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;;; +shr.el --- SHR extras -*- lexical-binding: t; -*-
;;; Commentary:
;;; Code:
;;; [[https://github.com/oantolin/emacs-config/blob/master/my-lisp/shr-heading.el][shr-heading]], by oantolin
(defun +shr-heading-next (&optional arg)
"Move forward by ARG headings (any h1-h4).
If ARG is negative move backwards, ARG defaults to 1."
(interactive "p")
(unless arg (setq arg 1))
(catch 'return
(dotimes (_ (abs arg))
(when (> arg 0) (end-of-line))
(if-let ((match
(funcall (if (> arg 0)
#'text-property-search-forward
#'text-property-search-backward)
'face '(shr-h1 shr-h2 shr-h3 shr-h4)
(lambda (tags face)
(cl-loop for x in (if (consp face) face (list face))
thereis (memq x tags))))))
(goto-char
(if (> arg 0) (prop-match-beginning match) (prop-match-end match)))
(throw 'return nil))
(when (< arg 0) (beginning-of-line)))
(beginning-of-line)
(point)))
(defun +shr-heading-previous (&optional arg)
"Move backward by ARG headings (any h1-h4).
If ARG is negative move forwards instead, ARG defaults to 1."
(interactive "p")
(+shr-heading-next (- (or arg 1))))
(defun +shr-heading--line-at-point ()
"Return the current line."
(buffer-substring (line-beginning-position) (line-end-position)))
(defun +shr-heading-setup-imenu ()
"Setup imenu for h1-h4 headings in eww buffer.
Add this function to appropriate major mode hooks such as
`eww-mode-hook' or `elfeed-show-mode-hook'."
(setq-local
imenu-prev-index-position-function #'+shr-heading-previous
imenu-extract-index-name-function #'+shr-heading--line-at-point))
(provide '+shr)
;;; +shr.el ends here
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