2 ;;; tm-view.el --- interactive MIME viewer for GNU Emacs
4 ;;; Copyright (C) 1995 Free Software Foundation, Inc.
5 ;;; Copyright (C) 1994,1995 MORIOKA Tomohiko
7 ;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
8 ;;; modified by Steven L. Baur <steve@miranova.com>
9 ;;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
10 ;;; Created: 1994/7/13 (1994/8/31 obsolete tm-body.el)
11 ;;; Version: $Revision: 7.33 $
12 ;;; Keywords: mail, news, MIME, multimedia
14 ;;; This file is part of tm (Tools for MIME).
16 ;;; This program is free software; you can redistribute it and/or
17 ;;; modify it under the terms of the GNU General Public License as
18 ;;; published by the Free Software Foundation; either version 2, or
19 ;;; (at your option) any later version.
21 ;;; This program is distributed in the hope that it will be useful,
22 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 ;;; General Public License for more details.
26 ;;; You should have received a copy of the GNU General Public License
27 ;;; along with This program. If not, write to the Free Software
28 ;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
46 (defconst mime-viewer/RCS-ID
47 "$Id: tm-view.el,v 7.33 1995/12/13 05:46:06 morioka Exp $")
49 (defconst mime-viewer/version (get-version-string mime-viewer/RCS-ID))
50 (defconst mime/viewer-version mime-viewer/version)
56 (defvar mime/content-decoding-condition
57 '(((type . "text/plain")
58 (method "tm-plain" nil 'file 'type 'encoding 'mode 'name))
60 (method "tm-html" nil 'file 'type 'encoding 'mode 'name)
62 ((type . "text/x-rot13-47")
63 (method . mime-article/decode-caesar))
65 ((type . "audio/basic")
66 (method "tm-au" nil 'file 'type 'encoding 'mode 'name))
69 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
70 ((type . "image/jpeg")
71 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
72 ((type . "image/tiff")
73 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
74 ((type . "image/x-tiff")
75 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
76 ((type . "image/x-xbm")
77 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
78 ((type . "image/x-pic")
79 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
81 ((type . "video/mpeg")
82 (method "tm-mpeg" nil 'file 'type 'encoding 'mode 'name))
84 ((type . "application/octet-stream")
85 (method "tm-file" nil 'file 'type 'encoding 'mode 'name))
87 ;;((type . "message/external-body")
88 ;; (method "xterm" nil
89 ;; "-e" "showexternal"
90 ;; 'file '"access-type" '"name" '"site" '"directory"))
91 ((type . "message/rfc822")
92 (method . mime-article/view-message/rfc822))
93 ((type . "message/partial")
94 (method . mime-article/decode-message/partial))
97 "-m" "tm" "-x" "-d" "-z" "-e" 'file)(mode . "play"))
98 ((method "tm-file" nil 'file 'type 'encoding 'mode 'name)
102 (defvar mime-viewer/childrens-header-showing-Content-Type-list
103 '("message/rfc822" "message/news"))
105 (defvar mime-viewer/default-showing-Content-Type-list
106 '("text/plain" "text/richtext" "text/enriched"
107 "text/x-latex" "application/x-latex"
108 "application/octet-stream" nil
110 "application/x-selection" "application/x-comment"))
112 (defvar mime-viewer/content-subject-omitting-Content-Type-list
113 '("application/x-selection"))
115 (defvar mime-viewer/content-subject-showing-Content-Type-list
116 '("application/pgp"))
118 (defvar mime-viewer/uuencode-encoding-name-list '("x-uue" "x-uuencode"))
120 (defvar mime-viewer/ignored-field-list
121 '(".*Received" ".*Path" ".*Id"
122 "Replied" "Errors-To"
123 "Lines" "Sender" "Nntp-Posting-Host"
124 "Content-Type" "Precedence" "X-Face"
126 "All fields that match this list will be hidden in MIME preview buffer.
127 Each elements are regexp of field-name. [tm-view.el]")
129 (defvar mime-viewer/ignored-field-regexp
131 (apply (function regexp-or) mime-viewer/ignored-field-list)
134 (defvar mime-viewer/visible-field-list
136 "All fields that match this list will be displayed in MIME preview buffer.
137 Each elements are regexp of field-name. [tm-view.el]")
139 (defvar mime-viewer/visible-field-regexp
141 (apply (function regexp-or) mime-viewer/visible-field-list)
145 (defvar mime-viewer/announcement-for-message/partial
146 (if (and (>= emacs-major-version 19) window-system)
148 \[[ This is message/partial style split message. ]]
149 \[[ Please press `v' key in this buffer ]]
150 \[[ or click here by mouse button-2. ]]"
152 \[[ This is message/partial style split message. ]]
153 \[[ Please press `v' key in this buffer. ]]"
157 ;;; @@ predicate functions
160 (defun mime-viewer/header-visible-p (rcnum cinfo &optional ctype)
164 (mime::content-info/type
165 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo)
167 (member ctype mime-viewer/childrens-header-showing-Content-Type-list)
170 (defun mime-viewer/body-visible-p (rcnum cinfo &optional ctype)
174 (mime::content-info/type
175 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
178 (and (member ctype mime-viewer/default-showing-Content-Type-list)
179 (if (string-equal ctype "application/octet-stream")
182 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
184 (member (mime::content-info/encoding ccinfo)
185 '(nil "7bit" "8bit"))
191 ;;; @@ content subject
194 (defun mime-viewer/insert-content-subject
195 (rcnum cinfo ctype params subj)
197 (narrow-to-region (point)(point))
199 (let ((access-type (assoc "access-type" params))
200 (num (or (assoc-value "x-part-number" params)
204 (format "%s" (1+ num))
210 (let ((server (assoc "server" params)))
211 (setq access-type (cdr access-type))
213 (format "[%s %s ([%s] %s)]\n" num subj
214 access-type (cdr server))
215 (let ((site (assoc-value "site" params))
216 (dir (assoc-value "directory" params))
218 (format "[%s %s ([%s] %s:%s)]\n" num subj
219 access-type site dir)
221 (format "[%s %s (%s)]\n" num subj ctype)
223 (tm:add-button (point-min)(1- (point-max))
224 (function mime-viewer/play-content))
227 (defun mime-viewer/default-content-subject-function
228 (rcnum cinfo ctype params subj)
229 (if (and (consp rcnum)
232 mime-viewer/content-subject-omitting-Content-Type-list)))
233 (mime-viewer/insert-content-subject
234 rcnum cinfo ctype params subj)
237 (defvar mime-viewer/content-subject-function
238 (function mime-viewer/default-content-subject-function))
241 ;;; @@ content header filter
244 (defun mime-preview/cut-header ()
245 (goto-char (point-min))
247 (re-search-forward mime-viewer/ignored-field-regexp nil t)
248 (let* ((beg (match-beginning 0))
250 (name (buffer-substring beg end))
252 (if (not (string-match mime-viewer/visible-field-regexp name))
257 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
264 (defun mime-viewer/default-content-header-filter ()
265 (mime-preview/cut-header)
266 (mime/decode-message-header)
269 (defvar mime-viewer/content-header-filter-alist nil)
272 ;;; @@ content filter
275 (defvar mime-viewer/content-filter-alist
276 '(("text/plain" . mime-viewer/filter-text/plain)
277 ("application/pgp" . mime-viewer/filter-text/plain)
278 (nil . mime-viewer/filter-text/plain)))
280 (defun mime-viewer/default-content-filter (rcnum cinfo ctype params subj)
284 ;;; @@ content separator
287 (defun mime-viewer/default-content-separator (rcnum cinfo ctype params subj)
288 (if (and (not (mime-viewer/header-visible-p rcnum cinfo ctype))
289 (not (mime-viewer/body-visible-p rcnum cinfo ctype))
292 (goto-char (point-max))
297 ;;; @@ buffer local variables
301 (defvar mime::article/preview-buffer nil)
302 (defvar mime::article/code-converter nil)
304 (make-variable-buffer-local 'mime::article/content-info)
305 (make-variable-buffer-local 'mime::article/preview-buffer)
306 (make-variable-buffer-local 'mime::article/code-converter)
308 (make-variable-buffer-local 'mime::preview/mother-buffer)
309 (make-variable-buffer-local 'mime::preview/content-list)
310 (make-variable-buffer-local 'mime::preview/article-buffer)
311 (make-variable-buffer-local 'mime::preview/original-major-mode)
312 (make-variable-buffer-local 'mime::preview/original-window-configuration)
315 ;;; @@ quitting method
318 (defvar mime-viewer/quitting-method-alist
319 '((mime/show-message-mode
320 . mime-viewer/quitting-method-for-mime/show-message-mode)))
322 (defvar mime-viewer/over-to-previous-method-alist nil)
323 (defvar mime-viewer/over-to-next-method-alist nil)
329 ;; hack from Gnus 5.0.4.
331 (defvar mime-viewer/x-face-command
332 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
333 "String to be executed to display an X-Face field.
334 The command will be executed in a sub-shell asynchronously.
335 The compressed face will be piped to this command.")
337 (defun mime-viewer/x-face-function ()
338 "Function to display X-Face field. You can redefine to customize."
339 ;; 1995/10/12 (c.f. tm-eng:130)
340 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
342 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
344 (goto-char (point-min))
345 (if (re-search-forward "^X-Face:[ \t]*" nil t)
346 (let ((beg (match-end 0))
347 (end (rfc822/field-end))
349 (call-process-region beg end "sh" nil 0 nil
350 "-c" mime-viewer/x-face-command)
354 ;;; @ data structures
357 ;;; @@ preview-content-info
360 (define-structure mime::preview-content-info
361 point-min point-max buffer content-info)
367 (defun mime-viewer/setup-buffer (&optional ctl encoding ibuf obuf)
373 (setq mime::article/content-info (mime/parse-message ctl encoding))
374 (let ((ret (mime-viewer/make-preview-buffer obuf)))
375 (setq mime::article/preview-buffer (car ret))
378 (defun mime-viewer/make-preview-buffer (&optional obuf)
379 (let ((cinfo mime::article/content-info)
380 (the-buf (current-buffer))
384 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*"))
386 (setq pcl (mime/flatten-content-info cinfo))
387 (let ((bf (get-buffer obuf)))
391 (setq buffer-read-only nil)
394 (setq bf (get-buffer-create obuf))
397 (setq mime::preview/article-buffer the-buf)
398 (setq mime::preview/original-major-mode mode)
399 (setq major-mode 'mime/viewer-mode)
400 (setq mode-name "MIME-View")
405 (mime-viewer/display-content content cinfo the-buf obuf)
408 (set-buffer-modified-p nil)
409 (setq buffer-read-only t)
414 (defun mime-viewer/display-content (content cinfo ibuf obuf)
415 (let* ((beg (mime::content-info/point-min content))
416 (end (mime::content-info/point-max content))
417 (ctype (mime::content-info/type content))
418 (params (mime::content-info/parameters content))
419 (encoding (mime::content-info/encoding content))
420 (rcnum (mime::content-info/rcnum content))
424 (setq he (if (re-search-forward "^$" nil t)
431 (narrow-to-region beg end)
433 (mime-eword/decode-string
434 (mime-viewer/get-subject params encoding)))
438 (narrow-to-region nb nb)
439 (funcall mime-viewer/content-subject-function
440 rcnum cinfo ctype params subj)
442 (if (mime-viewer/header-visible-p rcnum cinfo ctype)
443 (mime-viewer/display-header beg he obuf)
445 (if (and (null rcnum)
447 ctype mime-viewer/content-subject-showing-Content-Type-list))
450 (goto-char (point-max))
451 (mime-viewer/insert-content-subject rcnum cinfo ctype params subj)
453 (cond ((mime-viewer/body-visible-p rcnum cinfo ctype)
454 (mime-viewer/display-body he end obuf
455 rcnum cinfo ctype params subj encoding)
457 ((equal ctype "message/partial")
458 (mime-viewer/display-message/partial obuf)
461 (null (mime::content-info/children cinfo))
464 (goto-char (point-max))
465 (mime-viewer/insert-content-subject rcnum cinfo ctype params subj)
467 (t (set-buffer obuf))
469 (mime-viewer/default-content-separator rcnum cinfo ctype params subj)
472 (setq ne (point-max))
474 (mime::preview-content-info/create nb (1- ne) ibuf content)
479 (defun mime-viewer/display-header (beg end obuf)
480 (let ((str (buffer-substring beg end))
481 (f (assq major-mode mime-viewer/content-header-filter-alist))
486 (narrow-to-region (point)(point))
488 (if (and f (setq f (cdr f)))
490 (mime-viewer/default-content-header-filter)
492 (run-hooks 'mime-viewer/content-header-filter-hook)
495 (defun mime-viewer/display-body (beg end obuf
496 rcnum cinfo ctype params subj encoding)
497 (let ((str (buffer-substring beg end))
501 (setq be (point-max))
502 (narrow-to-region be be)
504 (let ((f (assoc-value ctype mime-viewer/content-filter-alist)))
505 (if (and f (fboundp f))
506 (funcall f ctype params encoding)
507 (mime-viewer/default-content-filter rcnum cinfo ctype params subj)
511 (defun mime-viewer/display-message/partial (obuf)
514 (goto-char (point-max))
515 (if (not (search-backward "\n\n" nil t))
518 (let ((be (point-max)))
519 (narrow-to-region be be)
520 (insert mime-viewer/announcement-for-message/partial)
521 (tm:add-button (point-min)(point-max)
522 (function mime-viewer/play-content))
525 (defun mime-viewer/get-subject (param &optional encoding)
526 (if (member (or encoding
527 (cdr (assq 'encoding param))
529 mime-viewer/uuencode-encoding-name-list)
531 (or (if (re-search-forward "^begin [0-9]+ " nil t)
532 (if (looking-at ".+$")
533 (buffer-substring (match-beginning 0)(match-end 0))
537 (or (and (setq ret (assoc "name" param))
538 (rfc822/strip-quoted-string (cdr ret))
540 (and (setq ret (assoc "x-name" param))
541 (rfc822/strip-quoted-string (cdr ret))
546 (goto-char (point-min))
547 (narrow-to-region (point-min)
548 (or (and (search-forward "\n\n" nil t)
553 (rfc822/get-field-body "Content-Description")
554 (rfc822/get-field-body "Subject")
560 ;;; @ content information
563 (defun mime-article/point-content-number (p &optional cinfo)
565 (setq cinfo mime::article/content-info)
567 (let ((b (mime::content-info/point-min cinfo))
568 (e (mime::content-info/point-max cinfo))
569 (c (mime::content-info/children cinfo))
571 (if (and (<= b p)(<= p e))
572 (or (let (co ret (sn 0))
576 (setq ret (mime-article/point-content-number p co))
577 (cond ((eq ret t) (throw 'tag (list sn)))
578 (ret (throw 'tag (cons sn ret)))
585 (defun mime-article/rcnum-to-cinfo (rcnum &optional cinfo)
587 (setq cinfo mime::article/content-info)
592 (equal (mime::content-info/rcnum ci) rcnum)
594 (mime/flatten-content-info cinfo)
597 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
599 (setq cinfo mime::article/content-info)
606 (let ((rc (nth sn (mime::content-info/children cinfo))))
608 (mime-article/cnum-to-cinfo (cdr cn) rc)
612 (defun mime/flatten-content-info (&optional cinfo)
614 (setq cinfo mime::article/content-info)
616 (let ((dest (list cinfo))
617 (rcl (mime::content-info/children cinfo))
620 (setq dest (nconc dest (mime/flatten-content-info (car rcl))))
625 (defun mime-preview/point-pcinfo (p &optional pcl)
627 (setq pcl mime::preview/content-list)
633 (if (and (<= (mime::preview-content-info/point-min cell) p)
634 (<= p (mime::preview-content-info/point-max cell))
647 (defvar mime-viewer/code-converter-alist
648 '((mime/show-message-mode . mime/code-convert-region-to-emacs))
651 (defun mime-viewer/default-code-convert-region
652 (beg end charset &optional encoding)
653 (if (member encoding '("quoted-printable" "base64"))
654 (mime/code-convert-region-to-emacs beg (point-max) charset)
657 (defun mime-preview/decode-text-region (beg end charset encoding)
658 (mime/decode-region encoding beg end)
659 (let* ((mode mime::preview/original-major-mode)
660 (m (or (save-excursion
661 (set-buffer mime::preview/article-buffer)
662 mime::article/code-converter)
663 (cdr (assq mode mime-viewer/code-converter-alist))
666 (if (and m (fboundp m))
667 (funcall m beg (point-max) charset encoding)
668 (mime-viewer/default-code-convert-region
669 beg (point-max) charset encoding)
672 (defun mime-viewer/filter-text/plain (ctype params encoding)
673 (let ((charset (cdr (assoc "charset" params)))
674 (beg (point-min)) (end (point-max))
676 (mime-preview/decode-text-region beg end charset encoding)
678 (goto-char (point-max))
679 (if (not (eq (char-after (1- (point))) ?\n))
682 (if browse-url-browser-function
684 (goto-char (point-min))
685 (while (re-search-forward tm:URL-regexp nil t)
686 (tm:add-button (match-beginning 0)(match-end 0)
687 (function tm:browse-url))
689 (run-hooks 'mime-viewer/plain-text-preview-hook)
693 ;;; @ MIME viewer mode
696 (defvar mime/viewer-mode-map nil)
697 (if (null mime/viewer-mode-map)
699 (setq mime/viewer-mode-map (make-keymap))
700 (suppress-keymap mime/viewer-mode-map)
701 (define-key mime/viewer-mode-map
702 "u" (function mime-viewer/up-content))
703 (define-key mime/viewer-mode-map
704 "p" (function mime-viewer/previous-content))
705 (define-key mime/viewer-mode-map
706 "n" (function mime-viewer/next-content))
707 (define-key mime/viewer-mode-map
708 " " (function mime-viewer/scroll-up-content))
709 (define-key mime/viewer-mode-map
710 "\M- " (function mime-viewer/scroll-down-content))
711 (define-key mime/viewer-mode-map
712 "\177" (function mime-viewer/scroll-down-content))
713 (define-key mime/viewer-mode-map
714 "\C-m" (function mime-viewer/next-line-content))
715 (define-key mime/viewer-mode-map
716 "\C-\M-m" (function mime-viewer/previous-line-content))
717 (define-key mime/viewer-mode-map
718 "v" (function mime-viewer/play-content))
719 (define-key mime/viewer-mode-map
720 "e" (function mime-viewer/extract-content))
721 (define-key mime/viewer-mode-map
722 "\C-c\C-p" (function mime-viewer/print-content))
723 (define-key mime/viewer-mode-map
724 "f" (function mime-viewer/display-x-face))
725 (define-key mime/viewer-mode-map
726 "q" (function mime-viewer/quit))
727 (define-key mime/viewer-mode-map
728 "\C-c\C-x" (function mime-viewer/kill-buffer))
729 (define-key mime/viewer-mode-map
730 "<" (function beginning-of-buffer))
731 (define-key mime/viewer-mode-map
732 ">" (function end-of-buffer))
734 (define-key mime/viewer-mode-map
735 mouse-button-2 (function tm:button-dispatcher))
738 (define-key mime/viewer-mode-map
739 mouse-button-3 (function mime-viewer/popup-menu))
743 (defvar mime-viewer/popup-menu-title "MIME Viewer Commands")
744 (defvar mime-viewer/popup-menu-items
745 '(("Move to upper content" . mime-viewer/up-content)
746 ("Move to previous content" . mime-viewer/previous-content)
747 ("Move to next content" . mime-viewer/next-content)
748 ("Scroll to previous content" . mime-viewer/scroll-down-content)
749 ("Scroll to next content" . mime-viewer/scroll-up-content)
750 ("Play Content" . mime-viewer/play-content)
751 ("Extract Content" . mime-viewer/extract-content)
752 ("Print" . mime-viewer/print-content)
753 ("Show X Face" . mime-viewer/display-x-face)
755 "Popup Menu for MIME Viewer")
757 (cond ((string-match "XEmacs\\|Lucid" emacs-version)
758 (defvar mime-viewer/popup-menu
759 (cons mime-viewer/popup-menu-title
762 (vector (car item)(cdr item) t)
764 mime-viewer/popup-menu-items)))
765 (defun mime-viewer/popup-menu (event)
766 "Popup the menu in the MIME Viewer buffer"
768 (select-window (event-window event))
769 (set-buffer (event-buffer event))
770 (popup-menu 'mime-viewer/popup-menu))
772 ((>= emacs-major-version 19)
773 (defun mime-viewer/popup-menu (event)
775 (mouse-set-point event)
777 (cons mime-viewer/popup-menu-title
778 (list (cons "Menu Items" mime-viewer/popup-menu-items))
780 (let ((func (x-popup-menu event menu)))
788 (defun mime/viewer-mode (&optional mother ctl encoding ibuf obuf)
789 "Major mode for viewing MIME message.
791 Here is a list of the standard keys for mime/viewer-mode.
796 u Move to upper content
797 p Move to previous content
798 n Move to next content
799 SPC Scroll up or move to next content
800 M-SPC Scroll down or move to previous content
801 DEL Scroll down or move to previous content
802 RET Move to next line
803 M-RET Move to previous line
804 v Decode current content as `play mode'
805 e Decode current content as `extract mode'
806 C-c C-p Decode current content as `print mode'
809 button-2 Move to point under the mouse cursor
810 and decode current content as `play mode'
813 Here are all the commands with their current binding,
816 \\{mime/viewer-mode-map}
819 (let ((buf (get-buffer mime/output-buffer-name)))
825 (let ((ret (mime-viewer/setup-buffer ctl encoding ibuf obuf))
826 (win-conf (current-window-configuration))
829 (switch-to-buffer (car ret))
830 (setq mime::preview/original-window-configuration win-conf)
833 (setq mime::preview/mother-buffer mother)
835 (use-local-map mime/viewer-mode-map)
836 (setq mime::preview/content-list (nth 1 ret))
838 (let ((ce (mime::preview-content-info/point-max
839 (car mime::preview/content-list)
842 (goto-char (point-min))
843 (search-forward "\n\n" nil t)
844 (setq e (match-end 0))
848 (run-hooks 'mime/viewer-mode-hook)
851 (defun mime-preview/point-content-number (point)
852 (save-window-excursion
853 (let ((pc (mime-preview/point-pcinfo (point)))
855 (switch-to-buffer (mime::preview-content-info/buffer pc))
856 (setq cinfo (mime::preview-content-info/content-info pc))
857 (mime-article/point-content-number (mime::content-info/point-min cinfo))
860 (defun mime-preview/cinfo-to-pcinfo (cinfo)
861 (let ((rpcl mime::preview/content-list) cell)
864 (setq cell (car rpcl))
865 (if (eq cinfo (mime::preview-content-info/content-info cell))
868 (setq rpcl (cdr rpcl))
871 (autoload 'mime-preview/decode-content "tm-play")
873 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
875 (defun mime-viewer/play-content ()
877 (let ((mime-viewer/decoding-mode "play"))
878 (mime-preview/decode-content)
881 (defun mime-viewer/extract-content ()
883 (let ((mime-viewer/decoding-mode "extract"))
884 (mime-preview/decode-content)
887 (defun mime-viewer/print-content ()
889 (let ((mime-viewer/decoding-mode "print"))
890 (mime-preview/decode-content)
893 (defun mime-viewer/display-x-face ()
895 (save-window-excursion
896 (set-buffer mime::preview/article-buffer)
897 (mime-viewer/x-face-function)
900 (defun mime-viewer/up-content ()
902 (let ((pc (mime-preview/point-pcinfo (point))) cinfo
903 (the-buf (current-buffer))
905 (switch-to-buffer (mime::preview-content-info/buffer pc))
906 (setq cinfo (mime::preview-content-info/content-info pc))
907 (setq rcnum (mime::content-info/rcnum cinfo))
909 (mime-viewer/quit the-buf
910 (mime::preview-content-info/buffer pc)
912 (setq r (mime-article/rcnum-to-cinfo (cdr rcnum)))
913 (switch-to-buffer the-buf)
915 (let ((rpcl mime::preview/content-list) cell)
917 (setq cell (car rpcl))
918 (if (eq r (mime::preview-content-info/content-info cell))
920 (goto-char (mime::preview-content-info/point-min cell))
923 (setq rpcl (cdr rpcl))
927 (defun mime-viewer/previous-content ()
929 (let* ((pcl mime::preview/content-list)
931 (i (- (length pcl) 1))
935 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
937 (throw 'tag (goto-char beg))
941 (let ((f (assq mime::preview/original-major-mode
942 mime-viewer/over-to-previous-method-alist)))
949 (defun mime-viewer/next-content ()
951 (let ((pcl mime::preview/content-list)
956 (setq beg (mime::preview-content-info/point-min (car pcl)))
958 (throw 'tag (goto-char beg))
962 (let ((f (assq mime::preview/original-major-mode
963 mime-viewer/over-to-next-method-alist)))
970 (defun mime-viewer/scroll-up-content (&optional h)
973 (setq h (- (window-height) 1))
975 (if (= (point) (point-max))
976 (let ((f (assq mime::preview/original-major-mode
977 mime-viewer/over-to-next-method-alist)))
981 (let ((pcl mime::preview/content-list)
987 (setq beg (mime::preview-content-info/point-min (car pcl)))
1002 (defun mime-viewer/scroll-down-content (&optional h)
1005 (setq h (- (window-height) 1))
1007 (if (= (point) (point-min))
1008 (let ((f (assq mime::preview/original-major-mode
1009 mime-viewer/over-to-previous-method-alist)))
1013 (let ((pcl mime::preview/content-list)
1017 (or (let ((i (- (length pcl) 1)))
1020 (setq beg (mime::preview-content-info/point-min
1028 (forward-line (- h))
1034 (defun mime-viewer/next-line-content ()
1036 (mime-viewer/scroll-up-content 1)
1039 (defun mime-viewer/previous-line-content ()
1041 (mime-viewer/scroll-down-content 1)
1044 (defun mime-viewer/quit (&optional the-buf buf)
1047 (setq the-buf (current-buffer))
1050 (setq buf (mime::preview-content-info/buffer
1051 (mime-preview/point-pcinfo (point))))
1054 (switch-to-buffer buf)
1055 (assq major-mode mime-viewer/quitting-method-alist)
1059 (switch-to-buffer the-buf)
1064 (defun mime-viewer/kill-buffer ()
1066 (kill-buffer (current-buffer))
1075 (run-hooks 'tm-view-load-hook)