1 ;;; gnus-eform.el --- a mode for editing forms for Gnus
2 ;; Copyright (C) 1996,97,98 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; This file is part of GNU Emacs.
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 by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
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.
35 (defgroup gnus-edit-form nil
36 "A mode for editing forms."
39 (defcustom gnus-edit-form-mode-hook nil
40 "Hook run in `gnus-edit-form-mode' buffers."
41 :group 'gnus-edit-form
44 (defcustom gnus-edit-form-menu-hook nil
45 "Hook run when creating menus in `gnus-edit-form-mode' buffers."
46 :group 'gnus-edit-form
49 ;;; Internal variables
51 (defvar gnus-edit-form-buffer "*Gnus edit form*")
52 (defvar gnus-edit-form-done-function nil)
54 (defvar gnus-edit-form-mode-map nil)
55 (unless gnus-edit-form-mode-map
56 (setq gnus-edit-form-mode-map (make-sparse-keymap))
57 (set-keymap-parent gnus-edit-form-mode-map emacs-lisp-mode-map)
58 (gnus-define-keys gnus-edit-form-mode-map
59 "\C-c\C-c" gnus-edit-form-done
60 "\C-c\C-k" gnus-edit-form-exit))
62 (defun gnus-edit-form-make-menu-bar ()
63 (unless (boundp 'gnus-edit-form-menu)
65 gnus-edit-form-menu gnus-edit-form-mode-map ""
67 ["Exit and save changes" gnus-edit-form-done t]
68 ["Exit" gnus-edit-form-exit t]))
69 (gnus-run-hooks 'gnus-edit-form-menu-hook)))
71 (defun gnus-edit-form-mode ()
72 "Major mode for editing forms.
73 It is a slightly enhanced emacs-lisp-mode.
75 \\{gnus-edit-form-mode-map}"
77 (when (gnus-visual-p 'group-menu 'menu)
78 (gnus-edit-form-make-menu-bar))
79 (kill-all-local-variables)
80 (setq major-mode 'gnus-edit-form-mode)
81 (setq mode-name "Edit Form")
82 (use-local-map gnus-edit-form-mode-map)
83 (make-local-variable 'gnus-edit-form-done-function)
84 (make-local-variable 'gnus-prev-winconf)
85 (gnus-run-hooks 'gnus-edit-form-mode-hook))
87 (defun gnus-edit-form (form documentation exit-func)
88 "Edit FORM in a new buffer.
89 Call EXIT-FUNC on exit. Display DOCUMENTATION in the beginning
91 (let ((winconf (current-window-configuration)))
92 (set-buffer (gnus-get-buffer-create gnus-edit-form-buffer))
93 (gnus-configure-windows 'edit-form)
95 (setq gnus-prev-winconf winconf)
96 (setq gnus-edit-form-done-function exit-func)
98 (insert documentation)
101 (goto-char (point-min))
105 (insert ";; Type `C-c C-c' after you've finished editing.\n")
108 (pp form (current-buffer))
112 (defun gnus-edit-form-done ()
113 "Update changes and kill the current buffer."
115 (goto-char (point-min))
116 (let ((form (read (current-buffer)))
117 (func gnus-edit-form-done-function))
118 (gnus-edit-form-exit)
119 (funcall func form)))
121 (defun gnus-edit-form-exit ()
122 "Kill the current buffer."
124 (let ((winconf gnus-prev-winconf))
125 (kill-buffer (current-buffer))
126 (set-window-configuration winconf)))
128 (provide 'gnus-eform)
130 ;;; gnus-eform.el ends here