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-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 or click here by mouse button-2."
481 This is message/partial style split message.
482 Please press `v' key in this buffer."
485 (defun mime-preview-message/partial-button (&optional entity situation)
487 (goto-char (point-max))
488 (if (not (search-backward "\n\n" nil t))
491 (goto-char (point-max))
492 ;;(narrow-to-region (point-max)(point-max))
493 ;;(insert mime-view-announcement-for-message/partial)
494 ;; (mime-add-button (point-min)(point-max)
495 ;; #'mime-preview-play-current-entity)
496 (mime-insert-button mime-view-announcement-for-message/partial
497 #'mime-preview-play-current-entity)
501 ;;; @ acting-condition
504 (defvar mime-acting-condition nil
505 "Condition-tree about how to process entity.")
507 (if (file-readable-p mailcap-file)
508 (let ((entries (mailcap-parse-file)))
510 (let ((entry (car entries))
513 (let* ((field (car entry))
514 (field-type (car field)))
515 (cond ((eq field-type 'view) (setq view field))
516 ((eq field-type 'print) (setq print field))
517 ((memq field-type '(compose composetyped edit)))
518 (t (setq shared (cons field shared))))
520 (setq entry (cdr entry))
522 (setq shared (nreverse shared))
523 (ctree-set-calist-with-default
524 'mime-acting-condition
525 (append shared (list '(mode . "play")(cons 'method (cdr view)))))
527 (ctree-set-calist-with-default
528 'mime-acting-condition
530 (list '(mode . "print")(cons 'method (cdr view))))
533 (setq entries (cdr entries))
536 ;; (ctree-set-calist-strictly
537 ;; 'mime-acting-condition
538 ;; '((type . t)(subtype . t)(mode . "extract")
539 ;; (method . mime-method-to-save)))
540 (ctree-set-calist-with-default
541 'mime-acting-condition
543 (method . mime-method-to-save)))
545 ;; (ctree-set-calist-strictly
546 ;; 'mime-acting-condition
547 ;; '((type . text)(subtype . plain)(mode . "play")
548 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
550 ;; (ctree-set-calist-strictly
551 ;; 'mime-acting-condition
552 ;; '((type . text)(subtype . plain)(mode . "print")
553 ;; (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
555 ;; (ctree-set-calist-strictly
556 ;; 'mime-acting-condition
557 ;; '((type . text)(subtype . html)(mode . "play")
558 ;; (method "tm-html" nil 'file "" 'encoding 'mode 'name)
560 (ctree-set-calist-strictly
561 'mime-acting-condition
562 '((type . text)(subtype . x-rot13-47)(mode . "play")
563 (method . mime-method-to-display-caesar)
565 (ctree-set-calist-strictly
566 'mime-acting-condition
567 '((type . text)(subtype . x-rot13-47-48)(mode . "play")
568 (method . mime-method-to-display-caesar)
571 ;; (ctree-set-calist-strictly
572 ;; 'mime-acting-condition
573 ;; '((type . audio)(subtype . basic)(mode . "play")
574 ;; (method "tm-au" nil 'file "" 'encoding 'mode 'name)
577 ;; (ctree-set-calist-strictly
578 ;; 'mime-acting-condition
579 ;; '((type . image)(mode . "play")
580 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
582 ;; (ctree-set-calist-strictly
583 ;; 'mime-acting-condition
584 ;; '((type . image)(mode . "print")
585 ;; (method "tm-image" nil 'file "" 'encoding 'mode 'name)
588 ;; (ctree-set-calist-strictly
589 ;; 'mime-acting-condition
590 ;; '((type . video)(subtype . mpeg)(mode . "play")
591 ;; (method "tm-mpeg" nil 'file "" 'encoding 'mode 'name)
594 ;; (ctree-set-calist-strictly
595 ;; 'mime-acting-condition
596 ;; '((type . application)(subtype . postscript)(mode . "play")
597 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
599 ;; (ctree-set-calist-strictly
600 ;; 'mime-acting-condition
601 ;; '((type . application)(subtype . postscript)(mode . "print")
602 ;; (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
605 (ctree-set-calist-strictly
606 'mime-acting-condition
607 '((type . message)(subtype . rfc822)(mode . "play")
608 (method . mime-method-to-display-message/rfc822)
610 (ctree-set-calist-strictly
611 'mime-acting-condition
612 '((type . message)(subtype . partial)(mode . "play")
613 (method . mime-method-to-store-message/partial)
616 (ctree-set-calist-strictly
617 'mime-acting-condition
618 '((type . message)(subtype . external-body)
619 ("access-type" . "anon-ftp")
620 (method . mime-method-to-display-message/external-ftp)
623 (ctree-set-calist-strictly
624 'mime-acting-condition
625 '((type . application)(subtype . octet-stream)
626 (method . mime-method-to-save)
630 ;;; @ quitting method
633 (defvar mime-preview-quitting-method-alist
634 '((mime-show-message-mode
635 . mime-preview-quitting-method-for-mime-show-message-mode))
636 "Alist of major-mode vs. quitting-method of mime-view.")
638 (defvar mime-view-over-to-previous-method-alist nil)
639 (defvar mime-view-over-to-next-method-alist nil)
641 (defvar mime-view-show-summary-method nil
642 "Alist of major-mode vs. show-summary-method.")
645 ;;; @ following method
648 (defvar mime-view-following-method-alist nil
649 "Alist of major-mode vs. following-method of mime-view.")
651 (defvar mime-view-following-required-fields-list
658 ;; hack from Gnus 5.0.4.
660 (defvar mime-view-x-face-to-pbm-command
661 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
663 (defvar mime-view-x-face-command
664 (concat mime-view-x-face-to-pbm-command
666 "String to be executed to display an X-Face field.
667 The command will be executed in a sub-shell asynchronously.
668 The compressed face will be piped to this command.")
670 (defun mime-view-x-face-function ()
671 "Function to display X-Face field. You can redefine to customize."
672 ;; 1995/10/12 (c.f. tm-eng:130)
673 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
675 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
677 (goto-char (point-min))
678 (if (re-search-forward "^X-Face:[ \t]*" nil t)
679 (let ((beg (match-end 0))
680 (end (std11-field-end))
682 (call-process-region beg end "sh" nil 0 nil
683 "-c" mime-view-x-face-command)
690 (defvar mime-view-uuencode-encoding-name-list '("x-uue" "x-uuencode"))
696 (defvar mime-view-redisplay nil)
698 (defun mime-view-setup-buffers (&optional ctl encoding ibuf obuf)
704 (or mime-view-redisplay
705 (setq mime-raw-message-info (mime-parse-message ctl encoding))
707 (let ((message-info mime-raw-message-info)
708 (the-buf (current-buffer))
711 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
712 (set-buffer (get-buffer-create obuf))
713 (let ((inhibit-read-only t))
714 ;;(setq buffer-read-only nil)
717 (setq mime-raw-buffer the-buf)
718 (setq mime-preview-original-major-mode mode)
719 (setq major-mode 'mime-view-mode)
720 (setq mode-name "MIME-View")
721 (mime-view-display-entity message-info message-info
723 '((entity-button . invisible)
726 (set-buffer-modified-p nil)
728 (setq buffer-read-only t)
731 (setq mime-preview-buffer obuf)
734 (defun mime-view-display-entity (entity message-info ibuf obuf
736 (let* ((start (mime-entity-point-min entity))
737 (end (mime-entity-point-max entity))
738 (content-type (mime-entity-content-type entity))
739 (encoding (mime-entity-encoding entity))
740 end-of-header e nb ne subj)
743 (setq end-of-header (if (re-search-forward "^$" nil t)
746 (if (> end-of-header end)
747 (setq end-of-header end)
750 (narrow-to-region start end)
751 (setq subj (eword-decode-string (mime-raw-get-subject entity)))
755 (ctree-match-calist mime-preview-condition
758 (make-mime-content-type 'text 'plain))
759 (list* (cons 'encoding encoding)
760 (cons 'major-mode major-mode)
764 (eq (cdr (assq 'entity-button situation)) 'invisible))
766 (eq (cdr (assq 'header situation)) 'visible))
767 (body-presentation-method
768 (cdr (assq 'body-presentation-method situation))))
771 (narrow-to-region nb nb)
772 (or button-is-invisible
773 (if (mime-view-entity-button-visible-p entity message-info)
774 (mime-view-insert-entity-button entity message-info subj)
776 (if header-is-visible
778 (narrow-to-region (point)(point))
779 (insert-buffer-substring mime-raw-buffer start end-of-header)
780 (let ((f (cdr (assq mime-preview-original-major-mode
781 mime-view-content-header-filter-alist))))
784 (mime-view-default-content-header-filter)
786 (run-hooks 'mime-view-content-header-filter-hook)
788 (cond ((eq body-presentation-method 'with-filter)
789 (let ((body-filter (cdr (assq 'body-filter situation))))
791 (narrow-to-region (point-max)(point-max))
792 (insert-buffer-substring mime-raw-buffer end-of-header end)
793 (funcall body-filter situation)
795 ((functionp body-presentation-method)
796 (funcall body-presentation-method entity situation)
798 (or header-is-visible
799 body-presentation-method
801 (goto-char (point-max))
804 (setq ne (point-max))
806 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
807 (put-text-property nb ne 'mime-view-entity entity)
809 (let ((children (mime-entity-children entity))
811 (cdr (assq 'childrens-situation situation))))
813 (mime-view-display-entity (car children) message-info ibuf obuf
815 (setq children (cdr children))
818 (defun mime-raw-get-uu-filename ()
820 (if (re-search-forward "^begin [0-9]+ " nil t)
821 (if (looking-at ".+$")
822 (buffer-substring (match-beginning 0)(match-end 0))
825 (defun mime-raw-get-subject (entity)
826 (or (std11-find-field-body '("Content-Description" "Subject"))
827 (let ((ret (mime-entity-content-disposition entity)))
829 (setq ret (mime-content-disposition-filename ret))
830 (std11-strip-quoted-string ret)
832 (let ((ret (mime-entity-content-type entity)))
836 (let ((param (mime-content-type-parameters ret)))
837 (or (assoc "name" param)
838 (assoc "x-name" param))
840 (std11-strip-quoted-string ret)
842 (if (member (mime-entity-encoding entity)
843 mime-view-uuencode-encoding-name-list)
844 (mime-raw-get-uu-filename))
848 ;;; @ MIME viewer mode
851 (defconst mime-view-menu-title "MIME-View")
852 (defconst mime-view-menu-list
853 '((up "Move to upper entity" mime-preview-move-to-upper)
854 (previous "Move to previous entity" mime-preview-move-to-previous)
855 (next "Move to next entity" mime-preview-move-to-next)
856 (scroll-down "Scroll-down" mime-preview-scroll-down-entity)
857 (scroll-up "Scroll-up" mime-preview-scroll-up-entity)
858 (play "Play current entity" mime-preview-play-current-entity)
859 (extract "Extract current entity" mime-preview-extract-current-entity)
860 (print "Print current entity" mime-preview-print-current-entity)
861 (x-face "Show X Face" mime-preview-display-x-face)
863 "Menu for MIME Viewer")
865 (cond (running-xemacs
866 (defvar mime-view-xemacs-popup-menu
867 (cons mime-view-menu-title
870 (vector (nth 1 item)(nth 2 item) t)
872 mime-view-menu-list)))
873 (defun mime-view-xemacs-popup-menu (event)
874 "Popup the menu in the MIME Viewer buffer"
876 (select-window (event-window event))
877 (set-buffer (event-buffer event))
878 (popup-menu 'mime-view-xemacs-popup-menu))
879 (defvar mouse-button-2 'button2)
882 (defvar mouse-button-2 [mouse-2])
885 (defun mime-view-define-keymap (&optional default)
886 (let ((mime-view-mode-map (if (keymapp default)
887 (copy-keymap default)
890 (define-key mime-view-mode-map
891 "u" (function mime-preview-move-to-upper))
892 (define-key mime-view-mode-map
893 "p" (function mime-preview-move-to-previous))
894 (define-key mime-view-mode-map
895 "n" (function mime-preview-move-to-next))
896 (define-key mime-view-mode-map
897 "\e\t" (function mime-preview-move-to-previous))
898 (define-key mime-view-mode-map
899 "\t" (function mime-preview-move-to-next))
900 (define-key mime-view-mode-map
901 " " (function mime-preview-scroll-up-entity))
902 (define-key mime-view-mode-map
903 "\M- " (function mime-preview-scroll-down-entity))
904 (define-key mime-view-mode-map
905 "\177" (function mime-preview-scroll-down-entity))
906 (define-key mime-view-mode-map
907 "\C-m" (function mime-preview-next-line-entity))
908 (define-key mime-view-mode-map
909 "\C-\M-m" (function mime-preview-previous-line-entity))
910 (define-key mime-view-mode-map
911 "v" (function mime-preview-play-current-entity))
912 (define-key mime-view-mode-map
913 "e" (function mime-preview-extract-current-entity))
914 (define-key mime-view-mode-map
915 "\C-c\C-p" (function mime-preview-print-current-entity))
916 (define-key mime-view-mode-map
917 "a" (function mime-preview-follow-current-entity))
918 (define-key mime-view-mode-map
919 "q" (function mime-preview-quit))
920 (define-key mime-view-mode-map
921 "h" (function mime-preview-show-summary))
922 (define-key mime-view-mode-map
923 "\C-c\C-x" (function mime-preview-kill-buffer))
924 ;; (define-key mime-view-mode-map
925 ;; "<" (function beginning-of-buffer))
926 ;; (define-key mime-view-mode-map
927 ;; ">" (function end-of-buffer))
928 (define-key mime-view-mode-map
929 "?" (function describe-mode))
930 (define-key mime-view-mode-map
931 [tab] (function mime-preview-move-to-next))
932 (define-key mime-view-mode-map
933 [delete] (function mime-preview-scroll-down-entity))
934 (define-key mime-view-mode-map
935 [backspace] (function mime-preview-scroll-down-entity))
936 (if (functionp default)
937 (cond (running-xemacs
938 (set-keymap-default-binding mime-view-mode-map default)
941 (setq mime-view-mode-map
942 (append mime-view-mode-map (list (cons t default))))
945 (define-key mime-view-mode-map
946 mouse-button-2 (function mime-button-dispatcher))
948 (cond (running-xemacs
949 (define-key mime-view-mode-map
950 mouse-button-3 (function mime-view-xemacs-popup-menu))
952 ((>= emacs-major-version 19)
953 (define-key mime-view-mode-map [menu-bar mime-view]
954 (cons mime-view-menu-title
955 (make-sparse-keymap mime-view-menu-title)))
958 (define-key mime-view-mode-map
959 (vector 'menu-bar 'mime-view (car item))
960 (cons (nth 1 item)(nth 2 item))
963 (reverse mime-view-menu-list)
966 (use-local-map mime-view-mode-map)
967 (run-hooks 'mime-view-define-keymap-hook)
970 (defsubst mime-maybe-hide-echo-buffer ()
971 "Clear mime-echo buffer and delete window for it."
972 (let ((buf (get-buffer mime-echo-buffer-name)))
977 (let ((win (get-buffer-window buf)))
984 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
985 default-keymap-or-function)
986 "Major mode for viewing MIME message.
988 Here is a list of the standard keys for mime-view-mode.
993 u Move to upper content
994 p or M-TAB Move to previous content
995 n or TAB Move to next content
996 SPC Scroll up or move to next content
997 M-SPC or DEL Scroll down or move to previous content
998 RET Move to next line
999 M-RET Move to previous line
1000 v Decode current content as `play mode'
1001 e Decode current content as `extract mode'
1002 C-c C-p Decode current content as `print mode'
1003 a Followup to current content.
1006 button-2 Move to point under the mouse cursor
1007 and decode current content as `play mode'
1010 (mime-maybe-hide-echo-buffer)
1011 (let ((ret (mime-view-setup-buffers ctl encoding ibuf obuf))
1012 (win-conf (current-window-configuration))
1015 (switch-to-buffer ret)
1016 (setq mime-preview-original-window-configuration win-conf)
1019 (setq mime-mother-buffer mother)
1021 (mime-view-define-keymap default-keymap-or-function)
1023 (next-single-property-change (point-min) 'mime-view-entity)))
1026 (goto-char (point-min))
1027 (search-forward "\n\n" nil t)
1029 (run-hooks 'mime-view-mode-hook)
1036 (autoload 'mime-preview-play-current-entity "mime-play"
1037 "Play current entity." t)
1039 (defun mime-preview-extract-current-entity ()
1040 "Extract current entity into file (maybe).
1041 It decodes current entity to call internal or external method as
1042 \"extract\" mode. The method is selected from variable
1043 `mime-acting-condition'."
1045 (mime-preview-play-current-entity "extract")
1048 (defun mime-preview-print-current-entity ()
1049 "Print current entity (maybe).
1050 It decodes current entity to call internal or external method as
1051 \"print\" mode. The method is selected from variable
1052 `mime-acting-condition'."
1054 (mime-preview-play-current-entity "print")
1061 (defun mime-preview-original-major-mode ()
1062 "Return major-mode of original buffer.
1063 If a current buffer has mime-mother-buffer, return original major-mode
1064 of the mother-buffer."
1065 (if mime-mother-buffer
1067 (set-buffer mime-mother-buffer)
1068 (mime-preview-original-major-mode)
1070 mime-preview-original-major-mode))
1072 (defun mime-preview-follow-current-entity ()
1073 "Write follow message to current entity.
1074 It calls following-method selected from variable
1075 `mime-view-following-method-alist'."
1078 (while (null (setq entity
1079 (get-text-property (point) 'mime-view-entity)))
1083 (previous-single-property-change (point) 'mime-view-entity))
1085 (entity-node-id (mime-entity-node-id entity))
1086 (len (length entity-node-id))
1090 (if (eq (next-single-property-change (point-min)
1096 ((eq (next-single-property-change p-beg 'mime-view-entity)
1098 (setq p-beg (point))
1100 (setq p-end (next-single-property-change p-beg 'mime-view-entity))
1102 (setq p-end (point-max))
1104 ((null entity-node-id)
1105 (setq p-end (point-max))
1113 (next-single-property-change
1114 (point) 'mime-view-entity))
1116 (let ((rc (mime-entity-node-id
1117 (get-text-property (point)
1118 'mime-view-entity))))
1119 (or (equal entity-node-id
1120 (nthcdr (- (length rc) len) rc))
1125 (setq p-end (point-max))
1128 (let* ((mode (mime-preview-original-major-mode))
1130 (format "%s-%s" (buffer-name) (reverse entity-node-id)))
1132 (the-buf (current-buffer))
1133 (a-buf mime-raw-buffer)
1136 (set-buffer (setq new-buf (get-buffer-create new-name)))
1138 (insert-buffer-substring the-buf p-beg p-end)
1139 (goto-char (point-min))
1140 (let ((entity-node-id (mime-entity-node-id entity)) ci str)
1148 (mime-raw-find-entity-from-node-id entity-node-id))
1151 (mime-entity-point-min ci)
1152 (mime-entity-point-max ci)
1154 (std11-header-string-except
1156 (apply (function regexp-or) fields)
1159 (eq (mime-entity-media-type ci) 'message)
1160 (eq (mime-entity-media-subtype ci) 'rfc822))
1166 (setq fields (std11-collect-field-names)
1167 entity-node-id (cdr entity-node-id))
1170 (let ((rest mime-view-following-required-fields-list))
1172 (let ((field-name (car rest)))
1173 (or (std11-field-body field-name)
1179 (set-buffer the-buf)
1180 (set-buffer mime-mother-buffer)
1181 (set-buffer mime-raw-buffer)
1182 (std11-field-body field-name)
1186 (setq rest (cdr rest))
1188 (eword-decode-header)
1190 (let ((f (cdr (assq mode mime-view-following-method-alist))))
1195 "Sorry, following method for %s is not implemented yet."
1204 (defun mime-preview-display-x-face ()
1206 (save-window-excursion
1207 (set-buffer mime-raw-buffer)
1208 (mime-view-x-face-function)
1215 (defun mime-preview-move-to-upper ()
1216 "Move to upper entity.
1217 If there is no upper entity, call function `mime-preview-quit'."
1220 (while (null (setq cinfo
1221 (get-text-property (point) 'mime-view-entity)))
1224 (let ((r (mime-raw-find-entity-from-node-id
1225 (cdr (mime-entity-node-id cinfo))
1226 (get-text-property 1 'mime-view-entity)))
1229 (while (setq point (previous-single-property-change
1230 (point) 'mime-view-entity))
1232 (if (eq r (get-text-property (point) 'mime-view-entity))
1239 (defun mime-preview-move-to-previous ()
1240 "Move to previous entity.
1241 If there is no previous entity, it calls function registered in
1242 variable `mime-view-over-to-previous-method-alist'."
1244 (while (null (get-text-property (point) 'mime-view-entity))
1247 (let ((point (previous-single-property-change (point) 'mime-view-entity)))
1249 (if (get-text-property (1- point) 'mime-view-entity)
1251 (goto-char (1- point))
1252 (mime-preview-move-to-previous)
1254 (let ((f (assq mime-preview-original-major-mode
1255 mime-view-over-to-previous-method-alist)))
1261 (defun mime-preview-move-to-next ()
1262 "Move to next entity.
1263 If there is no previous entity, it calls function registered in
1264 variable `mime-view-over-to-next-method-alist'."
1266 (while (null (get-text-property (point) 'mime-view-entity))
1269 (let ((point (next-single-property-change (point) 'mime-view-entity)))
1273 (if (null (get-text-property point 'mime-view-entity))
1274 (mime-preview-move-to-next)
1276 (let ((f (assq mime-preview-original-major-mode
1277 mime-view-over-to-next-method-alist)))
1283 (defun mime-preview-scroll-up-entity (&optional h)
1284 "Scroll up current entity.
1285 If reached to (point-max), it calls function registered in variable
1286 `mime-view-over-to-next-method-alist'."
1289 (setq h (1- (window-height)))
1291 (if (= (point) (point-max))
1292 (let ((f (assq mime-preview-original-major-mode
1293 mime-view-over-to-next-method-alist)))
1298 (or (next-single-property-change (point) 'mime-view-entity)
1301 (if (> (point) point)
1306 (defun mime-preview-scroll-down-entity (&optional h)
1307 "Scroll down current entity.
1308 If reached to (point-min), it calls function registered in variable
1309 `mime-view-over-to-previous-method-alist'."
1312 (setq h (1- (window-height)))
1314 (if (= (point) (point-min))
1315 (let ((f (assq mime-preview-original-major-mode
1316 mime-view-over-to-previous-method-alist)))
1325 (previous-single-property-change (point)
1331 (setq point (point-min))
1333 (forward-line (- h))
1334 (if (< (point) point)
1338 (defun mime-preview-next-line-entity ()
1340 (mime-preview-scroll-up-entity 1)
1343 (defun mime-preview-previous-line-entity ()
1345 (mime-preview-scroll-down-entity 1)
1352 (defun mime-preview-quit ()
1353 "Quit from MIME-preview buffer.
1354 It calls function registered in variable
1355 `mime-preview-quitting-method-alist'."
1357 (let ((r (assq mime-preview-original-major-mode
1358 mime-preview-quitting-method-alist)))
1363 (defun mime-preview-show-summary ()
1365 It calls function registered in variable
1366 `mime-view-show-summary-method'."
1368 (let ((r (assq mime-preview-original-major-mode
1369 mime-view-show-summary-method)))
1374 (defun mime-preview-kill-buffer ()
1376 (kill-buffer (current-buffer))
1383 (provide 'mime-view)
1385 (run-hooks 'mime-view-load-hook)
1387 ;;; mime-view.el ends here