;;; mime-w3m.el --- mime-view content filter for text ;; Copyright (C) 2001, 2002, 2003 TSUCHIYA Masatoshi ;; Author: TSUCHIYA Masatoshi , ;; Akihiro Arisawa ;; Keywords: HTML, MIME, multimedia, mail, news ;; This file is *NOT* yet part of SEMI (Suite of Emacs MIME Interfaces). ;; This program 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. ;; This program 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 this program; if not, you can either send email to this ;; program's maintainer or write to: The Free Software Foundation, ;; Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA. ;;; Install: ;; (1) Install SEMI. ;; (2) Put this file to appropriate directory. ;; (3) Write these following code to your ~/.emacs or ~/.gnus. ;; ;; (require 'mime-w3m) ;;; Code: (eval-when-compile (require 'cl) (require 'w3m) (require 'mime) (defvar mime-setup-enable-inline-html) (defvar mime-preview-condition) (defvar mime-view-mode-default-map)) (eval-and-compile (when (featurep 'xemacs) (require 'font))) (defcustom mime-w3m-display-inline-images 'default "*Non-nil means that inline images are displayed. When this option is equal to `default', `w3m-default-display-inline-images' is refered instead of this option, to decide whether inline images are displayed." :group 'w3m :group 'mime-view :type 'boolean) (defcustom mime-w3m-safe-url-regexp "\\`cid:" "*Regexp that matches safe url names. Some HTML mails might have the trick of spammers using tags. It is likely to be intended to verify whether you have read the mail. You can prevent your personal informations from leaking by setting this to the regexp which matches the safe url names. The value of the variable `w3m-safe-url-regexp' will be bound with this value. You may set this value to nil if you consider all the urls to be safe." :group 'mime-w3m :type '(choice (regexp :tag "Regexp") (const :tag "All URLs are safe" nil))) (defcustom mime-w3m-setup-hook nil "*Hook run at the end of function `mime-w3m-setup'." :group 'mime-w3m :type 'hook) (defvar mime-w3m-message-structure nil) (make-variable-buffer-local 'mime-w3m-message-structure) (defun mime-w3m-insinuate () "Insinuate `mime-w3m' module to SEMI." (setq mime-setup-enable-inline-html nil) (let (flag) (when (boundp 'mime-preview-condition) (labels ((overwrite (x) (if (symbolp x) (if (eq x 'mime-preview-text/html) (setq flag 'mime-w3m-preview-text/html) (when (eq x 'mime-w3m-preview-text/html) (setq flag t)) x) (if (consp x) (cons (overwrite (car x)) (overwrite (cdr x))) x)))) (setq mime-preview-condition (overwrite mime-preview-condition)))) (unless flag (eval-after-load "mime-view" '(progn (ctree-set-calist-strictly 'mime-preview-condition '((type . text) (subtype . html) (body . visible) (body-presentation-method . mime-w3m-preview-text/html))) (set-alist 'mime-view-type-subtype-score-alist '(text . html) 3)))))) (defsubst mime-w3m-setup () "Setup `mime-w3m' module." (require 'w3m) (when (eq mime-w3m-display-inline-images 'default) (setq mime-w3m-display-inline-images w3m-default-display-inline-images)) (unless (assq 'mime-view-mode w3m-cid-retrieve-function-alist) (push (cons 'mime-view-mode 'mime-w3m-cid-retrieve) w3m-cid-retrieve-function-alist)) (run-hooks 'mime-w3m-setup-hook)) (def-edebug-spec mime-w3m-save-background-color t) (defmacro mime-w3m-save-background-color (&rest body) (if (featurep 'xemacs) `(let ((color (color-name (face-background 'default)))) (prog1 (progn ,@body) (font-set-face-background 'default color (current-buffer)))) (cons 'progn body))) (unless (or (featurep 'xemacs) (>= emacs-major-version 21)) (defvar mime-w3m-mode-map nil "Keymap for text/html part rendered by `mime-w3m-preview-text/html'. This map is overwritten by `mime-w3m-local-map-property' based on the value of `w3m-minor-mode-map'. Therefore, in order to add some commands to this map, add them to `w3m-minor-mode-map' instead of this map.")) (eval-when-compile (defvar mime-w3m-mode-map)) (defsubst mime-w3m-local-map-property () (if (or (featurep 'xemacs) (>= emacs-major-version 21)) (list 'keymap w3m-minor-mode-map) (list 'local-map (or mime-w3m-mode-map (progn (setq mime-w3m-mode-map (copy-keymap w3m-minor-mode-map)) (set-keymap-parent mime-w3m-mode-map mime-view-mode-default-map) mime-w3m-mode-map))))) ;;;###autoload (defun mime-w3m-preview-text/html (entity situation) (mime-w3m-setup) (setq mime-w3m-message-structure (mime-find-root-entity entity)) (let ((p (point)) (xref (or (mime-entity-fetch-field entity "xref") (mime-entity-fetch-field mime-w3m-message-structure "xref")))) (goto-char p) (insert "\n") (goto-char p) (mime-w3m-save-background-color (save-restriction (narrow-to-region p p) (mime-insert-text-content entity) (run-hooks 'mime-text-decode-hook) (condition-case err (let ((w3m-safe-url-regexp mime-w3m-safe-url-regexp) (w3m-display-inline-images mime-w3m-display-inline-images) w3m-force-redisplay) (w3m-region p (point-max) (and (stringp xref) (string-match "\\`http://" xref) xref)) (add-text-properties p (point-max) (nconc (mime-w3m-local-map-property) '(text-rendered-by-mime-w3m t)))) (error (message "%s" err))))))) ;; To avoid byte-compile warning in `mime-w3m-cid-retrieve'. (autoload 'mime-uri-parse-cid "mime-parse") (defun mime-w3m-cid-retrieve (url &rest args) (let ((entity (mime-find-entity-from-content-id (mime-uri-parse-cid url) (with-current-buffer w3m-current-buffer mime-w3m-message-structure)))) (when entity ;; `mime-decode-string' should be performed in a unibyte buffer. (w3m-insert-string (mime-entity-content entity)) (mime-entity-type/subtype entity)))) (let (current-load-list) (defadvice kill-new (before strip-keymap-properties-from-kill activate) "Advised by emacs-w3m. Strip `keymap' or `local-map' properties from a killed string." (if (text-property-any 0 (length (ad-get-arg 0)) 'text-rendered-by-mime-w3m t (ad-get-arg 0)) (remove-text-properties 0 (length (ad-get-arg 0)) '(keymap nil local-map nil) (ad-get-arg 0))))) (mime-w3m-insinuate) (provide 'mime-w3m) ;;; mime-w3m.el ends here