MacOS not sending ReceivedCharacter event #1267
Description
It has been reported to Alacritty that on macOS, specific key combinations do not always emit ReceivedCharacter events on macOS.
The specific example was Ctrl+Q and it appears that while the first press does not emit an event, the second does.
This has been reported to Alacritty in alacritty/alacritty#1359 and here's an excerpt from the relevant event log (full log can be found in the issue):
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 62, state: Pressed, virtual_keycode: Some(RControl), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 12, state: Pressed, virtual_keycode: Some(Q), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 12, state: Released, virtual_keycode: Some(Q), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 62, state: Released, virtual_keycode: Some(RControl), modifiers: ModifiersState { shift: false, ctrl: false, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 62, state: Pressed, virtual_keycode: Some(RControl), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 12, state: Pressed, virtual_keycode: Some(Q), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: ReceivedCharacter('\u{11}') }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 12, state: Released, virtual_keycode: Some(Q), modifiers: ModifiersState { shift: false, ctrl: true, alt: false, logo: false } } } }
[2019-11-08 10:53] [INFO] glutin event: WindowEvent { window_id: WindowId(Id(140382647460256)), event: KeyboardInput { device_id: DeviceId(DeviceId), input: KeyboardInput { scancode: 62, state: Released, virtual_keycode: Some(RControl), modifiers: ModifiersState { shift: false, ctrl: false, alt: false, logo: false } } } }