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 WEMI (Widget based 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-text-decoder-alist
463 '((mime-show-message-mode . mime-text-decode-buffer)
464 (mime-temp-message-mode . mime-text-decode-buffer)
465 (t . mime-text-decode-buffer-maybe)
467 "Alist of major-mode vs. mime-text-decoder.
468 Each element looks like (SYMBOL . FUNCTION). SYMBOL is major-mode or
471 Specification of FUNCTION is described in DOC-string of variable
474 This value is overridden by buffer local variable `mime-text-decoder'
478 (defvar mime-view-announcement-for-message/partial
479 (if (and (>= emacs-major-version 19) window-system)
481 This is message/partial style split message.
482 Please press `v' key in this buffer or click here by mouse button-2."
484 This is message/partial style split message.
485 Please press `v' key in this buffer."
488 (defun mime-preview-message/partial-button (&optional entity situation)
490 (goto-char (point-max))
491 (if (not (search-backward "\n\n" nil t))
494 (goto-char (point-max))
495 ;;(narrow-to-region (point-max)(point-max))
496 ;;(insert mime-view-announcement-for-message/partial)
497 ;; (mime-add-button (point-min)(point-max)
498 ;; #'mime-preview-play-current-entity)
499 (mime-insert-button mime-view-announcement-for-message/partial
500 #'mime-preview-play-current-entity)
504 ;;; @ acting-condition
507 (defvar mime-acting-condition nil
508 "Condition-tree about how to process entity.")
510 (if (file-readable-p mailcap-file)
511 (let ((entries (mailcap-parse-file)))
513 (let ((entry (car entries))
516 (let* ((field (car entry))
517 (field-type (car field)))
518 (cond ((eq field-type 'view) (setq view field))
519 ((eq field-type 'print) (setq print field))
520 ((memq field-type '(compose composetyped edit)))
521 (t (setq shared (cons field shared))))
523 (setq entry (cdr entry))
525 (setq shared (nreverse shared))
526 (ctree-set-calist-with-default
527 'mime-acting-condition
528 (append shared (list '(mode . "play")(cons 'method (cdr view)))))
530 (ctree-set-calist-with-default
531 'mime-acting-condition
533 (list '(mode . "print")(cons 'method (cdr view))))
536 (setq entries (cdr entries))
539 ;; (ctree-set-calist-strictly
540 ;; 'mime-acting-condition
541 ;; '((type . t)(subtype . t)(mode . "extract")
542 ;; (method . mime-method-to-save)))
543 (ctree-set-calist-with-default
544 'mime-acting-condition
546 (method . mime-method-to-save)))
548 ;; (ctree-set-calist-strictly
549 ;; 'mime-acting-condition
550 ;; '((type . text)(subtype . plain)(mode . "play")
551 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
553 ;; (ctree-set-calist-strictly
554 ;; 'mime-acting-condition
555 ;; '((type . text)(subtype . plain)(mode . "print")
556 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
558 ;; (ctree-set-calist-strictly
559 ;; 'mime-acting-condition
560 ;; '((type . text)(subtype . html)(mode . "play")
561 ;; (method "tm-html" nil 'file "" 'encoding 'mode 'name)
563 (ctree-set-calist-strictly
564 'mime-acting-condition
565 '((type . text)(subtype . x-rot13-47)(mode . "play")
566 (method . mime-method-to-display-caesar)
568 (ctree-set-calist-strictly
569 'mime-acting-condition
570 '((type . text)(subtype . x-rot13-47-48)(mode . "play")
571 (method . mime-method-to-display-caesar)
574 ;; (ctree-set-calist-strictly
575 ;; 'mime-acting-condition
576 ;; '((type . audio)(subtype . basic)(mode . "play")
577 ;; (method "tm-au" nil 'file "" 'encoding 'mode 'name)
580 ;; (ctree-set-calist-strictly
581 ;; 'mime-acting-condition
582 ;; '((type . image)(mode . "play")
583 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
585 ;; (ctree-set-calist-strictly
586 ;; 'mime-acting-condition
587 ;; '((type . image)(mode . "print")
588 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
591 ;; (ctree-set-calist-strictly
592 ;; 'mime-acting-condition
593 ;; '((type . video)(subtype . mpeg)(mode . "play")
594 ;; (method "tm-mpeg" nil 'file "" 'encoding 'mode 'name)
597 ;; (ctree-set-calist-strictly
598 ;; 'mime-acting-condition
599 ;; '((type . application)(subtype . postscript)(mode . "play")
600 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
602 ;; (ctree-set-calist-strictly
603 ;; 'mime-acting-condition
604 ;; '((type . application)(subtype . postscript)(mode . "print")
605 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
608 (ctree-set-calist-strictly
609 'mime-acting-condition
610 '((type . message)(subtype . rfc822)(mode . "play")
611 (method . mime-method-to-display-message/rfc822)
613 (ctree-set-calist-strictly
614 'mime-acting-condition
615 '((type . message)(subtype . partial)(mode . "play")
616 (method . mime-method-to-store-message/partial)
619 (ctree-set-calist-strictly
620 'mime-acting-condition
621 '((type . message)(subtype . external-body)
622 ("access-type" . "anon-ftp")
623 (method . mime-method-to-display-message/external-ftp)
626 (ctree-set-calist-strictly
627 'mime-acting-condition
628 '((type . application)(subtype . octet-stream)
629 (method . mime-method-to-save)
633 ;;; @ quitting method
636 (defvar mime-preview-quitting-method-alist
637 '((mime-show-message-mode
638 . mime-preview-quitting-method-for-mime-show-message-mode))
639 "Alist of major-mode vs. quitting-method of mime-view.")
641 (defvar mime-view-over-to-previous-method-alist nil)
642 (defvar mime-view-over-to-next-method-alist nil)
644 (defvar mime-view-show-summary-method nil
645 "Alist of major-mode vs. show-summary-method.")
648 ;;; @ following method
651 (defvar mime-view-following-method-alist nil
652 "Alist of major-mode vs. following-method of mime-view.")
654 (defvar mime-view-following-required-fields-list
661 ;; hack from Gnus 5.0.4.
663 (defvar mime-view-x-face-to-pbm-command
664 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
666 (defvar mime-view-x-face-command
667 (concat mime-view-x-face-to-pbm-command
669 "String to be executed to display an X-Face field.
670 The command will be executed in a sub-shell asynchronously.
671 The compressed face will be piped to this command.")
673 (defun mime-view-x-face-function ()
674 "Function to display X-Face field. You can redefine to customize."
675 ;; 1995/10/12 (c.f. tm-eng:130)
676 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
678 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
680 (goto-char (point-min))
681 (if (re-search-forward "^X-Face:[ \t]*" nil t)
682 (let ((beg (match-end 0))
683 (end (std11-field-end))
685 (call-process-region beg end "sh" nil 0 nil
686 "-c" mime-view-x-face-command)
693 (defvar mime-view-uuencode-encoding-name-list '("x-uue" "x-uuencode"))
695 (defvar mime-raw-buffer-coding-system-alist
696 `((t . ,(mime-charset-to-coding-system default-mime-charset)))
697 "Alist of major-mode vs. corresponding coding-system of `mime-raw-buffer'.")
703 (defvar mime-view-redisplay nil)
705 (defun mime-view-setup-buffers (&optional ctl encoding ibuf obuf)
711 (or mime-view-redisplay
712 (setq mime-raw-message-info (mime-parse-message ctl encoding))
714 (let ((message-info mime-raw-message-info)
715 (the-buf (current-buffer))
718 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
719 (set-buffer (get-buffer-create obuf))
720 (let ((inhibit-read-only t))
721 ;;(setq buffer-read-only nil)
724 (setq mime-raw-buffer the-buf)
725 (setq mime-preview-original-major-mode mode)
726 (setq major-mode 'mime-view-mode)
727 (setq mode-name "MIME-View")
728 (mime-view-display-entity message-info message-info
730 '((entity-button . invisible)
733 (set-buffer-modified-p nil)
735 (setq buffer-read-only t)
738 (setq mime-preview-buffer obuf)
741 (defun mime-view-display-entity (entity message-info ibuf obuf
743 (let* ((start (mime-entity-point-min entity))
744 (end (mime-entity-point-max entity))
745 (content-type (mime-entity-content-type entity))
746 (encoding (mime-entity-encoding entity))
747 end-of-header e nb ne subj)
750 (setq end-of-header (if (re-search-forward "^$" nil t)
753 (if (> end-of-header end)
754 (setq end-of-header end)
757 (narrow-to-region start end)
758 (setq subj (eword-decode-string (mime-raw-get-subject entity)))
762 (ctree-match-calist mime-preview-condition
765 (make-mime-content-type 'text 'plain))
766 (list* (cons 'encoding encoding)
767 (cons 'major-mode major-mode)
771 (eq (cdr (assq 'entity-button situation)) 'invisible))
773 (eq (cdr (assq 'header situation)) 'visible))
774 (body-presentation-method
775 (cdr (assq 'body-presentation-method situation))))
778 (narrow-to-region nb nb)
779 (or button-is-invisible
780 (if (mime-view-entity-button-visible-p entity message-info)
781 (mime-view-insert-entity-button entity message-info subj)
783 (if header-is-visible
785 (narrow-to-region (point)(point))
786 (insert-buffer-substring mime-raw-buffer start end-of-header)
787 (let ((f (cdr (assq mime-preview-original-major-mode
788 mime-view-content-header-filter-alist))))
791 (mime-view-default-content-header-filter)
793 (run-hooks 'mime-view-content-header-filter-hook)
795 (cond ((eq body-presentation-method 'with-filter)
796 (let ((body-filter (cdr (assq 'body-filter situation))))
798 (narrow-to-region (point-max)(point-max))
799 (insert-buffer-substring mime-raw-buffer end-of-header end)
800 (funcall body-filter situation)
802 ((functionp body-presentation-method)
803 (funcall body-presentation-method entity situation)
805 (or header-is-visible
806 body-presentation-method
808 (goto-char (point-max))
811 (setq ne (point-max))
813 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
814 (put-text-property nb ne 'mime-view-entity entity)
816 (let ((children (mime-entity-children entity))
818 (cdr (assq 'childrens-situation situation))))
820 (mime-view-display-entity (car children) message-info ibuf obuf
822 (setq children (cdr children))
825 (defun mime-raw-get-uu-filename ()
827 (if (re-search-forward "^begin [0-9]+ " nil t)
828 (if (looking-at ".+$")
829 (buffer-substring (match-beginning 0)(match-end 0))
832 (defun mime-raw-get-subject (entity)
833 (or (std11-find-field-body '("Content-Description" "Subject"))
834 (let ((ret (mime-entity-content-disposition entity)))
836 (setq ret (mime-content-disposition-filename ret))
837 (std11-strip-quoted-string ret)
839 (let ((ret (mime-entity-content-type entity)))
843 (let ((param (mime-content-type-parameters ret)))
844 (or (assoc "name" param)
845 (assoc "x-name" param))
847 (std11-strip-quoted-string ret)
849 (if (member (mime-entity-encoding entity)
850 mime-view-uuencode-encoding-name-list)
851 (mime-raw-get-uu-filename))
855 ;;; @ MIME viewer mode
858 (defconst mime-view-menu-title "MIME-View")
859 (defconst mime-view-menu-list
860 '((up "Move to upper entity" mime-preview-move-to-upper)
861 (previous "Move to previous entity" mime-preview-move-to-previous)
862 (next "Move to next entity" mime-preview-move-to-next)
863 (scroll-down "Scroll-down" mime-preview-scroll-down-entity)
864 (scroll-up "Scroll-up" mime-preview-scroll-up-entity)
865 (play "Play current entity" mime-preview-play-current-entity)
866 (extract "Extract current entity" mime-preview-extract-current-entity)
867 (print "Print current entity" mime-preview-print-current-entity)
868 (x-face "Show X Face" mime-preview-display-x-face)
870 "Menu for MIME Viewer")
872 (cond (running-xemacs
873 (defvar mime-view-xemacs-popup-menu
874 (cons mime-view-menu-title
877 (vector (nth 1 item)(nth 2 item) t)
879 mime-view-menu-list)))
880 (defun mime-view-xemacs-popup-menu (event)
881 "Popup the menu in the MIME Viewer buffer"
883 (select-window (event-window event))
884 (set-buffer (event-buffer event))
885 (popup-menu 'mime-view-xemacs-popup-menu))
886 (defvar mouse-button-2 'button2)
889 (defvar mouse-button-2 [mouse-2])
892 (defun mime-view-define-keymap (&optional default)
893 (let ((mime-view-mode-map (if (keymapp default)
894 (copy-keymap default)
897 (define-key mime-view-mode-map
898 "u" (function mime-preview-move-to-upper))
899 (define-key mime-view-mode-map
900 "p" (function mime-preview-move-to-previous))
901 (define-key mime-view-mode-map
902 "n" (function mime-preview-move-to-next))
903 (define-key mime-view-mode-map
904 "\e\t" (function mime-preview-move-to-previous))
905 (define-key mime-view-mode-map
906 "\t" (function mime-preview-move-to-next))
907 (define-key mime-view-mode-map
908 " " (function mime-preview-scroll-up-entity))
909 (define-key mime-view-mode-map
910 "\M- " (function mime-preview-scroll-down-entity))
911 (define-key mime-view-mode-map
912 "\177" (function mime-preview-scroll-down-entity))
913 (define-key mime-view-mode-map
914 "\C-m" (function mime-preview-next-line-entity))
915 (define-key mime-view-mode-map
916 "\C-\M-m" (function mime-preview-previous-line-entity))
917 (define-key mime-view-mode-map
918 "v" (function mime-preview-play-current-entity))
919 (define-key mime-view-mode-map
920 "e" (function mime-preview-extract-current-entity))
921 (define-key mime-view-mode-map
922 "\C-c\C-p" (function mime-preview-print-current-entity))
923 (define-key mime-view-mode-map
924 "a" (function mime-preview-follow-current-entity))
925 (define-key mime-view-mode-map
926 "q" (function mime-preview-quit))
927 (define-key mime-view-mode-map
928 "h" (function mime-preview-show-summary))
929 (define-key mime-view-mode-map
930 "\C-c\C-x" (function mime-preview-kill-buffer))
931 ;; (define-key mime-view-mode-map
932 ;; "<" (function beginning-of-buffer))
933 ;; (define-key mime-view-mode-map
934 ;; ">" (function end-of-buffer))
935 (define-key mime-view-mode-map
936 "?" (function describe-mode))
937 (define-key mime-view-mode-map
938 [tab] (function mime-preview-move-to-next))
939 (define-key mime-view-mode-map
940 [delete] (function mime-preview-scroll-down-entity))
941 (define-key mime-view-mode-map
942 [backspace] (function mime-preview-scroll-down-entity))
943 (if (functionp default)
944 (cond (running-xemacs
945 (set-keymap-default-binding mime-view-mode-map default)
948 (setq mime-view-mode-map
949 (append mime-view-mode-map (list (cons t default))))
952 (define-key mime-view-mode-map
953 mouse-button-2 (function mime-button-dispatcher))
955 (cond (running-xemacs
956 (define-key mime-view-mode-map
957 mouse-button-3 (function mime-view-xemacs-popup-menu))
959 ((>= emacs-major-version 19)
960 (define-key mime-view-mode-map [menu-bar mime-view]
961 (cons mime-view-menu-title
962 (make-sparse-keymap mime-view-menu-title)))
965 (define-key mime-view-mode-map
966 (vector 'menu-bar 'mime-view (car item))
967 (cons (nth 1 item)(nth 2 item))
970 (reverse mime-view-menu-list)
973 (use-local-map mime-view-mode-map)
974 (run-hooks 'mime-view-define-keymap-hook)
977 (defsubst mime-maybe-hide-echo-buffer ()
978 "Clear mime-echo buffer and delete window for it."
979 (let ((buf (get-buffer mime-echo-buffer-name)))
984 (let ((win (get-buffer-window buf)))
991 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
992 default-keymap-or-function)
993 "Major mode for viewing MIME message.
995 Here is a list of the standard keys for mime-view-mode.
1000 u Move to upper content
1001 p or M-TAB Move to previous content
1002 n or TAB Move to next content
1003 SPC Scroll up or move to next content
1004 M-SPC or DEL Scroll down or move to previous content
1005 RET Move to next line
1006 M-RET Move to previous line
1007 v Decode current content as `play mode'
1008 e Decode current content as `extract mode'
1009 C-c C-p Decode current content as `print mode'
1010 a Followup to current content.
1013 button-2 Move to point under the mouse cursor
1014 and decode current content as `play mode'
1017 (mime-maybe-hide-echo-buffer)
1018 (let ((ret (mime-view-setup-buffers ctl encoding ibuf obuf))
1019 (win-conf (current-window-configuration))
1022 (switch-to-buffer ret)
1023 (setq mime-preview-original-window-configuration win-conf)
1026 (setq mime-mother-buffer mother)
1028 (mime-view-define-keymap default-keymap-or-function)
1030 (next-single-property-change (point-min) 'mime-view-entity)))
1033 (goto-char (point-min))
1034 (search-forward "\n\n" nil t)
1036 (run-hooks 'mime-view-mode-hook)
1043 (autoload 'mime-preview-play-current-entity "mime-play"
1044 "Play current entity." t)
1046 (defun mime-preview-extract-current-entity ()
1047 "Extract current entity into file (maybe).
1048 It decodes current entity to call internal or external method as
1049 \"extract\" mode. The method is selected from variable
1050 `mime-acting-condition'."
1052 (mime-preview-play-current-entity "extract")
1055 (defun mime-preview-print-current-entity ()
1056 "Print current entity (maybe).
1057 It decodes current entity to call internal or external method as
1058 \"print\" mode. The method is selected from variable
1059 `mime-acting-condition'."
1061 (mime-preview-play-current-entity "print")
1068 (defun mime-preview-original-major-mode ()
1069 "Return major-mode of original buffer.
1070 If a current buffer has mime-mother-buffer, return original major-mode
1071 of the mother-buffer."
1072 (if mime-mother-buffer
1074 (set-buffer mime-mother-buffer)
1075 (mime-preview-original-major-mode)
1077 mime-preview-original-major-mode))
1079 (defun mime-preview-follow-current-entity ()
1080 "Write follow message to current entity.
1081 It calls following-method selected from variable
1082 `mime-view-following-method-alist'."
1085 (while (null (setq entity
1086 (get-text-property (point) 'mime-view-entity)))
1090 (previous-single-property-change (point) 'mime-view-entity))
1092 (entity-node-id (mime-entity-node-id entity))
1093 (len (length entity-node-id))
1097 (if (eq (next-single-property-change (point-min)
1103 ((eq (next-single-property-change p-beg 'mime-view-entity)
1105 (setq p-beg (point))
1107 (setq p-end (next-single-property-change p-beg 'mime-view-entity))
1109 (setq p-end (point-max))
1111 ((null entity-node-id)
1112 (setq p-end (point-max))
1120 (next-single-property-change
1121 (point) 'mime-view-entity))
1123 (let ((rc (mime-entity-node-id
1124 (get-text-property (point)
1125 'mime-view-entity))))
1126 (or (equal entity-node-id
1127 (nthcdr (- (length rc) len) rc))
1132 (setq p-end (point-max))
1135 (let* ((mode (mime-preview-original-major-mode))
1137 (format "%s-%s" (buffer-name) (reverse entity-node-id)))
1139 (the-buf (current-buffer))
1140 (a-buf mime-raw-buffer)
1143 (set-buffer (setq new-buf (get-buffer-create new-name)))
1145 (insert-buffer-substring the-buf p-beg p-end)
1146 (goto-char (point-min))
1147 (let ((entity-node-id (mime-entity-node-id entity)) ci str)
1155 (mime-raw-find-entity-from-node-id entity-node-id))
1158 (mime-entity-point-min ci)
1159 (mime-entity-point-max ci)
1161 (std11-header-string-except
1163 (apply (function regexp-or) fields)
1166 (eq (mime-entity-media-type ci) 'message)
1167 (eq (mime-entity-media-subtype ci) 'rfc822))
1173 (setq fields (std11-collect-field-names)
1174 entity-node-id (cdr entity-node-id))
1177 (let ((rest mime-view-following-required-fields-list))
1179 (let ((field-name (car rest)))
1180 (or (std11-field-body field-name)
1186 (set-buffer the-buf)
1187 (set-buffer mime-mother-buffer)
1188 (set-buffer mime-raw-buffer)
1189 (std11-field-body field-name)
1193 (setq rest (cdr rest))
1195 (eword-decode-header)
1197 (let ((f (cdr (assq mode mime-view-following-method-alist))))
1202 "Sorry, following method for %s is not implemented yet."
1211 (defun mime-preview-display-x-face ()
1213 (save-window-excursion
1214 (set-buffer mime-raw-buffer)
1215 (mime-view-x-face-function)
1222 (defun mime-preview-move-to-upper ()
1223 "Move to upper entity.
1224 If there is no upper entity, call function `mime-preview-quit'."
1227 (while (null (setq cinfo
1228 (get-text-property (point) 'mime-view-entity)))
1231 (let ((r (mime-raw-find-entity-from-node-id
1232 (cdr (mime-entity-node-id cinfo))
1233 (get-text-property 1 'mime-view-entity)))
1236 (while (setq point (previous-single-property-change
1237 (point) 'mime-view-entity))
1239 (if (eq r (get-text-property (point) 'mime-view-entity))
1246 (defun mime-preview-move-to-previous ()
1247 "Move to previous entity.
1248 If there is no previous entity, it calls function registered in
1249 variable `mime-view-over-to-previous-method-alist'."
1251 (while (null (get-text-property (point) 'mime-view-entity))
1254 (let ((point (previous-single-property-change (point) 'mime-view-entity)))
1256 (if (get-text-property (1- point) 'mime-view-entity)
1258 (goto-char (1- point))
1259 (mime-preview-move-to-previous)
1261 (let ((f (assq mime-preview-original-major-mode
1262 mime-view-over-to-previous-method-alist)))
1268 (defun mime-preview-move-to-next ()
1269 "Move to next entity.
1270 If there is no previous entity, it calls function registered in
1271 variable `mime-view-over-to-next-method-alist'."
1273 (while (null (get-text-property (point) 'mime-view-entity))
1276 (let ((point (next-single-property-change (point) 'mime-view-entity)))
1280 (if (null (get-text-property point 'mime-view-entity))
1281 (mime-preview-move-to-next)
1283 (let ((f (assq mime-preview-original-major-mode
1284 mime-view-over-to-next-method-alist)))
1290 (defun mime-preview-scroll-up-entity (&optional h)
1291 "Scroll up current entity.
1292 If reached to (point-max), it calls function registered in variable
1293 `mime-view-over-to-next-method-alist'."
1296 (setq h (1- (window-height)))
1298 (if (= (point) (point-max))
1299 (let ((f (assq mime-preview-original-major-mode
1300 mime-view-over-to-next-method-alist)))
1305 (or (next-single-property-change (point) 'mime-view-entity)
1308 (if (> (point) point)
1313 (defun mime-preview-scroll-down-entity (&optional h)
1314 "Scroll down current entity.
1315 If reached to (point-min), it calls function registered in variable
1316 `mime-view-over-to-previous-method-alist'."
1319 (setq h (1- (window-height)))
1321 (if (= (point) (point-min))
1322 (let ((f (assq mime-preview-original-major-mode
1323 mime-view-over-to-previous-method-alist)))
1332 (previous-single-property-change (point)
1338 (setq point (point-min))
1340 (forward-line (- h))
1341 (if (< (point) point)
1345 (defun mime-preview-next-line-entity ()
1347 (mime-preview-scroll-up-entity 1)
1350 (defun mime-preview-previous-line-entity ()
1352 (mime-preview-scroll-down-entity 1)
1359 (defun mime-preview-quit ()
1360 "Quit from MIME-preview buffer.
1361 It calls function registered in variable
1362 `mime-preview-quitting-method-alist'."
1364 (let ((r (assq mime-preview-original-major-mode
1365 mime-preview-quitting-method-alist)))
1370 (defun mime-preview-show-summary ()
1372 It calls function registered in variable
1373 `mime-view-show-summary-method'."
1375 (let ((r (assq mime-preview-original-major-mode
1376 mime-view-show-summary-method)))
1381 (defun mime-preview-kill-buffer ()
1383 (kill-buffer (current-buffer))
1390 (provide 'mime-view)
1392 (run-hooks 'mime-view-load-hook)
1394 ;;; mime-view.el ends here