Initial commit: imajViewer Flutter Linux image viewer

lib/shortcuts/app_shortcuts.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:window_manager/window_manager.dart';
+import '../services/image_manager.dart';
+import '../services/file_handler.dart';
+
+class AppShortcuts extends StatelessWidget {
+  final Widget child;
+
+  const AppShortcuts({super.key, required this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    return CallbackShortcuts(
+      bindings: {
+        // Navigate images
+        const SingleActivator(LogicalKeyboardKey.arrowLeft): () {
+          ImageManager.instance.previousImage();
+        },
+        const SingleActivator(LogicalKeyboardKey.arrowRight): () {
+          ImageManager.instance.nextImage();
+        },
+
+        // Open file dialog
+        const SingleActivator(
+          LogicalKeyboardKey.keyO,
+          control: true,
+        ): () {
+          FileHandler.openFileDialog();
+        },
+
+        // Fullscreen toggle
+        const SingleActivator(LogicalKeyboardKey.f11): () async {
+          final isFullscreen = await windowManager.isFullScreen();
+          await windowManager.setFullScreen(!isFullscreen);
+        },
+
+        // Exit fullscreen
+        const SingleActivator(LogicalKeyboardKey.escape): () async {
+          final isFullscreen = await windowManager.isFullScreen();
+          if (isFullscreen) {
+            await windowManager.setFullScreen(false);
+          }
+        },
+
+        // Quit
+        const SingleActivator(
+          LogicalKeyboardKey.keyQ,
+          control: true,
+        ): () {
+          windowManager.close();
+        },
+      },
+      child: Focus(
+        autofocus: true,
+        child: child,
+      ),
+    );
+  }
+}