1;;; mm-partial.el --- showing message/partial 2 3;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> 7;; Keywords: message partial 8 9;; This file is part of GNU Emacs. 10 11;; GNU Emacs is free software; you can redistribute it and/or modify 12;; it under the terms of the GNU General Public License as published 13;; by the Free Software Foundation; either version 2, or (at your 14;; option) any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, but 17;; WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19;; General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to the 23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24;; Boston, MA 02110-1301, USA. 25 26;;; Commentary: 27 28;;; Code: 29 30(eval-when-compile (require 'cl)) 31 32(require 'gnus-sum) 33(require 'mm-util) 34(require 'mm-decode) 35 36(defun mm-partial-find-parts (id &optional art) 37 (let ((headers (save-excursion 38 (set-buffer gnus-summary-buffer) 39 gnus-newsgroup-headers)) 40 phandles header) 41 (while (setq header (pop headers)) 42 (unless (eq (aref header 0) art) 43 (mm-with-unibyte-buffer 44 (gnus-request-article-this-buffer (aref header 0) 45 gnus-newsgroup-name) 46 (when (search-forward id nil t) 47 (let ((nhandles (mm-dissect-buffer 48 nil gnus-article-loose-mime)) nid) 49 (if (consp (car nhandles)) 50 (mm-destroy-parts nhandles) 51 (setq nid (cdr (assq 'id 52 (cdr (mm-handle-type nhandles))))) 53 (if (not (equal id nid)) 54 (mm-destroy-parts nhandles) 55 (push nhandles phandles)))))))) 56 phandles)) 57 58;;;###autoload 59(defun mm-inline-partial (handle &optional no-display) 60 "Show the partial part of HANDLE. 61This function replaces the buffer of HANDLE with a buffer contains 62the entire message. 63If NO-DISPLAY is nil, display it. Otherwise, do nothing after replacing." 64 (let ((id (cdr (assq 'id (cdr (mm-handle-type handle))))) 65 phandles 66 (b (point)) (n 1) total 67 phandle nn ntotal 68 gnus-displaying-mime handles buffer) 69 (unless (mm-handle-cache handle) 70 (unless id 71 (error "Can not find message/partial id")) 72 (setq phandles 73 (sort (cons handle 74 (mm-partial-find-parts 75 id 76 (save-excursion 77 (set-buffer gnus-summary-buffer) 78 (gnus-summary-article-number)))) 79 #'(lambda (a b) 80 (let ((anumber (string-to-number 81 (cdr (assq 'number 82 (cdr (mm-handle-type a)))))) 83 (bnumber (string-to-number 84 (cdr (assq 'number 85 (cdr (mm-handle-type b))))))) 86 (< anumber bnumber))))) 87 (setq gnus-article-mime-handles 88 (mm-merge-handles gnus-article-mime-handles phandles)) 89 (save-excursion 90 (set-buffer (generate-new-buffer " *mm*")) 91 (while (setq phandle (pop phandles)) 92 (setq nn (string-to-number 93 (cdr (assq 'number 94 (cdr (mm-handle-type phandle)))))) 95 (setq ntotal (string-to-number 96 (cdr (assq 'total 97 (cdr (mm-handle-type phandle)))))) 98 (if ntotal 99 (if total 100 (unless (eq total ntotal) 101 (error "The numbers of total are different")) 102 (setq total ntotal))) 103 (unless (< nn n) 104 (unless (eq nn n) 105 (error "Missing part %d" n)) 106 (mm-insert-part phandle) 107 (goto-char (point-max)) 108 (when (not (eq 0 (skip-chars-backward "\r\n"))) 109 ;; remove tail blank spaces except one 110 (if (looking-at "\r?\n") 111 (goto-char (match-end 0))) 112 (delete-region (point) (point-max))) 113 (setq n (+ n 1)))) 114 (unless total 115 (error "Don't known the total number of")) 116 (if (<= n total) 117 (error "Missing part %d" n)) 118 (kill-buffer (mm-handle-buffer handle)) 119 (goto-char (point-min)) 120 (let ((point (if (search-forward "\n\n" nil t) 121 (1- (point)) 122 (point-max)))) 123 (goto-char (point-min)) 124 (unless (re-search-forward "^mime-version:" point t) 125 (insert "MIME-Version: 1.0\n"))) 126 (setcar handle (current-buffer)) 127 (mm-handle-set-cache handle t))) 128 (unless no-display 129 (save-excursion 130 (save-restriction 131 (narrow-to-region b b) 132 (mm-insert-part handle) 133 (let (gnus-article-mime-handles) 134 (run-hooks 'gnus-article-decode-hook) 135 (gnus-article-prepare-display) 136 (setq handles gnus-article-mime-handles)) 137 (when handles 138 ;; It is in article buffer. 139 (setq gnus-article-mime-handles 140 (mm-merge-handles gnus-article-mime-handles handles))) 141 (mm-handle-set-undisplayer 142 handle 143 `(lambda () 144 (let (buffer-read-only) 145 (condition-case nil 146 ;; This is only valid on XEmacs. 147 (mapcar (lambda (prop) 148 (remove-specifier 149 (face-property 'default prop) (current-buffer))) 150 '(background background-pixmap foreground)) 151 (error nil)) 152 (delete-region ,(point-min-marker) ,(point-max-marker)))))))))) 153 154(provide 'mm-partial) 155 156;;; arch-tag: 460e7424-05f2-4a1d-a0f2-70ec081eff7d 157;;; mm-partial.el ends here 158