[gnome-logs] Make category switching work

[Matthias Clasen <matthiasc src gnome org>]

commit d87acf2ed7bcae0c58668e364a23092c113d4c67
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Sep 30 15:13:58 2013 -0400

    Make category switching work
    
    The listbox is not a direct child of the stack. We need
    to take the scrolled window and a viewport to take into account.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=709123

 src/gl-eventview.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/gl-eventview.c b/src/gl-eventview.c
index a3b69ff..1e01182 100644
--- a/src/gl-eventview.c
+++ b/src/gl-eventview.c
@@ -281,6 +281,8 @@ on_notify_filter (GlEventView *view,
 {
     GlEventViewPrivate *priv;
     GtkStack *stack;
+    GtkWidget *scrolled;
+    GtkWidget *viewport;
 
     priv = gl_event_view_get_instance_private (view);
     stack = GTK_STACK (view);
@@ -321,7 +323,9 @@ on_notify_filter (GlEventView *view,
             break;
     }
 
-    priv->active_listbox = GTK_LIST_BOX (gtk_stack_get_visible_child (stack));
+    scrolled = gtk_stack_get_visible_child (stack);
+    viewport = gtk_bin_get_child (GTK_BIN (scrolled));
+    priv->active_listbox = GTK_LIST_BOX (gtk_bin_get_child (GTK_BIN (viewport)));
 }
 
 static void