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428
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1 ;;; events.el --- event functions for XEmacs.
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2
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3 ;; Copyright (C) 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1996-7 Sun Microsystems, Inc.
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5 ;; Copyright (C) 1996 Ben Wing.
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6
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7 ;; Maintainer: Martin Buchholz
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8 ;; Keywords: internal, event, 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, 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
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36 (defun event-console (event)
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37 "Return the console that EVENT occurred on.
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38 This will be nil for some types of events (e.g. eval events)."
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39 (cdfw-console (event-channel event)))
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40
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41 (defun event-device (event)
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42 "Return the device that EVENT occurred on.
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43 This will be nil for some types of events (e.g. keyboard and eval events)."
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44 (dfw-device (event-channel event)))
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45
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46 (defun event-frame (event)
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47 "Return the frame that EVENT occurred on.
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48 This will be nil for some types of events (e.g. keyboard and eval events)."
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49 (fw-frame (event-channel event)))
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50
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51 (defun event-buffer (event)
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52 "Return the buffer of the window over which mouse event EVENT occurred.
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53 Return nil unless both (mouse-event-p EVENT) and
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54 (event-over-text-area-p EVENT) are non-nil."
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55 (let ((window (event-window event)))
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56 (and (windowp window) (window-buffer window))))
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57
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58 (defalias 'allocate-event 'make-event)
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59
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60
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61 (defun key-press-event-p (object)
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62 "Return t if OBJECT is a key-press event."
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63 (and (event-live-p object) (eq 'key-press (event-type object))))
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64
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65 (defun button-press-event-p (object)
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66 "Return t if OBJECT is a mouse button-press event."
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67 (and (event-live-p object) (eq 'button-press (event-type object))))
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68
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69 (defun button-release-event-p (object)
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70 "Return t if OBJECT is a mouse button-release event."
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71 (and (event-live-p object) (eq 'button-release (event-type object))))
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72
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73 (defun button-event-p (object)
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74 "Return t if OBJECT is a mouse button-press or button-release event."
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75 (and (event-live-p object)
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76 (memq (event-type object) '(button-press button-release))
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77 t))
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78
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79 (defun motion-event-p (object)
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80 "Return t if OBJECT is a mouse motion event."
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81 (and (event-live-p object) (eq 'motion (event-type object))))
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82
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83 (defun mouse-event-p (object)
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84 "Return t if OBJECT is a mouse button-press, button-release or motion event."
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85 (and (event-live-p object)
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86 (memq (event-type object) '(button-press button-release motion))
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87 t))
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88
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89 (defun process-event-p (object)
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90 "Return t if OBJECT is a process-output event."
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91 (and (event-live-p object) (eq 'process (event-type object))))
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92
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93 (defun timeout-event-p (object)
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94 "Return t if OBJECT is a timeout event."
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95 (and (event-live-p object) (eq 'timeout (event-type object))))
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96
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97 (defun eval-event-p (object)
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98 "Return t if OBJECT is an eval event."
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99 (and (event-live-p object) (eq 'eval (event-type object))))
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100
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101 (defun misc-user-event-p (object)
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102 "Return t if OBJECT is a misc-user event.
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103 A misc-user event is a user event that is not a keypress or mouse click;
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104 normally this means a menu selection or scrollbar action."
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105 (and (event-live-p object) (eq 'misc-user (event-type object))))
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106
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107 ;; You could just as easily use event-glyph but we include this for
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108 ;; consistency.
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109
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110 (defun event-over-glyph-p (object)
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111 "Return t if OBJECT is a mouse event occurring over a glyph.
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112 Mouse events are events of type button-press, button-release or motion."
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113 (and (event-live-p object) (event-glyph object) t))
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114
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115 (defun keyboard-translate (&rest pairs)
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116 "Translate character or keysym FROM to TO at a low level.
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117 Multiple FROM-TO pairs may be specified.
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118
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119 See `keyboard-translate-table' for more information."
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120 (while pairs
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121 (puthash (pop pairs) (pop pairs) keyboard-translate-table)))
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122
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123 (defun set-character-of-keysym (keysym character)
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124 "Make CHARACTER be inserted when KEYSYM is pressed,
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125 and the key has been bound to `self-insert-command'. "
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126 (check-argument-type 'symbolp keysym)
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127 (check-argument-type 'characterp character)
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128 (put keysym 'character-of-keysym character))
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129
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130 (defun get-character-of-keysym (keysym)
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131 "Return the character inserted when KEYSYM is pressed,
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132 and the key is bound to `self-insert-command'. "
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133 (check-argument-type 'symbolp keysym)
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134 (event-to-character (make-event 'key-press (list 'key keysym))))
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135
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136 ;; We could take the first few of these out by removing the "/* Optimize for
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137 ;; ASCII keysyms */" code in event-Xt.c, and I've a suspicion that may be
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138 ;; the right thing to do anyway.
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139
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140 (loop for (keysym char) in
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141 '((tab ?\t)
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142 (linefeed ?\n)
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143 (clear ?\014)
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144 (return ?\r)
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145 (escape ?\e)
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146 (space ? )
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428
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147
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148 ;; Do the same voodoo for the keypad keys. I used to bind these to
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149 ;; keyboard macros (for instance, kp-0 was bound to "0") so that they
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150 ;; would track the bindings of the corresponding keys by default, but
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151 ;; that made the display of M-x describe-bindings much harder to read,
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152 ;; so now we'll just bind them to self-insert by default. Not a big
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153 ;; difference...
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428
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154
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2828
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155 (kp-0 ?0)
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156 (kp-1 ?1)
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157 (kp-2 ?2)
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158 (kp-3 ?3)
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159 (kp-4 ?4)
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160 (kp-5 ?5)
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161 (kp-6 ?6)
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162 (kp-7 ?7)
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163 (kp-8 ?8)
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164 (kp-9 ?9)
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165
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166 (kp-space ? )
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167 (kp-tab ?\t)
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168 (kp-enter ?\r)
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169 (kp-equal ?=)
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170 (kp-multiply ?*)
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171 (kp-add ?+)
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172 (kp-separator ?,)
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173 (kp-subtract ?-)
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174 (kp-decimal ?.)
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175 (kp-divide ?/))
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176 do (set-character-of-keysym keysym char))
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428
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177
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178 ;;; events.el ends here
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