From ca0c6bcd698c7d107d268c6665ceb0f2b2fcbcdd Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Tue, 16 Jul 2024 13:35:04 +0200
Subject: [PATCH] core: Set gravity based on grab op during window move/resize
 ops

We will basically want to follow the gravity as specified by the drag
corner/edge. Hook this up to meta_window_get_gravity().

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3972>
---
 src/core/window.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/core/window.c b/src/core/window.c
index bfe7fb902..0871aba8e 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -322,6 +322,21 @@ meta_window_real_get_client_pid (MetaWindow *window)
 static MetaGravity
 meta_window_real_get_gravity (MetaWindow *window)
 {
+  MetaWindowDrag *window_drag = NULL;
+
+  if (window->display && window->display->compositor)
+    window_drag = meta_compositor_get_current_window_drag (window->display->compositor);
+
+  if (window_drag &&
+      meta_window_drag_get_window (window_drag) == window)
+    {
+      MetaGrabOp grab_op;
+
+      grab_op = meta_window_drag_get_grab_op (window_drag);
+
+      return meta_resize_gravity_from_grab_op (grab_op);
+    }
+
   return META_GRAVITY_NONE;
 }