private void AppShell_KeyDown()

in ContosoApp/AppShell.xaml.cs [80:119]

• 37 lines of code
• 19 McCabe index (conditional complexity)

        private void AppShell_KeyDown(object sender, KeyRoutedEventArgs e)
        {
            FocusNavigationDirection direction = FocusNavigationDirection.None;
            switch (e.Key)
            {
                case VirtualKey.Left:
                case VirtualKey.GamepadDPadLeft:
                case VirtualKey.GamepadLeftThumbstickLeft:
                case VirtualKey.NavigationLeft:
                    direction = FocusNavigationDirection.Left;
                    break;
                case VirtualKey.Right:
                case VirtualKey.GamepadDPadRight:
                case VirtualKey.GamepadLeftThumbstickRight:
                case VirtualKey.NavigationRight:
                    direction = FocusNavigationDirection.Right;
                    break;

                case VirtualKey.Up:
                case VirtualKey.GamepadDPadUp:
                case VirtualKey.GamepadLeftThumbstickUp:
                case VirtualKey.NavigationUp:
                    direction = FocusNavigationDirection.Up;
                    break;

                case VirtualKey.Down:
                case VirtualKey.GamepadDPadDown:
                case VirtualKey.GamepadLeftThumbstickDown:
                case VirtualKey.NavigationDown:
                    direction = FocusNavigationDirection.Down;
                    break;
            }

            if (direction != FocusNavigationDirection.None &&
                FocusManager.FindNextFocusableElement(direction) is Control control)
            {
                control.Focus(FocusState.Keyboard);
                e.Handled = true;
            }
        }