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e8af40ee | 1 | ;;; widget.el --- a library of user interface components |
d543e20b | 2 | ;; |
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3 | ;; Copyright (C) 1996, 1997, 2002, 2003, 2004, |
4 | ;; 2005 Free Software Foundation, Inc. | |
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5 | ;; |
6 | ;; Author: Per Abrahamsen <abraham@dina.kvl.dk> | |
7 | ;; Keywords: help, extensions, faces, hypermedia | |
8697863a | 8 | ;; Version: 1.9920 |
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9 | ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/ |
10 | ||
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11 | ;; This file is part of GNU Emacs. |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
14 | ;; it under the terms of the GNU General Public License as published by | |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
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25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | ;; Boston, MA 02110-1301, USA. | |
c2383d2d | 27 | |
d543e20b | 28 | ;;; Commentary: |
f1180544 | 29 | ;; |
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30 | ;; The widget library is partially documented in the `widget' Info |
31 | ;; file. | |
d543e20b | 32 | ;; |
b3e49cbb | 33 | ;; This file only contains the code needed to define new widget types. |
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34 | ;; Everything else is autoloaded from `wid-edit.el'. |
35 | ||
36 | ;;; Code: | |
37 | ||
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38 | ;; Doing this is unnecessary in Emacs 20. Kept as dummy in case |
39 | ;; external libraries call it. We save a kb or two of purespace by | |
40 | ;; dummying-out such definitions generally. | |
d543e20b | 41 | (defmacro define-widget-keywords (&rest keys) |
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42 | ;; ;; Don't use backquote, since that makes trouble trying to |
43 | ;; ;; re-bootstrap from just the .el files. | |
44 | ;; (list 'eval-and-compile | |
45 | ;; (list 'let (list (list 'keywords (list 'quote keys))) | |
46 | ;; (list 'while 'keywords | |
47 | ;; (list 'or (list 'boundp (list 'car 'keywords)) | |
48 | ;; (list 'set (list 'car 'keywords) (list 'car 'keywords))) | |
49 | ;; (list 'setq 'keywords (list 'cdr 'keywords))))) | |
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50 | ) |
51 | ||
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52 | ;;(define-widget-keywords :documentation-indent |
53 | ;; :complete-function :complete :button-overlay | |
54 | ;; :field-overlay | |
55 | ;; :documentation-shown :button-prefix | |
56 | ;; :button-suffix :mouse-down-action :glyph-up :glyph-down :glyph-inactive | |
57 | ;; :prompt-internal :prompt-history :prompt-match | |
58 | ;; :prompt-value :deactivate :active | |
59 | ;; :inactive :activate :sibling-args :delete-button-args | |
60 | ;; :insert-button-args :append-button-args :button-args | |
61 | ;; :tag-glyph :off-glyph :on-glyph :valid-regexp | |
62 | ;; :secret :sample-face :sample-face-get :case-fold | |
63 | ;; :create :convert-widget :format :value-create :offset :extra-offset | |
64 | ;; :tag :doc :from :to :args :value :action | |
65 | ;; :value-set :value-delete :match :parent :delete :menu-tag-get | |
66 | ;; :value-get :choice :void :menu-tag :on :off :on-type :off-type | |
67 | ;; :notify :entry-format :button :children :buttons :insert-before | |
68 | ;; :delete-at :format-handler :widget :value-pos :value-to-internal | |
69 | ;; :indent :size :value-to-external :validate :error :directory | |
70 | ;; :must-match :type-error :value-inline :inline :match-inline :greedy | |
71 | ;; :button-face-get :button-face :value-face :keymap :entry-from | |
72 | ;; :entry-to :help-echo :documentation-property :tab-order) | |
d543e20b | 73 | |
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74 | (defun define-widget (name class doc &rest args) |
75 | "Define a new widget type named NAME from CLASS. | |
76 | ||
77 | NAME and CLASS should both be symbols, CLASS should be one of the | |
78 | existing widget types, or nil to create the widget from scratch. | |
79 | ||
80 | After the new widget has been defined, the following two calls will | |
81 | create identical widgets: | |
82 | ||
83 | * (widget-create NAME) | |
84 | ||
85 | * (apply 'widget-create CLASS ARGS) | |
86 | ||
87 | The third argument DOC is a documentation string for the widget." | |
f12126f8 | 88 | (declare (doc-string 3)) |
d543e20b | 89 | (put name 'widget-type (cons class args)) |
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90 | (put name 'widget-documentation doc) |
91 | name) | |
d543e20b | 92 | |
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93 | ;; This is used by external widget code (in W3, at least). |
94 | (defalias 'widget-plist-member 'plist-member) | |
95 | ||
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96 | ;;; The End. |
97 | ||
98 | (provide 'widget) | |
99 | ||
f12126f8 | 100 | ;; arch-tag: 932c71a3-9aeb-4827-a293-8b88b26d5c58 |
e8af40ee | 101 | ;;; widget.el ends here |