feat(input): add off option to touch device

niri-config/src/lib.rs

@@ -349,6 +349,8 @@ pub struct Tablet {
 
 #[derive(knuffel::Decode, Debug, Default, PartialEq)]
 pub struct Touch {
+    #[knuffel(child)]
+    pub off: bool,
     #[knuffel(child, unwrap(argument))]
     pub map_to_output: Option<String>,
 }
@@ -3900,6 +3902,7 @@ mod tests {
                     left_handed: false,
                 },
                 touch: Touch {
+                    off: false,
                     map_to_output: Some(
                         "eDP-1",
                     ),

src/input/mod.rs

@@ -3512,6 +3512,16 @@ pub fn apply_libinput_settings(config: &niri_config::Input, device: &mut input::
 
         let _ = device.config_left_handed_set(c.left_handed);
     }
+
+    let is_touch = device.has_capability(input::DeviceCapability::Touch);
+    if is_touch {
+        let c = &config.touch;
+        let _ = device.config_send_events_set_mode(if c.off {
+            input::SendEventsMode::DISABLED
+        } else {
+            input::SendEventsMode::ENABLED
+        });
+    }
 }
 
 pub fn mods_with_binds(