cosmic-comp/src/main.rs
2023-08-31 13:53:30 +02:00

137 lines
4.1 KiB
Rust

// SPDX-License-Identifier: GPL-3.0-only
use smithay::{
reexports::{
calloop::{generic::Generic, EventLoop, Interest, Mode, PostAction},
wayland_server::Display,
},
wayland::socket::ListeningSocketSource,
};
use anyhow::{Context, Result};
use std::{ffi::OsString, os::unix::prelude::AsRawFd, sync::Arc};
use tracing::{error, info, warn};
use crate::wayland::handlers::compositor::client_compositor_state;
pub mod backend;
pub mod config;
#[cfg(feature = "debug")]
pub mod debug;
pub mod input;
mod logger;
pub mod session;
pub mod shell;
pub mod state;
#[cfg(feature = "systemd")]
pub mod systemd;
pub mod utils;
pub mod wayland;
pub mod xwayland;
fn main() -> Result<()> {
// setup logger
logger::init_logger()?;
info!("Cosmic starting up!");
// init event loop
let mut event_loop =
EventLoop::try_new_high_precision().with_context(|| "Failed to initialize event loop")?;
// init wayland
let (display, socket) = init_wayland_display(&mut event_loop)?;
// init state
let mut state = state::State::new(
&display.handle(),
socket,
event_loop.handle(),
event_loop.get_signal(),
);
// init backend
backend::init_backend_auto(&display.handle(), &mut event_loop, &mut state)?;
// potentially tell systemd we are setup now
#[cfg(feature = "systemd")]
if let state::BackendData::Kms(_) = &state.backend {
systemd::ready(&state);
}
// potentially tell the session we are setup now
session::setup_socket(event_loop.handle(), &state)?;
let mut data = state::Data { display, state };
// run the event loop
event_loop.run(None, &mut data, |data| {
// shall we shut down?
if data.state.common.shell.outputs().next().is_none() || data.state.common.should_stop {
info!("Shutting down");
data.state.common.event_loop_signal.stop();
data.state.common.event_loop_signal.wakeup();
return;
}
// trigger routines
let clients = data.state.common.shell.update_animations();
{
let dh = data.display.handle();
for client in clients.values() {
client_compositor_state(&client).blocker_cleared(&mut data.state, &dh);
}
}
data.state.common.shell.refresh();
state::Common::refresh_focus(&mut data.state);
// send out events
let _ = data.display.flush_clients();
})?;
// drop eventloop & state before logger
std::mem::drop(event_loop);
std::mem::drop(data);
Ok(())
}
fn init_wayland_display(
event_loop: &mut EventLoop<state::Data>,
) -> Result<(Display<state::State>, OsString)> {
let mut display = Display::new().unwrap();
let source = ListeningSocketSource::new_auto().unwrap();
let socket_name = source.socket_name().to_os_string();
info!("Listening on {:?}", socket_name);
event_loop
.handle()
.insert_source(source, |client_stream, _, data| {
if let Err(err) = data.display.handle().insert_client(
client_stream,
Arc::new(if cfg!(debug_assertions) {
data.state.new_privileged_client_state()
} else {
data.state.new_client_state()
}),
) {
warn!(?err, "Error adding wayland client");
};
})
.with_context(|| "Failed to init the wayland socket source.")?;
event_loop
.handle()
.insert_source(
Generic::new(
display.backend().poll_fd().as_raw_fd(),
Interest::READ,
Mode::Level,
),
move |_, _, data: &mut state::Data| match data.display.dispatch_clients(&mut data.state)
{
Ok(_) => Ok(PostAction::Continue),
Err(err) => {
error!(?err, "I/O error on the Wayland display");
data.state.common.should_stop = true;
Err(err)
}
},
)
.with_context(|| "Failed to init the wayland event source.")?;
Ok((display, socket_name))
}