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c113de23 GM |
1 | ;;; mm-partial.el --- showing message/partial |
2 | ;; Copyright (C) 2000 Free Software Foundation, Inc. | |
3 | ||
4 | ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> | |
5 | ;; Keywords: message partial | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published | |
11 | ;; by the Free Software Foundation; either version 2, or (at your | |
12 | ;; option) any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, but | |
15 | ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | ;; General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
23 | ||
24 | ;;; Commentary: | |
25 | ||
26 | ;;; Code: | |
27 | ||
28 | (eval-when-compile | |
29 | (require 'cl)) | |
30 | ||
31 | (require 'gnus-sum) | |
32 | (require 'mm-util) | |
33 | (require 'mm-decode) | |
34 | ||
35 | (defun mm-partial-find-parts (id &optional art) | |
36 | (let ((headers (save-excursion | |
37 | (set-buffer gnus-summary-buffer) | |
38 | gnus-newsgroup-headers)) | |
39 | phandles header) | |
40 | (while (setq header (pop headers)) | |
41 | (unless (eq (aref header 0) art) | |
42 | (mm-with-unibyte-buffer | |
43 | (gnus-request-article-this-buffer (aref header 0) | |
44 | gnus-newsgroup-name) | |
45 | (when (search-forward id nil t) | |
46 | (let ((nhandles (mm-dissect-buffer)) nid) | |
47 | (if (consp (car nhandles)) | |
48 | (mm-destroy-parts nhandles) | |
49 | (setq nid (cdr (assq 'id | |
50 | (cdr (mm-handle-type nhandles))))) | |
51 | (if (not (equal id nid)) | |
52 | (mm-destroy-parts nhandles) | |
53 | (push nhandles phandles)))))))) | |
54 | phandles)) | |
55 | ||
56 | ;;;###autoload | |
57 | (defun mm-inline-partial (handle &optional no-display) | |
58 | "Show the partial part of HANDLE. | |
59 | This function replaces the buffer of HANDLE with a buffer contains | |
60 | the entire message. | |
61 | If NO-DISPLAY is nil, display it. Otherwise, do nothing after replacing." | |
62 | (let ((id (cdr (assq 'id (cdr (mm-handle-type handle))))) | |
63 | phandles | |
64 | (b (point)) (n 1) total | |
65 | phandle nn ntotal | |
66 | gnus-displaying-mime handles buffer) | |
67 | (unless (mm-handle-cache handle) | |
68 | (unless id | |
69 | (error "Can not find message/partial id.")) | |
70 | (setq phandles | |
71 | (sort (cons handle | |
72 | (mm-partial-find-parts | |
73 | id | |
74 | (save-excursion | |
75 | (set-buffer gnus-summary-buffer) | |
76 | (gnus-summary-article-number)))) | |
77 | #'(lambda (a b) | |
78 | (let ((anumber (string-to-number | |
79 | (cdr (assq 'number | |
80 | (cdr (mm-handle-type a)))))) | |
81 | (bnumber (string-to-number | |
82 | (cdr (assq 'number | |
83 | (cdr (mm-handle-type b))))))) | |
84 | (< anumber bnumber))))) | |
85 | (setq gnus-article-mime-handles | |
86 | (append (if (listp (car gnus-article-mime-handles)) | |
87 | gnus-article-mime-handles | |
88 | (list gnus-article-mime-handles)) | |
89 | phandles)) | |
90 | (save-excursion | |
91 | (set-buffer (generate-new-buffer "*mm*")) | |
92 | (while (setq phandle (pop phandles)) | |
93 | (setq nn (string-to-number | |
94 | (cdr (assq 'number | |
95 | (cdr (mm-handle-type phandle)))))) | |
96 | (setq ntotal (string-to-number | |
97 | (cdr (assq 'total | |
98 | (cdr (mm-handle-type phandle)))))) | |
99 | (if ntotal | |
100 | (if total | |
101 | (unless (eq total ntotal) | |
102 | (error "The numbers of total are different.")) | |
103 | (setq total ntotal))) | |
104 | (unless (< nn n) | |
105 | (unless (eq nn n) | |
106 | (error "Missing part %d" n)) | |
107 | (mm-insert-part phandle) | |
108 | (goto-char (point-max)) | |
109 | (when (not (eq 0 (skip-chars-backward "\r\n"))) | |
110 | ;; remove tail blank spaces except one | |
111 | (if (looking-at "\r?\n") | |
112 | (goto-char (match-end 0))) | |
113 | (delete-region (point) (point-max))) | |
114 | (setq n (+ n 1)))) | |
115 | (unless total | |
116 | (error "Don't known the total number of")) | |
117 | (if (<= n total) | |
118 | (error "Missing part %d" n)) | |
119 | (kill-buffer (mm-handle-buffer handle)) | |
120 | (setcar handle (current-buffer)) | |
121 | (mm-handle-set-cache handle t))) | |
122 | (unless no-display | |
123 | (save-excursion | |
124 | (save-restriction | |
125 | (narrow-to-region b b) | |
126 | (mm-insert-part handle) | |
127 | (let (gnus-article-mime-handles) | |
128 | (run-hooks 'gnus-article-decode-hook) | |
129 | (gnus-article-prepare-display) | |
130 | (setq handles gnus-article-mime-handles)) | |
131 | (when handles | |
132 | ;; It is in article buffer. | |
133 | (setq gnus-article-mime-handles | |
134 | (nconc (if (listp (car gnus-article-mime-handles)) | |
135 | gnus-article-mime-handles | |
136 | (list gnus-article-mime-handles)) | |
137 | (if (listp (car handles)) | |
138 | handles (list handles))))) | |
139 | (mm-handle-set-undisplayer | |
140 | handle | |
141 | `(lambda () | |
142 | (let (buffer-read-only) | |
143 | (condition-case nil | |
144 | ;; This is only valid on XEmacs. | |
145 | (mapcar (lambda (prop) | |
146 | (remove-specifier | |
147 | (face-property 'default prop) (current-buffer))) | |
148 | '(background background-pixmap foreground)) | |
149 | (error nil)) | |
150 | (delete-region ,(point-min-marker) ,(point-max-marker)))))))))) | |
151 | ||
152 | ;; mm-partial.el ends here |