From 52e3b8838240c01b416783372703bf4ad9045c1d Mon Sep 17 00:00:00 2001
From: "Jasper St. Pierre" <jstpierre@mecheye.net>
Date: Mon, 27 Oct 2014 21:18:15 -0700
Subject: [PATCH] gdkwindow: Specify some invariants for cursors

Cursors should not be on a different display than their window /
device, as that would break Wayland.
---
 gdk/gdkwindow.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index c0186aa74f..1f05aff3ef 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -6015,6 +6015,9 @@ gdk_window_set_cursor_internal (GdkWindow *window,
   if (GDK_WINDOW_DESTROYED (window))
     return;
 
+  g_assert (gdk_window_get_display (window) == gdk_device_get_display (device));
+  g_assert (!cursor || gdk_window_get_display (window) == gdk_cursor_get_display (cursor));
+
   if (window->window_type == GDK_WINDOW_ROOT ||
       window->window_type == GDK_WINDOW_FOREIGN)
     GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_device_cursor (window, device, cursor);