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1 | ;;; gnus-dired.el --- utility functions where gnus and dired meet |
2 | ||
3 | ;; Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 | |
4 | ;; Free Software Foundation, Inc. | |
5 | ||
6 | ;; Authors: Benjamin Rutt <brutt@bloomington.in.us>, | |
7 | ;; Shenghuo Zhu <zsh@cs.rochester.edu> | |
8 | ;; Keywords: mail, news, extensions | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs 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) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs 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. | |
21 | ||
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 | |
24 | ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ||
29 | ;; This package provides utility functions for intersections of gnus | |
30 | ;; and dired. To enable the gnus-dired-mode minor mode which will | |
31 | ;; have the effect of installing keybindings in dired-mode, place the | |
32 | ;; following in your ~/.gnus: | |
33 | ||
34 | ;; (require 'gnus-dired) ;, isn't needed due to autoload cookies | |
35 | ;; (add-hook 'dired-mode-hook 'turn-on-gnus-dired-mode) | |
36 | ||
37 | ;; Note that if you visit dired buffers before your ~/.gnus file has | |
38 | ;; been read, those dired buffers won't have the keybindings in | |
39 | ;; effect. To get around that problem, you may want to add the above | |
40 | ;; statements to your ~/.emacs instead. | |
41 | ||
42 | ;;; Code: | |
43 | ||
44 | (require 'dired) | |
45 | (require 'gnus-ems) | |
46 | (require 'gnus-msg) | |
47 | (require 'gnus-util) | |
48 | (require 'message) | |
49 | (require 'mm-encode) | |
50 | (require 'mml) | |
51 | ||
52 | (defvar gnus-dired-mode nil | |
53 | "Minor mode for intersections of gnus and dired.") | |
54 | ||
55 | (defvar gnus-dired-mode-map nil) | |
56 | ||
57 | (unless gnus-dired-mode-map | |
58 | (setq gnus-dired-mode-map (make-sparse-keymap)) | |
59 | ||
60 | (gnus-define-keys gnus-dired-mode-map | |
61 | "\C-c\C-m\C-a" gnus-dired-attach | |
62 | "\C-c\C-m\C-l" gnus-dired-find-file-mailcap | |
63 | "\C-c\C-m\C-p" gnus-dired-print)) | |
64 | ||
65 | (defun gnus-dired-mode (&optional arg) | |
66 | "Minor mode for intersections of gnus and dired. | |
67 | ||
68 | \\{gnus-dired-mode-map}" | |
69 | (interactive "P") | |
70 | (when (eq major-mode 'dired-mode) | |
71 | (set (make-local-variable 'gnus-dired-mode) | |
72 | (if (null arg) (not gnus-dired-mode) | |
73 | (> (prefix-numeric-value arg) 0))) | |
74 | (when gnus-dired-mode | |
75 | (gnus-add-minor-mode 'gnus-dired-mode "" gnus-dired-mode-map) | |
76 | (gnus-run-hooks 'gnus-dired-mode-hook)))) | |
77 | ||
78 | ;;;###autoload | |
79 | (defun turn-on-gnus-dired-mode () | |
80 | "Convenience method to turn on gnus-dired-mode." | |
81 | (gnus-dired-mode 1)) | |
82 | ||
83 | ;; Method to attach files to a gnus composition. | |
84 | (defun gnus-dired-attach (files-to-attach) | |
85 | "Attach dired's marked files to a gnus message composition. | |
86 | If called non-interactively, FILES-TO-ATTACH should be a list of | |
87 | filenames." | |
88 | (interactive | |
89 | (list | |
90 | (delq nil | |
91 | (mapcar | |
92 | ;; don't attach directories | |
93 | (lambda (f) (if (file-directory-p f) nil f)) | |
94 | (nreverse (dired-map-over-marks (dired-get-filename) nil)))))) | |
95 | (let ((destination nil) | |
96 | (files-str nil) | |
97 | (bufs nil)) | |
98 | ;; warn if user tries to attach without any files marked | |
99 | (if (null files-to-attach) | |
100 | (error "No files to attach") | |
101 | (setq files-str | |
102 | (mapconcat | |
103 | (lambda (f) (file-name-nondirectory f)) | |
104 | files-to-attach ", ")) | |
105 | (setq bufs (message-buffers)) | |
106 | ||
107 | ;; set up destination message buffer | |
108 | (if (and bufs | |
109 | (y-or-n-p "Attach files to existing message buffer? ")) | |
110 | (setq destination | |
111 | (if (= (length bufs) 1) | |
112 | (get-buffer (car bufs)) | |
113 | (completing-read "Attach to which message buffer: " | |
114 | (mapcar | |
115 | (lambda (b) | |
116 | (cons b (get-buffer b))) | |
117 | bufs) | |
118 | nil t))) | |
119 | ;; setup a new gnus message buffer | |
120 | (gnus-setup-message 'message (message-mail)) | |
121 | (setq destination (current-buffer))) | |
122 | ||
123 | ;; set buffer to destination buffer, and attach files | |
124 | (set-buffer destination) | |
125 | (goto-char (point-max)) ;attach at end of buffer | |
126 | (while files-to-attach | |
127 | (mml-attach-file (car files-to-attach) | |
128 | (or (mm-default-file-encoding (car files-to-attach)) | |
129 | "application/octet-stream") nil) | |
130 | (setq files-to-attach (cdr files-to-attach))) | |
131 | (message "Attached file(s) %s" files-str)))) | |
132 | ||
133 | (autoload 'mailcap-parse-mailcaps "mailcap" "" t) | |
134 | ||
135 | (defun gnus-dired-find-file-mailcap (&optional file-name arg) | |
136 | "In dired, visit FILE-NAME according to the mailcap file. | |
137 | If ARG is non-nil, open it in a new buffer." | |
138 | (interactive (list | |
139 | (file-name-sans-versions (dired-get-filename) t) | |
140 | current-prefix-arg)) | |
141 | (mailcap-parse-mailcaps) | |
142 | (if (file-exists-p file-name) | |
143 | (let (mime-type method) | |
144 | (if (and (not arg) | |
145 | (not (file-directory-p file-name)) | |
146 | (string-match "\\.[^\\.]+$" file-name) | |
147 | (setq mime-type | |
148 | (mailcap-extension-to-mime | |
149 | (match-string 0 file-name))) | |
150 | (stringp | |
151 | (setq method | |
152 | (cdr (assoc 'viewer | |
153 | (car (mailcap-mime-info mime-type | |
154 | 'all))))))) | |
155 | (let ((view-command (mm-mailcap-command method file-name nil))) | |
156 | (message "viewing via %s" view-command) | |
157 | (start-process "*display*" | |
158 | nil | |
159 | shell-file-name | |
160 | shell-command-switch | |
161 | view-command)) | |
162 | (find-file file-name))) | |
163 | (if (file-symlink-p file-name) | |
164 | (error "File is a symlink to a nonexistent target") | |
165 | (error "File no longer exists; type `g' to update Dired buffer")))) | |
166 | ||
167 | (defun gnus-dired-print (&optional file-name print-to) | |
168 | "In dired, print FILE-NAME according to the mailcap file. | |
169 | ||
170 | If there is no print command, print in a PostScript image. If the | |
171 | optional argument PRINT-TO is nil, send the image to the printer. If | |
172 | PRINT-TO is a string, save the PostScript image in a file with that | |
173 | name. If PRINT-TO is a number, prompt the user for the name of the | |
174 | file to save in." | |
175 | (interactive (list | |
176 | (file-name-sans-versions (dired-get-filename) t) | |
177 | (ps-print-preprint current-prefix-arg))) | |
178 | (mailcap-parse-mailcaps) | |
179 | (cond | |
180 | ((file-directory-p file-name) | |
181 | (error "Can't print a directory")) | |
182 | ((file-exists-p file-name) | |
183 | (let (mime-type method) | |
184 | (if (and (string-match "\\.[^\\.]+$" file-name) | |
185 | (setq mime-type | |
186 | (mailcap-extension-to-mime | |
187 | (match-string 0 file-name))) | |
188 | (stringp | |
189 | (setq method (mailcap-mime-info mime-type "print")))) | |
190 | (call-process shell-file-name nil | |
191 | (generate-new-buffer " *mm*") | |
192 | nil | |
193 | shell-command-switch | |
194 | (mm-mailcap-command method file-name mime-type)) | |
195 | (with-temp-buffer | |
196 | (insert-file-contents file-name) | |
197 | (gnus-print-buffer)) | |
198 | (ps-despool print-to)))) | |
199 | ((file-symlink-p file-name) | |
200 | (error "File is a symlink to a nonexistent target")) | |
201 | (t | |
202 | (error "File no longer exists; type `g' to update Dired buffer")))) | |
203 | ||
204 | (provide 'gnus-dired) | |
205 | ||
206 | ;;; arch-tag: 44737731-e445-4638-a31e-713c7590ec76 | |
207 | ;;; gnus-dired.el ends here |