[gtk+/gtk-3-4] GtkToolbar: Prevent accidental drag starts

[Matthias Clasen <matthiasc src gnome org>]

commit 8190fae7f1b1cda1e979e3e5498174eb2f599e14
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jul 15 00:56:46 2012 -0400

    GtkToolbar: Prevent accidental drag starts
    
    We don't want to start drags on double- or triple clicks, and
    doing so causes problems for embedded range widgets.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=675535

 gtk/gtktoolbar.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktoolbar.c b/gtk/gtktoolbar.c
index 3974810..c603878 100644
--- a/gtk/gtktoolbar.c
+++ b/gtk/gtktoolbar.c
@@ -2749,6 +2749,9 @@ gtk_toolbar_button_press (GtkWidget      *toolbar,
       return return_value;
     }
 
+  if (event->type != GDK_BUTTON_PRESS)
+    return FALSE;
+
   window = gtk_widget_get_toplevel (toolbar);
 
   if (window)