1 ;;; wl-news.el --- Create notification from NEWS(.ja) for Wanderlust.
3 ;; Copyright (C) 2002 Yoichi NAKAYAMA <yoichi@eken.phys.nagoya-u.ac.jp>
4 ;; Copyright (C) 2002 Kenichi OKADA <okada@opaopa.org>
6 ;; Author: Yoichi NAKAYAMA <yoichi@eken.phys.nagoya-u.ac.jp>
7 ;; Kenichi OKADA <okada@opaopa.org>
8 ;; Keywords: mail, net news
10 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
12 ;; This program 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 2, or (at your option)
17 ;; This program 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.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
40 (defvar wl-news-version-file-name "previous-version")
41 (defvar wl-news-default-previous-version '(2 0 0))
44 (if (and (boundp 'current-language-environment)
45 (string-equal "Japanese"
46 (symbol-value 'current-language-environment)))
47 '("ja" "en") '("en" "ja"))
48 "The list of languages to show NEWS. (order sensitive)")
50 (defun wl-news-check ()
51 (let* ((updated (not (wl-news-already-current-p))))
55 (cdr (wl-news-previous-version-load))
57 (not (memq 'wl-news wl-hook)))
58 (add-hook 'wl-hook 'wl-news))
59 ;; update wl-news-version-file
60 (wl-news-previous-version-save
61 (product-version (product-find 'wl-version))
62 (cdr (wl-news-previous-version-load))))
68 ;;; -*- news-list-end -*-
70 (defun wl-news-previous-version-load ()
72 (let ((filename (expand-file-name
73 wl-news-version-file-name
74 elmo-msgdb-directory))
75 (tmp-buffer (get-buffer-create " *wl-news-version-tmp*"))
76 insert-file-contents-pre-hook
77 insert-file-contents-post-hook
79 (if (not (file-readable-p filename))
80 (cons wl-news-default-previous-version
81 wl-news-default-previous-version)
82 (set-buffer tmp-buffer)
83 (insert-file-contents filename)
86 (read (current-buffer))
88 (kill-buffer tmp-buffer)
91 (defun wl-news-previous-version-save (current-version previous-version)
93 (let ((filename (expand-file-name
94 wl-news-version-file-name
95 elmo-msgdb-directory))
96 (tmp-buffer (get-buffer-create " *wl-news-version-tmp*"))
97 print-length print-level)
98 (set-buffer tmp-buffer)
100 (prin1 (cons current-version previous-version) tmp-buffer)
101 (princ "\n" tmp-buffer)
102 (if (file-writable-p filename)
103 (write-region (point-min) (point-max)
104 filename nil 'no-msg)
105 (message "%s is not writable." filename))
106 (kill-buffer tmp-buffer))))
108 (defun wl-news-append-news (lang previous-version &optional no-mime-tag)
110 (let ((news-list (cdr (assoc lang wl-news-news-alist)))
114 (insert "--------------\n")
115 (mime-edit-insert-tag "text" "plain" "" ""))
117 (product-version-compare
118 (car (car news-list))
121 (insert (cdr (car news-list)) "\n\n")
122 (setq news-list (cdr news-list))))
125 (defun wl-news-check-news (version news-lang)
126 (let ((lang news-lang)
129 (setq news-list (cdr (assoc (car lang) wl-news-news-alist)))
131 (product-version-compare
132 (car (car news-list)) version))
134 (setq news-list (cdr news-list)))
135 (setq lang (cdr lang)))
138 (defun wl-news-already-current-p ()
139 (>= 0 (product-version-compare
140 (product-version (product-find 'wl-version))
141 (car (wl-news-previous-version-load)))))
143 (defun wl-news-send-news (version news-lang folder)
145 (let ((lang (if (listp wl-news-lang)
147 (list wl-news-lang)))
150 (save-window-excursion
152 (setq send-buffer (wl-draft-create-buffer)))
153 (wl-draft-create-contents
154 (list (cons 'From "WL Release 'Bot <wl@lists.airs.net>")
155 (cons 'To (wl-draft-eword-encode-address-list wl-from))
156 (cons 'Subject "Wanderlust NEWS")
157 (cons 'Date (wl-make-date-string))
158 (cons 'User-Agent wl-generate-mailer-string-function)))
159 (wl-draft-insert-mail-header-separator)
160 (wl-draft-prepare-edit)
161 (goto-char (point-max))
162 (insert "\nThis message is automatically generated by Wanderlust.\n\n")
165 (wl-news-append-news (car lang) version)
166 (setq lang (cdr lang)))
168 (let ((mime-header-encode-method-alist
169 '((eword-encode-unstructured-field-body))))
170 (mime-edit-translate-buffer))
171 (wl-draft-get-header-delimiter t)
173 (and (elmo-folder-writable-p
174 (wl-folder-get-elmo-folder folder))
175 (elmo-folder-append-buffer
176 (wl-folder-get-elmo-folder folder))))
177 (wl-draft-hide send-buffer)
178 (wl-draft-delete send-buffer))
183 (defvar wl-news-buf-name "NEWS")
184 (defvar wl-news-mode-map nil)
185 (defvar wl-news-winconf nil)
186 (defvar wl-news-buffer-oldest-version nil)
187 (make-variable-buffer-local 'wl-news-buffer-oldest-version)
189 (unless wl-news-mode-map
190 (setq wl-news-mode-map (make-sparse-keymap))
191 (define-key wl-news-mode-map "q" 'wl-news-exit)
192 (define-key wl-news-mode-map "Q" 'wl-news-force-exit)
193 (define-key wl-news-mode-map "\C-xk" 'wl-news-exit)
194 (define-key wl-news-mode-map "a" 'wl-news-show-all)
195 (define-key wl-news-mode-map "m" 'wl-news-append-to-folder)
196 (define-key wl-news-mode-map "\C-m" 'wl-news-next-line)
197 (define-key wl-news-mode-map " " 'wl-news-next-page))
199 (defun wl-news-mode ()
200 "Mode for Wanderlust NEWS(.ja)."
202 (kill-all-local-variables)
203 (use-local-map wl-news-mode-map)
204 (setq major-mode 'wl-news-mode)
205 (setq mode-name "NEWS")
206 (setq buffer-read-only t))
208 (defun wl-news (&optional arg)
210 (remove-hook 'wl-hook 'wl-news)
211 (let* ((previous-version (if arg wl-news-default-previous-version
212 (cdr (wl-news-previous-version-load))))
215 (if (or (get-buffer wl-news-buf-name)
216 (if (wl-news-check-news previous-version wl-news-lang)
218 (setq wl-news-winconf (current-window-configuration))
219 (set-buffer (get-buffer-create wl-news-buf-name))
221 (setq wl-news-buffer-oldest-version previous-version)
222 (buffer-disable-undo (current-buffer))
224 (let ((buffer-read-only nil))
225 (insert "--- Wanderlust NEWS --- press 'a' to show all NEWS\n")
226 (insert " press 'm' to mail this NEWS to your folder\n")
227 (insert " press 'q' to quit\n")
228 (insert " press 'Q' to force quit\n\n")
231 (car lang) previous-version t)
232 (setq lang (cdr lang))))
237 (switch-to-buffer wl-news-buf-name)
238 (delete-other-windows)
239 (goto-char (point-min))))))
241 (defun wl-news-next-line ()
245 (defun wl-news-next-page ()
249 (defun wl-news-show-all ()
251 (when (eq major-mode 'wl-news-mode)
252 (kill-buffer (current-buffer))
255 (defun wl-news-exit ()
257 (let* ((oldest-version (cdr (wl-news-previous-version-load)))
258 (current-version (product-version (product-find 'wl-version)))
259 (new-old-version current-version)
260 (buf (get-buffer wl-news-buf-name)))
262 (if (wl-news-check-news oldest-version wl-news-lang)
263 (if (y-or-n-p "Do you want to see this message again? ")
265 (message "Please M-x wl-news if you want to see it.")
266 (setq new-old-version oldest-version))))
267 (wl-news-previous-version-save
268 current-version new-old-version)
269 (kill-buffer (current-buffer))
271 (set-window-configuration wl-news-winconf))
274 (set-window-configuration wl-news-winconf)))))
276 (defun wl-news-append-to-folder ()
278 (let* ((current-version (product-version (product-find 'wl-version)))
279 (new-old-version current-version)
280 (folder wl-default-folder))
281 (if (or (and (elmo-folder-writable-p
282 (wl-folder-get-elmo-folder folder))
284 "Do you want to append this message to %s ? "
287 (wl-summary-read-folder wl-default-folder "to append ")))
288 (or (wl-news-send-news wl-news-buffer-oldest-version wl-news-lang folder)
289 (error "Cannot append NEWS mail to %s" folder)))))
291 (defun wl-news-force-exit ()
294 (when (setq buf (get-buffer wl-news-buf-name))
295 (wl-news-previous-version-save
296 (product-version (product-find 'wl-version))
297 (cdr (wl-news-previous-version-load)))
300 (set-window-configuration wl-news-winconf)))))
304 (product-provide (provide 'wl-news) (require 'wl-version))
306 ;;; wl-news.el ends here