[totem] main: Make it possible to call app_init multiple times

[Bastien Nocera <hadess src gnome org>]

commit 7618d6fb27d9e4ed870169b96c81a2243df2348b
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Oct 20 18:36:40 2014 +0200

    main: Make it possible to call app_init multiple times
    
    This avoids us having to look inside the app's implementation to
    know whether a window had been shown or not.

 src/totem.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/totem.c b/src/totem.c
index 7fb9b73..ce3e164 100644
--- a/src/totem.c
+++ b/src/totem.c
@@ -52,8 +52,13 @@
 static gboolean startup_called = FALSE;
 
 static void
-app_init (Totem *totem, char **argv)
+app_activate (GApplication *app,
+             Totem        *totem)
 {
+       /* Already init'ed? */
+       if (totem->xml != NULL)
+               return;
+
        /* Main window */
        totem->xml = totem_interface_load ("totem.ui", TRUE, NULL, totem);
        if (totem->xml == NULL)