feat: add custom window controls for Linux and Windows

Add minimize, maximize, and close buttons to the app bar on non-macOS
platforms. On macOS, native traffic lights are preserved. Bump version
to 1.1.0.

Author: maskedsyntax

lib/screens/analytics_screen.dart

@@ -8,6 +8,7 @@ import 'package:flutter_heatmap_calendar/flutter_heatmap_calendar.dart';
 import 'package:window_manager/window_manager.dart';
 import '../providers/providers.dart';
 import '../models/models.dart';
+import '../widgets/window_controls.dart';
 
 class AnalyticsScreen extends ConsumerWidget {
   const AnalyticsScreen({super.key});
@@ -34,6 +35,7 @@ class AnalyticsScreen extends ConsumerWidget {
               backgroundColor: Colors.transparent,
               elevation: 0,
               title: Text('Analytics', style: TextStyle(color: theme.colorScheme.onSurface, fontWeight: FontWeight.bold, fontSize: 14)),
+              actions: const [WindowControls()],
             ),
           ),
         ),

lib/screens/journal_screen.dart

@@ -8,6 +8,7 @@ import 'package:window_manager/window_manager.dart';
 import '../providers/providers.dart';
 import '../models/models.dart';
 import '../database/db_helper.dart';
+import '../widgets/window_controls.dart';
 
 class JournalScreen extends ConsumerStatefulWidget {
   const JournalScreen({super.key});
@@ -201,7 +202,8 @@ class _JournalScreenState extends ConsumerState<JournalScreen> {
                     }
                   },
                 ),
-                const SizedBox(width: 12),
+                const SizedBox(width: 4),
+                const WindowControls(),
               ],
             ),
           ),

lib/screens/ocd_tracker_screen.dart

@@ -6,6 +6,7 @@ import 'package:line_icons/line_icons.dart';
 import 'package:window_manager/window_manager.dart';
 import '../models/models.dart';
 import '../providers/providers.dart';
+import '../widgets/window_controls.dart';
 
 class OcdTrackerScreen extends ConsumerStatefulWidget {
   const OcdTrackerScreen({super.key});
@@ -74,6 +75,7 @@ class _OcdTrackerScreenState extends ConsumerState<OcdTrackerScreen> {
                     ),
                   ),
                 ),
+                const WindowControls(),
               ],
             ),
           ),

lib/screens/settings_screen.dart

@@ -7,6 +7,7 @@ import 'package:line_icons/line_icons.dart';
 import 'package:window_manager/window_manager.dart';
 import '../database/db_helper.dart';
 import '../providers/providers.dart';
+import '../widgets/window_controls.dart';
 import '../main.dart';
 
 class SettingsScreen extends ConsumerWidget {
@@ -132,6 +133,7 @@ class SettingsScreen extends ConsumerWidget {
               backgroundColor: Colors.transparent,
               elevation: 0,
               title: Text('Settings', style: TextStyle(color: theme.colorScheme.onSurface, fontWeight: FontWeight.bold, fontSize: 14)),
+              actions: const [WindowControls()],
             ),
           ),
         ),

lib/widgets/window_controls.dart

@@ -0,0 +1,131 @@
+import 'dart:io';
+import 'package:flutter/material.dart';
+import 'package:window_manager/window_manager.dart';
+
+/// Custom window control buttons (minimize, maximize, close) for Linux and Windows.
+/// On macOS, returns an empty widget since native traffic lights are preserved.
+class WindowControls extends StatefulWidget {
+  const WindowControls({super.key});
+
+  @override
+  State<WindowControls> createState() => _WindowControlsState();
+}
+
+class _WindowControlsState extends State<WindowControls> {
+  bool _isMaximized = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _checkMaximized();
+  }
+
+  Future<void> _checkMaximized() async {
+    final maximized = await windowManager.isMaximized();
+    if (mounted) setState(() => _isMaximized = maximized);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (Platform.isMacOS) return const SizedBox.shrink();
+
+    final theme = Theme.of(context);
+    final color = theme.colorScheme.onSurface.withOpacity(0.6);
+    const size = 14.0;
+
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        _ControlButton(
+          icon: Icons.remove_rounded,
+          iconSize: size,
+          color: color,
+          hoverColor: theme.colorScheme.onSurface.withOpacity(0.08),
+          onTap: () => windowManager.minimize(),
+          tooltip: 'Minimize',
+        ),
+        _ControlButton(
+          icon: _isMaximized ? Icons.filter_none_rounded : Icons.crop_square_rounded,
+          iconSize: _isMaximized ? size - 2 : size,
+          color: color,
+          hoverColor: theme.colorScheme.onSurface.withOpacity(0.08),
+          onTap: () async {
+            if (_isMaximized) {
+              await windowManager.unmaximize();
+            } else {
+              await windowManager.maximize();
+            }
+            _checkMaximized();
+          },
+          tooltip: _isMaximized ? 'Restore' : 'Maximize',
+        ),
+        _ControlButton(
+          icon: Icons.close_rounded,
+          iconSize: size,
+          color: color,
+          hoverColor: Colors.redAccent.withOpacity(0.15),
+          hoverIconColor: Colors.redAccent,
+          onTap: () => windowManager.close(),
+          tooltip: 'Close',
+        ),
+        const SizedBox(width: 8),
+      ],
+    );
+  }
+}
+
+class _ControlButton extends StatefulWidget {
+  final IconData icon;
+  final double iconSize;
+  final Color color;
+  final Color hoverColor;
+  final Color? hoverIconColor;
+  final VoidCallback onTap;
+  final String tooltip;
+
+  const _ControlButton({
+    required this.icon,
+    required this.iconSize,
+    required this.color,
+    required this.hoverColor,
+    required this.onTap,
+    required this.tooltip,
+    this.hoverIconColor,
+  });
+
+  @override
+  State<_ControlButton> createState() => _ControlButtonState();
+}
+
+class _ControlButtonState extends State<_ControlButton> {
+  bool _isHovered = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return Tooltip(
+      message: widget.tooltip,
+      child: MouseRegion(
+        cursor: SystemMouseCursors.click,
+        onEnter: (_) => setState(() => _isHovered = true),
+        onExit: (_) => setState(() => _isHovered = false),
+        child: GestureDetector(
+          onTap: widget.onTap,
+          child: AnimatedContainer(
+            duration: const Duration(milliseconds: 150),
+            width: 32,
+            height: 32,
+            decoration: BoxDecoration(
+              color: _isHovered ? widget.hoverColor : Colors.transparent,
+              borderRadius: BorderRadius.circular(6),
+            ),
+            child: Icon(
+              widget.icon,
+              size: widget.iconSize,
+              color: _isHovered ? (widget.hoverIconColor ?? widget.color) : widget.color,
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.0.0+1
+version: 1.1.0+2
 
 environment:
   sdk: ^3.11.1