[gtk+/gtk-3-22] wayland: Clear tablet tool cursor on proximity out

[Carlos Garnacho <carlosg src gnome org>]

commit b53a6fb092590f157ba61ee66aa9970fb5cdeb51
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jul 25 15:44:30 2017 +0200

    wayland: Clear tablet tool cursor on proximity out
    
    This ensures that the tablet tool will get the cursor updated even if it
    happens to fall within the same window again on the next proximity in.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785375

 gdk/wayland/gdkdevice-wayland.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index f3bf2b4..739572e 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -3631,6 +3631,7 @@ tablet_tool_handle_proximity_out (void                      *data,
   tablet->pointer_info.focus = NULL;
 
   gdk_device_update_tool (tablet->current_device, NULL);
+  g_clear_object (&tablet->pointer_info.cursor);
 }
 
 static void