| 1 | ;;; gnus-eform.el --- a mode for editing forms for Gnus |
| 2 | ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2004, 2005 |
| 3 | ;; Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
| 6 | ;; Keywords: news |
| 7 | |
| 8 | ;; This file is part of GNU Emacs. |
| 9 | |
| 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 2, or (at your option) |
| 13 | ;; any later version. |
| 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 |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;; GNU General Public License for more details. |
| 19 | |
| 20 | ;; You should have received a copy of the GNU General Public License |
| 21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 23 | ;; Boston, MA 02111-1307, USA. |
| 24 | |
| 25 | ;;; Commentary: |
| 26 | |
| 27 | ;;; Code: |
| 28 | |
| 29 | (require 'gnus) |
| 30 | (require 'gnus-win) |
| 31 | |
| 32 | ;;; |
| 33 | ;;; Editing forms |
| 34 | ;;; |
| 35 | |
| 36 | (defgroup gnus-edit-form nil |
| 37 | "A mode for editing forms." |
| 38 | :group 'gnus) |
| 39 | |
| 40 | (defcustom gnus-edit-form-mode-hook nil |
| 41 | "Hook run in `gnus-edit-form-mode' buffers." |
| 42 | :group 'gnus-edit-form |
| 43 | :type 'hook) |
| 44 | |
| 45 | (defcustom gnus-edit-form-menu-hook nil |
| 46 | "Hook run when creating menus in `gnus-edit-form-mode' buffers." |
| 47 | :group 'gnus-edit-form |
| 48 | :type 'hook) |
| 49 | |
| 50 | ;;; Internal variables |
| 51 | |
| 52 | (defvar gnus-edit-form-buffer "*Gnus edit form*") |
| 53 | (defvar gnus-edit-form-done-function nil) |
| 54 | |
| 55 | (defvar gnus-edit-form-mode-map nil) |
| 56 | (unless gnus-edit-form-mode-map |
| 57 | (setq gnus-edit-form-mode-map (make-sparse-keymap)) |
| 58 | (set-keymap-parent gnus-edit-form-mode-map emacs-lisp-mode-map) |
| 59 | (gnus-define-keys gnus-edit-form-mode-map |
| 60 | "\C-c\C-c" gnus-edit-form-done |
| 61 | "\C-c\C-k" gnus-edit-form-exit)) |
| 62 | |
| 63 | (defun gnus-edit-form-make-menu-bar () |
| 64 | (unless (boundp 'gnus-edit-form-menu) |
| 65 | (easy-menu-define |
| 66 | gnus-edit-form-menu gnus-edit-form-mode-map "" |
| 67 | '("Edit Form" |
| 68 | ["Exit and save changes" gnus-edit-form-done t] |
| 69 | ["Exit" gnus-edit-form-exit t])) |
| 70 | (gnus-run-hooks 'gnus-edit-form-menu-hook))) |
| 71 | |
| 72 | (defun gnus-edit-form-mode () |
| 73 | "Major mode for editing forms. |
| 74 | It is a slightly enhanced emacs-lisp-mode. |
| 75 | |
| 76 | \\{gnus-edit-form-mode-map}" |
| 77 | (interactive) |
| 78 | (when (gnus-visual-p 'group-menu 'menu) |
| 79 | (gnus-edit-form-make-menu-bar)) |
| 80 | (kill-all-local-variables) |
| 81 | (setq major-mode 'gnus-edit-form-mode) |
| 82 | (setq mode-name "Edit Form") |
| 83 | (use-local-map gnus-edit-form-mode-map) |
| 84 | (make-local-variable 'gnus-edit-form-done-function) |
| 85 | (make-local-variable 'gnus-prev-winconf) |
| 86 | (gnus-run-mode-hooks 'gnus-edit-form-mode-hook)) |
| 87 | |
| 88 | (defun gnus-edit-form (form documentation exit-func) |
| 89 | "Edit FORM in a new buffer. |
| 90 | Call EXIT-FUNC on exit. Display DOCUMENTATION in the beginning |
| 91 | of the buffer." |
| 92 | (let ((winconf (current-window-configuration))) |
| 93 | (set-buffer (gnus-get-buffer-create gnus-edit-form-buffer)) |
| 94 | (gnus-configure-windows 'edit-form) |
| 95 | (gnus-edit-form-mode) |
| 96 | (setq gnus-prev-winconf winconf) |
| 97 | (setq gnus-edit-form-done-function exit-func) |
| 98 | (erase-buffer) |
| 99 | (insert documentation) |
| 100 | (unless (bolp) |
| 101 | (insert "\n")) |
| 102 | (goto-char (point-min)) |
| 103 | (while (not (eobp)) |
| 104 | (insert ";;; ") |
| 105 | (forward-line 1)) |
| 106 | (insert ";; Type `C-c C-c' after you've finished editing.\n") |
| 107 | (insert "\n") |
| 108 | (let ((p (point))) |
| 109 | (gnus-pp form) |
| 110 | (insert "\n") |
| 111 | (goto-char p)))) |
| 112 | |
| 113 | (defun gnus-edit-form-done () |
| 114 | "Update changes and kill the current buffer." |
| 115 | (interactive) |
| 116 | (goto-char (point-min)) |
| 117 | (let ((form (condition-case nil |
| 118 | (read (current-buffer)) |
| 119 | (end-of-file nil))) |
| 120 | (func gnus-edit-form-done-function)) |
| 121 | (gnus-edit-form-exit) |
| 122 | (funcall func form))) |
| 123 | |
| 124 | (defun gnus-edit-form-exit () |
| 125 | "Kill the current buffer." |
| 126 | (interactive) |
| 127 | (let ((winconf gnus-prev-winconf)) |
| 128 | (kill-buffer (current-buffer)) |
| 129 | (set-window-configuration winconf))) |
| 130 | |
| 131 | (provide 'gnus-eform) |
| 132 | |
| 133 | ;;; arch-tag: ef50678c-2c28-49ef-affc-e53b3b2c0bf6 |
| 134 | ;;; gnus-eform.el ends here |