[gtk+] gtkexpander: Use symbolic names for button numbers

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 76420c4793e1d7b3d8cb36fe48c6203c400c4a96
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Wed Jan 25 18:29:30 2012 +0100

    gtkexpander: Use symbolic names for button numbers

 gtk/gtkexpander.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkexpander.c b/gtk/gtkexpander.c
index ebd247d..ba1af46 100644
--- a/gtk/gtkexpander.c
+++ b/gtk/gtkexpander.c
@@ -1032,7 +1032,7 @@ gtk_expander_button_press (GtkWidget      *widget,
 {
   GtkExpander *expander = GTK_EXPANDER (widget);
 
-  if (event->button == 1 && event->window == expander->priv->event_window)
+  if (event->button == GDK_BUTTON_PRIMARY && event->window == expander->priv->event_window)
     {
       expander->priv->button_down = TRUE;
       return TRUE;
@@ -1047,7 +1047,7 @@ gtk_expander_button_release (GtkWidget      *widget,
 {
   GtkExpander *expander = GTK_EXPANDER (widget);
 
-  if (event->button == 1 && expander->priv->button_down)
+  if (event->button == GDK_BUTTON_PRIMARY && expander->priv->button_down)
     {
       gtk_widget_activate (widget);
       expander->priv->button_down = FALSE;