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1 ;;; w3-xemac.el --- XEmacs specific functions for emacs-w3
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2 ;; Author: wmperry
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3 ;; Created: 1997/03/09 01:59:33
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4 ;; Version: 1.16
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5 ;; Keywords: faces, help, mouse, hypermedia
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1993 - 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 (require 'w3-imap)
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30 (require 'images)
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31 (require 'w3-widget)
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32 (require 'w3-menu)
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33 (require 'w3-forms)
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34 (require 'w3-script)
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35 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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36 ;;; Enhancements For XEmacs
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37 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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38 (defun w3-mouse-handler (e)
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39 "Function to message the url under the mouse cursor"
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40 (interactive "e")
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41 (let* ((pt (event-point e))
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42 (good (eq (event-window e) (selected-window)))
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43 (mouse-events))
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44 (if (not (and good pt (number-or-marker-p pt)))
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45 nil
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46 (if (and inhibit-help-echo w3-track-mouse)
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47 (widget-echo-help pt))
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48 (setq mouse-events (w3-script-find-event-handlers pt 'mouse))
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49 (if (assq 'onmouseover mouse-events)
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50 (w3-script-evaluate-form (cdr (assq 'onmouseover mouse-events)))))))
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51
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52 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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53 ;;; Functions to build menus of urls
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54 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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55 (defun w3-setup-version-specifics ()
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56 "Set up routine for XEmacs 19.12 or later"
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57 ;; Create the toolbar buttons
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58 (and (featurep 'toolbar)
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59 (w3-toolbar-make-buttons))
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60
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61 ;; Register the default set of image conversion utilities
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62 (image-register-netpbm-utilities)
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63
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64 ;; Add our menus, but make sure that we do it to the global menubar
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65 ;; not the current one, which could be anything, but usually GNUS or
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66 ;; VM if not the default.
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67 (if (featurep 'menubar)
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68 (let ((current-menubar (default-value 'current-menubar)))
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69 (if current-menubar
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70 (add-submenu '("Help") (cons "WWW" (cdr w3-menu-help-menu))))))
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71
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72 ;; FIXME FIXME: Do sexy things to the default modeline for Emacs-W3
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73
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74 ;; The following is a workaround for XEmacs 19.14 and XEmacs 20.0
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75 ;; The text property implementation is badly broken - you could not have
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76 ;; a text property with a `nil' value. Bad bad bad.
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77 (if (or (and (= emacs-major-version 20)
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78 (= emacs-minor-version 0))
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79 (and (= emacs-major-version 19)
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80 (= emacs-minor-version 14)))
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81 (defun text-prop-extent-paste-function (ext from to)
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82 (let ((prop (extent-property ext 'text-prop nil))
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83 (val nil))
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84 (if (null prop)
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85 (error "Internal error: no text-prop"))
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86 (setq val (extent-property ext prop nil))
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87 (put-text-property from to prop val nil)
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88 nil))
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89 )
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90 )
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91
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92 (defun w3-store-in-clipboard (str)
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93 "Store string STR into the clipboard in X"
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94 (cond
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95 ((eq (device-type) 'tty)
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96 nil)
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97 ((eq (device-type) 'x)
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98 (x-own-selection str))
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99 ((eq (device-type) 'ns)
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100 )
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101 (t nil)))
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102
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103 (defun w3-color-light-p (color-or-face)
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104 (let (face color)
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105 (cond
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106 ((or (facep color-or-face)
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107 (and (symbolp color-or-face)
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108 (find-face color-or-face)))
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109 (setq color (specifier-instance (face-background color-or-face))))
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110 ((color-instance-p color-or-face)
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111 (setq color color-or-face))
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112 ((color-specifier-p color-or-face)
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113 (setq color (specifier-instance color-or-face)))
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114 ((stringp color-or-face)
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115 (setq color (make-color-instance color-or-face)))
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116 (t (signal 'wrong-type-argument 'color-or-face-p)))
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117 (if color
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118 (not (< (apply '+ (color-instance-rgb-components color))
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119 (/ (apply '+ (color-instance-rgb-components
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120 (make-color-instance "white"))) 3)))
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121 t)))
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122
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123 (defun w3-mode-motion-hook (e)
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124 (let* ((glyph (event-glyph e))
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125 (x (and glyph (event-glyph-x-pixel e)))
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126 (y (and glyph (event-glyph-y-pixel e)))
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127 (widget (and glyph (glyph-property glyph 'widget)))
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128 (usemap (and widget (w3-image-widget-usemap widget)))
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129 (ismap (and widget (widget-get widget 'ismap)))
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130 (echo (and widget (widget-get widget 'href))))
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131 (cond
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132 (usemap
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133 (setq echo (w3-point-in-map (vector x y) usemap t)))
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134 (ismap
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135 (setq echo (format "%s?%d,%d" echo x y)))
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136 (t
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137 nil))
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138 (and echo (message "%s" echo))))
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139
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140 (defun w3-mode-version-specifics ()
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141 "XEmacs specific stuff for w3-mode"
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82
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142 (if (featurep 'mouse)
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102
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143 (progn
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144 (if (not w3-track-mouse)
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145 (setq inhibit-help-echo nil))
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146 (setq mode-motion-hook 'w3-mouse-handler)))
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110
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147 (case (device-type)
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148 ((tty stream) ; TTY or batch
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149 nil)
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150 (otherwise
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151 (w3-add-toolbar-to-buffer)))
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152 (setq mode-popup-menu w3-popup-menu))
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153
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154 (require 'w3-toolbar)
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155 (provide 'w3-xemacs)
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156 (provide 'w3-xemac)
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