Revert "Remove a bunch of dead code"

This reverts commit 0d794f28f0.

I thought this was marked ACN. It wasn't.

src/core/display.c

@@ -1565,6 +1565,44 @@ meta_display_queue_autoraise_callback (MetaDisplay *display,
   display->autoraise_window = window;
 }
 
+#if 0
+static void
+handle_net_restack_window (MetaDisplay* display,
+                           XEvent *event)
+{
+  MetaWindow *window;
+
+  window = meta_display_lookup_x_window (display,
+                                         event->xclient.window);
+
+  if (window)
+    {
+      /* FIXME: The EWMH includes a sibling for the restack request, but we
+       * (stupidly) don't currently support these types of raises.
+       *
+       * Also, unconditionally following these is REALLY stupid--we should
+       * combine this code with the stuff in
+       * meta_window_configure_request() which is smart about whether to
+       * follow the request or do something else (though not smart enough
+       * and is also too stupid to handle the sibling stuff).
+       */
+      switch (event->xclient.data.l[2])
+        {
+        case Above:
+          meta_window_raise (window);
+          break;
+        case Below:
+          meta_window_lower (window);
+          break;
+        case TopIf:
+        case BottomIf:
+        case Opposite:
+          break;          
+        }
+    }
+}
+#endif
+
 /**
  * event_callback:
  * @event: The event that just happened
@@ -2412,6 +2450,11 @@ event_callback (XEvent   *event,
             else if (event->xproperty.atom ==
                      display->atom__NET_DESKTOP_NAMES)
               meta_screen_update_workspace_names (screen);
+#if 0
+            else if (event->xproperty.atom ==
+                     display->atom__NET_RESTACK_WINDOW)
+              handle_net_restack_window (display, event);
+#endif
 
             /* we just use this property as a sentinel to avoid
              * certain race conditions.  See the comment for the
@@ -3998,6 +4041,21 @@ meta_display_grab_focus_window_button (MetaDisplay *display,
 {
   /* Grab button 1 for activating unfocused windows */
   meta_verbose ("Grabbing unfocused window buttons for %s\n", window->desc);
+
+#if 0
+  /* FIXME:115072 */
+  /* Don't grab at all unless in click to focus mode. In click to
+   * focus, we may sometimes be clever about intercepting and eating
+   * the focus click. But in mouse focus, we never do that since the
+   * focus window may not be raised, and who wants to think about
+   * mouse focus anyway.
+   */
+  if (meta_prefs_get_focus_mode () != G_DESKTOP_FOCUS_MODE_CLICK)
+    {
+      meta_verbose (" (well, not grabbing since not in click to focus mode)\n");
+      return;
+    }
+#endif
   
   if (window->have_focus_click_grab)
     {