| 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_H |
| 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_SIZE 100 |
| 44 | |
| 45 | /* If a touch queue resize is needed, the device id's bit is set. */ |
| 46 | static unsigned char resize_waiting[(MAXDEVICES + 7) / 8]; |
| 47 | |
| 48 | /** |
| 49 | * Some documentation about touch points: |
| 50 | * The driver submits touch events with it's own (unique) touch point ID. |
| 51 | * The driver may re-use those IDs, the DDX doesn't care. It just passes on |
| 52 | * the data to the DIX. In the server, the driver's ID is referred to as the |
| 53 | * DDX id anyway. |
| 54 | * |
| 55 | * On a TouchBegin, we create a DDXTouchPointInfo that contains the DDX id |
| 56 | * and the client ID that this touchpoint will have. The client ID is the |
| 57 | * one visible on the protocol. |
| 58 | * |
| 59 | * TouchUpdate and TouchEnd will only be processed if there is an active |
| 60 | * touchpoint with the same DDX id. |
| 61 | * |
| 62 | * The DDXTouchPointInfo struct is stored dev->last.touches. When the event |
| 63 | * being processed, it becomes a TouchPointInfo in dev->touch-touches which |
| 64 | * contains amongst other things the sprite trace and delivery information. |
| 65 | */ |
| 66 | |
| 67 | /** |
| 68 | * Check which devices need a bigger touch event queue and grow their |
| 69 | * last.touches by half it's current size. |
| 70 | * |
| 71 | * @param client Always the serverClient |
| 72 | * @param closure Always NULL |
| 73 | * |
| 74 | * @return Always True. If we fail to grow we probably will topple over soon |
| 75 | * anyway and re-executing this won't help. |
| 76 | */ |
| 77 | static Bool |
| 78 | TouchResizeQueue(ClientPtr client, pointer closure) |
| 79 | { |
| 80 | int i; |
| 81 | |
| 82 | OsBlockSignals(); |
| 83 | |
| 84 | /* first two ids are reserved */ |
| 85 | for (i = 2; i < MAXDEVICES; i++) { |
| 86 | DeviceIntPtr dev; |
| 87 | DDXTouchPointInfoPtr tmp; |
| 88 | size_t size; |
| 89 | |
| 90 | if (!BitIsOn(resize_waiting, i)) |
| 91 | continue; |
| 92 | |
| 93 | ClearBit(resize_waiting, i); |
| 94 | |
| 95 | /* device may have disappeared by now */ |
| 96 | dixLookupDevice(&dev, i, serverClient, DixWriteAccess); |
| 97 | if (!dev) |
| 98 | continue; |
| 99 | |
| 100 | /* Need to grow the queue means dropping events. Grow sufficiently so we |
| 101 | * don't need to do it often */ |
| 102 | size = dev->last.num_touches + dev->last.num_touches / 2 + 1; |
| 103 | |
| 104 | tmp = realloc(dev->last.touches, size * sizeof(*dev->last.touches)); |
| 105 | if (tmp) { |
| 106 | int j; |
| 107 | |
| 108 | dev->last.touches = tmp; |
| 109 | for (j = dev->last.num_touches; j < size; j++) |
| 110 | TouchInitDDXTouchPoint(dev, &dev->last.touches[j]); |
| 111 | dev->last.num_touches = size; |
| 112 | } |
| 113 | |
| 114 | } |
| 115 | OsReleaseSignals(); |
| 116 | |
| 117 | return TRUE; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Given the DDX-facing ID (which is _not_ DeviceEvent::detail.touch), find the |
| 122 | * associated DDXTouchPointInfoRec. |
| 123 | * |
| 124 | * @param dev The device to create the touch point for |
| 125 | * @param ddx_id Touch id assigned by the driver/ddx |
| 126 | * @param create Create the touchpoint if it cannot be found |
| 127 | */ |
| 128 | DDXTouchPointInfoPtr |
| 129 | TouchFindByDDXID(DeviceIntPtr dev, uint32_t ddx_id, Bool create) |
| 130 | { |
| 131 | DDXTouchPointInfoPtr ti; |
| 132 | int i; |
| 133 | |
| 134 | if (!dev->touch) |
| 135 | return NULL; |
| 136 | |
| 137 | for (i = 0; i < dev->last.num_touches; i++) { |
| 138 | ti = &dev->last.touches[i]; |
| 139 | if (ti->active && ti->ddx_id == ddx_id) |
| 140 | return ti; |
| 141 | } |
| 142 | |
| 143 | return create ? TouchBeginDDXTouch(dev, ddx_id) : NULL; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Given a unique DDX ID for a touchpoint, create a touchpoint record and |
| 148 | * return it. |
| 149 | * |
| 150 | * If no other touch points are active, mark new touchpoint for pointer |
| 151 | * emulation. |
| 152 | * |
| 153 | * Returns NULL on failure (i.e. if another touch with that ID is already active, |
| 154 | * allocation failure). |
| 155 | */ |
| 156 | DDXTouchPointInfoPtr |
| 157 | TouchBeginDDXTouch(DeviceIntPtr dev, uint32_t ddx_id) |
| 158 | { |
| 159 | static int next_client_id = 1; |
| 160 | int i; |
| 161 | TouchClassPtr t = dev->touch; |
| 162 | DDXTouchPointInfoPtr ti = NULL; |
| 163 | Bool emulate_pointer; |
| 164 | |
| 165 | if (!t) |
| 166 | return NULL; |
| 167 | |
| 168 | emulate_pointer = (t->mode == XIDirectTouch); |
| 169 | |
| 170 | /* Look for another active touchpoint with the same DDX ID. DDX |
| 171 | * touchpoints must be unique. */ |
| 172 | if (TouchFindByDDXID(dev, ddx_id, FALSE)) |
| 173 | return NULL; |
| 174 | |
| 175 | for (i = 0; i < dev->last.num_touches; i++) { |
| 176 | /* Only emulate pointer events on the first touch */ |
| 177 | if (dev->last.touches[i].active) |
| 178 | emulate_pointer = FALSE; |
| 179 | else if (!ti) /* ti is now first non-active touch rec */ |
| 180 | ti = &dev->last.touches[i]; |
| 181 | |
| 182 | if (!emulate_pointer && ti) |
| 183 | break; |
| 184 | } |
| 185 | |
| 186 | if (ti) { |
| 187 | int client_id; |
| 188 | |
| 189 | ti->active = TRUE; |
| 190 | ti->ddx_id = ddx_id; |
| 191 | client_id = next_client_id; |
| 192 | next_client_id++; |
| 193 | if (next_client_id == 0) |
| 194 | next_client_id = 1; |
| 195 | ti->client_id = client_id; |
| 196 | ti->emulate_pointer = emulate_pointer; |
| 197 | return ti; |
| 198 | } |
| 199 | |
| 200 | /* If we get here, then we've run out of touches and we need to drop the |
| 201 | * event (we're inside the SIGIO handler here) schedule a WorkProc to |
| 202 | * grow the queue for us for next time. */ |
| 203 | ErrorFSigSafe("%s: not enough space for touch events (max %u touchpoints). " |
| 204 | "Dropping this event.\n", dev->name, dev->last.num_touches); |
| 205 | |
| 206 | if (!BitIsOn(resize_waiting, dev->id)) { |
| 207 | SetBit(resize_waiting, dev->id); |
| 208 | QueueWorkProc(TouchResizeQueue, serverClient, NULL); |
| 209 | } |
| 210 | |
| 211 | return NULL; |
| 212 | } |
| 213 | |
| 214 | void |
| 215 | TouchEndDDXTouch(DeviceIntPtr dev, DDXTouchPointInfoPtr ti) |
| 216 | { |
| 217 | TouchClassPtr t = dev->touch; |
| 218 | |
| 219 | if (!t) |
| 220 | return; |
| 221 | |
| 222 | ti->active = FALSE; |
| 223 | } |
| 224 | |
| 225 | void |
| 226 | TouchInitDDXTouchPoint(DeviceIntPtr dev, DDXTouchPointInfoPtr ddxtouch) |
| 227 | { |
| 228 | memset(ddxtouch, 0, sizeof(*ddxtouch)); |
| 229 | ddxtouch->valuators = valuator_mask_new(dev->valuator->numAxes); |
| 230 | } |
| 231 | |
| 232 | Bool |
| 233 | TouchInitTouchPoint(TouchClassPtr t, ValuatorClassPtr v, int index) |
| 234 | { |
| 235 | TouchPointInfoPtr ti; |
| 236 | |
| 237 | if (index >= t->num_touches) |
| 238 | return FALSE; |
| 239 | ti = &t->touches[index]; |
| 240 | |
| 241 | memset(ti, 0, sizeof(*ti)); |
| 242 | |
| 243 | ti->valuators = valuator_mask_new(v->numAxes); |
| 244 | if (!ti->valuators) |
| 245 | return FALSE; |
| 246 | |
| 247 | ti->sprite.spriteTrace = calloc(32, sizeof(*ti->sprite.spriteTrace)); |
| 248 | if (!ti->sprite.spriteTrace) { |
| 249 | valuator_mask_free(&ti->valuators); |
| 250 | return FALSE; |
| 251 | } |
| 252 | ti->sprite.spriteTraceSize = 32; |
| 253 | ti->sprite.spriteTrace[0] = screenInfo.screens[0]->root; |
| 254 | ti->sprite.hot.pScreen = screenInfo.screens[0]; |
| 255 | ti->sprite.hotPhys.pScreen = screenInfo.screens[0]; |
| 256 | |
| 257 | ti->client_id = -1; |
| 258 | |
| 259 | return TRUE; |
| 260 | } |
| 261 | |
| 262 | void |
| 263 | TouchFreeTouchPoint(DeviceIntPtr device, int index) |
| 264 | { |
| 265 | TouchPointInfoPtr ti; |
| 266 | int i; |
| 267 | |
| 268 | if (!device->touch || index >= device->touch->num_touches) |
| 269 | return; |
| 270 | ti = &device->touch->touches[index]; |
| 271 | |
| 272 | if (ti->active) |
| 273 | TouchEndTouch(device, ti); |
| 274 | |
| 275 | for (i = 0; i < ti->num_listeners; i++) |
| 276 | TouchRemoveListener(ti, ti->listeners[0].listener); |
| 277 | |
| 278 | valuator_mask_free(&ti->valuators); |
| 279 | free(ti->sprite.spriteTrace); |
| 280 | ti->sprite.spriteTrace = NULL; |
| 281 | free(ti->listeners); |
| 282 | ti->listeners = NULL; |
| 283 | free(ti->history); |
| 284 | ti->history = NULL; |
| 285 | ti->history_size = 0; |
| 286 | ti->history_elements = 0; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Given a client-facing ID (e.g. DeviceEvent::detail.touch), find the |
| 291 | * associated TouchPointInfoRec. |
| 292 | */ |
| 293 | TouchPointInfoPtr |
| 294 | TouchFindByClientID(DeviceIntPtr dev, uint32_t client_id) |
| 295 | { |
| 296 | TouchClassPtr t = dev->touch; |
| 297 | TouchPointInfoPtr ti; |
| 298 | int i; |
| 299 | |
| 300 | if (!t) |
| 301 | return NULL; |
| 302 | |
| 303 | for (i = 0; i < t->num_touches; i++) { |
| 304 | ti = &t->touches[i]; |
| 305 | if (ti->active && ti->client_id == client_id) |
| 306 | return ti; |
| 307 | } |
| 308 | |
| 309 | return NULL; |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Given a unique ID for a touchpoint, create a touchpoint record in the |
| 314 | * server. |
| 315 | * |
| 316 | * Returns NULL on failure (i.e. if another touch with that ID is already active, |
| 317 | * allocation failure). |
| 318 | */ |
| 319 | TouchPointInfoPtr |
| 320 | TouchBeginTouch(DeviceIntPtr dev, int sourceid, uint32_t touchid, |
| 321 | Bool emulate_pointer) |
| 322 | { |
| 323 | int i; |
| 324 | TouchClassPtr t = dev->touch; |
| 325 | TouchPointInfoPtr ti; |
| 326 | void *tmp; |
| 327 | |
| 328 | if (!t) |
| 329 | return NULL; |
| 330 | |
| 331 | /* Look for another active touchpoint with the same client ID. It's |
| 332 | * technically legitimate for a touchpoint to still exist with the same |
| 333 | * ID but only once the 32 bits wrap over and you've used up 4 billion |
| 334 | * touch ids without lifting that one finger off once. In which case |
| 335 | * you deserve a medal or something, but not error handling code. */ |
| 336 | if (TouchFindByClientID(dev, touchid)) |
| 337 | return NULL; |
| 338 | |
| 339 | try_find_touch: |
| 340 | for (i = 0; i < t->num_touches; i++) { |
| 341 | ti = &t->touches[i]; |
| 342 | if (!ti->active) { |
| 343 | ti->active = TRUE; |
| 344 | ti->client_id = touchid; |
| 345 | ti->sourceid = sourceid; |
| 346 | ti->emulate_pointer = emulate_pointer; |
| 347 | return ti; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | /* If we get here, then we've run out of touches: enlarge dev->touch and |
| 352 | * try again. */ |
| 353 | tmp = realloc(t->touches, (t->num_touches + 1) * sizeof(*ti)); |
| 354 | if (tmp) { |
| 355 | t->touches = tmp; |
| 356 | t->num_touches++; |
| 357 | if (TouchInitTouchPoint(t, dev->valuator, t->num_touches - 1)) |
| 358 | goto try_find_touch; |
| 359 | } |
| 360 | |
| 361 | return NULL; |
| 362 | } |
| 363 | |
| 364 | /** |
| 365 | * Releases a touchpoint for use: this must only be called after all events |
| 366 | * related to that touchpoint have been sent and finalised. Called from |
| 367 | * ProcessTouchEvent and friends. Not by you. |
| 368 | */ |
| 369 | void |
| 370 | TouchEndTouch(DeviceIntPtr dev, TouchPointInfoPtr ti) |
| 371 | { |
| 372 | int i; |
| 373 | |
| 374 | if (ti->emulate_pointer) { |
| 375 | GrabPtr grab; |
| 376 | |
| 377 | if ((grab = dev->deviceGrab.grab)) { |
| 378 | if (dev->deviceGrab.fromPassiveGrab && |
| 379 | !dev->button->buttonsDown && |
| 380 | !dev->touch->buttonsDown && GrabIsPointerGrab(grab)) |
| 381 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | for (i = 0; i < ti->num_listeners; i++) |
| 386 | TouchRemoveListener(ti, ti->listeners[0].listener); |
| 387 | |
| 388 | ti->active = FALSE; |
| 389 | ti->pending_finish = FALSE; |
| 390 | ti->sprite.spriteTraceGood = 0; |
| 391 | free(ti->listeners); |
| 392 | ti->listeners = NULL; |
| 393 | ti->num_listeners = 0; |
| 394 | ti->num_grabs = 0; |
| 395 | ti->client_id = 0; |
| 396 | |
| 397 | TouchEventHistoryFree(ti); |
| 398 | |
| 399 | valuator_mask_zero(ti->valuators); |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Allocate the event history for this touch pointer. Calling this on a |
| 404 | * touchpoint that already has an event history does nothing but counts as |
| 405 | * as success. |
| 406 | * |
| 407 | * @return TRUE on success, FALSE on allocation errors |
| 408 | */ |
| 409 | Bool |
| 410 | TouchEventHistoryAllocate(TouchPointInfoPtr ti) |
| 411 | { |
| 412 | if (ti->history) |
| 413 | return TRUE; |
| 414 | |
| 415 | ti->history = calloc(TOUCH_HISTORY_SIZE, sizeof(*ti->history)); |
| 416 | ti->history_elements = 0; |
| 417 | if (ti->history) |
| 418 | ti->history_size = TOUCH_HISTORY_SIZE; |
| 419 | return ti->history != NULL; |
| 420 | } |
| 421 | |
| 422 | void |
| 423 | TouchEventHistoryFree(TouchPointInfoPtr ti) |
| 424 | { |
| 425 | free(ti->history); |
| 426 | ti->history = NULL; |
| 427 | ti->history_size = 0; |
| 428 | ti->history_elements = 0; |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * Store the given event on the event history (if one exists) |
| 433 | * A touch event history consists of one TouchBegin and several TouchUpdate |
| 434 | * events (if applicable) but no TouchEnd event. |
| 435 | * If more than one TouchBegin is pushed onto the stack, the push is |
| 436 | * ignored, calling this function multiple times for the TouchBegin is |
| 437 | * valid. |
| 438 | */ |
| 439 | void |
| 440 | TouchEventHistoryPush(TouchPointInfoPtr ti, const DeviceEvent *ev) |
| 441 | { |
| 442 | if (!ti->history) |
| 443 | return; |
| 444 | |
| 445 | switch (ev->type) { |
| 446 | case ET_TouchBegin: |
| 447 | /* don't store the same touchbegin twice */ |
| 448 | if (ti->history_elements > 0) |
| 449 | return; |
| 450 | break; |
| 451 | case ET_TouchUpdate: |
| 452 | break; |
| 453 | case ET_TouchEnd: |
| 454 | return; /* no TouchEnd events in the history */ |
| 455 | default: |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | /* We only store real events in the history */ |
| 460 | if (ev->flags & (TOUCH_CLIENT_ID | TOUCH_REPLAYING)) |
| 461 | return; |
| 462 | |
| 463 | ti->history[ti->history_elements++] = *ev; |
| 464 | /* FIXME: proper overflow fixes */ |
| 465 | if (ti->history_elements > ti->history_size - 1) { |
| 466 | ti->history_elements = ti->history_size - 1; |
| 467 | DebugF("source device %d: history size %d overflowing for touch %u\n", |
| 468 | ti->sourceid, ti->history_size, ti->client_id); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | void |
| 473 | TouchEventHistoryReplay(TouchPointInfoPtr ti, DeviceIntPtr dev, XID resource) |
| 474 | { |
| 475 | int i; |
| 476 | |
| 477 | if (!ti->history) |
| 478 | return; |
| 479 | |
| 480 | TouchDeliverDeviceClassesChangedEvent(ti, ti->history[0].time, resource); |
| 481 | |
| 482 | for (i = 0; i < ti->history_elements; i++) { |
| 483 | DeviceEvent *ev = &ti->history[i]; |
| 484 | |
| 485 | ev->flags |= TOUCH_REPLAYING; |
| 486 | ev->resource = resource; |
| 487 | /* FIXME: |
| 488 | We're replaying ti->history which contains the TouchBegin + |
| 489 | all TouchUpdates for ti. This needs to be passed on to the next |
| 490 | listener. If that is a touch listener, everything is dandy. |
| 491 | If the TouchBegin however triggers a sync passive grab, the |
| 492 | TouchUpdate events must be sent to EnqueueEvent so the events end |
| 493 | up in syncEvents.pending to be forwarded correctly in a |
| 494 | subsequent ComputeFreeze(). |
| 495 | |
| 496 | However, if we just send them to EnqueueEvent the sync'ing device |
| 497 | prevents handling of touch events for ownership listeners who |
| 498 | want the events right here, right now. |
| 499 | */ |
| 500 | dev->public.processInputProc((InternalEvent*)ev, dev); |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | void |
| 505 | TouchDeliverDeviceClassesChangedEvent(TouchPointInfoPtr ti, Time time, |
| 506 | XID resource) |
| 507 | { |
| 508 | DeviceIntPtr dev; |
| 509 | int num_events = 0; |
| 510 | InternalEvent dcce; |
| 511 | |
| 512 | dixLookupDevice(&dev, ti->sourceid, serverClient, DixWriteAccess); |
| 513 | |
| 514 | if (!dev) |
| 515 | return; |
| 516 | |
| 517 | /* UpdateFromMaster generates at most one event */ |
| 518 | UpdateFromMaster(&dcce, dev, DEVCHANGE_POINTER_EVENT, &num_events); |
| 519 | BUG_WARN(num_events > 1); |
| 520 | |
| 521 | if (num_events) { |
| 522 | dcce.any.time = time; |
| 523 | /* FIXME: This doesn't do anything */ |
| 524 | dev->public.processInputProc(&dcce, dev); |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | Bool |
| 529 | TouchBuildDependentSpriteTrace(DeviceIntPtr dev, SpritePtr sprite) |
| 530 | { |
| 531 | int i; |
| 532 | TouchClassPtr t = dev->touch; |
| 533 | WindowPtr *trace; |
| 534 | SpritePtr srcsprite; |
| 535 | |
| 536 | /* All touches should have the same sprite trace, so find and reuse an |
| 537 | * existing touch's sprite if possible, else use the device's sprite. */ |
| 538 | for (i = 0; i < t->num_touches; i++) |
| 539 | if (!t->touches[i].pending_finish && |
| 540 | t->touches[i].sprite.spriteTraceGood > 0) |
| 541 | break; |
| 542 | if (i < t->num_touches) |
| 543 | srcsprite = &t->touches[i].sprite; |
| 544 | else if (dev->spriteInfo->sprite) |
| 545 | srcsprite = dev->spriteInfo->sprite; |
| 546 | else |
| 547 | return FALSE; |
| 548 | |
| 549 | if (srcsprite->spriteTraceGood > sprite->spriteTraceSize) { |
| 550 | trace = realloc(sprite->spriteTrace, |
| 551 | srcsprite->spriteTraceSize * sizeof(*trace)); |
| 552 | if (!trace) { |
| 553 | sprite->spriteTraceGood = 0; |
| 554 | return FALSE; |
| 555 | } |
| 556 | sprite->spriteTrace = trace; |
| 557 | sprite->spriteTraceSize = srcsprite->spriteTraceGood; |
| 558 | } |
| 559 | memcpy(sprite->spriteTrace, srcsprite->spriteTrace, |
| 560 | srcsprite->spriteTraceGood * sizeof(*trace)); |
| 561 | sprite->spriteTraceGood = srcsprite->spriteTraceGood; |
| 562 | |
| 563 | return TRUE; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * Ensure a window trace is present in ti->sprite, constructing one for |
| 568 | * TouchBegin events. |
| 569 | */ |
| 570 | Bool |
| 571 | TouchBuildSprite(DeviceIntPtr sourcedev, TouchPointInfoPtr ti, |
| 572 | InternalEvent *ev) |
| 573 | { |
| 574 | TouchClassPtr t = sourcedev->touch; |
| 575 | SpritePtr sprite = &ti->sprite; |
| 576 | |
| 577 | if (t->mode == XIDirectTouch) { |
| 578 | /* Focus immediately under the touchpoint in direct touch mode. |
| 579 | * XXX: Do we need to handle crossing screens here? */ |
| 580 | sprite->spriteTrace[0] = |
| 581 | sourcedev->spriteInfo->sprite->hotPhys.pScreen->root; |
| 582 | XYToWindow(sprite, ev->device_event.root_x, ev->device_event.root_y); |
| 583 | } |
| 584 | else if (!TouchBuildDependentSpriteTrace(sourcedev, sprite)) |
| 585 | return FALSE; |
| 586 | |
| 587 | if (sprite->spriteTraceGood <= 0) |
| 588 | return FALSE; |
| 589 | |
| 590 | /* Mark which grabs/event selections we're delivering to: max one grab per |
| 591 | * window plus the bottom-most event selection, plus any active grab. */ |
| 592 | ti->listeners = calloc(sprite->spriteTraceGood + 2, sizeof(*ti->listeners)); |
| 593 | if (!ti->listeners) { |
| 594 | sprite->spriteTraceGood = 0; |
| 595 | return FALSE; |
| 596 | } |
| 597 | ti->num_listeners = 0; |
| 598 | |
| 599 | return TRUE; |
| 600 | } |
| 601 | |
| 602 | /** |
| 603 | * Copy the touch event into the pointer_event, switching the required |
| 604 | * fields to make it a correct pointer event. |
| 605 | * |
| 606 | * @param event The original touch event |
| 607 | * @param[in] motion_event The respective motion event |
| 608 | * @param[in] button_event The respective button event (if any) |
| 609 | * |
| 610 | * @returns The number of converted events. |
| 611 | * @retval 0 An error occured |
| 612 | * @retval 1 only the motion event is valid |
| 613 | * @retval 2 motion and button event are valid |
| 614 | */ |
| 615 | int |
| 616 | TouchConvertToPointerEvent(const InternalEvent *event, |
| 617 | InternalEvent *motion_event, |
| 618 | InternalEvent *button_event) |
| 619 | { |
| 620 | int ptrtype; |
| 621 | int nevents = 0; |
| 622 | |
| 623 | BUG_RETURN_VAL(!event, 0); |
| 624 | BUG_RETURN_VAL(!motion_event, 0); |
| 625 | |
| 626 | switch (event->any.type) { |
| 627 | case ET_TouchUpdate: |
| 628 | nevents = 1; |
| 629 | break; |
| 630 | case ET_TouchBegin: |
| 631 | nevents = 2; /* motion + press */ |
| 632 | ptrtype = ET_ButtonPress; |
| 633 | break; |
| 634 | case ET_TouchEnd: |
| 635 | nevents = 2; /* motion + release */ |
| 636 | ptrtype = ET_ButtonRelease; |
| 637 | break; |
| 638 | default: |
| 639 | BUG_WARN_MSG(1, "Invalid event type %d\n", event->any.type); |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | BUG_WARN_MSG(!(event->device_event.flags & TOUCH_POINTER_EMULATED), |
| 644 | "Non-emulating touch event\n"); |
| 645 | |
| 646 | motion_event->device_event = event->device_event; |
| 647 | motion_event->any.type = ET_Motion; |
| 648 | motion_event->device_event.detail.button = 0; |
| 649 | motion_event->device_event.flags = XIPointerEmulated; |
| 650 | |
| 651 | if (nevents > 1) { |
| 652 | BUG_RETURN_VAL(!button_event, 0); |
| 653 | button_event->device_event = event->device_event; |
| 654 | button_event->any.type = ptrtype; |
| 655 | button_event->device_event.flags = XIPointerEmulated; |
| 656 | /* detail is already correct */ |
| 657 | } |
| 658 | |
| 659 | return nevents; |
| 660 | } |
| 661 | |
| 662 | /** |
| 663 | * Return the corresponding pointer emulation internal event type for the given |
| 664 | * touch event or 0 if no such event type exists. |
| 665 | */ |
| 666 | int |
| 667 | TouchGetPointerEventType(const InternalEvent *event) |
| 668 | { |
| 669 | int type = 0; |
| 670 | |
| 671 | switch (event->any.type) { |
| 672 | case ET_TouchBegin: |
| 673 | type = ET_ButtonPress; |
| 674 | break; |
| 675 | case ET_TouchUpdate: |
| 676 | type = ET_Motion; |
| 677 | break; |
| 678 | case ET_TouchEnd: |
| 679 | type = ET_ButtonRelease; |
| 680 | break; |
| 681 | default: |
| 682 | break; |
| 683 | } |
| 684 | return type; |
| 685 | } |
| 686 | |
| 687 | /** |
| 688 | * @returns TRUE if the specified grab or selection is the current owner of |
| 689 | * the touch sequence. |
| 690 | */ |
| 691 | Bool |
| 692 | TouchResourceIsOwner(TouchPointInfoPtr ti, XID resource) |
| 693 | { |
| 694 | return (ti->listeners[0].listener == resource); |
| 695 | } |
| 696 | |
| 697 | /** |
| 698 | * Add the resource to this touch's listeners. |
| 699 | */ |
| 700 | void |
| 701 | TouchAddListener(TouchPointInfoPtr ti, XID resource, int resource_type, |
| 702 | enum InputLevel level, enum TouchListenerType type, |
| 703 | enum TouchListenerState state, WindowPtr window, |
| 704 | const GrabPtr grab) |
| 705 | { |
| 706 | GrabPtr g = NULL; |
| 707 | |
| 708 | /* We need a copy of the grab, not the grab itself since that may be |
| 709 | * deleted by a UngrabButton request and leaves us with a dangling |
| 710 | * pointer */ |
| 711 | if (grab) |
| 712 | g = AllocGrab(grab); |
| 713 | |
| 714 | ti->listeners[ti->num_listeners].listener = resource; |
| 715 | ti->listeners[ti->num_listeners].resource_type = resource_type; |
| 716 | ti->listeners[ti->num_listeners].level = level; |
| 717 | ti->listeners[ti->num_listeners].state = state; |
| 718 | ti->listeners[ti->num_listeners].type = type; |
| 719 | ti->listeners[ti->num_listeners].window = window; |
| 720 | ti->listeners[ti->num_listeners].grab = g; |
| 721 | if (grab) |
| 722 | ti->num_grabs++; |
| 723 | ti->num_listeners++; |
| 724 | } |
| 725 | |
| 726 | /** |
| 727 | * Remove the resource from this touch's listeners. |
| 728 | * |
| 729 | * @return TRUE if the resource was removed, FALSE if the resource was not |
| 730 | * in the list |
| 731 | */ |
| 732 | Bool |
| 733 | TouchRemoveListener(TouchPointInfoPtr ti, XID resource) |
| 734 | { |
| 735 | int i; |
| 736 | |
| 737 | for (i = 0; i < ti->num_listeners; i++) { |
| 738 | int j; |
| 739 | TouchListener *listener = &ti->listeners[i]; |
| 740 | |
| 741 | if (listener->listener != resource) |
| 742 | continue; |
| 743 | |
| 744 | if (listener->grab) { |
| 745 | FreeGrab(listener->grab); |
| 746 | listener->grab = NULL; |
| 747 | ti->num_grabs--; |
| 748 | } |
| 749 | |
| 750 | for (j = i; j < ti->num_listeners - 1; j++) |
| 751 | ti->listeners[j] = ti->listeners[j + 1]; |
| 752 | ti->num_listeners--; |
| 753 | ti->listeners[ti->num_listeners].listener = 0; |
| 754 | ti->listeners[ti->num_listeners].state = LISTENER_AWAITING_BEGIN; |
| 755 | |
| 756 | return TRUE; |
| 757 | } |
| 758 | return FALSE; |
| 759 | } |
| 760 | |
| 761 | static void |
| 762 | TouchAddGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 763 | InternalEvent *ev, GrabPtr grab) |
| 764 | { |
| 765 | enum TouchListenerType type = LISTENER_GRAB; |
| 766 | |
| 767 | /* FIXME: owner_events */ |
| 768 | |
| 769 | if (grab->grabtype == XI2) { |
| 770 | if (!xi2mask_isset(grab->xi2mask, dev, XI_TouchOwnership)) |
| 771 | TouchEventHistoryAllocate(ti); |
| 772 | if (!xi2mask_isset(grab->xi2mask, dev, XI_TouchBegin)) |
| 773 | type = LISTENER_POINTER_GRAB; |
| 774 | } |
| 775 | else if (grab->grabtype == XI || grab->grabtype == CORE) { |
| 776 | TouchEventHistoryAllocate(ti); |
| 777 | type = LISTENER_POINTER_GRAB; |
| 778 | } |
| 779 | |
| 780 | /* grab listeners are always RT_NONE since we keep the grab pointer */ |
| 781 | TouchAddListener(ti, grab->resource, RT_NONE, grab->grabtype, |
| 782 | type, LISTENER_AWAITING_BEGIN, grab->window, grab); |
| 783 | } |
| 784 | |
| 785 | /** |
| 786 | * Add one listener if there is a grab on the given window. |
| 787 | */ |
| 788 | static void |
| 789 | TouchAddPassiveGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 790 | WindowPtr win, InternalEvent *ev) |
| 791 | { |
| 792 | GrabPtr grab; |
| 793 | Bool check_core = IsMaster(dev) && ti->emulate_pointer; |
| 794 | |
| 795 | /* FIXME: make CheckPassiveGrabsOnWindow only trigger on TouchBegin */ |
| 796 | grab = CheckPassiveGrabsOnWindow(win, dev, ev, check_core, FALSE); |
| 797 | if (!grab) |
| 798 | return; |
| 799 | |
| 800 | TouchAddGrabListener(dev, ti, ev, grab); |
| 801 | } |
| 802 | |
| 803 | static Bool |
| 804 | TouchAddRegularListener(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 805 | WindowPtr win, InternalEvent *ev) |
| 806 | { |
| 807 | InputClients *iclients = NULL; |
| 808 | OtherInputMasks *inputMasks = NULL; |
| 809 | uint16_t evtype = 0; /* may be event type or emulated event type */ |
| 810 | enum TouchListenerType type = LISTENER_REGULAR; |
| 811 | int mask; |
| 812 | |
| 813 | evtype = GetXI2Type(ev->any.type); |
| 814 | mask = EventIsDeliverable(dev, ev->any.type, win); |
| 815 | if (!mask && !ti->emulate_pointer) |
| 816 | return FALSE; |
| 817 | else if (!mask) { /* now try for pointer event */ |
| 818 | mask = EventIsDeliverable(dev, TouchGetPointerEventType(ev), win); |
| 819 | if (mask) { |
| 820 | evtype = GetXI2Type(TouchGetPointerEventType(ev)); |
| 821 | type = LISTENER_POINTER_REGULAR; |
| 822 | } |
| 823 | } |
| 824 | if (!mask) |
| 825 | return FALSE; |
| 826 | |
| 827 | inputMasks = wOtherInputMasks(win); |
| 828 | |
| 829 | if (mask & EVENT_XI2_MASK) { |
| 830 | nt_list_for_each_entry(iclients, inputMasks->inputClients, next) { |
| 831 | if (!xi2mask_isset(iclients->xi2mask, dev, evtype)) |
| 832 | continue; |
| 833 | |
| 834 | if (!xi2mask_isset(iclients->xi2mask, dev, XI_TouchOwnership)) |
| 835 | TouchEventHistoryAllocate(ti); |
| 836 | |
| 837 | TouchAddListener(ti, iclients->resource, RT_INPUTCLIENT, XI2, |
| 838 | type, LISTENER_AWAITING_BEGIN, win, NULL); |
| 839 | return TRUE; |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | if (mask & EVENT_XI1_MASK) { |
| 844 | int xitype = GetXIType(TouchGetPointerEventType(ev)); |
| 845 | Mask xi_filter = event_get_filter_from_type(dev, xitype); |
| 846 | |
| 847 | nt_list_for_each_entry(iclients, inputMasks->inputClients, next) { |
| 848 | if (!(iclients->mask[dev->id] & xi_filter)) |
| 849 | continue; |
| 850 | |
| 851 | TouchEventHistoryAllocate(ti); |
| 852 | TouchAddListener(ti, iclients->resource, RT_INPUTCLIENT, XI, |
| 853 | LISTENER_POINTER_REGULAR, LISTENER_AWAITING_BEGIN, |
| 854 | win, NULL); |
| 855 | return TRUE; |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | if (mask & EVENT_CORE_MASK) { |
| 860 | int coretype = GetCoreType(TouchGetPointerEventType(ev)); |
| 861 | Mask core_filter = event_get_filter_from_type(dev, coretype); |
| 862 | OtherClients *oclients; |
| 863 | |
| 864 | /* window owner */ |
| 865 | if (IsMaster(dev) && (win->eventMask & core_filter)) { |
| 866 | TouchEventHistoryAllocate(ti); |
| 867 | TouchAddListener(ti, win->drawable.id, RT_WINDOW, CORE, |
| 868 | LISTENER_POINTER_REGULAR, LISTENER_AWAITING_BEGIN, |
| 869 | win, NULL); |
| 870 | return TRUE; |
| 871 | } |
| 872 | |
| 873 | /* all others */ |
| 874 | nt_list_for_each_entry(oclients, wOtherClients(win), next) { |
| 875 | if (!(oclients->mask & core_filter)) |
| 876 | continue; |
| 877 | |
| 878 | TouchEventHistoryAllocate(ti); |
| 879 | TouchAddListener(ti, oclients->resource, RT_OTHERCLIENT, CORE, |
| 880 | type, LISTENER_AWAITING_BEGIN, win, NULL); |
| 881 | return TRUE; |
| 882 | } |
| 883 | } |
| 884 | |
| 885 | return FALSE; |
| 886 | } |
| 887 | |
| 888 | static void |
| 889 | TouchAddActiveGrabListener(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 890 | InternalEvent *ev, GrabPtr grab) |
| 891 | { |
| 892 | if (!ti->emulate_pointer && |
| 893 | (grab->grabtype == CORE || grab->grabtype == XI)) |
| 894 | return; |
| 895 | |
| 896 | if (!ti->emulate_pointer && |
| 897 | grab->grabtype == XI2 && |
| 898 | !xi2mask_isset(grab->xi2mask, dev, XI_TouchBegin)) |
| 899 | return; |
| 900 | |
| 901 | TouchAddGrabListener(dev, ti, ev, grab); |
| 902 | } |
| 903 | |
| 904 | void |
| 905 | TouchSetupListeners(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev) |
| 906 | { |
| 907 | int i; |
| 908 | SpritePtr sprite = &ti->sprite; |
| 909 | WindowPtr win; |
| 910 | |
| 911 | if (dev->deviceGrab.grab && !dev->deviceGrab.fromPassiveGrab) |
| 912 | TouchAddActiveGrabListener(dev, ti, ev, dev->deviceGrab.grab); |
| 913 | |
| 914 | /* We set up an active touch listener for existing touches, but not any |
| 915 | * passive grab or regular listeners. */ |
| 916 | if (ev->any.type != ET_TouchBegin) |
| 917 | return; |
| 918 | |
| 919 | /* First, find all grabbing clients from the root window down |
| 920 | * to the deepest child window. */ |
| 921 | for (i = 0; i < sprite->spriteTraceGood; i++) { |
| 922 | win = sprite->spriteTrace[i]; |
| 923 | TouchAddPassiveGrabListener(dev, ti, win, ev); |
| 924 | } |
| 925 | |
| 926 | /* Find the first client with an applicable event selection, |
| 927 | * going from deepest child window back up to the root window. */ |
| 928 | for (i = sprite->spriteTraceGood - 1; i >= 0; i--) { |
| 929 | Bool delivered; |
| 930 | |
| 931 | win = sprite->spriteTrace[i]; |
| 932 | delivered = TouchAddRegularListener(dev, ti, win, ev); |
| 933 | if (delivered) |
| 934 | return; |
| 935 | } |
| 936 | } |
| 937 | |
| 938 | /** |
| 939 | * Remove the touch pointer grab from the device. Called from |
| 940 | * DeactivatePointerGrab() |
| 941 | */ |
| 942 | void |
| 943 | TouchRemovePointerGrab(DeviceIntPtr dev) |
| 944 | { |
| 945 | TouchPointInfoPtr ti; |
| 946 | GrabPtr grab; |
| 947 | DeviceEvent *ev; |
| 948 | |
| 949 | if (!dev->touch) |
| 950 | return; |
| 951 | |
| 952 | grab = dev->deviceGrab.grab; |
| 953 | if (!grab) |
| 954 | return; |
| 955 | |
| 956 | ev = dev->deviceGrab.sync.event; |
| 957 | if (!IsTouchEvent((InternalEvent *) ev)) |
| 958 | return; |
| 959 | |
| 960 | ti = TouchFindByClientID(dev, ev->touchid); |
| 961 | if (!ti) |
| 962 | return; |
| 963 | |
| 964 | /* FIXME: missing a bit of code here... */ |
| 965 | } |
| 966 | |
| 967 | /* As touch grabs don't turn into active grabs with their own resources, we |
| 968 | * need to walk all the touches and remove this grab from any delivery |
| 969 | * lists. */ |
| 970 | void |
| 971 | TouchListenerGone(XID resource) |
| 972 | { |
| 973 | TouchPointInfoPtr ti; |
| 974 | DeviceIntPtr dev; |
| 975 | InternalEvent *events = InitEventList(GetMaximumEventsNum()); |
| 976 | int i, j, k, nev; |
| 977 | |
| 978 | if (!events) |
| 979 | FatalError("TouchListenerGone: couldn't allocate events\n"); |
| 980 | |
| 981 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 982 | if (!dev->touch) |
| 983 | continue; |
| 984 | |
| 985 | for (i = 0; i < dev->touch->num_touches; i++) { |
| 986 | ti = &dev->touch->touches[i]; |
| 987 | if (!ti->active) |
| 988 | continue; |
| 989 | |
| 990 | for (j = 0; j < ti->num_listeners; j++) { |
| 991 | if (CLIENT_BITS(ti->listeners[j].listener) != resource) |
| 992 | continue; |
| 993 | |
| 994 | nev = GetTouchOwnershipEvents(events, dev, ti, XIRejectTouch, |
| 995 | ti->listeners[j].listener, 0); |
| 996 | for (k = 0; k < nev; k++) |
| 997 | mieqProcessDeviceEvent(dev, events + k, NULL); |
| 998 | |
| 999 | break; |
| 1000 | } |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | FreeEventList(events, GetMaximumEventsNum()); |
| 1005 | } |
| 1006 | |
| 1007 | int |
| 1008 | TouchListenerAcceptReject(DeviceIntPtr dev, TouchPointInfoPtr ti, int listener, |
| 1009 | int mode) |
| 1010 | { |
| 1011 | InternalEvent *events; |
| 1012 | int nev; |
| 1013 | int i; |
| 1014 | |
| 1015 | BUG_RETURN_VAL(listener < 0, BadMatch); |
| 1016 | BUG_RETURN_VAL(listener >= ti->num_listeners, BadMatch); |
| 1017 | |
| 1018 | if (listener > 0) { |
| 1019 | if (mode == XIRejectTouch) |
| 1020 | TouchRejected(dev, ti, ti->listeners[listener].listener, NULL); |
| 1021 | else |
| 1022 | ti->listeners[listener].state = LISTENER_EARLY_ACCEPT; |
| 1023 | |
| 1024 | return Success; |
| 1025 | } |
| 1026 | |
| 1027 | events = InitEventList(GetMaximumEventsNum()); |
| 1028 | BUG_RETURN_VAL_MSG(!events, BadAlloc, "Failed to allocate touch ownership events\n"); |
| 1029 | |
| 1030 | nev = GetTouchOwnershipEvents(events, dev, ti, mode, |
| 1031 | ti->listeners[0].listener, 0); |
| 1032 | BUG_WARN_MSG(nev == 0, "Failed to get touch ownership events\n"); |
| 1033 | |
| 1034 | for (i = 0; i < nev; i++) |
| 1035 | mieqProcessDeviceEvent(dev, events + i, NULL); |
| 1036 | |
| 1037 | FreeEventList(events, GetMaximumEventsNum()); |
| 1038 | |
| 1039 | return nev ? Success : BadMatch; |
| 1040 | } |
| 1041 | |
| 1042 | int |
| 1043 | TouchAcceptReject(ClientPtr client, DeviceIntPtr dev, int mode, |
| 1044 | uint32_t touchid, Window grab_window, XID *error) |
| 1045 | { |
| 1046 | TouchPointInfoPtr ti; |
| 1047 | int i; |
| 1048 | |
| 1049 | if (!dev->touch) { |
| 1050 | *error = dev->id; |
| 1051 | return BadDevice; |
| 1052 | } |
| 1053 | |
| 1054 | ti = TouchFindByClientID(dev, touchid); |
| 1055 | if (!ti) { |
| 1056 | *error = touchid; |
| 1057 | return BadValue; |
| 1058 | } |
| 1059 | |
| 1060 | for (i = 0; i < ti->num_listeners; i++) { |
| 1061 | if (CLIENT_ID(ti->listeners[i].listener) == client->index && |
| 1062 | ti->listeners[i].window->drawable.id == grab_window) |
| 1063 | break; |
| 1064 | } |
| 1065 | if (i == ti->num_listeners) |
| 1066 | return BadAccess; |
| 1067 | |
| 1068 | return TouchListenerAcceptReject(dev, ti, i, mode); |
| 1069 | } |
| 1070 | |
| 1071 | /** |
| 1072 | * End physically active touches for a device. |
| 1073 | */ |
| 1074 | void |
| 1075 | TouchEndPhysicallyActiveTouches(DeviceIntPtr dev) |
| 1076 | { |
| 1077 | InternalEvent *eventlist = InitEventList(GetMaximumEventsNum()); |
| 1078 | int i; |
| 1079 | |
| 1080 | OsBlockSignals(); |
| 1081 | mieqProcessInputEvents(); |
| 1082 | for (i = 0; i < dev->last.num_touches; i++) { |
| 1083 | DDXTouchPointInfoPtr ddxti = dev->last.touches + i; |
| 1084 | |
| 1085 | if (ddxti->active) { |
| 1086 | int j; |
| 1087 | int nevents = GetTouchEvents(eventlist, dev, ddxti->ddx_id, |
| 1088 | XI_TouchEnd, 0, NULL); |
| 1089 | |
| 1090 | for (j = 0; j < nevents; j++) |
| 1091 | mieqProcessDeviceEvent(dev, eventlist + j, NULL); |
| 1092 | } |
| 1093 | } |
| 1094 | OsReleaseSignals(); |
| 1095 | |
| 1096 | FreeEventList(eventlist, GetMaximumEventsNum()); |
| 1097 | } |
| 1098 | |
| 1099 | /** |
| 1100 | * Generate and deliver a TouchEnd event. |
| 1101 | * |
| 1102 | * @param dev The device to deliver the event for. |
| 1103 | * @param ti The touch point record to deliver the event for. |
| 1104 | * @param flags Internal event flags. The called does not need to provide |
| 1105 | * TOUCH_CLIENT_ID and TOUCH_POINTER_EMULATED, this function will ensure |
| 1106 | * they are set appropriately. |
| 1107 | * @param resource The client resource to deliver to, or 0 for all clients. |
| 1108 | */ |
| 1109 | void |
| 1110 | TouchEmitTouchEnd(DeviceIntPtr dev, TouchPointInfoPtr ti, int flags, XID resource) |
| 1111 | { |
| 1112 | InternalEvent event; |
| 1113 | |
| 1114 | /* We're not processing a touch end for a frozen device */ |
| 1115 | if (dev->deviceGrab.sync.frozen) |
| 1116 | return; |
| 1117 | |
| 1118 | flags |= TOUCH_CLIENT_ID; |
| 1119 | if (ti->emulate_pointer) |
| 1120 | flags |= TOUCH_POINTER_EMULATED; |
| 1121 | TouchDeliverDeviceClassesChangedEvent(ti, GetTimeInMillis(), resource); |
| 1122 | GetDixTouchEnd(&event, dev, ti, flags); |
| 1123 | DeliverTouchEvents(dev, ti, &event, resource); |
| 1124 | if (ti->num_grabs == 0) |
| 1125 | UpdateDeviceState(dev, &event.device_event); |
| 1126 | } |
| 1127 | |
| 1128 | void |
| 1129 | TouchAcceptAndEnd(DeviceIntPtr dev, int touchid) |
| 1130 | { |
| 1131 | TouchPointInfoPtr ti = TouchFindByClientID(dev, touchid); |
| 1132 | if (!ti) |
| 1133 | return; |
| 1134 | |
| 1135 | TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch); |
| 1136 | if (ti->pending_finish) |
| 1137 | TouchEmitTouchEnd(dev, ti, 0, 0); |
| 1138 | if (ti->num_listeners <= 1) |
| 1139 | TouchEndTouch(dev, ti); |
| 1140 | } |