register method

@override Future<void> register(HotKey hotKey)

Implementation

@override
Future<void> register(HotKey hotKey) {
  final attempt = _PlatformRegistrationAttempt(hotKey);
  _attempts.add(attempt);
  return _enqueue(() async {
    try {
      if (attempt.cancelled) {
        throw PlatformException(
          code: 'registration_cancelled',
          message: 'Hotkey registration was cancelled.',
        );
      }
      final accelerator = hotKeyAccelerator(hotKey);
      final previous = _hotKeys[hotKey.identifier];
      final registration =
          _accelerators[accelerator] ?? _backend.register(hotKey);
      final id = registration is Future<int>
          ? await registration
          : registration;
      _accelerators[accelerator] = id;
      _hotKeys[hotKey.identifier] = (hotKey, id, accelerator);
      if (previous != null) {
        try {
          _release(previous);
        } catch (_) {
          _hotKeys[hotKey.identifier] = previous;
          if (id != previous.$2 &&
              !_hotKeys.values.any((other) => other.$2 == id)) {
            _accelerators.remove(accelerator);
            try {
              _backend.unregister(id);
            } catch (_) {
              // Backend ownership survives until unregisterAll can retry.
            }
          }
          rethrow;
        }
      }
    } finally {
      _attempts.remove(attempt);
    }
  });
}