input: enable configuring of trackpoint devices

niri-config/src/lib.rs

@@ -57,6 +57,8 @@ pub struct Input {
     #[knuffel(child, default)]
     pub mouse: Mouse,
     #[knuffel(child, default)]
+    pub trackpoint: Trackpoint,
+    #[knuffel(child, default)]
     pub tablet: Tablet,
     #[knuffel(child)]
     pub disable_power_key_handling: bool,
@@ -151,6 +153,16 @@ pub struct Mouse {
     pub accel_profile: Option<AccelProfile>,
 }
 
+#[derive(knuffel::Decode, Debug, Default, PartialEq)]
+pub struct Trackpoint {
+    #[knuffel(child)]
+    pub natural_scroll: bool,
+    #[knuffel(child, unwrap(argument), default)]
+    pub accel_speed: f64,
+    #[knuffel(child, unwrap(argument, str))]
+    pub accel_profile: Option<AccelProfile>,
+}
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum AccelProfile {
     Adaptive,
@@ -924,6 +936,12 @@ mod tests {
                     accel-profile "flat"
                 }
 
+                trackpoint {
+                    natural-scroll
+                    accel-speed 0.0
+                    accel-profile "flat"
+                }
+
                 tablet {
                     map-to-output "eDP-1"
                 }
@@ -1043,6 +1061,11 @@ mod tests {
                         accel_speed: 0.4,
                         accel_profile: Some(AccelProfile::Flat),
                     },
+                    trackpoint: Trackpoint {
+                        natural_scroll: true,
+                        accel_speed: 0.0,
+                        accel_profile: Some(AccelProfile::Flat),
+                    },
                     tablet: Tablet {
                         map_to_output: Some("eDP-1".to_owned()),
                     },