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[bpt/emacs.git] / lisp / gnus / gnus-draft.el
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df80b09f 1;;; gnus-draft.el --- draft message support for Gnus
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2
3;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
e3fe4da0 4;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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5
6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7;; Keywords: news
8
9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
5a9dffec 13;; the Free Software Foundation; either version 3, or (at your option)
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14;; any later version.
15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
22;; along with GNU Emacs; see the file COPYING. If not, write to the
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23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24;; Boston, MA 02110-1301, USA.
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25
26;;; Commentary:
27
28;;; Code:
29
30(require 'gnus)
31(require 'gnus-sum)
32(require 'message)
33(require 'gnus-msg)
34(require 'nndraft)
35(require 'gnus-agent)
36(eval-when-compile (require 'cl))
37
38;;; Draft minor mode
39
40(defvar gnus-draft-mode nil
41 "Minor mode for providing a draft summary buffers.")
42
43(defvar gnus-draft-mode-map nil)
44
45(unless gnus-draft-mode-map
46 (setq gnus-draft-mode-map (make-sparse-keymap))
47
48 (gnus-define-keys gnus-draft-mode-map
49 "Dt" gnus-draft-toggle-sending
23f87bed 50 "e" gnus-draft-edit-message ;; Use `B w' for `gnus-summary-edit-article'
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51 "De" gnus-draft-edit-message
52 "Ds" gnus-draft-send-message
53 "DS" gnus-draft-send-all-messages))
54
55(defun gnus-draft-make-menu-bar ()
56 (unless (boundp 'gnus-draft-menu)
57 (easy-menu-define
58 gnus-draft-menu gnus-draft-mode-map ""
59 '("Drafts"
60 ["Toggle whether to send" gnus-draft-toggle-sending t]
61 ["Edit" gnus-draft-edit-message t]
62 ["Send selected message(s)" gnus-draft-send-message t]
63 ["Send all messages" gnus-draft-send-all-messages t]
64 ["Delete draft" gnus-summary-delete-article t]))))
65
66(defun gnus-draft-mode (&optional arg)
67 "Minor mode for providing a draft summary buffers.
68
69\\{gnus-draft-mode-map}"
70 (interactive "P")
71 (when (eq major-mode 'gnus-summary-mode)
72 (when (set (make-local-variable 'gnus-draft-mode)
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73 (if (null arg) (not gnus-draft-mode)
74 (> (prefix-numeric-value arg) 0)))
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75 ;; Set up the menu.
76 (when (gnus-visual-p 'draft-menu 'menu)
77 (gnus-draft-make-menu-bar))
78 (gnus-add-minor-mode 'gnus-draft-mode " Draft" gnus-draft-mode-map)
79 (gnus-run-hooks 'gnus-draft-mode-hook))))
80
81;;; Commands
82
83(defun gnus-draft-toggle-sending (article)
84 "Toggle whether to send an article or not."
85 (interactive (list (gnus-summary-article-number)))
86 (if (gnus-draft-article-sendable-p article)
87 (progn
88 (push article gnus-newsgroup-unsendable)
89 (gnus-summary-mark-article article gnus-unsendable-mark))
90 (setq gnus-newsgroup-unsendable
91 (delq article gnus-newsgroup-unsendable))
92 (gnus-summary-mark-article article gnus-unread-mark))
93 (gnus-summary-position-point))
94
95(defun gnus-draft-edit-message ()
96 "Enter a mail/post buffer to edit and send the draft."
97 (interactive)
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98 (let ((article (gnus-summary-article-number))
99 (group gnus-newsgroup-name))
cf5a5c38 100 (gnus-draft-check-draft-articles (list article))
df80b09f 101 (gnus-summary-mark-as-read article gnus-canceled-mark)
23f87bed 102 (gnus-draft-setup article group t)
df80b09f 103 (set-buffer-modified-p t)
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104 (save-excursion
105 (save-restriction
106 (message-narrow-to-headers)
107 (message-remove-header "date")))
df80b09f 108 (save-buffer)
16409b0b 109 (let ((gnus-verbose-backends nil))
23f87bed 110 (gnus-request-expire-articles (list article) group t))
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111 (push
112 `((lambda ()
113 (when (gnus-buffer-exists-p ,gnus-summary-buffer)
114 (save-excursion
115 (set-buffer ,gnus-summary-buffer)
116 (gnus-cache-possibly-remove-article ,article nil nil nil t)))))
117 message-send-actions)))
118
119(defun gnus-draft-send-message (&optional n)
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120 "Send the current draft(s).
121Obeys the standard process/prefix convention."
df80b09f 122 (interactive "P")
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123 (let* ((articles (gnus-summary-work-articles n))
124 (total (length articles))
125 article)
cf5a5c38 126 (gnus-draft-check-draft-articles articles)
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127 (while (setq article (pop articles))
128 (gnus-summary-remove-process-mark article)
129 (unless (memq article gnus-newsgroup-unsendable)
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130 (let ((message-sending-message
131 (format "Sending message %d of %d..."
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132 (- total (length articles)) total)))
133 (gnus-draft-send article gnus-newsgroup-name t))
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134 (gnus-summary-mark-article article gnus-canceled-mark)))))
135
16409b0b 136(defun gnus-draft-send (article &optional group interactive)
df80b09f 137 "Send message ARTICLE."
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138 (let* ((is-queue (or (not group)
139 (equal group "nndraft:queue")))
140 (message-syntax-checks (if interactive message-syntax-checks
141 'dont-check-for-anything-just-trust-me))
142 (message-hidden-headers nil)
143 (message-inhibit-body-encoding (or is-queue
144 message-inhibit-body-encoding))
145 (message-send-hook (and (not is-queue)
146 message-send-hook))
147 (message-setup-hook (and (not is-queue)
148 message-setup-hook))
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149 (message-signature (and (not is-queue)
150 message-signature))
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151 (gnus-agent-queue-mail (and (not is-queue)
152 gnus-agent-queue-mail))
153 (rfc2047-encode-encoded-words nil)
154 type method move-to)
16409b0b 155 (gnus-draft-setup article (or group "nndraft:queue"))
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156 ;; We read the meta-information that says how and where
157 ;; this message is to be sent.
158 (save-restriction
cf5a5c38 159 (message-narrow-to-headers)
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160 (when (re-search-forward
161 (concat "^" (regexp-quote gnus-agent-target-move-group-header)
162 ":") nil t)
163 (skip-syntax-forward "-")
164 (setq move-to (buffer-substring (point) (gnus-point-at-eol)))
165 (message-remove-header gnus-agent-target-move-group-header))
166 (goto-char (point-min))
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167 (when (re-search-forward
168 (concat "^" (regexp-quote gnus-agent-meta-information-header) ":")
169 nil t)
170 (setq type (ignore-errors (read (current-buffer)))
171 method (ignore-errors (read (current-buffer))))
172 (message-remove-header gnus-agent-meta-information-header)))
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173 ;; Let Agent restore any GCC lines and have message.el perform them.
174 (gnus-agent-restore-gcc)
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175 ;; Then we send it. If we have no meta-information, we just send
176 ;; it and let Message figure out how.
177 (when (and (or (null method)
178 (gnus-server-opened method)
179 (gnus-open-server method))
180 (if type
181 (let ((message-this-is-news (eq type 'news))
182 (message-this-is-mail (eq type 'mail))
183 (gnus-post-method method)
184 (message-post-method method))
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185 (if move-to
186 (gnus-inews-do-gcc move-to)
187 (message-send-and-exit)))
188 (if move-to
189 (gnus-inews-do-gcc move-to)
190 (message-send-and-exit))))
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191 (let ((gnus-verbose-backends nil))
192 (gnus-request-expire-articles
193 (list article) (or group "nndraft:queue") t)))))
194
195(defun gnus-draft-send-all-messages ()
196 "Send all the sendable drafts."
197 (interactive)
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198 (when (or
199 gnus-expert-user
200 (gnus-y-or-n-p
201 "Send all drafts? "))
202 (gnus-uu-mark-buffer)
203 (gnus-draft-send-message)))
df80b09f 204
23f87bed 205(defun gnus-group-send-queue ()
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206 "Send all sendable articles from the queue group."
207 (interactive)
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208 (when (or gnus-plugged
209 (not gnus-agent-prompt-send-queue)
210 (gnus-y-or-n-p "Gnus is unplugged; really send queue? "))
211 (gnus-activate-group "nndraft:queue")
212 (save-excursion
213 (let* ((articles (nndraft-articles))
214 (unsendable (gnus-uncompress-range
215 (cdr (assq 'unsend
216 (gnus-info-marks
217 (gnus-get-info "nndraft:queue"))))))
218 (gnus-posting-styles nil)
219 (total (length articles))
220 article)
221 (while (setq article (pop articles))
222 (unless (memq article unsendable)
223 (let ((message-sending-message
224 (format "Sending message %d of %d..."
225 (- total (length articles)) total)))
226 (gnus-draft-send article))))))))
df80b09f 227
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228;;;###autoload
229(defun gnus-draft-reminder ()
230 "Reminder user if there are unsent drafts."
231 (interactive)
232 (if (gnus-alive-p)
233 (let (active)
234 (catch 'continue
235 (dolist (group '("nndraft:drafts" "nndraft:queue"))
236 (setq active (gnus-activate-group group))
237 (if (and active (>= (cdr active) (car active)))
238 (if (y-or-n-p "There are unsent drafts. Confirm to exit? ")
239 (throw 'continue t)
240 (error "Stop!"))))))))
241
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242;;; Utility functions
243
244;;;!!!If this is byte-compiled, it fails miserably.
245;;;!!!This is because `gnus-setup-message' uses uninterned symbols.
246;;;!!!This has been fixed in recent versions of Emacs and XEmacs,
247;;;!!!but for the time being, we'll just run this tiny function uncompiled.
248
249(progn
16409b0b 250 (defun gnus-draft-setup (narticle group &optional restore)
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251 (let (ga)
252 (gnus-setup-message 'forward
253 (let ((article narticle))
254 (message-mail)
255 (erase-buffer)
256 (if (not (gnus-request-restore-buffer article group))
257 (error "Couldn't restore the article")
258 (when (and restore
259 (equal group "nndraft:queue"))
16409b0b 260 (mime-to-mml))
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261 ;; Insert the separator.
262 (goto-char (point-min))
263 (search-forward "\n\n")
264 (forward-char -1)
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265 (save-restriction
266 (narrow-to-region (point-min) (point))
267 (setq ga
268 (message-fetch-field gnus-draft-meta-information-header)))
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269 (insert mail-header-separator)
270 (forward-line 1)
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271 (message-set-auto-save-file-name))))
272 (gnus-backlog-remove-article group narticle)
273 (when (and ga
274 (ignore-errors (setq ga (car (read-from-string ga)))))
275 (setq gnus-newsgroup-name
276 (if (equal (car ga) "") nil (car ga)))
277 (gnus-configure-posting-styles)
278 (setq gnus-message-group-art (cons gnus-newsgroup-name (cadr ga)))
279 (setq message-post-method
280 `(lambda (arg)
281 (gnus-post-method arg ,(car ga))))
282 (unless (equal (cadr ga) "")
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283 (dolist (article (cdr ga))
284 (message-add-action
285 `(progn
286 (gnus-add-mark ,(car ga) 'replied ,article)
287 (gnus-request-set-mark ,(car ga) (list (list (list ,article)
288 'add '(reply)))))
289 'send)))))))
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290
291(defun gnus-draft-article-sendable-p (article)
292 "Say whether ARTICLE is sendable."
293 (not (memq article gnus-newsgroup-unsendable)))
294
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295(defun gnus-draft-check-draft-articles (articles)
296 "Check whether the draft articles ARTICLES are under edit."
297 (when (equal gnus-newsgroup-name "nndraft:drafts")
298 (let ((buffers (buffer-list))
299 file buffs buff)
300 (save-current-buffer
301 (while (and articles
302 (not buff))
303 (setq file (nndraft-article-filename (pop articles))
304 buffs buffers)
305 (while buffs
306 (set-buffer (setq buff (pop buffs)))
307 (if (and buffer-file-name
308 (string-equal (file-truename buffer-file-name)
309 (file-truename file))
310 (buffer-modified-p))
311 (setq buffs nil)
312 (setq buff nil)))))
313 (when buff
314 (let* ((window (get-buffer-window buff t))
315 (frame (and window (window-frame window))))
316 (if frame
317 (gnus-select-frame-set-input-focus frame)
318 (pop-to-buffer buff t)))
319 (error "The draft %s is under edit" file)))))
320
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321(provide 'gnus-draft)
322
ab5796a9 323;;; arch-tag: 3d92af58-8c97-4a5c-9db4-a98e85198022
df80b09f 324;;; gnus-draft.el ends here