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1 ;;; tm-view.el --- interactive MIME viewer for GNU Emacs
2
3 ;; Copyright (C) 1995,1996 Free Software Foundation, Inc.
4
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Created: 1994/7/13 (1994/8/31 obsolete tm-body.el)
7 ;; Version: $Revision: 1.1.1.1 $
8 ;; Keywords: mail, news, MIME, multimedia
9
10 ;; This file is part of tm (Tools for MIME).
11
12 ;; This program is free software; you can redistribute it and/or
13 ;; modify it under the terms of the GNU General Public License as
14 ;; published by the Free Software Foundation; either version 2, or (at
15 ;; your option) any later version.
16
17 ;; This program is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; 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 the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
26
27 ;;; Code:
28
29 (require 'tl-str)
30 (require 'tl-list)
31 (require 'tl-atype)
32 (require 'tl-misc)
33 (require 'std11)
34 (require 'mel)
35 (require 'tm-ew-d)
36 (require 'tm-def)
37 (require 'tm-parse)
38 (require 'tm-text)
39
40
41 ;;; @ version
42 ;;;
43
44 (defconst mime-viewer/RCS-ID
45 "$Id: tm-view.el,v 1.1.1.1 1996/12/18 03:55:32 steve Exp $")
46
47 (defconst mime-viewer/version (get-version-string mime-viewer/RCS-ID))
48 (defconst mime/viewer-version mime-viewer/version)
49
50
51 ;;; @ variables
52 ;;;
53
54 (defvar mime/content-decoding-condition
55 '(((type . "text/plain")
56 (method "tm-plain" nil 'file 'type 'encoding 'mode 'name)
57 (mode "play" "print")
58 )
59 ((type . "text/html")
60 (method "tm-html" nil 'file 'type 'encoding 'mode 'name)
61 (mode . "play")
62 )
63 ((type . "text/x-rot13-47")
64 (method . mime-article/decode-caesar)
65 (mode . "play")
66 )
67 ((type . "audio/basic")
68 (method "tm-au" nil 'file 'type 'encoding 'mode 'name)
69 (mode . "play")
70 )
71
72 ((type . "image/jpeg")
73 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
74 (mode "play" "print")
75 )
76 ((type . "image/gif")
77 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
78 (mode "play" "print")
79 )
80 ((type . "image/tiff")
81 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
82 (mode "play" "print")
83 )
84 ((type . "image/x-tiff")
85 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
86 (mode "play" "print")
87 )
88 ((type . "image/x-xbm")
89 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
90 (mode "play" "print")
91 )
92 ((type . "image/x-pic")
93 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
94 (mode "play" "print")
95 )
96 ((type . "image/x-mag")
97 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
98 (mode "play" "print")
99 )
100
101 ((type . "video/mpeg")
102 (method "tm-mpeg" nil 'file 'type 'encoding 'mode 'name)
103 (mode . "play")
104 )
105
106 ((type . "application/postscript")
107 (method "tm-ps" nil 'file 'type 'encoding 'mode 'name)
108 (mode "play" "print")
109 )
110 ((type . "application/octet-stream")
111 (method "tm-file" nil 'file 'type 'encoding 'mode 'name)
112 (mode "play" "print")
113 )
114
115 ;;((type . "message/external-body")
116 ;; (method "xterm" nil
117 ;; "-e" "showexternal"
118 ;; 'file '"access-type" '"name" '"site" '"directory"))
119 ((type . "message/rfc822")
120 (method . mime-article/view-message/rfc822)
121 (mode . "play")
122 )
123 ((type . "message/partial")
124 (method . mime-article/decode-message/partial)
125 (mode . "play")
126 )
127
128 ((method "metamail" t "-m" "tm" "-x" "-d" "-z" "-e" 'file)
129 (mode . "play")
130 )
131 ((method "tm-file" nil 'file 'type 'encoding 'mode 'name)
132 (mode . "extract")
133 )
134 ))
135
136 (defvar mime-viewer/childrens-header-showing-Content-Type-list
137 '("message/rfc822" "message/news"))
138
139 (defvar mime-viewer/default-showing-Content-Type-list
140 '("text/plain" nil "text/richtext" "text/enriched"
141 "text/x-latex" "application/x-latex"
142 "message/delivery-status"
143 "application/pgp" "text/x-pgp"
144 "application/octet-stream"
145 "application/x-selection" "application/x-comment"))
146
147 (defvar mime-viewer/content-button-ignored-ctype-list
148 '("application/x-selection"))
149
150 (defvar mime-viewer/content-button-visible-ctype-list
151 '("application/pgp"))
152
153 (defvar mime-viewer/uuencode-encoding-name-list '("x-uue" "x-uuencode"))
154
155 (defvar mime-viewer/ignored-field-list
156 '(".*Received" ".*Path" ".*Id" "References"
157 "Replied" "Errors-To"
158 "Lines" "Sender" ".*Host" "Xref"
159 "Content-Type" "Precedence"
160 "Status" "X-VM-.*")
161 "All fields that match this list will be hidden in MIME preview buffer.
162 Each elements are regexp of field-name. [tm-view.el]")
163
164 (defvar mime-viewer/ignored-field-regexp
165 (concat "^"
166 (apply (function regexp-or) mime-viewer/ignored-field-list)
167 ":"))
168
169 (defvar mime-viewer/visible-field-list
170 '("Dnas.*" "Message-Id")
171 "All fields that match this list will be displayed in MIME preview buffer.
172 Each elements are regexp of field-name. [tm-view.el]")
173
174 (defvar mime-viewer/visible-field-regexp
175 (concat "^"
176 (apply (function regexp-or) mime-viewer/visible-field-list)
177 ":"))
178
179 (defvar mime-viewer/redisplay nil)
180
181 (defvar mime-viewer/announcement-for-message/partial
182 (if (and (>= emacs-major-version 19) window-system)
183 "\
184 \[[ This is message/partial style split message. ]]
185 \[[ Please press `v' key in this buffer ]]
186 \[[ or click here by mouse button-2. ]]"
187 "\
188 \[[ This is message/partial style split message. ]]
189 \[[ Please press `v' key in this buffer. ]]"
190 ))
191
192
193 ;;; @@ predicate functions
194 ;;;
195
196 (defun mime-viewer/header-visible-p (rcnum cinfo &optional ctype)
197 (or (null rcnum)
198 (progn
199 (setq ctype
200 (mime::content-info/type
201 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo)
202 ))
203 (member ctype mime-viewer/childrens-header-showing-Content-Type-list)
204 )))
205
206 (defun mime-viewer/body-visible-p (rcnum cinfo &optional ctype)
207 (let (ccinfo)
208 (or ctype
209 (setq ctype
210 (mime::content-info/type
211 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
212 ))
213 )
214 (and (member ctype mime-viewer/default-showing-Content-Type-list)
215 (if (string-equal ctype "application/octet-stream")
216 (progn
217 (or ccinfo
218 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
219 )
220 (member (mime::content-info/encoding ccinfo)
221 '(nil "7bit" "8bit"))
222 )
223 t))
224 ))
225
226
227 ;;; @@ content button
228 ;;;
229
230 (defun mime-preview/insert-content-button
231 (rcnum cinfo ctype params subj encoding)
232 (save-restriction
233 (narrow-to-region (point)(point))
234 (let ((access-type (assoc "access-type" params))
235 (charset (assoc "charset" params))
236 (num (or (assoc-value "x-part-number" params)
237 (if (consp rcnum)
238 (mapconcat (function
239 (lambda (num)
240 (format "%s" (1+ num))
241 ))
242 (reverse rcnum) ".")
243 "0"))
244 ))
245 (cond (access-type
246 (let ((server (assoc "server" params)))
247 (setq access-type (cdr access-type))
248 (if server
249 (insert (format "[%s %s ([%s] %s)]\n" num subj
250 access-type (cdr server)))
251 (let ((site (assoc-value "site" params))
252 (dir (assoc-value "directory" params))
253 )
254 (insert (format "[%s %s ([%s] %s:%s)]\n" num subj
255 access-type site dir))
256 )))
257 )
258 (t
259 (insert (concat "[" num " " subj))
260 (let ((rest
261 (if (setq charset (cdr charset))
262 (if encoding
263 (format " <%s; %s (%s)>]\n"
264 ctype charset encoding)
265 (format " <%s; %s>]\n" ctype charset)
266 )
267 (format " <%s>]\n" ctype)
268 )))
269 (if (>= (+ (current-column)(length rest))(window-width))
270 (setq rest (concat "\n\t" rest))
271 )
272 (insert rest)
273 ))))
274 (tm:add-button (point-min)(1- (point-max))
275 (function mime-viewer/play-content))
276 ))
277
278 (defun mime-preview/default-content-button-function
279 (rcnum cinfo ctype params subj encoding)
280 (if (and (consp rcnum)
281 (not (member
282 ctype
283 mime-viewer/content-button-ignored-ctype-list)))
284 (mime-preview/insert-content-button
285 rcnum cinfo ctype params subj encoding)
286 ))
287
288 (defvar mime-preview/content-button-function
289 (function mime-preview/default-content-button-function))
290
291
292 ;;; @@ content header filter
293 ;;;
294
295 (defun mime-preview/cut-header ()
296 (goto-char (point-min))
297 (while (and
298 (re-search-forward mime-viewer/ignored-field-regexp nil t)
299 (let* ((beg (match-beginning 0))
300 (end (match-end 0))
301 (name (buffer-substring beg end))
302 )
303 (if (not (string-match mime-viewer/visible-field-regexp name))
304 (delete-region
305 beg
306 (save-excursion
307 (and
308 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
309 (match-beginning 0)
310 )))
311 )
312 t)))
313 )
314
315 (defun mime-viewer/default-content-header-filter ()
316 (mime-preview/cut-header)
317 (mime/decode-message-header)
318 )
319
320 (defvar mime-viewer/content-header-filter-alist nil)
321
322
323 ;;; @@ content filter
324 ;;;
325
326 (defvar mime-viewer/content-filter-alist
327 '(("text/enriched" . mime-preview/filter-for-text/enriched)
328 ("text/richtext" . mime-preview/filter-for-text/richtext)
329 (t . mime-preview/filter-for-text/plain)
330 ))
331
332
333 ;;; @@ content separator
334 ;;;
335
336 (defun mime-preview/default-content-separator (rcnum cinfo ctype params subj)
337 (if (and (not (mime-viewer/header-visible-p rcnum cinfo ctype))
338 (not (mime-viewer/body-visible-p rcnum cinfo ctype))
339 )
340 (progn
341 (goto-char (point-max))
342 (insert "\n")
343 )))
344
345
346 ;;; @@ buffer local variables
347 ;;;
348
349 ;; for XEmacs
350 (defvar mime::article/preview-buffer nil)
351 (defvar mime::article/code-converter nil)
352 (defvar mime::preview/article-buffer nil)
353
354 (make-variable-buffer-local 'mime::article/content-info)
355 (make-variable-buffer-local 'mime::article/preview-buffer)
356 (make-variable-buffer-local 'mime::article/code-converter)
357
358 (make-variable-buffer-local 'mime::preview/mother-buffer)
359 (make-variable-buffer-local 'mime::preview/content-list)
360 (make-variable-buffer-local 'mime::preview/article-buffer)
361 (make-variable-buffer-local 'mime::preview/original-major-mode)
362 (make-variable-buffer-local 'mime::preview/original-window-configuration)
363
364
365 ;;; @@ quitting method
366 ;;;
367
368 (defvar mime-viewer/quitting-method-alist
369 '((mime/show-message-mode
370 . mime-viewer/quitting-method-for-mime/show-message-mode)))
371
372 (defvar mime-viewer/over-to-previous-method-alist nil)
373 (defvar mime-viewer/over-to-next-method-alist nil)
374
375 (defvar mime-viewer/show-summary-method nil)
376
377
378 ;;; @@ following method
379 ;;;
380
381 (defvar mime-viewer/following-method-alist nil)
382
383
384 ;;; @@ X-Face
385 ;;;
386
387 ;; hack from Gnus 5.0.4.
388
389 (defvar mime-viewer/x-face-to-pbm-command
390 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
391
392 (defvar mime-viewer/x-face-command
393 (concat mime-viewer/x-face-to-pbm-command
394 " | xv -quit -")
395 "String to be executed to display an X-Face field.
396 The command will be executed in a sub-shell asynchronously.
397 The compressed face will be piped to this command.")
398
399 (defun mime-viewer/x-face-function ()
400 "Function to display X-Face field. You can redefine to customize."
401 ;; 1995/10/12 (c.f. tm-eng:130)
402 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
403 (save-restriction
404 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
405 ;; end
406 (goto-char (point-min))
407 (if (re-search-forward "^X-Face:[ \t]*" nil t)
408 (let ((beg (match-end 0))
409 (end (std11-field-end))
410 )
411 (call-process-region beg end "sh" nil 0 nil
412 "-c" mime-viewer/x-face-command)
413 ))))
414
415
416 ;;; @@ utility
417 ;;;
418
419 (defun mime-preview/get-original-major-mode ()
420 (if mime::preview/mother-buffer
421 (save-excursion
422 (set-buffer mime::preview/mother-buffer)
423 (mime-preview/get-original-major-mode)
424 )
425 mime::preview/original-major-mode))
426
427
428 ;;; @ data structures
429 ;;;
430
431 ;;; @@ preview-content-info
432 ;;;
433
434 (define-structure mime::preview-content-info
435 point-min point-max buffer content-info)
436
437
438 ;;; @ buffer setup
439 ;;;
440
441 (defun mime-viewer/setup-buffer (&optional ctl encoding ibuf obuf)
442 (if ibuf
443 (progn
444 (get-buffer ibuf)
445 (set-buffer ibuf)
446 ))
447 (or mime-viewer/redisplay
448 (setq mime::article/content-info (mime/parse-message ctl encoding))
449 )
450 (let ((ret (mime-viewer/make-preview-buffer obuf)))
451 (setq mime::article/preview-buffer (car ret))
452 ret))
453
454 (defun mime-viewer/make-preview-buffer (&optional obuf)
455 (let* ((cinfo mime::article/content-info)
456 (pcl (mime/flatten-content-info cinfo))
457 (dest (make-list (length pcl) nil))
458 (the-buf (current-buffer))
459 (mode major-mode)
460 )
461 (or obuf
462 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
463 (set-buffer (get-buffer-create obuf))
464 (setq buffer-read-only nil)
465 (widen)
466 (erase-buffer)
467 (setq mime::preview/article-buffer the-buf)
468 (setq mime::preview/original-major-mode mode)
469 (setq major-mode 'mime/viewer-mode)
470 (setq mode-name "MIME-View")
471 (let ((drest dest))
472 (while pcl
473 (setcar drest
474 (mime-preview/display-content (car pcl) cinfo the-buf obuf))
475 (setq pcl (cdr pcl)
476 drest (cdr drest))
477 ))
478 (set-buffer-modified-p nil)
479 (setq buffer-read-only t)
480 (set-buffer the-buf)
481 (list obuf dest)
482 ))
483
484 (defun mime-preview/display-content (content cinfo ibuf obuf)
485 (let* ((beg (mime::content-info/point-min content))
486 (end (mime::content-info/point-max content))
487 (ctype (mime::content-info/type content))
488 (params (mime::content-info/parameters content))
489 (encoding (mime::content-info/encoding content))
490 (rcnum (mime::content-info/rcnum content))
491 he e nb ne subj)
492 (set-buffer ibuf)
493 (goto-char beg)
494 (setq he (if (re-search-forward "^$" nil t)
495 (1+ (match-end 0))
496 end))
497 (if (> he end)
498 (setq he end)
499 )
500 (save-restriction
501 (narrow-to-region beg end)
502 (setq subj
503 (mime-eword/decode-string
504 (mime-article/get-subject params encoding)))
505 )
506 (set-buffer obuf)
507 (setq nb (point))
508 (narrow-to-region nb nb)
509 (funcall mime-preview/content-button-function
510 rcnum cinfo ctype params subj encoding)
511 (if (mime-viewer/header-visible-p rcnum cinfo ctype)
512 (mime-preview/display-header beg he)
513 )
514 (if (and (null rcnum)
515 (member
516 ctype mime-viewer/content-button-visible-ctype-list))
517 (save-excursion
518 (goto-char (point-max))
519 (mime-preview/insert-content-button
520 rcnum cinfo ctype params subj encoding)
521 ))
522 (cond ((mime-viewer/body-visible-p rcnum cinfo ctype)
523 (mime-preview/display-body he end
524 rcnum cinfo ctype params subj encoding)
525 )
526 ((equal ctype "message/partial")
527 (mime-preview/display-message/partial)
528 )
529 ((and (null rcnum)
530 (null (mime::content-info/children cinfo))
531 )
532 (goto-char (point-max))
533 (mime-preview/insert-content-button
534 rcnum cinfo ctype params subj encoding)
535 ))
536 (mime-preview/default-content-separator rcnum cinfo ctype params subj)
537 (prog1
538 (progn
539 (setq ne (point-max))
540 (widen)
541 (mime::preview-content-info/create nb (1- ne) ibuf content)
542 )
543 (goto-char ne)
544 )))
545
546 (defun mime-preview/display-header (beg end)
547 (save-restriction
548 (narrow-to-region (point)(point))
549 (insert-buffer-substring mime::preview/article-buffer beg end)
550 (let ((f (cdr (assq mime::preview/original-major-mode
551 mime-viewer/content-header-filter-alist))))
552 (if (functionp f)
553 (funcall f)
554 (mime-viewer/default-content-header-filter)
555 ))
556 (run-hooks 'mime-viewer/content-header-filter-hook)
557 ))
558
559 (defun mime-preview/display-body (beg end
560 rcnum cinfo ctype params subj encoding)
561 (save-restriction
562 (narrow-to-region (point-max)(point-max))
563 (insert-buffer-substring mime::preview/article-buffer beg end)
564 (let ((f (cdr (or (assoc ctype mime-viewer/content-filter-alist)
565 (assq t mime-viewer/content-filter-alist)))))
566 (and (functionp f)
567 (funcall f ctype params encoding)
568 )
569 )))
570
571 (defun mime-preview/display-message/partial ()
572 (save-restriction
573 (goto-char (point-max))
574 (if (not (search-backward "\n\n" nil t))
575 (insert "\n")
576 )
577 (let ((be (point-max)))
578 (narrow-to-region be be)
579 (insert mime-viewer/announcement-for-message/partial)
580 (tm:add-button (point-min)(point-max)
581 (function mime-viewer/play-content))
582 )))
583
584 (defun mime-article/get-uu-filename (param &optional encoding)
585 (if (member (or encoding
586 (cdr (assq 'encoding param))
587 )
588 mime-viewer/uuencode-encoding-name-list)
589 (save-excursion
590 (or (if (re-search-forward "^begin [0-9]+ " nil t)
591 (if (looking-at ".+$")
592 (buffer-substring (match-beginning 0)(match-end 0))
593 ))
594 ""))
595 ))
596
597 (defun mime-article/get-subject (param &optional encoding)
598 (or (std11-find-field-body '("Content-Description" "Subject"))
599 (let (ret)
600 (if (or (and (setq ret (mime/Content-Disposition))
601 (setq ret (assoc "filename" (cdr ret)))
602 )
603 (setq ret (assoc "name" param))
604 (setq ret (assoc "x-name" param))
605 )
606 (std11-strip-quoted-string (cdr ret))
607 ))
608 (mime-article/get-uu-filename param encoding)
609 ""))
610
611
612 ;;; @ content information
613 ;;;
614
615 (defun mime-article/point-content-number (p &optional cinfo)
616 (or cinfo
617 (setq cinfo mime::article/content-info)
618 )
619 (let ((b (mime::content-info/point-min cinfo))
620 (e (mime::content-info/point-max cinfo))
621 (c (mime::content-info/children cinfo))
622 )
623 (if (and (<= b p)(<= p e))
624 (or (let (co ret (sn 0))
625 (catch 'tag
626 (while c
627 (setq co (car c))
628 (setq ret (mime-article/point-content-number p co))
629 (cond ((eq ret t) (throw 'tag (list sn)))
630 (ret (throw 'tag (cons sn ret)))
631 )
632 (setq c (cdr c))
633 (setq sn (1+ sn))
634 )))
635 t))))
636
637 (defun mime-article/rcnum-to-cinfo (rcnum &optional cinfo)
638 (or cinfo
639 (setq cinfo mime::article/content-info)
640 )
641 (find-if (function
642 (lambda (ci)
643 (equal (mime::content-info/rcnum ci) rcnum)
644 ))
645 (mime/flatten-content-info cinfo)
646 ))
647
648 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
649 (or cinfo
650 (setq cinfo mime::article/content-info)
651 )
652 (if (eq cn t)
653 cinfo
654 (let ((sn (car cn)))
655 (if (null sn)
656 cinfo
657 (let ((rc (nth sn (mime::content-info/children cinfo))))
658 (if rc
659 (mime-article/cnum-to-cinfo (cdr cn) rc)
660 ))
661 ))))
662
663 (defun mime/flatten-content-info (&optional cinfo)
664 (or cinfo
665 (setq cinfo mime::article/content-info)
666 )
667 (let ((dest (list cinfo))
668 (rcl (mime::content-info/children cinfo))
669 )
670 (while rcl
671 (setq dest (nconc dest (mime/flatten-content-info (car rcl))))
672 (setq rcl (cdr rcl))
673 )
674 dest))
675
676 (defun mime-preview/point-pcinfo (p &optional pcl)
677 (or pcl
678 (setq pcl mime::preview/content-list)
679 )
680 (catch 'tag
681 (let ((r pcl) cell)
682 (while r
683 (setq cell (car r))
684 (if (and (<= (mime::preview-content-info/point-min cell) p)
685 (<= p (mime::preview-content-info/point-max cell))
686 )
687 (throw 'tag cell)
688 )
689 (setq r (cdr r))
690 ))
691 (car (last pcl))
692 ))
693
694
695 ;;; @ MIME viewer mode
696 ;;;
697
698 (defconst mime-viewer/menu-title "MIME-View")
699 (defconst mime-viewer/menu-list
700 '((up "Move to upper content" mime-viewer/up-content)
701 (previous "Move to previous content" mime-viewer/previous-content)
702 (next "Move to next content" mime-viewer/next-content)
703 (scroll-down "Scroll to previous content" mime-viewer/scroll-down-content)
704 (scroll-up "Scroll to next content" mime-viewer/scroll-up-content)
705 (play "Play Content" mime-viewer/play-content)
706 (extract "Extract Content" mime-viewer/extract-content)
707 (print "Print" mime-viewer/print-content)
708 (x-face "Show X Face" mime-viewer/display-x-face)
709 )
710 "Menu for MIME Viewer")
711
712 (if running-xemacs
713 (progn
714 (defvar mime-viewer/xemacs-popup-menu
715 (cons mime-viewer/menu-title
716 (mapcar (function
717 (lambda (item)
718 (vector (nth 1 item)(nth 2 item) t)
719 ))
720 mime-viewer/menu-list)))
721 (defun mime-viewer/xemacs-popup-menu (event)
722 "Popup the menu in the MIME Viewer buffer"
723 (interactive "e")
724 (select-window (event-window event))
725 (set-buffer (event-buffer event))
726 (popup-menu 'mime-viewer/xemacs-popup-menu))
727 ))
728
729 (defun mime-viewer/define-keymap (&optional mother)
730 (let ((mime/viewer-mode-map (if mother
731 (copy-keymap mother)
732 (make-keymap))))
733 (suppress-keymap mime/viewer-mode-map)
734 (define-key mime/viewer-mode-map
735 "u" (function mime-viewer/up-content))
736 (define-key mime/viewer-mode-map
737 "p" (function mime-viewer/previous-content))
738 (define-key mime/viewer-mode-map
739 "n" (function mime-viewer/next-content))
740 (define-key mime/viewer-mode-map
741 " " (function mime-viewer/scroll-up-content))
742 (define-key mime/viewer-mode-map
743 "\M- " (function mime-viewer/scroll-down-content))
744 (define-key mime/viewer-mode-map
745 "\177" (function mime-viewer/scroll-down-content))
746 (define-key mime/viewer-mode-map
747 "\C-m" (function mime-viewer/next-line-content))
748 (define-key mime/viewer-mode-map
749 "\C-\M-m" (function mime-viewer/previous-line-content))
750 (define-key mime/viewer-mode-map
751 "v" (function mime-viewer/play-content))
752 (define-key mime/viewer-mode-map
753 "e" (function mime-viewer/extract-content))
754 (define-key mime/viewer-mode-map
755 "\C-c\C-p" (function mime-viewer/print-content))
756 (define-key mime/viewer-mode-map
757 "x" (function mime-viewer/display-x-face))
758 (define-key mime/viewer-mode-map
759 "a" (function mime-viewer/follow-content))
760 (define-key mime/viewer-mode-map
761 "q" (function mime-viewer/quit))
762 (define-key mime/viewer-mode-map
763 "h" (function mime-viewer/show-summary))
764 (define-key mime/viewer-mode-map
765 "\C-c\C-x" (function mime-viewer/kill-buffer))
766 (define-key mime/viewer-mode-map
767 "<" (function beginning-of-buffer))
768 (define-key mime/viewer-mode-map
769 ">" (function end-of-buffer))
770 (define-key mime/viewer-mode-map
771 "?" (function describe-mode))
772 (if mouse-button-2
773 (define-key mime/viewer-mode-map
774 mouse-button-2 (function tm:button-dispatcher))
775 )
776 (cond (running-xemacs
777 (define-key mime/viewer-mode-map
778 mouse-button-3 (function mime-viewer/xemacs-popup-menu))
779 )
780 ((>= emacs-major-version 19)
781 (define-key mime/viewer-mode-map [menu-bar mime-view]
782 (cons mime-viewer/menu-title
783 (make-sparse-keymap mime-viewer/menu-title)))
784 (mapcar (function
785 (lambda (item)
786 (define-key mime/viewer-mode-map
787 (vector 'menu-bar 'mime-view (car item))
788 (cons (nth 1 item)(nth 2 item))
789 )
790 ))
791 (reverse mime-viewer/menu-list)
792 )
793 ))
794 (use-local-map mime/viewer-mode-map)
795 (run-hooks 'mime-viewer/define-keymap-hook)
796 ))
797
798 (defun mime/viewer-mode (&optional mother ctl encoding ibuf obuf
799 mother-keymap)
800 "Major mode for viewing MIME message.
801
802 Here is a list of the standard keys for mime/viewer-mode.
803
804 key feature
805 --- -------
806
807 u Move to upper content
808 p Move to previous content
809 n Move to next content
810 SPC Scroll up or move to next content
811 M-SPC Scroll down or move to previous content
812 DEL Scroll down or move to previous content
813 RET Move to next line
814 M-RET Move to previous line
815 v Decode current content as `play mode'
816 e Decode current content as `extract mode'
817 C-c C-p Decode current content as `print mode'
818 a Followup to current content.
819 x Display X-Face
820 q Quit
821 button-2 Move to point under the mouse cursor
822 and decode current content as `play mode'
823 "
824 (interactive)
825 (let ((buf (get-buffer mime/output-buffer-name)))
826 (if buf
827 (save-excursion
828 (set-buffer buf)
829 (erase-buffer)
830 )))
831 (let ((ret (mime-viewer/setup-buffer ctl encoding ibuf obuf))
832 (win-conf (current-window-configuration))
833 )
834 (prog1
835 (switch-to-buffer (car ret))
836 (setq mime::preview/original-window-configuration win-conf)
837 (if mother
838 (progn
839 (setq mime::preview/mother-buffer mother)
840 ))
841 (mime-viewer/define-keymap mother-keymap)
842 (setq mime::preview/content-list (nth 1 ret))
843 (goto-char
844 (let ((ce (mime::preview-content-info/point-max
845 (car mime::preview/content-list)
846 ))
847 e)
848 (goto-char (point-min))
849 (search-forward "\n\n" nil t)
850 (setq e (match-end 0))
851 (if (<= e ce)
852 e
853 ce)))
854 (run-hooks 'mime/viewer-mode-hook)
855 )))
856
857 (defun mime-preview/point-content-number (point)
858 (save-window-excursion
859 (let ((pc (mime-preview/point-pcinfo (point)))
860 cinfo)
861 (switch-to-buffer (mime::preview-content-info/buffer pc))
862 (setq cinfo (mime::preview-content-info/content-info pc))
863 (mime-article/point-content-number (mime::content-info/point-min cinfo))
864 )))
865
866 (defun mime-preview/cinfo-to-pcinfo (cinfo)
867 (let ((rpcl mime::preview/content-list) cell)
868 (catch 'tag
869 (while rpcl
870 (setq cell (car rpcl))
871 (if (eq cinfo (mime::preview-content-info/content-info cell))
872 (throw 'tag cell)
873 )
874 (setq rpcl (cdr rpcl))
875 ))))
876
877 (autoload 'mime-preview/decode-content "tm-play")
878
879 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
880
881 (defun mime-viewer/play-content ()
882 (interactive)
883 (let ((mime-viewer/decoding-mode "play"))
884 (mime-preview/decode-content)
885 ))
886
887 (defun mime-viewer/extract-content ()
888 (interactive)
889 (let ((mime-viewer/decoding-mode "extract"))
890 (mime-preview/decode-content)
891 ))
892
893 (defun mime-viewer/print-content ()
894 (interactive)
895 (let ((mime-viewer/decoding-mode "print"))
896 (mime-preview/decode-content)
897 ))
898
899 (defun mime-viewer/follow-content ()
900 (interactive)
901 (let ((root-cinfo
902 (mime::preview-content-info/content-info
903 (car mime::preview/content-list)))
904 pc p-beg p-end cinfo rcnum)
905 (let ((rest mime::preview/content-list)
906 b e cell len rc)
907 (if (catch 'tag
908 (while (setq cell (car rest))
909 (setq b (mime::preview-content-info/point-min cell)
910 e (mime::preview-content-info/point-max cell))
911 (setq rest (cdr rest))
912 (if (and (<= b (point))(<= (point) e))
913 (throw 'tag cell)
914 )
915 ))
916 (progn
917 (setq pc cell
918 cinfo (mime::preview-content-info/content-info pc)
919 rcnum (mime::content-info/rcnum cinfo))
920 (setq len (length rcnum))
921 (setq p-beg (mime::preview-content-info/point-min pc)
922 p-end (mime::preview-content-info/point-max pc))
923 (while (and (setq cell (car rest))
924 (progn
925 (setq rc
926 (mime::content-info/rcnum
927 (mime::preview-content-info/content-info
928 cell)))
929 (equal rcnum
930 (nthcdr (- (length rc) len) rc))
931 ))
932 (setq p-end (mime::preview-content-info/point-max cell))
933 (setq rest (cdr rest))
934 ))))
935 (if pc
936 (let* ((mode (mime-preview/get-original-major-mode))
937 (new-name (format "%s-%s" (buffer-name) (reverse rcnum)))
938 new-buf
939 (the-buf (current-buffer))
940 (a-buf mime::preview/article-buffer)
941 (hb (mime::content-info/point-min cinfo))
942 (he (mime::content-info/point-max cinfo))
943 fields from to cc reply-to subj mid f)
944 (save-excursion
945 (set-buffer (setq new-buf (get-buffer-create new-name)))
946 (erase-buffer)
947 (insert-buffer-substring the-buf p-beg p-end)
948 (goto-char (point-min))
949 (if (mime-viewer/header-visible-p rcnum root-cinfo)
950 (delete-region (goto-char (point-min))
951 (if (re-search-forward "^$" nil t)
952 (match-end 0)
953 (point-min)))
954 )
955 (goto-char (point-min))
956 (insert "\n")
957 (goto-char (point-min))
958 (let ((rcnum (mime::content-info/rcnum cinfo)) ci str)
959 (while (progn
960 (setq str
961 (save-excursion
962 (set-buffer a-buf)
963 (setq ci (mime-article/rcnum-to-cinfo rcnum))
964 (save-restriction
965 (narrow-to-region
966 (mime::content-info/point-min ci)
967 (mime::content-info/point-max ci)
968 )
969 (std11-header-string-except
970 (concat "^"
971 (apply (function regexp-or) fields)
972 ":") ""))))
973 (if (string-equal (mime::content-info/type ci)
974 "message/rfc822")
975 nil
976 (if str
977 (insert str)
978 )
979 rcnum))
980 (setq fields (std11-collect-field-names)
981 rcnum (cdr rcnum))
982 )
983 )
984 (mime/decode-message-header)
985 )
986 (funcall (cdr (assq mode mime-viewer/following-method-alist))
987 new-buf)
988 ))))
989
990 (defun mime-viewer/display-x-face ()
991 (interactive)
992 (save-window-excursion
993 (set-buffer mime::preview/article-buffer)
994 (mime-viewer/x-face-function)
995 ))
996
997 (defun mime-viewer/up-content ()
998 (interactive)
999 (let* ((pc (mime-preview/point-pcinfo (point)))
1000 (cinfo (mime::preview-content-info/content-info pc))
1001 (rcnum (mime::content-info/rcnum cinfo))
1002 )
1003 (if rcnum
1004 (let ((r (save-excursion
1005 (set-buffer (mime::preview-content-info/buffer pc))
1006 (mime-article/rcnum-to-cinfo (cdr rcnum))
1007 ))
1008 (rpcl mime::preview/content-list)
1009 cell)
1010 (while (and
1011 (setq cell (car rpcl))
1012 (not (eq r (mime::preview-content-info/content-info cell)))
1013 )
1014 (setq rpcl (cdr rpcl))
1015 )
1016 (goto-char (mime::preview-content-info/point-min cell))
1017 )
1018 (mime-viewer/quit)
1019 )))
1020
1021 (defun mime-viewer/previous-content ()
1022 (interactive)
1023 (let* ((pcl mime::preview/content-list)
1024 (p (point))
1025 (i (- (length pcl) 1))
1026 beg)
1027 (catch 'tag
1028 (while (>= i 0)
1029 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1030 (if (> p beg)
1031 (throw 'tag (goto-char beg))
1032 )
1033 (setq i (- i 1))
1034 )
1035 (let ((f (assq mime::preview/original-major-mode
1036 mime-viewer/over-to-previous-method-alist)))
1037 (if f
1038 (funcall (cdr f))
1039 ))
1040 )
1041 ))
1042
1043 (defun mime-viewer/next-content ()
1044 (interactive)
1045 (let ((pcl mime::preview/content-list)
1046 (p (point))
1047 beg)
1048 (catch 'tag
1049 (while pcl
1050 (setq beg (mime::preview-content-info/point-min (car pcl)))
1051 (if (< p beg)
1052 (throw 'tag (goto-char beg))
1053 )
1054 (setq pcl (cdr pcl))
1055 )
1056 (let ((f (assq mime::preview/original-major-mode
1057 mime-viewer/over-to-next-method-alist)))
1058 (if f
1059 (funcall (cdr f))
1060 ))
1061 )
1062 ))
1063
1064 (defun mime-viewer/scroll-up-content (&optional h)
1065 (interactive)
1066 (or h
1067 (setq h (- (window-height) 1))
1068 )
1069 (if (= (point) (point-max))
1070 (let ((f (assq mime::preview/original-major-mode
1071 mime-viewer/over-to-next-method-alist)))
1072 (if f
1073 (funcall (cdr f))
1074 ))
1075 (let ((pcl mime::preview/content-list)
1076 (p (point))
1077 np beg)
1078 (setq np
1079 (or (catch 'tag
1080 (while pcl
1081 (setq beg (mime::preview-content-info/point-min (car pcl)))
1082 (if (< p beg)
1083 (throw 'tag beg)
1084 )
1085 (setq pcl (cdr pcl))
1086 ))
1087 (point-max)))
1088 (forward-line h)
1089 (if (> (point) np)
1090 (goto-char np)
1091 )
1092 ;;(show-subtree)
1093 ))
1094 )
1095
1096 (defun mime-viewer/scroll-down-content (&optional h)
1097 (interactive)
1098 (or h
1099 (setq h (- (window-height) 1))
1100 )
1101 (if (= (point) (point-min))
1102 (let ((f (assq mime::preview/original-major-mode
1103 mime-viewer/over-to-previous-method-alist)))
1104 (if f
1105 (funcall (cdr f))
1106 ))
1107 (let ((pcl mime::preview/content-list)
1108 (p (point))
1109 pp beg)
1110 (setq pp
1111 (or (let ((i (- (length pcl) 1)))
1112 (catch 'tag
1113 (while (> i 0)
1114 (setq beg (mime::preview-content-info/point-min
1115 (nth i pcl)))
1116 (if (> p beg)
1117 (throw 'tag beg)
1118 )
1119 (setq i (- i 1))
1120 )))
1121 (point-min)))
1122 (forward-line (- h))
1123 (if (< (point) pp)
1124 (goto-char pp)
1125 )))
1126 )
1127
1128 (defun mime-viewer/next-line-content ()
1129 (interactive)
1130 (mime-viewer/scroll-up-content 1)
1131 )
1132
1133 (defun mime-viewer/previous-line-content ()
1134 (interactive)
1135 (mime-viewer/scroll-down-content 1)
1136 )
1137
1138 (defun mime-viewer/quit ()
1139 (interactive)
1140 (let ((r (save-excursion
1141 (set-buffer (mime::preview-content-info/buffer
1142 (mime-preview/point-pcinfo (point))))
1143 (assq major-mode mime-viewer/quitting-method-alist)
1144 )))
1145 (if r
1146 (funcall (cdr r))
1147 )))
1148
1149 (defun mime-viewer/show-summary ()
1150 (interactive)
1151 (let ((r (save-excursion
1152 (set-buffer
1153 (mime::preview-content-info/buffer
1154 (mime-preview/point-pcinfo (point)))
1155 )
1156 (assq major-mode mime-viewer/show-summary-method)
1157 )))
1158 (if r
1159 (funcall (cdr r))
1160 )))
1161
1162 (defun mime-viewer/kill-buffer ()
1163 (interactive)
1164 (kill-buffer (current-buffer))
1165 )
1166
1167
1168 ;;; @ end
1169 ;;;
1170
1171 (provide 'tm-view)
1172
1173 (run-hooks 'tm-view-load-hook)
1174
1175 ;;; tm-view.el ends here