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428
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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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6
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Keywords: extensions, dumped
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; 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 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; 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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444
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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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428
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24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Synched up with: Not in FSF
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28
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29 ;;; Commentary:
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30
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444
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31 ;; This file is dumped with XEmacs
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32
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33 ;;; Code:
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34
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35 (defvar selected-text-type
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36 (if (featurep 'mule) '(COMPOUND_TEXT STRING) 'STRING)
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37 "The type atom used to obtain selections from the X server.
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38 Can be either a valid X selection data type, or a list of such types.
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39 COMPOUND_TEXT and STRING are the most commonly used data types.
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40 If a list is provided, the types are tried in sequence until
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41 there is a successful conversion.")
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42
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444
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43 (defvar selection-sets-clipboard nil
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428
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44 "Controls the selection's relationship to the clipboard.
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45 When non-nil, any operation that sets the primary selection will also
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46 set the clipboard.")
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47
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48 (defun copy-primary-selection ()
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49 "Copy the selection to the Clipboard and the kill ring."
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50 (interactive)
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51 (and (console-on-window-system-p)
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52 (cut-copy-clear-internal 'copy)))
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53
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54 (defun kill-primary-selection ()
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55 "Copy the selection to the Clipboard and the kill ring, then delete it."
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56 (interactive "*")
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57 (and (console-on-window-system-p)
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58 (cut-copy-clear-internal 'cut)))
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59
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60 (defun delete-primary-selection ()
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61 "Delete the selection without copying it to the Clipboard or the kill ring."
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62 (interactive "*")
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63 (and (console-on-window-system-p)
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64 (cut-copy-clear-internal 'clear)))
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65
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66 (defun yank-clipboard-selection ()
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67 "Insert the current Clipboard selection at point."
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68 (interactive "*")
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69 (when (console-on-window-system-p)
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70 (setq last-command nil)
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71 (setq this-command 'yank) ; so that yank-pop works.
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72 (let ((clip (get-clipboard)))
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73 (or clip (error "there is no clipboard selection"))
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74 (push-mark)
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75 (insert clip))))
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76
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77 (defun get-clipboard ()
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78 "Return text pasted to the clipboard."
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79 (get-selection 'CLIPBOARD))
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80
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81 (define-device-method get-cutbuffer
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82 "Return the value of one of the cut buffers.
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83 This will do nothing under anything other than X.")
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84
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85 (defun get-selection-no-error (&optional type data-type)
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442
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86 "Return the value of a window-system selection.
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428
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87 The argument TYPE (default `PRIMARY') says which selection,
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88 and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
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444
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89 says how to convert the data. Returns NIL if there is no selection."
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442
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90 (condition-case nil (get-selection type data-type) (t nil)))
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91
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92 (defun get-selection (&optional type data-type)
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442
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93 "Return the value of a window-system selection.
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428
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94 The argument TYPE (default `PRIMARY') says which selection,
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95 and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
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96 says how to convert the data. If there is no selection an error is signalled."
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97 (or type (setq type 'PRIMARY))
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98 (or data-type (setq data-type selected-text-type))
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99 (let ((text
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100 (if (consp data-type)
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101 (condition-case err
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102 (get-selection-internal type (car data-type))
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103 (selection-conversion-error
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104 (if (cdr data-type)
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105 (get-selection type (cdr data-type))
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106 (signal (car err) (cdr err)))))
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107 (get-selection-internal type data-type))))
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108 text))
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109
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110 ;; FSFmacs calls this `x-set-selection', and reverses the
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442
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111 ;; first two arguments (duh ...). This order is more logical.
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112 (defun own-selection (data &optional type how-to-add data-type)
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113 "Make a window-system selection of type TYPE and value DATA.
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114 The argument TYPE (default `PRIMARY') says which selection,
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115 and DATA specifies the contents. DATA may be any lisp data type
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116 that can be converted using the function corresponding to DATA-TYPE
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117 in `select-converter-alist'---strings are the usual choice, but
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118 other types may be permissible depending on the DATA-TYPE parameter
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119 (if DATA-TYPE is not supplied, the default behavior is window
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120 system specific, but strings are always accepted).
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121 HOW-TO-ADD may be any of the following:
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122
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123 'replace-all or nil -- replace all data in the selection.
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124 'replace-existing -- replace data for specified DATA-TYPE only.
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125 'append or t -- append data to existing DATA-TYPE data.
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126
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127 DATA-TYPE is the window-system specific data type identifier
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128 (see `register-selection-data-type' for more information).
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428
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129
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130 The selection may also be a cons of two markers pointing to the same buffer,
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131 or an overlay. In these cases, the selection is considered to be the text
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442
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132 between the markers *at whatever time the selection is examined* (note
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133 that the window system clipboard does not necessarily duplicate this
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134 behavior - it doesn't on mswindows for example).
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135 Thus, editing done in the buffer after you specify the selection
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136 can alter the effective value of the selection.
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137
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138 The data may also be a vector of valid non-vector selection values.
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139
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140 Interactively, the text of the region is used as the selection value."
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141 (interactive (if (not current-prefix-arg)
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142 (list (read-string "Store text for pasting: "))
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143 (list (substring (region-beginning) (region-end)))))
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442
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144 ;; calling own-selection-internal will mess this up, so preserve it.
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145 (let ((zmacs-region-stays zmacs-region-stays))
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146 ;FSFmacs huh?? It says:
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147 ;; "This is for temporary compatibility with pre-release Emacs 19."
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148 ;(if (stringp type)
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149 ; (setq type (intern type)))
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150 (or type (setq type 'PRIMARY))
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151 (if (null data)
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152 (disown-selection-internal type)
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153 (own-selection-internal type data how-to-add data-type)
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154 (when (and (eq type 'PRIMARY)
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155 selection-sets-clipboard)
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156 (own-selection-internal 'CLIPBOARD data how-to-add data-type)))
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157 (cond ((eq type 'PRIMARY)
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158 (setq primary-selection-extent
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159 (select-make-extent-for-selection
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160 data primary-selection-extent)))
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161 ((eq type 'SECONDARY)
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162 (setq secondary-selection-extent
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163 (select-make-extent-for-selection
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164 data secondary-selection-extent)))))
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165 ;; zmacs-region-stays is for commands, not low-level functions.
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166 ;; when behaving as the latter, we better not set it, or we will
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167 ;; cause unwanted sticky-region behavior in kill-region and friends.
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168 (if (interactive-p)
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169 (setq zmacs-region-stays t))
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428
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170 data)
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171
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172 (defun dehilight-selection (selection)
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173 "for use as a value of `lost-selection-hooks'."
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174 (cond ((eq selection 'PRIMARY)
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175 (if primary-selection-extent
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176 (let ((inhibit-quit t))
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177 (if (consp primary-selection-extent)
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178 (mapcar 'delete-extent primary-selection-extent)
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179 (delete-extent primary-selection-extent))
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180 (setq primary-selection-extent nil)))
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181 (if zmacs-regions (zmacs-deactivate-region)))
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182 ((eq selection 'SECONDARY)
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183 (if secondary-selection-extent
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184 (let ((inhibit-quit t))
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185 (if (consp secondary-selection-extent)
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186 (mapcar 'delete-extent secondary-selection-extent)
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187 (delete-extent secondary-selection-extent))
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188 (setq secondary-selection-extent nil)))))
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189 nil)
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190
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191 (setq lost-selection-hooks 'dehilight-selection)
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192
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442
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193 (defun own-clipboard (string &optional push)
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194 "Paste the given string to the window system Clipboard.
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195 See `interprogram-cut-function' for more information."
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196 (own-selection string 'CLIPBOARD))
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197
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198 (defun disown-selection (&optional secondary-p)
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199 "Assuming we own the selection, disown it.
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200 With an argument, discard the secondary selection instead of the
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201 primary selection."
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428
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202 (disown-selection-internal (if secondary-p 'SECONDARY 'PRIMARY))
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203 (when (and selection-sets-clipboard
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204 (or (not secondary-p)
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205 (eq secondary-p 'PRIMARY)
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206 (eq secondary-p 'CLIPBOARD)))
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207 (disown-selection-internal 'CLIPBOARD)))
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208
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209 ;; selections and active regions
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210
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211 ;; If and only if zmacs-regions is true:
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212
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213 ;; When a mark is pushed and the region goes into the "active" state, we
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214 ;; assert it as the Primary selection. This causes it to be hilighted.
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215 ;; When the region goes into the "inactive" state, we disown the Primary
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216 ;; selection, causing the region to be dehilighted.
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217
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218 ;; Note that it is possible for the region to be in the "active" state
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219 ;; and not be hilighted, if it is in the active state and then some other
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220 ;; application asserts the selection. This is probably not a big deal.
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221
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222 (defun activate-region-as-selection ()
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487
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223 (cond (mouse-track-rectangle-p (mouse-track-activate-rectangular-selection))
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224 ((marker-buffer (mark-marker t))
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225 (own-selection (cons (point-marker t) (mark-marker t))))))
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428
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226
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227 (defvar primary-selection-extent nil
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228 "The extent of the primary selection; don't use this.")
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229
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230 (defvar secondary-selection-extent nil
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231 "The extent of the secondary selection; don't use this.")
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232
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233 (defun select-make-extent-for-selection (selection previous-extent)
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234 ;; Given a selection, this makes an extent in the buffer which holds that
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235 ;; selection, for highlighting purposes. If the selection isn't associated
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236 ;; with a buffer, this does nothing.
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237 (let ((buffer nil)
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238 (valid (and (extentp previous-extent)
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239 (extent-object previous-extent)
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240 (buffer-live-p (extent-object previous-extent))))
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241 start end)
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242 (cond ((stringp selection)
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243 ;; if we're selecting a string, lose the previous extent used
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244 ;; to highlight the selection.
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245 (setq valid nil))
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246 ((consp selection)
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247 (setq start (min (car selection) (cdr selection))
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248 end (max (car selection) (cdr selection))
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249 valid (and valid
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250 (eq (marker-buffer (car selection))
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251 (extent-object previous-extent)))
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252 buffer (marker-buffer (car selection))))
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253 ((extentp selection)
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254 (setq start (extent-start-position selection)
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255 end (extent-end-position selection)
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256 valid (and valid
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257 (eq (extent-object selection)
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258 (extent-object previous-extent)))
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259 buffer (extent-object selection)))
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260 (t
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261 (signal 'error (list "invalid selection" selection))))
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262
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263 (if valid
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264 nil
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265 (condition-case ()
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266 (if (listp previous-extent)
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267 (mapcar 'delete-extent previous-extent)
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268 (delete-extent previous-extent))
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269 (error nil)))
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270
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271 (if (not buffer)
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272 ;; string case
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273 nil
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274 ;; normal case
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275 (if valid
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276 (set-extent-endpoints previous-extent start end)
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277 (setq previous-extent (make-extent start end buffer))
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278
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279 ;; Make the extent be closed on the right, which means that if
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280 ;; characters are inserted exactly at the end of the extent, the
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281 ;; extent will grow to cover them. This is important for shell
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282 ;; buffers - suppose one makes a selection, and one end is at
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283 ;; point-max. If the shell produces output, that marker will remain
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284 ;; at point-max (its position will increase). So it's important that
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285 ;; the extent exhibit the same behavior, lest the region covered by
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286 ;; the extent (the visual indication), and the region between point
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287 ;; and mark (the actual selection value) become different!
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288 (set-extent-property previous-extent 'end-open nil)
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289
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290 (cond
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291 (mouse-track-rectangle-p
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292 (setq previous-extent (list previous-extent))
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293 (default-mouse-track-next-move-rect start end previous-extent)
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294 ))
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295 previous-extent))))
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296
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297 (defun valid-simple-selection-p (data)
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442
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298 "An obsolete function that tests whether something was a valid simple
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299 selection using the old XEmacs selection support. You shouldn't use this
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300 any more, because just about anything could be a valid selection now."
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428
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301 (or (stringp data)
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302 ;FSFmacs huh?? (symbolp data)
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303 (integerp data)
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304 (and (consp data)
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305 (integerp (car data))
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306 (or (integerp (cdr data))
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307 (and (consp (cdr data))
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308 (integerp (car (cdr data))))))
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309 (extentp data)
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310 (and (consp data)
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311 (markerp (car data))
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312 (markerp (cdr data))
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313 (marker-buffer (car data))
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314 (marker-buffer (cdr data))
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315 (eq (marker-buffer (car data))
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316 (marker-buffer (cdr data)))
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317 (buffer-live-p (marker-buffer (car data)))
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318 (buffer-live-p (marker-buffer (cdr data))))))
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319
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320 (defun cut-copy-clear-internal (mode)
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321 (or (memq mode '(cut copy clear)) (error "unkown mode %S" mode))
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322 (or (selection-owner-p)
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323 (error "XEmacs does not own the primary selection"))
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324 (setq last-command nil)
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325 (or primary-selection-extent
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326 (error "the primary selection is not an extent?"))
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327 (save-excursion
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328 (let (rect-p b s e)
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329 (cond
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330 ((consp primary-selection-extent)
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331 (setq rect-p t
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332 b (extent-object (car primary-selection-extent))
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333 s (extent-start-position (car primary-selection-extent))
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334 e (extent-end-position (car (reverse primary-selection-extent)))))
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335 (t
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336 (setq rect-p nil
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337 b (extent-object primary-selection-extent)
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338 s (extent-start-position primary-selection-extent)
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339 e (extent-end-position primary-selection-extent))))
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340 (set-buffer b)
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341 (cond ((memq mode '(cut copy))
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342 (if rect-p
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343 (progn
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344 ;; why is killed-rectangle free? Is it used somewhere?
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345 ;; should it be defvarred?
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346 (setq killed-rectangle (extract-rectangle s e))
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347 (kill-new (mapconcat #'identity killed-rectangle "\n")))
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348 (copy-region-as-kill s e))
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349 ;; Maybe killing doesn't own clipboard. Make sure it happens.
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350 ;; This memq is kind of grody, because they might have done it
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351 ;; some other way, but owning the clipboard twice in that case
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352 ;; wouldn't actually hurt anything.
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353 (or (and (consp kill-hooks) (memq 'own-clipboard kill-hooks))
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354 (own-clipboard (car kill-ring)))))
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355 (cond ((memq mode '(cut clear))
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356 (if rect-p
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357 (delete-rectangle s e)
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358 (delete-region s e))))
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359 (disown-selection nil)
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360 )))
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361
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442
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362
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428
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363 ;;; Functions to convert the selection into various other selection
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442
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364 ;;; types.
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365
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366 ;; These next three functions get called by C code...
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367 (defun select-convert-in (selection type value)
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368 "Attempt to convert the specified external VALUE to the specified DATA-TYPE,
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369 for the specified SELECTION. Return nil if this is impossible, or a
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370 suitable internal representation otherwise."
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371 (when value
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372 (let ((handler-fn (cdr (assq type selection-converter-in-alist))))
|
|
|
373 (when handler-fn
|
|
|
374 (apply handler-fn (list selection type value))))))
|
|
428
|
375
|
|
442
|
376 (defun select-convert-out (selection type value)
|
|
|
377 "Attempt to convert the specified internal VALUE for the specified DATA-TYPE
|
|
|
378 and SELECTION. Return nil if this is impossible, or a suitable external
|
|
|
379 representation otherwise."
|
|
|
380 (when value
|
|
|
381 (let ((handler-fn (cdr (assq type selection-converter-out-alist))))
|
|
|
382 (when handler-fn
|
|
|
383 (apply handler-fn (list selection type value))))))
|
|
|
384
|
|
|
385 (defun select-coerce (selection type value)
|
|
|
386 "Attempt to convert the specified internal VALUE to a representation
|
|
|
387 suitable for return from `get-selection' in the specified DATA-TYPE. Return
|
|
|
388 nil if this is impossible, or a suitable representation otherwise."
|
|
|
389 (when value
|
|
|
390 (let ((handler-fn (cdr (assq type selection-coercion-alist))))
|
|
|
391 (when handler-fn
|
|
|
392 (apply handler-fn (list selection type value))))))
|
|
|
393
|
|
|
394 ;; The rest of the functions on this "page" are conversion handlers,
|
|
|
395 ;; append handlers and buffer-kill handlers.
|
|
428
|
396 (defun select-convert-to-text (selection type value)
|
|
|
397 (cond ((stringp value)
|
|
|
398 value)
|
|
|
399 ((extentp value)
|
|
|
400 (save-excursion
|
|
|
401 (set-buffer (extent-object value))
|
|
|
402 (save-restriction
|
|
|
403 (widen)
|
|
|
404 (buffer-substring (extent-start-position value)
|
|
|
405 (extent-end-position value)))))
|
|
|
406 ((and (consp value)
|
|
|
407 (markerp (car value))
|
|
|
408 (markerp (cdr value)))
|
|
|
409 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
|
|
|
410 (signal 'error
|
|
|
411 (list "markers must be in the same buffer"
|
|
|
412 (car value) (cdr value))))
|
|
|
413 (save-excursion
|
|
|
414 (set-buffer (or (marker-buffer (car value))
|
|
|
415 (error "selection is in a killed buffer")))
|
|
|
416 (save-restriction
|
|
|
417 (widen)
|
|
|
418 (buffer-substring (car value) (cdr value)))))
|
|
|
419 (t nil)))
|
|
|
420
|
|
442
|
421 (defun select-coerce-to-text (selection type value)
|
|
|
422 (select-convert-to-text selection type value))
|
|
|
423
|
|
|
424 (defun select-convert-from-text (selection type value)
|
|
|
425 (when (stringp value)
|
|
|
426 value))
|
|
|
427
|
|
428
|
428 (defun select-convert-to-string (selection type value)
|
|
|
429 (let ((outval (select-convert-to-text selection type value)))
|
|
442
|
430 ;; force the string to be not in Compound Text format. This grubby
|
|
|
431 ;; hack will go soon, to be replaced by a more general mechanism.
|
|
428
|
432 (if (stringp outval)
|
|
|
433 (cons 'STRING outval)
|
|
|
434 outval)))
|
|
|
435
|
|
|
436 (defun select-convert-to-compound-text (selection type value)
|
|
|
437 ;; converts to compound text automatically
|
|
|
438 (select-convert-to-text selection type value))
|
|
|
439
|
|
|
440 (defun select-convert-to-length (selection type value)
|
|
|
441 (let ((value
|
|
|
442 (cond ((stringp value)
|
|
|
443 (length value))
|
|
|
444 ((extentp value)
|
|
|
445 (extent-length value))
|
|
|
446 ((and (consp value)
|
|
|
447 (markerp (car value))
|
|
|
448 (markerp (cdr value)))
|
|
|
449 (or (eq (marker-buffer (car value))
|
|
|
450 (marker-buffer (cdr value)))
|
|
|
451 (signal 'error
|
|
|
452 (list "markers must be in the same buffer"
|
|
|
453 (car value) (cdr value))))
|
|
|
454 (abs (- (car value) (cdr value)))))))
|
|
|
455 (if value ; force it to be in 32-bit format.
|
|
|
456 (cons (ash value -16) (logand value 65535))
|
|
|
457 nil)))
|
|
|
458
|
|
442
|
459 (defun select-convert-from-length (selection type value)
|
|
|
460 (select-convert-to-length selection type value))
|
|
|
461
|
|
428
|
462 (defun select-convert-to-targets (selection type value)
|
|
|
463 ;; return a vector of atoms, but remove duplicates first.
|
|
|
464 (let* ((all (cons 'TIMESTAMP (mapcar 'car selection-converter-alist)))
|
|
|
465 (rest all))
|
|
|
466 (while rest
|
|
|
467 (cond ((memq (car rest) (cdr rest))
|
|
|
468 (setcdr rest (delq (car rest) (cdr rest))))
|
|
|
469 (t
|
|
|
470 (setq rest (cdr rest)))))
|
|
|
471 (apply 'vector all)))
|
|
|
472
|
|
|
473 (defun select-convert-to-delete (selection type value)
|
|
|
474 (disown-selection-internal selection)
|
|
|
475 ;; A return value of nil means that we do not know how to do this conversion,
|
|
|
476 ;; and replies with an "error". A return value of NULL means that we have
|
|
|
477 ;; done the conversion (and any side-effects) but have no value to return.
|
|
|
478 'NULL)
|
|
|
479
|
|
|
480 (defun select-convert-to-filename (selection type value)
|
|
|
481 (cond ((extentp value)
|
|
|
482 (buffer-file-name (or (extent-object value)
|
|
|
483 (error "selection is in a killed buffer"))))
|
|
|
484 ((and (consp value)
|
|
|
485 (markerp (car value))
|
|
|
486 (markerp (cdr value)))
|
|
|
487 (buffer-file-name (or (marker-buffer (car value))
|
|
|
488 (error "selection is in a killed buffer"))))
|
|
|
489 (t nil)))
|
|
|
490
|
|
442
|
491 (defun select-convert-from-filename (selection type value)
|
|
|
492 (when (stringp value)
|
|
|
493 value))
|
|
|
494
|
|
428
|
495 (defun select-convert-to-charpos (selection type value)
|
|
|
496 (let (a b tmp)
|
|
|
497 (cond ((cond ((extentp value)
|
|
|
498 (setq a (extent-start-position value)
|
|
|
499 b (extent-end-position value)))
|
|
|
500 ((and (consp value)
|
|
|
501 (markerp (car value))
|
|
|
502 (markerp (cdr value)))
|
|
|
503 (setq a (car value)
|
|
|
504 b (cdr value))))
|
|
|
505 (setq a (1- a) b (1- b)) ; zero-based
|
|
|
506 (if (< b a) (setq tmp a a b b tmp))
|
|
|
507 (cons 'SPAN
|
|
|
508 (vector (cons (ash a -16) (logand a 65535))
|
|
|
509 (cons (ash b -16) (logand b 65535))))))))
|
|
|
510
|
|
|
511 (defun select-convert-to-lineno (selection type value)
|
|
|
512 (let (a b buf tmp)
|
|
|
513 (cond ((cond ((extentp value)
|
|
|
514 (setq buf (extent-object value)
|
|
|
515 a (extent-start-position value)
|
|
|
516 b (extent-end-position value)))
|
|
|
517 ((and (consp value)
|
|
|
518 (markerp (car value))
|
|
|
519 (markerp (cdr value)))
|
|
|
520 (setq a (marker-position (car value))
|
|
|
521 b (marker-position (cdr value))
|
|
|
522 buf (marker-buffer (car value)))))
|
|
|
523 (save-excursion
|
|
|
524 (set-buffer buf)
|
|
|
525 (save-restriction
|
|
|
526 (widen)
|
|
|
527 (goto-char a)
|
|
|
528 (beginning-of-line)
|
|
|
529 (setq a (1+ (count-lines 1 (point))))
|
|
|
530 (goto-char b)
|
|
|
531 (beginning-of-line)
|
|
|
532 (setq b (1+ (count-lines 1 (point))))))
|
|
|
533 (if (< b a) (setq tmp a a b b tmp))
|
|
|
534 (cons 'SPAN
|
|
|
535 (vector (cons (ash a -16) (logand a 65535))
|
|
|
536 (cons (ash b -16) (logand b 65535))))))))
|
|
|
537
|
|
|
538 (defun select-convert-to-colno (selection type value)
|
|
|
539 (let (a b buf tmp)
|
|
|
540 (cond ((cond ((extentp value)
|
|
|
541 (setq buf (extent-object value)
|
|
|
542 a (extent-start-position value)
|
|
|
543 b (extent-end-position value)))
|
|
|
544 ((and (consp value)
|
|
|
545 (markerp (car value))
|
|
|
546 (markerp (cdr value)))
|
|
|
547 (setq a (car value)
|
|
|
548 b (cdr value)
|
|
|
549 buf (marker-buffer a))))
|
|
|
550 (save-excursion
|
|
|
551 (set-buffer buf)
|
|
|
552 (goto-char a)
|
|
|
553 (setq a (current-column))
|
|
|
554 (goto-char b)
|
|
|
555 (setq b (current-column)))
|
|
|
556 (if (< b a) (setq tmp a a b b tmp))
|
|
|
557 (cons 'SPAN
|
|
|
558 (vector (cons (ash a -16) (logand a 65535))
|
|
|
559 (cons (ash b -16) (logand b 65535))))))))
|
|
|
560
|
|
|
561 (defun select-convert-to-sourceloc (selection type value)
|
|
|
562 (let (a b buf file-name tmp)
|
|
|
563 (cond ((cond ((extentp value)
|
|
|
564 (setq buf (or (extent-object value)
|
|
|
565 (error "selection is in a killed buffer"))
|
|
|
566 a (extent-start-position value)
|
|
|
567 b (extent-end-position value)
|
|
|
568 file-name (buffer-file-name buf)))
|
|
|
569 ((and (consp value)
|
|
|
570 (markerp (car value))
|
|
|
571 (markerp (cdr value)))
|
|
|
572 (setq a (marker-position (car value))
|
|
|
573 b (marker-position (cdr value))
|
|
|
574 buf (or (marker-buffer (car value))
|
|
|
575 (error "selection is in a killed buffer"))
|
|
|
576 file-name (buffer-file-name buf))))
|
|
|
577 (save-excursion
|
|
|
578 (set-buffer buf)
|
|
|
579 (save-restriction
|
|
|
580 (widen)
|
|
|
581 (goto-char a)
|
|
|
582 (beginning-of-line)
|
|
|
583 (setq a (1+ (count-lines 1 (point))))
|
|
|
584 (goto-char b)
|
|
|
585 (beginning-of-line)
|
|
|
586 (setq b (1+ (count-lines 1 (point))))))
|
|
|
587 (if (< b a) (setq tmp a a b b tmp))
|
|
|
588 (format "%s:%d" file-name a)))))
|
|
|
589
|
|
|
590 (defun select-convert-to-os (selection type size)
|
|
|
591 (symbol-name system-type))
|
|
|
592
|
|
|
593 (defun select-convert-to-host (selection type size)
|
|
|
594 (system-name))
|
|
|
595
|
|
|
596 (defun select-convert-to-user (selection type size)
|
|
|
597 (user-full-name))
|
|
|
598
|
|
|
599 (defun select-convert-to-class (selection type size)
|
|
442
|
600 (symbol-value 'x-emacs-application-class))
|
|
428
|
601
|
|
|
602 ;; We do not try to determine the name Emacs was invoked with,
|
|
|
603 ;; because it is not clean for a program's behavior to depend on that.
|
|
|
604 (defun select-convert-to-name (selection type size)
|
|
|
605 ;invocation-name
|
|
|
606 "xemacs")
|
|
|
607
|
|
|
608 (defun select-convert-to-integer (selection type value)
|
|
|
609 (and (integerp value)
|
|
|
610 (cons (ash value -16) (logand value 65535))))
|
|
|
611
|
|
442
|
612 ;; Can convert from the following integer representations
|
|
|
613 ;;
|
|
|
614 ;; integer
|
|
|
615 ;; (integer . integer)
|
|
|
616 ;; (integer integer)
|
|
|
617 ;; (list [integer|(integer . integer)]*)
|
|
|
618 ;; (vector [integer|(integer . integer)]*)
|
|
|
619 ;;
|
|
|
620 ;; Cons'd integers get cleaned up a little.
|
|
|
621
|
|
|
622 (defun select-convert-from-integer (selection type value)
|
|
|
623 (cond ((integerp value) ; Integer
|
|
|
624 value)
|
|
444
|
625
|
|
442
|
626 ((and (consp value) ; (integer . integer)
|
|
|
627 (integerp (car value))
|
|
|
628 (integerp (cdr value)))
|
|
|
629 (if (eq (car value) 0)
|
|
|
630 (cdr value)
|
|
|
631 (if (and (eq (car value) -1)
|
|
|
632 (< (cdr value) 0))
|
|
|
633 (cdr value)
|
|
|
634 value)))
|
|
444
|
635
|
|
442
|
636 ((and (listp value) ; (integer integer)
|
|
|
637 (eq (length value) 2)
|
|
|
638 (integerp (car value))
|
|
|
639 (integerp (cadr value)))
|
|
|
640 (if (eq (car value) 0)
|
|
|
641 (cadr value)
|
|
|
642 (if (and (eq (car value) -1)
|
|
|
643 (< (cdr value) 0))
|
|
|
644 (- (cadr value))
|
|
|
645 (cons (car value) (cadr value)))))
|
|
444
|
646
|
|
442
|
647 ((listp value) ; list
|
|
|
648 (if (cdr value)
|
|
|
649 (mapcar '(lambda (x)
|
|
|
650 (select-convert-from-integer selection type x))
|
|
|
651 value)
|
|
|
652 (select-convert-from-integer selection type (car value))))
|
|
444
|
653
|
|
442
|
654 ((vectorp value) ; vector
|
|
|
655 (if (eq (length value) 1)
|
|
|
656 (select-convert-from-integer selection type (aref value 0))
|
|
|
657 (mapvector '(lambda (x)
|
|
|
658 (select-convert-from-integer selection type x))
|
|
|
659 value)))
|
|
444
|
660
|
|
442
|
661 (t nil)
|
|
|
662 ))
|
|
|
663
|
|
428
|
664 (defun select-convert-to-atom (selection type value)
|
|
|
665 (and (symbolp value) value))
|
|
|
666
|
|
442
|
667 ;;; CF_xxx conversions
|
|
|
668 (defun select-convert-from-cf-text (selection type value)
|
|
|
669 (replace-in-string (if (string-match "\0" value)
|
|
|
670 (substring value 0 (match-beginning 0))
|
|
|
671 value)
|
|
|
672 "\\(\r\n\\|\n\r\\)" "\n" t))
|
|
|
673
|
|
|
674 (defun select-convert-to-cf-text (selection type value)
|
|
|
675 (let ((text (select-convert-to-text selection type value)))
|
|
|
676 (concat (replace-in-string text "\n" "\r\n" t) "\0")))
|
|
|
677
|
|
|
678 ;;; Appenders
|
|
|
679 (defun select-append-to-text (selection type value1 value2)
|
|
|
680 (let ((text1 (select-convert-to-text selection 'STRING value1))
|
|
|
681 (text2 (select-convert-to-text selection 'STRING value2)))
|
|
|
682 (if (and text1 text2)
|
|
|
683 (concat text1 text2)
|
|
|
684 nil)))
|
|
|
685
|
|
|
686 (defun select-append-to-string (selection type value1 value2)
|
|
|
687 (select-append-to-text selection type value1 value2))
|
|
|
688
|
|
|
689 (defun select-append-to-compound-text (selection type value1 value2)
|
|
|
690 (select-append-to-text selection type value1 value2))
|
|
|
691
|
|
|
692 (defun select-append-to-cf-text (selection type value1 value2)
|
|
|
693 (let ((text1 (select-convert-from-cf-text selection 'CF_TEXT value1))
|
|
|
694 (text2 (select-convert-from-cf-text selection 'CF_TEXT value2)))
|
|
|
695 (if (and text1 text2)
|
|
|
696 (select-convert-to-cf-text selection type (concat text1 text2))
|
|
|
697 nil)))
|
|
428
|
698
|
|
442
|
699 (defun select-append-default (selection type value1 value2)
|
|
|
700 ;; This appender gets used if the type is "nil" - i.e. default.
|
|
|
701 ;; It should probably have more cases implemented than it does - e.g.
|
|
|
702 ;; appending numbers to strings, etc...
|
|
|
703 (cond ((and (stringp value1) (stringp value2))
|
|
|
704 (select-append-to-string selection 'STRING value1 value2))
|
|
|
705 (t nil)))
|
|
|
706
|
|
|
707 ;;; Buffer kill handlers
|
|
|
708
|
|
|
709 (defun select-buffer-killed-default (selection type value buffer)
|
|
|
710 ;; This handler gets used if the type is "nil".
|
|
|
711 (cond ((extentp value)
|
|
|
712 (if (eq (extent-object value) buffer)
|
|
|
713 ; If this selection is on the clipboard, grab it quick
|
|
|
714 (when (eq selection 'CLIPBOARD)
|
|
|
715 (save-excursion
|
|
|
716 (set-buffer (extent-object value))
|
|
|
717 (save-restriction
|
|
|
718 (widen)
|
|
|
719 (buffer-substring (extent-start-position value)
|
|
|
720 (extent-end-position value)))))
|
|
|
721 value))
|
|
|
722 ((markerp value)
|
|
|
723 (unless (eq (marker-buffer value) buffer)
|
|
|
724 value))
|
|
|
725 ((and (consp value)
|
|
|
726 (markerp (car value))
|
|
|
727 (markerp (cdr value)))
|
|
|
728 (if (or (eq (marker-buffer (car value)) buffer)
|
|
|
729 (eq (marker-buffer (cdr value)) buffer))
|
|
|
730 ; If this selection is on the clipboard, grab it quick
|
|
|
731 (when (eq selection 'CLIPBOARD)
|
|
|
732 (save-excursion
|
|
|
733 (set-buffer (marker-buffer (car value)))
|
|
|
734 (save-restriction
|
|
|
735 (widen)
|
|
|
736 (buffer-substring (car value) (cdr value)))))
|
|
|
737 value))
|
|
|
738 (t value)))
|
|
|
739
|
|
|
740 (defun select-buffer-killed-text (selection type value buffer)
|
|
|
741 (select-buffer-killed-default selection type value buffer))
|
|
444
|
742
|
|
442
|
743 ;; Types listed in here can be selections of XEmacs
|
|
|
744 (setq selection-converter-out-alist
|
|
428
|
745 '((TEXT . select-convert-to-text)
|
|
|
746 (STRING . select-convert-to-string)
|
|
|
747 (COMPOUND_TEXT . select-convert-to-compound-text)
|
|
|
748 (TARGETS . select-convert-to-targets)
|
|
|
749 (LENGTH . select-convert-to-length)
|
|
|
750 (DELETE . select-convert-to-delete)
|
|
|
751 (FILE_NAME . select-convert-to-filename)
|
|
|
752 (CHARACTER_POSITION . select-convert-to-charpos)
|
|
|
753 (SOURCE_LOC . select-convert-to-sourceloc)
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754 (LINE_NUMBER . select-convert-to-lineno)
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755 (COLUMN_NUMBER . select-convert-to-colno)
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756 (OWNER_OS . select-convert-to-os)
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757 (HOST_NAME . select-convert-to-host)
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758 (USER . select-convert-to-user)
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759 (CLASS . select-convert-to-class)
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760 (NAME . select-convert-to-name)
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761 (ATOM . select-convert-to-atom)
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762 (INTEGER . select-convert-to-integer)
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442
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763 (CF_TEXT . select-convert-to-cf-text)
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764 ))
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765
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766 ;; Types listed here can be selections foreign to XEmacs
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767 (setq selection-converter-in-alist
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768 '(; Specific types that get handled by generic converters
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769 (COMPOUND_TEXT . select-convert-from-text)
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770 (SOURCE_LOC . select-convert-from-text)
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771 (OWNER_OS . select-convert-from-text)
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772 (HOST_NAME . select-convert-from-text)
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773 (USER . select-convert-from-text)
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774 (CLASS . select-convert-from-text)
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775 (NAME . select-convert-from-text)
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776 ; Generic types
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777 (INTEGER . select-convert-from-integer)
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778 (TEXT . select-convert-from-text)
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779 (STRING . select-convert-from-text)
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780 (LENGTH . select-convert-from-length)
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781 (FILE_NAME . select-convert-from-filename)
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782 (CF_TEXT . select-convert-from-cf-text)
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428
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783 ))
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784
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442
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785 ;; Types listed here have special coercion functions that can munge
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786 ;; other types. This can also be used to add special features - e.g.
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787 ;; being able to pass a region or a cons of markers to own-selection,
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788 ;; but getting the *current* text in the region back when calling
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789 ;; get-selection.
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790 ;;
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791 ;; Any function listed in here *will be called* whenever a value of
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792 ;; its type is retrieved from the internal selection cache, or when
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793 ;; no suitable values could be found in which case XEmacs looks for
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794 ;; values with types listed in selection-coercible-types.
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795 (setq selection-coercion-alist
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796 '((TEXT . select-coerce-to-text)
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797 (STRING . select-coerce-to-text)
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798 (COMPOUND_TEXT . select-coerce-to-text)
|
|
|
799 (CF_TEXT . select-coerce-to-text)))
|
|
|
800
|
|
|
801 ;; Types listed here can be appended by own-selection
|
|
|
802 (setq selection-appender-alist
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|
803 '((nil . select-append-default)
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|
804 (TEXT . select-append-to-text)
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|
|
805 (STRING . select-append-to-string)
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|
806 (COMPOUND_TEXT . select-append-to-compound-text)
|
|
|
807 (CF_TEXT . select-append-to-cf-text)
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|
|
808 ))
|
|
|
809
|
|
|
810 ;; Types listed here have buffer-kill handlers
|
|
|
811 (setq selection-buffer-killed-alist
|
|
|
812 '((nil . select-buffer-killed-default)
|
|
|
813 (TEXT . select-buffer-killed-text)
|
|
|
814 (STRING . select-buffer-killed-text)
|
|
|
815 (COMPOUND_TEXT . select-buffer-killed-text)
|
|
|
816 (CF_TEXT . select-buffer-killed-text)))
|
|
|
817
|
|
|
818 ;; Lists of types that are coercible (can be converted to other types)
|
|
|
819 (setq selection-coercible-types '(TEXT STRING COMPOUND_TEXT))
|
|
|
820
|
|
428
|
821 ;;; select.el ends here
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