From 855928082b31e7cf7872d389905972bce4c3d82c Mon Sep 17 00:00:00 2001
From: Po Lu <luangruo@yahoo.com>
Date: Tue, 8 Feb 2022 19:57:01 +0800
Subject: [PATCH] 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 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;
 }
-- 
2.39.5