Function() effect) async {
+    if (!enabled) return;
+    try {
+      await effect();
+    } catch (_) {
+      // Intentionally swallowed: haptics are a nicety, never a hard dependency.
+    }
+  }
+
+  /// A crisp, light tick — taps, toggles, opening panels.
+  static Future<void> tap() => _fire(HapticFeedback.lightImpact);
+
+  /// A firmer press — confirmations, entering a mode.
+  static Future<void> medium() => _fire(HapticFeedback.mediumImpact);
+
+  /// A strong thud — destructive or weighty actions.
+  static Future<void> heavy() => _fire(HapticFeedback.heavyImpact);
+
+  /// The subtle detent of moving between discrete options — tabs, selection.
+  static Future<void> selection() => _fire(HapticFeedback.selectionClick);
+
+  /// Message sent: a quick, instant tick (the "whoosh").
+  static Future<void> send() => tap();
+
+  /// A two-beat rising pulse — success, completion, "it landed".
+  static Future<void> success() async {
+    if (!enabled) return;
+    await _fire(HapticFeedback.lightImpact);
+    await Future.delayed(const Duration(milliseconds: 90));
+    await _fire(HapticFeedback.mediumImpact);
+  }
+
+  /// A double thud — errors, rejected or failed actions.
+  static Future<void> error() async {
+    if (!enabled) return;
+    await _fire(HapticFeedback.heavyImpact);
+    await Future.delayed(const Duration(milliseconds: 120));
+    await _fire(HapticFeedback.heavyImpact);
+  }
+}

lib/frontend/screens/chats/chat_list_screen.dart

@@ -12,6 +12,7 @@ import '../calls/calls_tab.dart';
 import '../contacts/contacts_tab.dart';
 import '../profile/settings_tab.dart';
 import '../../../backend/api.dart';
+import '../../../core/utils/haptics.dart';
 import '../../../backend/models/chat_folder.dart';
 import '../../../backend/modules/account.dart';
 import '../../../backend/modules/chats.dart';
@@ -139,6 +140,7 @@ class _ChatListScreenState extends State<ChatListScreen>
   }
 
   void _toggleSelection(String chatId) {
+    Haptics.selection();
     setState(() {
       if (_selectedChats.contains(chatId)) {
         _selectedChats.remove(chatId);
@@ -729,6 +731,8 @@ class _ChatListScreenState extends State<ChatListScreen>
     if (index == _currentNavIndex && !_navPageAnimController.isAnimating) {
       return;
     }
+    // Detent "click" when crossing into a different tab.
+    Haptics.selection();
     double fromT;
     if (_navPageAnimController.isAnimating) {
       final t = Curves.easeOutCubic.transform(_navPageAnimController.value);
@@ -743,6 +747,7 @@ class _ChatListScreenState extends State<ChatListScreen>
   }
 
   void _toggleFab() {
+    Haptics.tap();
     setState(() {
       _isFabOpen = !_isFabOpen;
       if (_isFabOpen) {

lib/frontend/screens/chats/chat_screen.dart

@@ -8,6 +8,7 @@ import '../../../main.dart';
 import '../../../backend/api.dart';
 import '../../../backend/modules/messages.dart';
 import '../../../core/storage/app_database.dart';
+import '../../../core/utils/haptics.dart';
 import '../../../models/attachment.dart';
 import '../../../backend/modules/messages.dart' show ContactCache;
 import '../../widgets/message_bubble.dart';
@@ -153,6 +154,10 @@ class _ChatScreenState extends State<ChatScreen>
         _hasText = false;
       });
 
+      // Instant tactile "whoosh" the moment the message leaves the composer,
+      // not after the network round-trip — feedback must feel immediate.
+      Haptics.send();
+
       _scrollToBottom();
 
       await messagesModule.sendMessage(_myId, widget.chatId, text);
@@ -173,6 +178,7 @@ class _ChatScreenState extends State<ChatScreen>
       }
     } catch (e) {
       debugPrint('Error sending message: $e');
+      Haptics.error();
     } finally {
       setState(() {
         _isSending = false;

lib/frontend/screens/profile/settings_tab.dart

@@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import '../../../core/storage/app_database.dart';
+import '../../../core/utils/haptics.dart';
 import '../../../l10n/app_localizations.dart';
 import '../../../main.dart';
 import '../auth/proxy_settings_sheet.dart';
@@ -30,6 +31,7 @@ class _SettingsTabState extends State<SettingsTab> {
   int _versionSecretTapCount = 0;
   Timer? _versionSecretTapResetTimer;
   StreamSubscription? _profileUpdateSub;
+  bool _hapticsEnabled = Haptics.enabled;
 
   @override
   void initState() {
@@ -83,6 +85,13 @@ class _SettingsTabState extends State<SettingsTab> {
     });
   }
 
+  Future<void> _setHaptics(bool value) async {
+    await Haptics.setEnabled(value);
+    // Let the user *feel* the confirmation the instant they switch it on.
+    if (value) Haptics.success();
+    if (mounted) setState(() => _hapticsEnabled = value);
+  }
+
   @override
   Widget build(BuildContext context) {
     final cs = Theme.of(context).colorScheme;
@@ -144,6 +153,12 @@ child: _buildSection(
                       icon: Symbols.notifications_active,
                       label: 'Уведомления и звук',
                     ),
+                    _SettingsItem(
+                      icon: Symbols.vibration,
+                      label: 'Тактильная отдача',
+                      toggleValue: _hapticsEnabled,
+                      onToggle: _setHaptics,
+                    ),
                     _SettingsItem(
                       icon: Symbols.vpn_lock,
                       label: 'Прокси',
@@ -450,7 +465,9 @@ child: _buildSection(
         Material(
           color: Colors.transparent,
           child: InkWell(
-            onTap: item.onTap ?? () {},
+            onTap: item.isToggle
+                ? () => item.onToggle!(!(item.toggleValue ?? false))
+                : (item.onTap ?? () {}),
             borderRadius: isLast
                 ? const BorderRadius.vertical(bottom: Radius.circular(20))
                 : null,
@@ -475,12 +492,18 @@ child: _buildSection(
                       ),
                     ),
                   ),
-                  Icon(
-                    Symbols.chevron_right,
-                    color: cs.outline,
-                    size: 20,
-                    weight: 400,
-                  ),
+                  if (item.isToggle)
+                    Switch.adaptive(
+                      value: item.toggleValue ?? false,
+                      onChanged: item.onToggle,
+                    )
+                  else
+                    Icon(
+                      Symbols.chevron_right,
+                      color: cs.outline,
+                      size: 20,
+                      weight: 400,
+                    ),
                 ],
               ),
             ),
@@ -505,7 +528,20 @@ class _SettingsItem {
   final String label;
   final VoidCallback? onTap;
 
-  const _SettingsItem({required this.icon, required this.label, this.onTap});
+  /// When [onToggle] is set the row renders a trailing switch instead of a
+  /// chevron, and [toggleValue] reflects its current state.
+  final bool? toggleValue;
+  final ValueChanged<bool>? onToggle;
+
+  const _SettingsItem({
+    required this.icon,
+    required this.label,
+    this.onTap,
+    this.toggleValue,
+    this.onToggle,
+  });
+
+  bool get isToggle => onToggle != null;
 }
 
 class _PhoneSpoiler extends StatefulWidget {

lib/frontend/widgets/message_bubble.dart

@@ -6,6 +6,7 @@ import 'package:komet/main.dart';
 import 'package:flutter/foundation.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import '../../backend/modules/messages.dart';
+import '../../core/utils/haptics.dart';
 import '../../models/attachment.dart';
 
 enum MessageType { text, attachment, voice, control }
@@ -329,7 +330,7 @@ class MessageBubble extends StatelessWidget {
 
     return GestureDetector(
       // TODO: действия с сообщением
-      onTap: () => print("test"),
+      onTap: () => Haptics.tap(),
       child: Padding(
         padding: EdgeInsets.only(
           left: isMe ? 12 : 12,

lib/main.dart

@@ -11,6 +11,7 @@ import 'backend/modules/contacts.dart';
 import 'backend/modules/messages.dart';
 import 'core/storage/app_database.dart';
 import 'core/storage/token_storage.dart';
+import 'core/utils/haptics.dart';
 import 'core/protocol/packet.dart';
 import 'frontend/debug/fps_overlay_layer.dart';
 import 'frontend/screens/auth/login_screen.dart';
@@ -44,6 +45,8 @@ void main() async {
   await api.connect();
   final initialLocale = await _loadInitialLocale();
 
+  await Haptics.load();
+
   final prefs = await SharedPreferences.getInstance();
   final initialFpsOverlay = prefs.getBool('dev_fps_overlay') ?? false;
   runApp(