1 ;;; mm-view.el --- Functions for viewing MIME objects
2 ;; Copyright (C) 1998,99 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 "fill-flowed")
37 (autoload 'diff-mode "diff-mode"))
39 ;; Avoid byte compile warning.
40 (defvar gnus-article-mime-handles)
43 ;;; Functions for displaying various formats inline
45 (defun mm-inline-image-emacs (handle)
48 (string (copy-sequence "[MM-INLINED-IMAGE]"))
52 (setq overlay (make-overlay (point) (point) (current-buffer)))
53 (put-text-property 0 (length string) 'display (mm-get-image handle) string)
54 (overlay-put overlay 'before-string string)
56 (mm-handle-set-undisplayer
59 (let (buffer-read-only)
60 (delete-overlay ,overlay)
61 (delete-region ,(set-marker (make-marker) b)
62 ,(set-marker (make-marker) (point))))))))
64 (defun mm-inline-image-xemacs (handle)
66 (annot (make-annotation (mm-get-image handle) nil 'text))
69 (mm-handle-set-undisplayer
72 (let (buffer-read-only)
73 (delete-annotation ,annot)
74 (delete-region ,(set-marker (make-marker) b)
75 ,(set-marker (make-marker) (point))))))
76 (set-extent-property annot 'mm t)
77 (set-extent-property annot 'duplicable t)))
79 (defun mm-inline-image (handle)
81 (mm-inline-image-xemacs handle)
82 (mm-inline-image-emacs handle)))
84 (defvar mm-w3-setup nil)
92 (setq mm-w3-setup t)))
94 (defun mm-inline-text (handle)
95 (let ((type (mm-handle-media-subtype handle))
96 text buffer-read-only)
100 (setq text (mm-get-part handle))
102 (url-standalone-mode t)
104 (url-generic-parse-url (format "cid:%s" (mm-handle-id handle))))
105 (width (window-width))
106 (charset (mail-content-type-get
107 (mm-handle-type handle) 'charset)))
111 (narrow-to-region b (point))
112 (goto-char (point-min))
113 (if (or (and (boundp 'w3-meta-content-type-charset-regexp)
115 w3-meta-content-type-charset-regexp nil t))
116 (and (boundp 'w3-meta-charset-content-type-regexp)
118 w3-meta-charset-content-type-regexp nil t)))
119 (setq charset (w3-coding-system-for-mime-charset
120 (buffer-substring-no-properties
123 (delete-region (point-min) (point-max))
124 (insert (mm-decode-string text charset))
125 (save-window-excursion
127 (let ((w3-strict-width width)
128 (url-standalone-mode t))
130 (w3-region (point-min) (point-max))
132 (mm-handle-set-undisplayer
135 (let (buffer-read-only)
136 (if (functionp 'remove-specifier)
137 (mapcar (lambda (prop)
139 (face-property 'default prop)
141 '(background background-pixmap foreground)))
142 (delete-region ,(point-min-marker)
143 ,(point-max-marker)))))))))
144 ((or (equal type "enriched")
145 (equal type "richtext"))
147 (mm-with-unibyte-buffer
148 (mm-insert-part handle)
149 (save-window-excursion
150 (enriched-decode (point-min) (point-max))
151 (setq text (buffer-string)))))
152 (mm-insert-inline handle text))
153 ((equal type "x-vcard")
157 (if (fboundp 'vcard-pretty-print)
158 (vcard-pretty-print (mm-get-part handle))
160 (vcard-parse-string (mm-get-part handle)
161 'vcard-standard-filter))))))
163 (setq text (mm-get-part handle))
165 (charset (mail-content-type-get
166 (mm-handle-type handle) 'charset)))
167 (insert (mm-decode-string text charset))
168 (when (and (equal type "plain")
169 (equal (cdr (assoc 'format (mm-handle-type handle)))
172 (narrow-to-region b (point))
175 (goto-char (point-max))))
177 (narrow-to-region b (point))
178 (set-text-properties (point-min) (point-max) nil)
179 (mm-handle-set-undisplayer
182 (let (buffer-read-only)
183 (delete-region ,(point-min-marker)
184 ,(point-max-marker)))))))))))
186 (defun mm-insert-inline (handle text)
187 "Insert TEXT inline from HANDLE."
190 (mm-handle-set-undisplayer
193 (let (buffer-read-only)
194 (delete-region ,(set-marker (make-marker) b)
195 ,(set-marker (make-marker) (point))))))))
197 (defun mm-inline-audio (handle)
198 (message "Not implemented"))
200 (defun mm-view-sound-file ()
201 (message "Not implemented"))
203 (defun mm-w3-prepare-buffer ()
205 (let ((url-standalone-mode t))
206 (w3-prepare-buffer)))
208 (defun mm-view-message ()
209 (mm-enable-multibyte)
211 (let (gnus-article-mime-handles)
212 ;; Double decode problem may happen. See mm-inline-message.
213 (run-hooks 'gnus-article-decode-hook)
214 (gnus-article-prepare-display)
215 (setq handles gnus-article-mime-handles))
217 (setq gnus-article-mime-handles
218 (nconc gnus-article-mime-handles
219 (if (listp (car handles))
220 handles (list handles))))))
222 (goto-char (point-min)))
224 (defun mm-inline-message (handle)
226 (charset (mail-content-type-get
227 (mm-handle-type handle) 'charset))
228 gnus-displaying-mime handles)
231 (setq charset (intern (downcase charset)))
232 (when (eq charset 'us-ascii)
236 (narrow-to-region b b)
237 (mm-insert-part handle)
238 (let (gnus-article-mime-handles
239 (gnus-newsgroup-charset
240 (or charset gnus-newsgroup-charset)))
241 (run-hooks 'gnus-article-decode-hook)
242 (gnus-article-prepare-display)
243 (setq handles gnus-article-mime-handles))
244 (goto-char (point-max))
247 (insert "----------\n\n")
249 (setq gnus-article-mime-handles
250 (nconc gnus-article-mime-handles
251 (if (listp (car handles))
252 handles (list handles)))))
253 (mm-handle-set-undisplayer
256 (let (buffer-read-only)
258 ;; This is only valid on XEmacs.
259 (mapcar (lambda (prop)
261 (face-property 'default prop) (current-buffer)))
262 '(background background-pixmap foreground))
264 (delete-region ,(point-min-marker) ,(point-max-marker)))))))))
266 (defun mm-display-patch-inline (handle)
269 (mm-insert-part handle)
271 (font-lock-fontify-buffer)
272 (when (fboundp 'extent-list)
273 (map-extents (lambda (ext ignored)
274 (set-extent-property ext 'duplicable t)
276 nil nil nil nil nil 'text-prop))
277 (setq text (buffer-string)))
278 (mm-insert-inline handle text)))
282 ;; mm-view.el ends here