Files
ironbar-fork/src/clients/wayland/client.rs
2022-12-11 22:45:52 +00:00

119 lines
4.2 KiB
Rust

use super::toplevel::{ToplevelEvent, ToplevelInfo};
use super::toplevel_manager::listen_for_toplevels;
use super::ToplevelChange;
use super::{Env, ToplevelHandler};
use crate::{error as err, send, write_lock};
use color_eyre::Report;
use indexmap::IndexMap;
use smithay_client_toolkit::environment::Environment;
use smithay_client_toolkit::output::{with_output_info, OutputInfo};
use smithay_client_toolkit::reexports::calloop;
use smithay_client_toolkit::{new_default_environment, WaylandSource};
use std::sync::{Arc, RwLock};
use std::time::Duration;
use tokio::sync::{broadcast, oneshot};
use tokio::task::spawn_blocking;
use tracing::{error, trace};
use wayland_client::protocol::wl_seat::WlSeat;
use wayland_protocols::wlr::unstable::foreign_toplevel::v1::client::{
zwlr_foreign_toplevel_handle_v1::ZwlrForeignToplevelHandleV1,
zwlr_foreign_toplevel_manager_v1::ZwlrForeignToplevelManagerV1,
};
pub struct WaylandClient {
pub outputs: Vec<OutputInfo>,
pub seats: Vec<WlSeat>,
pub toplevels: Arc<RwLock<IndexMap<usize, (ToplevelInfo, ZwlrForeignToplevelHandleV1)>>>,
toplevel_tx: broadcast::Sender<ToplevelEvent>,
_toplevel_rx: broadcast::Receiver<ToplevelEvent>,
}
impl WaylandClient {
pub(super) async fn new() -> Self {
let (output_tx, output_rx) = oneshot::channel();
let (seat_tx, seat_rx) = oneshot::channel();
let (toplevel_tx, toplevel_rx) = broadcast::channel(32);
let toplevel_tx2 = toplevel_tx.clone();
let toplevels = Arc::new(RwLock::new(IndexMap::new()));
let toplevels2 = toplevels.clone();
// `queue` is not send so we need to handle everything inside the task
spawn_blocking(move || {
let (env, _display, queue) =
new_default_environment!(Env, fields = [toplevel: ToplevelHandler::init()])
.expect("Failed to connect to Wayland compositor");
let outputs = Self::get_outputs(&env);
send!(output_tx, outputs);
let seats = env.get_all_seats();
send!(
seat_tx,
seats
.into_iter()
.map(|seat| seat.detach())
.collect::<Vec<WlSeat>>()
);
let _toplevel_manager = env.require_global::<ZwlrForeignToplevelManagerV1>();
let _listener = listen_for_toplevels(env, move |handle, event, _ddata| {
trace!("Received toplevel event: {:?}", event);
if event.change == ToplevelChange::Close {
write_lock!(toplevels2).remove(&event.toplevel.id);
} else {
write_lock!(toplevels2)
.insert(event.toplevel.id, (event.toplevel.clone(), handle));
}
send!(toplevel_tx2, event);
});
let mut event_loop =
calloop::EventLoop::<()>::try_new().expect("Failed to create new event loop");
WaylandSource::new(queue)
.quick_insert(event_loop.handle())
.expect("Failed to insert event loop into wayland event queue");
loop {
// TODO: Avoid need for duration here - can we force some event when sending requests?
if let Err(err) = event_loop.dispatch(Duration::from_millis(50), &mut ()) {
error!(
"{:?}",
Report::new(err).wrap_err("Failed to dispatch pending wayland events")
);
}
}
});
let outputs = output_rx.await.expect(err::ERR_CHANNEL_RECV);
let seats = seat_rx.await.expect(err::ERR_CHANNEL_RECV);
Self {
outputs,
seats,
toplevels,
toplevel_tx,
_toplevel_rx: toplevel_rx,
}
}
pub fn subscribe_toplevels(&self) -> broadcast::Receiver<ToplevelEvent> {
self.toplevel_tx.subscribe()
}
fn get_outputs(env: &Environment<Env>) -> Vec<OutputInfo> {
let outputs = env.get_all_outputs();
outputs
.iter()
.filter_map(|output| with_output_info(output, Clone::clone))
.collect()
}
}