[gtk+] gdk: Don't treat touch events as button events

[Matthias Clasen <matthiasc src gnome org>]

commit 11fdf1667c991f967d85d3deb199352db306a739
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Feb 26 00:04:39 2012 -0500

    gdk: Don't treat touch events as button events
    
    One more place where we assumed that touch events have a button
    field.

 gdk/gdkwindow.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 3478502..83a926b 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -9982,6 +9982,9 @@ _gdk_windowing_got_event (GdkDisplay *display,
       if (event->type == GDK_BUTTON_PRESS ||
           event->type == GDK_BUTTON_RELEASE)
         pointer_info->button = event->button.button;
+      else if (event->type == GDK_TOUCH_BEGIN ||
+               event->type == GDK_TOUCH_END)
+        pointer_info->button = 1;
 
       if (device &&
           (pointer_info->state != old_state ||