WIP Ei protocol support

Cargo.toml

@@ -116,4 +116,5 @@ inherits = "release"
 lto = "fat"
 
 [patch."https://github.com/Smithay/smithay.git"]
-smithay = { git = "https://github.com/smithay//smithay", rev = "f364c73" }
+# smithay = { git = "https://github.com/smithay//smithay", rev = "f364c73" }
+smithay = {git = "https://github.com/ids1024/smithay", branch = "reis"}

src/libei.rs

@@ -0,0 +1,30 @@
+use reis::calloop::EisListenerSource;
+use reis::eis;
+use smithay::reexports::reis;
+
+use smithay::backend::libei::EiInput;
+use smithay::reexports::calloop;
+
+use crate::state::State;
+
+pub fn listen_eis(handle: &calloop::LoopHandle<'static, State>) {
+    let path = reis::default_socket_path().unwrap();
+    std::fs::remove_file(&path); // XXX in use?
+    let listener = eis::Listener::bind(&path).unwrap();
+    let listener_source = EisListenerSource::new(listener);
+
+    std::env::set_var("LIBEI_SOCKET", path);
+
+    let handle_clone = handle.clone();
+    handle
+        .insert_source(listener_source, move |context, _, _| {
+            let source = EiInput::new(context);
+            handle_clone
+                .insert_source(source, |event, _, data| {
+                    data.process_input_event(event, true);
+                })
+                .unwrap();
+            Ok(calloop::PostAction::Continue)
+        })
+        .unwrap();
+}

src/main.rs

@@ -21,6 +21,7 @@ pub mod dbus;
 #[cfg(feature = "debug")]
 pub mod debug;
 pub mod input;
+pub mod libei;
 mod logger;
 pub mod session;
 pub mod shell;
@@ -107,6 +108,8 @@ fn main() -> Result<()> {
     // init backend
     backend::init_backend_auto(&display, &mut event_loop, &mut state)?;
 
+    libei::listen_eis(&event_loop.handle());
+
     if let Err(err) = theme::watch_theme(event_loop.handle()) {
         warn!(?err, "Failed to watch theme");
     }

src/shell/seats.rs

@@ -75,9 +75,13 @@ impl Seats {
 
     pub fn for_device<D: Device>(&self, device: &D) -> Option<&Seat<State>> {
         self.iter().find(|seat| {
+            // XXX
+            /*
             let userdata = seat.user_data();
             let devices = userdata.get::<Devices>().unwrap();
             devices.has_device(device)
+            */
+            true
         })
     }
 }