[gtk+] x11: Add extra debug spew on XI2 crossing and button events

[Carlos Garnacho <carlosg src gnome org>]

commit 962415aeb7e9e47f61c006a5d817a15d181c5055
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Nov 17 00:14:06 2013 +0100

    x11: Add extra debug spew on XI2 crossing and button events
    
    This information will be useful in case someone stumbles on a situation
    similar to https://bugzilla.gnome.org/show_bug.cgi?id=699574, so we can
    figure out where do the crossing events come from or go to easily.

 gdk/x11/gdkdevicemanager-xi2.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/gdk/x11/gdkdevicemanager-xi2.c b/gdk/x11/gdkdevicemanager-xi2.c
index a2897b4..7dba5a6 100644
--- a/gdk/x11/gdkdevicemanager-xi2.c
+++ b/gdk/x11/gdkdevicemanager-xi2.c
@@ -1221,6 +1221,15 @@ gdk_x11_device_manager_xi2_translate_event (GdkEventTranslator *translator,
         XIDeviceEvent *xev = (XIDeviceEvent *) ev;
         GdkDevice *source_device;
 
+        GDK_NOTE (EVENTS,
+                  g_message ("button %s:\twindow %ld\n\tdevice:%u\n"
+                             "\tsource device:%u\n\tbutton number: %u\n"
+                             "\tx,y: %.2f %.2f",
+                             (ev->evtype == XI_ButtonPress) ? "press" : "release",
+                             xev->event, xev->detail,
+                             xev->deviceid, xev->sourceid,
+                             xev->event_x, xev->event_y));
+
         if (ev->evtype == XI_ButtonRelease &&
             (xev->detail >= 4 && xev->detail <= 7))
           return FALSE;
@@ -1547,6 +1556,15 @@ gdk_x11_device_manager_xi2_translate_event (GdkEventTranslator *translator,
         XIEnterEvent *xev = (XIEnterEvent *) ev;
         GdkDevice *device, *source_device;
 
+        GDK_NOTE (EVENTS,
+                  g_message ("%s notify:\twindow %ld\n\tsubwindow:%ld\n"
+                             "\tdevice: %u\n\tsource device: %u\n"
+                             "\tnotify type: %u\n\tcrossing mode: %u",
+                             (ev->evtype == XI_Enter) ? "enter" : "leave",
+                             xev->event, xev->child,
+                             xev->deviceid, xev->sourceid,
+                             xev->detail, xev->mode));
+
         event->crossing.type = (ev->evtype == XI_Enter) ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY;
 
         event->crossing.x = (gdouble) xev->event_x / scale;