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|
;;; mm-view.el --- Functions for viewing MIME objects
;; Copyright (C) 1998,99 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;; Code:
(require 'mail-parse)
(require 'mailcap)
(require 'mm-bodies)
(require 'mm-decode)
(eval-and-compile
(autoload 'gnus-article-prepare-display "gnus-art")
(autoload 'vcard-parse-string "vcard")
(autoload 'vcard-format-string "vcard"))
;; Avoid byte compile warning.
(defvar gnus-article-mime-handles)
;;;
;;; Functions for displaying various formats inline
;;;
(defun mm-inline-image (handle)
(let ((b (point))
(annot (make-annotation (mm-get-image handle) nil 'text))
buffer-read-only)
(insert "\n")
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-annotation ,annot)
(delete-region ,(set-marker (make-marker) b)
,(set-marker (make-marker) (point))))))
(set-extent-property annot 'mm t)
(set-extent-property annot 'duplicable t)))
(defvar mm-w3-setup nil)
(defun mm-setup-w3 ()
(unless mm-w3-setup
(require 'w3)
(w3-do-setup)
(require 'url)
(require 'w3-vars)
(require 'url-vars)
(setq mm-w3-setup t)))
(defun mm-inline-text (handle)
(let ((type (mm-handle-media-subtype handle))
text buffer-read-only)
(cond
((equal type "html")
(mm-setup-w3)
(setq text (mm-get-part handle))
(let ((b (point))
(url-standalone-mode t)
(url-current-object
(url-generic-parse-url (format "cid:%s" (mm-handle-id handle))))
(width (window-width))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset)))
(save-excursion
(insert text)
(save-restriction
(narrow-to-region b (point))
(goto-char (point-min))
(if (or (and (boundp 'w3-meta-content-type-charset-regexp)
(re-search-forward
w3-meta-content-type-charset-regexp nil t))
(and (boundp 'w3-meta-charset-content-type-regexp)
(re-search-forward
w3-meta-charset-content-type-regexp nil t)))
(setq charset (w3-coding-system-for-mime-charset
(buffer-substring-no-properties
(match-beginning 2)
(match-end 2)))))
(delete-region (point-min) (point-max))
(insert (mm-decode-string text charset))
(save-window-excursion
(save-restriction
(let ((w3-strict-width width)
(url-standalone-mode t))
(condition-case var
(w3-region (point-min) (point-max))
(error)))))
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(if (functionp 'remove-specifier)
(mapc (lambda (prop)
(remove-specifier
(face-property 'default prop) (current-buffer)))
'(background background-pixmap foreground)))
(delete-region ,(point-min-marker)
,(point-max-marker)))))))))
((or (equal type "enriched")
(equal type "richtext"))
(save-excursion
(mm-with-unibyte-buffer
(mm-insert-part handle)
(save-window-excursion
(enriched-decode (point-min) (point-max))
(setq text (buffer-string)))))
(mm-insert-inline handle text))
((equal type "x-vcard")
(mm-insert-inline
handle
(concat "\n-- \n"
(vcard-format-string
(vcard-parse-string (mm-get-part handle)
'vcard-standard-filter)))))
(t
(setq text (mm-get-part handle))
(let ((b (point))
(charset (mail-content-type-get
(mm-handle-type handle) 'charset)))
(insert (mm-decode-string text charset))
(save-restriction
(narrow-to-region b (point))
(set-text-properties (point-min) (point-max) nil)
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-region ,(point-min-marker)
,(point-max-marker)))))))))))
(defun mm-insert-inline (handle text)
"Insert TEXT inline from HANDLE."
(let ((b (point)))
(insert text)
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(delete-region ,(set-marker (make-marker) b)
,(set-marker (make-marker) (point))))))))
(defun mm-inline-audio (handle)
(message "Not implemented"))
(defun mm-view-sound-file ()
(message "Not implemented"))
(defun mm-w3-prepare-buffer ()
(require 'w3)
(let ((url-standalone-mode t))
(w3-prepare-buffer)))
(defun mm-view-message ()
(mm-enable-multibyte)
(gnus-article-prepare-display)
(run-hooks 'gnus-article-decode-hook)
(fundamental-mode)
(goto-char (point-min)))
(defun mm-inline-message (handle)
(let ((b (point))
gnus-displaying-mime handles)
(save-excursion
(save-restriction
(narrow-to-region b b)
(mm-insert-part handle)
(let (gnus-article-mime-handles)
(run-hooks 'gnus-article-decode-hook)
(gnus-article-prepare-display)
(setq handles gnus-article-mime-handles))
(when handles
(setq gnus-article-mime-handles
(nconc gnus-article-mime-handles
(if (listp (car handles))
handles (list handles)))))
(mm-handle-set-undisplayer
handle
`(lambda ()
(let (buffer-read-only)
(ignore-errors
;; This is only valid on XEmacs.
(mapc (lambda (prop)
(remove-specifier
(face-property 'default prop) (current-buffer)))
'(background background-pixmap foreground)))
(delete-region ,(point-min-marker) ,(point-max-marker)))))))))
(provide 'mm-view)
;; mm-view.el ends here
|
