Add MidiController trait

.pre-commit-config.yaml

@@ -31,7 +31,7 @@ repos:
         stages:
           - commit-msg
   - repo: https://github.com/DavidAnson/markdownlint-cli2
-    rev: v0.9.0
+    rev: v0.9.2
     hooks:
       - id: markdownlint-cli2
         exclude: ^LICENSE\.md$
@@ -45,7 +45,7 @@ repos:
       - id: codespell
         args: [--ignore-words=.codespellignore]
   - repo: https://github.com/sirosen/check-jsonschema
-    rev: 0.25.0
+    rev: 0.26.1
     hooks:
       - id: check-github-actions
       - id: check-github-workflows

src/controller/mod.rs

@@ -50,3 +50,15 @@ pub trait Controller {
         event: <Self::Types as ControllerTypes>::InputEvent,
     ) -> Option<<Self::Types as ControllerTypes>::ControlAction>;
 }
+
+#[cfg(feature = "midi")]
+pub trait MidiController:
+    Controller + crate::MidiOutputGateway<crate::BoxedMidiOutputConnection>
+{
+}
+
+#[cfg(feature = "midi")]
+impl<T> MidiController for T where
+    T: Controller + crate::MidiOutputGateway<crate::BoxedMidiOutputConnection>
+{
+}

src/lib.rs

@@ -33,6 +33,9 @@ use std::{
 mod controller;
 pub use self::controller::{BoxedControllerTask, Controller, ControllerTypes};
 
+#[cfg(feature = "midi")]
+pub use self::controller::MidiController;
+
 #[cfg(feature = "controller-thread")]
 pub use self::controller::thread::ControllerThread;