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#+STARTUP: align fold hidestars oddeven indent
#+TITLE: Emacs hnreader - Read Hacker News in Emacs
[[http://spacemacs.org][file:https://cdn.rawgit.com/syl20bnr/spacemacs/442d025779da2f62fc86c2082703697714db6514/assets/spacemacs-badge.svg]]
Front page:
[[file:docs/screenshot.png]]
Comments:
[[file:docs/screenshot2.png]]
* Intro
This package renders hackernews website at https://news.ycombinator.com/ in an
org buffer. Almost everything works.
The org-mode buffer feature interactive links similar to html.
Features that are not supported are account related features. You cannot add
comment, downvote or upvote.
* Install
Manual: TBD
Spacemacs layer:
https://github.com/thanhvg/spacemacs-eos
* Dependencies
~promise~ and ~request~ are required.
User must have ~org-mode~ 9.2 or later installed also.
* Commands
~hnreader-news~: Load news page.
~hnreader-past~: Load past page.
~hnreader-ask~: Load ask page.
~hnreader-show~: Load show page.
~hnreader-newest~: Load new link page.
~hnreader-more~: Load more.
~hnreader-back~: Go back to previous page.
* Remarks
Listing buffer is called ~*HN*~
Command buffer is called ~*HNComments*~
Most of links in Hacker News buffer will run elsip commands on clicking, by default
org-mode will ask you for confirmation. You can disable org confirm message on
clicking
#+begin_example elsip
(setq org-confirm-elisp-link-function nil)
#+end_example
But it is not recommended by the org-mode guide: just change it to ‘y-or-n-p’ if
you want to confirm with a single keystroke rather than having to type "yes".
* Recommended settings for eww
eww can be used to view story. You may want to set these settings for web page
display inside Emacs:
#+begin_example elsip
(setq shr-width 75)
(setq shr-use-fonts nil)
#+end_example
When displaying pictures srolling over them is jumpy. You can try this hack in
your config:
#+begin_src elisp
(with-eval-after-load "shr"
(defun shr-put-image (spec alt &optional flags)
"Insert image SPEC with a string ALT. Return image.
SPEC is either an image data blob, or a list where the first
element is the data blob and the second element is the content-type.
Hack to use `insert-sliced-image' to avoid jerky image scrolling."
(if (display-graphic-p)
(let* ((size (cdr (assq 'size flags)))
(data (if (consp spec)
(car spec)
spec))
(content-type (and (consp spec)
(cadr spec)))
(start (point))
(image (cond
((eq size 'original)
(create-image data nil t :ascent 100
:format content-type))
((eq content-type 'image/svg+xml)
(create-image data 'svg t :ascent 100))
((eq size 'full)
(ignore-errors
(shr-rescale-image data content-type
(plist-get flags :width)
(plist-get flags :height))))
(t
(ignore-errors
(shr-rescale-image data content-type
(plist-get flags :width)
(plist-get flags :height)))))))
(when image
(let* ((image-pixel-cons (image-size image t))
(image-pixel-width (car image-pixel-cons))
(image-pixel-height (cdr image-pixel-cons))
(image-scroll-rows (round (/ image-pixel-height (default-font-height)))))
;; When inserting big-ish pictures, put them at the
;; beginning of the line.
(when (and (> (current-column) 0)
(> (car (image-size image t)) 400))
(insert "\n"))
(insert-sliced-image image (or alt "*") nil image-scroll-rows 1)
;; (if (eq size 'original)
;; (insert-sliced-image image (or alt "*") nil image-scroll-rows 1)
;; (insert-image image (or alt "*")))
(put-text-property start (point) 'image-size size)
(when (and shr-image-animate
(cond ((fboundp 'image-multi-frame-p)
;; Only animate multi-frame things that specify a
;; delay; eg animated gifs as opposed to
;; multi-page tiffs. FIXME?
(cdr (image-multi-frame-p image)))
((fboundp 'image-animated-p)
(image-animated-p image))))
(image-animate image nil 60))))
image)
(insert (or alt "")))))
#+end_src
* Demo
TBD
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