[totem] main: Save session every 10 seconds

[Bastien Nocera <hadess src gnome org>]

commit e869f1f8ddb7e7f07d42053d4eb03474048c35df
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Jul 9 10:27:32 2013 +0200

    main: Save session every 10 seconds
    
    So that we can restore the currently playing video if we crash.

 src/totem-object.c  |   28 ++++++++++++++++++++++++++++
 src/totem-private.h |    1 +
 2 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/src/totem-object.c b/src/totem-object.c
index 9023886..c49c76f 100644
--- a/src/totem-object.c
+++ b/src/totem-object.c
@@ -80,6 +80,8 @@
 #define DEFAULT_WINDOW_W 650
 #define DEFAULT_WINDOW_H 500
 
+#define TOTEM_SESSION_SAVE_TIMEOUT 10 /* seconds */
+
 /* casts are to shut gcc up */
 static const GtkTargetEntry target_table[] = {
        { (gchar*) "text/uri-list", 0, 0 },
@@ -653,6 +655,27 @@ add_to_playlist_and_play_cb (TotemPlaylist *playlist, GAsyncResult *async_result
        g_slice_free (AddToPlaylistData, data);
 }
 
+static gboolean
+save_session_timeout_cb (Totem *totem)
+{
+       totem_session_save (totem);
+       return TRUE;
+}
+
+static void
+setup_save_timeout_cb (Totem    *totem,
+                      gboolean  enable)
+{
+       if (enable && totem->save_timeout_id == 0) {
+               totem->save_timeout_id = g_timeout_add_seconds (TOTEM_SESSION_SAVE_TIMEOUT,
+                                                               (GSourceFunc) save_session_timeout_cb,
+                                                               totem);
+       } else if (totem->save_timeout_id > 0) {
+               g_source_remove (totem->save_timeout_id);
+               totem->save_timeout_id = 0;
+       }
+}
+
 /**
  * totem_object_add_to_playlist_and_play:
  * @totem: a #TotemObject
@@ -880,6 +903,8 @@ static void
 emit_file_opened (TotemObject *totem,
                   const char *mrl)
 {
+       totem_session_save (totem);
+       setup_save_timeout_cb (totem, TRUE);
        g_signal_emit (G_OBJECT (totem),
                       totem_table_signals[FILE_OPENED],
                       0, mrl);
@@ -894,6 +919,8 @@ emit_file_opened (TotemObject *totem,
 static void
 emit_file_closed (TotemObject *totem)
 {
+       setup_save_timeout_cb (totem, FALSE);
+       totem_session_save (totem);
        g_signal_emit (G_OBJECT (totem),
                       totem_table_signals[FILE_CLOSED],
                       0);
@@ -1166,6 +1193,7 @@ totem_object_action_exit (TotemObject *totem)
        if (display != NULL)
                gdk_display_sync (display);
 
+       setup_save_timeout_cb (totem, FALSE);
        totem_session_cleanup (totem);
 
        if (totem->bvw)
diff --git a/src/totem-private.h b/src/totem-private.h
index f524a24..ec9f1b1 100644
--- a/src/totem-private.h
+++ b/src/totem-private.h
@@ -138,6 +138,7 @@ struct _TotemObject {
 
        /* session */
        gint64 seek_to_start;
+       guint save_timeout_id;
 
        /* Window State */
        int window_w, window_h;