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280
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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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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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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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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 (defun copy-primary-selection ()
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36 "Copy the selection to the Clipboard and the kill ring."
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37 (interactive)
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38 (case (device-type (selected-device))
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39 (x (x-copy-primary-selection))
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40 (mswindows (mswindows-copy-clipboard))
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41 (otherwise nil)))
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42
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43 (defun kill-primary-selection ()
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44 "Copy the selection to the Clipboard and the kill ring, then delete it."
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45 (interactive "*")
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46 (case (device-type (selected-device))
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47 (x (x-kill-primary-selection))
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48 (mswindows (mswindows-cut-clipboard))
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49 (otherwise nil)))
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50
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51 (defun delete-primary-selection ()
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52 "Delete the selection without copying it to the Clipboard or the kill ring."
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53 (interactive "*")
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54 (case (device-type (selected-device))
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55 (x (x-delete-primary-selection))
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56 (otherwise nil)))
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57
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58 (defun yank-clipboard-selection ()
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59 "Insert the current Clipboard selection at point."
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60 (interactive "*")
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61 (case (device-type (selected-device))
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62 (x (x-yank-clipboard-selection))
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63 (mswindows (mswindows-paste-clipboard))
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64 (otherwise nil)))
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65
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66 (defun selection-owner-p (&optional selection)
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67 "Return t if current emacs process owns the given Selection.
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68 The arg should be the name of the selection in question, typically one
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69 of the symbols PRIMARY, SECONDARY, or CLIPBOARD. (For convenience,
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70 the symbol nil is the same as PRIMARY, and t is the same as
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71 SECONDARY.)"
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72 (interactive)
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73 (case (device-type (selected-device))
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74 (x (x-selection-owner-p selection))
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75 (mswindows (mswindows-selection-owner-p selection))
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76 (otherwise nil)))
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77
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78 (defun selection-exists-p (&optional selection)
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79 "Whether there is an owner for the given Selection.
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80 The arg should be the name of the selection in question, typically one
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81 of the symbols PRIMARY, SECONDARY, or CLIPBOARD. (For convenience,
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82 the symbol nil is the same as PRIMARY, and t is the same as
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83 SECONDARY."
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84 (interactive)
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85 (case (device-type (selected-device))
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86 (x (x-selection-exists-p selection))
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87 (mswindows t)
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88 (otherwise nil)))
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89
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90 (defun own-selection (data &optional type)
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91 "Make an Windows selection of type TYPE and value DATA.
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92 The argument TYPE (default `PRIMARY') says which selection,
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93 and DATA specifies the contents. DATA may be a string,
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94 a symbol, an integer (or a cons of two integers or list of two integers).
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95
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96 The selection may also be a cons of two markers pointing to the same buffer,
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97 or an overlay. In these cases, the selection is considered to be the text
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98 between the markers *at whatever time the selection is examined*.
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99 Thus, editing done in the buffer after you specify the selection
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100 can alter the effective value of the selection.
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101
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102 The data may also be a vector of valid non-vector selection values.
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103
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104 Interactively, the text of the region is used as the selection value."
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105 (interactive (if (not current-prefix-arg)
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106 (list (read-string "Store text for pasting: "))
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107 (list (substring (region-beginning) (region-end)))))
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108 (case (device-type (selected-device))
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109 (x (x-own-selection data type))
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110 (mswindows (mswindows-own-selection data type))
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111 (otherwise nil)))
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112
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113 (defun disown-selection (&optional secondary-p)
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114 "Assuming we own the selection, disown it. With an argument, discard the
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115 secondary selection instead of the primary selection."
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116 (case (device-type (selected-device))
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117 (x (x-disown-selection secondary-p))
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118 (mswindows (mswindows-disown-selection secondary-p))
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119 (otherwise nil)))
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120
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121 ;; from x-init.el
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122 ;; selections and active regions
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123
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124 ;; If and only if zmacs-regions is true:
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125
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126 ;; When a mark is pushed and the region goes into the "active" state, we
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127 ;; assert it as the Primary selection. This causes it to be hilighted.
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128 ;; When the region goes into the "inactive" state, we disown the Primary
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129 ;; selection, causing the region to be dehilighted.
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130
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131 ;; Note that it is possible for the region to be in the "active" state
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132 ;; and not be hilighted, if it is in the active state and then some other
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133 ;; application asserts the selection. This is probably not a big deal.
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134
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135 (defun activate-region-as-selection ()
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136 (if (marker-buffer (mark-marker t))
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137 (own-selection (cons (point-marker t) (mark-marker t)))))
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138
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139 ; moved from x-select.el
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140 (defvar primary-selection-extent nil
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141 "The extent of the primary selection; don't use this.")
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142
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143 (defvar secondary-selection-extent nil
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144 "The extent of the secondary selection; don't use this.")
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145
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146 (defun select-make-extent-for-selection (selection previous-extent)
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147 ;; Given a selection, this makes an extent in the buffer which holds that
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148 ;; selection, for highlighting purposes. If the selection isn't associated
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149 ;; with a buffer, this does nothing.
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150 (let ((buffer nil)
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151 (valid (and (extentp previous-extent)
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152 (extent-object previous-extent)
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153 (buffer-live-p (extent-object previous-extent))))
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154 start end)
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155 (cond ((stringp selection)
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156 ;; if we're selecting a string, lose the previous extent used
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157 ;; to highlight the selection.
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158 (setq valid nil))
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159 ((consp selection)
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160 (setq start (min (car selection) (cdr selection))
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161 end (max (car selection) (cdr selection))
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162 valid (and valid
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163 (eq (marker-buffer (car selection))
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164 (extent-object previous-extent)))
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165 buffer (marker-buffer (car selection))))
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166 ((extentp selection)
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167 (setq start (extent-start-position selection)
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168 end (extent-end-position selection)
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169 valid (and valid
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170 (eq (extent-object selection)
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171 (extent-object previous-extent)))
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172 buffer (extent-object selection)))
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173 (t
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174 (signal 'error (list "invalid selection" selection))))
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175
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176 (if valid
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177 nil
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178 (condition-case ()
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179 (if (listp previous-extent)
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180 (mapcar 'delete-extent previous-extent)
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181 (delete-extent previous-extent))
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182 (error nil)))
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183
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184 (if (not buffer)
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185 ;; string case
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186 nil
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187 ;; normal case
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188 (if valid
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189 (set-extent-endpoints previous-extent start end)
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190 (setq previous-extent (make-extent start end buffer))
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191
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192 ;; Make the extent be closed on the right, which means that if
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193 ;; characters are inserted exactly at the end of the extent, the
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194 ;; extent will grow to cover them. This is important for shell
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195 ;; buffers - suppose one makes a selection, and one end is at
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196 ;; point-max. If the shell produces output, that marker will remain
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197 ;; at point-max (its position will increase). So it's important that
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198 ;; the extent exhibit the same behavior, lest the region covered by
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199 ;; the extent (the visual indication), and the region between point
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200 ;; and mark (the actual selection value) become different!
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201 (set-extent-property previous-extent 'end-open nil)
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202
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203 (cond
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204 (mouse-track-rectangle-p
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205 (setq previous-extent (list previous-extent))
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206 (default-mouse-track-next-move-rect start end previous-extent)
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207 ))
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208 previous-extent))))
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209
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210 ;; moved from x-select.el
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211 (defun valid-simple-selection-p (data)
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212 (or (stringp data)
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213 ;FSFmacs huh?? (symbolp data)
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214 (integerp data)
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215 (and (consp data)
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216 (integerp (car data))
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217 (or (integerp (cdr data))
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218 (and (consp (cdr data))
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219 (integerp (car (cdr data))))))
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220 (extentp data)
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221 (and (consp data)
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222 (markerp (car data))
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223 (markerp (cdr data))
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224 (marker-buffer (car data))
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225 (marker-buffer (cdr data))
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226 (eq (marker-buffer (car data))
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227 (marker-buffer (cdr data)))
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228 (buffer-live-p (marker-buffer (car data)))
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229 (buffer-live-p (marker-buffer (cdr data))))))
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230
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231 ;;; select.el ends here
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