org-num: Clear numbering overlays upon changing major mode

* lisp/org-num.el (org-num--clear): New function.
(org-num-mode): Use new function.

Reported-by: stardiviner <numbchild@gmail.com>
<http://lists.gnu.org/r/emacs-orgmode/2019-01/msg00088.html>
This commit is contained in:
Nicolas Goaziou 2019-01-09 23:25:57 +01:00
parent c006a60fac
commit fa71fdbb53
1 changed files with 10 additions and 4 deletions

View File

@ -184,6 +184,11 @@ Update `org-num--invalid-flag' accordingly."
(overlay-put o 'org-num 'invalid)
(setq org-num--invalid-flag t))
(defun org-num--clear ()
"Remove all numbering overlays in current buffer."
(mapc #'delete-overlay org-num--overlays)
(setq org-num--overlays nil))
(defun org-num--make-overlay (numbering level skip)
"Return overlay for numbering headline at point.
@ -444,11 +449,12 @@ NUMBERING is a list of numbers."
(user-error "Cannot activate headline numbering outside Org mode"))
(setq org-num--numbering nil)
(setq org-num--overlays (nreverse (org-num--number-region nil nil)))
(add-hook 'after-change-functions #'org-num--verify nil t))
(add-hook 'after-change-functions #'org-num--verify nil t)
(add-hook 'change-major-mode-hook #'org-num--clear nil t))
(t
(mapc #'delete-overlay org-num--overlays)
(setq org-num--overlays nil)
(remove-hook 'after-change-functions #'org-num--verify t))))
(org-num--clear)
(remove-hook 'after-change-functions #'org-num--verify t)
(remove-hook 'change-major-mode-hook #'org-num--clear t))))
(provide 'org-num)