Re: Select completions from the minibuffer

[Ergus]

On Sun, Mar 13, 2022 at 07:47:11PM +0200, Juri Linkov wrote:
> > > > >Isn't it very similar to the region?
> > > >
> > > > I don't think so... I think it is more similar to the mouse-face
> > > > feature / text property.
> > >
> > > Why do you think so?  The region is redrawn when the cursor moves, and
> > > the cursor moves as result of Emacs commands, so how is this very
> > > different from what you want?  By contrast, the mouse highlight is
> > > triggered by mouse movements that are completely independent of Emacs
> > > commands, and the implementation, as part of the display engine, is
> > > therefore quite complicated.  Whereas the region display is nowadays
> > > implemented completely in Lisp.
> >
> > Ok, then it will be similar to the code I already have in
> > completions-highlight-mode.  Essentially add/move an overlay on post
> > command hook based on some conditions.
>
> You could just add your function to the default value of
> pre-redisplay-functions, e.g.
>
>  (defvar pre-redisplay-functions (list #'redisplay--update-region-highlight
>                                        #'redisplay--update-mouse-face)
>
> where the new function 'redisplay--update-mouse-face'
> will activate the mouse-face when the cursor moves
> over the mouse-face property (only when an additional user option
> will be enabled).

Sone, please check it... I will add the extra option in a moment.