| 1 | /************************************************************ |
| 2 | |
| 3 | Copyright 1989, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included in |
| 12 | all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | Except as contained in this notice, the name of The Open Group shall not be |
| 22 | used in advertising or otherwise to promote the sale, use or other dealings |
| 23 | in this Software without prior written authorization from The Open Group. |
| 24 | |
| 25 | Copyright 1989 by Hewlett-Packard Company, Palo Alto, California. |
| 26 | |
| 27 | All Rights Reserved |
| 28 | |
| 29 | Permission to use, copy, modify, and distribute this software and its |
| 30 | documentation for any purpose and without fee is hereby granted, |
| 31 | provided that the above copyright notice appear in all copies and that |
| 32 | both that copyright notice and this permission notice appear in |
| 33 | supporting documentation, and that the name of Hewlett-Packard not be |
| 34 | used in advertising or publicity pertaining to distribution of the |
| 35 | software without specific, written prior permission. |
| 36 | |
| 37 | HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 39 | HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 43 | SOFTWARE. |
| 44 | |
| 45 | ********************************************************/ |
| 46 | |
| 47 | /* |
| 48 | * Copyright © 2010 Collabora Ltd. |
| 49 | * Copyright © 2011 Red Hat, Inc. |
| 50 | * |
| 51 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 52 | * copy of this software and associated documentation files (the "Software"), |
| 53 | * to deal in the Software without restriction, including without limitation |
| 54 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 55 | * and/or sell copies of the Software, and to permit persons to whom the |
| 56 | * Software is furnished to do so, subject to the following conditions: |
| 57 | * |
| 58 | * The above copyright notice and this permission notice (including the next |
| 59 | * paragraph) shall be included in all copies or substantial portions of the |
| 60 | * Software. |
| 61 | * |
| 62 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 63 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 64 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 65 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 66 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 67 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 68 | * DEALINGS IN THE SOFTWARE. |
| 69 | * |
| 70 | * Author: Daniel Stone <daniel@fooishbar.org> |
| 71 | */ |
| 72 | |
| 73 | /******************************************************************** |
| 74 | * |
| 75 | * Routines to register and initialize extension input devices. |
| 76 | * This also contains ProcessOtherEvent, the routine called from DDX |
| 77 | * to route extension events. |
| 78 | * |
| 79 | */ |
| 80 | |
| 81 | #ifdef HAVE_DIX_CONFIG_H |
| 82 | #include <dix-config.h> |
| 83 | #endif |
| 84 | |
| 85 | #include "inputstr.h" |
| 86 | #include <X11/X.h> |
| 87 | #include <X11/Xproto.h> |
| 88 | #include <X11/extensions/XI.h> |
| 89 | #include <X11/extensions/XIproto.h> |
| 90 | #include <X11/extensions/XI2proto.h> |
| 91 | #include <X11/extensions/geproto.h> |
| 92 | #include "windowstr.h" |
| 93 | #include "miscstruct.h" |
| 94 | #include "region.h" |
| 95 | #include "exevents.h" |
| 96 | #include "extnsionst.h" |
| 97 | #include "exglobals.h" |
| 98 | #include "dixevents.h" /* DeliverFocusedEvent */ |
| 99 | #include "dixgrabs.h" /* CreateGrab() */ |
| 100 | #include "scrnintstr.h" |
| 101 | #include "listdev.h" /* for CopySwapXXXClass */ |
| 102 | #include "xace.h" |
| 103 | #include "xiquerydevice.h" /* For List*Info */ |
| 104 | #include "eventconvert.h" |
| 105 | #include "eventstr.h" |
| 106 | #include "inpututils.h" |
| 107 | #include "mi.h" |
| 108 | |
| 109 | #include <X11/extensions/XKBproto.h> |
| 110 | #include "xkbsrv.h" |
| 111 | |
| 112 | #define WID(w) ((w) ? ((w)->drawable.id) : 0) |
| 113 | #define AllModifiersMask ( \ |
| 114 | ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \ |
| 115 | Mod3Mask | Mod4Mask | Mod5Mask ) |
| 116 | #define AllButtonsMask ( \ |
| 117 | Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask ) |
| 118 | |
| 119 | Bool ShouldFreeInputMasks(WindowPtr /* pWin */ , |
| 120 | Bool /* ignoreSelectedEvents */ |
| 121 | ); |
| 122 | static Bool MakeInputMasks(WindowPtr /* pWin */ |
| 123 | ); |
| 124 | |
| 125 | /* |
| 126 | * Only let the given client know of core events which will affect its |
| 127 | * interpretation of input events, if the client's ClientPointer (or the |
| 128 | * paired keyboard) is the current device. |
| 129 | */ |
| 130 | int |
| 131 | XIShouldNotify(ClientPtr client, DeviceIntPtr dev) |
| 132 | { |
| 133 | DeviceIntPtr current_ptr = PickPointer(client); |
| 134 | DeviceIntPtr current_kbd = GetMaster(current_ptr, KEYBOARD_OR_FLOAT); |
| 135 | |
| 136 | if (dev == current_kbd || dev == current_ptr) |
| 137 | return 1; |
| 138 | |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | Bool |
| 143 | IsPointerEvent(InternalEvent *event) |
| 144 | { |
| 145 | switch (event->any.type) { |
| 146 | case ET_ButtonPress: |
| 147 | case ET_ButtonRelease: |
| 148 | case ET_Motion: |
| 149 | /* XXX: enter/leave ?? */ |
| 150 | return TRUE; |
| 151 | default: |
| 152 | break; |
| 153 | } |
| 154 | return FALSE; |
| 155 | } |
| 156 | |
| 157 | Bool |
| 158 | IsTouchEvent(InternalEvent *event) |
| 159 | { |
| 160 | switch (event->any.type) { |
| 161 | case ET_TouchBegin: |
| 162 | case ET_TouchUpdate: |
| 163 | case ET_TouchEnd: |
| 164 | return TRUE; |
| 165 | default: |
| 166 | break; |
| 167 | } |
| 168 | return FALSE; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * @return the device matching the deviceid of the device set in the event, or |
| 173 | * NULL if the event is not an XInput event. |
| 174 | */ |
| 175 | DeviceIntPtr |
| 176 | XIGetDevice(xEvent *xE) |
| 177 | { |
| 178 | DeviceIntPtr pDev = NULL; |
| 179 | |
| 180 | if (xE->u.u.type == DeviceButtonPress || |
| 181 | xE->u.u.type == DeviceButtonRelease || |
| 182 | xE->u.u.type == DeviceMotionNotify || |
| 183 | xE->u.u.type == ProximityIn || |
| 184 | xE->u.u.type == ProximityOut || xE->u.u.type == DevicePropertyNotify) { |
| 185 | int rc; |
| 186 | int id; |
| 187 | |
| 188 | id = ((deviceKeyButtonPointer *) xE)->deviceid & ~MORE_EVENTS; |
| 189 | |
| 190 | rc = dixLookupDevice(&pDev, id, serverClient, DixUnknownAccess); |
| 191 | if (rc != Success) |
| 192 | ErrorF("[dix] XIGetDevice failed on XACE restrictions (%d)\n", rc); |
| 193 | } |
| 194 | return pDev; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Copy the device->key into master->key and send a mapping notify to the |
| 199 | * clients if appropriate. |
| 200 | * master->key needs to be allocated by the caller. |
| 201 | * |
| 202 | * Device is the slave device. If it is attached to a master device, we may |
| 203 | * need to send a mapping notify to the client because it causes the MD |
| 204 | * to change state. |
| 205 | * |
| 206 | * Mapping notify needs to be sent in the following cases: |
| 207 | * - different slave device on same master |
| 208 | * - different master |
| 209 | * |
| 210 | * XXX: They way how the code is we also send a map notify if the slave device |
| 211 | * stays the same, but the master changes. This isn't really necessary though. |
| 212 | * |
| 213 | * XXX: this gives you funny behaviour with the ClientPointer. When a |
| 214 | * MappingNotify is sent to the client, the client usually responds with a |
| 215 | * GetKeyboardMapping. This will retrieve the ClientPointer's keyboard |
| 216 | * mapping, regardless of which keyboard sent the last mapping notify request. |
| 217 | * So depending on the CP setting, your keyboard may change layout in each |
| 218 | * app... |
| 219 | * |
| 220 | * This code is basically the old SwitchCoreKeyboard. |
| 221 | */ |
| 222 | |
| 223 | void |
| 224 | CopyKeyClass(DeviceIntPtr device, DeviceIntPtr master) |
| 225 | { |
| 226 | KeyClassPtr mk = master->key; |
| 227 | |
| 228 | if (device == master) |
| 229 | return; |
| 230 | |
| 231 | mk->sourceid = device->id; |
| 232 | |
| 233 | if (!XkbCopyDeviceKeymap(master, device)) |
| 234 | FatalError("Couldn't pivot keymap from device to core!\n"); |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * Copies the feedback classes from device "from" into device "to". Classes |
| 239 | * are duplicated (not just flipping the pointers). All feedback classes are |
| 240 | * linked lists, the full list is duplicated. |
| 241 | */ |
| 242 | static void |
| 243 | DeepCopyFeedbackClasses(DeviceIntPtr from, DeviceIntPtr to) |
| 244 | { |
| 245 | ClassesPtr classes; |
| 246 | |
| 247 | if (from->intfeed) { |
| 248 | IntegerFeedbackPtr *i, it; |
| 249 | |
| 250 | if (!to->intfeed) { |
| 251 | classes = to->unused_classes; |
| 252 | to->intfeed = classes->intfeed; |
| 253 | classes->intfeed = NULL; |
| 254 | } |
| 255 | |
| 256 | i = &to->intfeed; |
| 257 | for (it = from->intfeed; it; it = it->next) { |
| 258 | if (!(*i)) { |
| 259 | *i = calloc(1, sizeof(IntegerFeedbackClassRec)); |
| 260 | if (!(*i)) { |
| 261 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 262 | return; |
| 263 | } |
| 264 | } |
| 265 | (*i)->CtrlProc = it->CtrlProc; |
| 266 | (*i)->ctrl = it->ctrl; |
| 267 | |
| 268 | i = &(*i)->next; |
| 269 | } |
| 270 | } |
| 271 | else if (to->intfeed && !from->intfeed) { |
| 272 | classes = to->unused_classes; |
| 273 | classes->intfeed = to->intfeed; |
| 274 | to->intfeed = NULL; |
| 275 | } |
| 276 | |
| 277 | if (from->stringfeed) { |
| 278 | StringFeedbackPtr *s, it; |
| 279 | |
| 280 | if (!to->stringfeed) { |
| 281 | classes = to->unused_classes; |
| 282 | to->stringfeed = classes->stringfeed; |
| 283 | classes->stringfeed = NULL; |
| 284 | } |
| 285 | |
| 286 | s = &to->stringfeed; |
| 287 | for (it = from->stringfeed; it; it = it->next) { |
| 288 | if (!(*s)) { |
| 289 | *s = calloc(1, sizeof(StringFeedbackClassRec)); |
| 290 | if (!(*s)) { |
| 291 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 292 | return; |
| 293 | } |
| 294 | } |
| 295 | (*s)->CtrlProc = it->CtrlProc; |
| 296 | (*s)->ctrl = it->ctrl; |
| 297 | |
| 298 | s = &(*s)->next; |
| 299 | } |
| 300 | } |
| 301 | else if (to->stringfeed && !from->stringfeed) { |
| 302 | classes = to->unused_classes; |
| 303 | classes->stringfeed = to->stringfeed; |
| 304 | to->stringfeed = NULL; |
| 305 | } |
| 306 | |
| 307 | if (from->bell) { |
| 308 | BellFeedbackPtr *b, it; |
| 309 | |
| 310 | if (!to->bell) { |
| 311 | classes = to->unused_classes; |
| 312 | to->bell = classes->bell; |
| 313 | classes->bell = NULL; |
| 314 | } |
| 315 | |
| 316 | b = &to->bell; |
| 317 | for (it = from->bell; it; it = it->next) { |
| 318 | if (!(*b)) { |
| 319 | *b = calloc(1, sizeof(BellFeedbackClassRec)); |
| 320 | if (!(*b)) { |
| 321 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 322 | return; |
| 323 | } |
| 324 | } |
| 325 | (*b)->BellProc = it->BellProc; |
| 326 | (*b)->CtrlProc = it->CtrlProc; |
| 327 | (*b)->ctrl = it->ctrl; |
| 328 | |
| 329 | b = &(*b)->next; |
| 330 | } |
| 331 | } |
| 332 | else if (to->bell && !from->bell) { |
| 333 | classes = to->unused_classes; |
| 334 | classes->bell = to->bell; |
| 335 | to->bell = NULL; |
| 336 | } |
| 337 | |
| 338 | if (from->leds) { |
| 339 | LedFeedbackPtr *l, it; |
| 340 | |
| 341 | if (!to->leds) { |
| 342 | classes = to->unused_classes; |
| 343 | to->leds = classes->leds; |
| 344 | classes->leds = NULL; |
| 345 | } |
| 346 | |
| 347 | l = &to->leds; |
| 348 | for (it = from->leds; it; it = it->next) { |
| 349 | if (!(*l)) { |
| 350 | *l = calloc(1, sizeof(LedFeedbackClassRec)); |
| 351 | if (!(*l)) { |
| 352 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 353 | return; |
| 354 | } |
| 355 | } |
| 356 | (*l)->CtrlProc = it->CtrlProc; |
| 357 | (*l)->ctrl = it->ctrl; |
| 358 | if ((*l)->xkb_sli) |
| 359 | XkbFreeSrvLedInfo((*l)->xkb_sli); |
| 360 | (*l)->xkb_sli = XkbCopySrvLedInfo(from, it->xkb_sli, NULL, *l); |
| 361 | |
| 362 | l = &(*l)->next; |
| 363 | } |
| 364 | } |
| 365 | else if (to->leds && !from->leds) { |
| 366 | classes = to->unused_classes; |
| 367 | classes->leds = to->leds; |
| 368 | to->leds = NULL; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | static void |
| 373 | DeepCopyKeyboardClasses(DeviceIntPtr from, DeviceIntPtr to) |
| 374 | { |
| 375 | ClassesPtr classes; |
| 376 | |
| 377 | /* XkbInitDevice (->XkbInitIndicatorMap->XkbFindSrvLedInfo) relies on the |
| 378 | * kbdfeed to be set up properly, so let's do the feedback classes first. |
| 379 | */ |
| 380 | if (from->kbdfeed) { |
| 381 | KbdFeedbackPtr *k, it; |
| 382 | |
| 383 | if (!to->kbdfeed) { |
| 384 | classes = to->unused_classes; |
| 385 | |
| 386 | to->kbdfeed = classes->kbdfeed; |
| 387 | if (!to->kbdfeed) |
| 388 | InitKeyboardDeviceStruct(to, NULL, NULL, NULL); |
| 389 | classes->kbdfeed = NULL; |
| 390 | } |
| 391 | |
| 392 | k = &to->kbdfeed; |
| 393 | for (it = from->kbdfeed; it; it = it->next) { |
| 394 | if (!(*k)) { |
| 395 | *k = calloc(1, sizeof(KbdFeedbackClassRec)); |
| 396 | if (!*k) { |
| 397 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 398 | return; |
| 399 | } |
| 400 | } |
| 401 | (*k)->BellProc = it->BellProc; |
| 402 | (*k)->CtrlProc = it->CtrlProc; |
| 403 | (*k)->ctrl = it->ctrl; |
| 404 | if ((*k)->xkb_sli) |
| 405 | XkbFreeSrvLedInfo((*k)->xkb_sli); |
| 406 | (*k)->xkb_sli = XkbCopySrvLedInfo(from, it->xkb_sli, *k, NULL); |
| 407 | |
| 408 | k = &(*k)->next; |
| 409 | } |
| 410 | } |
| 411 | else if (to->kbdfeed && !from->kbdfeed) { |
| 412 | classes = to->unused_classes; |
| 413 | classes->kbdfeed = to->kbdfeed; |
| 414 | to->kbdfeed = NULL; |
| 415 | } |
| 416 | |
| 417 | if (from->key) { |
| 418 | if (!to->key) { |
| 419 | classes = to->unused_classes; |
| 420 | to->key = classes->key; |
| 421 | if (!to->key) |
| 422 | InitKeyboardDeviceStruct(to, NULL, NULL, NULL); |
| 423 | else |
| 424 | classes->key = NULL; |
| 425 | } |
| 426 | |
| 427 | CopyKeyClass(from, to); |
| 428 | } |
| 429 | else if (to->key && !from->key) { |
| 430 | classes = to->unused_classes; |
| 431 | classes->key = to->key; |
| 432 | to->key = NULL; |
| 433 | } |
| 434 | |
| 435 | /* If a SrvLedInfoPtr's flags are XkbSLI_IsDefault, the names and maps |
| 436 | * pointer point into the xkbInfo->desc struct. XkbCopySrvLedInfo |
| 437 | * didn't update the pointers so we need to do it manually here. |
| 438 | */ |
| 439 | if (to->kbdfeed) { |
| 440 | KbdFeedbackPtr k; |
| 441 | |
| 442 | for (k = to->kbdfeed; k; k = k->next) { |
| 443 | if (!k->xkb_sli) |
| 444 | continue; |
| 445 | if (k->xkb_sli->flags & XkbSLI_IsDefault) { |
| 446 | k->xkb_sli->names = to->key->xkbInfo->desc->names->indicators; |
| 447 | k->xkb_sli->maps = to->key->xkbInfo->desc->indicators->maps; |
| 448 | } |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | /* We can't just copy over the focus class. When an app sets the focus, |
| 453 | * it'll do so on the master device. Copying the SDs focus means losing |
| 454 | * the focus. |
| 455 | * So we only copy the focus class if the device didn't have one, |
| 456 | * otherwise we leave it as it is. |
| 457 | */ |
| 458 | if (from->focus) { |
| 459 | if (!to->focus) { |
| 460 | WindowPtr *oldTrace; |
| 461 | |
| 462 | classes = to->unused_classes; |
| 463 | to->focus = classes->focus; |
| 464 | if (!to->focus) { |
| 465 | to->focus = calloc(1, sizeof(FocusClassRec)); |
| 466 | if (!to->focus) |
| 467 | FatalError("[Xi] no memory for class shift.\n"); |
| 468 | } |
| 469 | else |
| 470 | classes->focus = NULL; |
| 471 | |
| 472 | oldTrace = to->focus->trace; |
| 473 | memcpy(to->focus, from->focus, sizeof(FocusClassRec)); |
| 474 | to->focus->trace = realloc(oldTrace, |
| 475 | to->focus->traceSize * |
| 476 | sizeof(WindowPtr)); |
| 477 | if (!to->focus->trace && to->focus->traceSize) |
| 478 | FatalError("[Xi] no memory for trace.\n"); |
| 479 | memcpy(to->focus->trace, from->focus->trace, |
| 480 | from->focus->traceSize * sizeof(WindowPtr)); |
| 481 | to->focus->sourceid = from->id; |
| 482 | } |
| 483 | } |
| 484 | else if (to->focus) { |
| 485 | classes = to->unused_classes; |
| 486 | classes->focus = to->focus; |
| 487 | to->focus = NULL; |
| 488 | } |
| 489 | |
| 490 | } |
| 491 | |
| 492 | /* FIXME: this should really be shared with the InitValuatorAxisClassRec and |
| 493 | * similar */ |
| 494 | static void |
| 495 | DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to) |
| 496 | { |
| 497 | ClassesPtr classes; |
| 498 | |
| 499 | /* Feedback classes must be copied first */ |
| 500 | if (from->ptrfeed) { |
| 501 | PtrFeedbackPtr *p, it; |
| 502 | |
| 503 | if (!to->ptrfeed) { |
| 504 | classes = to->unused_classes; |
| 505 | to->ptrfeed = classes->ptrfeed; |
| 506 | classes->ptrfeed = NULL; |
| 507 | } |
| 508 | |
| 509 | p = &to->ptrfeed; |
| 510 | for (it = from->ptrfeed; it; it = it->next) { |
| 511 | if (!(*p)) { |
| 512 | *p = calloc(1, sizeof(PtrFeedbackClassRec)); |
| 513 | if (!*p) { |
| 514 | ErrorF("[Xi] Cannot alloc memory for class copy."); |
| 515 | return; |
| 516 | } |
| 517 | } |
| 518 | (*p)->CtrlProc = it->CtrlProc; |
| 519 | (*p)->ctrl = it->ctrl; |
| 520 | |
| 521 | p = &(*p)->next; |
| 522 | } |
| 523 | } |
| 524 | else if (to->ptrfeed && !from->ptrfeed) { |
| 525 | classes = to->unused_classes; |
| 526 | classes->ptrfeed = to->ptrfeed; |
| 527 | to->ptrfeed = NULL; |
| 528 | } |
| 529 | |
| 530 | if (from->valuator) { |
| 531 | ValuatorClassPtr v; |
| 532 | |
| 533 | if (!to->valuator) { |
| 534 | classes = to->unused_classes; |
| 535 | to->valuator = classes->valuator; |
| 536 | if (to->valuator) |
| 537 | classes->valuator = NULL; |
| 538 | } |
| 539 | |
| 540 | v = AllocValuatorClass(to->valuator, from->valuator->numAxes); |
| 541 | |
| 542 | if (!v) |
| 543 | FatalError("[Xi] no memory for class shift.\n"); |
| 544 | |
| 545 | to->valuator = v; |
| 546 | memcpy(v->axes, from->valuator->axes, v->numAxes * sizeof(AxisInfo)); |
| 547 | |
| 548 | v->sourceid = from->id; |
| 549 | } |
| 550 | else if (to->valuator && !from->valuator) { |
| 551 | classes = to->unused_classes; |
| 552 | classes->valuator = to->valuator; |
| 553 | to->valuator = NULL; |
| 554 | } |
| 555 | |
| 556 | if (from->button) { |
| 557 | if (!to->button) { |
| 558 | classes = to->unused_classes; |
| 559 | to->button = classes->button; |
| 560 | if (!to->button) { |
| 561 | to->button = calloc(1, sizeof(ButtonClassRec)); |
| 562 | if (!to->button) |
| 563 | FatalError("[Xi] no memory for class shift.\n"); |
| 564 | } |
| 565 | else |
| 566 | classes->button = NULL; |
| 567 | } |
| 568 | |
| 569 | if (from->button->xkb_acts) { |
| 570 | if (!to->button->xkb_acts) { |
| 571 | to->button->xkb_acts = calloc(1, sizeof(XkbAction)); |
| 572 | if (!to->button->xkb_acts) |
| 573 | FatalError("[Xi] not enough memory for xkb_acts.\n"); |
| 574 | } |
| 575 | memcpy(to->button->xkb_acts, from->button->xkb_acts, |
| 576 | sizeof(XkbAction)); |
| 577 | } |
| 578 | else |
| 579 | free(to->button->xkb_acts); |
| 580 | |
| 581 | memcpy(to->button->labels, from->button->labels, |
| 582 | from->button->numButtons * sizeof(Atom)); |
| 583 | to->button->sourceid = from->id; |
| 584 | } |
| 585 | else if (to->button && !from->button) { |
| 586 | classes = to->unused_classes; |
| 587 | classes->button = to->button; |
| 588 | to->button = NULL; |
| 589 | } |
| 590 | |
| 591 | if (from->proximity) { |
| 592 | if (!to->proximity) { |
| 593 | classes = to->unused_classes; |
| 594 | to->proximity = classes->proximity; |
| 595 | if (!to->proximity) { |
| 596 | to->proximity = calloc(1, sizeof(ProximityClassRec)); |
| 597 | if (!to->proximity) |
| 598 | FatalError("[Xi] no memory for class shift.\n"); |
| 599 | } |
| 600 | else |
| 601 | classes->proximity = NULL; |
| 602 | } |
| 603 | memcpy(to->proximity, from->proximity, sizeof(ProximityClassRec)); |
| 604 | to->proximity->sourceid = from->id; |
| 605 | } |
| 606 | else if (to->proximity) { |
| 607 | classes = to->unused_classes; |
| 608 | classes->proximity = to->proximity; |
| 609 | to->proximity = NULL; |
| 610 | } |
| 611 | |
| 612 | if (from->touch) { |
| 613 | TouchClassPtr t, f; |
| 614 | |
| 615 | if (!to->touch) { |
| 616 | classes = to->unused_classes; |
| 617 | to->touch = classes->touch; |
| 618 | if (!to->touch) { |
| 619 | int i; |
| 620 | |
| 621 | to->touch = calloc(1, sizeof(TouchClassRec)); |
| 622 | if (!to->touch) |
| 623 | FatalError("[Xi] no memory for class shift.\n"); |
| 624 | to->touch->num_touches = from->touch->num_touches; |
| 625 | to->touch->touches = calloc(to->touch->num_touches, |
| 626 | sizeof(TouchPointInfoRec)); |
| 627 | for (i = 0; i < to->touch->num_touches; i++) |
| 628 | TouchInitTouchPoint(to->touch, to->valuator, i); |
| 629 | if (!to->touch) |
| 630 | FatalError("[Xi] no memory for class shift.\n"); |
| 631 | } |
| 632 | else |
| 633 | classes->touch = NULL; |
| 634 | } |
| 635 | |
| 636 | t = to->touch; |
| 637 | f = from->touch; |
| 638 | t->sourceid = f->sourceid; |
| 639 | t->max_touches = f->max_touches; |
| 640 | t->mode = f->mode; |
| 641 | t->buttonsDown = f->buttonsDown; |
| 642 | t->state = f->state; |
| 643 | t->motionMask = f->motionMask; |
| 644 | /* to->touches and to->num_touches are separate on the master, |
| 645 | * don't copy */ |
| 646 | } |
| 647 | /* Don't remove touch class if from->touch is non-existent. The to device |
| 648 | * may have an active touch grab, so we need to keep the touch class record |
| 649 | * around. */ |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * Copies the CONTENT of the classes of device from into the classes in device |
| 654 | * to. From and to are identical after finishing. |
| 655 | * |
| 656 | * If to does not have classes from currenly has, the classes are stored in |
| 657 | * to's devPrivates system. Later, we recover it again from there if needed. |
| 658 | * Saves a few memory allocations. |
| 659 | */ |
| 660 | void |
| 661 | DeepCopyDeviceClasses(DeviceIntPtr from, DeviceIntPtr to, |
| 662 | DeviceChangedEvent *dce) |
| 663 | { |
| 664 | /* generic feedback classes, not tied to pointer and/or keyboard */ |
| 665 | DeepCopyFeedbackClasses(from, to); |
| 666 | |
| 667 | if ((dce->flags & DEVCHANGE_KEYBOARD_EVENT)) |
| 668 | DeepCopyKeyboardClasses(from, to); |
| 669 | if ((dce->flags & DEVCHANGE_POINTER_EVENT)) |
| 670 | DeepCopyPointerClasses(from, to); |
| 671 | } |
| 672 | |
| 673 | /** |
| 674 | * Send an XI2 DeviceChangedEvent to all interested clients. |
| 675 | */ |
| 676 | void |
| 677 | XISendDeviceChangedEvent(DeviceIntPtr device, DeviceChangedEvent *dce) |
| 678 | { |
| 679 | xXIDeviceChangedEvent *dcce; |
| 680 | int rc; |
| 681 | |
| 682 | rc = EventToXI2((InternalEvent *) dce, (xEvent **) &dcce); |
| 683 | if (rc != Success) { |
| 684 | ErrorF("[Xi] event conversion from DCE failed with code %d\n", rc); |
| 685 | return; |
| 686 | } |
| 687 | |
| 688 | /* we don't actually swap if there's a NullClient, swapping is done |
| 689 | * later when event is delivered. */ |
| 690 | SendEventToAllWindows(device, XI_DeviceChangedMask, (xEvent *) dcce, 1); |
| 691 | free(dcce); |
| 692 | } |
| 693 | |
| 694 | static void |
| 695 | ChangeMasterDeviceClasses(DeviceIntPtr device, DeviceChangedEvent *dce) |
| 696 | { |
| 697 | DeviceIntPtr slave; |
| 698 | int rc; |
| 699 | |
| 700 | /* For now, we don't have devices that change physically. */ |
| 701 | if (!IsMaster(device)) |
| 702 | return; |
| 703 | |
| 704 | rc = dixLookupDevice(&slave, dce->sourceid, serverClient, DixReadAccess); |
| 705 | |
| 706 | if (rc != Success) |
| 707 | return; /* Device has disappeared */ |
| 708 | |
| 709 | if (IsMaster(slave)) |
| 710 | return; |
| 711 | |
| 712 | if (IsFloating(slave)) |
| 713 | return; /* set floating since the event */ |
| 714 | |
| 715 | if (GetMaster(slave, MASTER_ATTACHED)->id != dce->masterid) |
| 716 | return; /* not our slave anymore, don't care */ |
| 717 | |
| 718 | /* FIXME: we probably need to send a DCE for the new slave now */ |
| 719 | |
| 720 | device->public.devicePrivate = slave->public.devicePrivate; |
| 721 | |
| 722 | /* FIXME: the classes may have changed since we generated the event. */ |
| 723 | DeepCopyDeviceClasses(slave, device, dce); |
| 724 | dce->deviceid = device->id; |
| 725 | XISendDeviceChangedEvent(device, dce); |
| 726 | } |
| 727 | |
| 728 | /** |
| 729 | * Add state and motionMask to the filter for this event. The protocol |
| 730 | * supports some extra masks for motion when a button is down: |
| 731 | * ButtonXMotionMask and the DeviceButtonMotionMask to trigger only when at |
| 732 | * least one button (or that specific button is down). These masks need to |
| 733 | * be added to the filters for core/XI motion events. |
| 734 | * |
| 735 | * @param device The device to update the mask for |
| 736 | * @param state The current button state mask |
| 737 | * @param motion_mask The motion mask (DeviceButtonMotionMask or 0) |
| 738 | */ |
| 739 | static void |
| 740 | UpdateDeviceMotionMask(DeviceIntPtr device, unsigned short state, |
| 741 | Mask motion_mask) |
| 742 | { |
| 743 | Mask mask; |
| 744 | |
| 745 | mask = DevicePointerMotionMask | state | motion_mask; |
| 746 | SetMaskForEvent(device->id, mask, DeviceMotionNotify); |
| 747 | mask = PointerMotionMask | state | motion_mask; |
| 748 | SetMaskForEvent(device->id, mask, MotionNotify); |
| 749 | } |
| 750 | |
| 751 | static void |
| 752 | IncreaseButtonCount(DeviceIntPtr dev, int key, CARD8 *buttons_down, |
| 753 | Mask *motion_mask, unsigned short *state) |
| 754 | { |
| 755 | if (dev->valuator) |
| 756 | dev->valuator->motionHintWindow = NullWindow; |
| 757 | |
| 758 | (*buttons_down)++; |
| 759 | *motion_mask = DeviceButtonMotionMask; |
| 760 | if (dev->button->map[key] <= 5) |
| 761 | *state |= (Button1Mask >> 1) << dev->button->map[key]; |
| 762 | } |
| 763 | |
| 764 | static void |
| 765 | DecreaseButtonCount(DeviceIntPtr dev, int key, CARD8 *buttons_down, |
| 766 | Mask *motion_mask, unsigned short *state) |
| 767 | { |
| 768 | if (dev->valuator) |
| 769 | dev->valuator->motionHintWindow = NullWindow; |
| 770 | |
| 771 | if (*buttons_down >= 1 && !--(*buttons_down)) |
| 772 | *motion_mask = 0; |
| 773 | if (dev->button->map[key] <= 5) |
| 774 | *state &= ~((Button1Mask >> 1) << dev->button->map[key]); |
| 775 | } |
| 776 | |
| 777 | /** |
| 778 | * Update the device state according to the data in the event. |
| 779 | * |
| 780 | * return values are |
| 781 | * DEFAULT ... process as normal |
| 782 | * DONT_PROCESS ... return immediately from caller |
| 783 | */ |
| 784 | #define DEFAULT 0 |
| 785 | #define DONT_PROCESS 1 |
| 786 | int |
| 787 | UpdateDeviceState(DeviceIntPtr device, DeviceEvent *event) |
| 788 | { |
| 789 | int i; |
| 790 | int key = 0, last_valuator; |
| 791 | |
| 792 | KeyClassPtr k = NULL; |
| 793 | ButtonClassPtr b = NULL; |
| 794 | ValuatorClassPtr v = NULL; |
| 795 | TouchClassPtr t = NULL; |
| 796 | |
| 797 | /* This event is always the first we get, before the actual events with |
| 798 | * the data. However, the way how the DDX is set up, "device" will |
| 799 | * actually be the slave device that caused the event. |
| 800 | */ |
| 801 | switch (event->type) { |
| 802 | case ET_DeviceChanged: |
| 803 | ChangeMasterDeviceClasses(device, (DeviceChangedEvent *) event); |
| 804 | return DONT_PROCESS; /* event has been sent already */ |
| 805 | case ET_Motion: |
| 806 | case ET_ButtonPress: |
| 807 | case ET_ButtonRelease: |
| 808 | case ET_KeyPress: |
| 809 | case ET_KeyRelease: |
| 810 | case ET_ProximityIn: |
| 811 | case ET_ProximityOut: |
| 812 | case ET_TouchBegin: |
| 813 | case ET_TouchUpdate: |
| 814 | case ET_TouchEnd: |
| 815 | break; |
| 816 | default: |
| 817 | /* other events don't update the device */ |
| 818 | return DEFAULT; |
| 819 | } |
| 820 | |
| 821 | k = device->key; |
| 822 | v = device->valuator; |
| 823 | b = device->button; |
| 824 | t = device->touch; |
| 825 | |
| 826 | key = event->detail.key; |
| 827 | |
| 828 | /* Update device axis */ |
| 829 | /* Check valuators first */ |
| 830 | last_valuator = -1; |
| 831 | for (i = 0; i < MAX_VALUATORS; i++) { |
| 832 | if (BitIsOn(&event->valuators.mask, i)) { |
| 833 | if (!v) { |
| 834 | ErrorF("[Xi] Valuators reported for non-valuator device '%s'. " |
| 835 | "Ignoring event.\n", device->name); |
| 836 | return DONT_PROCESS; |
| 837 | } |
| 838 | else if (v->numAxes < i) { |
| 839 | ErrorF("[Xi] Too many valuators reported for device '%s'. " |
| 840 | "Ignoring event.\n", device->name); |
| 841 | return DONT_PROCESS; |
| 842 | } |
| 843 | last_valuator = i; |
| 844 | } |
| 845 | } |
| 846 | |
| 847 | for (i = 0; i <= last_valuator && i < v->numAxes; i++) { |
| 848 | /* XXX: Relative/Absolute mode */ |
| 849 | if (BitIsOn(&event->valuators.mask, i)) |
| 850 | v->axisVal[i] = event->valuators.data[i]; |
| 851 | } |
| 852 | |
| 853 | if (event->type == ET_KeyPress) { |
| 854 | if (!k) |
| 855 | return DONT_PROCESS; |
| 856 | |
| 857 | /* don't allow ddx to generate multiple downs, but repeats are okay */ |
| 858 | if (key_is_down(device, key, KEY_PROCESSED) && !event->key_repeat) |
| 859 | return DONT_PROCESS; |
| 860 | |
| 861 | if (device->valuator) |
| 862 | device->valuator->motionHintWindow = NullWindow; |
| 863 | set_key_down(device, key, KEY_PROCESSED); |
| 864 | } |
| 865 | else if (event->type == ET_KeyRelease) { |
| 866 | if (!k) |
| 867 | return DONT_PROCESS; |
| 868 | |
| 869 | if (!key_is_down(device, key, KEY_PROCESSED)) /* guard against duplicates */ |
| 870 | return DONT_PROCESS; |
| 871 | if (device->valuator) |
| 872 | device->valuator->motionHintWindow = NullWindow; |
| 873 | set_key_up(device, key, KEY_PROCESSED); |
| 874 | } |
| 875 | else if (event->type == ET_ButtonPress) { |
| 876 | if (!b) |
| 877 | return DONT_PROCESS; |
| 878 | |
| 879 | if (button_is_down(device, key, BUTTON_PROCESSED)) |
| 880 | return DONT_PROCESS; |
| 881 | |
| 882 | set_button_down(device, key, BUTTON_PROCESSED); |
| 883 | |
| 884 | if (!b->map[key]) |
| 885 | return DONT_PROCESS; |
| 886 | |
| 887 | IncreaseButtonCount(device, key, &b->buttonsDown, &b->motionMask, |
| 888 | &b->state); |
| 889 | UpdateDeviceMotionMask(device, b->state, b->motionMask); |
| 890 | } |
| 891 | else if (event->type == ET_ButtonRelease) { |
| 892 | if (!b) |
| 893 | return DONT_PROCESS; |
| 894 | |
| 895 | if (!button_is_down(device, key, BUTTON_PROCESSED)) |
| 896 | return DONT_PROCESS; |
| 897 | if (IsMaster(device)) { |
| 898 | DeviceIntPtr sd; |
| 899 | |
| 900 | /* |
| 901 | * Leave the button down if any slave has the |
| 902 | * button still down. Note that this depends on the |
| 903 | * event being delivered through the slave first |
| 904 | */ |
| 905 | for (sd = inputInfo.devices; sd; sd = sd->next) { |
| 906 | if (IsMaster(sd) || GetMaster(sd, MASTER_POINTER) != device) |
| 907 | continue; |
| 908 | if (!sd->button) |
| 909 | continue; |
| 910 | for (i = 1; i <= sd->button->numButtons; i++) |
| 911 | if (sd->button->map[i] == key && |
| 912 | button_is_down(sd, i, BUTTON_PROCESSED)) |
| 913 | return DONT_PROCESS; |
| 914 | } |
| 915 | } |
| 916 | set_button_up(device, key, BUTTON_PROCESSED); |
| 917 | if (!b->map[key]) |
| 918 | return DONT_PROCESS; |
| 919 | |
| 920 | DecreaseButtonCount(device, key, &b->buttonsDown, &b->motionMask, |
| 921 | &b->state); |
| 922 | UpdateDeviceMotionMask(device, b->state, b->motionMask); |
| 923 | } |
| 924 | else if (event->type == ET_ProximityIn) |
| 925 | device->proximity->in_proximity = TRUE; |
| 926 | else if (event->type == ET_ProximityOut) |
| 927 | device->proximity->in_proximity = FALSE; |
| 928 | else if (event->type == ET_TouchBegin) { |
| 929 | BUG_RETURN_VAL(!b || !v, DONT_PROCESS); |
| 930 | BUG_RETURN_VAL(!t, DONT_PROCESS); |
| 931 | |
| 932 | if (!b->map[key]) |
| 933 | return DONT_PROCESS; |
| 934 | |
| 935 | if (!(event->flags & TOUCH_POINTER_EMULATED) || |
| 936 | (event->flags & TOUCH_REPLAYING)) |
| 937 | return DONT_PROCESS; |
| 938 | |
| 939 | IncreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, |
| 940 | &t->state); |
| 941 | UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask); |
| 942 | } |
| 943 | else if (event->type == ET_TouchEnd) { |
| 944 | BUG_RETURN_VAL(!b || !v, DONT_PROCESS); |
| 945 | BUG_RETURN_VAL(!t, DONT_PROCESS); |
| 946 | |
| 947 | if (t->buttonsDown <= 0 || !b->map[key]) |
| 948 | return DONT_PROCESS; |
| 949 | |
| 950 | if (!(event->flags & TOUCH_POINTER_EMULATED)) |
| 951 | return DONT_PROCESS; |
| 952 | |
| 953 | DecreaseButtonCount(device, key, &t->buttonsDown, &t->motionMask, |
| 954 | &t->state); |
| 955 | UpdateDeviceMotionMask(device, t->state, DeviceButtonMotionMask); |
| 956 | } |
| 957 | |
| 958 | return DEFAULT; |
| 959 | } |
| 960 | |
| 961 | /** |
| 962 | * A client that does not have the TouchOwnership mask set may not receive a |
| 963 | * TouchBegin event if there is at least one grab active. |
| 964 | * |
| 965 | * @return TRUE if the client selected for ownership events on the given |
| 966 | * window for this device, FALSE otherwise |
| 967 | */ |
| 968 | static inline Bool |
| 969 | TouchClientWantsOwnershipEvents(ClientPtr client, DeviceIntPtr dev, |
| 970 | WindowPtr win) |
| 971 | { |
| 972 | InputClients *iclient; |
| 973 | |
| 974 | nt_list_for_each_entry(iclient, wOtherInputMasks(win)->inputClients, next) { |
| 975 | if (rClient(iclient) != client) |
| 976 | continue; |
| 977 | |
| 978 | return xi2mask_isset(iclient->xi2mask, dev, XI_TouchOwnership); |
| 979 | } |
| 980 | |
| 981 | return FALSE; |
| 982 | } |
| 983 | |
| 984 | static void |
| 985 | TouchSendOwnershipEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, int reason, |
| 986 | XID resource) |
| 987 | { |
| 988 | int nev, i; |
| 989 | InternalEvent *tel = InitEventList(GetMaximumEventsNum()); |
| 990 | |
| 991 | nev = GetTouchOwnershipEvents(tel, dev, ti, reason, resource, 0); |
| 992 | for (i = 0; i < nev; i++) |
| 993 | mieqProcessDeviceEvent(dev, tel + i, NULL); |
| 994 | |
| 995 | FreeEventList(tel, GetMaximumEventsNum()); |
| 996 | } |
| 997 | |
| 998 | /** |
| 999 | * Attempts to deliver a touch event to the given client. |
| 1000 | */ |
| 1001 | static Bool |
| 1002 | DeliverOneTouchEvent(ClientPtr client, DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1003 | GrabPtr grab, WindowPtr win, InternalEvent *ev) |
| 1004 | { |
| 1005 | int err; |
| 1006 | xEvent *xi2; |
| 1007 | Mask filter; |
| 1008 | Window child = DeepestSpriteWin(&ti->sprite)->drawable.id; |
| 1009 | |
| 1010 | /* FIXME: owner event handling */ |
| 1011 | |
| 1012 | /* If the client does not have the ownership mask set and is not |
| 1013 | * the current owner of the touch, only pretend we delivered */ |
| 1014 | if (!grab && ti->num_grabs != 0 && |
| 1015 | !TouchClientWantsOwnershipEvents(client, dev, win)) |
| 1016 | return TRUE; |
| 1017 | |
| 1018 | /* If we fail here, we're going to leave a client hanging. */ |
| 1019 | err = EventToXI2(ev, &xi2); |
| 1020 | if (err != Success) |
| 1021 | FatalError("[Xi] %s: XI2 conversion failed in %s" |
| 1022 | " (%d)\n", dev->name, __func__, err); |
| 1023 | |
| 1024 | FixUpEventFromWindow(&ti->sprite, xi2, win, child, FALSE); |
| 1025 | filter = GetEventFilter(dev, xi2); |
| 1026 | if (XaceHook(XACE_RECEIVE_ACCESS, client, win, xi2, 1) != Success) |
| 1027 | return FALSE; |
| 1028 | err = TryClientEvents(client, dev, xi2, 1, filter, filter, NullGrab); |
| 1029 | free(xi2); |
| 1030 | |
| 1031 | /* Returning the value from TryClientEvents isn't useful, since all our |
| 1032 | * resource-gone cleanups will update the delivery list anyway. */ |
| 1033 | return TRUE; |
| 1034 | } |
| 1035 | |
| 1036 | static void |
| 1037 | ActivateEarlyAccept(DeviceIntPtr dev, TouchPointInfoPtr ti) |
| 1038 | { |
| 1039 | ClientPtr client; |
| 1040 | XID error; |
| 1041 | GrabPtr grab = ti->listeners[0].grab; |
| 1042 | |
| 1043 | BUG_RETURN(ti->listeners[0].type != LISTENER_GRAB && |
| 1044 | ti->listeners[0].type != LISTENER_POINTER_GRAB); |
| 1045 | BUG_RETURN(!grab); |
| 1046 | |
| 1047 | client = rClient(grab); |
| 1048 | |
| 1049 | if (TouchAcceptReject(client, dev, XIAcceptTouch, ti->client_id, |
| 1050 | ti->listeners[0].window->drawable.id, &error) != Success) |
| 1051 | ErrorF("[Xi] Failed to accept touch grab after early acceptance.\n"); |
| 1052 | } |
| 1053 | |
| 1054 | /** |
| 1055 | * Find the oldest touch that still has a pointer emulation client. |
| 1056 | * |
| 1057 | * Pointer emulation can only be performed for the oldest touch. Otherwise, the |
| 1058 | * order of events seen by the client will be wrong. This function helps us find |
| 1059 | * the next touch to be emulated. |
| 1060 | * |
| 1061 | * @param dev The device to find touches for. |
| 1062 | */ |
| 1063 | static TouchPointInfoPtr |
| 1064 | FindOldestPointerEmulatedTouch(DeviceIntPtr dev) |
| 1065 | { |
| 1066 | TouchPointInfoPtr oldest = NULL; |
| 1067 | int i; |
| 1068 | |
| 1069 | for (i = 0; i < dev->touch->num_touches; i++) { |
| 1070 | TouchPointInfoPtr ti = dev->touch->touches + i; |
| 1071 | int j; |
| 1072 | |
| 1073 | if (!ti->active || !ti->emulate_pointer) |
| 1074 | continue; |
| 1075 | |
| 1076 | for (j = 0; j < ti->num_listeners; j++) { |
| 1077 | if (ti->listeners[j].type == LISTENER_POINTER_GRAB || |
| 1078 | ti->listeners[j].type == LISTENER_POINTER_REGULAR) |
| 1079 | break; |
| 1080 | } |
| 1081 | if (j == ti->num_listeners) |
| 1082 | continue; |
| 1083 | |
| 1084 | if (!oldest) { |
| 1085 | oldest = ti; |
| 1086 | continue; |
| 1087 | } |
| 1088 | |
| 1089 | if (oldest->client_id - ti->client_id < UINT_MAX / 2) |
| 1090 | oldest = ti; |
| 1091 | } |
| 1092 | |
| 1093 | return oldest; |
| 1094 | } |
| 1095 | |
| 1096 | /** |
| 1097 | * If the current owner has rejected the event, deliver the |
| 1098 | * TouchOwnership/TouchBegin to the next item in the sprite stack. |
| 1099 | */ |
| 1100 | static void |
| 1101 | TouchPuntToNextOwner(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1102 | TouchOwnershipEvent *ev) |
| 1103 | { |
| 1104 | TouchListener *listener = &ti->listeners[0]; /* new owner */ |
| 1105 | int accepted_early = listener->state == LISTENER_EARLY_ACCEPT; |
| 1106 | |
| 1107 | /* Deliver the ownership */ |
| 1108 | if (listener->state == LISTENER_AWAITING_OWNER || accepted_early) |
| 1109 | DeliverTouchEvents(dev, ti, (InternalEvent *) ev, |
| 1110 | listener->listener); |
| 1111 | else if (listener->state == LISTENER_AWAITING_BEGIN) { |
| 1112 | /* We can't punt to a pointer listener unless all older pointer |
| 1113 | * emulated touches have been seen already. */ |
| 1114 | if ((listener->type == LISTENER_POINTER_GRAB || |
| 1115 | listener->type == LISTENER_POINTER_REGULAR) && |
| 1116 | ti != FindOldestPointerEmulatedTouch(dev)) |
| 1117 | return; |
| 1118 | |
| 1119 | TouchEventHistoryReplay(ti, dev, listener->listener); |
| 1120 | } |
| 1121 | |
| 1122 | /* New owner has Begin/Update but not end. If touch is pending_finish, |
| 1123 | * emulate the TouchEnd now */ |
| 1124 | if (ti->pending_finish) { |
| 1125 | TouchEmitTouchEnd(dev, ti, 0, 0); |
| 1126 | |
| 1127 | /* If the last owner is not a touch grab, finalise the touch, we |
| 1128 | won't get more correspondence on this. |
| 1129 | */ |
| 1130 | if (ti->num_listeners == 1 && |
| 1131 | (ti->num_grabs == 0 || |
| 1132 | listener->grab->grabtype != XI2 || |
| 1133 | !xi2mask_isset(listener->grab->xi2mask, dev, XI_TouchBegin))) { |
| 1134 | TouchEndTouch(dev, ti); |
| 1135 | return; |
| 1136 | } |
| 1137 | } |
| 1138 | |
| 1139 | if (accepted_early) |
| 1140 | ActivateEarlyAccept(dev, ti); |
| 1141 | } |
| 1142 | |
| 1143 | /** |
| 1144 | * Check the oldest touch to see if it needs to be replayed to its pointer |
| 1145 | * owner. |
| 1146 | * |
| 1147 | * Touch event propagation is paused if it hits a pointer listener while an |
| 1148 | * older touch with a pointer listener is waiting on accept or reject. This |
| 1149 | * function will restart propagation of a paused touch if needed. |
| 1150 | * |
| 1151 | * @param dev The device to check touches for. |
| 1152 | */ |
| 1153 | static void |
| 1154 | CheckOldestTouch(DeviceIntPtr dev) |
| 1155 | { |
| 1156 | TouchPointInfoPtr oldest = FindOldestPointerEmulatedTouch(dev); |
| 1157 | |
| 1158 | if (oldest && oldest->listeners[0].state == LISTENER_AWAITING_BEGIN) |
| 1159 | TouchPuntToNextOwner(dev, oldest, NULL); |
| 1160 | } |
| 1161 | |
| 1162 | /** |
| 1163 | * Process a touch rejection. |
| 1164 | * |
| 1165 | * @param sourcedev The source device of the touch sequence. |
| 1166 | * @param ti The touchpoint info record. |
| 1167 | * @param resource The resource of the client rejecting the touch. |
| 1168 | * @param ev TouchOwnership event to send. Set to NULL if no event should be |
| 1169 | * sent. |
| 1170 | */ |
| 1171 | void |
| 1172 | TouchRejected(DeviceIntPtr sourcedev, TouchPointInfoPtr ti, XID resource, |
| 1173 | TouchOwnershipEvent *ev) |
| 1174 | { |
| 1175 | Bool was_owner = (resource == ti->listeners[0].listener); |
| 1176 | int i; |
| 1177 | |
| 1178 | /* Send a TouchEnd event to the resource being removed, but only if they |
| 1179 | * haven't received one yet already */ |
| 1180 | for (i = 0; i < ti->num_listeners; i++) { |
| 1181 | if (ti->listeners[i].listener == resource) { |
| 1182 | if (ti->listeners[i].state != LISTENER_HAS_END) |
| 1183 | TouchEmitTouchEnd(sourcedev, ti, TOUCH_REJECT, resource); |
| 1184 | break; |
| 1185 | } |
| 1186 | } |
| 1187 | |
| 1188 | /* Remove the resource from the listener list, updating |
| 1189 | * ti->num_listeners, as well as ti->num_grabs if it was a grab. */ |
| 1190 | TouchRemoveListener(ti, resource); |
| 1191 | |
| 1192 | /* If the current owner was removed and there are further listeners, deliver |
| 1193 | * the TouchOwnership or TouchBegin event to the new owner. */ |
| 1194 | if (ev && ti->num_listeners > 0 && was_owner) |
| 1195 | TouchPuntToNextOwner(sourcedev, ti, ev); |
| 1196 | else if (ti->num_listeners == 0) |
| 1197 | TouchEndTouch(sourcedev, ti); |
| 1198 | |
| 1199 | CheckOldestTouch(sourcedev); |
| 1200 | } |
| 1201 | |
| 1202 | /** |
| 1203 | * Processes a TouchOwnership event, indicating a grab has accepted the touch |
| 1204 | * it currently owns, or a grab or selection has been removed. Will generate |
| 1205 | * and send TouchEnd events to all clients removed from the delivery list, as |
| 1206 | * well as possibly sending the new TouchOwnership event. May end the |
| 1207 | * touchpoint if it is pending finish. |
| 1208 | */ |
| 1209 | static void |
| 1210 | ProcessTouchOwnershipEvent(TouchOwnershipEvent *ev, |
| 1211 | DeviceIntPtr dev) |
| 1212 | { |
| 1213 | TouchPointInfoPtr ti = TouchFindByClientID(dev, ev->touchid); |
| 1214 | |
| 1215 | if (!ti) { |
| 1216 | DebugF("[Xi] %s: Failed to get event %d for touchpoint %d\n", |
| 1217 | dev->name, ev->type, ev->touchid); |
| 1218 | return; |
| 1219 | } |
| 1220 | |
| 1221 | if (ev->reason == XIRejectTouch) |
| 1222 | TouchRejected(dev, ti, ev->resource, ev); |
| 1223 | else if (ev->reason == XIAcceptTouch) { |
| 1224 | int i; |
| 1225 | |
| 1226 | |
| 1227 | /* For pointer-emulated listeners that ungrabbed the active grab, |
| 1228 | * the state was forced to LISTENER_HAS_END. Still go |
| 1229 | * through the motions of ending the touch if the listener has |
| 1230 | * already seen the end. This ensures that the touch record is ended in |
| 1231 | * the server. |
| 1232 | */ |
| 1233 | if (ti->listeners[0].state == LISTENER_HAS_END) |
| 1234 | TouchEmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[0].listener); |
| 1235 | |
| 1236 | /* The touch owner has accepted the touch. Send TouchEnd events to |
| 1237 | * everyone else, and truncate the list of listeners. */ |
| 1238 | for (i = 1; i < ti->num_listeners; i++) |
| 1239 | TouchEmitTouchEnd(dev, ti, TOUCH_ACCEPT, ti->listeners[i].listener); |
| 1240 | |
| 1241 | while (ti->num_listeners > 1) |
| 1242 | TouchRemoveListener(ti, ti->listeners[1].listener); |
| 1243 | /* Owner accepted after receiving end */ |
| 1244 | if (ti->listeners[0].state == LISTENER_HAS_END) |
| 1245 | TouchEndTouch(dev, ti); |
| 1246 | else |
| 1247 | ti->listeners[0].state = LISTENER_HAS_ACCEPTED; |
| 1248 | } |
| 1249 | else { /* this is the very first ownership event for a grab */ |
| 1250 | DeliverTouchEvents(dev, ti, (InternalEvent *) ev, ev->resource); |
| 1251 | } |
| 1252 | } |
| 1253 | |
| 1254 | /** |
| 1255 | * Copy the event's valuator information into the touchpoint, we may need |
| 1256 | * this for emulated TouchEnd events. |
| 1257 | */ |
| 1258 | static void |
| 1259 | TouchCopyValuatorData(DeviceEvent *ev, TouchPointInfoPtr ti) |
| 1260 | { |
| 1261 | int i; |
| 1262 | |
| 1263 | for (i = 0; i < ARRAY_SIZE(ev->valuators.data); i++) |
| 1264 | if (BitIsOn(ev->valuators.mask, i)) |
| 1265 | valuator_mask_set_double(ti->valuators, i, ev->valuators.data[i]); |
| 1266 | } |
| 1267 | |
| 1268 | /** |
| 1269 | * Given a touch event and a potential listener, retrieve info needed for |
| 1270 | * processing the event. |
| 1271 | * |
| 1272 | * @param dev The device generating the touch event. |
| 1273 | * @param ti The touch point info record for the touch event. |
| 1274 | * @param ev The touch event to process. |
| 1275 | * @param listener The touch event listener that may receive the touch event. |
| 1276 | * @param[out] client The client that should receive the touch event. |
| 1277 | * @param[out] win The window to deliver the event on. |
| 1278 | * @param[out] grab The grab to deliver the event through, if any. |
| 1279 | * @param[out] mask The XI 2.x event mask of the grab or selection, if any. |
| 1280 | * @return TRUE if an event should be delivered to the listener, FALSE |
| 1281 | * otherwise. |
| 1282 | */ |
| 1283 | static Bool |
| 1284 | RetrieveTouchDeliveryData(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1285 | InternalEvent *ev, TouchListener * listener, |
| 1286 | ClientPtr *client, WindowPtr *win, GrabPtr *grab, |
| 1287 | XI2Mask **mask) |
| 1288 | { |
| 1289 | int rc; |
| 1290 | InputClients *iclients = NULL; |
| 1291 | *mask = NULL; |
| 1292 | |
| 1293 | if (listener->type == LISTENER_GRAB || |
| 1294 | listener->type == LISTENER_POINTER_GRAB) { |
| 1295 | |
| 1296 | *grab = listener->grab; |
| 1297 | |
| 1298 | BUG_RETURN_VAL(!*grab, FALSE); |
| 1299 | |
| 1300 | *client = rClient(*grab); |
| 1301 | *win = (*grab)->window; |
| 1302 | *mask = (*grab)->xi2mask; |
| 1303 | } |
| 1304 | else { |
| 1305 | rc = dixLookupResourceByType((pointer *) win, listener->listener, |
| 1306 | listener->resource_type, |
| 1307 | serverClient, DixSendAccess); |
| 1308 | if (rc != Success) |
| 1309 | return FALSE; |
| 1310 | |
| 1311 | if (listener->level == XI2) { |
| 1312 | int evtype; |
| 1313 | |
| 1314 | if (ti->emulate_pointer && |
| 1315 | listener->type == LISTENER_POINTER_REGULAR) |
| 1316 | evtype = GetXI2Type(TouchGetPointerEventType(ev)); |
| 1317 | else |
| 1318 | evtype = GetXI2Type(ev->any.type); |
| 1319 | |
| 1320 | nt_list_for_each_entry(iclients, |
| 1321 | wOtherInputMasks(*win)->inputClients, next) |
| 1322 | if (xi2mask_isset(iclients->xi2mask, dev, evtype)) |
| 1323 | break; |
| 1324 | |
| 1325 | BUG_RETURN_VAL(!iclients, FALSE); |
| 1326 | |
| 1327 | *mask = iclients->xi2mask; |
| 1328 | *client = rClient(iclients); |
| 1329 | } |
| 1330 | else if (listener->level == XI) { |
| 1331 | int xi_type = GetXIType(TouchGetPointerEventType(ev)); |
| 1332 | Mask xi_filter = event_get_filter_from_type(dev, xi_type); |
| 1333 | |
| 1334 | nt_list_for_each_entry(iclients, |
| 1335 | wOtherInputMasks(*win)->inputClients, next) |
| 1336 | if (iclients->mask[dev->id] & xi_filter) |
| 1337 | break; |
| 1338 | BUG_RETURN_VAL(!iclients, FALSE); |
| 1339 | |
| 1340 | *client = rClient(iclients); |
| 1341 | } |
| 1342 | else { |
| 1343 | int coretype = GetCoreType(TouchGetPointerEventType(ev)); |
| 1344 | Mask core_filter = event_get_filter_from_type(dev, coretype); |
| 1345 | OtherClients *oclients; |
| 1346 | |
| 1347 | /* all others */ |
| 1348 | nt_list_for_each_entry(oclients, |
| 1349 | (OtherClients *) wOtherClients(*win), next) |
| 1350 | if (oclients->mask & core_filter) |
| 1351 | break; |
| 1352 | |
| 1353 | /* if owner selected, oclients is NULL */ |
| 1354 | *client = oclients ? rClient(oclients) : wClient(*win); |
| 1355 | } |
| 1356 | |
| 1357 | *grab = NULL; |
| 1358 | } |
| 1359 | |
| 1360 | return TRUE; |
| 1361 | } |
| 1362 | |
| 1363 | static int |
| 1364 | DeliverTouchEmulatedEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1365 | InternalEvent *ev, TouchListener * listener, |
| 1366 | ClientPtr client, WindowPtr win, GrabPtr grab, |
| 1367 | XI2Mask *xi2mask) |
| 1368 | { |
| 1369 | InternalEvent motion, button; |
| 1370 | InternalEvent *ptrev = &motion; |
| 1371 | int nevents; |
| 1372 | DeviceIntPtr kbd; |
| 1373 | |
| 1374 | /* We don't deliver pointer events to non-owners */ |
| 1375 | if (!TouchResourceIsOwner(ti, listener->listener)) |
| 1376 | return !Success; |
| 1377 | |
| 1378 | nevents = TouchConvertToPointerEvent(ev, &motion, &button); |
| 1379 | BUG_RETURN_VAL(nevents == 0, BadValue); |
| 1380 | |
| 1381 | if (nevents > 1) |
| 1382 | ptrev = &button; |
| 1383 | |
| 1384 | kbd = GetMaster(dev, KEYBOARD_OR_FLOAT); |
| 1385 | event_set_state(dev, kbd, &ptrev->device_event); |
| 1386 | ptrev->device_event.corestate = event_get_corestate(dev, kbd); |
| 1387 | |
| 1388 | if (grab) { |
| 1389 | /* this side-steps the usual activation mechanisms, but... */ |
| 1390 | if (ev->any.type == ET_TouchBegin && !dev->deviceGrab.grab) |
| 1391 | ActivatePassiveGrab(dev, grab, ptrev, ev); /* also delivers the event */ |
| 1392 | else { |
| 1393 | int deliveries = 0; |
| 1394 | |
| 1395 | /* 'grab' is the passive grab, but if the grab isn't active, |
| 1396 | * don't deliver */ |
| 1397 | if (!dev->deviceGrab.grab) |
| 1398 | return !Success; |
| 1399 | |
| 1400 | if (grab->ownerEvents) { |
| 1401 | WindowPtr focus = NullWindow; |
| 1402 | WindowPtr sprite_win = dev->spriteInfo->sprite->win; |
| 1403 | |
| 1404 | deliveries = DeliverDeviceEvents(sprite_win, ptrev, grab, focus, dev); |
| 1405 | } |
| 1406 | |
| 1407 | if (!deliveries) |
| 1408 | deliveries = DeliverOneGrabbedEvent(ptrev, dev, grab->grabtype); |
| 1409 | |
| 1410 | /* We must accept the touch sequence once a pointer listener has |
| 1411 | * received one event past ButtonPress. */ |
| 1412 | if (deliveries && ev->any.type != ET_TouchBegin && |
| 1413 | !(ev->device_event.flags & TOUCH_CLIENT_ID)) |
| 1414 | TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch); |
| 1415 | |
| 1416 | if (ev->any.type == ET_TouchEnd && |
| 1417 | ti->num_listeners == 1 && |
| 1418 | !dev->button->buttonsDown && |
| 1419 | dev->deviceGrab.fromPassiveGrab && GrabIsPointerGrab(grab)) { |
| 1420 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 1421 | CheckOldestTouch(dev); |
| 1422 | return Success; |
| 1423 | } |
| 1424 | } |
| 1425 | } |
| 1426 | else { |
| 1427 | GrabPtr devgrab = dev->deviceGrab.grab; |
| 1428 | |
| 1429 | DeliverDeviceEvents(win, ptrev, grab, win, dev); |
| 1430 | /* FIXME: bad hack |
| 1431 | * Implicit passive grab activated in response to this event. Store |
| 1432 | * the event. |
| 1433 | */ |
| 1434 | if (!devgrab && dev->deviceGrab.grab && dev->deviceGrab.implicitGrab) { |
| 1435 | TouchListener *l; |
| 1436 | GrabPtr g; |
| 1437 | |
| 1438 | devgrab = dev->deviceGrab.grab; |
| 1439 | g = AllocGrab(devgrab); |
| 1440 | BUG_WARN(!g); |
| 1441 | |
| 1442 | *dev->deviceGrab.sync.event = ev->device_event; |
| 1443 | |
| 1444 | /* The listener array has a sequence of grabs and then one event |
| 1445 | * selection. Implicit grab activation occurs through delivering an |
| 1446 | * event selection. Thus, we update the last listener in the array. |
| 1447 | */ |
| 1448 | l = &ti->listeners[ti->num_listeners - 1]; |
| 1449 | l->listener = g->resource; |
| 1450 | l->grab = g; |
| 1451 | //l->resource_type = RT_NONE; |
| 1452 | |
| 1453 | if (devgrab->grabtype != XI2 || devgrab->type != XI_TouchBegin) |
| 1454 | l->type = LISTENER_POINTER_GRAB; |
| 1455 | else |
| 1456 | l->type = LISTENER_GRAB; |
| 1457 | } |
| 1458 | |
| 1459 | } |
| 1460 | if (ev->any.type == ET_TouchBegin) |
| 1461 | listener->state = LISTENER_IS_OWNER; |
| 1462 | else if (ev->any.type == ET_TouchEnd) |
| 1463 | listener->state = LISTENER_HAS_END; |
| 1464 | |
| 1465 | return Success; |
| 1466 | } |
| 1467 | |
| 1468 | static void |
| 1469 | DeliverEmulatedMotionEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1470 | InternalEvent *ev) |
| 1471 | { |
| 1472 | InternalEvent motion; |
| 1473 | |
| 1474 | if (ti->num_listeners) { |
| 1475 | ClientPtr client; |
| 1476 | WindowPtr win; |
| 1477 | GrabPtr grab; |
| 1478 | XI2Mask *mask; |
| 1479 | |
| 1480 | if (ti->listeners[0].type != LISTENER_POINTER_REGULAR && |
| 1481 | ti->listeners[0].type != LISTENER_POINTER_GRAB) |
| 1482 | return; |
| 1483 | |
| 1484 | motion = *ev; |
| 1485 | motion.any.type = ET_TouchUpdate; |
| 1486 | motion.device_event.detail.button = 0; |
| 1487 | |
| 1488 | if (!RetrieveTouchDeliveryData(dev, ti, &motion, |
| 1489 | &ti->listeners[0], &client, &win, &grab, |
| 1490 | &mask)) |
| 1491 | return; |
| 1492 | |
| 1493 | /* There may be a pointer grab on the device */ |
| 1494 | if (!grab) { |
| 1495 | grab = dev->deviceGrab.grab; |
| 1496 | if (grab) { |
| 1497 | win = grab->window; |
| 1498 | mask = grab->xi2mask; |
| 1499 | client = rClient(grab); |
| 1500 | } |
| 1501 | } |
| 1502 | |
| 1503 | DeliverTouchEmulatedEvent(dev, ti, &motion, &ti->listeners[0], client, |
| 1504 | win, grab, mask); |
| 1505 | } |
| 1506 | else { |
| 1507 | InternalEvent button; |
| 1508 | int converted; |
| 1509 | |
| 1510 | converted = TouchConvertToPointerEvent(ev, &motion, &button); |
| 1511 | |
| 1512 | BUG_WARN(converted == 0); |
| 1513 | if (converted) |
| 1514 | ProcessOtherEvent(&motion, dev); |
| 1515 | } |
| 1516 | } |
| 1517 | |
| 1518 | /** |
| 1519 | * Processes and delivers a TouchBegin, TouchUpdate, or a |
| 1520 | * TouchEnd event. |
| 1521 | * |
| 1522 | * Due to having rather different delivery semantics (see the Xi 2.2 protocol |
| 1523 | * spec for more information), this implements its own grab and event-selection |
| 1524 | * delivery logic. |
| 1525 | */ |
| 1526 | static void |
| 1527 | ProcessTouchEvent(InternalEvent *ev, DeviceIntPtr dev) |
| 1528 | { |
| 1529 | TouchClassPtr t = dev->touch; |
| 1530 | TouchPointInfoPtr ti; |
| 1531 | uint32_t touchid; |
| 1532 | int type = ev->any.type; |
| 1533 | int emulate_pointer = ! !(ev->device_event.flags & TOUCH_POINTER_EMULATED); |
| 1534 | DeviceIntPtr kbd; |
| 1535 | |
| 1536 | if (!t) |
| 1537 | return; |
| 1538 | |
| 1539 | touchid = ev->device_event.touchid; |
| 1540 | |
| 1541 | if (type == ET_TouchBegin && !(ev->device_event.flags & TOUCH_REPLAYING)) { |
| 1542 | ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid, |
| 1543 | emulate_pointer); |
| 1544 | } |
| 1545 | else |
| 1546 | ti = TouchFindByClientID(dev, touchid); |
| 1547 | |
| 1548 | /* Active pointer grab */ |
| 1549 | if (emulate_pointer && dev->deviceGrab.grab && !dev->deviceGrab.fromPassiveGrab && |
| 1550 | (dev->deviceGrab.grab->grabtype == CORE || |
| 1551 | dev->deviceGrab.grab->grabtype == XI || |
| 1552 | !xi2mask_isset(dev->deviceGrab.grab->xi2mask, dev, XI_TouchBegin))) |
| 1553 | { |
| 1554 | /* Active pointer grab on touch point and we get a TouchEnd - claim this |
| 1555 | * touchpoint accepted, otherwise clients waiting for ownership will |
| 1556 | * wait on this touchpoint until this client ungrabs, or the cows come |
| 1557 | * home, whichever is earlier */ |
| 1558 | if (ti && type == ET_TouchEnd) |
| 1559 | TouchListenerAcceptReject(dev, ti, 0, XIAcceptTouch); |
| 1560 | else if (!ti && type != ET_TouchBegin) { |
| 1561 | /* Under the following circumstances we create a new touch record for an |
| 1562 | * existing touch: |
| 1563 | * |
| 1564 | * - The touch may be pointer emulated |
| 1565 | * - An explicit grab is active on the device |
| 1566 | * - The grab is a pointer grab |
| 1567 | * |
| 1568 | * This allows for an explicit grab to receive pointer events for an already |
| 1569 | * active touch. |
| 1570 | */ |
| 1571 | ti = TouchBeginTouch(dev, ev->device_event.sourceid, touchid, |
| 1572 | emulate_pointer); |
| 1573 | if (!ti) { |
| 1574 | DebugF("[Xi] %s: Failed to create new dix record for explicitly " |
| 1575 | "grabbed touchpoint %d\n", |
| 1576 | dev->name, touchid); |
| 1577 | return; |
| 1578 | } |
| 1579 | |
| 1580 | TouchBuildSprite(dev, ti, ev); |
| 1581 | TouchSetupListeners(dev, ti, ev); |
| 1582 | } |
| 1583 | } |
| 1584 | |
| 1585 | if (!ti) { |
| 1586 | DebugF("[Xi] %s: Failed to get event %d for touchpoint %d\n", |
| 1587 | dev->name, type, touchid); |
| 1588 | return; |
| 1589 | } |
| 1590 | |
| 1591 | /* if emulate_pointer is set, emulate the motion event right |
| 1592 | * here, so we can ignore it for button event emulation. TouchUpdate |
| 1593 | * events which _only_ emulate motion just work normally */ |
| 1594 | if (emulate_pointer && ev->any.type != ET_TouchUpdate) |
| 1595 | DeliverEmulatedMotionEvent(dev, ti, ev); |
| 1596 | |
| 1597 | if (emulate_pointer && IsMaster(dev)) |
| 1598 | CheckMotion(&ev->device_event, dev); |
| 1599 | |
| 1600 | kbd = GetMaster(dev, KEYBOARD_OR_FLOAT); |
| 1601 | event_set_state(NULL, kbd, &ev->device_event); |
| 1602 | ev->device_event.corestate = event_get_corestate(NULL, kbd); |
| 1603 | |
| 1604 | /* Make sure we have a valid window trace for event delivery; must be |
| 1605 | * called after event type mutation. Touch end events are always processed |
| 1606 | * in order to end touch records. */ |
| 1607 | /* FIXME: check this */ |
| 1608 | if ((type == ET_TouchBegin && |
| 1609 | !(ev->device_event.flags & TOUCH_REPLAYING) && |
| 1610 | !TouchBuildSprite(dev, ti, ev)) || |
| 1611 | (type != ET_TouchEnd && ti->sprite.spriteTraceGood == 0)) |
| 1612 | return; |
| 1613 | |
| 1614 | TouchCopyValuatorData(&ev->device_event, ti); |
| 1615 | /* WARNING: the event type may change to TouchUpdate in |
| 1616 | * DeliverTouchEvents if a TouchEnd was delivered to a grabbing |
| 1617 | * owner */ |
| 1618 | DeliverTouchEvents(dev, ti, ev, ev->device_event.resource); |
| 1619 | if (ev->any.type == ET_TouchEnd) |
| 1620 | TouchEndTouch(dev, ti); |
| 1621 | |
| 1622 | if (emulate_pointer) |
| 1623 | UpdateDeviceState(dev, &ev->device_event); |
| 1624 | } |
| 1625 | |
| 1626 | static void |
| 1627 | ProcessBarrierEvent(InternalEvent *e, DeviceIntPtr dev) |
| 1628 | { |
| 1629 | Mask filter; |
| 1630 | WindowPtr pWin; |
| 1631 | BarrierEvent *be = &e->barrier_event; |
| 1632 | xEvent *ev; |
| 1633 | int rc; |
| 1634 | GrabPtr grab = dev->deviceGrab.grab; |
| 1635 | |
| 1636 | if (!IsMaster(dev)) |
| 1637 | return; |
| 1638 | |
| 1639 | if (dixLookupWindow(&pWin, be->window, serverClient, DixReadAccess) != Success) |
| 1640 | return; |
| 1641 | |
| 1642 | if (grab) |
| 1643 | be->flags |= XIBarrierDeviceIsGrabbed; |
| 1644 | |
| 1645 | rc = EventToXI2(e, &ev); |
| 1646 | if (rc != Success) { |
| 1647 | ErrorF("[Xi] event conversion from %s failed with code %d\n", __func__, rc); |
| 1648 | return; |
| 1649 | } |
| 1650 | |
| 1651 | /* A client has a grab, deliver to this client if the grab_window is the |
| 1652 | barrier window. |
| 1653 | |
| 1654 | Otherwise, deliver normally to the client. |
| 1655 | */ |
| 1656 | if (grab && |
| 1657 | CLIENT_ID(be->barrierid) == CLIENT_ID(grab->resource) && |
| 1658 | grab->window->drawable.id == be->window) { |
| 1659 | DeliverGrabbedEvent(e, dev, FALSE); |
| 1660 | } else { |
| 1661 | filter = GetEventFilter(dev, ev); |
| 1662 | |
| 1663 | DeliverEventsToWindow(dev, pWin, ev, 1, |
| 1664 | filter, NullGrab); |
| 1665 | } |
| 1666 | free(ev); |
| 1667 | } |
| 1668 | |
| 1669 | /** |
| 1670 | * Process DeviceEvents and DeviceChangedEvents. |
| 1671 | */ |
| 1672 | static void |
| 1673 | ProcessDeviceEvent(InternalEvent *ev, DeviceIntPtr device) |
| 1674 | { |
| 1675 | GrabPtr grab; |
| 1676 | Bool deactivateDeviceGrab = FALSE; |
| 1677 | int key = 0, rootX, rootY; |
| 1678 | ButtonClassPtr b; |
| 1679 | int ret = 0; |
| 1680 | int corestate; |
| 1681 | DeviceIntPtr mouse = NULL, kbd = NULL; |
| 1682 | DeviceEvent *event = &ev->device_event; |
| 1683 | |
| 1684 | if (IsPointerDevice(device)) { |
| 1685 | kbd = GetMaster(device, KEYBOARD_OR_FLOAT); |
| 1686 | mouse = device; |
| 1687 | if (!kbd->key) /* can happen with floating SDs */ |
| 1688 | kbd = NULL; |
| 1689 | } |
| 1690 | else { |
| 1691 | mouse = GetMaster(device, POINTER_OR_FLOAT); |
| 1692 | kbd = device; |
| 1693 | if (!mouse->valuator || !mouse->button) /* may be float. SDs */ |
| 1694 | mouse = NULL; |
| 1695 | } |
| 1696 | |
| 1697 | corestate = event_get_corestate(mouse, kbd); |
| 1698 | event_set_state(mouse, kbd, event); |
| 1699 | |
| 1700 | ret = UpdateDeviceState(device, event); |
| 1701 | if (ret == DONT_PROCESS) |
| 1702 | return; |
| 1703 | |
| 1704 | b = device->button; |
| 1705 | |
| 1706 | if (IsMaster(device) || IsFloating(device)) |
| 1707 | CheckMotion(event, device); |
| 1708 | |
| 1709 | switch (event->type) { |
| 1710 | case ET_Motion: |
| 1711 | case ET_ButtonPress: |
| 1712 | case ET_ButtonRelease: |
| 1713 | case ET_KeyPress: |
| 1714 | case ET_KeyRelease: |
| 1715 | case ET_ProximityIn: |
| 1716 | case ET_ProximityOut: |
| 1717 | GetSpritePosition(device, &rootX, &rootY); |
| 1718 | event->root_x = rootX; |
| 1719 | event->root_y = rootY; |
| 1720 | NoticeEventTime((InternalEvent *) event, device); |
| 1721 | event->corestate = corestate; |
| 1722 | key = event->detail.key; |
| 1723 | break; |
| 1724 | default: |
| 1725 | break; |
| 1726 | } |
| 1727 | |
| 1728 | if (DeviceEventCallback && !syncEvents.playingEvents) { |
| 1729 | DeviceEventInfoRec eventinfo; |
| 1730 | SpritePtr pSprite = device->spriteInfo->sprite; |
| 1731 | |
| 1732 | /* see comment in EnqueueEvents regarding the next three lines */ |
| 1733 | if (ev->any.type == ET_Motion) |
| 1734 | ev->device_event.root = pSprite->hotPhys.pScreen->root->drawable.id; |
| 1735 | |
| 1736 | eventinfo.device = device; |
| 1737 | eventinfo.event = ev; |
| 1738 | CallCallbacks(&DeviceEventCallback, (pointer) &eventinfo); |
| 1739 | } |
| 1740 | |
| 1741 | grab = device->deviceGrab.grab; |
| 1742 | |
| 1743 | switch (event->type) { |
| 1744 | case ET_KeyPress: |
| 1745 | if (!grab && CheckDeviceGrabs(device, event, 0)) |
| 1746 | return; |
| 1747 | break; |
| 1748 | case ET_KeyRelease: |
| 1749 | if (grab && device->deviceGrab.fromPassiveGrab && |
| 1750 | (key == device->deviceGrab.activatingKey) && |
| 1751 | GrabIsKeyboardGrab(device->deviceGrab.grab)) |
| 1752 | deactivateDeviceGrab = TRUE; |
| 1753 | break; |
| 1754 | case ET_ButtonPress: |
| 1755 | if (b->map[key] == 0) /* there's no button 0 */ |
| 1756 | return; |
| 1757 | event->detail.button = b->map[key]; |
| 1758 | if (!grab && CheckDeviceGrabs(device, event, 0)) { |
| 1759 | /* if a passive grab was activated, the event has been sent |
| 1760 | * already */ |
| 1761 | return; |
| 1762 | } |
| 1763 | break; |
| 1764 | case ET_ButtonRelease: |
| 1765 | if (b->map[key] == 0) /* there's no button 0 */ |
| 1766 | return; |
| 1767 | event->detail.button = b->map[key]; |
| 1768 | if (grab && !b->buttonsDown && |
| 1769 | device->deviceGrab.fromPassiveGrab && |
| 1770 | GrabIsPointerGrab(device->deviceGrab.grab)) |
| 1771 | deactivateDeviceGrab = TRUE; |
| 1772 | default: |
| 1773 | break; |
| 1774 | } |
| 1775 | |
| 1776 | if (grab) |
| 1777 | DeliverGrabbedEvent((InternalEvent *) event, device, |
| 1778 | deactivateDeviceGrab); |
| 1779 | else if (device->focus && !IsPointerEvent(ev)) |
| 1780 | DeliverFocusedEvent(device, (InternalEvent *) event, |
| 1781 | GetSpriteWindow(device)); |
| 1782 | else |
| 1783 | DeliverDeviceEvents(GetSpriteWindow(device), (InternalEvent *) event, |
| 1784 | NullGrab, NullWindow, device); |
| 1785 | |
| 1786 | if (deactivateDeviceGrab == TRUE) { |
| 1787 | (*device->deviceGrab.DeactivateGrab) (device); |
| 1788 | |
| 1789 | if (!IsMaster (device) && !IsFloating (device)) { |
| 1790 | int flags, num_events = 0; |
| 1791 | InternalEvent dce; |
| 1792 | |
| 1793 | flags = (IsPointerDevice (device)) ? |
| 1794 | DEVCHANGE_POINTER_EVENT : DEVCHANGE_KEYBOARD_EVENT; |
| 1795 | UpdateFromMaster (&dce, device, flags, &num_events); |
| 1796 | BUG_WARN(num_events > 1); |
| 1797 | |
| 1798 | if (num_events == 1) |
| 1799 | ChangeMasterDeviceClasses(GetMaster (device, MASTER_ATTACHED), |
| 1800 | &dce.changed_event); |
| 1801 | } |
| 1802 | |
| 1803 | } |
| 1804 | |
| 1805 | event->detail.key = key; |
| 1806 | } |
| 1807 | |
| 1808 | /** |
| 1809 | * Main device event processing function. |
| 1810 | * Called from when processing the events from the event queue. |
| 1811 | * |
| 1812 | */ |
| 1813 | void |
| 1814 | ProcessOtherEvent(InternalEvent *ev, DeviceIntPtr device) |
| 1815 | { |
| 1816 | verify_internal_event(ev); |
| 1817 | |
| 1818 | switch (ev->any.type) { |
| 1819 | case ET_RawKeyPress: |
| 1820 | case ET_RawKeyRelease: |
| 1821 | case ET_RawButtonPress: |
| 1822 | case ET_RawButtonRelease: |
| 1823 | case ET_RawMotion: |
| 1824 | case ET_RawTouchBegin: |
| 1825 | case ET_RawTouchUpdate: |
| 1826 | case ET_RawTouchEnd: |
| 1827 | DeliverRawEvent(&ev->raw_event, device); |
| 1828 | break; |
| 1829 | case ET_TouchBegin: |
| 1830 | case ET_TouchUpdate: |
| 1831 | case ET_TouchEnd: |
| 1832 | ProcessTouchEvent(ev, device); |
| 1833 | break; |
| 1834 | case ET_TouchOwnership: |
| 1835 | /* TouchOwnership events are handled separately from the rest, as they |
| 1836 | * have more complex semantics. */ |
| 1837 | ProcessTouchOwnershipEvent(&ev->touch_ownership_event, device); |
| 1838 | break; |
| 1839 | case ET_BarrierHit: |
| 1840 | case ET_BarrierLeave: |
| 1841 | ProcessBarrierEvent(ev, device); |
| 1842 | break; |
| 1843 | default: |
| 1844 | ProcessDeviceEvent(ev, device); |
| 1845 | break; |
| 1846 | } |
| 1847 | } |
| 1848 | |
| 1849 | static int |
| 1850 | DeliverTouchBeginEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 1851 | InternalEvent *ev, TouchListener * listener, |
| 1852 | ClientPtr client, WindowPtr win, GrabPtr grab, |
| 1853 | XI2Mask *xi2mask) |
| 1854 | { |
| 1855 | enum TouchListenerState state; |
| 1856 | int rc = Success; |
| 1857 | Bool has_ownershipmask; |
| 1858 | |
| 1859 | if (listener->type == LISTENER_POINTER_REGULAR || |
| 1860 | listener->type == LISTENER_POINTER_GRAB) { |
| 1861 | rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, |
| 1862 | grab, xi2mask); |
| 1863 | if (rc == Success) { |
| 1864 | listener->state = LISTENER_IS_OWNER; |
| 1865 | /* async grabs cannot replay, so automatically accept this touch */ |
| 1866 | if (listener->type == LISTENER_POINTER_GRAB && |
| 1867 | dev->deviceGrab.grab && |
| 1868 | dev->deviceGrab.fromPassiveGrab && |
| 1869 | dev->deviceGrab.grab->pointerMode == GrabModeAsync) |
| 1870 | ActivateEarlyAccept(dev, ti); |
| 1871 | } |
| 1872 | goto out; |
| 1873 | } |
| 1874 | |
| 1875 | has_ownershipmask = xi2mask_isset(xi2mask, dev, XI_TouchOwnership); |
| 1876 | |
| 1877 | if (TouchResourceIsOwner(ti, listener->listener) || has_ownershipmask) |
| 1878 | rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); |
| 1879 | if (!TouchResourceIsOwner(ti, listener->listener)) { |
| 1880 | if (has_ownershipmask) |
| 1881 | state = LISTENER_AWAITING_OWNER; |
| 1882 | else |
| 1883 | state = LISTENER_AWAITING_BEGIN; |
| 1884 | } |
| 1885 | else { |
| 1886 | if (has_ownershipmask) |
| 1887 | TouchSendOwnershipEvent(dev, ti, 0, listener->listener); |
| 1888 | |
| 1889 | if (listener->type == LISTENER_REGULAR) |
| 1890 | state = LISTENER_HAS_ACCEPTED; |
| 1891 | else |
| 1892 | state = LISTENER_IS_OWNER; |
| 1893 | } |
| 1894 | listener->state = state; |
| 1895 | |
| 1896 | out: |
| 1897 | return rc; |
| 1898 | } |
| 1899 | |
| 1900 | static int |
| 1901 | DeliverTouchEndEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, |
| 1902 | TouchListener * listener, ClientPtr client, |
| 1903 | WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) |
| 1904 | { |
| 1905 | int rc = Success; |
| 1906 | |
| 1907 | if (listener->type == LISTENER_POINTER_REGULAR || |
| 1908 | listener->type == LISTENER_POINTER_GRAB) { |
| 1909 | /* Note: If the active grab was ungrabbed, we already changed the |
| 1910 | * state to LISTENER_HAS_END but still get here. So we mustn't |
| 1911 | * actually send the event. |
| 1912 | * This is part two of the hack in DeactivatePointerGrab |
| 1913 | */ |
| 1914 | if (listener->state != LISTENER_HAS_END) { |
| 1915 | rc = DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, |
| 1916 | grab, xi2mask); |
| 1917 | |
| 1918 | /* Once we send a TouchEnd to a legacy listener, we're already well |
| 1919 | * past the accepting/rejecting stage (can only happen on |
| 1920 | * GrabModeSync + replay. This listener now gets the end event, |
| 1921 | * and we can continue. |
| 1922 | */ |
| 1923 | if (rc == Success) |
| 1924 | listener->state = LISTENER_HAS_END; |
| 1925 | } |
| 1926 | goto out; |
| 1927 | } |
| 1928 | |
| 1929 | /* A client is waiting for the begin, don't give it a TouchEnd */ |
| 1930 | if (listener->state == LISTENER_AWAITING_BEGIN) { |
| 1931 | listener->state = LISTENER_HAS_END; |
| 1932 | goto out; |
| 1933 | } |
| 1934 | |
| 1935 | /* Event in response to reject */ |
| 1936 | if (ev->device_event.flags & TOUCH_REJECT || |
| 1937 | (ev->device_event.flags & TOUCH_ACCEPT && !TouchResourceIsOwner(ti, listener->listener))) { |
| 1938 | /* Touch has been rejected, or accepted by its owner which is not this listener */ |
| 1939 | if (listener->state != LISTENER_HAS_END) |
| 1940 | rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); |
| 1941 | listener->state = LISTENER_HAS_END; |
| 1942 | } |
| 1943 | else if (TouchResourceIsOwner(ti, listener->listener)) { |
| 1944 | Bool normal_end = !(ev->device_event.flags & TOUCH_ACCEPT); |
| 1945 | |
| 1946 | /* FIXME: what about early acceptance */ |
| 1947 | if (normal_end && listener->state != LISTENER_HAS_END) |
| 1948 | rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); |
| 1949 | |
| 1950 | if ((ti->num_listeners > 1 || |
| 1951 | (ti->num_grabs > 0 && listener->state != LISTENER_HAS_ACCEPTED)) && |
| 1952 | (ev->device_event.flags & (TOUCH_ACCEPT | TOUCH_REJECT)) == 0) { |
| 1953 | ev->any.type = ET_TouchUpdate; |
| 1954 | ev->device_event.flags |= TOUCH_PENDING_END; |
| 1955 | ti->pending_finish = TRUE; |
| 1956 | } |
| 1957 | |
| 1958 | if (normal_end) |
| 1959 | listener->state = LISTENER_HAS_END; |
| 1960 | } |
| 1961 | |
| 1962 | out: |
| 1963 | return rc; |
| 1964 | } |
| 1965 | |
| 1966 | static int |
| 1967 | DeliverTouchEvent(DeviceIntPtr dev, TouchPointInfoPtr ti, InternalEvent *ev, |
| 1968 | TouchListener * listener, ClientPtr client, |
| 1969 | WindowPtr win, GrabPtr grab, XI2Mask *xi2mask) |
| 1970 | { |
| 1971 | Bool has_ownershipmask = FALSE; |
| 1972 | int rc = Success; |
| 1973 | |
| 1974 | if (xi2mask) |
| 1975 | has_ownershipmask = xi2mask_isset(xi2mask, dev, XI_TouchOwnership); |
| 1976 | |
| 1977 | if (ev->any.type == ET_TouchOwnership) { |
| 1978 | ev->touch_ownership_event.deviceid = dev->id; |
| 1979 | if (!TouchResourceIsOwner(ti, listener->listener)) |
| 1980 | goto out; |
| 1981 | rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); |
| 1982 | listener->state = LISTENER_IS_OWNER; |
| 1983 | } |
| 1984 | else |
| 1985 | ev->device_event.deviceid = dev->id; |
| 1986 | |
| 1987 | if (ev->any.type == ET_TouchBegin) { |
| 1988 | rc = DeliverTouchBeginEvent(dev, ti, ev, listener, client, win, grab, |
| 1989 | xi2mask); |
| 1990 | } |
| 1991 | else if (ev->any.type == ET_TouchUpdate) { |
| 1992 | if (listener->type == LISTENER_POINTER_REGULAR || |
| 1993 | listener->type == LISTENER_POINTER_GRAB) |
| 1994 | DeliverTouchEmulatedEvent(dev, ti, ev, listener, client, win, grab, |
| 1995 | xi2mask); |
| 1996 | else if (TouchResourceIsOwner(ti, listener->listener) || |
| 1997 | has_ownershipmask) |
| 1998 | rc = DeliverOneTouchEvent(client, dev, ti, grab, win, ev); |
| 1999 | } |
| 2000 | else if (ev->any.type == ET_TouchEnd) |
| 2001 | rc = DeliverTouchEndEvent(dev, ti, ev, listener, client, win, grab, |
| 2002 | xi2mask); |
| 2003 | |
| 2004 | out: |
| 2005 | return rc; |
| 2006 | } |
| 2007 | |
| 2008 | /** |
| 2009 | * Delivers a touch events to all interested clients. For TouchBegin events, |
| 2010 | * will update ti->listeners, ti->num_listeners, and ti->num_grabs. |
| 2011 | * May also mutate ev (type and flags) upon successful delivery. If |
| 2012 | * @resource is non-zero, will only attempt delivery to the owner of that |
| 2013 | * resource. |
| 2014 | * |
| 2015 | * @return TRUE if the event was delivered at least once, FALSE otherwise |
| 2016 | */ |
| 2017 | void |
| 2018 | DeliverTouchEvents(DeviceIntPtr dev, TouchPointInfoPtr ti, |
| 2019 | InternalEvent *ev, XID resource) |
| 2020 | { |
| 2021 | int i; |
| 2022 | |
| 2023 | if (ev->any.type == ET_TouchBegin && |
| 2024 | !(ev->device_event.flags & (TOUCH_CLIENT_ID | TOUCH_REPLAYING))) |
| 2025 | TouchSetupListeners(dev, ti, ev); |
| 2026 | |
| 2027 | TouchEventHistoryPush(ti, &ev->device_event); |
| 2028 | |
| 2029 | for (i = 0; i < ti->num_listeners; i++) { |
| 2030 | GrabPtr grab = NULL; |
| 2031 | ClientPtr client; |
| 2032 | WindowPtr win; |
| 2033 | XI2Mask *mask; |
| 2034 | TouchListener *listener = &ti->listeners[i]; |
| 2035 | |
| 2036 | if (resource && listener->listener != resource) |
| 2037 | continue; |
| 2038 | |
| 2039 | if (!RetrieveTouchDeliveryData(dev, ti, ev, listener, &client, &win, |
| 2040 | &grab, &mask)) |
| 2041 | continue; |
| 2042 | |
| 2043 | DeliverTouchEvent(dev, ti, ev, listener, client, win, grab, mask); |
| 2044 | } |
| 2045 | } |
| 2046 | |
| 2047 | int |
| 2048 | InitProximityClassDeviceStruct(DeviceIntPtr dev) |
| 2049 | { |
| 2050 | ProximityClassPtr proxc; |
| 2051 | |
| 2052 | BUG_RETURN_VAL(dev == NULL, FALSE); |
| 2053 | BUG_RETURN_VAL(dev->proximity != NULL, FALSE); |
| 2054 | |
| 2055 | proxc = (ProximityClassPtr) malloc(sizeof(ProximityClassRec)); |
| 2056 | if (!proxc) |
| 2057 | return FALSE; |
| 2058 | proxc->sourceid = dev->id; |
| 2059 | proxc->in_proximity = TRUE; |
| 2060 | dev->proximity = proxc; |
| 2061 | return TRUE; |
| 2062 | } |
| 2063 | |
| 2064 | /** |
| 2065 | * Initialise the device's valuators. The memory must already be allocated, |
| 2066 | * this function merely inits the matching axis (specified through axnum) to |
| 2067 | * sane values. |
| 2068 | * |
| 2069 | * It is a condition that (minval < maxval). |
| 2070 | * |
| 2071 | * @see InitValuatorClassDeviceStruct |
| 2072 | */ |
| 2073 | Bool |
| 2074 | InitValuatorAxisStruct(DeviceIntPtr dev, int axnum, Atom label, int minval, |
| 2075 | int maxval, int resolution, int min_res, int max_res, |
| 2076 | int mode) |
| 2077 | { |
| 2078 | AxisInfoPtr ax; |
| 2079 | |
| 2080 | BUG_RETURN_VAL(dev == NULL, FALSE); |
| 2081 | BUG_RETURN_VAL(dev->valuator == NULL, FALSE); |
| 2082 | BUG_RETURN_VAL(axnum >= dev->valuator->numAxes, FALSE); |
| 2083 | BUG_RETURN_VAL(minval > maxval && mode == Absolute, FALSE); |
| 2084 | |
| 2085 | ax = dev->valuator->axes + axnum; |
| 2086 | |
| 2087 | ax->min_value = minval; |
| 2088 | ax->max_value = maxval; |
| 2089 | ax->resolution = resolution; |
| 2090 | ax->min_resolution = min_res; |
| 2091 | ax->max_resolution = max_res; |
| 2092 | ax->label = label; |
| 2093 | ax->mode = mode; |
| 2094 | |
| 2095 | if (mode & OutOfProximity) |
| 2096 | dev->proximity->in_proximity = FALSE; |
| 2097 | |
| 2098 | return SetScrollValuator(dev, axnum, SCROLL_TYPE_NONE, 0, SCROLL_FLAG_NONE); |
| 2099 | } |
| 2100 | |
| 2101 | /** |
| 2102 | * Set the given axis number as a scrolling valuator. |
| 2103 | */ |
| 2104 | Bool |
| 2105 | SetScrollValuator(DeviceIntPtr dev, int axnum, enum ScrollType type, |
| 2106 | double increment, int flags) |
| 2107 | { |
| 2108 | AxisInfoPtr ax; |
| 2109 | int *current_ax; |
| 2110 | InternalEvent dce; |
| 2111 | DeviceIntPtr master; |
| 2112 | |
| 2113 | BUG_RETURN_VAL(dev == NULL, FALSE); |
| 2114 | BUG_RETURN_VAL(dev->valuator == NULL, FALSE); |
| 2115 | BUG_RETURN_VAL(axnum >= dev->valuator->numAxes, FALSE); |
| 2116 | |
| 2117 | switch (type) { |
| 2118 | case SCROLL_TYPE_VERTICAL: |
| 2119 | current_ax = &dev->valuator->v_scroll_axis; |
| 2120 | break; |
| 2121 | case SCROLL_TYPE_HORIZONTAL: |
| 2122 | current_ax = &dev->valuator->h_scroll_axis; |
| 2123 | break; |
| 2124 | case SCROLL_TYPE_NONE: |
| 2125 | ax = &dev->valuator->axes[axnum]; |
| 2126 | ax->scroll.type = type; |
| 2127 | return TRUE; |
| 2128 | default: |
| 2129 | return FALSE; |
| 2130 | } |
| 2131 | |
| 2132 | if (increment == 0.0) |
| 2133 | return FALSE; |
| 2134 | |
| 2135 | if (*current_ax != -1 && axnum != *current_ax) { |
| 2136 | ax = &dev->valuator->axes[*current_ax]; |
| 2137 | if (ax->scroll.type == type && |
| 2138 | (flags & SCROLL_FLAG_PREFERRED) && |
| 2139 | (ax->scroll.flags & SCROLL_FLAG_PREFERRED)) |
| 2140 | return FALSE; |
| 2141 | } |
| 2142 | *current_ax = axnum; |
| 2143 | |
| 2144 | ax = &dev->valuator->axes[axnum]; |
| 2145 | ax->scroll.type = type; |
| 2146 | ax->scroll.increment = increment; |
| 2147 | ax->scroll.flags = flags; |
| 2148 | |
| 2149 | master = GetMaster(dev, MASTER_ATTACHED); |
| 2150 | CreateClassesChangedEvent(&dce, master, dev, |
| 2151 | DEVCHANGE_POINTER_EVENT | |
| 2152 | DEVCHANGE_DEVICE_CHANGE); |
| 2153 | XISendDeviceChangedEvent(dev, &dce.changed_event); |
| 2154 | |
| 2155 | /* if the current slave is us, update the master. If not, we'll update |
| 2156 | * whenever the next slave switch happens anyway. CMDC sends the event |
| 2157 | * for us */ |
| 2158 | if (master && master->lastSlave == dev) |
| 2159 | ChangeMasterDeviceClasses(master, &dce.changed_event); |
| 2160 | |
| 2161 | return TRUE; |
| 2162 | } |
| 2163 | |
| 2164 | int |
| 2165 | CheckGrabValues(ClientPtr client, GrabParameters *param) |
| 2166 | { |
| 2167 | if (param->grabtype != CORE && |
| 2168 | param->grabtype != XI && param->grabtype != XI2) { |
| 2169 | ErrorF("[Xi] grabtype is invalid. This is a bug.\n"); |
| 2170 | return BadImplementation; |
| 2171 | } |
| 2172 | |
| 2173 | if ((param->this_device_mode != GrabModeSync) && |
| 2174 | (param->this_device_mode != GrabModeAsync) && |
| 2175 | (param->this_device_mode != XIGrabModeTouch)) { |
| 2176 | client->errorValue = param->this_device_mode; |
| 2177 | return BadValue; |
| 2178 | } |
| 2179 | if ((param->other_devices_mode != GrabModeSync) && |
| 2180 | (param->other_devices_mode != GrabModeAsync) && |
| 2181 | (param->other_devices_mode != XIGrabModeTouch)) { |
| 2182 | client->errorValue = param->other_devices_mode; |
| 2183 | return BadValue; |
| 2184 | } |
| 2185 | |
| 2186 | if (param->modifiers != AnyModifier && |
| 2187 | param->modifiers != XIAnyModifier && |
| 2188 | (param->modifiers & ~AllModifiersMask)) { |
| 2189 | client->errorValue = param->modifiers; |
| 2190 | return BadValue; |
| 2191 | } |
| 2192 | |
| 2193 | if ((param->ownerEvents != xFalse) && (param->ownerEvents != xTrue)) { |
| 2194 | client->errorValue = param->ownerEvents; |
| 2195 | return BadValue; |
| 2196 | } |
| 2197 | return Success; |
| 2198 | } |
| 2199 | |
| 2200 | int |
| 2201 | GrabButton(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device, |
| 2202 | int button, GrabParameters *param, enum InputLevel grabtype, |
| 2203 | GrabMask *mask) |
| 2204 | { |
| 2205 | WindowPtr pWin, confineTo; |
| 2206 | CursorPtr cursor; |
| 2207 | GrabPtr grab; |
| 2208 | int rc, type = -1; |
| 2209 | Mask access_mode = DixGrabAccess; |
| 2210 | |
| 2211 | rc = CheckGrabValues(client, param); |
| 2212 | if (rc != Success) |
| 2213 | return rc; |
| 2214 | if (param->confineTo == None) |
| 2215 | confineTo = NullWindow; |
| 2216 | else { |
| 2217 | rc = dixLookupWindow(&confineTo, param->confineTo, client, |
| 2218 | DixSetAttrAccess); |
| 2219 | if (rc != Success) |
| 2220 | return rc; |
| 2221 | } |
| 2222 | if (param->cursor == None) |
| 2223 | cursor = NullCursor; |
| 2224 | else { |
| 2225 | rc = dixLookupResourceByType((pointer *) &cursor, param->cursor, |
| 2226 | RT_CURSOR, client, DixUseAccess); |
| 2227 | if (rc != Success) { |
| 2228 | client->errorValue = param->cursor; |
| 2229 | return rc; |
| 2230 | } |
| 2231 | access_mode |= DixForceAccess; |
| 2232 | } |
| 2233 | if (param->this_device_mode == GrabModeSync || |
| 2234 | param->other_devices_mode == GrabModeSync) |
| 2235 | access_mode |= DixFreezeAccess; |
| 2236 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode); |
| 2237 | if (rc != Success) |
| 2238 | return rc; |
| 2239 | rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess); |
| 2240 | if (rc != Success) |
| 2241 | return rc; |
| 2242 | |
| 2243 | if (grabtype == XI) |
| 2244 | type = DeviceButtonPress; |
| 2245 | else if (grabtype == XI2) |
| 2246 | type = XI_ButtonPress; |
| 2247 | |
| 2248 | grab = CreateGrab(client->index, dev, modifier_device, pWin, grabtype, |
| 2249 | mask, param, type, button, confineTo, cursor); |
| 2250 | if (!grab) |
| 2251 | return BadAlloc; |
| 2252 | return AddPassiveGrabToList(client, grab); |
| 2253 | } |
| 2254 | |
| 2255 | /** |
| 2256 | * Grab the given key. |
| 2257 | */ |
| 2258 | int |
| 2259 | GrabKey(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr modifier_device, |
| 2260 | int key, GrabParameters *param, enum InputLevel grabtype, |
| 2261 | GrabMask *mask) |
| 2262 | { |
| 2263 | WindowPtr pWin; |
| 2264 | GrabPtr grab; |
| 2265 | KeyClassPtr k = dev->key; |
| 2266 | Mask access_mode = DixGrabAccess; |
| 2267 | int rc, type = -1; |
| 2268 | |
| 2269 | rc = CheckGrabValues(client, param); |
| 2270 | if (rc != Success) |
| 2271 | return rc; |
| 2272 | if ((dev->id != XIAllDevices && dev->id != XIAllMasterDevices) && k == NULL) |
| 2273 | return BadMatch; |
| 2274 | if (grabtype == XI) { |
| 2275 | if ((key > k->xkbInfo->desc->max_key_code || |
| 2276 | key < k->xkbInfo->desc->min_key_code) |
| 2277 | && (key != AnyKey)) { |
| 2278 | client->errorValue = key; |
| 2279 | return BadValue; |
| 2280 | } |
| 2281 | type = DeviceKeyPress; |
| 2282 | } |
| 2283 | else if (grabtype == XI2) |
| 2284 | type = XI_KeyPress; |
| 2285 | |
| 2286 | rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess); |
| 2287 | if (rc != Success) |
| 2288 | return rc; |
| 2289 | if (param->this_device_mode == GrabModeSync || |
| 2290 | param->other_devices_mode == GrabModeSync) |
| 2291 | access_mode |= DixFreezeAccess; |
| 2292 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode); |
| 2293 | if (rc != Success) |
| 2294 | return rc; |
| 2295 | |
| 2296 | grab = CreateGrab(client->index, dev, modifier_device, pWin, grabtype, |
| 2297 | mask, param, type, key, NULL, NULL); |
| 2298 | if (!grab) |
| 2299 | return BadAlloc; |
| 2300 | return AddPassiveGrabToList(client, grab); |
| 2301 | } |
| 2302 | |
| 2303 | /* Enter/FocusIn grab */ |
| 2304 | int |
| 2305 | GrabWindow(ClientPtr client, DeviceIntPtr dev, int type, |
| 2306 | GrabParameters *param, GrabMask *mask) |
| 2307 | { |
| 2308 | WindowPtr pWin; |
| 2309 | CursorPtr cursor; |
| 2310 | GrabPtr grab; |
| 2311 | Mask access_mode = DixGrabAccess; |
| 2312 | int rc; |
| 2313 | |
| 2314 | rc = CheckGrabValues(client, param); |
| 2315 | if (rc != Success) |
| 2316 | return rc; |
| 2317 | |
| 2318 | rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess); |
| 2319 | if (rc != Success) |
| 2320 | return rc; |
| 2321 | if (param->cursor == None) |
| 2322 | cursor = NullCursor; |
| 2323 | else { |
| 2324 | rc = dixLookupResourceByType((pointer *) &cursor, param->cursor, |
| 2325 | RT_CURSOR, client, DixUseAccess); |
| 2326 | if (rc != Success) { |
| 2327 | client->errorValue = param->cursor; |
| 2328 | return rc; |
| 2329 | } |
| 2330 | access_mode |= DixForceAccess; |
| 2331 | } |
| 2332 | if (param->this_device_mode == GrabModeSync || |
| 2333 | param->other_devices_mode == GrabModeSync) |
| 2334 | access_mode |= DixFreezeAccess; |
| 2335 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode); |
| 2336 | if (rc != Success) |
| 2337 | return rc; |
| 2338 | |
| 2339 | grab = CreateGrab(client->index, dev, dev, pWin, XI2, |
| 2340 | mask, param, |
| 2341 | (type == XIGrabtypeEnter) ? XI_Enter : XI_FocusIn, 0, |
| 2342 | NULL, cursor); |
| 2343 | |
| 2344 | if (!grab) |
| 2345 | return BadAlloc; |
| 2346 | |
| 2347 | return AddPassiveGrabToList(client, grab); |
| 2348 | } |
| 2349 | |
| 2350 | /* Touch grab */ |
| 2351 | int |
| 2352 | GrabTouch(ClientPtr client, DeviceIntPtr dev, DeviceIntPtr mod_dev, |
| 2353 | GrabParameters *param, GrabMask *mask) |
| 2354 | { |
| 2355 | WindowPtr pWin; |
| 2356 | GrabPtr grab; |
| 2357 | int rc; |
| 2358 | |
| 2359 | rc = CheckGrabValues(client, param); |
| 2360 | if (rc != Success) |
| 2361 | return rc; |
| 2362 | |
| 2363 | rc = dixLookupWindow(&pWin, param->grabWindow, client, DixSetAttrAccess); |
| 2364 | if (rc != Success) |
| 2365 | return rc; |
| 2366 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixGrabAccess); |
| 2367 | if (rc != Success) |
| 2368 | return rc; |
| 2369 | |
| 2370 | grab = CreateGrab(client->index, dev, mod_dev, pWin, XI2, |
| 2371 | mask, param, XI_TouchBegin, 0, NullWindow, NullCursor); |
| 2372 | if (!grab) |
| 2373 | return BadAlloc; |
| 2374 | |
| 2375 | return AddPassiveGrabToList(client, grab); |
| 2376 | } |
| 2377 | |
| 2378 | int |
| 2379 | SelectForWindow(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client, |
| 2380 | Mask mask, Mask exclusivemasks) |
| 2381 | { |
| 2382 | int mskidx = dev->id; |
| 2383 | int i, ret; |
| 2384 | Mask check; |
| 2385 | InputClientsPtr others; |
| 2386 | |
| 2387 | check = (mask & exclusivemasks); |
| 2388 | if (wOtherInputMasks(pWin)) { |
| 2389 | if (check & wOtherInputMasks(pWin)->inputEvents[mskidx]) { |
| 2390 | /* It is illegal for two different clients to select on any of |
| 2391 | * the events for maskcheck. However, it is OK, for some client |
| 2392 | * to continue selecting on one of those events. |
| 2393 | */ |
| 2394 | for (others = wOtherInputMasks(pWin)->inputClients; others; |
| 2395 | others = others->next) { |
| 2396 | if (!SameClient(others, client) && (check & |
| 2397 | others->mask[mskidx])) |
| 2398 | return BadAccess; |
| 2399 | } |
| 2400 | } |
| 2401 | for (others = wOtherInputMasks(pWin)->inputClients; others; |
| 2402 | others = others->next) { |
| 2403 | if (SameClient(others, client)) { |
| 2404 | check = others->mask[mskidx]; |
| 2405 | others->mask[mskidx] = mask; |
| 2406 | if (mask == 0) { |
| 2407 | for (i = 0; i < EMASKSIZE; i++) |
| 2408 | if (i != mskidx && others->mask[i] != 0) |
| 2409 | break; |
| 2410 | if (i == EMASKSIZE) { |
| 2411 | RecalculateDeviceDeliverableEvents(pWin); |
| 2412 | if (ShouldFreeInputMasks(pWin, FALSE)) |
| 2413 | FreeResource(others->resource, RT_NONE); |
| 2414 | return Success; |
| 2415 | } |
| 2416 | } |
| 2417 | goto maskSet; |
| 2418 | } |
| 2419 | } |
| 2420 | } |
| 2421 | check = 0; |
| 2422 | if ((ret = AddExtensionClient(pWin, client, mask, mskidx)) != Success) |
| 2423 | return ret; |
| 2424 | maskSet: |
| 2425 | if (dev->valuator) |
| 2426 | if ((dev->valuator->motionHintWindow == pWin) && |
| 2427 | (mask & DevicePointerMotionHintMask) && |
| 2428 | !(check & DevicePointerMotionHintMask) && !dev->deviceGrab.grab) |
| 2429 | dev->valuator->motionHintWindow = NullWindow; |
| 2430 | RecalculateDeviceDeliverableEvents(pWin); |
| 2431 | return Success; |
| 2432 | } |
| 2433 | |
| 2434 | static void |
| 2435 | FreeInputClient(InputClientsPtr * other) |
| 2436 | { |
| 2437 | xi2mask_free(&(*other)->xi2mask); |
| 2438 | free(*other); |
| 2439 | *other = NULL; |
| 2440 | } |
| 2441 | |
| 2442 | static InputClientsPtr |
| 2443 | AllocInputClient(void) |
| 2444 | { |
| 2445 | return calloc(1, sizeof(InputClients)); |
| 2446 | } |
| 2447 | |
| 2448 | int |
| 2449 | AddExtensionClient(WindowPtr pWin, ClientPtr client, Mask mask, int mskidx) |
| 2450 | { |
| 2451 | InputClientsPtr others; |
| 2452 | |
| 2453 | if (!pWin->optional && !MakeWindowOptional(pWin)) |
| 2454 | return BadAlloc; |
| 2455 | others = AllocInputClient(); |
| 2456 | if (!others) |
| 2457 | return BadAlloc; |
| 2458 | if (!pWin->optional->inputMasks && !MakeInputMasks(pWin)) |
| 2459 | goto bail; |
| 2460 | others->xi2mask = xi2mask_new(); |
| 2461 | if (!others->xi2mask) |
| 2462 | goto bail; |
| 2463 | others->mask[mskidx] = mask; |
| 2464 | others->resource = FakeClientID(client->index); |
| 2465 | others->next = pWin->optional->inputMasks->inputClients; |
| 2466 | pWin->optional->inputMasks->inputClients = others; |
| 2467 | if (!AddResource(others->resource, RT_INPUTCLIENT, (pointer) pWin)) |
| 2468 | goto bail; |
| 2469 | return Success; |
| 2470 | |
| 2471 | bail: |
| 2472 | FreeInputClient(&others); |
| 2473 | return BadAlloc; |
| 2474 | } |
| 2475 | |
| 2476 | static Bool |
| 2477 | MakeInputMasks(WindowPtr pWin) |
| 2478 | { |
| 2479 | struct _OtherInputMasks *imasks; |
| 2480 | |
| 2481 | imasks = calloc(1, sizeof(struct _OtherInputMasks)); |
| 2482 | if (!imasks) |
| 2483 | return FALSE; |
| 2484 | imasks->xi2mask = xi2mask_new(); |
| 2485 | if (!imasks->xi2mask) { |
| 2486 | free(imasks); |
| 2487 | return FALSE; |
| 2488 | } |
| 2489 | pWin->optional->inputMasks = imasks; |
| 2490 | return TRUE; |
| 2491 | } |
| 2492 | |
| 2493 | static void |
| 2494 | FreeInputMask(OtherInputMasks ** imask) |
| 2495 | { |
| 2496 | xi2mask_free(&(*imask)->xi2mask); |
| 2497 | free(*imask); |
| 2498 | *imask = NULL; |
| 2499 | } |
| 2500 | |
| 2501 | void |
| 2502 | RecalculateDeviceDeliverableEvents(WindowPtr pWin) |
| 2503 | { |
| 2504 | InputClientsPtr others; |
| 2505 | struct _OtherInputMasks *inputMasks; /* default: NULL */ |
| 2506 | WindowPtr pChild, tmp; |
| 2507 | int i; |
| 2508 | |
| 2509 | pChild = pWin; |
| 2510 | while (1) { |
| 2511 | if ((inputMasks = wOtherInputMasks(pChild)) != 0) { |
| 2512 | xi2mask_zero(inputMasks->xi2mask, -1); |
| 2513 | for (others = inputMasks->inputClients; others; |
| 2514 | others = others->next) { |
| 2515 | for (i = 0; i < EMASKSIZE; i++) |
| 2516 | inputMasks->inputEvents[i] |= others->mask[i]; |
| 2517 | xi2mask_merge(inputMasks->xi2mask, others->xi2mask); |
| 2518 | } |
| 2519 | for (i = 0; i < EMASKSIZE; i++) |
| 2520 | inputMasks->deliverableEvents[i] = inputMasks->inputEvents[i]; |
| 2521 | for (tmp = pChild->parent; tmp; tmp = tmp->parent) |
| 2522 | if (wOtherInputMasks(tmp)) |
| 2523 | for (i = 0; i < EMASKSIZE; i++) |
| 2524 | inputMasks->deliverableEvents[i] |= |
| 2525 | (wOtherInputMasks(tmp)->deliverableEvents[i] |
| 2526 | & ~inputMasks->dontPropagateMask[i] & |
| 2527 | PropagateMask[i]); |
| 2528 | } |
| 2529 | if (pChild->firstChild) { |
| 2530 | pChild = pChild->firstChild; |
| 2531 | continue; |
| 2532 | } |
| 2533 | while (!pChild->nextSib && (pChild != pWin)) |
| 2534 | pChild = pChild->parent; |
| 2535 | if (pChild == pWin) |
| 2536 | break; |
| 2537 | pChild = pChild->nextSib; |
| 2538 | } |
| 2539 | } |
| 2540 | |
| 2541 | int |
| 2542 | InputClientGone(WindowPtr pWin, XID id) |
| 2543 | { |
| 2544 | InputClientsPtr other, prev; |
| 2545 | |
| 2546 | if (!wOtherInputMasks(pWin)) |
| 2547 | return Success; |
| 2548 | prev = 0; |
| 2549 | for (other = wOtherInputMasks(pWin)->inputClients; other; |
| 2550 | other = other->next) { |
| 2551 | if (other->resource == id) { |
| 2552 | if (prev) { |
| 2553 | prev->next = other->next; |
| 2554 | FreeInputClient(&other); |
| 2555 | } |
| 2556 | else if (!(other->next)) { |
| 2557 | if (ShouldFreeInputMasks(pWin, TRUE)) { |
| 2558 | OtherInputMasks *mask = wOtherInputMasks(pWin); |
| 2559 | |
| 2560 | mask->inputClients = other->next; |
| 2561 | FreeInputMask(&mask); |
| 2562 | pWin->optional->inputMasks = (OtherInputMasks *) NULL; |
| 2563 | CheckWindowOptionalNeed(pWin); |
| 2564 | FreeInputClient(&other); |
| 2565 | } |
| 2566 | else { |
| 2567 | other->resource = FakeClientID(0); |
| 2568 | if (!AddResource(other->resource, RT_INPUTCLIENT, |
| 2569 | (pointer) pWin)) |
| 2570 | return BadAlloc; |
| 2571 | } |
| 2572 | } |
| 2573 | else { |
| 2574 | wOtherInputMasks(pWin)->inputClients = other->next; |
| 2575 | FreeInputClient(&other); |
| 2576 | } |
| 2577 | RecalculateDeviceDeliverableEvents(pWin); |
| 2578 | return Success; |
| 2579 | } |
| 2580 | prev = other; |
| 2581 | } |
| 2582 | FatalError("client not on device event list"); |
| 2583 | } |
| 2584 | |
| 2585 | /** |
| 2586 | * Search for window in each touch trace for each device. Remove the window |
| 2587 | * and all its subwindows from the trace when found. The initial window |
| 2588 | * order is preserved. |
| 2589 | */ |
| 2590 | void |
| 2591 | WindowGone(WindowPtr win) |
| 2592 | { |
| 2593 | DeviceIntPtr dev; |
| 2594 | |
| 2595 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 2596 | TouchClassPtr t = dev->touch; |
| 2597 | int i; |
| 2598 | |
| 2599 | if (!t) |
| 2600 | continue; |
| 2601 | |
| 2602 | for (i = 0; i < t->num_touches; i++) { |
| 2603 | SpritePtr sprite = &t->touches[i].sprite; |
| 2604 | int j; |
| 2605 | |
| 2606 | for (j = 0; j < sprite->spriteTraceGood; j++) { |
| 2607 | if (sprite->spriteTrace[j] == win) { |
| 2608 | sprite->spriteTraceGood = j; |
| 2609 | break; |
| 2610 | } |
| 2611 | } |
| 2612 | } |
| 2613 | } |
| 2614 | } |
| 2615 | |
| 2616 | int |
| 2617 | SendEvent(ClientPtr client, DeviceIntPtr d, Window dest, Bool propagate, |
| 2618 | xEvent *ev, Mask mask, int count) |
| 2619 | { |
| 2620 | WindowPtr pWin; |
| 2621 | WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */ |
| 2622 | WindowPtr spriteWin = GetSpriteWindow(d); |
| 2623 | |
| 2624 | if (dest == PointerWindow) |
| 2625 | pWin = spriteWin; |
| 2626 | else if (dest == InputFocus) { |
| 2627 | WindowPtr inputFocus; |
| 2628 | |
| 2629 | if (!d->focus) |
| 2630 | inputFocus = spriteWin; |
| 2631 | else |
| 2632 | inputFocus = d->focus->win; |
| 2633 | |
| 2634 | if (inputFocus == FollowKeyboardWin) |
| 2635 | inputFocus = inputInfo.keyboard->focus->win; |
| 2636 | |
| 2637 | if (inputFocus == NoneWin) |
| 2638 | return Success; |
| 2639 | |
| 2640 | /* If the input focus is PointerRootWin, send the event to where |
| 2641 | * the pointer is if possible, then perhaps propogate up to root. */ |
| 2642 | if (inputFocus == PointerRootWin) |
| 2643 | inputFocus = GetCurrentRootWindow(d); |
| 2644 | |
| 2645 | if (IsParent(inputFocus, spriteWin)) { |
| 2646 | effectiveFocus = inputFocus; |
| 2647 | pWin = spriteWin; |
| 2648 | } |
| 2649 | else |
| 2650 | effectiveFocus = pWin = inputFocus; |
| 2651 | } |
| 2652 | else |
| 2653 | dixLookupWindow(&pWin, dest, client, DixSendAccess); |
| 2654 | if (!pWin) |
| 2655 | return BadWindow; |
| 2656 | if ((propagate != xFalse) && (propagate != xTrue)) { |
| 2657 | client->errorValue = propagate; |
| 2658 | return BadValue; |
| 2659 | } |
| 2660 | ev->u.u.type |= 0x80; |
| 2661 | if (propagate) { |
| 2662 | for (; pWin; pWin = pWin->parent) { |
| 2663 | if (DeliverEventsToWindow(d, pWin, ev, count, mask, NullGrab)) |
| 2664 | return Success; |
| 2665 | if (pWin == effectiveFocus) |
| 2666 | return Success; |
| 2667 | if (wOtherInputMasks(pWin)) |
| 2668 | mask &= ~wOtherInputMasks(pWin)->dontPropagateMask[d->id]; |
| 2669 | if (!mask) |
| 2670 | break; |
| 2671 | } |
| 2672 | } |
| 2673 | else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, ev, count)) |
| 2674 | DeliverEventsToWindow(d, pWin, ev, count, mask, NullGrab); |
| 2675 | return Success; |
| 2676 | } |
| 2677 | |
| 2678 | int |
| 2679 | SetButtonMapping(ClientPtr client, DeviceIntPtr dev, int nElts, BYTE * map) |
| 2680 | { |
| 2681 | int i; |
| 2682 | ButtonClassPtr b = dev->button; |
| 2683 | |
| 2684 | if (b == NULL) |
| 2685 | return BadMatch; |
| 2686 | |
| 2687 | if (nElts != b->numButtons) { |
| 2688 | client->errorValue = nElts; |
| 2689 | return BadValue; |
| 2690 | } |
| 2691 | if (BadDeviceMap(&map[0], nElts, 1, 255, &client->errorValue)) |
| 2692 | return BadValue; |
| 2693 | for (i = 0; i < nElts; i++) |
| 2694 | if ((b->map[i + 1] != map[i]) && BitIsOn(b->down, i + 1)) |
| 2695 | return MappingBusy; |
| 2696 | for (i = 0; i < nElts; i++) |
| 2697 | b->map[i + 1] = map[i]; |
| 2698 | return Success; |
| 2699 | } |
| 2700 | |
| 2701 | int |
| 2702 | ChangeKeyMapping(ClientPtr client, |
| 2703 | DeviceIntPtr dev, |
| 2704 | unsigned len, |
| 2705 | int type, |
| 2706 | KeyCode firstKeyCode, |
| 2707 | CARD8 keyCodes, CARD8 keySymsPerKeyCode, KeySym * map) |
| 2708 | { |
| 2709 | KeySymsRec keysyms; |
| 2710 | KeyClassPtr k = dev->key; |
| 2711 | |
| 2712 | if (k == NULL) |
| 2713 | return BadMatch; |
| 2714 | |
| 2715 | if (len != (keyCodes * keySymsPerKeyCode)) |
| 2716 | return BadLength; |
| 2717 | |
| 2718 | if ((firstKeyCode < k->xkbInfo->desc->min_key_code) || |
| 2719 | (firstKeyCode + keyCodes - 1 > k->xkbInfo->desc->max_key_code)) { |
| 2720 | client->errorValue = firstKeyCode; |
| 2721 | return BadValue; |
| 2722 | } |
| 2723 | if (keySymsPerKeyCode == 0) { |
| 2724 | client->errorValue = 0; |
| 2725 | return BadValue; |
| 2726 | } |
| 2727 | keysyms.minKeyCode = firstKeyCode; |
| 2728 | keysyms.maxKeyCode = firstKeyCode + keyCodes - 1; |
| 2729 | keysyms.mapWidth = keySymsPerKeyCode; |
| 2730 | keysyms.map = map; |
| 2731 | |
| 2732 | XkbApplyMappingChange(dev, &keysyms, firstKeyCode, keyCodes, NULL, |
| 2733 | serverClient); |
| 2734 | |
| 2735 | return Success; |
| 2736 | } |
| 2737 | |
| 2738 | static void |
| 2739 | DeleteDeviceFromAnyExtEvents(WindowPtr pWin, DeviceIntPtr dev) |
| 2740 | { |
| 2741 | WindowPtr parent; |
| 2742 | |
| 2743 | /* Deactivate any grabs performed on this window, before making |
| 2744 | * any input focus changes. |
| 2745 | * Deactivating a device grab should cause focus events. */ |
| 2746 | |
| 2747 | if (dev->deviceGrab.grab && (dev->deviceGrab.grab->window == pWin)) |
| 2748 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 2749 | |
| 2750 | /* If the focus window is a root window (ie. has no parent) |
| 2751 | * then don't delete the focus from it. */ |
| 2752 | |
| 2753 | if (dev->focus && (pWin == dev->focus->win) && (pWin->parent != NullWindow)) { |
| 2754 | int focusEventMode = NotifyNormal; |
| 2755 | |
| 2756 | /* If a grab is in progress, then alter the mode of focus events. */ |
| 2757 | |
| 2758 | if (dev->deviceGrab.grab) |
| 2759 | focusEventMode = NotifyWhileGrabbed; |
| 2760 | |
| 2761 | switch (dev->focus->revert) { |
| 2762 | case RevertToNone: |
| 2763 | if (!ActivateFocusInGrab(dev, pWin, NoneWin)) |
| 2764 | DoFocusEvents(dev, pWin, NoneWin, focusEventMode); |
| 2765 | dev->focus->win = NoneWin; |
| 2766 | dev->focus->traceGood = 0; |
| 2767 | break; |
| 2768 | case RevertToParent: |
| 2769 | parent = pWin; |
| 2770 | do { |
| 2771 | parent = parent->parent; |
| 2772 | dev->focus->traceGood--; |
| 2773 | } |
| 2774 | while (!parent->realized); |
| 2775 | if (!ActivateFocusInGrab(dev, pWin, parent)) |
| 2776 | DoFocusEvents(dev, pWin, parent, focusEventMode); |
| 2777 | dev->focus->win = parent; |
| 2778 | dev->focus->revert = RevertToNone; |
| 2779 | break; |
| 2780 | case RevertToPointerRoot: |
| 2781 | if (!ActivateFocusInGrab(dev, pWin, PointerRootWin)) |
| 2782 | DoFocusEvents(dev, pWin, PointerRootWin, focusEventMode); |
| 2783 | dev->focus->win = PointerRootWin; |
| 2784 | dev->focus->traceGood = 0; |
| 2785 | break; |
| 2786 | case RevertToFollowKeyboard: |
| 2787 | { |
| 2788 | DeviceIntPtr kbd = GetMaster(dev, MASTER_KEYBOARD); |
| 2789 | |
| 2790 | if (!kbd || (kbd == dev && kbd != inputInfo.keyboard)) |
| 2791 | kbd = inputInfo.keyboard; |
| 2792 | if (kbd->focus->win) { |
| 2793 | if (!ActivateFocusInGrab(dev, pWin, kbd->focus->win)) |
| 2794 | DoFocusEvents(dev, pWin, kbd->focus->win, focusEventMode); |
| 2795 | dev->focus->win = FollowKeyboardWin; |
| 2796 | dev->focus->traceGood = 0; |
| 2797 | } |
| 2798 | else { |
| 2799 | if (!ActivateFocusInGrab(dev, pWin, NoneWin)) |
| 2800 | DoFocusEvents(dev, pWin, NoneWin, focusEventMode); |
| 2801 | dev->focus->win = NoneWin; |
| 2802 | dev->focus->traceGood = 0; |
| 2803 | } |
| 2804 | } |
| 2805 | break; |
| 2806 | } |
| 2807 | } |
| 2808 | |
| 2809 | if (dev->valuator) |
| 2810 | if (dev->valuator->motionHintWindow == pWin) |
| 2811 | dev->valuator->motionHintWindow = NullWindow; |
| 2812 | } |
| 2813 | |
| 2814 | void |
| 2815 | DeleteWindowFromAnyExtEvents(WindowPtr pWin, Bool freeResources) |
| 2816 | { |
| 2817 | int i; |
| 2818 | DeviceIntPtr dev; |
| 2819 | InputClientsPtr ic; |
| 2820 | struct _OtherInputMasks *inputMasks; |
| 2821 | |
| 2822 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 2823 | DeleteDeviceFromAnyExtEvents(pWin, dev); |
| 2824 | } |
| 2825 | |
| 2826 | for (dev = inputInfo.off_devices; dev; dev = dev->next) |
| 2827 | DeleteDeviceFromAnyExtEvents(pWin, dev); |
| 2828 | |
| 2829 | if (freeResources) |
| 2830 | while ((inputMasks = wOtherInputMasks(pWin)) != 0) { |
| 2831 | ic = inputMasks->inputClients; |
| 2832 | for (i = 0; i < EMASKSIZE; i++) |
| 2833 | inputMasks->dontPropagateMask[i] = 0; |
| 2834 | FreeResource(ic->resource, RT_NONE); |
| 2835 | } |
| 2836 | } |
| 2837 | |
| 2838 | int |
| 2839 | MaybeSendDeviceMotionNotifyHint(deviceKeyButtonPointer *pEvents, Mask mask) |
| 2840 | { |
| 2841 | DeviceIntPtr dev; |
| 2842 | |
| 2843 | dixLookupDevice(&dev, pEvents->deviceid & DEVICE_BITS, serverClient, |
| 2844 | DixReadAccess); |
| 2845 | if (!dev) |
| 2846 | return 0; |
| 2847 | |
| 2848 | if (pEvents->type == DeviceMotionNotify) { |
| 2849 | if (mask & DevicePointerMotionHintMask) { |
| 2850 | if (WID(dev->valuator->motionHintWindow) == pEvents->event) { |
| 2851 | return 1; /* don't send, but pretend we did */ |
| 2852 | } |
| 2853 | pEvents->detail = NotifyHint; |
| 2854 | } |
| 2855 | else { |
| 2856 | pEvents->detail = NotifyNormal; |
| 2857 | } |
| 2858 | } |
| 2859 | return 0; |
| 2860 | } |
| 2861 | |
| 2862 | void |
| 2863 | CheckDeviceGrabAndHintWindow(WindowPtr pWin, int type, |
| 2864 | deviceKeyButtonPointer *xE, GrabPtr grab, |
| 2865 | ClientPtr client, Mask deliveryMask) |
| 2866 | { |
| 2867 | DeviceIntPtr dev; |
| 2868 | |
| 2869 | dixLookupDevice(&dev, xE->deviceid & DEVICE_BITS, serverClient, |
| 2870 | DixGrabAccess); |
| 2871 | if (!dev) |
| 2872 | return; |
| 2873 | |
| 2874 | if (type == DeviceMotionNotify) |
| 2875 | dev->valuator->motionHintWindow = pWin; |
| 2876 | else if ((type == DeviceButtonPress) && (!grab) && |
| 2877 | (deliveryMask & DeviceButtonGrabMask)) { |
| 2878 | GrabPtr tempGrab; |
| 2879 | |
| 2880 | tempGrab = AllocGrab(NULL); |
| 2881 | if (!tempGrab) |
| 2882 | return; |
| 2883 | |
| 2884 | tempGrab->device = dev; |
| 2885 | tempGrab->resource = client->clientAsMask; |
| 2886 | tempGrab->window = pWin; |
| 2887 | tempGrab->ownerEvents = |
| 2888 | (deliveryMask & DeviceOwnerGrabButtonMask) ? TRUE : FALSE; |
| 2889 | tempGrab->eventMask = deliveryMask; |
| 2890 | tempGrab->keyboardMode = GrabModeAsync; |
| 2891 | tempGrab->pointerMode = GrabModeAsync; |
| 2892 | tempGrab->confineTo = NullWindow; |
| 2893 | tempGrab->cursor = NullCursor; |
| 2894 | tempGrab->next = NULL; |
| 2895 | (*dev->deviceGrab.ActivateGrab) (dev, tempGrab, currentTime, TRUE); |
| 2896 | FreeGrab(tempGrab); |
| 2897 | } |
| 2898 | } |
| 2899 | |
| 2900 | static Mask |
| 2901 | DeviceEventMaskForClient(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client) |
| 2902 | { |
| 2903 | InputClientsPtr other; |
| 2904 | |
| 2905 | if (!wOtherInputMasks(pWin)) |
| 2906 | return 0; |
| 2907 | for (other = wOtherInputMasks(pWin)->inputClients; other; |
| 2908 | other = other->next) { |
| 2909 | if (SameClient(other, client)) |
| 2910 | return other->mask[dev->id]; |
| 2911 | } |
| 2912 | return 0; |
| 2913 | } |
| 2914 | |
| 2915 | void |
| 2916 | MaybeStopDeviceHint(DeviceIntPtr dev, ClientPtr client) |
| 2917 | { |
| 2918 | WindowPtr pWin; |
| 2919 | GrabPtr grab = dev->deviceGrab.grab; |
| 2920 | |
| 2921 | pWin = dev->valuator->motionHintWindow; |
| 2922 | |
| 2923 | if ((grab && SameClient(grab, client) && |
| 2924 | ((grab->eventMask & DevicePointerMotionHintMask) || |
| 2925 | (grab->ownerEvents && |
| 2926 | (DeviceEventMaskForClient(dev, pWin, client) & |
| 2927 | DevicePointerMotionHintMask)))) || |
| 2928 | (!grab && |
| 2929 | (DeviceEventMaskForClient(dev, pWin, client) & |
| 2930 | DevicePointerMotionHintMask))) |
| 2931 | dev->valuator->motionHintWindow = NullWindow; |
| 2932 | } |
| 2933 | |
| 2934 | int |
| 2935 | DeviceEventSuppressForWindow(WindowPtr pWin, ClientPtr client, Mask mask, |
| 2936 | int maskndx) |
| 2937 | { |
| 2938 | struct _OtherInputMasks *inputMasks = wOtherInputMasks(pWin); |
| 2939 | |
| 2940 | if (mask & ~PropagateMask[maskndx]) { |
| 2941 | client->errorValue = mask; |
| 2942 | return BadValue; |
| 2943 | } |
| 2944 | |
| 2945 | if (mask == 0) { |
| 2946 | if (inputMasks) |
| 2947 | inputMasks->dontPropagateMask[maskndx] = mask; |
| 2948 | } |
| 2949 | else { |
| 2950 | if (!inputMasks) |
| 2951 | AddExtensionClient(pWin, client, 0, 0); |
| 2952 | inputMasks = wOtherInputMasks(pWin); |
| 2953 | inputMasks->dontPropagateMask[maskndx] = mask; |
| 2954 | } |
| 2955 | RecalculateDeviceDeliverableEvents(pWin); |
| 2956 | if (ShouldFreeInputMasks(pWin, FALSE)) |
| 2957 | FreeResource(inputMasks->inputClients->resource, RT_NONE); |
| 2958 | return Success; |
| 2959 | } |
| 2960 | |
| 2961 | Bool |
| 2962 | ShouldFreeInputMasks(WindowPtr pWin, Bool ignoreSelectedEvents) |
| 2963 | { |
| 2964 | int i; |
| 2965 | Mask allInputEventMasks = 0; |
| 2966 | struct _OtherInputMasks *inputMasks = wOtherInputMasks(pWin); |
| 2967 | |
| 2968 | for (i = 0; i < EMASKSIZE; i++) |
| 2969 | allInputEventMasks |= inputMasks->dontPropagateMask[i]; |
| 2970 | if (!ignoreSelectedEvents) |
| 2971 | for (i = 0; i < EMASKSIZE; i++) |
| 2972 | allInputEventMasks |= inputMasks->inputEvents[i]; |
| 2973 | if (allInputEventMasks == 0) |
| 2974 | return TRUE; |
| 2975 | else |
| 2976 | return FALSE; |
| 2977 | } |
| 2978 | |
| 2979 | /*********************************************************************** |
| 2980 | * |
| 2981 | * Walk through the window tree, finding all clients that want to know |
| 2982 | * about the Event. |
| 2983 | * |
| 2984 | */ |
| 2985 | |
| 2986 | static void |
| 2987 | FindInterestedChildren(DeviceIntPtr dev, WindowPtr p1, Mask mask, |
| 2988 | xEvent *ev, int count) |
| 2989 | { |
| 2990 | WindowPtr p2; |
| 2991 | |
| 2992 | while (p1) { |
| 2993 | p2 = p1->firstChild; |
| 2994 | DeliverEventsToWindow(dev, p1, ev, count, mask, NullGrab); |
| 2995 | FindInterestedChildren(dev, p2, mask, ev, count); |
| 2996 | p1 = p1->nextSib; |
| 2997 | } |
| 2998 | } |
| 2999 | |
| 3000 | /*********************************************************************** |
| 3001 | * |
| 3002 | * Send an event to interested clients in all windows on all screens. |
| 3003 | * |
| 3004 | */ |
| 3005 | |
| 3006 | void |
| 3007 | SendEventToAllWindows(DeviceIntPtr dev, Mask mask, xEvent *ev, int count) |
| 3008 | { |
| 3009 | int i; |
| 3010 | WindowPtr pWin, p1; |
| 3011 | |
| 3012 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 3013 | pWin = screenInfo.screens[i]->root; |
| 3014 | if (!pWin) |
| 3015 | continue; |
| 3016 | DeliverEventsToWindow(dev, pWin, ev, count, mask, NullGrab); |
| 3017 | p1 = pWin->firstChild; |
| 3018 | FindInterestedChildren(dev, p1, mask, ev, count); |
| 3019 | } |
| 3020 | } |
| 3021 | |
| 3022 | /** |
| 3023 | * Set the XI2 mask for the given client on the given window. |
| 3024 | * @param dev The device to set the mask for. |
| 3025 | * @param win The window to set the mask on. |
| 3026 | * @param client The client setting the mask. |
| 3027 | * @param len Number of bytes in mask. |
| 3028 | * @param mask Event mask in the form of (1 << eventtype) |
| 3029 | */ |
| 3030 | int |
| 3031 | XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client, |
| 3032 | unsigned int len, unsigned char *mask) |
| 3033 | { |
| 3034 | OtherInputMasks *masks; |
| 3035 | InputClientsPtr others = NULL; |
| 3036 | |
| 3037 | masks = wOtherInputMasks(win); |
| 3038 | if (masks) { |
| 3039 | for (others = wOtherInputMasks(win)->inputClients; others; |
| 3040 | others = others->next) { |
| 3041 | if (SameClient(others, client)) { |
| 3042 | xi2mask_zero(others->xi2mask, dev->id); |
| 3043 | break; |
| 3044 | } |
| 3045 | } |
| 3046 | } |
| 3047 | |
| 3048 | if (len && !others) { |
| 3049 | if (AddExtensionClient(win, client, 0, 0) != Success) |
| 3050 | return BadAlloc; |
| 3051 | others = wOtherInputMasks(win)->inputClients; |
| 3052 | } |
| 3053 | |
| 3054 | if (others) { |
| 3055 | xi2mask_zero(others->xi2mask, dev->id); |
| 3056 | len = min(len, xi2mask_mask_size(others->xi2mask)); |
| 3057 | } |
| 3058 | |
| 3059 | if (len) { |
| 3060 | xi2mask_set_one_mask(others->xi2mask, dev->id, mask, len); |
| 3061 | } |
| 3062 | |
| 3063 | RecalculateDeviceDeliverableEvents(win); |
| 3064 | |
| 3065 | return Success; |
| 3066 | } |