d1a5f36606
XGrabKeyboard on the same display as XRecord breaks event delivery. XRecord captures events globally without any grab needed. Also: use XPending() before select() to check Xlib internal buffer, and add XFlush before XRecordProcessReplies after select().
1322 lines
47 KiB
Rust
1322 lines
47 KiB
Rust
use std::collections::HashSet;
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use std::fs;
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use std::path::PathBuf;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::{Arc, Mutex};
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use std::thread;
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use std::time::Duration;
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use vietc_engine::{Engine, EngineEvent, InputMethod};
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/// Pin current thread to performance cores (0-3) and boost priority.
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/// Inspired by VMK's approach to minimize input latency on Intel hybrid CPUs.
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fn boost_thread_priority() {
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unsafe {
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// Set nice value to -10 (higher priority than normal)
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libc::setpriority(libc::PRIO_PROCESS, 0, -10);
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// Try to pin to P-cores (cores 0-3 on Intel hybrid)
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#[cfg(target_os = "linux")]
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{
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let mut cpuset: libc::cpu_set_t = std::mem::zeroed();
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// Pin to cores 0-3 (P-cores on Intel 12th gen+)
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for i in 0..4 {
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libc::CPU_SET(i, &mut cpuset);
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}
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let ret = libc::sched_setaffinity(0, std::mem::size_of::<libc::cpu_set_t>(), &cpuset);
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if ret == 0 {
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eprintln!("[vietc] Pinned to P-cores 0-3, nice=-10");
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} else {
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eprintln!("[vietc] CPU pinning failed ({}), nice=-10 still set", ret);
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}
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}
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}
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}
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mod app_state;
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mod config;
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mod display;
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use app_state::AppStateManager;
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use config::Config;
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#[cfg(feature = "x11")]
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use vietc_protocol::x11_capture::X11Capture;
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#[cfg(feature = "x11")]
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use vietc_protocol::x11_inject::X11Injector;
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fn get_log_path() -> Option<PathBuf> {
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dirs::config_dir().map(|p| p.join("vietc").join("vietc.log"))
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}
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fn get_timestamp() -> String {
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if let Ok(n) = std::time::SystemTime::now().duration_since(std::time::SystemTime::UNIX_EPOCH) {
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let secs = n.as_secs();
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let millis = n.subsec_millis();
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unsafe {
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let t = secs as libc::time_t;
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let mut tm = std::mem::zeroed::<libc::tm>();
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if !libc::localtime_r(&t, &mut tm).is_null() {
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return format!(
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"{:04}-{:02}-{:02} {:02}:{:02}:{:02}.{:03}",
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tm.tm_year + 1900,
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tm.tm_mon + 1,
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tm.tm_mday,
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tm.tm_hour,
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tm.tm_min,
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tm.tm_sec,
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millis
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);
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}
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}
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}
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"".to_string()
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}
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fn log_info(msg: &str) {
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eprintln!("{}", msg);
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if let Some(log_path) = get_log_path() {
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if let Some(parent) = log_path.parent() {
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let _ = fs::create_dir_all(parent);
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}
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// Rotate log if it exceeds 10MB
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if let Ok(metadata) = fs::metadata(&log_path) {
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if metadata.len() > 10 * 1024 * 1024 {
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let backup_path = log_path.with_extension("log.old");
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let _ = fs::rename(&log_path, backup_path);
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}
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}
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if let Ok(mut file) = fs::OpenOptions::new()
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.create(true)
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.append(true)
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.open(&log_path)
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{
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use std::io::Write;
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let timestamp = get_timestamp();
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let _ = writeln!(file, "[{}] {}", timestamp, msg);
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}
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}
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}
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struct Daemon {
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engine: Engine,
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config: Config,
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config_path: PathBuf,
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config_modified: std::time::SystemTime,
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app_state: AppStateManager,
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engine_enabled: Arc<AtomicBool>,
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grab_enabled: bool,
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/// Backspace-Replay: all keystrokes in the current word being composed.
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/// On each keypress, we replay the entire history through a fresh engine
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/// to compute the correct screen output, eliminating state desync.
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keystroke_history: Vec<char>,
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/// What's currently displayed on screen for the current word.
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/// Used to calculate how many backspaces we need before retyping.
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screen_output: String,
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}
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impl Daemon {
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fn new(config: Config, config_path: PathBuf, engine_enabled: Arc<AtomicBool>) -> Self {
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let method = match config.input_method.as_str() {
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"vni" => InputMethod::Vni,
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_ => InputMethod::Telex,
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};
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let mut engine = Engine::new(method);
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engine.set_enabled(config.start_enabled);
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engine_enabled.store(config.start_enabled, Ordering::SeqCst);
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for (shortcut, expansion) in &config.macros {
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engine.add_macro(shortcut.clone(), expansion.clone());
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}
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let mut app_state = AppStateManager::new(
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config.app_state.english_apps.clone(),
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config.app_state.vietnamese_apps.clone(),
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config.app_state.bypass_apps.clone(),
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config.start_enabled,
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);
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app_state.load_overrides();
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let config_modified = fs::metadata(&config_path)
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.and_then(|m| m.modified())
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.unwrap_or(std::time::SystemTime::now());
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Self {
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grab_enabled: config.grab,
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engine,
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config,
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config_path,
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config_modified,
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app_state,
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engine_enabled,
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keystroke_history: Vec::new(),
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screen_output: String::new(),
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}
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}
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fn write_status(&self) {
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if let Some(parent) = self.config_path.parent() {
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let status_path = parent.join("status");
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let enabled = self.engine.is_enabled();
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self.engine_enabled.store(enabled, Ordering::SeqCst);
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let status_str = if enabled { "vn" } else { "en" };
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let _ = std::fs::write(status_path, status_str);
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}
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}
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fn sync_status_file(&mut self) {
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if let Some(parent) = self.config_path.parent() {
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let status_path = parent.join("status");
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if let Ok(content) = fs::read_to_string(&status_path) {
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let expect_enabled = content.trim() == "vn";
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if self.engine.is_enabled() != expect_enabled {
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log_info(&format!(
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"[vietc] Syncing enabled status from file: {}",
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expect_enabled
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));
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self.engine.set_enabled(expect_enabled);
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self.engine_enabled.store(expect_enabled, Ordering::SeqCst);
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}
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}
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}
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}
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fn reload_config(&mut self) -> bool {
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let modified = fs::metadata(&self.config_path)
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.and_then(|m| m.modified())
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.unwrap_or(std::time::SystemTime::now());
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if modified <= self.config_modified {
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return false;
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}
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log_info("[vietc] Config changed, reloading...");
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match Config::load_from(&self.config_path) {
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Ok(new_config) => {
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let method = match new_config.input_method.as_str() {
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"vni" => InputMethod::Vni,
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_ => InputMethod::Telex,
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};
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self.engine.set_method(method);
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self.engine.clear_macros();
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for (shortcut, expansion) in &new_config.macros {
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self.engine.add_macro(shortcut.clone(), expansion.clone());
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}
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self.app_state.update_lists(
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new_config.app_state.english_apps.clone(),
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new_config.app_state.vietnamese_apps.clone(),
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new_config.app_state.bypass_apps.clone(),
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);
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self.grab_enabled = new_config.grab;
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self.config = new_config;
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self.config_modified = modified;
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log_info("[vietc] Config reloaded successfully");
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true
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}
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Err(e) => {
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log_info(&format!("[vietc] Failed to reload config: {}", e));
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false
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}
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}
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}
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fn process_key(&mut self, ch: char) -> Vec<OutputCommand> {
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let mut commands = Vec::new();
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// Log each keystroke with character info
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log_info(&format!(
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"[vietc] process_key: U+{:04X} '{}' raw_buffer='{}' enabled={}",
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ch as u32,
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ch,
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self.engine.buffer(),
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self.engine.is_enabled()
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));
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if let Some(event) = self.engine.process_key(ch) {
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log_info(&format!(
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"[vietc] key='{}' buf='{}' -> {:?}",
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ch,
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self.engine.buffer(),
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event
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));
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match event {
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EngineEvent::Flush(text) => {
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log_info(&format!(
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"[vietc] Flush text len={}, bytes={} text={}",
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text.len(),
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text.len() * 3,
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text.escape_default()
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));
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commands.push(OutputCommand::Type(text));
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}
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EngineEvent::Insert(text) => {
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log_info(&format!(
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"[vietc] Insert text len={}, text={}",
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text.len(),
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text
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));
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commands.push(OutputCommand::Type(text));
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}
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EngineEvent::AutoRestore(word) => {
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let len = word.len();
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commands.push(OutputCommand::Backspace(len));
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commands.push(OutputCommand::Type(word));
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}
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EngineEvent::Replace { backspaces, insert } => {
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log_info(&format!(
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"[vietc] Replace BS={} text=\"{}\"",
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backspaces, insert
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));
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commands.push(OutputCommand::Backspace(backspaces));
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commands.push(OutputCommand::Type(insert));
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}
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EngineEvent::UndoTones {
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backspaces,
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restored,
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} => {
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log_info(&format!(
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"[vietc] UndoTones BS={} restored=\"{}\"",
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backspaces, restored
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));
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commands.push(OutputCommand::Backspace(backspaces));
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commands.push(OutputCommand::Type(restored));
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}
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EngineEvent::Paste(text) => {
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log_info(&format!(
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"[vietc] Paste raw text len={}, bytes={} text={}",
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text.len(),
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text.len() * 3,
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text.escape_default()
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));
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// Exit paste mode after pasting
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self.engine.exit_paste_mode();
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commands.push(OutputCommand::Type(text));
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}
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}
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} else {
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log_info(&format!(
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|
"[vietc] key='{}' -> (no event, buf='{}')",
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ch,
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self.engine.buffer()
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));
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}
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commands
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|
}
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|
|
fn toggle(&mut self) {
|
|
let new_state = self.app_state.toggle_current_app();
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log_info(&format!(
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"[vietc] toggle: engine.enabled={}",
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self.engine.is_enabled()
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|
));
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|
|
self.engine.set_enabled(new_state);
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self.write_status();
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|
|
// Reset engine buffer when enabling Vietnamese mode to clear stale state
|
|
if new_state {
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|
log_info(&format!(
|
|
"[vietc] reset() called - raw_buffer='{}' before reset",
|
|
self.engine.buffer()
|
|
));
|
|
self.engine.reset();
|
|
log_info(&format!(
|
|
"[vietc] after reset() - raw_buffer='{}'",
|
|
self.engine.buffer()
|
|
));
|
|
}
|
|
}
|
|
|
|
fn is_current_app_bypassed(&self) -> bool {
|
|
if !self.config.app_state.enabled {
|
|
return false;
|
|
}
|
|
self.app_state.is_current_app_bypassed()
|
|
}
|
|
|
|
/// Backspace-Replay: replay the entire keystroke history through a fresh
|
|
/// engine, compute what should be on screen, and return the commands
|
|
/// (backspaces to erase old + new text to type).
|
|
fn replay_and_inject(&mut self, ch: char) -> Vec<OutputCommand> {
|
|
let mut commands = Vec::new();
|
|
|
|
// Flush characters: commit current word, type the character, clear state
|
|
if is_flush_char(ch) {
|
|
if !self.screen_output.is_empty() {
|
|
let backspaces = self.screen_output.chars().count();
|
|
commands.push(OutputCommand::Backspace(backspaces));
|
|
commands.push(OutputCommand::Type(self.screen_output.clone()));
|
|
}
|
|
// Type the flush character itself
|
|
commands.push(OutputCommand::Type(ch.to_string()));
|
|
self.keystroke_history.clear();
|
|
self.screen_output.clear();
|
|
return commands;
|
|
}
|
|
|
|
// Add the new keystroke to history
|
|
self.keystroke_history.push(ch);
|
|
|
|
// Replay through fresh engine
|
|
let method = match self.config.input_method.as_str() {
|
|
"vni" => InputMethod::Vni,
|
|
_ => InputMethod::Telex,
|
|
};
|
|
let (new_output, did_flush) = Engine::replay_keystrokes(
|
|
method,
|
|
&self.config.macros,
|
|
&self.keystroke_history,
|
|
);
|
|
|
|
log_info(&format!(
|
|
"[vietc] replay: history_len={} old_screen='{}' new_output='{}' flush={}",
|
|
self.keystroke_history.len(),
|
|
self.screen_output,
|
|
new_output,
|
|
did_flush
|
|
));
|
|
|
|
if did_flush {
|
|
// Engine flushed a word — commit it and clear state
|
|
// The flush char (space/period/etc) was NOT in history, so we need to
|
|
// type whatever was on screen + the flush char
|
|
if !self.screen_output.is_empty() {
|
|
let backspaces = self.screen_output.chars().count();
|
|
commands.push(OutputCommand::Backspace(backspaces));
|
|
commands.push(OutputCommand::Type(self.screen_output.clone()));
|
|
}
|
|
self.keystroke_history.clear();
|
|
self.screen_output.clear();
|
|
return commands;
|
|
}
|
|
|
|
if new_output != self.screen_output {
|
|
let backspaces = self.screen_output.chars().count();
|
|
if backspaces > 0 {
|
|
commands.push(OutputCommand::Backspace(backspaces));
|
|
}
|
|
if !new_output.is_empty() {
|
|
commands.push(OutputCommand::Type(new_output.clone()));
|
|
}
|
|
self.screen_output = new_output;
|
|
}
|
|
|
|
commands
|
|
}
|
|
|
|
/// Backspace-Replay: pop from history, replay, and return commands to fix screen.
|
|
fn replay_backspace(&mut self) -> Vec<OutputCommand> {
|
|
let mut commands = Vec::new();
|
|
|
|
if self.keystroke_history.is_empty() {
|
|
// Nothing in history — just forward the backspace
|
|
commands.push(OutputCommand::Backspace(1));
|
|
return commands;
|
|
}
|
|
|
|
// Remove last keystroke from history
|
|
self.keystroke_history.pop();
|
|
|
|
// Replay through fresh engine
|
|
let method = match self.config.input_method.as_str() {
|
|
"vni" => InputMethod::Vni,
|
|
_ => InputMethod::Telex,
|
|
};
|
|
let (new_output, _) = if self.keystroke_history.is_empty() {
|
|
(String::new(), false)
|
|
} else {
|
|
Engine::replay_keystrokes(
|
|
method,
|
|
&self.config.macros,
|
|
&self.keystroke_history,
|
|
)
|
|
};
|
|
|
|
log_info(&format!(
|
|
"[vietc] replay_backspace: history_len={} old_screen='{}' new_output='{}'",
|
|
self.keystroke_history.len(),
|
|
self.screen_output,
|
|
new_output
|
|
));
|
|
|
|
// Calculate diff
|
|
let backspaces = self.screen_output.chars().count();
|
|
if backspaces > 0 {
|
|
commands.push(OutputCommand::Backspace(backspaces));
|
|
}
|
|
if !new_output.is_empty() {
|
|
commands.push(OutputCommand::Type(new_output.clone()));
|
|
}
|
|
self.screen_output = new_output;
|
|
|
|
commands
|
|
}
|
|
|
|
/// Reset the replay state (on flush, focus loss, modifier key, etc.)
|
|
fn replay_reset(&mut self) {
|
|
self.keystroke_history.clear();
|
|
self.screen_output.clear();
|
|
}
|
|
|
|
fn check_app_change_with(&mut self, new_class: String) {
|
|
if let Some(should_enable) = self.app_state.update_with_app(new_class) {
|
|
self.engine.set_enabled(should_enable);
|
|
self.write_status();
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
enum OutputCommand {
|
|
Type(String),
|
|
Backspace(usize),
|
|
}
|
|
|
|
/// Characters that flush the current word and start a new one.
|
|
fn is_flush_char(ch: char) -> bool {
|
|
matches!(ch, ' ' | '.' | ',' | '!' | '?' | ';' | ':' | '\t' | '\n')
|
|
}
|
|
|
|
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
|
let config_path = config::find_config_path();
|
|
let config = Config::load()?;
|
|
let engine_enabled = Arc::new(AtomicBool::new(config.start_enabled));
|
|
let mut daemon = Daemon::new(config, config_path.clone(), engine_enabled.clone());
|
|
|
|
// Write initial status file
|
|
daemon.write_status();
|
|
|
|
let display = display::detect_display_server();
|
|
let compositor = display::detect_compositor();
|
|
|
|
log_info(&format!("Viet+ Daemon v{}", env!("CARGO_PKG_VERSION")));
|
|
log_info(&format!(
|
|
"Display: {:?} ({})",
|
|
display,
|
|
compositor.unwrap_or_else(|| "unknown".into())
|
|
));
|
|
log_info(&format!("Input method: {:?}", daemon.config.input_method));
|
|
log_info(&format!(
|
|
"Toggle key: Ctrl+{}",
|
|
daemon.config.toggle_key.to_uppercase()
|
|
));
|
|
log_info(&format!(
|
|
"App memory: {}",
|
|
if daemon.config.app_state.enabled {
|
|
"ON"
|
|
} else {
|
|
"OFF"
|
|
}
|
|
));
|
|
|
|
// Boost thread priority for low-latency input (VMK technique)
|
|
boost_thread_priority();
|
|
|
|
// Spawn background monitor for active window, config changes, and status changes
|
|
let shared_active_window = Arc::new(Mutex::new(String::new()));
|
|
let config_changed = Arc::new(AtomicBool::new(false));
|
|
let status_changed = Arc::new(AtomicBool::new(false));
|
|
|
|
{
|
|
let shared_active_window = shared_active_window.clone();
|
|
let config_changed = config_changed.clone();
|
|
let config_path = config_path.clone();
|
|
let status_changed = status_changed.clone();
|
|
let engine_enabled = engine_enabled.clone();
|
|
let mut last_modified = fs::metadata(&config_path)
|
|
.and_then(|m| m.modified())
|
|
.unwrap_or(std::time::SystemTime::now());
|
|
|
|
thread::spawn(move || {
|
|
let mut window_check_counter = 0;
|
|
let status_path = config_path.parent().unwrap().join("status");
|
|
loop {
|
|
// Check active window class every 250ms
|
|
if let Some(class) = app_state::get_focused_window_class() {
|
|
let mut lock = shared_active_window.lock().unwrap();
|
|
if *lock != class {
|
|
*lock = class;
|
|
}
|
|
}
|
|
|
|
// Check status file content changes every 250ms
|
|
if let Ok(content) = fs::read_to_string(&status_path) {
|
|
let is_vn = content.trim() == "vn";
|
|
let current_enabled = engine_enabled.load(Ordering::SeqCst);
|
|
if is_vn != current_enabled {
|
|
status_changed.store(true, Ordering::SeqCst);
|
|
}
|
|
}
|
|
|
|
// Check config modified every 1.5 seconds (6 * 250ms)
|
|
window_check_counter += 1;
|
|
if window_check_counter >= 6 {
|
|
window_check_counter = 0;
|
|
if let Ok(metadata) = fs::metadata(&config_path) {
|
|
if let Ok(modified) = metadata.modified() {
|
|
if modified > last_modified {
|
|
last_modified = modified;
|
|
config_changed.store(true, Ordering::SeqCst);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
thread::sleep(Duration::from_millis(250));
|
|
}
|
|
});
|
|
}
|
|
|
|
#[cfg(feature = "x11")]
|
|
if display != display::DisplayServer::Wayland {
|
|
if let Some(mut capture) = X11Capture::new() {
|
|
// XRecord captures events globally — no grab needed for capture.
|
|
// XGrabKeyboard on the same display as XRecord breaks event delivery.
|
|
log_info("[vietc] X11 XRecord capture active — using X11 capture/injection");
|
|
return run_with_x11(
|
|
capture,
|
|
&mut daemon,
|
|
shared_active_window,
|
|
config_changed,
|
|
status_changed,
|
|
engine_enabled,
|
|
);
|
|
} else {
|
|
log_info("[vietc] X11 not available, falling back to evdev");
|
|
}
|
|
}
|
|
|
|
match open_keyboard_device() {
|
|
Ok((device, path)) => {
|
|
log_info(&format!("[vietc] Keyboard device: {}", path));
|
|
run_with_evdev(
|
|
device,
|
|
&mut daemon,
|
|
shared_active_window,
|
|
config_changed,
|
|
status_changed,
|
|
engine_enabled,
|
|
display,
|
|
)?;
|
|
}
|
|
Err(e) => {
|
|
log_info(&format!("[vietc] No keyboard device: {}", e));
|
|
log_info("[vietc] Running in stdin test mode");
|
|
run_stdin_mode(
|
|
&mut daemon,
|
|
shared_active_window,
|
|
config_changed,
|
|
status_changed,
|
|
engine_enabled,
|
|
display,
|
|
)?;
|
|
}
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn open_keyboard_device() -> Result<(evdev::Device, String), Box<dyn std::error::Error>> {
|
|
let dir = std::path::Path::new("/dev/input");
|
|
if !dir.exists() {
|
|
return Err("No /dev/input directory".into());
|
|
}
|
|
|
|
let mut permission_denied_count = 0u32;
|
|
let mut total_event_count = 0u32;
|
|
|
|
for entry in fs::read_dir(dir)? {
|
|
let entry = entry?;
|
|
let name = entry.file_name();
|
|
let name_str = name.to_string_lossy();
|
|
|
|
if name_str.starts_with("event") {
|
|
total_event_count += 1;
|
|
match evdev::Device::open(entry.path()) {
|
|
Ok(device) => {
|
|
let dev_name = device.name().unwrap_or("unknown").to_string();
|
|
// Skip our own uinput device, lid switches, power buttons, etc.
|
|
if dev_name.eq_ignore_ascii_case("vietc") {
|
|
continue;
|
|
}
|
|
if device
|
|
.supported_keys()
|
|
.is_some_and(|k| k.contains(evdev::Key::KEY_A))
|
|
{
|
|
return Ok((device, format!("{} ({})", entry.path().display(), dev_name)));
|
|
}
|
|
}
|
|
Err(e) => {
|
|
if e.raw_os_error() == Some(libc::EACCES) {
|
|
permission_denied_count += 1;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if permission_denied_count > 0 {
|
|
// Check if user is in the group but session hasn't refreshed
|
|
let in_group_db = std::process::Command::new("groups")
|
|
.output()
|
|
.map(|o| String::from_utf8_lossy(&o.stdout).contains("input"))
|
|
.unwrap_or(false);
|
|
|
|
if in_group_db {
|
|
Err(format!(
|
|
"Permission denied on {}/{} devices. Your user IS in the 'input' group, \
|
|
but your current session hasn't picked it up yet. \
|
|
Please LOG OUT and LOG BACK IN to activate group permissions.",
|
|
permission_denied_count, total_event_count
|
|
)
|
|
.into())
|
|
} else {
|
|
Err(format!(
|
|
"Permission denied on {}/{} devices. Add your user to the 'input' group: \
|
|
sudo usermod -aG input $USER && sudo usermod -aG vinput $USER, \
|
|
then log out and log back in.",
|
|
permission_denied_count, total_event_count
|
|
)
|
|
.into())
|
|
}
|
|
} else {
|
|
Err("No keyboard device found".into())
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "x11")]
|
|
fn run_with_x11(
|
|
mut capture: X11Capture,
|
|
daemon: &mut Daemon,
|
|
shared_active_window: Arc<Mutex<String>>,
|
|
config_changed: Arc<AtomicBool>,
|
|
status_changed: Arc<AtomicBool>,
|
|
_engine_enabled: Arc<AtomicBool>,
|
|
) -> Result<(), Box<dyn std::error::Error>> {
|
|
let injector: Box<dyn vietc_protocol::KeyInjector> = Box::new(X11Injector::new()?);
|
|
let mut last_active_window = String::new();
|
|
// Track physically-held keys so we only inject press on KeyPress
|
|
// and release on KeyRelease — without this, every KeyPress injects
|
|
// press+release immediately, breaking held-key combos (Ctrl+C, Alt+Tab…).
|
|
let mut pressed_keys: HashSet<u32> = HashSet::new();
|
|
|
|
eprintln!("[vietc] X11 event loop starting");
|
|
|
|
loop {
|
|
if status_changed.load(Ordering::SeqCst) {
|
|
daemon.sync_status_file();
|
|
status_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
if config_changed.load(Ordering::SeqCst) {
|
|
daemon.reload_config();
|
|
config_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
{
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
if active_window != last_active_window {
|
|
log_info(&format!("[vietc] Window changed: '{}' -> '{}'", last_active_window, active_window));
|
|
last_active_window = active_window.clone();
|
|
daemon.replay_reset();
|
|
}
|
|
}
|
|
|
|
if daemon.config.app_state.enabled {
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
daemon.check_app_change_with(active_window);
|
|
}
|
|
|
|
// Reset on focus loss (VMK technique)
|
|
if capture.focus_lost {
|
|
eprintln!("[vietc] Focus lost — resetting engine state");
|
|
daemon.replay_reset();
|
|
pressed_keys.clear();
|
|
capture.focus_lost = false;
|
|
}
|
|
|
|
// Wait for events with 100ms timeout, then re-grab if needed
|
|
let got_data = capture.wait_for_event(100);
|
|
let evt = capture.next_event();
|
|
if evt.is_none() {
|
|
static mut LOOP_COUNT: u64 = 0;
|
|
unsafe { LOOP_COUNT += 1; }
|
|
if got_data {
|
|
eprintln!("[vietc] DEBUG: select said data but no event in queue (loop={})", unsafe { LOOP_COUNT });
|
|
}
|
|
if unsafe { LOOP_COUNT } <= 3 || unsafe { LOOP_COUNT } % 50 == 0 {
|
|
eprintln!("[vietc] DEBUG: no event, grabbed={}, got_data={}", capture.is_grabbed(), got_data);
|
|
}
|
|
if !capture.is_grabbed() {
|
|
eprintln!("[vietc] Keyboard grab lost — re-grabbing");
|
|
capture.grab_keyboard();
|
|
}
|
|
continue;
|
|
}
|
|
let event = evt.unwrap();
|
|
eprintln!("[vietc] GOT KEY EVENT: keycode={} pressed={} ch={:?} state={}", event.keycode, event.pressed, event.ch, event.state);
|
|
|
|
// Process this event
|
|
{
|
|
if event.pressed {
|
|
// Skip autorepeat
|
|
if !pressed_keys.insert(event.keycode) {
|
|
continue;
|
|
}
|
|
|
|
// Toggle key: Ctrl+Space
|
|
if let Some(' ') = event.ch {
|
|
if (event.state & 4) != 0 {
|
|
pressed_keys.remove(&event.keycode);
|
|
daemon.replay_reset();
|
|
daemon.toggle();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Modifier or non-character key → forward press only, reset replay
|
|
if capture.is_modifier_pressed(event.state) || event.ch.is_none() {
|
|
daemon.replay_reset();
|
|
capture.without_grab(|| {
|
|
let _ = injector.send_key_event(event.keycode as u16, 1);
|
|
});
|
|
continue;
|
|
}
|
|
|
|
// Character key — use Backspace-Replay
|
|
if let Some(ch) = event.ch {
|
|
match ch {
|
|
'\x08' => {
|
|
// Backspace: replay pattern pops from history
|
|
let commands = daemon.replay_backspace();
|
|
pressed_keys.remove(&event.keycode);
|
|
capture.without_grab(|| {
|
|
execute_commands(&*injector, &commands, true);
|
|
});
|
|
// If history is empty and commands only had a bare backspace,
|
|
// we need to actually send it
|
|
if daemon.keystroke_history.is_empty() && commands.is_empty() {
|
|
capture.without_grab(|| {
|
|
let _ = injector.send_backspace();
|
|
});
|
|
}
|
|
}
|
|
'\n' => {
|
|
pressed_keys.remove(&event.keycode);
|
|
daemon.replay_reset();
|
|
capture.without_grab(|| {
|
|
let _ = injector.send_key_event(event.keycode as u16, 1);
|
|
let _ = injector.send_key_event(event.keycode as u16, 0);
|
|
});
|
|
}
|
|
_ => {
|
|
let commands = daemon.replay_and_inject(ch);
|
|
pressed_keys.remove(&event.keycode);
|
|
capture.without_grab(|| {
|
|
execute_commands(&*injector, &commands, true);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Key release — only inject if we were tracking this key
|
|
if pressed_keys.remove(&event.keycode) {
|
|
capture.without_grab(|| {
|
|
let _ = injector.send_key_event(event.keycode as u16, 0);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn run_with_evdev(
|
|
mut device: evdev::Device,
|
|
daemon: &mut Daemon,
|
|
shared_active_window: Arc<Mutex<String>>,
|
|
config_changed: Arc<AtomicBool>,
|
|
status_changed: Arc<AtomicBool>,
|
|
_engine_enabled: Arc<AtomicBool>,
|
|
display: display::DisplayServer,
|
|
) -> Result<(), Box<dyn std::error::Error>> {
|
|
let injector = create_injector(display)?;
|
|
|
|
let grabbed = if daemon.grab_enabled {
|
|
match device.grab() {
|
|
Ok(()) => {
|
|
log_info("[vietc] Keyboard grabbed — race condition eliminated");
|
|
true
|
|
}
|
|
Err(e) => {
|
|
log_info(&format!(
|
|
"[vietc] Could not grab keyboard: {} (run as root for grab)",
|
|
e
|
|
));
|
|
log_info("[vietc] Falling back to non-grabbing mode (may have race)");
|
|
false
|
|
}
|
|
}
|
|
} else {
|
|
log_info("[vietc] Keyboard grab disabled (config grab = false)");
|
|
log_info("[vietc] Set grab = true in vietc.toml to enable (needs root)");
|
|
false
|
|
};
|
|
|
|
let mut consumed_keys: HashSet<u16> = HashSet::new();
|
|
let mut last_active_window = String::new();
|
|
|
|
// Safety: if grab is active and no events arrive for 30 seconds,
|
|
// release the grab so the user isn't locked out.
|
|
let mut last_event_time = std::time::Instant::now();
|
|
|
|
loop {
|
|
// Check for event timeout (grab safety)
|
|
if grabbed && last_event_time.elapsed() > std::time::Duration::from_secs(30) {
|
|
log_info(
|
|
"[vietc] No events for 30s — releasing grab timeout, releasing grab for safety",
|
|
);
|
|
let _ = device.ungrab();
|
|
return Ok(());
|
|
}
|
|
|
|
let caps = is_caps_lock_on(&device);
|
|
let mut key_state = device
|
|
.get_key_state()
|
|
.ok()
|
|
.unwrap_or_else(evdev::AttributeSet::new);
|
|
let events = device.fetch_events()?;
|
|
last_event_time = std::time::Instant::now();
|
|
|
|
// Check for status changes instantly
|
|
if status_changed.load(Ordering::SeqCst) {
|
|
daemon.sync_status_file();
|
|
status_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
// Track window changes and reset engine buffer
|
|
{
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
if active_window != last_active_window {
|
|
log_info(&format!(
|
|
"[vietc] Window changed: '{}' -> '{}'",
|
|
last_active_window, active_window
|
|
));
|
|
last_active_window = active_window.clone();
|
|
daemon.engine.reset();
|
|
log_info("[vietc] Reset engine buffer due to window change");
|
|
}
|
|
}
|
|
|
|
// Check for app changes instantly using the cached state from background thread
|
|
if daemon.config.app_state.enabled {
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
daemon.check_app_change_with(active_window);
|
|
}
|
|
|
|
// Check for config reload instantly
|
|
if config_changed.load(Ordering::SeqCst) {
|
|
daemon.reload_config();
|
|
config_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
for event in events {
|
|
if let evdev::InputEventKind::Key(key) = event.kind() {
|
|
let value = event.value();
|
|
let keycode = key.0;
|
|
|
|
// Update key state dynamically
|
|
if value == 1 {
|
|
key_state.insert(key);
|
|
} else if value == 0 {
|
|
key_state.remove(key);
|
|
}
|
|
|
|
// Completely bypass all IME processing/interception for terminal emulators, IDE terminals, and games
|
|
if daemon.is_current_app_bypassed() {
|
|
if grabbed {
|
|
injector.send_key_event(keycode, value);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if value == 1 && is_toggle_combination_state(&key_state, &daemon.config.toggle_key)
|
|
{
|
|
daemon.toggle();
|
|
continue;
|
|
}
|
|
|
|
if !grabbed {
|
|
// Legacy mode: only forward to engine on press events
|
|
if value != 1 {
|
|
continue;
|
|
}
|
|
if is_modifier_pressed(&key_state) {
|
|
continue;
|
|
}
|
|
if let Some(ch) = key_to_char(key) {
|
|
let commands = daemon.process_key(ch);
|
|
execute_commands(&*injector, &commands, false);
|
|
}
|
|
} else {
|
|
// Grabbing mode: all output goes through uinput only.
|
|
|
|
// If Ctrl, Alt, or Meta/Super is pressed, bypass the engine completely and forward raw key events.
|
|
if is_modifier_pressed(&key_state) {
|
|
injector.send_key_event(keycode, value);
|
|
continue;
|
|
}
|
|
|
|
// Backspace in grab mode: pop engine, inject via uinput.
|
|
if key == evdev::Key::KEY_BACKSPACE {
|
|
if value == 1 || value == 2 {
|
|
daemon.engine.process_key('\x08');
|
|
injector.send_key_event(14, 1);
|
|
injector.send_key_event(14, 0);
|
|
}
|
|
consumed_keys.insert(keycode);
|
|
continue;
|
|
}
|
|
|
|
if value == 1 {
|
|
// Press: process through engine
|
|
if consumed_keys.contains(&keycode) {
|
|
consumed_keys.remove(&keycode);
|
|
}
|
|
if let Some(mut ch) = key_to_char(key) {
|
|
let shift = is_modifier_held_shift(&key_state);
|
|
if ch.is_ascii_alphabetic() && (shift ^ caps) {
|
|
ch = ch.to_ascii_uppercase();
|
|
}
|
|
let commands = daemon.process_key(ch);
|
|
if !commands.is_empty() {
|
|
consumed_keys.insert(keycode);
|
|
execute_commands(&*injector, &commands, true);
|
|
} else {
|
|
injector.send_key_event(keycode, 1);
|
|
}
|
|
} else {
|
|
injector.send_key_event(keycode, 1);
|
|
}
|
|
} else if value == 2 {
|
|
// Auto-repeat: skip if consumed, else forward
|
|
if consumed_keys.contains(&keycode) {
|
|
continue;
|
|
}
|
|
injector.send_key_event(keycode, 2);
|
|
} else if value == 0 {
|
|
// Release: skip if consumed, else forward
|
|
if consumed_keys.contains(&keycode) {
|
|
consumed_keys.remove(&keycode);
|
|
continue;
|
|
}
|
|
injector.send_key_event(keycode, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn run_stdin_mode(
|
|
daemon: &mut Daemon,
|
|
shared_active_window: Arc<Mutex<String>>,
|
|
config_changed: Arc<AtomicBool>,
|
|
status_changed: Arc<AtomicBool>,
|
|
_engine_enabled: Arc<AtomicBool>,
|
|
display: display::DisplayServer,
|
|
) -> Result<(), Box<dyn std::error::Error>> {
|
|
use std::io::{self, IsTerminal, Read};
|
|
|
|
if !io::stdin().is_terminal() {
|
|
log_info("[vietc] Warning: No keyboard device and no terminal.");
|
|
log_info("[vietc] Retrying keyboard access every 5 seconds...");
|
|
log_info("[vietc] Ensure you are in the 'input' group:");
|
|
log_info(" sudo usermod -aG input $USER");
|
|
log_info(" Then log out and back in.");
|
|
|
|
// Retry loop: periodically attempt to reopen the keyboard device
|
|
loop {
|
|
thread::sleep(Duration::from_secs(5));
|
|
|
|
// Check for status changes
|
|
if status_changed.load(Ordering::SeqCst) {
|
|
daemon.sync_status_file();
|
|
status_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
if config_changed.load(Ordering::SeqCst) {
|
|
daemon.reload_config();
|
|
config_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
if let Ok((device, path)) = open_keyboard_device() {
|
|
log_info(&format!("[vietc] Keyboard device found: {}", path));
|
|
return run_with_evdev(
|
|
device,
|
|
daemon,
|
|
shared_active_window,
|
|
config_changed,
|
|
status_changed,
|
|
_engine_enabled,
|
|
display,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
let injector = create_injector(display)?;
|
|
let mut buffer = [0u8; 1];
|
|
let mut last_active_window = String::new();
|
|
|
|
log_info("[vietc] Type to test, Ctrl+C to exit");
|
|
|
|
let stdin = io::stdin();
|
|
let mut handle = stdin.lock();
|
|
loop {
|
|
// Check for status changes instantly
|
|
if status_changed.load(Ordering::SeqCst) {
|
|
daemon.sync_status_file();
|
|
status_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
// Track window changes and reset engine buffer
|
|
{
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
if active_window != last_active_window {
|
|
log_info(&format!(
|
|
"[vietc] Window changed: '{}' -> '{}'",
|
|
last_active_window, active_window
|
|
));
|
|
last_active_window = active_window.clone();
|
|
daemon.engine.reset();
|
|
log_info("[vietc] Reset engine buffer due to window change");
|
|
}
|
|
}
|
|
|
|
// Check for app changes instantly using the cached state from background thread
|
|
if daemon.config.app_state.enabled {
|
|
let active_window = shared_active_window.lock().unwrap().clone();
|
|
daemon.check_app_change_with(active_window);
|
|
}
|
|
|
|
// Check for config reload instantly
|
|
if config_changed.load(Ordering::SeqCst) {
|
|
daemon.reload_config();
|
|
config_changed.store(false, Ordering::SeqCst);
|
|
}
|
|
|
|
match handle.read(&mut buffer) {
|
|
Ok(0) => break,
|
|
Ok(_) => {
|
|
let ch = buffer[0] as char;
|
|
let commands = daemon.process_key(ch);
|
|
execute_commands(&*injector, &commands, false);
|
|
}
|
|
Err(e) => {
|
|
log_info(&format!("[vietc] Read error: {}", e));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
/// Execute commands — accumulate backspaces and text, then inject through
|
|
/// a single channel (ydotool or wtype) to avoid reordering between backspaces
|
|
/// (uinput) and text (ydotool).
|
|
fn execute_commands(
|
|
injector: &dyn vietc_protocol::KeyInjector,
|
|
commands: &[OutputCommand],
|
|
grabbed: bool,
|
|
) {
|
|
let mut pending_backspaces: usize = 0;
|
|
let mut pending_text = String::new();
|
|
|
|
for cmd in commands {
|
|
match cmd {
|
|
OutputCommand::Backspace(count) => {
|
|
let adjusted = if grabbed {
|
|
count.saturating_sub(1)
|
|
} else {
|
|
*count
|
|
};
|
|
log_info(&format!(
|
|
"[vietc] cmd: Backspace({}) -> adjusted={}",
|
|
count, adjusted
|
|
));
|
|
pending_backspaces += adjusted;
|
|
}
|
|
OutputCommand::Type(text) => {
|
|
log_info(&format!("[vietc] cmd: Type(\"{}\")", text));
|
|
pending_text.push_str(text);
|
|
}
|
|
}
|
|
}
|
|
|
|
if pending_backspaces > 0 || !pending_text.is_empty() {
|
|
log_info(&format!(
|
|
"[vietc] inject: BS={} text=\"{}\"",
|
|
pending_backspaces, pending_text
|
|
));
|
|
|
|
// Use injector for text (ydotool/xdotool/wtype)
|
|
let _ = injector.inject_replacement(pending_backspaces, &pending_text);
|
|
} else if !commands.is_empty() {
|
|
// Empty text but commands exist (e.g. Backspace only or Flush empty string)
|
|
log_info(&format!("[vietc] inject: BS={}", pending_backspaces));
|
|
|
|
let _ = injector.inject_replacement(pending_backspaces, &pending_text);
|
|
}
|
|
|
|
injector.flush();
|
|
|
|
// Sleep briefly to let the display server and target application process the
|
|
// injected key strokes and clear any modifier states before we handle subsequent physical keys.
|
|
if grabbed && !commands.is_empty() {
|
|
std::thread::sleep(std::time::Duration::from_millis(20));
|
|
}
|
|
}
|
|
|
|
fn create_injector(
|
|
display: display::DisplayServer,
|
|
) -> Result<Box<dyn vietc_protocol::KeyInjector>, Box<dyn std::error::Error>> {
|
|
// Try Wayland input method first (if compiled with wayland feature)
|
|
#[cfg(feature = "wayland")]
|
|
{
|
|
let _ctx = vietc_protocol::wayland_im::WaylandIMContext::new();
|
|
log_info("[vietc] Wayland input method context initialized");
|
|
}
|
|
|
|
// Use uinput as primary injector — it handles ASCII via direct keycodes
|
|
// and Unicode via ydotool type (uinput-based, no display server needed).
|
|
// Using a single injection channel avoids ordering issues between XTest
|
|
// (ASCII) and ydotool (Unicode) interleaving.
|
|
match vietc_protocol::uinput_monitor::UinputInjector::new("vietc") {
|
|
Ok(injector) => {
|
|
log_info("[vietc] Using uinput injection (primary)");
|
|
return Ok(Box::new(injector));
|
|
}
|
|
Err(e) => {
|
|
log_info(&format!("[vietc] uinput not available: {}", e));
|
|
}
|
|
}
|
|
|
|
// Fall back to X11 XTEST (last resort — doesn't handle Unicode well)
|
|
#[cfg(feature = "x11")]
|
|
{
|
|
if display != display::DisplayServer::Wayland {
|
|
match vietc_protocol::x11_inject::X11Injector::new() {
|
|
Ok(injector) => {
|
|
log_info("[vietc] Using X11 injection (XTEST fallback)");
|
|
return Ok(Box::new(injector));
|
|
}
|
|
Err(e) => {
|
|
log_info(&format!("[vietc] X11 not available: {}", e));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Err("No injection backend available".into())
|
|
}
|
|
|
|
fn is_modifier_pressed(key_state: &evdev::AttributeSet<evdev::Key>) -> bool {
|
|
key_state.contains(evdev::Key::KEY_LEFTCTRL)
|
|
|| key_state.contains(evdev::Key::KEY_RIGHTCTRL)
|
|
|| key_state.contains(evdev::Key::KEY_LEFTALT)
|
|
|| key_state.contains(evdev::Key::KEY_RIGHTALT)
|
|
|| key_state.contains(evdev::Key::KEY_LEFTMETA)
|
|
|| key_state.contains(evdev::Key::KEY_RIGHTMETA)
|
|
}
|
|
|
|
fn is_modifier_held_shift(key_state: &evdev::AttributeSet<evdev::Key>) -> bool {
|
|
key_state.contains(evdev::Key::KEY_LEFTSHIFT) || key_state.contains(evdev::Key::KEY_RIGHTSHIFT)
|
|
}
|
|
|
|
fn is_caps_lock_on(device: &evdev::Device) -> bool {
|
|
if let Ok(leds) = device.get_led_state() {
|
|
leds.contains(evdev::LedType::LED_CAPSL)
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
fn is_toggle_combination_state(key_state: &evdev::AttributeSet<evdev::Key>, key: &str) -> bool {
|
|
let ctrl_pressed = key_state.contains(evdev::Key::KEY_LEFTCTRL)
|
|
|| key_state.contains(evdev::Key::KEY_RIGHTCTRL);
|
|
|
|
if !ctrl_pressed {
|
|
return false;
|
|
}
|
|
|
|
let target = match key.to_lowercase().as_str() {
|
|
"space" => evdev::Key::KEY_SPACE,
|
|
"shift" => evdev::Key::KEY_LEFTSHIFT,
|
|
"capslock" => evdev::Key::KEY_CAPSLOCK,
|
|
"ctrl" => evdev::Key::KEY_LEFTCTRL,
|
|
"alt" => evdev::Key::KEY_LEFTALT,
|
|
_ => return false,
|
|
};
|
|
|
|
key_state.contains(target)
|
|
}
|
|
|
|
fn key_to_char(key: evdev::Key) -> Option<char> {
|
|
match key {
|
|
evdev::Key::KEY_A => Some('a'),
|
|
evdev::Key::KEY_B => Some('b'),
|
|
evdev::Key::KEY_C => Some('c'),
|
|
evdev::Key::KEY_D => Some('d'),
|
|
evdev::Key::KEY_E => Some('e'),
|
|
evdev::Key::KEY_F => Some('f'),
|
|
evdev::Key::KEY_G => Some('g'),
|
|
evdev::Key::KEY_H => Some('h'),
|
|
evdev::Key::KEY_I => Some('i'),
|
|
evdev::Key::KEY_J => Some('j'),
|
|
evdev::Key::KEY_K => Some('k'),
|
|
evdev::Key::KEY_L => Some('l'),
|
|
evdev::Key::KEY_M => Some('m'),
|
|
evdev::Key::KEY_N => Some('n'),
|
|
evdev::Key::KEY_O => Some('o'),
|
|
evdev::Key::KEY_P => Some('p'),
|
|
evdev::Key::KEY_Q => Some('q'),
|
|
evdev::Key::KEY_R => Some('r'),
|
|
evdev::Key::KEY_S => Some('s'),
|
|
evdev::Key::KEY_T => Some('t'),
|
|
evdev::Key::KEY_U => Some('u'),
|
|
evdev::Key::KEY_V => Some('v'),
|
|
evdev::Key::KEY_W => Some('w'),
|
|
evdev::Key::KEY_X => Some('x'),
|
|
evdev::Key::KEY_Y => Some('y'),
|
|
evdev::Key::KEY_Z => Some('z'),
|
|
evdev::Key::KEY_0 => Some('0'),
|
|
evdev::Key::KEY_1 => Some('1'),
|
|
evdev::Key::KEY_2 => Some('2'),
|
|
evdev::Key::KEY_3 => Some('3'),
|
|
evdev::Key::KEY_4 => Some('4'),
|
|
evdev::Key::KEY_5 => Some('5'),
|
|
evdev::Key::KEY_6 => Some('6'),
|
|
evdev::Key::KEY_7 => Some('7'),
|
|
evdev::Key::KEY_8 => Some('8'),
|
|
evdev::Key::KEY_9 => Some('9'),
|
|
evdev::Key::KEY_SPACE => Some(' '),
|
|
evdev::Key::KEY_DOT => Some('.'),
|
|
evdev::Key::KEY_COMMA => Some(','),
|
|
evdev::Key::KEY_MINUS => Some('-'),
|
|
evdev::Key::KEY_EQUAL => Some('='),
|
|
evdev::Key::KEY_SEMICOLON => Some(';'),
|
|
evdev::Key::KEY_APOSTROPHE => Some('\''),
|
|
evdev::Key::KEY_SLASH => Some('/'),
|
|
evdev::Key::KEY_BACKSPACE => Some('\x08'),
|
|
evdev::Key::KEY_ENTER => Some('\n'),
|
|
_ => None,
|
|
}
|
|
}
|