[mutter] window: Fix placement not actually placing windows

[Jasper St. Pierre <jstpierre src gnome org>]

commit b32c837df9d0ec698b7ea1d92d2e62bd2aa58dea
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu May 29 14:07:58 2014 -0400

    window: Fix placement not actually placing windows
    
    Since we often call meta_window_move_resize_now immediately after
    mapping a window, we need to make sure that the placed coordinates
    are saved in the unconstrained_rect. Ideally, placement positions
    wouldn't be part of the constraints system, but instead are just
    done inside meta_window_move_resize_internal as part of a special
    path.
    
    We're still working out the kinks of one large-scale refactor, so
    it's best not to do another one while the first is going on. This
    would be a great future cleanup, though: untangling constraints
    and placement, alongside the force_placement state machine and
    friends.

 src/core/window.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index e2a0777..7ae3dad 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -3715,6 +3715,16 @@ meta_window_move_resize_internal (MetaWindow          *window,
                              &constrained_rect);
     }
 
+  /* If we did placement, then we need to save the position that the window
+   * was placed at to make sure that meta_window_move_resize_now places the
+   * window correctly.
+   */
+  if (did_placement)
+    {
+      window->unconstrained_rect.x = constrained_rect.x;
+      window->unconstrained_rect.y = constrained_rect.y;
+    }
+
   /* Do the protocol-specific move/resize logic */
   META_WINDOW_GET_CLASS (window)->move_resize_internal (window, gravity, unconstrained_rect, 
constrained_rect, flags, &result);