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org-mode/lisp/org-rmail.el
Paul Eggert ecf3a4af2c Backport remaining changes from commit 7e09ef0
Add changes from Emacs repo that should have been backported with
bb77dd2.

Update copyright year to 2015
7e09ef09a479731d01b1ca46e94ddadd73ac98e3
Paul Eggert
Thu Jan 1 14:26:41 2015 -0800
2015-08-10 02:17:19 -04:00

126 lines
4.5 KiB
EmacsLisp

;;; org-rmail.el --- Support for links to Rmail messages from within Org-mode
;; Copyright (C) 2004-2015 Free Software Foundation, Inc.
;; Author: Carsten Dominik <carsten at orgmode dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;;
;; 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 Rmail 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)
;; Declare external functions and variables
(declare-function rmail-show-message "rmail" (&optional n no-summary))
(declare-function rmail-what-message "rmail" (&optional pos))
(declare-function rmail-toggle-header "rmail" (&optional arg))
(declare-function rmail "rmail" (&optional file-name-arg))
(declare-function rmail-widen "rmail" ())
(defvar rmail-current-message) ; From rmail.el
(defvar rmail-header-style) ; From rmail.el
(defvar rmail-file-name) ; From rmail.el
;; Install the link type
(org-add-link-type "rmail" 'org-rmail-open)
(add-hook 'org-store-link-functions 'org-rmail-store-link)
;; Implementation
(defun org-rmail-store-link ()
"Store a link to an Rmail folder or message."
(when (or (eq major-mode 'rmail-mode)
(eq major-mode 'rmail-summary-mode))
(save-window-excursion
(save-restriction
(when (eq major-mode 'rmail-summary-mode)
(rmail-show-message rmail-current-message))
(when (fboundp 'rmail-narrow-to-non-pruned-header)
(rmail-narrow-to-non-pruned-header))
(when (eq rmail-header-style 'normal)
(rmail-toggle-header -1))
(let* ((folder buffer-file-name)
(message-id (mail-fetch-field "message-id"))
(from (mail-fetch-field "from"))
(to (mail-fetch-field "to"))
(subject (mail-fetch-field "subject"))
(date (mail-fetch-field "date"))
(date-ts (and date (format-time-string
(org-time-stamp-format t)
(date-to-time date))))
(date-ts-ia (and date (format-time-string
(org-time-stamp-format t t)
(date-to-time date))))
desc link)
(org-store-link-props
:type "rmail" :from from :to to
:subject subject :message-id message-id)
(when date
(org-add-link-props :date date :date-timestamp date-ts
:date-timestamp-inactive date-ts-ia))
(setq message-id (org-remove-angle-brackets message-id))
(setq desc (org-email-link-description))
(setq link (concat "rmail:" folder "#" message-id))
(org-add-link-props :link link :description desc)
(rmail-show-message rmail-current-message)
link)))))
(defun org-rmail-open (path)
"Follow an Rmail message link to the specified PATH."
(let (folder article)
(if (not (string-match "\\`\\([^#]+\\)\\(#\\(.*\\)\\)?" path))
(error "Error in Rmail link"))
(setq folder (match-string 1 path)
article (match-string 3 path))
(org-rmail-follow-link folder article)))
(defun org-rmail-follow-link (folder article)
"Follow an Rmail link to FOLDER and ARTICLE."
(require 'rmail)
(cond ((null article) (setq article ""))
((stringp article)
(setq article (org-add-angle-brackets article)))
(t (user-error "Wrong RMAIL link format")))
(let (message-number)
(save-excursion
(save-window-excursion
(rmail (if (string= folder "RMAIL") rmail-file-name folder))
(setq message-number
(save-restriction
(rmail-widen)
(goto-char (point-max))
(if (re-search-backward
(concat "^Message-ID:\\s-+" (regexp-quote article))
nil t)
(rmail-what-message))))))
(if message-number
(progn
(rmail (if (string= folder "RMAIL") rmail-file-name folder))
(rmail-show-message message-number)
message-number)
(error "Message not found"))))
(provide 'org-rmail)
;;; org-rmail.el ends here