0
0
Fork 1
mirror of https://git.savannah.gnu.org/git/emacs/org-mode.git synced 2024-07-15 21:46:27 +00:00
org-mode/contrib/lisp/ox-deck.el
Bastien Guerry 7513f16182 contrib/lisp/*el: Fix license information and add "This file is not part..."
Also do some aesthetic code clean-up in org-drill.el.
2013-03-10 17:57:47 +01:00

560 lines
21 KiB
EmacsLisp

;;; ox-deck.el --- deck.js Presentation Back-End for Org Export Engine
;; Copyright (C) 2013 Rick Frankel
;; Author: Rick Frankel <emacs at rickster dot com>
;; Keywords: outlines, hypermedia, slideshow
;; This file is not part of GNU Emacs.
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This library implements a deck.js presentation back-end for the Org
;; generic exporter.
;; Installation
;; -------------
;; Get a copy of deck.js from http://imakewebthings.com/deck.js/ or
;; the gitub repository at https://github.com/imakewebthings/deck.js.
;;
;; Add the path to the extracted code to the variable
;; `org-deck-directories' There are a number of customization in the
;; org-export-deck group, most of which can be overrriden with buffer
;; local customization (starting with DECK_.)
;; See ox.el and ox-html.el for more details on how this exporter
;; works (it is derived from ox-html.)
(require 'ox-html)
(eval-when-compile (require 'cl))
(org-export-define-derived-backend deck html
:menu-entry
(?d "Export to deck.js HTML Presentation"
((?H "To temporary buffer" org-deck-export-as-html)
(?h "To file" org-deck-export-to-html)
(?o "To file and open"
(lambda (a s v b)
(if a (org-deck-export-to-html t s v b)
(org-open-file (org-deck-export-to-html nil s v b)))))))
:options-alist
((:html-link-home "HTML_LINK_HOME" nil nil)
(:html-link-up "HTML_LINK_UP" nil nil)
(:html-postamble nil "html-postamble" nil t)
(:html-preamble nil "html-preamble" nil t)
(:html-head-include-default-style "HTML_INCLUDE_DEFAULT_STYLE" nil nil)
(:html-head-include-scripts "HTML_INCLUDE_SCRIPTS" nil nil)
(:deck-base-url "DECK_BASE_URL" nil org-deck-base-url)
(:deck-theme "DECK_THEME" nil org-deck-theme)
(:deck-transition "DECK_TRANSITION" nil org-deck-transition)
(:deck-include-extensions "DECK_INCLUDE_EXTENSIONS" nil
org-deck-include-extensions split)
(:deck-exclude-extensions "DECK_EXCLUDE_EXTENSIONS" nil
org-deck-exclude-extensions split))
:translate-alist
((headline . org-deck-headline)
(inner-template . org-deck-inner-template)
(item . org-deck-item)
(template . org-deck-template)))
(defgroup org-export-deck nil
"Options for exporting Org mode files to deck.js HTML Presentations."
:tag "Org Export DECK"
:group 'org-export-html)
(defcustom org-deck-directories '("./deck.js")
"Directories to search for deck.js components (jquery,
modernizr; core, extensions and themes directories.)"
:group 'org-export-deck
:type '(repeat (string :tag "Directory")))
(defun org-deck--cleanup-components (components)
(remove-duplicates
(car (remove 'nil components))
:test (lambda (x y)
(string= (file-name-nondirectory x)
(file-name-nondirectory y)))))
(defun org-deck--find-extensions ()
"Returns a unique list of all extensions found in
in the extensions directories under `org-deck-directories'"
(org-deck--cleanup-components
(mapcar ; extensions under existing dirs
(lambda (dir)
(when (file-directory-p dir) (directory-files dir t "^[^.]")))
(mapcar ; possible extension directories
(lambda (x) (expand-file-name "extensions" x))
org-deck-directories))))
(defun org-deck--find-css (type)
"Return a unique list of all the css stylesheets in the themes/TYPE
directories under `org-deck-directories'."
(org-deck--cleanup-components
(mapcar
(lambda (dir)
(let ((css-dir (expand-file-name
(concat (file-name-as-directory "themes") type) dir)))
(when (file-directory-p css-dir)
(directory-files css-dir t "\\.css$"))))
org-deck-directories)))
(defun org-deck-list-components ()
"List all available deck extensions, styles and
transitions (with full paths) to a temporary buffer."
(interactive)
(let ((outbuf (get-buffer-create "*deck.js Extensions*")))
(with-current-buffer outbuf
(erase-buffer)
(insert "Extensions\n----------\n")
(insert (mapconcat 'identity (org-deck--find-extensions) "\n"))
(insert "\n\nStyles\n------\n")
(insert (mapconcat 'identity (org-deck--find-css "style") "\n"))
(insert "\n\nTransitions\n----------\n")
(insert (mapconcat 'identity (org-deck--find-css "transition") "\n")))
(switch-to-buffer-other-window outbuf)))
(defcustom org-deck-include-extensions nil
"If non-nil, list of extensions to include instead of all available.
Can be overriden or set with the DECK_INCLUDE_EXTENSIONS property.
During output generation, the extensions found by
`org-deck--find-extensions' are searched for the appropriate
files (scripts and/or stylesheets) to include in the generated
html. The href/src attributes are created relative to `org-deck-base-url'."
:group 'org-export-deck
:type '(repeat (string :tag "Extension")))
(defcustom org-deck-exclude-extensions nil
"If non-nil, list of extensions to exclude.
Can be overriden or set with the DECK_EXCLUDE_EXTENSIONS property."
:group 'org-export-deck
:type '(repeat (string :tag "Extension")))
(defcustom org-deck-theme "swiss.css"
"deck.js theme. Can be overriden with the DECK_THEME property.
If this value contains a path component (\"/\"), it is used as a
literal path (url). Otherwise it is prepended with
`org-deck-base-url'/themes/style/."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-transition "fade.css"
"deck.js transition theme. Can be overriden with the
DECK_TRANSITION property.
If this value contains a path component (\"/\"), it is used as a
literal path (url). Otherwise it is prepended with
`org-deck-base-url'/themes/transition/."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-base-url "deck.js"
"Url prefix to deck.js base directory containing the core, extensions
and themes directories.
Can be overriden with the DECK_BASE_URL property."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-footer-template
"<h1>%author - %title</h1>"
"Format template to specify footer div.
Completed using `org-fill-template'.
Optional keys include %author, %email, %file, %title and %date.
This is included in a <footer> section."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-header-template ""
"Format template to specify page. Completed using `org-fill-template'.
Optional keys include %author, %email, %file, %title and %date.
This is included in a <header> section."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-title-page-style
"<style type='text/css'>
header, footer { left: 5px; width: 100% }
header { position: absolute; top: 10px; }
#title-slide h1 {
position: static; padding: 0;
margin-top: 10%;
-webkit-transform: none;
-moz-transform: none;
-ms-transform: none;
-o-transform: none;
transform: none;
}
#title-slide h2 {
text-align: center;
border:none;
padding: 0;
margin: 0;
}
</style>"
"CSS styles to use for title page"
:group 'org-export-deck
:type 'string)
(defcustom org-deck-title-page-template
"<div class='slide' id='title-slide'>
<h1>%title</h1>
<h2>%author</h2>
<h2>%email</h2>
<h2>%date</h2>
</div>"
"Format template to specify title page div.
Completed using `org-fill-template'.
Optional keys include %author, %email, %file, %title and %date.
Note that the wrapper div must include the class \"slide\"."
:group 'org-export-deck
:type 'string)
(defcustom org-deck-toc-style
"<style type='text/css'>
header, footer { left: 5px; width: 100% }
header { position: absolute; top: 10px; }
#table-of-contents h1 {
position: static; padding: 0;
margin-top: 10%;
-webkit-transform: none;
-moz-transform: none;
-ms-transform: none;
-o-transform: none;
Transform: none;
}
#title-slide h2 {
text-align: center;
border:none;
padding: 0;
margin: 0;
}
</style>"
"CSS styles to use for title page"
:group 'org-export-deck
:type 'string)
(defun org-deck-toc (depth info)
(concat
"<div id=\"table-of-contents\" class=\"slide\">\n"
(format "<h2>%s</h2>\n"
(org-html--translate "Table of Contents" info))
(org-html--toc-text
(mapcar
(lambda (headline)
(let* ((class (org-element-property :HTML_CONTAINER_CLASS headline))
(section-number
(when
(and (not (org-export-low-level-p headline info))
(org-export-numbered-headline-p headline info))
(concat
(mapconcat
'number-to-string
(org-export-get-headline-number headline info) ".") ". ")))
(title
(concat
section-number
(replace-regexp-in-string ; remove any links in headline...
"</?a[^>]*>" ""
(org-export-data
(org-element-property :title headline) info)))))
(cons
(if (and class (string-match-p "\\<slide\\>" class))
(format
"<a href='#outline-container-%s'>%s</a>"
(or (org-element-property :CUSTOM_ID headline)
(mapconcat
'number-to-string
(org-export-get-headline-number headline info) "-"))
title)
title)
(org-export-get-relative-level headline info))))
(org-export-collect-headlines info depth)))
"</div>\n"))
(defun org-deck--get-packages (info)
(let ((prefix (concat (plist-get info :deck-base-url) "/"))
(theme (plist-get info :deck-theme))
(transition (plist-get info :deck-transition))
(include (plist-get info :deck-include-extensions))
(exclude (plist-get info :deck-exclude-extensions))
(scripts '()) (sheets '()) (snippets '()))
(add-to-list 'scripts (concat prefix "jquery-1.7.2.min.js"))
(add-to-list 'scripts (concat prefix "core/deck.core.js"))
(add-to-list 'scripts (concat prefix "modernizr.custom.js"))
(add-to-list 'sheets (concat prefix "core/deck.core.css"))
(mapc
(lambda (extdir)
(let* ((name (file-name-nondirectory extdir))
(dir (file-name-as-directory extdir))
(path (concat prefix "extensions/" name "/"))
(base (format "deck.%s." name)))
(when (and (or (eq nil include) (member name include))
(not (member name exclude)))
(when (file-exists-p (concat dir base "js"))
(add-to-list 'scripts (concat path base "js")))
(when (file-exists-p (concat dir base "css"))
(add-to-list 'sheets (concat path base "css")))
(when (file-exists-p (concat dir base "html"))
(add-to-list 'snippets (concat dir base "html"))))))
(org-deck--find-extensions))
(if (not (string-match-p "^[[:space:]]*$" theme))
(add-to-list 'sheets
(if (file-name-directory theme) theme
(format "%sthemes/style/%s" prefix theme))))
(if (not (string-match-p "^[[:space:]]*$" transition))
(add-to-list
'sheets
(if (file-name-directory transition) transition
(format "%sthemes/transition/%s" prefix transition))))
(list :scripts (nreverse scripts) :sheets (nreverse sheets)
:snippets snippets)))
(defun org-deck-inner-template (contents info)
"Return body of document string after HTML conversion.
CONTENTS is the transcoded contents string. INFO is a plist
holding export options."
(concat contents "\n"))
(defun org-deck-headline (headline contents info)
(let ((org-html-toplevel-hlevel 2)
(class (or (org-element-property :HTML_CONTAINER_CLASS headline) ""))
(level (org-export-get-relative-level headline info)))
(when (and (= 1 level) (not (string-match-p "\\<slide\\>" class)))
(org-element-put-property headline :HTML_CONTAINER_CLASS (concat class " slide")))
(org-html-headline headline contents info)))
(defun org-deck-item (item contents info)
"Transcode an ITEM element from Org to HTML.
CONTENTS holds the contents of the item. INFO is a plist holding
contextual information.
If the containing headline has the property :slide, then
the \"slide\" class will be added to the to the list element,
which will make the list into a \"build\"."
(let ((text (org-html-item item contents info)))
(if (org-export-get-node-property :STEP item t)
(replace-regexp-in-string "^<li>" "<li class='slide'>" text)
text)))
(defun org-deck-template-alist (info)
(list
`("title" . ,(car (plist-get info :title)))
`("author" . ,(car (plist-get info :author)))
`("email" . ,(plist-get info :email))
`("date" . ,(nth 0 (plist-get info :date)))
`("file" . ,(plist-get info :input-file))))
(defun org-deck-template (contents info)
"Return complete document string after HTML conversion.
CONTENTS is the transcoded contents string. INFO is a plist
holding export options."
(let ((pkg-info (org-deck--get-packages info)))
(mapconcat
'identity
(list
"<!DOCTYPE html>"
(let ((lang (plist-get info :language)))
(mapconcat
(lambda (x)
(apply
'format
"<!--%s <html class='no-js %s' lang='%s'> %s<![endif]-->"
x))
(list `("[if lt IE 7]>" "ie6" ,lang "")
`("[if IE 7]>" "ie7" ,lang "")
`("[if IE 8]>" "ie8" ,lang "")
`("[if gt IE 8]><!-->" "" ,lang "<!--")) "\n"))
"<head>"
(org-deck--build-meta-info info)
(mapconcat
(lambda (sheet)
(format
"<link rel='stylesheet' href='%s' type='text/css' />" sheet))
(plist-get pkg-info :sheets) "\n")
"<style type='text/css'>"
"#table-of-contents a {color: inherit;}"
"#table-of-contents ul {margin-bottom: 0;}"
(when (plist-get info :section-numbers)
"#table-of-contents ul li {list-style-type: none;}")
"</style>"
""
(mapconcat
(lambda (script)
(format
"<script src='%s' type='text/javascript'></script>" script))
(plist-get pkg-info :scripts) "\n")
(org-html--build-mathjax-config info)
"<script type='text/javascript'>"
" $(document).ready(function () { $.deck('.slide'); });"
"</script>"
(org-html--build-head info)
org-deck-title-page-style
"</head>"
"<body>"
"<header class='deck-status'>"
(org-fill-template
org-deck-header-template (org-deck-template-alist info))
"</header>"
"<div class='deck-container'>"
;; title page
(org-fill-template
org-deck-title-page-template (org-deck-template-alist info))
;; toc page
(let ((depth (plist-get info :with-toc)))
(when depth (org-deck-toc depth info)))
contents
(mapconcat
(lambda (snippet)
(with-temp-buffer (insert-file-contents snippet)
(buffer-string)))
(plist-get pkg-info :snippets) "\n")
"<footer class='deck-status'>"
(org-fill-template
org-deck-footer-template (org-deck-template-alist info))
"</footer>"
"</div>"
"</body>"
"</html>\n") "\n")))
(defun org-deck--build-meta-info (info)
"Return meta tags for exported document.
INFO is a plist used as a communication channel."
(let* ((title (org-export-data (plist-get info :title) info))
(author (and (plist-get info :with-author)
(let ((auth (plist-get info :author)))
(and auth (org-export-data auth info)))))
(date (and (plist-get info :with-date)
(let ((date (plist-get info :date)))
(and date (org-export-data date info)))))
(description (plist-get info :description))
(keywords (plist-get info :keywords)))
(mapconcat
'identity
(list
(format "<title>%s</title>" title)
(format "<meta charset='%s' />"
(or (and org-html-coding-system
(fboundp 'coding-system-get)
(coding-system-get
org-html-coding-system 'mime-charset))
"iso-8859-1"))
(mapconcat
(lambda (attr)
(when (< 0 (length (car attr)))
(format "<meta name='%s' content='%s'/>\n"
(nth 1 attr) (car attr))))
(list '("Org-mode" "generator")
`(,author "author")
`(,description "description")
`(,keywords "keywords")) "")) "\n")))
(defun org-deck-export-as-html
(&optional async subtreep visible-only body-only ext-plist)
"Export current buffer to an HTML buffer.
If narrowing is active in the current buffer, only export its
narrowed part.
If a region is active, export that region.
A non-nil optional argument ASYNC means the process should happen
asynchronously. The resulting buffer should be accessible
through the `org-export-stack' interface.
When optional argument SUBTREEP is non-nil, export the sub-tree
at point, extracting information from the headline properties
first.
When optional argument VISIBLE-ONLY is non-nil, don't export
contents of hidden elements.
When optional argument BODY-ONLY is non-nil, only write code
between \"<body>\" and \"</body>\" tags.
EXT-PLIST, when provided, is a property list with external
parameters overriding Org default settings, but still inferior to
file-local settings.
Export is done in a buffer named \"*Org deck.js Export*\", which
will be displayed when `org-export-show-temporary-export-buffer'
is non-nil."
(interactive)
(if async
(org-export-async-start
(lambda (output)
(with-current-buffer (get-buffer-create "*Org deck.js Export*")
(erase-buffer)
(insert output)
(goto-char (point-min))
(nxml-mode)
(org-export-add-to-stack (current-buffer) 'deck)))
`(org-export-as 'deck ,subtreep ,visible-only ,body-only ',ext-plist))
(let ((outbuf (org-export-to-buffer
'deck "*Org deck.js Export*"
subtreep visible-only body-only ext-plist)))
;; Set major mode.
(with-current-buffer outbuf (nxml-mode))
(when org-export-show-temporary-export-buffer
(switch-to-buffer-other-window outbuf)))))
(defun org-deck-export-to-html
(&optional async subtreep visible-only body-only ext-plist)
"Export current buffer to a deck.js HTML file.
If narrowing is active in the current buffer, only export its
narrowed part.
If a region is active, export that region.
A non-nil optional argument ASYNC means the process should happen
asynchronously. The resulting file should be accessible through
the `org-export-stack' interface.
When optional argument SUBTREEP is non-nil, export the sub-tree
at point, extracting information from the headline properties
first.
When optional argument VISIBLE-ONLY is non-nil, don't export
contents of hidden elements.
When optional argument BODY-ONLY is non-nil, only write code
between \"<body>\" and \"</body>\" tags.
EXT-PLIST, when provided, is a property list with external
parameters overriding Org default settings, but still inferior to
file-local settings.
Return output file's name."
(interactive)
(let* ((extension (concat "." org-html-extension))
(file (org-export-output-file-name extension subtreep))
(org-export-coding-system org-html-coding-system))
(if async
(org-export-async-start
(lambda (f) (org-export-add-to-stack f 'deck))
(let ((org-export-coding-system org-html-coding-system))
`(expand-file-name
(org-export-to-file
'deck ,file ,subtreep ,visible-only ,body-only ',ext-plist))))
(let ((org-export-coding-system org-html-coding-system))
(org-export-to-file
'deck file subtreep visible-only body-only ext-plist)))))
(defun org-deck-publish-to-html (plist filename pub-dir)
"Publish an org file to deck.js HTML Presentation.
FILENAME is the filename of the Org file to be published. PLIST
is the property list for the given project. PUB-DIR is the
publishing directory. Returns output file name."
(org-publish-org-to 'deck filename ".html" plist pub-dir))
(provide 'ox-deck)