bug#2149: 23.0.60; docview set slice when avoidance mode active

[MON KEY <monkey@sandpframing.com>]

Selecting from menu-bar > DocView > Set Slice ;;;doc-view-set-slice-using-mouse
I am unable to freely move the mouse over the doc to set x & y for slice.
Mouse keeps jumping back to the right fringe per avoidance settings.
*BUT* if i move across the top of the menubar and/or *very* rapidly
move the mouse to left fringe I can get a few moments of mouse trigger
time before mouse re-banishes to right.

This is not intuitive behavior. If possible, when avoidance mode is
active the menu option should not be available and/or avoidance should
be temporarily overidden when doc-view-set-slice-using-mouse has been
invoked.
-----------------------

In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.0)
 of 2009-01-28
Windowing system distributor `The X.Org Foundation', version 11.0.70200000
configured using `configure  '--with-jpeg=no''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=local
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  show-paren-mode: t
  display-time-mode: t
  auto-image-file-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  global-auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Mouse Avoidance Mode: banish
Mouse Avoidance Nudge Dist: 15
Mouse Avoidance Threshold: 5