import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Shift is broken',
      shortcuts: const {
        SingleActivator(
          LogicalKeyboardKey.keyA,
          control: true,
        ): PrintIntent(false),
        SingleActivator(
          LogicalKeyboardKey.keyA,
          shift: true,
        ): PrintIntent(true),
      },
      actions: {
        PrintIntent: CallbackAction<PrintIntent>(onInvoke: (intent) {
          if (intent.shift) {
            // This is never called.
            print('Shift is working');
            return;
          }
          print('Control is working.');
        }),
      },
      builder: (context, child) {
        return const Focus(
          autofocus: true,
          child: Placeholder(),
        );
      },
    );
  }
}

class PrintIntent extends Intent {
  const PrintIntent(this.shift);

  final bool shift;
}