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1 ;;; w3-prefs.el --- Preferences panels for Emacs-W3
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2 ;; Author: wmperry
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3 ;; Created: 1996/06/30 18:10:45
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4 ;; Version: 1.5
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5 ;; Keywords: hypermedia, preferences
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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 ;;;
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10 ;;; This file is not part of GNU Emacs, but the same permissions apply.
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11 ;;;
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12 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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13 ;;; it under the terms of the GNU General Public License as published by
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14 ;;; the Free Software Foundation; either version 2, or (at your option)
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15 ;;; any later version.
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16 ;;;
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17 ;;; GNU Emacs is distributed in the hope that it will be useful,
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18 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 ;;; GNU General Public License for more details.
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21 ;;;
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22 ;;; You should have received a copy of the GNU General Public License
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23 ;;; along with GNU Emacs; see the file COPYING. If not, write to
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24 ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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25 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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26
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27 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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28 ;;; Preferences panels for Emacs-W3
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29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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30 (require 'widget)
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31 (require 'widget-edit)
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32 (require 'w3-vars)
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33 (require 'w3-keyword)
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34 (require 'w3-widget)
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2
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35 (require 'w3-toolbar)
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36
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37 (defvar w3-preferences-glyph nil)
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38 (defvar w3-preferences-map nil)
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39 (defvar w3-preferences-panel-begin-marker nil)
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40 (defvar w3-preferences-panel-end-marker nil)
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41 (defvar w3-preferences-panels '(
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42 (appearance . "Appearance")
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43 (images . "Images")
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44 (cookies . "HTTP Cookies")
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45 (hooks . "Various Hooks")
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46 (compatibility . "Compatibility")
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47 (proxy . "Proxy")))
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48
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49 (defun w3-preferences-setup-glyph-map ()
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50 (let* ((x 0)
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51 (height (and w3-preferences-glyph
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52 (glyph-height w3-preferences-glyph)))
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53 (width (and height (/ (glyph-width w3-preferences-glyph)
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54 (length w3-preferences-panels)))))
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55 (mapcar
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56 (function
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57 (lambda (region)
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58 (vector "rect" (list (vector (if width (* x width) 0) 0)
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59 (vector (if width (* (setq x (1+ x)) width) 0)
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60 (or height 0)))
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61 (car region) (cdr region))))
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62 w3-preferences-panels)))
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63
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64 (defun w3-preferences-generic-variable-callback (widget &rest ignore)
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65 (condition-case ()
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66 (set (widget-get widget 'variable) (widget-value widget))
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67 (error (message "Invalid or incomplete data..."))))
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68
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69 (defun w3-preferences-restore-variables (vars)
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70 (let ((temp nil))
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71 (while vars
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72 (setq temp (intern (format "w3-preferences-temp-%s" (car vars))))
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73 (set (car vars) (symbol-value temp))
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74 (setq vars (cdr vars)))))
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75
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76 (defun w3-preferences-create-temp-variables (vars)
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77 (let ((temp nil))
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78 (while vars
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79 (setq temp (intern (format "w3-preferences-temp-%s" (car vars))))
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80 (set (make-local-variable temp) (symbol-value (car vars)))
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81 (setq vars (cdr vars)))))
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82
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83
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84 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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85 ;;; Appearance of the frame / pages
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86 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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87 (defun w3-preferences-init-appearance-panel ()
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88 (let ((vars '(w3-toolbar-orientation
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89 w3-use-menus
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90 w3-honor-stylesheets
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91 w3-default-stylesheet
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92 w3-default-homepage
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93 w3-toolbar-type))
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94 (temp nil))
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95 (set (make-local-variable 'w3-preferences-temp-use-home-page)
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96 (and w3-default-homepage t))
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97 (w3-preferences-create-temp-variables vars)))
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98
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99 (defun w3-preferences-create-appearance-panel ()
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100 ;; First the toolbars
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101 (widget-insert "\nToolbars\n--------\n")
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102 (widget-insert "\tShow Toolbars as:\t")
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103 (widget-put
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104 (widget-create 'radio
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105 :value (symbol-value 'w3-preferences-temp-w3-toolbar-type)
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106 :notify 'w3-preferences-generic-variable-callback
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107 (list 'item :format "%t\t" :tag "Pictures" :value 'pictures)
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108 (list 'item :format "%t\t" :tag "Text" :value 'text)
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109 (list 'item :format "%t" :tag "Both" :value 'both))
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110 'variable 'w3-preferences-temp-w3-toolbar-type)
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111 (widget-insert "\n\tToolbars appear on ")
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112 (widget-put
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113 (widget-create 'choice
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114 :value (symbol-value 'w3-preferences-temp-w3-toolbar-orientation)
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115 :notify 'w3-preferences-generic-variable-callback
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116 :format "%v"
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117 :tag "Toolbar Position"
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118 (list 'choice-item :format "%[%t%]" :tag "XEmacs Default" :value 'default)
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119 (list 'choice-item :format "%[%t%]" :tag "Top" :value 'top)
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120 (list 'choice-item :format "%[%t%]" :tag "Bottom" :value 'bottom)
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121 (list 'choice-item :format "%[%t%]" :tag "Right" :value 'right)
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122 (list 'choice-item :format "%[%t%]" :tag "Left" :value 'left)
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123 (list 'choice-item :format "%[%t%]" :tag "No Toolbar" :value 'none))
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124 'variable 'w3-preferences-temp-w3-toolbar-orientation)
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125 (widget-insert " side of window.\n")
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126
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127 ;; Home page
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128 (widget-insert "\nStartup\n--------\n\tBrowser starts with:\t")
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129 (widget-put
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130 (widget-create
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131 'radio
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132 :value (symbol-value 'w3-preferences-temp-use-home-page)
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133 :notify 'w3-preferences-generic-variable-callback
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134 (list 'item :format "%t\t" :tag "Blank Page" :value nil)
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135 (list 'item :format "%t" :tag "Home Page Location" :value t))
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136 'variable 'w3-preferences-temp-use-home-page)
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137 (widget-insert "\n\t\tURL: ")
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138 (widget-put
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139 (widget-create
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140 'field
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141 :value (or (symbol-value 'w3-preferences-temp-w3-default-homepage) "None")
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142 :notify 'w3-preferences-generic-variable-callback)
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143 'variable 'w3-preferences-temp-w3-default-homepage)
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144
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145 ;; Stylesheet
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146 (widget-insert "\nStyle\n--------\n\tDefault stylesheet:\t")
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147 (widget-put
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148 (widget-create
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149 'file
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150 :value (or (symbol-value 'w3-preferences-temp-w3-default-stylesheet) "")
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151 :must-match t
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152 :notify 'w3-preferences-generic-variable-callback)
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153 'variable 'w3-preferences-temp-w3-default-stylesheet)
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154 (widget-setup)
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155 )
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156
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157 (defun w3-preferences-save-appearance-panel ()
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158 (let ((vars '(w3-toolbar-orientation
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159 w3-use-menus
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160 w3-honor-stylesheets
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161 w3-default-stylesheet
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162 w3-toolbar-type))
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163 (temp nil))
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164 (if (symbol-value 'w3-preferences-temp-use-home-page)
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165 (setq vars (cons 'w3-default-homepage vars))
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166 (setq w3-default-homepage nil))
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167 (w3-preferences-restore-variables vars)
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168 (w3-toolbar-make-buttons)))
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169
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170
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171 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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172 ;;; The images panel
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173 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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174 (defun w3-preferences-init-images-panel ()
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175 (let ((vars '(w3-delay-image-loads
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176 w3-image-mappings)))
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177 (w3-preferences-create-temp-variables vars)))
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178
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179 (defun w3-preferences-create-images-panel ()
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180 (widget-insert "\n")
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181 (widget-put
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182 (widget-create
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183 'checkbox
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184 :notify 'w3-preferences-generic-variable-callback
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185 :value (symbol-value 'w3-preferences-temp-w3-delay-image-loads))
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186 'variable 'w3-preferences-temp-w3-delay-image-loads)
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187 (widget-insert " Delay Image Loads\n"
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188 ;;; "\nAllowed Image Types\n"
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189 ;;; "-------------------\n")
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190 ;;; (set
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191 ;;; (make-local-variable 'w3-preferences-image-type-widget)
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192 ;;; (widget-create
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193 ;;; 'repeat
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194 ;;; :entry-format "%i %d %v"
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195 ;;; :value (mapcar
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196 ;;; (function
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197 ;;; (lambda (x)
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198 ;;; (list 'item :format "%t" :tag (car x) :value (cdr x))))
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199 ;;; w3-image-mappings)
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200 ;;; '(item :tag "*/*" :value 'unknown)))
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201 ))
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202
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203 (defun w3-preferences-save-images-panel ()
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204 (let ((vars '(w3-delay-image-loads
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205 w3-image-mappings)))
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206 (w3-preferences-restore-variables vars)))
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207
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208 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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209 ;;; The cookies panel
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210 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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211 (defun w3-preferences-init-cookies-panel ()
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212 (let ((cookies url-cookie-storage)
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213 (secure-cookies url-cookie-secure-storage))
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214 )
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215 )
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216
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217 (defun w3-preferences-create-cookies-panel ()
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218 (widget-insert "\n\t\tSorry, not yet implemented.\n\n"))
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219
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220 (defun w3-preferences-save-cookies-panel ()
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221 )
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222
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223
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224 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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225 ;;; The hooks panel
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226 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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227 (defvar w3-preferences-hooks-variables
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228 '(w3-file-done-hook
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229 w3-file-prepare-hook
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230 w3-load-hook
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231 w3-mode-hook
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232 w3-preferences-cancel-hook
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233 w3-preferences-default-hook
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234 w3-preferences-ok-hook
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235 w3-preferences-setup-hook
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236 w3-source-file-hook))
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237
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238 (defun w3-preferences-init-hooks-panel ()
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239 (w3-preferences-create-temp-variables w3-preferences-hooks-variables))
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240
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241 (defun w3-preferences-create-hooks-panel ()
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242 (let ((todo w3-preferences-hooks-variables)
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243 (cur nil)
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244 (pt nil)
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245 (doc nil))
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246 (widget-insert "\n")
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247 (while todo
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248 (setq cur (car todo)
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249 todo (cdr todo)
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250 doc (get cur 'variable-documentation))
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251 (if (string-match "^\\*" doc)
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252 (setq doc (substring doc 1 nil)))
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253 (setq pt (point))
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254 (widget-insert "\n" (symbol-name cur) " - " doc)
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255 (fill-region-as-paragraph pt (point))
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256 (setq cur (intern (format "w3-preferences-temp-%s" cur)))
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257 (widget-put
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258 (widget-create
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259 'sexp
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260 :notify 'w3-preferences-generic-variable-callback
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261 :value (or (symbol-value cur) "nil"))
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262 'variable cur))
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263 (widget-setup)))
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264
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265 (defun w3-preferences-save-hooks-panel ()
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266 (w3-preferences-restore-variables w3-preferences-hooks-variables))
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267
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268
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269 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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270 ;;; The compatibility panel
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271 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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272 (defvar w3-preferences-compatibility-variables
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273 '(
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274 (w3-style-ie-compatibility
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275 . "Internet Explorer (tm) 3.0 compatible stylesheet parsing")
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276 (w3-netscape-compatible-comments
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277 . "Allow Netscape compatible comments")
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278 (w3-user-colors-take-precedence
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279 . "Ignore netscape document color control")
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280 (url-honor-refresh-requests
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281 . "Allow Netscape `Client Pull'"))
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282 "A list of variables that the preferences compability pane knows about.")
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283
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284 (defun w3-preferences-init-compatibility-panel ()
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285 (let ((compat w3-preferences-compatibility-variables)
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286 (cur nil)
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287 (var nil))
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288 (w3-preferences-create-temp-variables
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289 (mapcar 'car w3-preferences-compatibility-variables))))
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290
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291 (defun w3-preferences-create-compatibility-panel ()
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292 (let ((compat w3-preferences-compatibility-variables)
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293 (cur nil)
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294 (var nil))
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295 (widget-insert "\n")
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296 (while compat
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297 (setq cur (car compat)
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298 compat (cdr compat)
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299 var (intern (format "w3-preferences-temp-%s" (car cur))))
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300 (widget-put
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301 (widget-create 'checkbox
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302 :notify 'w3-preferences-generic-variable-callback
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303 :value (symbol-value var))
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304 'variable var)
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305 (widget-insert " " (cdr cur) "\n\n"))
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306 (widget-setup)))
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307
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308 (defun w3-preferences-save-compatibility-panel ()
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309 (w3-preferences-restore-variables
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310 (mapcar 'car w3-preferences-compatibility-variables)))
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311
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312
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313 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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314 ;;; The proxy configuration panel
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315 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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316 (defun w3-preferences-init-proxy-panel ()
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317 (let ((proxies '("FTP" "Gopher" "HTTP" "Security" "WAIS" "SHTTP" "News"))
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318 (proxy nil)
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319 (host-var nil)
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320 (port-var nil)
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321 (urlobj nil))
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322 (widget-insert "\n")
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323 (while proxies
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324 (setq proxy (car proxies)
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325 proxies (cdr proxies)
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326 host-var (intern (format "w3-%s-proxy-host" (downcase proxy)))
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327 port-var (intern (format "w3-%s-proxy-port" (downcase proxy)))
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328 urlobj (url-generic-parse-url
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329 (cdr-safe
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330 (assoc (downcase proxy) url-proxy-services))))
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331 (set (make-local-variable host-var) (or (url-host urlobj) ""))
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332 (set (make-local-variable port-var) (or (url-port urlobj) "")))))
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333
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334 (defun w3-preferences-create-proxy-panel ()
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335 (let ((proxies '("FTP" "Gopher" "HTTP" "Security" "WAIS" "SHTTP" "News"))
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336 (proxy nil)
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337 (host-var nil)
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338 (port-var nil)
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339 (urlobj nil))
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340 (widget-insert "\n")
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341 (while proxies
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342 (setq proxy (car proxies)
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343 proxies (cdr proxies)
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344 host-var (intern (format "w3-%s-proxy-host" (downcase proxy)))
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345 port-var (intern (format "w3-%s-proxy-port" (downcase proxy))))
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346 (widget-insert (format "%10s Proxy: " proxy))
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347 (widget-put
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348 (widget-create 'field
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349 :size 20
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350 :value-face 'underline
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351 :notify 'w3-preferences-generic-variable-callback
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352 :value (format "%-20s" (symbol-value host-var)))
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353 'variable host-var)
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354 (widget-insert " Port: ")
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355 (widget-put
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356 (widget-create 'field
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357 :size 5
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358 :value-face 'underline
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359 :notify 'w3-preferences-generic-variable-callback
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360 :value (format "%5s" (symbol-value port-var)))
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361 'variable port-var)
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362 (widget-insert "\n\n"))
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363 (widget-setup)))
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364
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365 (defun w3-preferences-save-proxy-panel ()
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366 (let ((proxies '("FTP" "Gopher" "HTTP" "Security" "WAIS" "SHTTP" "News"))
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367 (proxy nil)
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368 (host-var nil)
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369 (port-var nil)
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370 (urlobj nil)
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371 (host nil)
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372 (port nil)
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373 (new-proxy-services nil))
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374 (while proxies
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375 (setq proxy (car proxies)
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376 proxies (cdr proxies)
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377 host-var (intern (format "w3-%s-proxy-host" (downcase proxy)))
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378 port-var (intern (format "w3-%s-proxy-port" (downcase proxy)))
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379 urlobj (url-generic-parse-url
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380 (cdr-safe
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381 (assoc (downcase proxy) url-proxy-services)))
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382 host (symbol-value host-var)
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383 port (symbol-value port-var))
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384 (if (and host (/= 0 (length host)))
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385 (setq new-proxy-services (cons (cons (downcase proxy)
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386 (format "http://%s:%s/" host
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387 (or port "80")))
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388 new-proxy-services))))
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389 (setq url-proxy-services new-proxy-services)))
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390
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391 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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392 ;;;
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393 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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394 (defun w3-preferences-create-panel (panel)
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395 (let ((func (intern (format "w3-preferences-create-%s-panel" panel)))
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396 (inhibit-read-only t))
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397 (goto-char w3-preferences-panel-begin-marker)
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398 (delete-region w3-preferences-panel-begin-marker
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399 w3-preferences-panel-end-marker)
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400 (set-marker-insertion-type w3-preferences-panel-end-marker t)
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401 (if (fboundp func)
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402 (funcall func)
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403 (insert (format "You should be seeing %s right now.\n" panel))))
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404 (set-marker-insertion-type w3-preferences-panel-end-marker nil)
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405 (set-marker w3-preferences-panel-end-marker (point))
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406 (goto-char w3-preferences-panel-begin-marker)
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407 (condition-case ()
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408 (widget-forward 1)
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409 (error nil)))
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410
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411 (defun w3-preferences-notify (widget widget-ignore &optional event)
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412 (let* ((glyph (and event w3-running-xemacs (event-glyph event)))
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413 (x (and glyph (w3-glyphp glyph) (event-glyph-x-pixel event)))
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414 (y (and glyph (w3-glyphp glyph) (event-glyph-y-pixel event)))
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415 (map (widget-get widget 'usemap))
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416 (value (widget-value widget)))
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417 (if (and map x y)
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418 (setq value (w3-point-in-map (vector x y) map)))
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419 (if value
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420 (w3-preferences-create-panel value))))
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421
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422 (defun w3-preferences-save-options ()
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423 (w3-menu-save-options))
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424
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425 (defun w3-preferences-ok-callback (widget &rest ignore)
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426 (let ((panels w3-preferences-panels)
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427 (buffer (current-buffer))
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428 (func nil))
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429 (run-hooks 'w3-preferences-ok-hook)
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430 (while panels
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431 (setq func (intern
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432 (format "w3-preferences-save-%s-panel" (caar panels)))
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433 panels (cdr panels))
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434 (if (fboundp func)
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435 (funcall func)))
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436 (w3-preferences-save-options)
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437 (message "Options saved")
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438 (sit-for 1)
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439 (kill-buffer (current-buffer))))
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440
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441 (defun w3-preferences-reset-all-panels ()
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442 (let ((panels w3-preferences-panels)
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443 (func nil))
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444 (while panels
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445 (setq func (intern (format "w3-preferences-init-%s-panel"
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446 (caar panels)))
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447 panels (cdr panels))
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448 (if (and func (fboundp func))
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449 (funcall func)))))
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450
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451 (defun w3-preferences-cancel-callback (widget &rest ignore)
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452 (if (not (funcall url-confirmation-func "Cancel and lose all changes? "))
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453 (error "Not cancelled!"))
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454 (w3-preferences-reset-all-panels)
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455 (kill-buffer (current-buffer))
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456 (run-hooks 'w3-preferences-cancel-hook))
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457
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458 (defun w3-preferences-reset-callback (widget &rest ignore)
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459 (w3-preferences-reset-all-panels)
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460 (run-hooks 'w3-preferences-default-hook)
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461 (w3-preferences-create-panel (caar w3-preferences-panels)))
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462
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463 (defvar w3-preferences-setup-hook nil
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464 "*Hooks to be run before setting up the preferences buffer.")
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465
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466 (defvar w3-preferences-cancel-hook nil
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467 "*Hooks to be run when cancelling the preferences (Cancel was chosen).")
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468
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469 (defvar w3-preferences-default-hook nil
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470 "*Hooks to be run when resetting preference defaults (Defaults was chosen).")
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471
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472 (defvar w3-preferences-ok-hook nil
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473 "*Hooks to be run before saving the preferences (OK was chosen).")
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474
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475 (defun w3-preferences-init-all-panels ()
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476 (let ((todo w3-preferences-panels)
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477 (func nil))
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478 (while todo
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479 (setq func (intern (format "w3-preferences-init-%s-panel" (caar todo)))
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480 todo (cdr todo))
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481 (and (fboundp func) (funcall func)))))
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482
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483 (defun w3-preferences-edit ()
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484 (interactive)
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485 (if (not w3-preferences-map)
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486 (setq w3-preferences-map (w3-preferences-setup-glyph-map)))
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487 (let* ((prefs-buffer (get-buffer-create "W3 Preferences"))
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488 (widget nil)
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489 (inhibit-read-only t)
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490 (window-conf (current-window-configuration)))
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491 (delete-other-windows)
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492 (set-buffer prefs-buffer)
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493 (w3-preferences-init-all-panels)
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494 (set-window-buffer (selected-window) prefs-buffer)
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495 (make-local-variable 'widget-field-face)
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496 (setq w3-preferences-panel-begin-marker (make-marker)
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497 w3-preferences-panel-end-marker (make-marker))
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498 (set-marker-insertion-type w3-preferences-panel-begin-marker nil)
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499 (set-marker-insertion-type w3-preferences-panel-end-marker t)
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500 (use-local-map widget-keymap)
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501 (erase-buffer)
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502 (run-hooks 'w3-preferences-setup-hook)
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503 (setq widget (widget-create 'image
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504 :notify 'w3-preferences-notify
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505 :value 'appearance
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506 :tag "Panel"
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507 'usemap w3-preferences-map))
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508 (goto-char (point-max))
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509 (insert "\n\n")
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510 (set-marker w3-preferences-panel-begin-marker (point))
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511 (set-marker w3-preferences-panel-end-marker (point))
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512 (w3-preferences-create-panel (caar w3-preferences-panels))
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513 (goto-char (point-max))
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514 (widget-insert "\n\n")
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515 (widget-create 'push
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516 :notify 'w3-preferences-ok-callback
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517 :value "Ok")
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518 (widget-insert " ")
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519 (widget-create 'push
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520 :notify 'w3-preferences-cancel-callback
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521 :value "Cancel")
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522 (widget-insert " ")
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523 (widget-create 'push
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524 :notify 'w3-preferences-reset-callback
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525 :value "Reset")
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526 (center-region (point-min) w3-preferences-panel-begin-marker)
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527 (center-region w3-preferences-panel-end-marker (point-max))))
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528
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529 (provide 'w3-prefs)
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