[mutter] window: ignore skip-taskbar hint on parentless dialogs

[Giovanni Campagna <gcampagna src gnome org>]

commit eeed3d605ba3b0b257591e2bd46536936f876630
Author: Giovanni Campagna <gcampagn redhat com>
Date:   Mon Aug 26 14:47:10 2013 +0200

    window: ignore skip-taskbar hint on parentless dialogs
    
    Dialogs that don't have a parent should not be skip-taskbar,
    otherwise they get lost and there is no way to recover them
    (because they're not autoraised when activating the parent),
    but toolkits and applications set the hint anyway.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=673399

 src/core/window.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 5e7b3c9..b109ec3 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -8395,10 +8395,13 @@ recalc_window_features (MetaWindow *window)
 
     case META_WINDOW_DIALOG:
     case META_WINDOW_MODAL_DIALOG:
-      /* only skip taskbar if we have a real transient parent */
+      /* only skip taskbar if we have a real transient parent
+         (and ignore the application hints) */
       if (window->xtransient_for != None &&
           window->xtransient_for != window->screen->xroot)
         window->skip_taskbar = TRUE;
+      else
+        window->skip_taskbar = FALSE;
       break;
 
     case META_WINDOW_NORMAL: