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 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: 6.13a
   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 (defvar wl-init)
  71 (defvar wl-summary-buffer-elmo-folder)
  72 (defvar wl-summary-buffer-folder-name)
  73
  74 ;; Install the link type
  75 (org-add-link-type "wl" 'org-wl-open)
  76 (add-hook 'org-store-link-functions 'org-wl-store-link)
  77
  78 ;; Implementation
  79 (defun org-wl-store-link ()
  80  "Store a link to a WL folder or message."
  81  (when (eq major-mode 'wl-summary-mode)
  82    (let* ((msgnum (wl-summary-message-number))
  83            (mark-info (wl-summary-registered-temp-mark msgnum))
  84            (folder-name
  85             (if (and org-wl-link-to-refile-destination
  86                      mark-info
  87                      (equal (nth 1 mark-info) "o")) ; marked as refile
  88                 (nth 2 mark-info)
  89               wl-summary-buffer-folder-name))
  90            (message-id (elmo-message-field wl-summary-buffer-elmo-folder
  91                                            msgnum 'message-id))
  92            (wl-message-entity
  93             (if (fboundp 'elmo-message-entity)
  94                 (elmo-message-entity
  95                  wl-summary-buffer-elmo-folder msgnum)
  96               (elmo-msgdb-overview-get-entity
  97                msgnum (wl-summary-buffer-msgdb))))
  98            (from (wl-summary-line-from))
  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      (org-store-link-props :type "wl" :from from :to to
 108                             :subject subject :message-id message-id)
 109      (setq message-id (org-remove-angle-brackets message-id))
 110      (setq desc (org-email-link-description))
 111      (setq link (org-make-link "wl:" folder-name
 112                                 "#" message-id))
 113      (org-add-link-props :link link :description desc)
 114      link)))
 115
 116 (defun org-wl-open (path)
 117  "Follow the WL message link specified by PATH."
 118  (require 'wl)
 119  (unless wl-init (wl))
 120  ;; XXX: The imap-uw's MH folder names start with "%#".
 121  (if (not (string-match "\\`\\(\\(?:%#\\)?[^#]+\\)\\(#\\(.*\\)\\)?" path))
 122      (error "Error in Wanderlust link"))
 123  (let ((folder (match-string 1 path))
 124         (article (match-string 3 path)))
 125    (if (not (elmo-folder-exists-p (org-no-warnings
 126                                    (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      (and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
 138                                                   article))
 139            (wl-summary-redisplay)))))
 140
 141 (provide 'org-wl)
 142
 143 ;; arch-tag: 29b75a0f-ef2e-430b-8abc-acff75bde54a
 144
 145 ;;; org-wl.el ends here