[mutter] clutter/stage: Expose stage view getter helper as API

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 4abca411f3c381fbb30a86df419438cda46c8534
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon May 6 15:23:30 2019 +0200

    clutter/stage: Expose stage view getter helper as API
    
    Non-introspected and private to mutter, for getting a stage view from a
    coordinate.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/610

 clutter/clutter/clutter-mutter.h |  5 +++++
 clutter/clutter/clutter-stage.c  | 13 ++++++++-----
 2 files changed, 13 insertions(+), 5 deletions(-)
---
diff --git a/clutter/clutter/clutter-mutter.h b/clutter/clutter/clutter-mutter.h
index a53080457..e258ac0fd 100644
--- a/clutter/clutter/clutter-mutter.h
+++ b/clutter/clutter/clutter-mutter.h
@@ -43,6 +43,11 @@ void clutter_stage_capture_into (ClutterStage          *stage,
                                  cairo_rectangle_int_t *rect,
                                  uint8_t               *data);
 
+CLUTTER_EXPORT
+ClutterStageView * clutter_stage_get_view_at (ClutterStage *stage,
+                                              float         x,
+                                              float         y);
+
 CLUTTER_EXPORT
 void clutter_stage_freeze_updates (ClutterStage *stage);
 
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index f61868d52..0975f2f90 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -1586,10 +1586,13 @@ _clutter_stage_do_pick_on_view (ClutterStage     *stage,
   return retval;
 }
 
-static ClutterStageView *
-get_view_at (ClutterStage *stage,
-             float         x,
-             float         y)
+/**
+ * clutter_stage_get_view_at: (skip)
+ */
+ClutterStageView *
+clutter_stage_get_view_at (ClutterStage *stage,
+                           float         x,
+                           float         y)
 {
   ClutterStagePrivate *priv = stage->priv;
   GList *l;
@@ -1636,7 +1639,7 @@ _clutter_stage_do_pick (ClutterStage   *stage,
   if (x < 0 || x >= stage_width || y < 0 || y >= stage_height)
     return actor;
 
-  view = get_view_at (stage, x, y);
+  view = clutter_stage_get_view_at (stage, x, y);
   if (view)
     return _clutter_stage_do_pick_on_view (stage, x, y, mode, view);