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;;; oni-shr.el --- Shr configuration -*- lexical-binding: t; -*-
;; Copyright (C) 2019 Tom Willemse
;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2020.0430.183119
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Shr configuration.
;;; Code:
(require 'shr)
(defun oni-shr--colorize-remove-last-arg (args)
"If ARGS has more than 3 items, remove the last one."
(if (> (length args) 3)
(butlast args)
args))
(defun shr-tag-code (dom)
"Render a <code> tag from DOM."
(let ((shr-current-font 'default)
(start (point)))
(shr-generic dom)
(add-face-text-property start (point) '(:background "#222222" :box (:line-width 3 :color "#222222")))))
(defun shr-tag-h1 (dom)
"Render a <h1> tag from DOM."
(shr-heading dom '(variable-pitch (:height 1.2 :weight bold :foreground "#65a854" :underline t))))
(defun shr-tag-h2 (dom)
"Render a <h2> tag from DOM."
(shr-heading dom '(variable-pitch (:height 1.1 :weight bold :foreground "#54a8a8"))))
(defun oni-shr--recolorize (orig-fun &rest args)
"Do some custom colorization.
This should be used with ‘add-function’ with the ‘:around’
combinator. ORIG-FUN is the original function being wrapped, ARGS
are the arguments passed in to it."
(let ((start (point)))
(apply orig-fun args)
(save-excursion
(forward-line -1)
(string-rectangle start (point) " "))
(add-face-text-property start (point) '(:background "#222222"))))
(advice-add #'shr-colorize-region
:filter-args #'oni-shr--colorize-remove-last-arg)
(add-function :around (symbol-function 'shr-tag-pre) #'oni-shr--recolorize)
;;;###autoload(with-eval-after-load 'shr (require 'oni-shr))
(provide 'oni-shr)
;;; oni-shr.el ends here
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