[nautilus/wip/antoniof/gnome-42: 60/72] Revert "files-view: Drop unused vfunc"

[António Fernandes <antoniof src gnome org>]

commit b3d750533160795cf779ba7f0e13e57117e16424
Author: Ondrej Holy <oholy redhat com>
Date:   Fri Feb 11 14:28:44 2022 +0100

    Revert "files-view: Drop unused vfunc"
    
    This reverts commit bfc9d4ed4e19e9c76ab715a433a8c800a2e6423d.

 src/nautilus-files-view.h | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/src/nautilus-files-view.h b/src/nautilus-files-view.h
index 32ac9937c..acd01d5d8 100644
--- a/src/nautilus-files-view.h
+++ b/src/nautilus-files-view.h
@@ -199,6 +199,15 @@ struct _NautilusFilesViewClass {
          */
         gboolean (* is_empty)                (NautilusFilesView *view);
 
+        /* convert *point from widget's coordinate system to a coordinate
+         * system used for specifying file operation positions, which is view-specific.
+         *
+         * This is used by the the icon view, which converts the screen position to a zoom
+         * level-independent coordinate system.
+         */
+        void (* widget_to_file_operation_position) (NautilusFilesView *view,
+                                                    GdkPoint     *position);
+
         /* Preference change callbacks, overridden by icon and list views.
          * Icon and list views respond by synchronizing to the new preference
          * values and forcing an update if appropriate.