partially fix port autoconnect

src/jack.rs

@@ -45,20 +45,13 @@ impl JackClient {
         }
     }
     pub fn transport (&self) -> Transport {
-        match self {
-            Self::Inactive(client) =>
-                client.transport(),
-            Self::Active(client) =>
-                client.as_client().transport(),
+        self.client().transport()
     }
+    pub fn port_by_name (&self, name: &str) -> Option<Port<Unowned>> {
+        self.client().port_by_name(name)
     }
-    fn register_port <PS: PortSpec> (&self, name: &str, spec: PS) -> Usually<Port<PS>> {
-        Ok(match self {
-            Self::Inactive(client) =>
-                client.register_port(name, spec)?,
-            Self::Active(client) =>
-                client.as_client().register_port(name, spec)?,
-        })
+    pub fn register_port <PS: PortSpec> (&self, name: &str, spec: PS) -> Usually<Port<PS>> {
+        Ok(self.client().register_port(name, spec)?)
     }
     pub fn activate <T: Send + Sync + 'static> (
         self,

src/main.rs

@@ -18,6 +18,29 @@ pub fn main () -> Usually<()> {
         .with_midi_ins(&["nanoKEY Studio.*capture.*"])?
         .with_audio_outs(&["Komplete.+:playback_FL", "Komplete.+:playback_FR"])?
         .activate(Some(|app: &Arc<RwLock<App>>| {
+            let (midi_in, mut midi_outs) = {
+                let app = app.read().unwrap();
+                let jack = app.jack.as_ref().unwrap();
+                let midi_in = jack.register_port("midi-in", MidiIn)?;
+                let midi_outs = app.tracks.iter()
+                    .map(|t|Some(jack.register_port(&t.name, MidiOut).unwrap()))
+                    .collect::<Vec<_>>();
+                (midi_in, midi_outs)
+            };
+            {
+                let mut app = app.write().unwrap();
+                let jack = app.jack.as_ref().unwrap();
+                for name in app.midi_ins.iter() {
+                    if let Some(port) = jack.client().port_by_name(&name) {
+                        jack.client().connect_ports(&port, &midi_in)?;
+                    }
+                }
+                app.midi_in = Some(Arc::new(midi_in));
+                for (index, track) in app.tracks.iter_mut().enumerate() {
+                    track.midi_out = midi_outs[index].take();
+                    track.connect_first_device()?;
+                }
+            }
             Ok(())
         }))?;
     run(app)?;

src/model.rs

@@ -22,7 +22,7 @@ pub struct App {
     pub jack:          Option<JackClient>,
     /// Map of external MIDI outs in the jack graph
     /// to internal MIDI ins of this app.
-    pub midi_in:       Option<Port<MidiIn>>,
+    pub midi_in:       Option<Arc<Port<MidiIn>>>,
     /// Names of ports to connect to main MIDI IN.
     pub midi_ins:      Vec<String>,
     /// Main audio outputs.
@@ -172,7 +172,6 @@ impl App {
                 })
                 .collect::<Usually<()>>())
             .collect::<Usually<()>>()?;
-        self.midi_in = Some(midi_in);
         Ok(self)
     }
     pub fn activate (mut self, init: Option<impl FnOnce(&Arc<RwLock<Self>>)->Usually<()>>) -> Usually<Arc<RwLock<Self>>> {