feat: libxkbcommon layouts
This commit is contained in:
galister
593
src/hid/mod.rs
Normal file
593
src/hid/mod.rs
Normal file
@@ -0,0 +1,593 @@
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use glam::Vec2;
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use idmap::{idmap, IdMap};
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use idmap_derive::IntegerId;
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use input_linux::{
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AbsoluteAxis, AbsoluteInfo, AbsoluteInfoSetup, EventKind, InputId, Key, RelativeAxis,
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UInputHandle,
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};
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use libc::{input_event, timeval};
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use once_cell::sync::Lazy;
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use std::mem::transmute;
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use std::{fs::File, sync::atomic::AtomicBool};
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use strum::{EnumIter, EnumString, IntoEnumIterator};
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use xkbcommon::xkb;
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#[cfg(feature = "wayland")]
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mod wayland;
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#[cfg(feature = "x11")]
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mod x11;
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pub static USE_UINPUT: AtomicBool = AtomicBool::new(true);
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pub fn initialize() -> Box<dyn HidProvider> {
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if !USE_UINPUT.load(std::sync::atomic::Ordering::Relaxed) {
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log::info!("Uinput disabled by user.");
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return Box::new(DummyProvider {});
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}
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if let Some(uinput) = UInputProvider::try_new() {
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log::info!("Initialized uinput.");
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return Box::new(uinput);
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}
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log::error!("Could not create uinput provider. Keyboard/Mouse input will not work!");
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log::error!("To check if you're in input group, run: id -nG");
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if let Ok(user) = std::env::var("USER") {
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log::error!(
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"To add yourself to the input group, run: sudo usermod -aG input {}",
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user
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);
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log::error!("After adding yourself to the input group, you will need to reboot.");
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}
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Box::new(DummyProvider {})
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}
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pub trait HidProvider {
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fn mouse_move(&mut self, pos: Vec2);
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fn send_button(&mut self, button: u16, down: bool);
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fn wheel(&mut self, delta: i32);
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fn set_modifiers(&mut self, mods: u8);
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fn send_key(&self, key: u16, down: bool);
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fn set_desktop_extent(&mut self, extent: Vec2);
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fn set_desktop_origin(&mut self, origin: Vec2);
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fn commit(&mut self);
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}
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struct MouseButtonAction {
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button: u16,
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down: bool,
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}
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#[derive(Default)]
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struct MouseAction {
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last_requested_pos: Option<Vec2>,
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pos: Option<Vec2>,
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button: Option<MouseButtonAction>,
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scroll: Option<i32>,
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}
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pub struct UInputProvider {
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handle: UInputHandle<File>,
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desktop_extent: Vec2,
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desktop_origin: Vec2,
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cur_modifiers: u8,
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current_action: MouseAction,
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}
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pub struct DummyProvider;
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pub const MOUSE_LEFT: u16 = 0x110;
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pub const MOUSE_RIGHT: u16 = 0x111;
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pub const MOUSE_MIDDLE: u16 = 0x112;
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const MOUSE_EXTENT: f32 = 32768.;
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const EV_SYN: u16 = 0x0;
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const EV_KEY: u16 = 0x1;
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const EV_REL: u16 = 0x2;
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const EV_ABS: u16 = 0x3;
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impl UInputProvider {
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fn try_new() -> Option<Self> {
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if let Ok(file) = File::create("/dev/uinput") {
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let handle = UInputHandle::new(file);
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let id = InputId {
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bustype: 0x03,
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vendor: 0x4711,
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product: 0x0829,
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version: 5,
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};
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let name = b"WlxOverlay-S Keyboard-Mouse Hybrid Thing\0";
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let abs_info = vec![
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AbsoluteInfoSetup {
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axis: input_linux::AbsoluteAxis::X,
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info: AbsoluteInfo {
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value: 0,
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minimum: 0,
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maximum: MOUSE_EXTENT as _,
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fuzz: 0,
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flat: 0,
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resolution: 10,
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},
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},
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AbsoluteInfoSetup {
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axis: input_linux::AbsoluteAxis::Y,
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info: AbsoluteInfo {
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value: 0,
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minimum: 0,
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maximum: MOUSE_EXTENT as _,
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fuzz: 0,
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flat: 0,
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resolution: 10,
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},
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},
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];
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if handle.set_evbit(EventKind::Key).is_err() {
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return None;
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}
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if handle.set_evbit(EventKind::Absolute).is_err() {
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return None;
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}
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if handle.set_evbit(EventKind::Relative).is_err() {
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return None;
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}
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for btn in MOUSE_LEFT..=MOUSE_MIDDLE {
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let key: Key = unsafe { transmute(btn) };
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if handle.set_keybit(key).is_err() {
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return None;
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}
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}
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for key in VirtualKey::iter() {
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let key: Key = unsafe { transmute((key as u16) - 8) };
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if handle.set_keybit(key).is_err() {
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return None;
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}
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}
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if handle.set_absbit(AbsoluteAxis::X).is_err() {
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return None;
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}
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if handle.set_absbit(AbsoluteAxis::Y).is_err() {
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return None;
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}
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if handle.set_relbit(RelativeAxis::Wheel).is_err() {
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return None;
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}
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if handle.create(&id, name, 0, &abs_info).is_ok() {
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return Some(UInputProvider {
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handle,
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desktop_extent: Vec2::ZERO,
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desktop_origin: Vec2::ZERO,
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current_action: Default::default(),
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cur_modifiers: 0,
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});
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}
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}
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None
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}
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fn send_button_internal(&self, button: u16, down: bool) {
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let time = get_time();
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let events = [
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new_event(time, EV_KEY, button, down as _),
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new_event(time, EV_SYN, 0, 0),
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];
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if let Err(res) = self.handle.write(&events) {
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log::error!("send_button: {}", res.to_string());
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}
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}
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fn mouse_move_internal(&mut self, pos: Vec2) {
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#[cfg(debug_assertions)]
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log::trace!("Mouse move: {:?}", pos);
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let pos = (pos - self.desktop_origin) * (MOUSE_EXTENT / self.desktop_extent);
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let time = get_time();
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let events = [
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new_event(time, EV_ABS, AbsoluteAxis::X as _, pos.x as i32),
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new_event(time, EV_ABS, AbsoluteAxis::Y as _, pos.y as i32),
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new_event(time, EV_SYN, 0, 0),
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];
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if let Err(res) = self.handle.write(&events) {
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log::error!("{}", res.to_string());
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}
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}
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fn wheel_internal(&self, delta: i32) {
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let time = get_time();
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let events = [
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new_event(time, EV_REL, RelativeAxis::Wheel as _, delta),
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new_event(time, EV_SYN, 0, 0),
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];
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if let Err(res) = self.handle.write(&events) {
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log::error!("wheel: {}", res.to_string());
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}
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}
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}
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impl HidProvider for UInputProvider {
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fn set_modifiers(&mut self, modifiers: u8) {
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let changed = self.cur_modifiers ^ modifiers;
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for i in 0..7 {
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let m = 1 << i;
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if changed & m != 0 {
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if let Some(vk) = MODS_TO_KEYS.get(m).into_iter().flatten().next() {
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self.send_key(*vk as u16, modifiers & m != 0);
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}
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}
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}
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self.cur_modifiers = modifiers;
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}
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fn send_key(&self, key: u16, down: bool) {
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let time = get_time();
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let events = [
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new_event(time, EV_KEY, key - 8, down as _),
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new_event(time, EV_SYN, 0, 0),
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];
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if let Err(res) = self.handle.write(&events) {
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log::error!("send_key: {}", res.to_string());
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}
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}
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fn set_desktop_extent(&mut self, extent: Vec2) {
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self.desktop_extent = extent;
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}
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fn set_desktop_origin(&mut self, origin: Vec2) {
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self.desktop_origin = origin;
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}
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fn mouse_move(&mut self, pos: Vec2) {
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if self.current_action.pos.is_none() {
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self.current_action.pos = Some(pos);
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}
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self.current_action.last_requested_pos = Some(pos);
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}
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fn send_button(&mut self, button: u16, down: bool) {
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if self.current_action.button.is_none() {
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self.current_action.button = Some(MouseButtonAction { button, down });
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self.current_action.pos = self.current_action.last_requested_pos;
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}
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}
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fn wheel(&mut self, delta: i32) {
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if self.current_action.scroll.is_none() {
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self.current_action.scroll = Some(delta);
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}
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}
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fn commit(&mut self) {
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if let Some(pos) = self.current_action.pos.take() {
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self.mouse_move_internal(pos);
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}
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if let Some(button) = self.current_action.button.take() {
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self.send_button_internal(button.button, button.down);
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}
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if let Some(scroll) = self.current_action.scroll.take() {
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self.wheel_internal(scroll);
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}
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}
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}
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impl HidProvider for DummyProvider {
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fn mouse_move(&mut self, _pos: Vec2) {}
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fn send_button(&mut self, _button: u16, _down: bool) {}
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fn wheel(&mut self, _delta: i32) {}
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fn set_modifiers(&mut self, _modifiers: u8) {}
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fn send_key(&self, _key: u16, _down: bool) {}
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fn set_desktop_extent(&mut self, _extent: Vec2) {}
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fn set_desktop_origin(&mut self, _origin: Vec2) {}
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fn commit(&mut self) {}
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}
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#[inline]
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fn get_time() -> timeval {
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let mut time = timeval {
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tv_sec: 0,
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tv_usec: 0,
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};
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unsafe { libc::gettimeofday(&mut time, std::ptr::null_mut()) };
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time
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}
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#[inline]
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fn new_event(time: timeval, type_: u16, code: u16, value: i32) -> input_event {
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input_event {
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time,
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type_,
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code,
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value,
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}
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}
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pub type KeyModifier = u8;
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pub const SHIFT: KeyModifier = 0x01;
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pub const CAPS_LOCK: KeyModifier = 0x02;
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pub const CTRL: KeyModifier = 0x04;
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pub const ALT: KeyModifier = 0x08;
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pub const NUM_LOCK: KeyModifier = 0x10;
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pub const SUPER: KeyModifier = 0x40;
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pub const META: KeyModifier = 0x80;
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#[allow(non_camel_case_types)]
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#[repr(u16)]
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#[derive(Debug, PartialEq, Clone, Copy, IntegerId, EnumString, EnumIter)]
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pub enum VirtualKey {
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Escape = 9,
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N1, // number row
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N2,
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N3,
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N4,
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N5,
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N6,
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N7,
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N8,
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N9,
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N0,
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Minus,
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Plus,
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BackSpace,
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Tab,
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Q,
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W,
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E,
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R,
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T,
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Y,
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U,
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I,
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O,
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P,
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Oem4, // [ {
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Oem6, // ] }
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Return,
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LCtrl,
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A,
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S,
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D,
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F,
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G,
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H,
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J,
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K,
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L,
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Oem1, // ; :
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Oem7, // ' "
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Oem3, // ` ~
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LShift,
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Oem5, // \ |
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Z,
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X,
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C,
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V,
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B,
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N,
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M,
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Comma, // , <
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Period, // . >
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Oem2, // / ?
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RShift,
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KP_Multiply,
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LAlt,
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Space,
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Caps,
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F1,
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F2,
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F3,
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F4,
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F5,
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F6,
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F7,
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F8,
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F9,
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F10,
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NumLock,
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Scroll,
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KP_7, // KeyPad
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KP_8,
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KP_9,
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KP_Subtract,
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KP_4,
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KP_5,
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KP_6,
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KP_Add,
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KP_1,
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KP_2,
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KP_3,
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KP_0,
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KP_Decimal,
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Oem102 = 94, // Optional key usually between LShift and Z
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F11,
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F12,
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AbntC1,
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Katakana,
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Hiragana,
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Henkan,
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Kana,
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Muhenkan,
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KP_Enter = 104,
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RCtrl,
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KP_Divide,
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Print,
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Meta, // Right Alt aka AltGr
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Home = 110,
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Up,
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Prior,
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Left,
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Right,
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End,
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Down,
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Next,
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Insert,
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Delete,
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XF86AudioMute = 121,
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XF86AudioLowerVolume,
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XF86AudioRaiseVolume,
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Pause = 127,
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AbntC2 = 129,
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Hangul,
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Hanja,
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LSuper = 133,
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RSuper,
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Menu,
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Help = 146,
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XF86MenuKB,
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XF86Sleep = 150,
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XF86Xfer = 155,
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XF86Launch1,
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XF86Launch2,
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XF86WWW,
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XF86Mail = 163,
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XF86Favorites,
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XF86MyComputer,
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XF86Back,
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XF86Forward,
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XF86AudioNext = 171,
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XF86AudioPlay,
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XF86AudioPrev,
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XF86AudioStop,
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XF86HomePage = 180,
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XF86Reload,
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F13 = 191,
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F14,
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F15,
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F16,
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F17,
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F18,
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F19,
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F20,
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F21,
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F22,
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F23,
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F24,
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Hyper = 207,
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XF86Launch3,
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XF86Launch4,
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XF86LaunchB,
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XF86Search = 225,
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}
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pub static KEYS_TO_MODS: Lazy<IdMap<VirtualKey, KeyModifier>> = Lazy::new(|| {
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idmap! {
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VirtualKey::LShift => SHIFT,
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VirtualKey::RShift => SHIFT,
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VirtualKey::Caps => CAPS_LOCK,
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VirtualKey::LCtrl => CTRL,
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VirtualKey::RCtrl => CTRL,
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VirtualKey::LAlt => ALT,
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VirtualKey::NumLock => NUM_LOCK,
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VirtualKey::LSuper => SUPER,
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VirtualKey::RSuper => SUPER,
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VirtualKey::Meta => META,
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}
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});
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pub static MODS_TO_KEYS: Lazy<IdMap<KeyModifier, Vec<VirtualKey>>> = Lazy::new(|| {
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||||
idmap! {
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SHIFT => vec![VirtualKey::LShift, VirtualKey::RShift],
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CAPS_LOCK => vec![VirtualKey::Caps],
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||||
CTRL => vec![VirtualKey::LCtrl, VirtualKey::RCtrl],
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ALT => vec![VirtualKey::LAlt],
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NUM_LOCK => vec![VirtualKey::NumLock],
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SUPER => vec![VirtualKey::LSuper, VirtualKey::RSuper],
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META => vec![VirtualKey::Meta],
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}
|
||||
});
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||||
|
||||
pub enum KeyType {
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Symbol,
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||||
NumPad,
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||||
Other,
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||||
}
|
||||
|
||||
macro_rules! key_between {
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||||
($key:expr, $start:expr, $end:expr) => {
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||||
$key as u32 >= $start as u32 && $key as u32 <= $end as u32
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||||
};
|
||||
}
|
||||
|
||||
macro_rules! key_is {
|
||||
($key:expr, $val:expr) => {
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||||
$key as u32 == $val as u32
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||||
};
|
||||
}
|
||||
|
||||
pub fn get_key_type(key: VirtualKey) -> KeyType {
|
||||
if key_between!(key, VirtualKey::N1, VirtualKey::Plus)
|
||||
|| key_between!(key, VirtualKey::Q, VirtualKey::Oem6)
|
||||
|| key_between!(key, VirtualKey::A, VirtualKey::Oem3)
|
||||
|| key_between!(key, VirtualKey::Oem5, VirtualKey::Oem2)
|
||||
|| key_is!(key, VirtualKey::Oem102)
|
||||
{
|
||||
KeyType::Symbol
|
||||
} else if key_between!(key, VirtualKey::KP_7, VirtualKey::KP_0)
|
||||
&& !key_is!(key, VirtualKey::KP_Subtract)
|
||||
&& !key_is!(key, VirtualKey::KP_Add)
|
||||
{
|
||||
KeyType::NumPad
|
||||
} else {
|
||||
KeyType::Other
|
||||
}
|
||||
}
|
||||
|
||||
pub struct XkbKeymap {
|
||||
pub context: xkb::Context,
|
||||
pub keymap: xkb::Keymap,
|
||||
}
|
||||
|
||||
impl XkbKeymap {
|
||||
pub fn label_for_key(&self, key: VirtualKey, modifier: KeyModifier) -> String {
|
||||
let mut state = xkb::State::new(&self.keymap);
|
||||
if modifier > 0 {
|
||||
if let Some(mod_key) = MODS_TO_KEYS.get(modifier) {
|
||||
state.update_key(
|
||||
xkb::Keycode::from(mod_key[0] as u32),
|
||||
xkb::KeyDirection::Down,
|
||||
);
|
||||
}
|
||||
}
|
||||
state.key_get_utf8(xkb::Keycode::from(key as u32))
|
||||
}
|
||||
|
||||
pub fn has_altgr(&self) -> bool {
|
||||
let state0 = xkb::State::new(&self.keymap);
|
||||
let mut state1 = xkb::State::new(&self.keymap);
|
||||
state1.update_key(
|
||||
xkb::Keycode::from(VirtualKey::Meta as u32),
|
||||
xkb::KeyDirection::Down,
|
||||
);
|
||||
|
||||
for key in [
|
||||
VirtualKey::N0,
|
||||
VirtualKey::N1,
|
||||
VirtualKey::N2,
|
||||
VirtualKey::N3,
|
||||
VirtualKey::N4,
|
||||
VirtualKey::N5,
|
||||
VirtualKey::N6,
|
||||
VirtualKey::N7,
|
||||
VirtualKey::N8,
|
||||
VirtualKey::N9,
|
||||
] {
|
||||
let sym0 = state0.key_get_one_sym(xkb::Keycode::from(key as u32));
|
||||
let sym1 = state1.key_get_one_sym(xkb::Keycode::from(key as u32));
|
||||
if sym0 != sym1 {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
false
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "wayland")]
|
||||
pub use wayland::get_keymap_wl;
|
||||
|
||||
#[cfg(not(feature = "wayland"))]
|
||||
pub fn get_keymap_wl() -> anyhow::Result<XkbKeymap> {}
|
||||
|
||||
#[cfg(feature = "x11")]
|
||||
pub use x11::get_keymap_x11;
|
||||
|
||||
#[cfg(not(feature = "x11"))]
|
||||
pub fn get_keymap_x11() -> anyhow::Result<XkbKeymap> {}
|
||||
Reference in New Issue
Block a user