master 855928082b: Fix frame offset reporting on PGTK

[Po Lu]

branch: master
commit 855928082b31e7cf7872d389905972bce4c3d82c
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix frame offset reporting on PGTK
    
    * src/pgtkterm.c (configure_event): Handle changes in window
    position.  (bug#52697)
---
 src/pgtkterm.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/pgtkterm.c b/src/pgtkterm.c
index 9d15b671dd..e9fd5f83b7 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;
 }