1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
|
;;; mm-view.el --- functions for viewing MIME objects
;; Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; 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 2, 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., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;; Code:
(eval-when-compile (require 'cl))
(require 'mail-parse)
(require 'mailcap)
(require 'mm-bodies)
(require 'mm-decode)
(eval-and-compile
(autoload 'gnus-article-prepare-display "gnus-art")
(autoload 'vcard-parse-string "vcard")
(autoload 'vcard-format-string "vcard")
(autoload 'fill-flowed "flow-fill")
(unless (fboundp 'diff-mode)
(autoload 'diff-mode "diff-mode" "" t nil)))
;;;
;;; Functions for displaying various formats inline
;;;
(defun mm-inline-image-emacs (handle)
(let ((b (point-marker))
buffer-read-only)
(insert "\n")
(put-image (mm-get-image handle) b)
(mm-handle-set-undisplayer
handle
`(lambda () (remove-images ,b (1+ ,b))))))
(defun mm-inline-image-xemacs (handle)
(insert "\n")
(forward-char -1)
(let ((b (point))
(annot (make-annotation (mm-get-image handle) nil 'text))
buffer-read-only)
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-annotation ,annot)
(delete-region ,(set-marker (make-marker) b)
,(set-marker (make-marker) (point))))))
(set-extent-property annot 'mm t)
(set-extent-property annot 'duplicable t)))
(eval-and-compile
(if (featurep 'xemacs)
(defalias 'mm-inline-image 'mm-inline-image-xemacs)
(defalias 'mm-inline-image 'mm-inline-image-emacs)))
(defvar mm-w3-setup nil)
(defun mm-setup-w3 ()
(unless mm-w3-setup
(require 'w3)
(w3-do-setup)
(require 'url)
(require 'w3-vars)
(require 'url-vars)
(setq mm-w3-setup t)))
(defun mm-inline-text (handle)
(let ((type (mm-handle-media-subtype handle))
text buffer-read-only)
(cond
((equal type "html")
(mm-setup-w3)
(setq text (mm-get-part handle))
(let ((b (point))
(url-standalone-mode t)
(url-gateway-unplugged t)
(url-current-object
(url-generic-parse-url (format "cid:%s" (mm-handle-id handle))))
(width (window-width))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset)))
(save-excursion
(insert text)
(save-restriction
(narrow-to-region b (point))
(goto-char (point-min))
(if (or (and (boundp 'w3-meta-content-type-charset-regexp)
(re-search-forward
w3-meta-content-type-charset-regexp nil t))
(and (boundp 'w3-meta-charset-content-type-regexp)
(re-search-forward
w3-meta-charset-content-type-regexp nil t)))
(setq charset
(or (let ((bsubstr (buffer-substring-no-properties
(match-beginning 2)
(match-end 2))))
(if (fboundp 'w3-coding-system-for-mime-charset)
(w3-coding-system-for-mime-charset bsubstr)
(mm-charset-to-coding-system bsubstr)))
charset)))
(delete-region (point-min) (point-max))
(insert (mm-decode-string text charset))
(save-window-excursion
(save-restriction
(let ((w3-strict-width width)
;; Don't let w3 set the global version of
;; this variable.
(fill-column fill-column))
(condition-case var
(w3-region (point-min) (point-max))
(error
(delete-region (point-min) (point-max))
(let ((b (point))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset)))
(if (or (eq charset 'gnus-decoded)
(eq mail-parse-charset 'gnus-decoded))
(save-restriction
(narrow-to-region (point) (point))
(mm-insert-part handle)
(goto-char (point-max)))
(insert (mm-decode-string (mm-get-part handle)
charset))))
(message
"Error while rendering html; showing as text/plain"))))))
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(if (functionp 'remove-specifier)
(mapcar (lambda (prop)
(remove-specifier
(face-property 'default prop)
(current-buffer)))
'(background background-pixmap foreground)))
(delete-region ,(point-min-marker)
,(point-max-marker)))))))))
((equal type "x-vcard")
(mm-insert-inline
handle
(concat "\n-- \n"
(ignore-errors
(if (fboundp 'vcard-pretty-print)
(vcard-pretty-print (mm-get-part handle))
(vcard-format-string
(vcard-parse-string (mm-get-part handle)
'vcard-standard-filter)))))))
(t
(let ((b (point))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset)))
(if (or (eq charset 'gnus-decoded)
;; This is probably not entirely correct, but
;; makes rfc822 parts with embedded multiparts work.
(eq mail-parse-charset 'gnus-decoded))
(save-restriction
(narrow-to-region (point) (point))
(mm-insert-part handle)
(goto-char (point-max)))
(insert (mm-decode-string (mm-get-part handle) charset)))
(when (and (equal type "plain")
(equal (cdr (assoc 'format (mm-handle-type handle)))
"flowed"))
(save-restriction
(narrow-to-region b (point))
(goto-char b)
(fill-flowed)
(goto-char (point-max))))
(save-restriction
(narrow-to-region b (point))
(set-text-properties (point-min) (point-max) nil)
(when (or (equal type "enriched")
(equal type "richtext"))
(enriched-decode (point-min) (point-max)))
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-region ,(point-min-marker)
,(point-max-marker)))))))))))
(defun mm-insert-inline (handle text)
"Insert TEXT inline from HANDLE."
(let ((b (point)))
(insert text)
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-region ,(set-marker (make-marker) b)
,(set-marker (make-marker) (point))))))))
(defun mm-inline-audio (handle)
(message "Not implemented"))
(defun mm-view-sound-file ()
(message "Not implemented"))
(defun mm-w3-prepare-buffer ()
(require 'w3)
(let ((url-standalone-mode t)
(url-gateway-unplugged t))
(w3-prepare-buffer)))
(defun mm-view-message ()
(mm-enable-multibyte)
(let (handles)
(let (gnus-article-mime-handles)
;; Double decode problem may happen. See mm-inline-message.
(run-hooks 'gnus-article-decode-hook)
(gnus-article-prepare-display)
(setq handles gnus-article-mime-handles))
(when handles
(setq gnus-article-mime-handles
(nconc gnus-article-mime-handles
(if (listp (car handles))
handles (list handles))))))
(fundamental-mode)
(goto-char (point-min)))
(defun mm-inline-message (handle)
(let ((b (point))
(bolp (bolp))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset))
gnus-displaying-mime handles)
(when (and charset
(stringp charset))
(setq charset (intern (downcase charset)))
(when (eq charset 'us-ascii)
(setq charset nil)))
(save-excursion
(save-restriction
(narrow-to-region b b)
(mm-insert-part handle)
(let (gnus-article-mime-handles
;; disable prepare hook
gnus-article-prepare-hook
(gnus-newsgroup-charset
(or charset gnus-newsgroup-charset)))
(run-hooks 'gnus-article-decode-hook)
(gnus-article-prepare-display)
(setq handles gnus-article-mime-handles))
(goto-char (point-min))
(unless bolp
(insert "\n"))
(goto-char (point-max))
(unless (bolp)
(insert "\n"))
(insert "----------\n\n")
(when handles
(setq gnus-article-mime-handles
(nconc gnus-article-mime-handles
(if (listp (car handles))
handles (list handles)))))
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(if (fboundp 'remove-specifier)
;; This is only valid on XEmacs.
(mapcar (lambda (prop)
(remove-specifier
(face-property 'default prop) (current-buffer)))
'(background background-pixmap foreground)))
(delete-region ,(point-min-marker) ,(point-max-marker)))))))))
(defun mm-display-inline-fontify (handle mode)
(let (text)
(with-temp-buffer
(mm-insert-part handle)
(funcall mode)
(font-lock-fontify-buffer)
(when (fboundp 'extent-list)
(map-extents (lambda (ext ignored)
(set-extent-property ext 'duplicable t)
nil)
nil nil nil nil nil 'text-prop))
(setq text (buffer-string)))
(mm-insert-inline handle text)))
(defun mm-display-patch-inline (handle)
(mm-display-inline-fontify handle 'diff-mode))
(defun mm-display-elisp-inline (handle)
(mm-display-inline-fontify handle 'emacs-lisp-mode))
(provide 'mm-view)
;;; mm-view.el ends here
|
