[gtk+] pathbar: Fix scrolling

[Matthias Clasen <matthiasc src gnome org>]

commit ff37a04c96a249f4cd4ee0f0a2ee79887fd0ffbc
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 2 22:53:22 2012 -0500

    pathbar: Fix scrolling
    
    We need to select for scroll events on the buttons now, selecting
    for button events no longer gives us scrolling as a side-effect.

 gtk/gtkpathbar.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkpathbar.c b/gtk/gtkpathbar.c
index 5d20472..d8b9f9e 100644
--- a/gtk/gtkpathbar.c
+++ b/gtk/gtkpathbar.c
@@ -158,6 +158,7 @@ get_slider_button (GtkPathBar  *path_bar,
     atk_object_set_name (atk_obj, _("Down Path"));
 
   gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
+  gtk_widget_add_events (button, GDK_SCROLL_MASK);
   gtk_container_add (GTK_CONTAINER (button),
                      gtk_arrow_new (arrow_type, GTK_SHADOW_OUT));
   gtk_container_add (GTK_CONTAINER (path_bar), button);
@@ -1611,6 +1612,7 @@ make_directory_button (GtkPathBar  *path_bar,
   button_data->button = gtk_toggle_button_new ();
   atk_obj = gtk_widget_get_accessible (button_data->button);
   gtk_button_set_focus_on_click (GTK_BUTTON (button_data->button), FALSE);
+  gtk_widget_add_events (button_data->button, GDK_SCROLL_MASK);
 
   switch (button_data->type)
     {