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#![allow(clippy::single_component_path_imports)]
#[macro_use]
extern crate anyhow;
mod bar;
mod button_manager;
mod color;
mod config;
mod i3bar_protocol;
mod pointer_btn;
mod protocol;
mod shared_state;
mod state;
mod status_cmd;
mod text;
mod utils;
mod wm_info_provider;
use signal_hook::consts::*;
use std::{io::ErrorKind, os::fd::AsRawFd};
use wayrs_client::connection::Connection;
use wayrs_client::IoMode;
use nix::{
errno::Errno,
fcntl::OFlag,
poll::{poll, PollFd, PollFlags},
};
use state::State;
fn main() -> anyhow::Result<()> {
let (sig_read, sig_write) = nix::unistd::pipe2(OFlag::O_NONBLOCK | OFlag::O_CLOEXEC)?;
signal_hook::low_level::pipe::register(SIGUSR1, sig_write)?;
let mut conn = Connection::connect()?;
let globals = conn.blocking_collect_initial_globals()?;
let mut state = State::new(&mut conn, &globals);
conn.flush(IoMode::Blocking)?;
let mut fds = Vec::with_capacity(3);
fds.push(PollFd::new(conn.as_raw_fd(), PollFlags::POLLIN));
fds.push(PollFd::new(sig_read, PollFlags::POLLIN));
if let Some(cmd_fd) = state.status_cmd_fd() {
fds.push(PollFd::new(cmd_fd, PollFlags::POLLIN));
}
loop {
match poll(&mut fds, -1) {
Ok(_) => (),
Err(Errno::EINTR) => continue,
Err(e) => bail!(e),
}
if fds[0].any().unwrap_or(false) {
match conn.recv_events(IoMode::NonBlocking) {
Ok(()) => {
conn.dispatch_events(&mut state);
conn.flush(IoMode::Blocking)?;
}
Err(e) if e.kind() == ErrorKind::WouldBlock => (),
Err(e) => return Err(e.into()),
}
}
if fds[1].any().unwrap_or(false) {
nix::unistd::read(sig_read, &mut [0; 1])?;
state.toggle_visibility(&mut conn);
}
if fds.len() > 2 && fds[2].any().unwrap_or(false) {
match state.shared_state.status_cmd.as_mut().unwrap().read() {
Ok(None) => (),
Ok(Some(blocks)) => {
state.set_blocks(&mut conn, blocks);
conn.flush(IoMode::Blocking)?;
}
Err(e) => {
let _ = state.shared_state.status_cmd.take().unwrap().child.kill();
fds.pop().unwrap();
state.set_error(&mut conn, e);
conn.flush(IoMode::Blocking)?;
}
}
}
}
}
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