org-mode/lisp/org-wl.el

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;;; org-wl.el --- Support for links to Wanderlust messages from within Org-mode
;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Carsten Dominik <carsten at orgmode dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;; Version: 1.0
;;
;; 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, 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; 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)
;; 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" (&rest unknown) t)
;; Backward compatibility to old version of wl
(declare-function wl "ext:wl" () t)
(declare-function wl-summary-buffer-msgdb "ext:wl-folder" (&rest unknown) t)
(declare-function wl-folder-get-elmo-folder "ext:wl-folder"
(entity &optional no-cache))
(declare-function wl-summary-goto-folder-subr "ext:wl-summary"
(&optional name scan-type other-window sticky interactive
scoring force-exit))
(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))
(declare-function wl-thread-open-all "ext:wl-thread" ())
(defvar wl-init)
(defvar wl-summary-buffer-elmo-folder)
(defvar wl-summary-buffer-folder-name)
;; 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-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))
(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 (wl-summary-line-from))
(to (let ((to-field (elmo-message-entity-field wl-message-entity
'to)))
(if (listp to-field)
(car to-field)
to-field)))
(subject (let (wl-thr-indent-string wl-parent-message-entity)
(wl-summary-line-subject)))
desc link)
(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)
link)))
(defun org-wl-open (path)
"Follow the WL message link specified by PATH."
(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)))
(if (not (elmo-folder-exists-p (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)
(save-excursion
;; XXX: `wl-folder-goto-folder-subr' moves point to the
;; beginning of the current line. So, restore the point
;; in the old buffer.
(set-buffer old-buf)
(goto-char old-point))
(wl-thread-open-all)
(and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
article))
(wl-summary-redisplay)))))
(provide 'org-wl)
;;; org-wl.el ends here