Fix frame offset reporting on PGTK

* src/pgtkterm.c (configure_event): Handle changes in window
position.  (bug#52697)

1 files changed, 10 insertions, 0 deletions

diff --git a/src/pgtkterm.c b/src/pgtkterm.c
index 9d15b671dd2..e9fd5f83b72 100644
--- a/src/pgtkterm.c
+++ b/src/pgtkterm.c
@@ -5536,6 +5536,7 @@ configure_event (GtkWidget *widget,
                  gpointer *user_data)
 {
   struct frame *f = pgtk_any_window_to_frame (event->configure.window);
+
   if (f && widget == FRAME_GTK_OUTER_WIDGET (f))
     {
       if (any_help_event_p)
@@ -5548,6 +5549,15 @@ configure_event (GtkWidget *widget,
           help_echo_string = Qnil;
           gen_help_event (Qnil, frame, Qnil, Qnil, 0);
         }
+
+      if (f->win_gravity == NorthWestGravity)
+        gtk_window_get_position (GTK_WINDOW (widget),
+                                 &f->top_pos, &f->left_pos);
+      else
+        {
+          f->top_pos = event->configure.y;
+          f->left_pos = event->configure.x;
+        }
     }
   return FALSE;
 }