Fix a bug in focus tracking when we move between has_pointer_focus and

Fix a bug in focus tracking when we move between has_pointer_focus and

2005-05-04  Owen Taylor  <otaylor@redhat.com>

        * gdk/x11/gdkevents-x11.c gdk/x11/gdkwindow-x11.h: Fix a bug
        in focus tracking when we move between has_pointer_focus and
        has_focus_window directly. (#109246, Billy Biggs, Niko Tyni
        and others)

        * gdk/x11/gdkevents-x11.c: Also fix some extremely confusion
        that could happen in the case of no window manager + keyboard grabs,
        by moving to a more consistent model of when we pay attention
        to mode=NotifyGrab/NotifyUngrab events.

        * docs/focus_tracking.txt: Extensive writeup about how to track
        focus under X11