[mutter/wip/carlosg/xdnd-drop-focus: 1/2] wayland: Specify workspace when looking for Xdnd drop target

[Carlos Garnacho <carlosg src gnome org>]

commit 8b70b8d676c5c6f312b433ff6e9ceaa6b1a62dbe
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Dec 1 12:23:34 2021 +0100

    wayland: Specify workspace when looking for Xdnd drop target
    
    The meta_stack_get_default_focus_window_at_point() function started silently
    requiring a workspace, returning always NULL otherwise. Specify the current
    workspace here.
    
    Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2042

 src/wayland/meta-xwayland-dnd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/wayland/meta-xwayland-dnd.c b/src/wayland/meta-xwayland-dnd.c
index 2b096ef443..b3b94914d3 100644
--- a/src/wayland/meta-xwayland-dnd.c
+++ b/src/wayland/meta-xwayland-dnd.c
@@ -34,6 +34,7 @@
 #include <X11/Xatom.h>
 #include <X11/extensions/Xfixes.h>
 
+#include "core/meta-workspace-manager-private.h"
 #include "meta/meta-x11-errors.h"
 #include "wayland/meta-wayland-data-device.h"
 #include "wayland/meta-xwayland-private.h"
@@ -635,12 +636,15 @@ pick_drop_surface (MetaWaylandCompositor *compositor,
                    const ClutterEvent    *event)
 {
   MetaDisplay *display = meta_get_display ();
+  MetaWorkspaceManager *workspace_manager = display->workspace_manager;
+  MetaWorkspace *workspace = workspace_manager->active_workspace;
   MetaWindow *focus_window = NULL;
   graphene_point_t pos;
 
   clutter_event_get_coords (event, &pos.x, &pos.y);
   focus_window = meta_stack_get_default_focus_window_at_point (display->stack,
-                                                               NULL, NULL,
+                                                               workspace,
+                                                               NULL,
                                                                pos.x, pos.y);
   return focus_window ? focus_window->surface : NULL;
 }