[gnome-builder/wip/greeter] greeter: destroy transient-for if its a greeter window

[Christian Hergert <chergert src gnome org>]

commit a53414a274911ea73b7657967a5e9336b565223b
Author: Christian Hergert <christian hergert me>
Date:   Sun May 10 17:14:59 2015 -0700

    greeter: destroy transient-for if its a greeter window
    
    When using the New Project from the greeter, we should destroy the parent
    as well after the project has loaded.

 src/app/gb-application-actions.c |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/src/app/gb-application-actions.c b/src/app/gb-application-actions.c
index e180921..43aa8c8 100644
--- a/src/app/gb-application-actions.c
+++ b/src/app/gb-application-actions.c
@@ -193,6 +193,7 @@ gb_application_actions_open_project_cb (GObject      *object,
   GbApplication *self = (GbApplication *)object;
   g_autoptr(GbNewProjectDialog) window = user_data;
   g_autoptr(GError) error = NULL;
+  GtkWindow *transient_for;
 
   g_assert (GB_IS_NEW_PROJECT_DIALOG (window));
 
@@ -202,8 +203,20 @@ gb_application_actions_open_project_cb (GObject      *object,
       g_warning ("%s", error->message);
     }
 
-  gtk_widget_hide (GTK_WIDGET (window));
+  transient_for = gtk_window_get_transient_for (GTK_WINDOW (window));
+
+  if (GB_IS_GREETER_WINDOW (transient_for))
+    g_object_ref (transient_for);
+  else
+    transient_for = NULL;
+
   gtk_widget_destroy (GTK_WIDGET (window));
+
+  if (transient_for != NULL)
+    {
+      gtk_widget_destroy (GTK_WIDGET (transient_for));
+      g_object_unref (transient_for);
+    }
 }
 
 static void