kms: Enable VT switching

src/backend/kms/mod.rs

@@ -102,7 +102,7 @@ pub fn init_backend(event_loop: &mut EventLoop<State>, state: &mut State) -> Res
     let libinput_event_source = event_loop
         .handle()
         .insert_source(libinput_backend, move |event, _, state| {
-            state.common.process_input_event(event);
+            state.process_input_event(event);
             for output in state.common.shell.outputs() {
                 state.backend.kms().schedule_render(output);
             }
@@ -624,6 +624,13 @@ impl Surface {
 }
 
 impl KmsState {
+    pub fn switch_vt(
+        &mut self,
+        num: i32,
+    ) -> Result<(), anyhow::Error> {
+        self.session.change_vt(num).map_err(Into::into)
+    }
+
     pub fn apply_config_for_output(
         &mut self,
         output: &Output,

src/backend/winit.rs

@@ -276,7 +276,7 @@ impl State {
                 render_ping.ping();
             }
             WinitEvent::Refresh => render_ping.ping(),
-            WinitEvent::Input(event) => self.common.process_input_event(event),
+            WinitEvent::Input(event) => self.process_input_event(event),
             _ => {}
         };
     }

src/backend/x11.rs

@@ -410,7 +410,7 @@ impl State {
             _ => {}
         };
 
-        self.common.process_input_event(event);
+        self.process_input_event(event);
         // TODO actually figure out the output
         for output in self.common.shell.outputs() {
             self.backend.schedule_render(output);