lisp/org-wl.el

   1 ;;; org-wl.el --- Support for links to Wanderlust messages from within Org-mode
   2
   3 ;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
   4 ;;   Free Software Foundation, Inc.
   5
   6 ;; Author: Tokuya Kameshima <kames at fa2 dot so-net dot ne dot jp>
   7 ;; Keywords: outlines, hypermedia, calendar, wp
   8 ;; Homepage: http://orgmode.org
   9 ;; Version: 6.34trans
  10 ;;
  11 ;; This file is part of GNU Emacs.
  12 ;;
  13 ;; GNU Emacs is free software: you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation, either version 3 of the License, or
  16 ;; (at your option) any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  26 ;;
  27 ;;; Commentary:
  28
  29 ;; This file implements links to Wanderlust messages from within Org-mode.
  30 ;; Org-mode loads this module by default - if this is not what you want,
  31 ;; configure the variable `org-modules'.
  32
  33 ;;; Code:
  34
  35 (require 'org)
  36
  37 (defgroup org-wl nil
  38  "Options concerning the Wanderlust link."
  39  :tag "Org Startup"
  40  :group 'org-link)
  41
  42 (defcustom org-wl-link-to-refile-destination t
  43  "Create a link to the refile destination if the message is marked as refile."
  44  :group 'org-wl
  45  :type 'boolean)
  46
  47 ;; Declare external functions and variables
  48 (declare-function elmo-folder-exists-p "ext:elmo" (folder) t)
  49 (declare-function elmo-message-entity-field "ext:elmo-msgdb"
  50                   (entity field &optional type))
  51 (declare-function elmo-message-field "ext:elmo"
  52                   (folder number field &optional type) t)
  53 (declare-function elmo-msgdb-overview-get-entity "ext:elmo" (id msgdb) t)
  54 ;; Backward compatibility to old version of wl
  55 (declare-function wl "ext:wl" () t)
  56 (declare-function wl-summary-buffer-msgdb "ext:wl-folder" () t)
  57 (declare-function wl-summary-jump-to-msg-by-message-id "ext:wl-summary"
  58                   (&optional id))
  59 (declare-function wl-summary-line-from "ext:wl-summary" ())
  60 (declare-function wl-summary-line-subject "ext:wl-summary" ())
  61 (declare-function wl-summary-message-number "ext:wl-summary" ())
  62 (declare-function wl-summary-redisplay "ext:wl-summary" (&optional arg))
  63 (declare-function wl-summary-registered-temp-mark "ext:wl-action" (number))
  64 (declare-function wl-folder-goto-folder-subr "ext:wl-folder"
  65                   (&optional folder sticky))
  66 (defvar wl-init)
  67 (defvar wl-summary-buffer-elmo-folder)
  68 (defvar wl-summary-buffer-folder-name)
  69
  70 ;; Install the link type
  71 (org-add-link-type "wl" 'org-wl-open)
  72 (add-hook 'org-store-link-functions 'org-wl-store-link)
  73
  74 ;; Implementation
  75 (defun org-wl-store-link ()
  76  "Store a link to a WL folder or message."
  77  (when (eq major-mode 'wl-summary-mode)
  78    (let* ((msgnum (wl-summary-message-number))
  79            (mark-info (wl-summary-registered-temp-mark msgnum))
  80            (folder-name
  81             (if (and org-wl-link-to-refile-destination
  82                      mark-info
  83                      (equal (nth 1 mark-info) "o")) ; marked as refile
  84                 (nth 2 mark-info)
  85               wl-summary-buffer-folder-name))
  86            (message-id (elmo-message-field wl-summary-buffer-elmo-folder
  87                                            msgnum 'message-id))
  88            (wl-message-entity
  89             (if (fboundp 'elmo-message-entity)
  90                 (elmo-message-entity
  91                  wl-summary-buffer-elmo-folder msgnum)
  92               (elmo-msgdb-overview-get-entity
  93                msgnum (wl-summary-buffer-msgdb))))
  94            (from (let ((from-field (elmo-message-entity-field wl-message-entity
  95                                                               'from)))
  96                    (if (listp from-field)
  97                        (car from-field)
  98                      from-field)))
  99            (to (let ((to-field (elmo-message-entity-field wl-message-entity
 100                                                           'to)))
 101                  (if (listp to-field)
 102                      (car to-field)
 103                    to-field)))
 104            (subject (let (wl-thr-indent-string wl-parent-message-entity)
 105                       (wl-summary-line-subject)))
 106            desc link)
 107      ;; remove text properties of subject string to avoid possible bug
 108      ;; when formatting the subject
 109      (set-text-properties 0 (length subject) nil subject)
 110
 111      (org-store-link-props :type "wl" :from from :to to
 112                             :subject subject :message-id message-id)
 113      (setq message-id (org-remove-angle-brackets message-id))
 114      (setq desc (org-email-link-description))
 115      (setq link (org-make-link "wl:" folder-name
 116                                 "#" message-id))
 117      (org-add-link-props :link link :description desc)
 118      link)))
 119
 120 (defun org-wl-open (path)
 121  "Follow the WL message link specified by PATH."
 122  (require 'wl)
 123  (unless wl-init (wl))
 124  ;; XXX: The imap-uw's MH folder names start with "%#".
 125  (if (not (string-match "\\`\\(\\(?:%#\\)?[^#]+\\)\\(#\\(.*\\)\\)?" path))
 126      (error "Error in Wanderlust link"))
 127  (let ((folder (match-string 1 path))
 128         (article (match-string 3 path)))
 129    (if (not (elmo-folder-exists-p (org-no-warnings
 130                                    (wl-folder-get-elmo-folder folder))))
 131         (error "No such folder: %s" folder))
 132    (let ((old-buf (current-buffer))
 133           (old-point (point-marker)))
 134      (wl-folder-goto-folder-subr folder)
 135      (save-excursion
 136         ;; XXX: `wl-folder-goto-folder-subr' moves point to the
 137         ;; beginning of the current line.  So, restore the point
 138         ;; in the old buffer.
 139         (set-buffer old-buf)
 140         (goto-char old-point))
 141      (and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
 142                                                   article))
 143            (wl-summary-redisplay)))))
 144
 145 (provide 'org-wl)
 146
 147 ;; arch-tag: 29b75a0f-ef2e-430b-8abc-acff75bde54a
 148
 149 ;;; org-wl.el ends here