[mutter] wayland/actor-surface: Factor in mapped clones in mapped check

[Jonas Ådahl <jadahl src gnome org>]

commit 79d981aac9b0cdf19d96b47754b5f20a80e60c21
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Sun May 3 23:33:19 2020 +0200

    wayland/actor-surface: Factor in mapped clones in mapped check
    
    We started listening to notify::mapped with commit
    5eb5f724347ae8d141ef38b36565169c60c53ab1 in order to emit
    wl_surface.leave events consistently when a surface gets hidden. This
    caused a problem with the ClutterClones used in the overview, since
    those temporarily map and unmap the windows for painting, spamming
    wl_surface.leave and enter events to all surfaces.
    
    We can easily fix that by also treating mapped clones as mapped, which
    means the surface should also be on a wl_output when the overview is
    shown.
    
    Fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1141
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1235

 src/wayland/meta-wayland-actor-surface.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/wayland/meta-wayland-actor-surface.c b/src/wayland/meta-wayland-actor-surface.c
index b6c6918c3..7041aa118 100644
--- a/src/wayland/meta-wayland-actor-surface.c
+++ b/src/wayland/meta-wayland-actor-surface.c
@@ -293,7 +293,8 @@ meta_wayland_actor_surface_is_on_logical_monitor (MetaWaylandSurfaceRole *surfac
   MetaRectangle logical_monitor_layout;
   gboolean is_on_monitor;
 
-  if (!clutter_actor_is_mapped (actor))
+  if (!clutter_actor_is_mapped (actor) &&
+      !clutter_actor_has_mapped_clones (actor))
     return FALSE;
 
   clutter_actor_get_transformed_position (actor, &x, &y);