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eec82323 | 1 | ;;; gnus-eform.el --- a mode for editing forms for Gnus |
e84b4b86 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1996-2014 Free Software Foundation, Inc. |
eec82323 | 4 | |
6748645f | 5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
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6 | ;; Keywords: news |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
5e809f55 | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
eec82323 | 11 | ;; it under the terms of the GNU General Public License as published by |
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12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
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14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
5e809f55 | 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 | ;; GNU General Public License for more details. |
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/>. |
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22 | |
23 | ;;; Commentary: | |
24 | ||
25 | ;;; Code: | |
26 | ||
27 | (require 'gnus) | |
28 | (require 'gnus-win) | |
29 | ||
30 | ;;; | |
31 | ;;; Editing forms | |
32 | ;;; | |
33 | ||
34 | (defgroup gnus-edit-form nil | |
35 | "A mode for editing forms." | |
36 | :group 'gnus) | |
37 | ||
38 | (defcustom gnus-edit-form-mode-hook nil | |
39 | "Hook run in `gnus-edit-form-mode' buffers." | |
40 | :group 'gnus-edit-form | |
41 | :type 'hook) | |
42 | ||
43 | (defcustom gnus-edit-form-menu-hook nil | |
44 | "Hook run when creating menus in `gnus-edit-form-mode' buffers." | |
45 | :group 'gnus-edit-form | |
46 | :type 'hook) | |
47 | ||
48 | ;;; Internal variables | |
49 | ||
eec82323 | 50 | (defvar gnus-edit-form-buffer "*Gnus edit form*") |
6748645f | 51 | (defvar gnus-edit-form-done-function nil) |
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52 | |
53 | (defvar gnus-edit-form-mode-map nil) | |
54 | (unless gnus-edit-form-mode-map | |
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55 | (setq gnus-edit-form-mode-map (make-sparse-keymap)) |
56 | (set-keymap-parent gnus-edit-form-mode-map emacs-lisp-mode-map) | |
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57 | (gnus-define-keys gnus-edit-form-mode-map |
58 | "\C-c\C-c" gnus-edit-form-done | |
59 | "\C-c\C-k" gnus-edit-form-exit)) | |
60 | ||
61 | (defun gnus-edit-form-make-menu-bar () | |
62 | (unless (boundp 'gnus-edit-form-menu) | |
63 | (easy-menu-define | |
64 | gnus-edit-form-menu gnus-edit-form-mode-map "" | |
65 | '("Edit Form" | |
66 | ["Exit and save changes" gnus-edit-form-done t] | |
67 | ["Exit" gnus-edit-form-exit t])) | |
6748645f | 68 | (gnus-run-hooks 'gnus-edit-form-menu-hook))) |
eec82323 | 69 | |
c2e9e9ef | 70 | (define-derived-mode gnus-edit-form-mode fundamental-mode "Edit Form" |
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71 | "Major mode for editing forms. |
72 | It is a slightly enhanced emacs-lisp-mode. | |
73 | ||
74 | \\{gnus-edit-form-mode-map}" | |
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75 | (when (gnus-visual-p 'group-menu 'menu) |
76 | (gnus-edit-form-make-menu-bar)) | |
eec82323 | 77 | (make-local-variable 'gnus-edit-form-done-function) |
c2e9e9ef | 78 | (make-local-variable 'gnus-prev-winconf)) |
eec82323 | 79 | |
01c52d31 | 80 | (defun gnus-edit-form (form documentation exit-func &optional layout) |
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81 | "Edit FORM in a new buffer. |
82 | Call EXIT-FUNC on exit. Display DOCUMENTATION in the beginning | |
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83 | of the buffer. |
84 | The optional LAYOUT overrides the `edit-form' window layout." | |
eec82323 | 85 | (let ((winconf (current-window-configuration))) |
6748645f | 86 | (set-buffer (gnus-get-buffer-create gnus-edit-form-buffer)) |
01c52d31 | 87 | (gnus-configure-windows (or layout 'edit-form)) |
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88 | (gnus-edit-form-mode) |
89 | (setq gnus-prev-winconf winconf) | |
90 | (setq gnus-edit-form-done-function exit-func) | |
91 | (erase-buffer) | |
92 | (insert documentation) | |
93 | (unless (bolp) | |
94 | (insert "\n")) | |
95 | (goto-char (point-min)) | |
96 | (while (not (eobp)) | |
97 | (insert ";;; ") | |
98 | (forward-line 1)) | |
99 | (insert ";; Type `C-c C-c' after you've finished editing.\n") | |
100 | (insert "\n") | |
101 | (let ((p (point))) | |
23f87bed | 102 | (gnus-pp form) |
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103 | (insert "\n") |
104 | (goto-char p)))) | |
105 | ||
106 | (defun gnus-edit-form-done () | |
107 | "Update changes and kill the current buffer." | |
108 | (interactive) | |
109 | (goto-char (point-min)) | |
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110 | (let ((form (condition-case nil |
111 | (read (current-buffer)) | |
112 | (end-of-file nil))) | |
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113 | (func gnus-edit-form-done-function)) |
114 | (gnus-edit-form-exit) | |
115 | (funcall func form))) | |
116 | ||
117 | (defun gnus-edit-form-exit () | |
118 | "Kill the current buffer." | |
119 | (interactive) | |
120 | (let ((winconf gnus-prev-winconf)) | |
121 | (kill-buffer (current-buffer)) | |
122 | (set-window-configuration winconf))) | |
123 | ||
124 | (provide 'gnus-eform) | |
125 | ||
126 | ;;; gnus-eform.el ends here |