1 ;;; mime-view.el --- interactive MIME viewer for GNU Emacs
3 ;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
7 ;; Renamed: 1994/8/31 from tm-body.el
8 ;; Renamed: 1997/02/19 from tm-view.el
9 ;; Keywords: MIME, multimedia, mail, news
11 ;; This file is part of SEMI (Sophisticated Emacs MIME Interfaces).
13 ;; This program is free software; you can redistribute it and/or
14 ;; modify it under the terms of the GNU General Public License as
15 ;; published by the Free Software Foundation; either version 2, or (at
16 ;; your option) any later version.
18 ;; This program is distributed in the hope that it will be useful, but
19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 ;; General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs; see the file COPYING. If not, write to the
25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
26 ;; Boston, MA 02111-1307, USA.
32 (require 'eword-decode)
40 (defconst mime-view-version-string
41 `,(concat "SEMI MIME-View "
42 (mapconcat #'number-to-string (cdr semi-version) ".")
43 " (" (car semi-version) ")"))
49 (defvar mime-acting-condition
50 '(((type . text)(subtype . plain)
51 (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
54 ((type . text)(subtype . html)
55 (method "tm-html" nil 'file "" 'encoding 'mode 'name)
58 ((type . text)(subtype . x-rot13-47)
59 (method . mime-method-to-display-caesar)
62 ((type . text)(subtype . x-rot13-47-48)
63 (method . mime-method-to-display-caesar)
67 ((type . audio)(subtype . basic)
68 (method "tm-au" nil 'file "" 'encoding 'mode 'name)
73 (method "tm-image" nil 'file "" 'encoding 'mode 'name)
77 ((type . video)(subtype . mpeg)
78 (method "tm-mpeg" nil 'file "" 'encoding 'mode 'name)
82 ((type . application)(subtype . postscript)
83 (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
86 ((type . application)(subtype . octet-stream)
87 (method . mime-method-to-save)(mode "play" "print")
90 ((type . message)(subtype . external-body)
91 ("access-type" . "anon-ftp")
92 (method . mime-method-to-display-message/external-ftp)
94 ((type . message)(subtype . rfc822)
95 (method . mime-method-to-display-message/rfc822)
98 ((type . message)(subtype . partial)
99 (method . mime-method-to-store-message/partial)
103 ((method "metamail" t "-m" "tm" "-x" "-d" "-z" "-e" 'file)
106 ((method . mime-method-to-save)(mode . "extract"))
109 (defvar mime-view-childrens-header-showing-Content-Type-list
110 '("message/rfc822" "message/news"))
112 (defvar mime-view-visible-media-type-list
113 '("text/plain" nil "text/richtext" "text/enriched"
114 "text/rfc822-headers"
115 "text/x-latex" "application/x-latex"
116 "message/delivery-status"
117 "application/pgp" "text/x-pgp"
118 "application/octet-stream"
119 "application/x-selection" "application/x-comment")
120 "*List of media-types to be able to display in MIME-View buffer.
121 Each elements are string of TYPE/SUBTYPE, e.g. \"text/plain\".")
123 (defvar mime-view-content-button-visible-ctype-list
124 '("application/pgp"))
126 (defvar mime-view-uuencode-encoding-name-list '("x-uue" "x-uuencode"))
128 (defvar mime-view-ignored-field-list
129 '(".*Received" ".*Path" ".*Id" "References"
130 "Replied" "Errors-To"
131 "Lines" "Sender" ".*Host" "Xref"
132 "Content-Type" "Precedence"
134 "All fields that match this list will be hidden in MIME preview buffer.
135 Each elements are regexp of field-name. [mime-view.el]")
137 (defvar mime-view-ignored-field-regexp
139 (apply (function regexp-or) mime-view-ignored-field-list)
142 (defvar mime-view-visible-field-list '("Dnas.*" "Message-Id")
143 "All fields that match this list will be displayed in MIME preview buffer.
144 Each elements are regexp of field-name.")
146 (defvar mime-view-redisplay nil)
148 (defvar mime-view-announcement-for-message/partial
149 (if (and (>= emacs-major-version 19) window-system)
151 \[[ This is message/partial style split message. ]]
152 \[[ Please press `v' key in this buffer ]]
153 \[[ or click here by mouse button-2. ]]"
155 \[[ This is message/partial style split message. ]]
156 \[[ Please press `v' key in this buffer. ]]"
163 (defun mime-view-insert-entity-button (rcnum cinfo
164 media-type media-subtype params
166 "Insert entity-button."
168 (let ((access-type (assoc "access-type" params))
169 (num (or (cdr (assoc "x-part-number" params))
173 (format "%s" (1+ num))
179 (let ((server (assoc "server" params)))
180 (setq access-type (cdr access-type))
182 (format "%s %s ([%s] %s)"
183 num subj access-type (cdr server))
184 (let ((site (cdr (assoc "site" params)))
185 (dir (cdr (assoc "directory" params)))
187 (format "%s %s ([%s] %s:%s)"
188 num subj access-type site dir)
192 (let ((charset (cdr (assoc "charset" params))))
196 (format " <%s/%s%s%s>"
197 media-type media-subtype
199 (concat "; " charset)
202 (concat " (" encoding ")")
204 (if (>= (+ (current-column)(length rest))(window-width))
208 (function mime-preview-play-current-entity))
211 (defun mime-view-entity-button-function (rcnum cinfo
212 media-type media-subtype
213 params subj encoding)
214 "Insert entity button conditionally.
215 Please redefine this function if you want to change default setting."
217 (and (eq media-type 'application)
218 (or (eq media-subtype 'x-selection)
219 (and (eq media-subtype 'octet-stream)
221 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo)))
222 (and (eq (mime-entity-info-media-type entity-info)
224 (eq (mime-entity-info-media-subtype entity-info)
227 (mime-view-insert-entity-button
228 rcnum cinfo media-type media-subtype params subj encoding)
232 ;;; @@ content header filter
235 (defun mime-view-cut-header ()
236 (goto-char (point-min))
237 (while (re-search-forward mime-view-ignored-field-regexp nil t)
238 (let* ((beg (match-beginning 0))
240 (name (buffer-substring beg end))
243 (let ((rest mime-view-visible-field-list))
245 (if (string-match (car rest) name)
248 (setq rest (cdr rest))))
251 (if (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
256 (defun mime-view-default-content-header-filter ()
257 (mime-view-cut-header)
258 (eword-decode-header)
261 (defvar mime-view-content-header-filter-alist nil)
264 ;;; @@ content filter
267 (defvar mime-view-content-filter-alist
268 '(("text/enriched" . mime-view-filter-for-text/enriched)
269 ("text/richtext" . mime-view-filter-for-text/richtext)
270 (t . mime-view-filter-for-text/plain)
272 "Alist of media-types vs. corresponding MIME-View filter functions.
273 Each element looks like (TYPE/SUBTYPE . FUNCTION) or (t . FUNCTION).
274 TYPE/SUBTYPE is a string of media-type and FUNCTION is a filter
275 function. t means default media-type.")
278 ;;; @@ entity separator
281 (defun mime-view-entity-separator-function (rcnum cinfo
282 media-type media-subtype
284 "Insert entity separator conditionally.
285 Please redefine this function if you want to change default setting."
286 (or (mime-view-header-visible-p rcnum cinfo)
287 (mime-view-body-visible-p rcnum cinfo media-type media-subtype)
289 (goto-char (point-max))
294 ;;; @@ buffer local variables
297 ;;; @@@ in raw buffer
300 (defvar mime-raw-entity-info
301 "Information about structure of message.
302 Please use reference function `mime-entity-info-SLOT' to get value of
305 Following is a list of slots of the structure:
307 rcnum reversed content-number (list)
308 point-min beginning point of region in raw-buffer
309 point-max end point of region in raw-buffer
310 type media-type (symbol)
311 subtype media-subtype (symbol)
312 type/subtype media-type/subtype (string or nil)
313 parameters parameter of Content-Type field (association list)
314 encoding Content-Transfer-Encoding (string or nil)
315 children entities included in this entity (list of content-infos)
317 If an entity includes other entities in its body, such as multipart or
318 message/rfc822, entity-infos of other entities are included in
319 `children', so entity-info become a tree.")
320 (make-variable-buffer-local 'mime-raw-entity-info)
322 (defvar mime-preview-buffer nil
323 "MIME preview buffer corresponding with the (raw) buffer.")
324 (make-variable-buffer-local 'mime-preview-buffer)
327 ;;; @@@ in view buffer
330 (defvar mime-mother-buffer nil
331 "Mother buffer corresponding with the (MIME-View) buffer.
332 If current MIME-View buffer is generated by other buffer, such as
333 message/partial, it is called `mother-buffer'.")
334 (make-variable-buffer-local 'mime-mother-buffer)
336 (defvar mime-raw-buffer nil
337 "Raw buffer corresponding with the (MIME-View) buffer.")
338 (make-variable-buffer-local 'mime-raw-buffer)
340 (defvar mime-preview-original-major-mode nil
341 "Major-mode of mime-raw-buffer.")
342 (make-variable-buffer-local 'mime-preview-original-major-mode)
344 (make-variable-buffer-local 'mime-preview-original-window-configuration)
347 ;;; @@ quitting method
350 (defvar mime-view-quitting-method-alist
351 '((mime-show-message-mode
352 . mime-view-quitting-method-for-mime-show-message-mode))
353 "Alist of major-mode vs. quitting-method of mime-view.")
355 (defvar mime-view-over-to-previous-method-alist nil)
356 (defvar mime-view-over-to-next-method-alist nil)
358 (defvar mime-view-show-summary-method nil
359 "Alist of major-mode vs. show-summary-method.")
362 ;;; @@ following method
365 (defvar mime-view-following-method-alist nil
366 "Alist of major-mode vs. following-method of mime-view.")
368 (defvar mime-view-following-required-fields-list
375 ;; hack from Gnus 5.0.4.
377 (defvar mime-view-x-face-to-pbm-command
378 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
380 (defvar mime-view-x-face-command
381 (concat mime-view-x-face-to-pbm-command
383 "String to be executed to display an X-Face field.
384 The command will be executed in a sub-shell asynchronously.
385 The compressed face will be piped to this command.")
387 (defun mime-view-x-face-function ()
388 "Function to display X-Face field. You can redefine to customize."
389 ;; 1995/10/12 (c.f. tm-eng:130)
390 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
392 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
394 (goto-char (point-min))
395 (if (re-search-forward "^X-Face:[ \t]*" nil t)
396 (let ((beg (match-end 0))
397 (end (std11-field-end))
399 (call-process-region beg end "sh" nil 0 nil
400 "-c" mime-view-x-face-command)
407 (defun mime-view-setup-buffers (&optional ctl encoding ibuf obuf)
413 (or mime-view-redisplay
414 (setq mime-raw-entity-info (mime-parse-message ctl encoding))
416 (let* ((cinfo mime-raw-entity-info)
417 (pcl (mime/flatten-content-info cinfo))
418 (the-buf (current-buffer))
422 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
423 (set-buffer (get-buffer-create obuf))
424 (let ((inhibit-read-only t))
425 ;;(setq buffer-read-only nil)
428 (setq mime-raw-buffer the-buf)
429 (setq mime-preview-original-major-mode mode)
430 (setq major-mode 'mime-view-mode)
431 (setq mode-name "MIME-View")
433 (mime-view-display-entity (car pcl) cinfo the-buf obuf)
436 (set-buffer-modified-p nil)
438 (setq buffer-read-only t)
441 (setq mime-preview-buffer obuf)
444 (defun mime-view-display-entity (content cinfo ibuf obuf)
445 "Display entity from content-info CONTENT."
446 (let* ((beg (mime-entity-info-point-min content))
447 (end (mime-entity-info-point-max content))
448 (media-type (mime-entity-info-media-type content))
449 (media-subtype (mime-entity-info-media-subtype content))
450 (ctype (if media-type
452 (format "%s/%s" media-type media-subtype)
453 (symbol-name media-type)
455 (params (mime-entity-info-parameters content))
456 (encoding (mime-entity-info-encoding content))
457 (rcnum (mime-entity-info-rnum content))
461 (setq he (if (re-search-forward "^$" nil t)
468 (narrow-to-region beg end)
471 (mime-article/get-subject params encoding)))
475 (narrow-to-region nb nb)
476 (mime-view-entity-button-function
477 rcnum cinfo media-type media-subtype params subj encoding)
478 (if (mime-view-header-visible-p rcnum cinfo)
479 (mime-view-display-header beg he)
481 (if (and (null rcnum)
483 ctype mime-view-content-button-visible-ctype-list))
485 (goto-char (point-max))
486 (mime-view-insert-entity-button
487 rcnum cinfo media-type media-subtype params subj encoding)
489 (cond ((mime-view-body-visible-p rcnum cinfo media-type media-subtype)
490 (mime-view-display-body he end
491 rcnum cinfo ctype params subj encoding)
493 ((and (eq media-type 'message)(eq media-subtype 'partial))
494 (mime-view-insert-message/partial-button)
497 (null (mime-entity-info-children cinfo))
499 (goto-char (point-max))
500 (mime-view-insert-entity-button
501 rcnum cinfo media-type media-subtype params subj encoding)
503 (mime-view-entity-separator-function
504 rcnum cinfo media-type media-subtype params subj)
505 (setq ne (point-max))
507 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
508 (put-text-property nb ne 'mime-view-cinfo content)
512 (defun mime-view-display-header (beg end)
514 (narrow-to-region (point)(point))
515 (insert-buffer-substring mime-raw-buffer beg end)
516 (let ((f (cdr (assq mime-preview-original-major-mode
517 mime-view-content-header-filter-alist))))
520 (mime-view-default-content-header-filter)
522 (run-hooks 'mime-view-content-header-filter-hook)
525 (defun mime-view-display-body (beg end rcnum cinfo ctype params subj encoding)
527 (narrow-to-region (point-max)(point-max))
528 (insert-buffer-substring mime-raw-buffer beg end)
529 (let ((f (cdr (or (assoc ctype mime-view-content-filter-alist)
530 (assq t mime-view-content-filter-alist)))))
532 (funcall f ctype params encoding)
536 (defun mime-view-insert-message/partial-button ()
538 (goto-char (point-max))
539 (if (not (search-backward "\n\n" nil t))
542 (goto-char (point-max))
543 (narrow-to-region (point-max)(point-max))
544 (insert mime-view-announcement-for-message/partial)
545 (mime-add-button (point-min)(point-max)
546 (function mime-preview-play-current-entity))
549 (defun mime-article/get-uu-filename (param &optional encoding)
550 (if (member (or encoding
551 (cdr (assq 'encoding param))
553 mime-view-uuencode-encoding-name-list)
555 (or (if (re-search-forward "^begin [0-9]+ " nil t)
556 (if (looking-at ".+$")
557 (buffer-substring (match-beginning 0)(match-end 0))
562 (defun mime-article/get-subject (param &optional encoding)
563 (or (std11-find-field-body '("Content-Description" "Subject"))
565 (if (or (and (setq ret (mime/Content-Disposition))
566 (setq ret (assoc "filename" (cdr ret)))
568 (setq ret (assoc "name" param))
569 (setq ret (assoc "x-name" param))
571 (std11-strip-quoted-string (cdr ret))
573 (mime-article/get-uu-filename param encoding)
577 ;;; @ entity information
580 (defun mime-article/point-content-number (p &optional cinfo)
582 (setq cinfo mime-raw-entity-info)
584 (let ((b (mime-entity-info-point-min cinfo))
585 (e (mime-entity-info-point-max cinfo))
586 (c (mime-entity-info-children cinfo))
588 (if (and (<= b p)(<= p e))
589 (or (let (co ret (sn 0))
593 (setq ret (mime-article/point-content-number p co))
594 (cond ((eq ret t) (throw 'tag (list sn)))
595 (ret (throw 'tag (cons sn ret)))
602 (defsubst mime-article/rcnum-to-cinfo (rnum &optional cinfo)
603 (mime-article/cnum-to-cinfo (reverse rnum) cinfo)
606 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
608 (setq cinfo mime-raw-entity-info)
615 (let ((rc (nth sn (mime-entity-info-children cinfo))))
617 (mime-article/cnum-to-cinfo (cdr cn) rc)
621 (defun mime/flatten-content-info (&optional cinfo)
623 (setq cinfo mime-raw-entity-info)
625 (let ((dest (list cinfo))
626 (rcl (mime-entity-info-children cinfo))
629 (setq dest (nconc dest (mime/flatten-content-info (car rcl))))
635 ;;; @@ predicate functions
638 (defun mime-view-header-visible-p (rcnum cinfo)
639 "Return non-nil if header of current entity is visible."
641 (member (mime-entity-info-type/subtype
642 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo))
643 mime-view-childrens-header-showing-Content-Type-list)
646 (defun mime-view-body-visible-p (rcnum cinfo media-type media-subtype)
647 (let ((ctype (if media-type
649 (format "%s/%s" media-type media-subtype)
650 (symbol-name media-type)
652 (and (member ctype mime-view-visible-media-type-list)
653 (if (and (eq media-type 'application)
654 (eq media-subtype 'octet-stream))
655 (let ((ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo)))
656 (member (mime-entity-info-encoding ccinfo)
657 '(nil "7bit" "8bit"))
663 ;;; @ MIME viewer mode
666 (defconst mime-view-menu-title "MIME-View")
667 (defconst mime-view-menu-list
668 '((up "Move to upper entity" mime-preview-move-to-upper)
669 (previous "Move to previous entity" mime-preview-move-to-previous)
670 (next "Move to next entity" mime-preview-move-to-next)
671 (scroll-down "Scroll-down" mime-preview-scroll-down-entity)
672 (scroll-up "Scroll-up" mime-preview-scroll-up-entity)
673 (play "Play current entity" mime-preview-play-current-entity)
674 (extract "Extract current entity" mime-preview-extract-current-entity)
675 (print "Print current entity" mime-preview-print-current-entity)
676 (x-face "Show X Face" mime-view-display-x-face)
678 "Menu for MIME Viewer")
680 (cond (running-xemacs
681 (defvar mime-view-xemacs-popup-menu
682 (cons mime-view-menu-title
685 (vector (nth 1 item)(nth 2 item) t)
687 mime-view-menu-list)))
688 (defun mime-view-xemacs-popup-menu (event)
689 "Popup the menu in the MIME Viewer buffer"
691 (select-window (event-window event))
692 (set-buffer (event-buffer event))
693 (popup-menu 'mime-view-xemacs-popup-menu))
694 (defvar mouse-button-2 'button2)
697 (defvar mouse-button-2 [mouse-2])
700 (defun mime-view-define-keymap (&optional default)
701 (let ((mime-view-mode-map (if (keymapp default)
702 (copy-keymap default)
705 (define-key mime-view-mode-map
706 "u" (function mime-preview-move-to-upper))
707 (define-key mime-view-mode-map
708 "p" (function mime-preview-move-to-previous))
709 (define-key mime-view-mode-map
710 "n" (function mime-preview-move-to-next))
711 (define-key mime-view-mode-map
712 "\e\t" (function mime-preview-move-to-previous))
713 (define-key mime-view-mode-map
714 "\t" (function mime-preview-move-to-next))
715 (define-key mime-view-mode-map
716 " " (function mime-preview-scroll-up-entity))
717 (define-key mime-view-mode-map
718 "\M- " (function mime-preview-scroll-down-entity))
719 (define-key mime-view-mode-map
720 "\177" (function mime-preview-scroll-down-entity))
721 (define-key mime-view-mode-map
722 "\C-m" (function mime-preview-next-line-entity))
723 (define-key mime-view-mode-map
724 "\C-\M-m" (function mime-preview-previous-line-entity))
725 (define-key mime-view-mode-map
726 "v" (function mime-preview-play-current-entity))
727 (define-key mime-view-mode-map
728 "e" (function mime-preview-extract-current-entity))
729 (define-key mime-view-mode-map
730 "\C-c\C-p" (function mime-preview-print-current-entity))
731 (define-key mime-view-mode-map
732 "a" (function mime-preview-follow-current-entity))
733 (define-key mime-view-mode-map
734 "q" (function mime-preview-quit))
735 (define-key mime-view-mode-map
736 "h" (function mime-preview-show-summary))
737 (define-key mime-view-mode-map
738 "\C-c\C-x" (function mime-preview-kill-buffer))
739 ;; (define-key mime-view-mode-map
740 ;; "<" (function beginning-of-buffer))
741 ;; (define-key mime-view-mode-map
742 ;; ">" (function end-of-buffer))
743 (define-key mime-view-mode-map
744 "?" (function describe-mode))
745 (define-key mime-view-mode-map
746 [tab] (function mime-preview-move-to-next))
747 (define-key mime-view-mode-map
748 [delete] (function mime-preview-scroll-down-entity))
749 (define-key mime-view-mode-map
750 [backspace] (function mime-preview-scroll-down-entity))
751 (if (functionp default)
752 (cond (running-xemacs
753 (set-keymap-default-binding mime-view-mode-map default)
756 (setq mime-view-mode-map
757 (append mime-view-mode-map (list (cons t default))))
760 (define-key mime-view-mode-map
761 mouse-button-2 (function mime-button-dispatcher))
763 (cond (running-xemacs
764 (define-key mime-view-mode-map
765 mouse-button-3 (function mime-view-xemacs-popup-menu))
767 ((>= emacs-major-version 19)
768 (define-key mime-view-mode-map [menu-bar mime-view]
769 (cons mime-view-menu-title
770 (make-sparse-keymap mime-view-menu-title)))
773 (define-key mime-view-mode-map
774 (vector 'menu-bar 'mime-view (car item))
775 (cons (nth 1 item)(nth 2 item))
778 (reverse mime-view-menu-list)
781 (use-local-map mime-view-mode-map)
782 (run-hooks 'mime-view-define-keymap-hook)
785 (defsubst mime-maybe-hide-echo-buffer ()
786 "Clear mime-echo buffer and delete window for it."
787 (let ((buf (get-buffer mime-echo-buffer-name)))
792 (let ((win (get-buffer-window buf)))
799 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
800 default-keymap-or-function)
801 "Major mode for viewing MIME message.
803 Here is a list of the standard keys for mime-view-mode.
808 u Move to upper content
809 p or M-TAB Move to previous content
810 n or TAB Move to next content
811 SPC Scroll up or move to next content
812 M-SPC or 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.
821 button-2 Move to point under the mouse cursor
822 and decode current content as `play mode'
825 (mime-maybe-hide-echo-buffer)
826 (let ((ret (mime-view-setup-buffers ctl encoding ibuf obuf))
827 (win-conf (current-window-configuration))
830 (switch-to-buffer ret)
831 (setq mime-preview-original-window-configuration win-conf)
834 (setq mime-mother-buffer mother)
836 (mime-view-define-keymap default-keymap-or-function)
837 (let ((point (next-single-property-change (point-min) 'mime-view-cinfo)))
840 (goto-char (point-min))
841 (search-forward "\n\n" nil t)
843 (run-hooks 'mime-view-mode-hook)
850 (autoload 'mime-preview-play-current-entity "mime-play"
851 "Play current entity." t)
853 (defun mime-preview-extract-current-entity ()
854 "Extract current entity into file (maybe).
855 It decodes current entity to call internal or external method as
856 \"extract\" mode. The method is selected from variable
857 `mime-acting-condition'."
859 (mime-preview-play-current-entity "extract")
862 (defun mime-preview-print-current-entity ()
863 "Print current entity (maybe).
864 It decodes current entity to call internal or external method as
865 \"print\" mode. The method is selected from variable
866 `mime-acting-condition'."
868 (mime-preview-play-current-entity "print")
875 (defun mime-view-get-original-major-mode ()
876 "Return major-mode of original buffer.
877 If a current buffer has mime-mother-buffer, return original major-mode
878 of the mother-buffer."
879 (if mime-mother-buffer
881 (set-buffer mime-mother-buffer)
882 (mime-view-get-original-major-mode)
884 mime-preview-original-major-mode))
886 (defun mime-preview-follow-current-entity ()
887 "Write follow message to current entity.
888 It calls following-method selected from variable
889 `mime-view-following-method-alist'."
891 (let ((root-cinfo (get-text-property (point-min) 'mime-view-cinfo))
893 (while (null (setq cinfo (get-text-property (point) 'mime-view-cinfo)))
896 (let* ((p-beg (previous-single-property-change (point) 'mime-view-cinfo))
898 (rcnum (mime-entity-info-rnum cinfo))
903 (if (eq (next-single-property-change (point-min)
909 ((eq (next-single-property-change p-beg 'mime-view-cinfo)
913 (setq p-end (next-single-property-change p-beg 'mime-view-cinfo))
915 (setq p-end (point-max))
918 (setq p-end (point-max))
926 (next-single-property-change
927 (point) 'mime-view-cinfo))
929 (let ((rc (mime-entity-info-rnum
930 (get-text-property (point)
932 (or (equal rcnum (nthcdr (- (length rc) len) rc))
937 (setq p-end (point-max))
940 (let* ((mode (mime-view-get-original-major-mode))
941 (new-name (format "%s-%s" (buffer-name) (reverse rcnum)))
943 (the-buf (current-buffer))
944 (a-buf mime-raw-buffer)
947 (set-buffer (setq new-buf (get-buffer-create new-name)))
949 (insert-buffer-substring the-buf p-beg p-end)
950 (goto-char (point-min))
951 (if (mime-view-header-visible-p rcnum root-cinfo)
952 (delete-region (goto-char (point-min))
953 (if (re-search-forward "^$" nil t)
957 (goto-char (point-min))
959 (goto-char (point-min))
960 (let ((rcnum (mime-entity-info-rnum cinfo)) ci str)
965 (setq ci (mime-article/rcnum-to-cinfo rcnum))
968 (mime-entity-info-point-min ci)
969 (mime-entity-info-point-max ci)
971 (std11-header-string-except
973 (apply (function regexp-or) fields)
976 (eq (mime-entity-info-media-type ci) 'message)
977 (eq (mime-entity-info-media-subtype ci) 'rfc822))
983 (setq fields (std11-collect-field-names)
987 (let ((rest mime-view-following-required-fields-list))
989 (let ((field-name (car rest)))
990 (or (std11-field-body field-name)
997 (set-buffer mime-mother-buffer)
998 (set-buffer mime-raw-buffer)
999 (std11-field-body field-name)
1003 (setq rest (cdr rest))
1005 (eword-decode-header)
1007 (let ((f (cdr (assq mode mime-view-following-method-alist))))
1012 "Sorry, following method for %s is not implemented yet."
1021 (defun mime-view-display-x-face ()
1023 (save-window-excursion
1024 (set-buffer mime-raw-buffer)
1025 (mime-view-x-face-function)
1032 (defun mime-preview-move-to-upper ()
1033 "Move to upper entity.
1034 If there is no upper entity, call function `mime-preview-quit'."
1037 (while (null (setq cinfo (get-text-property (point) 'mime-view-cinfo)))
1040 (let ((r (mime-article/rcnum-to-cinfo
1041 (cdr (mime-entity-info-rnum cinfo))
1042 (get-text-property 1 'mime-view-cinfo)))
1045 (while (setq point (previous-single-property-change
1046 (point) 'mime-view-cinfo))
1048 (if (eq r (get-text-property (point) 'mime-view-cinfo))
1055 (defun mime-preview-move-to-previous ()
1056 "Move to previous entity.
1057 If there is no previous entity, it calls function registered in
1058 variable `mime-view-over-to-previous-method-alist'."
1060 (while (null (get-text-property (point) 'mime-view-cinfo))
1063 (let ((point (previous-single-property-change (point) 'mime-view-cinfo)))
1066 (let ((f (assq mime-preview-original-major-mode
1067 mime-view-over-to-previous-method-alist)))
1073 (defun mime-preview-move-to-next ()
1074 "Move to next entity.
1075 If there is no previous entity, it calls function registered in
1076 variable `mime-view-over-to-next-method-alist'."
1078 (let ((point (next-single-property-change (point) 'mime-view-cinfo)))
1081 (let ((f (assq mime-preview-original-major-mode
1082 mime-view-over-to-next-method-alist)))
1088 (defun mime-preview-scroll-up-entity (&optional h)
1089 "Scroll up current entity.
1090 If reached to (point-max), it calls function registered in variable
1091 `mime-view-over-to-next-method-alist'."
1094 (setq h (1- (window-height)))
1096 (if (= (point) (point-max))
1097 (let ((f (assq mime-preview-original-major-mode
1098 mime-view-over-to-next-method-alist)))
1103 (or (next-single-property-change (point) 'mime-view-cinfo)
1106 (if (> (point) point)
1111 (defun mime-preview-scroll-down-entity (&optional h)
1112 "Scroll down current entity.
1113 If reached to (point-min), it calls function registered in variable
1114 `mime-view-over-to-previous-method-alist'."
1117 (setq h (1- (window-height)))
1119 (if (= (point) (point-min))
1120 (let ((f (assq mime-preview-original-major-mode
1121 mime-view-over-to-previous-method-alist)))
1128 (while (> (point) 1)
1130 (previous-single-property-change (point)
1136 (setq point (point-min))
1138 (forward-line (- h))
1139 (if (< (point) point)
1143 (defun mime-preview-next-line-entity ()
1145 (mime-preview-scroll-up-entity 1)
1148 (defun mime-preview-previous-line-entity ()
1150 (mime-preview-scroll-down-entity 1)
1157 (defun mime-preview-quit ()
1158 "Quit from MIME-View buffer.
1159 It calls function registered in variable
1160 `mime-view-quitting-method-alist'."
1162 (let ((r (assq mime-preview-original-major-mode
1163 mime-view-quitting-method-alist)))
1168 (defun mime-preview-show-summary ()
1170 It calls function registered in variable
1171 `mime-view-show-summary-method'."
1173 (let ((r (assq mime-preview-original-major-mode
1174 mime-view-show-summary-method)))
1179 (defun mime-preview-kill-buffer ()
1181 (kill-buffer (current-buffer))
1188 (provide 'mime-view)
1190 (run-hooks 'mime-view-load-hook)
1192 ;;; mime-view.el ends here