audio: Watch for EOS messages from the gstreamer bus

Mark the track as played if it has run for more than 2/3 of the running
time. Also check the "continue" field when choosing the next song from
the stack.

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>

audio/player.py

@@ -14,6 +14,7 @@ class Player:
 
         self.bus = self.playbin.get_bus()
         self.bus.add_signal_watch()
+        self.bus.connect("message::eos", self.next)
         self.bus.connect("message::state-changed", self.on_state_changed)
         self.bus.connect("message::tag", self.on_tag)
 
@@ -61,6 +62,10 @@ class Player:
             self.playbin.set_state(state)
 
     def next(self, *args):
+        duration = self.duration()
+        if duration > 0 and (self.runtime() / duration) > (2 / 3):
+            self.track.played()
+
         (track, cont) = trackdb.Stack.next()
         state = Gst.State.PLAYING if cont else Gst.State.PAUSED
         self.load_set_state(track, state)
@@ -97,6 +102,11 @@ class Player:
     def previous(self, *args):
         self.play_track(trackdb.Stack.previous())
 
+    def runtime(self):
+        if self.playbin.clock == None:
+            return 0
+        return self.playbin.clock.get_time() - self.playbin.base_time
+
     def seeked(self, scale, scroll, value):
         self.playbin.seek_simple(Gst.Format.TIME, Gst.SeekFlags.FLUSH,
                                  value * Gst.SECOND)