tool-bar changes when in minibuffer

[David Reitter]

My locally defined tool-bar changes when I enter the minibuffer, e.g.  
when editing a buffer in LaTeX mode (with AUCTeX) and then doing C-c C- 
c to compile.

This seems perfectly logical given that the minibuffer is treated as a  
separate "buffer" which does not specify its own tool-bar-map.

Still, the visual effect of a changing tool-bar is distracting and  
doesn't make much sense, given that one would not normally use tool- 
bar items to edit anything in the minibuffer (I'm sure one could copy  
and paste...).

Would it be problematic to stick with previous tool-bar, but disable  
all items?  The code below illustrates what I mean.  It works, but  
ignores tool-bar items coming from the mode-map of the major mode, and  
it does not disable the items.



(defun keep-tool-bar ()
  (let ((former-tool-bar-map
         (with-current-buffer (window-buffer (minibuffer-selected-window))
           tool-bar-map)))
    (if former-tool-bar-map
        (set (make-local-variable 'tool-bar-map) former-tool-bar-map))))

(add-hook 'minibuffer-setup-hook 'keep-tool-bar)