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0
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1 /* Events: printing them, converting them to and from characters.
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2 Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
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3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 /* This file has been Mule-ized. */
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25
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26 #include <config.h>
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27 #include "lisp.h"
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28 #include "buffer.h"
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29 #include "console.h"
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30 #include "console-tty.h" /* for stuff in character_to_event */
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31 #include "device.h"
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32 #include "console-x.h" /* for x_event_name prototype */
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33 #include "extents.h" /* Just for the EXTENTP abort check... */
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34 #include "events.h"
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35 #include "frame.h"
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36 #include "glyphs.h"
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37 #include "keymap.h" /* for key_desc_list_to_event() */
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38 #include "redisplay.h"
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39 #include "window.h"
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40
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100
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41 #ifdef WINDOWSNT
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42 /* Hmm, under unix we want X modifiers, under NT we want X modifiers if
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43 we are running X and Windows modifiers otherwise.
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44 gak. This is a kludge until we support multiple native GUIs!
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45 */
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46 #undef MOD_ALT
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47 #undef MOD_CONTROL
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48 #undef MOD_SHIFT
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49 #endif
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50
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157
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51 #include "events-mod.h"
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100
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52
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0
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53 /* Where old events go when they are explicitly deallocated.
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54 The event chain here is cut loose before GC, so these will be freed
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55 eventually.
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56 */
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57 static Lisp_Object Vevent_resource;
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58
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59 Lisp_Object Qeventp;
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60 Lisp_Object Qevent_live_p;
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61 Lisp_Object Qkey_press_event_p;
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62 Lisp_Object Qbutton_event_p;
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63 Lisp_Object Qmouse_event_p;
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64 Lisp_Object Qprocess_event_p;
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65
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163
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66 Lisp_Object Qkey_press, Qbutton_press, Qbutton_release, Qmisc_user;
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0
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67 Lisp_Object Qascii_character;
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68
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69 /* #### Ad-hoc hack. Should be part of define_lrecord_implementation */
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70 void
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71 clear_event_resource (void)
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72 {
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73 Vevent_resource = Qnil;
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74 }
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75
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76 static Lisp_Object mark_event (Lisp_Object, void (*) (Lisp_Object));
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77 static void print_event (Lisp_Object, Lisp_Object, int);
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78 static int event_equal (Lisp_Object, Lisp_Object, int);
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79 static unsigned long event_hash (Lisp_Object obj, int depth);
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80 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("event", event,
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81 mark_event, print_event, 0, event_equal,
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82 event_hash, struct Lisp_Event);
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83
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84 /* Make sure we lose quickly if we try to use this event */
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85 static void
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86 deinitialize_event (Lisp_Object ev)
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87 {
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88 int i;
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89 struct Lisp_Event *event = XEVENT (ev);
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90
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91 for (i = 0; i < ((sizeof (struct Lisp_Event)) / sizeof (int)); i++)
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92 ((int *) event) [i] = 0xdeadbeef;
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93 event->event_type = dead_event;
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94 event->channel = Qnil;
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95 set_lheader_implementation (&(event->lheader), lrecord_event);
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96 XSET_EVENT_NEXT (ev, Qnil);
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97 }
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98
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99 /* Set everything to zero or nil so that it's predictable. */
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100 void
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101 zero_event (struct Lisp_Event *e)
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102 {
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103 memset (e, 0, sizeof (*e));
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104 set_lheader_implementation (&(e->lheader), lrecord_event);
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105 e->event_type = empty_event;
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106 e->next = Qnil;
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107 e->channel = Qnil;
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108 }
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109
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110 static Lisp_Object
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111 mark_event (Lisp_Object obj, void (*markobj) (Lisp_Object))
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112 {
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113 struct Lisp_Event *event = XEVENT (obj);
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114
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115 switch (event->event_type)
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116 {
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117 case key_press_event:
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118 ((markobj) (event->event.key.keysym));
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119 break;
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120 case process_event:
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121 ((markobj) (event->event.process.process));
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122 break;
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123 case timeout_event:
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124 ((markobj) (event->event.timeout.function));
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125 ((markobj) (event->event.timeout.object));
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126 break;
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127 case eval_event:
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128 case misc_user_event:
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129 ((markobj) (event->event.eval.function));
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130 ((markobj) (event->event.eval.object));
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131 break;
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132 case magic_eval_event:
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133 ((markobj) (event->event.magic_eval.object));
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134 break;
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135 case button_press_event:
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136 case button_release_event:
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137 case pointer_motion_event:
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138 case magic_event:
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139 case empty_event:
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140 case dead_event:
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141 break;
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142 default:
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143 abort ();
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144 }
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145 ((markobj) (event->channel));
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146 return event->next;
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147 }
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148
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149 static void
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150 print_event_1 (CONST char *str, Lisp_Object obj, Lisp_Object printcharfun)
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151 {
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152 char buf[255];
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153 write_c_string (str, printcharfun);
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154 format_event_object (buf, XEVENT (obj), 0);
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155 write_c_string (buf, printcharfun);
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156 }
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157
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158 static void
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159 print_event (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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160 {
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161 if (print_readably)
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162 error ("printing unreadable object #<event>");
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163
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173
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164 switch (XEVENT (obj)->event_type)
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0
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165 {
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166 case key_press_event:
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167 print_event_1 ("#<keypress-event ", obj, printcharfun);
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168 break;
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169 case button_press_event:
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170 print_event_1 ("#<buttondown-event ", obj, printcharfun);
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171 break;
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172 case button_release_event:
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173 print_event_1 ("#<buttonup-event ", obj, printcharfun);
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174 break;
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175 case magic_event:
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176 case magic_eval_event:
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177 print_event_1 ("#<magic-event ", obj, printcharfun);
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178 break;
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179 case pointer_motion_event:
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180 {
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181 char buf[100];
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182 sprintf (buf, "#<motion-event %d, %d",
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183 XEVENT (obj)->event.motion.x, XEVENT (obj)->event.motion.y);
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184 write_c_string (buf, printcharfun);
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185 break;
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186 }
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187 case process_event:
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188 write_c_string ("#<process-event ", printcharfun);
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189 print_internal (XEVENT (obj)->event.process.process, printcharfun, 1);
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190 break;
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191 case timeout_event:
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192 write_c_string ("#<timeout-event ", printcharfun);
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193 print_internal (XEVENT (obj)->event.timeout.object, printcharfun, 1);
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194 break;
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195 case empty_event:
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196 write_c_string ("#<empty-event", printcharfun);
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197 break;
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198 case misc_user_event:
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199 case eval_event:
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200 write_c_string ("#<", printcharfun);
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201 if (XEVENT (obj)->event_type == misc_user_event)
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202 write_c_string ("misc-user", printcharfun);
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203 else
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204 write_c_string ("eval", printcharfun);
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205 write_c_string ("-event (", printcharfun);
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206 print_internal (XEVENT (obj)->event.eval.function, printcharfun, 1);
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207 write_c_string (" ", printcharfun);
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208 print_internal (XEVENT (obj)->event.eval.object, printcharfun, 1);
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209 write_c_string (")", printcharfun);
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210 break;
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211 case dead_event:
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212 write_c_string ("#<DEALLOCATED-EVENT", printcharfun);
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213 break;
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214 default:
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215 write_c_string ("#<UNKNOWN-EVENT-TYPE", printcharfun);
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216 break;
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217 }
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218 write_c_string (">", printcharfun);
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219 }
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173
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220
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0
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221 static int
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222 event_equal (Lisp_Object o1, Lisp_Object o2, int depth)
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223 {
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224 struct Lisp_Event *e1 = XEVENT (o1);
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225 struct Lisp_Event *e2 = XEVENT (o2);
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226
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227 if (e1->event_type != e2->event_type) return 0;
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228 if (!EQ (e1->channel, e2->channel)) return 0;
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229 /* if (e1->timestamp != e2->timestamp) return 0; */
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230 switch (e1->event_type)
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231 {
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232 case process_event:
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149
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233 return EQ (e1->event.process.process, e2->event.process.process);
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173
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234
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0
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235 case timeout_event:
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195
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236 return (internal_equal (e1->event.timeout.function,
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237 e2->event.timeout.function, 0) &&
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238 internal_equal (e1->event.timeout.object,
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239 e2->event.timeout.object, 0));
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173
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240
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0
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241 case key_press_event:
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149
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242 return (EQ (e1->event.key.keysym, e2->event.key.keysym) &&
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243 (e1->event.key.modifiers == e2->event.key.modifiers));
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0
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244
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245 case button_press_event:
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246 case button_release_event:
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149
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247 return (e1->event.button.button == e2->event.button.button &&
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248 e1->event.button.modifiers == e2->event.button.modifiers);
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0
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249
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250 case pointer_motion_event:
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149
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251 return (e1->event.motion.x == e2->event.motion.x &&
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252 e1->event.motion.y == e2->event.motion.y);
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0
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253
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254 case misc_user_event:
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255 case eval_event:
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195
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256 return (internal_equal (e1->event.eval.function,
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257 e2->event.eval.function, 0) &&
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258 internal_equal (e1->event.eval.object,
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259 e2->event.eval.object, 0));
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0
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260
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261 case magic_eval_event:
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149
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262 return (e1->event.magic_eval.internal_function ==
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263 e2->event.magic_eval.internal_function &&
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195
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264 internal_equal (e1->event.magic_eval.object,
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265 e2->event.magic_eval.object, 0));
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0
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266
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267 case magic_event:
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268 {
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183
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269 struct console *con = XCONSOLE (CDFW_CONSOLE (e1->channel));
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0
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270
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271 #ifdef HAVE_X_WINDOWS
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183
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272 if (CONSOLE_X_P (con))
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273 return (e1->event.magic.underlying_x_event.xany.serial ==
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274 e2->event.magic.underlying_x_event.xany.serial);
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0
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275 #endif
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149
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276 #ifdef HAVE_TTY
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183
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277 if (CONSOLE_TTY_P (con))
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0
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278 return (e1->event.magic.underlying_tty_event ==
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279 e2->event.magic.underlying_tty_event);
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149
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280 #endif
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183
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281 return 1; /* not reached */
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0
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282 }
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283
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284 case empty_event: /* Empty and deallocated events are equal. */
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285 case dead_event:
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286 return 1;
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287
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288 default:
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289 abort ();
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290 return 0; /* not reached; warning suppression */
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291 }
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292 }
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293
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294 static unsigned long
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295 event_hash (Lisp_Object obj, int depth)
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296 {
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297 struct Lisp_Event *e = XEVENT (obj);
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298 unsigned long hash;
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299
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300 hash = HASH2 (e->event_type, LISP_HASH (e->channel));
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301 switch (e->event_type)
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302 {
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303 case process_event:
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304 return HASH2 (hash, LISP_HASH (e->event.process.process));
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173
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305
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0
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306 case timeout_event:
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307 return HASH3 (hash, internal_hash (e->event.timeout.function, depth + 1),
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308 internal_hash (e->event.timeout.object, depth + 1));
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173
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309
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0
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310 case key_press_event:
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311 return HASH3 (hash, LISP_HASH (e->event.key.keysym),
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312 e->event.key.modifiers);
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313
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314 case button_press_event:
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315 case button_release_event:
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316 return HASH3 (hash, e->event.button.button, e->event.button.modifiers);
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317
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318 case pointer_motion_event:
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319 return HASH3 (hash, e->event.motion.x, e->event.motion.y);
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320
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321 case misc_user_event:
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322 case eval_event:
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323 return HASH3 (hash, internal_hash (e->event.eval.function, depth + 1),
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324 internal_hash (e->event.eval.object, depth + 1));
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325
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326 case magic_eval_event:
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327 return HASH3 (hash,
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328 (unsigned long) e->event.magic_eval.internal_function,
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329 internal_hash (e->event.magic_eval.object, depth + 1));
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330
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331 case magic_event:
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332 {
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183
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333 struct console *con = XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e)));
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0
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334 #ifdef HAVE_X_WINDOWS
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183
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335 if (CONSOLE_X_P (con))
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336 return HASH2 (hash, e->event.magic.underlying_x_event.xany.serial);
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0
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337 #endif
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183
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338 #ifdef HAVE_TTY
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339 if (CONSOLE_TTY_P (con))
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340 return HASH2 (hash, e->event.magic.underlying_tty_event);
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341 #endif
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0
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342 }
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343
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344 case empty_event:
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345 case dead_event:
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346 return hash;
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347
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348 default:
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349 abort ();
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350 }
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351
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183
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352 return 0; /* unreached */
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0
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353 }
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354
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355
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189
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356 DEFUN ("make-event", Fmake_event, 0, 2, 0, /*
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357 Create a new event of type TYPE, with properties stored in PLIST.
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358 TYPE is a symbol, either `empty', `key-press', `button-press',
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359 `button-release', or `motion'. If TYPE is left out, it defaults to
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360 `empty'.
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361 PLIST is a list of properties, as returned by `event-properties'. Not
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362 all properties are allowed for all kinds of events, and some are
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363 required.
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0
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364
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365 WARNING, the event object returned may be a reused one; see the function
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189
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366 `deallocate-event'.
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20
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367 */
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189
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368 (type, plist))
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0
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369 {
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189
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370 Lisp_Object event, prop, val;
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371 struct Lisp_Event *e;
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372
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373 if (NILP (type))
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374 type = Qempty;
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0
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375
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376 if (!NILP (Vevent_resource))
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377 {
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378 event = Vevent_resource;
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379 Vevent_resource = XEVENT_NEXT (event);
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380 }
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381 else
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382 {
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383 event = allocate_event ();
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384 }
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189
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385 e = XEVENT (event);
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386 zero_event (e);
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387
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388 if (EQ (type, Qkey_press))
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389 e->event_type = key_press_event;
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390 else if (EQ (type, Qbutton_press))
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391 e->event_type = button_press_event;
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392 else if (EQ (type, Qbutton_release))
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393 e->event_type = button_release_event;
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|
|
394 else if (EQ (type, Qmotion))
|
|
|
395 e->event_type = pointer_motion_event;
|
|
|
396 else if (EQ (type, Qempty))
|
|
|
397 e->event_type = empty_event;
|
|
|
398 else
|
|
|
399 /* not allowed: Qmisc_user, Qprocess, Qtimeout, Qmagic, Qmagic_eval */
|
|
|
400 signal_simple_error ("Invalid event type", type);
|
|
|
401
|
|
|
402 /* Process the plist. */
|
|
|
403 while (!NILP (plist))
|
|
|
404 {
|
|
|
405 prop = Fcar (plist);
|
|
|
406 plist = Fcdr (plist);
|
|
|
407 val = Fcar (plist);
|
|
|
408 plist = Fcdr (plist);
|
|
|
409 if (EQ (prop, Qchannel))
|
|
|
410 {
|
|
|
411 if (!DEVICEP (val) && !CONSOLEP (val) && !FRAMEP (val)
|
|
|
412 && !NILP (val))
|
|
|
413 signal_simple_error ("Invalid event channel", val);
|
|
|
414 EVENT_CHANNEL (e) = val;
|
|
|
415 }
|
|
|
416 else if (EQ (prop, Qkey))
|
|
|
417 {
|
|
|
418 if (e->event_type != key_press_event)
|
|
|
419 wrong_type_argument (Qkey_press_event_p, event);
|
|
|
420 if (!SYMBOLP (val) && !CHARP (val))
|
|
|
421 signal_simple_error ("Invalid event key", val);
|
|
|
422 e->event.key.keysym = val;
|
|
|
423 }
|
|
|
424 else if (EQ (prop, Qbutton))
|
|
|
425 {
|
|
|
426 CHECK_NATNUM (val);
|
|
|
427 check_int_range (XINT(val), 1, 3);
|
|
|
428 if (e->event_type != button_press_event
|
|
|
429 && e->event_type != button_release_event)
|
|
|
430 signal_simple_error ("Invalid event type for `button' property",
|
|
|
431 type);
|
|
|
432 e->event.button.button = XINT (val);
|
|
|
433 }
|
|
|
434 else if (EQ (prop, Qmodifiers))
|
|
|
435 {
|
|
|
436 Lisp_Object tail, sym;
|
|
|
437 int modifiers = 0;
|
|
|
438
|
|
|
439 if (e->event_type != key_press_event
|
|
|
440 && e->event_type != button_press_event
|
|
|
441 && e->event_type != button_release_event
|
|
|
442 && e->event_type != pointer_motion_event)
|
|
|
443 signal_simple_error ("Invalid event type for modifiers", type);
|
|
|
444
|
|
|
445 for (tail = val; !NILP (tail); tail = Fcdr (tail))
|
|
|
446 {
|
|
|
447 sym = Fcar (tail);
|
|
|
448 if (EQ (sym, Qcontrol)) modifiers |= MOD_CONTROL;
|
|
|
449 else if (EQ (sym, Qmeta)) modifiers |= MOD_META;
|
|
|
450 else if (EQ (sym, Qsuper)) modifiers |= MOD_SUPER;
|
|
|
451 else if (EQ (sym, Qhyper)) modifiers |= MOD_HYPER;
|
|
|
452 else if (EQ (sym, Qalt)) modifiers |= MOD_ALT;
|
|
|
453 else if (EQ (sym, Qsymbol)) modifiers |= MOD_ALT;
|
|
|
454 else if (EQ (sym, Qshift)) modifiers |= MOD_SHIFT;
|
|
|
455 else
|
|
|
456 signal_simple_error ("Invalid key modifier", Fcar (tail));
|
|
|
457 }
|
|
|
458 if (e->event_type == key_press_event)
|
|
|
459 e->event.key.modifiers = modifiers;
|
|
|
460 else if (e->event_type == button_press_event
|
|
|
461 || e->event_type == button_release_event)
|
|
|
462 e->event.button.modifiers = modifiers;
|
|
|
463 else /* pointer_motion_event */
|
|
|
464 e->event.motion.modifiers = modifiers;
|
|
|
465 }
|
|
|
466 else if (EQ (prop, Qx))
|
|
|
467 {
|
|
|
468 CHECK_NATNUM (val);
|
|
|
469 if (e->event_type == pointer_motion_event)
|
|
|
470 e->event.motion.x = XINT (val);
|
|
|
471 else if (e->event_type == button_press_event
|
|
|
472 || e->event_type == button_release_event)
|
|
|
473 e->event.button.x = XINT (val);
|
|
|
474 }
|
|
|
475 else if (EQ (prop, Qy))
|
|
|
476 {
|
|
|
477 CHECK_NATNUM (val);
|
|
|
478 if (e->event_type == pointer_motion_event)
|
|
|
479 e->event.motion.y = XINT (val);
|
|
|
480 else if (e->event_type == button_press_event
|
|
|
481 || e->event_type == button_release_event)
|
|
|
482 e->event.button.y = XINT (val);
|
|
|
483 }
|
|
|
484 else if (EQ (prop, Qtimestamp))
|
|
|
485 {
|
|
|
486 CHECK_NATNUM (val);
|
|
|
487 e->timestamp = XINT (val);
|
|
|
488 }
|
|
|
489 else
|
|
|
490 signal_simple_error ("Invalid property", prop);
|
|
|
491 } /* while */
|
|
|
492
|
|
|
493 /* Now, let's validate what we got. */
|
|
|
494 switch (e->event_type)
|
|
|
495 {
|
|
|
496 case key_press_event:
|
|
|
497 if (!(SYMBOLP (e->event.key.keysym) || CHARP (e->event.key.keysym)))
|
|
|
498 error ("Undefined key for keypress event");
|
|
|
499 break;
|
|
|
500 case button_press_event:
|
|
|
501 case button_release_event:
|
|
|
502 if (!e->event.button.button)
|
|
|
503 error ("Undefined button for button-press or button-release event");
|
|
|
504 if (NILP (EVENT_CHANNEL (e)))
|
|
|
505 error ("Undefined channel for button-press or button-release event");
|
|
|
506 break;
|
|
|
507 default:
|
|
|
508 break;
|
|
|
509 }
|
|
0
|
510 return event;
|
|
|
511 }
|
|
|
512
|
|
20
|
513 DEFUN ("deallocate-event", Fdeallocate_event, 1, 1, 0, /*
|
|
0
|
514 Allow the given event structure to be reused.
|
|
|
515 You MUST NOT use this event object after calling this function with it.
|
|
|
516 You will lose. It is not necessary to call this function, as event
|
|
|
517 objects are garbage-collected like all other objects; however, it may
|
|
|
518 be more efficient to explicitly deallocate events when you are sure
|
|
2
|
519 that it is safe to do so.
|
|
20
|
520 */
|
|
|
521 (event))
|
|
0
|
522 {
|
|
|
523 CHECK_EVENT (event);
|
|
|
524
|
|
|
525 if (XEVENT_TYPE (event) == dead_event)
|
|
|
526 error ("this event is already deallocated!");
|
|
|
527
|
|
|
528 assert (XEVENT_TYPE (event) <= last_event_type);
|
|
|
529
|
|
|
530 #if 0
|
|
173
|
531 {
|
|
|
532 int i, len;
|
|
0
|
533 extern Lisp_Object Vlast_command_event;
|
|
|
534 extern Lisp_Object Vlast_input_event, Vunread_command_event;
|
|
|
535 extern Lisp_Object Vthis_command_keys, Vrecent_keys_ring;
|
|
|
536
|
|
173
|
537 if (EQ (event, Vlast_command_event) ||
|
|
|
538 EQ (event, Vlast_input_event) ||
|
|
|
539 EQ (event, Vunread_command_event))
|
|
0
|
540 abort ();
|
|
173
|
541
|
|
|
542 len = XVECTOR_LENGTH (Vthis_command_keys);
|
|
|
543 for (i = 0; i < len; i++)
|
|
|
544 if (EQ (event, XVECTOR_DATA (Vthis_command_keys) [i]))
|
|
0
|
545 abort ();
|
|
153
|
546 if (!NILP (Vrecent_keys_ring))
|
|
|
547 {
|
|
173
|
548 int recent_ring_len = XVECTOR_LENGTH (Vrecent_keys_ring);
|
|
|
549 for (i = 0; i < recent_ring_len; i++)
|
|
|
550 if (EQ (event, XVECTOR_DATA (Vrecent_keys_ring) [i]))
|
|
153
|
551 abort ();
|
|
|
552 }
|
|
0
|
553 }
|
|
|
554 #endif /* 0 */
|
|
|
555
|
|
|
556 assert (!EQ (event, Vevent_resource));
|
|
|
557 deinitialize_event (event);
|
|
|
558 #ifndef ALLOC_NO_POOLS
|
|
|
559 XSET_EVENT_NEXT (event, Vevent_resource);
|
|
|
560 Vevent_resource = event;
|
|
|
561 #endif
|
|
|
562 return Qnil;
|
|
|
563 }
|
|
|
564
|
|
20
|
565 DEFUN ("copy-event", Fcopy_event, 1, 2, 0, /*
|
|
0
|
566 Make a copy of the given event object.
|
|
|
567 If a second argument is given, the first event is copied into the second
|
|
|
568 and the second is returned. If the second argument is not supplied (or
|
|
|
569 is nil) then a new event will be made as with `allocate-event.' See also
|
|
|
570 the function `deallocate-event'.
|
|
20
|
571 */
|
|
|
572 (event1, event2))
|
|
0
|
573 {
|
|
|
574 CHECK_LIVE_EVENT (event1);
|
|
|
575 if (NILP (event2))
|
|
189
|
576 event2 = Fmake_event (Qnil, Qnil);
|
|
0
|
577 else CHECK_LIVE_EVENT (event2);
|
|
|
578 if (EQ (event1, event2))
|
|
|
579 return signal_simple_continuable_error_2
|
|
|
580 ("copy-event called with `eq' events", event1, event2);
|
|
|
581
|
|
|
582 assert (XEVENT_TYPE (event1) <= last_event_type);
|
|
|
583 assert (XEVENT_TYPE (event2) <= last_event_type);
|
|
|
584
|
|
|
585 {
|
|
|
586 Lisp_Object save_next = XEVENT_NEXT (event2);
|
|
|
587
|
|
|
588 *XEVENT (event2) = *XEVENT (event1);
|
|
|
589 XSET_EVENT_NEXT (event2, save_next);
|
|
173
|
590 return event2;
|
|
0
|
591 }
|
|
|
592 }
|
|
|
593
|
|
|
594
|
|
|
595
|
|
|
596 /* Given a chain of events (or possibly nil), deallocate them all. */
|
|
|
597
|
|
|
598 void
|
|
|
599 deallocate_event_chain (Lisp_Object event_chain)
|
|
|
600 {
|
|
|
601 while (!NILP (event_chain))
|
|
|
602 {
|
|
|
603 Lisp_Object next = XEVENT_NEXT (event_chain);
|
|
|
604 Fdeallocate_event (event_chain);
|
|
|
605 event_chain = next;
|
|
|
606 }
|
|
|
607 }
|
|
|
608
|
|
|
609 /* Return the last event in a chain.
|
|
|
610 NOTE: You cannot pass nil as a value here! The routine will
|
|
|
611 abort if you do. */
|
|
|
612
|
|
|
613 Lisp_Object
|
|
|
614 event_chain_tail (Lisp_Object event_chain)
|
|
|
615 {
|
|
|
616 while (1)
|
|
|
617 {
|
|
|
618 Lisp_Object next = XEVENT_NEXT (event_chain);
|
|
|
619 if (NILP (next))
|
|
|
620 return event_chain;
|
|
|
621 event_chain = next;
|
|
|
622 }
|
|
|
623 }
|
|
|
624
|
|
|
625 /* Enqueue a single event onto the end of a chain of events.
|
|
|
626 HEAD points to the first event in the chain, TAIL to the last event.
|
|
|
627 If the chain is empty, both values should be nil. */
|
|
|
628
|
|
|
629 void
|
|
|
630 enqueue_event (Lisp_Object event, Lisp_Object *head, Lisp_Object *tail)
|
|
|
631 {
|
|
|
632 assert (NILP (XEVENT_NEXT (event)));
|
|
|
633 assert (!EQ (*tail, event));
|
|
|
634
|
|
|
635 if (!NILP (*tail))
|
|
|
636 XSET_EVENT_NEXT (*tail, event);
|
|
|
637 else
|
|
|
638 *head = event;
|
|
|
639 *tail = event;
|
|
|
640
|
|
|
641 assert (!EQ (event, XEVENT_NEXT (event)));
|
|
|
642 }
|
|
|
643
|
|
|
644 /* Remove an event off the head of a chain of events and return it.
|
|
|
645 HEAD points to the first event in the chain, TAIL to the last event. */
|
|
173
|
646
|
|
0
|
647 Lisp_Object
|
|
|
648 dequeue_event (Lisp_Object *head, Lisp_Object *tail)
|
|
|
649 {
|
|
|
650 Lisp_Object event;
|
|
|
651
|
|
|
652 event = *head;
|
|
|
653 *head = XEVENT_NEXT (event);
|
|
|
654 XSET_EVENT_NEXT (event, Qnil);
|
|
|
655 if (NILP (*head))
|
|
|
656 *tail = Qnil;
|
|
|
657 return event;
|
|
|
658 }
|
|
|
659
|
|
|
660 /* Enqueue a chain of events (or possibly nil) onto the end of another
|
|
|
661 chain of events. HEAD points to the first event in the chain being
|
|
|
662 queued onto, TAIL to the last event. If the chain is empty, both values
|
|
|
663 should be nil. */
|
|
|
664
|
|
|
665 void
|
|
|
666 enqueue_event_chain (Lisp_Object event_chain, Lisp_Object *head,
|
|
|
667 Lisp_Object *tail)
|
|
|
668 {
|
|
|
669 if (NILP (event_chain))
|
|
|
670 return;
|
|
|
671
|
|
|
672 if (NILP (*head))
|
|
|
673 {
|
|
|
674 *head = event_chain;
|
|
|
675 *tail = event_chain;
|
|
|
676 }
|
|
|
677 else
|
|
|
678 {
|
|
|
679 XSET_EVENT_NEXT (*tail, event_chain);
|
|
|
680 *tail = event_chain_tail (event_chain);
|
|
|
681 }
|
|
|
682 }
|
|
|
683
|
|
|
684 /* Return the number of events (possibly 0) on an event chain. */
|
|
|
685
|
|
|
686 int
|
|
|
687 event_chain_count (Lisp_Object event_chain)
|
|
|
688 {
|
|
|
689 Lisp_Object event;
|
|
|
690 int n = 0;
|
|
|
691
|
|
|
692 EVENT_CHAIN_LOOP (event, event_chain)
|
|
|
693 n++;
|
|
|
694
|
|
|
695 return n;
|
|
|
696 }
|
|
|
697
|
|
|
698 /* Find the event before EVENT in an event chain. This aborts
|
|
|
699 if the event is not in the chain. */
|
|
|
700
|
|
|
701 Lisp_Object
|
|
|
702 event_chain_find_previous (Lisp_Object event_chain, Lisp_Object event)
|
|
|
703 {
|
|
|
704 Lisp_Object previous = Qnil;
|
|
|
705
|
|
|
706 while (!NILP (event_chain))
|
|
|
707 {
|
|
|
708 if (EQ (event_chain, event))
|
|
|
709 return previous;
|
|
|
710 previous = event_chain;
|
|
|
711 event_chain = XEVENT_NEXT (event_chain);
|
|
|
712 }
|
|
|
713
|
|
|
714 abort ();
|
|
|
715 return Qnil;
|
|
|
716 }
|
|
|
717
|
|
|
718 Lisp_Object
|
|
|
719 event_chain_nth (Lisp_Object event_chain, int n)
|
|
|
720 {
|
|
|
721 Lisp_Object event;
|
|
|
722 EVENT_CHAIN_LOOP (event, event_chain)
|
|
|
723 {
|
|
|
724 if (!n)
|
|
|
725 return event;
|
|
|
726 n--;
|
|
|
727 }
|
|
|
728 return Qnil;
|
|
|
729 }
|
|
|
730
|
|
|
731 Lisp_Object
|
|
|
732 copy_event_chain (Lisp_Object event_chain)
|
|
|
733 {
|
|
|
734 Lisp_Object new_chain = Qnil;
|
|
|
735 Lisp_Object new_chain_tail = Qnil;
|
|
|
736 Lisp_Object event;
|
|
|
737
|
|
|
738 EVENT_CHAIN_LOOP (event, event_chain)
|
|
|
739 {
|
|
|
740 Lisp_Object copy = Fcopy_event (event, Qnil);
|
|
|
741 enqueue_event (copy, &new_chain, &new_chain_tail);
|
|
|
742 }
|
|
|
743
|
|
|
744 return new_chain;
|
|
|
745 }
|
|
|
746
|
|
|
747
|
|
|
748
|
|
|
749 Lisp_Object QKbackspace, QKtab, QKlinefeed, QKreturn, QKescape,
|
|
|
750 QKspace, QKdelete;
|
|
|
751
|
|
|
752 int
|
|
|
753 command_event_p (Lisp_Object event)
|
|
|
754 {
|
|
|
755 switch (XEVENT_TYPE (event))
|
|
|
756 {
|
|
|
757 case key_press_event:
|
|
|
758 case button_press_event:
|
|
|
759 case button_release_event:
|
|
|
760 case misc_user_event:
|
|
173
|
761 return 1;
|
|
0
|
762 default:
|
|
173
|
763 return 0;
|
|
0
|
764 }
|
|
|
765 }
|
|
|
766
|
|
|
767
|
|
|
768 void
|
|
|
769 character_to_event (Emchar c, struct Lisp_Event *event, struct console *con,
|
|
|
770 int use_console_meta_flag)
|
|
|
771 {
|
|
|
772 Lisp_Object k = Qnil;
|
|
|
773 unsigned int m = 0;
|
|
|
774 if (event->event_type == dead_event)
|
|
|
775 error ("character-to-event called with a deallocated event!");
|
|
|
776
|
|
70
|
777 #ifndef MULE
|
|
0
|
778 c &= 255;
|
|
70
|
779 #endif
|
|
0
|
780 if (c > 127 && c <= 255)
|
|
|
781 {
|
|
|
782 int meta_flag = 1;
|
|
|
783 if (use_console_meta_flag && CONSOLE_TTY_P (con))
|
|
|
784 meta_flag = TTY_FLAGS (con).meta_key;
|
|
|
785 switch (meta_flag)
|
|
|
786 {
|
|
|
787 case 0: /* ignore top bit; it's parity */
|
|
|
788 c -= 128;
|
|
|
789 break;
|
|
|
790 case 1: /* top bit is meta */
|
|
|
791 c -= 128;
|
|
|
792 m = MOD_META;
|
|
|
793 break;
|
|
|
794 default: /* this is a real character */
|
|
|
795 break;
|
|
|
796 }
|
|
|
797 }
|
|
|
798 if (c < ' ') c += '@', m |= MOD_CONTROL;
|
|
|
799 if (m & MOD_CONTROL)
|
|
|
800 {
|
|
|
801 switch (c)
|
|
|
802 {
|
|
|
803 case 'I': k = QKtab; m &= ~MOD_CONTROL; break;
|
|
|
804 case 'J': k = QKlinefeed; m &= ~MOD_CONTROL; break;
|
|
|
805 case 'M': k = QKreturn; m &= ~MOD_CONTROL; break;
|
|
|
806 case '[': k = QKescape; m &= ~MOD_CONTROL; break;
|
|
|
807 # if 0
|
|
|
808 /* This is probably too controversial... */
|
|
|
809 case 'H': k = QKbackspace; m &= ~MOD_CONTROL; break;
|
|
|
810 # endif
|
|
|
811 }
|
|
|
812 if (c >= 'A' && c <= 'Z') c -= 'A'-'a';
|
|
|
813 }
|
|
|
814 else if (c == 127)
|
|
|
815 k = QKdelete;
|
|
|
816 else if (c == ' ')
|
|
|
817 k = QKspace;
|
|
173
|
818
|
|
2
|
819 event->event_type = key_press_event;
|
|
|
820 event->timestamp = 0; /* #### */
|
|
|
821 event->channel = make_console (con);
|
|
|
822 event->event.key.keysym = (!NILP (k) ? k : make_char (c));
|
|
|
823 event->event.key.modifiers = m;
|
|
0
|
824 }
|
|
|
825
|
|
|
826
|
|
|
827 /* This variable controls what character name -> character code mapping
|
|
|
828 we are using. Window-system-specific code sets this to some symbol,
|
|
|
829 and we use that symbol as the plist key to convert keysyms into 8-bit
|
|
|
830 codes. In this way one can have several character sets predefined and
|
|
|
831 switch them by changing this.
|
|
|
832 */
|
|
|
833 Lisp_Object Vcharacter_set_property;
|
|
|
834
|
|
|
835 Emchar
|
|
|
836 event_to_character (struct Lisp_Event *event,
|
|
|
837 int allow_extra_modifiers,
|
|
|
838 int allow_meta,
|
|
|
839 int allow_non_ascii)
|
|
|
840 {
|
|
|
841 Emchar c = 0;
|
|
|
842 Lisp_Object code;
|
|
|
843
|
|
|
844 if (event->event_type != key_press_event)
|
|
|
845 {
|
|
|
846 if (event->event_type == dead_event) abort ();
|
|
|
847 return -1;
|
|
|
848 }
|
|
|
849 if (!allow_extra_modifiers &&
|
|
|
850 event->event.key.modifiers & (MOD_SUPER|MOD_HYPER|MOD_ALT))
|
|
|
851 return -1;
|
|
|
852 if (CHAR_OR_CHAR_INTP (event->event.key.keysym))
|
|
|
853 c = XCHAR_OR_CHAR_INT (event->event.key.keysym);
|
|
|
854 else if (!SYMBOLP (event->event.key.keysym))
|
|
|
855 abort ();
|
|
|
856 else if (allow_non_ascii && !NILP (Vcharacter_set_property)
|
|
|
857 /* Allow window-system-specific extensibility of
|
|
|
858 keysym->code mapping */
|
|
|
859 && CHAR_OR_CHAR_INTP (code = Fget (event->event.key.keysym,
|
|
|
860 Vcharacter_set_property,
|
|
|
861 Qnil)))
|
|
|
862 c = XCHAR_OR_CHAR_INT (code);
|
|
|
863 else if (CHAR_OR_CHAR_INTP (code = Fget (event->event.key.keysym,
|
|
|
864 Qascii_character, Qnil)))
|
|
|
865 c = XCHAR_OR_CHAR_INT (code);
|
|
|
866 else
|
|
|
867 return -1;
|
|
|
868
|
|
|
869 if (event->event.key.modifiers & MOD_CONTROL)
|
|
|
870 {
|
|
|
871 if (c >= 'a' && c <= 'z')
|
|
|
872 c -= ('a' - 'A');
|
|
|
873 else
|
|
|
874 /* reject Control-Shift- keys */
|
|
|
875 if (c >= 'A' && c <= 'Z' && !allow_extra_modifiers)
|
|
|
876 return -1;
|
|
173
|
877
|
|
0
|
878 if (c >= '@' && c <= '_')
|
|
|
879 c -= '@';
|
|
|
880 else if (c == ' ') /* C-space and C-@ are the same. */
|
|
|
881 c = 0;
|
|
|
882 else
|
|
|
883 /* reject keys that can't take Control- modifiers */
|
|
|
884 if (! allow_extra_modifiers) return -1;
|
|
|
885 }
|
|
|
886
|
|
|
887 if (event->event.key.modifiers & MOD_META)
|
|
|
888 {
|
|
|
889 if (! allow_meta) return -1;
|
|
|
890 if (c & 0200) return -1; /* don't allow M-oslash (overlap) */
|
|
70
|
891 #ifdef MULE
|
|
|
892 if (c >= 256) return -1;
|
|
|
893 #endif
|
|
0
|
894 c |= 0200;
|
|
|
895 }
|
|
|
896 return c;
|
|
|
897 }
|
|
|
898
|
|
20
|
899 DEFUN ("event-to-character", Fevent_to_character, 1, 4, 0, /*
|
|
0
|
900 Return the closest ASCII approximation to the given event object.
|
|
|
901 If the event isn't a keypress, this returns nil.
|
|
|
902 If the ALLOW-EXTRA-MODIFIERS argument is non-nil, then this is lenient in
|
|
|
903 its translation; it will ignore modifier keys other than control and meta,
|
|
|
904 and will ignore the shift modifier on those characters which have no
|
|
|
905 shifted ASCII equivalent (Control-Shift-A for example, will be mapped to
|
|
|
906 the same ASCII code as Control-A).
|
|
|
907 If the ALLOW-META argument is non-nil, then the Meta modifier will be
|
|
|
908 represented by turning on the high bit of the byte returned; otherwise, nil
|
|
|
909 will be returned for events containing the Meta modifier.
|
|
|
910 If the ALLOW-NON-ASCII argument is non-nil, then characters which are
|
|
|
911 present in the prevailing character set (see the `character-set-property'
|
|
|
912 variable) will be returned as their code in that character set, instead of
|
|
|
913 the return value being restricted to ASCII.
|
|
|
914 Note that specifying both ALLOW-META and ALLOW-NON-ASCII is ambiguous, as
|
|
|
915 both use the high bit; `M-x' and `oslash' will be indistinguishable.
|
|
20
|
916 */
|
|
70
|
917 (event, allow_extra_modifiers, allow_meta, allow_non_ascii))
|
|
0
|
918 {
|
|
|
919 Emchar c;
|
|
|
920 CHECK_LIVE_EVENT (event);
|
|
|
921 c = event_to_character (XEVENT (event),
|
|
|
922 !NILP (allow_extra_modifiers),
|
|
|
923 !NILP (allow_meta),
|
|
|
924 !NILP (allow_non_ascii));
|
|
173
|
925 return c < 0 ? Qnil : make_char (c);
|
|
0
|
926 }
|
|
|
927
|
|
20
|
928 DEFUN ("character-to-event", Fcharacter_to_event, 1, 4, 0, /*
|
|
2
|
929 Converts a keystroke specifier into an event structure, replete with
|
|
0
|
930 bucky bits. The keystroke is the first argument, and the event to fill
|
|
|
931 in is the second. This function contains knowledge about what the codes
|
|
|
932 ``mean'' -- for example, the number 9 is converted to the character ``Tab'',
|
|
|
933 not the distinct character ``Control-I''.
|
|
|
934
|
|
|
935 Note that CH (the keystroke specifier) can be an integer, a character,
|
|
2
|
936 a symbol such as 'clear, or a list such as '(control backspace).
|
|
0
|
937
|
|
2
|
938 If the optional second argument is an event, it is modified;
|
|
|
939 otherwise, a new event object is created.
|
|
0
|
940
|
|
2
|
941 Optional third arg CONSOLE is the console to store in the event, and
|
|
|
942 defaults to the selected console.
|
|
0
|
943
|
|
|
944 If CH is an integer or character, the high bit may be interpreted as the
|
|
2
|
945 meta key. (This is done for backward compatibility in lots of places.)
|
|
|
946 If USE-CONSOLE-META-FLAG is nil, this will always be the case. If
|
|
|
947 USE-CONSOLE-META-FLAG is non-nil, the `meta' flag for CONSOLE affects
|
|
|
948 whether the high bit is interpreted as a meta key. (See `set-input-mode'.)
|
|
|
949 If you don't want this silly meta interpretation done, you should pass
|
|
|
950 in a list containing the character.
|
|
0
|
951
|
|
|
952 Beware that character-to-event and event-to-character are not strictly
|
|
2
|
953 inverse functions, since events contain much more information than the
|
|
|
954 ASCII character set can encode.
|
|
20
|
955 */
|
|
|
956 (ch, event, console, use_console_meta_flag))
|
|
0
|
957 {
|
|
|
958 struct console *con = decode_console (console);
|
|
|
959 if (NILP (event))
|
|
189
|
960 event = Fmake_event (Qnil, Qnil);
|
|
0
|
961 else
|
|
|
962 CHECK_LIVE_EVENT (event);
|
|
|
963 if (CONSP (ch) || SYMBOLP (ch))
|
|
|
964 key_desc_list_to_event (ch, event, 1);
|
|
|
965 else
|
|
|
966 {
|
|
|
967 CHECK_CHAR_COERCE_INT (ch);
|
|
|
968 character_to_event (XCHAR (ch), XEVENT (event), con,
|
|
|
969 !NILP (use_console_meta_flag));
|
|
|
970 }
|
|
|
971 return event;
|
|
|
972 }
|
|
|
973
|
|
|
974 void
|
|
|
975 nth_of_key_sequence_as_event (Lisp_Object seq, int n, Lisp_Object event)
|
|
|
976 {
|
|
|
977 assert (STRINGP (seq) || VECTORP (seq));
|
|
|
978 assert (n < XINT (Flength (seq)));
|
|
|
979
|
|
|
980 if (STRINGP (seq))
|
|
|
981 {
|
|
|
982 Emchar ch = string_char (XSTRING (seq), n);
|
|
|
983 Fcharacter_to_event (make_char (ch), event, Qnil, Qnil);
|
|
|
984 }
|
|
|
985 else
|
|
|
986 {
|
|
173
|
987 Lisp_Object keystroke = XVECTOR_DATA (seq)[n];
|
|
0
|
988 if (EVENTP (keystroke))
|
|
|
989 Fcopy_event (keystroke, event);
|
|
|
990 else
|
|
|
991 Fcharacter_to_event (keystroke, event, Qnil, Qnil);
|
|
|
992 }
|
|
|
993 }
|
|
|
994
|
|
|
995 Lisp_Object
|
|
|
996 key_sequence_to_event_chain (Lisp_Object seq)
|
|
|
997 {
|
|
|
998 int len = XINT (Flength (seq));
|
|
|
999 int i;
|
|
|
1000 Lisp_Object head = Qnil, tail = Qnil;
|
|
|
1001
|
|
|
1002 for (i = 0; i < len; i++)
|
|
|
1003 {
|
|
189
|
1004 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
0
|
1005 nth_of_key_sequence_as_event (seq, i, event);
|
|
|
1006 enqueue_event (event, &head, &tail);
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 return head;
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 void
|
|
|
1013 format_event_object (char *buf, struct Lisp_Event *event, int brief)
|
|
|
1014 {
|
|
|
1015 int mouse_p = 0;
|
|
|
1016 int mod = 0;
|
|
|
1017 Lisp_Object key;
|
|
|
1018
|
|
|
1019 switch (event->event_type)
|
|
|
1020 {
|
|
|
1021 case key_press_event:
|
|
|
1022 {
|
|
|
1023 mod = event->event.key.modifiers;
|
|
|
1024 key = event->event.key.keysym;
|
|
|
1025 /* Hack. */
|
|
|
1026 if (! brief && CHARP (key) &&
|
|
|
1027 mod & (MOD_CONTROL | MOD_META | MOD_SUPER | MOD_HYPER))
|
|
|
1028 {
|
|
|
1029 int k = XCHAR (key);
|
|
|
1030 if (k >= 'a' && k <= 'z')
|
|
|
1031 key = make_char (k - ('a' - 'A'));
|
|
|
1032 else if (k >= 'A' && k <= 'Z')
|
|
|
1033 mod |= MOD_SHIFT;
|
|
|
1034 }
|
|
|
1035 break;
|
|
|
1036 }
|
|
|
1037 case button_release_event:
|
|
|
1038 mouse_p++;
|
|
|
1039 /* Fall through */
|
|
|
1040 case button_press_event:
|
|
|
1041 {
|
|
|
1042 mouse_p++;
|
|
|
1043 mod = event->event.button.modifiers;
|
|
|
1044 key = make_char (event->event.button.button + '0');
|
|
|
1045 break;
|
|
|
1046 }
|
|
|
1047 case magic_event:
|
|
|
1048 {
|
|
183
|
1049 CONST char *name = NULL;
|
|
0
|
1050
|
|
|
1051 #ifdef HAVE_X_WINDOWS
|
|
183
|
1052 {
|
|
|
1053 Lisp_Object console = CDFW_CONSOLE (EVENT_CHANNEL (event));
|
|
|
1054 if (CONSOLE_X_P (XCONSOLE (console)))
|
|
|
1055 name = x_event_name (event->event.magic.underlying_x_event.type);
|
|
|
1056 }
|
|
|
1057 #endif /* HAVE_X_WINDOWS */
|
|
0
|
1058 if (name) strcpy (buf, name);
|
|
|
1059 else strcpy (buf, "???");
|
|
|
1060 return;
|
|
|
1061 }
|
|
|
1062 case magic_eval_event: strcpy (buf, "magic-eval"); return;
|
|
183
|
1063 case pointer_motion_event: strcpy (buf, "motion"); return;
|
|
|
1064 case misc_user_event: strcpy (buf, "misc-user"); return;
|
|
|
1065 case eval_event: strcpy (buf, "eval"); return;
|
|
|
1066 case process_event: strcpy (buf, "process"); return;
|
|
|
1067 case timeout_event: strcpy (buf, "timeout"); return;
|
|
|
1068 case empty_event: strcpy (buf, "empty"); return;
|
|
|
1069 case dead_event: strcpy (buf, "DEAD-EVENT"); return;
|
|
0
|
1070 default:
|
|
|
1071 abort ();
|
|
|
1072 }
|
|
|
1073 #define modprint1(x) { strcpy (buf, (x)); buf += sizeof (x)-1; }
|
|
|
1074 #define modprint(x,y) { if (brief) modprint1 (y) else modprint1 (x) }
|
|
|
1075 if (mod & MOD_CONTROL) modprint ("control-", "C-");
|
|
|
1076 if (mod & MOD_META) modprint ("meta-", "M-");
|
|
|
1077 if (mod & MOD_SUPER) modprint ("super-", "S-");
|
|
|
1078 if (mod & MOD_HYPER) modprint ("hyper-", "H-");
|
|
|
1079 if (mod & MOD_ALT) modprint ("alt-", "A-");
|
|
|
1080 if (mod & MOD_SHIFT) modprint ("shift-", "Sh-");
|
|
|
1081 if (mouse_p)
|
|
|
1082 {
|
|
|
1083 modprint1 ("button");
|
|
|
1084 --mouse_p;
|
|
|
1085 }
|
|
|
1086 #undef modprint
|
|
|
1087 #undef modprint1
|
|
|
1088
|
|
|
1089 if (CHARP (key))
|
|
|
1090 {
|
|
|
1091 buf += set_charptr_emchar ((Bufbyte *) buf, XCHAR (key));
|
|
|
1092 *buf = 0;
|
|
|
1093 }
|
|
|
1094 else if (SYMBOLP (key))
|
|
|
1095 {
|
|
|
1096 CONST char *str = 0;
|
|
|
1097 if (brief)
|
|
|
1098 {
|
|
|
1099 if (EQ (key, QKlinefeed)) str = "LFD";
|
|
|
1100 else if (EQ (key, QKtab)) str = "TAB";
|
|
|
1101 else if (EQ (key, QKreturn)) str = "RET";
|
|
|
1102 else if (EQ (key, QKescape)) str = "ESC";
|
|
|
1103 else if (EQ (key, QKdelete)) str = "DEL";
|
|
|
1104 else if (EQ (key, QKspace)) str = "SPC";
|
|
|
1105 else if (EQ (key, QKbackspace)) str = "BS";
|
|
|
1106 }
|
|
|
1107 if (str)
|
|
|
1108 {
|
|
|
1109 int i = strlen (str);
|
|
|
1110 memcpy (buf, str, i+1);
|
|
|
1111 str += i;
|
|
|
1112 }
|
|
|
1113 else
|
|
|
1114 {
|
|
183
|
1115 struct Lisp_String *name = XSYMBOL (key)->name;
|
|
|
1116 memcpy (buf, string_data (name), string_length (name) + 1);
|
|
|
1117 str += string_length (name);
|
|
0
|
1118 }
|
|
|
1119 }
|
|
|
1120 else
|
|
|
1121 abort ();
|
|
|
1122 if (mouse_p)
|
|
|
1123 strncpy (buf, "up", 4);
|
|
|
1124 }
|
|
|
1125
|
|
20
|
1126 DEFUN ("eventp", Feventp, 1, 1, 0, /*
|
|
0
|
1127 True if OBJECT is an event object.
|
|
20
|
1128 */
|
|
|
1129 (object))
|
|
0
|
1130 {
|
|
149
|
1131 return EVENTP (object) ? Qt : Qnil;
|
|
0
|
1132 }
|
|
|
1133
|
|
20
|
1134 DEFUN ("event-live-p", Fevent_live_p, 1, 1, 0, /*
|
|
0
|
1135 True if OBJECT is an event object that has not been deallocated.
|
|
20
|
1136 */
|
|
|
1137 (object))
|
|
0
|
1138 {
|
|
149
|
1139 return EVENTP (object) && XEVENT (object)->event_type != dead_event ?
|
|
|
1140 Qt : Qnil;
|
|
0
|
1141 }
|
|
|
1142
|
|
|
1143 #if 0 /* debugging functions */
|
|
|
1144
|
|
149
|
1145 xxDEFUN ("event-next", Fevent_next, 1, 1, 0, /*
|
|
0
|
1146 Return the event object's `next' event, or nil if it has none.
|
|
|
1147 The `next-event' field is changed by calling `set-next-event'.
|
|
149
|
1148 */
|
|
|
1149 (event))
|
|
0
|
1150 {
|
|
|
1151 struct Lisp_Event *e;
|
|
|
1152 CHECK_LIVE_EVENT (event);
|
|
|
1153
|
|
|
1154 return XEVENT_NEXT (event);
|
|
|
1155 }
|
|
|
1156
|
|
149
|
1157 xxDEFUN ("set-event-next", Fset_event_next, 2, 2, 0, /*
|
|
0
|
1158 Set the `next event' of EVENT to NEXT-EVENT.
|
|
|
1159 NEXT-EVENT must be an event object or nil.
|
|
149
|
1160 */
|
|
|
1161 (event, next_event))
|
|
0
|
1162 {
|
|
|
1163 Lisp_Object ev;
|
|
|
1164
|
|
|
1165 CHECK_LIVE_EVENT (event);
|
|
|
1166 if (NILP (next_event))
|
|
|
1167 {
|
|
|
1168 XSET_EVENT_NEXT (event, Qnil);
|
|
173
|
1169 return Qnil;
|
|
0
|
1170 }
|
|
|
1171
|
|
|
1172 CHECK_LIVE_EVENT (next_event);
|
|
|
1173
|
|
|
1174 EVENT_CHAIN_LOOP (ev, XEVENT_NEXT (event))
|
|
|
1175 {
|
|
|
1176 QUIT;
|
|
|
1177 if (EQ (ev, event))
|
|
173
|
1178 signal_error (Qerror,
|
|
0
|
1179 list3 (build_string ("Cyclic event-next"),
|
|
173
|
1180 event,
|
|
0
|
1181 next_event));
|
|
|
1182 }
|
|
|
1183 XSET_EVENT_NEXT (event, next_event);
|
|
149
|
1184 return next_event;
|
|
0
|
1185 }
|
|
|
1186
|
|
|
1187 #endif /* 0 */
|
|
|
1188
|
|
20
|
1189 DEFUN ("event-type", Fevent_type, 1, 1, 0, /*
|
|
0
|
1190 Return the type of EVENT.
|
|
|
1191 This will be a symbol; one of
|
|
|
1192
|
|
|
1193 key-press A key was pressed.
|
|
|
1194 button-press A mouse button was pressed.
|
|
|
1195 button-release A mouse button was released.
|
|
|
1196 misc-user Some other user action happened; typically, this is
|
|
|
1197 a menu selection or scrollbar action.
|
|
|
1198 motion The mouse moved.
|
|
|
1199 process Input is available from a subprocess.
|
|
|
1200 timeout A timeout has expired.
|
|
|
1201 eval This causes a specified action to occur when dispatched.
|
|
|
1202 magic Some window-system-specific event has occurred.
|
|
122
|
1203 empty The event has been allocated but not assigned.
|
|
|
1204
|
|
20
|
1205 */
|
|
|
1206 (event))
|
|
0
|
1207 {
|
|
|
1208 CHECK_LIVE_EVENT (event);
|
|
|
1209 switch (XEVENT (event)->event_type)
|
|
|
1210 {
|
|
149
|
1211 case key_press_event: return Qkey_press;
|
|
|
1212 case button_press_event: return Qbutton_press;
|
|
|
1213 case button_release_event: return Qbutton_release;
|
|
|
1214 case misc_user_event: return Qmisc_user;
|
|
|
1215 case pointer_motion_event: return Qmotion;
|
|
|
1216 case process_event: return Qprocess;
|
|
|
1217 case timeout_event: return Qtimeout;
|
|
|
1218 case eval_event: return Qeval;
|
|
0
|
1219 case magic_event:
|
|
|
1220 case magic_eval_event:
|
|
|
1221 return Qmagic;
|
|
|
1222
|
|
122
|
1223 case empty_event:
|
|
|
1224 return Qempty;
|
|
|
1225
|
|
0
|
1226 default:
|
|
|
1227 abort ();
|
|
|
1228 return Qnil;
|
|
|
1229 }
|
|
|
1230 }
|
|
|
1231
|
|
20
|
1232 DEFUN ("event-timestamp", Fevent_timestamp, 1, 1, 0, /*
|
|
149
|
1233 Return the timestamp of the event object EVENT.
|
|
20
|
1234 */
|
|
|
1235 (event))
|
|
0
|
1236 {
|
|
|
1237 CHECK_LIVE_EVENT (event);
|
|
|
1238 /* This junk is so that timestamps don't get to be negative, but contain
|
|
|
1239 as many bits as this particular emacs will allow.
|
|
|
1240 */
|
|
|
1241 return make_int (((1L << (VALBITS - 1)) - 1) &
|
|
|
1242 XEVENT (event)->timestamp);
|
|
|
1243 }
|
|
|
1244
|
|
185
|
1245 #define CHECK_EVENT_TYPE(e,t1,sym) do { \
|
|
|
1246 CHECK_LIVE_EVENT (e); \
|
|
0
|
1247 if (XEVENT(e)->event_type != (t1)) \
|
|
185
|
1248 e = wrong_type_argument ((sym),(e)); \
|
|
|
1249 } while (0)
|
|
0
|
1250
|
|
185
|
1251 #define CHECK_EVENT_TYPE2(e,t1,t2,sym) do { \
|
|
|
1252 CHECK_LIVE_EVENT (e); \
|
|
|
1253 if (XEVENT(e)->event_type != (t1) && \
|
|
|
1254 XEVENT(e)->event_type != (t2)) \
|
|
|
1255 e = wrong_type_argument ((sym),(e)); \
|
|
|
1256 } while (0)
|
|
0
|
1257
|
|
20
|
1258 DEFUN ("event-key", Fevent_key, 1, 1, 0, /*
|
|
149
|
1259 Return the Keysym of the key-press event EVENT.
|
|
|
1260 This will be a character if the event is associated with one, else a symbol.
|
|
20
|
1261 */
|
|
|
1262 (event))
|
|
0
|
1263 {
|
|
|
1264 CHECK_EVENT_TYPE (event, key_press_event, Qkey_press_event_p);
|
|
149
|
1265 return XEVENT (event)->event.key.keysym;
|
|
0
|
1266 }
|
|
|
1267
|
|
20
|
1268 DEFUN ("event-button", Fevent_button, 1, 1, 0, /*
|
|
149
|
1269 Return the button-number of the given button-press or button-release event.
|
|
20
|
1270 */
|
|
|
1271 (event))
|
|
0
|
1272 {
|
|
|
1273 CHECK_EVENT_TYPE2 (event, button_press_event, button_release_event,
|
|
|
1274 Qbutton_event_p);
|
|
|
1275 #ifdef HAVE_WINDOW_SYSTEM
|
|
|
1276 return make_int (XEVENT (event)->event.button.button);
|
|
|
1277 #else /* !HAVE_WINDOW_SYSTEM */
|
|
|
1278 return Qzero;
|
|
|
1279 #endif /* !HAVE_WINDOW_SYSTEM */
|
|
|
1280 }
|
|
|
1281
|
|
20
|
1282 DEFUN ("event-modifier-bits", Fevent_modifier_bits, 1, 1, 0, /*
|
|
0
|
1283 Return a number representing the modifier keys which were down
|
|
183
|
1284 when the given mouse or keyboard event was produced.
|
|
|
1285 See also the function event-modifiers.
|
|
20
|
1286 */
|
|
|
1287 (event))
|
|
0
|
1288 {
|
|
|
1289 again:
|
|
|
1290 CHECK_LIVE_EVENT (event);
|
|
183
|
1291 switch (XEVENT (event)->event_type)
|
|
0
|
1292 {
|
|
183
|
1293 case key_press_event:
|
|
|
1294 return make_int (XEVENT (event)->event.key.modifiers);
|
|
|
1295 case button_press_event:
|
|
|
1296 case button_release_event:
|
|
|
1297 return make_int (XEVENT (event)->event.button.modifiers);
|
|
|
1298 case pointer_motion_event:
|
|
|
1299 return make_int (XEVENT (event)->event.motion.modifiers);
|
|
|
1300 default:
|
|
0
|
1301 event = wrong_type_argument (intern ("key-or-mouse-event-p"), event);
|
|
|
1302 goto again;
|
|
|
1303 }
|
|
|
1304 }
|
|
|
1305
|
|
20
|
1306 DEFUN ("event-modifiers", Fevent_modifiers, 1, 1, 0, /*
|
|
0
|
1307 Return a list of symbols, the names of the modifier keys
|
|
|
1308 which were down when the given mouse or keyboard event was produced.
|
|
|
1309 See also the function event-modifier-bits.
|
|
20
|
1310 */
|
|
|
1311 (event))
|
|
0
|
1312 {
|
|
|
1313 int mod = XINT (Fevent_modifier_bits (event));
|
|
|
1314 Lisp_Object result = Qnil;
|
|
|
1315 if (mod & MOD_SHIFT) result = Fcons (Qshift, result);
|
|
|
1316 if (mod & MOD_ALT) result = Fcons (Qalt, result);
|
|
|
1317 if (mod & MOD_HYPER) result = Fcons (Qhyper, result);
|
|
|
1318 if (mod & MOD_SUPER) result = Fcons (Qsuper, result);
|
|
|
1319 if (mod & MOD_META) result = Fcons (Qmeta, result);
|
|
|
1320 if (mod & MOD_CONTROL) result = Fcons (Qcontrol, result);
|
|
|
1321 return result;
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 static int
|
|
|
1325 event_x_y_pixel_internal (Lisp_Object event, int *x, int *y, int relative)
|
|
|
1326 {
|
|
|
1327 struct window *w;
|
|
|
1328 struct frame *f;
|
|
|
1329
|
|
|
1330 if (XEVENT (event)->event_type == pointer_motion_event)
|
|
|
1331 {
|
|
|
1332 *x = XEVENT (event)->event.motion.x;
|
|
|
1333 *y = XEVENT (event)->event.motion.y;
|
|
|
1334 }
|
|
|
1335 else if (XEVENT (event)->event_type == button_press_event ||
|
|
|
1336 XEVENT (event)->event_type == button_release_event)
|
|
|
1337 {
|
|
|
1338 *x = XEVENT (event)->event.button.x;
|
|
|
1339 *y = XEVENT (event)->event.button.y;
|
|
|
1340 }
|
|
|
1341 else
|
|
|
1342 return 0;
|
|
|
1343
|
|
|
1344 f = XFRAME (EVENT_CHANNEL (XEVENT (event)));
|
|
|
1345
|
|
|
1346 if (relative)
|
|
|
1347 {
|
|
|
1348 w = find_window_by_pixel_pos (*x, *y, f->root_window);
|
|
|
1349
|
|
|
1350 if (!w)
|
|
|
1351 return 1; /* #### What should really happen here. */
|
|
|
1352
|
|
|
1353 *x -= w->pixel_left;
|
|
|
1354 *y -= w->pixel_top;
|
|
|
1355 }
|
|
|
1356 else
|
|
|
1357 {
|
|
|
1358 *y -= FRAME_REAL_TOP_TOOLBAR_HEIGHT (f);
|
|
|
1359 *x -= FRAME_REAL_LEFT_TOOLBAR_WIDTH (f);
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 return 1;
|
|
|
1363 }
|
|
|
1364
|
|
20
|
1365 DEFUN ("event-window-x-pixel", Fevent_window_x_pixel, 1, 1, 0, /*
|
|
149
|
1366 Return the X position in pixels of mouse event EVENT.
|
|
0
|
1367 The value returned is relative to the window the event occurred in.
|
|
149
|
1368 This will signal an error if the event is not a mouse event.
|
|
|
1369 See also `mouse-event-p' and `event-x-pixel'.
|
|
20
|
1370 */
|
|
|
1371 (event))
|
|
0
|
1372 {
|
|
|
1373 int x, y;
|
|
|
1374
|
|
|
1375 CHECK_LIVE_EVENT (event);
|
|
|
1376
|
|
|
1377 if (!event_x_y_pixel_internal (event, &x, &y, 1))
|
|
|
1378 return wrong_type_argument (Qmouse_event_p, event);
|
|
|
1379 else
|
|
|
1380 return make_int (x);
|
|
|
1381 }
|
|
|
1382
|
|
20
|
1383 DEFUN ("event-window-y-pixel", Fevent_window_y_pixel, 1, 1, 0, /*
|
|
149
|
1384 Return the Y position in pixels of mouse event EVENT.
|
|
0
|
1385 The value returned is relative to the window the event occurred in.
|
|
149
|
1386 This will signal an error if the event is not a mouse event.
|
|
|
1387 See also `mouse-event-p' and `event-y-pixel'.
|
|
20
|
1388 */
|
|
|
1389 (event))
|
|
0
|
1390 {
|
|
|
1391 int x, y;
|
|
|
1392
|
|
|
1393 CHECK_LIVE_EVENT (event);
|
|
|
1394
|
|
|
1395 if (!event_x_y_pixel_internal (event, &x, &y, 1))
|
|
|
1396 return wrong_type_argument (Qmouse_event_p, event);
|
|
|
1397 else
|
|
|
1398 return make_int (y);
|
|
|
1399 }
|
|
|
1400
|
|
20
|
1401 DEFUN ("event-x-pixel", Fevent_x_pixel, 1, 1, 0, /*
|
|
149
|
1402 Return the X position in pixels of mouse event EVENT.
|
|
0
|
1403 The value returned is relative to the frame the event occurred in.
|
|
149
|
1404 This will signal an error if the event is not a mouse event.
|
|
|
1405 See also `mouse-event-p' and `event-window-x-pixel'.
|
|
20
|
1406 */
|
|
|
1407 (event))
|
|
0
|
1408 {
|
|
|
1409 int x, y;
|
|
|
1410
|
|
|
1411 CHECK_LIVE_EVENT (event);
|
|
|
1412
|
|
|
1413 if (!event_x_y_pixel_internal (event, &x, &y, 0))
|
|
|
1414 return wrong_type_argument (Qmouse_event_p, event);
|
|
|
1415 else
|
|
|
1416 return make_int (x);
|
|
|
1417 }
|
|
|
1418
|
|
20
|
1419 DEFUN ("event-y-pixel", Fevent_y_pixel, 1, 1, 0, /*
|
|
149
|
1420 Return the Y position in pixels of mouse event EVENT.
|
|
0
|
1421 The value returned is relative to the frame the event occurred in.
|
|
149
|
1422 This will signal an error if the event is not a mouse event.
|
|
|
1423 See also `mouse-event-p' `event-window-y-pixel'.
|
|
20
|
1424 */
|
|
|
1425 (event))
|
|
0
|
1426 {
|
|
|
1427 int x, y;
|
|
|
1428
|
|
|
1429 CHECK_LIVE_EVENT (event);
|
|
|
1430
|
|
|
1431 if (!event_x_y_pixel_internal (event, &x, &y, 0))
|
|
|
1432 return wrong_type_argument (Qmouse_event_p, event);
|
|
|
1433 else
|
|
|
1434 return make_int (y);
|
|
|
1435 }
|
|
|
1436
|
|
|
1437 /* Given an event, return a value:
|
|
|
1438
|
|
|
1439 OVER_TOOLBAR: over one of the 4 frame toolbars
|
|
|
1440 OVER_MODELINE: over a modeline
|
|
|
1441 OVER_BORDER: over an internal border
|
|
|
1442 OVER_NOTHING: over the text area, but not over text
|
|
|
1443 OVER_OUTSIDE: outside of the frame border
|
|
|
1444 OVER_TEXT: over text in the text area
|
|
|
1445
|
|
|
1446 and return:
|
|
|
1447
|
|
|
1448 The X char position in CHAR_X, if not a null pointer.
|
|
|
1449 The Y char position in CHAR_Y, if not a null pointer.
|
|
|
1450 (These last two values are relative to the window the event is over.)
|
|
|
1451 The window it's over in W, if not a null pointer.
|
|
|
1452 The buffer position it's over in BUFP, if not a null pointer.
|
|
|
1453 The closest buffer position in CLOSEST, if not a null pointer.
|
|
|
1454
|
|
|
1455 OBJ_X, OBJ_Y, OBJ1, and OBJ2 are as in pixel_to_glyph_translation().
|
|
|
1456 */
|
|
173
|
1457
|
|
0
|
1458 static int
|
|
|
1459 event_pixel_translation (Lisp_Object event, int *char_x, int *char_y,
|
|
|
1460 int *obj_x, int *obj_y,
|
|
|
1461 struct window **w, Bufpos *bufp, Bufpos *closest,
|
|
|
1462 Charcount *modeline_closest,
|
|
|
1463 Lisp_Object *obj1, Lisp_Object *obj2)
|
|
|
1464 {
|
|
|
1465 int pix_x = 0;
|
|
|
1466 int pix_y = 0;
|
|
|
1467 int result;
|
|
173
|
1468 Lisp_Object frame = Qnil;
|
|
0
|
1469
|
|
|
1470 int ret_x, ret_y, ret_obj_x, ret_obj_y;
|
|
|
1471 struct window *ret_w;
|
|
|
1472 Bufpos ret_bufp, ret_closest;
|
|
|
1473 Charcount ret_modeline_closest;
|
|
|
1474 Lisp_Object ret_obj1, ret_obj2;
|
|
173
|
1475
|
|
0
|
1476 CHECK_LIVE_EVENT (event);
|
|
173
|
1477 frame = XEVENT (event)->channel;
|
|
|
1478 switch (XEVENT (event)->event_type)
|
|
0
|
1479 {
|
|
173
|
1480 case pointer_motion_event :
|
|
0
|
1481 pix_x = XEVENT (event)->event.motion.x;
|
|
|
1482 pix_y = XEVENT (event)->event.motion.y;
|
|
173
|
1483 break;
|
|
|
1484 case button_press_event :
|
|
|
1485 case button_release_event :
|
|
0
|
1486 pix_x = XEVENT (event)->event.button.x;
|
|
|
1487 pix_y = XEVENT (event)->event.button.y;
|
|
173
|
1488 break;
|
|
|
1489 default:
|
|
|
1490 dead_wrong_type_argument (Qmouse_event_p, event);
|
|
0
|
1491 }
|
|
|
1492
|
|
|
1493 result = pixel_to_glyph_translation (XFRAME (frame), pix_x, pix_y,
|
|
|
1494 &ret_x, &ret_y, &ret_obj_x, &ret_obj_y,
|
|
|
1495 &ret_w, &ret_bufp, &ret_closest,
|
|
|
1496 &ret_modeline_closest,
|
|
|
1497 &ret_obj1, &ret_obj2);
|
|
|
1498
|
|
|
1499 if (result == OVER_NOTHING || result == OVER_OUTSIDE)
|
|
|
1500 ret_bufp = 0;
|
|
|
1501 else if (ret_w && NILP (ret_w->buffer))
|
|
|
1502 /* Why does this happen? (Does it still happen?)
|
|
|
1503 I guess the window has gotten reused as a non-leaf... */
|
|
|
1504 ret_w = 0;
|
|
|
1505
|
|
|
1506 /* #### pixel_to_glyph_translation() sometimes returns garbage...
|
|
185
|
1507 The word has type Lisp_Type_Record (presumably meaning `extent') but the
|
|
0
|
1508 pointer points to random memory, often filled with 0, sometimes not.
|
|
|
1509 */
|
|
|
1510 /* #### Chuck, do we still need this crap? */
|
|
|
1511 if (!NILP (ret_obj1) && !(GLYPHP (ret_obj1)
|
|
|
1512 #ifdef HAVE_TOOLBARS
|
|
|
1513 || TOOLBAR_BUTTONP (ret_obj1)
|
|
|
1514 #endif
|
|
|
1515 ))
|
|
|
1516 abort ();
|
|
173
|
1517 if (!NILP (ret_obj2) && !(EXTENTP (ret_obj2) || CONSP (ret_obj2)))
|
|
0
|
1518 abort ();
|
|
|
1519
|
|
|
1520 if (char_x)
|
|
|
1521 *char_x = ret_x;
|
|
|
1522 if (char_y)
|
|
|
1523 *char_y = ret_y;
|
|
|
1524 if (obj_x)
|
|
|
1525 *obj_x = ret_obj_x;
|
|
|
1526 if (obj_y)
|
|
|
1527 *obj_y = ret_obj_y;
|
|
|
1528 if (w)
|
|
|
1529 *w = ret_w;
|
|
|
1530 if (bufp)
|
|
|
1531 *bufp = ret_bufp;
|
|
|
1532 if (closest)
|
|
|
1533 *closest = ret_closest;
|
|
|
1534 if (modeline_closest)
|
|
|
1535 *modeline_closest = ret_modeline_closest;
|
|
|
1536 if (obj1)
|
|
|
1537 *obj1 = ret_obj1;
|
|
|
1538 if (obj2)
|
|
|
1539 *obj2 = ret_obj2;
|
|
|
1540
|
|
|
1541 return result;
|
|
|
1542 }
|
|
|
1543
|
|
20
|
1544 DEFUN ("event-over-text-area-p", Fevent_over_text_area_p, 1, 1, 0, /*
|
|
149
|
1545 Return t if the mouse event EVENT occurred over the text area of a window.
|
|
0
|
1546 The modeline is not considered to be part of the text area.
|
|
20
|
1547 */
|
|
|
1548 (event))
|
|
0
|
1549 {
|
|
|
1550 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1551
|
|
149
|
1552 return result == OVER_TEXT || result == OVER_NOTHING ? Qt : Qnil;
|
|
0
|
1553 }
|
|
|
1554
|
|
20
|
1555 DEFUN ("event-over-modeline-p", Fevent_over_modeline_p, 1, 1, 0, /*
|
|
149
|
1556 Return t if the mouse event EVENT occurred over the modeline of a window.
|
|
20
|
1557 */
|
|
|
1558 (event))
|
|
0
|
1559 {
|
|
|
1560 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1561
|
|
149
|
1562 return result == OVER_MODELINE ? Qt : Qnil;
|
|
0
|
1563 }
|
|
|
1564
|
|
20
|
1565 DEFUN ("event-over-border-p", Fevent_over_border_p, 1, 1, 0, /*
|
|
149
|
1566 Return t if the mouse event EVENT occurred over an internal border.
|
|
20
|
1567 */
|
|
|
1568 (event))
|
|
0
|
1569 {
|
|
|
1570 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1571
|
|
149
|
1572 return result == OVER_BORDER ? Qt : Qnil;
|
|
0
|
1573 }
|
|
|
1574
|
|
20
|
1575 DEFUN ("event-over-toolbar-p", Fevent_over_toolbar_p, 1, 1, 0, /*
|
|
149
|
1576 Return t if the mouse event EVENT occurred over a toolbar.
|
|
20
|
1577 */
|
|
|
1578 (event))
|
|
0
|
1579 {
|
|
|
1580 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1581
|
|
149
|
1582 return result == OVER_TOOLBAR ? Qt : Qnil;
|
|
0
|
1583 }
|
|
|
1584
|
|
|
1585 struct console *
|
|
|
1586 event_console_or_selected (Lisp_Object event)
|
|
|
1587 {
|
|
|
1588 Lisp_Object channel = EVENT_CHANNEL (XEVENT (event));
|
|
|
1589 Lisp_Object console = CDFW_CONSOLE (channel);
|
|
|
1590
|
|
|
1591 if (NILP (console))
|
|
|
1592 console = Vselected_console;
|
|
|
1593
|
|
|
1594 return XCONSOLE (console);
|
|
|
1595 }
|
|
|
1596
|
|
20
|
1597 DEFUN ("event-channel", Fevent_channel, 1, 1, 0, /*
|
|
149
|
1598 Return the channel that the event EVENT occurred on.
|
|
0
|
1599 This will be a frame, device, console, or nil for some types
|
|
|
1600 of events (e.g. eval events).
|
|
20
|
1601 */
|
|
|
1602 (event))
|
|
0
|
1603 {
|
|
|
1604 CHECK_LIVE_EVENT (event);
|
|
|
1605 return EVENT_CHANNEL (XEVENT (event));
|
|
|
1606 }
|
|
|
1607
|
|
20
|
1608 DEFUN ("event-window", Fevent_window, 1, 1, 0, /*
|
|
149
|
1609 Return the window over which mouse event EVENT occurred.
|
|
0
|
1610 This may be nil if the event occurred in the border or over a toolbar.
|
|
149
|
1611 The modeline is considered to be within the window it describes.
|
|
20
|
1612 */
|
|
|
1613 (event))
|
|
0
|
1614 {
|
|
|
1615 struct window *w;
|
|
|
1616
|
|
|
1617 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, 0);
|
|
|
1618
|
|
|
1619 if (!w)
|
|
|
1620 return Qnil;
|
|
|
1621 else
|
|
|
1622 {
|
|
149
|
1623 Lisp_Object window;
|
|
|
1624
|
|
0
|
1625 XSETWINDOW (window, w);
|
|
|
1626 return window;
|
|
|
1627 }
|
|
|
1628 }
|
|
|
1629
|
|
20
|
1630 DEFUN ("event-point", Fevent_point, 1, 1, 0, /*
|
|
149
|
1631 Return the character position of the mouse event EVENT.
|
|
0
|
1632 If the event did not occur over a window, or did not occur over text,
|
|
149
|
1633 then this returns nil. Otherwise, it returns a position in the buffer
|
|
0
|
1634 visible in the event's window.
|
|
20
|
1635 */
|
|
|
1636 (event))
|
|
0
|
1637 {
|
|
|
1638 Bufpos bufp;
|
|
|
1639 struct window *w;
|
|
|
1640
|
|
|
1641 event_pixel_translation (event, 0, 0, 0, 0, &w, &bufp, 0, 0, 0, 0);
|
|
|
1642
|
|
149
|
1643 return w && bufp ? make_int (bufp) : Qnil;
|
|
0
|
1644 }
|
|
|
1645
|
|
20
|
1646 DEFUN ("event-closest-point", Fevent_closest_point, 1, 1, 0, /*
|
|
149
|
1647 Return the character position closest to the mouse event EVENT.
|
|
0
|
1648 If the event did not occur over a window or over text, return the
|
|
|
1649 closest point to the location of the event. If the Y pixel position
|
|
|
1650 overlaps a window and the X pixel position is to the left of that
|
|
|
1651 window, the closest point is the beginning of the line containing the
|
|
|
1652 Y position. If the Y pixel position overlaps a window and the X pixel
|
|
|
1653 position is to the right of that window, the closest point is the end
|
|
|
1654 of the line containing the Y position. If the Y pixel position is
|
|
149
|
1655 above a window, return 0. If it is below the last character in a window,
|
|
|
1656 return the value of (window-end).
|
|
20
|
1657 */
|
|
|
1658 (event))
|
|
0
|
1659 {
|
|
|
1660 Bufpos bufp;
|
|
|
1661
|
|
|
1662 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, &bufp, 0, 0, 0);
|
|
|
1663
|
|
149
|
1664 return bufp ? make_int (bufp) : Qnil;
|
|
0
|
1665 }
|
|
|
1666
|
|
20
|
1667 DEFUN ("event-x", Fevent_x, 1, 1, 0, /*
|
|
149
|
1668 Return the X position of the mouse event EVENT in characters.
|
|
0
|
1669 This is relative to the window the event occurred over.
|
|
20
|
1670 */
|
|
|
1671 (event))
|
|
0
|
1672 {
|
|
|
1673 int char_x;
|
|
|
1674
|
|
|
1675 event_pixel_translation (event, &char_x, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1676
|
|
|
1677 return make_int (char_x);
|
|
|
1678 }
|
|
|
1679
|
|
20
|
1680 DEFUN ("event-y", Fevent_y, 1, 1, 0, /*
|
|
149
|
1681 Return the Y position of the mouse event EVENT in characters.
|
|
0
|
1682 This is relative to the window the event occurred over.
|
|
20
|
1683 */
|
|
|
1684 (event))
|
|
0
|
1685 {
|
|
|
1686 int char_y;
|
|
|
1687
|
|
|
1688 event_pixel_translation (event, 0, &char_y, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
1689
|
|
|
1690 return make_int (char_y);
|
|
|
1691 }
|
|
|
1692
|
|
20
|
1693 DEFUN ("event-modeline-position", Fevent_modeline_position, 1, 1, 0, /*
|
|
0
|
1694 Return the character position in the modeline that EVENT occurred over.
|
|
|
1695 EVENT should be a mouse event. If EVENT did not occur over a modeline,
|
|
|
1696 nil is returned. You can determine the actual character that the
|
|
|
1697 event occurred over by looking in `generated-modeline-string' at the
|
|
|
1698 returned character position. Note that `generated-modeline-string'
|
|
|
1699 is buffer-local, and you must use EVENT's buffer when retrieving
|
|
|
1700 `generated-modeline-string' in order to get accurate results.
|
|
20
|
1701 */
|
|
|
1702 (event))
|
|
0
|
1703 {
|
|
|
1704 Charcount mbufp;
|
|
|
1705
|
|
|
1706 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, &mbufp, 0, 0);
|
|
|
1707
|
|
149
|
1708 return mbufp < 0 ? Qnil : make_int (mbufp);
|
|
0
|
1709 }
|
|
|
1710
|
|
20
|
1711 DEFUN ("event-glyph", Fevent_glyph, 1, 1, 0, /*
|
|
149
|
1712 Return the glyph that the mouse event EVENT occurred over, or nil.
|
|
20
|
1713 */
|
|
|
1714 (event))
|
|
0
|
1715 {
|
|
|
1716 Lisp_Object glyph;
|
|
|
1717 struct window *w;
|
|
|
1718
|
|
|
1719 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, &glyph, 0);
|
|
|
1720
|
|
149
|
1721 return w && GLYPHP (glyph) ? glyph : Qnil;
|
|
0
|
1722 }
|
|
|
1723
|
|
20
|
1724 DEFUN ("event-glyph-extent", Fevent_glyph_extent, 1, 1, 0, /*
|
|
149
|
1725 Return the extent of the glyph that the mouse event EVENT occurred over.
|
|
0
|
1726 If the event did not occur over a glyph, nil is returned.
|
|
20
|
1727 */
|
|
|
1728 (event))
|
|
0
|
1729 {
|
|
|
1730 Lisp_Object extent;
|
|
|
1731 struct window *w;
|
|
|
1732
|
|
|
1733 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, &extent);
|
|
|
1734
|
|
149
|
1735 return w && EXTENTP (extent) ? extent : Qnil;
|
|
0
|
1736 }
|
|
|
1737
|
|
20
|
1738 DEFUN ("event-glyph-x-pixel", Fevent_glyph_x_pixel, 1, 1, 0, /*
|
|
0
|
1739 Return the X pixel position of EVENT relative to the glyph it occurred over.
|
|
|
1740 EVENT should be a mouse event. If the event did not occur over a glyph,
|
|
|
1741 nil is returned.
|
|
20
|
1742 */
|
|
|
1743 (event))
|
|
0
|
1744 {
|
|
|
1745 Lisp_Object extent;
|
|
|
1746 struct window *w;
|
|
|
1747 int obj_x;
|
|
|
1748
|
|
|
1749 event_pixel_translation (event, 0, 0, &obj_x, 0, &w, 0, 0, 0, 0, &extent);
|
|
|
1750
|
|
149
|
1751 return w && EXTENTP (extent) ? make_int (obj_x) : Qnil;
|
|
0
|
1752 }
|
|
|
1753
|
|
20
|
1754 DEFUN ("event-glyph-y-pixel", Fevent_glyph_y_pixel, 1, 1, 0, /*
|
|
0
|
1755 Return the Y pixel position of EVENT relative to the glyph it occurred over.
|
|
|
1756 EVENT should be a mouse event. If the event did not occur over a glyph,
|
|
|
1757 nil is returned.
|
|
20
|
1758 */
|
|
|
1759 (event))
|
|
0
|
1760 {
|
|
|
1761 Lisp_Object extent;
|
|
|
1762 struct window *w;
|
|
|
1763 int obj_y;
|
|
|
1764
|
|
|
1765 event_pixel_translation (event, 0, 0, 0, &obj_y, &w, 0, 0, 0, 0, &extent);
|
|
|
1766
|
|
149
|
1767 return w && EXTENTP (extent) ? make_int (obj_y) : Qnil;
|
|
0
|
1768 }
|
|
|
1769
|
|
20
|
1770 DEFUN ("event-toolbar-button", Fevent_toolbar_button, 1, 1, 0, /*
|
|
149
|
1771 Return the toolbar button that the mouse event EVENT occurred over.
|
|
|
1772 If the event did not occur over a toolbar button, nil is returned.
|
|
20
|
1773 */
|
|
|
1774 (event))
|
|
0
|
1775 {
|
|
|
1776 #ifdef HAVE_TOOLBARS
|
|
|
1777 Lisp_Object button;
|
|
|
1778
|
|
149
|
1779 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, &button, 0);
|
|
0
|
1780
|
|
149
|
1781 return result == OVER_TOOLBAR && TOOLBAR_BUTTONP (button) ? button : Qnil;
|
|
|
1782 #else
|
|
0
|
1783 return Qnil;
|
|
|
1784 #endif
|
|
|
1785 }
|
|
|
1786
|
|
20
|
1787 DEFUN ("event-process", Fevent_process, 1, 1, 0, /*
|
|
0
|
1788 Return the process of the given process-output event.
|
|
20
|
1789 */
|
|
|
1790 (event))
|
|
0
|
1791 {
|
|
|
1792 CHECK_EVENT_TYPE (event, process_event, Qprocess_event_p);
|
|
149
|
1793 return XEVENT (event)->event.process.process;
|
|
0
|
1794 }
|
|
|
1795
|
|
20
|
1796 DEFUN ("event-function", Fevent_function, 1, 1, 0, /*
|
|
0
|
1797 Return the callback function of EVENT.
|
|
|
1798 EVENT should be a timeout, misc-user, or eval event.
|
|
20
|
1799 */
|
|
|
1800 (event))
|
|
0
|
1801 {
|
|
|
1802 CHECK_LIVE_EVENT (event);
|
|
|
1803 switch (XEVENT (event)->event_type)
|
|
|
1804 {
|
|
|
1805 case timeout_event:
|
|
173
|
1806 return XEVENT (event)->event.timeout.function;
|
|
0
|
1807 case misc_user_event:
|
|
|
1808 case eval_event:
|
|
173
|
1809 return XEVENT (event)->event.eval.function;
|
|
0
|
1810 default:
|
|
|
1811 return wrong_type_argument (intern ("timeout-or-eval-event-p"), event);
|
|
|
1812 }
|
|
|
1813 }
|
|
|
1814
|
|
20
|
1815 DEFUN ("event-object", Fevent_object, 1, 1, 0, /*
|
|
0
|
1816 Return the callback function argument of EVENT.
|
|
|
1817 EVENT should be a timeout, misc-user, or eval event.
|
|
20
|
1818 */
|
|
|
1819 (event))
|
|
0
|
1820 {
|
|
|
1821 again:
|
|
|
1822 CHECK_LIVE_EVENT (event);
|
|
|
1823 switch (XEVENT (event)->event_type)
|
|
|
1824 {
|
|
|
1825 case timeout_event:
|
|
173
|
1826 return XEVENT (event)->event.timeout.object;
|
|
0
|
1827 case misc_user_event:
|
|
|
1828 case eval_event:
|
|
173
|
1829 return XEVENT (event)->event.eval.object;
|
|
0
|
1830 default:
|
|
|
1831 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event);
|
|
|
1832 goto again;
|
|
|
1833 }
|
|
|
1834 }
|
|
|
1835
|
|
20
|
1836 DEFUN ("event-properties", Fevent_properties, 1, 1, 0, /*
|
|
0
|
1837 Return a list of all of the properties of EVENT.
|
|
|
1838 This is in the form of a property list (alternating keyword/value pairs).
|
|
20
|
1839 */
|
|
|
1840 (event))
|
|
0
|
1841 {
|
|
|
1842 Lisp_Object props = Qnil;
|
|
|
1843 struct Lisp_Event *e;
|
|
|
1844 struct gcpro gcpro1;
|
|
|
1845
|
|
|
1846 CHECK_LIVE_EVENT (event);
|
|
|
1847 e = XEVENT (event);
|
|
|
1848 GCPRO1 (props);
|
|
|
1849
|
|
|
1850 props = Fcons (Qtimestamp, Fcons (Fevent_timestamp (event), props));
|
|
|
1851
|
|
|
1852 switch (e->event_type)
|
|
|
1853 {
|
|
|
1854 case process_event:
|
|
|
1855 props = Fcons (Qprocess, Fcons (e->event.process.process, props));
|
|
|
1856 break;
|
|
173
|
1857
|
|
0
|
1858 case timeout_event:
|
|
|
1859 props = Fcons (Qobject, Fcons (Fevent_object (event), props));
|
|
|
1860 props = Fcons (Qfunction, Fcons (Fevent_function (event), props));
|
|
|
1861 props = Fcons (Qid, Fcons (make_int (e->event.timeout.id_number),
|
|
|
1862 props));
|
|
|
1863 break;
|
|
|
1864
|
|
|
1865 case key_press_event:
|
|
|
1866 props = Fcons (Qmodifiers, Fcons (Fevent_modifiers (event), props));
|
|
|
1867 props = Fcons (Qkey, Fcons (Fevent_key (event), props));
|
|
|
1868 break;
|
|
|
1869
|
|
|
1870 case button_press_event:
|
|
|
1871 case button_release_event:
|
|
|
1872 props = Fcons (Qy, Fcons (Fevent_y_pixel (event), props));
|
|
|
1873 props = Fcons (Qx, Fcons (Fevent_x_pixel (event), props));
|
|
|
1874 props = Fcons (Qmodifiers, Fcons (Fevent_modifiers (event), props));
|
|
|
1875 props = Fcons (Qbutton, Fcons (Fevent_button (event), props));
|
|
|
1876 break;
|
|
|
1877
|
|
|
1878 case pointer_motion_event:
|
|
|
1879 props = Fcons (Qmodifiers, Fcons (Fevent_modifiers (event), props));
|
|
|
1880 props = Fcons (Qy, Fcons (Fevent_y_pixel (event), props));
|
|
|
1881 props = Fcons (Qx, Fcons (Fevent_x_pixel (event), props));
|
|
|
1882 break;
|
|
|
1883
|
|
|
1884 case misc_user_event:
|
|
|
1885 case eval_event:
|
|
|
1886 props = Fcons (Qobject, Fcons (Fevent_object (event), props));
|
|
|
1887 props = Fcons (Qfunction, Fcons (Fevent_function (event), props));
|
|
|
1888 break;
|
|
|
1889
|
|
|
1890 case magic_eval_event:
|
|
|
1891 case magic_event:
|
|
149
|
1892 break;
|
|
|
1893
|
|
122
|
1894 case empty_event:
|
|
149
|
1895 RETURN_UNGCPRO (Qnil);
|
|
0
|
1896 break;
|
|
|
1897
|
|
|
1898 default:
|
|
|
1899 abort ();
|
|
|
1900 break; /* not reached; warning suppression */
|
|
|
1901 }
|
|
|
1902
|
|
|
1903 props = Fcons (Qchannel, Fcons (Fevent_channel (event), props));
|
|
|
1904 UNGCPRO;
|
|
|
1905
|
|
|
1906 return props;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909
|
|
|
1910 /************************************************************************/
|
|
|
1911 /* initialization */
|
|
|
1912 /************************************************************************/
|
|
|
1913
|
|
|
1914 void
|
|
|
1915 syms_of_events (void)
|
|
|
1916 {
|
|
20
|
1917 DEFSUBR (Fcharacter_to_event);
|
|
|
1918 DEFSUBR (Fevent_to_character);
|
|
0
|
1919
|
|
20
|
1920 DEFSUBR (Fmake_event);
|
|
|
1921 DEFSUBR (Fdeallocate_event);
|
|
|
1922 DEFSUBR (Fcopy_event);
|
|
|
1923 DEFSUBR (Feventp);
|
|
|
1924 DEFSUBR (Fevent_live_p);
|
|
|
1925 DEFSUBR (Fevent_type);
|
|
|
1926 DEFSUBR (Fevent_properties);
|
|
0
|
1927
|
|
20
|
1928 DEFSUBR (Fevent_timestamp);
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1929 DEFSUBR (Fevent_key);
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1930 DEFSUBR (Fevent_button);
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1931 DEFSUBR (Fevent_modifier_bits);
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1932 DEFSUBR (Fevent_modifiers);
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1933 DEFSUBR (Fevent_x_pixel);
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1934 DEFSUBR (Fevent_y_pixel);
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1935 DEFSUBR (Fevent_window_x_pixel);
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1936 DEFSUBR (Fevent_window_y_pixel);
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1937 DEFSUBR (Fevent_over_text_area_p);
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1938 DEFSUBR (Fevent_over_modeline_p);
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1939 DEFSUBR (Fevent_over_border_p);
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1940 DEFSUBR (Fevent_over_toolbar_p);
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1941 DEFSUBR (Fevent_channel);
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1942 DEFSUBR (Fevent_window);
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1943 DEFSUBR (Fevent_point);
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1944 DEFSUBR (Fevent_closest_point);
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1945 DEFSUBR (Fevent_x);
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1946 DEFSUBR (Fevent_y);
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1947 DEFSUBR (Fevent_modeline_position);
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1948 DEFSUBR (Fevent_glyph);
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1949 DEFSUBR (Fevent_glyph_extent);
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1950 DEFSUBR (Fevent_glyph_x_pixel);
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1951 DEFSUBR (Fevent_glyph_y_pixel);
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1952 DEFSUBR (Fevent_toolbar_button);
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1953 DEFSUBR (Fevent_process);
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1954 DEFSUBR (Fevent_function);
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1955 DEFSUBR (Fevent_object);
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0
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1956
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1957 defsymbol (&Qeventp, "eventp");
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1958 defsymbol (&Qevent_live_p, "event-live-p");
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1959 defsymbol (&Qkey_press_event_p, "key-press-event-p");
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1960 defsymbol (&Qbutton_event_p, "button-event-p");
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1961 defsymbol (&Qmouse_event_p, "mouse-event-p");
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1962 defsymbol (&Qprocess_event_p, "process-event-p");
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1963 defsymbol (&Qkey_press, "key-press");
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1964 defsymbol (&Qbutton_press, "button-press");
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1965 defsymbol (&Qbutton_release, "button-release");
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1966 defsymbol (&Qmisc_user, "misc-user");
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1967 defsymbol (&Qascii_character, "ascii-character");
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1968 }
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1969
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1970 void
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1971 vars_of_events (void)
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1972 {
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1973 DEFVAR_LISP ("character-set-property", &Vcharacter_set_property /*
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1974 A symbol used to look up the 8-bit character of a keysym.
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1975 To convert a keysym symbol to an 8-bit code, as when that key is
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1976 bound to self-insert-command, we will look up the property that this
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1977 variable names on the property list of the keysym-symbol. The window-
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1978 system-specific code will set up appropriate properties and set this
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1979 variable.
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1980 */ );
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1981 Vcharacter_set_property = Qnil;
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1982
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1983 Vevent_resource = Qnil;
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1984
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1985 QKbackspace = KEYSYM ("backspace");
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1986 QKtab = KEYSYM ("tab");
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1987 QKlinefeed = KEYSYM ("linefeed");
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1988 QKreturn = KEYSYM ("return");
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1989 QKescape = KEYSYM ("escape");
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1990 QKspace = KEYSYM ("space");
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1991 QKdelete = KEYSYM ("delete");
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1992
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1993 staticpro (&QKbackspace);
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1994 staticpro (&QKtab);
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1995 staticpro (&QKlinefeed);
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1996 staticpro (&QKreturn);
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1997 staticpro (&QKescape);
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1998 staticpro (&QKspace);
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1999 staticpro (&QKdelete);
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2000 }
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