run_key_action(): Use `Result` from `run_action()`

Now that `run_action()` returns a `Result`
(e4c21b11069297d289f25834cfc3c001a4604b5f), we need to use that `Result`
when we call it in `run_key_action()`.

Pass on the `Result` to `ffi::run_key_action()`, and print the error
message from there.

2 files changed, 11 insertions, 6 deletions

diff --git a/src/ffi.rs b/src/ffi.rs
index 238385d..6758a46 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -122,7 +122,10 @@ pub extern "C" fn dome_key_run_key_action(
         &mut *state
     };
 
-    run_key_action(&mut state, trigger, on_mode_change);
+    match run_key_action(&mut state, trigger, on_mode_change) {
+        Ok(_) => (),
+        Err(e) => error!("{}", e),
+    };
 }
 
 #[no_mangle]
diff --git a/src/map.rs b/src/map.rs
index 86d6773..7d9cb0f 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -16,7 +16,7 @@ pub fn run_key_action<'a>(
     state: &mut State,
     trigger: &'a [HeadphoneButton],
     on_mode_change: extern "C" fn(mode_change: ModeChange),
-) {
+) -> Result<()> {
     match state.map_group {
         Some(ref map_group) => {
             let map = map_group.maps.get(trigger);
@@ -30,18 +30,18 @@ pub fn run_key_action<'a>(
 
                         on_mode_change(ModeChange::Deactivated);
 
-                        return;
+                        return Ok(());
                     }
 
                     if let Some(map) = mode.get(trigger) {
-                        run_action(&map);
+                        run_action(&map)?;
                     }
                 }
             }
 
             if state.in_mode.is_none() {
                 if let Some(map) = map {
-                    run_action(&map);
+                    run_action(&map)?;
                 }
             }
 
@@ -52,7 +52,9 @@ pub fn run_key_action<'a>(
             }
         },
         None => (),
-    }
+    };
+
+    Ok(())
 }
 
 fn run_action(map_action: &MapAction) -> Result<()> {