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286 | use evdev::{AttributeSet, Device, KeyCode, enumerate, EventType, uinput::VirtualDevice};
use std::{env::{var,args},fs::{read_to_string,canonicalize}, path::PathBuf, process::{exit,Command, Stdio}, sync::{Arc, OnceLock}, thread};
const DELAY :u64 = 25; // 25ms
const CONFIG :&str = "~/.config/pind/pindrc";
static BINDINGS: OnceLock<Arc<Vec<(AttributeSet<KeyCode>, String)>>> = OnceLock::new();
fn get_bindings() -> Arc<Vec<(AttributeSet<KeyCode>, String)>>
{
Arc::clone(BINDINGS.get_or_init(|| Arc::new(load_config(CONFIG))))
}
fn error(title: &str, message: &str) -> !
{
eprintln!("[\x1b[33mE\x1b[0m] \x1b[31m{title}:\x1b[0m {message}.");
exit(1)
}
fn run(command: &str, user: &str)
{
let shell = var("SHELL").unwrap_or_else(|_| "sh".into());
if let Err(e) = Command::new("runuser")
.args(["-u", user, "--", &shell, "-c", command])
.stdin(Stdio::null())
.stdout(Stdio::null())
.stderr(Stdio::null())
.spawn() { error("Command execution failed", &e.to_string()) }
}
fn key_to_keycode(input: &str) -> AttributeSet<KeyCode>
{
let mut attribute_set = AttributeSet::new();
for key in input.replace(' ',"").split('+') {
match key.to_lowercase().as_str(){
"meta_left" | "meta" => attribute_set.insert(KeyCode::KEY_LEFTMETA),
"ctrl_left" | "ctrl" => attribute_set.insert(KeyCode::KEY_LEFTCTRL),
"shift_left" | "shift" => attribute_set.insert(KeyCode::KEY_LEFTSHIFT),
"alt_left" | "alt" => attribute_set.insert(KeyCode::KEY_LEFTALT),
"back_slash" | "\\" => attribute_set.insert(KeyCode::KEY_BACKSLASH),
"slash" | "/" => attribute_set.insert(KeyCode::KEY_SLASH),
"enter" | "return" => attribute_set.insert(KeyCode::KEY_ENTER),
"ctrl_right" => attribute_set.insert(KeyCode::KEY_RIGHTCTRL),
"shift_right" => attribute_set.insert(KeyCode::KEY_RIGHTSHIFT),
"meta_right" => attribute_set.insert(KeyCode::KEY_RIGHTMETA),
"alt_right" => attribute_set.insert(KeyCode::KEY_RIGHTALT),
"capslock" => attribute_set.insert(KeyCode::KEY_CAPSLOCK),
"tab" => attribute_set.insert(KeyCode::KEY_TAB),
"0" => attribute_set.insert(KeyCode::KEY_0),
"1" => attribute_set.insert(KeyCode::KEY_1),
"2" => attribute_set.insert(KeyCode::KEY_2),
"3" => attribute_set.insert(KeyCode::KEY_3),
"4" => attribute_set.insert(KeyCode::KEY_4),
"5" => attribute_set.insert(KeyCode::KEY_5),
"6" => attribute_set.insert(KeyCode::KEY_6),
"7" => attribute_set.insert(KeyCode::KEY_7),
"8" => attribute_set.insert(KeyCode::KEY_8),
"9" => attribute_set.insert(KeyCode::KEY_9),
"a" => attribute_set.insert(KeyCode::KEY_A),
"b" => attribute_set.insert(KeyCode::KEY_B),
"c" => attribute_set.insert(KeyCode::KEY_C),
"d" => attribute_set.insert(KeyCode::KEY_D),
"e" => attribute_set.insert(KeyCode::KEY_E),
"f" => attribute_set.insert(KeyCode::KEY_F),
"g" => attribute_set.insert(KeyCode::KEY_G),
"h" => attribute_set.insert(KeyCode::KEY_H),
"i" => attribute_set.insert(KeyCode::KEY_I),
"j" => attribute_set.insert(KeyCode::KEY_J),
"k" => attribute_set.insert(KeyCode::KEY_K),
"l" => attribute_set.insert(KeyCode::KEY_L),
"m" => attribute_set.insert(KeyCode::KEY_M),
"n" => attribute_set.insert(KeyCode::KEY_N),
"o" => attribute_set.insert(KeyCode::KEY_O),
"p" => attribute_set.insert(KeyCode::KEY_P),
"q" => attribute_set.insert(KeyCode::KEY_Q),
"r" => attribute_set.insert(KeyCode::KEY_R),
"s" => attribute_set.insert(KeyCode::KEY_S),
"t" => attribute_set.insert(KeyCode::KEY_T),
"u" => attribute_set.insert(KeyCode::KEY_U),
"v" => attribute_set.insert(KeyCode::KEY_V),
"w" => attribute_set.insert(KeyCode::KEY_W),
"x" => attribute_set.insert(KeyCode::KEY_X),
"y" => attribute_set.insert(KeyCode::KEY_Y),
"z" => attribute_set.insert(KeyCode::KEY_Z),
"up" => attribute_set.insert(KeyCode::KEY_UP),
"down" => attribute_set.insert(KeyCode::KEY_DOWN),
"right" => attribute_set.insert(KeyCode::KEY_RIGHT),
"left" => attribute_set.insert(KeyCode::KEY_LEFT),
"dot" | "." => attribute_set.insert(KeyCode::KEY_DOT),
"comma" | "," => attribute_set.insert(KeyCode::KEY_COMMA),
"semicolon" | ";" => attribute_set.insert(KeyCode::KEY_SEMICOLON),
"apostrophe" | "\"" => attribute_set.insert(KeyCode::KEY_APOSTROPHE),
"leftbrace" | "[" => attribute_set.insert(KeyCode::KEY_LEFTBRACE),
"rightbrace" | "]" => attribute_set.insert(KeyCode::KEY_RIGHTBRACE),
"numlock" => attribute_set.insert(KeyCode::KEY_NUMLOCK),
"scroll_lock" => attribute_set.insert(KeyCode::KEY_SCROLLLOCK),
"minus" | "-" => attribute_set.insert(KeyCode::KEY_MINUS),
"equal" | "=" => attribute_set.insert(KeyCode::KEY_EQUAL),
"plus" => attribute_set.insert(KeyCode::KEY_KPPLUS),
"grave" | "`" => attribute_set.insert(KeyCode::KEY_GRAVE),
"space" => attribute_set.insert(KeyCode::KEY_SPACE),
"esc" => attribute_set.insert(KeyCode::KEY_ESC),
"f1" => attribute_set.insert(KeyCode::KEY_F1),
"f2" => attribute_set.insert(KeyCode::KEY_F2),
"f3" => attribute_set.insert(KeyCode::KEY_F3),
"f4" => attribute_set.insert(KeyCode::KEY_F4),
"f5" => attribute_set.insert(KeyCode::KEY_F5),
"f6" => attribute_set.insert(KeyCode::KEY_F6),
"f7" => attribute_set.insert(KeyCode::KEY_F7),
"f8" => attribute_set.insert(KeyCode::KEY_F8),
"f9" => attribute_set.insert(KeyCode::KEY_F9),
"f10" => attribute_set.insert(KeyCode::KEY_F10),
"f11" => attribute_set.insert(KeyCode::KEY_F11),
"f12" => attribute_set.insert(KeyCode::KEY_F12),
"kp0" | "keypad_0" => attribute_set.insert(KeyCode::KEY_KP0),
"kp1" | "keypad_1" => attribute_set.insert(KeyCode::KEY_KP1),
"kp2" | "keypad_2" => attribute_set.insert(KeyCode::KEY_KP2),
"kp3" | "keypad_3" => attribute_set.insert(KeyCode::KEY_KP3),
"kp4" | "keypad_4" => attribute_set.insert(KeyCode::KEY_KP4),
"kp5" | "keypad_5" => attribute_set.insert(KeyCode::KEY_KP5),
"kp6" | "keypad_6" => attribute_set.insert(KeyCode::KEY_KP6),
"kp7" | "keypad_7" => attribute_set.insert(KeyCode::KEY_KP7),
"kp8" | "keypad_8" => attribute_set.insert(KeyCode::KEY_KP8),
"kp9" | "keypad_9" => attribute_set.insert(KeyCode::KEY_KP9),
"kpdot" | "keypad_dot" => attribute_set.insert(KeyCode::KEY_KPDOT),
"kpplus" | "keypad_plus" => attribute_set.insert(KeyCode::KEY_KPPLUS),
"kpminus" | "keypad_minus" => attribute_set.insert(KeyCode::KEY_KPMINUS),
_ => {error("Key", &format!("key {} is not exists",key))},
}
}
attribute_set
}
fn keyboards() -> Vec<PathBuf>
{
enumerate().filter_map(|(path, dev)| {
dev.supported_keys()
.filter(|keys| keys.contains(KeyCode::KEY_A) && keys.contains(KeyCode::KEY_ENTER))
.map(|_| path)
})
.collect()
}
fn load_config(config: &str) -> Vec<(AttributeSet<KeyCode>, String)>
{
let content = read_to_string(canonicalize(PathBuf::from(config.replace("~",&var("HOME").unwrap_or_default()))).unwrap_or_else(|e|{error("config",&e.to_string())}))
.unwrap_or_else(|e| error("Config file read failed", &e.to_string()));
content.lines()
.filter(|line| !line.starts_with('#') && !line.trim().is_empty())
.filter_map(|line| {
let mut parts = line.splitn(2, "=>");
let key = parts.next()?.trim();
let cmd = parts.next()?.trim();
Some((key_to_keycode(key), cmd.to_string()))
})
.collect()
}
fn read_keys(kc: &[(AttributeSet<KeyCode>, String)], kbs: PathBuf, delay: u64, user: String)
{
let mut state = vec![(0, 0); kc.len()];
let mut tick = 1;
let init = (320 + delay - 1) / delay;
let mut device = match Device::open(&kbs) {
Ok(dev) => dev,
Err(_) => return, // Device no longer exists, exit thread
};
// Create a virtual device to forward non-shortcut keys
// First, get all supported keys from the physical device to set up the virtual device properly
let supported_keys = match device.supported_keys() {
Some(keys) => keys,
_ => return eprintln!("Failed to get supported keys from device")
};
let mut virtual_device = match VirtualDevice::builder() {
Ok(builder) => builder,
Err(e) => return eprintln!("Failed to create virtual device builder: {e}")
};
virtual_device = match virtual_device.name("pind-virtual-keyboard").with_keys(&supported_keys) {
Ok(builder) => builder,
Err(e) => return eprintln!("Failed to set up virtual device with keys: {e}")
};
let mut virtual_device = match virtual_device.build() {
Ok(dev) => dev,
Err(e) => return eprintln!("Failed to build virtual device: {e}")
};
// Grab the physical device to capture all events
if let Err(e) = device.grab() {
return eprintln!("Failed to grab device: {e}");
}
loop {
// Collect events
let events: Vec<_> = match device.fetch_events() {
Ok(events_iter) => events_iter.collect(),
Err(_) => break, // Device no longer exists
};
let mut events_to_forward = Vec::new();
let current_state = match device.get_key_state() {
Ok(state) => state,
Err(_) => break, // Device no longer exists
};
// Check if any shortcut is currently active
let mut active_shortcut = false;
for (combo, _) in kc {
// Check if all keys in combo are pressed
if combo.iter().all(|k| current_state.contains(k)) {
active_shortcut = true;
break;
}
}
for event in events {
if event.event_type() == EventType::KEY {
let key_code = KeyCode::new(event.code());
// Check if this key is part of any shortcut
let mut is_shortcut_key = false;
for (combo, _) in kc {
if combo.contains(key_code) {
is_shortcut_key = true;
break;
}
}
if is_shortcut_key && active_shortcut {
for (i, (combo, cmd)) in kc.iter().enumerate() {
// Check if all keys in combo are pressed
let pressed = combo.iter().all(|k| current_state.contains(k));
let (since, last) = &mut state[i];
if pressed {
if *since == 0 {
*since = tick;
*last = tick;
} else if tick - *since >= init && tick > *last {
*last = tick;
}
run(cmd, &user);
} else {
*since = 0;
}
}
} else {
events_to_forward.push(event);
}
} else {
events_to_forward.push(event);
}
}
if !events_to_forward.is_empty() && let Err(e) = virtual_device.emit(&events_to_forward) {
eprintln!("Failed to emit events: {e}");
}
thread::sleep(std::time::Duration::from_millis(delay));
tick = tick.wrapping_add(1);
}
}
fn main()
{
let user = args().nth(1).unwrap_or_else(|| error("USER", "Username argument required"));
let bindings = get_bindings();
if bindings.is_empty() { error("binding", "No key bindings detected"); }
let keyboards = keyboards();
if keyboards.is_empty() { error("Hardware", "No keyboards detected"); }
let handles: Vec<_> = keyboards.into_iter().map(|keyboard| {
let bindings_ref = Arc::clone(&bindings);
let user_ref = user.clone();
thread::spawn(move || read_keys(&bindings_ref, keyboard, DELAY, user_ref))
}).collect();
for handle in handles {
handle.join().unwrap_or_else(|_| error("Thread", "Keyboard thread panicked"));
}
}
|
