gtkdnd: Use symbolic names for button numbers

diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index bcd7a29dff023eacec1059e93ab4138118391293..f77cc7ea0cf25c1b07bdac139d355873466c563a 100644 (file)
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -732,7 +732,7 @@ gtk_drag_get_event_actions (GdkEvent *event,
          break;
        }
 
-      if ((button == 2 || button == 3) && (actions & GDK_ACTION_ASK))
+      if ((button == GDK_BUTTON_MIDDLE || button == GDK_BUTTON_SECONDARY) && (actions & GDK_ACTION_ASK))
        {
          *suggested_action = GDK_ACTION_ASK;
          *possible_actions = actions;