Implement TTY switching

Having to pass backend around turns out to be a problem...

3 files changed, 18 insertions, 4 deletions

diff --git a/src/input.rs b/src/input.rs
index ad182645..f2a91082 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -15,7 +15,11 @@ enum InputAction {
 }
 
 impl Niri {
-    pub fn process_input_event<I: InputBackend>(&mut self, event: InputEvent<I>) {
+    pub fn process_input_event<I: InputBackend>(
+        &mut self,
+        change_vt: &mut dyn FnMut(i32),
+        event: InputEvent<I>,
+    ) {
         trace!("process_input_event");
 
         match event {
@@ -45,7 +49,9 @@ impl Niri {
                             info!("quitting because Esc was pressed");
                             self.stop_signal.stop()
                         }
-                        InputAction::ChangeVt(vt) => todo!(),
+                        InputAction::ChangeVt(vt) => {
+                            (*change_vt)(vt);
+                        }
                     }
                 }
             }
diff --git a/src/tty.rs b/src/tty.rs
index bc5fe907..b2a7e61a 100644
--- a/src/tty.rs
+++ b/src/tty.rs
@@ -117,7 +117,9 @@ impl Tty {
         let input_backend = LibinputInputBackend::new(libinput.clone());
         event_loop
             .insert_source(input_backend, |event, _, data| {
-                data.niri.process_input_event(event)
+                let tty = data.tty.as_mut().unwrap();
+                let mut change_vt = |vt| tty.change_vt(vt);
+                data.niri.process_input_event(&mut change_vt, event);
             })
             .unwrap();
 
@@ -440,4 +442,10 @@ impl Tty {
         )?;
         Ok(compositor)
     }
+
+    fn change_vt(&mut self, vt: i32) {
+        if let Err(err) = self.session.change_vt(vt) {
+            error!("error changing VT: {err}");
+        }
+    }
 }
diff --git a/src/winit.rs b/src/winit.rs
index d0994f7a..b1e9bf65 100644
--- a/src/winit.rs
+++ b/src/winit.rs
@@ -110,7 +110,7 @@ impl Winit {
                         None,
                     );
                 }
-                WinitEvent::Input(event) => niri.process_input_event(event),
+                WinitEvent::Input(event) => niri.process_input_event(&mut |_| (), event),
                 _ => (),
             });