add: struct holding a key and an action

src/main.rs

@@ -11,11 +11,17 @@ fn main() -> () {
     }
     println!("{}", D.name().unwrap_or("Unknown device"));
 
-    let side_handle = std::thread::spawn(|| loop {
-        if D.get_key_state().unwrap().contains(evdev::Key::BTN_SIDE) {
-            println!("BTN_SIDE");
+    let side_handle = std::thread::spawn(|| {
+        let pedal = Pedal {
+            key: evdev::Key::BTN_SIDE,
+            action: Box::new(|| println!("BTN_SIDE")),
+        };
+        loop {
+            if D.get_key_state().unwrap().contains(pedal.key) {
+                (*pedal.action)();
+            }
+            std::thread::sleep(std::time::Duration::from_millis(100));
         }
-        std::thread::sleep(std::time::Duration::from_millis(100));
     });
 
     let extra_handle = std::thread::spawn(|| loop {
@@ -49,3 +55,8 @@ fn pick_device() -> evdev::Device {
         devices.into_iter().nth(n).unwrap()
     }
 }
+
+struct Pedal {
+    key: evdev::Key,
+    action: Box<dyn Fn() -> ()>,
+}