Automatically open headline on internal link

Question

The following example implements an internal link to a headline:

* Heading1
- Important facts
* Heading2
- Jump to [[*Heading1][Link]]

When following/opening the "Link" with C-c C-o, point moves to "Heading1". If the headline is closed, I would like it to open (unfold, expand) automatically when point lands. If the headline is already open, then do nothing (meaning, org-cycle can't be used).

Answer 1

Something like this perhaps:

(defun sw-org-unfold-headline-maybe ()
  (when (eq (car (org-element-at-point)) 'headline)
    (org-show-subtree)))

(add-hook 'org-follow-link-hook #'sw-org-unfold-headline-maybe)

The hook runs the function after the link has been followed and the function checks that it's at a headline before it unfolds it. There may be some spurious headline unfoldings though: I doubt that the function is selective enough as is.