[gnome-music/wip/jfelder/smoothscale-first-run] smoothscale: Workaround to update position on first run

[Jean Felder <jfelder src gnome org>]

commit 8fcece8a98ae972ec60819ccbdaf9a0a6090e4e8
Author: Jean Felder <jfelder src gnome org>
Date:   Mon Mar 18 17:22:37 2019 +0100

    smoothscale: Workaround to update position on first run
    
    The first duration and position changes from GstPlayer are not being
    emitted. Hence, the scale position update is not initialized properly
    during the first song.
    
    Updating the position once the position is correctly set fixes the
    issue.

 gnomemusic/widgets/smoothscale.py | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gnomemusic/widgets/smoothscale.py b/gnomemusic/widgets/smoothscale.py
index 103ff800..0fa4dc8d 100644
--- a/gnomemusic/widgets/smoothscale.py
+++ b/gnomemusic/widgets/smoothscale.py
@@ -116,6 +116,7 @@ class SmoothScale(Gtk.Scale):
         if duration != -1.:
             self.set_range(0.0, duration * 60)
             self.set_increments(300, 600)
+            self._update_position_callback()
 
     @log
     def _on_smooth_scale_seek_finish(self, value):