Support for enabling shuffle.

src/spirc.rs

@@ -17,6 +17,9 @@ use protocol::spirc::{PlayStatus, State, MessageType, Frame, DeviceState};
 use mixer::Mixer;
 use player::Player;
 
+use rand;
+use rand::Rng;
+
 pub struct SpircTask {
     player: Player,
     mixer: Box<Mixer>,
@@ -401,6 +404,26 @@ impl SpircTask {
                 self.notify(None);
             }
 
+            MessageType::kMessageTypeShuffle => {
+                self.state.set_shuffle(frame.get_state().get_shuffle());
+                if self.state.get_shuffle()
+                {
+                    let current_index = self.state.get_playing_track_index();
+                    {
+                        let tracks = self.state.mut_track();
+                        tracks.swap(0, current_index as usize);
+                        if let Some((_, rest)) = tracks.split_first_mut() {
+                            rand::thread_rng().shuffle(rest);
+                        }
+                    }
+                    self.state.set_playing_track_index(0);
+                } else {
+                    let context = self.state.get_context_uri();
+                    debug!("{:?}", context);
+                }
+                self.notify(None);
+            }
+
             MessageType::kMessageTypeSeek => {
                 let position = frame.get_position();