130 lines
4.6 KiB
EmacsLisp
130 lines
4.6 KiB
EmacsLisp
;;; org-gnus.el --- Support for links to Gnus groups and messages from within Org-mode
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;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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;; Author: Carsten Dominik <carsten at orgmode dot org>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: http://orgmode.org
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;; Version: 6.00pre-1
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;;
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;; This file is part of GNU Emacs.
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;;
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;; This file implements links to Gnus groups and messages from within Org-mode.
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;; Org-mode loads this module by default - if this is not what you want,
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;; configure the variable `org-modules'.
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;;; Code:
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(require 'org)
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(eval-when-compile
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(require 'gnus-sum))
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;; Customization variables
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(defcustom org-usenet-links-prefer-google nil
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"Non-nil means, `org-store-link' will create web links to Google groups.
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When nil, Gnus will be used for such links.
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Using a prefix arg to the command \\[org-store-link] (`org-store-link')
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negates this setting for the duration of the command."
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:group 'org-link-store
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:type 'boolean)
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;; Declare external functions and variables
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(declare-function gnus-article-show-summary "gnus-art" ())
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(declare-function gnus-summary-last-subject "gnus-sum" ())
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(defvar gnus-other-frame-object)
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(defvar gnus-group-name)
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(defvar gnus-article-current)
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;; Install the link type
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(org-add-link-type "gnus" 'org-gnus-open)
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(add-hook 'org-store-link-functions 'org-gnus-store-link)
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;; Implementation
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(defun org-gnus-store-link ()
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"Store a link to a Gnus folder or message."
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(cond
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((eq major-mode 'gnus-group-mode)
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(let ((group (cond ((fboundp 'gnus-group-group-name) ; depending on Gnus
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(gnus-group-group-name)) ; version
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((fboundp 'gnus-group-name)
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(gnus-group-name))
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(t "???")))
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desc link)
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(unless group (error "Not on a group"))
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(org-store-link-props :type "gnus" :group group)
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(setq desc (concat
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(if (org-xor current-prefix-arg
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org-usenet-links-prefer-google)
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"http://groups.google.com/groups?group="
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"gnus:")
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group)
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link (org-make-link desc))
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(org-add-link-props :link link :description desc)
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link))
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((memq major-mode '(gnus-summary-mode gnus-article-mode))
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(and (eq major-mode 'gnus-article-mode) (gnus-article-show-summary))
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(let* ((group gnus-newsgroup-name)
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(article (gnus-summary-article-number))
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(header (gnus-summary-article-header article))
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(from (mail-header-from header))
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(message-id (mail-header-id header))
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(date (mail-header-date header))
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(subject (gnus-summary-subject-string))
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desc link)
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(org-store-link-props :type "gnus" :from from :subject subject
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:message-id message-id :group group)
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(setq desc (org-email-link-description))
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(if (org-xor current-prefix-arg org-usenet-links-prefer-google)
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(setq link
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(concat
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desc "\n "
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(format "http://groups.google.com/groups?as_umsgid=%s"
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(org-fixup-message-id-for-http message-id))))
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(setq link (org-make-link "gnus:" group
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"#" (number-to-string article))))
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(org-add-link-props :link link :description desc)
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link))))
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(defun org-gnus-open (path)
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"Follow the Gnus message or folder link specified by PATH."
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(let (group article)
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(if (not (string-match "\\`\\([^#]+\\)\\(#\\(.*\\)\\)?" path))
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(error "Error in Gnus link"))
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(setq group (match-string 1 path)
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article (match-string 3 path))
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(org-gnus-follow-link group article)))
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(defun org-gnus-follow-link (&optional group article)
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"Follow a Gnus link to GROUP and ARTICLE."
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(require 'gnus)
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(funcall (cdr (assq 'gnus org-link-frame-setup)))
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(if gnus-other-frame-object (select-frame gnus-other-frame-object))
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(cond ((and group article)
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(gnus-group-read-group 1 nil group)
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(gnus-summary-goto-article (string-to-number article) nil t))
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(group (gnus-group-jump-to-group group))))
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(provide 'org-gnus)
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;;; org-gnus.el ends here
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