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: 1994/08/31 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)
42 (defconst mime-view-version-string
43 `,(concat (car mime-module-version) " MIME-View "
44 (mapconcat #'number-to-string (cddr mime-module-version) ".")
45 " (" (cadr mime-module-version) ")"))
51 (defgroup mime-view nil
55 (defcustom mime-view-find-every-acting-situation t
56 "*Find every available acting-situation if non-nil."
60 (defcustom mime-acting-situation-examples-file "~/.mime-example"
61 "*File name of example about acting-situation demonstrated by user."
66 ;;; @ buffer local variables
72 (defvar mime-raw-message-info
73 "Information about structure of message.
74 Please use reference function `mime-entity-SLOT' to get value of SLOT.
76 Following is a list of slots of the structure:
78 node-id reversed entity-number (list of integers)
79 point-min beginning point of region in raw-buffer
80 point-max end point of region in raw-buffer
81 type media-type (symbol)
82 subtype media-subtype (symbol)
83 type/subtype media-type/subtype (string or nil)
84 parameters parameter of Content-Type field (association list)
85 encoding Content-Transfer-Encoding (string or nil)
86 children entities included in this entity (list of content-infos)
88 If an entity includes other entities in its body, such as multipart or
89 message/rfc822, `mime-entity' structures of them are included in
90 `children', so the `mime-entity' structure become a tree.")
91 (make-variable-buffer-local 'mime-raw-message-info)
93 (defvar mime-preview-buffer nil
94 "MIME-preview buffer corresponding with the (raw) buffer.")
95 (make-variable-buffer-local 'mime-preview-buffer)
98 ;;; @@ in preview-buffer
101 (defvar mime-mother-buffer nil
102 "Mother buffer corresponding with the (MIME-preview) buffer.
103 If current MIME-preview buffer is generated by other buffer, such as
104 message/partial, it is called `mother-buffer'.")
105 (make-variable-buffer-local 'mime-mother-buffer)
107 (defvar mime-raw-buffer nil
108 "Raw buffer corresponding with the (MIME-preview) buffer.")
109 (make-variable-buffer-local 'mime-raw-buffer)
111 (defvar mime-preview-original-major-mode nil
112 "Major-mode of mime-raw-buffer.")
113 (make-variable-buffer-local 'mime-preview-original-major-mode)
115 (defvar mime-preview-original-window-configuration nil
116 "Window-configuration before mime-view-mode is called.")
117 (make-variable-buffer-local 'mime-preview-original-window-configuration)
120 ;;; @ entity information
123 (defsubst mime-raw-find-entity-from-node-id (entity-node-id
124 &optional message-info)
125 "Return entity from ENTITY-NODE-ID in mime-raw-buffer.
126 If optional argument MESSAGE-INFO is not specified,
127 `mime-raw-message-info' is used."
128 (mime-raw-find-entity-from-number (reverse entity-node-id) message-info))
130 (defun mime-raw-find-entity-from-number (entity-number &optional message-info)
131 "Return entity from ENTITY-NUMBER in mime-raw-buffer.
132 If optional argument MESSAGE-INFO is not specified,
133 `mime-raw-message-info' is used."
135 (setq message-info mime-raw-message-info))
136 (if (eq entity-number t)
138 (let ((sn (car entity-number)))
141 (let ((rc (nth sn (mime-entity-children message-info))))
143 (mime-raw-find-entity-from-number (cdr entity-number) rc)
147 (defun mime-raw-find-entity-from-point (point &optional message-info)
148 "Return entity from POINT in mime-raw-buffer.
149 If optional argument MESSAGE-INFO is not specified,
150 `mime-raw-message-info' is used."
152 (setq message-info mime-raw-message-info))
153 (if (and (<= (mime-entity-point-min message-info) point)
154 (<= point (mime-entity-point-max message-info)))
155 (let ((children (mime-entity-children message-info)))
159 (mime-raw-find-entity-from-point point (car children))))
163 (setq children (cdr children)))
166 (defsubst mime-raw-point-to-entity-node-id (point &optional message-info)
167 "Return entity-node-id from POINT in mime-raw-buffer.
168 If optional argument MESSAGE-INFO is not specified,
169 `mime-raw-message-info' is used."
170 (mime-entity-node-id (mime-raw-find-entity-from-point point message-info)))
172 (defsubst mime-raw-point-to-entity-number (point &optional message-info)
173 "Return entity-number from POINT in mime-raw-buffer.
174 If optional argument MESSAGE-INFO is not specified,
175 `mime-raw-message-info' is used."
176 (reverse (mime-raw-point-to-entity-node-id point message-info)))
178 (defsubst mime-raw-entity-parent (entity &optional message-info)
179 "Return mother entity of ENTITY.
180 If optional argument MESSAGE-INFO is not specified,
181 `mime-raw-message-info' is used."
182 (mime-raw-find-entity-from-node-id (cdr (mime-entity-node-id entity))
185 (defun mime-raw-flatten-message-info (&optional message-info)
186 "Return list of entity in mime-raw-buffer.
187 If optional argument MESSAGE-INFO is not specified,
188 `mime-raw-message-info' is used."
190 (setq message-info mime-raw-message-info))
191 (let ((dest (list message-info))
192 (rcl (mime-entity-children message-info)))
194 (setq dest (nconc dest (mime-raw-flatten-message-info (car rcl))))
195 (setq rcl (cdr rcl)))
199 ;;; @ presentation of preview
205 ;;; @@@ predicate function
208 (defun mime-view-entity-button-visible-p (entity message-info)
209 "Return non-nil if header of ENTITY is visible.
210 Please redefine this function if you want to change default setting."
211 (let ((media-type (mime-entity-media-type entity))
212 (media-subtype (mime-entity-media-subtype entity)))
213 (or (not (eq media-type 'application))
214 (and (not (eq media-subtype 'x-selection))
215 (or (not (eq media-subtype 'octet-stream))
217 (mime-raw-entity-parent entity message-info)))
218 (or (not (eq (mime-entity-media-type mother-entity)
220 (not (eq (mime-entity-media-subtype mother-entity)
225 ;;; @@@ entity button generator
228 (defun mime-view-insert-entity-button (entity message-info subj)
229 "Insert entity-button of ENTITY."
230 (let ((entity-node-id (mime-entity-node-id entity))
231 (params (mime-entity-parameters entity)))
233 (let ((access-type (assoc "access-type" params))
234 (num (or (cdr (assoc "x-part-number" params))
235 (if (consp entity-node-id)
238 (format "%s" (1+ num))
240 (reverse entity-node-id) ".")
244 (let ((server (assoc "server" params)))
245 (setq access-type (cdr access-type))
247 (format "%s %s ([%s] %s)"
248 num subj access-type (cdr server))
249 (let ((site (cdr (assoc "site" params)))
250 (dir (cdr (assoc "directory" params)))
252 (format "%s %s ([%s] %s:%s)"
253 num subj access-type site dir)
257 (let ((media-type (mime-entity-media-type entity))
258 (media-subtype (mime-entity-media-subtype entity))
259 (charset (cdr (assoc "charset" params)))
260 (encoding (mime-entity-encoding entity)))
264 (format " <%s/%s%s%s>"
265 media-type media-subtype
267 (concat "; " charset)
270 (concat " (" encoding ")")
272 (if (>= (+ (current-column)(length rest))(window-width))
276 (function mime-preview-play-current-entity))
283 ;;; @@@ predicate function
286 ;; (defvar mime-view-childrens-header-showing-Content-Type-list
287 ;; '("message/rfc822" "message/news"))
289 ;; (defun mime-view-header-visible-p (entity message-info)
290 ;; "Return non-nil if header of ENTITY is visible."
291 ;; (let ((entity-node-id (mime-entity-node-id entity)))
292 ;; (member (mime-entity-type/subtype
293 ;; (mime-raw-find-entity-from-node-id
294 ;; (cdr entity-node-id) message-info))
295 ;; mime-view-childrens-header-showing-Content-Type-list)
298 ;;; @@@ entity header filter
301 (defvar mime-view-content-header-filter-alist nil)
303 (defun mime-view-default-content-header-filter ()
304 (mime-view-cut-header)
305 (eword-decode-header)
308 ;;; @@@ entity field cutter
311 (defvar mime-view-ignored-field-list
312 '(".*Received" ".*Path" ".*Id" "References"
313 "Replied" "Errors-To"
314 "Lines" "Sender" ".*Host" "Xref"
315 "Content-Type" "Precedence"
317 "All fields that match this list will be hidden in MIME preview buffer.
318 Each elements are regexp of field-name.")
320 (defvar mime-view-ignored-field-regexp
322 (apply (function regexp-or) mime-view-ignored-field-list)
325 (defvar mime-view-visible-field-list '("Dnas.*" "Message-Id")
326 "All fields that match this list will be displayed in MIME preview buffer.
327 Each elements are regexp of field-name.")
329 (defun mime-view-cut-header ()
330 (goto-char (point-min))
331 (while (re-search-forward mime-view-ignored-field-regexp nil t)
332 (let* ((beg (match-beginning 0))
334 (name (buffer-substring beg end))
337 (let ((rest mime-view-visible-field-list))
339 (if (string-match (car rest) name)
342 (setq rest (cdr rest))))
345 (if (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
354 ;;; @@@ predicate function
357 (defun mime-calist::field-match-method-as-default-rule (calist
358 field-type field-value)
359 (let ((s-field (assq field-type calist)))
360 (cond ((null s-field)
361 (cons (cons field-type field-value) calist)
365 (define-calist-field-match-method
366 'header #'mime-calist::field-match-method-as-default-rule)
368 (define-calist-field-match-method
369 'body #'mime-calist::field-match-method-as-default-rule)
372 (defvar mime-preview-condition nil
373 "Condition-tree about how to display entity.")
375 (ctree-set-calist-strictly
376 'mime-preview-condition '((type . application)(subtype . octet-stream)
379 (ctree-set-calist-strictly
380 'mime-preview-condition '((type . application)(subtype . octet-stream)
383 (ctree-set-calist-strictly
384 'mime-preview-condition '((type . application)(subtype . octet-stream)
388 (ctree-set-calist-strictly
389 'mime-preview-condition '((type . application)(subtype . pgp)
392 (ctree-set-calist-strictly
393 'mime-preview-condition '((type . application)(subtype . x-latex)
396 (ctree-set-calist-strictly
397 'mime-preview-condition '((type . application)(subtype . x-selection)
400 (ctree-set-calist-strictly
401 'mime-preview-condition '((type . application)(subtype . x-comment)
404 (ctree-set-calist-strictly
405 'mime-preview-condition '((type . message)(subtype . delivery-status)
408 (ctree-set-calist-strictly
409 'mime-preview-condition
411 (body-presentation-method . mime-preview-text/plain)))
413 (ctree-set-calist-strictly
414 'mime-preview-condition
417 (body-presentation-method . mime-preview-text/plain)))
419 (ctree-set-calist-strictly
420 'mime-preview-condition
421 '((type . text)(subtype . enriched)
423 (body-presentation-method . mime-preview-text/enriched)))
425 (ctree-set-calist-strictly
426 'mime-preview-condition
427 '((type . text)(subtype . richtext)
429 (body-presentation-method . mime-preview-text/richtext)))
431 (ctree-set-calist-strictly
432 'mime-preview-condition
433 '((type . text)(subtype . t)
435 (body-presentation-method . mime-preview-text/plain)))
437 (ctree-set-calist-strictly
438 'mime-preview-condition '((type . message)(subtype . partial)
439 (body-presentation-method
440 . mime-preview-message/partial-button)))
442 (ctree-set-calist-strictly
443 'mime-preview-condition '((type . message)(subtype . rfc822)
444 (body-presentation-method . nil)
445 (childrens-situation (header . visible)
446 (entity-button . invisible))))
448 (ctree-set-calist-strictly
449 'mime-preview-condition '((type . message)(subtype . news)
450 (body-presentation-method . nil)
451 (childrens-situation (header . visible)
452 (entity-button . invisible))))
455 ;;; @@@ entity filter
458 (autoload 'mime-preview-text/plain "mime-text")
459 (autoload 'mime-preview-text/enriched "mime-text")
460 (autoload 'mime-preview-text/richtext "mime-text")
462 (defvar mime-raw-representation-type-alist
463 '((mime-show-message-mode . binary)
464 (mime-temp-message-mode . binary)
467 "Alist of major-mode vs. representation-type of mime-raw-buffer.
468 Each element looks like (SYMBOL . REPRESENTATION-TYPE). SYMBOL is
469 major-mode or t. t means default. REPRESENTATION-TYPE must be
470 `binary' or `cooked'.
471 This value is overridden by buffer local variable
472 `mime-raw-representation-type' if it is not nil.")
475 (defvar mime-view-announcement-for-message/partial
476 (if (and (>= emacs-major-version 19) window-system)
478 \[[ This is message/partial style split message. ]]
479 \[[ Please press `v' key in this buffer ]]
480 \[[ or click here by mouse button-2. ]]"
482 \[[ This is message/partial style split message. ]]
483 \[[ Please press `v' key in this buffer. ]]"
486 (defun mime-preview-message/partial-button (&optional entity situation)
488 (goto-char (point-max))
489 (if (not (search-backward "\n\n" nil t))
492 (goto-char (point-max))
493 (narrow-to-region (point-max)(point-max))
494 (insert mime-view-announcement-for-message/partial)
495 (mime-add-button (point-min)(point-max)
496 #'mime-preview-play-current-entity)
500 ;;; @ acting-condition
503 (defvar mime-acting-condition nil
504 "Condition-tree about how to process entity.")
506 (if (file-readable-p mailcap-file)
507 (let ((entries (mailcap-parse-file)))
509 (let ((entry (car entries))
512 (let* ((field (car entry))
513 (field-type (car field)))
514 (cond ((eq field-type 'view) (setq view field))
515 ((eq field-type 'print) (setq print field))
516 ((memq field-type '(compose composetyped edit)))
517 (t (setq shared (cons field shared))))
519 (setq entry (cdr entry))
521 (setq shared (nreverse shared))
522 (ctree-set-calist-with-default
523 'mime-acting-condition
524 (append shared (list '(mode . "play")(cons 'method (cdr view)))))
526 (ctree-set-calist-with-default
527 'mime-acting-condition
529 (list '(mode . "print")(cons 'method (cdr view))))
532 (setq entries (cdr entries))
535 ;; (ctree-set-calist-strictly
536 ;; 'mime-acting-condition
537 ;; '((type . t)(subtype . t)(mode . "extract")
538 ;; (method . mime-method-to-save)))
539 (ctree-set-calist-with-default
540 'mime-acting-condition
542 (method . mime-method-to-save)))
544 ;; (ctree-set-calist-strictly
545 ;; 'mime-acting-condition
546 ;; '((type . text)(subtype . plain)(mode . "play")
547 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
549 ;; (ctree-set-calist-strictly
550 ;; 'mime-acting-condition
551 ;; '((type . text)(subtype . plain)(mode . "print")
552 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
554 ;; (ctree-set-calist-strictly
555 ;; 'mime-acting-condition
556 ;; '((type . text)(subtype . html)(mode . "play")
557 ;; (method "tm-html" nil 'file "" 'encoding 'mode 'name)
559 (ctree-set-calist-strictly
560 'mime-acting-condition
561 '((type . text)(subtype . x-rot13-47)(mode . "play")
562 (method . mime-method-to-display-caesar)
564 (ctree-set-calist-strictly
565 'mime-acting-condition
566 '((type . text)(subtype . x-rot13-47-48)(mode . "play")
567 (method . mime-method-to-display-caesar)
570 ;; (ctree-set-calist-strictly
571 ;; 'mime-acting-condition
572 ;; '((type . audio)(subtype . basic)(mode . "play")
573 ;; (method "tm-au" nil 'file "" 'encoding 'mode 'name)
576 ;; (ctree-set-calist-strictly
577 ;; 'mime-acting-condition
578 ;; '((type . image)(mode . "play")
579 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
581 ;; (ctree-set-calist-strictly
582 ;; 'mime-acting-condition
583 ;; '((type . image)(mode . "print")
584 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
587 ;; (ctree-set-calist-strictly
588 ;; 'mime-acting-condition
589 ;; '((type . video)(subtype . mpeg)(mode . "play")
590 ;; (method "tm-mpeg" nil 'file "" 'encoding 'mode 'name)
593 ;; (ctree-set-calist-strictly
594 ;; 'mime-acting-condition
595 ;; '((type . application)(subtype . postscript)(mode . "play")
596 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
598 ;; (ctree-set-calist-strictly
599 ;; 'mime-acting-condition
600 ;; '((type . application)(subtype . postscript)(mode . "print")
601 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
604 (ctree-set-calist-strictly
605 'mime-acting-condition
606 '((type . message)(subtype . rfc822)(mode . "play")
607 (method . mime-method-to-display-message/rfc822)
609 (ctree-set-calist-strictly
610 'mime-acting-condition
611 '((type . message)(subtype . partial)(mode . "play")
612 (method . mime-method-to-store-message/partial)
615 (ctree-set-calist-strictly
616 'mime-acting-condition
617 '((type . message)(subtype . external-body)
618 ("access-type" . "anon-ftp")
619 (method . mime-method-to-display-message/external-ftp)
622 (ctree-set-calist-strictly
623 'mime-acting-condition
624 '((type . application)(subtype . octet-stream)
625 (method . mime-method-to-save)
629 ;;; @ quitting method
632 (defvar mime-preview-quitting-method-alist
633 '((mime-show-message-mode
634 . mime-preview-quitting-method-for-mime-show-message-mode))
635 "Alist of major-mode vs. quitting-method of mime-view.")
637 (defvar mime-view-over-to-previous-method-alist nil)
638 (defvar mime-view-over-to-next-method-alist nil)
640 (defvar mime-view-show-summary-method nil
641 "Alist of major-mode vs. show-summary-method.")
644 ;;; @ following method
647 (defvar mime-view-following-method-alist nil
648 "Alist of major-mode vs. following-method of mime-view.")
650 (defvar mime-view-following-required-fields-list
657 ;; hack from Gnus 5.0.4.
659 (defvar mime-view-x-face-to-pbm-command
660 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
662 (defvar mime-view-x-face-command
663 (concat mime-view-x-face-to-pbm-command
665 "String to be executed to display an X-Face field.
666 The command will be executed in a sub-shell asynchronously.
667 The compressed face will be piped to this command.")
669 (defun mime-view-x-face-function ()
670 "Function to display X-Face field. You can redefine to customize."
671 ;; 1995/10/12 (c.f. tm-eng:130)
672 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
674 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
676 (goto-char (point-min))
677 (if (re-search-forward "^X-Face:[ \t]*" nil t)
678 (let ((beg (match-end 0))
679 (end (std11-field-end))
681 (call-process-region beg end "sh" nil 0 nil
682 "-c" mime-view-x-face-command)
689 (defvar mime-view-uuencode-encoding-name-list '("x-uue" "x-uuencode"))
695 (defvar mime-view-redisplay nil)
697 (defun mime-view-setup-buffers (&optional ctl encoding ibuf obuf)
703 (or mime-view-redisplay
704 (setq mime-raw-message-info (mime-parse-message ctl encoding))
706 (let ((message-info mime-raw-message-info)
707 (the-buf (current-buffer))
710 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
711 (set-buffer (get-buffer-create obuf))
712 (let ((inhibit-read-only t))
713 ;;(setq buffer-read-only nil)
716 (setq mime-raw-buffer the-buf)
717 (setq mime-preview-original-major-mode mode)
718 (setq major-mode 'mime-view-mode)
719 (setq mode-name "MIME-View")
720 (mime-view-display-entity message-info message-info
722 '((entity-button . invisible)
725 (set-buffer-modified-p nil)
727 (setq buffer-read-only t)
730 (setq mime-preview-buffer obuf)
733 (defun mime-view-display-entity (entity message-info ibuf obuf
735 (let* ((start (mime-entity-point-min entity))
736 (end (mime-entity-point-max entity))
737 (content-type (mime-entity-content-type entity))
738 (encoding (mime-entity-encoding entity))
739 end-of-header e nb ne subj)
742 (setq end-of-header (if (re-search-forward "^$" nil t)
745 (if (> end-of-header end)
746 (setq end-of-header end)
749 (narrow-to-region start end)
750 (setq subj (eword-decode-string (mime-raw-get-subject entity)))
754 (ctree-match-calist mime-preview-condition
757 (make-mime-content-type 'text 'plain))
758 (list* (cons 'encoding encoding)
759 (cons 'major-mode major-mode)
763 (eq (cdr (assq 'entity-button situation)) 'invisible))
765 (eq (cdr (assq 'header situation)) 'visible))
766 (body-presentation-method
767 (cdr (assq 'body-presentation-method situation))))
770 (narrow-to-region nb nb)
771 (or button-is-invisible
772 (if (mime-view-entity-button-visible-p entity message-info)
773 (mime-view-insert-entity-button entity message-info subj)
775 (if header-is-visible
777 (narrow-to-region (point)(point))
778 (insert-buffer-substring mime-raw-buffer start end-of-header)
779 (let ((f (cdr (assq mime-preview-original-major-mode
780 mime-view-content-header-filter-alist))))
783 (mime-view-default-content-header-filter)
785 (run-hooks 'mime-view-content-header-filter-hook)
787 (cond ((eq body-presentation-method 'with-filter)
788 (let ((body-filter (cdr (assq 'body-filter situation))))
790 (narrow-to-region (point-max)(point-max))
791 (insert-buffer-substring mime-raw-buffer end-of-header end)
792 (funcall body-filter situation)
794 ((functionp body-presentation-method)
795 (funcall body-presentation-method entity situation)
798 (when button-is-invisible
799 (goto-char (point-max))
800 (mime-view-insert-entity-button entity message-info subj)
802 (or header-is-visible
804 (goto-char (point-max))
808 (setq ne (point-max))
810 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
811 (put-text-property nb ne 'mime-view-entity entity)
813 (let ((children (mime-entity-children entity))
815 (cdr (assq 'childrens-situation situation))))
817 (mime-view-display-entity (car children) message-info ibuf obuf
819 (setq children (cdr children))
822 (defun mime-raw-get-uu-filename ()
824 (if (re-search-forward "^begin [0-9]+ " nil t)
825 (if (looking-at ".+$")
826 (buffer-substring (match-beginning 0)(match-end 0))
829 (defun mime-raw-get-subject (entity)
830 (or (std11-find-field-body '("Content-Description" "Subject"))
831 (let ((ret (mime-entity-content-disposition entity)))
833 (setq ret (mime-content-disposition-filename ret))
834 (std11-strip-quoted-string ret)
836 (let ((ret (mime-entity-content-type entity)))
840 (let ((param (mime-content-type-parameters ret)))
841 (or (assoc "name" param)
842 (assoc "x-name" param))
844 (std11-strip-quoted-string ret)
846 (if (member (mime-entity-encoding entity)
847 mime-view-uuencode-encoding-name-list)
848 (mime-raw-get-uu-filename))
852 ;;; @ MIME viewer mode
855 (defconst mime-view-menu-title "MIME-View")
856 (defconst mime-view-menu-list
857 '((up "Move to upper entity" mime-preview-move-to-upper)
858 (previous "Move to previous entity" mime-preview-move-to-previous)
859 (next "Move to next entity" mime-preview-move-to-next)
860 (scroll-down "Scroll-down" mime-preview-scroll-down-entity)
861 (scroll-up "Scroll-up" mime-preview-scroll-up-entity)
862 (play "Play current entity" mime-preview-play-current-entity)
863 (extract "Extract current entity" mime-preview-extract-current-entity)
864 (print "Print current entity" mime-preview-print-current-entity)
865 (x-face "Show X Face" mime-preview-display-x-face)
867 "Menu for MIME Viewer")
869 (cond (running-xemacs
870 (defvar mime-view-xemacs-popup-menu
871 (cons mime-view-menu-title
874 (vector (nth 1 item)(nth 2 item) t)
876 mime-view-menu-list)))
877 (defun mime-view-xemacs-popup-menu (event)
878 "Popup the menu in the MIME Viewer buffer"
880 (select-window (event-window event))
881 (set-buffer (event-buffer event))
882 (popup-menu 'mime-view-xemacs-popup-menu))
883 (defvar mouse-button-2 'button2)
886 (defvar mouse-button-2 [mouse-2])
889 (defun mime-view-define-keymap (&optional default)
890 (let ((mime-view-mode-map (if (keymapp default)
891 (copy-keymap default)
894 (define-key mime-view-mode-map
895 "u" (function mime-preview-move-to-upper))
896 (define-key mime-view-mode-map
897 "p" (function mime-preview-move-to-previous))
898 (define-key mime-view-mode-map
899 "n" (function mime-preview-move-to-next))
900 (define-key mime-view-mode-map
901 "\e\t" (function mime-preview-move-to-previous))
902 (define-key mime-view-mode-map
903 "\t" (function mime-preview-move-to-next))
904 (define-key mime-view-mode-map
905 " " (function mime-preview-scroll-up-entity))
906 (define-key mime-view-mode-map
907 "\M- " (function mime-preview-scroll-down-entity))
908 (define-key mime-view-mode-map
909 "\177" (function mime-preview-scroll-down-entity))
910 (define-key mime-view-mode-map
911 "\C-m" (function mime-preview-next-line-entity))
912 (define-key mime-view-mode-map
913 "\C-\M-m" (function mime-preview-previous-line-entity))
914 (define-key mime-view-mode-map
915 "v" (function mime-preview-play-current-entity))
916 (define-key mime-view-mode-map
917 "e" (function mime-preview-extract-current-entity))
918 (define-key mime-view-mode-map
919 "\C-c\C-p" (function mime-preview-print-current-entity))
920 (define-key mime-view-mode-map
921 "a" (function mime-preview-follow-current-entity))
922 (define-key mime-view-mode-map
923 "q" (function mime-preview-quit))
924 (define-key mime-view-mode-map
925 "h" (function mime-preview-show-summary))
926 (define-key mime-view-mode-map
927 "\C-c\C-x" (function mime-preview-kill-buffer))
928 ;; (define-key mime-view-mode-map
929 ;; "<" (function beginning-of-buffer))
930 ;; (define-key mime-view-mode-map
931 ;; ">" (function end-of-buffer))
932 (define-key mime-view-mode-map
933 "?" (function describe-mode))
934 (define-key mime-view-mode-map
935 [tab] (function mime-preview-move-to-next))
936 (define-key mime-view-mode-map
937 [delete] (function mime-preview-scroll-down-entity))
938 (define-key mime-view-mode-map
939 [backspace] (function mime-preview-scroll-down-entity))
940 (if (functionp default)
941 (cond (running-xemacs
942 (set-keymap-default-binding mime-view-mode-map default)
945 (setq mime-view-mode-map
946 (append mime-view-mode-map (list (cons t default))))
949 (define-key mime-view-mode-map
950 mouse-button-2 (function mime-button-dispatcher))
952 (cond (running-xemacs
953 (define-key mime-view-mode-map
954 mouse-button-3 (function mime-view-xemacs-popup-menu))
956 ((>= emacs-major-version 19)
957 (define-key mime-view-mode-map [menu-bar mime-view]
958 (cons mime-view-menu-title
959 (make-sparse-keymap mime-view-menu-title)))
962 (define-key mime-view-mode-map
963 (vector 'menu-bar 'mime-view (car item))
964 (cons (nth 1 item)(nth 2 item))
967 (reverse mime-view-menu-list)
970 (use-local-map mime-view-mode-map)
971 (run-hooks 'mime-view-define-keymap-hook)
974 (defsubst mime-maybe-hide-echo-buffer ()
975 "Clear mime-echo buffer and delete window for it."
976 (let ((buf (get-buffer mime-echo-buffer-name)))
981 (let ((win (get-buffer-window buf)))
988 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
989 default-keymap-or-function)
990 "Major mode for viewing MIME message.
992 Here is a list of the standard keys for mime-view-mode.
997 u Move to upper content
998 p or M-TAB Move to previous content
999 n or TAB Move to next content
1000 SPC Scroll up or move to next content
1001 M-SPC or DEL Scroll down or move to previous content
1002 RET Move to next line
1003 M-RET Move to previous line
1004 v Decode current content as `play mode'
1005 e Decode current content as `extract mode'
1006 C-c C-p Decode current content as `print mode'
1007 a Followup to current content.
1010 button-2 Move to point under the mouse cursor
1011 and decode current content as `play mode'
1014 (mime-maybe-hide-echo-buffer)
1015 (let ((ret (mime-view-setup-buffers ctl encoding ibuf obuf))
1016 (win-conf (current-window-configuration))
1019 (switch-to-buffer ret)
1020 (setq mime-preview-original-window-configuration win-conf)
1023 (setq mime-mother-buffer mother)
1025 (mime-view-define-keymap default-keymap-or-function)
1027 (next-single-property-change (point-min) 'mime-view-entity)))
1030 (goto-char (point-min))
1031 (search-forward "\n\n" nil t)
1033 (run-hooks 'mime-view-mode-hook)
1040 (autoload 'mime-preview-play-current-entity "mime-play"
1041 "Play current entity." t)
1043 (defun mime-preview-extract-current-entity ()
1044 "Extract current entity into file (maybe).
1045 It decodes current entity to call internal or external method as
1046 \"extract\" mode. The method is selected from variable
1047 `mime-acting-condition'."
1049 (mime-preview-play-current-entity "extract")
1052 (defun mime-preview-print-current-entity ()
1053 "Print current entity (maybe).
1054 It decodes current entity to call internal or external method as
1055 \"print\" mode. The method is selected from variable
1056 `mime-acting-condition'."
1058 (mime-preview-play-current-entity "print")
1065 (defun mime-preview-original-major-mode ()
1066 "Return major-mode of original buffer.
1067 If a current buffer has mime-mother-buffer, return original major-mode
1068 of the mother-buffer."
1069 (if mime-mother-buffer
1071 (set-buffer mime-mother-buffer)
1072 (mime-preview-original-major-mode)
1074 mime-preview-original-major-mode))
1076 (defun mime-preview-follow-current-entity ()
1077 "Write follow message to current entity.
1078 It calls following-method selected from variable
1079 `mime-view-following-method-alist'."
1082 (while (null (setq entity
1083 (get-text-property (point) 'mime-view-entity)))
1087 (previous-single-property-change (point) 'mime-view-entity))
1089 (entity-node-id (mime-entity-node-id entity))
1090 (len (length entity-node-id))
1094 (if (eq (next-single-property-change (point-min)
1100 ((eq (next-single-property-change p-beg 'mime-view-entity)
1102 (setq p-beg (point))
1104 (setq p-end (next-single-property-change p-beg 'mime-view-entity))
1106 (setq p-end (point-max))
1108 ((null entity-node-id)
1109 (setq p-end (point-max))
1117 (next-single-property-change
1118 (point) 'mime-view-entity))
1120 (let ((rc (mime-entity-node-id
1121 (get-text-property (point)
1122 'mime-view-entity))))
1123 (or (equal entity-node-id
1124 (nthcdr (- (length rc) len) rc))
1129 (setq p-end (point-max))
1132 (let* ((mode (mime-preview-original-major-mode))
1134 (format "%s-%s" (buffer-name) (reverse entity-node-id)))
1136 (the-buf (current-buffer))
1137 (a-buf mime-raw-buffer)
1140 (set-buffer (setq new-buf (get-buffer-create new-name)))
1142 (insert-buffer-substring the-buf p-beg p-end)
1143 (goto-char (point-min))
1144 (let ((entity-node-id (mime-entity-node-id entity)) ci str)
1152 (mime-raw-find-entity-from-node-id entity-node-id))
1155 (mime-entity-point-min ci)
1156 (mime-entity-point-max ci)
1158 (std11-header-string-except
1160 (apply (function regexp-or) fields)
1163 (eq (mime-entity-media-type ci) 'message)
1164 (eq (mime-entity-media-subtype ci) 'rfc822))
1170 (setq fields (std11-collect-field-names)
1171 entity-node-id (cdr entity-node-id))
1174 (let ((rest mime-view-following-required-fields-list))
1176 (let ((field-name (car rest)))
1177 (or (std11-field-body field-name)
1183 (set-buffer the-buf)
1184 (set-buffer mime-mother-buffer)
1185 (set-buffer mime-raw-buffer)
1186 (std11-field-body field-name)
1190 (setq rest (cdr rest))
1192 (eword-decode-header)
1194 (let ((f (cdr (assq mode mime-view-following-method-alist))))
1199 "Sorry, following method for %s is not implemented yet."
1208 (defun mime-preview-display-x-face ()
1210 (save-window-excursion
1211 (set-buffer mime-raw-buffer)
1212 (mime-view-x-face-function)
1219 (defun mime-preview-move-to-upper ()
1220 "Move to upper entity.
1221 If there is no upper entity, call function `mime-preview-quit'."
1224 (while (null (setq cinfo
1225 (get-text-property (point) 'mime-view-entity)))
1228 (let ((r (mime-raw-find-entity-from-node-id
1229 (cdr (mime-entity-node-id cinfo))
1230 (get-text-property 1 'mime-view-entity)))
1233 (while (setq point (previous-single-property-change
1234 (point) 'mime-view-entity))
1236 (if (eq r (get-text-property (point) 'mime-view-entity))
1243 (defun mime-preview-move-to-previous ()
1244 "Move to previous entity.
1245 If there is no previous entity, it calls function registered in
1246 variable `mime-view-over-to-previous-method-alist'."
1248 (while (null (get-text-property (point) 'mime-view-entity))
1251 (let ((point (previous-single-property-change (point) 'mime-view-entity)))
1253 (if (get-text-property (1- point) 'mime-view-entity)
1255 (goto-char (1- point))
1256 (mime-preview-move-to-previous)
1258 (let ((f (assq mime-preview-original-major-mode
1259 mime-view-over-to-previous-method-alist)))
1265 (defun mime-preview-move-to-next ()
1266 "Move to next entity.
1267 If there is no previous entity, it calls function registered in
1268 variable `mime-view-over-to-next-method-alist'."
1270 (while (null (get-text-property (point) 'mime-view-entity))
1273 (let ((point (next-single-property-change (point) 'mime-view-entity)))
1277 (if (null (get-text-property point 'mime-view-entity))
1278 (mime-preview-move-to-next)
1280 (let ((f (assq mime-preview-original-major-mode
1281 mime-view-over-to-next-method-alist)))
1287 (defun mime-preview-scroll-up-entity (&optional h)
1288 "Scroll up current entity.
1289 If reached to (point-max), it calls function registered in variable
1290 `mime-view-over-to-next-method-alist'."
1293 (setq h (1- (window-height)))
1295 (if (= (point) (point-max))
1296 (let ((f (assq mime-preview-original-major-mode
1297 mime-view-over-to-next-method-alist)))
1302 (or (next-single-property-change (point) 'mime-view-entity)
1305 (if (> (point) point)
1310 (defun mime-preview-scroll-down-entity (&optional h)
1311 "Scroll down current entity.
1312 If reached to (point-min), it calls function registered in variable
1313 `mime-view-over-to-previous-method-alist'."
1316 (setq h (1- (window-height)))
1318 (if (= (point) (point-min))
1319 (let ((f (assq mime-preview-original-major-mode
1320 mime-view-over-to-previous-method-alist)))
1329 (previous-single-property-change (point)
1335 (setq point (point-min))
1337 (forward-line (- h))
1338 (if (< (point) point)
1342 (defun mime-preview-next-line-entity ()
1344 (mime-preview-scroll-up-entity 1)
1347 (defun mime-preview-previous-line-entity ()
1349 (mime-preview-scroll-down-entity 1)
1356 (defun mime-preview-quit ()
1357 "Quit from MIME-preview buffer.
1358 It calls function registered in variable
1359 `mime-preview-quitting-method-alist'."
1361 (let ((r (assq mime-preview-original-major-mode
1362 mime-preview-quitting-method-alist)))
1367 (defun mime-preview-show-summary ()
1369 It calls function registered in variable
1370 `mime-view-show-summary-method'."
1372 (let ((r (assq mime-preview-original-major-mode
1373 mime-view-show-summary-method)))
1378 (defun mime-preview-kill-buffer ()
1380 (kill-buffer (current-buffer))
1387 (provide 'mime-view)
1389 (run-hooks 'mime-view-load-hook)
1391 ;;; mime-view.el ends here