Re: Re[2]: Tooltipping enhancement request

[Jan D.]

> Here is an example of interaction.
>
> 1) User types in foo->b
> 2) User thinks, "Hmmm, what was that member again?"
> 3) Emacs becomes impatient, and pops up a list of options.
>
> Here you can now branch.
>
> b1.1) user sees the field wanted, and types some more, or presses TAB 
> for
>       completion.  Each key press updating the list.

I still don't see why this needs a timer.  But you would need to
dynamically update the popup menu while it is popped up.  I am not sure
any of the toolkits Emacs uses (GTK, Motif/Lesstif, Lucid) even 
supports it.
I think it would be better to implement these lists in a kind of
buffer/window, that appears over a window.  Enhancing the current tool 
tip
would probably break things, so other mechanisms is probably better.
I'm thinking of some sort of "overlay windows" that may appear on top of
other windows, and without the usual window manager decorations.  How to
handle input is something to figure out.  There is a bigger chance to 
get
this to work on all ports of Emacs than if popup menu code is enhanced.

> b2.1) user sees the field wanted, and clicks on it to complete.

This is more in line with what popup menus can do now.

        Jan D.