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1 ;;; w3-xemac.el,v --- XEmacs specific functions for emacs-w3
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2 ;; Author: wmperry
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3 ;; Created: 1996/06/06 14:14:34
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4 ;; Version: 1.165
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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, 1994, 1995 by William M. Perry (wmperry@spry.com)
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9 ;;;
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10 ;;; This file is part of GNU Emacs.
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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 (require 'w3-imap)
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28 (require 'images)
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29 (require 'w3-widget)
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30 (require 'w3-menu)
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31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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32 ;;; Enhancements For XEmacs
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33 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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34 (defun w3-mouse-handler (e)
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35 "Function to message the url under the mouse cursor"
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36 (let* ((pt (event-point e))
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37 (props (and pt (extent-properties-at pt)))
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38 (link (nth 1 (nth 1 (memq 'w3 props)))) ; The link info if it exists
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39 (form (nth 1 (memq 'w3form props))) ; The form info it it exists
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40 (dely (nth 0 (nth 1 (memq 'w3delayed props)))) ; The delayed img info
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41 (mpeg (nth 1 (memq 'w3mpeg props))) ; the delayed mpeg info
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42 (imag (nth 1 (memq 'w3graphic props)))) ; The image info if it exists
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43 (cond
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44 (link (message "%s" link))
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45 (form
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46 (let ((args (nth 0 form)))
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47 (cond
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48 ((string= "SUBMIT" (nth 1 form))
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49 (message "Submit form to %s" (cdr-safe (assq 'action args))))
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50 ((string= "RESET" (nth 1 form))
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51 (message "Reset form contents"))
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52 (t
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53 (message "Form entry (name=%s, type=%s)" (nth 2 form)
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54 (if (equal "" (nth 1 form))
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55 "text"
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56 (downcase (nth 1 form))))))))
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57 (dely (message "Delayed image (%s)" (car dely)))
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58 (imag (message "Inlined image (%s)" (car imag)))
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59 (mpeg (message "Delayed mpeg (%s)" (car mpeg)))
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60 (t (message "")))))
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61
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62 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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63 ;;; Functions to build menus of urls
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64 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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65 (defun w3-setup-version-specifics ()
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66 "Set up routine for XEmacs 19.12 or later"
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67 ;; Create the toolbar buttons
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68 (and (featurep 'toolbar)
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69 (w3-toolbar-make-buttons))
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70
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71 ;; Register the default set of image conversion utilities
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72 (image-register-netpbm-utilities)
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73
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74 ;; Add our menus, but make sure that we do it to the global menubar
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75 ;; not the current one, which could be anything, but usually GNUS or
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76 ;; VM if not the default.
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77 (if (featurep 'menubar)
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78 (let ((current-menubar (default-value 'current-menubar)))
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79 (if current-menubar
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80 (add-submenu '("Help") (cons "WWW" (cdr w3-menu-help-menu))))))
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81
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82 )
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83
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84 (defun w3-store-in-clipboard (str)
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85 "Store string STR into the clipboard in X"
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86 (cond
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87 ((eq (device-type) 'tty)
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88 nil)
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89 ((eq (device-type) 'x)
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90 (x-own-selection str))
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91 ((eq (device-type) 'ns)
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92 )
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93 (t nil)))
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94
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95 (defun w3-color-light-p (color-or-face)
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96 (let (face color)
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97 (cond
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98 ((or (facep color-or-face)
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99 (and (symbolp color-or-face)
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100 (find-face color-or-face)))
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101 (setq color (specifier-instance (face-background color-or-face))))
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102 ((color-instance-p color-or-face)
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103 (setq color color-or-face))
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104 ((color-specifier-p color-or-face)
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105 (setq color (specifier-instance color-or-face)))
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106 ((stringp color-or-face)
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107 (setq color (make-color-instance color-or-face)))
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108 (t (signal 'wrong-type-argument 'color-or-face-p)))
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109 (if color
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110 (not (< (apply '+ (color-instance-rgb-components color))
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111 (/ (apply '+ (color-instance-rgb-components
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112 (make-color-instance "white"))) 3)))
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113 t)))
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114
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115 (defun w3-mode-motion-hook (e)
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116 (let* ((glyph (event-glyph e))
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117 (x (and glyph (event-glyph-x-pixel e)))
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118 (y (and glyph (event-glyph-y-pixel e)))
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119 (widget (and glyph (glyph-property glyph 'widget)))
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120 (usemap (and widget (w3-image-widget-usemap widget)))
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121 (ismap (and widget (widget-get widget 'ismap)))
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122 (echo (and widget (widget-get widget 'href))))
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123 (cond
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124 (usemap
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125 (setq echo (w3-point-in-map (vector x y) usemap t)))
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126 (ismap
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127 (setq echo (format "%s?%d,%d" echo x y)))
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128 (t
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129 nil))
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130 (and echo (message "%s" echo))))
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131
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132 (defun w3-mode-version-specifics ()
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133 "XEmacs specific stuff for w3-mode"
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134 (cond
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135 ((not w3-track-mouse)
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136 nil)
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137 ((or (not (boundp 'inhibit-help-echo))
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138 inhibit-help-echo)
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139 (setq mode-motion-hook 'w3-mouse-handler))
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140 (t nil))
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141 (if (eq (device-type) 'tty)
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142 nil
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143 (w3-add-toolbar-to-buffer))
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144 (setq mode-popup-menu w3-popup-menu))
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145
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146 (require 'w3-toolbar)
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147 (provide 'w3-xemacs)
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148 (provide 'w3-xemac)
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