1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

use kanata_keyberon::key_code::KeyCode;

pub const MASK_KEYCODES: u16 = 0x03FF;
pub const MASK_MODDED: u16 = 0xFC00;

pub fn mod_mask_for_keycode(kc: KeyCode) -> u16 {
    use KeyCode::*;
    match kc {
        LShift | RShift => 0x8000,
        LCtrl | RCtrl => 0x4000,
        LAlt => 0x2000,
        RAlt => 0x1000,
        LGui | RGui => 0x0800,
        _ => 0,
    }
}

#[test]
fn keys_fit_within_mask() {
    use crate::keys::OsCode;
    assert!(MASK_KEYCODES >= u16::from(OsCode::KEY_MAX));
}