lisp/org/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 Free Software Foundation, Inc.
   4
   5 ;; Author: Tokuya Kameshima <kames at fa2 dot so-net dot ne dot jp>
   6 ;; Keywords: outlines, hypermedia, calendar, wp
   7 ;; Homepage: http://orgmode.org
   8 ;; Version: 6.05a
   9 ;;
  10 ;; This file is part of GNU Emacs.
  11 ;;
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  25 ;;
  26 ;;; Commentary:
  27
  28 ;; This file implements links to Wanderlust messages from within Org-mode.
  29 ;; Org-mode loads this module by default - if this is not what you want,
  30 ;; configure the variable `org-modules'.
  31
  32 ;;; Code:
  33
  34 (require 'org)
  35
  36 (defgroup org-wl nil
  37  "Options concerning the Wanderlust link."
  38  :tag "Org Startup"
  39  :group 'org-link)
  40
  41 (defcustom org-wl-link-to-refile-destination t
  42  "Create a link to the refile destination if the message is marked as refile."
  43  :group 'org-wl
  44  :type 'boolean)
  45
  46 ;; Declare external functions and variables
  47 (declare-function elmo-folder-exists-p "ext:elmo" (folder) t)
  48 (declare-function elmo-message-entity-field "ext:elmo-msgdb"
  49                   (entity field &optional type))
  50 (declare-function elmo-message-field "ext:elmo"
  51                   (folder number field &optional type) t)
  52 (declare-function elmo-msgdb-overview-get-entity "ext:elmo" (id msgdb) t)
  53 ;; Backward compatibility to old version of wl
  54 (declare-function wl "ext:wl" () t)
  55 (declare-function wl-summary-buffer-msgdb "ext:wl-folder" () t)
  56 (declare-function wl-folder-get-elmo-folder "ext:wl-folder"
  57                   (entity &optional no-cache))
  58 (declare-function wl-summary-goto-folder-subr "ext:wl-summary"
  59                   (&optional name scan-type other-window sticky interactive
  60                              scoring force-exit))
  61 (declare-function wl-summary-jump-to-msg-by-message-id "ext:wl-summary"
  62                   (&optional id))
  63 (declare-function wl-summary-line-from "ext:wl-summary" ())
  64 (declare-function wl-summary-line-subject "ext:wl-summary" ())
  65 (declare-function wl-summary-message-number "ext:wl-summary" ())
  66 (declare-function wl-summary-redisplay "ext:wl-summary" (&optional arg))
  67 (declare-function wl-summary-registered-temp-mark "ext:wl-action" (number))
  68 (declare-function wl-folder-goto-folder-subr "ext:wl-folder"
  69                   (&optional folder sticky))
  70 (declare-function wl-thread-open-all "ext:wl-thread" ())
  71 (defvar wl-init)
  72 (defvar wl-summary-buffer-elmo-folder)
  73 (defvar wl-summary-buffer-folder-name)
  74
  75 ;; Install the link type
  76 (org-add-link-type "wl" 'org-wl-open)
  77 (add-hook 'org-store-link-functions 'org-wl-store-link)
  78
  79 ;; Implementation
  80 (defun org-wl-store-link ()
  81  "Store a link to a WL folder or message."
  82  (when (eq major-mode 'wl-summary-mode)
  83    (let* ((msgnum (wl-summary-message-number))
  84            (mark-info (wl-summary-registered-temp-mark msgnum))
  85            (folder-name
  86             (if (and org-wl-link-to-refile-destination
  87                      mark-info
  88                      (equal (nth 1 mark-info) "o")) ; marked as refile
  89                 (nth 2 mark-info)
  90               wl-summary-buffer-folder-name))
  91            (message-id (elmo-message-field wl-summary-buffer-elmo-folder
  92                                            msgnum 'message-id))
  93            (wl-message-entity
  94             (if (fboundp 'elmo-message-entity)
  95                 (elmo-message-entity
  96                  wl-summary-buffer-elmo-folder msgnum)
  97               (elmo-msgdb-overview-get-entity
  98                msgnum (wl-summary-buffer-msgdb))))
  99            (from (wl-summary-line-from))
 100            (to (let ((to-field (elmo-message-entity-field wl-message-entity
 101                                                           'to)))
 102                  (if (listp to-field)
 103                      (car to-field)
 104                    to-field)))
 105            (subject (let (wl-thr-indent-string wl-parent-message-entity)
 106                       (wl-summary-line-subject)))
 107            desc link)
 108      (org-store-link-props :type "wl" :from from :to to
 109                             :subject subject :message-id message-id)
 110      (setq message-id (org-remove-angle-brackets message-id))
 111      (setq desc (org-email-link-description))
 112      (setq link (org-make-link "wl:" folder-name
 113                                 "#" message-id))
 114      (org-add-link-props :link link :description desc)
 115      link)))
 116
 117 (defun org-wl-open (path)
 118  "Follow the WL message link specified by PATH."
 119  (require 'wl)
 120  (unless wl-init (wl))
 121  ;; XXX: The imap-uw's MH folder names start with "%#".
 122  (if (not (string-match "\\`\\(\\(?:%#\\)?[^#]+\\)\\(#\\(.*\\)\\)?" path))
 123      (error "Error in Wanderlust link"))
 124  (let ((folder (match-string 1 path))
 125         (article (match-string 3 path)))
 126    (if (not (elmo-folder-exists-p (wl-folder-get-elmo-folder folder)))
 127         (error "No such folder: %s" folder))
 128    (let ((old-buf (current-buffer))
 129           (old-point (point-marker)))
 130      (wl-folder-goto-folder-subr folder)
 131      (save-excursion
 132         ;; XXX: `wl-folder-goto-folder-subr' moves point to the
 133         ;; beginning of the current line.  So, restore the point
 134         ;; in the old buffer.
 135         (set-buffer old-buf)
 136         (goto-char old-point))
 137      (wl-thread-open-all)
 138      (and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
 139                                                   article))
 140            (wl-summary-redisplay)))))
 141
 142 (provide 'org-wl)
 143
 144 ;; arch-tag: 29b75a0f-ef2e-430b-8abc-acff75bde54a
 145
 146 ;;; org-wl.el ends here