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440
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1 /* GPM (General purpose mouse) functions
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428
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2 Copyright (C) 1997 William M. Perry <wmperry@gnu.org>
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3 Copyright (C) 1999 Free Software Foundation, Inc.
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793
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4 Copyright (C) 2002 Ben Wing.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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428
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* Authors: William Perry */
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26
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27 #include <config.h>
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28 #include "lisp.h"
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793
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29
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30 #include "commands.h"
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31 #include "console-tty.h"
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428
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32 #include "console.h"
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33 #include "device.h"
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34 #include "events.h"
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793
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35 #include "lstream.h"
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36 #include "process.h"
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428
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37 #include "sysdep.h"
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876
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38 #include "frame.h"
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39 #include "device-impl.h"
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40 #include "console-impl.h"
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41 #include "console-tty-impl.h"
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793
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42
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428
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43 #include "sysproc.h" /* for MAXDESC */
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44
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45 #ifdef HAVE_GPM
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46 #include "gpmevent.h"
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47 #include <gpm.h>
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48
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49 #define KG_SHIFT 0
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50 #define KG_CTRL 2
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51 #define KG_ALT 3
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52
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53 extern int gpm_tried;
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54 extern void *gpm_stack;
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55
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56 static int (*orig_event_pending_p) (int);
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440
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57 static void (*orig_next_event_cb) (Lisp_Event *);
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428
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58
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59 static Lisp_Object gpm_event_queue;
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60 static Lisp_Object gpm_event_queue_tail;
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61
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793
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62 struct __gpm_state
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63 {
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64 int gpm_tried;
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65 int gpm_flag;
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66 void *gpm_stack;
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428
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67 };
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68
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69 static struct __gpm_state gpm_state_information[MAXDESC];
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70
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71 static void
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72 store_gpm_state (int fd)
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73 {
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793
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74 gpm_state_information[fd].gpm_tried = gpm_tried;
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75 gpm_state_information[fd].gpm_flag = gpm_flag;
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76 gpm_state_information[fd].gpm_stack = gpm_stack;
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428
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77 }
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78
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79 static void
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80 restore_gpm_state (int fd)
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81 {
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793
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82 gpm_tried = gpm_state_information[fd].gpm_tried;
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83 gpm_flag = gpm_state_information[fd].gpm_flag;
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84 gpm_stack = gpm_state_information[fd].gpm_stack;
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85 gpm_consolefd = gpm_fd = fd;
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428
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86 }
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87
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88 static void
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89 clear_gpm_state (int fd)
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90 {
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793
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91 if (fd >= 0)
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92 memset (&gpm_state_information[fd], '\0', sizeof (struct __gpm_state));
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93 gpm_tried = gpm_flag = 1;
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94 gpm_fd = gpm_consolefd = -1;
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95 gpm_stack = NULL;
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428
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96 }
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97
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98 static int
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440
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99 get_process_infd (Lisp_Process *p)
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428
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100 {
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853
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101 Lisp_Object instr, outstr, errstr;
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102 get_process_streams (p, &instr, &outstr, &errstr);
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428
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103 assert (!NILP (instr));
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104 return filedesc_stream_fd (XLSTREAM (instr));
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105 }
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106
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107 DEFUN ("receive-gpm-event", Freceive_gpm_event, 0, 2, 0, /*
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108 Run GPM_GetEvent().
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109 This function is the process handler for the GPM connection.
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110 */
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2286
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111 (process, UNUSED (string)))
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428
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112 {
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793
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113 Gpm_Event ev;
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114 int modifiers = 0;
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115 int button = 1;
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116 Lisp_Object fake_event = Qnil;
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117 Lisp_Event *event = NULL;
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118 struct gcpro gcpro1;
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119 static int num_events;
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428
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120
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793
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121 CHECK_PROCESS (process);
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428
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122
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793
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123 restore_gpm_state (get_process_infd (XPROCESS (process)));
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428
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124
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793
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125 if (!Gpm_GetEvent (&ev))
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126 {
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127 warn_when_safe (Qnil, Qerror,
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128 "Gpm_GetEvent failed - %d", gpm_fd);
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129 return (Qzero);
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130 }
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428
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131
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793
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132 GCPRO1 (fake_event);
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428
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133
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793
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134 num_events++;
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135
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136 fake_event = Fmake_event (Qnil, Qnil);
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137 event = XEVENT (fake_event);
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428
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138
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793
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139 event->timestamp = 0;
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140 event->channel = Fselected_frame (Qnil); /* CONSOLE_SELECTED_FRAME (con); */
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428
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141
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793
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142 /* Whow, wouldn't named defines be NICE!?!?! */
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143 modifiers = 0;
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428
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144
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793
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145 if (ev.modifiers & 1) modifiers |= XEMACS_MOD_SHIFT;
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146 if (ev.modifiers & 2) modifiers |= XEMACS_MOD_META;
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147 if (ev.modifiers & 4) modifiers |= XEMACS_MOD_CONTROL;
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148 if (ev.modifiers & 8) modifiers |= XEMACS_MOD_META;
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149
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150 if (ev.buttons & GPM_B_LEFT)
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151 button = 1;
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152 else if (ev.buttons & GPM_B_MIDDLE)
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153 button = 2;
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154 else if (ev.buttons & GPM_B_RIGHT)
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155 button = 3;
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428
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156
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793
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157 switch (GPM_BARE_EVENTS (ev.type))
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158 {
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159 case GPM_DOWN:
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160 case GPM_UP:
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934
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161 SET_EVENT_TYPE (event,
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162 (ev.type & GPM_DOWN) ? button_press_event : button_release_event);
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1204
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163 SET_EVENT_BUTTON_X (event, ev.x);
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164 SET_EVENT_BUTTON_Y (event, ev.y);
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165 SET_EVENT_BUTTON_BUTTON (event, button);
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166 SET_EVENT_BUTTON_MODIFIERS (event, modifiers);
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793
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167 break;
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168 case GPM_MOVE:
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169 case GPM_DRAG:
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934
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170 SET_EVENT_TYPE (event, pointer_motion_event);
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1204
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171 SET_EVENT_MOTION_X (event, ev.x);
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172 SET_EVENT_MOTION_Y (event, ev.y);
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173 SET_EVENT_MOTION_MODIFIERS (event, modifiers);
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793
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174 default:
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175 /* This will never happen */
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176 break;
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177 }
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428
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178
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793
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179 /* Handle the event */
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180 enqueue_event (fake_event, &gpm_event_queue, &gpm_event_queue_tail);
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428
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181
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793
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182 UNGCPRO;
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428
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183
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793
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184 return (Qzero);
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428
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185 }
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186
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187 static void turn_off_gpm (char *process_name)
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188 {
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793
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189 Lisp_Object process = Fget_process (build_string (process_name));
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190 int fd = -1;
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428
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191
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793
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192 if (NILP (process))
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193 /* Something happened to our GPM process - fail silently */
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194 return;
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428
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195
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793
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196 fd = get_process_infd (XPROCESS (process));
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428
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197
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793
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198 restore_gpm_state (fd);
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428
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199
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793
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200 Gpm_Close();
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428
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201
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793
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202 clear_gpm_state (fd);
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428
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203
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793
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204 Fdelete_process (build_string (process_name));
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428
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205 }
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206
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207 #ifdef TIOCLINUX
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208 static Lisp_Object
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2286
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209 tty_get_foreign_selection (Lisp_Object UNUSED (selection_symbol),
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210 Lisp_Object UNUSED (target_type))
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428
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211 {
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|
793
|
212 /* This function can GC */
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|
213 struct device *d = decode_device (Qnil);
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|
214 int fd = DEVICE_INFD (d);
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|
215 char c = 3;
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|
216 Lisp_Object output_stream = Qnil;
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|
217 Lisp_Object terminal_stream = Qnil;
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|
218 Lisp_Object output_string = Qnil;
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|
219 struct gcpro gcpro1,gcpro2,gcpro3;
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220
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221 GCPRO3(output_stream,terminal_stream,output_string);
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428
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222
|
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793
|
223 /* The ioctl() to paste actually puts things in the input queue of
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224 ** the virtual console, so we need to trap that data, since we are
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|
225 ** supposed to return the actual string selection from this
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226 ** function.
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227 */
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428
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228
|
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793
|
229 /* I really hate doing this, but it doesn't seem to cause any
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230 ** problems, and it makes the Lstream_read stuff further down
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|
231 ** error out correctly instead of trying to indefinitely read from
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232 ** the console.
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233 **
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|
234 ** There is no set_descriptor_blocking() function call, but in my
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|
235 ** testing under linux, it has not proved fatal to leave the
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236 ** descriptor in non-blocking mode.
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|
237 **
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|
238 ** William Perry Nov 5, 1999
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239 */
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240 set_descriptor_non_blocking (fd);
|
|
428
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241
|
|
793
|
242 /* We need two streams, one for reading from the selected device,
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|
243 ** and one to write the data into. There is no writable version
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|
244 ** of the lisp-string lstream, so we make do with a resizing
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245 ** buffer stream, and make a string out of it after we are
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246 ** done.
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|
247 */
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|
|
248 output_stream = make_resizing_buffer_output_stream ();
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|
|
249 terminal_stream = make_filedesc_input_stream (fd, 0, -1, LSTR_BLOCKED_OK);
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|
|
250 output_string = Qnil;
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|
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251
|
|
|
252 /* #### We should arguably use a specbind() and an unwind routine here,
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|
253 ** #### but I don't care that much right now.
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|
|
254 */
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|
|
255 if (NILP (output_stream) || NILP (terminal_stream))
|
|
|
256 /* Should we signal an error here? */
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|
|
257 goto out;
|
|
428
|
258
|
|
793
|
259 if (ioctl (fd, TIOCLINUX, &c) < 0)
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|
|
260 {
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|
|
261 /* Could not get the selection - eek */
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|
|
262 UNGCPRO;
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|
|
263 return (Qnil);
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|
|
264 }
|
|
428
|
265
|
|
793
|
266 while (1)
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|
|
267 {
|
|
867
|
268 Ibyte tempbuf[1024]; /* some random amount */
|
|
793
|
269 Bytecount i;
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|
|
270 Bytecount size_in_bytes =
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|
|
271 Lstream_read (XLSTREAM (terminal_stream),
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|
|
272 tempbuf, sizeof (tempbuf));
|
|
|
273
|
|
|
274 if (size_in_bytes <= 0)
|
|
|
275 /* end of the stream */
|
|
|
276 break;
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|
|
277
|
|
|
278 /* convert CR->LF */
|
|
|
279 for (i = 0; i < size_in_bytes; i++)
|
|
428
|
280 {
|
|
793
|
281 if (tempbuf[i] == '\r')
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|
|
282 tempbuf[i] = '\n';
|
|
428
|
283 }
|
|
|
284
|
|
793
|
285 Lstream_write (XLSTREAM (output_stream), tempbuf, size_in_bytes);
|
|
|
286 }
|
|
428
|
287
|
|
793
|
288 Lstream_flush (XLSTREAM (output_stream));
|
|
428
|
289
|
|
793
|
290 output_string =
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|
|
291 make_string (resizing_buffer_stream_ptr (XLSTREAM (output_stream)),
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|
|
292 Lstream_byte_count (XLSTREAM (output_stream)));
|
|
428
|
293
|
|
793
|
294 Lstream_delete (XLSTREAM (output_stream));
|
|
|
295 Lstream_delete (XLSTREAM (terminal_stream));
|
|
428
|
296
|
|
|
297 out:
|
|
793
|
298 UNGCPRO;
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|
|
299 return (output_string);
|
|
428
|
300 }
|
|
|
301
|
|
|
302 static Lisp_Object
|
|
2286
|
303 tty_selection_exists_p (Lisp_Object UNUSED (selection),
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|
|
304 Lisp_Object UNUSED (selection_type))
|
|
428
|
305 {
|
|
793
|
306 return (Qt);
|
|
428
|
307 }
|
|
|
308 #endif /* TIOCLINUX */
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|
|
309
|
|
|
310 #if 0
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|
|
311 static Lisp_Object
|
|
442
|
312 tty_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
|
|
|
313 Lisp_Object how_to_add, Lisp_Object selection_type)
|
|
428
|
314 {
|
|
793
|
315 /* There is no way to do this cleanly - the GPM selection
|
|
|
316 ** 'protocol' (actually the TIOCLINUX ioctl) requires a start and
|
|
|
317 ** end position on the _screen_, not a string to stick in there.
|
|
|
318 ** Lame.
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|
|
319 **
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|
|
320 ** William Perry Nov 4, 1999
|
|
|
321 */
|
|
428
|
322 }
|
|
|
323 #endif
|
|
|
324
|
|
|
325 /* This function appears to work once in a blue moon. I'm not sure
|
|
793
|
326 ** exactly why either. *sigh*
|
|
|
327 **
|
|
|
328 ** William Perry Nov 4, 1999
|
|
|
329 **
|
|
|
330 ** Apparently, this is the way (mouse-position) is supposed to work,
|
|
|
331 ** and I was just expecting something else. (mouse-pixel-position)
|
|
|
332 ** works just fine.
|
|
|
333 **
|
|
|
334 ** William Perry Nov 7, 1999
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|
|
335 */
|
|
428
|
336 static int
|
|
|
337 tty_get_mouse_position (struct device *d, Lisp_Object *frame, int *x, int *y)
|
|
|
338 {
|
|
793
|
339 Gpm_Event ev;
|
|
|
340 int num_buttons;
|
|
428
|
341
|
|
793
|
342 memset(&ev,'\0',sizeof(ev));
|
|
428
|
343
|
|
793
|
344 num_buttons = Gpm_GetSnapshot(&ev);
|
|
428
|
345
|
|
793
|
346 if (!num_buttons)
|
|
|
347 /* This means there are events pending... */
|
|
428
|
348
|
|
793
|
349 /* #### In theory, we should drain the events pending, stick
|
|
|
350 ** #### them in the queue, and return the mouse position
|
|
|
351 ** #### anyway.
|
|
|
352 */
|
|
|
353 return (-1);
|
|
|
354 *x = ev.x;
|
|
|
355 *y = ev.y;
|
|
|
356 *frame = DEVICE_SELECTED_FRAME (d);
|
|
|
357 return (1);
|
|
428
|
358 }
|
|
|
359
|
|
|
360 static void
|
|
2286
|
361 tty_set_mouse_position (struct window *UNUSED (w), int UNUSED (x),
|
|
|
362 int UNUSED (y))
|
|
428
|
363 {
|
|
793
|
364 /*
|
|
|
365 #### I couldn't find any GPM functions that set the mouse position.
|
|
|
366 #### Mr. Perry had left this function empty; that must be why.
|
|
|
367 #### karlheg
|
|
|
368 */
|
|
428
|
369 }
|
|
|
370
|
|
|
371 static int gpm_event_pending_p (int user_p)
|
|
|
372 {
|
|
793
|
373 Lisp_Object event;
|
|
428
|
374
|
|
793
|
375 EVENT_CHAIN_LOOP (event, gpm_event_queue)
|
|
|
376 {
|
|
|
377 if (!user_p || command_event_p (event))
|
|
|
378 return (1);
|
|
|
379 }
|
|
|
380 return (orig_event_pending_p (user_p));
|
|
428
|
381 }
|
|
|
382
|
|
440
|
383 static void gpm_next_event_cb (Lisp_Event *event)
|
|
428
|
384 {
|
|
793
|
385 /* #### It would be nice to preserve some sort of ordering of the
|
|
|
386 ** #### different types of events, but that would be quite a bit
|
|
|
387 ** #### of work, and would more than likely break the abstraction
|
|
|
388 ** #### between the other event loops and this one.
|
|
|
389 */
|
|
440
|
390
|
|
793
|
391 if (!NILP (gpm_event_queue))
|
|
|
392 {
|
|
|
393 Lisp_Object queued_event =
|
|
|
394 dequeue_event (&gpm_event_queue, &gpm_event_queue_tail);
|
|
|
395 *event = *(XEVENT (queued_event));
|
|
|
396
|
|
|
397 if (event->event_type == pointer_motion_event)
|
|
428
|
398 {
|
|
793
|
399 struct device *d = decode_device (event->channel);
|
|
|
400 int fd = DEVICE_INFD (d);
|
|
428
|
401
|
|
793
|
402 /* Ok, now this is just freaky. Bear with me though.
|
|
|
403 **
|
|
|
404 ** If you run gnuclient and attach to a XEmacs running in
|
|
|
405 ** X or on another TTY, the mouse cursor does not get
|
|
|
406 ** drawn correctly. This is because the ioctl() fails
|
|
|
407 ** with EPERM because the TTY specified is not our
|
|
|
408 ** controlling terminal. If you are the superuser, it
|
|
|
409 ** will work just spiffy. The appropriate source file (at
|
|
|
410 ** least in linux 2.2.x) is
|
|
|
411 ** .../linux/drivers/char/console.c in the function
|
|
|
412 ** tioclinux(). The following bit of code is brutal to
|
|
|
413 ** us:
|
|
|
414 **
|
|
|
415 ** if (current->tty != tty && !suser())
|
|
|
416 ** return -EPERM;
|
|
|
417 **
|
|
|
418 ** I even tried setting us as a process leader, removing
|
|
|
419 ** our controlling terminal, and then using the TIOCSCTTY
|
|
|
420 ** to set up a new controlling terminal, all with no luck.
|
|
|
421 **
|
|
|
422 ** What is even weirder is if you run XEmacs in a VC, and
|
|
|
423 ** attach to it from another VC with gnuclient, go back to
|
|
|
424 ** the original VC and hit a key, the mouse pointer
|
|
|
425 ** displays (in BOTH VCs), until you hit a key in the
|
|
|
426 ** second VC, after which it does not display in EITHER
|
|
|
427 ** VC. Bizarre, no?
|
|
|
428 **
|
|
|
429 ** All I can say is thank god Linux comes with source code
|
|
|
430 ** or I would have been completely confused. Well, ok,
|
|
|
431 ** I'm still completely confused. I don't see why they
|
|
|
432 ** don't just check the permissions on the device
|
|
|
433 ** (actually, if you have enough access to it to get the
|
|
|
434 ** console's file descriptor, you should be able to do
|
|
|
435 ** with it as you wish, but maybe that is just me).
|
|
|
436 **
|
|
|
437 ** William M. Perry - Nov 9, 1999
|
|
|
438 */
|
|
428
|
439
|
|
1204
|
440 Gpm_DrawPointer (EVENT_MOTION_X (event),EVENT_MOTION_Y (event), fd);
|
|
428
|
441 }
|
|
|
442
|
|
793
|
443 return;
|
|
|
444 }
|
|
|
445
|
|
|
446 orig_next_event_cb (event);
|
|
428
|
447 }
|
|
|
448
|
|
|
449 static void hook_event_callbacks_once (void)
|
|
|
450 {
|
|
793
|
451 static int hooker;
|
|
428
|
452
|
|
793
|
453 if (!hooker)
|
|
|
454 {
|
|
|
455 orig_event_pending_p = event_stream->event_pending_p;
|
|
|
456 orig_next_event_cb = event_stream->next_event_cb;
|
|
|
457 event_stream->event_pending_p = gpm_event_pending_p;
|
|
|
458 event_stream->next_event_cb = gpm_next_event_cb;
|
|
|
459 hooker = 1;
|
|
|
460 }
|
|
428
|
461 }
|
|
|
462
|
|
|
463 static void hook_console_methods_once (void)
|
|
|
464 {
|
|
793
|
465 static int hooker;
|
|
428
|
466
|
|
793
|
467 if (!hooker)
|
|
|
468 {
|
|
|
469 /* Install the mouse position methods for the TTY console type */
|
|
|
470 CONSOLE_HAS_METHOD (tty, get_mouse_position);
|
|
|
471 CONSOLE_HAS_METHOD (tty, set_mouse_position);
|
|
|
472 CONSOLE_HAS_METHOD (tty, get_foreign_selection);
|
|
|
473 CONSOLE_HAS_METHOD (tty, selection_exists_p);
|
|
428
|
474 #if 0
|
|
793
|
475 CONSOLE_HAS_METHOD (tty, own_selection);
|
|
428
|
476 #endif
|
|
793
|
477 }
|
|
428
|
478 }
|
|
|
479
|
|
|
480 DEFUN ("gpm-enabled-p", Fgpm_enabled_p, 0, 1, 0, /*
|
|
|
481 Return non-nil if GPM mouse support is currently enabled on DEVICE.
|
|
|
482 */
|
|
793
|
483 (device))
|
|
428
|
484 {
|
|
793
|
485 char *console_name = ttyname (DEVICE_INFD (decode_device (device)));
|
|
|
486 char process_name[1024];
|
|
|
487 Lisp_Object proc;
|
|
428
|
488
|
|
793
|
489 if (!console_name)
|
|
|
490 return (Qnil);
|
|
428
|
491
|
|
793
|
492 memset (process_name, '\0', sizeof(process_name));
|
|
|
493 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s",
|
|
|
494 console_name);
|
|
428
|
495
|
|
793
|
496 proc = Fget_process (build_string (process_name));
|
|
428
|
497
|
|
793
|
498 if (NILP (proc))
|
|
|
499 return (Qnil);
|
|
428
|
500
|
|
793
|
501 if (1) /* (PROCESS_LIVE_P (proc)) */
|
|
|
502 return (Qt);
|
|
|
503 return (Qnil);
|
|
428
|
504 }
|
|
|
505
|
|
|
506 DEFUN ("gpm-enable", Fgpm_enable, 0, 2, 0, /*
|
|
|
507 Toggle accepting of GPM mouse events.
|
|
|
508 */
|
|
793
|
509 (device, arg))
|
|
428
|
510 {
|
|
793
|
511 Gpm_Connect conn;
|
|
|
512 int rval;
|
|
|
513 Lisp_Object gpm_process;
|
|
|
514 Lisp_Object gpm_filter;
|
|
|
515 struct device *d = decode_device (device);
|
|
|
516 int fd = DEVICE_INFD (d);
|
|
|
517 char *console_name = ttyname (fd);
|
|
|
518 char process_name[1024];
|
|
428
|
519
|
|
793
|
520 hook_event_callbacks_once ();
|
|
|
521 hook_console_methods_once ();
|
|
|
522
|
|
|
523 if (noninteractive)
|
|
|
524 invalid_operation ("Can't connect to GPM in batch mode", Qunbound);
|
|
428
|
525
|
|
793
|
526 if (!console_name)
|
|
|
527 /* Something seriously wrong here... */
|
|
|
528 return (Qnil);
|
|
|
529
|
|
|
530 memset (process_name, '\0', sizeof(process_name));
|
|
|
531 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s",
|
|
|
532 console_name);
|
|
428
|
533
|
|
793
|
534 if (NILP (arg))
|
|
|
535 {
|
|
|
536 turn_off_gpm (process_name);
|
|
|
537 return (Qnil);
|
|
|
538 }
|
|
428
|
539
|
|
793
|
540 /* DANGER DANGER.
|
|
|
541 ** Though shalt not call (gpm-enable t) after we have already
|
|
|
542 ** started, or stuff blows up.
|
|
|
543 */
|
|
|
544 if (!NILP (Fgpm_enabled_p (device)))
|
|
|
545 invalid_operation ("GPM already enabled for this console", Qunbound);
|
|
428
|
546
|
|
793
|
547 conn.eventMask = GPM_DOWN|GPM_UP|GPM_MOVE|GPM_DRAG;
|
|
|
548 conn.defaultMask = GPM_MOVE;
|
|
|
549 conn.minMod = 0;
|
|
|
550 conn.maxMod = ((1 << KG_SHIFT) | (1 << KG_ALT) | (1 << KG_CTRL));
|
|
428
|
551
|
|
793
|
552 /* Reset some silly static variables so that multiple Gpm_Open()
|
|
|
553 ** calls have even a slight chance of working
|
|
|
554 */
|
|
|
555 gpm_tried = 0;
|
|
|
556 gpm_flag = 0;
|
|
|
557 gpm_stack = NULL;
|
|
428
|
558
|
|
793
|
559 /* Make sure Gpm_Open() does ioctl() on the correct
|
|
|
560 ** descriptor, or it can get the wrong terminal sizes, etc.
|
|
|
561 */
|
|
|
562 gpm_consolefd = fd;
|
|
440
|
563
|
|
793
|
564 /* We have to pass the virtual console manually, otherwise if you
|
|
3025
|
565 ** use `gnuclient -nw' to connect to an XEmacs that is running in
|
|
793
|
566 ** X, Gpm_Open() tries to use ttyname(0 | 1 | 2) to find out which
|
|
|
567 ** console you are using, which is of course not correct for the
|
|
|
568 ** new tty device.
|
|
|
569 */
|
|
|
570 if (strncmp (console_name, "/dev/tty", 8) || !isdigit (console_name[8]))
|
|
|
571 /* Urk, something really wrong */
|
|
|
572 return (Qnil);
|
|
428
|
573
|
|
793
|
574 rval = Gpm_Open (&conn, atoi (console_name + 8));
|
|
428
|
575
|
|
793
|
576 switch (rval)
|
|
|
577 {
|
|
|
578 case -1: /* General failure */
|
|
|
579 break;
|
|
|
580 case -2: /* We are running under an XTerm */
|
|
|
581 Gpm_Close();
|
|
|
582 break;
|
|
|
583 default:
|
|
|
584 /* Is this really necessary? */
|
|
|
585 set_descriptor_non_blocking (gpm_fd);
|
|
|
586 store_gpm_state (gpm_fd);
|
|
|
587 gpm_process =
|
|
|
588 connect_to_file_descriptor (build_string (process_name), Qnil,
|
|
|
589 make_int (gpm_fd),
|
|
|
590 make_int (gpm_fd));
|
|
428
|
591
|
|
793
|
592 if (!NILP (gpm_process))
|
|
|
593 {
|
|
|
594 rval = 0;
|
|
|
595 Fprocess_kill_without_query (gpm_process, Qnil);
|
|
2834
|
596 gpm_filter = GET_DEFUN_LISP_OBJECT (Freceive_gpm_event);
|
|
853
|
597 set_process_filter (gpm_process, gpm_filter, 1, 0);
|
|
428
|
598
|
|
793
|
599 /* Keep track of the device for later */
|
|
|
600 /* Fput (gpm_process, intern ("gpm-device"), device); */
|
|
428
|
601 }
|
|
793
|
602 else
|
|
|
603 {
|
|
|
604 Gpm_Close ();
|
|
|
605 rval = -1;
|
|
|
606 }
|
|
|
607 }
|
|
428
|
608
|
|
793
|
609 return (rval ? Qnil : Qt);
|
|
428
|
610 }
|
|
|
611
|
|
|
612 void vars_of_gpmevent (void)
|
|
|
613 {
|
|
793
|
614 gpm_event_queue = Qnil;
|
|
|
615 gpm_event_queue_tail = Qnil;
|
|
|
616 staticpro (&gpm_event_queue);
|
|
|
617 staticpro (&gpm_event_queue_tail);
|
|
1204
|
618 dump_add_root_lisp_object (&gpm_event_queue);
|
|
|
619 dump_add_root_lisp_object (&gpm_event_queue_tail);
|
|
428
|
620 }
|
|
|
621
|
|
|
622 void syms_of_gpmevent (void)
|
|
|
623 {
|
|
793
|
624 DEFSUBR (Freceive_gpm_event);
|
|
|
625 DEFSUBR (Fgpm_enable);
|
|
|
626 DEFSUBR (Fgpm_enabled_p);
|
|
428
|
627 }
|
|
|
628
|
|
|
629 #endif /* HAVE_GPM */
|
