transport is rolling

src/transport/mod.rs

@@ -0,0 +1,57 @@
+mod handle;
+mod jack;
+mod render;
+pub use self::handle::*;
+pub use self::jack::*;
+pub use self::render::*;
+use crate::prelude::*;
+
+pub const ACTIONS: [(&'static str, &'static str);3] = [
+    ("(Shift-)Tab",   "Switch pane"),
+    ("Arrows",        "Navigate"),
+    ("(Shift-)Space", "⯈ Play/pause"),
+];
+
+pub struct Transport {
+    exited:    bool,
+    title:     String,
+    transport: ::jack::Transport,
+}
+
+impl Transport {
+    pub fn new (client: &Client) -> Result<Self, Box<dyn Error>> {
+        Ok(Self {
+            exited:    false,
+            title:     String::from("Untitled project"),
+            transport: client.transport(),
+        })
+    }
+
+    pub fn play_from_start_or_stop_and_rewind (&mut self) {
+    }
+
+    pub fn play_or_pause (&mut self) -> Result<(), Box<dyn Error>> {
+        match self.transport.query_state()? {
+            TransportState::Stopped => self.play(),
+            TransportState::Rolling => self.stop(),
+            _ => Ok(())
+        }
+    }
+
+    pub fn play (&mut self) -> Result<(), Box<dyn Error>> {
+        Ok(self.transport.start()?)
+    }
+
+    pub fn stop (&mut self) -> Result<(), Box<dyn Error>> {
+        Ok(self.transport.stop()?)
+    }
+}
+
+impl Exitable for Transport {
+    fn exit (&mut self) {
+        self.exited = true
+    }
+    fn exited (&self) -> bool {
+        self.exited
+    }
+}

src/transport/render.rs

@@ -7,7 +7,6 @@ pub fn render (
     mut offset: (u16, u16)
 ) -> Result<(), Box<dyn Error>> {
     let move_to = |col, row| MoveTo(offset.0 + col, offset.1 + row);
-    let position = state.transport.query();
     stdout.queue(move_to( 1, 0))?.queue(
         Print("Project: ")
     )?.queue(move_to(10, 0))?.queue(