1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// This is a translation of the xkbcommon quick start guide:
// https://xkbcommon.org/doc/current/md_doc_quick_guide.html
extern crate evdev;
extern crate xkbcommon;
use xkbcommon::xkb;
// evdev constants:
const KEYCODE_OFFSET: u16 = 8;
const KEY_STATE_RELEASE: i32 = 0;
const KEY_STATE_REPEAT: i32 = 2;
fn main() {
// Open evdev device
let mut device = evdev::Device::open(
std::env::args()
.nth(1)
.unwrap_or(String::from("/dev/input/event0")),
)
.unwrap();
// Create context
let context = xkb::Context::new(xkb::CONTEXT_NO_FLAGS);
// Load keymap informations
let keymap = xkb::Keymap::new_from_names(
&context,
"", // rules
"pc105", // model
"is", // layout
"dvorak", // variant
Some("terminate:ctrl_alt_bksp".to_string()), // options
xkb::COMPILE_NO_FLAGS,
)
.unwrap();
// Create the state tracker
let mut state = xkb::State::new(&keymap);
loop {
for event in device.fetch_events().unwrap() {
if let evdev::InputEventKind::Key(keycode) = event.kind() {
let keycode = (keycode.0 + KEYCODE_OFFSET).into();
// Ask the keymap what to do with key-repeat event
if event.value() == KEY_STATE_REPEAT && !keymap.key_repeats(keycode) {
continue;
}
print!("keycode {:?} ", keycode);
// Get keysym
let keysym = state.key_get_one_sym(keycode);
print!("keysym: {} ", xkb::keysym_get_name(keysym));
// Update state
let _changes = if event.value() == KEY_STATE_RELEASE {
state.update_key(keycode, xkb::KeyDirection::Up)
} else {
state.update_key(keycode, xkb::KeyDirection::Down)
};
// Inspect state
if state.mod_name_is_active(xkb::MOD_NAME_CTRL, xkb::STATE_MODS_EFFECTIVE) {
print!("Control ");
}
if state.led_name_is_active(xkb::LED_NAME_NUM) {
print!("NumLockLED");
}
println!();
}
}
}
}
|
