1 ;;; mm-view.el --- functions for viewing MIME objects
2 ;; Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
5 ;; This file is part of GNU Emacs.
7 ;; GNU Emacs is free software; you can redistribute it and/or modify
8 ;; it under the terms of the GNU General Public License as published by
9 ;; the Free Software Foundation; either version 2, or (at your option)
12 ;; GNU Emacs is distributed in the hope that it will be useful,
13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ;; GNU General Public License for more details.
17 ;; You should have received a copy of the GNU General Public License
18 ;; along with GNU Emacs; see the file COPYING. If not, write to the
19 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 ;; Boston, MA 02111-1307, USA.
26 (eval-when-compile (require 'cl))
33 (autoload 'gnus-article-prepare-display "gnus-art")
34 (autoload 'vcard-parse-string "vcard")
35 (autoload 'vcard-format-string "vcard")
36 (autoload 'fill-flowed "flow-fill")
37 (unless (fboundp 'diff-mode)
38 (autoload 'diff-mode "diff-mode" "" t nil)))
41 ;;; Functions for displaying various formats inline
43 (defun mm-inline-image-emacs (handle)
44 (let ((b (point-marker))
47 (put-image (mm-get-image handle) b)
48 (mm-handle-set-undisplayer
50 `(lambda () (remove-images ,b (1+ ,b))))))
52 (defun mm-inline-image-xemacs (handle)
54 (annot (make-annotation (mm-get-image handle) nil 'text))
57 (mm-handle-set-undisplayer
60 (let (buffer-read-only)
61 (delete-annotation ,annot)
62 (delete-region ,(set-marker (make-marker) b)
63 ,(set-marker (make-marker) (point))))))
64 (set-extent-property annot 'mm t)
65 (set-extent-property annot 'duplicable t)))
68 (if (featurep 'xemacs)
69 (defalias 'mm-inline-image 'mm-inline-image-xemacs)
70 (defalias 'mm-inline-image 'mm-inline-image-emacs)))
72 (defvar mm-w3-setup nil)
80 (setq mm-w3-setup t)))
82 (defun mm-inline-text (handle)
83 (let ((type (mm-handle-media-subtype handle))
84 text buffer-read-only)
88 (setq text (mm-get-part handle))
90 (url-standalone-mode t)
92 (url-generic-parse-url (format "cid:%s" (mm-handle-id handle))))
93 (width (window-width))
94 (charset (mail-content-type-get
95 (mm-handle-type handle) 'charset)))
99 (narrow-to-region b (point))
100 (goto-char (point-min))
101 (if (or (and (boundp 'w3-meta-content-type-charset-regexp)
103 w3-meta-content-type-charset-regexp nil t))
104 (and (boundp 'w3-meta-charset-content-type-regexp)
106 w3-meta-charset-content-type-regexp nil t)))
107 (setq charset (or (w3-coding-system-for-mime-charset
108 (buffer-substring-no-properties
112 (delete-region (point-min) (point-max))
113 (insert (mm-decode-string text charset))
114 (save-window-excursion
116 (let ((w3-strict-width width)
117 ;; Don't let w3 set the global version of
119 (fill-column fill-column)
120 (url-standalone-mode t))
122 (w3-region (point-min) (point-max))
124 (mm-handle-set-undisplayer
127 (let (buffer-read-only)
128 (if (functionp 'remove-specifier)
129 (mapcar (lambda (prop)
131 (face-property 'default prop)
133 '(background background-pixmap foreground)))
134 (delete-region ,(point-min-marker)
135 ,(point-max-marker)))))))))
136 ((or (equal type "enriched")
137 (equal type "richtext"))
139 (mm-with-unibyte-buffer
140 (mm-insert-part handle)
141 (save-window-excursion
142 (enriched-decode (point-min) (point-max))
143 (setq text (buffer-string)))))
144 (mm-insert-inline handle text))
145 ((equal type "x-vcard")
149 (if (fboundp 'vcard-pretty-print)
150 (vcard-pretty-print (mm-get-part handle))
152 (vcard-parse-string (mm-get-part handle)
153 'vcard-standard-filter))))))
156 (charset (mail-content-type-get
157 (mm-handle-type handle) 'charset)))
158 (if (or (eq charset 'gnus-decoded)
159 ;; This is probably not entirely correct, but
160 ;; makes rfc822 parts with embedded multiparts work.
161 (eq mail-parse-charset 'gnus-decoded))
162 (mm-insert-part handle)
163 (insert (mm-decode-string (mm-get-part handle) charset)))
164 (when (and (equal type "plain")
165 (equal (cdr (assoc 'format (mm-handle-type handle)))
168 (narrow-to-region b (point))
171 (goto-char (point-max))))
173 (narrow-to-region b (point))
174 (set-text-properties (point-min) (point-max) nil)
175 (mm-handle-set-undisplayer
178 (let (buffer-read-only)
179 (delete-region ,(point-min-marker)
180 ,(point-max-marker)))))))))))
182 (defun mm-insert-inline (handle text)
183 "Insert TEXT inline from HANDLE."
186 (mm-handle-set-undisplayer
189 (let (buffer-read-only)
190 (delete-region ,(set-marker (make-marker) b)
191 ,(set-marker (make-marker) (point))))))))
193 (defun mm-inline-audio (handle)
194 (message "Not implemented"))
196 (defun mm-view-sound-file ()
197 (message "Not implemented"))
199 (defun mm-w3-prepare-buffer ()
201 (let ((url-standalone-mode t))
202 (w3-prepare-buffer)))
204 (defun mm-view-message ()
205 (mm-enable-multibyte)
207 (let (gnus-article-mime-handles)
208 ;; Double decode problem may happen. See mm-inline-message.
209 (run-hooks 'gnus-article-decode-hook)
210 (gnus-article-prepare-display)
211 (setq handles gnus-article-mime-handles))
213 (setq gnus-article-mime-handles
214 (nconc gnus-article-mime-handles
215 (if (listp (car handles))
216 handles (list handles))))))
218 (goto-char (point-min)))
220 (defun mm-inline-message (handle)
222 (charset (mail-content-type-get
223 (mm-handle-type handle) 'charset))
224 gnus-displaying-mime handles)
227 (setq charset (intern (downcase charset)))
228 (when (eq charset 'us-ascii)
232 (narrow-to-region b b)
233 (mm-insert-part handle)
234 (let (gnus-article-mime-handles
235 ;; disable prepare hook
236 gnus-article-prepare-hook
237 (gnus-newsgroup-charset
238 (or charset gnus-newsgroup-charset)))
239 (run-hooks 'gnus-article-decode-hook)
240 (gnus-article-prepare-display)
241 (setq handles gnus-article-mime-handles))
242 (goto-char (point-max))
245 (insert "----------\n\n")
247 (setq gnus-article-mime-handles
248 (nconc gnus-article-mime-handles
249 (if (listp (car handles))
250 handles (list handles)))))
251 (mm-handle-set-undisplayer
254 (let (buffer-read-only)
255 (if (fboundp 'remove-specifier)
256 ;; This is only valid on XEmacs.
257 (mapcar (lambda (prop)
259 (face-property 'default prop) (current-buffer)))
260 '(background background-pixmap foreground)))
261 (delete-region ,(point-min-marker) ,(point-max-marker)))))))))
263 (defun mm-display-inline-fontify (handle mode)
266 (mm-insert-part handle)
268 (font-lock-fontify-buffer)
269 (when (fboundp 'extent-list)
270 (map-extents (lambda (ext ignored)
271 (set-extent-property ext 'duplicable t)
273 nil nil nil nil nil 'text-prop))
274 (setq text (buffer-string)))
275 (mm-insert-inline handle text)))
277 (defun mm-display-patch-inline (handle)
278 (mm-display-inline-fontify handle 'diff-mode))
280 (defun mm-display-elisp-inline (handle)
281 (mm-display-inline-fontify handle 'emacs-lisp-mode))
285 ;;; mm-view.el ends here