[gnome-calendar/ui-rewrite] week-view: increase ref count on parent window

[Erick Pérez Castellanos <erickpc src gnome org>]

commit 37cf2c2b88f82cfe52acb33ce4f5e7d41ae17253
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Mon Nov 3 11:55:37 2014 -0500

    week-view: increase ref count on parent window
    
    The call to GtkWidget::unrealize was destroying GtkStack window because
    of the reference increasing on GcalWeekView when setting the
    parent_window as its own.
    
    Bug: https://bugzilla.gnome.org/show_bug.cgi?id=739554

 src/gcal-week-view.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-week-view.c b/src/gcal-week-view.c
index 6c37e00..83422a9 100644
--- a/src/gcal-week-view.c
+++ b/src/gcal-week-view.c
@@ -423,6 +423,7 @@ gcal_week_view_realize (GtkWidget *widget)
 
   parent_window = gtk_widget_get_parent_window (widget);
   gtk_widget_set_window (widget, parent_window);
+  g_object_ref (parent_window);
 
   attributes.window_type = GDK_WINDOW_CHILD;
   attributes.wclass = GDK_INPUT_ONLY;