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1 ;;; select.el --- Lisp interface to windows selections.
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2
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3 ;; Copyright (C) 1998 Andy Piper.
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4 ;; Copyright (C) 1990, 1997 Free Software Foundation, Inc.
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5 ;; Copyright (C) 1995 Sun Microsystems.
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851
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6 ;; Copyright (C) 2002 Ben Wing.
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7
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8 ;; Maintainer: XEmacs Development Team
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9 ;; Keywords: extensions, dumped
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify it
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14 ;; 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 ;; XEmacs is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; 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 XEmacs; 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 ;;; Synched up with: Not in FSF
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29
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30 ;;; Commentary:
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31
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32 ;; This file is dumped with XEmacs
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33
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34 ;;; Code:
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35
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2624
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36 ;; We prefer UTF8_STRING to COMPOUND_TEXT because, even though the latter
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37 ;; gives us more information when taking data from other XEmacs invocations,
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38 ;; Mozilla will happily give us broken COMPOUND_TEXT where a non-broken
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39 ;; UTF8_STRING is available.
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40 (defvar selection-preferred-types
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41 (let ((res '(UTF8_STRING COMPOUND_TEXT STRING image/png image/gif
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42 image/jpeg image/tiff image/xpm image/xbm)))
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43 (unless (featurep 'mule) (delq 'COMPOUND_TEXT res))
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44 res)
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45 "An ordered list of X11 type atoms for selections we want to receive.
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46 We prefer UTF8_STRING over COMPOUND_TEXT, for compatibility with a certain
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47 widely-used browser suite, and COMPOUND_TEXT over STRING. (COMPOUND_TEXT
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48 isn't available on non-Mule.) We also accept several image types.
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49
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50 For compatibility, this can be a single atom. ")
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51
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52 ;; Renamed because it was just ridiculous for it to be mostly image formats
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53 ;; and named selected-text-type.
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54 (define-obsolete-variable-alias 'selected-text-type 'selection-preferred-types)
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55
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444
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56 (defvar selection-sets-clipboard nil
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428
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57 "Controls the selection's relationship to the clipboard.
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58 When non-nil, any operation that sets the primary selection will also
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59 set the clipboard.")
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60
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61 (defun copy-primary-selection ()
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62 "Copy the selection to the Clipboard and the kill ring.
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63 This is similar to the command \\[kill-ring-save] except that it will
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64 save to the Clipboard even if that command doesn't, and it handles rectangles
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65 properly."
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66 (interactive)
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67 (and (console-on-window-system-p)
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68 (cut-copy-clear-internal 'copy)))
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69
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70 (defun kill-primary-selection ()
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71 "Copy the selection to the Clipboard and the kill ring, then delete it.
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72 This is similar to the command \\[kill-region] except that it will
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73 save to the Clipboard even if that command doesn't, and it handles rectangles
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74 properly."
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75 (interactive "*")
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76 (and (console-on-window-system-p)
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77 (cut-copy-clear-internal 'cut)))
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78
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79 (defun delete-primary-selection ()
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80 "Delete the selection without copying it to the Clipboard or the kill ring."
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81 (interactive "*")
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82 (and (console-on-window-system-p)
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83 (cut-copy-clear-internal 'clear)))
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84
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85 (defun yank-clipboard-selection ()
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86 "Insert the current Clipboard selection at point."
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87 (interactive "*")
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88 (when (console-on-window-system-p)
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89 (setq last-command nil)
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90 (setq this-command 'yank) ; so that yank-pop works.
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91 (let ((clip (get-clipboard)))
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92 (or clip (error "there is no clipboard selection"))
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93 (push-mark)
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94 (insert clip))))
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95
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96 (defun get-clipboard ()
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97 "Return text pasted to the clipboard.
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98 Not suitable for `interprogram-paste-function', use `get-clipboard-foreign'."
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99 (get-selection 'CLIPBOARD))
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100
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101 (defun get-clipboard-foreign ()
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102 "Return text pasted to the clipboard by another program.
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103 See `interprogram-paste-function' for more information."
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104 (get-selection-foreign 'CLIPBOARD))
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105
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106 (define-device-method get-cutbuffer
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107 "Return the value of one of the cut buffers.
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108 This will do nothing under anything other than X.")
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109
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110 (defun get-selection-no-error (&optional type data-type)
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111 "Return the value of a window-system selection.
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112 The argument TYPE (default `PRIMARY') says which selection, and the argument
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113 DATA-TYPE (defaulting to the value of `selection-preferred-types'), says how
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114 to convert the data. Returns NIL if there is no selection."
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115 (condition-case nil (get-selection type data-type) (t nil)))
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116
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117 (defun get-selection (&optional type data-type)
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118 "Return the value of a window-system selection.
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119 The argument TYPE (default `PRIMARY') says which selection, and the argument
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120 DATA-TYPE (defaulting to the value of, and compatible with,
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121 `selection-preferred-types') says how to convert the data. If
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122 there is no selection an error is signalled. Not suitable in a
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123 `interprogram-paste-function', q.v."
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124 (or type (setq type 'PRIMARY))
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125 (or data-type (setq data-type selection-preferred-types))
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126 (if (consp data-type)
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127 ;; TARGETS is a vector; we want a list so we can memq --> append it to
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128 ;; nil.
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129 (let ((targets (append (get-selection-internal type 'TARGETS) nil))
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130 res)
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131 (catch 'converted
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132 (if targets
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133 (dolist (current-preference data-type)
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134 (condition-case nil
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135 (if (and (memq current-preference targets)
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136 (setq res (get-selection-internal
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137 type current-preference)))
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138 (throw 'converted res))
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139 (selection-conversion-error
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140 nil))))
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141 ;; The source app didn't offer us anything compatible in TARGETS,
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142 ;; or they're not negotiating at all. (That is, we're probably not
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143 ;; on X11.) Try to convert to the types specified by our caller,
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144 ;; and throw an error if the last one of those fails.
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145 (while data-type
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146 (condition-case err
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147 (progn
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148 (setq res (get-selection-internal type (car data-type)))
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149 (if res (throw 'converted res)
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150 (signal 'selection-conversion-error nil)))
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151 (selection-conversion-error
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152 (if (cdr data-type)
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153 (setq data-type (cdr data-type))
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154 (signal (car err) (cdr err))))))))
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155 (get-selection-internal type data-type)))
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156
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847
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157 (defun get-selection-foreign (&optional type data-type)
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158 "Return the value of a window-system selection, or nil if XEmacs owns it.
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159 The argument TYPE (default `PRIMARY') says which selection, and the argument
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160 DATA-TYPE (defaulting to the value of `selection-preferred-types' which see)
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161 says how to convert the data. If there is no selection an error is
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162 signalled. See `interprogram-paste-function' for more information."
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163 (unless (selection-owner-p type)
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164 (get-selection type data-type)))
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165
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428
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166 ;; FSFmacs calls this `x-set-selection', and reverses the
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442
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167 ;; first two arguments (duh ...). This order is more logical.
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168 (defun own-selection (data &optional type how-to-add data-type)
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169 "Make a window-system selection of type TYPE and value DATA.
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170 The argument TYPE (default `PRIMARY') says which selection,
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171 and DATA specifies the contents. DATA may be any lisp data type
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172 that can be converted using the function corresponding to DATA-TYPE
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173 in `select-converter-alist'---strings are the usual choice, but
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174 other types may be permissible depending on the DATA-TYPE parameter
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175 \(if DATA-TYPE is not supplied, the default behavior is window
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176 system specific, but strings are always accepted).
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177 HOW-TO-ADD may be any of the following:
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178
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179 'replace-all or nil -- replace all data in the selection.
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180 'replace-existing -- replace data for specified DATA-TYPE only.
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181 'append or t -- append data to existing DATA-TYPE data.
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182
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183 DATA-TYPE is the window-system specific data type identifier
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184 \(see `register-selection-data-type' for more information).
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185
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186 The selection may also be a cons of two markers pointing to the same buffer,
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187 or an overlay. In these cases, the selection is considered to be the text
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188 between the markers *at whatever time the selection is examined* (note
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189 that the window system clipboard does not necessarily duplicate this
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190 behavior - it doesn't on mswindows for example).
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191 Thus, editing done in the buffer after you specify the selection
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192 can alter the effective value of the selection.
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193
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194 The data may also be a vector of valid non-vector selection values.
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195
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196 Interactively, the text of the region is used as the selection value."
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197 (interactive (if (not current-prefix-arg)
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198 (list (read-string "Store text for pasting: "))
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199 (list (substring (region-beginning) (region-end)))))
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442
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200 ;; calling own-selection-internal will mess this up, so preserve it.
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201 (let ((zmacs-region-stays zmacs-region-stays))
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202 ;FSFmacs huh?? It says:
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203 ;; "This is for temporary compatibility with pre-release Emacs 19."
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204 ;(if (stringp type)
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205 ; (setq type (intern type)))
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206 (or type (setq type 'PRIMARY))
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207 (if (null data)
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208 (disown-selection-internal type)
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209 (own-selection-internal type data how-to-add data-type)
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210 (when (and (eq type 'PRIMARY)
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211 selection-sets-clipboard)
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212 (own-selection-internal 'CLIPBOARD data how-to-add data-type)))
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213 (cond ((eq type 'PRIMARY)
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214 (setq primary-selection-extent
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215 (select-make-extent-for-selection
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216 data primary-selection-extent)))
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217 ((eq type 'SECONDARY)
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218 (setq secondary-selection-extent
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219 (select-make-extent-for-selection
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220 data secondary-selection-extent)))))
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221 ;; zmacs-region-stays is for commands, not low-level functions.
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222 ;; when behaving as the latter, we better not set it, or we will
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223 ;; cause unwanted sticky-region behavior in kill-region and friends.
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224 (if (interactive-p)
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225 (setq zmacs-region-stays t))
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226 data)
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227
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228 (defun dehilight-selection (selection)
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229 "for use as a value of `lost-selection-hooks'."
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230 (cond ((eq selection 'PRIMARY)
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231 (if primary-selection-extent
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232 (let ((inhibit-quit t))
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233 (if (consp primary-selection-extent)
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234 (mapcar 'delete-extent primary-selection-extent)
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235 (delete-extent primary-selection-extent))
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236 (setq primary-selection-extent nil)))
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237 (if zmacs-regions (zmacs-deactivate-region)))
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238 ((eq selection 'SECONDARY)
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239 (if secondary-selection-extent
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240 (let ((inhibit-quit t))
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241 (if (consp secondary-selection-extent)
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242 (mapcar 'delete-extent secondary-selection-extent)
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243 (delete-extent secondary-selection-extent))
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244 (setq secondary-selection-extent nil)))))
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245 nil)
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246
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247 (setq lost-selection-hooks 'dehilight-selection)
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248
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442
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249 (defun own-clipboard (string &optional push)
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250 "Paste the given string to the window system Clipboard.
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251 See `interprogram-cut-function' for more information."
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252 (own-selection string 'CLIPBOARD))
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253
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254 (defun disown-selection (&optional secondary-p)
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487
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255 "Assuming we own the selection, disown it.
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256 With an argument, discard the secondary selection instead of the
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257 primary selection."
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428
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258 (disown-selection-internal (if secondary-p 'SECONDARY 'PRIMARY))
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259 (when (and selection-sets-clipboard
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260 (or (not secondary-p)
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261 (eq secondary-p 'PRIMARY)
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262 (eq secondary-p 'CLIPBOARD)))
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263 (disown-selection-internal 'CLIPBOARD)))
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264
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265 ;; selections and active regions
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266
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267 ;; If and only if zmacs-regions is true:
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268
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269 ;; When a mark is pushed and the region goes into the "active" state, we
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270 ;; assert it as the Primary selection. This causes it to be hilighted.
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271 ;; When the region goes into the "inactive" state, we disown the Primary
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272 ;; selection, causing the region to be dehilighted.
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273
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274 ;; Note that it is possible for the region to be in the "active" state
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275 ;; and not be hilighted, if it is in the active state and then some other
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276 ;; application asserts the selection. This is probably not a big deal.
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277
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278 (defun activate-region-as-selection ()
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487
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279 (cond (mouse-track-rectangle-p (mouse-track-activate-rectangular-selection))
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280 ((marker-buffer (mark-marker t))
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281 (own-selection (cons (point-marker t) (mark-marker t))))))
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428
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282
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283 (defvar primary-selection-extent nil
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284 "The extent of the primary selection; don't use this.")
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285
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286 (defvar secondary-selection-extent nil
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287 "The extent of the secondary selection; don't use this.")
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288
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289 (defun select-make-extent-for-selection (selection previous-extent)
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290 ;; Given a selection, this makes an extent in the buffer which holds that
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291 ;; selection, for highlighting purposes. If the selection isn't associated
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292 ;; with a buffer, this does nothing.
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293 ;;
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294 ;; Something similar needs to be hooked into the rectangle functions.
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295 (let ((buffer nil)
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296 (valid (and (extentp previous-extent)
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297 (extent-object previous-extent)
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298 (buffer-live-p (extent-object previous-extent))))
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299 start end)
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300 (cond ((stringp selection)
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301 ;; if we're selecting a string, lose the previous extent used
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302 ;; to highlight the selection.
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303 (setq valid nil))
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304 ((consp selection)
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305 (setq start (min (car selection) (cdr selection))
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306 end (max (car selection) (cdr selection))
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307 valid (and valid
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308 (eq (marker-buffer (car selection))
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309 (extent-object previous-extent)))
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310 buffer (marker-buffer (car selection))))
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311 ((extentp selection)
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312 (setq start (extent-start-position selection)
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313 end (extent-end-position selection)
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314 valid (and valid
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315 (eq (extent-object selection)
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316 (extent-object previous-extent)))
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317 buffer (extent-object selection)))
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318 (t
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319 (signal 'error (list "invalid selection" selection))))
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320
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321 (if valid
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322 nil
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323 (condition-case ()
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324 (if (listp previous-extent)
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325 (mapcar 'delete-extent previous-extent)
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326 (delete-extent previous-extent))
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327 (error nil)))
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328
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329 (if (not buffer)
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330 ;; string case
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331 nil
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332 ;; normal case
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333 (if valid
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334 (set-extent-endpoints previous-extent start end)
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335 (setq previous-extent (make-extent start end buffer))
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336
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337 ;; Make the extent be closed on the right, which means that if
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338 ;; characters are inserted exactly at the end of the extent, the
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339 ;; extent will grow to cover them. This is important for shell
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340 ;; buffers - suppose one makes a selection, and one end is at
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341 ;; point-max. If the shell produces output, that marker will remain
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342 ;; at point-max (its position will increase). So it's important that
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343 ;; the extent exhibit the same behavior, lest the region covered by
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344 ;; the extent (the visual indication), and the region between point
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345 ;; and mark (the actual selection value) become different!
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346 (set-extent-property previous-extent 'end-open nil)
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347
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348 (cond
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349 (mouse-track-rectangle-p
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350 (setq previous-extent (list previous-extent))
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351 (default-mouse-track-next-move-rect start end previous-extent)
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352 ))
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353 previous-extent))))
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354
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355 (defun valid-simple-selection-p (data)
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442
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356 "An obsolete function that tests whether something was a valid simple
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357 selection using the old XEmacs selection support. You shouldn't use this
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358 any more, because just about anything could be a valid selection now."
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428
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359 (or (stringp data)
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360 ;FSFmacs huh?? (symbolp data)
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361 (integerp data)
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362 (and (consp data)
|
|
|
363 (integerp (car data))
|
|
|
364 (or (integerp (cdr data))
|
|
|
365 (and (consp (cdr data))
|
|
|
366 (integerp (car (cdr data))))))
|
|
|
367 (extentp data)
|
|
|
368 (and (consp data)
|
|
|
369 (markerp (car data))
|
|
|
370 (markerp (cdr data))
|
|
|
371 (marker-buffer (car data))
|
|
|
372 (marker-buffer (cdr data))
|
|
|
373 (eq (marker-buffer (car data))
|
|
|
374 (marker-buffer (cdr data)))
|
|
|
375 (buffer-live-p (marker-buffer (car data)))
|
|
|
376 (buffer-live-p (marker-buffer (cdr data))))))
|
|
|
377
|
|
|
378 (defun cut-copy-clear-internal (mode)
|
|
|
379 (or (memq mode '(cut copy clear)) (error "unkown mode %S" mode))
|
|
|
380 (or (selection-owner-p)
|
|
|
381 (error "XEmacs does not own the primary selection"))
|
|
|
382 (setq last-command nil)
|
|
|
383 (or primary-selection-extent
|
|
|
384 (error "the primary selection is not an extent?"))
|
|
|
385 (save-excursion
|
|
|
386 (let (rect-p b s e)
|
|
|
387 (cond
|
|
|
388 ((consp primary-selection-extent)
|
|
|
389 (setq rect-p t
|
|
|
390 b (extent-object (car primary-selection-extent))
|
|
|
391 s (extent-start-position (car primary-selection-extent))
|
|
|
392 e (extent-end-position (car (reverse primary-selection-extent)))))
|
|
|
393 (t
|
|
|
394 (setq rect-p nil
|
|
|
395 b (extent-object primary-selection-extent)
|
|
|
396 s (extent-start-position primary-selection-extent)
|
|
|
397 e (extent-end-position primary-selection-extent))))
|
|
|
398 (set-buffer b)
|
|
|
399 (cond ((memq mode '(cut copy))
|
|
|
400 (if rect-p
|
|
|
401 (progn
|
|
851
|
402 ;; killed-rectangle is defvarred in rect.el
|
|
428
|
403 (setq killed-rectangle (extract-rectangle s e))
|
|
|
404 (kill-new (mapconcat #'identity killed-rectangle "\n")))
|
|
|
405 (copy-region-as-kill s e))
|
|
|
406 ;; Maybe killing doesn't own clipboard. Make sure it happens.
|
|
|
407 ;; This memq is kind of grody, because they might have done it
|
|
|
408 ;; some other way, but owning the clipboard twice in that case
|
|
|
409 ;; wouldn't actually hurt anything.
|
|
|
410 (or (and (consp kill-hooks) (memq 'own-clipboard kill-hooks))
|
|
851
|
411 (eq 'own-clipboard interprogram-cut-function)
|
|
428
|
412 (own-clipboard (car kill-ring)))))
|
|
|
413 (cond ((memq mode '(cut clear))
|
|
|
414 (if rect-p
|
|
|
415 (delete-rectangle s e)
|
|
|
416 (delete-region s e))))
|
|
|
417 (disown-selection nil)
|
|
|
418 )))
|
|
|
419
|
|
442
|
420
|
|
428
|
421 ;;; Functions to convert the selection into various other selection
|
|
442
|
422 ;;; types.
|
|
|
423
|
|
|
424 ;; These next three functions get called by C code...
|
|
|
425 (defun select-convert-in (selection type value)
|
|
|
426 "Attempt to convert the specified external VALUE to the specified DATA-TYPE,
|
|
|
427 for the specified SELECTION. Return nil if this is impossible, or a
|
|
|
428 suitable internal representation otherwise."
|
|
|
429 (when value
|
|
|
430 (let ((handler-fn (cdr (assq type selection-converter-in-alist))))
|
|
2624
|
431 (if handler-fn
|
|
|
432 (apply handler-fn (list selection type value))
|
|
|
433 value))))
|
|
428
|
434
|
|
442
|
435 (defun select-convert-out (selection type value)
|
|
|
436 "Attempt to convert the specified internal VALUE for the specified DATA-TYPE
|
|
|
437 and SELECTION. Return nil if this is impossible, or a suitable external
|
|
|
438 representation otherwise."
|
|
|
439 (when value
|
|
|
440 (let ((handler-fn (cdr (assq type selection-converter-out-alist))))
|
|
|
441 (when handler-fn
|
|
|
442 (apply handler-fn (list selection type value))))))
|
|
|
443
|
|
|
444 (defun select-coerce (selection type value)
|
|
|
445 "Attempt to convert the specified internal VALUE to a representation
|
|
|
446 suitable for return from `get-selection' in the specified DATA-TYPE. Return
|
|
|
447 nil if this is impossible, or a suitable representation otherwise."
|
|
|
448 (when value
|
|
|
449 (let ((handler-fn (cdr (assq type selection-coercion-alist))))
|
|
|
450 (when handler-fn
|
|
|
451 (apply handler-fn (list selection type value))))))
|
|
|
452
|
|
|
453 ;; The rest of the functions on this "page" are conversion handlers,
|
|
|
454 ;; append handlers and buffer-kill handlers.
|
|
428
|
455 (defun select-convert-to-text (selection type value)
|
|
|
456 (cond ((stringp value)
|
|
|
457 value)
|
|
|
458 ((extentp value)
|
|
|
459 (save-excursion
|
|
|
460 (set-buffer (extent-object value))
|
|
|
461 (save-restriction
|
|
|
462 (widen)
|
|
|
463 (buffer-substring (extent-start-position value)
|
|
|
464 (extent-end-position value)))))
|
|
|
465 ((and (consp value)
|
|
|
466 (markerp (car value))
|
|
|
467 (markerp (cdr value)))
|
|
|
468 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
|
|
|
469 (signal 'error
|
|
|
470 (list "markers must be in the same buffer"
|
|
|
471 (car value) (cdr value))))
|
|
|
472 (save-excursion
|
|
|
473 (set-buffer (or (marker-buffer (car value))
|
|
|
474 (error "selection is in a killed buffer")))
|
|
|
475 (save-restriction
|
|
|
476 (widen)
|
|
|
477 (buffer-substring (car value) (cdr value)))))
|
|
|
478 (t nil)))
|
|
|
479
|
|
2624
|
480 (defun select-convert-to-timestamp (selection type value)
|
|
|
481 (let ((ts (get-xemacs-selection-timestamp selection)))
|
|
|
482 (if ts (cons 'TIMESTAMP ts))))
|
|
|
483
|
|
|
484 (defun select-convert-to-utf-8-text (selection type value)
|
|
|
485 (cond ((stringp value)
|
|
|
486 (cons 'UTF8_STRING (encode-coding-string value 'utf-8)))
|
|
|
487 ((extentp value)
|
|
|
488 (save-excursion
|
|
|
489 (set-buffer (extent-object value))
|
|
|
490 (save-restriction
|
|
|
491 (widen)
|
|
|
492 (cons 'UTF8_STRING
|
|
|
493 (encode-coding-string
|
|
|
494 (buffer-substring (extent-start-position value)
|
|
|
495 (extent-end-position value)) 'utf-8)))))
|
|
|
496 ((and (consp value)
|
|
|
497 (markerp (car value))
|
|
|
498 (markerp (cdr value)))
|
|
|
499 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
|
|
|
500 (signal 'error
|
|
|
501 (list "markers must be in the same buffer"
|
|
|
502 (car value) (cdr value))))
|
|
|
503 (save-excursion
|
|
|
504 (set-buffer (or (marker-buffer (car value))
|
|
|
505 (error "selection is in a killed buffer")))
|
|
|
506 (save-restriction
|
|
|
507 (widen)
|
|
|
508 (cons 'UTF8_STRING (encode-coding-string
|
|
|
509 (buffer-substring (car value) (cdr value))
|
|
|
510 'utf-8)))))
|
|
|
511 (t nil)))
|
|
|
512
|
|
442
|
513 (defun select-coerce-to-text (selection type value)
|
|
|
514 (select-convert-to-text selection type value))
|
|
|
515
|
|
428
|
516 (defun select-convert-to-string (selection type value)
|
|
|
517 (let ((outval (select-convert-to-text selection type value)))
|
|
442
|
518 ;; force the string to be not in Compound Text format. This grubby
|
|
|
519 ;; hack will go soon, to be replaced by a more general mechanism.
|
|
428
|
520 (if (stringp outval)
|
|
|
521 (cons 'STRING outval)
|
|
|
522 outval)))
|
|
|
523
|
|
|
524 (defun select-convert-to-compound-text (selection type value)
|
|
|
525 ;; converts to compound text automatically
|
|
|
526 (select-convert-to-text selection type value))
|
|
|
527
|
|
|
528 (defun select-convert-to-length (selection type value)
|
|
|
529 (let ((value
|
|
|
530 (cond ((stringp value)
|
|
|
531 (length value))
|
|
|
532 ((extentp value)
|
|
|
533 (extent-length value))
|
|
|
534 ((and (consp value)
|
|
|
535 (markerp (car value))
|
|
|
536 (markerp (cdr value)))
|
|
|
537 (or (eq (marker-buffer (car value))
|
|
|
538 (marker-buffer (cdr value)))
|
|
|
539 (signal 'error
|
|
|
540 (list "markers must be in the same buffer"
|
|
|
541 (car value) (cdr value))))
|
|
|
542 (abs (- (car value) (cdr value)))))))
|
|
|
543 (if value ; force it to be in 32-bit format.
|
|
|
544 (cons (ash value -16) (logand value 65535))
|
|
|
545 nil)))
|
|
|
546
|
|
|
547 (defun select-convert-to-targets (selection type value)
|
|
|
548 ;; return a vector of atoms, but remove duplicates first.
|
|
|
549 (let* ((all (cons 'TIMESTAMP (mapcar 'car selection-converter-alist)))
|
|
|
550 (rest all))
|
|
|
551 (while rest
|
|
|
552 (cond ((memq (car rest) (cdr rest))
|
|
|
553 (setcdr rest (delq (car rest) (cdr rest))))
|
|
|
554 (t
|
|
|
555 (setq rest (cdr rest)))))
|
|
|
556 (apply 'vector all)))
|
|
|
557
|
|
|
558 (defun select-convert-to-delete (selection type value)
|
|
|
559 (disown-selection-internal selection)
|
|
|
560 ;; A return value of nil means that we do not know how to do this conversion,
|
|
|
561 ;; and replies with an "error". A return value of NULL means that we have
|
|
|
562 ;; done the conversion (and any side-effects) but have no value to return.
|
|
|
563 'NULL)
|
|
|
564
|
|
|
565 (defun select-convert-to-filename (selection type value)
|
|
|
566 (cond ((extentp value)
|
|
|
567 (buffer-file-name (or (extent-object value)
|
|
|
568 (error "selection is in a killed buffer"))))
|
|
|
569 ((and (consp value)
|
|
|
570 (markerp (car value))
|
|
|
571 (markerp (cdr value)))
|
|
|
572 (buffer-file-name (or (marker-buffer (car value))
|
|
|
573 (error "selection is in a killed buffer"))))
|
|
|
574 (t nil)))
|
|
|
575
|
|
|
576 (defun select-convert-to-charpos (selection type value)
|
|
|
577 (let (a b tmp)
|
|
|
578 (cond ((cond ((extentp value)
|
|
|
579 (setq a (extent-start-position value)
|
|
|
580 b (extent-end-position value)))
|
|
|
581 ((and (consp value)
|
|
|
582 (markerp (car value))
|
|
|
583 (markerp (cdr value)))
|
|
|
584 (setq a (car value)
|
|
|
585 b (cdr value))))
|
|
|
586 (setq a (1- a) b (1- b)) ; zero-based
|
|
|
587 (if (< b a) (setq tmp a a b b tmp))
|
|
|
588 (cons 'SPAN
|
|
|
589 (vector (cons (ash a -16) (logand a 65535))
|
|
|
590 (cons (ash b -16) (logand b 65535))))))))
|
|
|
591
|
|
|
592 (defun select-convert-to-lineno (selection type value)
|
|
|
593 (let (a b buf tmp)
|
|
|
594 (cond ((cond ((extentp value)
|
|
|
595 (setq buf (extent-object value)
|
|
|
596 a (extent-start-position value)
|
|
|
597 b (extent-end-position value)))
|
|
|
598 ((and (consp value)
|
|
|
599 (markerp (car value))
|
|
|
600 (markerp (cdr value)))
|
|
|
601 (setq a (marker-position (car value))
|
|
|
602 b (marker-position (cdr value))
|
|
|
603 buf (marker-buffer (car value)))))
|
|
|
604 (save-excursion
|
|
|
605 (set-buffer buf)
|
|
|
606 (save-restriction
|
|
|
607 (widen)
|
|
|
608 (goto-char a)
|
|
|
609 (beginning-of-line)
|
|
|
610 (setq a (1+ (count-lines 1 (point))))
|
|
|
611 (goto-char b)
|
|
|
612 (beginning-of-line)
|
|
|
613 (setq b (1+ (count-lines 1 (point))))))
|
|
|
614 (if (< b a) (setq tmp a a b b tmp))
|
|
|
615 (cons 'SPAN
|
|
|
616 (vector (cons (ash a -16) (logand a 65535))
|
|
|
617 (cons (ash b -16) (logand b 65535))))))))
|
|
|
618
|
|
|
619 (defun select-convert-to-colno (selection type value)
|
|
|
620 (let (a b buf tmp)
|
|
|
621 (cond ((cond ((extentp value)
|
|
|
622 (setq buf (extent-object value)
|
|
|
623 a (extent-start-position value)
|
|
|
624 b (extent-end-position value)))
|
|
|
625 ((and (consp value)
|
|
|
626 (markerp (car value))
|
|
|
627 (markerp (cdr value)))
|
|
|
628 (setq a (car value)
|
|
|
629 b (cdr value)
|
|
|
630 buf (marker-buffer a))))
|
|
|
631 (save-excursion
|
|
|
632 (set-buffer buf)
|
|
|
633 (goto-char a)
|
|
|
634 (setq a (current-column))
|
|
|
635 (goto-char b)
|
|
|
636 (setq b (current-column)))
|
|
|
637 (if (< b a) (setq tmp a a b b tmp))
|
|
|
638 (cons 'SPAN
|
|
|
639 (vector (cons (ash a -16) (logand a 65535))
|
|
|
640 (cons (ash b -16) (logand b 65535))))))))
|
|
|
641
|
|
|
642 (defun select-convert-to-sourceloc (selection type value)
|
|
|
643 (let (a b buf file-name tmp)
|
|
|
644 (cond ((cond ((extentp value)
|
|
|
645 (setq buf (or (extent-object value)
|
|
|
646 (error "selection is in a killed buffer"))
|
|
|
647 a (extent-start-position value)
|
|
|
648 b (extent-end-position value)
|
|
|
649 file-name (buffer-file-name buf)))
|
|
|
650 ((and (consp value)
|
|
|
651 (markerp (car value))
|
|
|
652 (markerp (cdr value)))
|
|
|
653 (setq a (marker-position (car value))
|
|
|
654 b (marker-position (cdr value))
|
|
|
655 buf (or (marker-buffer (car value))
|
|
|
656 (error "selection is in a killed buffer"))
|
|
|
657 file-name (buffer-file-name buf))))
|
|
|
658 (save-excursion
|
|
|
659 (set-buffer buf)
|
|
|
660 (save-restriction
|
|
|
661 (widen)
|
|
|
662 (goto-char a)
|
|
|
663 (beginning-of-line)
|
|
|
664 (setq a (1+ (count-lines 1 (point))))
|
|
|
665 (goto-char b)
|
|
|
666 (beginning-of-line)
|
|
|
667 (setq b (1+ (count-lines 1 (point))))))
|
|
|
668 (if (< b a) (setq tmp a a b b tmp))
|
|
|
669 (format "%s:%d" file-name a)))))
|
|
|
670
|
|
|
671 (defun select-convert-to-os (selection type size)
|
|
|
672 (symbol-name system-type))
|
|
|
673
|
|
|
674 (defun select-convert-to-host (selection type size)
|
|
|
675 (system-name))
|
|
|
676
|
|
|
677 (defun select-convert-to-user (selection type size)
|
|
|
678 (user-full-name))
|
|
|
679
|
|
|
680 (defun select-convert-to-class (selection type size)
|
|
442
|
681 (symbol-value 'x-emacs-application-class))
|
|
428
|
682
|
|
|
683 ;; We do not try to determine the name Emacs was invoked with,
|
|
|
684 ;; because it is not clean for a program's behavior to depend on that.
|
|
|
685 (defun select-convert-to-name (selection type size)
|
|
|
686 ;invocation-name
|
|
|
687 "xemacs")
|
|
|
688
|
|
|
689 (defun select-convert-to-integer (selection type value)
|
|
|
690 (and (integerp value)
|
|
|
691 (cons (ash value -16) (logand value 65535))))
|
|
|
692
|
|
442
|
693 ;; Can convert from the following integer representations
|
|
|
694 ;;
|
|
|
695 ;; integer
|
|
|
696 ;; (integer . integer)
|
|
|
697 ;; (integer integer)
|
|
|
698 ;; (list [integer|(integer . integer)]*)
|
|
|
699 ;; (vector [integer|(integer . integer)]*)
|
|
|
700 ;;
|
|
|
701 ;; Cons'd integers get cleaned up a little.
|
|
|
702
|
|
|
703 (defun select-convert-from-integer (selection type value)
|
|
|
704 (cond ((integerp value) ; Integer
|
|
|
705 value)
|
|
444
|
706
|
|
442
|
707 ((and (consp value) ; (integer . integer)
|
|
|
708 (integerp (car value))
|
|
|
709 (integerp (cdr value)))
|
|
|
710 (if (eq (car value) 0)
|
|
|
711 (cdr value)
|
|
|
712 (if (and (eq (car value) -1)
|
|
|
713 (< (cdr value) 0))
|
|
|
714 (cdr value)
|
|
|
715 value)))
|
|
444
|
716
|
|
442
|
717 ((and (listp value) ; (integer integer)
|
|
|
718 (eq (length value) 2)
|
|
|
719 (integerp (car value))
|
|
|
720 (integerp (cadr value)))
|
|
|
721 (if (eq (car value) 0)
|
|
|
722 (cadr value)
|
|
|
723 (if (and (eq (car value) -1)
|
|
|
724 (< (cdr value) 0))
|
|
|
725 (- (cadr value))
|
|
|
726 (cons (car value) (cadr value)))))
|
|
444
|
727
|
|
442
|
728 ((listp value) ; list
|
|
|
729 (if (cdr value)
|
|
4021
|
730 (mapcar #'(lambda (x)
|
|
|
731 (select-convert-from-integer selection type x))
|
|
442
|
732 value)
|
|
|
733 (select-convert-from-integer selection type (car value))))
|
|
444
|
734
|
|
442
|
735 ((vectorp value) ; vector
|
|
|
736 (if (eq (length value) 1)
|
|
|
737 (select-convert-from-integer selection type (aref value 0))
|
|
4021
|
738 (mapvector #'(lambda (x)
|
|
|
739 (select-convert-from-integer selection type x))
|
|
|
740 value)))
|
|
444
|
741
|
|
442
|
742 (t nil)
|
|
|
743 ))
|
|
|
744
|
|
2624
|
745 (defun select-convert-from-ip-address (selection type value)
|
|
|
746 (if (and (stringp value)
|
|
|
747 (= (length value) 4))
|
|
|
748 (format "%d.%d.%d.%d"
|
|
|
749 (aref value 0) (aref value 1) (aref value 2) (aref value 3))))
|
|
|
750
|
|
428
|
751 (defun select-convert-to-atom (selection type value)
|
|
|
752 (and (symbolp value) value))
|
|
|
753
|
|
2624
|
754 (defun select-convert-from-utf-8-text (selection type value)
|
|
|
755 (decode-coding-string value 'utf-8))
|
|
|
756
|
|
|
757 (defun select-convert-from-utf-16-le-text (selection type value)
|
|
|
758 (decode-coding-string value 'utf-16-le))
|
|
|
759
|
|
|
760 ;; Image conversion.
|
|
|
761 (defun select-convert-from-image-data (image-type value)
|
|
|
762 "Take an image type specification--one of the image types this XEmacs
|
|
|
763 supports--and some data in that format, return a space, with a glyph
|
|
|
764 corresponding to that data as an end-glyph extent property of that space. "
|
|
|
765 (let* ((str (make-string 1 ?\ ))
|
|
|
766 (extent (make-extent 0 1 str))
|
|
|
767 (glyph (make-glyph (vector image-type ':data value))))
|
|
|
768 (when glyph
|
|
|
769 (set-extent-property extent 'invisible t)
|
|
|
770 (set-extent-property extent 'start-open t)
|
|
|
771 (set-extent-property extent 'end-open t)
|
|
|
772 (set-extent-property extent 'duplicable t)
|
|
|
773 (set-extent-property extent 'atomic t)
|
|
|
774 (set-extent-end-glyph extent glyph)
|
|
|
775 str)))
|
|
|
776
|
|
|
777 ;; Could automate defining these functions these with a macro, but damned if
|
|
|
778 ;; I can get that to work. Anyway, this is more readable.
|
|
|
779
|
|
|
780 (defun select-convert-from-image/gif (selection type value)
|
|
|
781 (if (featurep 'gif) (select-convert-from-image-data 'gif value)))
|
|
|
782
|
|
|
783 (defun select-convert-from-image/jpeg (selection type value)
|
|
|
784 (if (featurep 'jpeg) (select-convert-from-image-data 'jpeg value)))
|
|
|
785
|
|
|
786 (defun select-convert-from-image/png (selection type value)
|
|
|
787 (if (featurep 'png) (select-convert-from-image-data 'png value)))
|
|
|
788
|
|
|
789 (defun select-convert-from-image/tiff (selection type value)
|
|
|
790 (if (featurep 'tiff) (select-convert-from-image-data 'tiff value)))
|
|
|
791
|
|
|
792 (defun select-convert-from-image/xpm (selection type value)
|
|
|
793 (if (featurep 'xpm) (select-convert-from-image-data 'xpm value)))
|
|
|
794
|
|
|
795 (defun select-convert-from-image/xbm (selection type value)
|
|
|
796 (if (featurep 'xbm) (select-convert-from-image-data 'xbm value)))
|
|
|
797
|
|
442
|
798 ;;; CF_xxx conversions
|
|
|
799 (defun select-convert-from-cf-text (selection type value)
|
|
2624
|
800 (if (find-coding-system 'mswindows-multibyte)
|
|
|
801 (let ((value (decode-coding-string value 'mswindows-multibyte)))
|
|
|
802 (replace-in-string (if (string-match "\0" value)
|
|
|
803 (substring value 0 (match-beginning 0))
|
|
|
804 value)
|
|
|
805 "\\(\r\n\\|\n\r\\)" "\n" t))))
|
|
771
|
806
|
|
|
807 (defun select-convert-from-cf-unicodetext (selection type value)
|
|
2624
|
808 (if (find-coding-system 'mswindows-unicode)
|
|
|
809 (let ((value (decode-coding-string value 'mswindows-unicode)))
|
|
|
810 (replace-in-string (if (string-match "\0" value)
|
|
|
811 (substring value 0 (match-beginning 0))
|
|
|
812 value)
|
|
|
813 "\\(\r\n\\|\n\r\\)" "\n" t))))
|
|
442
|
814
|
|
|
815 (defun select-convert-to-cf-text (selection type value)
|
|
2624
|
816 (if (find-coding-system 'mswindows-multibyte)
|
|
|
817 (let ((text (select-convert-to-text selection type value)))
|
|
|
818 (encode-coding-string
|
|
|
819 (concat (replace-in-string text "\n" "\r\n" t) "\0")
|
|
|
820 'mswindows-multibyte))))
|
|
771
|
821
|
|
|
822 (defun select-convert-to-cf-unicodetext (selection type value)
|
|
2624
|
823 (if (find-coding-system 'mswindows-unicode)
|
|
|
824 (let ((text (select-convert-to-text selection type value)))
|
|
|
825 (encode-coding-string
|
|
|
826 (concat (replace-in-string text "\n" "\r\n" t) "\0")
|
|
|
827 'mswindows-unicode))))
|
|
442
|
828
|
|
|
829 ;;; Appenders
|
|
|
830 (defun select-append-to-text (selection type value1 value2)
|
|
|
831 (let ((text1 (select-convert-to-text selection 'STRING value1))
|
|
|
832 (text2 (select-convert-to-text selection 'STRING value2)))
|
|
|
833 (if (and text1 text2)
|
|
|
834 (concat text1 text2)
|
|
|
835 nil)))
|
|
|
836
|
|
|
837 (defun select-append-to-string (selection type value1 value2)
|
|
|
838 (select-append-to-text selection type value1 value2))
|
|
|
839
|
|
|
840 (defun select-append-to-compound-text (selection type value1 value2)
|
|
|
841 (select-append-to-text selection type value1 value2))
|
|
|
842
|
|
|
843 (defun select-append-to-cf-text (selection type value1 value2)
|
|
|
844 (let ((text1 (select-convert-from-cf-text selection 'CF_TEXT value1))
|
|
|
845 (text2 (select-convert-from-cf-text selection 'CF_TEXT value2)))
|
|
|
846 (if (and text1 text2)
|
|
|
847 (select-convert-to-cf-text selection type (concat text1 text2))
|
|
|
848 nil)))
|
|
428
|
849
|
|
771
|
850 (defun select-append-to-cf-unicodetext (selection type value1 value2)
|
|
|
851 (let ((text1 (select-convert-from-cf-unicodetext selection
|
|
|
852 'CF_UNICODETEXT value1))
|
|
|
853 (text2 (select-convert-from-cf-unicodetext selection
|
|
|
854 'CF_UNICODETEXT value2)))
|
|
|
855 (if (and text1 text2)
|
|
|
856 (select-convert-to-cf-unicodetext selection type (concat text1 text2))
|
|
|
857 nil)))
|
|
|
858
|
|
442
|
859 (defun select-append-default (selection type value1 value2)
|
|
|
860 ;; This appender gets used if the type is "nil" - i.e. default.
|
|
|
861 ;; It should probably have more cases implemented than it does - e.g.
|
|
|
862 ;; appending numbers to strings, etc...
|
|
|
863 (cond ((and (stringp value1) (stringp value2))
|
|
|
864 (select-append-to-string selection 'STRING value1 value2))
|
|
|
865 (t nil)))
|
|
|
866
|
|
|
867 ;;; Buffer kill handlers
|
|
|
868
|
|
|
869 (defun select-buffer-killed-default (selection type value buffer)
|
|
|
870 ;; This handler gets used if the type is "nil".
|
|
|
871 (cond ((extentp value)
|
|
|
872 (if (eq (extent-object value) buffer)
|
|
|
873 ; If this selection is on the clipboard, grab it quick
|
|
|
874 (when (eq selection 'CLIPBOARD)
|
|
|
875 (save-excursion
|
|
|
876 (set-buffer (extent-object value))
|
|
|
877 (save-restriction
|
|
|
878 (widen)
|
|
|
879 (buffer-substring (extent-start-position value)
|
|
|
880 (extent-end-position value)))))
|
|
|
881 value))
|
|
|
882 ((markerp value)
|
|
|
883 (unless (eq (marker-buffer value) buffer)
|
|
|
884 value))
|
|
|
885 ((and (consp value)
|
|
|
886 (markerp (car value))
|
|
|
887 (markerp (cdr value)))
|
|
|
888 (if (or (eq (marker-buffer (car value)) buffer)
|
|
|
889 (eq (marker-buffer (cdr value)) buffer))
|
|
|
890 ; If this selection is on the clipboard, grab it quick
|
|
|
891 (when (eq selection 'CLIPBOARD)
|
|
|
892 (save-excursion
|
|
|
893 (set-buffer (marker-buffer (car value)))
|
|
|
894 (save-restriction
|
|
|
895 (widen)
|
|
|
896 (buffer-substring (car value) (cdr value)))))
|
|
|
897 value))
|
|
|
898 (t value)))
|
|
|
899
|
|
|
900 (defun select-buffer-killed-text (selection type value buffer)
|
|
|
901 (select-buffer-killed-default selection type value buffer))
|
|
444
|
902
|
|
442
|
903 ;; Types listed in here can be selections of XEmacs
|
|
|
904 (setq selection-converter-out-alist
|
|
2624
|
905 '((TIMESTAMP . select-convert-to-timestamp)
|
|
|
906 (UTF8_STRING . select-convert-to-utf-8-text)
|
|
|
907 (TEXT . select-convert-to-text)
|
|
428
|
908 (STRING . select-convert-to-string)
|
|
|
909 (COMPOUND_TEXT . select-convert-to-compound-text)
|
|
|
910 (TARGETS . select-convert-to-targets)
|
|
|
911 (LENGTH . select-convert-to-length)
|
|
|
912 (DELETE . select-convert-to-delete)
|
|
|
913 (FILE_NAME . select-convert-to-filename)
|
|
|
914 (CHARACTER_POSITION . select-convert-to-charpos)
|
|
|
915 (SOURCE_LOC . select-convert-to-sourceloc)
|
|
|
916 (LINE_NUMBER . select-convert-to-lineno)
|
|
|
917 (COLUMN_NUMBER . select-convert-to-colno)
|
|
|
918 (OWNER_OS . select-convert-to-os)
|
|
|
919 (HOST_NAME . select-convert-to-host)
|
|
|
920 (USER . select-convert-to-user)
|
|
|
921 (CLASS . select-convert-to-class)
|
|
|
922 (NAME . select-convert-to-name)
|
|
|
923 (ATOM . select-convert-to-atom)
|
|
|
924 (INTEGER . select-convert-to-integer)
|
|
442
|
925 (CF_TEXT . select-convert-to-cf-text)
|
|
771
|
926 (CF_UNICODETEXT . select-convert-to-cf-unicodetext)
|
|
442
|
927 ))
|
|
|
928
|
|
|
929 ;; Types listed here can be selections foreign to XEmacs
|
|
|
930 (setq selection-converter-in-alist
|
|
|
931 '(; Specific types that get handled by generic converters
|
|
|
932 (INTEGER . select-convert-from-integer)
|
|
2624
|
933 (TIMESTAMP . select-convert-from-integer)
|
|
|
934 (LENGTH . select-convert-from-integer)
|
|
|
935 (LIST_LENGTH . select-convert-from-integer)
|
|
|
936 (CLIENT_WINDOW . select-convert-from-integer)
|
|
|
937 (PROCESS . select-convert-from-integer)
|
|
|
938 (IP_ADDRESS . select-convert-from-ip-address)
|
|
|
939 ;; We go after UTF8_STRING in preference to STRING because Mozilla,
|
|
|
940 ;; at least, does bad things with non-Latin-1 Unicode characters in
|
|
|
941 ;; STRING.
|
|
|
942 (UTF8_STRING . select-convert-from-utf-8-text)
|
|
442
|
943 (CF_TEXT . select-convert-from-cf-text)
|
|
771
|
944 (CF_UNICODETEXT . select-convert-from-cf-unicodetext)
|
|
2624
|
945 (text/html . select-convert-from-utf-16-le-text) ; Mozilla
|
|
|
946 (text/_moz_htmlcontext . select-convert-from-utf-16-le-text)
|
|
|
947 (text/_moz_htmlinfo . select-convert-from-utf-16-le-text)
|
|
|
948 (image/png . select-convert-from-image/png)
|
|
|
949 (image/gif . select-convert-from-image/gif)
|
|
|
950 (image/jpeg . select-convert-from-image/jpeg )
|
|
|
951 (image/tiff . select-convert-from-image/tiff )
|
|
|
952 (image/xpm . select-convert-from-image/xpm)
|
|
|
953 (image/xbm . select-convert-from-image/xbm)
|
|
428
|
954 ))
|
|
|
955
|
|
442
|
956 ;; Types listed here have special coercion functions that can munge
|
|
|
957 ;; other types. This can also be used to add special features - e.g.
|
|
|
958 ;; being able to pass a region or a cons of markers to own-selection,
|
|
|
959 ;; but getting the *current* text in the region back when calling
|
|
|
960 ;; get-selection.
|
|
|
961 ;;
|
|
|
962 ;; Any function listed in here *will be called* whenever a value of
|
|
|
963 ;; its type is retrieved from the internal selection cache, or when
|
|
|
964 ;; no suitable values could be found in which case XEmacs looks for
|
|
|
965 ;; values with types listed in selection-coercible-types.
|
|
|
966 (setq selection-coercion-alist
|
|
|
967 '((TEXT . select-coerce-to-text)
|
|
|
968 (STRING . select-coerce-to-text)
|
|
|
969 (COMPOUND_TEXT . select-coerce-to-text)
|
|
771
|
970 (CF_TEXT . select-coerce-to-text)
|
|
|
971 (CF_UNICODETEXT . select-coerce-to-text)
|
|
|
972 ))
|
|
442
|
973
|
|
|
974 ;; Types listed here can be appended by own-selection
|
|
|
975 (setq selection-appender-alist
|
|
|
976 '((nil . select-append-default)
|
|
|
977 (TEXT . select-append-to-text)
|
|
|
978 (STRING . select-append-to-string)
|
|
|
979 (COMPOUND_TEXT . select-append-to-compound-text)
|
|
|
980 (CF_TEXT . select-append-to-cf-text)
|
|
771
|
981 (CF_UNICODETEXT . select-append-to-cf-unicodetext)
|
|
442
|
982 ))
|
|
|
983
|
|
|
984 ;; Types listed here have buffer-kill handlers
|
|
|
985 (setq selection-buffer-killed-alist
|
|
|
986 '((nil . select-buffer-killed-default)
|
|
|
987 (TEXT . select-buffer-killed-text)
|
|
|
988 (STRING . select-buffer-killed-text)
|
|
|
989 (COMPOUND_TEXT . select-buffer-killed-text)
|
|
771
|
990 (CF_TEXT . select-buffer-killed-text)
|
|
|
991 (CF_UNICODETEXT . select-buffer-killed-text)
|
|
|
992 ))
|
|
442
|
993
|
|
|
994 ;; Lists of types that are coercible (can be converted to other types)
|
|
771
|
995 (setq selection-coercible-types '(TEXT STRING COMPOUND_TEXT CF_TEXT CF_UNICODETEXT))
|
|
442
|
996
|
|
428
|
997 ;;; select.el ends here
|
