[totem] main: Optimise session saving

[Bastien Nocera <hadess src gnome org>]

commit 589a29bb9aa7e4d1650412e9ac5512e517252d5e
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Jul 9 09:47:46 2013 +0200

    main: Optimise session saving

 src/totem-object.c  |    1 +
 src/totem-session.c |   26 ++++++++++++++------------
 src/totem-session.h |    1 +
 3 files changed, 16 insertions(+), 12 deletions(-)
---
diff --git a/src/totem-object.c b/src/totem-object.c
index a924e2a..958c695 100644
--- a/src/totem-object.c
+++ b/src/totem-object.c
@@ -1181,6 +1181,7 @@ totem_object_action_exit (TotemObject *totem)
                gdk_display_sync (display);
 
        totem_session_save (totem);
+       totem_session_cleanup (totem);
 
        if (totem->bvw)
                bacon_video_widget_close (totem->bvw);
diff --git a/src/totem-session.c b/src/totem-session.c
index d703b8b..4664c94 100644
--- a/src/totem-session.c
+++ b/src/totem-session.c
@@ -27,30 +27,27 @@
 #include "totem-session.h"
 #include "totem-uri.h"
 
+static GFile *session_file = NULL;
+
 static GFile *
 get_session_file (void)
 {
-       GFile *file;
        char *path;
 
+       if (session_file)
+               return session_file;
+
        path = g_build_filename (totem_dot_dir (), "session_state.xspf", NULL);
-       file = g_file_new_for_path (path);
+       session_file = g_file_new_for_path (path);
        g_free (path);
 
-       return file;
+       return session_file;
 }
 
 static char *
 get_session_filename (void)
 {
-       GFile *file;
-       char *uri;
-
-       file = get_session_file ();
-       uri = g_file_get_uri (file);
-       g_object_unref (file);
-
-       return uri;
+       return g_file_get_uri (get_session_file ());
 }
 
 gboolean
@@ -107,5 +104,10 @@ totem_session_save (Totem *totem)
        if (!totem_playing_dvd (totem->mrl))
                curr = bacon_video_widget_get_current_time (totem->bvw);
        totem_playlist_save_session_playlist (totem->playlist, file, curr);
-       g_object_unref (file);
+}
+
+void
+totem_session_cleanup (Totem *totem)
+{
+       g_clear_object (&session_file);
 }
diff --git a/src/totem-session.h b/src/totem-session.h
index 321c933..edee82d 100644
--- a/src/totem-session.h
+++ b/src/totem-session.h
@@ -29,6 +29,7 @@ G_BEGIN_DECLS
 
 gboolean totem_session_try_restore (Totem *totem);
 void totem_session_save (Totem *totem);
+void totem_session_cleanup (Totem *totem);
 
 G_END_DECLS