Re: Suggesting `frame-split-biggest-window' Re: customize location and shape of a new window in a frame

On Thu Sep 13 2018 N. Jackson wrote:
> Yes, looking at bbdb.el, there is a `horiz-p' argument to
> `bbdb-pop-up-window' which it gets passed from
> `bbdb-display-records', but the latter function never sets it but
> merely passes it through from it's argument list. And it does not
> seem to ever be set in any call to `bbdb-display-records'.
> 
> So maybe `horiz-p' is a solution, but it will not work in current
> BBDB. (Looking at BBDB 3.2 from GNU Elpa).

The function bbdb-mua-window-p is doing the job of setting the arg
horiz-p at various places in bbdb-mua.el (which, in the end, always
becomes the arg horiz-p of bbdb-display-records).

So a solution would be to make the function bbdb-mua-window-p
customizable, say, by providing a user variable bbdb-mua-window-p
that can hold a custom function instead of using the function
bbdb-mua-window-p.