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Running emacs 25.2.2 spacemacs 0.200.13.

In an org file, I have defined several bookmarks(SPC f b) under different headings. Consider this:

* H1
  Some text
  Bookmark 1
* H2
  Some text
  Bookmark 2

Suppose I am in H1 narrowed and I SPC f b Bookmark 2, nothing happens.

Similarly, if I am in another buffer and I jump to Bookmark 2 when the buffer is narrowed to H1, I just switch buffer!

How do I tell emacs to adjust narrowing such that the bookmarked location is visible?

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  • 1
    I guess you need to find out what command SPC f b runs, and put an advice before it to widen the buffer.
    – John Kitchin
    Commented Oct 25, 2018 at 12:08
  • @JohnKitchin SPC f b runs helm-filtered-bookmarks. This just lists all bookmarks and one can select the one needed by typing a few characters, like other helm functions. Also, a noob here. So, will you please tell me what advice do I add and how? I have checked this (gnu.org/software/emacs/manual/html_node/elisp/…) only to get confused :)
    – deshmukh
    Commented Oct 26, 2018 at 4:28

2 Answers 2

Reset to default
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This was a lot trickier than I would have imagined. Here is the advice I finally came up with that seems to do what you want. 

(defun widen-dwim (orig-func &rest args)
  (let* ((bmk-record (car args))
     (file (bookmark-get-filename bmk-record)))
    (when file 
      (with-current-buffer (find-file-noselect file)
    (widen)))
    (apply orig-func args)
    (when (string= "org" (file-name-extension (buffer-file-name)))
      (org-show-entry))))

(advice-add 'bookmark-default-handler :around 'widen-dwim)
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3
  • Note that bmkp-goto-position is a function in Bookmark+. You may want to post equivalent or similar code that uses only what is in vanilla bookmark.el, for people who do not want/need features offered by Bookmark+
    – Drew
    Commented Oct 26, 2018 at 14:03
  • Good point. I updated the code. It works for me in a vanilla emacs.
    – John Kitchin
    Commented Oct 26, 2018 at 15:10
  • @JohnKitchin Perfect. It now goes to the bookmark as expected.
    – deshmukh
    Commented Oct 29, 2018 at 7:49
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If these are ordinary Emacs bookmarks, not something different, then you should be able to add a function to bookmark-after-jump-hook, to show the hidden stuff.

I'm no Org expert, but here's one suggestion:

(add-hook 'bookmark-after-jump-hook 'org-bookmark-jump-unhide)
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  • thanks. Yes. These are ordinary Emacs bookmarks, C-x r l shows these bookmarks. I tried your suggestion but it does not work. The cursor now goes to the end of narrowed region. Anything else that I might try?
    – deshmukh
    Commented Oct 26, 2018 at 4:36
  • Dunno. I don't use Org (ducks...). Do you mean that the cursor goes to the end of the narrowed region, which stays narrowed? If so, then clearly org-bookmark-jump-unhide is not the right function. But its doc says, at least, "Unhide the current position, to show the bookmark location." And it calls org-show-context, whose doc says, "Make sure point and context are visible..."
    – Drew
    Commented Oct 26, 2018 at 16:15
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    I am pretty sure org-bookmark-jump-unhide only deals with unhiding folded headings. That hook also happens too late to help with the narrowing issue.
    – John Kitchin
    Commented Oct 26, 2018 at 17:21

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