[totem/wip/hadess/mpris-can-go-next: 2/5] main: Add can_seek_{previous, next} API

[Bastien Nocera <hadess src gnome org>]

commit 45eac192579a98ce3a280091e5f0b25d4d039c33
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 14 03:34:59 2019 +0100

    main: Add can_seek_{previous,next} API

 src/totem-object.c | 28 ++++++++++++++++++++++++++++
 src/totem.h        |  2 ++
 2 files changed, 30 insertions(+)
---
diff --git a/src/totem-object.c b/src/totem-object.c
index f55514f19..4dd5485d0 100644
--- a/src/totem-object.c
+++ b/src/totem-object.c
@@ -1933,6 +1933,20 @@ totem_object_direction (TotemObject *totem, TotemPlaylistDirection dir)
        }
 }
 
+/**
+ * totem_object_can_seek_previous:
+ * @totem: a #TotemObject
+ *
+ * Returns true if totem_object_seek_previous() would have an effect.
+ */
+gboolean
+totem_object_can_seek_previous (TotemObject *totem)
+{
+       return bacon_video_widget_has_previous_track (totem->bvw) ||
+               totem_playlist_has_previous_mrl (totem->playlist) ||
+               totem_playlist_get_repeat (totem->playlist);
+}
+
 /**
  * totem_object_seek_previous:
  * @totem: a #TotemObject
@@ -1947,6 +1961,20 @@ totem_object_seek_previous (TotemObject *totem)
        totem_object_direction (totem, TOTEM_PLAYLIST_DIRECTION_PREVIOUS);
 }
 
+/**
+ * totem_object_can_seek_next:
+ * @totem: a #TotemObject
+ *
+ * Returns true if totem_object_seek_next() would have an effect.
+ */
+gboolean
+totem_object_can_seek_next (TotemObject *totem)
+{
+       return bacon_video_widget_has_next_track (totem->bvw) ||
+               totem_playlist_has_next_mrl (totem->playlist) ||
+               totem_playlist_get_repeat (totem->playlist);
+}
+
 /**
  * totem_object_seek_next:
  * @totem: a #TotemObject
diff --git a/src/totem.h b/src/totem.h
index 926e8bfe5..69649e0ef 100644
--- a/src/totem.h
+++ b/src/totem.h
@@ -168,7 +168,9 @@ void        totem_object_play                       (TotemObject *totem);
 void   totem_object_stop                       (TotemObject *totem);
 void   totem_object_play_pause                 (TotemObject *totem);
 void   totem_object_pause                      (TotemObject *totem);
+gboolean totem_object_can_seek_next            (TotemObject *totem);
 void   totem_object_seek_next                  (TotemObject *totem);
+gboolean totem_object_can_seek_previous                (TotemObject *totem);
 void   totem_object_seek_previous              (TotemObject *totem);
 void   totem_object_seek_time                  (TotemObject *totem, gint64 msec, gboolean accurate);
 void   totem_object_seek_relative              (TotemObject *totem, gint64 offset, gboolean accurate);