Oops, I only meant to commit the changes to rationales.txt in the last commit

src/display.c

@@ -461,6 +461,7 @@ meta_display_open (const char *name)
    * created in screen_new
    */
   display->leader_window = None;
+  display->no_focus_window = None;
 
   display->xinerama_cache_invalidated = TRUE;
 
@@ -711,10 +712,7 @@ meta_display_open (const char *name)
      * as it is the most recent timestamp.
      */
     if (focus == None || focus == PointerRoot)
-      /* Just focus the no_focus_window on the first screen */
+      meta_display_focus_the_no_focus_window (display, timestamp);
-      meta_display_focus_the_no_focus_window (display,
-                                              display->screens->data,
-                                              timestamp);
     else
       {
         MetaWindow * window;
@@ -722,10 +720,7 @@ meta_display_open (const char *name)
         if (window)
           meta_display_set_input_focus_window (display, window, FALSE, timestamp);
         else
-          /* Just focus the no_focus_window on the first screen */
+          meta_display_focus_the_no_focus_window (display, timestamp);
-          meta_display_focus_the_no_focus_window (display,
-                                                  display->screens->data,
-                                                  timestamp);
       }
 
     meta_error_trap_pop (display, FALSE);
@@ -1875,7 +1870,6 @@ event_callback (XEvent   *event,
                                   "Unsetting focus from %s due to LeaveNotify\n",
                                   window->desc);
                       meta_display_focus_the_no_focus_window (display, 
-                                                              window->screen,
                                                               event->xcrossing.time);
                     }
                   if (window->type != META_WINDOW_DOCK &&
@@ -1907,8 +1901,7 @@ event_callback (XEvent   *event,
         {
           meta_window_notify_focus (window, event);
         }
-      else if (meta_display_xwindow_is_a_no_focus_window (display,
+      else if (event->xany.window == display->no_focus_window)
-                                                          event->xany.window))
         {
           meta_topic (META_DEBUG_FOCUS,
                       "Focus %s event received on no_focus_window 0x%lx "
@@ -2998,24 +2991,6 @@ meta_display_unregister_x_window (MetaDisplay *display,
   remove_pending_pings_for_window (display, xwindow);
 }
 
-gboolean
-meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
-                                           Window xwindow)
-{
-  gboolean is_a_no_focus_window = FALSE;
-  GSList *temp = display->screens;
-  while (temp != NULL) {
-    MetaScreen *screen = temp->data;
-    if (screen->no_focus_window == xwindow) {
-      is_a_no_focus_window = TRUE;
-      break;
-    }
-    temp = temp->next;
-  }
-
-  return is_a_no_focus_window;
-}
-
 Cursor
 meta_display_create_x_cursor (MetaDisplay *display,
                               MetaCursor cursor)
@@ -4846,14 +4821,13 @@ meta_display_set_input_focus_window (MetaDisplay *display,
 
 void
 meta_display_focus_the_no_focus_window (MetaDisplay *display, 
-                                        MetaScreen  *screen,
                                         Time         timestamp)
 {
   if (timestamp_too_old (display, NULL, &timestamp))
     return;
 
   XSetInputFocus (display->xdisplay,
-                  screen->no_focus_window,
+                  display->no_focus_window,
                   RevertToPointerRoot,
                   timestamp);
   display->expected_focus_window = NULL;

src/display.h

@@ -216,6 +216,11 @@ struct _MetaDisplay
                               XErrorEvent *error);  
   int server_grab_count;
 
+  /* This window holds the focus when we don't want to focus
+   * any actual clients
+   */
+  Window no_focus_window;
+  
   /* for double click */
   Time last_button_time;
   Window last_button_xwindow;
@@ -408,9 +413,6 @@ void        meta_display_register_x_window   (MetaDisplay *display,
                                               MetaWindow  *window);
 void        meta_display_unregister_x_window (MetaDisplay *display,
                                               Window       xwindow);
-/* Return whether the xwindow is a no focus window for any of the screens */
-gboolean    meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
-                                                       Window xwindow);
 
 GSList*     meta_display_list_windows        (MetaDisplay *display);
 
@@ -537,7 +539,6 @@ void meta_display_set_input_focus_window   (MetaDisplay *display,
  * same as meta_display_set_input_focus_window
  */
 void meta_display_focus_the_no_focus_window (MetaDisplay *display, 
-                                             MetaScreen  *screen,
                                              Time         timestamp);
 
 void meta_display_queue_autoraise_callback  (MetaDisplay *display,

src/keybindings.c

@@ -1451,15 +1451,11 @@ primary_modifier_still_pressed (MetaDisplay *display,
   int x, y, root_x, root_y;
   Window root, child;
   guint mask;
-  MetaScreen *random_screen;
-  Window      random_xwindow;
   
   primary_modifier = get_primary_modifier (display, entire_binding_mask);
   
-  random_screen = display->screens->data;
-  random_xwindow = random_screen->no_focus_window;
   XQueryPointer (display->xdisplay,
-                 random_xwindow, /* some random window */
+                 display->no_focus_window, /* some random window */
                  &root, &child,
                  &root_x, &root_y,
                  &x, &y,

src/screen.c

@@ -578,13 +578,15 @@ meta_screen_new (MetaDisplay *display,
   
   meta_screen_set_cursor (screen, META_CURSOR_DEFAULT);
   
-  /* Handle creating a no_focus_window for this screen */  
+  if (display->no_focus_window == None)
-  screen->no_focus_window = meta_create_offscreen_window (display->xdisplay,
+    {
+      display->no_focus_window = meta_create_offscreen_window (display->xdisplay,
                                                                screen->xroot);
-  XSelectInput (display->xdisplay, screen->no_focus_window,
+
+      XSelectInput (display->xdisplay, display->no_focus_window,
                     FocusChangeMask | KeyPressMask | KeyReleaseMask);
-  XMapWindow (display->xdisplay, screen->no_focus_window);
+      XMapWindow (display->xdisplay, display->no_focus_window);
-  /* Done with no_focus_window stuff */
+    }
   
   set_wm_icon_size_hint (screen);
   

src/screen.h

@@ -72,11 +72,6 @@ struct _MetaScreen
   
   MetaWorkspace *active_workspace;
 
-  /* This window holds the focus when we don't want to focus
-   * any actual clients
-   */
-  Window no_focus_window;
-  
   GList *workspaces;
 
   MetaStack *stack;

src/window.c

@@ -241,7 +241,7 @@ meta_window_new_with_attrs (MetaDisplay       *display,
   
   meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
 
-  if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
+  if (xwindow == display->no_focus_window)
     {
       meta_verbose ("Not managing no_focus_window 0x%lx\n",
                     xwindow);
@@ -1763,7 +1763,7 @@ meta_window_show (MetaWindow *window)
                       "ancestor.\n",
                       window->display->focus_window->desc, window->desc);
 
-          meta_display_focus_the_no_focus_window (window->display, window->screen, meta_display_get_current_time_roundtrip (window->display));
+          meta_display_focus_the_no_focus_window (window->display, meta_display_get_current_time_roundtrip (window->display));
         }
       else
         {

src/workspace.c

@@ -925,7 +925,6 @@ meta_workspace_focus_default_window (MetaWorkspace *workspace,
                       "Setting focus to no_focus_window, since no valid "
                       "window to focus found.\n");
           meta_display_focus_the_no_focus_window (workspace->screen->display,
-                                                  workspace->screen,
                                                   timestamp);
         }
     }
@@ -1015,7 +1014,6 @@ focus_ancestor_or_mru_window (MetaWorkspace *workspace,
     {
       meta_topic (META_DEBUG_FOCUS, "No MRU window to focus found; focusing no_focus_window.\n");
       meta_display_focus_the_no_focus_window (workspace->screen->display,
-                                              workspace->screen,
                                               timestamp);
     }
 }