Robustify tracking of pointer grab window.

Robustify tracking of pointer grab window.

Fri Mar  1 18:39:44 2002  Owen Taylor  <otaylor@redhat.com>

        * gdk/x11/{gdkevents-x11.c,gdkmain-x11.c,gdkprivate-x11.h,
        gdkwindow-x11.c}: Robustify tracking of pointer grab window.

        * gdk/x11/gdkmain-x11.c: Keep track of current keyboard
        grab window.

        * gdk/x11/gdkmain-x11.c (gdk_pointer_grab_info_libgtk_only,
        gdk_keyboard_grab_info_libgtk_only): Private libgtk => libgtk
        API for finding out current grab information.

        * gtk/gtkmain.c (rewrite_event_for_grabs): Rewrite events
        so that the effective behavior of owner_events = TRUE is changed
        to "deliver events to same window group normally" instead
        of "deliver events to same application normally. #69934

        * gtk/gtkrange.c: Use an explicit gtk_grab_add() so that
        it works within the GtkList combo, where there is a
        owner_events = FALSE gdk_pointer_grab() already in effect.
        (#65006, reported by Damon Chaplin)