[mutter] Lower a window and all its transients as a unit

[Maxim Ermilov <mermilov src gnome org>]

commit bb1ab0afd9ee19259d4d10fbe40cd3361f447d46
Author: Maxim Ermilov <zaspire rambler ru>
Date:   Sat Sep 11 05:00:15 2010 +0400

    Lower a window and all its transients as a unit
    
    It's strange to leave transients windows around, after ancestor window was
    lowered and unfocused.
    https://bugzilla.gnome.org/show_bug.cgi?id=612726

 src/core/core.c |   35 ++++++++++++++++++++++++-----------
 1 files changed, 24 insertions(+), 11 deletions(-)
---
diff --git a/src/core/core.c b/src/core/core.c
index 6fd2edd..9464b0d 100644
--- a/src/core/core.c
+++ b/src/core/core.c
@@ -260,15 +260,14 @@ meta_core_user_raise (Display *xdisplay,
   meta_window_raise (window);
 }
 
-void
-meta_core_user_lower_and_unfocus (Display *xdisplay,
-                                  Window   frame_xwindow,
-                                  guint32  timestamp)
+static gboolean
+lower_window_and_transients (MetaWindow *window,
+                             gpointer   data)
 {
-  MetaWindow *window = get_window (xdisplay, frame_xwindow);
-  
   meta_window_lower (window);
 
+  meta_window_foreach_transient (window, lower_window_and_transients, NULL);
+
   if (meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK &&
       meta_prefs_get_raise_on_click ())
     {
@@ -296,11 +295,25 @@ meta_core_user_lower_and_unfocus (Display *xdisplay,
         }
     }
 
-  /* focus the default window, if needed */
-  if (window->has_focus)
-    meta_workspace_focus_default_window (window->screen->active_workspace,
-                                         NULL,
-                                         timestamp);
+  return FALSE;
+}
+
+void
+meta_core_user_lower_and_unfocus (Display *xdisplay,
+                                  Window   frame_xwindow,
+                                  guint32  timestamp)
+{
+  MetaWindow *window = get_window (xdisplay, frame_xwindow);
+
+  lower_window_and_transients (window, NULL);
+
+ /* Rather than try to figure that out whether we just lowered
+  * the focus window, assume that's always the case. (Typically,
+  * this will be invoked via keyboard action or by a mouse action;
+  * in either case the window or a modal child will have been focused.) */
+  meta_workspace_focus_default_window (window->screen->active_workspace,
+                                       NULL,
+                                       timestamp);
 }
 
 void