This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_x11events.c
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2010 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
24
25
#include <sys/types.h>
#include <sys/time.h>
26
#include <signal.h>
27
#include <unistd.h>
28
#include <limits.h> /* For INT_MAX */
30
31
#include "SDL_x11video.h"
#include "../../events/SDL_events_c.h"
32
#include "../../events/SDL_mouse_c.h"
34
#include "SDL_timer.h"
35
36
#include "SDL_syswm.h"
37
/*#define DEBUG_XEVENTS*/
39
40
41
42
static void
X11_DispatchEvent(_THIS)
{
SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
43
Display *display = videodata->display;
44
45
46
47
48
SDL_WindowData *data;
XEvent xevent;
int i;
SDL_zero(xevent); /* valgrind fix. --ryan. */
49
XNextEvent(display, &xevent);
51
52
53
/* filter events catchs XIM events and sends them to the correct
handler */
if (XFilterEvent(&xevent, None) == True) {
55
56
printf("Filtered event type = %d display = %d window = %d\n",
xevent.type, xevent.xany.display, xevent.xany.window);
57
58
59
60
#endif
return;
}
61
/* Send a SDL_SYSWMEVENT if the application wants them */
62
if (SDL_GetEventState(SDL_SYSWMEVENT) == SDL_ENABLE) {
63
64
65
66
67
68
69
70
71
SDL_SysWMmsg wmmsg;
SDL_VERSION(&wmmsg.version);
wmmsg.subsystem = SDL_SYSWM_X11;
wmmsg.event.xevent = xevent;
SDL_SendSysWMEvent(&wmmsg);
}
data = NULL;
72
73
74
if (videodata && videodata->windowlist) {
for (i = 0; i < videodata->numwindows; ++i) {
if ((videodata->windowlist[i] != NULL) &&
75
(videodata->windowlist[i]->xwindow == xevent.xany.window)) {
76
77
78
data = videodata->windowlist[i];
break;
}
79
80
81
82
83
}
}
if (!data) {
return;
}
86
87
printf("type = %d display = %d window = %d\n",
xevent.type, xevent.xany.display, xevent.xany.window);
89
90
91
92
93
switch (xevent.type) {
/* Gaining mouse coverage? */
case EnterNotify:{
#ifdef DEBUG_XEVENTS
94
printf("EnterNotify! (%d,%d,%d)\n",
95
96
xevent.xcrossing.x,
xevent.xcrossing.y,
97
xevent.xcrossing.mode);
98
99
100
101
102
if (xevent.xcrossing.mode == NotifyGrab)
printf("Mode: NotifyGrab\n");
if (xevent.xcrossing.mode == NotifyUngrab)
printf("Mode: NotifyUngrab\n");
#endif
103
SDL_SetMouseFocus(data->window);
104
105
106
107
108
109
}
break;
/* Losing mouse coverage? */
case LeaveNotify:{
#ifdef DEBUG_XEVENTS
110
printf("LeaveNotify! (%d,%d,%d)\n",
111
112
xevent.xcrossing.x,
xevent.xcrossing.y,
113
xevent.xcrossing.mode);
114
115
116
117
118
if (xevent.xcrossing.mode == NotifyGrab)
printf("Mode: NotifyGrab\n");
if (xevent.xcrossing.mode == NotifyUngrab)
printf("Mode: NotifyUngrab\n");
#endif
119
120
121
if (xevent.xcrossing.mode != NotifyGrab &&
xevent.xcrossing.mode != NotifyUngrab &&
xevent.xcrossing.detail != NotifyInferior) {
122
SDL_SetMouseFocus(NULL);
123
124
125
126
127
128
129
130
131
}
}
break;
/* Gaining input focus? */
case FocusIn:{
#ifdef DEBUG_XEVENTS
printf("FocusIn!\n");
#endif
132
SDL_SetKeyboardFocus(data->window);
133
134
135
136
137
138
139
140
141
142
143
144
145
#ifdef X_HAVE_UTF8_STRING
if (data->ic) {
XSetICFocus(data->ic);
}
#endif
}
break;
/* Losing input focus? */
case FocusOut:{
#ifdef DEBUG_XEVENTS
printf("FocusOut!\n");
#endif
146
SDL_SetKeyboardFocus(NULL);
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
#ifdef X_HAVE_UTF8_STRING
if (data->ic) {
XUnsetICFocus(data->ic);
}
#endif
}
break;
/* Generated upon EnterWindow and FocusIn */
case KeymapNotify:{
#ifdef DEBUG_XEVENTS
printf("KeymapNotify!\n");
#endif
/* FIXME:
X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector);
*/
}
break;
166
167
168
169
170
/* Has the keyboard layout changed? */
case MappingNotify:{
#ifdef DEBUG_XEVENTS
printf("MappingNotify!\n");
#endif
171
X11_UpdateKeymap(_this);
172
173
174
}
break;
175
176
177
/* Key press? */
case KeyPress:{
KeyCode keycode = xevent.xkey.keycode;
178
KeySym keysym = NoSymbol;
179
char text[SDL_TEXTINPUTEVENT_TEXT_SIZE];
180
Status status = 0;
181
182
183
184
#ifdef DEBUG_XEVENTS
printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
#endif
185
SDL_SendKeyboardKey(SDL_PRESSED, videodata->key_layout[keycode]);
187
188
if (videodata->key_layout[keycode] == SDLK_UNKNOWN) {
int min_keycode, max_keycode;
189
190
XDisplayKeycodes(display, &min_keycode, &max_keycode);
keysym = XKeycodeToKeysym(display, keycode, 0);
191
fprintf(stderr,
192
"The key you just pressed is not recognized by SDL. To help get this fixed, please report this to the SDL mailing list <sdl@libsdl.org> X11 KeyCode %d (%d), X11 KeySym 0x%lX (%s).\n",
193
194
keycode, keycode - min_keycode, keysym,
XKeysymToString(keysym));
198
SDL_zero(text);
199
200
201
#ifdef X_HAVE_UTF8_STRING
if (data->ic) {
Xutf8LookupString(data->ic, &xevent.xkey, text, sizeof(text),
202
&keysym, &status);
205
XLookupString(&xevent.xkey, text, sizeof(text), &keysym, NULL);
207
if (*text) {
208
SDL_SendKeyboardText(text);
210
211
212
213
214
215
216
217
218
219
}
break;
/* Key release? */
case KeyRelease:{
KeyCode keycode = xevent.xkey.keycode;
#ifdef DEBUG_XEVENTS
printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
#endif
220
SDL_SendKeyboardKey(SDL_RELEASED, videodata->key_layout[keycode]);
221
222
223
224
225
226
227
228
}
break;
/* Have we been iconified? */
case UnmapNotify:{
#ifdef DEBUG_XEVENTS
printf("UnmapNotify!\n");
#endif
229
230
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
231
232
233
234
235
236
237
238
}
break;
/* Have we been restored? */
case MapNotify:{
#ifdef DEBUG_XEVENTS
printf("MapNotify!\n");
#endif
239
240
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESTORED, 0, 0);
241
242
243
244
245
246
247
248
249
}
break;
/* Have we been resized or moved? */
case ConfigureNotify:{
#ifdef DEBUG_XEVENTS
printf("ConfigureNotify! (resize: %dx%d)\n",
xevent.xconfigure.width, xevent.xconfigure.height);
#endif
250
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_MOVED,
251
xevent.xconfigure.x, xevent.xconfigure.y);
252
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_RESIZED,
253
254
255
256
257
258
259
260
261
262
xevent.xconfigure.width,
xevent.xconfigure.height);
}
break;
/* Have we been requested to quit (or another client message?) */
case ClientMessage:{
if ((xevent.xclient.format == 32) &&
(xevent.xclient.data.l[0] == videodata->WM_DELETE_WINDOW)) {
263
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_CLOSE, 0, 0);
264
265
266
267
268
269
270
271
272
}
}
break;
/* Do we need to refresh ourselves? */
case Expose:{
#ifdef DEBUG_XEVENTS
printf("Expose (count = %d)\n", xevent.xexpose.count);
#endif
273
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED, 0, 0);
274
275
276
}
break;
277
case MotionNotify:{
278
#ifdef DEBUG_MOTION
279
printf("X11 motion: %d,%d\n", xevent.xmotion.x, xevent.xmotion.y);
281
SDL_SendMouseMotion(data->window, 0, xevent.xmotion.x, xevent.xmotion.y);
282
283
284
285
}
break;
case ButtonPress:{
286
SDL_SendMouseButton(data->window, SDL_PRESSED, xevent.xbutton.button);
287
288
289
290
}
break;
case ButtonRelease:{
291
SDL_SendMouseButton(data->window, SDL_RELEASED, xevent.xbutton.button);
292
293
294
}
break;
295
296
case PropertyNotify:{
#ifdef DEBUG_XEVENTS
297
298
299
300
301
unsigned char *propdata;
int status, real_format;
Atom real_type;
unsigned long items_read, items_left, i;
302
303
char *name = XGetAtomName(display, xevent.xproperty.atom);
if (name) {
304
printf("PropertyNotify: %s %s\n", name, (xevent.xproperty.state == PropertyDelete) ? "deleted" : "changed");
305
306
307
XFree(name);
}
308
status = XGetWindowProperty(display, data->xwindow, xevent.xproperty.atom, 0L, 8192L, False, AnyPropertyType, &real_type, &real_format, &items_read, &items_left, &propdata);
309
if (status == Success && items_read > 0) {
310
311
312
313
if (real_type == XA_INTEGER) {
int *values = (int *)propdata;
printf("{");
314
for (i = 0; i < items_read; i++) {
315
316
317
318
319
320
321
322
323
324
printf(" %d", values[i]);
}
printf(" }\n");
} else if (real_type == XA_CARDINAL) {
if (real_format == 32) {
Uint32 *values = (Uint32 *)propdata;
printf("{");
for (i = 0; i < items_read; i++) {
printf(" %d", values[i]);
326
327
328
329
330
331
332
printf(" }\n");
} else if (real_format == 16) {
Uint16 *values = (Uint16 *)propdata;
printf("{");
for (i = 0; i < items_read; i++) {
printf(" %d", values[i]);
334
335
336
337
338
339
340
printf(" }\n");
} else if (real_format == 8) {
Uint8 *values = (Uint8 *)propdata;
printf("{");
for (i = 0; i < items_read; i++) {
printf(" %d", values[i]);
342
343
344
345
346
347
348
349
350
351
352
353
354
355
printf(" }\n");
}
} else if (real_type == XA_STRING ||
real_type == videodata->UTF8_STRING) {
printf("{ \"%s\" }\n", propdata);
} else if (real_type == XA_ATOM) {
Atom *atoms = (Atom *)propdata;
printf("{");
for (i = 0; i < items_read; i++) {
char *name = XGetAtomName(display, atoms[i]);
if (name) {
printf(" %s", name);
XFree(name);
358
359
360
361
362
363
364
printf(" }\n");
} else {
char *name = XGetAtomName(display, real_type);
printf("Unknown type: %ld (%s)\n", real_type, name ? name : "UNKNOWN");
if (name) {
XFree(name);
}
368
369
370
}
break;
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
/* Copy the selection from XA_CUT_BUFFER0 to the requested property */
case SelectionRequest: {
XSelectionRequestEvent *req;
XEvent sevent;
int seln_format;
unsigned long nbytes;
unsigned long overflow;
unsigned char *seln_data;
req = &xevent.xselectionrequest;
#ifdef DEBUG_XEVENTS
printf("SelectionRequest (requestor = %ld, target = %ld)\n",
req->requestor, req->target);
#endif
386
SDL_zero(sevent);
387
sevent.xany.type = SelectionNotify;
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
sevent.xselection.selection = req->selection;
sevent.xselection.target = None;
sevent.xselection.property = None;
sevent.xselection.requestor = req->requestor;
sevent.xselection.time = req->time;
if (XGetWindowProperty(display, DefaultRootWindow(display),
XA_CUT_BUFFER0, 0, INT_MAX/4, False, req->target,
&sevent.xselection.target, &seln_format, &nbytes,
&overflow, &seln_data) == Success) {
if (sevent.xselection.target == req->target) {
XChangeProperty(display, req->requestor, req->property,
sevent.xselection.target, seln_format, PropModeReplace,
seln_data, nbytes);
sevent.xselection.property = req->property;
}
XFree(seln_data);
}
XSendEvent(display, req->requestor, False, 0, &sevent);
XSync(display, False);
}
break;
case SelectionNotify: {
#ifdef DEBUG_XEVENTS
printf("SelectionNotify (requestor = %ld, target = %ld)\n",
xevent.xselection.requestor, xevent.xselection.target);
#endif
videodata->selection_waiting = SDL_FALSE;
}
break;
420
#ifdef DEBUG_XEVENTS
421
printf("Unhandled event %d\n", xevent.type);
422
423
424
425
426
427
428
#endif
}
break;
}
}
/* Ack! XPending() actually performs a blocking read if no events available */
429
static int
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
X11_Pending(Display * display)
{
/* Flush the display connection and look to see if events are queued */
XFlush(display);
if (XEventsQueued(display, QueuedAlready)) {
return (1);
}
/* More drastic measures are required -- see if X is ready to talk */
{
static struct timeval zero_time; /* static == 0 */
int x11_fd;
fd_set fdset;
x11_fd = ConnectionNumber(display);
FD_ZERO(&fdset);
FD_SET(x11_fd, &fdset);
if (select(x11_fd + 1, &fdset, NULL, NULL, &zero_time) == 1) {
return (XPending(display));
}
}
/* Oh well, nothing is ready .. */
return (0);
}
void
X11_PumpEvents(_THIS)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
461
462
463
464
/* Update activity every 30 seconds to prevent screensaver */
if (_this->suspend_screensaver) {
Uint32 now = SDL_GetTicks();
if (!data->screensaver_activity ||
465
(int) (now - data->screensaver_activity) >= 30000) {
466
467
468
469
470
XResetScreenSaver(data->display);
data->screensaver_activity = now;
}
}
471
472
473
474
475
476
/* Keep processing pending events */
while (X11_Pending(data->display)) {
X11_DispatchEvent(_this);
}
}
477
478
479
480
481
/* This is so wrong it hurts */
#define GNOME_SCREENSAVER_HACK
#ifdef GNOME_SCREENSAVER_HACK
#include <unistd.h>
static pid_t screensaver_inhibit_pid;
482
483
static void
gnome_screensaver_disable()
484
485
486
{
screensaver_inhibit_pid = fork();
if (screensaver_inhibit_pid == 0) {
487
488
489
close(0);
close(1);
close(2);
490
491
492
493
execl("/usr/bin/gnome-screensaver-command",
"gnome-screensaver-command",
"--inhibit",
"--reason",
494
"GNOME screensaver doesn't respect MIT-SCREEN-SAVER", NULL);
495
496
497
exit(2);
}
}
498
499
static void
gnome_screensaver_enable()
500
501
502
503
504
{
kill(screensaver_inhibit_pid, 15);
}
#endif
506
X11_SuspendScreenSaver(_THIS)
508
509
510
511
#if SDL_VIDEO_DRIVER_X11_SCRNSAVER
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
int dummy;
int major_version, minor_version;
513
514
515
516
517
518
519
520
if (SDL_X11_HAVE_XSS) {
/* XScreenSaverSuspend was introduced in MIT-SCREEN-SAVER 1.1 */
if (!XScreenSaverQueryExtension(data->display, &dummy, &dummy) ||
!XScreenSaverQueryVersion(data->display,
&major_version, &minor_version) ||
major_version < 1 || (major_version == 1 && minor_version < 1)) {
return;
}
522
523
XScreenSaverSuspend(data->display, _this->suspend_screensaver);
XResetScreenSaver(data->display);
525
#endif
527
528
529
530
531
532
#ifdef GNOME_SCREENSAVER_HACK
if (_this->suspend_screensaver) {
gnome_screensaver_disable();
} else {
gnome_screensaver_enable();
}
534
535
536
}
/* vi: set ts=4 sw=4 expandtab: */