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428
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1 /* The portable interface to event streams.
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2 Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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3 Copyright (C) 1995 Board of Trustees, University of Illinois.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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5 Copyright (C) 1995, 1996 Ben Wing.
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* Synched up with: Not in FSF. */
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25
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26 /* This file has been Mule-ized. */
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27
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28 /*
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29 * DANGER!!
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30 *
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31 * If you ever change ANYTHING in this file, you MUST run the
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32 * testcases at the end to make sure that you haven't changed
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33 * the semantics of recent-keys, last-input-char, or keyboard
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34 * macros. You'd be surprised how easy it is to break this.
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35 *
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36 */
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37
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38 /* TODO:
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39 This stuff is way too hard to maintain - needs rework.
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40
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41 (global-set-key "\C-p" global-map) causes a crash - need recursion check.
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42
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43 C-x @ h <scrollbar-drag> x causes a crash.
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44
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45 The command builder should deal only with key and button events.
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46 Other command events should be able to come in the MIDDLE of a key
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47 sequence, without disturbing the key sequence composition, or the
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48 command builder structure representing it.
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49
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50 Someone should rethink universal-argument and figure out how an
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51 arbitrary command can influence the next command (universal-argument
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52 or universal-coding-system-argument) or the next key (hyperify).
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53
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54 Both C-h and Help in the middle of a key sequence should trigger
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55 prefix-help-command. help-char is stupid. Maybe we need
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56 keymap-of-last-resort?
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57
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58 After prefix-help is run, one should be able to CONTINUE TYPING,
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59 instead of RETYPING, the key sequence.
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60 */
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61
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62 #include <config.h>
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63 #include "lisp.h"
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64
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65 #ifdef HAVE_X_WINDOWS
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66 #include "console-x.h" /* for menu accelerators ... */
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67 #include "gui-x.h"
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68 #include "../lwlib/lwlib.h"
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69 #else
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70 #define lw_menu_active 0
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71 #endif
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72
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73 #include "blocktype.h"
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74 #include "buffer.h"
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75 #include "commands.h"
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76 #include "device.h"
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77 #include "elhash.h"
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78 #include "events.h"
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79 #include "frame.h"
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80 #include "insdel.h" /* for buffer_reset_changes */
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81 #include "keymap.h"
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82 #include "lstream.h"
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83 #include "macros.h" /* for defining_keyboard_macro */
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84 #include "process.h"
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85 #include "window.h"
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86
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87 #include "sysdep.h" /* init_poll_for_quit() */
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88 #include "syssignal.h" /* SIGCHLD, etc. */
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89 #include "sysfile.h"
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90 #include "systime.h" /* to set Vlast_input_time */
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91
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92 #include "events-mod.h"
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93 #ifdef FILE_CODING
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94 #include "file-coding.h"
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95 #endif
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96
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97 #include <errno.h>
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98
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99 /* The number of keystrokes between auto-saves. */
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100 static int auto_save_interval;
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101
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102 Lisp_Object Qundefined_keystroke_sequence;
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103
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104 Lisp_Object Qcommand_event_p;
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105
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106 /* Hooks to run before and after each command. */
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107 Lisp_Object Vpre_command_hook, Vpost_command_hook;
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108 Lisp_Object Qpre_command_hook, Qpost_command_hook;
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109
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110 /* Hook run when XEmacs is about to be idle. */
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111 Lisp_Object Qpre_idle_hook, Vpre_idle_hook;
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112
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113 /* Control gratuitous keyboard focus throwing. */
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114 int focus_follows_mouse;
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115
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116 #ifdef ILL_CONCEIVED_HOOK
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117 /* Hook run after a command if there's no more input soon. */
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118 Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook;
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119
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120 /* Delay time in microseconds before running post-command-idle-hook. */
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121 int post_command_idle_delay;
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122 #endif /* ILL_CONCEIVED_HOOK */
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123
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124 #ifdef DEFERRED_ACTION_CRAP
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125 /* List of deferred actions to be performed at a later time.
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126 The precise format isn't relevant here; we just check whether it is nil. */
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127 Lisp_Object Vdeferred_action_list;
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128
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129 /* Function to call to handle deferred actions, when there are any. */
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130 Lisp_Object Vdeferred_action_function;
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131 Lisp_Object Qdeferred_action_function;
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132 #endif /* DEFERRED_ACTION_CRAP */
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133
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134 /* Non-nil disable property on a command means
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135 do not execute it; call disabled-command-hook's value instead. */
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136 Lisp_Object Qdisabled, Vdisabled_command_hook;
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137
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138 EXFUN (Fnext_command_event, 2);
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139
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140 static void pre_command_hook (void);
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141 static void post_command_hook (void);
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142
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143 /* Last keyboard or mouse input event read as a command. */
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144 Lisp_Object Vlast_command_event;
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145
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146 /* The nearest ASCII equivalent of the above. */
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147 Lisp_Object Vlast_command_char;
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148
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149 /* Last keyboard or mouse event read for any purpose. */
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150 Lisp_Object Vlast_input_event;
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151
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152 /* The nearest ASCII equivalent of the above. */
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153 Lisp_Object Vlast_input_char;
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154
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155 Lisp_Object Vcurrent_mouse_event;
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156
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157 /* This is fbound in cmdloop.el, see the commentary there */
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158 Lisp_Object Qcancel_mode_internal;
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159
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160 /* If not Qnil, event objects to be read as the next command input */
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161 Lisp_Object Vunread_command_events;
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162 Lisp_Object Vunread_command_event; /* obsoleteness support */
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163
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164 static Lisp_Object Qunread_command_events, Qunread_command_event;
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165
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166 /* Previous command, represented by a Lisp object.
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167 Does not include prefix commands and arg setting commands */
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168 Lisp_Object Vlast_command;
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169
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170 /* If a command sets this, the value goes into
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171 previous-command for the next command. */
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172 Lisp_Object Vthis_command;
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173
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174 /* The value of point when the last command was executed. */
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175 Bufpos last_point_position;
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176
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177 /* The frame that was current when the last command was started. */
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178 Lisp_Object Vlast_selected_frame;
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179
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180 /* The buffer that was current when the last command was started. */
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181 Lisp_Object last_point_position_buffer;
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182
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183 /* A (16bit . 16bit) representation of the time of the last-command-event. */
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184 Lisp_Object Vlast_input_time;
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185
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186 /* A (16bit 16bit usec) representation of the time
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187 of the last-command-event. */
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188 Lisp_Object Vlast_command_event_time;
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189
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190 /* Character to recognize as the help char. */
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191 Lisp_Object Vhelp_char;
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192
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193 /* Form to execute when help char is typed. */
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194 Lisp_Object Vhelp_form;
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195
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196 /* Command to run when the help character follows a prefix key. */
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197 Lisp_Object Vprefix_help_command;
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198
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199 /* Flag to tell QUIT that some interesting occurrence (e.g. a keypress)
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200 may have happened. */
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201 volatile int something_happened;
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202
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203 /* Hash table to translate keysyms through */
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204 Lisp_Object Vkeyboard_translate_table;
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205
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206 /* If control-meta-super-shift-X is undefined, try control-meta-super-x */
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207 Lisp_Object Vretry_undefined_key_binding_unshifted;
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208 Lisp_Object Qretry_undefined_key_binding_unshifted;
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209
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210 #ifdef HAVE_XIM
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211 /* If composed input is undefined, use self-insert-char */
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212 Lisp_Object Vcomposed_character_default_binding;
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213 #endif /* HAVE_XIM */
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214
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215 /* Console that corresponds to our controlling terminal */
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216 Lisp_Object Vcontrolling_terminal;
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217
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218 /* An event (actually an event chain linked through event_next) or Qnil.
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219 */
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220 Lisp_Object Vthis_command_keys;
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221 Lisp_Object Vthis_command_keys_tail;
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222
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223 /* #### kludge! */
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224 Lisp_Object Qauto_show_make_point_visible;
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225
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226 /* File in which we write all commands we read; an lstream */
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227 static Lisp_Object Vdribble_file;
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228
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229 /* Recent keys ring location; a vector of events or nil-s */
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230 Lisp_Object Vrecent_keys_ring;
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231 int recent_keys_ring_size;
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232 int recent_keys_ring_index;
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233
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234 /* Boolean specifying whether keystrokes should be added to
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235 recent-keys. */
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236 int inhibit_input_event_recording;
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237
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238 /* prefix key(s) that must match in order to activate menu.
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239 This is ugly. fix me.
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240 */
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241 Lisp_Object Vmenu_accelerator_prefix;
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242
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243 /* list of modifier keys to match accelerator for top level menus */
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244 Lisp_Object Vmenu_accelerator_modifiers;
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245
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246 /* whether menu accelerators are enabled */
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247 Lisp_Object Vmenu_accelerator_enabled;
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248
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249 /* keymap for auxiliary menu accelerator functions */
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250 Lisp_Object Vmenu_accelerator_map;
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251
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252 Lisp_Object Qmenu_force;
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253 Lisp_Object Qmenu_fallback;
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254 Lisp_Object Qmenu_quit;
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255 Lisp_Object Qmenu_up;
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256 Lisp_Object Qmenu_down;
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257 Lisp_Object Qmenu_left;
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258 Lisp_Object Qmenu_right;
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259 Lisp_Object Qmenu_select;
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260 Lisp_Object Qmenu_escape;
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261
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430
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262 Lisp_Object Qself_insert_defer_undo;
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263
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428
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264 /* this is in keymap.c */
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265 extern Lisp_Object Fmake_keymap (Lisp_Object name);
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266
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267 #ifdef DEBUG_XEMACS
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268 int debug_emacs_events;
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269
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270 static void
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271 external_debugging_print_event (char *event_description, Lisp_Object event)
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272 {
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273 write_c_string ("(", Qexternal_debugging_output);
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274 write_c_string (event_description, Qexternal_debugging_output);
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275 write_c_string (") ", Qexternal_debugging_output);
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276 print_internal (event, Qexternal_debugging_output, 1);
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277 write_c_string ("\n", Qexternal_debugging_output);
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278 }
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279 #define DEBUG_PRINT_EMACS_EVENT(event_description, event) do { \
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280 if (debug_emacs_events) \
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281 external_debugging_print_event (event_description, event); \
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282 } while (0)
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283 #else
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284 #define DEBUG_PRINT_EMACS_EVENT(string, event)
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285 #endif
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286
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287
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288 /* The callback routines for the window system or terminal driver */
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289 struct event_stream *event_stream;
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290
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291 /* This structure is what we use to encapsulate the state of a command sequence
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292 being composed; key events are executed by adding themselves to the command
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293 builder; if the command builder is then complete (does not still represent
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294 a prefix key sequence) it executes the corresponding command.
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295 */
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296 struct command_builder
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297 {
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298 struct lcrecord_header header;
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299 Lisp_Object console; /* back pointer to the console this command
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300 builder is for */
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301 /* Qnil, or a Lisp_Event representing the first event read
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302 * after the last command completed. Threaded. */
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303 /* #### NYI */
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304 Lisp_Object prefix_events;
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305 /* Qnil, or a Lisp_Event representing event in the current
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306 * keymap-lookup sequence. Subsequent events are threaded via
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307 * the event's next slot */
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308 Lisp_Object current_events;
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309 /* Last elt of above */
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310 Lisp_Object most_current_event;
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311 /* Last elt before function map code took over. What this means is:
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312 All prefixes up to (but not including) this event have non-nil
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313 bindings, but the prefix including this event has a nil binding.
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314 Any events in the chain after this one were read solely because
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315 we're part of a possible function key. If we end up with
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316 something that's not part of a possible function key, we have to
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317 unread all of those events. */
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318 Lisp_Object last_non_munged_event;
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319 /* One set of values for function-key-map, one for key-translation-map */
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320 struct munging_key_translation
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321 {
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322 /* First event that can begin a possible function key sequence
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323 (to be translated according to function-key-map). Normally
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324 this is the first event in the chain. However, once we've
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325 translated a sequence through function-key-map, this will point
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326 to the first event after the translated sequence: we don't ever
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327 want to translate any events twice through function-key-map, or
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328 things could get really screwed up (e.g. if the user created a
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329 translation loop). If this is nil, then the next-read event is
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330 the first that can begin a function key sequence. */
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331 Lisp_Object first_mungeable_event;
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332 } munge_me[2];
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333
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334 Bufbyte *echo_buf;
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335 Bytecount echo_buf_length; /* size of echo_buf */
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336 Bytecount echo_buf_index; /* index into echo_buf
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337 * -1 before doing echoing for new cmd */
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338 /* Self-insert-command is magic in that it doesn't always push an undo-
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339 boundary: up to 20 consecutive self-inserts can happen before an undo-
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340 boundary is pushed. This variable is that counter.
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341 */
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342 int self_insert_countdown;
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343 };
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344
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345 static void echo_key_event (struct command_builder *, Lisp_Object event);
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346 static void maybe_kbd_translate (Lisp_Object event);
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347
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348 /* This structure is basically a typeahead queue: things like
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349 wait-reading-process-output will delay the execution of
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350 keyboard and mouse events by pushing them here.
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351
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352 Chained through event_next()
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353 command_event_queue_tail is a pointer to the last-added element.
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354 */
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355 static Lisp_Object command_event_queue;
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356 static Lisp_Object command_event_queue_tail;
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357
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358 /* Nonzero means echo unfinished commands after this many seconds of pause. */
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359 static Lisp_Object Vecho_keystrokes;
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360
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361 /* The number of keystrokes since the last auto-save. */
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362 static int keystrokes_since_auto_save;
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363
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364 /* Used by the C-g signal handler so that it will never "hard quit"
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365 when waiting for an event. Otherwise holding down C-g could
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366 cause a suspension back to the shell, which is generally
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367 undesirable. (#### This doesn't fully work.) */
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368
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369 int emacs_is_blocking;
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370
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371 /* Handlers which run during sit-for, sleep-for and accept-process-output
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372 are not allowed to recursively call these routines. We record here
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373 if we are in that situation. */
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374
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375 static Lisp_Object recursive_sit_for;
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376
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377
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378
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379 /**********************************************************************/
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380 /* Command-builder object */
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381 /**********************************************************************/
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382
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383 #define XCOMMAND_BUILDER(x) \
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384 XRECORD (x, command_builder, struct command_builder)
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385 #define XSETCOMMAND_BUILDER(x, p) XSETRECORD (x, p, command_builder)
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386 #define COMMAND_BUILDERP(x) RECORDP (x, command_builder)
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387 #define CHECK_COMMAND_BUILDER(x) CHECK_RECORD (x, command_builder)
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388
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389 static Lisp_Object
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390 mark_command_builder (Lisp_Object obj)
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391 {
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392 struct command_builder *builder = XCOMMAND_BUILDER (obj);
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393 mark_object (builder->prefix_events);
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|
|
394 mark_object (builder->current_events);
|
|
|
395 mark_object (builder->most_current_event);
|
|
|
396 mark_object (builder->last_non_munged_event);
|
|
|
397 mark_object (builder->munge_me[0].first_mungeable_event);
|
|
|
398 mark_object (builder->munge_me[1].first_mungeable_event);
|
|
|
399 return builder->console;
|
|
|
400 }
|
|
|
401
|
|
|
402 static void
|
|
|
403 finalize_command_builder (void *header, int for_disksave)
|
|
|
404 {
|
|
|
405 if (!for_disksave)
|
|
|
406 {
|
|
|
407 xfree (((struct command_builder *) header)->echo_buf);
|
|
|
408 ((struct command_builder *) header)->echo_buf = 0;
|
|
|
409 }
|
|
|
410 }
|
|
|
411
|
|
|
412 DEFINE_LRECORD_IMPLEMENTATION ("command-builder", command_builder,
|
|
|
413 mark_command_builder, internal_object_printer,
|
|
|
414 finalize_command_builder, 0, 0, 0,
|
|
|
415 struct command_builder);
|
|
|
416
|
|
|
417 static void
|
|
|
418 reset_command_builder_event_chain (struct command_builder *builder)
|
|
|
419 {
|
|
|
420 builder->prefix_events = Qnil;
|
|
|
421 builder->current_events = Qnil;
|
|
|
422 builder->most_current_event = Qnil;
|
|
|
423 builder->last_non_munged_event = Qnil;
|
|
|
424 builder->munge_me[0].first_mungeable_event = Qnil;
|
|
|
425 builder->munge_me[1].first_mungeable_event = Qnil;
|
|
|
426 }
|
|
|
427
|
|
|
428 Lisp_Object
|
|
|
429 allocate_command_builder (Lisp_Object console)
|
|
|
430 {
|
|
|
431 Lisp_Object builder_obj;
|
|
|
432 struct command_builder *builder =
|
|
|
433 alloc_lcrecord_type (struct command_builder, &lrecord_command_builder);
|
|
|
434
|
|
|
435 builder->console = console;
|
|
|
436 reset_command_builder_event_chain (builder);
|
|
|
437 builder->echo_buf_length = 300; /* #### Kludge */
|
|
|
438 builder->echo_buf = xnew_array (Bufbyte, builder->echo_buf_length);
|
|
|
439 builder->echo_buf[0] = 0;
|
|
|
440 builder->echo_buf_index = -1;
|
|
|
441 builder->echo_buf_index = -1;
|
|
|
442 builder->self_insert_countdown = 0;
|
|
|
443
|
|
|
444 XSETCOMMAND_BUILDER (builder_obj, builder);
|
|
|
445 return builder_obj;
|
|
|
446 }
|
|
|
447
|
|
|
448 static void
|
|
|
449 command_builder_append_event (struct command_builder *builder,
|
|
|
450 Lisp_Object event)
|
|
|
451 {
|
|
|
452 assert (EVENTP (event));
|
|
|
453
|
|
|
454 if (EVENTP (builder->most_current_event))
|
|
|
455 XSET_EVENT_NEXT (builder->most_current_event, event);
|
|
|
456 else
|
|
|
457 builder->current_events = event;
|
|
|
458
|
|
|
459 builder->most_current_event = event;
|
|
|
460 if (NILP (builder->munge_me[0].first_mungeable_event))
|
|
|
461 builder->munge_me[0].first_mungeable_event = event;
|
|
|
462 if (NILP (builder->munge_me[1].first_mungeable_event))
|
|
|
463 builder->munge_me[1].first_mungeable_event = event;
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
|
467 /**********************************************************************/
|
|
|
468 /* Low-level interfaces onto event methods */
|
|
|
469 /**********************************************************************/
|
|
|
470
|
|
|
471 enum event_stream_operation
|
|
|
472 {
|
|
|
473 EVENT_STREAM_PROCESS,
|
|
|
474 EVENT_STREAM_TIMEOUT,
|
|
|
475 EVENT_STREAM_CONSOLE,
|
|
|
476 EVENT_STREAM_READ
|
|
|
477 };
|
|
|
478
|
|
|
479 static void
|
|
|
480 check_event_stream_ok (enum event_stream_operation op)
|
|
|
481 {
|
|
|
482 if (!event_stream && noninteractive)
|
|
|
483 {
|
|
|
484 switch (op)
|
|
|
485 {
|
|
|
486 case EVENT_STREAM_PROCESS:
|
|
|
487 error ("Can't start subprocesses in -batch mode");
|
|
|
488 case EVENT_STREAM_TIMEOUT:
|
|
|
489 error ("Can't add timeouts in -batch mode");
|
|
|
490 case EVENT_STREAM_CONSOLE:
|
|
|
491 error ("Can't add consoles in -batch mode");
|
|
|
492 case EVENT_STREAM_READ:
|
|
|
493 error ("Can't read events in -batch mode");
|
|
|
494 default:
|
|
|
495 abort ();
|
|
|
496 }
|
|
|
497 }
|
|
|
498 else if (!event_stream)
|
|
|
499 {
|
|
|
500 error ("event-stream callbacks not initialized (internal error?)");
|
|
|
501 }
|
|
|
502 }
|
|
|
503
|
|
|
504 static int
|
|
|
505 event_stream_event_pending_p (int user)
|
|
|
506 {
|
|
|
507 return event_stream && event_stream->event_pending_p (user);
|
|
|
508 }
|
|
|
509
|
|
|
510 static int
|
|
|
511 maybe_read_quit_event (struct Lisp_Event *event)
|
|
|
512 {
|
|
|
513 /* A C-g that came from `sigint_happened' will always come from the
|
|
|
514 controlling terminal. If that doesn't exist, however, then the
|
|
|
515 user manually sent us a SIGINT, and we pretend the C-g came from
|
|
|
516 the selected console. */
|
|
|
517 struct console *con;
|
|
|
518
|
|
|
519 if (CONSOLEP (Vcontrolling_terminal) &&
|
|
|
520 CONSOLE_LIVE_P (XCONSOLE (Vcontrolling_terminal)))
|
|
|
521 con = XCONSOLE (Vcontrolling_terminal);
|
|
|
522 else
|
|
|
523 con = XCONSOLE (Fselected_console ());
|
|
|
524
|
|
|
525 if (sigint_happened)
|
|
|
526 {
|
|
|
527 int ch = CONSOLE_QUIT_CHAR (con);
|
|
|
528 sigint_happened = 0;
|
|
|
529 Vquit_flag = Qnil;
|
|
|
530 character_to_event (ch, event, con, 1, 1);
|
|
|
531 event->channel = make_console (con);
|
|
|
532 return 1;
|
|
|
533 }
|
|
|
534 return 0;
|
|
|
535 }
|
|
|
536
|
|
|
537 void
|
|
|
538 event_stream_next_event (struct Lisp_Event *event)
|
|
|
539 {
|
|
|
540 Lisp_Object event_obj;
|
|
|
541
|
|
|
542 check_event_stream_ok (EVENT_STREAM_READ);
|
|
|
543
|
|
|
544 XSETEVENT (event_obj, event);
|
|
|
545 zero_event (event);
|
|
|
546 /* If C-g was pressed, treat it as a character to be read.
|
|
|
547 Note that if C-g was pressed while we were blocking,
|
|
|
548 the SIGINT signal handler will be called. It will
|
|
|
549 set Vquit_flag and write a byte on our "fake pipe",
|
|
|
550 which will unblock us. */
|
|
|
551 if (maybe_read_quit_event (event))
|
|
|
552 {
|
|
|
553 DEBUG_PRINT_EMACS_EVENT ("SIGINT", event_obj);
|
|
|
554 return;
|
|
|
555 }
|
|
|
556
|
|
|
557 /* If a longjmp() happens in the callback, we're screwed.
|
|
|
558 Let's hope it doesn't. I think the code here is fairly
|
|
|
559 clean and doesn't do this. */
|
|
|
560 emacs_is_blocking = 1;
|
|
|
561 #if 0
|
|
|
562 /* Do this if the poll-for-quit timer seems to be taking too
|
|
|
563 much CPU time when idle ... */
|
|
|
564 reset_poll_for_quit ();
|
|
|
565 #endif
|
|
|
566 event_stream->next_event_cb (event);
|
|
|
567 #if 0
|
|
|
568 init_poll_for_quit ();
|
|
|
569 #endif
|
|
|
570 emacs_is_blocking = 0;
|
|
|
571
|
|
|
572 #ifdef DEBUG_XEMACS
|
|
|
573 /* timeout events have more info set later, so
|
|
|
574 print the event out in next_event_internal(). */
|
|
|
575 if (event->event_type != timeout_event)
|
|
|
576 DEBUG_PRINT_EMACS_EVENT ("real", event_obj);
|
|
|
577 #endif
|
|
|
578 maybe_kbd_translate (event_obj);
|
|
|
579 }
|
|
|
580
|
|
|
581 void
|
|
|
582 event_stream_handle_magic_event (struct Lisp_Event *event)
|
|
|
583 {
|
|
|
584 check_event_stream_ok (EVENT_STREAM_READ);
|
|
|
585 event_stream->handle_magic_event_cb (event);
|
|
|
586 }
|
|
|
587
|
|
|
588 static int
|
|
|
589 event_stream_add_timeout (EMACS_TIME timeout)
|
|
|
590 {
|
|
|
591 check_event_stream_ok (EVENT_STREAM_TIMEOUT);
|
|
|
592 return event_stream->add_timeout_cb (timeout);
|
|
|
593 }
|
|
|
594
|
|
|
595 static void
|
|
|
596 event_stream_remove_timeout (int id)
|
|
|
597 {
|
|
|
598 check_event_stream_ok (EVENT_STREAM_TIMEOUT);
|
|
|
599 event_stream->remove_timeout_cb (id);
|
|
|
600 }
|
|
|
601
|
|
|
602 void
|
|
|
603 event_stream_select_console (struct console *con)
|
|
|
604 {
|
|
|
605 check_event_stream_ok (EVENT_STREAM_CONSOLE);
|
|
|
606 if (!con->input_enabled)
|
|
|
607 {
|
|
|
608 event_stream->select_console_cb (con);
|
|
|
609 con->input_enabled = 1;
|
|
|
610 }
|
|
|
611 }
|
|
|
612
|
|
|
613 void
|
|
|
614 event_stream_unselect_console (struct console *con)
|
|
|
615 {
|
|
|
616 check_event_stream_ok (EVENT_STREAM_CONSOLE);
|
|
|
617 if (con->input_enabled)
|
|
|
618 {
|
|
|
619 event_stream->unselect_console_cb (con);
|
|
|
620 con->input_enabled = 0;
|
|
|
621 }
|
|
|
622 }
|
|
|
623
|
|
|
624 void
|
|
|
625 event_stream_select_process (struct Lisp_Process *proc)
|
|
|
626 {
|
|
|
627 check_event_stream_ok (EVENT_STREAM_PROCESS);
|
|
|
628 if (!get_process_selected_p (proc))
|
|
|
629 {
|
|
|
630 event_stream->select_process_cb (proc);
|
|
|
631 set_process_selected_p (proc, 1);
|
|
|
632 }
|
|
|
633 }
|
|
|
634
|
|
|
635 void
|
|
|
636 event_stream_unselect_process (struct Lisp_Process *proc)
|
|
|
637 {
|
|
|
638 check_event_stream_ok (EVENT_STREAM_PROCESS);
|
|
|
639 if (get_process_selected_p (proc))
|
|
|
640 {
|
|
|
641 event_stream->unselect_process_cb (proc);
|
|
|
642 set_process_selected_p (proc, 0);
|
|
|
643 }
|
|
|
644 }
|
|
|
645
|
|
|
646 USID
|
|
|
647 event_stream_create_stream_pair (void* inhandle, void* outhandle,
|
|
|
648 Lisp_Object* instream, Lisp_Object* outstream, int flags)
|
|
|
649 {
|
|
|
650 check_event_stream_ok (EVENT_STREAM_PROCESS);
|
|
|
651 return event_stream->create_stream_pair_cb
|
|
|
652 (inhandle, outhandle, instream, outstream, flags);
|
|
|
653 }
|
|
|
654
|
|
|
655 USID
|
|
|
656 event_stream_delete_stream_pair (Lisp_Object instream, Lisp_Object outstream)
|
|
|
657 {
|
|
|
658 check_event_stream_ok (EVENT_STREAM_PROCESS);
|
|
|
659 return event_stream->delete_stream_pair_cb (instream, outstream);
|
|
|
660 }
|
|
|
661
|
|
|
662 void
|
|
|
663 event_stream_quit_p (void)
|
|
|
664 {
|
|
|
665 if (event_stream)
|
|
|
666 event_stream->quit_p_cb ();
|
|
|
667 }
|
|
|
668
|
|
|
669
|
|
|
670
|
|
|
671 /**********************************************************************/
|
|
|
672 /* Character prompting */
|
|
|
673 /**********************************************************************/
|
|
|
674
|
|
|
675 static void
|
|
|
676 echo_key_event (struct command_builder *command_builder,
|
|
|
677 Lisp_Object event)
|
|
|
678 {
|
|
|
679 /* This function can GC */
|
|
|
680 char buf[255];
|
|
|
681 Bytecount buf_index = command_builder->echo_buf_index;
|
|
|
682 Bufbyte *e;
|
|
|
683 Bytecount len;
|
|
|
684
|
|
|
685 if (buf_index < 0)
|
|
|
686 {
|
|
|
687 buf_index = 0; /* We're echoing now */
|
|
|
688 clear_echo_area (selected_frame (), Qnil, 0);
|
|
|
689 }
|
|
|
690
|
|
|
691 format_event_object (buf, XEVENT (event), 1);
|
|
|
692 len = strlen (buf);
|
|
|
693
|
|
|
694 if (len + buf_index + 4 > command_builder->echo_buf_length)
|
|
|
695 return;
|
|
|
696 e = command_builder->echo_buf + buf_index;
|
|
|
697 memcpy (e, buf, len);
|
|
|
698 e += len;
|
|
|
699
|
|
|
700 e[0] = ' ';
|
|
|
701 e[1] = '-';
|
|
|
702 e[2] = ' ';
|
|
|
703 e[3] = 0;
|
|
|
704
|
|
|
705 command_builder->echo_buf_index = buf_index + len + 1;
|
|
|
706 }
|
|
|
707
|
|
|
708 static void
|
|
|
709 regenerate_echo_keys_from_this_command_keys (struct command_builder *
|
|
|
710 builder)
|
|
|
711 {
|
|
|
712 Lisp_Object event;
|
|
|
713
|
|
|
714 builder->echo_buf_index = 0;
|
|
|
715
|
|
|
716 EVENT_CHAIN_LOOP (event, Vthis_command_keys)
|
|
|
717 echo_key_event (builder, event);
|
|
|
718 }
|
|
|
719
|
|
|
720 static void
|
|
|
721 maybe_echo_keys (struct command_builder *command_builder, int no_snooze)
|
|
|
722 {
|
|
|
723 /* This function can GC */
|
|
|
724 double echo_keystrokes;
|
|
|
725 struct frame *f = selected_frame ();
|
|
|
726 /* Message turns off echoing unless more keystrokes turn it on again. */
|
|
|
727 if (echo_area_active (f) && !EQ (Qcommand, echo_area_status (f)))
|
|
|
728 return;
|
|
|
729
|
|
|
730 if (INTP (Vecho_keystrokes) || FLOATP (Vecho_keystrokes))
|
|
|
731 echo_keystrokes = extract_float (Vecho_keystrokes);
|
|
|
732 else
|
|
|
733 echo_keystrokes = 0;
|
|
|
734
|
|
|
735 if (minibuf_level == 0
|
|
|
736 && echo_keystrokes > 0.0
|
|
|
737 && !lw_menu_active)
|
|
|
738 {
|
|
|
739 if (!no_snooze)
|
|
|
740 {
|
|
|
741 /* #### C-g here will cause QUIT. Setting dont_check_for_quit
|
|
|
742 doesn't work. See check_quit. */
|
|
|
743 if (NILP (Fsit_for (Vecho_keystrokes, Qnil)))
|
|
|
744 /* input came in, so don't echo. */
|
|
|
745 return;
|
|
|
746 }
|
|
|
747
|
|
|
748 echo_area_message (f, command_builder->echo_buf, Qnil, 0,
|
|
|
749 /* not echo_buf_index. That doesn't include
|
|
|
750 the terminating " - ". */
|
|
|
751 strlen ((char *) command_builder->echo_buf),
|
|
|
752 Qcommand);
|
|
|
753 }
|
|
|
754 }
|
|
|
755
|
|
|
756 static void
|
|
|
757 reset_key_echo (struct command_builder *command_builder,
|
|
|
758 int remove_echo_area_echo)
|
|
|
759 {
|
|
|
760 /* This function can GC */
|
|
|
761 struct frame *f = selected_frame ();
|
|
|
762
|
|
|
763 command_builder->echo_buf_index = -1;
|
|
|
764
|
|
|
765 if (remove_echo_area_echo)
|
|
|
766 clear_echo_area (f, Qcommand, 0);
|
|
|
767 }
|
|
|
768
|
|
|
769
|
|
|
770 /**********************************************************************/
|
|
|
771 /* random junk */
|
|
|
772 /**********************************************************************/
|
|
|
773
|
|
|
774 static void
|
|
|
775 maybe_kbd_translate (Lisp_Object event)
|
|
|
776 {
|
|
|
777 Emchar c;
|
|
|
778 int did_translate = 0;
|
|
|
779
|
|
|
780 if (XEVENT_TYPE (event) != key_press_event)
|
|
|
781 return;
|
|
|
782 if (!HASH_TABLEP (Vkeyboard_translate_table))
|
|
|
783 return;
|
|
|
784 if (EQ (Fhash_table_count (Vkeyboard_translate_table), Qzero))
|
|
|
785 return;
|
|
|
786
|
|
|
787 c = event_to_character (XEVENT (event), 0, 0, 0);
|
|
|
788 if (c != -1)
|
|
|
789 {
|
|
|
790 Lisp_Object traduit = Fgethash (make_char (c), Vkeyboard_translate_table,
|
|
|
791 Qnil);
|
|
|
792 if (!NILP (traduit) && SYMBOLP (traduit))
|
|
|
793 {
|
|
|
794 XEVENT (event)->event.key.keysym = traduit;
|
|
|
795 XEVENT (event)->event.key.modifiers = 0;
|
|
|
796 did_translate = 1;
|
|
|
797 }
|
|
|
798 else if (CHARP (traduit))
|
|
|
799 {
|
|
|
800 struct Lisp_Event ev2;
|
|
|
801
|
|
|
802 /* This used to call Fcharacter_to_event() directly into EVENT,
|
|
|
803 but that can eradicate timestamps and other such stuff.
|
|
|
804 This way is safer. */
|
|
|
805 zero_event (&ev2);
|
|
|
806 character_to_event (XCHAR (traduit), &ev2,
|
|
|
807 XCONSOLE (EVENT_CHANNEL (XEVENT (event))), 1, 1);
|
|
|
808 XEVENT (event)->event.key.keysym = ev2.event.key.keysym;
|
|
|
809 XEVENT (event)->event.key.modifiers = ev2.event.key.modifiers;
|
|
|
810 did_translate = 1;
|
|
|
811 }
|
|
|
812 }
|
|
|
813
|
|
|
814 if (!did_translate)
|
|
|
815 {
|
|
|
816 Lisp_Object traduit = Fgethash (XEVENT (event)->event.key.keysym,
|
|
|
817 Vkeyboard_translate_table, Qnil);
|
|
|
818 if (!NILP (traduit) && SYMBOLP (traduit))
|
|
|
819 {
|
|
|
820 XEVENT (event)->event.key.keysym = traduit;
|
|
|
821 did_translate = 1;
|
|
|
822 }
|
|
|
823 }
|
|
|
824
|
|
|
825 #ifdef DEBUG_XEMACS
|
|
|
826 if (did_translate)
|
|
|
827 DEBUG_PRINT_EMACS_EVENT ("->keyboard-translate-table", event);
|
|
|
828 #endif
|
|
|
829 }
|
|
|
830
|
|
|
831 /* NB: The following auto-save stuff is in keyboard.c in FSFmacs, and
|
|
|
832 keystrokes_since_auto_save is equivalent to the difference between
|
|
|
833 num_nonmacro_input_chars and last_auto_save. */
|
|
|
834
|
|
|
835 /* When an auto-save happens, record the "time", and don't do again soon. */
|
|
|
836
|
|
|
837 void
|
|
|
838 record_auto_save (void)
|
|
|
839 {
|
|
|
840 keystrokes_since_auto_save = 0;
|
|
|
841 }
|
|
|
842
|
|
|
843 /* Make an auto save happen as soon as possible at command level. */
|
|
|
844
|
|
|
845 void
|
|
|
846 force_auto_save_soon (void)
|
|
|
847 {
|
|
|
848 keystrokes_since_auto_save = 1 + max (auto_save_interval, 20);
|
|
|
849
|
|
|
850 #if 0 /* FSFmacs */
|
|
|
851 record_asynch_buffer_change ();
|
|
|
852 #endif
|
|
|
853 }
|
|
|
854
|
|
|
855 static void
|
|
|
856 maybe_do_auto_save (void)
|
|
|
857 {
|
|
|
858 /* This function can call lisp */
|
|
|
859 keystrokes_since_auto_save++;
|
|
|
860 if (auto_save_interval > 0 &&
|
|
|
861 keystrokes_since_auto_save > max (auto_save_interval, 20) &&
|
|
|
862 !detect_input_pending ())
|
|
|
863 {
|
|
|
864 Fdo_auto_save (Qnil, Qnil);
|
|
|
865 record_auto_save ();
|
|
|
866 }
|
|
|
867 }
|
|
|
868
|
|
|
869 static Lisp_Object
|
|
|
870 print_help (Lisp_Object object)
|
|
|
871 {
|
|
|
872 Fprinc (object, Qnil);
|
|
|
873 return Qnil;
|
|
|
874 }
|
|
|
875
|
|
|
876 static void
|
|
|
877 execute_help_form (struct command_builder *command_builder,
|
|
|
878 Lisp_Object event)
|
|
|
879 {
|
|
|
880 /* This function can GC */
|
|
|
881 Lisp_Object help = Qnil;
|
|
|
882 int speccount = specpdl_depth ();
|
|
|
883 Bytecount buf_index = command_builder->echo_buf_index;
|
|
|
884 Lisp_Object echo = ((buf_index <= 0)
|
|
|
885 ? Qnil
|
|
|
886 : make_string (command_builder->echo_buf,
|
|
|
887 buf_index));
|
|
|
888 struct gcpro gcpro1, gcpro2;
|
|
|
889 GCPRO2 (echo, help);
|
|
|
890
|
|
|
891 record_unwind_protect (save_window_excursion_unwind,
|
|
|
892 Fcurrent_window_configuration (Qnil));
|
|
|
893 reset_key_echo (command_builder, 1);
|
|
|
894
|
|
|
895 help = Feval (Vhelp_form);
|
|
|
896 if (STRINGP (help))
|
|
|
897 internal_with_output_to_temp_buffer (build_string ("*Help*"),
|
|
|
898 print_help, help, Qnil);
|
|
|
899 Fnext_command_event (event, Qnil);
|
|
|
900 /* Remove the help from the frame */
|
|
|
901 unbind_to (speccount, Qnil);
|
|
|
902 /* Hmmmm. Tricky. The unbind restores an old window configuration,
|
|
|
903 apparently bypassing any setting of windows_structure_changed.
|
|
|
904 So we need to set it so that things get redrawn properly. */
|
|
|
905 /* #### This is massive overkill. Look at doing it better once the
|
|
|
906 new redisplay is fully in place. */
|
|
|
907 {
|
|
|
908 Lisp_Object frmcons, devcons, concons;
|
|
|
909 FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
|
|
|
910 {
|
|
|
911 struct frame *f = XFRAME (XCAR (frmcons));
|
|
|
912 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
|
|
|
913 }
|
|
|
914 }
|
|
|
915
|
|
|
916 redisplay ();
|
|
|
917 if (event_matches_key_specifier_p (XEVENT (event), make_char (' ')))
|
|
|
918 {
|
|
|
919 /* Discard next key if it is a space */
|
|
|
920 reset_key_echo (command_builder, 1);
|
|
|
921 Fnext_command_event (event, Qnil);
|
|
|
922 }
|
|
|
923
|
|
|
924 command_builder->echo_buf_index = buf_index;
|
|
|
925 if (buf_index > 0)
|
|
|
926 memcpy (command_builder->echo_buf,
|
|
|
927 XSTRING_DATA (echo), buf_index + 1); /* terminating 0 */
|
|
|
928 UNGCPRO;
|
|
|
929 }
|
|
|
930
|
|
|
931
|
|
|
932 /**********************************************************************/
|
|
|
933 /* input pending */
|
|
|
934 /**********************************************************************/
|
|
|
935
|
|
|
936 int
|
|
|
937 detect_input_pending (void)
|
|
|
938 {
|
|
|
939 /* Always call the event_pending_p hook even if there's an unread
|
|
|
940 character, because that might do some needed ^G detection (on
|
|
|
941 systems without SIGIO, for example).
|
|
|
942 */
|
|
|
943 if (event_stream_event_pending_p (1))
|
|
|
944 return 1;
|
|
|
945 if (!NILP (Vunread_command_events) || !NILP (Vunread_command_event))
|
|
|
946 return 1;
|
|
|
947 if (!NILP (command_event_queue))
|
|
|
948 {
|
|
|
949 Lisp_Object event;
|
|
|
950
|
|
|
951 EVENT_CHAIN_LOOP (event, command_event_queue)
|
|
|
952 {
|
|
|
953 if (XEVENT_TYPE (event) != eval_event
|
|
|
954 && XEVENT_TYPE (event) != magic_eval_event)
|
|
|
955 return 1;
|
|
|
956 }
|
|
|
957 }
|
|
|
958 return 0;
|
|
|
959 }
|
|
|
960
|
|
|
961 DEFUN ("input-pending-p", Finput_pending_p, 0, 0, 0, /*
|
|
|
962 Return t if command input is currently available with no waiting.
|
|
|
963 Actually, the value is nil only if we can be sure that no input is available.
|
|
|
964 */
|
|
|
965 ())
|
|
|
966 {
|
|
|
967 return detect_input_pending () ? Qt : Qnil;
|
|
|
968 }
|
|
|
969
|
|
|
970
|
|
|
971 /**********************************************************************/
|
|
|
972 /* timeouts */
|
|
|
973 /**********************************************************************/
|
|
|
974
|
|
|
975 /**** Low-level timeout functions. ****
|
|
|
976
|
|
|
977 These functions maintain a sorted list of one-shot timeouts (where
|
|
|
978 the timeouts are in absolute time). They are intended for use by
|
|
|
979 functions that need to convert a list of absolute timeouts into a
|
|
|
980 series of intervals to wait for. */
|
|
|
981
|
|
|
982 /* We ensure that 0 is never a valid ID, so that a value of 0 can be
|
|
|
983 used to indicate an absence of a timer. */
|
|
|
984 static int low_level_timeout_id_tick;
|
|
|
985
|
|
|
986 static struct low_level_timeout_blocktype
|
|
|
987 {
|
|
|
988 Blocktype_declare (struct low_level_timeout);
|
|
|
989 } *the_low_level_timeout_blocktype;
|
|
|
990
|
|
|
991 /* Add a one-shot timeout at time TIME to TIMEOUT_LIST. Return
|
|
|
992 a unique ID identifying the timeout. */
|
|
|
993
|
|
|
994 int
|
|
|
995 add_low_level_timeout (struct low_level_timeout **timeout_list,
|
|
|
996 EMACS_TIME thyme)
|
|
|
997 {
|
|
|
998 struct low_level_timeout *tm;
|
|
|
999 struct low_level_timeout *t, **tt;
|
|
|
1000
|
|
|
1001 /* Allocate a new time struct. */
|
|
|
1002
|
|
|
1003 tm = Blocktype_alloc (the_low_level_timeout_blocktype);
|
|
|
1004 tm->next = NULL;
|
|
|
1005 if (low_level_timeout_id_tick == 0)
|
|
|
1006 low_level_timeout_id_tick++;
|
|
|
1007 tm->id = low_level_timeout_id_tick++;
|
|
|
1008 tm->time = thyme;
|
|
|
1009
|
|
|
1010 /* Add it to the queue. */
|
|
|
1011
|
|
|
1012 tt = timeout_list;
|
|
|
1013 t = *tt;
|
|
|
1014 while (t && EMACS_TIME_EQUAL_OR_GREATER (tm->time, t->time))
|
|
|
1015 {
|
|
|
1016 tt = &t->next;
|
|
|
1017 t = *tt;
|
|
|
1018 }
|
|
|
1019 tm->next = t;
|
|
|
1020 *tt = tm;
|
|
|
1021
|
|
|
1022 return tm->id;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 /* Remove the low-level timeout identified by ID from TIMEOUT_LIST.
|
|
|
1026 If the timeout is not there, do nothing. */
|
|
|
1027
|
|
|
1028 void
|
|
|
1029 remove_low_level_timeout (struct low_level_timeout **timeout_list, int id)
|
|
|
1030 {
|
|
|
1031 struct low_level_timeout *t, *prev;
|
|
|
1032
|
|
|
1033 /* find it */
|
|
|
1034
|
|
|
1035 for (t = *timeout_list, prev = NULL; t && t->id != id; t = t->next)
|
|
|
1036 prev = t;
|
|
|
1037
|
|
|
1038 if (!t)
|
|
|
1039 return; /* couldn't find it */
|
|
|
1040
|
|
|
1041 if (!prev)
|
|
|
1042 *timeout_list = t->next;
|
|
|
1043 else prev->next = t->next;
|
|
|
1044
|
|
|
1045 Blocktype_free (the_low_level_timeout_blocktype, t);
|
|
|
1046 }
|
|
|
1047
|
|
|
1048 /* If there are timeouts on TIMEOUT_LIST, store the relative time
|
|
|
1049 interval to the first timeout on the list into INTERVAL and
|
|
|
1050 return 1. Otherwise, return 0. */
|
|
|
1051
|
|
|
1052 int
|
|
|
1053 get_low_level_timeout_interval (struct low_level_timeout *timeout_list,
|
|
|
1054 EMACS_TIME *interval)
|
|
|
1055 {
|
|
|
1056 if (!timeout_list) /* no timer events; block indefinitely */
|
|
|
1057 return 0;
|
|
|
1058 else
|
|
|
1059 {
|
|
|
1060 EMACS_TIME current_time;
|
|
|
1061
|
|
|
1062 /* The time to block is the difference between the first
|
|
|
1063 (earliest) timer on the queue and the current time.
|
|
|
1064 If that is negative, then the timer will fire immediately
|
|
|
1065 but we still have to call select(), with a zero-valued
|
|
|
1066 timeout: user events must have precedence over timer events. */
|
|
|
1067 EMACS_GET_TIME (current_time);
|
|
|
1068 if (EMACS_TIME_GREATER (timeout_list->time, current_time))
|
|
|
1069 EMACS_SUB_TIME (*interval, timeout_list->time,
|
|
|
1070 current_time);
|
|
|
1071 else
|
|
|
1072 EMACS_SET_SECS_USECS (*interval, 0, 0);
|
|
|
1073 return 1;
|
|
|
1074 }
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 /* Pop the first (i.e. soonest) timeout off of TIMEOUT_LIST and return
|
|
|
1078 its ID. Also, if TIME_OUT is not 0, store the absolute time of the
|
|
|
1079 timeout into TIME_OUT. */
|
|
|
1080
|
|
|
1081 int
|
|
|
1082 pop_low_level_timeout (struct low_level_timeout **timeout_list,
|
|
|
1083 EMACS_TIME *time_out)
|
|
|
1084 {
|
|
|
1085 struct low_level_timeout *tm = *timeout_list;
|
|
|
1086 int id;
|
|
|
1087
|
|
|
1088 assert (tm);
|
|
|
1089 id = tm->id;
|
|
|
1090 if (time_out)
|
|
|
1091 *time_out = tm->time;
|
|
|
1092 *timeout_list = tm->next;
|
|
|
1093 Blocktype_free (the_low_level_timeout_blocktype, tm);
|
|
|
1094 return id;
|
|
|
1095 }
|
|
|
1096
|
|
|
1097
|
|
|
1098 /**** High-level timeout functions. ****/
|
|
|
1099
|
|
|
1100 static int timeout_id_tick;
|
|
|
1101
|
|
|
1102 static Lisp_Object pending_timeout_list, pending_async_timeout_list;
|
|
|
1103
|
|
|
1104 static Lisp_Object Vtimeout_free_list;
|
|
|
1105
|
|
|
1106 static Lisp_Object
|
|
|
1107 mark_timeout (Lisp_Object obj)
|
|
|
1108 {
|
|
|
1109 struct Lisp_Timeout *tm = XTIMEOUT (obj);
|
|
|
1110 mark_object (tm->function);
|
|
|
1111 return tm->object;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114 /* Should never, ever be called. (except by an external debugger) */
|
|
|
1115 static void
|
|
|
1116 print_timeout (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
|
|
|
1117 {
|
|
|
1118 CONST struct Lisp_Timeout *t = XTIMEOUT (obj);
|
|
|
1119 char buf[64];
|
|
|
1120
|
|
|
1121 sprintf (buf, "#<INTERNAL OBJECT (XEmacs bug?) (timeout) 0x%lx>",
|
|
|
1122 (unsigned long) t);
|
|
|
1123 write_c_string (buf, printcharfun);
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 static const struct lrecord_description timeout_description[] = {
|
|
|
1127 { XD_LISP_OBJECT, offsetof(struct Lisp_Timeout, function), 2 },
|
|
|
1128 { XD_END }
|
|
|
1129 };
|
|
|
1130
|
|
|
1131 DEFINE_LRECORD_IMPLEMENTATION ("timeout", timeout,
|
|
|
1132 mark_timeout, print_timeout,
|
|
|
1133 0, 0, 0, timeout_description, struct Lisp_Timeout);
|
|
|
1134
|
|
|
1135 /* Generate a timeout and return its ID. */
|
|
|
1136
|
|
|
1137 int
|
|
|
1138 event_stream_generate_wakeup (unsigned int milliseconds,
|
|
|
1139 unsigned int vanilliseconds,
|
|
|
1140 Lisp_Object function, Lisp_Object object,
|
|
|
1141 int async_p)
|
|
|
1142 {
|
|
|
1143 Lisp_Object op = allocate_managed_lcrecord (Vtimeout_free_list);
|
|
|
1144 struct Lisp_Timeout *timeout = XTIMEOUT (op);
|
|
|
1145 EMACS_TIME current_time;
|
|
|
1146 EMACS_TIME interval;
|
|
|
1147
|
|
|
1148 timeout->id = timeout_id_tick++;
|
|
|
1149 timeout->resignal_msecs = vanilliseconds;
|
|
|
1150 timeout->function = function;
|
|
|
1151 timeout->object = object;
|
|
|
1152
|
|
|
1153 EMACS_GET_TIME (current_time);
|
|
|
1154 EMACS_SET_SECS_USECS (interval, milliseconds / 1000,
|
|
|
1155 1000 * (milliseconds % 1000));
|
|
|
1156 EMACS_ADD_TIME (timeout->next_signal_time, current_time, interval);
|
|
|
1157
|
|
|
1158 if (async_p)
|
|
|
1159 {
|
|
|
1160 timeout->interval_id =
|
|
|
1161 event_stream_add_async_timeout (timeout->next_signal_time);
|
|
|
1162 pending_async_timeout_list = noseeum_cons (op,
|
|
|
1163 pending_async_timeout_list);
|
|
|
1164 }
|
|
|
1165 else
|
|
|
1166 {
|
|
|
1167 timeout->interval_id =
|
|
|
1168 event_stream_add_timeout (timeout->next_signal_time);
|
|
|
1169 pending_timeout_list = noseeum_cons (op, pending_timeout_list);
|
|
|
1170 }
|
|
|
1171 return timeout->id;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 /* Given the INTERVAL-ID of a timeout just signalled, resignal the timeout
|
|
|
1175 as necessary and return the timeout's ID and function and object slots.
|
|
|
1176
|
|
|
1177 This should be called as a result of receiving notice that a timeout
|
|
|
1178 has fired. INTERVAL-ID is *not* the timeout's ID, but is the ID that
|
|
|
1179 identifies this particular firing of the timeout. INTERVAL-ID's and
|
|
|
1180 timeout ID's are in separate number spaces and bear no relation to
|
|
|
1181 each other. The INTERVAL-ID is all that the event callback routines
|
|
|
1182 work with: they work only with one-shot intervals, not with timeouts
|
|
|
1183 that may fire repeatedly.
|
|
|
1184
|
|
|
1185 NOTE: The returned FUNCTION and OBJECT are *not* GC-protected at all.
|
|
|
1186 */
|
|
|
1187
|
|
|
1188 static int
|
|
|
1189 event_stream_resignal_wakeup (int interval_id, int async_p,
|
|
|
1190 Lisp_Object *function, Lisp_Object *object)
|
|
|
1191 {
|
|
|
1192 Lisp_Object op = Qnil, rest;
|
|
|
1193 struct Lisp_Timeout *timeout;
|
|
|
1194 Lisp_Object *timeout_list;
|
|
|
1195 struct gcpro gcpro1;
|
|
|
1196 int id;
|
|
|
1197
|
|
|
1198 GCPRO1 (op); /* just in case ... because it's removed from the list
|
|
|
1199 for awhile. */
|
|
|
1200
|
|
|
1201 timeout_list = async_p ? &pending_async_timeout_list : &pending_timeout_list;
|
|
|
1202
|
|
|
1203 /* Find the timeout on the list of pending ones. */
|
|
|
1204 LIST_LOOP (rest, *timeout_list)
|
|
|
1205 {
|
|
|
1206 timeout = XTIMEOUT (XCAR (rest));
|
|
|
1207 if (timeout->interval_id == interval_id)
|
|
|
1208 break;
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 assert (!NILP (rest));
|
|
|
1212 op = XCAR (rest);
|
|
|
1213 timeout = XTIMEOUT (op);
|
|
|
1214 /* We make sure to snarf the data out of the timeout object before
|
|
|
1215 we free it with free_managed_lcrecord(). */
|
|
|
1216 id = timeout->id;
|
|
|
1217 *function = timeout->function;
|
|
|
1218 *object = timeout->object;
|
|
|
1219
|
|
|
1220 /* Remove this one from the list of pending timeouts */
|
|
|
1221 *timeout_list = delq_no_quit_and_free_cons (op, *timeout_list);
|
|
|
1222
|
|
|
1223 /* If this timeout wants to be resignalled, do it now. */
|
|
|
1224 if (timeout->resignal_msecs)
|
|
|
1225 {
|
|
|
1226 EMACS_TIME current_time;
|
|
|
1227 EMACS_TIME interval;
|
|
|
1228
|
|
|
1229 /* Determine the time that the next resignalling should occur.
|
|
|
1230 We do that by adding the interval time to the last signalled
|
|
|
1231 time until we get a time that's current.
|
|
|
1232
|
|
|
1233 (This way, it doesn't matter if the timeout was signalled
|
|
|
1234 exactly when we asked for it, or at some time later.)
|
|
|
1235 */
|
|
|
1236 EMACS_GET_TIME (current_time);
|
|
|
1237 EMACS_SET_SECS_USECS (interval, timeout->resignal_msecs / 1000,
|
|
|
1238 1000 * (timeout->resignal_msecs % 1000));
|
|
|
1239 do
|
|
|
1240 {
|
|
|
1241 EMACS_ADD_TIME (timeout->next_signal_time, timeout->next_signal_time,
|
|
|
1242 interval);
|
|
|
1243 } while (EMACS_TIME_GREATER (current_time, timeout->next_signal_time));
|
|
|
1244
|
|
|
1245 if (async_p)
|
|
|
1246 timeout->interval_id =
|
|
|
1247 event_stream_add_async_timeout (timeout->next_signal_time);
|
|
|
1248 else
|
|
|
1249 timeout->interval_id =
|
|
|
1250 event_stream_add_timeout (timeout->next_signal_time);
|
|
|
1251 /* Add back onto the list. Note that the effect of this
|
|
|
1252 is to move frequently-hit timeouts to the front of the
|
|
|
1253 list, which is a good thing. */
|
|
|
1254 *timeout_list = noseeum_cons (op, *timeout_list);
|
|
|
1255 }
|
|
|
1256 else
|
|
|
1257 free_managed_lcrecord (Vtimeout_free_list, op);
|
|
|
1258
|
|
|
1259 UNGCPRO;
|
|
|
1260 return id;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 void
|
|
|
1264 event_stream_disable_wakeup (int id, int async_p)
|
|
|
1265 {
|
|
|
1266 struct Lisp_Timeout *timeout = 0;
|
|
|
1267 Lisp_Object rest;
|
|
|
1268 Lisp_Object *timeout_list;
|
|
|
1269
|
|
|
1270 if (async_p)
|
|
|
1271 timeout_list = &pending_async_timeout_list;
|
|
|
1272 else
|
|
|
1273 timeout_list = &pending_timeout_list;
|
|
|
1274
|
|
|
1275 /* Find the timeout on the list of pending ones, if it's still there. */
|
|
|
1276 LIST_LOOP (rest, *timeout_list)
|
|
|
1277 {
|
|
|
1278 timeout = XTIMEOUT (XCAR (rest));
|
|
|
1279 if (timeout->id == id)
|
|
|
1280 break;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 /* If we found it, remove it from the list and disable the pending
|
|
|
1284 one-shot. */
|
|
|
1285 if (!NILP (rest))
|
|
|
1286 {
|
|
|
1287 Lisp_Object op = XCAR (rest);
|
|
|
1288 *timeout_list =
|
|
|
1289 delq_no_quit_and_free_cons (op, *timeout_list);
|
|
|
1290 if (async_p)
|
|
|
1291 event_stream_remove_async_timeout (timeout->interval_id);
|
|
|
1292 else
|
|
|
1293 event_stream_remove_timeout (timeout->interval_id);
|
|
|
1294 free_managed_lcrecord (Vtimeout_free_list, op);
|
|
|
1295 }
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 static int
|
|
|
1299 event_stream_wakeup_pending_p (int id, int async_p)
|
|
|
1300 {
|
|
|
1301 struct Lisp_Timeout *timeout;
|
|
|
1302 Lisp_Object rest;
|
|
|
1303 Lisp_Object timeout_list;
|
|
|
1304 int found = 0;
|
|
|
1305
|
|
|
1306
|
|
|
1307 if (async_p)
|
|
|
1308 timeout_list = pending_async_timeout_list;
|
|
|
1309 else
|
|
|
1310 timeout_list = pending_timeout_list;
|
|
|
1311
|
|
|
1312 /* Find the element on the list of pending ones, if it's still there. */
|
|
|
1313 LIST_LOOP (rest, timeout_list)
|
|
|
1314 {
|
|
|
1315 timeout = XTIMEOUT (XCAR (rest));
|
|
|
1316 if (timeout->id == id)
|
|
|
1317 {
|
|
|
1318 found = 1;
|
|
|
1319 break;
|
|
|
1320 }
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 return found;
|
|
|
1324 }
|
|
|
1325
|
|
|
1326
|
|
|
1327 /**** Asynch. timeout functions (see also signal.c) ****/
|
|
|
1328
|
|
|
1329 #if !defined (SIGIO) && !defined (DONT_POLL_FOR_QUIT)
|
|
|
1330 extern int poll_for_quit_id;
|
|
|
1331 #endif
|
|
|
1332
|
|
|
1333 #if defined(HAVE_UNIX_PROCESSES) && !defined(SIGCHLD)
|
|
|
1334 extern int poll_for_sigchld_id;
|
|
|
1335 #endif
|
|
|
1336
|
|
|
1337 void
|
|
|
1338 event_stream_deal_with_async_timeout (int interval_id)
|
|
|
1339 {
|
|
|
1340 /* This function can GC */
|
|
|
1341 Lisp_Object humpty, dumpty;
|
|
|
1342 #if ((!defined (SIGIO) && !defined (DONT_POLL_FOR_QUIT)) \
|
|
|
1343 || defined(HAVE_UNIX_PROCESSES) && !defined(SIGCHLD))
|
|
|
1344 int id =
|
|
|
1345 #endif
|
|
|
1346 event_stream_resignal_wakeup (interval_id, 1, &humpty, &dumpty);
|
|
|
1347
|
|
|
1348 #if !defined (SIGIO) && !defined (DONT_POLL_FOR_QUIT)
|
|
|
1349 if (id == poll_for_quit_id)
|
|
|
1350 {
|
|
|
1351 quit_check_signal_happened = 1;
|
|
|
1352 quit_check_signal_tick_count++;
|
|
|
1353 return;
|
|
|
1354 }
|
|
|
1355 #endif
|
|
|
1356
|
|
|
1357 #if defined(HAVE_UNIX_PROCESSES) && !defined(SIGCHLD)
|
|
|
1358 if (id == poll_for_sigchld_id)
|
|
|
1359 {
|
|
|
1360 kick_status_notify ();
|
|
|
1361 return;
|
|
|
1362 }
|
|
|
1363 #endif
|
|
|
1364
|
|
|
1365 /* call1 GC-protects its arguments */
|
|
|
1366 call1_trapping_errors ("Error in asynchronous timeout callback",
|
|
|
1367 humpty, dumpty);
|
|
|
1368 }
|
|
|
1369
|
|
|
1370
|
|
|
1371 /**** Lisp-level timeout functions. ****/
|
|
|
1372
|
|
|
1373 static unsigned long
|
|
|
1374 lisp_number_to_milliseconds (Lisp_Object secs, int allow_0)
|
|
|
1375 {
|
|
|
1376 #ifdef LISP_FLOAT_TYPE
|
|
|
1377 double fsecs;
|
|
|
1378 CHECK_INT_OR_FLOAT (secs);
|
|
|
1379 fsecs = XFLOATINT (secs);
|
|
|
1380 #else
|
|
|
1381 long fsecs;
|
|
|
1382 CHECK_INT (secs);
|
|
|
1383 fsecs = XINT (secs);
|
|
|
1384 #endif
|
|
|
1385 if (fsecs < 0)
|
|
|
1386 signal_simple_error ("timeout is negative", secs);
|
|
|
1387 if (!allow_0 && fsecs == 0)
|
|
|
1388 signal_simple_error ("timeout is non-positive", secs);
|
|
|
1389 if (fsecs >= (((unsigned int) 0xFFFFFFFF) / 1000))
|
|
|
1390 signal_simple_error
|
|
|
1391 ("timeout would exceed 32 bits when represented in milliseconds", secs);
|
|
|
1392
|
|
|
1393 return (unsigned long) (1000 * fsecs);
|
|
|
1394 }
|
|
|
1395
|
|
|
1396 DEFUN ("add-timeout", Fadd_timeout, 3, 4, 0, /*
|
|
|
1397 Add a timeout, to be signaled after the timeout period has elapsed.
|
|
|
1398 SECS is a number of seconds, expressed as an integer or a float.
|
|
|
1399 FUNCTION will be called after that many seconds have elapsed, with one
|
|
|
1400 argument, the given OBJECT. If the optional RESIGNAL argument is provided,
|
|
|
1401 then after this timeout expires, `add-timeout' will automatically be called
|
|
|
1402 again with RESIGNAL as the first argument.
|
|
|
1403
|
|
|
1404 This function returns an object which is the id number of this particular
|
|
|
1405 timeout. You can pass that object to `disable-timeout' to turn off the
|
|
|
1406 timeout before it has been signalled.
|
|
|
1407
|
|
|
1408 NOTE: Id numbers as returned by this function are in a distinct namespace
|
|
|
1409 from those returned by `add-async-timeout'. This means that the same id
|
|
|
1410 number could refer to a pending synchronous timeout and a different pending
|
|
|
1411 asynchronous timeout, and that you cannot pass an id from `add-timeout'
|
|
|
1412 to `disable-async-timeout', or vice-versa.
|
|
|
1413
|
|
|
1414 The number of seconds may be expressed as a floating-point number, in which
|
|
|
1415 case some fractional part of a second will be used. Caveat: the usable
|
|
|
1416 timeout granularity will vary from system to system.
|
|
|
1417
|
|
|
1418 Adding a timeout causes a timeout event to be returned by `next-event', and
|
|
|
1419 the function will be invoked by `dispatch-event,' so if emacs is in a tight
|
|
|
1420 loop, the function will not be invoked until the next call to sit-for or
|
|
|
1421 until the return to top-level (the same is true of process filters).
|
|
|
1422
|
|
|
1423 If you need to have a timeout executed even when XEmacs is in the midst of
|
|
|
1424 running Lisp code, use `add-async-timeout'.
|
|
|
1425
|
|
|
1426 WARNING: if you are thinking of calling add-timeout from inside of a
|
|
|
1427 callback function as a way of resignalling a timeout, think again. There
|
|
|
1428 is a race condition. That's why the RESIGNAL argument exists.
|
|
|
1429 */
|
|
|
1430 (secs, function, object, resignal))
|
|
|
1431 {
|
|
|
1432 unsigned long msecs = lisp_number_to_milliseconds (secs, 0);
|
|
|
1433 unsigned long msecs2 = (NILP (resignal) ? 0 :
|
|
|
1434 lisp_number_to_milliseconds (resignal, 0));
|
|
|
1435 int id;
|
|
|
1436 Lisp_Object lid;
|
|
|
1437 id = event_stream_generate_wakeup (msecs, msecs2, function, object, 0);
|
|
|
1438 lid = make_int (id);
|
|
|
1439 if (id != XINT (lid)) abort ();
|
|
|
1440 return lid;
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 DEFUN ("disable-timeout", Fdisable_timeout, 1, 1, 0, /*
|
|
|
1444 Disable a timeout from signalling any more.
|
|
|
1445 ID should be a timeout id number as returned by `add-timeout'. If ID
|
|
|
1446 corresponds to a one-shot timeout that has already signalled, nothing
|
|
|
1447 will happen.
|
|
|
1448
|
|
|
1449 It will not work to call this function on an id number returned by
|
|
|
1450 `add-async-timeout'. Use `disable-async-timeout' for that.
|
|
|
1451 */
|
|
|
1452 (id))
|
|
|
1453 {
|
|
|
1454 CHECK_INT (id);
|
|
|
1455 event_stream_disable_wakeup (XINT (id), 0);
|
|
|
1456 return Qnil;
|
|
|
1457 }
|
|
|
1458
|
|
|
1459 DEFUN ("add-async-timeout", Fadd_async_timeout, 3, 4, 0, /*
|
|
|
1460 Add an asynchronous timeout, to be signaled after an interval has elapsed.
|
|
|
1461 SECS is a number of seconds, expressed as an integer or a float.
|
|
|
1462 FUNCTION will be called after that many seconds have elapsed, with one
|
|
|
1463 argument, the given OBJECT. If the optional RESIGNAL argument is provided,
|
|
|
1464 then after this timeout expires, `add-async-timeout' will automatically be
|
|
|
1465 called again with RESIGNAL as the first argument.
|
|
|
1466
|
|
|
1467 This function returns an object which is the id number of this particular
|
|
|
1468 timeout. You can pass that object to `disable-async-timeout' to turn off
|
|
|
1469 the timeout before it has been signalled.
|
|
|
1470
|
|
|
1471 NOTE: Id numbers as returned by this function are in a distinct namespace
|
|
|
1472 from those returned by `add-timeout'. This means that the same id number
|
|
|
1473 could refer to a pending synchronous timeout and a different pending
|
|
|
1474 asynchronous timeout, and that you cannot pass an id from
|
|
|
1475 `add-async-timeout' to `disable-timeout', or vice-versa.
|
|
|
1476
|
|
|
1477 The number of seconds may be expressed as a floating-point number, in which
|
|
|
1478 case some fractional part of a second will be used. Caveat: the usable
|
|
|
1479 timeout granularity will vary from system to system.
|
|
|
1480
|
|
|
1481 Adding an asynchronous timeout causes the function to be invoked as soon
|
|
|
1482 as the timeout occurs, even if XEmacs is in the midst of executing some
|
|
|
1483 other code. (This is unlike the synchronous timeouts added with
|
|
|
1484 `add-timeout', where the timeout will only be signalled when XEmacs is
|
|
|
1485 waiting for events, i.e. the next return to top-level or invocation of
|
|
|
1486 `sit-for' or related functions.) This means that the function that is
|
|
|
1487 called *must* not signal an error or change any global state (e.g. switch
|
|
|
1488 buffers or windows) except when locking code is in place to make sure
|
|
|
1489 that race conditions don't occur in the interaction between the
|
|
|
1490 asynchronous timeout function and other code.
|
|
|
1491
|
|
|
1492 Under most circumstances, you should use `add-timeout' instead, as it is
|
|
|
1493 much safer. Asynchronous timeouts should only be used when such behavior
|
|
|
1494 is really necessary.
|
|
|
1495
|
|
|
1496 Asynchronous timeouts are blocked and will not occur when `inhibit-quit'
|
|
|
1497 is non-nil. As soon as `inhibit-quit' becomes nil again, any pending
|
|
|
1498 asynchronous timeouts will get called immediately. (Multiple occurrences
|
|
|
1499 of the same asynchronous timeout are not queued, however.) While the
|
|
|
1500 callback function of an asynchronous timeout is invoked, `inhibit-quit'
|
|
|
1501 is automatically bound to non-nil, and thus other asynchronous timeouts
|
|
|
1502 will be blocked unless the callback function explicitly sets `inhibit-quit'
|
|
|
1503 to nil.
|
|
|
1504
|
|
|
1505 WARNING: if you are thinking of calling `add-async-timeout' from inside of a
|
|
|
1506 callback function as a way of resignalling a timeout, think again. There
|
|
|
1507 is a race condition. That's why the RESIGNAL argument exists.
|
|
|
1508 */
|
|
|
1509 (secs, function, object, resignal))
|
|
|
1510 {
|
|
|
1511 unsigned long msecs = lisp_number_to_milliseconds (secs, 0);
|
|
|
1512 unsigned long msecs2 = (NILP (resignal) ? 0 :
|
|
|
1513 lisp_number_to_milliseconds (resignal, 0));
|
|
|
1514 int id;
|
|
|
1515 Lisp_Object lid;
|
|
|
1516 id = event_stream_generate_wakeup (msecs, msecs2, function, object, 1);
|
|
|
1517 lid = make_int (id);
|
|
|
1518 if (id != XINT (lid)) abort ();
|
|
|
1519 return lid;
|
|
|
1520 }
|
|
|
1521
|
|
|
1522 DEFUN ("disable-async-timeout", Fdisable_async_timeout, 1, 1, 0, /*
|
|
|
1523 Disable an asynchronous timeout from signalling any more.
|
|
|
1524 ID should be a timeout id number as returned by `add-async-timeout'. If ID
|
|
|
1525 corresponds to a one-shot timeout that has already signalled, nothing
|
|
|
1526 will happen.
|
|
|
1527
|
|
|
1528 It will not work to call this function on an id number returned by
|
|
|
1529 `add-timeout'. Use `disable-timeout' for that.
|
|
|
1530 */
|
|
|
1531 (id))
|
|
|
1532 {
|
|
|
1533 CHECK_INT (id);
|
|
|
1534 event_stream_disable_wakeup (XINT (id), 1);
|
|
|
1535 return Qnil;
|
|
|
1536 }
|
|
|
1537
|
|
|
1538
|
|
|
1539 /**********************************************************************/
|
|
|
1540 /* enqueuing and dequeuing events */
|
|
|
1541 /**********************************************************************/
|
|
|
1542
|
|
|
1543 /* Add an event to the back of the command-event queue: it will be the next
|
|
|
1544 event read after all pending events. This only works on keyboard,
|
|
|
1545 mouse-click, misc-user, and eval events.
|
|
|
1546 */
|
|
|
1547 static void
|
|
|
1548 enqueue_command_event (Lisp_Object event)
|
|
|
1549 {
|
|
|
1550 enqueue_event (event, &command_event_queue, &command_event_queue_tail);
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 static Lisp_Object
|
|
|
1554 dequeue_command_event (void)
|
|
|
1555 {
|
|
|
1556 return dequeue_event (&command_event_queue, &command_event_queue_tail);
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 /* put the event on the typeahead queue, unless
|
|
|
1560 the event is the quit char, in which case the `QUIT'
|
|
|
1561 which will occur on the next trip through this loop is
|
|
|
1562 all the processing we should do - leaving it on the queue
|
|
|
1563 would cause the quit to be processed twice.
|
|
|
1564 */
|
|
|
1565 static void
|
|
|
1566 enqueue_command_event_1 (Lisp_Object event_to_copy)
|
|
|
1567 {
|
|
|
1568 /* do not call check_quit() here. Vquit_flag was set in
|
|
|
1569 next_event_internal. */
|
|
|
1570 if (NILP (Vquit_flag))
|
|
|
1571 enqueue_command_event (Fcopy_event (event_to_copy, Qnil));
|
|
|
1572 }
|
|
|
1573
|
|
|
1574 void
|
|
|
1575 enqueue_magic_eval_event (void (*fun) (Lisp_Object), Lisp_Object object)
|
|
|
1576 {
|
|
|
1577 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
1578
|
|
|
1579 XEVENT (event)->event_type = magic_eval_event;
|
|
|
1580 /* channel for magic_eval events is nil */
|
|
|
1581 XEVENT (event)->event.magic_eval.internal_function = fun;
|
|
|
1582 XEVENT (event)->event.magic_eval.object = object;
|
|
|
1583 enqueue_command_event (event);
|
|
|
1584 }
|
|
|
1585
|
|
|
1586 DEFUN ("enqueue-eval-event", Fenqueue_eval_event, 2, 2, 0, /*
|
|
|
1587 Add an eval event to the back of the eval event queue.
|
|
|
1588 When this event is dispatched, FUNCTION (which should be a function
|
|
|
1589 of one argument) will be called with OBJECT as its argument.
|
|
|
1590 See `next-event' for a description of event types and how events
|
|
|
1591 are received.
|
|
|
1592 */
|
|
|
1593 (function, object))
|
|
|
1594 {
|
|
|
1595 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
1596
|
|
|
1597 XEVENT (event)->event_type = eval_event;
|
|
|
1598 /* channel for eval events is nil */
|
|
|
1599 XEVENT (event)->event.eval.function = function;
|
|
|
1600 XEVENT (event)->event.eval.object = object;
|
|
|
1601 enqueue_command_event (event);
|
|
|
1602
|
|
|
1603 return event;
|
|
|
1604 }
|
|
|
1605
|
|
|
1606 Lisp_Object
|
|
|
1607 enqueue_misc_user_event (Lisp_Object channel, Lisp_Object function,
|
|
|
1608 Lisp_Object object)
|
|
|
1609 {
|
|
|
1610 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
1611
|
|
|
1612 XEVENT (event)->event_type = misc_user_event;
|
|
|
1613 XEVENT (event)->channel = channel;
|
|
|
1614 XEVENT (event)->event.misc.function = function;
|
|
|
1615 XEVENT (event)->event.misc.object = object;
|
|
|
1616 XEVENT (event)->event.misc.button = 0;
|
|
|
1617 XEVENT (event)->event.misc.modifiers = 0;
|
|
|
1618 XEVENT (event)->event.misc.x = -1;
|
|
|
1619 XEVENT (event)->event.misc.y = -1;
|
|
|
1620 enqueue_command_event (event);
|
|
|
1621
|
|
|
1622 return event;
|
|
|
1623 }
|
|
|
1624
|
|
|
1625 Lisp_Object
|
|
|
1626 enqueue_misc_user_event_pos (Lisp_Object channel, Lisp_Object function,
|
|
|
1627 Lisp_Object object,
|
|
|
1628 int button, int modifiers, int x, int y)
|
|
|
1629 {
|
|
|
1630 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
1631
|
|
|
1632 XEVENT (event)->event_type = misc_user_event;
|
|
|
1633 XEVENT (event)->channel = channel;
|
|
|
1634 XEVENT (event)->event.misc.function = function;
|
|
|
1635 XEVENT (event)->event.misc.object = object;
|
|
|
1636 XEVENT (event)->event.misc.button = button;
|
|
|
1637 XEVENT (event)->event.misc.modifiers = modifiers;
|
|
|
1638 XEVENT (event)->event.misc.x = x;
|
|
|
1639 XEVENT (event)->event.misc.y = y;
|
|
|
1640 enqueue_command_event (event);
|
|
|
1641
|
|
|
1642 return event;
|
|
|
1643 }
|
|
|
1644
|
|
|
1645
|
|
|
1646 /**********************************************************************/
|
|
|
1647 /* focus-event handling */
|
|
|
1648 /**********************************************************************/
|
|
|
1649
|
|
|
1650 /*
|
|
|
1651
|
|
|
1652 Ben's capsule lecture on focus:
|
|
|
1653
|
|
|
1654 In FSFmacs `select-frame' never changes the window-manager frame
|
|
|
1655 focus. All it does is change the "selected frame". This is similar
|
|
|
1656 to what happens when we call `select-device' or `select-console'.
|
|
|
1657 Whenever an event comes in (including a keyboard event), its frame is
|
|
|
1658 selected; therefore, evaluating `select-frame' in *scratch* won't
|
|
|
1659 cause any effects because the next received event (in the same frame)
|
|
|
1660 will cause a switch back to the frame displaying *scratch*.
|
|
|
1661
|
|
|
1662 Whenever a focus-change event is received from the window manager, it
|
|
|
1663 generates a `switch-frame' event, which causes the Lisp function
|
|
|
1664 `handle-switch-frame' to get run. This basically just runs
|
|
|
1665 `select-frame' (see below, however).
|
|
|
1666
|
|
|
1667 In FSFmacs, if you want to have an operation run when a frame is
|
|
|
1668 selected, you supply an event binding for `switch-frame' (and then
|
|
|
1669 maybe call `handle-switch-frame', or something ...).
|
|
|
1670
|
|
|
1671 In XEmacs, we *do* change the window-manager frame focus as a result
|
|
|
1672 of `select-frame', but not until the next time an event is received,
|
|
|
1673 so that a function that momentarily changes the selected frame won't
|
|
|
1674 cause WM focus flashing. (#### There's something not quite right here;
|
|
|
1675 this is causing the wrong-cursor-focus problems that you occasionally
|
|
|
1676 see. But the general idea is correct.) This approach is winning for
|
|
|
1677 people who use the explicit-focus model, but is trickier to implement.
|
|
|
1678
|
|
|
1679 We also don't make the `switch-frame' event visible but instead have
|
|
|
1680 `select-frame-hook', which is a better approach.
|
|
|
1681
|
|
|
1682 There is the problem of surrogate minibuffers, where when we enter the
|
|
|
1683 minibuffer, you essentially want to temporarily switch the WM focus to
|
|
|
1684 the frame with the minibuffer, and switch it back when you exit the
|
|
|
1685 minibuffer.
|
|
|
1686
|
|
|
1687 FSFmacs solves this with the crockish `redirect-frame-focus', which
|
|
|
1688 says "for keyboard events received from FRAME, act like they're
|
|
|
1689 coming from FOCUS-FRAME". I think what this means is that, when
|
|
|
1690 a keyboard event comes in and the event manager is about to select the
|
|
|
1691 event's frame, if that frame has its focus redirected, the redirected-to
|
|
|
1692 frame is selected instead. That way, if you're in a minibufferless
|
|
|
1693 frame and enter the minibuffer, then all Lisp functions that run see
|
|
|
1694 the selected frame as the minibuffer's frame rather than the minibufferless
|
|
|
1695 frame you came from, so that (e.g.) your typing actually appears in
|
|
|
1696 the minibuffer's frame and things behave sanely.
|
|
|
1697
|
|
|
1698 There's also some weird logic that switches the redirected frame focus
|
|
|
1699 from one frame to another if Lisp code explicitly calls `select-frame'
|
|
|
1700 \(but not if `handle-switch-frame' is called), and saves and restores
|
|
|
1701 the frame focus in window configurations, etc. etc. All of this logic
|
|
|
1702 is heavily #if 0'd, with lots of comments saying "No, this approach
|
|
|
1703 doesn't seem to work, so I'm trying this ... is it reasonable?
|
|
|
1704 Well, I'm not sure ..." that are a red flag indicating crockishness.
|
|
|
1705
|
|
|
1706 Because of our way of doing things, we can avoid all this crock.
|
|
|
1707 Keyboard events never cause a select-frame (who cares what frame
|
|
|
1708 they're associated with? They come from a console, only). We change
|
|
|
1709 the actual WM focus to a surrogate minibuffer frame, so we don't have
|
|
|
1710 to do any internal redirection. In order to get the focus back,
|
|
|
1711 I took the approach in minibuf.el of just checking to see if the
|
|
|
1712 frame we moved to is still the selected frame, and move back to the
|
|
|
1713 old one if so. Conceivably we might have to do the weird "tracking"
|
|
|
1714 that FSFmacs does when `select-frame' is called, but I don't think
|
|
|
1715 so. If the selected frame moved from the minibuffer frame, then
|
|
|
1716 we just leave it there, figuring that someone knows what they're
|
|
|
1717 doing. Because we don't have any redirection recorded anywhere,
|
|
|
1718 it's safe to do this, and we don't end up with unwanted redirection.
|
|
|
1719
|
|
|
1720 */
|
|
|
1721
|
|
|
1722 static void
|
|
|
1723 run_select_frame_hook (void)
|
|
|
1724 {
|
|
|
1725 run_hook (Qselect_frame_hook);
|
|
|
1726 }
|
|
|
1727
|
|
|
1728 static void
|
|
|
1729 run_deselect_frame_hook (void)
|
|
|
1730 {
|
|
|
1731 #if 0 /* unclean! FSF calls this at all sorts of random places,
|
|
|
1732 including a bunch of places in their mouse.el. If this
|
|
|
1733 is implemented, it has to be done cleanly. */
|
|
|
1734 run_hook (Qmouse_leave_buffer_hook); /* #### Correct? It's also
|
|
|
1735 called in `call-interactively'.
|
|
|
1736 Does this mean it will be
|
|
|
1737 called twice? Oh well, FSF
|
|
|
1738 bug -- FSF calls it in
|
|
|
1739 `handle-switch-frame',
|
|
|
1740 which is approximately the
|
|
|
1741 same as the caller of this
|
|
|
1742 function. */
|
|
|
1743 #endif
|
|
|
1744 run_hook (Qdeselect_frame_hook);
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 /* When select-frame is called and focus_follows_mouse is false, we want
|
|
|
1748 to tell the window system that the focus should be changed to point to
|
|
|
1749 the new frame. However,
|
|
|
1750 sometimes Lisp functions will temporarily change the selected frame
|
|
|
1751 (e.g. to call a function that operates on the selected frame),
|
|
|
1752 and it's annoying if this focus-change happens exactly when
|
|
|
1753 select-frame is called, because then you get some flickering of the
|
|
|
1754 window-manager border and perhaps other undesirable results. We
|
|
|
1755 really only want to change the focus when we're about to retrieve
|
|
|
1756 an event from the user. To do this, we keep track of the frame
|
|
|
1757 where the window-manager focus lies on, and just before waiting
|
|
|
1758 for user events, check the currently selected frame and change
|
|
|
1759 the focus as necessary.
|
|
|
1760
|
|
|
1761 On the other hand, if focus_follows_mouse is true, we need to switch the
|
|
|
1762 selected frame back to the frame with window manager focus just before we
|
|
|
1763 execute the next command in Fcommand_loop_1, just as the selected buffer is
|
|
|
1764 reverted after a set-buffer.
|
|
|
1765
|
|
|
1766 Both cases are handled by this function. It must be called as appropriate
|
|
|
1767 from these two places, depending on the value of focus_follows_mouse. */
|
|
|
1768
|
|
|
1769 void
|
|
|
1770 investigate_frame_change (void)
|
|
|
1771 {
|
|
|
1772 Lisp_Object devcons, concons;
|
|
|
1773
|
|
|
1774 /* if the selected frame was changed, change the window-system
|
|
|
1775 focus to the new frame. We don't do it when select-frame was
|
|
|
1776 called, to avoid flickering and other unwanted side effects when
|
|
|
1777 the frame is just changed temporarily. */
|
|
|
1778 DEVICE_LOOP_NO_BREAK (devcons, concons)
|
|
|
1779 {
|
|
|
1780 struct device *d = XDEVICE (XCAR (devcons));
|
|
|
1781 Lisp_Object sel_frame = DEVICE_SELECTED_FRAME (d);
|
|
|
1782
|
|
|
1783 /* You'd think that maybe we should use FRAME_WITH_FOCUS_REAL,
|
|
|
1784 but that can cause us to end up in an infinite loop focusing
|
|
|
1785 between two frames. It seems that since the call to `select-frame'
|
|
|
1786 in emacs_handle_focus_change_final() is based on the _FOR_HOOKS
|
|
|
1787 value, we need to do so too. */
|
|
|
1788 if (!NILP (sel_frame) &&
|
|
|
1789 !EQ (DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS (d), sel_frame) &&
|
|
|
1790 !NILP (DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d)) &&
|
|
|
1791 !EQ (DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d), sel_frame))
|
|
|
1792 {
|
|
|
1793 /* At this point, we know that the frame has been changed. Now, if
|
|
|
1794 * focus_follows_mouse is not set, we finish off the frame change,
|
|
|
1795 * so that user events will now come from the new frame. Otherwise,
|
|
|
1796 * if focus_follows_mouse is set, no gratuitous frame changing
|
|
|
1797 * should take place. Set the focus back to the frame which was
|
|
|
1798 * originally selected for user input.
|
|
|
1799 */
|
|
|
1800 if (!focus_follows_mouse)
|
|
|
1801 {
|
|
|
1802 /* prevent us from issuing the same request more than once */
|
|
|
1803 DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS (d) = sel_frame;
|
|
|
1804 MAYBE_DEVMETH (d, focus_on_frame, (XFRAME (sel_frame)));
|
|
|
1805 }
|
|
|
1806 else
|
|
|
1807 {
|
|
|
1808 Lisp_Object old_frame = Qnil;
|
|
|
1809
|
|
|
1810 /* #### Do we really want to check OUGHT ??
|
|
|
1811 * It seems to make sense, though I have never seen us
|
|
|
1812 * get here and have it be non-nil.
|
|
|
1813 */
|
|
|
1814 if (FRAMEP (DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS (d)))
|
|
|
1815 old_frame = DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS (d);
|
|
|
1816 else if (FRAMEP (DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d)))
|
|
|
1817 old_frame = DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d);
|
|
|
1818
|
|
|
1819 /* #### Can old_frame ever be NIL? play it safe.. */
|
|
|
1820 if (!NILP (old_frame))
|
|
|
1821 {
|
|
|
1822 /* Fselect_frame is not really the right thing: it frobs the
|
|
|
1823 * buffer stack. But there's no easy way to do the right
|
|
|
1824 * thing, and this code already had this problem anyway.
|
|
|
1825 */
|
|
|
1826 Fselect_frame (old_frame);
|
|
|
1827 }
|
|
|
1828 }
|
|
|
1829 }
|
|
|
1830 }
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 static Lisp_Object
|
|
|
1834 cleanup_after_missed_defocusing (Lisp_Object frame)
|
|
|
1835 {
|
|
|
1836 if (FRAMEP (frame) && FRAME_LIVE_P (XFRAME (frame)))
|
|
|
1837 Fselect_frame (frame);
|
|
|
1838 return Qnil;
|
|
|
1839 }
|
|
|
1840
|
|
|
1841 void
|
|
|
1842 emacs_handle_focus_change_preliminary (Lisp_Object frame_inp_and_dev)
|
|
|
1843 {
|
|
|
1844 Lisp_Object frame = Fcar (frame_inp_and_dev);
|
|
|
1845 Lisp_Object device = Fcar (Fcdr (frame_inp_and_dev));
|
|
|
1846 int in_p = !NILP (Fcdr (Fcdr (frame_inp_and_dev)));
|
|
|
1847 struct device *d;
|
|
|
1848
|
|
|
1849 if (!DEVICE_LIVE_P (XDEVICE (device)))
|
|
|
1850 return;
|
|
|
1851 else
|
|
|
1852 d = XDEVICE (device);
|
|
|
1853
|
|
|
1854 /* Any received focus-change notifications render invalid any
|
|
|
1855 pending focus-change requests. */
|
|
|
1856 DEVICE_FRAME_THAT_OUGHT_TO_HAVE_FOCUS (d) = Qnil;
|
|
|
1857 if (in_p)
|
|
|
1858 {
|
|
|
1859 Lisp_Object focus_frame;
|
|
|
1860
|
|
|
1861 if (!FRAME_LIVE_P (XFRAME (frame)))
|
|
|
1862 return;
|
|
|
1863 else
|
|
|
1864 focus_frame = DEVICE_FRAME_WITH_FOCUS_REAL (d);
|
|
|
1865
|
|
|
1866 /* Mark the minibuffer as changed to make sure it gets updated
|
|
|
1867 properly if the echo area is active. */
|
|
|
1868 {
|
|
|
1869 struct window *w = XWINDOW (FRAME_MINIBUF_WINDOW (XFRAME (frame)));
|
|
|
1870 MARK_WINDOWS_CHANGED (w);
|
|
|
1871 }
|
|
|
1872
|
|
|
1873 if (FRAMEP (focus_frame) && !EQ (frame, focus_frame))
|
|
|
1874 {
|
|
|
1875 /* Oops, we missed a focus-out event. */
|
|
|
1876 DEVICE_FRAME_WITH_FOCUS_REAL (d) = Qnil;
|
|
|
1877 redisplay_redraw_cursor (XFRAME (focus_frame), 1);
|
|
|
1878 }
|
|
|
1879 DEVICE_FRAME_WITH_FOCUS_REAL (d) = frame;
|
|
|
1880 if (!EQ (frame, focus_frame))
|
|
|
1881 {
|
|
|
1882 redisplay_redraw_cursor (XFRAME (frame), 1);
|
|
|
1883 }
|
|
|
1884 }
|
|
|
1885 else
|
|
|
1886 {
|
|
|
1887 /* We ignore the frame reported in the event. If it's different
|
|
|
1888 from where we think the focus was, oh well -- we messed up.
|
|
|
1889 Nonetheless, we pretend we were right, for sensible behavior. */
|
|
|
1890 frame = DEVICE_FRAME_WITH_FOCUS_REAL (d);
|
|
|
1891 if (!NILP (frame))
|
|
|
1892 {
|
|
|
1893 DEVICE_FRAME_WITH_FOCUS_REAL (d) = Qnil;
|
|
|
1894
|
|
|
1895 if (FRAME_LIVE_P (XFRAME (frame)))
|
|
|
1896 redisplay_redraw_cursor (XFRAME (frame), 1);
|
|
|
1897 }
|
|
|
1898 }
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 /* Called from the window-system-specific code when we receive a
|
|
|
1902 notification that the focus lies on a particular frame.
|
|
|
1903 Argument is a cons: (frame . (device . in-p)) where in-p is non-nil
|
|
|
1904 for focus-in.
|
|
|
1905 */
|
|
|
1906 void
|
|
|
1907 emacs_handle_focus_change_final (Lisp_Object frame_inp_and_dev)
|
|
|
1908 {
|
|
|
1909 Lisp_Object frame = Fcar (frame_inp_and_dev);
|
|
|
1910 Lisp_Object device = Fcar (Fcdr (frame_inp_and_dev));
|
|
|
1911 int in_p = !NILP (Fcdr (Fcdr (frame_inp_and_dev)));
|
|
|
1912 struct device *d;
|
|
|
1913 int count;
|
|
|
1914
|
|
|
1915 if (!DEVICE_LIVE_P (XDEVICE (device)))
|
|
|
1916 return;
|
|
|
1917 else
|
|
|
1918 d = XDEVICE (device);
|
|
|
1919
|
|
|
1920 if (in_p)
|
|
|
1921 {
|
|
|
1922 Lisp_Object focus_frame;
|
|
|
1923
|
|
|
1924 if (!FRAME_LIVE_P (XFRAME (frame)))
|
|
|
1925 return;
|
|
|
1926 else
|
|
|
1927 focus_frame = DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d);
|
|
|
1928
|
|
|
1929 DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d) = frame;
|
|
|
1930 if (FRAMEP (focus_frame) && !EQ (frame, focus_frame))
|
|
|
1931 {
|
|
|
1932 /* Oops, we missed a focus-out event. */
|
|
|
1933 Fselect_frame (focus_frame);
|
|
|
1934 /* Do an unwind-protect in case an error occurs in
|
|
|
1935 the deselect-frame-hook */
|
|
|
1936 count = specpdl_depth ();
|
|
|
1937 record_unwind_protect (cleanup_after_missed_defocusing, frame);
|
|
|
1938 run_deselect_frame_hook ();
|
|
|
1939 unbind_to (count, Qnil);
|
|
|
1940 /* the cleanup method changed the focus frame to nil, so
|
|
|
1941 we need to reflect this */
|
|
|
1942 focus_frame = Qnil;
|
|
|
1943 }
|
|
|
1944 else
|
|
|
1945 Fselect_frame (frame);
|
|
|
1946 if (!EQ (frame, focus_frame))
|
|
|
1947 run_select_frame_hook ();
|
|
|
1948 }
|
|
|
1949 else
|
|
|
1950 {
|
|
|
1951 /* We ignore the frame reported in the event. If it's different
|
|
|
1952 from where we think the focus was, oh well -- we messed up.
|
|
|
1953 Nonetheless, we pretend we were right, for sensible behavior. */
|
|
|
1954 frame = DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d);
|
|
|
1955 if (!NILP (frame))
|
|
|
1956 {
|
|
|
1957 DEVICE_FRAME_WITH_FOCUS_FOR_HOOKS (d) = Qnil;
|
|
|
1958 run_deselect_frame_hook ();
|
|
|
1959 }
|
|
|
1960 }
|
|
|
1961 }
|
|
|
1962
|
|
|
1963
|
|
|
1964 /**********************************************************************/
|
|
|
1965 /* retrieving the next event */
|
|
|
1966 /**********************************************************************/
|
|
|
1967
|
|
|
1968 static int in_single_console;
|
|
|
1969
|
|
|
1970 /* #### These functions don't currently do anything. */
|
|
|
1971 void
|
|
|
1972 single_console_state (void)
|
|
|
1973 {
|
|
|
1974 in_single_console = 1;
|
|
|
1975 }
|
|
|
1976
|
|
|
1977 void
|
|
|
1978 any_console_state (void)
|
|
|
1979 {
|
|
|
1980 in_single_console = 0;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 int
|
|
|
1984 in_single_console_state (void)
|
|
|
1985 {
|
|
|
1986 return in_single_console;
|
|
|
1987 }
|
|
|
1988
|
|
|
1989 /* the number of keyboard characters read. callint.c wants this. */
|
|
|
1990 Charcount num_input_chars;
|
|
|
1991
|
|
|
1992 static void
|
|
|
1993 next_event_internal (Lisp_Object target_event, int allow_queued)
|
|
|
1994 {
|
|
|
1995 struct gcpro gcpro1;
|
|
|
1996 /* QUIT; This is incorrect - the caller must do this because some
|
|
|
1997 callers (ie, Fnext_event()) do not want to QUIT. */
|
|
|
1998
|
|
|
1999 assert (NILP (XEVENT_NEXT (target_event)));
|
|
|
2000
|
|
|
2001 GCPRO1 (target_event);
|
|
|
2002
|
|
|
2003 /* When focus_follows_mouse is nil, if a frame change took place, we need
|
|
|
2004 * to actually switch window manager focus to the selected window now.
|
|
|
2005 */
|
|
|
2006 if (!focus_follows_mouse)
|
|
|
2007 investigate_frame_change ();
|
|
|
2008
|
|
|
2009 if (allow_queued && !NILP (command_event_queue))
|
|
|
2010 {
|
|
|
2011 Lisp_Object event = dequeue_command_event ();
|
|
|
2012 Fcopy_event (event, target_event);
|
|
|
2013 Fdeallocate_event (event);
|
|
|
2014 DEBUG_PRINT_EMACS_EVENT ("command event queue", target_event);
|
|
|
2015 }
|
|
|
2016 else
|
|
|
2017 {
|
|
|
2018 struct Lisp_Event *e = XEVENT (target_event);
|
|
|
2019
|
|
|
2020 /* The command_event_queue was empty. Wait for an event. */
|
|
|
2021 event_stream_next_event (e);
|
|
|
2022 /* If this was a timeout, then we need to extract some data
|
|
|
2023 out of the returned closure and might need to resignal
|
|
|
2024 it. */
|
|
|
2025 if (e->event_type == timeout_event)
|
|
|
2026 {
|
|
|
2027 Lisp_Object tristan, isolde;
|
|
|
2028
|
|
|
2029 e->event.timeout.id_number =
|
|
|
2030 event_stream_resignal_wakeup (e->event.timeout.interval_id, 0,
|
|
|
2031 &tristan, &isolde);
|
|
|
2032
|
|
|
2033 e->event.timeout.function = tristan;
|
|
|
2034 e->event.timeout.object = isolde;
|
|
|
2035 /* next_event_internal() doesn't print out timeout events
|
|
|
2036 because of the extra info we just set. */
|
|
|
2037 DEBUG_PRINT_EMACS_EVENT ("real, timeout", target_event);
|
|
|
2038 }
|
|
|
2039
|
|
|
2040 /* If we read a ^G, then set quit-flag but do not discard the ^G.
|
|
|
2041 The callers of next_event_internal() will do one of two things:
|
|
|
2042
|
|
|
2043 -- set Vquit_flag to Qnil. (next-event does this.) This will
|
|
|
2044 cause the ^G to be treated as a normal keystroke.
|
|
|
2045 -- not change Vquit_flag but attempt to enqueue the ^G, at
|
|
|
2046 which point it will be discarded. The next time QUIT is
|
|
|
2047 called, it will notice that Vquit_flag was set.
|
|
|
2048
|
|
|
2049 */
|
|
|
2050 if (e->event_type == key_press_event &&
|
|
|
2051 event_matches_key_specifier_p
|
|
|
2052 (e, make_char (CONSOLE_QUIT_CHAR (XCONSOLE (EVENT_CHANNEL (e))))))
|
|
|
2053 {
|
|
|
2054 Vquit_flag = Qt;
|
|
|
2055 }
|
|
|
2056 }
|
|
|
2057
|
|
|
2058 UNGCPRO;
|
|
|
2059 }
|
|
|
2060
|
|
|
2061 static void
|
|
|
2062 run_pre_idle_hook (void)
|
|
|
2063 {
|
|
|
2064 if (!NILP (Vpre_idle_hook)
|
|
|
2065 && !detect_input_pending ())
|
|
|
2066 safe_run_hook_trapping_errors
|
|
|
2067 ("Error in `pre-idle-hook' (setting hook to nil)",
|
|
|
2068 Qpre_idle_hook, 1);
|
|
|
2069 }
|
|
|
2070
|
|
|
2071 static void push_this_command_keys (Lisp_Object event);
|
|
|
2072 static void push_recent_keys (Lisp_Object event);
|
|
|
2073 static void dribble_out_event (Lisp_Object event);
|
|
|
2074 static void execute_internal_event (Lisp_Object event);
|
|
|
2075
|
|
|
2076 DEFUN ("next-event", Fnext_event, 0, 2, 0, /*
|
|
|
2077 Return the next available event.
|
|
|
2078 Pass this object to `dispatch-event' to handle it.
|
|
|
2079 In most cases, you will want to use `next-command-event', which returns
|
|
|
2080 the next available "user" event (i.e. keypress, button-press,
|
|
|
2081 button-release, or menu selection) instead of this function.
|
|
|
2082
|
|
|
2083 If EVENT is non-nil, it should be an event object and will be filled in
|
|
|
2084 and returned; otherwise a new event object will be created and returned.
|
|
|
2085 If PROMPT is non-nil, it should be a string and will be displayed in the
|
|
|
2086 echo area while this function is waiting for an event.
|
|
|
2087
|
|
|
2088 The next available event will be
|
|
|
2089
|
|
|
2090 -- any events in `unread-command-events' or `unread-command-event'; else
|
|
|
2091 -- the next event in the currently executing keyboard macro, if any; else
|
|
|
2092 -- an event queued by `enqueue-eval-event', if any; else
|
|
|
2093 -- the next available event from the window system or terminal driver.
|
|
|
2094
|
|
|
2095 In the last case, this function will block until an event is available.
|
|
|
2096
|
|
|
2097 The returned event will be one of the following types:
|
|
|
2098
|
|
|
2099 -- a key-press event.
|
|
|
2100 -- a button-press or button-release event.
|
|
|
2101 -- a misc-user-event, meaning the user selected an item on a menu or used
|
|
|
2102 the scrollbar.
|
|
|
2103 -- a process event, meaning that output from a subprocess is available.
|
|
|
2104 -- a timeout event, meaning that a timeout has elapsed.
|
|
|
2105 -- an eval event, which simply causes a function to be executed when the
|
|
|
2106 event is dispatched. Eval events are generated by `enqueue-eval-event'
|
|
|
2107 or by certain other conditions happening.
|
|
|
2108 -- a magic event, indicating that some window-system-specific event
|
|
|
2109 happened (such as a focus-change notification) that must be handled
|
|
|
2110 synchronously with other events. `dispatch-event' knows what to do with
|
|
|
2111 these events.
|
|
|
2112 */
|
|
|
2113 (event, prompt))
|
|
|
2114 {
|
|
|
2115 /* This function can call lisp */
|
|
|
2116 /* #### We start out using the selected console before an event
|
|
|
2117 is received, for echoing the partially completed command.
|
|
|
2118 This is most definitely wrong -- there needs to be a separate
|
|
|
2119 echo area for each console! */
|
|
|
2120 struct console *con = XCONSOLE (Vselected_console);
|
|
|
2121 struct command_builder *command_builder =
|
|
|
2122 XCOMMAND_BUILDER (con->command_builder);
|
|
|
2123 int store_this_key = 0;
|
|
|
2124 struct gcpro gcpro1;
|
|
|
2125 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
2126 extern int in_menu_callback; /* defined in menubar-x.c */
|
|
|
2127 #endif /* LWLIB_MENUBARS_LUCID */
|
|
|
2128
|
|
|
2129 GCPRO1 (event);
|
|
|
2130 /* DO NOT do QUIT anywhere within this function or the functions it calls.
|
|
|
2131 We want to read the ^G as an event. */
|
|
|
2132
|
|
|
2133 #ifdef LWLIB_MENUBARS_LUCID
|
|
|
2134 /*
|
|
|
2135 * #### Fix the menu code so this isn't necessary.
|
|
|
2136 *
|
|
|
2137 * We cannot allow the lwmenu code to be reentered, because the
|
|
|
2138 * code is not written to be reentrant and will crash. Therefore
|
|
|
2139 * paths from the menu callbacks back into the menu code have to
|
|
|
2140 * be blocked. Fnext_event is the normal path into the menu code,
|
|
|
2141 * so we signal an error here.
|
|
|
2142 */
|
|
|
2143 if (in_menu_callback)
|
|
|
2144 error ("Attempt to call next-event inside menu callback");
|
|
|
2145 #endif /* LWLIB_MENUBARS_LUCID */
|
|
|
2146
|
|
|
2147 if (NILP (event))
|
|
|
2148 event = Fmake_event (Qnil, Qnil);
|
|
|
2149 else
|
|
|
2150 CHECK_LIVE_EVENT (event);
|
|
|
2151
|
|
|
2152 if (!NILP (prompt))
|
|
|
2153 {
|
|
|
2154 Bytecount len;
|
|
|
2155 CHECK_STRING (prompt);
|
|
|
2156
|
|
|
2157 len = XSTRING_LENGTH (prompt);
|
|
|
2158 if (command_builder->echo_buf_length < len)
|
|
|
2159 len = command_builder->echo_buf_length - 1;
|
|
|
2160 memcpy (command_builder->echo_buf, XSTRING_DATA (prompt), len);
|
|
|
2161 command_builder->echo_buf[len] = 0;
|
|
|
2162 command_builder->echo_buf_index = len;
|
|
|
2163 echo_area_message (XFRAME (CONSOLE_SELECTED_FRAME (con)),
|
|
|
2164 command_builder->echo_buf,
|
|
|
2165 Qnil, 0,
|
|
|
2166 command_builder->echo_buf_index,
|
|
|
2167 Qcommand);
|
|
|
2168 }
|
|
|
2169
|
|
|
2170 start_over_and_avoid_hosage:
|
|
|
2171
|
|
|
2172 /* If there is something in unread-command-events, simply return it.
|
|
|
2173 But do some error checking to make sure the user hasn't put something
|
|
|
2174 in the unread-command-events that they shouldn't have.
|
|
|
2175 This does not update this-command-keys and recent-keys.
|
|
|
2176 */
|
|
|
2177 if (!NILP (Vunread_command_events))
|
|
|
2178 {
|
|
|
2179 if (!CONSP (Vunread_command_events))
|
|
|
2180 {
|
|
|
2181 Vunread_command_events = Qnil;
|
|
|
2182 signal_error (Qwrong_type_argument,
|
|
|
2183 list3 (Qconsp, Vunread_command_events,
|
|
|
2184 Qunread_command_events));
|
|
|
2185 }
|
|
|
2186 else
|
|
|
2187 {
|
|
|
2188 Lisp_Object e = XCAR (Vunread_command_events);
|
|
|
2189 Vunread_command_events = XCDR (Vunread_command_events);
|
|
|
2190 if (!EVENTP (e) || !command_event_p (e))
|
|
|
2191 signal_error (Qwrong_type_argument,
|
|
|
2192 list3 (Qcommand_event_p, e, Qunread_command_events));
|
|
|
2193 redisplay ();
|
|
|
2194 if (!EQ (e, event))
|
|
|
2195 Fcopy_event (e, event);
|
|
|
2196 DEBUG_PRINT_EMACS_EVENT ("unread-command-events", event);
|
|
|
2197 }
|
|
|
2198 }
|
|
|
2199
|
|
|
2200 /* Do similar for unread-command-event (obsoleteness support). */
|
|
|
2201 else if (!NILP (Vunread_command_event))
|
|
|
2202 {
|
|
|
2203 Lisp_Object e = Vunread_command_event;
|
|
|
2204 Vunread_command_event = Qnil;
|
|
|
2205
|
|
|
2206 if (!EVENTP (e) || !command_event_p (e))
|
|
|
2207 {
|
|
|
2208 signal_error (Qwrong_type_argument,
|
|
|
2209 list3 (Qeventp, e, Qunread_command_event));
|
|
|
2210 }
|
|
|
2211 if (!EQ (e, event))
|
|
|
2212 Fcopy_event (e, event);
|
|
|
2213 redisplay ();
|
|
|
2214 DEBUG_PRINT_EMACS_EVENT ("unread-command-event", event);
|
|
|
2215 }
|
|
|
2216
|
|
|
2217 /* If we're executing a keyboard macro, take the next event from that,
|
|
|
2218 and update this-command-keys and recent-keys.
|
|
|
2219 Note that the unread-command-events take precedence over kbd macros.
|
|
|
2220 */
|
|
|
2221 else
|
|
|
2222 {
|
|
|
2223 if (!NILP (Vexecuting_macro))
|
|
|
2224 {
|
|
|
2225 redisplay ();
|
|
|
2226 pop_kbd_macro_event (event); /* This throws past us at
|
|
|
2227 end-of-macro. */
|
|
|
2228 store_this_key = 1;
|
|
|
2229 DEBUG_PRINT_EMACS_EVENT ("keyboard macro", event);
|
|
|
2230 }
|
|
|
2231 /* Otherwise, read a real event, possibly from the
|
|
|
2232 command_event_queue, and update this-command-keys and
|
|
|
2233 recent-keys. */
|
|
|
2234 else
|
|
|
2235 {
|
|
|
2236 run_pre_idle_hook ();
|
|
|
2237 redisplay ();
|
|
|
2238 next_event_internal (event, 1);
|
|
|
2239 Vquit_flag = Qnil; /* Read C-g as an event. */
|
|
|
2240 store_this_key = 1;
|
|
|
2241 }
|
|
|
2242 }
|
|
|
2243
|
|
|
2244 status_notify (); /* Notice process change */
|
|
|
2245
|
|
|
2246 #ifdef C_ALLOCA
|
|
|
2247 alloca (0); /* Cause a garbage collection now */
|
|
|
2248 /* Since we can free the most stuff here
|
|
|
2249 * (since this is typically called from
|
|
|
2250 * the command-loop top-level). */
|
|
|
2251 #endif /* C_ALLOCA */
|
|
|
2252
|
|
|
2253 if (object_dead_p (XEVENT (event)->channel))
|
|
|
2254 /* event_console_or_selected may crash if the channel is dead.
|
|
|
2255 Best just to eat it and get the next event. */
|
|
|
2256 goto start_over_and_avoid_hosage;
|
|
|
2257
|
|
|
2258 /* OK, now we can stop the selected-console kludge and use the
|
|
|
2259 actual console from the event. */
|
|
|
2260 con = event_console_or_selected (event);
|
|
|
2261 command_builder = XCOMMAND_BUILDER (con->command_builder);
|
|
|
2262
|
|
|
2263 switch (XEVENT_TYPE (event))
|
|
|
2264 {
|
|
|
2265 default:
|
|
|
2266 goto RETURN;
|
|
|
2267 case button_release_event:
|
|
|
2268 case misc_user_event:
|
|
|
2269 /* don't echo menu accelerator keys */
|
|
|
2270 reset_key_echo (command_builder, 1);
|
|
|
2271 goto EXECUTE_KEY;
|
|
|
2272 case button_press_event: /* key or mouse input can trigger prompting */
|
|
|
2273 goto STORE_AND_EXECUTE_KEY;
|
|
|
2274 case key_press_event: /* any key input can trigger autosave */
|
|
|
2275 break;
|
|
|
2276 }
|
|
|
2277
|
|
|
2278 maybe_do_auto_save ();
|
|
|
2279 num_input_chars++;
|
|
|
2280 STORE_AND_EXECUTE_KEY:
|
|
|
2281 if (store_this_key)
|
|
|
2282 {
|
|
|
2283 echo_key_event (command_builder, event);
|
|
|
2284 }
|
|
|
2285
|
|
|
2286 EXECUTE_KEY:
|
|
|
2287 /* Store the last-input-event. The semantics of this is that it is
|
|
|
2288 the thing most recently returned by next-command-event. It need
|
|
|
2289 not have come from the keyboard or a keyboard macro, it may have
|
|
|
2290 come from unread-command-events. It's always a command-event (a
|
|
|
2291 key, click, or menu selection), never a motion or process event.
|
|
|
2292 */
|
|
|
2293 if (!EVENTP (Vlast_input_event))
|
|
|
2294 Vlast_input_event = Fmake_event (Qnil, Qnil);
|
|
|
2295 if (XEVENT_TYPE (Vlast_input_event) == dead_event)
|
|
|
2296 {
|
|
|
2297 Vlast_input_event = Fmake_event (Qnil, Qnil);
|
|
|
2298 error ("Someone deallocated last-input-event!");
|
|
|
2299 }
|
|
|
2300 if (! EQ (event, Vlast_input_event))
|
|
|
2301 Fcopy_event (event, Vlast_input_event);
|
|
|
2302
|
|
|
2303 /* last-input-char and last-input-time are derived from
|
|
|
2304 last-input-event.
|
|
|
2305 Note that last-input-char will never have its high-bit set, in an
|
|
|
2306 effort to sidestep the ambiguity between M-x and oslash.
|
|
|
2307 */
|
|
|
2308 Vlast_input_char = Fevent_to_character (Vlast_input_event,
|
|
|
2309 Qnil, Qnil, Qnil);
|
|
|
2310 {
|
|
|
2311 EMACS_TIME t;
|
|
|
2312 EMACS_GET_TIME (t);
|
|
|
2313 if (!CONSP (Vlast_input_time))
|
|
|
2314 Vlast_input_time = Fcons (Qnil, Qnil);
|
|
|
2315 XCAR (Vlast_input_time) = make_int ((EMACS_SECS (t) >> 16) & 0xffff);
|
|
|
2316 XCDR (Vlast_input_time) = make_int ((EMACS_SECS (t) >> 0) & 0xffff);
|
|
|
2317 if (!CONSP (Vlast_command_event_time))
|
|
|
2318 Vlast_command_event_time = list3 (Qnil, Qnil, Qnil);
|
|
|
2319 XCAR (Vlast_command_event_time) =
|
|
|
2320 make_int ((EMACS_SECS (t) >> 16) & 0xffff);
|
|
|
2321 XCAR (XCDR (Vlast_command_event_time)) =
|
|
|
2322 make_int ((EMACS_SECS (t) >> 0) & 0xffff);
|
|
|
2323 XCAR (XCDR (XCDR (Vlast_command_event_time)))
|
|
|
2324 = make_int (EMACS_USECS (t));
|
|
|
2325 }
|
|
|
2326 /* If this key came from the keyboard or from a keyboard macro, then
|
|
|
2327 it goes into the recent-keys and this-command-keys vectors.
|
|
|
2328 If this key came from the keyboard, and we're defining a keyboard
|
|
|
2329 macro, then it goes into the macro.
|
|
|
2330 */
|
|
|
2331 if (store_this_key)
|
|
|
2332 {
|
|
|
2333 push_this_command_keys (event);
|
|
|
2334 if (!inhibit_input_event_recording)
|
|
|
2335 push_recent_keys (event);
|
|
|
2336 dribble_out_event (event);
|
|
|
2337 if (!NILP (con->defining_kbd_macro) && NILP (Vexecuting_macro))
|
|
|
2338 {
|
|
|
2339 if (!EVENTP (command_builder->current_events))
|
|
|
2340 finalize_kbd_macro_chars (con);
|
|
|
2341 store_kbd_macro_event (event);
|
|
|
2342 }
|
|
|
2343 }
|
|
|
2344 /* If this is the help char and there is a help form, then execute the
|
|
|
2345 help form and swallow this character. This is the only place where
|
|
|
2346 calling Fnext_event() can cause arbitrary lisp code to run. Note
|
|
|
2347 that execute_help_form() calls Fnext_command_event(), which calls
|
|
|
2348 this function, as well as Fdispatch_event.
|
|
|
2349 */
|
|
|
2350 if (!NILP (Vhelp_form) &&
|
|
|
2351 event_matches_key_specifier_p (XEVENT (event), Vhelp_char))
|
|
|
2352 execute_help_form (command_builder, event);
|
|
|
2353
|
|
|
2354 RETURN:
|
|
|
2355 UNGCPRO;
|
|
|
2356 return event;
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 DEFUN ("next-command-event", Fnext_command_event, 0, 2, 0, /*
|
|
|
2360 Return the next available "user" event.
|
|
|
2361 Pass this object to `dispatch-event' to handle it.
|
|
|
2362
|
|
|
2363 If EVENT is non-nil, it should be an event object and will be filled in
|
|
|
2364 and returned; otherwise a new event object will be created and returned.
|
|
|
2365 If PROMPT is non-nil, it should be a string and will be displayed in the
|
|
|
2366 echo area while this function is waiting for an event.
|
|
|
2367
|
|
|
2368 The event returned will be a keyboard, mouse press, or mouse release event.
|
|
|
2369 If there are non-command events available (mouse motion, sub-process output,
|
|
|
2370 etc) then these will be executed (with `dispatch-event') and discarded. This
|
|
|
2371 function is provided as a convenience; it is roughly equivalent to the lisp code
|
|
|
2372
|
|
|
2373 (while (progn
|
|
|
2374 (next-event event prompt)
|
|
|
2375 (not (or (key-press-event-p event)
|
|
|
2376 (button-press-event-p event)
|
|
|
2377 (button-release-event-p event)
|
|
|
2378 (misc-user-event-p event))))
|
|
|
2379 (dispatch-event event))
|
|
|
2380
|
|
|
2381 but it also makes a provision for displaying keystrokes in the echo area.
|
|
|
2382 */
|
|
|
2383 (event, prompt))
|
|
|
2384 {
|
|
|
2385 /* This function can GC */
|
|
|
2386 struct gcpro gcpro1;
|
|
|
2387 GCPRO1 (event);
|
|
|
2388 maybe_echo_keys (XCOMMAND_BUILDER
|
|
|
2389 (XCONSOLE (Vselected_console)->
|
|
|
2390 command_builder), 0); /* #### This sucks bigtime */
|
|
|
2391 for (;;)
|
|
|
2392 {
|
|
|
2393 event = Fnext_event (event, prompt);
|
|
|
2394 if (command_event_p (event))
|
|
|
2395 break;
|
|
|
2396 else
|
|
|
2397 execute_internal_event (event);
|
|
|
2398 }
|
|
|
2399 UNGCPRO;
|
|
|
2400 return event;
|
|
|
2401 }
|
|
|
2402
|
|
|
2403 static void
|
|
|
2404 reset_current_events (struct command_builder *command_builder)
|
|
|
2405 {
|
|
|
2406 Lisp_Object event = command_builder->current_events;
|
|
|
2407 reset_command_builder_event_chain (command_builder);
|
|
|
2408 if (EVENTP (event))
|
|
|
2409 deallocate_event_chain (event);
|
|
|
2410 }
|
|
|
2411
|
|
|
2412 DEFUN ("discard-input", Fdiscard_input, 0, 0, 0, /*
|
|
|
2413 Discard any pending "user" events.
|
|
|
2414 Also cancel any kbd macro being defined.
|
|
|
2415 A user event is a key press, button press, button release, or
|
|
|
2416 "misc-user" event (menu selection or scrollbar action).
|
|
|
2417 */
|
|
|
2418 ())
|
|
|
2419 {
|
|
|
2420 /* This throws away user-input on the queue, but doesn't process any
|
|
|
2421 events. Calling dispatch_event() here leads to a race condition.
|
|
|
2422 */
|
|
|
2423 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
2424 Lisp_Object head = Qnil, tail = Qnil;
|
|
|
2425 Lisp_Object oiq = Vinhibit_quit;
|
|
|
2426 struct gcpro gcpro1, gcpro2;
|
|
|
2427 /* #### not correct here with Vselected_console? Should
|
|
|
2428 discard-input take a console argument, or maybe map over
|
|
|
2429 all consoles? */
|
|
|
2430 struct console *con = XCONSOLE (Vselected_console);
|
|
|
2431
|
|
|
2432 /* next_event_internal() can cause arbitrary Lisp code to be evalled */
|
|
|
2433 GCPRO2 (event, oiq);
|
|
|
2434 Vinhibit_quit = Qt;
|
|
|
2435 /* If a macro was being defined then we have to mark the modeline
|
|
|
2436 has changed to ensure that it gets updated correctly. */
|
|
|
2437 if (!NILP (con->defining_kbd_macro))
|
|
|
2438 MARK_MODELINE_CHANGED;
|
|
|
2439 con->defining_kbd_macro = Qnil;
|
|
|
2440 reset_current_events (XCOMMAND_BUILDER (con->command_builder));
|
|
|
2441
|
|
|
2442 while (!NILP (command_event_queue)
|
|
|
2443 || event_stream_event_pending_p (1))
|
|
|
2444 {
|
|
|
2445 /* This will take stuff off the command_event_queue, or read it
|
|
|
2446 from the event_stream, but it will not block.
|
|
|
2447 */
|
|
|
2448 next_event_internal (event, 1);
|
|
|
2449 Vquit_flag = Qnil; /* Treat C-g as a user event (ignore it).
|
|
|
2450 It is vitally important that we reset
|
|
|
2451 Vquit_flag here. Otherwise, if we're
|
|
|
2452 reading from a TTY console,
|
|
|
2453 maybe_read_quit_event() will notice
|
|
|
2454 that C-g has been set and send us
|
|
|
2455 another C-g. That will cause us
|
|
|
2456 to get right back here, and read
|
|
|
2457 another C-g, ad infinitum ... */
|
|
|
2458
|
|
|
2459 /* If the event is a user event, ignore it. */
|
|
|
2460 if (!command_event_p (event))
|
|
|
2461 {
|
|
|
2462 /* Otherwise, chain the event onto our list of events not to ignore,
|
|
|
2463 and keep reading until the queue is empty. This does not mean
|
|
|
2464 that if a subprocess is generating an infinite amount of output,
|
|
|
2465 we will never terminate (*provided* that the behavior of
|
|
|
2466 next_event_cb() is correct -- see the comment in events.h),
|
|
|
2467 because this loop ends as soon as there are no more user events
|
|
|
2468 on the command_event_queue or event_stream.
|
|
|
2469 */
|
|
|
2470 enqueue_event (Fcopy_event (event, Qnil), &head, &tail);
|
|
|
2471 }
|
|
|
2472 }
|
|
|
2473
|
|
|
2474 if (!NILP (command_event_queue) || !NILP (command_event_queue_tail))
|
|
|
2475 abort ();
|
|
|
2476
|
|
|
2477 /* Now tack our chain of events back on to the front of the queue.
|
|
|
2478 Actually, since the queue is now drained, we can just replace it.
|
|
|
2479 The effect of this will be that we have deleted all user events
|
|
|
2480 from the input stream without changing the relative ordering of
|
|
|
2481 any other events. (Some events may have been taken from the
|
|
|
2482 event_stream and added to the command_event_queue, however.)
|
|
|
2483
|
|
|
2484 At this time, the command_event_queue will contain only eval_events.
|
|
|
2485 */
|
|
|
2486
|
|
|
2487 command_event_queue = head;
|
|
|
2488 command_event_queue_tail = tail;
|
|
|
2489
|
|
|
2490 Fdeallocate_event (event);
|
|
|
2491 UNGCPRO;
|
|
|
2492
|
|
|
2493 Vinhibit_quit = oiq;
|
|
|
2494 return Qnil;
|
|
|
2495 }
|
|
|
2496
|
|
|
2497
|
|
|
2498 /**********************************************************************/
|
|
|
2499 /* pausing until an action occurs */
|
|
|
2500 /**********************************************************************/
|
|
|
2501
|
|
|
2502 /* This is used in accept-process-output, sleep-for and sit-for.
|
|
|
2503 Before running any process_events in these routines, we set
|
|
|
2504 recursive_sit_for to Qt, and use this unwind protect to reset it to
|
|
|
2505 Qnil upon exit. When recursive_sit_for is Qt, calling sit-for will
|
|
|
2506 cause it to return immediately.
|
|
|
2507
|
|
|
2508 All of these routines install timeouts, so we clear the installed
|
|
|
2509 timeout as well.
|
|
|
2510
|
|
|
2511 Note: It's very easy to break the desired behaviors of these
|
|
|
2512 3 routines. If you make any changes to anything in this area, run
|
|
|
2513 the regression tests at the bottom of the file. -- dmoore */
|
|
|
2514
|
|
|
2515
|
|
|
2516 static Lisp_Object
|
|
|
2517 sit_for_unwind (Lisp_Object timeout_id)
|
|
|
2518 {
|
|
|
2519 if (!NILP(timeout_id))
|
|
|
2520 Fdisable_timeout (timeout_id);
|
|
|
2521
|
|
|
2522 recursive_sit_for = Qnil;
|
|
|
2523 return Qnil;
|
|
|
2524 }
|
|
|
2525
|
|
|
2526 /* #### Is (accept-process-output nil 3) supposed to be like (sleep-for 3)?
|
|
|
2527 */
|
|
|
2528
|
|
|
2529 DEFUN ("accept-process-output", Faccept_process_output, 0, 3, 0, /*
|
|
|
2530 Allow any pending output from subprocesses to be read by Emacs.
|
|
|
2531 It is read into the process' buffers or given to their filter functions.
|
|
|
2532 Non-nil arg PROCESS means do not return until some output has been received
|
|
|
2533 from PROCESS. Nil arg PROCESS means do not return until some output has
|
|
|
2534 been received from any process.
|
|
|
2535 If the second arg is non-nil, it is the maximum number of seconds to wait:
|
|
|
2536 this function will return after that much time even if no input has arrived
|
|
|
2537 from PROCESS. This argument may be a float, meaning wait some fractional
|
|
|
2538 part of a second.
|
|
|
2539 If the third arg is non-nil, it is a number of milliseconds that is added
|
|
|
2540 to the second arg. (This exists only for compatibility.)
|
|
|
2541 Return non-nil iff we received any output before the timeout expired.
|
|
|
2542 */
|
|
|
2543 (process, timeout_secs, timeout_msecs))
|
|
|
2544 {
|
|
|
2545 /* This function can GC */
|
|
|
2546 struct gcpro gcpro1, gcpro2;
|
|
|
2547 Lisp_Object event = Qnil;
|
|
|
2548 Lisp_Object result = Qnil;
|
|
|
2549 int timeout_id = -1;
|
|
|
2550 int timeout_enabled = 0;
|
|
|
2551 int done = 0;
|
|
|
2552 struct buffer *old_buffer = current_buffer;
|
|
|
2553 int count;
|
|
|
2554
|
|
|
2555 /* We preserve the current buffer but nothing else. If a focus
|
|
|
2556 change alters the selected window then the top level event loop
|
|
|
2557 will eventually alter current_buffer to match. In the mean time
|
|
|
2558 we don't want to mess up whatever called this function. */
|
|
|
2559
|
|
|
2560 if (!NILP (process))
|
|
|
2561 CHECK_PROCESS (process);
|
|
|
2562
|
|
|
2563 GCPRO2 (event, process);
|
|
|
2564
|
|
|
2565 if (!NILP (timeout_secs) || !NILP (timeout_msecs))
|
|
|
2566 {
|
|
|
2567 unsigned long msecs = 0;
|
|
|
2568 if (!NILP (timeout_secs))
|
|
|
2569 msecs = lisp_number_to_milliseconds (timeout_secs, 1);
|
|
|
2570 if (!NILP (timeout_msecs))
|
|
|
2571 {
|
|
|
2572 CHECK_NATNUM (timeout_msecs);
|
|
|
2573 msecs += XINT (timeout_msecs);
|
|
|
2574 }
|
|
|
2575 if (msecs)
|
|
|
2576 {
|
|
|
2577 timeout_id = event_stream_generate_wakeup (msecs, 0, Qnil, Qnil, 0);
|
|
|
2578 timeout_enabled = 1;
|
|
|
2579 }
|
|
|
2580 }
|
|
|
2581
|
|
|
2582 event = Fmake_event (Qnil, Qnil);
|
|
|
2583
|
|
|
2584 count = specpdl_depth ();
|
|
|
2585 record_unwind_protect (sit_for_unwind,
|
|
|
2586 timeout_enabled ? make_int (timeout_id) : Qnil);
|
|
|
2587 recursive_sit_for = Qt;
|
|
|
2588
|
|
|
2589 while (!done &&
|
|
|
2590 ((NILP (process) && timeout_enabled) ||
|
|
|
2591 (NILP (process) && event_stream_event_pending_p (0)) ||
|
|
|
2592 (!NILP (process))))
|
|
|
2593 /* Calling detect_input_pending() is the wrong thing here, because
|
|
|
2594 that considers the Vunread_command_events and command_event_queue.
|
|
|
2595 We don't need to look at the command_event_queue because we are
|
|
|
2596 only interested in process events, which don't go on that. In
|
|
|
2597 fact, we can't read from it anyway, because we put stuff on it.
|
|
|
2598
|
|
|
2599 Note that event_stream->event_pending_p must be called in such
|
|
|
2600 a way that it says whether any events *of any kind* are ready,
|
|
|
2601 not just user events, or (accept-process-output nil) will fail
|
|
|
2602 to dispatch any process events that may be on the queue. It is
|
|
|
2603 not clear to me that this is important, because the top-level
|
|
|
2604 loop will process it, and I don't think that there is ever a
|
|
|
2605 time when one calls accept-process-output with a nil argument
|
|
|
2606 and really need the processes to be handled. */
|
|
|
2607 {
|
|
|
2608 /* If our timeout has arrived, we move along. */
|
|
|
2609 if (timeout_enabled && !event_stream_wakeup_pending_p (timeout_id, 0))
|
|
|
2610 {
|
|
|
2611 timeout_enabled = 0;
|
|
|
2612 done = 1; /* We're done. */
|
|
|
2613 continue; /* Don't call next_event_internal */
|
|
|
2614 }
|
|
|
2615
|
|
|
2616 QUIT; /* next_event_internal() does not QUIT, so check for ^G
|
|
|
2617 before reading output from the process - this makes it
|
|
|
2618 less likely that the filter will actually be aborted.
|
|
|
2619 */
|
|
|
2620
|
|
|
2621 next_event_internal (event, 0);
|
|
|
2622 /* If C-g was pressed while we were waiting, Vquit_flag got
|
|
|
2623 set and next_event_internal() also returns C-g. When
|
|
|
2624 we enqueue the C-g below, it will get discarded. The
|
|
|
2625 next time through, QUIT will be called and will signal a quit. */
|
|
|
2626 switch (XEVENT_TYPE (event))
|
|
|
2627 {
|
|
|
2628 case process_event:
|
|
|
2629 {
|
|
|
2630 if (NILP (process) ||
|
|
|
2631 EQ (XEVENT (event)->event.process.process, process))
|
|
|
2632 {
|
|
|
2633 done = 1;
|
|
|
2634 /* RMS's version always returns nil when proc is nil,
|
|
|
2635 and only returns t if input ever arrived on proc. */
|
|
|
2636 result = Qt;
|
|
|
2637 }
|
|
|
2638
|
|
|
2639 execute_internal_event (event);
|
|
|
2640 break;
|
|
|
2641 }
|
|
|
2642 case timeout_event:
|
|
|
2643 /* We execute the event even if it's ours, and notice that it's
|
|
|
2644 happened above. */
|
|
|
2645 case pointer_motion_event:
|
|
|
2646 case magic_event:
|
|
|
2647 {
|
|
|
2648 execute_internal_event (event);
|
|
|
2649 break;
|
|
|
2650 }
|
|
|
2651 default:
|
|
|
2652 {
|
|
|
2653 enqueue_command_event_1 (event);
|
|
|
2654 break;
|
|
|
2655 }
|
|
|
2656 }
|
|
|
2657 }
|
|
|
2658
|
|
|
2659 unbind_to (count, timeout_enabled ? make_int (timeout_id) : Qnil);
|
|
|
2660
|
|
|
2661 Fdeallocate_event (event);
|
|
|
2662 UNGCPRO;
|
|
|
2663 current_buffer = old_buffer;
|
|
|
2664 return result;
|
|
|
2665 }
|
|
|
2666
|
|
|
2667 DEFUN ("sleep-for", Fsleep_for, 1, 1, 0, /*
|
|
|
2668 Pause, without updating display, for ARG seconds.
|
|
|
2669 ARG may be a float, meaning pause for some fractional part of a second.
|
|
|
2670
|
|
|
2671 It is recommended that you never call sleep-for from inside of a process
|
|
|
2672 filter function or timer event (either synchronous or asynchronous).
|
|
|
2673 */
|
|
|
2674 (seconds))
|
|
|
2675 {
|
|
|
2676 /* This function can GC */
|
|
|
2677 unsigned long msecs = lisp_number_to_milliseconds (seconds, 1);
|
|
|
2678 int id;
|
|
|
2679 Lisp_Object event = Qnil;
|
|
|
2680 int count;
|
|
|
2681 struct gcpro gcpro1;
|
|
|
2682
|
|
|
2683 GCPRO1 (event);
|
|
|
2684
|
|
|
2685 id = event_stream_generate_wakeup (msecs, 0, Qnil, Qnil, 0);
|
|
|
2686 event = Fmake_event (Qnil, Qnil);
|
|
|
2687
|
|
|
2688 count = specpdl_depth ();
|
|
|
2689 record_unwind_protect (sit_for_unwind, make_int (id));
|
|
|
2690 recursive_sit_for = Qt;
|
|
|
2691
|
|
|
2692 while (1)
|
|
|
2693 {
|
|
|
2694 /* If our timeout has arrived, we move along. */
|
|
|
2695 if (!event_stream_wakeup_pending_p (id, 0))
|
|
|
2696 goto DONE_LABEL;
|
|
|
2697
|
|
|
2698 QUIT; /* next_event_internal() does not QUIT, so check for ^G
|
|
|
2699 before reading output from the process - this makes it
|
|
|
2700 less likely that the filter will actually be aborted.
|
|
|
2701 */
|
|
|
2702 /* We're a generator of the command_event_queue, so we can't be a
|
|
|
2703 consumer as well. We don't care about command and eval-events
|
|
|
2704 anyway.
|
|
|
2705 */
|
|
|
2706 next_event_internal (event, 0); /* blocks */
|
|
|
2707 /* See the comment in accept-process-output about Vquit_flag */
|
|
|
2708 switch (XEVENT_TYPE (event))
|
|
|
2709 {
|
|
|
2710 case timeout_event:
|
|
|
2711 /* We execute the event even if it's ours, and notice that it's
|
|
|
2712 happened above. */
|
|
|
2713 case process_event:
|
|
|
2714 case pointer_motion_event:
|
|
|
2715 case magic_event:
|
|
|
2716 {
|
|
|
2717 execute_internal_event (event);
|
|
|
2718 break;
|
|
|
2719 }
|
|
|
2720 default:
|
|
|
2721 {
|
|
|
2722 enqueue_command_event_1 (event);
|
|
|
2723 break;
|
|
|
2724 }
|
|
|
2725 }
|
|
|
2726 }
|
|
|
2727 DONE_LABEL:
|
|
|
2728 unbind_to (count, make_int (id));
|
|
|
2729 Fdeallocate_event (event);
|
|
|
2730 UNGCPRO;
|
|
|
2731 return Qnil;
|
|
|
2732 }
|
|
|
2733
|
|
|
2734 DEFUN ("sit-for", Fsit_for, 1, 2, 0, /*
|
|
|
2735 Perform redisplay, then wait ARG seconds or until user input is available.
|
|
|
2736 ARG may be a float, meaning a fractional part of a second.
|
|
|
2737 Optional second arg non-nil means don't redisplay, just wait for input.
|
|
|
2738 Redisplay is preempted as always if user input arrives, and does not
|
|
|
2739 happen if input is available before it starts.
|
|
|
2740 Value is t if waited the full time with no input arriving.
|
|
|
2741
|
|
|
2742 If sit-for is called from within a process filter function or timer
|
|
|
2743 event (either synchronous or asynchronous) it will return immediately.
|
|
|
2744 */
|
|
|
2745 (seconds, nodisplay))
|
|
|
2746 {
|
|
|
2747 /* This function can GC */
|
|
|
2748 unsigned long msecs = lisp_number_to_milliseconds (seconds, 1);
|
|
|
2749 Lisp_Object event, result;
|
|
|
2750 struct gcpro gcpro1;
|
|
|
2751 int id;
|
|
|
2752 int count;
|
|
|
2753
|
|
|
2754 /* The unread-command-events count as pending input */
|
|
|
2755 if (!NILP (Vunread_command_events) || !NILP (Vunread_command_event))
|
|
|
2756 return Qnil;
|
|
|
2757
|
|
|
2758 /* If the command-builder already has user-input on it (not eval events)
|
|
|
2759 then that means we're done too.
|
|
|
2760 */
|
|
|
2761 if (!NILP (command_event_queue))
|
|
|
2762 {
|
|
|
2763 EVENT_CHAIN_LOOP (event, command_event_queue)
|
|
|
2764 {
|
|
|
2765 if (command_event_p (event))
|
|
|
2766 return Qnil;
|
|
|
2767 }
|
|
|
2768 }
|
|
|
2769
|
|
|
2770 /* If we're in a macro, or noninteractive, or early in temacs, then
|
|
|
2771 don't wait. */
|
|
|
2772 if (noninteractive || !NILP (Vexecuting_macro))
|
|
|
2773 return Qnil;
|
|
|
2774
|
|
|
2775 /* Recursive call from a filter function or timeout handler. */
|
|
|
2776 if (!NILP(recursive_sit_for))
|
|
|
2777 {
|
|
|
2778 if (!event_stream_event_pending_p (1) && NILP (nodisplay))
|
|
|
2779 {
|
|
|
2780 run_pre_idle_hook ();
|
|
|
2781 redisplay ();
|
|
|
2782 }
|
|
|
2783 return Qnil;
|
|
|
2784 }
|
|
|
2785
|
|
|
2786
|
|
|
2787 /* Otherwise, start reading events from the event_stream.
|
|
|
2788 Do this loop at least once even if (sit-for 0) so that we
|
|
|
2789 redisplay when no input pending.
|
|
|
2790 */
|
|
|
2791 GCPRO1 (event);
|
|
|
2792 event = Fmake_event (Qnil, Qnil);
|
|
|
2793
|
|
|
2794 /* Generate the wakeup even if MSECS is 0, so that existing timeout/etc.
|
|
|
2795 events get processed. The old (pre-19.12) code special-cased this
|
|
|
2796 and didn't generate a wakeup, but the resulting behavior was less than
|
|
|
2797 ideal; viz. the occurrence of (sit-for 0.001) scattered throughout
|
|
|
2798 the E-Lisp universe. */
|
|
|
2799
|
|
|
2800 id = event_stream_generate_wakeup (msecs, 0, Qnil, Qnil, 0);
|
|
|
2801
|
|
|
2802 count = specpdl_depth ();
|
|
|
2803 record_unwind_protect (sit_for_unwind, make_int (id));
|
|
|
2804 recursive_sit_for = Qt;
|
|
|
2805
|
|
|
2806 while (1)
|
|
|
2807 {
|
|
|
2808 /* If there is no user input pending, then redisplay.
|
|
|
2809 */
|
|
|
2810 if (!event_stream_event_pending_p (1) && NILP (nodisplay))
|
|
|
2811 {
|
|
|
2812 run_pre_idle_hook ();
|
|
|
2813 redisplay ();
|
|
|
2814 }
|
|
|
2815
|
|
|
2816 /* If our timeout has arrived, we move along. */
|
|
|
2817 if (!event_stream_wakeup_pending_p (id, 0))
|
|
|
2818 {
|
|
|
2819 result = Qt;
|
|
|
2820 goto DONE_LABEL;
|
|
|
2821 }
|
|
|
2822
|
|
|
2823 QUIT; /* next_event_internal() does not QUIT, so check for ^G
|
|
|
2824 before reading output from the process - this makes it
|
|
|
2825 less likely that the filter will actually be aborted.
|
|
|
2826 */
|
|
|
2827 /* We're a generator of the command_event_queue, so we can't be a
|
|
|
2828 consumer as well. In fact, we know there's nothing on the
|
|
|
2829 command_event_queue that we didn't just put there.
|
|
|
2830 */
|
|
|
2831 next_event_internal (event, 0); /* blocks */
|
|
|
2832 /* See the comment in accept-process-output about Vquit_flag */
|
|
|
2833
|
|
|
2834 if (command_event_p (event))
|
|
|
2835 {
|
|
|
2836 QUIT; /* If the command was C-g check it here
|
|
|
2837 so that we abort out of the sit-for,
|
|
|
2838 not the next command. sleep-for and
|
|
|
2839 accept-process-output continue looping
|
|
|
2840 so they check QUIT again implicitly.*/
|
|
|
2841 result = Qnil;
|
|
|
2842 goto DONE_LABEL;
|
|
|
2843 }
|
|
|
2844 switch (XEVENT_TYPE (event))
|
|
|
2845 {
|
|
|
2846 case eval_event:
|
|
|
2847 {
|
|
|
2848 /* eval-events get delayed until later. */
|
|
|
2849 enqueue_command_event (Fcopy_event (event, Qnil));
|
|
|
2850 break;
|
|
|
2851 }
|
|
|
2852
|
|
|
2853 case timeout_event:
|
|
|
2854 /* We execute the event even if it's ours, and notice that it's
|
|
|
2855 happened above. */
|
|
|
2856 default:
|
|
|
2857 {
|
|
|
2858 execute_internal_event (event);
|
|
|
2859 break;
|
|
|
2860 }
|
|
|
2861 }
|
|
|
2862 }
|
|
|
2863
|
|
|
2864 DONE_LABEL:
|
|
|
2865 unbind_to (count, make_int (id));
|
|
|
2866
|
|
|
2867 /* Put back the event (if any) that made Fsit_for() exit before the
|
|
|
2868 timeout. Note that it is being added to the back of the queue, which
|
|
|
2869 would be inappropriate if there were any user events on the queue
|
|
|
2870 already: we would be misordering them. But we know that there are
|
|
|
2871 no user-events on the queue, or else we would not have reached this
|
|
|
2872 point at all.
|
|
|
2873 */
|
|
|
2874 if (NILP (result))
|
|
|
2875 enqueue_command_event (event);
|
|
|
2876 else
|
|
|
2877 Fdeallocate_event (event);
|
|
|
2878
|
|
|
2879 UNGCPRO;
|
|
|
2880 return result;
|
|
|
2881 }
|
|
|
2882
|
|
|
2883 /* This handy little function is used by xselect.c and energize.c to
|
|
|
2884 wait for replies from processes that aren't really processes (that is,
|
|
|
2885 the X server and the Energize server).
|
|
|
2886 */
|
|
|
2887 void
|
|
|
2888 wait_delaying_user_input (int (*predicate) (void *arg), void *predicate_arg)
|
|
|
2889 {
|
|
|
2890 /* This function can GC */
|
|
|
2891 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
2892 struct gcpro gcpro1;
|
|
|
2893 GCPRO1 (event);
|
|
|
2894
|
|
|
2895 while (!(*predicate) (predicate_arg))
|
|
|
2896 {
|
|
|
2897 QUIT; /* next_event_internal() does not QUIT. */
|
|
|
2898
|
|
|
2899 /* We're a generator of the command_event_queue, so we can't be a
|
|
|
2900 consumer as well. Also, we have no reason to consult the
|
|
|
2901 command_event_queue; there are only user and eval-events there,
|
|
|
2902 and we'd just have to put them back anyway.
|
|
|
2903 */
|
|
|
2904 next_event_internal (event, 0);
|
|
|
2905 /* See the comment in accept-process-output about Vquit_flag */
|
|
|
2906 if (command_event_p (event)
|
|
|
2907 || (XEVENT_TYPE (event) == eval_event)
|
|
|
2908 || (XEVENT_TYPE (event) == magic_eval_event))
|
|
|
2909 enqueue_command_event_1 (event);
|
|
|
2910 else
|
|
|
2911 execute_internal_event (event);
|
|
|
2912 }
|
|
|
2913 UNGCPRO;
|
|
|
2914 }
|
|
|
2915
|
|
|
2916
|
|
|
2917 /**********************************************************************/
|
|
|
2918 /* dispatching events; command builder */
|
|
|
2919 /**********************************************************************/
|
|
|
2920
|
|
|
2921 static void
|
|
|
2922 execute_internal_event (Lisp_Object event)
|
|
|
2923 {
|
|
|
2924 /* events on dead channels get silently eaten */
|
|
|
2925 if (object_dead_p (XEVENT (event)->channel))
|
|
|
2926 return;
|
|
|
2927
|
|
|
2928 /* This function can GC */
|
|
|
2929 switch (XEVENT_TYPE (event))
|
|
|
2930 {
|
|
|
2931 case empty_event:
|
|
|
2932 return;
|
|
|
2933
|
|
|
2934 case eval_event:
|
|
|
2935 {
|
|
|
2936 call1 (XEVENT (event)->event.eval.function,
|
|
|
2937 XEVENT (event)->event.eval.object);
|
|
|
2938 return;
|
|
|
2939 }
|
|
|
2940
|
|
|
2941 case magic_eval_event:
|
|
|
2942 {
|
|
|
2943 (XEVENT (event)->event.magic_eval.internal_function)
|
|
|
2944 (XEVENT (event)->event.magic_eval.object);
|
|
|
2945 return;
|
|
|
2946 }
|
|
|
2947
|
|
|
2948 case pointer_motion_event:
|
|
|
2949 {
|
|
|
2950 if (!NILP (Vmouse_motion_handler))
|
|
|
2951 call1 (Vmouse_motion_handler, event);
|
|
|
2952 return;
|
|
|
2953 }
|
|
|
2954
|
|
|
2955 case process_event:
|
|
|
2956 {
|
|
|
2957 Lisp_Object p = XEVENT (event)->event.process.process;
|
|
|
2958 Charcount readstatus;
|
|
|
2959
|
|
|
2960 assert (PROCESSP (p));
|
|
|
2961 while ((readstatus = read_process_output (p)) > 0)
|
|
|
2962 ;
|
|
|
2963 if (readstatus > 0)
|
|
|
2964 ; /* this clauses never gets executed but allows the #ifdefs
|
|
|
2965 to work cleanly. */
|
|
|
2966 #ifdef EWOULDBLOCK
|
|
|
2967 else if (readstatus == -1 && errno == EWOULDBLOCK)
|
|
|
2968 ;
|
|
|
2969 #endif /* EWOULDBLOCK */
|
|
|
2970 #ifdef EAGAIN
|
|
|
2971 else if (readstatus == -1 && errno == EAGAIN)
|
|
|
2972 ;
|
|
|
2973 #endif /* EAGAIN */
|
|
|
2974 else if ((readstatus == 0 &&
|
|
|
2975 /* Note that we cannot distinguish between no input
|
|
|
2976 available now and a closed pipe.
|
|
|
2977 With luck, a closed pipe will be accompanied by
|
|
|
2978 subprocess termination and SIGCHLD. */
|
|
|
2979 (!network_connection_p (p) ||
|
|
|
2980 /*
|
|
|
2981 When connected to ToolTalk (i.e.
|
|
|
2982 connected_via_filedesc_p()), it's not possible to
|
|
|
2983 reliably determine whether there is a message
|
|
|
2984 waiting for ToolTalk to receive. ToolTalk expects
|
|
|
2985 to have tt_message_receive() called exactly once
|
|
|
2986 every time the file descriptor becomes active, so
|
|
|
2987 the filter function forces this by returning 0.
|
|
|
2988 Emacs must not interpret this as a closed pipe. */
|
|
|
2989 connected_via_filedesc_p (XPROCESS (p))))
|
|
|
2990 #ifdef HAVE_PTYS
|
|
|
2991 /* On some OSs with ptys, when the process on one end of
|
|
|
2992 a pty exits, the other end gets an error reading with
|
|
|
2993 errno = EIO instead of getting an EOF (0 bytes read).
|
|
|
2994 Therefore, if we get an error reading and errno =
|
|
|
2995 EIO, just continue, because the child process has
|
|
|
2996 exited and should clean itself up soon (e.g. when we
|
|
|
2997 get a SIGCHLD). */
|
|
|
2998 || (readstatus == -1 && errno == EIO)
|
|
|
2999 #endif
|
|
|
3000 )
|
|
|
3001 {
|
|
|
3002 /* Currently, we rely on SIGCHLD to indicate that the
|
|
|
3003 process has terminated. Unfortunately, on some systems
|
|
|
3004 the SIGCHLD gets missed some of the time. So we put an
|
|
|
3005 additional check in status_notify() to see whether a
|
|
|
3006 process has terminated. We must tell status_notify()
|
|
|
3007 to enable that check, and we do so now. */
|
|
|
3008 kick_status_notify ();
|
|
|
3009 }
|
|
|
3010 else
|
|
|
3011 {
|
|
|
3012 /* Deactivate network connection */
|
|
|
3013 Lisp_Object status = Fprocess_status (p);
|
|
|
3014 if (EQ (status, Qopen)
|
|
|
3015 /* In case somebody changes the theory of whether to
|
|
|
3016 return open as opposed to run for network connection
|
|
|
3017 "processes"... */
|
|
|
3018 || EQ (status, Qrun))
|
|
|
3019 update_process_status (p, Qexit, 256, 0);
|
|
|
3020 deactivate_process (p);
|
|
|
3021 }
|
|
|
3022
|
|
|
3023 /* We must call status_notify here to allow the
|
|
|
3024 event_stream->unselect_process_cb to be run if appropriate.
|
|
|
3025 Otherwise, dead fds may be selected for, and we will get a
|
|
|
3026 continuous stream of process events for them. Since we don't
|
|
|
3027 return until all process events have been flushed, we would
|
|
|
3028 get stuck here, processing events on a process whose status
|
|
|
3029 was 'exit. Call this after dispatch-event, or the fds will
|
|
|
3030 have been closed before we read the last data from them.
|
|
|
3031 It's safe for the filter to signal an error because
|
|
|
3032 status_notify() will be called on return to top-level.
|
|
|
3033 */
|
|
|
3034 status_notify ();
|
|
|
3035 return;
|
|
|
3036 }
|
|
|
3037
|
|
|
3038 case timeout_event:
|
|
|
3039 {
|
|
|
3040 struct Lisp_Event *e = XEVENT (event);
|
|
|
3041 if (!NILP (e->event.timeout.function))
|
|
|
3042 call1 (e->event.timeout.function,
|
|
|
3043 e->event.timeout.object);
|
|
|
3044 return;
|
|
|
3045 }
|
|
|
3046 case magic_event:
|
|
|
3047 {
|
|
|
3048 event_stream_handle_magic_event (XEVENT (event));
|
|
|
3049 return;
|
|
|
3050 }
|
|
|
3051 default:
|
|
|
3052 abort ();
|
|
|
3053 }
|
|
|
3054 }
|
|
|
3055
|
|
|
3056
|
|
|
3057
|
|
|
3058 static void
|
|
|
3059 this_command_keys_replace_suffix (Lisp_Object suffix, Lisp_Object chain)
|
|
|
3060 {
|
|
|
3061 Lisp_Object first_before_suffix =
|
|
|
3062 event_chain_find_previous (Vthis_command_keys, suffix);
|
|
|
3063
|
|
|
3064 if (NILP (first_before_suffix))
|
|
|
3065 Vthis_command_keys = chain;
|
|
|
3066 else
|
|
|
3067 XSET_EVENT_NEXT (first_before_suffix, chain);
|
|
|
3068 deallocate_event_chain (suffix);
|
|
|
3069 Vthis_command_keys_tail = event_chain_tail (chain);
|
|
|
3070 }
|
|
|
3071
|
|
|
3072 static void
|
|
|
3073 command_builder_replace_suffix (struct command_builder *builder,
|
|
|
3074 Lisp_Object suffix, Lisp_Object chain)
|
|
|
3075 {
|
|
|
3076 Lisp_Object first_before_suffix =
|
|
|
3077 event_chain_find_previous (builder->current_events, suffix);
|
|
|
3078
|
|
|
3079 if (NILP (first_before_suffix))
|
|
|
3080 builder->current_events = chain;
|
|
|
3081 else
|
|
|
3082 XSET_EVENT_NEXT (first_before_suffix, chain);
|
|
|
3083 deallocate_event_chain (suffix);
|
|
|
3084 builder->most_current_event = event_chain_tail (chain);
|
|
|
3085 }
|
|
|
3086
|
|
|
3087 static Lisp_Object
|
|
|
3088 command_builder_find_leaf_1 (struct command_builder *builder)
|
|
|
3089 {
|
|
|
3090 Lisp_Object event0 = builder->current_events;
|
|
|
3091
|
|
|
3092 if (NILP (event0))
|
|
|
3093 return Qnil;
|
|
|
3094
|
|
|
3095 return event_binding (event0, 1);
|
|
|
3096 }
|
|
|
3097
|
|
|
3098 #if defined(HAVE_X_WINDOWS) && defined(LWLIB_MENUBARS_LUCID)
|
|
|
3099 static void
|
|
|
3100 menu_move_up (void)
|
|
|
3101 {
|
|
430
|
3102 widget_value *current = lw_get_entries (False);
|
|
|
3103 widget_value *entries = lw_get_entries (True);
|
|
|
3104 widget_value *prev = NULL;
|
|
|
3105
|
|
|
3106 while (entries != current)
|
|
428
|
3107 {
|
|
430
|
3108 if (entries->name /*&& entries->enabled*/) prev = entries;
|
|
|
3109 entries = entries->next;
|
|
|
3110 assert (entries);
|
|
428
|
3111 }
|
|
|
3112
|
|
|
3113 if (!prev)
|
|
|
3114 /* move to last item */
|
|
|
3115 {
|
|
|
3116 while (entries->next)
|
|
|
3117 {
|
|
|
3118 if (entries->name /*&& entries->enabled*/) prev = entries;
|
|
|
3119 entries = entries->next;
|
|
|
3120 }
|
|
|
3121 if (prev)
|
|
|
3122 {
|
|
|
3123 if (entries->name /*&& entries->enabled*/)
|
|
|
3124 prev = entries;
|
|
|
3125 }
|
|
|
3126 else
|
|
|
3127 {
|
|
|
3128 /* no selectable items in this menu, pop up to previous level */
|
|
|
3129 lw_pop_menu ();
|
|
|
3130 return;
|
|
|
3131 }
|
|
|
3132 }
|
|
|
3133 lw_set_item (prev);
|
|
|
3134 }
|
|
|
3135
|
|
|
3136 static void
|
|
|
3137 menu_move_down (void)
|
|
|
3138 {
|
|
430
|
3139 widget_value *current = lw_get_entries (False);
|
|
|
3140 widget_value *new = current;
|
|
428
|
3141
|
|
|
3142 while (new->next)
|
|
|
3143 {
|
|
|
3144 new = new->next;
|
|
|
3145 if (new->name /*&& new->enabled*/) break;
|
|
|
3146 }
|
|
|
3147
|
|
|
3148 if (new==current||!(new->name/*||new->enabled*/))
|
|
|
3149 {
|
|
|
3150 new = lw_get_entries (True);
|
|
|
3151 while (new!=current)
|
|
|
3152 {
|
|
|
3153 if (new->name /*&& new->enabled*/) break;
|
|
|
3154 new = new->next;
|
|
|
3155 }
|
|
|
3156 if (new==current&&!(new->name /*|| new->enabled*/))
|
|
|
3157 {
|
|
|
3158 lw_pop_menu ();
|
|
|
3159 return;
|
|
|
3160 }
|
|
|
3161 }
|
|
|
3162
|
|
|
3163 lw_set_item (new);
|
|
|
3164 }
|
|
|
3165
|
|
|
3166 static void
|
|
|
3167 menu_move_left (void)
|
|
|
3168 {
|
|
|
3169 int level = lw_menu_level ();
|
|
|
3170 int l = level;
|
|
|
3171 widget_value *current;
|
|
|
3172
|
|
430
|
3173 while (level-- >= 3)
|
|
|
3174 lw_pop_menu ();
|
|
|
3175
|
|
428
|
3176 menu_move_up ();
|
|
|
3177 current = lw_get_entries (False);
|
|
|
3178 if (l > 2 && current->contents)
|
|
|
3179 lw_push_menu (current->contents);
|
|
|
3180 }
|
|
|
3181
|
|
|
3182 static void
|
|
|
3183 menu_move_right (void)
|
|
|
3184 {
|
|
|
3185 int level = lw_menu_level ();
|
|
|
3186 int l = level;
|
|
|
3187 widget_value *current;
|
|
|
3188
|
|
430
|
3189 while (level-- >= 3)
|
|
|
3190 lw_pop_menu ();
|
|
|
3191
|
|
428
|
3192 menu_move_down ();
|
|
|
3193 current = lw_get_entries (False);
|
|
|
3194 if (l > 2 && current->contents)
|
|
|
3195 lw_push_menu (current->contents);
|
|
|
3196 }
|
|
|
3197
|
|
|
3198 static void
|
|
|
3199 menu_select_item (widget_value *val)
|
|
|
3200 {
|
|
|
3201 if (val == NULL)
|
|
|
3202 val = lw_get_entries (False);
|
|
|
3203
|
|
|
3204 /* is match a submenu? */
|
|
|
3205
|
|
|
3206 if (val->contents)
|
|
|
3207 {
|
|
|
3208 /* enter the submenu */
|
|
|
3209
|
|
|
3210 lw_set_item (val);
|
|
|
3211 lw_push_menu (val->contents);
|
|
|
3212 }
|
|
|
3213 else
|
|
|
3214 {
|
|
|
3215 /* Execute the menu entry by calling the menu's `select'
|
|
|
3216 callback function
|
|
|
3217 */
|
|
|
3218 lw_kill_menus (val);
|
|
|
3219 }
|
|
|
3220 }
|
|
|
3221
|
|
|
3222 static Lisp_Object
|
|
|
3223 command_builder_operate_menu_accelerator (struct command_builder *builder)
|
|
|
3224 {
|
|
|
3225 /* this function can GC */
|
|
|
3226
|
|
|
3227 struct console *con = XCONSOLE (Vselected_console);
|
|
|
3228 Lisp_Object evee = builder->most_current_event;
|
|
|
3229 Lisp_Object binding;
|
|
|
3230 widget_value *entries;
|
|
|
3231
|
|
|
3232 extern int lw_menu_accelerate; /* lwlib.c */
|
|
|
3233
|
|
|
3234 #if 0
|
|
|
3235 {
|
|
|
3236 int i;
|
|
|
3237 Lisp_Object t;
|
|
|
3238 char buf[50];
|
|
|
3239
|
|
|
3240 t = builder->current_events;
|
|
|
3241 i = 0;
|
|
|
3242 while (!NILP (t))
|
|
|
3243 {
|
|
|
3244 i++;
|
|
|
3245 sprintf (buf,"OPERATE (%d): ",i);
|
|
|
3246 write_c_string (buf, Qexternal_debugging_output);
|
|
|
3247 print_internal (t, Qexternal_debugging_output, 1);
|
|
|
3248 write_c_string ("\n", Qexternal_debugging_output);
|
|
|
3249 t = XEVENT_NEXT (t);
|
|
|
3250 }
|
|
|
3251 }
|
|
|
3252 #endif /* 0 */
|
|
|
3253
|
|
|
3254 /* menu accelerator keys don't go into keyboard macros */
|
|
|
3255 if (!NILP (con->defining_kbd_macro) && NILP (Vexecuting_macro))
|
|
|
3256 con->kbd_macro_ptr = con->kbd_macro_end;
|
|
|
3257
|
|
|
3258 /* don't echo menu accelerator keys */
|
|
|
3259 /*reset_key_echo (builder, 1);*/
|
|
|
3260
|
|
|
3261 if (!lw_menu_accelerate)
|
|
|
3262 {
|
|
|
3263 /* `convert' mouse display to keyboard display
|
|
|
3264 by entering the open submenu
|
|
|
3265 */
|
|
|
3266 entries = lw_get_entries (False);
|
|
|
3267 if (entries->contents)
|
|
|
3268 {
|
|
|
3269 lw_push_menu (entries->contents);
|
|
|
3270 lw_display_menu (CurrentTime);
|
|
|
3271 }
|
|
|
3272 }
|
|
|
3273
|
|
|
3274 /* compare event to the current menu accelerators */
|
|
|
3275
|
|
|
3276 entries=lw_get_entries (True);
|
|
|
3277
|
|
|
3278 while (entries)
|
|
|
3279 {
|
|
|
3280 Lisp_Object accel;
|
|
|
3281 VOID_TO_LISP (accel, entries->accel);
|
|
|
3282 if (entries->name && !NILP (accel))
|
|
|
3283 {
|
|
|
3284 if (event_matches_key_specifier_p (XEVENT (evee), accel))
|
|
|
3285 {
|
|
|
3286 /* a match! */
|
|
|
3287
|
|
|
3288 menu_select_item (entries);
|
|
|
3289
|
|
|
3290 if (lw_menu_active) lw_display_menu (CurrentTime);
|
|
|
3291
|
|
|
3292 reset_this_command_keys (Vselected_console, 1);
|
|
|
3293 /*reset_command_builder_event_chain (builder);*/
|
|
|
3294 return Vmenu_accelerator_map;
|
|
|
3295 }
|
|
|
3296 }
|
|
|
3297 entries = entries->next;
|
|
|
3298 }
|
|
|
3299
|
|
|
3300 /* try to look up event in menu-accelerator-map */
|
|
|
3301
|
|
|
3302 binding = event_binding_in (evee, Vmenu_accelerator_map, 1);
|
|
|
3303
|
|
|
3304 if (NILP (binding))
|
|
|
3305 {
|
|
|
3306 /* beep at user for undefined key */
|
|
|
3307 return Qnil;
|
|
|
3308 }
|
|
|
3309 else
|
|
|
3310 {
|
|
|
3311 if (EQ (binding, Qmenu_quit))
|
|
|
3312 {
|
|
|
3313 /* turn off menus and set quit flag */
|
|
|
3314 lw_kill_menus (NULL);
|
|
|
3315 Vquit_flag = Qt;
|
|
|
3316 }
|
|
|
3317 else if (EQ (binding, Qmenu_up))
|
|
|
3318 {
|
|
|
3319 int level = lw_menu_level ();
|
|
|
3320 if (level > 2)
|
|
|
3321 menu_move_up ();
|
|
|
3322 }
|
|
|
3323 else if (EQ (binding, Qmenu_down))
|
|
|
3324 {
|
|
|
3325 int level = lw_menu_level ();
|
|
|
3326 if (level > 2)
|
|
|
3327 menu_move_down ();
|
|
|
3328 else
|
|
|
3329 menu_select_item (NULL);
|
|
|
3330 }
|
|
|
3331 else if (EQ (binding, Qmenu_left))
|
|
|
3332 {
|
|
|
3333 int level = lw_menu_level ();
|
|
|
3334 if (level > 3)
|
|
|
3335 {
|
|
|
3336 lw_pop_menu ();
|
|
|
3337 lw_display_menu (CurrentTime);
|
|
|
3338 }
|
|
|
3339 else
|
|
|
3340 menu_move_left ();
|
|
|
3341 }
|
|
|
3342 else if (EQ (binding, Qmenu_right))
|
|
|
3343 {
|
|
|
3344 int level = lw_menu_level ();
|
|
|
3345 if (level > 2 &&
|
|
|
3346 lw_get_entries (False)->contents)
|
|
|
3347 {
|
|
|
3348 widget_value *current = lw_get_entries (False);
|
|
|
3349 if (current->contents)
|
|
|
3350 menu_select_item (NULL);
|
|
|
3351 }
|
|
|
3352 else
|
|
|
3353 menu_move_right ();
|
|
|
3354 }
|
|
|
3355 else if (EQ (binding, Qmenu_select))
|
|
|
3356 menu_select_item (NULL);
|
|
|
3357 else if (EQ (binding, Qmenu_escape))
|
|
|
3358 {
|
|
|
3359 int level = lw_menu_level ();
|
|
|
3360
|
|
|
3361 if (level > 2)
|
|
|
3362 {
|
|
|
3363 lw_pop_menu ();
|
|
|
3364 lw_display_menu (CurrentTime);
|
|
|
3365 }
|
|
|
3366 else
|
|
|
3367 {
|
|
|
3368 /* turn off menus quietly */
|
|
|
3369 lw_kill_menus (NULL);
|
|
|
3370 }
|
|
|
3371 }
|
|
|
3372 else if (KEYMAPP (binding))
|
|
|
3373 {
|
|
|
3374 /* prefix key */
|
|
|
3375 reset_this_command_keys (Vselected_console, 1);
|
|
|
3376 /*reset_command_builder_event_chain (builder);*/
|
|
|
3377 return binding;
|
|
|
3378 }
|
|
|
3379 else
|
|
|
3380 {
|
|
|
3381 /* turn off menus and execute binding */
|
|
|
3382 lw_kill_menus (NULL);
|
|
|
3383 reset_this_command_keys (Vselected_console, 1);
|
|
|
3384 /*reset_command_builder_event_chain (builder);*/
|
|
|
3385 return binding;
|
|
|
3386 }
|
|
|
3387 }
|
|
|
3388
|
|
|
3389 if (lw_menu_active) lw_display_menu (CurrentTime);
|
|
|
3390
|
|
|
3391 reset_this_command_keys (Vselected_console, 1);
|
|
|
3392 /*reset_command_builder_event_chain (builder);*/
|
|
|
3393
|
|
|
3394 return Vmenu_accelerator_map;
|
|
|
3395 }
|
|
|
3396
|
|
|
3397 static Lisp_Object
|
|
|
3398 menu_accelerator_junk_on_error (Lisp_Object errordata, Lisp_Object ignored)
|
|
|
3399 {
|
|
|
3400 Vmenu_accelerator_prefix = Qnil;
|
|
|
3401 Vmenu_accelerator_modifiers = Qnil;
|
|
|
3402 Vmenu_accelerator_enabled = Qnil;
|
|
|
3403 if (!NILP (errordata))
|
|
|
3404 {
|
|
|
3405 Lisp_Object args[2];
|
|
|
3406
|
|
|
3407 args[0] = build_string ("Error in menu accelerators (setting to nil)");
|
|
|
3408 /* #### This should call
|
|
|
3409 (with-output-to-string (display-error errordata))
|
|
|
3410 but that stuff is all in Lisp currently. */
|
|
|
3411 args[1] = errordata;
|
|
|
3412 warn_when_safe_lispobj
|
|
|
3413 (Qerror, Qwarning,
|
|
|
3414 emacs_doprnt_string_lisp ((CONST Bufbyte *) "%s: %s",
|
|
|
3415 Qnil, -1, 2, args));
|
|
|
3416 }
|
|
|
3417
|
|
|
3418 return Qnil;
|
|
|
3419 }
|
|
|
3420
|
|
|
3421 static Lisp_Object
|
|
|
3422 menu_accelerator_safe_compare (Lisp_Object event0)
|
|
|
3423 {
|
|
|
3424 if (CONSP (Vmenu_accelerator_prefix))
|
|
|
3425 {
|
|
|
3426 Lisp_Object t;
|
|
|
3427 t=Vmenu_accelerator_prefix;
|
|
|
3428 while (!NILP (t)
|
|
|
3429 && !NILP (event0)
|
|
|
3430 && event_matches_key_specifier_p (XEVENT (event0), Fcar (t)))
|
|
|
3431 {
|
|
|
3432 t = Fcdr (t);
|
|
|
3433 event0 = XEVENT_NEXT (event0);
|
|
|
3434 }
|
|
|
3435 if (!NILP (t))
|
|
|
3436 return Qnil;
|
|
|
3437 }
|
|
|
3438 else if (NILP (event0))
|
|
|
3439 return Qnil;
|
|
|
3440 else if (event_matches_key_specifier_p (XEVENT (event0), Vmenu_accelerator_prefix))
|
|
|
3441 event0 = XEVENT_NEXT (event0);
|
|
|
3442 else
|
|
|
3443 return Qnil;
|
|
|
3444 return event0;
|
|
|
3445 }
|
|
|
3446
|
|
|
3447 static Lisp_Object
|
|
|
3448 menu_accelerator_safe_mod_compare (Lisp_Object cons)
|
|
|
3449 {
|
|
|
3450 return (event_matches_key_specifier_p (XEVENT (XCAR (cons)), XCDR (cons))
|
|
|
3451 ? Qt
|
|
|
3452 : Qnil);
|
|
|
3453 }
|
|
|
3454
|
|
|
3455 static Lisp_Object
|
|
|
3456 command_builder_find_menu_accelerator (struct command_builder *builder)
|
|
|
3457 {
|
|
|
3458 /* this function can GC */
|
|
|
3459 Lisp_Object event0 = builder->current_events;
|
|
|
3460 struct console *con = XCONSOLE (Vselected_console);
|
|
|
3461 struct frame *f = XFRAME (CONSOLE_SELECTED_FRAME (con));
|
|
|
3462 Widget menubar_widget;
|
|
|
3463
|
|
|
3464 /* compare entries in event0 against the menu prefix */
|
|
|
3465
|
|
|
3466 if ((!CONSOLE_X_P (XCONSOLE (builder->console))) || NILP (event0) ||
|
|
|
3467 XEVENT (event0)->event_type != key_press_event)
|
|
|
3468 return Qnil;
|
|
|
3469
|
|
|
3470 if (!NILP (Vmenu_accelerator_prefix))
|
|
|
3471 {
|
|
|
3472 event0 = condition_case_1 (Qerror,
|
|
|
3473 menu_accelerator_safe_compare,
|
|
|
3474 event0,
|
|
|
3475 menu_accelerator_junk_on_error,
|
|
|
3476 Qnil);
|
|
|
3477 }
|
|
|
3478
|
|
|
3479 if (NILP (event0))
|
|
|
3480 return Qnil;
|
|
|
3481
|
|
|
3482 menubar_widget = FRAME_X_MENUBAR_WIDGET (f);
|
|
|
3483 if (menubar_widget
|
|
|
3484 && CONSP (Vmenu_accelerator_modifiers))
|
|
|
3485 {
|
|
|
3486 Lisp_Object fake;
|
|
|
3487 Lisp_Object last = Qnil;
|
|
|
3488 struct gcpro gcpro1;
|
|
|
3489 Lisp_Object matchp;
|
|
|
3490
|
|
|
3491 widget_value *val;
|
|
|
3492 LWLIB_ID id = XPOPUP_DATA (f->menubar_data)->id;
|
|
|
3493
|
|
|
3494 val = lw_get_all_values (id);
|
|
|
3495 if (val)
|
|
|
3496 {
|
|
|
3497 val = val->contents;
|
|
|
3498
|
|
|
3499 fake = Fcopy_sequence (Vmenu_accelerator_modifiers);
|
|
|
3500 last = fake;
|
|
|
3501
|
|
|
3502 while (!NILP (Fcdr (last)))
|
|
|
3503 last = Fcdr (last);
|
|
|
3504
|
|
|
3505 Fsetcdr (last, Fcons (Qnil, Qnil));
|
|
|
3506 last = Fcdr (last);
|
|
|
3507 }
|
|
|
3508
|
|
|
3509 fake = Fcons (Qnil, fake);
|
|
|
3510
|
|
|
3511 GCPRO1 (fake);
|
|
|
3512
|
|
|
3513 while (val)
|
|
|
3514 {
|
|
|
3515 Lisp_Object accel;
|
|
|
3516 VOID_TO_LISP (accel, val->accel);
|
|
|
3517 if (val->name && !NILP (accel))
|
|
|
3518 {
|
|
|
3519 Fsetcar (last, accel);
|
|
|
3520 Fsetcar (fake, event0);
|
|
|
3521 matchp = condition_case_1 (Qerror,
|
|
|
3522 menu_accelerator_safe_mod_compare,
|
|
|
3523 fake,
|
|
|
3524 menu_accelerator_junk_on_error,
|
|
|
3525 Qnil);
|
|
|
3526 if (!NILP (matchp))
|
|
|
3527 {
|
|
|
3528 /* we found one! */
|
|
|
3529
|
|
|
3530 lw_set_menu (menubar_widget, val);
|
|
|
3531 /* yah - yet another hack.
|
|
|
3532 pretend emacs timestamp is the same as an X timestamp,
|
|
|
3533 which for the moment it is. (read events.h)
|
|
|
3534 */
|
|
|
3535 lw_map_menu (XEVENT (event0)->timestamp);
|
|
|
3536
|
|
|
3537 if (val->contents)
|
|
|
3538 lw_push_menu (val->contents);
|
|
|
3539
|
|
|
3540 lw_display_menu (CurrentTime);
|
|
|
3541
|
|
|
3542 /* menu accelerator keys don't go into keyboard macros */
|
|
|
3543 if (!NILP (con->defining_kbd_macro) && NILP (Vexecuting_macro))
|
|
|
3544 con->kbd_macro_ptr = con->kbd_macro_end;
|
|
|
3545
|
|
|
3546 /* don't echo menu accelerator keys */
|
|
|
3547 /*reset_key_echo (builder, 1);*/
|
|
|
3548 reset_this_command_keys (Vselected_console, 1);
|
|
|
3549 UNGCPRO;
|
|
|
3550
|
|
|
3551 return Vmenu_accelerator_map;
|
|
|
3552 }
|
|
|
3553 }
|
|
|
3554
|
|
|
3555 val = val->next;
|
|
|
3556 }
|
|
|
3557
|
|
|
3558 UNGCPRO;
|
|
|
3559 }
|
|
|
3560 return Qnil;
|
|
|
3561 }
|
|
|
3562
|
|
|
3563
|
|
|
3564 DEFUN ("accelerate-menu", Faccelerate_menu, 0, 0, "_", /*
|
|
|
3565 Make the menubar active. Menu items can be selected using menu accelerators
|
|
|
3566 or by actions defined in menu-accelerator-map.
|
|
|
3567 */
|
|
|
3568 ())
|
|
|
3569 {
|
|
|
3570 struct console *con = XCONSOLE (Vselected_console);
|
|
|
3571 struct frame *f = XFRAME (CONSOLE_SELECTED_FRAME (con));
|
|
|
3572 LWLIB_ID id;
|
|
|
3573 widget_value *val;
|
|
|
3574
|
|
|
3575 if (NILP (f->menubar_data))
|
|
|
3576 error ("Frame has no menubar.");
|
|
|
3577
|
|
|
3578 id = XPOPUP_DATA (f->menubar_data)->id;
|
|
|
3579 val = lw_get_all_values (id);
|
|
|
3580 val = val->contents;
|
|
|
3581 lw_set_menu (FRAME_X_MENUBAR_WIDGET (f), val);
|
|
|
3582 lw_map_menu (CurrentTime);
|
|
|
3583
|
|
|
3584 lw_display_menu (CurrentTime);
|
|
|
3585
|
|
|
3586 /* menu accelerator keys don't go into keyboard macros */
|
|
|
3587 if (!NILP (con->defining_kbd_macro) && NILP (Vexecuting_macro))
|
|
|
3588 con->kbd_macro_ptr = con->kbd_macro_end;
|
|
|
3589
|
|
|
3590 return Qnil;
|
|
|
3591 }
|
|
|
3592 #endif /* HAVE_X_WINDOWS && HAVE_MENUBARS */
|
|
|
3593
|
|
|
3594 /* See if we can do function-key-map or key-translation-map translation
|
|
|
3595 on the current events in the command builder. If so, do this, and
|
|
|
3596 return the resulting binding, if any. */
|
|
|
3597
|
|
|
3598 static Lisp_Object
|
|
|
3599 munge_keymap_translate (struct command_builder *builder,
|
|
|
3600 enum munge_me_out_the_door munge,
|
|
|
3601 int has_normal_binding_p)
|
|
|
3602 {
|
|
|
3603 Lisp_Object suffix;
|
|
|
3604
|
|
|
3605 EVENT_CHAIN_LOOP (suffix, builder->munge_me[munge].first_mungeable_event)
|
|
|
3606 {
|
|
|
3607 Lisp_Object result = munging_key_map_event_binding (suffix, munge);
|
|
|
3608
|
|
|
3609 if (NILP (result))
|
|
|
3610 continue;
|
|
|
3611
|
|
|
3612 if (KEYMAPP (result))
|
|
|
3613 {
|
|
|
3614 if (NILP (builder->last_non_munged_event)
|
|
|
3615 && !has_normal_binding_p)
|
|
|
3616 builder->last_non_munged_event = builder->most_current_event;
|
|
|
3617 }
|
|
|
3618 else
|
|
|
3619 builder->last_non_munged_event = Qnil;
|
|
|
3620
|
|
|
3621 if (!KEYMAPP (result) &&
|
|
|
3622 !VECTORP (result) &&
|
|
|
3623 !STRINGP (result))
|
|
|
3624 {
|
|
|
3625 struct gcpro gcpro1;
|
|
|
3626 GCPRO1 (suffix);
|
|
|
3627 result = call1 (result, Qnil);
|
|
|
3628 UNGCPRO;
|
|
|
3629 if (NILP (result))
|
|
|
3630 return Qnil;
|
|
|
3631 }
|
|
|
3632
|
|
|
3633 if (KEYMAPP (result))
|
|
|
3634 return result;
|
|
|
3635
|
|
|
3636 if (VECTORP (result) || STRINGP (result))
|
|
|
3637 {
|
|
|
3638 Lisp_Object new_chain = key_sequence_to_event_chain (result);
|
|
|
3639 Lisp_Object tempev;
|
|
|
3640 int n, tckn;
|
|
|
3641
|
|
|
3642 /* If the first_mungeable_event of the other munger is
|
|
|
3643 within the events we're munging, then it will point to
|
|
|
3644 deallocated events afterwards, which is bad -- so make it
|
|
|
3645 point at the beginning of the munged events. */
|
|
|
3646 EVENT_CHAIN_LOOP (tempev, suffix)
|
|
|
3647 {
|
|
|
3648 Lisp_Object *mungeable_event =
|
|
|
3649 &builder->munge_me[1 - munge].first_mungeable_event;
|
|
|
3650 if (EQ (tempev, *mungeable_event))
|
|
|
3651 {
|
|
|
3652 *mungeable_event = new_chain;
|
|
|
3653 break;
|
|
|
3654 }
|
|
|
3655 }
|
|
|
3656
|
|
|
3657 n = event_chain_count (suffix);
|
|
|
3658 command_builder_replace_suffix (builder, suffix, new_chain);
|
|
|
3659 builder->munge_me[munge].first_mungeable_event = Qnil;
|
|
|
3660 /* Now hork this-command-keys as well. */
|
|
|
3661
|
|
|
3662 /* We just assume that the events we just replaced are
|
|
|
3663 sitting in copied form at the end of this-command-keys.
|
|
|
3664 If the user did weird things with `dispatch-event' this
|
|
|
3665 may not be the case, but at least we make sure we won't
|
|
|
3666 crash. */
|
|
|
3667 new_chain = copy_event_chain (new_chain);
|
|
|
3668 tckn = event_chain_count (Vthis_command_keys);
|
|
|
3669 if (tckn >= n)
|
|
|
3670 {
|
|
|
3671 this_command_keys_replace_suffix
|
|
|
3672 (event_chain_nth (Vthis_command_keys, tckn - n),
|
|
|
3673 new_chain);
|
|
|
3674 }
|
|
|
3675
|
|
|
3676 result = command_builder_find_leaf_1 (builder);
|
|
|
3677 return result;
|
|
|
3678 }
|
|
|
3679
|
|
|
3680 signal_simple_error ((munge == MUNGE_ME_FUNCTION_KEY ?
|
|
|
3681 "Invalid binding in function-key-map" :
|
|
|
3682 "Invalid binding in key-translation-map"),
|
|
|
3683 result);
|
|
|
3684 }
|
|
|
3685
|
|
|
3686 return Qnil;
|
|
|
3687 }
|
|
|
3688
|
|
|
3689 /* Compare the current state of the command builder against the local and
|
|
|
3690 global keymaps, and return the binding. If there is no match, try again,
|
|
|
3691 case-insensitively. The return value will be one of:
|
|
|
3692 -- nil (there is no binding)
|
|
|
3693 -- a keymap (part of a command has been specified)
|
|
|
3694 -- a command (anything that satisfies `commandp'; this includes
|
|
|
3695 some symbols, lists, subrs, strings, vectors, and
|
|
|
3696 compiled-function objects)
|
|
|
3697 */
|
|
|
3698 static Lisp_Object
|
|
|
3699 command_builder_find_leaf (struct command_builder *builder,
|
|
|
3700 int allow_misc_user_events_p)
|
|
|
3701 {
|
|
|
3702 /* This function can GC */
|
|
|
3703 Lisp_Object result;
|
|
|
3704 Lisp_Object evee = builder->current_events;
|
|
|
3705
|
|
|
3706 if (XEVENT_TYPE (evee) == misc_user_event)
|
|
|
3707 {
|
|
|
3708 if (allow_misc_user_events_p && (NILP (XEVENT_NEXT (evee))))
|
|
|
3709 return list2 (XEVENT (evee)->event.eval.function,
|
|
|
3710 XEVENT (evee)->event.eval.object);
|
|
|
3711 else
|
|
|
3712 return Qnil;
|
|
|
3713 }
|
|
|
3714
|
|
|
3715 /* if we're currently in a menu accelerator, check there for further events */
|
|
|
3716 #if defined(HAVE_X_WINDOWS) && defined(LWLIB_MENUBARS_LUCID)
|
|
|
3717 if (lw_menu_active)
|
|
|
3718 {
|
|
|
3719 return command_builder_operate_menu_accelerator (builder);
|
|
|
3720 }
|
|
|
3721 else
|
|
|
3722 {
|
|
|
3723 result = Qnil;
|
|
|
3724 if (EQ (Vmenu_accelerator_enabled, Qmenu_force))
|
|
|
3725 result = command_builder_find_menu_accelerator (builder);
|
|
|
3726 if (NILP (result))
|
|
|
3727 #endif
|
|
|
3728 result = command_builder_find_leaf_1 (builder);
|
|
|
3729 #if defined(HAVE_X_WINDOWS) && defined(LWLIB_MENUBARS_LUCID)
|
|
|
3730 if (NILP (result)
|
|
|
3731 && EQ (Vmenu_accelerator_enabled, Qmenu_fallback))
|
|
|
3732 result = command_builder_find_menu_accelerator (builder);
|
|
|
3733 }
|
|
|
3734 #endif
|
|
|
3735
|
|
|
3736 /* Check to see if we have a potential function-key-map match. */
|
|
|
3737 if (NILP (result))
|
|
|
3738 {
|
|
|
3739 result = munge_keymap_translate (builder, MUNGE_ME_FUNCTION_KEY, 0);
|
|
|
3740 regenerate_echo_keys_from_this_command_keys (builder);
|
|
|
3741 }
|
|
|
3742 /* Check to see if we have a potential key-translation-map match. */
|
|
|
3743 {
|
|
|
3744 Lisp_Object key_translate_result =
|
|
|
3745 munge_keymap_translate (builder, MUNGE_ME_KEY_TRANSLATION,
|
|
|
3746 !NILP (result));
|
|
|
3747 if (!NILP (key_translate_result))
|
|
|
3748 {
|
|
|
3749 result = key_translate_result;
|
|
|
3750 regenerate_echo_keys_from_this_command_keys (builder);
|
|
|
3751 }
|
|
|
3752 }
|
|
|
3753
|
|
|
3754 if (!NILP (result))
|
|
|
3755 return result;
|
|
|
3756
|
|
|
3757 /* If key-sequence wasn't bound, we'll try some fallbacks. */
|
|
|
3758
|
|
|
3759 /* If we didn't find a binding, and the last event in the sequence is
|
|
|
3760 a shifted character, then try again with the lowercase version. */
|
|
|
3761
|
|
|
3762 if (XEVENT_TYPE (builder->most_current_event) == key_press_event
|
|
|
3763 && !NILP (Vretry_undefined_key_binding_unshifted))
|
|
|
3764 {
|
|
|
3765 Lisp_Object terminal = builder->most_current_event;
|
|
|
3766 struct key_data* key = & XEVENT (terminal)->event.key;
|
|
|
3767 Emchar c = 0;
|
|
|
3768 if ((key->modifiers & MOD_SHIFT)
|
|
|
3769 || (CHAR_OR_CHAR_INTP (key->keysym)
|
|
|
3770 && ((c = XCHAR_OR_CHAR_INT (key->keysym)), c >= 'A' && c <= 'Z')))
|
|
|
3771 {
|
|
|
3772 struct Lisp_Event terminal_copy = *XEVENT (terminal);
|
|
|
3773
|
|
|
3774 if (key->modifiers & MOD_SHIFT)
|
|
|
3775 key->modifiers &= (~ MOD_SHIFT);
|
|
|
3776 else
|
|
|
3777 key->keysym = make_char (c + 'a' - 'A');
|
|
|
3778
|
|
|
3779 result = command_builder_find_leaf (builder, allow_misc_user_events_p);
|
|
|
3780 if (!NILP (result))
|
|
|
3781 return result;
|
|
|
3782 /* If there was no match with the lower-case version either,
|
|
|
3783 then put back the upper-case event for the error
|
|
|
3784 message. But make sure that function-key-map didn't
|
|
|
3785 change things out from under us. */
|
|
|
3786 if (EQ (terminal, builder->most_current_event))
|
|
|
3787 *XEVENT (terminal) = terminal_copy;
|
|
|
3788 }
|
|
|
3789 }
|
|
|
3790
|
|
|
3791 /* help-char is `auto-bound' in every keymap */
|
|
|
3792 if (!NILP (Vprefix_help_command) &&
|
|
|
3793 event_matches_key_specifier_p (XEVENT (builder->most_current_event),
|
|
|
3794 Vhelp_char))
|
|
|
3795 return Vprefix_help_command;
|
|
|
3796
|
|
|
3797 #ifdef HAVE_XIM
|
|
|
3798 /* If keysym is a non-ASCII char, bind it to self-insert-char by default. */
|
|
|
3799 if (XEVENT_TYPE (builder->most_current_event) == key_press_event
|
|
|
3800 && !NILP (Vcomposed_character_default_binding))
|
|
|
3801 {
|
|
|
3802 Lisp_Object keysym = XEVENT (builder->most_current_event)->event.key.keysym;
|
|
|
3803 if (CHARP (keysym) && !CHAR_ASCII_P (XCHAR (keysym)))
|
|
|
3804 return Vcomposed_character_default_binding;
|
|
|
3805 }
|
|
|
3806 #endif /* HAVE_XIM */
|
|
|
3807
|
|
|
3808 /* If we read extra events attempting to match a function key but end
|
|
|
3809 up failing, then we release those events back to the command loop
|
|
|
3810 and fail on the original lookup. The released events will then be
|
|
|
3811 reprocessed in the context of the first part having failed. */
|
|
|
3812 if (!NILP (builder->last_non_munged_event))
|
|
|
3813 {
|
|
|
3814 Lisp_Object event0 = builder->last_non_munged_event;
|
|
|
3815
|
|
|
3816 /* Put the commands back on the event queue. */
|
|
|
3817 enqueue_event_chain (XEVENT_NEXT (event0),
|
|
|
3818 &command_event_queue,
|
|
|
3819 &command_event_queue_tail);
|
|
|
3820
|
|
|
3821 /* Then remove them from the command builder. */
|
|
|
3822 XSET_EVENT_NEXT (event0, Qnil);
|
|
|
3823 builder->most_current_event = event0;
|
|
|
3824 builder->last_non_munged_event = Qnil;
|
|
|
3825 }
|
|
|
3826
|
|
|
3827 return Qnil;
|
|
|
3828 }
|
|
|
3829
|
|
|
3830
|
|
|
3831 /* Every time a command-event (a key, button, or menu selection) is read by
|
|
|
3832 Fnext_event(), it is stored in the recent_keys_ring, in Vlast_input_event,
|
|
|
3833 and in Vthis_command_keys. (Eval-events are not stored there.)
|
|
|
3834
|
|
|
3835 Every time a command is invoked, Vlast_command_event is set to the last
|
|
|
3836 event in the sequence.
|
|
|
3837
|
|
|
3838 This means that Vthis_command_keys is really about "input read since the
|
|
|
3839 last command was executed" rather than about "what keys invoked this
|
|
|
3840 command." This is a little counterintuitive, but that's the way it
|
|
|
3841 has always worked.
|
|
|
3842
|
|
|
3843 As an extra kink, the function read-key-sequence resets/updates the
|
|
|
3844 last-command-event and this-command-keys. It doesn't append to the
|
|
|
3845 command-keys as read-char does. Such are the pitfalls of having to
|
|
|
3846 maintain compatibility with a program for which the only specification
|
|
|
3847 is the code itself.
|
|
|
3848
|
|
|
3849 (We could implement recent_keys_ring and Vthis_command_keys as the same
|
|
|
3850 data structure.)
|
|
|
3851 */
|
|
|
3852
|
|
|
3853 DEFUN ("recent-keys", Frecent_keys, 0, 1, 0, /*
|
|
|
3854 Return a vector of recent keyboard or mouse button events read.
|
|
|
3855 If NUMBER is non-nil, not more than NUMBER events will be returned.
|
|
|
3856 Change number of events stored using `set-recent-keys-ring-size'.
|
|
|
3857
|
|
|
3858 This copies the event objects into a new vector; it is safe to keep and
|
|
|
3859 modify them.
|
|
|
3860 */
|
|
|
3861 (number))
|
|
|
3862 {
|
|
|
3863 struct gcpro gcpro1;
|
|
|
3864 Lisp_Object val = Qnil;
|
|
|
3865 int nwanted;
|
|
|
3866 int start, nkeys, i, j;
|
|
|
3867 GCPRO1 (val);
|
|
|
3868
|
|
|
3869 if (NILP (number))
|
|
|
3870 nwanted = recent_keys_ring_size;
|
|
|
3871 else
|
|
|
3872 {
|
|
|
3873 CHECK_NATNUM (number);
|
|
|
3874 nwanted = XINT (number);
|
|
|
3875 }
|
|
|
3876
|
|
|
3877 /* Create the keys ring vector, if none present. */
|
|
|
3878 if (NILP (Vrecent_keys_ring))
|
|
|
3879 {
|
|
|
3880 Vrecent_keys_ring = make_vector (recent_keys_ring_size, Qnil);
|
|
|
3881 /* And return nothing in particular. */
|
|
|
3882 return make_vector (0, Qnil);
|
|
|
3883 }
|
|
|
3884
|
|
|
3885 if (NILP (XVECTOR_DATA (Vrecent_keys_ring)[recent_keys_ring_index]))
|
|
|
3886 /* This means the vector has not yet wrapped */
|
|
|
3887 {
|
|
|
3888 nkeys = recent_keys_ring_index;
|
|
|
3889 start = 0;
|
|
|
3890 }
|
|
|
3891 else
|
|
|
3892 {
|
|
|
3893 nkeys = recent_keys_ring_size;
|
|
|
3894 start = ((recent_keys_ring_index == nkeys) ? 0 : recent_keys_ring_index);
|
|
|
3895 }
|
|
|
3896
|
|
|
3897 if (nwanted < nkeys)
|
|
|
3898 {
|
|
|
3899 start += nkeys - nwanted;
|
|
|
3900 if (start >= recent_keys_ring_size)
|
|
|
3901 start -= recent_keys_ring_size;
|
|
|
3902 nkeys = nwanted;
|
|
|
3903 }
|
|
|
3904 else
|
|
|
3905 nwanted = nkeys;
|
|
|
3906
|
|
|
3907 val = make_vector (nwanted, Qnil);
|
|
|
3908
|
|
|
3909 for (i = 0, j = start; i < nkeys; i++)
|
|
|
3910 {
|
|
|
3911 Lisp_Object e = XVECTOR_DATA (Vrecent_keys_ring)[j];
|
|
|
3912
|
|
|
3913 if (NILP (e))
|
|
|
3914 abort ();
|
|
|
3915 XVECTOR_DATA (val)[i] = Fcopy_event (e, Qnil);
|
|
|
3916 if (++j >= recent_keys_ring_size)
|
|
|
3917 j = 0;
|
|
|
3918 }
|
|
|
3919 UNGCPRO;
|
|
|
3920 return val;
|
|
|
3921 }
|
|
|
3922
|
|
|
3923
|
|
|
3924 DEFUN ("recent-keys-ring-size", Frecent_keys_ring_size, 0, 0, 0, /*
|
|
|
3925 The maximum number of events `recent-keys' can return.
|
|
|
3926 */
|
|
|
3927 ())
|
|
|
3928 {
|
|
|
3929 return make_int (recent_keys_ring_size);
|
|
|
3930 }
|
|
|
3931
|
|
|
3932 DEFUN ("set-recent-keys-ring-size", Fset_recent_keys_ring_size, 1, 1, 0, /*
|
|
|
3933 Set the maximum number of events to be stored internally.
|
|
|
3934 */
|
|
|
3935 (size))
|
|
|
3936 {
|
|
|
3937 Lisp_Object new_vector = Qnil;
|
|
|
3938 int i, j, nkeys, start, min;
|
|
|
3939 struct gcpro gcpro1;
|
|
|
3940 GCPRO1 (new_vector);
|
|
|
3941
|
|
|
3942 CHECK_INT (size);
|
|
|
3943 if (XINT (size) <= 0)
|
|
|
3944 error ("Recent keys ring size must be positive");
|
|
|
3945 if (XINT (size) == recent_keys_ring_size)
|
|
|
3946 return size;
|
|
|
3947
|
|
|
3948 new_vector = make_vector (XINT (size), Qnil);
|
|
|
3949
|
|
|
3950 if (NILP (Vrecent_keys_ring))
|
|
|
3951 {
|
|
|
3952 Vrecent_keys_ring = new_vector;
|
|
|
3953 return size;
|
|
|
3954 }
|
|
|
3955
|
|
|
3956 if (NILP (XVECTOR_DATA (Vrecent_keys_ring)[recent_keys_ring_index]))
|
|
|
3957 /* This means the vector has not yet wrapped */
|
|
|
3958 {
|
|
|
3959 nkeys = recent_keys_ring_index;
|
|
|
3960 start = 0;
|
|
|
3961 }
|
|
|
3962 else
|
|
|
3963 {
|
|
|
3964 nkeys = recent_keys_ring_size;
|
|
|
3965 start = ((recent_keys_ring_index == nkeys) ? 0 : recent_keys_ring_index);
|
|
|
3966 }
|
|
|
3967
|
|
|
3968 if (XINT (size) > nkeys)
|
|
|
3969 min = nkeys;
|
|
|
3970 else
|
|
|
3971 min = XINT (size);
|
|
|
3972
|
|
|
3973 for (i = 0, j = start; i < min; i++)
|
|
|
3974 {
|
|
|
3975 XVECTOR_DATA (new_vector)[i] = XVECTOR_DATA (Vrecent_keys_ring)[j];
|
|
|
3976 if (++j >= recent_keys_ring_size)
|
|
|
3977 j = 0;
|
|
|
3978 }
|
|
|
3979 recent_keys_ring_size = XINT (size);
|
|
|
3980 recent_keys_ring_index = (i < recent_keys_ring_size) ? i : 0;
|
|
|
3981
|
|
|
3982 Vrecent_keys_ring = new_vector;
|
|
|
3983
|
|
|
3984 UNGCPRO;
|
|
|
3985 return size;
|
|
|
3986 }
|
|
|
3987
|
|
|
3988 /* Vthis_command_keys having value Qnil means that the next time
|
|
|
3989 push_this_command_keys is called, it should start over.
|
|
|
3990 The times at which the command-keys are reset
|
|
|
3991 (instead of merely being augmented) are pretty counterintuitive.
|
|
|
3992 (More specifically:
|
|
|
3993
|
|
|
3994 -- We do not reset this-command-keys when we finish reading a
|
|
|
3995 command. This is because some commands (e.g. C-u) act
|
|
|
3996 like command prefixes; they signal this by setting prefix-arg
|
|
|
3997 to non-nil.
|
|
|
3998 -- Therefore, we reset this-command-keys when we finish
|
|
|
3999 executing a command, unless prefix-arg is set.
|
|
|
4000 -- However, if we ever do a non-local exit out of a command
|
|
|
4001 loop (e.g. an error in a command), we need to reset
|
|
|
4002 this-command-keys. We do this by calling reset_this_command_keys()
|
|
|
4003 from cmdloop.c, whenever an error causes an invocation of the
|
|
|
4004 default error handler, and whenever there's a throw to top-level.)
|
|
|
4005 */
|
|
|
4006
|
|
|
4007 void
|
|
|
4008 reset_this_command_keys (Lisp_Object console, int clear_echo_area_p)
|
|
|
4009 {
|
|
|
4010 struct command_builder *command_builder =
|
|
|
4011 XCOMMAND_BUILDER (XCONSOLE (console)->command_builder);
|
|
|
4012
|
|
|
4013 reset_key_echo (command_builder, clear_echo_area_p);
|
|
|
4014
|
|
|
4015 deallocate_event_chain (Vthis_command_keys);
|
|
|
4016 Vthis_command_keys = Qnil;
|
|
|
4017 Vthis_command_keys_tail = Qnil;
|
|
|
4018
|
|
|
4019 reset_current_events (command_builder);
|
|
|
4020 }
|
|
|
4021
|
|
|
4022 static void
|
|
|
4023 push_this_command_keys (Lisp_Object event)
|
|
|
4024 {
|
|
|
4025 Lisp_Object new = Fmake_event (Qnil, Qnil);
|
|
|
4026
|
|
|
4027 Fcopy_event (event, new);
|
|
|
4028 enqueue_event (new, &Vthis_command_keys, &Vthis_command_keys_tail);
|
|
|
4029 }
|
|
|
4030
|
|
|
4031 /* The following two functions are used in call-interactively,
|
|
|
4032 for the @ and e specifications. We used to just use
|
|
|
4033 `current-mouse-event' (i.e. the last mouse event in this-command-keys),
|
|
|
4034 but FSF does it more generally so we follow their lead. */
|
|
|
4035
|
|
|
4036 Lisp_Object
|
|
|
4037 extract_this_command_keys_nth_mouse_event (int n)
|
|
|
4038 {
|
|
|
4039 Lisp_Object event;
|
|
|
4040
|
|
|
4041 EVENT_CHAIN_LOOP (event, Vthis_command_keys)
|
|
|
4042 {
|
|
|
4043 if (EVENTP (event)
|
|
|
4044 && (XEVENT_TYPE (event) == button_press_event
|
|
|
4045 || XEVENT_TYPE (event) == button_release_event
|
|
|
4046 || XEVENT_TYPE (event) == misc_user_event))
|
|
|
4047 {
|
|
|
4048 if (!n)
|
|
|
4049 {
|
|
|
4050 /* must copy to avoid an abort() in next_event_internal() */
|
|
|
4051 if (!NILP (XEVENT_NEXT (event)))
|
|
|
4052 return Fcopy_event (event, Qnil);
|
|
|
4053 else
|
|
|
4054 return event;
|
|
|
4055 }
|
|
|
4056 n--;
|
|
|
4057 }
|
|
|
4058 }
|
|
|
4059
|
|
|
4060 return Qnil;
|
|
|
4061 }
|
|
|
4062
|
|
|
4063 Lisp_Object
|
|
|
4064 extract_vector_nth_mouse_event (Lisp_Object vector, int n)
|
|
|
4065 {
|
|
|
4066 int i;
|
|
|
4067 int len = XVECTOR_LENGTH (vector);
|
|
|
4068
|
|
|
4069 for (i = 0; i < len; i++)
|
|
|
4070 {
|
|
|
4071 Lisp_Object event = XVECTOR_DATA (vector)[i];
|
|
|
4072 if (EVENTP (event))
|
|
|
4073 switch (XEVENT_TYPE (event))
|
|
|
4074 {
|
|
|
4075 case button_press_event :
|
|
|
4076 case button_release_event :
|
|
|
4077 case misc_user_event :
|
|
|
4078 if (n == 0)
|
|
|
4079 return event;
|
|
|
4080 n--;
|
|
|
4081 break;
|
|
|
4082 default:
|
|
|
4083 continue;
|
|
|
4084 }
|
|
|
4085 }
|
|
|
4086
|
|
|
4087 return Qnil;
|
|
|
4088 }
|
|
|
4089
|
|
|
4090 static void
|
|
|
4091 push_recent_keys (Lisp_Object event)
|
|
|
4092 {
|
|
|
4093 Lisp_Object e;
|
|
|
4094
|
|
|
4095 if (NILP (Vrecent_keys_ring))
|
|
|
4096 Vrecent_keys_ring = make_vector (recent_keys_ring_size, Qnil);
|
|
|
4097
|
|
|
4098 e = XVECTOR_DATA (Vrecent_keys_ring) [recent_keys_ring_index];
|
|
|
4099
|
|
|
4100 if (NILP (e))
|
|
|
4101 {
|
|
|
4102 e = Fmake_event (Qnil, Qnil);
|
|
|
4103 XVECTOR_DATA (Vrecent_keys_ring) [recent_keys_ring_index] = e;
|
|
|
4104 }
|
|
|
4105 Fcopy_event (event, e);
|
|
|
4106 if (++recent_keys_ring_index == recent_keys_ring_size)
|
|
|
4107 recent_keys_ring_index = 0;
|
|
|
4108 }
|
|
|
4109
|
|
|
4110
|
|
|
4111 static Lisp_Object
|
|
|
4112 current_events_into_vector (struct command_builder *command_builder)
|
|
|
4113 {
|
|
|
4114 Lisp_Object vector;
|
|
|
4115 Lisp_Object event;
|
|
|
4116 int n = event_chain_count (command_builder->current_events);
|
|
|
4117
|
|
|
4118 /* Copy the vector and the events in it. */
|
|
|
4119 /* No need to copy the events, since they're already copies, and
|
|
|
4120 nobody other than the command-builder has pointers to them */
|
|
|
4121 vector = make_vector (n, Qnil);
|
|
|
4122 n = 0;
|
|
|
4123 EVENT_CHAIN_LOOP (event, command_builder->current_events)
|
|
|
4124 XVECTOR_DATA (vector)[n++] = event;
|
|
|
4125 reset_command_builder_event_chain (command_builder);
|
|
|
4126 return vector;
|
|
|
4127 }
|
|
|
4128
|
|
|
4129
|
|
|
4130 /*
|
|
|
4131 Given the current state of the command builder and a new command event
|
|
|
4132 that has just been dispatched:
|
|
|
4133
|
|
|
4134 -- add the event to the event chain forming the current command
|
|
|
4135 (doing meta-translation as necessary)
|
|
|
4136 -- return the binding of this event chain; this will be one of:
|
|
|
4137 -- nil (there is no binding)
|
|
|
4138 -- a keymap (part of a command has been specified)
|
|
|
4139 -- a command (anything that satisfies `commandp'; this includes
|
|
|
4140 some symbols, lists, subrs, strings, vectors, and
|
|
|
4141 compiled-function objects)
|
|
|
4142 */
|
|
|
4143 static Lisp_Object
|
|
|
4144 lookup_command_event (struct command_builder *command_builder,
|
|
|
4145 Lisp_Object event, int allow_misc_user_events_p)
|
|
|
4146 {
|
|
|
4147 /* This function can GC */
|
|
|
4148 struct frame *f = selected_frame ();
|
|
|
4149 /* Clear output from previous command execution */
|
|
|
4150 if (!EQ (Qcommand, echo_area_status (f))
|
|
|
4151 /* but don't let mouse-up clear what mouse-down just printed */
|
|
|
4152 && (XEVENT (event)->event_type != button_release_event))
|
|
|
4153 clear_echo_area (f, Qnil, 0);
|
|
|
4154
|
|
|
4155 /* Add the given event to the command builder.
|
|
|
4156 Extra hack: this also updates the recent_keys_ring and Vthis_command_keys
|
|
|
4157 vectors to translate "ESC x" to "M-x" (for any "x" of course).
|
|
|
4158 */
|
|
|
4159 {
|
|
|
4160 Lisp_Object recent = command_builder->most_current_event;
|
|
|
4161
|
|
|
4162 if (EVENTP (recent)
|
|
|
4163 && event_matches_key_specifier_p (XEVENT (recent), Vmeta_prefix_char))
|
|
|
4164 {
|
|
|
4165 struct Lisp_Event *e;
|
|
|
4166 /* When we see a sequence like "ESC x", pretend we really saw "M-x".
|
|
|
4167 DoubleThink the recent-keys and this-command-keys as well. */
|
|
|
4168
|
|
|
4169 /* Modify the previous most-recently-pushed event on the command
|
|
|
4170 builder to be a copy of this one with the meta-bit set instead of
|
|
|
4171 pushing a new event.
|
|
|
4172 */
|
|
|
4173 Fcopy_event (event, recent);
|
|
|
4174 e = XEVENT (recent);
|
|
|
4175 if (e->event_type == key_press_event)
|
|
|
4176 e->event.key.modifiers |= MOD_META;
|
|
|
4177 else if (e->event_type == button_press_event
|
|
|
4178 || e->event_type == button_release_event)
|
|
|
4179 e->event.button.modifiers |= MOD_META;
|
|
|
4180 else
|
|
|
4181 abort ();
|
|
|
4182
|
|
|
4183 {
|
|
|
4184 int tckn = event_chain_count (Vthis_command_keys);
|
|
|
4185 if (tckn >= 2)
|
|
|
4186 /* ??? very strange if it's < 2. */
|
|
|
4187 this_command_keys_replace_suffix
|
|
|
4188 (event_chain_nth (Vthis_command_keys, tckn - 2),
|
|
|
4189 Fcopy_event (recent, Qnil));
|
|
|
4190 }
|
|
|
4191
|
|
|
4192 regenerate_echo_keys_from_this_command_keys (command_builder);
|
|
|
4193 }
|
|
|
4194 else
|
|
|
4195 {
|
|
|
4196 event = Fcopy_event (event, Fmake_event (Qnil, Qnil));
|
|
|
4197
|
|
|
4198 command_builder_append_event (command_builder, event);
|
|
|
4199 }
|
|
|
4200 }
|
|
|
4201
|
|
|
4202 {
|
|
|
4203 Lisp_Object leaf = command_builder_find_leaf (command_builder,
|
|
|
4204 allow_misc_user_events_p);
|
|
|
4205 struct gcpro gcpro1;
|
|
|
4206 GCPRO1 (leaf);
|
|
|
4207
|
|
|
4208 if (KEYMAPP (leaf))
|
|
|
4209 {
|
|
|
4210 if (!lw_menu_active)
|
|
|
4211 {
|
|
|
4212 Lisp_Object prompt = Fkeymap_prompt (leaf, Qt);
|
|
|
4213 if (STRINGP (prompt))
|
|
|
4214 {
|
|
|
4215 /* Append keymap prompt to key echo buffer */
|
|
|
4216 int buf_index = command_builder->echo_buf_index;
|
|
|
4217 Bytecount len = XSTRING_LENGTH (prompt);
|
|
|
4218
|
|
|
4219 if (len + buf_index + 1 <= command_builder->echo_buf_length)
|
|
|
4220 {
|
|
|
4221 Bufbyte *echo = command_builder->echo_buf + buf_index;
|
|
|
4222 memcpy (echo, XSTRING_DATA (prompt), len);
|
|
|
4223 echo[len] = 0;
|
|
|
4224 }
|
|
|
4225 maybe_echo_keys (command_builder, 1);
|
|
|
4226 }
|
|
|
4227 else
|
|
|
4228 maybe_echo_keys (command_builder, 0);
|
|
|
4229 }
|
|
|
4230 else if (!NILP (Vquit_flag)) {
|
|
|
4231 Lisp_Object quit_event = Fmake_event(Qnil, Qnil);
|
|
|
4232 struct Lisp_Event *e = XEVENT (quit_event);
|
|
|
4233 /* if quit happened during menu acceleration, pretend we read it */
|
|
|
4234 struct console *con = XCONSOLE (Fselected_console ());
|
|
|
4235 int ch = CONSOLE_QUIT_CHAR (con);
|
|
|
4236
|
|
|
4237 character_to_event (ch, e, con, 1, 1);
|
|
|
4238 e->channel = make_console (con);
|
|
|
4239
|
|
|
4240 enqueue_command_event (quit_event);
|
|
|
4241 Vquit_flag = Qnil;
|
|
|
4242 }
|
|
|
4243 }
|
|
|
4244 else if (!NILP (leaf))
|
|
|
4245 {
|
|
|
4246 if (EQ (Qcommand, echo_area_status (f))
|
|
|
4247 && command_builder->echo_buf_index > 0)
|
|
|
4248 {
|
|
|
4249 /* If we had been echoing keys, echo the last one (without
|
|
|
4250 the trailing dash) and redisplay before executing the
|
|
|
4251 command. */
|
|
|
4252 command_builder->echo_buf[command_builder->echo_buf_index] = 0;
|
|
|
4253 maybe_echo_keys (command_builder, 1);
|
|
|
4254 Fsit_for (Qzero, Qt);
|
|
|
4255 }
|
|
|
4256 }
|
|
|
4257 RETURN_UNGCPRO (leaf);
|
|
|
4258 }
|
|
|
4259 }
|
|
|
4260
|
|
|
4261 static void
|
|
|
4262 execute_command_event (struct command_builder *command_builder,
|
|
|
4263 Lisp_Object event)
|
|
|
4264 {
|
|
|
4265 /* This function can GC */
|
|
|
4266 struct console *con = XCONSOLE (command_builder->console);
|
|
|
4267 struct gcpro gcpro1;
|
|
|
4268
|
|
|
4269 GCPRO1 (event); /* event may be freshly created */
|
|
|
4270 reset_current_events (command_builder);
|
|
|
4271
|
|
|
4272 switch (XEVENT (event)->event_type)
|
|
|
4273 {
|
|
|
4274 case key_press_event:
|
|
|
4275 Vcurrent_mouse_event = Qnil;
|
|
|
4276 break;
|
|
|
4277 case button_press_event:
|
|
|
4278 case button_release_event:
|
|
|
4279 case misc_user_event:
|
|
|
4280 Vcurrent_mouse_event = Fcopy_event (event, Qnil);
|
|
|
4281 break;
|
|
|
4282 default: break;
|
|
|
4283 }
|
|
|
4284
|
|
|
4285 /* Store the last-command-event. The semantics of this is that it
|
|
|
4286 is the last event most recently involved in command-lookup. */
|
|
|
4287 if (!EVENTP (Vlast_command_event))
|
|
|
4288 Vlast_command_event = Fmake_event (Qnil, Qnil);
|
|
|
4289 if (XEVENT (Vlast_command_event)->event_type == dead_event)
|
|
|
4290 {
|
|
|
4291 Vlast_command_event = Fmake_event (Qnil, Qnil);
|
|
|
4292 error ("Someone deallocated the last-command-event!");
|
|
|
4293 }
|
|
|
4294
|
|
|
4295 if (! EQ (event, Vlast_command_event))
|
|
|
4296 Fcopy_event (event, Vlast_command_event);
|
|
|
4297
|
|
|
4298 /* Note that last-command-char will never have its high-bit set, in
|
|
|
4299 an effort to sidestep the ambiguity between M-x and oslash. */
|
|
|
4300 Vlast_command_char = Fevent_to_character (Vlast_command_event,
|
|
|
4301 Qnil, Qnil, Qnil);
|
|
|
4302
|
|
|
4303 /* Actually call the command, with all sorts of hair to preserve or clear
|
|
|
4304 the echo-area and region as appropriate and call the pre- and post-
|
|
|
4305 command-hooks. */
|
|
|
4306 {
|
|
|
4307 int old_kbd_macro = con->kbd_macro_end;
|
|
|
4308 struct window *w = XWINDOW (Fselected_window (Qnil));
|
|
|
4309
|
|
|
4310 /* We're executing a new command, so the old value is irrelevant. */
|
|
|
4311 zmacs_region_stays = 0;
|
|
|
4312
|
|
|
4313 /* If the previous command tried to force a specific window-start,
|
|
|
4314 reset the flag in case this command moves point far away from
|
|
|
4315 that position. Also, reset the window's buffer's change
|
|
|
4316 information so that we don't trigger an incremental update. */
|
|
|
4317 if (w->force_start)
|
|
|
4318 {
|
|
|
4319 w->force_start = 0;
|
|
|
4320 buffer_reset_changes (XBUFFER (w->buffer));
|
|
|
4321 }
|
|
|
4322
|
|
|
4323 pre_command_hook ();
|
|
|
4324
|
|
|
4325 if (XEVENT (event)->event_type == misc_user_event)
|
|
|
4326 {
|
|
|
4327 call1 (XEVENT (event)->event.eval.function,
|
|
|
4328 XEVENT (event)->event.eval.object);
|
|
|
4329 }
|
|
|
4330 else
|
|
|
4331 {
|
|
|
4332 Fcommand_execute (Vthis_command, Qnil, Qnil);
|
|
|
4333 }
|
|
|
4334
|
|
|
4335 post_command_hook ();
|
|
|
4336
|
|
|
4337 #if 0 /* #### here was an attempted fix that didn't work */
|
|
|
4338 if (XEVENT (event)->event_type == misc_user_event)
|
|
|
4339 ;
|
|
|
4340 else
|
|
|
4341 #endif
|
|
|
4342 if (!NILP (con->prefix_arg))
|
|
|
4343 {
|
|
|
4344 /* Commands that set the prefix arg don't update last-command, don't
|
|
|
4345 reset the echoing state, and don't go into keyboard macros unless
|
|
|
4346 followed by another command. */
|
|
|
4347 maybe_echo_keys (command_builder, 0);
|
|
|
4348
|
|
|
4349 /* If we're recording a keyboard macro, and the last command
|
|
|
4350 executed set a prefix argument, then decrement the pointer to
|
|
|
4351 the "last character really in the macro" to be just before this
|
|
|
4352 command. This is so that the ^U in "^U ^X )" doesn't go onto
|
|
|
4353 the end of macro. */
|
|
|
4354 if (!NILP (con->defining_kbd_macro))
|
|
|
4355 con->kbd_macro_end = old_kbd_macro;
|
|
|
4356 }
|
|
|
4357 else
|
|
|
4358 {
|
|
|
4359 /* Start a new command next time */
|
|
|
4360 Vlast_command = Vthis_command;
|
|
|
4361 /* Emacs 18 doesn't unconditionally clear the echoed keystrokes,
|
|
|
4362 so we don't either */
|
|
|
4363 reset_this_command_keys (make_console (con), 0);
|
|
|
4364 }
|
|
|
4365 }
|
|
|
4366
|
|
|
4367 UNGCPRO;
|
|
|
4368 }
|
|
|
4369
|
|
|
4370 /* Run the pre command hook. */
|
|
|
4371
|
|
|
4372 static void
|
|
|
4373 pre_command_hook (void)
|
|
|
4374 {
|
|
|
4375 last_point_position = BUF_PT (current_buffer);
|
|
|
4376 XSETBUFFER (last_point_position_buffer, current_buffer);
|
|
|
4377 /* This function can GC */
|
|
|
4378 safe_run_hook_trapping_errors
|
|
|
4379 ("Error in `pre-command-hook' (setting hook to nil)",
|
|
|
4380 Qpre_command_hook, 1);
|
|
|
4381 }
|
|
|
4382
|
|
|
4383 /* Run the post command hook. */
|
|
|
4384
|
|
|
4385 static void
|
|
|
4386 post_command_hook (void)
|
|
|
4387 {
|
|
|
4388 /* This function can GC */
|
|
|
4389 /* Turn off region highlighting unless this command requested that
|
|
|
4390 it be left on, or we're in the minibuffer. We don't turn it off
|
|
|
4391 when we're in the minibuffer so that things like M-x write-region
|
|
|
4392 still work!
|
|
|
4393
|
|
|
4394 This could be done via a function on the post-command-hook, but
|
|
|
4395 we don't want the user to accidentally remove it.
|
|
|
4396 */
|
|
|
4397
|
|
|
4398 Lisp_Object win = Fselected_window (Qnil);
|
|
|
4399
|
|
|
4400 #if 0
|
|
|
4401 /* If the last command deleted the frame, `win' might be nil.
|
|
|
4402 It seems safest to do nothing in this case. */
|
|
|
4403 /* ### This doesn't really fix the problem,
|
|
|
4404 if delete-frame is called by some hook */
|
|
|
4405 if (NILP (win))
|
|
|
4406 return;
|
|
|
4407 #endif
|
|
|
4408
|
|
|
4409 if (! zmacs_region_stays
|
|
|
4410 && (!MINI_WINDOW_P (XWINDOW (win))
|
|
|
4411 || EQ (zmacs_region_buffer (), WINDOW_BUFFER (XWINDOW (win)))))
|
|
|
4412 zmacs_deactivate_region ();
|
|
|
4413 else
|
|
|
4414 zmacs_update_region ();
|
|
|
4415
|
|
|
4416 safe_run_hook_trapping_errors
|
|
|
4417 ("Error in `post-command-hook' (setting hook to nil)",
|
|
|
4418 Qpost_command_hook, 1);
|
|
|
4419
|
|
|
4420 #ifdef DEFERRED_ACTION_CRAP
|
|
|
4421 if (!NILP (Vdeferred_action_list))
|
|
|
4422 call0 (Vdeferred_action_function);
|
|
|
4423 #endif
|
|
|
4424
|
|
|
4425 #ifdef ILL_CONCEIVED_HOOK
|
|
|
4426 if (NILP (Vunread_command_events)
|
|
|
4427 && NILP (Vexecuting_macro)
|
|
|
4428 && !NILP (Vpost_command_idle_hook)
|
|
|
4429 && !NILP (Fsit_for (make_float ((double) post_command_idle_delay
|
|
|
4430 / 1000000), Qnil)))
|
|
|
4431 safe_run_hook_trapping_errors
|
|
|
4432 ("Error in `post-command-idle-hook' (setting hook to nil)",
|
|
|
4433 Qpost_command_idle_hook, 1);
|
|
|
4434 #endif
|
|
|
4435
|
|
|
4436 #if 0 /* FSFmacs */
|
|
|
4437 if (!NILP (current_buffer->mark_active))
|
|
|
4438 {
|
|
|
4439 if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode))
|
|
|
4440 {
|
|
|
4441 current_buffer->mark_active = Qnil;
|
|
|
4442 run_hook (intern ("deactivate-mark-hook"));
|
|
|
4443 }
|
|
|
4444 else if (current_buffer != prev_buffer ||
|
|
|
4445 BUF_MODIFF (current_buffer) != prev_modiff)
|
|
|
4446 run_hook (intern ("activate-mark-hook"));
|
|
|
4447 }
|
|
|
4448 #endif /* FSFmacs */
|
|
|
4449
|
|
|
4450 /* #### Kludge!!! This is necessary to make sure that things
|
|
|
4451 are properly positioned even if post-command-hook moves point.
|
|
|
4452 #### There should be a cleaner way of handling this. */
|
|
|
4453 call0 (Qauto_show_make_point_visible);
|
|
|
4454 }
|
|
|
4455
|
|
|
4456
|
|
|
4457 DEFUN ("dispatch-event", Fdispatch_event, 1, 1, 0, /*
|
|
|
4458 Given an event object as returned by `next-event', execute it.
|
|
|
4459
|
|
|
4460 Key-press, button-press, and button-release events get accumulated
|
|
|
4461 until a complete key sequence (see `read-key-sequence') is reached,
|
|
|
4462 at which point the sequence is looked up in the current keymaps and
|
|
|
4463 acted upon.
|
|
|
4464
|
|
|
4465 Mouse motion events cause the low-level handling function stored in
|
|
|
4466 `mouse-motion-handler' to be called. (There are very few circumstances
|
|
|
4467 under which you should change this handler. Use `mode-motion-hook'
|
|
|
4468 instead.)
|
|
|
4469
|
|
|
4470 Menu, timeout, and eval events cause the associated function or handler
|
|
|
4471 to be called.
|
|
|
4472
|
|
|
4473 Process events cause the subprocess's output to be read and acted upon
|
|
|
4474 appropriately (see `start-process').
|
|
|
4475
|
|
|
4476 Magic events are handled as necessary.
|
|
|
4477 */
|
|
|
4478 (event))
|
|
|
4479 {
|
|
|
4480 /* This function can GC */
|
|
|
4481 struct command_builder *command_builder;
|
|
|
4482 struct Lisp_Event *ev;
|
|
|
4483 Lisp_Object console;
|
|
|
4484 Lisp_Object channel;
|
|
|
4485
|
|
|
4486 CHECK_LIVE_EVENT (event);
|
|
|
4487 ev = XEVENT (event);
|
|
|
4488
|
|
|
4489 /* events on dead channels get silently eaten */
|
|
|
4490 channel = EVENT_CHANNEL (ev);
|
|
|
4491 if (object_dead_p (channel))
|
|
|
4492 return Qnil;
|
|
|
4493
|
|
|
4494 /* Some events don't have channels (e.g. eval events). */
|
|
|
4495 console = CDFW_CONSOLE (channel);
|
|
|
4496 if (NILP (console))
|
|
|
4497 console = Vselected_console;
|
|
|
4498 else if (!EQ (console, Vselected_console))
|
|
|
4499 Fselect_console (console);
|
|
|
4500
|
|
|
4501 command_builder = XCOMMAND_BUILDER (XCONSOLE (console)->command_builder);
|
|
|
4502 switch (XEVENT (event)->event_type)
|
|
|
4503 {
|
|
|
4504 case button_press_event:
|
|
|
4505 case button_release_event:
|
|
|
4506 case key_press_event:
|
|
|
4507 {
|
|
|
4508 Lisp_Object leaf = lookup_command_event (command_builder, event, 1);
|
|
|
4509
|
|
|
4510 if (KEYMAPP (leaf))
|
|
|
4511 /* Incomplete key sequence */
|
|
|
4512 break;
|
|
|
4513 if (NILP (leaf))
|
|
|
4514 {
|
|
|
4515 /* At this point, we know that the sequence is not bound to a
|
|
|
4516 command. Normally, we beep and print a message informing the
|
|
|
4517 user of this. But we do not beep or print a message when:
|
|
|
4518
|
|
|
4519 o the last event in this sequence is a mouse-up event; or
|
|
|
4520 o the last event in this sequence is a mouse-down event and
|
|
|
4521 there is a binding for the mouse-up version.
|
|
|
4522
|
|
|
4523 That is, if the sequence ``C-x button1'' is typed, and is not
|
|
|
4524 bound to a command, but the sequence ``C-x button1up'' is bound
|
|
|
4525 to a command, we do not complain about the ``C-x button1''
|
|
|
4526 sequence. If neither ``C-x button1'' nor ``C-x button1up'' is
|
|
|
4527 bound to a command, then we complain about the ``C-x button1''
|
|
|
4528 sequence, but later will *not* complain about the
|
|
|
4529 ``C-x button1up'' sequence, which would be redundant.
|
|
|
4530
|
|
|
4531 This is pretty hairy, but I think it's the most intuitive
|
|
|
4532 behavior.
|
|
|
4533 */
|
|
|
4534 Lisp_Object terminal = command_builder->most_current_event;
|
|
|
4535
|
|
|
4536 if (XEVENT_TYPE (terminal) == button_press_event)
|
|
|
4537 {
|
|
|
4538 int no_bitching;
|
|
|
4539 /* Temporarily pretend the last event was an "up" instead of a
|
|
|
4540 "down", and look up its binding. */
|
|
|
4541 XEVENT_TYPE (terminal) = button_release_event;
|
|
|
4542 /* If the "up" version is bound, don't complain. */
|
|
|
4543 no_bitching
|
|
|
4544 = !NILP (command_builder_find_leaf (command_builder, 0));
|
|
|
4545 /* Undo the temporary changes we just made. */
|
|
|
4546 XEVENT_TYPE (terminal) = button_press_event;
|
|
|
4547 if (no_bitching)
|
|
|
4548 {
|
|
|
4549 /* Pretend this press was not seen (treat as a prefix) */
|
|
|
4550 if (EQ (command_builder->current_events, terminal))
|
|
|
4551 {
|
|
|
4552 reset_current_events (command_builder);
|
|
|
4553 }
|
|
|
4554 else
|
|
|
4555 {
|
|
|
4556 Lisp_Object eve;
|
|
|
4557
|
|
|
4558 EVENT_CHAIN_LOOP (eve, command_builder->current_events)
|
|
|
4559 if (EQ (XEVENT_NEXT (eve), terminal))
|
|
|
4560 break;
|
|
|
4561
|
|
|
4562 Fdeallocate_event (command_builder->
|
|
|
4563 most_current_event);
|
|
|
4564 XSET_EVENT_NEXT (eve, Qnil);
|
|
|
4565 command_builder->most_current_event = eve;
|
|
|
4566 }
|
|
|
4567 maybe_echo_keys (command_builder, 1);
|
|
|
4568 break;
|
|
|
4569 }
|
|
|
4570 }
|
|
|
4571
|
|
|
4572 /* Complain that the typed sequence is not defined, if this is the
|
|
|
4573 kind of sequence that warrants a complaint. */
|
|
|
4574 XCONSOLE (console)->defining_kbd_macro = Qnil;
|
|
|
4575 XCONSOLE (console)->prefix_arg = Qnil;
|
|
|
4576 /* Don't complain about undefined button-release events */
|
|
|
4577 if (XEVENT_TYPE (terminal) != button_release_event)
|
|
|
4578 {
|
|
|
4579 Lisp_Object keys = current_events_into_vector (command_builder);
|
|
|
4580 struct gcpro gcpro1;
|
|
|
4581
|
|
|
4582 /* Run the pre-command-hook before barfing about an undefined
|
|
|
4583 key. */
|
|
|
4584 Vthis_command = Qnil;
|
|
|
4585 GCPRO1 (keys);
|
|
|
4586 pre_command_hook ();
|
|
|
4587 UNGCPRO;
|
|
|
4588 /* The post-command-hook doesn't run. */
|
|
|
4589 Fsignal (Qundefined_keystroke_sequence, list1 (keys));
|
|
|
4590 }
|
|
|
4591 /* Reset the command builder for reading the next sequence. */
|
|
|
4592 reset_this_command_keys (console, 1);
|
|
|
4593 }
|
|
|
4594 else /* key sequence is bound to a command */
|
|
|
4595 {
|
|
430
|
4596 int magic_undo = 0;
|
|
|
4597 int magic_undo_count = 20;
|
|
|
4598
|
|
428
|
4599 Vthis_command = leaf;
|
|
430
|
4600
|
|
428
|
4601 /* Don't push an undo boundary if the command set the prefix arg,
|
|
|
4602 or if we are executing a keyboard macro, or if in the
|
|
|
4603 minibuffer. If the command we are about to execute is
|
|
|
4604 self-insert, it's tricky: up to 20 consecutive self-inserts may
|
|
|
4605 be done without an undo boundary. This counter is reset as
|
|
|
4606 soon as a command other than self-insert-command is executed.
|
|
430
|
4607
|
|
|
4608 Programmers can also use the `self-insert-undo-magic'
|
|
|
4609 property to install that behaviour on functions other
|
|
|
4610 than `self-insert-command', or to change the magic
|
|
|
4611 number 20 to something else. */
|
|
|
4612
|
|
|
4613 if (SYMBOLP (leaf))
|
|
|
4614 {
|
|
|
4615 Lisp_Object prop = Fget (leaf, Qself_insert_defer_undo, Qnil);
|
|
|
4616 if (NATNUMP (prop))
|
|
|
4617 magic_undo = 1, magic_undo_count = XINT (prop);
|
|
|
4618 else if (!NILP (prop))
|
|
|
4619 magic_undo = 1;
|
|
|
4620 else if (EQ (leaf, Qself_insert_command))
|
|
|
4621 magic_undo = 1;
|
|
|
4622 }
|
|
|
4623
|
|
|
4624 if (!magic_undo)
|
|
428
|
4625 command_builder->self_insert_countdown = 0;
|
|
|
4626 if (NILP (XCONSOLE (console)->prefix_arg)
|
|
|
4627 && NILP (Vexecuting_macro)
|
|
|
4628 #if 0
|
|
|
4629 /* This was done in the days when there was no undo
|
|
|
4630 in the minibuffer. If we don't disable this code,
|
|
|
4631 then each instance of "undo" undoes everything in
|
|
|
4632 the minibuffer. */
|
|
|
4633 && !EQ (minibuf_window, Fselected_window (Qnil))
|
|
|
4634 #endif
|
|
|
4635 && command_builder->self_insert_countdown == 0)
|
|
|
4636 Fundo_boundary ();
|
|
|
4637
|
|
430
|
4638 if (magic_undo)
|
|
428
|
4639 {
|
|
|
4640 if (--command_builder->self_insert_countdown < 0)
|
|
430
|
4641 command_builder->self_insert_countdown = magic_undo_count;
|
|
428
|
4642 }
|
|
|
4643 execute_command_event
|
|
|
4644 (command_builder,
|
|
|
4645 internal_equal (event, command_builder-> most_current_event, 0)
|
|
|
4646 ? event
|
|
|
4647 /* Use the translated event that was most recently seen.
|
|
|
4648 This way, last-command-event becomes f1 instead of
|
|
|
4649 the P from ESC O P. But we must copy it, else we'll
|
|
|
4650 lose when the command-builder events are deallocated. */
|
|
|
4651 : Fcopy_event (command_builder-> most_current_event, Qnil));
|
|
|
4652 }
|
|
|
4653 break;
|
|
|
4654 }
|
|
|
4655 case misc_user_event:
|
|
|
4656 {
|
|
|
4657 /* Jamie said:
|
|
|
4658
|
|
|
4659 We could just always use the menu item entry, whatever it is, but
|
|
|
4660 this might break some Lisp code that expects `this-command' to
|
|
|
4661 always contain a symbol. So only store it if this is a simple
|
|
|
4662 `call-interactively' sort of menu item.
|
|
|
4663
|
|
|
4664 But this is bogus. `this-command' could be a string or vector
|
|
|
4665 anyway (for keyboard macros). There's even one instance
|
|
|
4666 (in pending-del.el) of `this-command' getting set to a cons
|
|
|
4667 (a lambda expression). So in the `eval' case I'll just
|
|
|
4668 convert it into a lambda expression.
|
|
|
4669 */
|
|
|
4670 if (EQ (XEVENT (event)->event.eval.function, Qcall_interactively)
|
|
|
4671 && SYMBOLP (XEVENT (event)->event.eval.object))
|
|
|
4672 Vthis_command = XEVENT (event)->event.eval.object;
|
|
|
4673 else if (EQ (XEVENT (event)->event.eval.function, Qeval))
|
|
|
4674 Vthis_command =
|
|
|
4675 Fcons (Qlambda, Fcons (Qnil, XEVENT (event)->event.eval.object));
|
|
|
4676 else if (SYMBOLP (XEVENT (event)->event.eval.function))
|
|
|
4677 /* A scrollbar command or the like. */
|
|
|
4678 Vthis_command = XEVENT (event)->event.eval.function;
|
|
|
4679 else
|
|
|
4680 /* Huh? */
|
|
|
4681 Vthis_command = Qnil;
|
|
|
4682
|
|
|
4683 /* clear the echo area */
|
|
|
4684 reset_key_echo (command_builder, 1);
|
|
|
4685
|
|
|
4686 command_builder->self_insert_countdown = 0;
|
|
|
4687 if (NILP (XCONSOLE (console)->prefix_arg)
|
|
|
4688 && NILP (Vexecuting_macro)
|
|
|
4689 && !EQ (minibuf_window, Fselected_window (Qnil)))
|
|
|
4690 Fundo_boundary ();
|
|
|
4691 execute_command_event (command_builder, event);
|
|
|
4692 break;
|
|
|
4693 }
|
|
|
4694 default:
|
|
|
4695 {
|
|
|
4696 execute_internal_event (event);
|
|
|
4697 break;
|
|
|
4698 }
|
|
|
4699 }
|
|
|
4700 return Qnil;
|
|
|
4701 }
|
|
|
4702
|
|
|
4703 DEFUN ("read-key-sequence", Fread_key_sequence, 1, 3, 0, /*
|
|
|
4704 Read a sequence of keystrokes or mouse clicks.
|
|
|
4705 Returns a vector of the event objects read. The vector and the event
|
|
|
4706 objects it contains are freshly created (and will not be side-effected
|
|
|
4707 by subsequent calls to this function).
|
|
|
4708
|
|
|
4709 The sequence read is sufficient to specify a non-prefix command starting
|
|
|
4710 from the current local and global keymaps. A C-g typed while in this
|
|
|
4711 function is treated like any other character, and `quit-flag' is not set.
|
|
|
4712
|
|
|
4713 First arg PROMPT is a prompt string. If nil, do not prompt specially.
|
|
|
4714 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echoes
|
|
|
4715 as a continuation of the previous key.
|
|
|
4716
|
|
|
4717 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
|
|
|
4718 convert the last event to lower case. (Normally any upper case event
|
|
|
4719 is converted to lower case if the original event is undefined and the lower
|
|
|
4720 case equivalent is defined.) This argument is provided mostly for
|
|
|
4721 FSF compatibility; the equivalent effect can be achieved more generally
|
|
|
4722 by binding `retry-undefined-key-binding-unshifted' to nil around the
|
|
|
4723 call to `read-key-sequence'.
|
|
|
4724
|
|
|
4725 A C-g typed while in this function is treated like any other character,
|
|
|
4726 and `quit-flag' is not set.
|
|
|
4727
|
|
|
4728 If the user selects a menu item while we are prompting for a key-sequence,
|
|
|
4729 the returned value will be a vector of a single menu-selection event.
|
|
|
4730 An error will be signalled if you pass this value to `lookup-key' or a
|
|
|
4731 related function.
|
|
|
4732
|
|
|
4733 `read-key-sequence' checks `function-key-map' for function key
|
|
|
4734 sequences, where they wouldn't conflict with ordinary bindings. See
|
|
|
4735 `function-key-map' for more details.
|
|
|
4736 */
|
|
|
4737 (prompt, continue_echo, dont_downcase_last))
|
|
|
4738 {
|
|
|
4739 /* This function can GC */
|
|
|
4740 struct console *con = XCONSOLE (Vselected_console); /* #### correct?
|
|
|
4741 Probably not -- see
|
|
|
4742 comment in
|
|
|
4743 next-event */
|
|
|
4744 struct command_builder *command_builder =
|
|
|
4745 XCOMMAND_BUILDER (con->command_builder);
|
|
|
4746 Lisp_Object result;
|
|
|
4747 Lisp_Object event = Fmake_event (Qnil, Qnil);
|
|
|
4748 int speccount = specpdl_depth ();
|
|
|
4749 struct gcpro gcpro1;
|
|
|
4750 GCPRO1 (event);
|
|
|
4751
|
|
|
4752 if (!NILP (prompt))
|
|
|
4753 CHECK_STRING (prompt);
|
|
|
4754 /* else prompt = Fkeymap_prompt (current_buffer->keymap); may GC */
|
|
|
4755 QUIT;
|
|
|
4756
|
|
|
4757 if (NILP (continue_echo))
|
|
|
4758 reset_this_command_keys (make_console (con), 1);
|
|
|
4759
|
|
|
4760 specbind (Qinhibit_quit, Qt);
|
|
|
4761
|
|
|
4762 if (!NILP (dont_downcase_last))
|
|
|
4763 specbind (Qretry_undefined_key_binding_unshifted, Qnil);
|
|
|
4764
|
|
|
4765 for (;;)
|
|
|
4766 {
|
|
|
4767 Fnext_event (event, prompt);
|
|
|
4768 /* restore the selected-console damage */
|
|
|
4769 con = event_console_or_selected (event);
|
|
|
4770 command_builder = XCOMMAND_BUILDER (con->command_builder);
|
|
|
4771 if (! command_event_p (event))
|
|
|
4772 execute_internal_event (event);
|
|
|
4773 else
|
|
|
4774 {
|
|
|
4775 if (XEVENT (event)->event_type == misc_user_event)
|
|
|
4776 reset_current_events (command_builder);
|
|
|
4777 result = lookup_command_event (command_builder, event, 1);
|
|
|
4778 if (!KEYMAPP (result))
|
|
|
4779 {
|
|
|
4780 result = current_events_into_vector (command_builder);
|
|
|
4781 reset_key_echo (command_builder, 0);
|
|
|
4782 break;
|
|
|
4783 }
|
|
|
4784 prompt = Qnil;
|
|
|
4785 }
|
|
|
4786 }
|
|
|
4787
|
|
|
4788 Vquit_flag = Qnil; /* In case we read a ^G; do not call check_quit() here */
|
|
|
4789 Fdeallocate_event (event);
|
|
|
4790 RETURN_UNGCPRO (unbind_to (speccount, result));
|
|
|
4791 }
|
|
|
4792
|
|
|
4793 DEFUN ("this-command-keys", Fthis_command_keys, 0, 0, 0, /*
|
|
|
4794 Return a vector of the keyboard or mouse button events that were used
|
|
|
4795 to invoke this command. This copies the vector and the events; it is safe
|
|
|
4796 to keep and modify them.
|
|
|
4797 */
|
|
|
4798 ())
|
|
|
4799 {
|
|
|
4800 Lisp_Object event;
|
|
|
4801 Lisp_Object result;
|
|
|
4802 int len;
|
|
|
4803
|
|
|
4804 if (NILP (Vthis_command_keys))
|
|
|
4805 return make_vector (0, Qnil);
|
|
|
4806
|
|
|
4807 len = event_chain_count (Vthis_command_keys);
|
|
|
4808
|
|
|
4809 result = make_vector (len, Qnil);
|
|
|
4810 len = 0;
|
|
|
4811 EVENT_CHAIN_LOOP (event, Vthis_command_keys)
|
|
|
4812 XVECTOR_DATA (result)[len++] = Fcopy_event (event, Qnil);
|
|
|
4813 return result;
|
|
|
4814 }
|
|
|
4815
|
|
|
4816 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, 0, 0, 0, /*
|
|
|
4817 Used for complicated reasons in `universal-argument-other-key'.
|
|
|
4818
|
|
|
4819 `universal-argument-other-key' rereads the event just typed.
|
|
|
4820 It then gets translated through `function-key-map'.
|
|
|
4821 The translated event gets included in the echo area and in
|
|
|
4822 the value of `this-command-keys' in addition to the raw original event.
|
|
|
4823 That is not right.
|
|
|
4824
|
|
|
4825 Calling this function directs the translated event to replace
|
|
|
4826 the original event, so that only one version of the event actually
|
|
430
|
4827 appears in the echo area and in the value of `this-command-keys'.
|
|
428
|
4828 */
|
|
|
4829 ())
|
|
|
4830 {
|
|
|
4831 /* #### I don't understand this at all, so currently it does nothing.
|
|
|
4832 If there is ever a problem, maybe someone should investigate. */
|
|
|
4833 return Qnil;
|
|
|
4834 }
|
|
|
4835
|
|
|
4836
|
|
|
4837 static void
|
|
|
4838 dribble_out_event (Lisp_Object event)
|
|
|
4839 {
|
|
|
4840 if (NILP (Vdribble_file))
|
|
|
4841 return;
|
|
|
4842
|
|
|
4843 if (XEVENT (event)->event_type == key_press_event &&
|
|
|
4844 !XEVENT (event)->event.key.modifiers)
|
|
|
4845 {
|
|
|
4846 Lisp_Object keysym = XEVENT (event)->event.key.keysym;
|
|
|
4847 if (CHARP (XEVENT (event)->event.key.keysym))
|
|
|
4848 {
|
|
|
4849 Emchar ch = XCHAR (keysym);
|
|
|
4850 Bufbyte str[MAX_EMCHAR_LEN];
|
|
|
4851 Bytecount len = set_charptr_emchar (str, ch);
|
|
|
4852 Lstream_write (XLSTREAM (Vdribble_file), str, len);
|
|
|
4853 }
|
|
|
4854 else if (string_char_length (XSYMBOL (keysym)->name) == 1)
|
|
|
4855 /* one-char key events are printed with just the key name */
|
|
|
4856 Fprinc (keysym, Vdribble_file);
|
|
|
4857 else if (EQ (keysym, Qreturn))
|
|
|
4858 Lstream_putc (XLSTREAM (Vdribble_file), '\n');
|
|
|
4859 else if (EQ (keysym, Qspace))
|
|
|
4860 Lstream_putc (XLSTREAM (Vdribble_file), ' ');
|
|
|
4861 else
|
|
|
4862 Fprinc (event, Vdribble_file);
|
|
|
4863 }
|
|
|
4864 else
|
|
|
4865 Fprinc (event, Vdribble_file);
|
|
|
4866 Lstream_flush (XLSTREAM (Vdribble_file));
|
|
|
4867 }
|
|
|
4868
|
|
|
4869 DEFUN ("open-dribble-file", Fopen_dribble_file, 1, 1,
|
|
|
4870 "FOpen dribble file: ", /*
|
|
|
4871 Start writing all keyboard characters to a dribble file called FILE.
|
|
|
4872 If FILE is nil, close any open dribble file.
|
|
|
4873 */
|
|
|
4874 (file))
|
|
|
4875 {
|
|
|
4876 /* This function can GC */
|
|
|
4877 /* XEmacs change: always close existing dribble file. */
|
|
|
4878 /* FSFmacs uses FILE *'s here. With lstreams, that's unnecessary. */
|
|
|
4879 if (!NILP (Vdribble_file))
|
|
|
4880 {
|
|
|
4881 Lstream_close (XLSTREAM (Vdribble_file));
|
|
|
4882 Vdribble_file = Qnil;
|
|
|
4883 }
|
|
|
4884 if (!NILP (file))
|
|
|
4885 {
|
|
|
4886 int fd;
|
|
|
4887
|
|
|
4888 file = Fexpand_file_name (file, Qnil);
|
|
|
4889 fd = open ((char*) XSTRING_DATA (file),
|
|
|
4890 O_WRONLY | O_TRUNC | O_CREAT | OPEN_BINARY,
|
|
|
4891 CREAT_MODE);
|
|
|
4892 if (fd < 0)
|
|
|
4893 error ("Unable to create dribble file");
|
|
|
4894 Vdribble_file = make_filedesc_output_stream (fd, 0, 0, LSTR_CLOSING);
|
|
|
4895 #ifdef MULE
|
|
|
4896 Vdribble_file =
|
|
|
4897 make_encoding_output_stream (XLSTREAM (Vdribble_file),
|
|
|
4898 Fget_coding_system (Qescape_quoted));
|
|
|
4899 #endif
|
|
|
4900 }
|
|
|
4901 return Qnil;
|
|
|
4902 }
|
|
|
4903
|
|
|
4904
|
|
|
4905 /************************************************************************/
|
|
|
4906 /* initialization */
|
|
|
4907 /************************************************************************/
|
|
|
4908
|
|
|
4909 void
|
|
|
4910 syms_of_event_stream (void)
|
|
|
4911 {
|
|
|
4912 defsymbol (&Qdisabled, "disabled");
|
|
|
4913 defsymbol (&Qcommand_event_p, "command-event-p");
|
|
|
4914
|
|
|
4915 deferror (&Qundefined_keystroke_sequence, "undefined-keystroke-sequence",
|
|
|
4916 "Undefined keystroke sequence", Qerror);
|
|
|
4917
|
|
|
4918 DEFSUBR (Frecent_keys);
|
|
|
4919 DEFSUBR (Frecent_keys_ring_size);
|
|
|
4920 DEFSUBR (Fset_recent_keys_ring_size);
|
|
|
4921 DEFSUBR (Finput_pending_p);
|
|
|
4922 DEFSUBR (Fenqueue_eval_event);
|
|
|
4923 DEFSUBR (Fnext_event);
|
|
|
4924 DEFSUBR (Fnext_command_event);
|
|
|
4925 DEFSUBR (Fdiscard_input);
|
|
|
4926 DEFSUBR (Fsit_for);
|
|
|
4927 DEFSUBR (Fsleep_for);
|
|
|
4928 DEFSUBR (Faccept_process_output);
|
|
|
4929 DEFSUBR (Fadd_timeout);
|
|
|
4930 DEFSUBR (Fdisable_timeout);
|
|
|
4931 DEFSUBR (Fadd_async_timeout);
|
|
|
4932 DEFSUBR (Fdisable_async_timeout);
|
|
|
4933 DEFSUBR (Fdispatch_event);
|
|
|
4934 DEFSUBR (Fread_key_sequence);
|
|
|
4935 DEFSUBR (Fthis_command_keys);
|
|
|
4936 DEFSUBR (Freset_this_command_lengths);
|
|
|
4937 DEFSUBR (Fopen_dribble_file);
|
|
|
4938 #if defined(HAVE_X_WINDOWS) && defined(LWLIB_MENUBARS_LUCID)
|
|
|
4939 DEFSUBR (Faccelerate_menu);
|
|
|
4940 #endif
|
|
|
4941
|
|
|
4942 defsymbol (&Qpre_command_hook, "pre-command-hook");
|
|
|
4943 defsymbol (&Qpost_command_hook, "post-command-hook");
|
|
|
4944 defsymbol (&Qunread_command_events, "unread-command-events");
|
|
|
4945 defsymbol (&Qunread_command_event, "unread-command-event");
|
|
|
4946 defsymbol (&Qpre_idle_hook, "pre-idle-hook");
|
|
|
4947 #ifdef ILL_CONCEIVED_HOOK
|
|
|
4948 defsymbol (&Qpost_command_idle_hook, "post-command-idle-hook");
|
|
|
4949 #endif
|
|
|
4950 #ifdef DEFERRED_ACTION_CRAP
|
|
|
4951 defsymbol (&Qdeferred_action_function, "deferred-action-function");
|
|
|
4952 #endif
|
|
|
4953 defsymbol (&Qretry_undefined_key_binding_unshifted,
|
|
|
4954 "retry-undefined-key-binding-unshifted");
|
|
|
4955 defsymbol (&Qauto_show_make_point_visible,
|
|
|
4956 "auto-show-make-point-visible");
|
|
|
4957
|
|
|
4958 defsymbol (&Qmenu_force, "menu-force");
|
|
|
4959 defsymbol (&Qmenu_fallback, "menu-fallback");
|
|
|
4960
|
|
|
4961 defsymbol (&Qmenu_quit, "menu-quit");
|
|
|
4962 defsymbol (&Qmenu_up, "menu-up");
|
|
|
4963 defsymbol (&Qmenu_down, "menu-down");
|
|
|
4964 defsymbol (&Qmenu_left, "menu-left");
|
|
|
4965 defsymbol (&Qmenu_right, "menu-right");
|
|
|
4966 defsymbol (&Qmenu_select, "menu-select");
|
|
|
4967 defsymbol (&Qmenu_escape, "menu-escape");
|
|
|
4968
|
|
430
|
4969 defsymbol (&Qself_insert_defer_undo, "self-insert-defer-undo");
|
|
428
|
4970 defsymbol (&Qcancel_mode_internal, "cancel-mode-internal");
|
|
|
4971 }
|
|
|
4972
|
|
|
4973 void
|
|
|
4974 reinit_vars_of_event_stream (void)
|
|
|
4975 {
|
|
|
4976 recent_keys_ring_index = 0;
|
|
|
4977 recent_keys_ring_size = 100;
|
|
|
4978 num_input_chars = 0;
|
|
|
4979 Vtimeout_free_list = make_lcrecord_list (sizeof (struct Lisp_Timeout),
|
|
|
4980 &lrecord_timeout);
|
|
|
4981 staticpro_nodump (&Vtimeout_free_list);
|
|
|
4982 the_low_level_timeout_blocktype =
|
|
|
4983 Blocktype_new (struct low_level_timeout_blocktype);
|
|
|
4984 something_happened = 0;
|
|
|
4985 recursive_sit_for = Qnil;
|
|
|
4986 }
|
|
|
4987
|
|
|
4988 void
|
|
|
4989 vars_of_event_stream (void)
|
|
|
4990 {
|
|
|
4991 reinit_vars_of_event_stream ();
|
|
|
4992 Vrecent_keys_ring = Qnil;
|
|
|
4993 staticpro (&Vrecent_keys_ring);
|
|
|
4994
|
|
|
4995 Vthis_command_keys = Qnil;
|
|
|
4996 staticpro (&Vthis_command_keys);
|
|
|
4997 Vthis_command_keys_tail = Qnil;
|
|
|
4998 pdump_wire (&Vthis_command_keys_tail);
|
|
|
4999
|
|
|
5000 command_event_queue = Qnil;
|
|
|
5001 staticpro (&command_event_queue);
|
|
|
5002 command_event_queue_tail = Qnil;
|
|
|
5003 pdump_wire (&command_event_queue_tail);
|
|
|
5004
|
|
|
5005 Vlast_selected_frame = Qnil;
|
|
|
5006 staticpro (&Vlast_selected_frame);
|
|
|
5007
|
|
|
5008 pending_timeout_list = Qnil;
|
|
|
5009 staticpro (&pending_timeout_list);
|
|
|
5010
|
|
|
5011 pending_async_timeout_list = Qnil;
|
|
|
5012 staticpro (&pending_async_timeout_list);
|
|
|
5013
|
|
|
5014 last_point_position_buffer = Qnil;
|
|
|
5015 staticpro (&last_point_position_buffer);
|
|
|
5016
|
|
|
5017 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes /*
|
|
|
5018 *Nonzero means echo unfinished commands after this many seconds of pause.
|
|
|
5019 */ );
|
|
|
5020 Vecho_keystrokes = make_int (1);
|
|
|
5021
|
|
|
5022 DEFVAR_INT ("auto-save-interval", &auto_save_interval /*
|
|
|
5023 *Number of keyboard input characters between auto-saves.
|
|
|
5024 Zero means disable autosaving due to number of characters typed.
|
|
|
5025 See also the variable `auto-save-timeout'.
|
|
|
5026 */ );
|
|
|
5027 auto_save_interval = 300;
|
|
|
5028
|
|
|
5029 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook /*
|
|
|
5030 Function or functions to run before every command.
|
|
|
5031 This may examine the `this-command' variable to find out what command
|
|
|
5032 is about to be run, or may change it to cause a different command to run.
|
|
|
5033 Function on this hook must be careful to avoid signalling errors!
|
|
|
5034 */ );
|
|
|
5035 Vpre_command_hook = Qnil;
|
|
|
5036
|
|
|
5037 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook /*
|
|
|
5038 Function or functions to run after every command.
|
|
|
5039 This may examine the `this-command' variable to find out what command
|
|
|
5040 was just executed.
|
|
|
5041 */ );
|
|
|
5042 Vpost_command_hook = Qnil;
|
|
|
5043
|
|
|
5044 DEFVAR_LISP ("pre-idle-hook", &Vpre_idle_hook /*
|
|
|
5045 Normal hook run when XEmacs it about to be idle.
|
|
|
5046 This occurs whenever it is going to block, waiting for an event.
|
|
|
5047 This generally happens as a result of a call to `next-event',
|
|
|
5048 `next-command-event', `sit-for', `sleep-for', `accept-process-output',
|
|
|
5049 `x-get-selection', or various Energize-specific commands.
|
|
|
5050 Errors running the hook are caught and ignored.
|
|
|
5051 */ );
|
|
|
5052 Vpre_idle_hook = Qnil;
|
|
|
5053
|
|
|
5054 DEFVAR_BOOL ("focus-follows-mouse", &focus_follows_mouse /*
|
|
|
5055 *Variable to control XEmacs behavior with respect to focus changing.
|
|
|
5056 If this variable is set to t, then XEmacs will not gratuitously change
|
|
|
5057 the keyboard focus. XEmacs cannot in general detect when this mode is
|
|
|
5058 used by the window manager, so it is up to the user to set it.
|
|
|
5059 */ );
|
|
|
5060 focus_follows_mouse = 0;
|
|
|
5061
|
|
|
5062 #ifdef ILL_CONCEIVED_HOOK
|
|
|
5063 /* Ill-conceived because it's not run in all sorts of cases
|
|
|
5064 where XEmacs is blocking. That's what `pre-idle-hook'
|
|
|
5065 is designed to solve. */
|
|
|
5066 xxDEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook /*
|
|
|
5067 Normal hook run after each command is executed, if idle.
|
|
|
5068 `post-command-idle-delay' specifies a time in microseconds that XEmacs
|
|
|
5069 must be idle for in order for the functions on this hook to be called.
|
|
|
5070 Errors running the hook are caught and ignored.
|
|
|
5071 */ );
|
|
|
5072 Vpost_command_idle_hook = Qnil;
|
|
|
5073
|
|
|
5074 xxDEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay /*
|
|
|
5075 Delay time before running `post-command-idle-hook'.
|
|
|
5076 This is measured in microseconds.
|
|
|
5077 */ );
|
|
|
5078 post_command_idle_delay = 5000;
|
|
|
5079 #endif /* ILL_CONCEIVED_HOOK */
|
|
|
5080
|
|
|
5081 #ifdef DEFERRED_ACTION_CRAP
|
|
|
5082 /* Random FSFmacs crap. There is absolutely nothing to gain,
|
|
|
5083 and a great deal to lose, in using this in place of just
|
|
|
5084 setting `post-command-hook'. */
|
|
|
5085 xxDEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list /*
|
|
|
5086 List of deferred actions to be performed at a later time.
|
|
|
5087 The precise format isn't relevant here; we just check whether it is nil.
|
|
|
5088 */ );
|
|
|
5089 Vdeferred_action_list = Qnil;
|
|
|
5090
|
|
|
5091 xxDEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function /*
|
|
|
5092 Function to call to handle deferred actions, after each command.
|
|
|
5093 This function is called with no arguments after each command
|
|
|
5094 whenever `deferred-action-list' is non-nil.
|
|
|
5095 */ );
|
|
|
5096 Vdeferred_action_function = Qnil;
|
|
|
5097 #endif /* DEFERRED_ACTION_CRAP */
|
|
|
5098
|
|
|
5099 DEFVAR_LISP ("last-command-event", &Vlast_command_event /*
|
|
|
5100 Last keyboard or mouse button event that was part of a command. This
|
|
|
5101 variable is off limits: you may not set its value or modify the event that
|
|
|
5102 is its value, as it is destructively modified by `read-key-sequence'. If
|
|
|
5103 you want to keep a pointer to this value, you must use `copy-event'.
|
|
|
5104 */ );
|
|
|
5105 Vlast_command_event = Qnil;
|
|
|
5106
|
|
|
5107 DEFVAR_LISP ("last-command-char", &Vlast_command_char /*
|
|
|
5108 If the value of `last-command-event' is a keyboard event, then
|
|
|
5109 this is the nearest ASCII equivalent to it. This is the value that
|
|
|
5110 `self-insert-command' will put in the buffer. Remember that there is
|
|
|
5111 NOT a 1:1 mapping between keyboard events and ASCII characters: the set
|
|
|
5112 of keyboard events is much larger, so writing code that examines this
|
|
|
5113 variable to determine what key has been typed is bad practice, unless
|
|
|
5114 you are certain that it will be one of a small set of characters.
|
|
|
5115 */ );
|
|
|
5116 Vlast_command_char = Qnil;
|
|
|
5117
|
|
|
5118 DEFVAR_LISP ("last-input-event", &Vlast_input_event /*
|
|
|
5119 Last keyboard or mouse button event received. This variable is off
|
|
|
5120 limits: you may not set its value or modify the event that is its value, as
|
|
|
5121 it is destructively modified by `next-event'. If you want to keep a pointer
|
|
|
5122 to this value, you must use `copy-event'.
|
|
|
5123 */ );
|
|
|
5124 Vlast_input_event = Qnil;
|
|
|
5125
|
|
|
5126 DEFVAR_LISP ("current-mouse-event", &Vcurrent_mouse_event /*
|
|
|
5127 The mouse-button event which invoked this command, or nil.
|
|
|
5128 This is usually what `(interactive "e")' returns.
|
|
|
5129 */ );
|
|
|
5130 Vcurrent_mouse_event = Qnil;
|
|
|
5131
|
|
|
5132 DEFVAR_LISP ("last-input-char", &Vlast_input_char /*
|
|
|
5133 If the value of `last-input-event' is a keyboard event, then
|
|
|
5134 this is the nearest ASCII equivalent to it. Remember that there is
|
|
|
5135 NOT a 1:1 mapping between keyboard events and ASCII characters: the set
|
|
|
5136 of keyboard events is much larger, so writing code that examines this
|
|
|
5137 variable to determine what key has been typed is bad practice, unless
|
|
|
5138 you are certain that it will be one of a small set of characters.
|
|
|
5139 */ );
|
|
|
5140 Vlast_input_char = Qnil;
|
|
|
5141
|
|
|
5142 DEFVAR_LISP ("last-input-time", &Vlast_input_time /*
|
|
|
5143 The time (in seconds since Jan 1, 1970) of the last-command-event,
|
|
|
5144 represented as a cons of two 16-bit integers. This is destructively
|
|
|
5145 modified, so copy it if you want to keep it.
|
|
|
5146 */ );
|
|
|
5147 Vlast_input_time = Qnil;
|
|
|
5148
|
|
|
5149 DEFVAR_LISP ("last-command-event-time", &Vlast_command_event_time /*
|
|
|
5150 The time (in seconds since Jan 1, 1970) of the last-command-event,
|
|
|
5151 represented as a list of three integers. The first integer contains
|
|
|
5152 the most significant 16 bits of the number of seconds, and the second
|
|
|
5153 integer contains the least significant 16 bits. The third integer
|
|
|
5154 contains the remainder number of microseconds, if the current system
|
|
|
5155 supports microsecond clock resolution. This list is destructively
|
|
|
5156 modified, so copy it if you want to keep it.
|
|
|
5157 */ );
|
|
|
5158 Vlast_command_event_time = Qnil;
|
|
|
5159
|
|
|
5160 DEFVAR_LISP ("unread-command-events", &Vunread_command_events /*
|
|
|
5161 List of event objects to be read as next command input events.
|
|
|
5162 This can be used to simulate the receipt of events from the user.
|
|
|
5163 Normally this is nil.
|
|
|
5164 Events are removed from the front of this list.
|
|
|
5165 */ );
|
|
|
5166 Vunread_command_events = Qnil;
|
|
|
5167
|
|
|
5168 DEFVAR_LISP ("unread-command-event", &Vunread_command_event /*
|
|
|
5169 Obsolete. Use `unread-command-events' instead.
|
|
|
5170 */ );
|
|
|
5171 Vunread_command_event = Qnil;
|
|
|
5172
|
|
|
5173 DEFVAR_LISP ("last-command", &Vlast_command /*
|
|
|
5174 The last command executed. Normally a symbol with a function definition,
|
|
|
5175 but can be whatever was found in the keymap, or whatever the variable
|
|
|
5176 `this-command' was set to by that command.
|
|
|
5177 */ );
|
|
|
5178 Vlast_command = Qnil;
|
|
|
5179
|
|
|
5180 DEFVAR_LISP ("this-command", &Vthis_command /*
|
|
|
5181 The command now being executed.
|
|
|
5182 The command can set this variable; whatever is put here
|
|
|
5183 will be in `last-command' during the following command.
|
|
|
5184 */ );
|
|
|
5185 Vthis_command = Qnil;
|
|
|
5186
|
|
|
5187 DEFVAR_LISP ("help-char", &Vhelp_char /*
|
|
|
5188 Character to recognize as meaning Help.
|
|
|
5189 When it is read, do `(eval help-form)', and display result if it's a string.
|
|
|
5190 If the value of `help-form' is nil, this char can be read normally.
|
|
|
5191 This can be any form recognized as a single key specifier.
|
|
|
5192 The help-char cannot be a negative number in XEmacs.
|
|
|
5193 */ );
|
|
|
5194 Vhelp_char = make_char (8); /* C-h */
|
|
|
5195
|
|
|
5196 DEFVAR_LISP ("help-form", &Vhelp_form /*
|
|
|
5197 Form to execute when character help-char is read.
|
|
|
5198 If the form returns a string, that string is displayed.
|
|
|
5199 If `help-form' is nil, the help char is not recognized.
|
|
|
5200 */ );
|
|
|
5201 Vhelp_form = Qnil;
|
|
|
5202
|
|
|
5203 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command /*
|
|
|
5204 Command to run when `help-char' character follows a prefix key.
|
|
|
5205 This command is used only when there is no actual binding
|
|
|
5206 for that character after that prefix key.
|
|
|
5207 */ );
|
|
|
5208 Vprefix_help_command = Qnil;
|
|
|
5209
|
|
|
5210 DEFVAR_CONST_LISP ("keyboard-translate-table", &Vkeyboard_translate_table /*
|
|
|
5211 Hash table used as translate table for keyboard input.
|
|
|
5212 Use `keyboard-translate' to portably add entries to this table.
|
|
|
5213 Each key-press event is looked up in this table as follows:
|
|
|
5214
|
|
|
5215 -- If an entry maps a symbol to a symbol, then a key-press event whose
|
|
|
5216 keysym is the former symbol (with any modifiers at all) gets its
|
|
|
5217 keysym changed and its modifiers left alone. This is useful for
|
|
|
5218 dealing with non-standard X keyboards, such as the grievous damage
|
|
|
5219 that Sun has inflicted upon the world.
|
|
|
5220 -- If an entry maps a character to a character, then a key-press event
|
|
|
5221 matching the former character gets converted to a key-press event
|
|
|
5222 matching the latter character. This is useful on ASCII terminals
|
|
|
5223 for (e.g.) making C-\\ look like C-s, to get around flow-control
|
|
|
5224 problems.
|
|
|
5225 -- If an entry maps a character to a symbol, then a key-press event
|
|
|
5226 matching the character gets converted to a key-press event whose
|
|
|
5227 keysym is the given symbol and which has no modifiers.
|
|
|
5228 */ );
|
|
|
5229
|
|
|
5230 DEFVAR_LISP ("retry-undefined-key-binding-unshifted",
|
|
|
5231 &Vretry_undefined_key_binding_unshifted /*
|
|
|
5232 If a key-sequence which ends with a shifted keystroke is undefined
|
|
|
5233 and this variable is non-nil then the command lookup is retried again
|
|
|
5234 with the last key unshifted. (e.g. C-X C-F would be retried as C-X C-f.)
|
|
|
5235 If lookup still fails, a normal error is signalled. In general,
|
|
|
5236 you should *bind* this, not set it.
|
|
|
5237 */ );
|
|
|
5238 Vretry_undefined_key_binding_unshifted = Qt;
|
|
|
5239
|
|
|
5240 #ifdef HAVE_XIM
|
|
|
5241 DEFVAR_LISP ("composed-character-default-binding",
|
|
|
5242 &Vcomposed_character_default_binding /*
|
|
|
5243 The default keybinding to use for key events from composed input.
|
|
|
5244 Window systems frequently have ways to allow the user to compose
|
|
|
5245 single characters in a language using multiple keystrokes.
|
|
|
5246 XEmacs sees these as single character keypress events.
|
|
|
5247 */ );
|
|
|
5248 Vcomposed_character_default_binding = Qself_insert_command;
|
|
|
5249 #endif /* HAVE_XIM */
|
|
|
5250
|
|
|
5251 Vcontrolling_terminal = Qnil;
|
|
|
5252 staticpro (&Vcontrolling_terminal);
|
|
|
5253
|
|
|
5254 Vdribble_file = Qnil;
|
|
|
5255 staticpro (&Vdribble_file);
|
|
|
5256
|
|
|
5257 #ifdef DEBUG_XEMACS
|
|
|
5258 DEFVAR_INT ("debug-emacs-events", &debug_emacs_events /*
|
|
|
5259 If non-zero, display debug information about Emacs events that XEmacs sees.
|
|
|
5260 Information is displayed on stderr.
|
|
|
5261
|
|
|
5262 Before the event, the source of the event is displayed in parentheses,
|
|
|
5263 and is one of the following:
|
|
|
5264
|
|
|
5265 \(real) A real event from the window system or
|
|
|
5266 terminal driver, as far as XEmacs can tell.
|
|
|
5267
|
|
|
5268 \(keyboard macro) An event generated from a keyboard macro.
|
|
|
5269
|
|
|
5270 \(unread-command-events) An event taken from `unread-command-events'.
|
|
|
5271
|
|
|
5272 \(unread-command-event) An event taken from `unread-command-event'.
|
|
|
5273
|
|
|
5274 \(command event queue) An event taken from an internal queue.
|
|
|
5275 Events end up on this queue when
|
|
|
5276 `enqueue-eval-event' is called or when
|
|
|
5277 user or eval events are received while
|
|
|
5278 XEmacs is blocking (e.g. in `sit-for',
|
|
|
5279 `sleep-for', or `accept-process-output',
|
|
|
5280 or while waiting for the reply to an
|
|
|
5281 X selection).
|
|
|
5282
|
|
|
5283 \(->keyboard-translate-table) The result of an event translated through
|
|
|
5284 keyboard-translate-table. Note that in
|
|
|
5285 this case, two events are printed even
|
|
|
5286 though only one is really generated.
|
|
|
5287
|
|
|
5288 \(SIGINT) A faked C-g resulting when XEmacs receives
|
|
|
5289 a SIGINT (e.g. C-c was pressed in XEmacs'
|
|
|
5290 controlling terminal or the signal was
|
|
|
5291 explicitly sent to the XEmacs process).
|
|
|
5292 */ );
|
|
|
5293 debug_emacs_events = 0;
|
|
|
5294 #endif
|
|
|
5295
|
|
|
5296 DEFVAR_BOOL ("inhibit-input-event-recording", &inhibit_input_event_recording /*
|
|
|
5297 Non-nil inhibits recording of input-events to recent-keys ring.
|
|
|
5298 */ );
|
|
|
5299 inhibit_input_event_recording = 0;
|
|
|
5300
|
|
|
5301 DEFVAR_LISP("menu-accelerator-prefix", &Vmenu_accelerator_prefix /*
|
|
|
5302 Prefix key(s) that must be typed before menu accelerators will be activated.
|
|
|
5303 Set this to a value acceptable by define-key.
|
|
|
5304 */ );
|
|
|
5305 Vmenu_accelerator_prefix = Qnil;
|
|
|
5306
|
|
|
5307 DEFVAR_LISP ("menu-accelerator-modifiers", &Vmenu_accelerator_modifiers /*
|
|
|
5308 Modifier keys which must be pressed to get to the top level menu accelerators.
|
|
|
5309 This is a list of modifier key symbols. All modifier keys must be held down
|
|
|
5310 while a valid menu accelerator key is pressed in order for the top level
|
|
|
5311 menu to become active.
|
|
|
5312
|
|
|
5313 See also menu-accelerator-enabled and menu-accelerator-prefix.
|
|
|
5314 */ );
|
|
|
5315 Vmenu_accelerator_modifiers = list1 (Qmeta);
|
|
|
5316
|
|
|
5317 DEFVAR_LISP ("menu-accelerator-enabled", &Vmenu_accelerator_enabled /*
|
|
|
5318 Whether menu accelerator keys can cause the menubar to become active.
|
|
|
5319 If 'menu-force or 'menu-fallback, then menu accelerator keys can
|
|
|
5320 be used to activate the top level menu. Once the menubar becomes active, the
|
|
|
5321 accelerator keys can be used regardless of the value of this variable.
|
|
|
5322
|
|
|
5323 menu-force is used to indicate that the menu accelerator key takes
|
|
|
5324 precedence over bindings in the current keymap(s). menu-fallback means
|
|
|
5325 that bindings in the current keymap take precedence over menu accelerator keys.
|
|
|
5326 Thus a top level menu with an accelerator of "T" would be activated on a
|
|
|
5327 keypress of Meta-t if menu-accelerator-enabled is menu-force.
|
|
|
5328 However, if menu-accelerator-enabled is menu-fallback, then
|
|
|
5329 Meta-t will not activate the menubar and will instead run the function
|
|
|
5330 transpose-words, to which it is normally bound.
|
|
|
5331
|
|
|
5332 See also menu-accelerator-modifiers and menu-accelerator-prefix.
|
|
|
5333 */ );
|
|
|
5334 Vmenu_accelerator_enabled = Qnil;
|
|
|
5335 }
|
|
|
5336
|
|
|
5337 void
|
|
|
5338 complex_vars_of_event_stream (void)
|
|
|
5339 {
|
|
|
5340 Vkeyboard_translate_table =
|
|
|
5341 make_lisp_hash_table (100, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ);
|
|
|
5342
|
|
|
5343 DEFVAR_LISP ("menu-accelerator-map", &Vmenu_accelerator_map /*
|
|
|
5344 Keymap for use when the menubar is active.
|
|
|
5345 The actions menu-quit, menu-up, menu-down, menu-left, menu-right,
|
|
|
5346 menu-select and menu-escape can be mapped to keys in this map.
|
|
|
5347
|
|
|
5348 menu-quit Immediately deactivate the menubar and any open submenus without
|
|
|
5349 selecting an item.
|
|
|
5350 menu-up Move the menu cursor up one row in the current menu. If the
|
|
|
5351 move extends past the top of the menu, wrap around to the bottom.
|
|
|
5352 menu-down Move the menu cursor down one row in the current menu. If the
|
|
|
5353 move extends past the bottom of the menu, wrap around to the top.
|
|
|
5354 If executed while the cursor is in the top level menu, move down
|
|
|
5355 into the selected menu.
|
|
|
5356 menu-left Move the cursor from a submenu into the parent menu. If executed
|
|
|
5357 while the cursor is in the top level menu, move the cursor to the
|
|
|
5358 left. If the move extends past the left edge of the menu, wrap
|
|
|
5359 around to the right edge.
|
|
|
5360 menu-right Move the cursor into a submenu. If the cursor is located in the
|
|
|
5361 top level menu or is not currently on a submenu heading, then move
|
|
|
5362 the cursor to the next top level menu entry. If the move extends
|
|
|
5363 past the right edge of the menu, wrap around to the left edge.
|
|
|
5364 menu-select Activate the item under the cursor. If the cursor is located on
|
|
|
5365 a submenu heading, then move the cursor into the submenu.
|
|
|
5366 menu-escape Pop up to the next level of menus. Moves from a submenu into its
|
|
|
5367 parent menu. From the top level menu, this deactivates the
|
|
|
5368 menubar.
|
|
|
5369
|
|
|
5370 This keymap can also contain normal key-command bindings, in which case the
|
|
|
5371 menubar is deactivated and the corresponding command is executed.
|
|
|
5372
|
|
|
5373 The action bindings used by the menu accelerator code are designed to mimic
|
|
|
5374 the actions of menu traversal keys in a commonly used PC operating system.
|
|
|
5375 */ );
|
|
|
5376 Vmenu_accelerator_map = Fmake_keymap(Qnil);
|
|
|
5377 }
|
|
|
5378
|
|
|
5379 void
|
|
|
5380 init_event_stream (void)
|
|
|
5381 {
|
|
|
5382 if (initialized)
|
|
|
5383 {
|
|
|
5384 #ifdef HAVE_UNIXOID_EVENT_LOOP
|
|
|
5385 init_event_unixoid ();
|
|
|
5386 #endif
|
|
|
5387 #ifdef HAVE_X_WINDOWS
|
|
|
5388 if (!strcmp (display_use, "x"))
|
|
|
5389 init_event_Xt_late ();
|
|
|
5390 else
|
|
|
5391 #endif
|
|
|
5392 #ifdef HAVE_MS_WINDOWS
|
|
|
5393 if (!strcmp (display_use, "mswindows"))
|
|
|
5394 init_event_mswindows_late ();
|
|
|
5395 else
|
|
|
5396 #endif
|
|
|
5397 {
|
|
|
5398 /* For TTY's, use the Xt event loop if we can; it allows
|
|
|
5399 us to later open an X connection. */
|
|
|
5400 #if defined (HAVE_MS_WINDOWS) && (!defined (HAVE_TTY) \
|
|
|
5401 || (defined (HAVE_MSG_SELECT) \
|
|
|
5402 && !defined (DEBUG_TTY_EVENT_STREAM)))
|
|
|
5403 init_event_mswindows_late ();
|
|
|
5404 #elif defined (HAVE_X_WINDOWS) && !defined (DEBUG_TTY_EVENT_STREAM)
|
|
|
5405 init_event_Xt_late ();
|
|
|
5406 #elif defined (HAVE_TTY)
|
|
|
5407 init_event_tty_late ();
|
|
|
5408 #endif
|
|
|
5409 }
|
|
|
5410 init_interrupts_late ();
|
|
|
5411 }
|
|
|
5412 }
|
|
|
5413
|
|
|
5414
|
|
|
5415 /*
|
|
|
5416 useful testcases for v18/v19 compatibility:
|
|
|
5417
|
|
|
5418 (defun foo ()
|
|
|
5419 (interactive)
|
|
|
5420 (setq unread-command-event (character-to-event ?A (allocate-event)))
|
|
|
5421 (setq x (list (read-char)
|
|
|
5422 ; (read-key-sequence "") ; try it with and without this
|
|
|
5423 last-command-char last-input-char
|
|
|
5424 (recent-keys) (this-command-keys))))
|
|
|
5425 (global-set-key "\^Q" 'foo)
|
|
|
5426
|
|
|
5427 without the read-key-sequence:
|
|
|
5428 ^Q ==> (65 17 65 [... ^Q] [^Q])
|
|
|
5429 ^U^U^Q ==> (65 17 65 [... ^U ^U ^Q] [^U ^U ^Q])
|
|
|
5430 ^U^U^U^G^Q ==> (65 17 65 [... ^U ^U ^U ^G ^Q] [^Q])
|
|
|
5431
|
|
|
5432 with the read-key-sequence:
|
|
|
5433 ^Qb ==> (65 [b] 17 98 [... ^Q b] [b])
|
|
|
5434 ^U^U^Qb ==> (65 [b] 17 98 [... ^U ^U ^Q b] [b])
|
|
|
5435 ^U^U^U^G^Qb ==> (65 [b] 17 98 [... ^U ^U ^U ^G ^Q b] [b])
|
|
|
5436
|
|
|
5437 ;the evi-mode command "4dlj.j.j.j.j.j." is also a good testcase (gag)
|
|
|
5438
|
|
|
5439 ;(setq x (list (read-char) quit-flag))^J^G
|
|
|
5440 ;(let ((inhibit-quit t)) (setq x (list (read-char) quit-flag)))^J^G
|
|
|
5441 ;for BOTH, x should get set to (7 t), but no result should be printed.
|
|
|
5442
|
|
|
5443 ;also do this: make two frames, one viewing "*scratch*", the other "foo".
|
|
|
5444 ;in *scratch*, type (sit-for 20)^J
|
|
|
5445 ;wait a couple of seconds, move cursor to foo, type "a"
|
|
|
5446 ;a should be inserted in foo. Cursor highlighting should not change in
|
|
|
5447 ;the meantime.
|
|
|
5448
|
|
|
5449 ;do it with sleep-for. move cursor into foo, then back into *scratch*
|
|
|
5450 ;before typing.
|
|
|
5451 ;repeat also with (accept-process-output nil 20)
|
|
|
5452
|
|
|
5453 ;make sure ^G aborts sit-for, sleep-for and accept-process-output:
|
|
|
5454
|
|
|
5455 (defun tst ()
|
|
|
5456 (list (condition-case c
|
|
|
5457 (sleep-for 20)
|
|
|
5458 (quit c))
|
|
|
5459 (read-char)))
|
|
|
5460
|
|
|
5461 (tst)^Ja^G ==> ((quit) 97) with no signal
|
|
|
5462 (tst)^J^Ga ==> ((quit) 97) with no signal
|
|
|
5463 (tst)^Jabc^G ==> ((quit) 97) with no signal, and "bc" inserted in buffer
|
|
|
5464
|
|
|
5465 ; with sit-for only do the 2nd test.
|
|
|
5466 ; Do all 3 tests with (accept-process-output nil 20)
|
|
|
5467
|
|
|
5468 Do this:
|
|
|
5469 (setq enable-recursive-minibuffers t
|
|
|
5470 minibuffer-max-depth nil)
|
|
|
5471 ESC ESC ESC ESC - there are now two minibuffers active
|
|
|
5472 C-g C-g C-g - there should be active 0, not 1
|
|
|
5473 Similarly:
|
|
|
5474 C-x C-f ~ / ? - wait for "Making completion list..." to display
|
|
|
5475 C-g - wait for "Quit" to display
|
|
|
5476 C-g - minibuffer should not be active
|
|
|
5477 however C-g before "Quit" is displayed should leave minibuffer active.
|
|
|
5478
|
|
|
5479 ;do it all in both v18 and v19 and make sure all results are the same.
|
|
|
5480 ;all of these cases matter a lot, but some in quite subtle ways.
|
|
|
5481 */
|
|
|
5482
|
|
|
5483 /*
|
|
|
5484 Additional test cases for accept-process-output, sleep-for, sit-for.
|
|
|
5485 Be sure you do all of the above checking for C-g and focus, too!
|
|
|
5486
|
|
|
5487 ; Make sure that timer handlers are run during, not after sit-for:
|
|
|
5488 (defun timer-check ()
|
|
|
5489 (add-timeout 2 '(lambda (ignore) (message "timer ran")) nil)
|
|
|
5490 (sit-for 5)
|
|
|
5491 (message "after sit-for"))
|
|
|
5492
|
|
|
5493 ; The first message should appear after 2 seconds, and the final message
|
|
|
5494 ; 3 seconds after that.
|
|
|
5495 ; repeat above test with (sleep-for 5) and (accept-process-output nil 5)
|
|
|
5496
|
|
|
5497
|
|
|
5498
|
|
|
5499 ; Make sure that process filters are run during, not after sit-for.
|
|
|
5500 (defun fubar ()
|
|
|
5501 (message "sit-for = %s" (sit-for 30)))
|
|
|
5502 (add-hook 'post-command-hook 'fubar)
|
|
|
5503
|
|
|
5504 ; Now type M-x shell RET
|
|
|
5505 ; wait for the shell prompt then send: ls RET
|
|
|
5506 ; the output of ls should fill immediately, and not wait 30 seconds.
|
|
|
5507
|
|
|
5508 ; repeat above test with (sleep-for 30) and (accept-process-output nil 30)
|
|
|
5509
|
|
|
5510
|
|
|
5511
|
|
|
5512 ; Make sure that recursive invocations return immediately:
|
|
|
5513 (defmacro test-diff-time (start end)
|
|
|
5514 `(+ (* (- (car ,end) (car ,start)) 65536.0)
|
|
|
5515 (- (cadr ,end) (cadr ,start))
|
|
|
5516 (/ (- (caddr ,end) (caddr ,start)) 1000000.0)))
|
|
|
5517
|
|
|
5518 (defun testee (ignore)
|
|
|
5519 (sit-for 10))
|
|
|
5520
|
|
|
5521 (defun test-them ()
|
|
|
5522 (let ((start (current-time))
|
|
|
5523 end)
|
|
|
5524 (add-timeout 2 'testee nil)
|
|
|
5525 (sit-for 5)
|
|
|
5526 (add-timeout 2 'testee nil)
|
|
|
5527 (sleep-for 5)
|
|
|
5528 (add-timeout 2 'testee nil)
|
|
|
5529 (accept-process-output nil 5)
|
|
|
5530 (setq end (current-time))
|
|
|
5531 (test-diff-time start end)))
|
|
|
5532
|
|
|
5533 (test-them) should sit for 15 seconds.
|
|
|
5534 Repeat with testee set to sleep-for and accept-process-output.
|
|
|
5535 These should each delay 36 seconds.
|
|
|
5536
|
|
|
5537 */
|
