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c113de23 | 1 | ;;; mm-partial.el --- showing message/partial |
e84b4b86 | 2 | |
acaf905b | 3 | ;; Copyright (C) 2000-2012 Free Software Foundation, Inc. |
c113de23 GM |
4 | |
5 | ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu> | |
6 | ;; Keywords: message partial | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
5e809f55 GM |
10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation, either version 3 of the License, or | |
13 | ;; (at your option) any later version. | |
c113de23 | 14 | |
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15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
c113de23 GM |
19 | |
20 | ;; You should have received a copy of the GNU General Public License | |
5e809f55 | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
c113de23 GM |
22 | |
23 | ;;; Commentary: | |
24 | ||
25 | ;;; Code: | |
26 | ||
23f87bed | 27 | (eval-when-compile (require 'cl)) |
c113de23 GM |
28 | |
29 | (require 'gnus-sum) | |
30 | (require 'mm-util) | |
31 | (require 'mm-decode) | |
32 | ||
33 | (defun mm-partial-find-parts (id &optional art) | |
01c52d31 | 34 | (let ((headers (with-current-buffer gnus-summary-buffer |
c113de23 GM |
35 | gnus-newsgroup-headers)) |
36 | phandles header) | |
37 | (while (setq header (pop headers)) | |
38 | (unless (eq (aref header 0) art) | |
39 | (mm-with-unibyte-buffer | |
a1506d29 | 40 | (gnus-request-article-this-buffer (aref header 0) |
c113de23 GM |
41 | gnus-newsgroup-name) |
42 | (when (search-forward id nil t) | |
23f87bed MB |
43 | (let ((nhandles (mm-dissect-buffer |
44 | nil gnus-article-loose-mime)) nid) | |
c113de23 GM |
45 | (if (consp (car nhandles)) |
46 | (mm-destroy-parts nhandles) | |
a1506d29 | 47 | (setq nid (cdr (assq 'id |
c113de23 GM |
48 | (cdr (mm-handle-type nhandles))))) |
49 | (if (not (equal id nid)) | |
50 | (mm-destroy-parts nhandles) | |
51 | (push nhandles phandles)))))))) | |
52 | phandles)) | |
53 | ||
54 | ;;;###autoload | |
55 | (defun mm-inline-partial (handle &optional no-display) | |
56 | "Show the partial part of HANDLE. | |
a1506d29 | 57 | This function replaces the buffer of HANDLE with a buffer contains |
c113de23 GM |
58 | the entire message. |
59 | If NO-DISPLAY is nil, display it. Otherwise, do nothing after replacing." | |
a1506d29 | 60 | (let ((id (cdr (assq 'id (cdr (mm-handle-type handle))))) |
c113de23 GM |
61 | phandles |
62 | (b (point)) (n 1) total | |
63 | phandle nn ntotal | |
64 | gnus-displaying-mime handles buffer) | |
65 | (unless (mm-handle-cache handle) | |
66 | (unless id | |
715a2ca2 | 67 | (error "Can not find message/partial id")) |
c113de23 | 68 | (setq phandles |
a1506d29 | 69 | (sort (cons handle |
c113de23 | 70 | (mm-partial-find-parts |
a1506d29 | 71 | id |
20a673b2 | 72 | (with-current-buffer gnus-summary-buffer |
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73 | (gnus-summary-article-number)))) |
74 | #'(lambda (a b) | |
a1506d29 JB |
75 | (let ((anumber (string-to-number |
76 | (cdr (assq 'number | |
c113de23 | 77 | (cdr (mm-handle-type a)))))) |
a1506d29 JB |
78 | (bnumber (string-to-number |
79 | (cdr (assq 'number | |
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80 | (cdr (mm-handle-type b))))))) |
81 | (< anumber bnumber))))) | |
82 | (setq gnus-article-mime-handles | |
23f87bed | 83 | (mm-merge-handles gnus-article-mime-handles phandles)) |
20a673b2 | 84 | (with-current-buffer (generate-new-buffer " *mm*") |
c113de23 | 85 | (while (setq phandle (pop phandles)) |
a1506d29 JB |
86 | (setq nn (string-to-number |
87 | (cdr (assq 'number | |
c113de23 | 88 | (cdr (mm-handle-type phandle)))))) |
a1506d29 JB |
89 | (setq ntotal (string-to-number |
90 | (cdr (assq 'total | |
c113de23 GM |
91 | (cdr (mm-handle-type phandle)))))) |
92 | (if ntotal | |
93 | (if total | |
a1506d29 | 94 | (unless (eq total ntotal) |
715a2ca2 | 95 | (error "The numbers of total are different")) |
c113de23 GM |
96 | (setq total ntotal))) |
97 | (unless (< nn n) | |
98 | (unless (eq nn n) | |
99 | (error "Missing part %d" n)) | |
100 | (mm-insert-part phandle) | |
101 | (goto-char (point-max)) | |
102 | (when (not (eq 0 (skip-chars-backward "\r\n"))) | |
103 | ;; remove tail blank spaces except one | |
104 | (if (looking-at "\r?\n") | |
105 | (goto-char (match-end 0))) | |
106 | (delete-region (point) (point-max))) | |
107 | (setq n (+ n 1)))) | |
108 | (unless total | |
109 | (error "Don't known the total number of")) | |
110 | (if (<= n total) | |
111 | (error "Missing part %d" n)) | |
112 | (kill-buffer (mm-handle-buffer handle)) | |
23f87bed MB |
113 | (goto-char (point-min)) |
114 | (let ((point (if (search-forward "\n\n" nil t) | |
115 | (1- (point)) | |
116 | (point-max)))) | |
117 | (goto-char (point-min)) | |
118 | (unless (re-search-forward "^mime-version:" point t) | |
119 | (insert "MIME-Version: 1.0\n"))) | |
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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 | |
23f87bed | 134 | (mm-merge-handles gnus-article-mime-handles handles))) |
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135 | (mm-handle-set-undisplayer |
136 | handle | |
137 | `(lambda () | |
138 | (let (buffer-read-only) | |
139 | (condition-case nil | |
140 | ;; This is only valid on XEmacs. | |
141 | (mapcar (lambda (prop) | |
142 | (remove-specifier | |
143 | (face-property 'default prop) (current-buffer))) | |
144 | '(background background-pixmap foreground)) | |
145 | (error nil)) | |
146 | (delete-region ,(point-min-marker) ,(point-max-marker)))))))))) | |
147 | ||
23f87bed MB |
148 | (provide 'mm-partial) |
149 | ||
715a2ca2 | 150 | ;;; mm-partial.el ends here |