bug#43609: 28.0.50; eldoc-documentation-function [vs new eldoc-display-functions]

[martin rudalics]

>> I have to use it in practice before I can tell whether it works.  Back
>> then, it took me some time to make the code do what I meant - put the
>> tooltip in the right place of the window, move away the mouse cursor if
>> necessary ...
>
> As far as I know, I didn't change any of this tooltip behaviour.
> All I changed is the when and with what information the tooltip is
> displayed to the user.  So there's a relatively low chance of
> those characteristics having been affected severely.

Both, the "when" and the "what" may affect the underlying behavior in
various ways.  I use eldoc tooltips for quite some time now but only in
the restricted environment of my private editing.  Many external changes
have never interested me.

For example, I recently noticed that the tab bar line introduced last
year can affect the positioning of the tooltip and I still have not
found out whether the problem is in 'pos-visible-in-window-p' or in my
code.  So before I can put that code into eldoc.el, I may also have to
resolve problems not or only tangentially related to your changes.

martin