|
398
|
1 /* GPM (General purpose mouse) functions
|
|
|
2 Copyright (C) 1997 William M. Perry <wmperry@gnu.org>
|
|
|
3 Copyright (C) 1999 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 This file is part of XEmacs.
|
|
|
6
|
|
|
7 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
8 under the terms of the GNU General Public License as published by the
|
|
|
9 Free Software Foundation; either version 2, or (at your option) any
|
|
|
10 later version.
|
|
|
11
|
|
|
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
15 for more details.
|
|
|
16
|
|
|
17 You should have received a copy of the GNU General Public License
|
|
|
18 along with XEmacs; see the file COPYING. If not, write to
|
|
|
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
20 Boston, MA 02111-1307, USA. */
|
|
|
21
|
|
|
22 /* Synched up with: Not in FSF. */
|
|
|
23
|
|
|
24 /* Authors: William Perry */
|
|
153
|
25
|
|
|
26 #include <config.h>
|
|
|
27 #include "lisp.h"
|
|
272
|
28 #include "console.h"
|
|
153
|
29 #include "console-tty.h"
|
|
|
30 #include "device.h"
|
|
|
31 #include "events.h"
|
|
|
32 #include "events-mod.h"
|
|
|
33 #include "sysdep.h"
|
|
398
|
34 #include "commands.h"
|
|
|
35 #include "lstream.h"
|
|
|
36 #include "sysproc.h" /* for MAXDESC */
|
|
|
37 #include "process.h"
|
|
153
|
38
|
|
|
39 #ifdef HAVE_GPM
|
|
|
40 #include "gpmevent.h"
|
|
|
41 #include <gpm.h>
|
|
|
42
|
|
|
43 #if (!defined(__linux__)) /* possible under xterm */
|
|
|
44 #define KG_SHIFT 0
|
|
|
45 #define KG_CTRL 2
|
|
|
46 #define KG_ALT 3
|
|
|
47 #else
|
|
272
|
48 #include <linux/keyboard.h>
|
|
153
|
49 #endif
|
|
|
50
|
|
398
|
51 extern int gpm_tried;
|
|
|
52 extern void *gpm_stack;
|
|
|
53
|
|
|
54 static int (*orig_event_pending_p) (int);
|
|
|
55 static void (*orig_next_event_cb) (Lisp_Event *);
|
|
|
56
|
|
|
57 static Lisp_Object gpm_event_queue;
|
|
|
58 static Lisp_Object gpm_event_queue_tail;
|
|
|
59
|
|
|
60 struct __gpm_state {
|
|
|
61 int gpm_tried;
|
|
|
62 int gpm_flag;
|
|
|
63 void *gpm_stack;
|
|
|
64 };
|
|
|
65
|
|
|
66 static struct __gpm_state gpm_state_information[MAXDESC];
|
|
|
67
|
|
|
68 static void
|
|
|
69 store_gpm_state (int fd)
|
|
153
|
70 {
|
|
398
|
71 gpm_state_information[fd].gpm_tried = gpm_tried;
|
|
|
72 gpm_state_information[fd].gpm_flag = gpm_flag;
|
|
|
73 gpm_state_information[fd].gpm_stack = gpm_stack;
|
|
|
74 }
|
|
|
75
|
|
|
76 static void
|
|
|
77 restore_gpm_state (int fd)
|
|
|
78 {
|
|
|
79 gpm_tried = gpm_state_information[fd].gpm_tried;
|
|
|
80 gpm_flag = gpm_state_information[fd].gpm_flag;
|
|
|
81 gpm_stack = gpm_state_information[fd].gpm_stack;
|
|
|
82 gpm_consolefd = gpm_fd = fd;
|
|
|
83 }
|
|
153
|
84
|
|
398
|
85 static void
|
|
|
86 clear_gpm_state (int fd)
|
|
|
87 {
|
|
|
88 if (fd >= 0)
|
|
|
89 {
|
|
|
90 memset(&gpm_state_information[fd], '\0', sizeof(struct __gpm_state));
|
|
|
91 }
|
|
|
92 gpm_tried = gpm_flag = 1;
|
|
|
93 gpm_fd = gpm_consolefd = -1;
|
|
|
94 gpm_stack = NULL;
|
|
|
95 }
|
|
|
96
|
|
|
97 static int
|
|
|
98 get_process_infd (Lisp_Process *p)
|
|
|
99 {
|
|
|
100 Lisp_Object instr, outstr;
|
|
|
101 get_process_streams (p, &instr, &outstr);
|
|
|
102 assert (!NILP (instr));
|
|
|
103 return filedesc_stream_fd (XLSTREAM (instr));
|
|
|
104 }
|
|
272
|
105
|
|
398
|
106 DEFUN ("receive-gpm-event", Freceive_gpm_event, 0, 2, 0, /*
|
|
|
107 Run GPM_GetEvent().
|
|
|
108 This function is the process handler for the GPM connection.
|
|
|
109 */
|
|
|
110 (process, string))
|
|
|
111 {
|
|
|
112 Gpm_Event ev;
|
|
|
113 int modifiers = 0;
|
|
|
114 int button = 1;
|
|
|
115 Lisp_Object fake_event;
|
|
|
116 Lisp_Event *event = NULL;
|
|
|
117 struct gcpro gcpro1;
|
|
|
118 static int num_events;
|
|
|
119
|
|
|
120 CHECK_PROCESS (process);
|
|
|
121
|
|
|
122 restore_gpm_state (get_process_infd (XPROCESS (process)));
|
|
|
123
|
|
|
124 if (!Gpm_GetEvent(&ev))
|
|
|
125 {
|
|
|
126 warn_when_safe (Qnil, Qcritical, "Gpm_GetEvent failed - %d", gpm_fd);
|
|
|
127 return(Qzero);
|
|
|
128 }
|
|
|
129
|
|
|
130 GCPRO1(fake_event);
|
|
272
|
131
|
|
398
|
132 num_events++;
|
|
|
133
|
|
|
134 fake_event = Fmake_event (Qnil, Qnil);
|
|
|
135 event = XEVENT(fake_event);
|
|
|
136
|
|
|
137 event->timestamp = 0;
|
|
|
138 event->channel = Fselected_frame (Qnil); /* CONSOLE_SELECTED_FRAME (con); */
|
|
|
139
|
|
|
140 /* Whow, wouldn't named defines be NICE!?!?! */
|
|
|
141 modifiers = 0;
|
|
153
|
142
|
|
404
|
143 if (ev.modifiers & 1) modifiers |= XEMACS_MOD_SHIFT;
|
|
|
144 if (ev.modifiers & 2) modifiers |= XEMACS_MOD_META;
|
|
|
145 if (ev.modifiers & 4) modifiers |= XEMACS_MOD_CONTROL;
|
|
|
146 if (ev.modifiers & 8) modifiers |= XEMACS_MOD_META;
|
|
398
|
147
|
|
|
148 if (ev.buttons & GPM_B_LEFT)
|
|
|
149 {
|
|
|
150 button = 1;
|
|
|
151 }
|
|
|
152 else if (ev.buttons & GPM_B_MIDDLE)
|
|
|
153 {
|
|
|
154 button = 2;
|
|
|
155 }
|
|
|
156 else if (ev.buttons & GPM_B_RIGHT)
|
|
|
157 {
|
|
|
158 button = 3;
|
|
|
159 }
|
|
153
|
160
|
|
398
|
161 switch (GPM_BARE_EVENTS(ev.type)) {
|
|
|
162 case GPM_DOWN:
|
|
|
163 case GPM_UP:
|
|
|
164 event->event_type =
|
|
|
165 (ev.type & GPM_DOWN) ? button_press_event : button_release_event;
|
|
|
166 event->event.button.x = ev.x;
|
|
|
167 event->event.button.y = ev.y;
|
|
|
168 event->event.button.button = button;
|
|
|
169 event->event.button.modifiers = modifiers;
|
|
|
170 break;
|
|
|
171 case GPM_MOVE:
|
|
|
172 case GPM_DRAG:
|
|
|
173 event->event_type = pointer_motion_event;
|
|
|
174 event->event.motion.x = ev.x;
|
|
|
175 event->event.motion.y = ev.y;
|
|
|
176 event->event.motion.modifiers = modifiers;
|
|
|
177 default:
|
|
|
178 /* This will never happen */
|
|
|
179 break;
|
|
|
180 }
|
|
|
181
|
|
|
182 /* Handle the event */
|
|
|
183 enqueue_event (fake_event, &gpm_event_queue, &gpm_event_queue_tail);
|
|
|
184
|
|
|
185 UNGCPRO;
|
|
|
186
|
|
|
187 return (Qzero);
|
|
|
188 }
|
|
|
189
|
|
|
190 static void turn_off_gpm (char *process_name)
|
|
|
191 {
|
|
|
192 Lisp_Object process = Fget_process (build_string (process_name));
|
|
|
193 int fd = -1;
|
|
153
|
194
|
|
398
|
195 if (NILP (process))
|
|
|
196 {
|
|
|
197 /* Something happened to our GPM process - fail silently */
|
|
|
198 return;
|
|
|
199 }
|
|
|
200
|
|
|
201 fd = get_process_infd (XPROCESS (process));
|
|
|
202
|
|
|
203 restore_gpm_state (fd);
|
|
|
204
|
|
|
205 Gpm_Close();
|
|
|
206
|
|
|
207 clear_gpm_state (fd);
|
|
|
208
|
|
|
209 Fdelete_process (build_string (process_name));
|
|
|
210 }
|
|
|
211
|
|
|
212 #ifdef TIOCLINUX
|
|
|
213 static Lisp_Object
|
|
|
214 tty_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type)
|
|
|
215 {
|
|
|
216 /* This function can GC */
|
|
|
217 struct device *d = decode_device (Qnil);
|
|
|
218 int fd = DEVICE_INFD (d);
|
|
|
219 char c = 3;
|
|
|
220 Lisp_Object output_stream;
|
|
|
221 Lisp_Object terminal_stream;
|
|
|
222 Lisp_Object output_string;
|
|
|
223 struct gcpro gcpro1,gcpro2,gcpro3;
|
|
|
224
|
|
|
225 GCPRO3(output_stream,terminal_stream,output_string);
|
|
|
226
|
|
|
227 /* The ioctl() to paste actually puts things in the input queue of
|
|
|
228 ** the virtual console, so we need to trap that data, since we are
|
|
|
229 ** supposed to return the actual string selection from this
|
|
|
230 ** function.
|
|
|
231 */
|
|
153
|
232
|
|
398
|
233 /* I really hate doing this, but it doesn't seem to cause any
|
|
|
234 ** problems, and it makes the Lstream_read stuff further down
|
|
|
235 ** error out correctly instead of trying to indefinitely read from
|
|
|
236 ** the console.
|
|
|
237 **
|
|
|
238 ** There is no set_descriptor_blocking() function call, but in my
|
|
|
239 ** testing under linux, it has not proved fatal to leave the
|
|
|
240 ** descriptor in non-blocking mode.
|
|
|
241 **
|
|
|
242 ** William Perry Nov 5, 1999
|
|
|
243 */
|
|
|
244 set_descriptor_non_blocking (fd);
|
|
|
245
|
|
|
246 /* We need two streams, one for reading from the selected device,
|
|
|
247 ** and one to write the data into. There is no writable version
|
|
|
248 ** of the lisp-string lstream, so we make do with a resizing
|
|
|
249 ** buffer stream, and make a string out of it after we are
|
|
|
250 ** done.
|
|
|
251 */
|
|
|
252 output_stream = make_resizing_buffer_output_stream ();
|
|
|
253 terminal_stream = make_filedesc_input_stream (fd, 0, -1, LSTR_BLOCKED_OK);
|
|
|
254 output_string = Qnil;
|
|
|
255
|
|
|
256 /* #### We should arguably use a specbind() and an unwind routine here,
|
|
|
257 ** #### but I don't care that much right now.
|
|
|
258 */
|
|
|
259 if (NILP (output_stream) || NILP (terminal_stream))
|
|
|
260 {
|
|
|
261 /* Should we signal an error here? */
|
|
|
262 goto out;
|
|
|
263 }
|
|
|
264
|
|
|
265 if (ioctl (fd, TIOCLINUX, &c) < 0)
|
|
|
266 {
|
|
|
267 /* Could not get the selection - eek */
|
|
|
268 UNGCPRO;
|
|
|
269 return (Qnil);
|
|
|
270 }
|
|
|
271
|
|
|
272 while (1)
|
|
|
273 {
|
|
|
274 Bufbyte tempbuf[1024]; /* some random amount */
|
|
|
275 ssize_t i;
|
|
|
276 ssize_t size_in_bytes =
|
|
|
277 Lstream_read (XLSTREAM (terminal_stream),
|
|
|
278 tempbuf, sizeof (tempbuf));
|
|
|
279
|
|
|
280 if (size_in_bytes <= 0)
|
|
|
281 {
|
|
|
282 /* end of the stream */
|
|
|
283 break;
|
|
|
284 }
|
|
|
285
|
|
|
286 /* convert CR->LF */
|
|
|
287 for (i = 0; i < size_in_bytes; i++)
|
|
|
288 {
|
|
|
289 if (tempbuf[i] == '\r')
|
|
|
290 {
|
|
|
291 tempbuf[i] = '\n';
|
|
|
292 }
|
|
|
293 }
|
|
|
294
|
|
|
295 Lstream_write (XLSTREAM (output_stream), tempbuf, size_in_bytes);
|
|
|
296 }
|
|
|
297
|
|
|
298 Lstream_flush (XLSTREAM (output_stream));
|
|
|
299
|
|
|
300 output_string = make_string (resizing_buffer_stream_ptr (XLSTREAM (output_stream)),
|
|
|
301 Lstream_byte_count (XLSTREAM (output_stream)));
|
|
|
302
|
|
|
303 Lstream_delete (XLSTREAM (output_stream));
|
|
|
304 Lstream_delete (XLSTREAM (terminal_stream));
|
|
|
305
|
|
|
306 out:
|
|
|
307 UNGCPRO;
|
|
|
308 return (output_string);
|
|
153
|
309 }
|
|
|
310
|
|
398
|
311 static Lisp_Object
|
|
410
|
312 tty_selection_exists_p (Lisp_Object selection, Lisp_Object selection_type)
|
|
398
|
313 {
|
|
|
314 return (Qt);
|
|
|
315 }
|
|
|
316 #endif /* TIOCLINUX */
|
|
|
317
|
|
|
318 #if 0
|
|
|
319 static Lisp_Object
|
|
410
|
320 tty_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
|
|
|
321 Lisp_Object how_to_add, Lisp_Object selection_type)
|
|
398
|
322 {
|
|
|
323 /* There is no way to do this cleanly - the GPM selection
|
|
|
324 ** 'protocol' (actually the TIOCLINUX ioctl) requires a start and
|
|
|
325 ** end position on the _screen_, not a string to stick in there.
|
|
|
326 ** Lame.
|
|
|
327 **
|
|
|
328 ** William Perry Nov 4, 1999
|
|
|
329 */
|
|
|
330 }
|
|
|
331 #endif
|
|
|
332
|
|
|
333 /* This function appears to work once in a blue moon. I'm not sure
|
|
|
334 ** exactly why either. *sigh*
|
|
|
335 **
|
|
|
336 ** William Perry Nov 4, 1999
|
|
|
337 **
|
|
|
338 ** Apparently, this is the way (mouse-position) is supposed to work,
|
|
|
339 ** and I was just expecting something else. (mouse-pixel-position)
|
|
|
340 ** works just fine.
|
|
|
341 **
|
|
|
342 ** William Perry Nov 7, 1999
|
|
|
343 */
|
|
|
344 static int
|
|
|
345 tty_get_mouse_position (struct device *d, Lisp_Object *frame, int *x, int *y)
|
|
153
|
346 {
|
|
398
|
347 Gpm_Event ev;
|
|
|
348 int num_buttons;
|
|
|
349
|
|
|
350 memset(&ev,'\0',sizeof(ev));
|
|
|
351
|
|
|
352 num_buttons = Gpm_GetSnapshot(&ev);
|
|
|
353
|
|
|
354 if (!num_buttons)
|
|
|
355 {
|
|
|
356 /* This means there are events pending... */
|
|
|
357
|
|
|
358 /* #### In theory, we should drain the events pending, stick
|
|
|
359 ** #### them in the queue, and return the mouse position
|
|
|
360 ** #### anyway.
|
|
|
361 */
|
|
|
362 return(-1);
|
|
|
363 }
|
|
|
364 *x = ev.x;
|
|
|
365 *y = ev.y;
|
|
|
366 *frame = DEVICE_SELECTED_FRAME (d);
|
|
|
367 return (1);
|
|
|
368 }
|
|
|
369
|
|
|
370 static void
|
|
|
371 tty_set_mouse_position (struct window *w, int x, int y)
|
|
|
372 {
|
|
|
373 /*
|
|
|
374 #### I couldn't find any GPM functions that set the mouse position.
|
|
|
375 #### Mr. Perry had left this function empty; that must be why.
|
|
|
376 #### karlheg
|
|
|
377 */
|
|
|
378 }
|
|
|
379
|
|
|
380 static int gpm_event_pending_p (int user_p)
|
|
|
381 {
|
|
|
382 Lisp_Object event;
|
|
153
|
383
|
|
398
|
384 EVENT_CHAIN_LOOP (event, gpm_event_queue)
|
|
|
385 {
|
|
|
386 if (!user_p || command_event_p (event))
|
|
|
387 {
|
|
|
388 return (1);
|
|
|
389 }
|
|
|
390 }
|
|
|
391 return (orig_event_pending_p (user_p));
|
|
|
392 }
|
|
|
393
|
|
|
394 static void gpm_next_event_cb (Lisp_Event *event)
|
|
|
395 {
|
|
|
396 /* #### It would be nice to preserve some sort of ordering of the
|
|
|
397 ** #### different types of events, but that would be quite a bit
|
|
|
398 ** #### of work, and would more than likely break the abstraction
|
|
|
399 ** #### between the other event loops and this one.
|
|
|
400 */
|
|
|
401
|
|
|
402 if (!NILP (gpm_event_queue))
|
|
|
403 {
|
|
|
404 Lisp_Object queued_event = dequeue_event (&gpm_event_queue, &gpm_event_queue_tail);
|
|
|
405 *event = *(XEVENT (queued_event));
|
|
|
406
|
|
|
407 if (event->event_type == pointer_motion_event)
|
|
|
408 {
|
|
|
409 struct device *d = decode_device (event->channel);
|
|
|
410 int fd = DEVICE_INFD (d);
|
|
153
|
411
|
|
398
|
412 /* Ok, now this is just freaky. Bear with me though.
|
|
|
413 **
|
|
|
414 ** If you run gnuclient and attach to a XEmacs running in
|
|
|
415 ** X or on another TTY, the mouse cursor does not get
|
|
|
416 ** drawn correctly. This is because the ioctl() fails
|
|
|
417 ** with EPERM because the TTY specified is not our
|
|
|
418 ** controlling terminal. If you are the superuser, it
|
|
|
419 ** will work just spiffy. The appropriate source file (at
|
|
|
420 ** least in linux 2.2.x) is
|
|
|
421 ** .../linux/drivers/char/console.c in the function
|
|
|
422 ** tioclinux(). The following bit of code is brutal to
|
|
|
423 ** us:
|
|
|
424 **
|
|
|
425 ** if (current->tty != tty && !suser())
|
|
|
426 ** return -EPERM;
|
|
|
427 **
|
|
|
428 ** I even tried setting us as a process leader, removing
|
|
|
429 ** our controlling terminal, and then using the TIOCSCTTY
|
|
|
430 ** to set up a new controlling terminal, all with no luck.
|
|
|
431 **
|
|
|
432 ** What is even weirder is if you run XEmacs in a VC, and
|
|
|
433 ** attach to it from another VC with gnuclient, go back to
|
|
|
434 ** the original VC and hit a key, the mouse pointer
|
|
|
435 ** displays (in BOTH VCs), until you hit a key in the
|
|
|
436 ** second VC, after which it does not display in EITHER
|
|
|
437 ** VC. Bizarre, no?
|
|
|
438 **
|
|
|
439 ** All I can say is thank god Linux comes with source code
|
|
|
440 ** or I would have been completely confused. Well, ok,
|
|
|
441 ** I'm still completely confused. I don't see why they
|
|
|
442 ** don't just check the permissions on the device
|
|
|
443 ** (actually, if you have enough access to it to get the
|
|
|
444 ** console's file descriptor, you should be able to do
|
|
|
445 ** with it as you wish, but maybe that is just me).
|
|
|
446 **
|
|
|
447 ** William M. Perry - Nov 9, 1999
|
|
|
448 */
|
|
|
449
|
|
|
450 Gpm_DrawPointer (event->event.motion.x,event->event.motion.y, fd);
|
|
|
451 }
|
|
|
452
|
|
|
453 return;
|
|
|
454 }
|
|
|
455
|
|
|
456 orig_next_event_cb (event);
|
|
|
457 }
|
|
|
458
|
|
|
459 static void hook_event_callbacks_once (void)
|
|
|
460 {
|
|
|
461 static int hooker;
|
|
|
462
|
|
|
463 if (!hooker)
|
|
|
464 {
|
|
|
465 orig_event_pending_p = event_stream->event_pending_p;
|
|
|
466 orig_next_event_cb = event_stream->next_event_cb;
|
|
|
467 event_stream->event_pending_p = gpm_event_pending_p;
|
|
|
468 event_stream->next_event_cb = gpm_next_event_cb;
|
|
|
469 hooker = 1;
|
|
|
470 }
|
|
153
|
471 }
|
|
|
472
|
|
398
|
473 static void hook_console_methods_once (void)
|
|
|
474 {
|
|
|
475 static int hooker;
|
|
|
476
|
|
|
477 if (!hooker)
|
|
|
478 {
|
|
|
479 /* Install the mouse position methods for the TTY console type */
|
|
|
480 CONSOLE_HAS_METHOD (tty, get_mouse_position);
|
|
|
481 CONSOLE_HAS_METHOD (tty, set_mouse_position);
|
|
|
482 CONSOLE_HAS_METHOD (tty, get_foreign_selection);
|
|
|
483 CONSOLE_HAS_METHOD (tty, selection_exists_p);
|
|
|
484 #if 0
|
|
|
485 CONSOLE_HAS_METHOD (tty, own_selection);
|
|
153
|
486 #endif
|
|
398
|
487 }
|
|
|
488 }
|
|
|
489
|
|
|
490 DEFUN ("gpm-enabled-p", Fgpm_enabled_p, 0, 1, 0, /*
|
|
|
491 Return non-nil if GPM mouse support is currently enabled on DEVICE.
|
|
|
492 */
|
|
|
493 (device))
|
|
|
494 {
|
|
|
495 char *console_name = ttyname (DEVICE_INFD (decode_device (device)));
|
|
|
496 char process_name[1024];
|
|
|
497 Lisp_Object proc;
|
|
|
498
|
|
|
499 if (!console_name)
|
|
|
500 {
|
|
|
501 return (Qnil);
|
|
|
502 }
|
|
|
503
|
|
|
504 memset (process_name, '\0', sizeof(process_name));
|
|
|
505 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s", console_name);
|
|
|
506
|
|
|
507 proc = Fget_process (build_string (process_name));
|
|
|
508
|
|
|
509 if (NILP (proc))
|
|
|
510 {
|
|
|
511 return (Qnil);
|
|
|
512 }
|
|
|
513
|
|
|
514 if (1) /* (PROCESS_LIVE_P (proc)) */
|
|
|
515 {
|
|
|
516 return (Qt);
|
|
|
517 }
|
|
|
518 return (Qnil);
|
|
|
519 }
|
|
|
520
|
|
|
521 DEFUN ("gpm-enable", Fgpm_enable, 0, 2, 0, /*
|
|
|
522 Toggle accepting of GPM mouse events.
|
|
|
523 */
|
|
|
524 (device, arg))
|
|
|
525 {
|
|
|
526 Gpm_Connect conn;
|
|
|
527 int rval;
|
|
|
528 Lisp_Object gpm_process;
|
|
|
529 Lisp_Object gpm_filter;
|
|
|
530 struct device *d = decode_device (device);
|
|
|
531 int fd = DEVICE_INFD (d);
|
|
|
532 char *console_name = ttyname (fd);
|
|
|
533 char process_name[1024];
|
|
|
534
|
|
|
535 hook_event_callbacks_once ();
|
|
|
536 hook_console_methods_once ();
|
|
|
537
|
|
|
538 if (noninteractive)
|
|
|
539 {
|
|
|
540 error ("Can't connect to GPM in batch mode.");
|
|
|
541 }
|
|
|
542
|
|
|
543 if (!console_name)
|
|
|
544 {
|
|
|
545 /* Something seriously wrong here... */
|
|
|
546 return (Qnil);
|
|
|
547 }
|
|
|
548
|
|
|
549 memset (process_name, '\0', sizeof(process_name));
|
|
|
550 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s", console_name);
|
|
|
551
|
|
|
552 if (NILP (arg))
|
|
|
553 {
|
|
|
554 turn_off_gpm (process_name);
|
|
|
555 return (Qnil);
|
|
|
556 }
|
|
|
557
|
|
|
558 /* DANGER DANGER.
|
|
|
559 ** Though shalt not call (gpm-enable t) after we have already
|
|
|
560 ** started, or stuff blows up.
|
|
|
561 */
|
|
|
562 if (!NILP (Fgpm_enabled_p (device)))
|
|
|
563 {
|
|
|
564 error ("GPM already enabled for this console.");
|
|
|
565 }
|
|
|
566
|
|
|
567 conn.eventMask = GPM_DOWN|GPM_UP|GPM_MOVE|GPM_DRAG;
|
|
|
568 conn.defaultMask = GPM_MOVE;
|
|
|
569 conn.minMod = 0;
|
|
|
570 conn.maxMod = ((1<<KG_SHIFT)|(1<<KG_ALT)|(1<<KG_CTRL));
|
|
|
571
|
|
|
572 /* Reset some silly static variables so that multiple Gpm_Open()
|
|
|
573 ** calls have even a sligh chance of working
|
|
|
574 */
|
|
|
575 gpm_tried = 0;
|
|
|
576 gpm_flag = 0;
|
|
|
577 gpm_stack = NULL;
|
|
|
578
|
|
|
579 /* Make sure Gpm_Open() does ioctl() on the correct
|
|
|
580 ** descriptor, or it can get the wrong terminal sizes, etc.
|
|
|
581 */
|
|
|
582 gpm_consolefd = fd;
|
|
|
583
|
|
|
584 /* We have to pass the virtual console manually, otherwise if you
|
|
|
585 ** use 'gnuclient -nw' to connect to an XEmacs that is running in
|
|
|
586 ** X, Gpm_Open() tries to use ttyname(0 | 1 | 2) to find out which
|
|
|
587 ** console you are using, which is of course not correct for the
|
|
|
588 ** new tty device.
|
|
|
589 */
|
|
|
590 if (strncmp (console_name, "/dev/tty",8) || !isdigit (console_name[8]))
|
|
|
591 {
|
|
|
592 /* Urk, something really wrong */
|
|
|
593 return (Qnil);
|
|
|
594 }
|
|
|
595
|
|
|
596 rval = Gpm_Open (&conn, atoi(console_name + 8));
|
|
|
597
|
|
|
598 switch (rval) {
|
|
|
599 case -1: /* General failure */
|
|
|
600 break;
|
|
|
601 case -2: /* We are running under an XTerm */
|
|
|
602 Gpm_Close();
|
|
|
603 break;
|
|
|
604 default:
|
|
|
605 /* Is this really necessary? */
|
|
|
606 set_descriptor_non_blocking (gpm_fd);
|
|
|
607 store_gpm_state (gpm_fd);
|
|
|
608 gpm_process = connect_to_file_descriptor (build_string (process_name), Qnil,
|
|
|
609 make_int (gpm_fd),
|
|
|
610 make_int (gpm_fd));
|
|
|
611
|
|
|
612 if (!NILP (gpm_process))
|
|
|
613 {
|
|
|
614 rval = 0;
|
|
|
615 Fprocess_kill_without_query (gpm_process, Qnil);
|
|
|
616 XSETSUBR (gpm_filter, &SFreceive_gpm_event);
|
|
|
617 set_process_filter (gpm_process, gpm_filter, 1);
|
|
|
618
|
|
|
619 /* Keep track of the device for later */
|
|
|
620 /* Fput (gpm_process, intern ("gpm-device"), device); */
|
|
|
621 }
|
|
|
622 else
|
|
|
623 {
|
|
|
624 Gpm_Close();
|
|
|
625 rval = -1;
|
|
|
626 }
|
|
|
627 }
|
|
|
628
|
|
|
629 return(rval ? Qnil : Qt);
|
|
|
630 }
|
|
|
631
|
|
|
632 void vars_of_gpmevent (void)
|
|
|
633 {
|
|
|
634 gpm_event_queue = Qnil;
|
|
|
635 gpm_event_queue_tail = Qnil;
|
|
|
636 staticpro (&gpm_event_queue);
|
|
|
637 staticpro (&gpm_event_queue_tail);
|
|
|
638 pdump_wire (&gpm_event_queue);
|
|
|
639 pdump_wire (&gpm_event_queue_tail);
|
|
|
640 }
|
|
|
641
|
|
|
642 void syms_of_gpmevent (void)
|
|
|
643 {
|
|
|
644 DEFSUBR (Freceive_gpm_event);
|
|
|
645 DEFSUBR (Fgpm_enable);
|
|
|
646 DEFSUBR (Fgpm_enabled_p);
|
|
|
647 }
|
|
|
648
|
|
|
649 #endif /* HAVE_GPM */
|
