LCOV - code coverage report
Current view: top level - lisp - widget.el (source / functions) Hit Total Coverage
Test: tramp-tests.info Lines: 5 5 100.0 %
Date: 2017-08-27 09:44:50 Functions: 1 2 50.0 %

          Line data    Source code
       1             : ;;; widget.el --- a library of user interface components
       2             : ;;
       3             : ;; Copyright (C) 1996-1997, 2001-2017 Free Software Foundation, Inc.
       4             : ;;
       5             : ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
       6             : ;; Keywords: help, extensions, faces, hypermedia
       7             : ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
       8             : ;; Package: emacs
       9             : 
      10             : ;; This file is part of GNU Emacs.
      11             : 
      12             : ;; GNU Emacs is free software: you can redistribute it and/or modify
      13             : ;; it under the terms of the GNU General Public License as published by
      14             : ;; the Free Software Foundation, either version 3 of the License, or
      15             : ;; (at your option) any later version.
      16             : 
      17             : ;; GNU Emacs is distributed in the hope that it will be useful,
      18             : ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
      19             : ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      20             : ;; GNU General Public License for more details.
      21             : 
      22             : ;; You should have received a copy of the GNU General Public License
      23             : ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
      24             : 
      25             : ;;; Commentary:
      26             : ;;
      27             : ;; The widget library is partially documented in the `widget' Info
      28             : ;; file.
      29             : ;;
      30             : ;; This file only contains the code needed to define new widget types.
      31             : ;; Everything else is autoloaded from `wid-edit.el'.
      32             : 
      33             : ;;; Code:
      34             : 
      35             : ;; Doing this is unnecessary in Emacs 20.  Kept as dummy in case
      36             : ;; external libraries call it.  We save a kb or two of purespace by
      37             : ;; dummying-out such definitions generally.
      38             : (defmacro define-widget-keywords (&rest _keys)
      39             :   ;; ;; Don't use backquote, since that makes trouble trying to
      40             :   ;; ;; re-bootstrap from just the .el files.
      41             :   ;; (list 'eval-and-compile
      42             :   ;;   (list 'let (list (list 'keywords (list 'quote keys)))
      43             :   ;;     (list 'while 'keywords
      44             :   ;;    (list 'or (list 'boundp (list 'car 'keywords))
      45             :   ;;      (list 'set (list 'car 'keywords) (list 'car 'keywords)))
      46             :   ;;    (list 'setq 'keywords (list 'cdr 'keywords)))))
      47             :   )
      48             : 
      49             : ;;(define-widget-keywords :documentation-indent
      50             : ;;  :complete-function :complete :button-overlay
      51             : ;;  :field-overlay
      52             : ;;  :documentation-shown :button-prefix
      53             : ;;  :button-suffix :mouse-down-action :glyph-up :glyph-down :glyph-inactive
      54             : ;;  :prompt-internal :prompt-history :prompt-match
      55             : ;;  :prompt-value  :deactivate :active
      56             : ;;  :inactive :activate :sibling-args :delete-button-args
      57             : ;;  :insert-button-args :append-button-args :button-args
      58             : ;;  :tag-glyph :off-glyph :on-glyph :valid-regexp
      59             : ;;  :secret :sample-face :sample-face-get :case-fold
      60             : ;;  :create :convert-widget :format :value-create :offset :extra-offset
      61             : ;;  :tag :doc :from :to :args :value :action
      62             : ;;  :value-set :value-delete :match :parent :delete :menu-tag-get
      63             : ;;  :value-get :choice :void :menu-tag :on :off :on-type :off-type
      64             : ;;  :notify :entry-format :button :children :buttons :insert-before
      65             : ;;  :delete-at :format-handler :widget :value-pos :value-to-internal
      66             : ;;  :indent :size :value-to-external :validate :error :directory
      67             : ;;  :must-match :type-error :value-inline :inline :match-inline :greedy
      68             : ;;  :button-face-get :button-face :value-face :keymap :entry-from
      69             : ;;  :entry-to :help-echo :documentation-property :tab-order)
      70             : 
      71             : (defun define-widget (name class doc &rest args)
      72             :   "Define a new widget type named NAME from CLASS.
      73             : 
      74             : NAME and CLASS should both be symbols, CLASS should be one of the
      75             : existing widget types, or nil to create the widget from scratch.
      76             : 
      77             : After the new widget has been defined, the following two calls will
      78             : create identical widgets:
      79             : 
      80             : * (widget-create NAME)
      81             : 
      82             : * (apply #\\='widget-create CLASS ARGS)
      83             : 
      84             : The third argument DOC is a documentation string for the widget."
      85             :   (declare (doc-string 3))
      86             :   ;;
      87           2 :   (unless (or (null doc) (stringp doc))
      88           2 :     (error "widget documentation must be nil or a string."))
      89           2 :   (put name 'widget-type (cons class args))
      90           2 :   (put name 'widget-documentation (purecopy doc))
      91           2 :   name)
      92             : 
      93             : ;; This is used by external widget code (in W3, at least).
      94             : (define-obsolete-function-alias 'widget-plist-member #'plist-member "26.1")
      95             : 
      96             : ;;; The End.
      97             : 
      98             : (provide 'widget)
      99             : 
     100             : ;;; widget.el ends here

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