Viewing link information

Viewing link information

[Russell Adams]

Are there other ways to view information about an org link that I
don't list below?

 - M-x org-insert-link, the prompts for link and description show the
   current values. Requires interacting with the prompts.

 - Switch to fundamental mode

 - M-x org-toggle-link-display

Are there ways to see this information live while navigating? Maybe on
the modeline, or messages?

------------------------------------------------------------------
Russell Adams                            RLAdams@AdamsInfoServ.com

PGP Key ID:     0x1160DCB3           http://www.adamsinfoserv.com/

Fingerprint:    1723 D8CA 4280 1EC9 557F  66E8 1154 E018 1160 DCB3

Re: Viewing link information

[Garjola Dindi]

On Fri 30-Oct-2020 at 17:14:37 +01, Russell Adams
<RLAdams@AdamsInfoServ.Com> wrote: 
> Are there other ways to view information about an org link that I
> don't list below?
>
>  - M-x org-insert-link, the prompts for link and description show the
>    current values. Requires interacting with the prompts.
>
>  - Switch to fundamental mode
>
>  - M-x org-toggle-link-display
>
> Are there ways to see this information live while navigating? Maybe on
> the modeline, or messages?
>

I have this in my init file. I don't remember where I got it from.

It displays the link target in the minibuffer when point is on a link. 

#+BEGIN_SRC emacs-lisp
(defvar my/org-link-target-message-timer nil
  "Variable to store the link message timer in.")

(defun my/org-link-target-show-link-messages ()
  "Turn on link messages.
You will see a message in the minibuffer when on an org link."
  (interactive)
  (or my/org-link-target-message-timer
      (setq my/org-link-target-message-timer
            (run-with-idle-timer 0.5 t
	    'my/org-link-target-link-message)
	    my/org-link-target-show-link-on-enter t)))


(defun my/org-link-target-cancel-link-messages ()
  "Stop showing messages in minibuffer when on a link."
  (interactive)
  (cancel-timer my/org-link-target-message-timer)
  (setq my/org-link-target-message-timer nil
	my/org-link-target-show-link-on-enter nil))

(setq my/org-link-target-show-link-on-enter t)

(when my/org-link-target-show-link-on-enter
  (my/org-link-target-show-link-messages))

(defun my/org-link-target-link-message ()
  "Print a minibuffer message about the link that point is on."
  (interactive)
  ;; the way links are recognized in org-element-context counts blank
  ;; spaces after a link and the closing brackets in literal links. We
  ;; don't try to get a message if the cursor is on those, or if it is
  ;; on a blank line.
  (when (not (or (looking-at " ")	;looking at a space
		 (lookinpg-at "^$")	;looking at a blank line
		 (looking-at "]")	;looking at a bracket at the end
                                        ;looking at the end of the line.
		 (looking-at "$")))

    (save-restriction
      (widen)
      (when (eq major-mode 'org-mode)
        (let* ((object (org-element-context))
               (type (org-element-property :type object))
               (link-content (org-element-property :path
               object)))
          (save-excursion
            (when (-contains? '("http" "https" "file") type)
              (message "%s:%s" type link-content))))))))
#+END_SRC

Re: Viewing link information

[Greg Minshall]

Russell,

> Are there other ways to view information about an org link that I
> don't list below?

i'll admit, this is how i do it: position cursor just before link, right
arrow, C-d: having deleted the initial '[', the rest is revealed.  then,
C-_ to undo.

Re: Viewing link information

[Maxim Nikulin]

2020-10-30 Russell Adams wrote:
> Are there other ways to view information about an org link that I
> don't list below?
...
> Are there ways to see this information live while navigating? Maybe on
> the modeline, or messages?

C-h .

Displaying links in minibuffer is regularly discussed here. E.g. the 
following message has a link to an older thread therein
https://orgmode.org/list/rjddg8$c9f$1@ciao.gmane.io/

Sometimes I think of something like footnotes or margin notes 
representation for links in the visible part of the buffer. Unsure 
however if it would be really convenient and feasible. Unlike with 
literal links option, long URLs should not distort paragraphs but no 
additional action is required to view link target.

Re: Viewing link information

[ian martins]

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There is a shortcut to copy the link here
<https://orgmode.org/worg/org-hacks.html#org98f055b>. You could display it
in the same way.

On Fri, Oct 30, 2020 at 12:15 PM Russell Adams <RLAdams@adamsinfoserv.com>
wrote:

> Are there other ways to view information about an org link that I
> don't list below?
>
>  - M-x org-insert-link, the prompts for link and description show the
>    current values. Requires interacting with the prompts.
>
>  - Switch to fundamental mode
>
>  - M-x org-toggle-link-display
>
> Are there ways to see this information live while navigating? Maybe on
> the modeline, or messages?
>
> ------------------------------------------------------------------
> Russell Adams                            RLAdams@AdamsInfoServ.com
>
> PGP Key ID:     0x1160DCB3           http://www.adamsinfoserv.com/
>
> Fingerprint:    1723 D8CA 4280 1EC9 557F  66E8 1154 E018 1160 DCB3
>
>

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Re: Viewing link information

[Maxim Nikulin]

2020-11-10 ian martins wrote:
> There is a shortcut to copy the link here 
> <https://orgmode.org/worg/org-hacks.html#org98f055b>. You could display 
> it in the same way.

It seems that original question was on viewing link, not copying it.

As to copy, another possibility (borrowed from some stackoverflow 
answer) is to use text properties:

   (let* ((prop (get-text-property (point) 'htmlize-link))
          (target (if (and (listp prop) (eq (car prop) ':uri)) (cadr 
prop))))

Maybe it is worth adding actions for particular target types, e.g 
stripping file:// to allow usage of the path in a shell command.

Re: Viewing link information

[Diego Zamboni]

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Hi Russell,

I am using Doom Emacs, and in its default Org configuration it does exactly
that: the link target is shown in the minibuffer after a brief delay, when
the cursor is on the link. A bit of investigation reveals that it's using
org-eldoc. This seems to be the code responsible for it:

https://github.com/hlissner/doom-emacs/blob/develop/modules/lang/org/config.el#L167-L171

  (defadvice! +org-display-link-in-eldoc-a (&rest _)
    "Display full link in minibuffer when cursor/mouse is over it."
    :before-until #'org-eldoc-documentation-function
    (when-let (link (org-element-property :raw-link (org-element-context)))
      (format "Link: %s" link)))

--Diego


On Fri, Oct 30, 2020 at 5:15 PM Russell Adams <RLAdams@adamsinfoserv.com>
wrote:

> Are there other ways to view information about an org link that I
> don't list below?
>
>  - M-x org-insert-link, the prompts for link and description show the
>    current values. Requires interacting with the prompts.
>
>  - Switch to fundamental mode
>
>  - M-x org-toggle-link-display
>
> Are there ways to see this information live while navigating? Maybe on
> the modeline, or messages?
>
> ------------------------------------------------------------------
> Russell Adams                            RLAdams@AdamsInfoServ.com
>
> PGP Key ID:     0x1160DCB3           http://www.adamsinfoserv.com/
>
> Fingerprint:    1723 D8CA 4280 1EC9 557F  66E8 1154 E018 1160 DCB3
>
>

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