Commit | Line | Data |
---|---|---|
a2535589 JA |
1 | ;; "RMAIL edit mode" Edit the current message. |
2 | ;; Copyright (C) 1985 Free Software Foundation, Inc. | |
3 | ||
4 | ;; This file is part of GNU Emacs. | |
5 | ||
6 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
7 | ;; it under the terms of the GNU General Public License as published by | |
8 | ;; the Free Software Foundation; either version 1, or (at your option) | |
9 | ;; any later version. | |
10 | ||
11 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
12 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;; GNU General Public License for more details. | |
15 | ||
16 | ;; You should have received a copy of the GNU General Public License | |
17 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
18 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | ||
20 | ||
21 | (require 'rmail) | |
22 | ||
23 | (defvar rmail-edit-map nil) | |
24 | (if rmail-edit-map | |
25 | nil | |
6e8290aa | 26 | (setq rmail-edit-map (nconc (make-sparse-keymap) (cdr text-mode-map))) |
a2535589 JA |
27 | (define-key rmail-edit-map "\C-c\C-c" 'rmail-cease-edit) |
28 | (define-key rmail-edit-map "\C-c\C-]" 'rmail-abort-edit)) | |
29 | ||
30 | ;; Rmail Edit mode is suitable only for specially formatted data. | |
31 | (put 'rmail-edit-mode 'mode-class 'special) | |
32 | ||
33 | (defun rmail-edit-mode () | |
34 | "Major mode for editing the contents of an RMAIL message. | |
35 | The editing commands are the same as in Text mode, together with two commands | |
36 | to return to regular RMAIL: | |
37 | * rmail-abort-edit cancels the changes | |
38 | you have made and returns to RMAIL | |
39 | * rmail-cease-edit makes them permanent. | |
40 | \\{rmail-edit-map}" | |
41 | (use-local-map rmail-edit-map) | |
42 | (setq major-mode 'rmail-edit-mode) | |
43 | (setq mode-name "RMAIL Edit") | |
44 | (if (boundp 'mode-line-modified) | |
45 | (setq mode-line-modified (default-value 'mode-line-modified)) | |
46 | (setq mode-line-format (default-value 'mode-line-format))) | |
47 | (run-hooks 'text-mode-hook 'rmail-edit-mode-hook)) | |
48 | ||
49 | (defun rmail-edit-current-message () | |
50 | "Edit the contents of this message." | |
51 | (interactive) | |
52 | (rmail-edit-mode) | |
53 | (make-local-variable 'rmail-old-text) | |
54 | (setq rmail-old-text (buffer-substring (point-min) (point-max))) | |
55 | (setq buffer-read-only nil) | |
56 | (set-buffer-modified-p (buffer-modified-p)) | |
57 | ;; Make mode line update. | |
58 | (if (and (eq (key-binding "\C-c\C-c") 'rmail-cease-edit) | |
59 | (eq (key-binding "\C-c\C-]") 'rmail-abort-edit)) | |
60 | (message "Editing: Type C-c C-c to return to Rmail, C-c C-] to abort") | |
61 | (message (substitute-command-keys | |
62 | "Editing: Type \\[rmail-cease-edit] to return to Rmail, \\[rmail-abort-edit] to abort")))) | |
63 | ||
64 | (defun rmail-cease-edit () | |
65 | "Finish editing message; switch back to Rmail proper." | |
66 | (interactive) | |
67 | ;; Make sure buffer ends with a newline. | |
68 | (save-excursion | |
69 | (goto-char (point-max)) | |
70 | (if (/= (preceding-char) ?\n) | |
71 | (insert "\n")) | |
72 | ;; Adjust the marker that points to the end of this message. | |
73 | (set-marker (aref rmail-message-vector (1+ rmail-current-message)) | |
74 | (point))) | |
75 | (let ((old rmail-old-text)) | |
76 | ;; Update the mode line. | |
77 | (set-buffer-modified-p (buffer-modified-p)) | |
78 | (rmail-mode-1) | |
79 | (if (and (= (length old) (- (point-max) (point-min))) | |
80 | (string= old (buffer-substring (point-min) (point-max)))) | |
81 | () | |
82 | (setq old nil) | |
83 | (rmail-set-attribute "edited" t) | |
84 | (if (boundp 'rmail-summary-vector) | |
85 | (progn | |
86 | (aset rmail-summary-vector (1- rmail-current-message) nil) | |
87 | (save-excursion | |
88 | (rmail-widen-to-current-msgbeg | |
89 | (function (lambda () | |
90 | (forward-line 2) | |
91 | (if (looking-at "Summary-line: ") | |
92 | (let ((buffer-read-only nil)) | |
93 | (delete-region (point) | |
94 | (progn (forward-line 1) | |
95 | (point)))))))) | |
96 | (rmail-show-message)))))) | |
97 | (setq buffer-read-only t)) | |
98 | ||
99 | (defun rmail-abort-edit () | |
100 | "Abort edit of current message; restore original contents." | |
101 | (interactive) | |
102 | (delete-region (point-min) (point-max)) | |
103 | (insert rmail-old-text) | |
104 | (rmail-cease-edit)) | |
105 |