On 2024-06-04 08:59, Eli Zaretskii wrote:
> I'm not against tool-bar-always-show-default and its effect.  But
> introducing that optional behavior doesn't require any particular
> behavior from window-specific tool bars, it's almost an orthogonal
> feature.
> 
> My conclusion from this is that the two considerations you provided
> in favor of a much more complex behavior do not contradict my
> suggestion.  The first consideration is about a very rare case, which
> we could simply ignore (but if you feel strongly about  detecting
> empty tool bars and not displaying them, I won't object), while the
> second consideration  does not require the complicated behavior of
> window-specific tool bars.

This sounds like a good result.  I do think that auto-hiding the window 
tool bar when tool-bar-map is nil is very valuable and is 
straightforward to implement.

I have attached a new documentation patch describing the intended 
behavior.  If this looks good to you I can draft a patch to 
window-tool-bar.el based on all the feedback thus far.

Thanks

   -- MJF