Re: How to display overlay or propertize text on file: link type about the file?

[John Kitchin]

I think you are looking for the :activate-func property of a link. What
you want is somewhat tricky though, how would you edit the link?

There is an example at
https://kitchingroup.cheme.cmu.edu/blog/2016/11/04/New-link-features-in-org-9/#org069cbfa

that might give you some ideas. You can use a 'display text property to
change the appearance, but you need some way to remove this if you want
to edit or see the original version.

stardiviner <address@hidden> writes:

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> Hash: SHA256
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>
> I have a requirement, I want to display file: link's file type info on the 
> link.
>
> For example, an Org file: link
>
> #+begin_src org
> [[file:~/Org/logo.png][logo]]
> [[file:~/Org/document.pdf][document]]
> [[file:~/Org/book.epub][book]]
> #+end_src
>
> I want to display link as:
>
> #+begin_src org
> logo (image: png)
> document (document: pdf)
> book (ebook: epub)
> #+end_src
>
> I'm inspired by this code snippet:
>
> #+begin_src emacs-lisp
> (org-link-set-parameters
>  "file+sys"
>  :complete 'org-file-complete-link
>  :face (lambda (path) (if (file-exists-p path) 'org-link 'org-warning)))
> #+end_src
>
> Is it possible to display those info between parentheses with an overlay or
> propertied text?
>
> If someone have any idea or how to implement this, please help me. Thanks in 
> advanced.
>
> - --
> [ stardiviner ]
>        I try to make every word tell the meaning what I want to express.
>
>        Blog: https://stardiviner.github.io/
>        IRC(freenode): stardiviner, Matrix: stardiviner
>        GPG: F09F650D7D674819892591401B5DF1C95AE89AC3
>
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--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu