[metacity] constraints: don't apply fullscreen workarounds for CSD windows

[Florian Müllner <fmuellner src gnome org>]

commit c4057558954c737b9b3cc2db35e67361332a558d
Author: Giovanni Campagna <gcampagn redhat com>
Date:   Thu Sep 26 10:33:06 2013 +0200

    constraints: don't apply fullscreen workarounds for CSD windows
    
    If you maximize a CSD window on a monitor without struts, it ends
    up taking the whole monitor size, but it doesn't mean that the
    application wants to fullscreen.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=708718

 src/core/constraints.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/core/constraints.c b/src/core/constraints.c
index f3a1613..7c2960c 100644
--- a/src/core/constraints.c
+++ b/src/core/constraints.c
@@ -421,9 +421,13 @@ setup_constraint_info (ConstraintInfo      *info,
                                           xinerama_info->number);
 
   /* Workaround braindead legacy apps that don't know how to
-   * fullscreen themselves properly.
+   * fullscreen themselves properly - don't get fooled by
+   * windows which are client decorated; that's not the same
+   * as fullscreen, even if there are no struts making the
+   * workarea smaller than the monitor.
    */
   if (meta_prefs_get_force_fullscreen() &&
+      window->decorated &&
       meta_rectangle_equal (new, &xinerama_info->rect) &&
       window->has_fullscreen_func &&
       !window->fullscreen)