;;; org-wl.el --- Support for links to Wanderlust messages from within Org-mode
;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
;; Free Software Foundation, Inc.
;; Author: Tokuya Kameshima <kames at fa2 dot so-net dot ne dot jp>
;; David Maus <dmaus at ictsoc dot de>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;; Version: 6.35trans
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:
;; This file implements links to Wanderlust messages from within Org-mode.
;; Org-mode loads this module by default - if this is not what you want,
;; configure the variable `org-modules'.
;;; Code:
(require 'org)
(defgroup org-wl nil
"Options concerning the Wanderlust link."
:tag "Org Startup"
:group 'org-link)
(defcustom org-wl-link-to-refile-destination t
"Create a link to the refile destination if the message is marked as refile."
:group 'org-wl
:type 'boolean)
(defcustom org-wl-link-remove-filter nil
"Remove filter condition if message is filter folder."
:group 'org-wl
:type 'boolean)
(defcustom org-wl-shimbun-prefer-web-links nil
"If non-nil create web links for shimbun messages."
:group 'org-wl
:type 'boolean)
(defcustom org-wl-nntp-prefer-web-links nil
"If non-nil create web links for nntp messages.
When folder name contains string \"gmane\" link to gmane,
googlegroups otherwise."
:type 'boolean
:group 'org-wl)
(defcustom org-wl-namazu-default-index nil
"Default namazu search index."
:type 'directory
:group 'org-wl)
;; Declare external functions and variables
(declare-function elmo-folder-exists-p "ext:elmo" (folder) t)
(declare-function elmo-message-entity-field "ext:elmo-msgdb"
(entity field &optional type))
(declare-function elmo-message-field "ext:elmo"
(folder number field &optional type) t)
(declare-function elmo-msgdb-overview-get-entity "ext:elmo" (id msgdb) t)
;; Backward compatibility to old version of wl
(declare-function wl "ext:wl" () t)
(declare-function wl-summary-buffer-msgdb "ext:wl-folder" () t)
(declare-function wl-summary-jump-to-msg-by-message-id "ext:wl-summary"
(&optional id))
(declare-function wl-summary-line-from "ext:wl-summary" ())
(declare-function wl-summary-line-subject "ext:wl-summary" ())
(declare-function wl-summary-message-number "ext:wl-summary" ())
(declare-function wl-summary-redisplay "ext:wl-summary" (&optional arg))
(declare-function wl-summary-registered-temp-mark "ext:wl-action" (number))
(declare-function wl-folder-goto-folder-subr "ext:wl-folder"
(&optional folder sticky))
(defvar wl-init)
(defvar wl-summary-buffer-elmo-folder)
(defvar wl-summary-buffer-folder-name)
(defconst org-wl-folder-types
'(("%" . imap) ("-" . nntp) ("+" . mh) ("=" . spool)
("$" . archive) ("&" . pop) ("@" . shimbun) ("[" . search)
("*" . multi) ("/" . filter) ("|" . pipe) ("'" . internal))
"List of folder indicators. See Wanderlust manual, section 3.")
;; Install the link type
(org-add-link-type "wl" 'org-wl-open)
(add-hook 'org-store-link-functions 'org-wl-store-link)
;; Implementation
(defun org-wl-folder-type (folder)
"Return symbol that indicicates the type of FOLDER.
FOLDER is the wanderlust folder name. The first character of the
folder name determines the the folder type."
(let* ((indicator (substring folder 0 1))
(type (cdr (assoc indicator org-wl-folder-types))))
;; maybe access or file folder
(when (not type)
(setq type
(cond
((and (>= (length folder) 5)
(string= (substring folder 0 5) "file:"))
'file)
((and (>= (length folder) 7)
(string= (substring folder 0 7) "access:"))
'access)
(t
nil))))
type))
(defun org-wl-store-link ()
"Store a link to a WL folder or message."
(when (eq major-mode 'wl-summary-mode)
(let* ((msgnum (wl-summary-message-number))
(mark-info (wl-summary-registered-temp-mark msgnum))
(folder-name
(if (and org-wl-link-to-refile-destination
mark-info
(equal (nth 1 mark-info) "o")) ; marked as refile
(nth 2 mark-info)
wl-summary-buffer-folder-name))
(folder-type (org-wl-folder-type folder-name))
(message-id (elmo-message-field wl-summary-buffer-elmo-folder
msgnum 'message-id))
(wl-message-entity
(if (fboundp 'elmo-message-entity)
(elmo-message-entity
wl-summary-buffer-elmo-folder msgnum)
(elmo-msgdb-overview-get-entity
msgnum (wl-summary-buffer-msgdb))))
(from (let ((from-field (elmo-message-entity-field wl-message-entity
'from)))
(if (listp from-field)
(car from-field)
from-field)))
(to (let ((to-field (elmo-message-entity-field wl-message-entity
'to)))
(if (listp to-field)
(car to-field)
to-field)))
(xref (let ((xref-field (elmo-message-entity-field wl-message-entity
'xref)))
(if (listp xref-field)
(car xref-field)
xref-field)))
(subject (let (wl-thr-indent-string wl-parent-message-entity)
(wl-summary-line-subject)))
desc link)
;; remove text properties of subject string to avoid possible bug
;; when formatting the subject
;; (Emacs bug #5306, fixed)
(set-text-properties 0 (length subject) nil subject)
;; maybe remove filter condition
(when (and (eq folder-type 'filter) org-wl-link-remove-filter)
(while (eq (org-wl-folder-type folder-name) 'filter)
(setq folder-name
(replace-regexp-in-string "^/[^/]+/" "" folder-name))))
;; maybe create http link
(cond
((and (eq folder-type 'shimbun) org-wl-shimbun-prefer-web-links xref)
(org-store-link-props :type "http" :link xref :description subject
:from from :to to :message-id message-id
:subject subject))
((and (eq folder-type 'nntp) org-wl-nntp-prefer-web-links)
(setq link (format
(if (string-match "gmane\\." folder-name)
"http://mid.gmane.org/%s"
"http://groups.google.com/groups/search?as_umsgid=%s")
(org-fixup-message-id-for-http message-id)))
(org-store-link-props :type "http" :link link :description subject
:from from :to to :message-id message-id
:subject subject))
(t
(org-store-link-props :type "wl" :from from :to to
:subject subject :message-id message-id)
(setq message-id (org-remove-angle-brackets message-id))
(setq desc (org-email-link-description))
(setq link (org-make-link "wl:" folder-name "#" message-id))
(org-add-link-props :link link :description desc)))
(or link xref))))
(defun org-wl-open (path)
"Follow the WL message link specified by PATH.
When called with one prefix, open message in namazu search folder
with `org-wl-namazu-default-index' as search index. When called
with two prefixes or `org-wl-namazu-default-index' is nil, ask
for namazu index."
(require 'wl)
(unless wl-init (wl))
;; XXX: The imap-uw's MH folder names start with "%#".
(if (not (string-match "\\`\\(\\(?:%#\\)?[^#]+\\)\\(#\\(.*\\)\\)?" path))
(error "Error in Wanderlust link"))
(let ((folder (match-string 1 path))
(article (match-string 3 path)))
;; maybe open message in namazu search folder
(when current-prefix-arg
(setq folder (concat "[" article "]"
(if (and (equal current-prefix-arg '(4))
org-wl-namazu-default-index)
org-wl-namazu-default-index
(read-directory-name "Namazu index: ")))))
(if (not (elmo-folder-exists-p (org-no-warnings
(wl-folder-get-elmo-folder folder))))
(error "No such folder: %s" folder))
(let ((old-buf (current-buffer))
(old-point (point-marker)))
(wl-folder-goto-folder-subr folder)
(with-current-buffer old-buf
;; XXX: `wl-folder-goto-folder-subr' moves point to the
;; beginning of the current line. So, restore the point
;; in the old buffer.
(goto-char old-point))
(and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
article))
(wl-summary-redisplay)))))
(provide 'org-wl)
;; arch-tag: 29b75a0f-ef2e-430b-8abc-acff75bde54a
;;; org-wl.el ends here