[mutter] window: Pass the grab timestamp when updating the resize grab

[Jasper St. Pierre <jstpierre src gnome org>]

commit c90765370d2aba7f413768a1089fecdeee271b59
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Dec 13 17:06:00 2012 -0500

    window: Pass the grab timestamp when updating the resize grab
    
    Since XChangeActivePointerGrab doesn't have a direct equivalent
    in XI2, we need to make sure we don't re-grab with a newer
    tiemstamp.

 src/core/display-private.h |    1 +
 src/core/display.c         |    2 ++
 src/core/window.c          |    5 +----
 3 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/core/display-private.h b/src/core/display-private.h
index e0747b2..a4636e1 100644
--- a/src/core/display-private.h
+++ b/src/core/display-private.h
@@ -211,6 +211,7 @@ struct _MetaDisplay
   GList*      grab_old_window_stacking;
   MetaEdgeResistanceData *grab_edge_resistance_data;
   unsigned int grab_last_user_action_was_snap;
+  guint32     grab_timestamp;
 
   /* we use property updates as sentinels for certain window focus events
    * to avoid some race conditions on EnterNotify events
diff --git a/src/core/display.c b/src/core/display.c
index a989a05..a99193f 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -3873,6 +3873,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
 #endif
   display->grab_frame_action = frame_action;
   display->grab_resize_unmaximize = 0;
+  display->grab_timestamp = timestamp;
 
   if (display->grab_resize_timeout_id)
     {
@@ -4058,6 +4059,7 @@ meta_display_end_grab_op (MetaDisplay *display,
     }
 #endif /* HAVE_XSYNC */
   
+  display->grab_timestamp = 0;
   display->grab_window = NULL;
   display->grab_screen = NULL;
   display->grab_xwindow = None;
diff --git a/src/core/window.c b/src/core/window.c
index 2942de6..df466af 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -9866,15 +9866,12 @@ meta_window_update_keyboard_resize (MetaWindow *window,
 
   if (update_cursor)
     {
-      guint32 timestamp;
-      /* FIXME: Using CurrentTime is really bad mojo */
-      timestamp = CurrentTime;
       meta_display_set_grab_op_cursor (window->display,
                                        NULL,
                                        window->display->grab_op,
                                        TRUE,
                                        window->display->grab_xwindow,
-                                       timestamp);
+                                       window->display->grab_timestamp);
     }
 }