shell: handle xdg/layer globals

src/input/mod.rs

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::state::State;
+use smithay::{
+    backend::input::{Device, DeviceCapability, InputBackend, InputEvent},
+    reexports::wayland_server::Display,
+    wayland::{
+        data_device::set_data_device_focus,
+        output::Output,
+        seat::{CursorImageStatus, Keysym, Seat, XkbConfig},
+    },
+};
+use std::{cell::RefCell, collections::HashMap};
+
+pub struct ActiveOutput(pub RefCell<Output>);
+
+pub fn add_seat(display: &mut Display, name: String) -> Seat {
+    let (seat, _) = Seat::new(display, name, None);
+    seat
+}
+
+pub fn active_output(seat: &Seat, state: &State) -> Output {
+    seat.user_data()
+        .get::<ActiveOutput>()
+        .map(|x| x.0.borrow().clone())
+        .unwrap_or_else(|| {
+            state
+                .spaces
+                .outputs()
+                .next()
+                .cloned()
+                .expect("Backend has no outputs?")
+        })
+}