Re: Adding text properties to all Org mode links

[Suvayu Ali <fatkasuvayu+linux@gmail.com>]

Hi Nick,

On Sat, Jul 13, 2013 at 11:01:08PM -0400, Nick Dokos wrote:
> Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:
> 
> > Hi,
> >
> > How do I add text properties to org elements?  In my particular case, I
> > want to echo tooltips when I move my cursor over an org link (or other
> > org elements for that matter).  To do this, I need to add the properties
> > point-left and point-entered to all org-links.  How do I do that?
> >
> > Thanks for any ideas.
> 
> Not sure if this is the best method:
> 
> o go to (point-min)
> o loop
>      (goto-char (cdr (org-element-link-successor (point-max))))
>      (org-element-link-parser) and extract :begin and :end values from
>      the returned list
> 
> Untested (mostly) - termination, error handling (and who knows what
> else) left to the interested reader...

I was afraid of this.  I think the safest way of not screwing up the
parsing and error handling would be to implement it as a patch to
org-activate-*-links in org.el.

I guess I should give some background info.  Lately (>1yr), I have been
using Emacs exclusively from the terminal.  In a gui, hovering the mouse
over a link shows you the target as a tooltip.  If you turn tooltip mode
off, it is shown in the echo area; but this is only in a gui frame.

I think it is very important to show where a link goes in a document.  I
consider it good a safety practise (e.g. web browsers).  Hence my
attempt to implement this feature.  :)

Cheers,

-- 
Suvayu

Open source is the future. It sets us free.