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2
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1 ;;; w3-forms.el --- Emacs-w3 forms parsing code for new display engine
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2 ;; Author: wmperry
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3 ;; Created: 1997/01/27 00:57:39
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4 ;; Version: 1.51
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5 ;; Keywords: faces, help, comm, data, languages
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1996 by William M. Perry (wmperry@cs.indiana.edu)
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9 ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
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10 ;;;
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11 ;;; This file is part of GNU Emacs.
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12 ;;;
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13 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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14 ;;; it under the terms of the GNU General Public License as published by
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15 ;;; the Free Software Foundation; either version 2, or (at your option)
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16 ;;; any later version.
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17 ;;;
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18 ;;; GNU Emacs is distributed in the hope that it will be useful,
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19 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;;; GNU General Public License for more details.
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22 ;;;
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23 ;;; You should have received a copy of the GNU General Public License
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24 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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25 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;;; Boston, MA 02111-1307, USA.
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27 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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28
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29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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30 ;;; FORMS processing for html 2.0/3.0
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31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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70
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32 (eval-and-compile
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33 (require 'w3-display)
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34 (require 'widget))
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35
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36 (require 'w3-vars)
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37 (require 'mule-sysdp)
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16
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38
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82
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39 (define-widget-keywords :emacspeak-help :w3-form-data)
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40
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41 (defvar w3-form-keymap (copy-keymap global-map))
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42 (define-key w3-form-keymap "\r" 'w3-form-maybe-submit-by-keypress)
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43 (define-key w3-form-keymap "\n" 'w3-form-maybe-submit-by-keypress)
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44 (define-key w3-form-keymap "\t" 'w3-widget-forward)
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45 (define-key w3-form-keymap [(shift tab)] 'w3-widget-backward)
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46
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47 ;; A form entry area is a vector
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48 ;; [ type name default-value value maxlength options widget plist]
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49 ;; Where:
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50 ;; type = symbol defining what type of form entry area it is
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51 ;; (ie: file, radio)
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52 ;; name = the name of the form element
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53 ;; default-value = the value this started out with
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54
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55 (defsubst w3-form-element-type (obj) (aref obj 0))
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56 (defsubst w3-form-element-name (obj) (aref obj 1))
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57 (defsubst w3-form-element-default-value (obj) (aref obj 2))
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58 (defsubst w3-form-element-value (obj) (aref obj 3))
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59 (defsubst w3-form-element-size (obj) (aref obj 4))
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60 (defsubst w3-form-element-maxlength (obj) (aref obj 5))
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61 (defsubst w3-form-element-options (obj) (aref obj 6))
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62 (defsubst w3-form-element-action (obj) (aref obj 7))
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63 (defsubst w3-form-element-widget (obj) (aref obj 8))
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64 (defsubst w3-form-element-plist (obj) (aref obj 9))
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65
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66 (defsubst w3-form-element-set-type (obj val) (aset obj 0 val))
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67 (defsubst w3-form-element-set-name (obj val) (aset obj 1 val))
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68 (defsubst w3-form-element-set-default-value (obj val) (aset obj 2 val))
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69 (defsubst w3-form-element-set-value (obj val) (aset obj 3 val))
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70 (defsubst w3-form-element-set-size (obj val) (aset obj 4 val))
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71 (defsubst w3-form-element-set-maxlength (obj val) (aset obj 5 val))
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72 (defsubst w3-form-element-set-options (obj val) (aset obj 6 val))
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73 (defsubst w3-form-element-set-action (obj val) (aset obj 7 val))
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74 (defsubst w3-form-element-set-widget (obj val) (aset obj 8 val))
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75 (defsubst w3-form-element-set-plist (obj val) (aset obj 9 val))
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76
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77 (defun w3-form-determine-size (el size)
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78 (case (w3-form-element-type el)
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79 (checkbox 3)
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80 (radio 4)
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81 ((reset submit) (+ 2 (length (or (w3-form-element-value el)
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82 (symbol-name
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83 (w3-form-element-type el))))))
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84 (multiline 21)
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85 (hidden nil)
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86 (file (or size 26))
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87 ((float text int) (or size 20))
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88 (option
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89 (or size
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90 (length (caar (sort (w3-form-element-options el)
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91 (function
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92 (lambda (x y)
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93 (>= (length (car x)) (length (car y))))))))))
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94 (otherwise (or size 22))))
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95
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96 ;;###autoload
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97 (defun w3-form-add-element (plist face)
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98 (let* ((action (plist-get plist 'action))
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99 (el (vector (plist-get plist 'type)
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100 (plist-get plist 'name)
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101 (plist-get plist 'default)
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102 (plist-get plist 'value)
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103 (plist-get plist 'size)
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104 (plist-get plist 'maxlength)
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105 (plist-get plist 'options)
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106 action
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107 nil
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108 plist))
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109 (size (w3-form-determine-size el (plist-get plist 'size)))
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110 (node (assoc action w3-form-elements)))
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111 (if (eq (plist-get plist 'type) 'hidden)
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112 (if node
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113 (setcdr node (cons el (cdr node)))
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114 (setq w3-form-elements (cons (cons action (list el))
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115 w3-form-elements))))
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116 (if size
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117 (set-text-properties (point)
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118 (progn (insert-char ?T size) (point))
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119 (list 'w3-form-info el
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120 'start-open t
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121 'end-open t
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122 'rear-nonsticky t)))))
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123
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124 (defun w3-form-resurrect-widgets ()
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125 (let ((st (point-min))
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126 info nd node action)
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127 (while st
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128 (if (setq info (get-text-property st 'w3-form-info))
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129 (progn
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130 (setq nd (or (next-single-property-change st 'w3-form-info)
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131 (point-max))
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132 action (w3-form-element-action info)
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133 node (assoc action w3-form-elements))
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134 (goto-char st)
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135 (delete-region st nd)
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136 (if (not (w3-form-element-size info))
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137 (w3-form-element-set-size info 20))
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138 (if node
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139 (setcdr node (cons info (cdr node)))
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140 (setq w3-form-elements (cons (cons action (list info))
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141 w3-form-elements)))
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142 (w3-form-add-element-internal info)
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143 (setq st (next-single-property-change st 'w3-form-info)))
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144 (setq st (next-single-property-change st 'w3-form-info))))))
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145
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146 (defsubst w3-form-mark-widget (widget el)
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147 (let ((widgets (list widget))
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148 (children (widget-get widget :children))
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149 (parent (widget-get widget :parent)))
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150 (w3-form-element-set-widget el widget)
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151 ;; Get _all_ the children associated with this widget
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152 (while children
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153 (setq widgets (cons (car children) widgets))
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154 (if (widget-get (car children) :children)
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155 (setq children (append children
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156 (widget-get (car children) :children))))
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157 (setq children (cdr children)))
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158 (while (widget-get widget :parent)
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159 (setq widget (widget-get widget :parent)
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160 widgets (cons widget widgets)))
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161 (setq children (widget-get widget :buttons))
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162 ;; Special case for radio buttons
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163 (while children
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164 (setq widgets (cons (car children) widgets))
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165 (if (widget-get (car children) :children)
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166 (setq children (append children
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167 (widget-get (car children) :children))))
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168 (setq children (cdr children)))
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169 (while widgets
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170 (setq widget (pop widgets))
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171 (widget-put widget :emacspeak-help 'w3-form-summarize-field)
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172 (widget-put widget :w3-form-data el))))
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173
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174 (defun w3-form-add-element-internal (el)
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175 (let* ((widget nil)
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176 (buffer-read-only nil)
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177 (inhibit-read-only t)
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178 (widget-creation-function nil))
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179 (setq widget-creation-function (or (get (w3-form-element-type el)
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180 'w3-widget-creation-function)
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181 'w3-form-default-widget-creator)
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82
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182 widget (and (fboundp widget-creation-function)
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183 (funcall widget-creation-function el nil)))
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184 (if (not widget)
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185 nil
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186 (w3-form-mark-widget widget el))))
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187
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188 ;; These properties tell the add-element function how to actually create
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189 ;; each type of widget.
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190 (put 'checkbox 'w3-widget-creation-function 'w3-form-create-checkbox)
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191 (put 'multiline 'w3-widget-creation-function 'w3-form-create-multiline)
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192 (put 'radio 'w3-widget-creation-function 'w3-form-create-radio-button)
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193 (put 'reset 'w3-widget-creation-function 'w3-form-create-submit-button)
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194 (put 'submit 'w3-widget-creation-function 'w3-form-create-submit-button)
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195 (put 'hidden 'w3-widget-creation-function 'ignore)
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196 (put 'file 'w3-widget-creation-function 'w3-form-create-file-browser)
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197 (put 'option 'w3-widget-creation-function 'w3-form-create-option-list)
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198 (put 'keygen 'w3-widget-creation-function 'w3-form-create-keygen-list)
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199 (put 'button 'w3-widget-creation-function 'w3-form-create-button)
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200 (put 'image 'w3-widget-creation-function 'w3-form-create-image)
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82
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201 (put 'int 'w3-widget-creation-function 'w3-form-create-integer)
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202 (put 'float 'w3-widget-creation-function 'w3-form-create-float)
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86
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203 (put 'custom 'w3-widget-creation-function 'w3-form-create-custom)
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204 (put 'text 'w3-widget-creation-function 'w3-form-create-text)
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205
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206 ;; Custom support.
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207 (defvar w3-custom-options nil)
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208 (make-variable-buffer-local 'w3-custom-options)
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209
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210 (defun w3-form-create-custom (el face)
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211 (require 'custom-edit)
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212 (let* ((name (w3-form-element-name el))
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213 (var-name (w3-form-element-value el))
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214 (type (plist-get (w3-form-element-plist el) 'custom-type))
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215 (widget (widget-create (cond ((string-equal type "variable")
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216 'custom-variable)
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217 ((string-equal type "face")
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218 'custom-face)
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219 ((string-equal type "group")
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220 'custom-group)
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221 (t 'item)) (intern var-name))))
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222 (custom-magic-reset widget)
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223 (push widget w3-custom-options)
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224 widget))
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225
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226 (defun w3-form-create-checkbox (el face)
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227 (widget-create 'checkbox
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228 :value-face face
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229 (and (w3-form-element-default-value el) t)))
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230
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231 (defun w3-form-radio-button-update (widget child event)
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232 (widget-radio-action widget child event)
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233 (w3-form-mark-widget widget (widget-get widget :w3-form-data)))
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234
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235 (defun w3-form-create-radio-button (el face)
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236 (let* ((name (w3-form-element-name el))
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237 (action (w3-form-element-action el))
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238 (uniqid (cons name action))
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239 (formobj (cdr (assoc uniqid w3-form-radio-elements)))
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240 (widget nil)
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241 )
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242 (if formobj
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243 (progn
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244 (setq widget (w3-form-element-widget formobj))
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2
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245 (widget-radio-add-item widget
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246 (list 'item
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247 :format "%t"
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248 :tag ""
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249 :value (w3-form-element-value el)))
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250 (w3-form-mark-widget widget el)
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2
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251 (if (w3-form-element-default-value el)
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82
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252 (progn
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253 (widget-put widget 'w3-form-default-value
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254 (w3-form-element-value el))
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255 (widget-value-set widget (w3-form-element-value el))))
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256 nil)
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82
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257 (setq widget (widget-create
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258 'radio-button-choice
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259 :value (w3-form-element-value el)
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260 :action 'w3-form-radio-button-update
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261 (list 'item
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262 :format "%t"
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263 :tag ""
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264 :value (w3-form-element-value el)))
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265 w3-form-radio-elements (cons (cons uniqid el)
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266 w3-form-radio-elements))
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267 (widget-put widget 'w3-form-default-value (w3-form-element-value el))
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268 widget)))
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269
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270 (defun w3-form-create-button (el face)
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271 ;; This handles dealing with the bogus Netscape 'button' input type
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272 ;; that lots of places have been using to slap javascript shit onto
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273 (let ((val (w3-form-element-value el)))
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274 (if (or (not val) (string= val ""))
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275 (setq val "Push Me"))
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82
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276 (widget-create 'push-button
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277 :notify 'ignore
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278 :button-face face
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279 val)))
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280
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281 (defun w3-form-create-image (el face)
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282 (let ((widget (widget-create 'push-button
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283 :notify 'w3-form-submit/reset-callback
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284 :value "Form-Image")))
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285 widget))
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286
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287 (defun w3-form-create-submit-button (el face)
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288 (let ((val (w3-form-element-value el)))
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289 (if (or (not val) (string= val ""))
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290 (setq val (if (eq (w3-form-element-type el) 'submit)
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291 "Submit"
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292 "Reset")))
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293 (widget-create 'push-button
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294 :notify 'w3-form-submit/reset-callback
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295 :button-face face val)))
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296
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297 (defun w3-form-create-file-browser (el face)
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82
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298 (widget-create 'file
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299 :value-face face
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300 :size (w3-form-element-size el)
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301 :must-match t
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302 :value (w3-form-element-value el)))
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303
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304 (defvar w3-form-valid-key-sizes
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305 '(
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306 ("1024 (Premium)" . 1024)
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307 ("896 (Regular)" . 896)
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308 ("768 (Unleaded)" . 768)
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309 ("512 (Low Grade)" . 512)
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310 ("508 (Woos)" . 508)
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311 ("256 (Test Grade)" . 256)
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312 )
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313 "An assoc list of available key sizes and meaningful descriptions.")
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314
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0
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315 (defun w3-form-create-keygen-list (el face)
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70
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316 (let ((tmp w3-form-valid-key-sizes)
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317 (longest 0)
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318 (options nil))
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319 (while tmp
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320 (if (> (length (caar tmp)) longest)
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321 (setq longest (length (caar tmp))))
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322 (setq options (cons (list 'choice-item :tag (caar tmp)
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323 :value (cdar tmp)) options)
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324 tmp (cdr tmp)))
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80
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325 (apply 'widget-create 'menu-choice
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326 :value 1024
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327 :ignore-case t
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328 :tag "Key Length"
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70
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329 :size (1+ longest)
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0
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330 :value-face face
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331 options)))
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332
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333 (defun w3-form-create-option-list (el face)
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86
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334 (let* ((size (w3-form-determine-size el nil))
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335 (widget (apply 'widget-create 'menu-choice
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80
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336 :value (w3-form-element-value el)
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337 :ignore-case t
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0
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338 :tag "Choose"
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2
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339 :format "%v"
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86
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340 :size size
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0
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341 :value-face face
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342 (mapcar
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343 (function
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344 (lambda (x)
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345 (list 'choice-item :format "%[%t%]"
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82
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346 :emacspeak-help 'w3-form-summarize-field
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86
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347 :tag (mule-truncate-string (car x) size ? )
|
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82
|
348 :value (car x))))
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80
|
349 (w3-form-element-options el)))))
|
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2
|
350 (widget-value-set widget (w3-form-element-value el))
|
|
0
|
351 widget))
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|
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352
|
|
|
353 ;(defun w3-form-create-multiline (el face)
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82
|
354 ; (widget-create 'text :value-face face (w3-form-element-value el)))
|
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0
|
355
|
|
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356 (defun w3-form-create-multiline (el face)
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82
|
357 (widget-create 'push-button
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358 :notify 'w3-do-text-entry
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359 "Multiline text area"))
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360
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|
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361 (defun w3-form-create-integer (el face)
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362 (widget-create 'integer
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363 :size (w3-form-element-size el)
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364 :value-face face
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365 :tag ""
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366 :format "%v"
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367 :keymap w3-form-keymap
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368 :w3-form-data el
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369 (w3-form-element-value el)))
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370
|
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371 (defun w3-form-create-float (el face)
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372 (widget-create 'number
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373 :size (w3-form-element-size el)
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374 :value-face face
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375 :format "%v"
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376 :tag ""
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377 :keymap w3-form-keymap
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378 :w3-form-data el
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|
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379 (w3-form-element-value el)))
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|
0
|
380
|
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86
|
381 (defun w3-form-create-text (el face)
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382 (widget-create 'editable-field
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383 :keymap w3-form-keymap
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384 :size (w3-form-element-size el)
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385 :value-face face
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386 :w3-form-data el
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387 (w3-form-element-value el)))
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388
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0
|
389 (defun w3-form-default-widget-creator (el face)
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390 (widget-create 'link
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391 :notify 'w3-form-default-button-callback
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82
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392 :value-to-internal 'w3-form-default-button-update
|
|
0
|
393 :size (w3-form-element-size el)
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|
|
394 :value-face face
|
|
82
|
395 :w3-form-data el
|
|
0
|
396 (w3-form-element-value el)))
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|
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397
|
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82
|
398 (defun w3-form-default-button-update (w v)
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399 (let ((info (widget-get w :w3-form-data)))
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400 (widget-put w :tag
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401 (if info
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402 (mule-truncate-string
|
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403 (if (eq 'password (w3-form-element-type info))
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404 (make-string (length v) ?*)
|
|
|
405 v)
|
|
|
406 (w3-form-element-size info) ?_)))
|
|
|
407 v))
|
|
|
408
|
|
0
|
409 (defun w3-form-default-button-callback (widget &rest ignore)
|
|
82
|
410 (let* ((obj (widget-get widget :w3-form-data))
|
|
0
|
411 (typ (w3-form-element-type obj))
|
|
|
412 (def (widget-value widget))
|
|
|
413 (val nil)
|
|
|
414 )
|
|
|
415 (case typ
|
|
|
416 (password
|
|
82
|
417 (setq val (funcall url-passwd-entry-func "Password: " def)))
|
|
0
|
418 (otherwise
|
|
|
419 (setq val (read-string
|
|
82
|
420 (concat (capitalize (symbol-name typ)) ": ") def))))
|
|
0
|
421 (widget-value-set widget val))
|
|
|
422 (apply 'w3-form-possibly-submit widget ignore))
|
|
82
|
423
|
|
|
424 ;; These properties tell the help-echo function how to summarize each
|
|
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425 ;; type of widget.
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|
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426 (put 'checkbox 'w3-summarize-function 'w3-form-summarize-checkbox)
|
|
|
427 (put 'multiline 'w3-summarize-function 'w3-form-summarize-multiline)
|
|
|
428 (put 'radio 'w3-summarize-function 'w3-form-summarize-radio-button)
|
|
|
429 (put 'reset 'w3-summarize-function 'w3-form-summarize-submit-button)
|
|
|
430 (put 'submit 'w3-summarize-function 'w3-form-summarize-submit-button)
|
|
|
431 (put 'button 'w3-summarize-function 'w3-form-summarize-submit-button)
|
|
|
432 (put 'file 'w3-summarize-function 'w3-form-summarize-file-browser)
|
|
|
433 (put 'option 'w3-summarize-function 'w3-form-summarize-option-list)
|
|
|
434 (put 'keygen 'w3-summarize-function 'w3-form-summarize-keygen-list)
|
|
|
435 (put 'image 'w3-summarize-function 'w3-form-summarize-image)
|
|
|
436 (put 'hidden 'w3-summariez-function 'ignore)
|
|
16
|
437
|
|
82
|
438 (defun w3-form-summarize-field (widget &rest ignore)
|
|
|
439 "Sumarize a widget that should be a W3 form entry area.
|
|
|
440 This can be used as the :help-echo property of all w3 form entry widgets."
|
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|
441 (let ((info nil)
|
|
|
442 (func nil)
|
|
|
443 (msg nil)
|
|
|
444 )
|
|
|
445 (setq info (widget-get widget :w3-form-data))
|
|
|
446 (if info
|
|
|
447 nil
|
|
|
448 (while (widget-get widget :parent)
|
|
|
449 (setq widget (widget-get widget :parent)))
|
|
|
450 (setq info (widget-get widget :w3-form-data)))
|
|
|
451 (if (not info)
|
|
|
452 (signal 'wrong-type-argument (list 'w3-form-widget widget)))
|
|
|
453 (setq func (or (get (w3-form-element-type info) 'w3-summarize-function)
|
|
|
454 'w3-form-summarize-default)
|
|
|
455 msg (and (fboundp func) (funcall func info widget)))
|
|
|
456 ;; FIXME! This should be removed once emacspeak is updated to
|
|
|
457 ;; more closely follow the widget-y way of just returning the string
|
|
|
458 ;; instead of having the underlying :help-echo or :emacspeak-help
|
|
|
459 ;; implementation do it.
|
|
|
460 (message "%s" msg)))
|
|
|
461
|
|
|
462 (defsubst w3-form-field-label (data)
|
|
|
463 ;;; FIXXX!!! Need to reimplement using the new forms implementation!
|
|
|
464 (declare (special w3-form-labels))
|
|
|
465 nil)
|
|
|
466
|
|
|
467 (defun w3-form-summarize-default (data widget)
|
|
|
468 (let ((label (w3-form-field-label data))
|
|
|
469 (name (w3-form-element-name data))
|
|
|
470 (value (widget-value (w3-form-element-widget data))))
|
|
|
471 (format "Text field %s set to: %s" (or label (concat "called " name))
|
|
|
472 value)))
|
|
|
473
|
|
|
474 (defun w3-form-summarize-multiline (data widget)
|
|
|
475 (let ((name (w3-form-element-name data))
|
|
|
476 (label (w3-form-field-label data))
|
|
|
477 (value (w3-form-element-value data)))
|
|
|
478 (format "Multiline text input %s set to: %s"
|
|
|
479 (or label (concat "called " name))
|
|
|
480 value)))
|
|
|
481
|
|
|
482 (defun w3-form-summarize-checkbox (data widget)
|
|
|
483 (let ((name (w3-form-element-name data))
|
|
|
484 (label (w3-form-field-label data))
|
|
|
485 (checked (widget-value (w3-form-element-widget data))))
|
|
|
486 (format "Checkbox %s is %s" (or label name) (if checked "on" "off"))))
|
|
|
487
|
|
|
488 (defun w3-form-summarize-option-list (data widget)
|
|
|
489 (let ((name (w3-form-element-name data))
|
|
|
490 (label (w3-form-field-label data))
|
|
|
491 (default (w3-form-element-default-value data)))
|
|
|
492 (format "Option list (%s) set to: %s" (or label name)
|
|
|
493 (widget-value (w3-form-element-widget data)))))
|
|
|
494
|
|
|
495 (defun w3-form-summarize-image (data widget)
|
|
|
496 (let ((name (w3-form-element-name data))
|
|
|
497 (label (w3-form-field-label data)))
|
|
|
498 (concat "Image entry " (or label (concat "called " name)))))
|
|
|
499
|
|
|
500 (defun w3-form-summarize-submit-button (data widget)
|
|
|
501 (let* ((type (w3-form-element-type data))
|
|
|
502 (label (w3-form-field-label data))
|
|
|
503 (button-text (widget-value (w3-form-element-widget data)))
|
|
|
504 (type-desc (case type
|
|
|
505 (submit "Submit Form")
|
|
|
506 (reset "Reset Form")
|
|
|
507 (button "A Button"))))
|
|
|
508 (format "%s: %s" type-desc (or label button-text ""))))
|
|
|
509
|
|
|
510 (defun w3-form-summarize-radio-button (data widget)
|
|
|
511 (let ((name (w3-form-element-name data))
|
|
|
512 (label (w3-form-field-label data))
|
|
|
513 (cur-value (widget-value (w3-form-element-widget data)))
|
|
|
514 (this-value (widget-value widget)))
|
|
|
515 (format "Radio button %s is %s, could be %s" (or label name) cur-value
|
|
|
516 this-value)))
|
|
|
517
|
|
|
518 (defun w3-form-summarize-file-browser (data widget)
|
|
|
519 (let ((name (w3-form-element-name data))
|
|
|
520 (label (w3-form-field-label data))
|
|
|
521 (file (widget-value (w3-form-element-widget data))))
|
|
|
522 (format "File entry %s pointing to: %s" (or label name) (or file
|
|
|
523 "[nothing]"))))
|
|
|
524
|
|
|
525 (defun w3-form-summarize-keygen-list (data widget)
|
|
|
526 )
|
|
|
527
|
|
|
528
|
|
86
|
529 (defun w3-form-maybe-submit-by-keypress ()
|
|
|
530 (interactive)
|
|
|
531 (let ((widget (widget-at (point))))
|
|
|
532 (if widget
|
|
|
533 (w3-form-possibly-submit widget))))
|
|
|
534
|
|
0
|
535 (defun w3-form-possibly-submit (widget &rest ignore)
|
|
82
|
536 (let* ((formobj (widget-get widget :w3-form-data))
|
|
0
|
537 (ident (w3-form-element-action formobj))
|
|
|
538 (widgets (w3-all-widgets ident))
|
|
|
539 (text-fields 0)
|
|
|
540 (text-p nil))
|
|
|
541 ;;
|
|
|
542 ;; Gack. Netscape auto-submits forms of one text field
|
|
|
543 ;; here we go through the list of widgets in this form and
|
|
|
544 ;; determine which are not submit/reset/button inputs.
|
|
|
545 ;; If the # == 1, then submit the form.
|
|
|
546 ;;
|
|
|
547 (while widgets
|
|
|
548 (setq text-fields (+
|
|
|
549 text-fields
|
|
|
550 (case (w3-form-element-type (car widgets))
|
|
|
551 ((submit reset image button)
|
|
|
552 0)
|
|
|
553 (text
|
|
|
554 (setq text-p t)
|
|
|
555 1)
|
|
|
556 (otherwise
|
|
|
557 1)))
|
|
|
558 widgets (cdr widgets)))
|
|
|
559 (if (and (= text-fields 1) text-p)
|
|
|
560 (w3-submit-form ident))))
|
|
|
561
|
|
|
562 (defun w3-form-submit/reset-callback (widget &rest ignore)
|
|
82
|
563 (let* ((formobj (widget-get widget :w3-form-data))
|
|
0
|
564 (w3-submit-button formobj))
|
|
|
565 (case (w3-form-element-type formobj)
|
|
|
566 (submit (w3-submit-form (w3-form-element-action formobj)))
|
|
|
567 (reset (w3-revert-form (w3-form-element-action formobj)))
|
|
|
568 (image (w3-submit-form (w3-form-element-action formobj)))
|
|
|
569 (otherwise
|
|
|
570 (error
|
|
|
571 "Impossible widget type %s triggered w3-form-submit/reset-callback"
|
|
|
572 (w3-form-element-type formobj))))))
|
|
|
573
|
|
|
574 (defun w3-do-text-entry (widget &rest ignore)
|
|
|
575 (let* ((data (list widget (current-buffer)))
|
|
82
|
576 (formobj (widget-get widget :w3-form-data))
|
|
0
|
577 (buff (get-buffer-create (format "Form Entry: %s"
|
|
|
578 (w3-form-element-name formobj)))))
|
|
|
579 (switch-to-buffer-other-window buff)
|
|
|
580 (indented-text-mode)
|
|
|
581 (erase-buffer)
|
|
|
582 (if (w3-form-element-value formobj)
|
|
|
583 (insert (w3-form-element-value formobj)))
|
|
|
584 (setq w3-current-last-buffer data)
|
|
|
585 (message "Press C-c C-c when finished with text entry.")
|
|
|
586 (local-set-key "\C-c\C-c" 'w3-finish-text-entry)))
|
|
|
587
|
|
|
588 (defun w3-finish-text-entry ()
|
|
|
589 (interactive)
|
|
|
590 (if w3-current-last-buffer
|
|
|
591 (let* ((widget (nth 0 w3-current-last-buffer))
|
|
82
|
592 (formobj (widget-get widget :w3-form-data))
|
|
0
|
593 (buff (nth 1 w3-current-last-buffer))
|
|
|
594 (valu (buffer-string))
|
|
|
595 (inhibit-read-only t)
|
|
|
596 )
|
|
|
597 (local-set-key "\C-c\C-c" 'undefined)
|
|
|
598 (kill-buffer (current-buffer))
|
|
|
599 (condition-case ()
|
|
|
600 (delete-window)
|
|
|
601 (error nil))
|
|
|
602 (if (not (and buff (bufferp buff) (buffer-name buff)))
|
|
|
603 (message "Could not find the form buffer for this text!")
|
|
|
604 (switch-to-buffer buff)
|
|
|
605 (w3-form-element-set-value formobj valu)))))
|
|
|
606
|
|
|
607 (defsubst w3-all-widgets (actn)
|
|
|
608 ;; Return a list of data entry widgets in form number ACTN
|
|
|
609 (cdr-safe (assoc actn w3-form-elements)))
|
|
|
610
|
|
|
611 (defun w3-revert-form (actn)
|
|
|
612 (save-excursion
|
|
|
613 (let* ((formobjs (w3-all-widgets actn))
|
|
|
614 (inhibit-read-only t)
|
|
|
615 deft type widget formobj)
|
|
|
616 (while formobjs
|
|
|
617 (setq formobj (car formobjs)
|
|
|
618 widget (w3-form-element-widget formobj)
|
|
|
619 formobjs (cdr formobjs)
|
|
|
620 deft (w3-form-element-default-value formobj)
|
|
|
621 type (w3-form-element-type formobj))
|
|
|
622 (case type
|
|
70
|
623 ((submit reset image) nil)
|
|
0
|
624 (radio
|
|
82
|
625 (setq deft (widget-get widget 'w3-form-default-value))
|
|
|
626 (if (and widget deft)
|
|
|
627 (widget-value-set widget deft)))
|
|
0
|
628 (checkbox
|
|
|
629 (if deft
|
|
|
630 (widget-value-set widget t)
|
|
|
631 (widget-value-set widget nil)))
|
|
82
|
632 (multiline
|
|
|
633 (w3-form-element-set-value formobj (w3-form-element-default-value
|
|
|
634 formobj)))
|
|
0
|
635 (file
|
|
|
636 (widget-value-set widget deft))
|
|
|
637 (otherwise
|
|
86
|
638 (widget-value-set widget deft))))
|
|
|
639 (widget-setup))))
|
|
0
|
640
|
|
|
641 (defun w3-form-encode-helper (formobjs)
|
|
|
642 (let (
|
|
|
643 (submit-button-data w3-submit-button)
|
|
|
644 formobj result widget temp type)
|
|
|
645 (while formobjs
|
|
|
646 (setq formobj (car formobjs)
|
|
|
647 type (w3-form-element-type formobj)
|
|
|
648 widget (w3-form-element-widget formobj)
|
|
|
649 formobjs (cdr formobjs)
|
|
|
650 temp (case type
|
|
|
651 (reset nil)
|
|
86
|
652 (button nil)
|
|
0
|
653 (image
|
|
|
654 (if (and (eq submit-button-data formobj)
|
|
|
655 (w3-form-element-name formobj))
|
|
|
656 (setq result (append
|
|
|
657 (list
|
|
|
658 (cons
|
|
|
659 (concat (w3-form-element-name formobj)
|
|
|
660 ".x") "0")
|
|
|
661 (cons
|
|
|
662 (concat (w3-form-element-name formobj)
|
|
|
663 ".y") "0"))
|
|
|
664 result)))
|
|
|
665 nil)
|
|
|
666 (submit
|
|
|
667 (if (and (eq submit-button-data formobj)
|
|
|
668 (w3-form-element-name formobj))
|
|
|
669 (cons (w3-form-element-name formobj)
|
|
|
670 (w3-form-element-value formobj))))
|
|
|
671 (radio
|
|
2
|
672 (let* ((radio-name (w3-form-element-name formobj))
|
|
|
673 (radio-object (cdr-safe
|
|
82
|
674 (assoc
|
|
|
675 (cons
|
|
|
676 radio-name
|
|
|
677 (w3-form-element-action formobj))
|
|
|
678 w3-form-radio-elements)))
|
|
2
|
679 (chosen-widget (and radio-object
|
|
|
680 (widget-radio-chosen
|
|
|
681 (w3-form-element-widget
|
|
|
682 radio-object)))))
|
|
|
683 (if (assoc radio-name result)
|
|
0
|
684 nil
|
|
2
|
685 (cons radio-name (widget-value chosen-widget)))))
|
|
82
|
686 ((int float)
|
|
|
687 (cons (w3-form-element-name formobj)
|
|
|
688 (number-to-string (or (condition-case ()
|
|
|
689 (widget-value widget)
|
|
|
690 (error nil)) 0))))
|
|
0
|
691 (checkbox
|
|
|
692 (if (widget-value widget)
|
|
|
693 (cons (w3-form-element-name formobj)
|
|
|
694 (w3-form-element-value formobj))))
|
|
|
695 (file
|
|
|
696 (let ((dat nil)
|
|
|
697 (fname (widget-value widget)))
|
|
|
698 (save-excursion
|
|
|
699 (set-buffer (get-buffer-create " *w3-temp*"))
|
|
|
700 (erase-buffer)
|
|
|
701 (setq dat
|
|
|
702 (condition-case ()
|
|
|
703 (insert-file-contents-literally fname)
|
|
|
704 (error (concat "Error accessing " fname))))
|
|
|
705 (cons (w3-form-element-name formobj) dat))))
|
|
|
706 (option
|
|
|
707 (cons (w3-form-element-name formobj)
|
|
2
|
708 (cdr-safe
|
|
|
709 (assoc (widget-value widget)
|
|
|
710 (w3-form-element-options formobj)))))
|
|
0
|
711 (keygen
|
|
70
|
712 (cons (w3-form-element-name formobj)
|
|
|
713 (format "Should create a %d bit RSA key"
|
|
|
714 (widget-value widget))))
|
|
0
|
715 ((multiline hidden)
|
|
|
716 (cons (w3-form-element-name formobj)
|
|
|
717 (w3-form-element-value formobj)))
|
|
|
718 (otherwise
|
|
|
719 (cons (w3-form-element-name formobj)
|
|
|
720 (widget-value widget)))))
|
|
|
721 (if temp
|
|
|
722 (setq result (cons temp result))))
|
|
|
723 result))
|
|
|
724
|
|
|
725 (defun w3-form-encode-make-mime-part (id data separator)
|
|
|
726 (concat separator "\nContent-id: " id
|
|
|
727 "\nContent-length: " (length data)
|
|
|
728 "\n\n" data))
|
|
|
729
|
|
|
730 (defun w3-form-encode-multipart/x-www-form-data (formobjs)
|
|
|
731 ;; Create a multipart form submission.
|
|
|
732 ;; Returns a cons of two strings. Car is the separator used.
|
|
|
733 ;; cdr is the body of the MIME message."
|
|
|
734 (let ((separator "---some-separator-for-www-form-data"))
|
|
|
735 (cons separator
|
|
|
736 (mapconcat
|
|
|
737 (function
|
|
|
738 (lambda (formobj)
|
|
|
739 (w3-form-encode-make-mime-part (car formobj) (cdr formobj)
|
|
|
740 separator)))
|
|
|
741 (w3-form-encode-helper formobjs)
|
|
|
742 "\n"))))
|
|
|
743
|
|
|
744 (fset 'w3-form-encode-multipart/form-data
|
|
|
745 'w3-form-encode-multipart/x-www-form-data)
|
|
|
746 (fset 'w3-form-encode- 'w3-form-encode-application/x-www-form-urlencoded)
|
|
|
747
|
|
|
748 (defun w3-next-widget (pos)
|
|
|
749 (let* ((next (cond ((get-text-property pos 'button)
|
|
|
750 (next-single-property-change pos 'button))
|
|
|
751 ((get-text-property pos 'field)
|
|
|
752 (next-single-property-change pos 'field))
|
|
|
753 (t pos)))
|
|
80
|
754 (button (and next (next-single-property-change next 'button)))
|
|
|
755 (field (and next (next-single-property-change next 'field))))
|
|
0
|
756 (setq next
|
|
|
757 (cond
|
|
|
758 ((and button field) (min button field))
|
|
|
759 (button button)
|
|
|
760 (field field)
|
|
|
761 (t nil)))
|
|
|
762 (and next
|
|
|
763 (or (get-text-property next 'button)
|
|
|
764 (get-text-property next 'field)))))
|
|
|
765
|
|
|
766 (defun w3-form-encode (result &optional enctype)
|
|
|
767 "Create a string suitably encoded for a URL request."
|
|
|
768 (let ((func (intern (concat "w3-form-encode-" enctype))))
|
|
2
|
769 (if (fboundp func)
|
|
|
770 (funcall func result)
|
|
|
771 (w3-warn 'html (format "Bad encoding type for form data: %s" enctype))
|
|
|
772 (w3-form-encode-application/x-www-form-urlencoded result))))
|
|
0
|
773
|
|
|
774 (defun w3-form-encode-text/plain (result)
|
|
|
775 (let ((query ""))
|
|
|
776 (setq query
|
|
|
777 (mapconcat
|
|
|
778 (function
|
|
|
779 (lambda (widget)
|
|
|
780 (let ((nam (car widget))
|
|
|
781 (val (cdr widget)))
|
|
|
782 (if (string-match "\n" nam)
|
|
|
783 (setq nam (mapconcat
|
|
|
784 (function
|
|
|
785 (lambda (x)
|
|
|
786 (if (= x ?\n) "," (char-to-string x))))
|
|
|
787 nam "")))
|
|
|
788 (concat nam " " val))))
|
|
|
789 (w3-form-encode-helper result) "\n"))
|
|
|
790 query))
|
|
|
791
|
|
70
|
792 (defun w3-form-encode-application/x-w3-wais (result)
|
|
|
793 (cdr (car (w3-form-encode-helper result))))
|
|
|
794
|
|
0
|
795 (defun w3-form-encode-application/x-gopher-query (result)
|
|
2
|
796 (concat "\t" (cdr (car (w3-form-encode-helper result)))))
|
|
0
|
797
|
|
|
798 (defun w3-form-encode-xwfu (chunk)
|
|
|
799 "Escape characters in a string for application/x-www-form-urlencoded.
|
|
|
800 Blasphemous crap because someone didn't think %20 was good enough for encoding
|
|
|
801 spaces. Die Die Die."
|
|
|
802 (mapconcat
|
|
|
803 (function
|
|
|
804 (lambda (char)
|
|
|
805 (cond
|
|
|
806 ((= char ? ) "+")
|
|
80
|
807 ((memq char url-unreserved-chars) (char-to-string char))
|
|
2
|
808 (t (upcase (format "%%%02x" char))))))
|
|
80
|
809 (mule-encode-string chunk) ""))
|
|
0
|
810
|
|
|
811 (defun w3-form-encode-application/x-www-form-urlencoded (result)
|
|
|
812 (mapconcat
|
|
|
813 (function
|
|
|
814 (lambda (data)
|
|
|
815 (concat (w3-form-encode-xwfu (car data)) "="
|
|
|
816 (w3-form-encode-xwfu (cdr data)))))
|
|
|
817 (w3-form-encode-helper result) "&"))
|
|
|
818
|
|
|
819 (defun w3-form-encode-application/x-w3-isindex (result)
|
|
|
820 (let* ((info (w3-form-encode-helper result))
|
|
|
821 (query (cdr-safe (assoc "isindex" info))))
|
|
|
822 (if query
|
|
|
823 (url-hexify-string query)
|
|
|
824 "")))
|
|
|
825
|
|
|
826 (defun w3-form-encode-application/gopher-ask-block (result)
|
|
|
827 (let ((query ""))
|
|
|
828 ;;; gopher+ will expect all the checkboxes/etc, even if they are
|
|
|
829 ;;; not turned on. Should still ignore RADIO boxes that are not
|
|
|
830 ;;; active though.
|
|
|
831 (while result
|
|
|
832 (if (and (not (and (string= (nth 2 (car result)) "RADIO")
|
|
|
833 (not (nth 6 (car result)))))
|
|
|
834 (not (member (nth 2 (car result)) '("SUBMIT" "RESET"))))
|
|
|
835 (setq query (format "%s\r\n%s" query (nth 5 (car result)))))
|
|
|
836 (setq result (cdr result)))
|
|
|
837 (concat query "\r\n.\r\n")))
|
|
|
838
|
|
|
839 (defun w3-submit-form (ident)
|
|
|
840 ;; Submit form entry fields matching ACTN as their action identifier.
|
|
|
841 (let* ((result (w3-all-widgets ident))
|
|
80
|
842 (enctype (or (cdr (assq 'enctype ident))
|
|
|
843 "application/x-www-form-urlencoded"))
|
|
0
|
844 (query (w3-form-encode result enctype))
|
|
|
845 (themeth (upcase (or (cdr (assq 'method ident)) "get")))
|
|
|
846 (theurl (cdr (assq 'action ident))))
|
|
|
847 (if (and (string= "GET" themeth)
|
|
|
848 (string-match "\\([^\\?]*\\)\\?" theurl))
|
|
|
849 (setq theurl (url-match theurl 1)))
|
|
|
850 (cond
|
|
|
851 ((or (string= "POST" themeth)
|
|
|
852 (string= "PUT" themeth))
|
|
|
853 (if (consp query)
|
|
|
854 (setq enctype (concat enctype "; separator=\""
|
|
|
855 (substring (car query) 3 nil)
|
|
|
856 "\"")
|
|
|
857 query (cdr query)))
|
|
|
858 (let ((url-request-method themeth)
|
|
|
859 (url-request-data query)
|
|
|
860 (url-request-extra-headers
|
|
|
861 (cons (cons "Content-type" enctype) url-request-extra-headers)))
|
|
|
862 (w3-fetch theurl)))
|
|
|
863 ((string= "GET" themeth)
|
|
2
|
864 (let ((theurl (concat theurl (if (string-match "gopher" enctype)
|
|
|
865 "" "?") query)))
|
|
0
|
866 (w3-fetch theurl)))
|
|
|
867 (t
|
|
|
868 (w3-warn 'html (format "Unknown submit method: %s" themeth))
|
|
|
869 (let ((theurl (concat theurl "?" query)))
|
|
|
870 (w3-fetch theurl))))))
|
|
|
871
|
|
|
872 (provide 'w3-forms)
|
