File: | dix/touch.c |
Location: | line 800, column 9 |
Description: | Access to field 'inputClients' results in a dereference of a null pointer (loaded from variable 'inputMasks') |
1 | /* | |||||
2 | * Copyright © 2011 Collabra Ltd. | |||||
3 | * Copyright © 2011 Red Hat, Inc. | |||||
4 | * | |||||
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |||||
6 | * copy of this software and associated documentation files (the "Software"), | |||||
7 | * to deal in the Software without restriction, including without limitation | |||||
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |||||
9 | * and/or sell copies of the Software, and to permit persons to whom the | |||||
10 | * Software is furnished to do so, subject to the following conditions: | |||||
11 | * | |||||
12 | * The above copyright notice and this permission notice (including the next | |||||
13 | * paragraph) shall be included in all copies or substantial portions of the | |||||
14 | * Software. | |||||
15 | * | |||||
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||||
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||||
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |||||
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||||
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |||||
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |||||
22 | * DEALINGS IN THE SOFTWARE. | |||||
23 | * | |||||
24 | * Author: Daniel Stone <daniel@fooishbar.org> | |||||
25 | */ | |||||
26 | ||||||
27 | #ifdef HAVE_DIX_CONFIG_H1 | |||||
28 | #include <dix-config.h> | |||||
29 | #endif | |||||
30 | ||||||
31 | #include "inputstr.h" | |||||
32 | #include "scrnintstr.h" | |||||
33 | #include "dixgrabs.h" | |||||
34 | ||||||
35 | #include "eventstr.h" | |||||
36 | #include "exevents.h" | |||||
37 | #include "exglobals.h" | |||||
38 | #include "inpututils.h" | |||||
39 | #include "eventconvert.h" | |||||
40 | #include "windowstr.h" | |||||
41 | #include "mi.h" | |||||
42 | ||||||
43 | #define TOUCH_HISTORY_SIZE100 100 | |||||
44 | ||||||
45 | /** | |||||
46 | * Some documentation about touch points: | |||||
47 | * The driver submits touch events with it's own (unique) touch point ID. | |||||
48 | * The driver may re-use those IDs, the DDX doesn't care. It just passes on | |||||
49 | * the data to the DIX. In the server, the driver's ID is referred to as the | |||||
50 | * DDX id anyway. | |||||
51 | * | |||||
52 | * On a TouchBegin, we create a DDXTouchPointInfo that contains the DDX id | |||||
53 | * and the client ID that this touchpoint will have. The client ID is the | |||||
54 | * one visible on the protocol. | |||||
55 | * | |||||
56 | * TouchUpdate and TouchEnd will only be processed if there is an active | |||||
57 | * touchpoint with the same DDX id. | |||||
58 | * | |||||
59 | * The DDXTouchPointInfo struct is stored dev->last.touches. When the event | |||||
60 | * being processed, it becomes a TouchPointInfo in dev->touch-touches which | |||||
61 | * contains amongst other things the sprite trace and delivery information. | |||||
62 | */ | |||||
63 | ||||||
64 | /** | |||||
65 | * Check which devices need a bigger touch event queue and grow their | |||||
66 | * last.touches by half it's current size. | |||||
67 | * | |||||
68 | * @param client Always the serverClient | |||||
69 | * @param closure Always NULL | |||||
70 | * | |||||
71 | * @return Always True. If we fail to grow we probably will topple over soon | |||||
72 | * anyway and re-executing this won't help. | |||||
73 | */ | |||||
74 | ||||||
75 | static Bool | |||||
76 | TouchResizeQueue(DeviceIntPtr dev) | |||||
77 | { | |||||
78 | DDXTouchPointInfoPtr tmp; | |||||
79 | size_t size; | |||||
80 | ||||||
81 | /* Grow sufficiently so we don't need to do it often */ | |||||
82 | size = dev->last.num_touches + dev->last.num_touches / 2 + 1; | |||||
83 | ||||||
84 | tmp = reallocarrayxreallocarray(dev->last.touches, size, sizeof(*dev->last.touches)); | |||||
85 | if (tmp) { | |||||
86 | int j; | |||||
87 | ||||||
88 | dev->last.touches = tmp; | |||||
89 | for (j = dev->last.num_touches; j < size; j++) | |||||
90 | TouchInitDDXTouchPoint(dev, &dev->last.touches[j]); | |||||
91 | dev->last.num_touches = size; | |||||
92 | return TRUE1; | |||||
93 | } | |||||
94 | return FALSE0; | |||||
95 | } | |||||
96 | ||||||
97 | /** | |||||
98 | * Given the DDX-facing ID (which is _not_ DeviceEvent::detail.touch), find the | |||||
99 | * associated DDXTouchPointInfoRec. | |||||
100 | * | |||||
101 | * @param dev The device to create the touch point for | |||||
102 | * @param ddx_id Touch id assigned by the driver/ddx | |||||
103 | * @param create Create the touchpoint if it cannot be found | |||||
104 | */ | |||||
105 | DDXTouchPointInfoPtr | |||||
106 | TouchFindByDDXID(DeviceIntPtr dev, uint32_t ddx_id, Bool create) | |||||
107 | { | |||||
108 | DDXTouchPointInfoPtr ti; | |||||
109 | int i; | |||||
110 | ||||||
111 | if (!dev->touch) | |||||
112 | return NULL((void*)0); | |||||
113 | ||||||
114 | for (i = 0; i < dev->last.num_touches; i++) { | |||||
115 | ti = &dev->last.touches[i]; | |||||
116 | if (ti->active && ti->ddx_id == ddx_id) | |||||
117 | return ti; | |||||
118 | } | |||||
119 | ||||||
120 | return create ? TouchBeginDDXTouch(dev, ddx_id) : NULL((void*)0); | |||||
121 | } | |||||
122 | ||||||
123 | /** | |||||
124 | * Given a unique DDX ID for a touchpoint, create a touchpoint record and | |||||
125 | * return it. | |||||
126 | * | |||||
127 | * If no other touch points are active, mark new touchpoint for pointer | |||||
128 | * emulation. | |||||
129 | * | |||||
130 | * Returns NULL on failure (i.e. if another touch with that ID is already active, | |||||
131 | * allocation failure). | |||||
132 | */ | |||||
133 | DDXTouchPointInfoPtr | |||||
134 | TouchBeginDDXTouch(DeviceIntPtr dev, uint32_t ddx_id) | |||||
135 | { | |||||
136 | static int next_client_id = 1; | |||||
137 | int i; | |||||
138 | TouchClassPtr t = dev->touch; | |||||
139 | DDXTouchPointInfoPtr ti = NULL((void*)0); | |||||
140 | Bool emulate_pointer; | |||||
141 | ||||||
142 | if (!t) | |||||
143 | return NULL((void*)0); | |||||
144 | ||||||
145 | emulate_pointer = (t->mode == XIDirectTouch1); | |||||
146 | ||||||
147 | /* Look for another active touchpoint with the same DDX ID. DDX | |||||
148 | * touchpoints must be unique. */ | |||||
149 | if (TouchFindByDDXID(dev, ddx_id, FALSE0)) | |||||
150 | return NULL((void*)0); | |||||
151 | ||||||
152 | for (;;) { | |||||
153 | for (i = 0; i < dev->last.num_touches; i++) { | |||||
154 | /* Only emulate pointer events on the first touch */ | |||||
155 | if (dev->last.touches[i].active) | |||||
156 | emulate_pointer = FALSE0; | |||||
157 | else if (!ti) /* ti is now first non-active touch rec */ | |||||
158 | ti = &dev->last.touches[i]; | |||||
159 | ||||||
160 | if (!emulate_pointer && ti) | |||||
161 | break; | |||||
162 | } | |||||
163 | if (ti) | |||||
164 | break; | |||||
165 | if (!TouchResizeQueue(dev)) | |||||
166 | break; | |||||
167 | } | |||||
168 | ||||||
169 | if (ti) { | |||||
170 | int client_id; | |||||
171 | ||||||
172 | ti->active = TRUE1; | |||||
173 | ti->ddx_id = ddx_id; | |||||
174 | client_id = next_client_id; | |||||
175 | next_client_id++; | |||||
176 | if (next_client_id == 0) | |||||
177 | next_client_id = 1; | |||||
178 | ti->client_id = client_id; | |||||
179 | ti->emulate_pointer = emulate_pointer; | |||||
180 | } | |||||
181 | return ti; | |||||
182 | } | |||||
183 | ||||||
184 | void | |||||
185 | TouchEndDDXTouch(DeviceIntPtr dev, DDXTouchPointInfoPtr ti) | |||||
186 | { | |||||
187 | TouchClassPtr t = dev->touch; | |||||
188 | ||||||
189 | if (!t) | |||||
190 | return; | |||||
191 | ||||||
192 | ti->active = FALSE0; | |||||
193 | } | |||||
194 | ||||||
195 | void | |||||
196 | TouchInitDDXTouchPoint(DeviceIntPtr dev, DDXTouchPointInfoPtr ddxtouch) | |||||
197 | { | |||||
198 | memset(ddxtouch, 0, sizeof(*ddxtouch))__builtin___memset_chk (ddxtouch, 0, sizeof(*ddxtouch), __builtin_object_size (ddxtouch, 0)); | |||||
199 | ddxtouch->valuators = valuator_mask_new(dev->valuator->numAxes); | |||||
200 | } | |||||
201 | ||||||
202 | Bool | |||||
203 | TouchInitTouchPoint(TouchClassPtr t, ValuatorClassPtr v, int index) | |||||
204 | { | |||||
205 | TouchPointInfoPtr ti; | |||||
206 | ||||||
207 | if (index >= t->num_touches) | |||||
208 | return FALSE0; | |||||
209 | ti = &t->touches[index]; | |||||
210 | ||||||
211 | memset(ti, 0, sizeof(*ti))__builtin___memset_chk (ti, 0, sizeof(*ti), __builtin_object_size (ti, 0)); | |||||
212 | ||||||
213 | ti->valuators = valuator_mask_new(v->numAxes); | |||||
214 | if (!ti->valuators) | |||||
215 | return FALSE0; | |||||
216 | ||||||
217 | ti->sprite.spriteTrace = calloc(32, sizeof(*ti->sprite.spriteTrace)); | |||||
218 | if (!ti->sprite.spriteTrace) { | |||||
219 | valuator_mask_free(&ti->valuators); | |||||
220 | return FALSE0; | |||||
221 | } | |||||
222 | ti->sprite.spriteTraceSize = 32; | |||||
223 | ti->sprite.spriteTrace[0] = screenInfo.screens[0]->root; | |||||
224 | ti->sprite.hot.pScreen = screenInfo.screens[0]; | |||||
225 | ti->sprite.hotPhys.pScreen = screenInfo.screens[0]; | |||||
226 | ||||||
227 | ti->client_id = -1; | |||||
228 | ||||||
229 | return TRUE1; | |||||
230 | } | |||||
231 | ||||||
232 | void | |||||
233 | TouchFreeTouchPoint(DeviceIntPtr device, int index) | |||||
234 | { | |||||
235 | TouchPointInfoPtr ti; | |||||
236 | int i; | |||||
237 | ||||||
238 | if (!device->touch || index >= device->touch->num_touches) | |||||
239 | return; | |||||
240 | ti = &device->touch->touches[index]; | |||||
241 | ||||||
242 | if (ti->active) | |||||
243 | TouchEndTouch(device, ti); | |||||
244 | ||||||
245 | for (i = 0; i < ti->num_listeners; i++) | |||||
246 | TouchRemoveListener(ti, ti->listeners[0].listener); | |||||
247 | ||||||
248 | valuator_mask_free(&ti->valuators); | |||||
249 | free(ti->sprite.spriteTrace); | |||||
250 | ti->sprite.spriteTrace = NULL((void*)0); | |||||
251 | free(ti->listeners); | |||||
252 | ti->listeners = NULL((void*)0); | |||||
253 | free(ti->history); | |||||
254 | ti->history = NULL((void*)0); | |||||
255 | ti->history_size = 0; | |||||
256 | ti->history_elements = 0; | |||||
257 | } | |||||
258 | ||||||
259 | /** | |||||
260 | * Given a client-facing ID (e.g. DeviceEvent::detail.touch), find the | |||||
261 | * associated TouchPointInfoRec. | |||||
262 | */ | |||||
263 | TouchPointInfoPtr | |||||
264 | TouchFindByClientID(DeviceIntPtr dev, uint32_t client_id) | |||||
265 | { | |||||
266 | TouchClassPtr t = dev->touch; | |||||
267 | TouchPointInfoPtr ti; | |||||
268 | int i; | |||||
269 | ||||||
270 | if (!t) | |||||
271 | return NULL((void*)0); | |||||
272 | ||||||
273 | for (i = 0; i < t->num_touches; i++) { | |||||
274 | ti = &t->touches[i]; | |||||
275 | if (ti->active && ti->client_id == client_id) | |||||
276 | return ti; | |||||
277 | } | |||||
278 | ||||||
279 | return NULL((void*)0); | |||||
280 | } | |||||
281 | ||||||
282 | /** | |||||
283 | * Given a unique ID for a touchpoint, create a touchpoint record in the | |||||
284 | * server. | |||||
285 | * | |||||
286 | * Returns NULL on failure (i.e. if another touch with that ID is already active, | |||||
287 | * allocation failure). | |||||
288 | */ | |||||
289 | TouchPointInfoPtr | |||||
290 | TouchBeginTouch(DeviceIntPtr dev, int sourceid, uint32_t touchid, | |||||
291 | Bool emulate_pointer) | |||||
292 | { | |||||
293 | int i; | |||||
294 | TouchClassPtr t = dev->touch; | |||||
295 | TouchPointInfoPtr ti; | |||||
296 | void *tmp; | |||||
297 | ||||||
298 | if (!t) | |||||
299 | return NULL((void*)0); | |||||
300 | ||||||
301 | /* Look for another active touchpoint with the same client ID. It's | |||||
302 | * technically legitimate for a touchpoint to still exist with the same | |||||
303 | * ID but only once the 32 bits wrap over and you've used up 4 billion | |||||
304 | * touch ids without lifting that one finger off once. In which case | |||||
305 | * you deserve a medal or something, but not error handling code. */ | |||||
306 | if (TouchFindByClientID(dev, touchid)) | |||||
307 | return NULL((void*)0); | |||||
308 | ||||||
309 | try_find_touch: | |||||
310 | for (i = 0; i < t->num_touches; i++) { | |||||
311 | ti = &t->touches[i]; | |||||
312 | if (!ti->active) { | |||||
313 | ti->active = TRUE1; | |||||
314 | ti->client_id = touchid; | |||||
315 | ti->sourceid = sourceid; | |||||
316 | ti->emulate_pointer = emulate_pointer; | |||||
317 | return ti; | |||||
318 | } | |||||
319 | } | |||||
320 | ||||||
321 | /* If we get here, then we've run out of touches: enlarge dev->touch and | |||||
322 | * try again. */ | |||||
323 | tmp = reallocarrayxreallocarray(t->touches, t->num_touches + 1, sizeof(*ti)); | |||||
324 | if (tmp) { | |||||
325 | t->touches = tmp; | |||||
326 | t->num_touches++; | |||||
327 | if (TouchInitTouchPoint(t, dev->valuator, t->num_touches - 1)) | |||||
328 | goto try_find_touch; | |||||
329 | } | |||||
330 | ||||||
331 | return NULL((void*)0); | |||||
332 | } | |||||
333 | ||||||
334 | /** | |||||
335 | * Releases a touchpoint for use: this must only be called after all events | |||||
336 | * related to that touchpoint have been sent and finalised. Called from | |||||
337 | * ProcessTouchEvent and friends. Not by you. | |||||
338 | */ | |||||
339 | void | |||||
340 | TouchEndTouch(DeviceIntPtr dev, TouchPointInfoPtr ti) | |||||
341 | { | |||||
342 | int i; | |||||
343 | ||||||
344 | if (ti->emulate_pointer) { | |||||
345 | GrabPtr grab; | |||||
346 | ||||||
347 | if ((grab = dev->deviceGrab.grab)) { | |||||
348 | if (dev->deviceGrab.fromPassiveGrab && | |||||
349 | !dev->button->buttonsDown && | |||||
350 | !dev->touch->buttonsDown && GrabIsPointerGrab(grab)) | |||||
351 | (*dev->deviceGrab.DeactivateGrab) (dev); | |||||
352 | } | |||||
353 | } | |||||
354 | ||||||
355 | for (i = 0; i < ti->num_listeners; i++) | |||||
356 | TouchRemoveListener(ti, ti->listeners[0].listener); | |||||
357 | ||||||
358 | ti->active = FALSE0; | |||||
359 | ti->pending_finish = FALSE0; | |||||
360 | ti->sprite.spriteTraceGood = 0; | |||||
361 | free(ti->listeners); | |||||
362 | ti->listeners = NULL((void*)0); | |||||
363 | ti->num_listeners = 0; | |||||
364 | ti->num_grabs = 0; | |||||
365 | ti->client_id = 0; | |||||
366 | ||||||
367 | TouchEventHistoryFree(ti); | |||||
368 | ||||||
369 | valuator_mask_zero(ti->valuators); | |||||
370 | } | |||||
371 | ||||||
372 | /** | |||||
373 | * Allocate the event history for this touch pointer. Calling this on a | |||||
374 | * touchpoint that already has an event history does nothing but counts as | |||||
375 | * as success. | |||||
376 | * | |||||
377 | * @return TRUE on success, FALSE on allocation errors | |||||
378 | */ | |||||
379 | Bool | |||||
380 | TouchEventHistoryAllocate(TouchPointInfoPtr ti) | |||||
381 | { | |||||
382 | if (ti->history) | |||||
383 | return TRUE1; | |||||
384 | ||||||
385 | ti->history = calloc(TOUCH_HISTORY_SIZE100, sizeof(*ti->history)); | |||||
386 | ti->history_elements = 0; | |||||
387 | if (ti->history) | |||||
388 | ti->history_size = TOUCH_HISTORY_SIZE100; | |||||
389 | return ti->history != NULL((void*)0); | |||||
390 | } | |||||
391 | ||||||
392 | void | |||||
393 | TouchEventHistoryFree(TouchPointInfoPtr ti) | |||||
394 | { | |||||
395 | free(ti->history); | |||||
396 | ti->history = NULL((void*)0); | |||||
397 | ti->history_size = 0; | |||||
398 | ti->history_elements = 0; | |||||
399 | } | |||||
400 | ||||||
401 | /** | |||||
402 | * Store the given event on the event history (if one exists) | |||||
403 | * A touch event history consists of one TouchBegin and several TouchUpdate | |||||
404 | * events (if applicable) but no TouchEnd event. | |||||
405 | * If more than one TouchBegin is pushed onto the stack, the push is | |||||
406 | * ignored, calling this function multiple times for the TouchBegin is | |||||
407 | * valid. | |||||
408 | */ | |||||
409 | void | |||||
410 | TouchEventHistoryPush(TouchPointInfoPtr ti, const DeviceEvent *ev) | |||||
411 | { | |||||
412 | if (!ti->history) | |||||
413 | return; | |||||
414 | ||||||
415 | switch (ev->type) { | |||||
416 | case ET_TouchBegin: | |||||
417 | /* don't store the same touchbegin twice */ | |||||
418 | if (ti->history_elements > 0) | |||||
419 | return; | |||||
420 | break; | |||||
421 | case ET_TouchUpdate: | |||||
422 | break; | |||||
423 | case ET_TouchEnd: | |||||
424 | return; /* no TouchEnd events in the history */ | |||||
425 | default: | |||||
426 | return; | |||||
427 | } | |||||
428 | ||||||
429 | /* We only store real events in the history */ | |||||
430 | if (ev->flags & (TOUCH_CLIENT_ID(1 << 3) | TOUCH_REPLAYING(1 << 4))) | |||||
431 | return; | |||||
432 | ||||||
433 | ti->history[ti->history_elements++] = *ev; | |||||
434 | /* FIXME: proper overflow fixes */ | |||||
435 | if (ti->history_elements > ti->history_size - 1) { | |||||
436 | ti->history_elements = ti->history_size - 1; | |||||
437 | DebugF("source device %d: history size %zu overflowing for touch %u\n", | |||||
438 | ti->sourceid, ti->history_size, ti->client_id); | |||||
439 | } | |||||
440 | } | |||||
441 | ||||||
442 | void | |||||
443 | TouchEventHistoryReplay(TouchPointInfoPtr ti, DeviceIntPtr dev, XID resource) | |||||
444 | { | |||||
445 | int i; | |||||
446 | ||||||
447 | if (!ti->history) | |||||
448 | return; | |||||
449 | ||||||
450 | TouchDeliverDeviceClassesChangedEvent(ti, ti->history[0].time, resource); | |||||
451 | ||||||
452 | for (i = 0; i < ti->history_elements; i++) { | |||||
453 | DeviceEvent *ev = &ti->history[i]; | |||||
454 | ||||||
455 | ev->flags |= TOUCH_REPLAYING(1 << 4); | |||||
456 | ev->resource = resource; | |||||
457 | /* FIXME: | |||||
458 | We're replaying ti->history which contains the TouchBegin + | |||||
459 | all TouchUpdates for ti. This needs to be passed on to the next | |||||
460 | listener. If that is a touch listener, everything is dandy. | |||||
461 | If the TouchBegin however triggers a sync passive grab, the | |||||
462 | TouchUpdate events must be sent to EnqueueEvent so the events end | |||||
463 | up in syncEvents.pending to be forwarded correctly in a | |||||
464 | subsequent ComputeFreeze(). | |||||
465 | ||||||
466 | However, if we just send them to EnqueueEvent the sync'ing device | |||||
467 | prevents handling of touch events for ownership listeners who | |||||
468 | want the events right here, right now. | |||||
469 | */ | |||||
470 | dev->public.processInputProc((InternalEvent*)ev, dev); | |||||
471 | } | |||||
472 | } | |||||
473 | ||||||
474 | void | |||||
475 | TouchDeliverDeviceClassesChangedEvent(TouchPointInfoPtr ti, Time time, | |||||
476 | XID resource) | |||||
477 | { | |||||
478 | DeviceIntPtr dev; | |||||
479 | int num_events = 0; | |||||
480 | InternalEvent dcce; | |||||
481 | ||||||
482 | dixLookupDevice(&dev, ti->sourceid, serverClient, DixWriteAccess(1<<1)); | |||||
483 | ||||||
484 | if (!dev) | |||||
485 | return; | |||||
486 | ||||||
487 | /* UpdateFromMaster generates at most one event */ | |||||
488 | UpdateFromMaster(&dcce, dev, DEVCHANGE_POINTER_EVENT0x4, &num_events); | |||||
489 | BUG_WARN(num_events > 1)do { if (num_events > 1) { ErrorFSigSafe("BUG: triggered 'if (" "num_events > 1" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n" , "touch.c", 489, __func__); if (0) ErrorFSigSafe(((void*)0)) ; xorg_backtrace(); } } while(0); | |||||
490 | ||||||
491 | if (num_events) { | |||||
492 | dcce.any.time = time; | |||||
493 | /* FIXME: This doesn't do anything */ | |||||
494 | dev->public.processInputProc(&dcce, dev); | |||||
495 | } | |||||
496 | } | |||||
497 | ||||||
498 | Bool | |||||
499 | TouchBuildDependentSpriteTrace(DeviceIntPtr dev, SpritePtr sprite) | |||||
500 | { | |||||
501 | int i; | |||||
502 | TouchClassPtr t = dev->touch; | |||||
503 | WindowPtr *trace; | |||||
504 | SpritePtr srcsprite; | |||||
505 | ||||||
506 | /* All touches should have the same sprite trace, so find and reuse an | |||||
507 | * existing touch's sprite if possible, else use the device's sprite. */ | |||||
508 | for (i = 0; i < t->num_touches; i++) | |||||
509 | if (!t->touches[i].pending_finish && | |||||
510 | t->touches[i].sprite.spriteTraceGood > 0) | |||||
511 | break; | |||||
512 | if (i < t->num_touches) | |||||
513 | srcsprite = &t->touches[i].sprite; | |||||
514 | else if (dev->spriteInfo->sprite) | |||||
515 | srcsprite = dev->spriteInfo->sprite; | |||||
516 | else | |||||
517 | return FALSE0; | |||||
518 | ||||||
519 | if (srcsprite->spriteTraceGood > sprite->spriteTraceSize) { | |||||
520 | trace = reallocarrayxreallocarray(sprite->spriteTrace, | |||||
521 | srcsprite->spriteTraceSize, sizeof(*trace)); | |||||
522 | if (!trace) { | |||||
523 | sprite->spriteTraceGood = 0; | |||||
524 | return FALSE0; | |||||
525 | } | |||||
526 | sprite->spriteTrace = trace; | |||||
527 | sprite->spriteTraceSize = srcsprite->spriteTraceGood; | |||||
528 | } | |||||
529 | memcpy(sprite->spriteTrace, srcsprite->spriteTrace,__builtin___memcpy_chk (sprite->spriteTrace, srcsprite-> spriteTrace, srcsprite->spriteTraceGood * sizeof(*trace), __builtin_object_size (sprite->spriteTrace, 0)) | |||||
530 | srcsprite->spriteTraceGood * sizeof(*trace))__builtin___memcpy_chk (sprite->spriteTrace, srcsprite-> spriteTrace, srcsprite->spriteTraceGood * sizeof(*trace), __builtin_object_size (sprite->spriteTrace, 0)); | |||||
531 | sprite->spriteTraceGood = srcsprite->spriteTraceGood; | |||||
532 | ||||||
533 | return TRUE1; | |||||
534 | } | |||||
535 | ||||||
536 | /** | |||||
537 | * Ensure a window trace is present in ti->sprite, constructing one for | |||||
538 | * TouchBegin events. | |||||
539 | */ | |||||
540 | Bool | |||||
541 | TouchBuildSprite(DeviceIntPtr sourcedev, TouchPointInfoPtr ti, | |||||
542 | InternalEvent *ev) | |||||
543 | { | |||||
544 | TouchClassPtr t = sourcedev->touch; | |||||
545 | SpritePtr sprite = &ti->sprite; | |||||
546 | ||||||
547 | if (t->mode == XIDirectTouch1) { | |||||
548 | /* Focus immediately under the touchpoint in direct touch mode. | |||||
549 | * XXX: Do we need to handle crossing screens here? */ | |||||
550 | sprite->spriteTrace[0] = | |||||
551 | sourcedev->spriteInfo->sprite->hotPhys.pScreen->root; | |||||
552 | XYToWindow(sprite, ev->device_event.root_x, ev->device_event.root_y); | |||||
553 | } | |||||
554 | else if (!TouchBuildDependentSpriteTrace(sourcedev, sprite)) | |||||
555 | return FALSE0; | |||||
556 | ||||||
557 | if (sprite->spriteTraceGood <= 0) | |||||
558 | return FALSE0; | |||||
559 | ||||||
560 | /* Mark which grabs/event selections we're delivering to: max one grab per | |||||
561 | * window plus the bottom-most event selection, plus any active grab. */ | |||||
562 | ti->listeners = calloc(sprite->spriteTraceGood + 2, sizeof(*ti->listeners)); | |||||
563 | if (!ti->listeners) { | |||||
564 | sprite->spriteTraceGood = 0; | |||||
565 | return FALSE0; | |||||
566 | } | |||||
567 | ti->num_listeners = 0; | |||||
568 | ||||||
569 | return TRUE1; | |||||
570 | } | |||||
571 | ||||||
572 | /** | |||||
573 | * Copy the touch event into the pointer_event, switching the required | |||||
574 | * fields to make it a correct pointer event. | |||||
575 | * | |||||
576 | * @param event The original touch event | |||||
577 | * @param[in] motion_event The respective motion event | |||||
578 | * @param[in] button_event The respective button event (if any) | |||||
579 | * | |||||
580 | * @returns The number of converted events. | |||||
581 | * @retval 0 An error occured | |||||
582 | * @retval 1 only the motion event is valid | |||||
583 | * @retval 2 motion and button event are valid | |||||
584 | */ | |||||
585 | int | |||||
586 | TouchConvertToPointerEvent(const InternalEvent *event, | |||||
587 | InternalEvent *motion_event, | |||||
588 | InternalEvent *button_event) | |||||
589 | { | |||||
590 | int ptrtype; | |||||
591 | int nevents = 0; | |||||
592 | ||||||
593 | BUG_RETURN_VAL(!event, 0)do { if (!event) { do { if (!event) { ErrorFSigSafe("BUG: triggered 'if (" "!event" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c" , 593, __func__); if (0) ErrorFSigSafe(((void*)0)); xorg_backtrace (); } } while(0); return (0); } } while(0); | |||||
594 | BUG_RETURN_VAL(!motion_event, 0)do { if (!motion_event) { do { if (!motion_event) { ErrorFSigSafe ("BUG: triggered 'if (" "!motion_event" ")'\n"); ErrorFSigSafe ("BUG: %s:%u in %s()\n", "touch.c", 594, __func__); if (0) ErrorFSigSafe (((void*)0)); xorg_backtrace(); } } while(0); return (0); } } while(0); | |||||
595 | ||||||
596 | switch (event->any.type) { | |||||
597 | case ET_TouchUpdate: | |||||
598 | nevents = 1; | |||||
599 | break; | |||||
600 | case ET_TouchBegin: | |||||
601 | nevents = 2; /* motion + press */ | |||||
602 | ptrtype = ET_ButtonPress; | |||||
603 | break; | |||||
604 | case ET_TouchEnd: | |||||
605 | nevents = 2; /* motion + release */ | |||||
606 | ptrtype = ET_ButtonRelease; | |||||
607 | break; | |||||
608 | default: | |||||
609 | BUG_WARN_MSG(1, "Invalid event type %d\n", event->any.type)do { if (1) { ErrorFSigSafe("BUG: triggered 'if (" "1" ")'\n" ); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c", 609, __func__ ); if (1) ErrorFSigSafe("Invalid event type %d\n", event-> any.type); xorg_backtrace(); } } while(0); | |||||
610 | return 0; | |||||
611 | } | |||||
612 | ||||||
613 | BUG_WARN_MSG(!(event->device_event.flags & TOUCH_POINTER_EMULATED),do { if (!(event->device_event.flags & (1 << 5)) ) { ErrorFSigSafe("BUG: triggered 'if (" "!(event->device_event.flags & (1 << 5))" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c", 614 , __func__); if (1) ErrorFSigSafe("Non-emulating touch event\n" ); xorg_backtrace(); } } while(0) | |||||
614 | "Non-emulating touch event\n")do { if (!(event->device_event.flags & (1 << 5)) ) { ErrorFSigSafe("BUG: triggered 'if (" "!(event->device_event.flags & (1 << 5))" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c", 614 , __func__); if (1) ErrorFSigSafe("Non-emulating touch event\n" ); xorg_backtrace(); } } while(0); | |||||
615 | ||||||
616 | motion_event->device_event = event->device_event; | |||||
617 | motion_event->any.type = ET_Motion; | |||||
618 | motion_event->device_event.detail.button = 0; | |||||
619 | motion_event->device_event.flags = XIPointerEmulated(1 << 16); | |||||
620 | ||||||
621 | if (nevents > 1) { | |||||
622 | BUG_RETURN_VAL(!button_event, 0)do { if (!button_event) { do { if (!button_event) { ErrorFSigSafe ("BUG: triggered 'if (" "!button_event" ")'\n"); ErrorFSigSafe ("BUG: %s:%u in %s()\n", "touch.c", 622, __func__); if (0) ErrorFSigSafe (((void*)0)); xorg_backtrace(); } } while(0); return (0); } } while(0); | |||||
623 | button_event->device_event = event->device_event; | |||||
624 | button_event->any.type = ptrtype; | |||||
625 | button_event->device_event.flags = XIPointerEmulated(1 << 16); | |||||
626 | /* detail is already correct */ | |||||
627 | } | |||||
628 | ||||||
629 | return nevents; | |||||
630 | } | |||||
631 | ||||||
632 | /** | |||||
633 | * Return the corresponding pointer emulation internal event type for the given | |||||
634 | * touch event or 0 if no such event type exists. | |||||
635 | */ | |||||
636 | int | |||||
637 | TouchGetPointerEventType(const InternalEvent *event) | |||||
638 | { | |||||
639 | int type = 0; | |||||
640 | ||||||
641 | switch (event->any.type) { | |||||
642 | case ET_TouchBegin: | |||||
643 | type = ET_ButtonPress; | |||||
644 | break; | |||||
645 | case ET_TouchUpdate: | |||||
646 | type = ET_Motion; | |||||
647 | break; | |||||
648 | case ET_TouchEnd: | |||||
649 | type = ET_ButtonRelease; | |||||
650 | break; | |||||
651 | default: | |||||
652 | break; | |||||
653 | } | |||||
654 | return type; | |||||
655 | } | |||||
656 | ||||||
657 | /** | |||||
658 | * @returns TRUE if the specified grab or selection is the current owner of | |||||
659 | * the touch sequence. | |||||
660 | */ | |||||
661 | Bool | |||||
662 | TouchResourceIsOwner(TouchPointInfoPtr ti, XID resource) | |||||
663 | { | |||||
664 | return (ti->listeners[0].listener == resource); | |||||
665 | } | |||||
666 | ||||||
667 | /** | |||||
668 | * Add the resource to this touch's listeners. | |||||
669 | */ | |||||
670 | void | |||||
671 | TouchAddListener(TouchPointInfoPtr ti, XID resource, int resource_type, | |||||
672 | enum InputLevel level, enum TouchListenerType type, | |||||
673 | enum TouchListenerState state, WindowPtr window, | |||||
674 | const GrabPtr grab) | |||||
675 | { | |||||
676 | GrabPtr g = NULL((void*)0); | |||||
677 | ||||||
678 | /* We need a copy of the grab, not the grab itself since that may be | |||||
679 | * deleted by a UngrabButton request and leaves us with a dangling | |||||
680 | * pointer */ | |||||
681 | if (grab) | |||||
682 | g = AllocGrab(grab); | |||||
683 | ||||||
684 | ti->listeners[ti->num_listeners].listener = resource; | |||||
685 | ti->listeners[ti->num_listeners].resource_type = resource_type; | |||||
686 | ti->listeners[ti->num_listeners].level = level; | |||||
687 | ti->listeners[ti->num_listeners].state = state; | |||||
688 | ti->listeners[ti->num_listeners].type = type; | |||||
689 | ti->listeners[ti->num_listeners].window = window; | |||||
690 | ti->listeners[ti->num_listeners].grab = g; | |||||
691 | if (grab) | |||||
692 | ti->num_grabs++; | |||||
693 | ti->num_listeners++; | |||||
694 | } | |||||
695 | ||||||
696 | /** | |||||
697 | * Remove the resource from this touch's listeners. | |||||
698 | * | |||||
699 | * @return TRUE if the resource was removed, FALSE if the resource was not | |||||
700 | * in the list | |||||
701 | */ | |||||
702 | Bool | |||||
703 | TouchRemoveListener(TouchPointInfoPtr ti, XID resource) | |||||
704 | { | |||||
705 | int i; | |||||
706 | ||||||
707 | for (i = 0; i < ti->num_listeners; i++) { | |||||
708 | int j; | |||||
709 | TouchListener *listener = &ti->listeners[i]; | |||||
710 | ||||||
711 | if (listener->listener != resource) | |||||
712 | continue; | |||||
713 | ||||||
714 | if (listener->grab) { | |||||
715 | FreeGrab(listener->grab); | |||||
716 | listener->grab = NULL((void*)0); | |||||
717 | ti->num_grabs--; | |||||
718 | } | |||||
719 | ||||||
720 | for (j = i; j < ti->num_listeners - 1; j++) | |||||
721 | ti->listeners[j] = ti->listeners[j + 1]; | |||||
722 | ti->num_listeners--; | |||||
723 | ti->listeners[ti->num_listeners].listener = 0; | |||||
724 | ti->listeners[ti->num_listeners].state = LISTENER_AWAITING_BEGIN; | |||||
725 | ||||||
726 | return TRUE1; | |||||
727 | } | |||||
728 | return FALSE0; | |||||
729 | } | |||||
730 | ||||||
731 | static void | |||||
732 | TouchAddGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, | |||||
733 | InternalEvent *ev, GrabPtr grab) | |||||
734 | { | |||||
735 | enum TouchListenerType type = LISTENER_GRAB; | |||||
736 | ||||||
737 | /* FIXME: owner_events */ | |||||
738 | ||||||
739 | if (grab->grabtype == XI2) { | |||||
740 | if (!xi2mask_isset(grab->xi2mask, dev, XI_TouchOwnership21)) | |||||
741 | TouchEventHistoryAllocate(ti); | |||||
742 | if (!xi2mask_isset(grab->xi2mask, dev, XI_TouchBegin18)) | |||||
743 | type = LISTENER_POINTER_GRAB; | |||||
744 | } | |||||
745 | else if (grab->grabtype == XI || grab->grabtype == CORE) { | |||||
746 | TouchEventHistoryAllocate(ti); | |||||
747 | type = LISTENER_POINTER_GRAB; | |||||
748 | } | |||||
749 | ||||||
750 | /* grab listeners are always RT_NONE since we keep the grab pointer */ | |||||
751 | TouchAddListener(ti, grab->resource, RT_NONE((RESTYPE)0), grab->grabtype, | |||||
752 | type, LISTENER_AWAITING_BEGIN, grab->window, grab); | |||||
753 | } | |||||
754 | ||||||
755 | /** | |||||
756 | * Add one listener if there is a grab on the given window. | |||||
757 | */ | |||||
758 | static void | |||||
759 | TouchAddPassiveGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, | |||||
760 | WindowPtr win, InternalEvent *ev) | |||||
761 | { | |||||
762 | GrabPtr grab; | |||||
763 | Bool check_core = IsMaster(dev) && ti->emulate_pointer; | |||||
764 | ||||||
765 | /* FIXME: make CheckPassiveGrabsOnWindow only trigger on TouchBegin */ | |||||
766 | grab = CheckPassiveGrabsOnWindow(win, dev, ev, check_core, FALSE0); | |||||
767 | if (!grab) | |||||
768 | return; | |||||
769 | ||||||
770 | TouchAddGrabListener(dev, ti, ev, grab); | |||||
771 | } | |||||
772 | ||||||
773 | static Bool | |||||
774 | TouchAddRegularListener(DeviceIntPtr dev, TouchPointInfoPtr ti, | |||||
775 | WindowPtr win, InternalEvent *ev) | |||||
776 | { | |||||
777 | InputClients *iclients = NULL((void*)0); | |||||
778 | OtherInputMasks *inputMasks = NULL((void*)0); | |||||
779 | uint16_t evtype = 0; /* may be event type or emulated event type */ | |||||
780 | enum TouchListenerType type = LISTENER_REGULAR; | |||||
781 | int mask; | |||||
782 | ||||||
783 | evtype = GetXI2Type(ev->any.type); | |||||
784 | mask = EventIsDeliverable(dev, ev->any.type, win); | |||||
785 | if (!mask && !ti->emulate_pointer) | |||||
786 | return FALSE0; | |||||
787 | else if (!mask) { /* now try for pointer event */ | |||||
788 | mask = EventIsDeliverable(dev, TouchGetPointerEventType(ev), win); | |||||
789 | if (mask) { | |||||
790 | evtype = GetXI2Type(TouchGetPointerEventType(ev)); | |||||
791 | type = LISTENER_POINTER_REGULAR; | |||||
792 | } | |||||
793 | } | |||||
794 | if (!mask) | |||||
795 | return FALSE0; | |||||
796 | ||||||
797 | inputMasks = wOtherInputMasks(win)((win)->optional ? (win)->optional->inputMasks : ((void *)0)); | |||||
798 | ||||||
799 | if (mask & EVENT_XI2_MASK(1 << 3)) { | |||||
800 | nt_list_for_each_entry(iclients, inputMasks->inputClients, next)for (iclients = inputMasks->inputClients; iclients; iclients = (iclients)->next) { | |||||
| ||||||
801 | if (!xi2mask_isset(iclients->xi2mask, dev, evtype)) | |||||
802 | continue; | |||||
803 | ||||||
804 | if (!xi2mask_isset(iclients->xi2mask, dev, XI_TouchOwnership21)) | |||||
805 | TouchEventHistoryAllocate(ti); | |||||
806 | ||||||
807 | TouchAddListener(ti, iclients->resource, RT_INPUTCLIENT, XI2, | |||||
808 | type, LISTENER_AWAITING_BEGIN, win, NULL((void*)0)); | |||||
809 | return TRUE1; | |||||
810 | } | |||||
811 | } | |||||
812 | ||||||
813 | if (mask & EVENT_XI1_MASK(1 << 0)) { | |||||
814 | int xitype = GetXIType(TouchGetPointerEventType(ev)); | |||||
815 | Mask xi_filter = event_get_filter_from_type(dev, xitype); | |||||
816 | ||||||
817 | nt_list_for_each_entry(iclients, inputMasks->inputClients, next)for (iclients = inputMasks->inputClients; iclients; iclients = (iclients)->next) { | |||||
818 | if (!(iclients->mask[dev->id] & xi_filter)) | |||||
819 | continue; | |||||
820 | ||||||
821 | TouchEventHistoryAllocate(ti); | |||||
822 | TouchAddListener(ti, iclients->resource, RT_INPUTCLIENT, XI, | |||||
823 | LISTENER_POINTER_REGULAR, LISTENER_AWAITING_BEGIN, | |||||
824 | win, NULL((void*)0)); | |||||
825 | return TRUE1; | |||||
826 | } | |||||
827 | } | |||||
828 | ||||||
829 | if (mask & EVENT_CORE_MASK(1 << 1)) { | |||||
830 | int coretype = GetCoreType(TouchGetPointerEventType(ev)); | |||||
831 | Mask core_filter = event_get_filter_from_type(dev, coretype); | |||||
832 | OtherClients *oclients; | |||||
833 | ||||||
834 | /* window owner */ | |||||
835 | if (IsMaster(dev) && (win->eventMask & core_filter)) { | |||||
836 | TouchEventHistoryAllocate(ti); | |||||
837 | TouchAddListener(ti, win->drawable.id, RT_WINDOW((RESTYPE)1|((RESTYPE)1<<30)), CORE, | |||||
838 | LISTENER_POINTER_REGULAR, LISTENER_AWAITING_BEGIN, | |||||
839 | win, NULL((void*)0)); | |||||
840 | return TRUE1; | |||||
841 | } | |||||
842 | ||||||
843 | /* all others */ | |||||
844 | nt_list_for_each_entry(oclients, wOtherClients(win), next)for (oclients = ((win)->optional ? (win)->optional-> otherClients : ((void*)0)); oclients; oclients = (oclients)-> next) { | |||||
845 | if (!(oclients->mask & core_filter)) | |||||
846 | continue; | |||||
847 | ||||||
848 | TouchEventHistoryAllocate(ti); | |||||
849 | TouchAddListener(ti, oclients->resource, RT_OTHERCLIENT((RESTYPE)8|((RESTYPE)1<<29)), CORE, | |||||
850 | type, LISTENER_AWAITING_BEGIN, win, NULL((void*)0)); | |||||
851 | return TRUE1; | |||||
852 | } | |||||
853 | } | |||||
854 | ||||||
855 | return FALSE0; | |||||
856 | } | |||||
857 | ||||||
858 | static void | |||||
859 | TouchAddActiveGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, | |||||
860 | InternalEvent *ev, GrabPtr grab) | |||||
861 | { | |||||
862 | if (!ti->emulate_pointer && | |||||
863 | (grab->grabtype == CORE || grab->grabtype == XI)) | |||||
864 | return; | |||||
865 | ||||||
866 | if (!ti->emulate_pointer && | |||||
867 | grab->grabtype == XI2 && | |||||
868 | !xi2mask_isset(grab->xi2mask, dev, XI_TouchBegin18)) | |||||
869 | return; | |||||
870 | ||||||
871 | TouchAddGrabListener(dev, ti, ev, grab); | |||||
872 | } | |||||
873 | ||||||
874 | void | |||||
875 | TouchSetupListeners(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev) | |||||
876 | { | |||||
877 | int i; | |||||
878 | SpritePtr sprite = &ti->sprite; | |||||
879 | WindowPtr win; | |||||
880 | ||||||
881 | if (dev->deviceGrab.grab && !dev->deviceGrab.fromPassiveGrab) | |||||
882 | TouchAddActiveGrabListener(dev, ti, ev, dev->deviceGrab.grab); | |||||
883 | ||||||
884 | /* We set up an active touch listener for existing touches, but not any | |||||
885 | * passive grab or regular listeners. */ | |||||
886 | if (ev->any.type != ET_TouchBegin) | |||||
| ||||||
887 | return; | |||||
888 | ||||||
889 | /* First, find all grabbing clients from the root window down | |||||
890 | * to the deepest child window. */ | |||||
891 | for (i = 0; i < sprite->spriteTraceGood; i++) { | |||||
892 | win = sprite->spriteTrace[i]; | |||||
893 | TouchAddPassiveGrabListener(dev, ti, win, ev); | |||||
894 | } | |||||
895 | ||||||
896 | /* Find the first client with an applicable event selection, | |||||
897 | * going from deepest child window back up to the root window. */ | |||||
898 | for (i = sprite->spriteTraceGood - 1; i >= 0; i--) { | |||||
899 | Bool delivered; | |||||
900 | ||||||
901 | win = sprite->spriteTrace[i]; | |||||
902 | delivered = TouchAddRegularListener(dev, ti, win, ev); | |||||
903 | if (delivered) | |||||
904 | return; | |||||
905 | } | |||||
906 | } | |||||
907 | ||||||
908 | /** | |||||
909 | * Remove the touch pointer grab from the device. Called from | |||||
910 | * DeactivatePointerGrab() | |||||
911 | */ | |||||
912 | void | |||||
913 | TouchRemovePointerGrab(DeviceIntPtr dev) | |||||
914 | { | |||||
915 | TouchPointInfoPtr ti; | |||||
916 | GrabPtr grab; | |||||
917 | DeviceEvent *ev; | |||||
918 | ||||||
919 | if (!dev->touch) | |||||
920 | return; | |||||
921 | ||||||
922 | grab = dev->deviceGrab.grab; | |||||
923 | if (!grab) | |||||
924 | return; | |||||
925 | ||||||
926 | ev = dev->deviceGrab.sync.event; | |||||
927 | if (!IsTouchEvent((InternalEvent *) ev)) | |||||
928 | return; | |||||
929 | ||||||
930 | ti = TouchFindByClientID(dev, ev->touchid); | |||||
931 | if (!ti) | |||||
932 | return; | |||||
933 | ||||||
934 | /* FIXME: missing a bit of code here... */ | |||||
935 | } | |||||
936 | ||||||
937 | /* As touch grabs don't turn into active grabs with their own resources, we | |||||
938 | * need to walk all the touches and remove this grab from any delivery | |||||
939 | * lists. */ | |||||
940 | void | |||||
941 | TouchListenerGone(XID resource) | |||||
942 | { | |||||
943 | TouchPointInfoPtr ti; | |||||
944 | DeviceIntPtr dev; | |||||
945 | InternalEvent *events = InitEventList(GetMaximumEventsNum()); | |||||
946 | int i, j, k, nev; | |||||
947 | ||||||
948 | if (!events) | |||||
949 | FatalError("TouchListenerGone: couldn't allocate events\n"); | |||||
950 | ||||||
951 | for (dev = inputInfo.devices; dev; dev = dev->next) { | |||||
952 | if (!dev->touch) | |||||
953 | continue; | |||||
954 | ||||||
955 | for (i = 0; i < dev->touch->num_touches; i++) { | |||||
956 | ti = &dev->touch->touches[i]; | |||||
957 | if (!ti->active) | |||||
958 | continue; | |||||
959 | ||||||
960 | for (j = 0; j < ti->num_listeners; j++) { | |||||
961 | if (CLIENT_BITS(ti->listeners[j].listener)((ti->listeners[j].listener) & (((1 << ResourceClientBits ()) - 1) << (29 - ResourceClientBits()))) != resource) | |||||
962 | continue; | |||||
963 | ||||||
964 | nev = GetTouchOwnershipEvents(events, dev, ti, XIRejectTouch7, | |||||
965 | ti->listeners[j].listener, 0); | |||||
966 | for (k = 0; k < nev; k++) | |||||
967 | mieqProcessDeviceEvent(dev, events + k, NULL((void*)0)); | |||||
968 | ||||||
969 | break; | |||||
970 | } | |||||
971 | } | |||||
972 | } | |||||
973 | ||||||
974 | FreeEventList(events, GetMaximumEventsNum()); | |||||
975 | } | |||||
976 | ||||||
977 | int | |||||
978 | TouchListenerAcceptReject(DeviceIntPtr dev, TouchPointInfoPtr ti, int listener, | |||||
979 | int mode) | |||||
980 | { | |||||
981 | InternalEvent *events; | |||||
982 | int nev; | |||||
983 | int i; | |||||
984 | ||||||
985 | BUG_RETURN_VAL(listener < 0, BadMatch)do { if (listener < 0) { do { if (listener < 0) { ErrorFSigSafe ("BUG: triggered 'if (" "listener < 0" ")'\n"); ErrorFSigSafe ("BUG: %s:%u in %s()\n", "touch.c", 985, __func__); if (0) ErrorFSigSafe (((void*)0)); xorg_backtrace(); } } while(0); return (8); } } while(0); | |||||
986 | BUG_RETURN_VAL(listener >= ti->num_listeners, BadMatch)do { if (listener >= ti->num_listeners) { do { if (listener >= ti->num_listeners) { ErrorFSigSafe("BUG: triggered 'if (" "listener >= ti->num_listeners" ")'\n"); ErrorFSigSafe ("BUG: %s:%u in %s()\n", "touch.c", 986, __func__); if (0) ErrorFSigSafe (((void*)0)); xorg_backtrace(); } } while(0); return (8); } } while(0); | |||||
987 | ||||||
988 | if (listener > 0) { | |||||
989 | if (mode == XIRejectTouch7) | |||||
990 | TouchRejected(dev, ti, ti->listeners[listener].listener, NULL((void*)0)); | |||||
991 | else | |||||
992 | ti->listeners[listener].state = LISTENER_EARLY_ACCEPT; | |||||
993 | ||||||
994 | return Success0; | |||||
995 | } | |||||
996 | ||||||
997 | events = InitEventList(GetMaximumEventsNum()); | |||||
998 | BUG_RETURN_VAL_MSG(!events, BadAlloc, "Failed to allocate touch ownership events\n")do { if (!events) { do { if (!events) { ErrorFSigSafe("BUG: triggered 'if (" "!events" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c" , 998, __func__); if (1) ErrorFSigSafe("Failed to allocate touch ownership events\n" ); xorg_backtrace(); } } while(0); return (11); } } while(0); | |||||
999 | ||||||
1000 | nev = GetTouchOwnershipEvents(events, dev, ti, mode, | |||||
1001 | ti->listeners[0].listener, 0); | |||||
1002 | BUG_WARN_MSG(nev == 0, "Failed to get touch ownership events\n")do { if (nev == 0) { ErrorFSigSafe("BUG: triggered 'if (" "nev == 0" ")'\n"); ErrorFSigSafe("BUG: %s:%u in %s()\n", "touch.c", 1002 , __func__); if (1) ErrorFSigSafe("Failed to get touch ownership events\n" ); xorg_backtrace(); } } while(0); | |||||
1003 | ||||||
1004 | for (i = 0; i < nev; i++) | |||||
1005 | mieqProcessDeviceEvent(dev, events + i, NULL((void*)0)); | |||||
1006 | ||||||
1007 | FreeEventList(events, GetMaximumEventsNum()); | |||||
1008 | ||||||
1009 | return nev ? Success0 : BadMatch8; | |||||
1010 | } | |||||
1011 | ||||||
1012 | int | |||||
1013 | TouchAcceptReject(ClientPtr client, DeviceIntPtr dev, int mode, | |||||
1014 | uint32_t touchid, Window grab_window, XID *error) | |||||
1015 | { | |||||
1016 | TouchPointInfoPtr ti; | |||||
1017 | int i; | |||||
1018 | ||||||
1019 | if (!dev->touch) { | |||||
1020 | *error = dev->id; | |||||
1021 | return BadDevice; | |||||
1022 | } | |||||
1023 | ||||||
1024 | ti = TouchFindByClientID(dev, touchid); | |||||
1025 | if (!ti) { | |||||
1026 | *error = touchid; | |||||
1027 | return BadValue2; | |||||
1028 | } | |||||
1029 | ||||||
1030 | for (i = 0; i < ti->num_listeners; i++) { | |||||
1031 | if (CLIENT_ID(ti->listeners[i].listener)((int)(((ti->listeners[i].listener) & (((1 << ResourceClientBits ()) - 1) << (29 - ResourceClientBits()))) >> (29 - ResourceClientBits()))) == client->index && | |||||
1032 | ti->listeners[i].window->drawable.id == grab_window) | |||||
1033 | break; | |||||
1034 | } | |||||
1035 | if (i == ti->num_listeners) | |||||
1036 | return BadAccess10; | |||||
1037 | ||||||
1038 | return TouchListenerAcceptReject(dev, ti, i, mode); | |||||
1039 | } | |||||
1040 | ||||||
1041 | /** | |||||
1042 | * End physically active touches for a device. | |||||
1043 | */ | |||||
1044 | void | |||||
1045 | TouchEndPhysicallyActiveTouches(DeviceIntPtr dev) | |||||
1046 | { | |||||
1047 | InternalEvent *eventlist = InitEventList(GetMaximumEventsNum()); | |||||
1048 | int i; | |||||
1049 | ||||||
1050 | input_lock(); | |||||
1051 | mieqProcessInputEvents(); | |||||
1052 | for (i = 0; i < dev->last.num_touches; i++) { | |||||
1053 | DDXTouchPointInfoPtr ddxti = dev->last.touches + i; | |||||
1054 | ||||||
1055 | if (ddxti->active) { | |||||
1056 | int j; | |||||
1057 | int nevents = GetTouchEvents(eventlist, dev, ddxti->ddx_id, | |||||
1058 | XI_TouchEnd20, 0, NULL((void*)0)); | |||||
1059 | ||||||
1060 | for (j = 0; j < nevents; j++) | |||||
1061 | mieqProcessDeviceEvent(dev, eventlist + j, NULL((void*)0)); | |||||
1062 | } | |||||
1063 | } | |||||
1064 | input_unlock(); | |||||
1065 | ||||||
1066 | FreeEventList(eventlist, GetMaximumEventsNum()); | |||||
1067 | } | |||||
1068 | ||||||
1069 | /** | |||||
1070 | * Generate and deliver a TouchEnd event. | |||||
1071 | * | |||||
1072 | * @param dev The device to deliver the event for. | |||||
1073 | * @param ti The touch point record to deliver the event for. | |||||
1074 | * @param flags Internal event flags. The called does not need to provide | |||||
1075 | * TOUCH_CLIENT_ID and TOUCH_POINTER_EMULATED, this function will ensure | |||||
1076 | * they are set appropriately. | |||||
1077 | * @param resource The client resource to deliver to, or 0 for all clients. | |||||
1078 | */ | |||||
1079 | void | |||||
1080 | TouchEmitTouchEnd(DeviceIntPtr dev, TouchPointInfoPtr ti, int flags, XID resource) | |||||
1081 | { | |||||
1082 | InternalEvent event; | |||||
1083 | ||||||
1084 | /* We're not processing a touch end for a frozen device */ | |||||
1085 | if (dev->deviceGrab.sync.frozen) | |||||
1086 | return; | |||||
1087 | ||||||
1088 | flags |= TOUCH_CLIENT_ID(1 << 3); | |||||
1089 | if (ti->emulate_pointer) | |||||
1090 | flags |= TOUCH_POINTER_EMULATED(1 << 5); | |||||
1091 | TouchDeliverDeviceClassesChangedEvent(ti, GetTimeInMillis(), resource); | |||||
1092 | GetDixTouchEnd(&event, dev, ti, flags); | |||||
1093 | DeliverTouchEvents(dev, ti, &event, resource); | |||||
1094 | if (ti->num_grabs == 0) | |||||
1095 | UpdateDeviceState(dev, &event.device_event); | |||||
1096 | } | |||||
1097 | ||||||
1098 | void | |||||
1099 | TouchAcceptAndEnd(DeviceIntPtr dev, int touchid) | |||||
1100 | { | |||||
1101 | TouchPointInfoPtr ti = TouchFindByClientID(dev, touchid); | |||||
1102 | if (!ti) | |||||
1103 | return; | |||||
1104 | ||||||
1105 | TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch6); | |||||
1106 | if (ti->pending_finish) | |||||
1107 | TouchEmitTouchEnd(dev, ti, 0, 0); | |||||
1108 | if (ti->num_listeners <= 1) | |||||
1109 | TouchEndTouch(dev, ti); | |||||
1110 | } |