[sound-juicer/gnome-3-18] Show playback progress in EggPlayPreview

[Phillip Wood <pwood src gnome org>]

commit a7bcf9aed3d175becfe032b15010559b2dd156a1
Author: Phillip Wood <phillip wood dunelm org uk>
Date:   Fri Feb 5 20:48:51 2016 +0000

    Show playback progress in EggPlayPreview
    
    Show the time elapsed as well as the duration of the track.  Update
    the position manually rather than waiting for _seek() to do it to make
    the UI more responsive.

 src/egg-play-preview.c |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/src/egg-play-preview.c b/src/egg-play-preview.c
index 9c30251..2639212 100644
--- a/src/egg-play-preview.c
+++ b/src/egg-play-preview.c
@@ -303,7 +303,7 @@ egg_play_preview_init (EggPlayPreview *play_preview)
                                  "hexpand", TRUE,
                                  NULL);
        gtk_grid_attach (grid, priv->time_scale, 2, 0, 1, 2);
-       priv->time_label = gtk_label_new ("0:00");
+       priv->time_label = gtk_label_new ("0:00/0:00");
        g_object_set (priv->time_label,
                                  "valign", GTK_ALIGN_CENTER,
                                  NULL);
@@ -446,6 +446,7 @@ _timeout_cb (EggPlayPreview *play_preview)
        g_object_notify (G_OBJECT (play_preview), "position");
 
        gtk_range_set_value (GTK_RANGE (priv->time_scale), priv->position * (100.0 / priv->duration));
+       _ui_update_duration (play_preview);
 
        return TRUE;
 }
@@ -458,9 +459,9 @@ _ui_update_duration (EggPlayPreview *play_preview)
 
        priv = GET_PRIVATE (play_preview);
 
-       str = g_strdup_printf ("%u:%02u",
-                                                  priv->duration / 60,
-                                                  priv->duration % 60);
+       str = g_strdup_printf ("%u:%02u/%u:%02u",
+                                                  priv->position / 60, priv->position % 60,
+                                                  priv->duration / 60, priv->duration % 60);
 
        gtk_label_set_text (GTK_LABEL (priv->time_label), str);
        g_free (str);
@@ -503,8 +504,11 @@ _change_value_cb (GtkRange *range, GtkScrollType scroll, gdouble value, EggPlayP
 
        priv = GET_PRIVATE (play_preview);
 
-       if (priv->is_seekable)
-               _seek (priv->playbin, (gint) ((value / 100.0) * priv->duration));
+       if (priv->is_seekable) {
+               priv->position = (int) (value / 100.0 * priv->duration);
+               _seek (priv->playbin, priv->position);
+               _ui_update_duration (play_preview);
+       }
 
        return FALSE;
 }