1 ;;; mm-view.el --- Functions for viewing MIME objects
2 ;; Copyright (C) 1998, 1999, 2000 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 (autoload 'diff-mode "diff-mode"))
40 ;;; Functions for displaying various formats inline
42 (defun mm-inline-image-emacs (handle)
45 (string (copy-sequence "[MM-INLINED-IMAGE]"))
49 (setq overlay (make-overlay (point) (point) (current-buffer)))
50 (put-text-property 0 (length string) 'display (mm-get-image handle) string)
51 (overlay-put overlay 'before-string string)
53 (mm-handle-set-undisplayer
56 (let (buffer-read-only)
57 (delete-overlay ,overlay)
58 (delete-region ,(set-marker (make-marker) b)
59 ,(set-marker (make-marker) (point))))))))
61 (defun mm-inline-image-xemacs (handle)
63 (annot (make-annotation (mm-get-image handle) nil 'text))
66 (mm-handle-set-undisplayer
69 (let (buffer-read-only)
70 (delete-annotation ,annot)
71 (delete-region ,(set-marker (make-marker) b)
72 ,(set-marker (make-marker) (point))))))
73 (set-extent-property annot 'mm t)
74 (set-extent-property annot 'duplicable t)))
76 (defun mm-inline-image (handle)
78 (mm-inline-image-xemacs handle)
79 (mm-inline-image-emacs handle)))
81 (defvar mm-w3-setup nil)
89 (setq mm-w3-setup t)))
91 (defun mm-inline-text (handle)
92 (let ((type (mm-handle-media-subtype handle))
93 text buffer-read-only)
97 (setq text (mm-get-part handle))
99 (url-standalone-mode t)
101 (url-generic-parse-url (format "cid:%s" (mm-handle-id handle))))
102 (width (window-width))
103 (charset (mail-content-type-get
104 (mm-handle-type handle) 'charset)))
108 (narrow-to-region b (point))
109 (goto-char (point-min))
110 (if (or (and (boundp 'w3-meta-content-type-charset-regexp)
112 w3-meta-content-type-charset-regexp nil t))
113 (and (boundp 'w3-meta-charset-content-type-regexp)
115 w3-meta-charset-content-type-regexp nil t)))
116 (setq charset (w3-coding-system-for-mime-charset
117 (buffer-substring-no-properties
120 (delete-region (point-min) (point-max))
121 (insert (mm-decode-string text charset))
122 (save-window-excursion
124 (let ((w3-strict-width width)
125 (url-standalone-mode t))
127 (w3-region (point-min) (point-max))
129 (mm-handle-set-undisplayer
132 (let (buffer-read-only)
133 (if (functionp 'remove-specifier)
134 (mapcar (lambda (prop)
136 (face-property 'default prop)
138 '(background background-pixmap foreground)))
139 (delete-region ,(point-min-marker)
140 ,(point-max-marker)))))))))
141 ((or (equal type "enriched")
142 (equal type "richtext"))
144 (mm-with-unibyte-buffer
145 (mm-insert-part handle)
146 (save-window-excursion
147 (enriched-decode (point-min) (point-max))
148 (setq text (buffer-string)))))
149 (mm-insert-inline handle text))
150 ((equal type "x-vcard")
154 (if (fboundp 'vcard-pretty-print)
155 (vcard-pretty-print (mm-get-part handle))
157 (vcard-parse-string (mm-get-part handle)
158 'vcard-standard-filter))))))
160 (setq text (mm-get-part handle))
162 (charset (mail-content-type-get
163 (mm-handle-type handle) 'charset)))
164 (insert (mm-decode-string text charset))
165 (when (and (equal type "plain")
166 (equal (cdr (assoc 'format (mm-handle-type handle)))
169 (narrow-to-region b (point))
172 (goto-char (point-max))))
174 (narrow-to-region b (point))
175 (set-text-properties (point-min) (point-max) nil)
176 (mm-handle-set-undisplayer
179 (let (buffer-read-only)
180 (delete-region ,(point-min-marker)
181 ,(point-max-marker)))))))))))
183 (defun mm-insert-inline (handle text)
184 "Insert TEXT inline from HANDLE."
187 (mm-handle-set-undisplayer
190 (let (buffer-read-only)
191 (delete-region ,(set-marker (make-marker) b)
192 ,(set-marker (make-marker) (point))))))))
194 (defun mm-inline-audio (handle)
195 (message "Not implemented"))
197 (defun mm-view-sound-file ()
198 (message "Not implemented"))
200 (defun mm-w3-prepare-buffer ()
202 (let ((url-standalone-mode t))
203 (w3-prepare-buffer)))
205 (defun mm-view-message ()
206 (mm-enable-multibyte)
208 (let (gnus-article-mime-handles)
209 ;; Double decode problem may happen. See mm-inline-message.
210 (run-hooks 'gnus-article-decode-hook)
211 (gnus-article-prepare-display)
212 (setq handles gnus-article-mime-handles))
214 (setq gnus-article-mime-handles
215 (nconc gnus-article-mime-handles
216 (if (listp (car handles))
217 handles (list handles))))))
219 (goto-char (point-min)))
221 (defun mm-inline-message (handle)
223 (charset (mail-content-type-get
224 (mm-handle-type handle) 'charset))
225 gnus-displaying-mime handles)
228 (setq charset (intern (downcase charset)))
229 (when (eq charset 'us-ascii)
233 (narrow-to-region b b)
234 (mm-insert-part handle)
235 (let (gnus-article-mime-handles
236 ;; disable prepare hook
237 gnus-article-prepare-hook
238 (gnus-newsgroup-charset
239 (or charset gnus-newsgroup-charset)))
240 (run-hooks 'gnus-article-decode-hook)
241 (gnus-article-prepare-display)
242 (setq handles gnus-article-mime-handles))
243 (goto-char (point-max))
246 (insert "----------\n\n")
248 (setq gnus-article-mime-handles
249 (nconc gnus-article-mime-handles
250 (if (listp (car handles))
251 handles (list handles)))))
252 (mm-handle-set-undisplayer
255 (let (buffer-read-only)
257 ;; This is only valid on XEmacs.
258 (mapcar (lambda (prop)
260 (face-property 'default prop) (current-buffer)))
261 '(background background-pixmap foreground))
263 (delete-region ,(point-min-marker) ,(point-max-marker)))))))))
265 (defun mm-display-patch-inline (handle)
268 (mm-insert-part handle)
270 (font-lock-fontify-buffer)
271 (when (fboundp 'extent-list)
272 (map-extents (lambda (ext ignored)
273 (set-extent-property ext 'duplicable t)
275 nil nil nil nil nil 'text-prop))
276 (setq text (buffer-string)))
277 (mm-insert-inline handle text)))
281 ;; mm-view.el ends here