[gtk+] wayland: Clear current cusor on leave so we always set it on enter

[Kristian Høgsberg <krh src gnome org>]

commit a80998127ce779b156df50e8d1ebaa4eedab31b5
Author: Kristian Høgsberg <krh bitplanet net>
Date:   Thu Mar 21 08:51:35 2013 -0400

    wayland: Clear current cusor on leave so we always set it on enter
    
    Commit 0d9d808217a04ee965ce5f60f9aff00b2ec4938e fixed the hotspot issue,
    but commit f2cc52fddd74b3064eec85e17161ebbc4ee14f49 then optimized away
    cursor changes a little too aggressively.  We always need to set the
    cursor on enter.  Make sure we clear the current cursor on leave so we
    don't think it's already set on the next enter.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=695512

 gdk/wayland/gdkdevice-wayland.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index 3cdf938..7bf2e05 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -622,6 +622,12 @@ pointer_handle_leave (void              *data,
                        device, device->pointer_focus));
 
   g_object_unref(device->pointer_focus);
+  if (device->cursor)
+    {
+      g_object_unref (device->cursor);
+      device->cursor = NULL;
+    }
+
   device->pointer_focus = NULL;
 }