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emacs/lisp/gnus/gnus-draft.el
2008-02-29 04:03:49 +00:00

334 lines
11 KiB
EmacsLisp

;;; gnus-draft.el --- draft message support for Gnus
;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; 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, 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(require 'gnus)
(require 'gnus-sum)
(require 'message)
(require 'gnus-msg)
(require 'nndraft)
(require 'gnus-agent)
(eval-when-compile (require 'cl))
;;; Draft minor mode
(defvar gnus-draft-mode nil
"Minor mode for providing a draft summary buffers.")
(defvar gnus-draft-mode-map nil)
(unless gnus-draft-mode-map
(setq gnus-draft-mode-map (make-sparse-keymap))
(gnus-define-keys gnus-draft-mode-map
"Dt" gnus-draft-toggle-sending
"e" gnus-draft-edit-message ;; Use `B w' for `gnus-summary-edit-article'
"De" gnus-draft-edit-message
"Ds" gnus-draft-send-message
"DS" gnus-draft-send-all-messages))
(defun gnus-draft-make-menu-bar ()
(unless (boundp 'gnus-draft-menu)
(easy-menu-define
gnus-draft-menu gnus-draft-mode-map ""
'("Drafts"
["Toggle whether to send" gnus-draft-toggle-sending t]
["Edit" gnus-draft-edit-message t]
["Send selected message(s)" gnus-draft-send-message t]
["Send all messages" gnus-draft-send-all-messages t]
["Delete draft" gnus-summary-delete-article t]))))
(defun gnus-draft-mode (&optional arg)
"Minor mode for providing a draft summary buffers.
\\{gnus-draft-mode-map}"
(interactive "P")
(when (eq major-mode 'gnus-summary-mode)
(when (set (make-local-variable 'gnus-draft-mode)
(if (null arg) (not gnus-draft-mode)
(> (prefix-numeric-value arg) 0)))
;; Set up the menu.
(when (gnus-visual-p 'draft-menu 'menu)
(gnus-draft-make-menu-bar))
(add-minor-mode 'gnus-draft-mode " Draft" gnus-draft-mode-map)
(gnus-run-hooks 'gnus-draft-mode-hook))))
;;; Commands
(defun gnus-draft-toggle-sending (article)
"Toggle whether to send an article or not."
(interactive (list (gnus-summary-article-number)))
(if (gnus-draft-article-sendable-p article)
(progn
(push article gnus-newsgroup-unsendable)
(gnus-summary-mark-article article gnus-unsendable-mark))
(setq gnus-newsgroup-unsendable
(delq article gnus-newsgroup-unsendable))
(gnus-summary-mark-article article gnus-unread-mark))
(gnus-summary-position-point))
(defun gnus-draft-edit-message ()
"Enter a mail/post buffer to edit and send the draft."
(interactive)
(let ((article (gnus-summary-article-number))
(group gnus-newsgroup-name))
(gnus-draft-check-draft-articles (list article))
(gnus-summary-mark-as-read article gnus-canceled-mark)
(gnus-draft-setup article group t)
(set-buffer-modified-p t)
(save-excursion
(save-restriction
(message-narrow-to-headers)
(message-remove-header "date")))
(let ((message-draft-headers
(delq 'Date (copy-sequence message-draft-headers))))
(save-buffer))
(let ((gnus-verbose-backends nil))
(gnus-request-expire-articles (list article) group t))
(push
`((lambda ()
(when (gnus-buffer-exists-p ,gnus-summary-buffer)
(save-excursion
(set-buffer ,gnus-summary-buffer)
(gnus-cache-possibly-remove-article ,article nil nil nil t)))))
message-send-actions)))
(defun gnus-draft-send-message (&optional n)
"Send the current draft(s).
Obeys the standard process/prefix convention."
(interactive "P")
(let* ((articles (gnus-summary-work-articles n))
(total (length articles))
article)
(gnus-draft-check-draft-articles articles)
(while (setq article (pop articles))
(gnus-summary-remove-process-mark article)
(unless (memq article gnus-newsgroup-unsendable)
(let ((message-sending-message
(format "Sending message %d of %d..."
(- total (length articles)) total)))
(gnus-draft-send article gnus-newsgroup-name t))
(gnus-summary-mark-article article gnus-canceled-mark)))))
(defun gnus-draft-send (article &optional group interactive)
"Send message ARTICLE."
(let* ((is-queue (or (not group)
(equal group "nndraft:queue")))
(message-syntax-checks (if interactive message-syntax-checks
'dont-check-for-anything-just-trust-me))
(message-hidden-headers nil)
(message-inhibit-body-encoding (or is-queue
message-inhibit-body-encoding))
(message-send-hook (and (not is-queue)
message-send-hook))
(message-setup-hook (and (not is-queue)
message-setup-hook))
(message-signature (and (not is-queue)
message-signature))
(gnus-agent-queue-mail (and (not is-queue)
gnus-agent-queue-mail))
(rfc2047-encode-encoded-words nil)
type method move-to)
(gnus-draft-setup article (or group "nndraft:queue"))
;; We read the meta-information that says how and where
;; this message is to be sent.
(save-restriction
(message-narrow-to-headers)
(when (re-search-forward
(concat "^" (regexp-quote gnus-agent-target-move-group-header)
":") nil t)
(skip-syntax-forward "-")
(setq move-to (buffer-substring (point) (point-at-eol)))
(message-remove-header gnus-agent-target-move-group-header))
(goto-char (point-min))
(when (re-search-forward
(concat "^" (regexp-quote gnus-agent-meta-information-header) ":")
nil t)
(setq type (ignore-errors (read (current-buffer)))
method (ignore-errors (read (current-buffer))))
(message-remove-header gnus-agent-meta-information-header)))
;; Let Agent restore any GCC lines and have message.el perform them.
(gnus-agent-restore-gcc)
;; Then we send it. If we have no meta-information, we just send
;; it and let Message figure out how.
(when (and (or (null method)
(gnus-server-opened method)
(gnus-open-server method))
(if type
(let ((message-this-is-news (eq type 'news))
(message-this-is-mail (eq type 'mail))
(gnus-post-method method)
(message-post-method method))
(if move-to
(gnus-inews-do-gcc move-to)
(message-send-and-exit)))
(if move-to
(gnus-inews-do-gcc move-to)
(message-send-and-exit))))
(let ((gnus-verbose-backends nil))
(gnus-request-expire-articles
(list article) (or group "nndraft:queue") t)))))
(defun gnus-draft-send-all-messages ()
"Send all the sendable drafts."
(interactive)
(when (or
gnus-expert-user
(gnus-y-or-n-p
"Send all drafts? "))
(gnus-uu-mark-buffer)
(gnus-draft-send-message)))
(defun gnus-group-send-queue ()
"Send all sendable articles from the queue group."
(interactive)
(when (or gnus-plugged
(not gnus-agent-prompt-send-queue)
(gnus-y-or-n-p "Gnus is unplugged; really send queue? "))
(gnus-activate-group "nndraft:queue")
(save-excursion
(let* ((articles (nndraft-articles))
(unsendable (gnus-uncompress-range
(cdr (assq 'unsend
(gnus-info-marks
(gnus-get-info "nndraft:queue"))))))
(gnus-posting-styles nil)
(total (length articles))
article)
(while (setq article (pop articles))
(unless (memq article unsendable)
(let ((message-sending-message
(format "Sending message %d of %d..."
(- total (length articles)) total)))
(gnus-draft-send article))))))))
;;;###autoload
(defun gnus-draft-reminder ()
"Reminder user if there are unsent drafts."
(interactive)
(if (gnus-alive-p)
(let (active)
(catch 'continue
(dolist (group '("nndraft:drafts" "nndraft:queue"))
(setq active (gnus-activate-group group))
(if (and active (>= (cdr active) (car active)))
(if (y-or-n-p "There are unsent drafts. Confirm to exit? ")
(throw 'continue t)
(error "Stop!"))))))))
(defcustom gnus-draft-setup-hook nil
"Hook run after setting up a draft buffer."
:group 'gnus-message
:version "23.1" ;; No Gnus
:type 'hook)
;;; Utility functions
;;;!!!If this is byte-compiled, it fails miserably.
;;;!!!This is because `gnus-setup-message' uses uninterned symbols.
;;;!!!This has been fixed in recent versions of Emacs and XEmacs,
;;;!!!but for the time being, we'll just run this tiny function uncompiled.
(progn
(defun gnus-draft-setup (narticle group &optional restore)
(let (ga)
(gnus-setup-message 'forward
(let ((article narticle))
(message-mail)
(erase-buffer)
(if (not (gnus-request-restore-buffer article group))
(error "Couldn't restore the article")
(when (and restore
(equal group "nndraft:queue"))
(mime-to-mml))
;; Insert the separator.
(goto-char (point-min))
(search-forward "\n\n")
(forward-char -1)
(save-restriction
(narrow-to-region (point-min) (point))
(setq ga
(message-fetch-field gnus-draft-meta-information-header)))
(insert mail-header-separator)
(forward-line 1)
(message-set-auto-save-file-name))))
(gnus-backlog-remove-article group narticle)
(when (and ga
(ignore-errors (setq ga (car (read-from-string ga)))))
(setq gnus-newsgroup-name
(if (equal (car ga) "") nil (car ga)))
(gnus-configure-posting-styles)
(setq gnus-message-group-art (cons gnus-newsgroup-name (cadr ga)))
(setq message-post-method
`(lambda (arg)
(gnus-post-method arg ,(car ga))))
(unless (equal (cadr ga) "")
(dolist (article (cdr ga))
(message-add-action
`(progn
(gnus-add-mark ,(car ga) 'replied ,article)
(gnus-request-set-mark ,(car ga) (list (list (list ,article)
'add '(reply)))))
'send))))
(run-hooks 'gnus-draft-setup-hook))))
(defun gnus-draft-article-sendable-p (article)
"Say whether ARTICLE is sendable."
(not (memq article gnus-newsgroup-unsendable)))
(defun gnus-draft-check-draft-articles (articles)
"Check whether the draft articles ARTICLES are under edit."
(when (equal gnus-newsgroup-name "nndraft:drafts")
(let ((buffers (buffer-list))
file buffs buff)
(save-current-buffer
(while (and articles
(not buff))
(setq file (nndraft-article-filename (pop articles))
buffs buffers)
(while buffs
(set-buffer (setq buff (pop buffs)))
(if (and buffer-file-name
(string-equal (file-truename buffer-file-name)
(file-truename file))
(buffer-modified-p))
(setq buffs nil)
(setq buff nil)))))
(when buff
(let* ((window (get-buffer-window buff t))
(frame (and window (window-frame window))))
(if frame
(gnus-select-frame-set-input-focus frame)
(pop-to-buffer buff t)))
(error "The draft %s is under edit" file)))))
(provide 'gnus-draft)
;;; arch-tag: 3d92af58-8c97-4a5c-9db4-a98e85198022
;;; gnus-draft.el ends here