| 1 | /************************************************************ |
| 2 | |
| 3 | Copyright 1987, 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 1987 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 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 Digital not be |
| 34 | used in advertising or publicity pertaining to distribution of the |
| 35 | software without specific, written prior permission. |
| 36 | |
| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 39 | DIGITAL 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 | /* The panoramix components contained the following notice */ |
| 48 | /***************************************************************** |
| 49 | |
| 50 | Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. |
| 51 | |
| 52 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 53 | of this software and associated documentation files (the "Software"), to deal |
| 54 | in the Software without restriction, including without limitation the rights |
| 55 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 56 | copies of the Software. |
| 57 | |
| 58 | The above copyright notice and this permission notice shall be included in |
| 59 | all copies or substantial portions of the Software. |
| 60 | |
| 61 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 62 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 63 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 64 | DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, |
| 65 | BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, |
| 66 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR |
| 67 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 68 | |
| 69 | Except as contained in this notice, the name of Digital Equipment Corporation |
| 70 | shall not be used in advertising or otherwise to promote the sale, use or other |
| 71 | dealings in this Software without prior written authorization from Digital |
| 72 | Equipment Corporation. |
| 73 | |
| 74 | ******************************************************************/ |
| 75 | |
| 76 | /* |
| 77 | * Copyright (c) 2003-2005, Oracle and/or its affiliates. All rights reserved. |
| 78 | * |
| 79 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 80 | * copy of this software and associated documentation files (the "Software"), |
| 81 | * to deal in the Software without restriction, including without limitation |
| 82 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 83 | * and/or sell copies of the Software, and to permit persons to whom the |
| 84 | * Software is furnished to do so, subject to the following conditions: |
| 85 | * |
| 86 | * The above copyright notice and this permission notice (including the next |
| 87 | * paragraph) shall be included in all copies or substantial portions of the |
| 88 | * Software. |
| 89 | * |
| 90 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 91 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 92 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 93 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 94 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 95 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 96 | * DEALINGS IN THE SOFTWARE. |
| 97 | */ |
| 98 | |
| 99 | /** @file events.c |
| 100 | * This file handles event delivery and a big part of the server-side protocol |
| 101 | * handling (the parts for input devices). |
| 102 | */ |
| 103 | |
| 104 | #ifdef HAVE_DIX_CONFIG_H |
| 105 | #include <dix-config.h> |
| 106 | #endif |
| 107 | |
| 108 | #include <X11/X.h> |
| 109 | #include "misc.h" |
| 110 | #include "resource.h" |
| 111 | #include <X11/Xproto.h> |
| 112 | #include "windowstr.h" |
| 113 | #include "inputstr.h" |
| 114 | #include "inpututils.h" |
| 115 | #include "scrnintstr.h" |
| 116 | #include "cursorstr.h" |
| 117 | |
| 118 | #include "dixstruct.h" |
| 119 | #ifdef PANORAMIX |
| 120 | #include "panoramiX.h" |
| 121 | #include "panoramiXsrv.h" |
| 122 | #endif |
| 123 | #include "globals.h" |
| 124 | |
| 125 | #include <X11/extensions/XKBproto.h> |
| 126 | #include "xkbsrv.h" |
| 127 | #include "xace.h" |
| 128 | |
| 129 | #ifdef XSERVER_DTRACE |
| 130 | #include <sys/types.h> |
| 131 | typedef const char *string; |
| 132 | |
| 133 | #include "Xserver-dtrace.h" |
| 134 | #endif |
| 135 | |
| 136 | #include <X11/extensions/XIproto.h> |
| 137 | #include <X11/extensions/XI2proto.h> |
| 138 | #include <X11/extensions/XI.h> |
| 139 | #include <X11/extensions/XI2.h> |
| 140 | #include "exglobals.h" |
| 141 | #include "exevents.h" |
| 142 | #include "extnsionst.h" |
| 143 | |
| 144 | #include "dixevents.h" |
| 145 | #include "dixgrabs.h" |
| 146 | #include "dispatch.h" |
| 147 | |
| 148 | #include <X11/extensions/ge.h> |
| 149 | #include "geext.h" |
| 150 | #include "geint.h" |
| 151 | |
| 152 | #include "eventstr.h" |
| 153 | #include "enterleave.h" |
| 154 | #include "eventconvert.h" |
| 155 | #include "mi.h" |
| 156 | |
| 157 | /* Extension events type numbering starts at EXTENSION_EVENT_BASE. */ |
| 158 | #define NoSuchEvent 0x80000000 /* so doesn't match NoEventMask */ |
| 159 | #define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask ) |
| 160 | #define AllButtonsMask ( \ |
| 161 | Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask ) |
| 162 | #define MotionMask ( \ |
| 163 | PointerMotionMask | Button1MotionMask | \ |
| 164 | Button2MotionMask | Button3MotionMask | Button4MotionMask | \ |
| 165 | Button5MotionMask | ButtonMotionMask ) |
| 166 | #define PropagateMask ( \ |
| 167 | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | \ |
| 168 | MotionMask ) |
| 169 | #define PointerGrabMask ( \ |
| 170 | ButtonPressMask | ButtonReleaseMask | \ |
| 171 | EnterWindowMask | LeaveWindowMask | \ |
| 172 | PointerMotionHintMask | KeymapStateMask | \ |
| 173 | MotionMask ) |
| 174 | #define AllModifiersMask ( \ |
| 175 | ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \ |
| 176 | Mod3Mask | Mod4Mask | Mod5Mask ) |
| 177 | #define LastEventMask OwnerGrabButtonMask |
| 178 | #define AllEventMasks (LastEventMask|(LastEventMask-1)) |
| 179 | |
| 180 | /* @return the core event type or 0 if the event is not a core event */ |
| 181 | static inline int |
| 182 | core_get_type(const xEvent *event) |
| 183 | { |
| 184 | int type = event->u.u.type; |
| 185 | |
| 186 | return ((type & EXTENSION_EVENT_BASE) || type == GenericEvent) ? 0 : type; |
| 187 | } |
| 188 | |
| 189 | /* @return the XI2 event type or 0 if the event is not a XI2 event */ |
| 190 | static inline int |
| 191 | xi2_get_type(const xEvent *event) |
| 192 | { |
| 193 | const xGenericEvent *e = (const xGenericEvent *) event; |
| 194 | |
| 195 | return (e->type != GenericEvent || |
| 196 | e->extension != IReqCode) ? 0 : e->evtype; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * Used to indicate a implicit passive grab created by a ButtonPress event. |
| 201 | * See DeliverEventsToWindow(). |
| 202 | */ |
| 203 | #define ImplicitGrabMask (1 << 7) |
| 204 | |
| 205 | #define WID(w) ((w) ? ((w)->drawable.id) : 0) |
| 206 | |
| 207 | #define XE_KBPTR (xE->u.keyButtonPointer) |
| 208 | |
| 209 | CallbackListPtr EventCallback; |
| 210 | CallbackListPtr DeviceEventCallback; |
| 211 | |
| 212 | #define DNPMCOUNT 8 |
| 213 | |
| 214 | Mask DontPropagateMasks[DNPMCOUNT]; |
| 215 | static int DontPropagateRefCnts[DNPMCOUNT]; |
| 216 | |
| 217 | static void CheckVirtualMotion(DeviceIntPtr pDev, QdEventPtr qe, |
| 218 | WindowPtr pWin); |
| 219 | static void CheckPhysLimits(DeviceIntPtr pDev, CursorPtr cursor, |
| 220 | Bool generateEvents, Bool confineToScreen, |
| 221 | ScreenPtr pScreen); |
| 222 | static Bool IsWrongPointerBarrierClient(ClientPtr client, |
| 223 | DeviceIntPtr dev, |
| 224 | xEvent *event); |
| 225 | |
| 226 | /** Key repeat hack. Do not use but in TryClientEvents */ |
| 227 | extern BOOL EventIsKeyRepeat(xEvent *event); |
| 228 | |
| 229 | /** |
| 230 | * Main input device struct. |
| 231 | * inputInfo.pointer |
| 232 | * is the core pointer. Referred to as "virtual core pointer", "VCP", |
| 233 | * "core pointer" or inputInfo.pointer. The VCP is the first master |
| 234 | * pointer device and cannot be deleted. |
| 235 | * |
| 236 | * inputInfo.keyboard |
| 237 | * is the core keyboard ("virtual core keyboard", "VCK", "core keyboard"). |
| 238 | * See inputInfo.pointer. |
| 239 | * |
| 240 | * inputInfo.devices |
| 241 | * linked list containing all devices including VCP and VCK. |
| 242 | * |
| 243 | * inputInfo.off_devices |
| 244 | * Devices that have not been initialized and are thus turned off. |
| 245 | * |
| 246 | * inputInfo.numDevices |
| 247 | * Total number of devices. |
| 248 | * |
| 249 | * inputInfo.all_devices |
| 250 | * Virtual device used for XIAllDevices passive grabs. This device is |
| 251 | * not part of the inputInfo.devices list and mostly unset except for |
| 252 | * the deviceid. It exists because passivegrabs need a valid device |
| 253 | * reference. |
| 254 | * |
| 255 | * inputInfo.all_master_devices |
| 256 | * Virtual device used for XIAllMasterDevices passive grabs. This device |
| 257 | * is not part of the inputInfo.devices list and mostly unset except for |
| 258 | * the deviceid. It exists because passivegrabs need a valid device |
| 259 | * reference. |
| 260 | */ |
| 261 | InputInfo inputInfo; |
| 262 | |
| 263 | EventSyncInfoRec syncEvents; |
| 264 | |
| 265 | static struct DeviceEventTime { |
| 266 | Bool reset; |
| 267 | TimeStamp time; |
| 268 | } lastDeviceEventTime[MAXDEVICES]; |
| 269 | |
| 270 | /** |
| 271 | * The root window the given device is currently on. |
| 272 | */ |
| 273 | #define RootWindow(sprite) sprite->spriteTrace[0] |
| 274 | |
| 275 | static xEvent *swapEvent = NULL; |
| 276 | static int swapEventLen = 0; |
| 277 | |
| 278 | void |
| 279 | NotImplemented(xEvent *from, xEvent *to) |
| 280 | { |
| 281 | FatalError("Not implemented"); |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Convert the given event type from an XI event to a core event. |
| 286 | * @param[in] The XI 1.x event type. |
| 287 | * @return The matching core event type or 0 if there is none. |
| 288 | */ |
| 289 | int |
| 290 | XItoCoreType(int xitype) |
| 291 | { |
| 292 | int coretype = 0; |
| 293 | |
| 294 | if (xitype == DeviceMotionNotify) |
| 295 | coretype = MotionNotify; |
| 296 | else if (xitype == DeviceButtonPress) |
| 297 | coretype = ButtonPress; |
| 298 | else if (xitype == DeviceButtonRelease) |
| 299 | coretype = ButtonRelease; |
| 300 | else if (xitype == DeviceKeyPress) |
| 301 | coretype = KeyPress; |
| 302 | else if (xitype == DeviceKeyRelease) |
| 303 | coretype = KeyRelease; |
| 304 | |
| 305 | return coretype; |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * @return true if the device owns a cursor, false if device shares a cursor |
| 310 | * sprite with another device. |
| 311 | */ |
| 312 | Bool |
| 313 | DevHasCursor(DeviceIntPtr pDev) |
| 314 | { |
| 315 | return pDev->spriteInfo->spriteOwner; |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * @return true if a device is a pointer, check is the same as used by XI to |
| 320 | * fill the 'use' field. |
| 321 | */ |
| 322 | Bool |
| 323 | IsPointerDevice(DeviceIntPtr dev) |
| 324 | { |
| 325 | return (dev->type == MASTER_POINTER) || |
| 326 | (dev->valuator && dev->button) || (dev->valuator && !dev->key); |
| 327 | } |
| 328 | |
| 329 | /* |
| 330 | * @return true if a device is a keyboard, check is the same as used by XI to |
| 331 | * fill the 'use' field. |
| 332 | * |
| 333 | * Some pointer devices have keys as well (e.g. multimedia keys). Try to not |
| 334 | * count them as keyboard devices. |
| 335 | */ |
| 336 | Bool |
| 337 | IsKeyboardDevice(DeviceIntPtr dev) |
| 338 | { |
| 339 | return (dev->type == MASTER_KEYBOARD) || |
| 340 | ((dev->key && dev->kbdfeed) && !IsPointerDevice(dev)); |
| 341 | } |
| 342 | |
| 343 | Bool |
| 344 | IsMaster(DeviceIntPtr dev) |
| 345 | { |
| 346 | return dev->type == MASTER_POINTER || dev->type == MASTER_KEYBOARD; |
| 347 | } |
| 348 | |
| 349 | Bool |
| 350 | IsFloating(DeviceIntPtr dev) |
| 351 | { |
| 352 | return !IsMaster(dev) && GetMaster(dev, MASTER_KEYBOARD) == NULL; |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Max event opcode. |
| 357 | */ |
| 358 | extern int lastEvent; |
| 359 | |
| 360 | #define CantBeFiltered NoEventMask |
| 361 | /** |
| 362 | * Event masks for each event type. |
| 363 | * |
| 364 | * One set of filters for each device, initialized by memcpy of |
| 365 | * default_filter in InitEvents. |
| 366 | * |
| 367 | * Filters are used whether a given event may be delivered to a client, |
| 368 | * usually in the form of if (window-event-mask & filter); then deliver event. |
| 369 | * |
| 370 | * One notable filter is for PointerMotion/DevicePointerMotion events. Each |
| 371 | * time a button is pressed, the filter is modified to also contain the |
| 372 | * matching ButtonXMotion mask. |
| 373 | */ |
| 374 | Mask event_filters[MAXDEVICES][MAXEVENTS]; |
| 375 | |
| 376 | static const Mask default_filter[MAXEVENTS] = { |
| 377 | NoSuchEvent, /* 0 */ |
| 378 | NoSuchEvent, /* 1 */ |
| 379 | KeyPressMask, /* KeyPress */ |
| 380 | KeyReleaseMask, /* KeyRelease */ |
| 381 | ButtonPressMask, /* ButtonPress */ |
| 382 | ButtonReleaseMask, /* ButtonRelease */ |
| 383 | PointerMotionMask, /* MotionNotify (initial state) */ |
| 384 | EnterWindowMask, /* EnterNotify */ |
| 385 | LeaveWindowMask, /* LeaveNotify */ |
| 386 | FocusChangeMask, /* FocusIn */ |
| 387 | FocusChangeMask, /* FocusOut */ |
| 388 | KeymapStateMask, /* KeymapNotify */ |
| 389 | ExposureMask, /* Expose */ |
| 390 | CantBeFiltered, /* GraphicsExpose */ |
| 391 | CantBeFiltered, /* NoExpose */ |
| 392 | VisibilityChangeMask, /* VisibilityNotify */ |
| 393 | SubstructureNotifyMask, /* CreateNotify */ |
| 394 | StructureAndSubMask, /* DestroyNotify */ |
| 395 | StructureAndSubMask, /* UnmapNotify */ |
| 396 | StructureAndSubMask, /* MapNotify */ |
| 397 | SubstructureRedirectMask, /* MapRequest */ |
| 398 | StructureAndSubMask, /* ReparentNotify */ |
| 399 | StructureAndSubMask, /* ConfigureNotify */ |
| 400 | SubstructureRedirectMask, /* ConfigureRequest */ |
| 401 | StructureAndSubMask, /* GravityNotify */ |
| 402 | ResizeRedirectMask, /* ResizeRequest */ |
| 403 | StructureAndSubMask, /* CirculateNotify */ |
| 404 | SubstructureRedirectMask, /* CirculateRequest */ |
| 405 | PropertyChangeMask, /* PropertyNotify */ |
| 406 | CantBeFiltered, /* SelectionClear */ |
| 407 | CantBeFiltered, /* SelectionRequest */ |
| 408 | CantBeFiltered, /* SelectionNotify */ |
| 409 | ColormapChangeMask, /* ColormapNotify */ |
| 410 | CantBeFiltered, /* ClientMessage */ |
| 411 | CantBeFiltered /* MappingNotify */ |
| 412 | }; |
| 413 | |
| 414 | /** |
| 415 | * For the given event, return the matching event filter. This filter may then |
| 416 | * be AND'ed with the selected event mask. |
| 417 | * |
| 418 | * For XI2 events, the returned filter is simply the byte containing the event |
| 419 | * mask we're interested in. E.g. for a mask of (1 << 13), this would be |
| 420 | * byte[1]. |
| 421 | * |
| 422 | * @param[in] dev The device the event belongs to, may be NULL. |
| 423 | * @param[in] event The event to get the filter for. Only the type of the |
| 424 | * event matters, or the extension + evtype for GenericEvents. |
| 425 | * @return The filter mask for the given event. |
| 426 | * |
| 427 | * @see GetEventMask |
| 428 | */ |
| 429 | Mask |
| 430 | GetEventFilter(DeviceIntPtr dev, xEvent *event) |
| 431 | { |
| 432 | int evtype = 0; |
| 433 | |
| 434 | if (event->u.u.type != GenericEvent) |
| 435 | return event_get_filter_from_type(dev, event->u.u.type); |
| 436 | else if ((evtype = xi2_get_type(event))) |
| 437 | return event_get_filter_from_xi2type(evtype); |
| 438 | ErrorF("[dix] Unknown event type %d. No filter\n", event->u.u.type); |
| 439 | return 0; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * Return the single byte of the device's XI2 mask that contains the mask |
| 444 | * for the event_type. |
| 445 | */ |
| 446 | int |
| 447 | GetXI2MaskByte(XI2Mask *mask, DeviceIntPtr dev, int event_type) |
| 448 | { |
| 449 | /* we just return the matching filter because that's the only use |
| 450 | * for this mask anyway. |
| 451 | */ |
| 452 | if (xi2mask_isset(mask, dev, event_type)) |
| 453 | return event_get_filter_from_xi2type(event_type); |
| 454 | else |
| 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * @return TRUE if the mask is set for this event from this device on the |
| 460 | * window, or FALSE otherwise. |
| 461 | */ |
| 462 | Bool |
| 463 | WindowXI2MaskIsset(DeviceIntPtr dev, WindowPtr win, xEvent *ev) |
| 464 | { |
| 465 | OtherInputMasks *inputMasks = wOtherInputMasks(win); |
| 466 | int evtype; |
| 467 | |
| 468 | if (!inputMasks || xi2_get_type(ev) == 0) |
| 469 | return 0; |
| 470 | |
| 471 | evtype = ((xGenericEvent *) ev)->evtype; |
| 472 | |
| 473 | return xi2mask_isset(inputMasks->xi2mask, dev, evtype); |
| 474 | } |
| 475 | |
| 476 | Mask |
| 477 | GetEventMask(DeviceIntPtr dev, xEvent *event, InputClients * other) |
| 478 | { |
| 479 | int evtype; |
| 480 | |
| 481 | /* XI2 filters are only ever 8 bit, so let's return a 8 bit mask */ |
| 482 | if ((evtype = xi2_get_type(event))) { |
| 483 | return GetXI2MaskByte(other->xi2mask, dev, evtype); |
| 484 | } |
| 485 | else if (core_get_type(event) != 0) |
| 486 | return other->mask[XIAllDevices]; |
| 487 | else |
| 488 | return other->mask[dev->id]; |
| 489 | } |
| 490 | |
| 491 | static CARD8 criticalEvents[32] = { |
| 492 | 0x7c, 0x30, 0x40 /* key, button, expose, and configure events */ |
| 493 | }; |
| 494 | |
| 495 | static void |
| 496 | SyntheticMotion(DeviceIntPtr dev, int x, int y) |
| 497 | { |
| 498 | int screenno = 0; |
| 499 | |
| 500 | #ifdef PANORAMIX |
| 501 | if (!noPanoramiXExtension) |
| 502 | screenno = dev->spriteInfo->sprite->screen->myNum; |
| 503 | #endif |
| 504 | PostSyntheticMotion(dev, x, y, screenno, |
| 505 | (syncEvents.playingEvents) ? syncEvents.time. |
| 506 | milliseconds : currentTime.milliseconds); |
| 507 | |
| 508 | } |
| 509 | |
| 510 | #ifdef PANORAMIX |
| 511 | static void PostNewCursor(DeviceIntPtr pDev); |
| 512 | |
| 513 | static Bool |
| 514 | XineramaSetCursorPosition(DeviceIntPtr pDev, int x, int y, Bool generateEvent) |
| 515 | { |
| 516 | ScreenPtr pScreen; |
| 517 | int i; |
| 518 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 519 | |
| 520 | /* x,y are in Screen 0 coordinates. We need to decide what Screen |
| 521 | to send the message too and what the coordinates relative to |
| 522 | that screen are. */ |
| 523 | |
| 524 | pScreen = pSprite->screen; |
| 525 | x += screenInfo.screens[0]->x; |
| 526 | y += screenInfo.screens[0]->y; |
| 527 | |
| 528 | if (!point_on_screen(pScreen, x, y)) { |
| 529 | FOR_NSCREENS(i) { |
| 530 | if (i == pScreen->myNum) |
| 531 | continue; |
| 532 | if (point_on_screen(screenInfo.screens[i], x, y)) { |
| 533 | pScreen = screenInfo.screens[i]; |
| 534 | break; |
| 535 | } |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | pSprite->screen = pScreen; |
| 540 | pSprite->hotPhys.x = x - screenInfo.screens[0]->x; |
| 541 | pSprite->hotPhys.y = y - screenInfo.screens[0]->y; |
| 542 | x -= pScreen->x; |
| 543 | y -= pScreen->y; |
| 544 | |
| 545 | return (*pScreen->SetCursorPosition) (pDev, pScreen, x, y, generateEvent); |
| 546 | } |
| 547 | |
| 548 | static void |
| 549 | XineramaConstrainCursor(DeviceIntPtr pDev) |
| 550 | { |
| 551 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 552 | ScreenPtr pScreen; |
| 553 | BoxRec newBox; |
| 554 | |
| 555 | pScreen = pSprite->screen; |
| 556 | newBox = pSprite->physLimits; |
| 557 | |
| 558 | /* Translate the constraining box to the screen |
| 559 | the sprite is actually on */ |
| 560 | newBox.x1 += screenInfo.screens[0]->x - pScreen->x; |
| 561 | newBox.x2 += screenInfo.screens[0]->x - pScreen->x; |
| 562 | newBox.y1 += screenInfo.screens[0]->y - pScreen->y; |
| 563 | newBox.y2 += screenInfo.screens[0]->y - pScreen->y; |
| 564 | |
| 565 | (*pScreen->ConstrainCursor) (pDev, pScreen, &newBox); |
| 566 | } |
| 567 | |
| 568 | static Bool |
| 569 | XineramaSetWindowPntrs(DeviceIntPtr pDev, WindowPtr pWin) |
| 570 | { |
| 571 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 572 | |
| 573 | if (pWin == screenInfo.screens[0]->root) { |
| 574 | int i; |
| 575 | |
| 576 | FOR_NSCREENS(i) |
| 577 | pSprite->windows[i] = screenInfo.screens[i]->root; |
| 578 | } |
| 579 | else { |
| 580 | PanoramiXRes *win; |
| 581 | int rc, i; |
| 582 | |
| 583 | rc = dixLookupResourceByType((pointer *) &win, pWin->drawable.id, |
| 584 | XRT_WINDOW, serverClient, DixReadAccess); |
| 585 | if (rc != Success) |
| 586 | return FALSE; |
| 587 | |
| 588 | FOR_NSCREENS(i) { |
| 589 | rc = dixLookupWindow(pSprite->windows + i, win->info[i].id, |
| 590 | serverClient, DixReadAccess); |
| 591 | if (rc != Success) /* window is being unmapped */ |
| 592 | return FALSE; |
| 593 | } |
| 594 | } |
| 595 | return TRUE; |
| 596 | } |
| 597 | |
| 598 | static void |
| 599 | XineramaConfineCursorToWindow(DeviceIntPtr pDev, |
| 600 | WindowPtr pWin, Bool generateEvents) |
| 601 | { |
| 602 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 603 | |
| 604 | int x, y, off_x, off_y, i; |
| 605 | |
| 606 | if (!XineramaSetWindowPntrs(pDev, pWin)) |
| 607 | return; |
| 608 | |
| 609 | i = PanoramiXNumScreens - 1; |
| 610 | |
| 611 | RegionCopy(&pSprite->Reg1, &pSprite->windows[i]->borderSize); |
| 612 | off_x = screenInfo.screens[i]->x; |
| 613 | off_y = screenInfo.screens[i]->y; |
| 614 | |
| 615 | while (i--) { |
| 616 | x = off_x - screenInfo.screens[i]->x; |
| 617 | y = off_y - screenInfo.screens[i]->y; |
| 618 | |
| 619 | if (x || y) |
| 620 | RegionTranslate(&pSprite->Reg1, x, y); |
| 621 | |
| 622 | RegionUnion(&pSprite->Reg1, &pSprite->Reg1, |
| 623 | &pSprite->windows[i]->borderSize); |
| 624 | |
| 625 | off_x = screenInfo.screens[i]->x; |
| 626 | off_y = screenInfo.screens[i]->y; |
| 627 | } |
| 628 | |
| 629 | pSprite->hotLimits = *RegionExtents(&pSprite->Reg1); |
| 630 | |
| 631 | if (RegionNumRects(&pSprite->Reg1) > 1) |
| 632 | pSprite->hotShape = &pSprite->Reg1; |
| 633 | else |
| 634 | pSprite->hotShape = NullRegion; |
| 635 | |
| 636 | pSprite->confined = FALSE; |
| 637 | pSprite->confineWin = |
| 638 | (pWin == screenInfo.screens[0]->root) ? NullWindow : pWin; |
| 639 | |
| 640 | CheckPhysLimits(pDev, pSprite->current, generateEvents, FALSE, NULL); |
| 641 | } |
| 642 | |
| 643 | #endif /* PANORAMIX */ |
| 644 | |
| 645 | /** |
| 646 | * Modifies the filter for the given protocol event type to the given masks. |
| 647 | * |
| 648 | * There's only two callers: UpdateDeviceState() and XI's SetMaskForExtEvent(). |
| 649 | * The latter initialises masks for the matching XI events, it's a once-off |
| 650 | * setting. |
| 651 | * UDS however changes the mask for MotionNotify and DeviceMotionNotify each |
| 652 | * time a button is pressed to include the matching ButtonXMotion mask in the |
| 653 | * filter. |
| 654 | * |
| 655 | * @param[in] deviceid The device to modify the filter for. |
| 656 | * @param[in] mask The new filter mask. |
| 657 | * @param[in] event Protocol event type. |
| 658 | */ |
| 659 | void |
| 660 | SetMaskForEvent(int deviceid, Mask mask, int event) |
| 661 | { |
| 662 | if (deviceid < 0 || deviceid >= MAXDEVICES) |
| 663 | FatalError("SetMaskForEvent: bogus device id"); |
| 664 | event_filters[deviceid][event] = mask; |
| 665 | } |
| 666 | |
| 667 | void |
| 668 | SetCriticalEvent(int event) |
| 669 | { |
| 670 | if (event >= MAXEVENTS) |
| 671 | FatalError("SetCriticalEvent: bogus event number"); |
| 672 | criticalEvents[event >> 3] |= 1 << (event & 7); |
| 673 | } |
| 674 | |
| 675 | void |
| 676 | ConfineToShape(DeviceIntPtr pDev, RegionPtr shape, int *px, int *py) |
| 677 | { |
| 678 | BoxRec box; |
| 679 | int x = *px, y = *py; |
| 680 | int incx = 1, incy = 1; |
| 681 | |
| 682 | if (RegionContainsPoint(shape, x, y, &box)) |
| 683 | return; |
| 684 | box = *RegionExtents(shape); |
| 685 | /* this is rather crude */ |
| 686 | do { |
| 687 | x += incx; |
| 688 | if (x >= box.x2) { |
| 689 | incx = -1; |
| 690 | x = *px - 1; |
| 691 | } |
| 692 | else if (x < box.x1) { |
| 693 | incx = 1; |
| 694 | x = *px; |
| 695 | y += incy; |
| 696 | if (y >= box.y2) { |
| 697 | incy = -1; |
| 698 | y = *py - 1; |
| 699 | } |
| 700 | else if (y < box.y1) |
| 701 | return; /* should never get here! */ |
| 702 | } |
| 703 | } while (!RegionContainsPoint(shape, x, y, &box)); |
| 704 | *px = x; |
| 705 | *py = y; |
| 706 | } |
| 707 | |
| 708 | static void |
| 709 | CheckPhysLimits(DeviceIntPtr pDev, CursorPtr cursor, Bool generateEvents, |
| 710 | Bool confineToScreen, /* unused if PanoramiX on */ |
| 711 | ScreenPtr pScreen) /* unused if PanoramiX on */ |
| 712 | { |
| 713 | HotSpot new; |
| 714 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 715 | |
| 716 | if (!cursor) |
| 717 | return; |
| 718 | new = pSprite->hotPhys; |
| 719 | #ifdef PANORAMIX |
| 720 | if (!noPanoramiXExtension) |
| 721 | /* I don't care what the DDX has to say about it */ |
| 722 | pSprite->physLimits = pSprite->hotLimits; |
| 723 | else |
| 724 | #endif |
| 725 | { |
| 726 | if (pScreen) |
| 727 | new.pScreen = pScreen; |
| 728 | else |
| 729 | pScreen = new.pScreen; |
| 730 | (*pScreen->CursorLimits) (pDev, pScreen, cursor, &pSprite->hotLimits, |
| 731 | &pSprite->physLimits); |
| 732 | pSprite->confined = confineToScreen; |
| 733 | (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits); |
| 734 | } |
| 735 | |
| 736 | /* constrain the pointer to those limits */ |
| 737 | if (new.x < pSprite->physLimits.x1) |
| 738 | new.x = pSprite->physLimits.x1; |
| 739 | else if (new.x >= pSprite->physLimits.x2) |
| 740 | new.x = pSprite->physLimits.x2 - 1; |
| 741 | if (new.y < pSprite->physLimits.y1) |
| 742 | new.y = pSprite->physLimits.y1; |
| 743 | else if (new.y >= pSprite->physLimits.y2) |
| 744 | new.y = pSprite->physLimits.y2 - 1; |
| 745 | if (pSprite->hotShape) |
| 746 | ConfineToShape(pDev, pSprite->hotShape, &new.x, &new.y); |
| 747 | if (( |
| 748 | #ifdef PANORAMIX |
| 749 | noPanoramiXExtension && |
| 750 | #endif |
| 751 | (pScreen != pSprite->hotPhys.pScreen)) || |
| 752 | (new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y)) { |
| 753 | #ifdef PANORAMIX |
| 754 | if (!noPanoramiXExtension) |
| 755 | XineramaSetCursorPosition(pDev, new.x, new.y, generateEvents); |
| 756 | else |
| 757 | #endif |
| 758 | { |
| 759 | if (pScreen != pSprite->hotPhys.pScreen) |
| 760 | pSprite->hotPhys = new; |
| 761 | (*pScreen->SetCursorPosition) |
| 762 | (pDev, pScreen, new.x, new.y, generateEvents); |
| 763 | } |
| 764 | if (!generateEvents) |
| 765 | SyntheticMotion(pDev, new.x, new.y); |
| 766 | } |
| 767 | |
| 768 | #ifdef PANORAMIX |
| 769 | /* Tell DDX what the limits are */ |
| 770 | if (!noPanoramiXExtension) |
| 771 | XineramaConstrainCursor(pDev); |
| 772 | #endif |
| 773 | } |
| 774 | |
| 775 | static void |
| 776 | CheckVirtualMotion(DeviceIntPtr pDev, QdEventPtr qe, WindowPtr pWin) |
| 777 | { |
| 778 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 779 | RegionPtr reg = NULL; |
| 780 | DeviceEvent *ev = NULL; |
| 781 | |
| 782 | if (qe) { |
| 783 | ev = &qe->event->device_event; |
| 784 | switch (ev->type) { |
| 785 | case ET_Motion: |
| 786 | case ET_ButtonPress: |
| 787 | case ET_ButtonRelease: |
| 788 | case ET_KeyPress: |
| 789 | case ET_KeyRelease: |
| 790 | case ET_ProximityIn: |
| 791 | case ET_ProximityOut: |
| 792 | pSprite->hot.pScreen = qe->pScreen; |
| 793 | pSprite->hot.x = ev->root_x; |
| 794 | pSprite->hot.y = ev->root_y; |
| 795 | pWin = |
| 796 | pDev->deviceGrab.grab ? pDev->deviceGrab.grab-> |
| 797 | confineTo : NullWindow; |
| 798 | break; |
| 799 | default: |
| 800 | break; |
| 801 | } |
| 802 | } |
| 803 | if (pWin) { |
| 804 | BoxRec lims; |
| 805 | |
| 806 | #ifdef PANORAMIX |
| 807 | if (!noPanoramiXExtension) { |
| 808 | int x, y, off_x, off_y, i; |
| 809 | |
| 810 | if (!XineramaSetWindowPntrs(pDev, pWin)) |
| 811 | return; |
| 812 | |
| 813 | i = PanoramiXNumScreens - 1; |
| 814 | |
| 815 | RegionCopy(&pSprite->Reg2, &pSprite->windows[i]->borderSize); |
| 816 | off_x = screenInfo.screens[i]->x; |
| 817 | off_y = screenInfo.screens[i]->y; |
| 818 | |
| 819 | while (i--) { |
| 820 | x = off_x - screenInfo.screens[i]->x; |
| 821 | y = off_y - screenInfo.screens[i]->y; |
| 822 | |
| 823 | if (x || y) |
| 824 | RegionTranslate(&pSprite->Reg2, x, y); |
| 825 | |
| 826 | RegionUnion(&pSprite->Reg2, &pSprite->Reg2, |
| 827 | &pSprite->windows[i]->borderSize); |
| 828 | |
| 829 | off_x = screenInfo.screens[i]->x; |
| 830 | off_y = screenInfo.screens[i]->y; |
| 831 | } |
| 832 | } |
| 833 | else |
| 834 | #endif |
| 835 | { |
| 836 | if (pSprite->hot.pScreen != pWin->drawable.pScreen) { |
| 837 | pSprite->hot.pScreen = pWin->drawable.pScreen; |
| 838 | pSprite->hot.x = pSprite->hot.y = 0; |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | lims = *RegionExtents(&pWin->borderSize); |
| 843 | if (pSprite->hot.x < lims.x1) |
| 844 | pSprite->hot.x = lims.x1; |
| 845 | else if (pSprite->hot.x >= lims.x2) |
| 846 | pSprite->hot.x = lims.x2 - 1; |
| 847 | if (pSprite->hot.y < lims.y1) |
| 848 | pSprite->hot.y = lims.y1; |
| 849 | else if (pSprite->hot.y >= lims.y2) |
| 850 | pSprite->hot.y = lims.y2 - 1; |
| 851 | |
| 852 | #ifdef PANORAMIX |
| 853 | if (!noPanoramiXExtension) { |
| 854 | if (RegionNumRects(&pSprite->Reg2) > 1) |
| 855 | reg = &pSprite->Reg2; |
| 856 | |
| 857 | } |
| 858 | else |
| 859 | #endif |
| 860 | { |
| 861 | if (wBoundingShape(pWin)) |
| 862 | reg = &pWin->borderSize; |
| 863 | } |
| 864 | |
| 865 | if (reg) |
| 866 | ConfineToShape(pDev, reg, &pSprite->hot.x, &pSprite->hot.y); |
| 867 | |
| 868 | if (qe && ev) { |
| 869 | qe->pScreen = pSprite->hot.pScreen; |
| 870 | ev->root_x = pSprite->hot.x; |
| 871 | ev->root_y = pSprite->hot.y; |
| 872 | } |
| 873 | } |
| 874 | #ifdef PANORAMIX |
| 875 | if (noPanoramiXExtension) /* No typo. Only set the root win if disabled */ |
| 876 | #endif |
| 877 | RootWindow(pDev->spriteInfo->sprite) = pSprite->hot.pScreen->root; |
| 878 | } |
| 879 | |
| 880 | static void |
| 881 | ConfineCursorToWindow(DeviceIntPtr pDev, WindowPtr pWin, Bool generateEvents, |
| 882 | Bool confineToScreen) |
| 883 | { |
| 884 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 885 | |
| 886 | if (syncEvents.playingEvents) { |
| 887 | CheckVirtualMotion(pDev, (QdEventPtr) NULL, pWin); |
| 888 | SyntheticMotion(pDev, pSprite->hot.x, pSprite->hot.y); |
| 889 | } |
| 890 | else { |
| 891 | #ifdef PANORAMIX |
| 892 | if (!noPanoramiXExtension) { |
| 893 | XineramaConfineCursorToWindow(pDev, pWin, generateEvents); |
| 894 | return; |
| 895 | } |
| 896 | #endif |
| 897 | pSprite->hotLimits = *RegionExtents(&pWin->borderSize); |
| 898 | pSprite->hotShape = wBoundingShape(pWin) ? &pWin->borderSize |
| 899 | : NullRegion; |
| 900 | CheckPhysLimits(pDev, pSprite->current, generateEvents, |
| 901 | confineToScreen, pWin->drawable.pScreen); |
| 902 | } |
| 903 | } |
| 904 | |
| 905 | Bool |
| 906 | PointerConfinedToScreen(DeviceIntPtr pDev) |
| 907 | { |
| 908 | return pDev->spriteInfo->sprite->confined; |
| 909 | } |
| 910 | |
| 911 | /** |
| 912 | * Update the sprite cursor to the given cursor. |
| 913 | * |
| 914 | * ChangeToCursor() will display the new cursor and free the old cursor (if |
| 915 | * applicable). If the provided cursor is already the updated cursor, nothing |
| 916 | * happens. |
| 917 | */ |
| 918 | static void |
| 919 | ChangeToCursor(DeviceIntPtr pDev, CursorPtr cursor) |
| 920 | { |
| 921 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 922 | ScreenPtr pScreen; |
| 923 | |
| 924 | if (cursor != pSprite->current) { |
| 925 | if ((pSprite->current->bits->xhot != cursor->bits->xhot) || |
| 926 | (pSprite->current->bits->yhot != cursor->bits->yhot)) |
| 927 | CheckPhysLimits(pDev, cursor, FALSE, pSprite->confined, |
| 928 | (ScreenPtr) NULL); |
| 929 | #ifdef PANORAMIX |
| 930 | /* XXX: is this really necessary?? (whot) */ |
| 931 | if (!noPanoramiXExtension) |
| 932 | pScreen = pSprite->screen; |
| 933 | else |
| 934 | #endif |
| 935 | pScreen = pSprite->hotPhys.pScreen; |
| 936 | |
| 937 | (*pScreen->DisplayCursor) (pDev, pScreen, cursor); |
| 938 | FreeCursor(pSprite->current, (Cursor) 0); |
| 939 | pSprite->current = RefCursor(cursor); |
| 940 | } |
| 941 | } |
| 942 | |
| 943 | /** |
| 944 | * @returns true if b is a descendent of a |
| 945 | */ |
| 946 | Bool |
| 947 | IsParent(WindowPtr a, WindowPtr b) |
| 948 | { |
| 949 | for (b = b->parent; b; b = b->parent) |
| 950 | if (b == a) |
| 951 | return TRUE; |
| 952 | return FALSE; |
| 953 | } |
| 954 | |
| 955 | /** |
| 956 | * Update the cursor displayed on the screen. |
| 957 | * |
| 958 | * Called whenever a cursor may have changed shape or position. |
| 959 | */ |
| 960 | static void |
| 961 | PostNewCursor(DeviceIntPtr pDev) |
| 962 | { |
| 963 | WindowPtr win; |
| 964 | GrabPtr grab = pDev->deviceGrab.grab; |
| 965 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 966 | CursorPtr pCursor; |
| 967 | |
| 968 | if (syncEvents.playingEvents) |
| 969 | return; |
| 970 | if (grab) { |
| 971 | if (grab->cursor) { |
| 972 | ChangeToCursor(pDev, grab->cursor); |
| 973 | return; |
| 974 | } |
| 975 | if (IsParent(grab->window, pSprite->win)) |
| 976 | win = pSprite->win; |
| 977 | else |
| 978 | win = grab->window; |
| 979 | } |
| 980 | else |
| 981 | win = pSprite->win; |
| 982 | for (; win; win = win->parent) { |
| 983 | if (win->optional) { |
| 984 | pCursor = WindowGetDeviceCursor(win, pDev); |
| 985 | if (!pCursor && win->optional->cursor != NullCursor) |
| 986 | pCursor = win->optional->cursor; |
| 987 | if (pCursor) { |
| 988 | ChangeToCursor(pDev, pCursor); |
| 989 | return; |
| 990 | } |
| 991 | } |
| 992 | } |
| 993 | } |
| 994 | |
| 995 | /** |
| 996 | * @param dev device which you want to know its current root window |
| 997 | * @return root window where dev's sprite is located |
| 998 | */ |
| 999 | WindowPtr |
| 1000 | GetCurrentRootWindow(DeviceIntPtr dev) |
| 1001 | { |
| 1002 | return RootWindow(dev->spriteInfo->sprite); |
| 1003 | } |
| 1004 | |
| 1005 | /** |
| 1006 | * @return window underneath the cursor sprite. |
| 1007 | */ |
| 1008 | WindowPtr |
| 1009 | GetSpriteWindow(DeviceIntPtr pDev) |
| 1010 | { |
| 1011 | return pDev->spriteInfo->sprite->win; |
| 1012 | } |
| 1013 | |
| 1014 | /** |
| 1015 | * @return current sprite cursor. |
| 1016 | */ |
| 1017 | CursorPtr |
| 1018 | GetSpriteCursor(DeviceIntPtr pDev) |
| 1019 | { |
| 1020 | return pDev->spriteInfo->sprite->current; |
| 1021 | } |
| 1022 | |
| 1023 | /** |
| 1024 | * Set x/y current sprite position in screen coordinates. |
| 1025 | */ |
| 1026 | void |
| 1027 | GetSpritePosition(DeviceIntPtr pDev, int *px, int *py) |
| 1028 | { |
| 1029 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 1030 | |
| 1031 | *px = pSprite->hotPhys.x; |
| 1032 | *py = pSprite->hotPhys.y; |
| 1033 | } |
| 1034 | |
| 1035 | #ifdef PANORAMIX |
| 1036 | int |
| 1037 | XineramaGetCursorScreen(DeviceIntPtr pDev) |
| 1038 | { |
| 1039 | if (!noPanoramiXExtension) { |
| 1040 | return pDev->spriteInfo->sprite->screen->myNum; |
| 1041 | } |
| 1042 | else { |
| 1043 | return 0; |
| 1044 | } |
| 1045 | } |
| 1046 | #endif /* PANORAMIX */ |
| 1047 | |
| 1048 | #define TIMESLOP (5 * 60 * 1000) /* 5 minutes */ |
| 1049 | |
| 1050 | static void |
| 1051 | MonthChangedOrBadTime(CARD32 *ms) |
| 1052 | { |
| 1053 | /* If the ddx/OS is careless about not processing timestamped events from |
| 1054 | * different sources in sorted order, then it's possible for time to go |
| 1055 | * backwards when it should not. Here we ensure a decent time. |
| 1056 | */ |
| 1057 | if ((currentTime.milliseconds - *ms) > TIMESLOP) |
| 1058 | currentTime.months++; |
| 1059 | else |
| 1060 | *ms = currentTime.milliseconds; |
| 1061 | } |
| 1062 | |
| 1063 | void |
| 1064 | NoticeTime(const DeviceIntPtr dev, TimeStamp time) |
| 1065 | { |
| 1066 | lastDeviceEventTime[XIAllDevices].time = currentTime; |
| 1067 | lastDeviceEventTime[dev->id].time = currentTime; |
| 1068 | |
| 1069 | LastEventTimeToggleResetFlag(dev->id, TRUE); |
| 1070 | LastEventTimeToggleResetFlag(XIAllDevices, TRUE); |
| 1071 | } |
| 1072 | |
| 1073 | static void |
| 1074 | NoticeTimeMillis(const DeviceIntPtr dev, CARD32 *ms) |
| 1075 | { |
| 1076 | TimeStamp time; |
| 1077 | if (*ms < currentTime.milliseconds) |
| 1078 | MonthChangedOrBadTime(ms); |
| 1079 | time.months = currentTime.months; |
| 1080 | time.milliseconds = *ms; |
| 1081 | NoticeTime(dev, time); |
| 1082 | } |
| 1083 | |
| 1084 | void |
| 1085 | NoticeEventTime(InternalEvent *ev, DeviceIntPtr dev) |
| 1086 | { |
| 1087 | if (!syncEvents.playingEvents) |
| 1088 | NoticeTimeMillis(dev, &ev->any.time); |
| 1089 | } |
| 1090 | |
| 1091 | TimeStamp |
| 1092 | LastEventTime(int deviceid) |
| 1093 | { |
| 1094 | return lastDeviceEventTime[deviceid].time; |
| 1095 | } |
| 1096 | |
| 1097 | Bool |
| 1098 | LastEventTimeWasReset(int deviceid) |
| 1099 | { |
| 1100 | return lastDeviceEventTime[deviceid].reset; |
| 1101 | } |
| 1102 | |
| 1103 | void |
| 1104 | LastEventTimeToggleResetFlag(int deviceid, Bool state) |
| 1105 | { |
| 1106 | lastDeviceEventTime[deviceid].reset = state; |
| 1107 | } |
| 1108 | |
| 1109 | void |
| 1110 | LastEventTimeToggleResetAll(Bool state) |
| 1111 | { |
| 1112 | DeviceIntPtr dev; |
| 1113 | nt_list_for_each_entry(dev, inputInfo.devices, next) { |
| 1114 | LastEventTimeToggleResetFlag(dev->id, FALSE); |
| 1115 | } |
| 1116 | LastEventTimeToggleResetFlag(XIAllDevices, FALSE); |
| 1117 | LastEventTimeToggleResetFlag(XIAllMasterDevices, FALSE); |
| 1118 | } |
| 1119 | |
| 1120 | /************************************************************************** |
| 1121 | * The following procedures deal with synchronous events * |
| 1122 | **************************************************************************/ |
| 1123 | |
| 1124 | /** |
| 1125 | * EnqueueEvent is a device's processInputProc if a device is frozen. |
| 1126 | * Instead of delivering the events to the client, the event is tacked onto a |
| 1127 | * linked list for later delivery. |
| 1128 | */ |
| 1129 | void |
| 1130 | EnqueueEvent(InternalEvent *ev, DeviceIntPtr device) |
| 1131 | { |
| 1132 | QdEventPtr tail = NULL; |
| 1133 | QdEventPtr qe; |
| 1134 | SpritePtr pSprite = device->spriteInfo->sprite; |
| 1135 | int eventlen; |
| 1136 | DeviceEvent *event = &ev->device_event; |
| 1137 | |
| 1138 | if (!xorg_list_is_empty(&syncEvents.pending)) |
| 1139 | tail = xorg_list_last_entry(&syncEvents.pending, QdEventRec, next); |
| 1140 | |
| 1141 | NoticeTimeMillis(device, &ev->any.time); |
| 1142 | |
| 1143 | /* Fix for key repeating bug. */ |
| 1144 | if (device->key != NULL && device->key->xkbInfo != NULL && |
| 1145 | event->type == ET_KeyRelease) |
| 1146 | AccessXCancelRepeatKey(device->key->xkbInfo, event->detail.key); |
| 1147 | |
| 1148 | if (DeviceEventCallback) { |
| 1149 | DeviceEventInfoRec eventinfo; |
| 1150 | |
| 1151 | /* The RECORD spec says that the root window field of motion events |
| 1152 | * must be valid. At this point, it hasn't been filled in yet, so |
| 1153 | * we do it here. The long expression below is necessary to get |
| 1154 | * the current root window; the apparently reasonable alternative |
| 1155 | * GetCurrentRootWindow()->drawable.id doesn't give you the right |
| 1156 | * answer on the first motion event after a screen change because |
| 1157 | * the data that GetCurrentRootWindow relies on hasn't been |
| 1158 | * updated yet. |
| 1159 | */ |
| 1160 | if (ev->any.type == ET_Motion) |
| 1161 | ev->device_event.root = pSprite->hotPhys.pScreen->root->drawable.id; |
| 1162 | |
| 1163 | eventinfo.event = ev; |
| 1164 | eventinfo.device = device; |
| 1165 | CallCallbacks(&DeviceEventCallback, (pointer) &eventinfo); |
| 1166 | } |
| 1167 | |
| 1168 | if (event->type == ET_Motion) { |
| 1169 | #ifdef PANORAMIX |
| 1170 | if (!noPanoramiXExtension) { |
| 1171 | event->root_x += pSprite->screen->x - screenInfo.screens[0]->x; |
| 1172 | event->root_y += pSprite->screen->y - screenInfo.screens[0]->y; |
| 1173 | } |
| 1174 | #endif |
| 1175 | pSprite->hotPhys.x = event->root_x; |
| 1176 | pSprite->hotPhys.y = event->root_y; |
| 1177 | /* do motion compression, but not if from different devices */ |
| 1178 | if (tail && |
| 1179 | (tail->event->any.type == ET_Motion) && |
| 1180 | (tail->device == device) && |
| 1181 | (tail->pScreen == pSprite->hotPhys.pScreen)) { |
| 1182 | DeviceEvent *tailev = &tail->event->device_event; |
| 1183 | |
| 1184 | tailev->root_x = pSprite->hotPhys.x; |
| 1185 | tailev->root_y = pSprite->hotPhys.y; |
| 1186 | tailev->time = event->time; |
| 1187 | tail->months = currentTime.months; |
| 1188 | return; |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | eventlen = event->length; |
| 1193 | |
| 1194 | qe = malloc(sizeof(QdEventRec) + eventlen); |
| 1195 | if (!qe) |
| 1196 | return; |
| 1197 | xorg_list_init(&qe->next); |
| 1198 | qe->device = device; |
| 1199 | qe->pScreen = pSprite->hotPhys.pScreen; |
| 1200 | qe->months = currentTime.months; |
| 1201 | qe->event = (InternalEvent *) (qe + 1); |
| 1202 | memcpy(qe->event, event, eventlen); |
| 1203 | xorg_list_append(&qe->next, &syncEvents.pending); |
| 1204 | } |
| 1205 | |
| 1206 | /** |
| 1207 | * Run through the list of events queued up in syncEvents. |
| 1208 | * For each event do: |
| 1209 | * If the device for this event is not frozen anymore, take it and process it |
| 1210 | * as usually. |
| 1211 | * After that, check if there's any devices in the list that are not frozen. |
| 1212 | * If there is none, we're done. If there is at least one device that is not |
| 1213 | * frozen, then re-run from the beginning of the event queue. |
| 1214 | */ |
| 1215 | void |
| 1216 | PlayReleasedEvents(void) |
| 1217 | { |
| 1218 | QdEventPtr tmp; |
| 1219 | QdEventPtr qe; |
| 1220 | DeviceIntPtr dev; |
| 1221 | DeviceIntPtr pDev; |
| 1222 | |
| 1223 | restart: |
| 1224 | xorg_list_for_each_entry_safe(qe, tmp, &syncEvents.pending, next) { |
| 1225 | if (!qe->device->deviceGrab.sync.frozen) { |
| 1226 | xorg_list_del(&qe->next); |
| 1227 | pDev = qe->device; |
| 1228 | if (qe->event->any.type == ET_Motion) |
| 1229 | CheckVirtualMotion(pDev, qe, NullWindow); |
| 1230 | syncEvents.time.months = qe->months; |
| 1231 | syncEvents.time.milliseconds = qe->event->any.time; |
| 1232 | #ifdef PANORAMIX |
| 1233 | /* Translate back to the sprite screen since processInputProc |
| 1234 | will translate from sprite screen to screen 0 upon reentry |
| 1235 | to the DIX layer */ |
| 1236 | if (!noPanoramiXExtension) { |
| 1237 | DeviceEvent *ev = &qe->event->device_event; |
| 1238 | |
| 1239 | switch (ev->type) { |
| 1240 | case ET_Motion: |
| 1241 | case ET_ButtonPress: |
| 1242 | case ET_ButtonRelease: |
| 1243 | case ET_KeyPress: |
| 1244 | case ET_KeyRelease: |
| 1245 | case ET_ProximityIn: |
| 1246 | case ET_ProximityOut: |
| 1247 | case ET_TouchBegin: |
| 1248 | case ET_TouchUpdate: |
| 1249 | case ET_TouchEnd: |
| 1250 | ev->root_x += screenInfo.screens[0]->x - |
| 1251 | pDev->spriteInfo->sprite->screen->x; |
| 1252 | ev->root_y += screenInfo.screens[0]->y - |
| 1253 | pDev->spriteInfo->sprite->screen->y; |
| 1254 | break; |
| 1255 | default: |
| 1256 | break; |
| 1257 | } |
| 1258 | |
| 1259 | } |
| 1260 | #endif |
| 1261 | (*qe->device->public.processInputProc) (qe->event, qe->device); |
| 1262 | free(qe); |
| 1263 | for (dev = inputInfo.devices; dev && dev->deviceGrab.sync.frozen; |
| 1264 | dev = dev->next); |
| 1265 | if (!dev) |
| 1266 | break; |
| 1267 | |
| 1268 | /* Playing the event may have unfrozen another device. */ |
| 1269 | /* So to play it safe, restart at the head of the queue */ |
| 1270 | goto restart; |
| 1271 | } |
| 1272 | } |
| 1273 | } |
| 1274 | |
| 1275 | /** |
| 1276 | * Freeze or thaw the given devices. The device's processing proc is |
| 1277 | * switched to either the real processing proc (in case of thawing) or an |
| 1278 | * enqueuing processing proc (usually EnqueueEvent()). |
| 1279 | * |
| 1280 | * @param dev The device to freeze/thaw |
| 1281 | * @param frozen True to freeze or false to thaw. |
| 1282 | */ |
| 1283 | static void |
| 1284 | FreezeThaw(DeviceIntPtr dev, Bool frozen) |
| 1285 | { |
| 1286 | dev->deviceGrab.sync.frozen = frozen; |
| 1287 | if (frozen) |
| 1288 | dev->public.processInputProc = dev->public.enqueueInputProc; |
| 1289 | else |
| 1290 | dev->public.processInputProc = dev->public.realInputProc; |
| 1291 | } |
| 1292 | |
| 1293 | /** |
| 1294 | * Unfreeze devices and replay all events to the respective clients. |
| 1295 | * |
| 1296 | * ComputeFreezes takes the first event in the device's frozen event queue. It |
| 1297 | * runs up the sprite tree (spriteTrace) and searches for the window to replay |
| 1298 | * the events from. If it is found, it checks for passive grabs one down from |
| 1299 | * the window or delivers the events. |
| 1300 | */ |
| 1301 | static void |
| 1302 | ComputeFreezes(void) |
| 1303 | { |
| 1304 | DeviceIntPtr replayDev = syncEvents.replayDev; |
| 1305 | WindowPtr w; |
| 1306 | GrabPtr grab; |
| 1307 | DeviceIntPtr dev; |
| 1308 | |
| 1309 | for (dev = inputInfo.devices; dev; dev = dev->next) |
| 1310 | FreezeThaw(dev, dev->deviceGrab.sync.other || |
| 1311 | (dev->deviceGrab.sync.state >= FROZEN)); |
| 1312 | if (syncEvents.playingEvents || |
| 1313 | (!replayDev && xorg_list_is_empty(&syncEvents.pending))) |
| 1314 | return; |
| 1315 | syncEvents.playingEvents = TRUE; |
| 1316 | if (replayDev) { |
| 1317 | DeviceEvent *event = replayDev->deviceGrab.sync.event; |
| 1318 | |
| 1319 | syncEvents.replayDev = (DeviceIntPtr) NULL; |
| 1320 | |
| 1321 | w = XYToWindow(replayDev->spriteInfo->sprite, |
| 1322 | event->root_x, event->root_y); |
| 1323 | if (!CheckDeviceGrabs(replayDev, event, syncEvents.replayWin)) { |
| 1324 | if (IsTouchEvent((InternalEvent *) event)) { |
| 1325 | TouchPointInfoPtr ti = |
| 1326 | TouchFindByClientID(replayDev, event->touchid); |
| 1327 | BUG_WARN(!ti); |
| 1328 | |
| 1329 | TouchListenerAcceptReject(replayDev, ti, 0, XIRejectTouch); |
| 1330 | } |
| 1331 | else if (replayDev->focus && |
| 1332 | !IsPointerEvent((InternalEvent *) event)) |
| 1333 | DeliverFocusedEvent(replayDev, (InternalEvent *) event, w); |
| 1334 | else |
| 1335 | DeliverDeviceEvents(w, (InternalEvent *) event, NullGrab, |
| 1336 | NullWindow, replayDev); |
| 1337 | } |
| 1338 | } |
| 1339 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1340 | if (!dev->deviceGrab.sync.frozen) { |
| 1341 | PlayReleasedEvents(); |
| 1342 | break; |
| 1343 | } |
| 1344 | } |
| 1345 | syncEvents.playingEvents = FALSE; |
| 1346 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1347 | if (DevHasCursor(dev)) { |
| 1348 | /* the following may have been skipped during replay, |
| 1349 | so do it now */ |
| 1350 | if ((grab = dev->deviceGrab.grab) && grab->confineTo) { |
| 1351 | if (grab->confineTo->drawable.pScreen != |
| 1352 | dev->spriteInfo->sprite->hotPhys.pScreen) |
| 1353 | dev->spriteInfo->sprite->hotPhys.x = |
| 1354 | dev->spriteInfo->sprite->hotPhys.y = 0; |
| 1355 | ConfineCursorToWindow(dev, grab->confineTo, TRUE, TRUE); |
| 1356 | } |
| 1357 | else |
| 1358 | ConfineCursorToWindow(dev, |
| 1359 | dev->spriteInfo->sprite->hotPhys.pScreen-> |
| 1360 | root, TRUE, FALSE); |
| 1361 | PostNewCursor(dev); |
| 1362 | } |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | #ifdef RANDR |
| 1367 | void |
| 1368 | ScreenRestructured(ScreenPtr pScreen) |
| 1369 | { |
| 1370 | GrabPtr grab; |
| 1371 | DeviceIntPtr pDev; |
| 1372 | |
| 1373 | for (pDev = inputInfo.devices; pDev; pDev = pDev->next) { |
| 1374 | if (!IsFloating(pDev) && !DevHasCursor(pDev)) |
| 1375 | continue; |
| 1376 | |
| 1377 | /* GrabDevice doesn't have a confineTo field, so we don't need to |
| 1378 | * worry about it. */ |
| 1379 | if ((grab = pDev->deviceGrab.grab) && grab->confineTo) { |
| 1380 | if (grab->confineTo->drawable.pScreen |
| 1381 | != pDev->spriteInfo->sprite->hotPhys.pScreen) |
| 1382 | pDev->spriteInfo->sprite->hotPhys.x = |
| 1383 | pDev->spriteInfo->sprite->hotPhys.y = 0; |
| 1384 | ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE); |
| 1385 | } |
| 1386 | else |
| 1387 | ConfineCursorToWindow(pDev, |
| 1388 | pDev->spriteInfo->sprite->hotPhys.pScreen-> |
| 1389 | root, TRUE, FALSE); |
| 1390 | } |
| 1391 | } |
| 1392 | #endif |
| 1393 | |
| 1394 | static void |
| 1395 | CheckGrabForSyncs(DeviceIntPtr thisDev, Bool thisMode, Bool otherMode) |
| 1396 | { |
| 1397 | GrabPtr grab = thisDev->deviceGrab.grab; |
| 1398 | DeviceIntPtr dev; |
| 1399 | |
| 1400 | if (thisMode == GrabModeSync) |
| 1401 | thisDev->deviceGrab.sync.state = FROZEN_NO_EVENT; |
| 1402 | else { /* free both if same client owns both */ |
| 1403 | thisDev->deviceGrab.sync.state = THAWED; |
| 1404 | if (thisDev->deviceGrab.sync.other && |
| 1405 | (CLIENT_BITS(thisDev->deviceGrab.sync.other->resource) == |
| 1406 | CLIENT_BITS(grab->resource))) |
| 1407 | thisDev->deviceGrab.sync.other = NullGrab; |
| 1408 | } |
| 1409 | |
| 1410 | if (IsMaster(thisDev)) { |
| 1411 | dev = GetPairedDevice(thisDev); |
| 1412 | if (otherMode == GrabModeSync) |
| 1413 | dev->deviceGrab.sync.other = grab; |
| 1414 | else { /* free both if same client owns both */ |
| 1415 | if (dev->deviceGrab.sync.other && |
| 1416 | (CLIENT_BITS(dev->deviceGrab.sync.other->resource) == |
| 1417 | CLIENT_BITS(grab->resource))) |
| 1418 | dev->deviceGrab.sync.other = NullGrab; |
| 1419 | } |
| 1420 | } |
| 1421 | ComputeFreezes(); |
| 1422 | } |
| 1423 | |
| 1424 | /** |
| 1425 | * Save the device's master device id. This needs to be done |
| 1426 | * if a client directly grabs a slave device that is attached to a master. For |
| 1427 | * the duration of the grab, the device is detached, ungrabbing re-attaches it |
| 1428 | * though. |
| 1429 | * |
| 1430 | * We store the ID of the master device only in case the master disappears |
| 1431 | * while the device has a grab. |
| 1432 | */ |
| 1433 | static void |
| 1434 | DetachFromMaster(DeviceIntPtr dev) |
| 1435 | { |
| 1436 | if (IsFloating(dev)) |
| 1437 | return; |
| 1438 | |
| 1439 | dev->saved_master_id = GetMaster(dev, MASTER_ATTACHED)->id; |
| 1440 | |
| 1441 | AttachDevice(NULL, dev, NULL); |
| 1442 | } |
| 1443 | |
| 1444 | static void |
| 1445 | ReattachToOldMaster(DeviceIntPtr dev) |
| 1446 | { |
| 1447 | DeviceIntPtr master = NULL; |
| 1448 | |
| 1449 | if (IsMaster(dev)) |
| 1450 | return; |
| 1451 | |
| 1452 | dixLookupDevice(&master, dev->saved_master_id, serverClient, DixUseAccess); |
| 1453 | |
| 1454 | if (master) { |
| 1455 | AttachDevice(serverClient, dev, master); |
| 1456 | dev->saved_master_id = 0; |
| 1457 | } |
| 1458 | } |
| 1459 | |
| 1460 | /** |
| 1461 | * Update touch records when an explicit grab is activated. Any touches owned by |
| 1462 | * the grabbing client are updated so the listener state reflects the new grab. |
| 1463 | */ |
| 1464 | static void |
| 1465 | UpdateTouchesForGrab(DeviceIntPtr mouse) |
| 1466 | { |
| 1467 | int i; |
| 1468 | |
| 1469 | if (!mouse->touch || mouse->deviceGrab.fromPassiveGrab) |
| 1470 | return; |
| 1471 | |
| 1472 | for (i = 0; i < mouse->touch->num_touches; i++) { |
| 1473 | TouchPointInfoPtr ti = mouse->touch->touches + i; |
| 1474 | TouchListener *listener = &ti->listeners[0]; |
| 1475 | GrabPtr grab = mouse->deviceGrab.grab; |
| 1476 | |
| 1477 | if (ti->active && |
| 1478 | CLIENT_BITS(listener->listener) == grab->resource) { |
| 1479 | listener->listener = grab->resource; |
| 1480 | listener->level = grab->grabtype; |
| 1481 | listener->state = LISTENER_IS_OWNER; |
| 1482 | listener->window = grab->window; |
| 1483 | |
| 1484 | if (grab->grabtype == CORE || grab->grabtype == XI || |
| 1485 | !xi2mask_isset(grab->xi2mask, mouse, XI_TouchBegin)) |
| 1486 | listener->type = LISTENER_POINTER_GRAB; |
| 1487 | else |
| 1488 | listener->type = LISTENER_GRAB; |
| 1489 | if (listener->grab) |
| 1490 | FreeGrab(listener->grab); |
| 1491 | listener->grab = AllocGrab(grab); |
| 1492 | } |
| 1493 | } |
| 1494 | } |
| 1495 | |
| 1496 | /** |
| 1497 | * Activate a pointer grab on the given device. A pointer grab will cause all |
| 1498 | * core pointer events of this device to be delivered to the grabbing client only. |
| 1499 | * No other device will send core events to the grab client while the grab is |
| 1500 | * on, but core events will be sent to other clients. |
| 1501 | * Can cause the cursor to change if a grab cursor is set. |
| 1502 | * |
| 1503 | * Note that parameter autoGrab may be (True & ImplicitGrabMask) if the grab |
| 1504 | * is an implicit grab caused by a ButtonPress event. |
| 1505 | * |
| 1506 | * @param mouse The device to grab. |
| 1507 | * @param grab The grab structure, needs to be setup. |
| 1508 | * @param autoGrab True if the grab was caused by a button down event and not |
| 1509 | * explicitely by a client. |
| 1510 | */ |
| 1511 | void |
| 1512 | ActivatePointerGrab(DeviceIntPtr mouse, GrabPtr grab, |
| 1513 | TimeStamp time, Bool autoGrab) |
| 1514 | { |
| 1515 | GrabInfoPtr grabinfo = &mouse->deviceGrab; |
| 1516 | GrabPtr oldgrab = grabinfo->grab; |
| 1517 | WindowPtr oldWin = (grabinfo->grab) ? |
| 1518 | grabinfo->grab->window : mouse->spriteInfo->sprite->win; |
| 1519 | Bool isPassive = autoGrab & ~ImplicitGrabMask; |
| 1520 | |
| 1521 | /* slave devices need to float for the duration of the grab. */ |
| 1522 | if (grab->grabtype == XI2 && |
| 1523 | !(autoGrab & ImplicitGrabMask) && !IsMaster(mouse)) |
| 1524 | DetachFromMaster(mouse); |
| 1525 | |
| 1526 | if (grab->confineTo) { |
| 1527 | if (grab->confineTo->drawable.pScreen |
| 1528 | != mouse->spriteInfo->sprite->hotPhys.pScreen) |
| 1529 | mouse->spriteInfo->sprite->hotPhys.x = |
| 1530 | mouse->spriteInfo->sprite->hotPhys.y = 0; |
| 1531 | ConfineCursorToWindow(mouse, grab->confineTo, FALSE, TRUE); |
| 1532 | } |
| 1533 | DoEnterLeaveEvents(mouse, mouse->id, oldWin, grab->window, NotifyGrab); |
| 1534 | mouse->valuator->motionHintWindow = NullWindow; |
| 1535 | if (syncEvents.playingEvents) |
| 1536 | grabinfo->grabTime = syncEvents.time; |
| 1537 | else |
| 1538 | grabinfo->grabTime = time; |
| 1539 | grabinfo->grab = AllocGrab(grab); |
| 1540 | grabinfo->fromPassiveGrab = isPassive; |
| 1541 | grabinfo->implicitGrab = autoGrab & ImplicitGrabMask; |
| 1542 | PostNewCursor(mouse); |
| 1543 | UpdateTouchesForGrab(mouse); |
| 1544 | CheckGrabForSyncs(mouse, (Bool) grab->pointerMode, |
| 1545 | (Bool) grab->keyboardMode); |
| 1546 | if (oldgrab) |
| 1547 | FreeGrab(oldgrab); |
| 1548 | } |
| 1549 | |
| 1550 | /** |
| 1551 | * Delete grab on given device, update the sprite. |
| 1552 | * |
| 1553 | * Extension devices are set up for ActivateKeyboardGrab(). |
| 1554 | */ |
| 1555 | void |
| 1556 | DeactivatePointerGrab(DeviceIntPtr mouse) |
| 1557 | { |
| 1558 | GrabPtr grab = mouse->deviceGrab.grab; |
| 1559 | DeviceIntPtr dev; |
| 1560 | Bool wasPassive = mouse->deviceGrab.fromPassiveGrab; |
| 1561 | Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab && |
| 1562 | mouse->deviceGrab.implicitGrab); |
| 1563 | XID grab_resource = grab->resource; |
| 1564 | int i; |
| 1565 | |
| 1566 | /* If an explicit grab was deactivated, we must remove it from the head of |
| 1567 | * all the touches' listener lists. */ |
| 1568 | for (i = 0; !wasPassive && mouse->touch && i < mouse->touch->num_touches; i++) { |
| 1569 | TouchPointInfoPtr ti = mouse->touch->touches + i; |
| 1570 | if (ti->active && TouchResourceIsOwner(ti, grab_resource)) { |
| 1571 | int mode = XIRejectTouch; |
| 1572 | /* Rejecting will generate a TouchEnd, but we must not |
| 1573 | emulate a ButtonRelease here. So pretend the listener |
| 1574 | already has the end event */ |
| 1575 | if (grab->grabtype == CORE || grab->grabtype == XI || |
| 1576 | !xi2mask_isset(mouse->deviceGrab.grab->xi2mask, mouse, XI_TouchBegin)) { |
| 1577 | mode = XIAcceptTouch; |
| 1578 | /* NOTE: we set the state here, but |
| 1579 | * ProcessTouchOwnershipEvent() will still call |
| 1580 | * TouchEmitTouchEnd for this listener. The other half of |
| 1581 | * this hack is in DeliverTouchEndEvent */ |
| 1582 | ti->listeners[0].state = LISTENER_HAS_END; |
| 1583 | } |
| 1584 | TouchListenerAcceptReject(mouse, ti, 0, mode); |
| 1585 | } |
| 1586 | } |
| 1587 | |
| 1588 | TouchRemovePointerGrab(mouse); |
| 1589 | |
| 1590 | mouse->valuator->motionHintWindow = NullWindow; |
| 1591 | mouse->deviceGrab.grab = NullGrab; |
| 1592 | mouse->deviceGrab.sync.state = NOT_GRABBED; |
| 1593 | mouse->deviceGrab.fromPassiveGrab = FALSE; |
| 1594 | |
| 1595 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1596 | if (dev->deviceGrab.sync.other == grab) |
| 1597 | dev->deviceGrab.sync.other = NullGrab; |
| 1598 | } |
| 1599 | DoEnterLeaveEvents(mouse, mouse->id, grab->window, |
| 1600 | mouse->spriteInfo->sprite->win, NotifyUngrab); |
| 1601 | if (grab->confineTo) |
| 1602 | ConfineCursorToWindow(mouse, GetCurrentRootWindow(mouse), FALSE, FALSE); |
| 1603 | PostNewCursor(mouse); |
| 1604 | |
| 1605 | if (!wasImplicit && grab->grabtype == XI2) |
| 1606 | ReattachToOldMaster(mouse); |
| 1607 | |
| 1608 | ComputeFreezes(); |
| 1609 | |
| 1610 | FreeGrab(grab); |
| 1611 | } |
| 1612 | |
| 1613 | /** |
| 1614 | * Activate a keyboard grab on the given device. |
| 1615 | * |
| 1616 | * Extension devices have ActivateKeyboardGrab() set as their grabbing proc. |
| 1617 | */ |
| 1618 | void |
| 1619 | ActivateKeyboardGrab(DeviceIntPtr keybd, GrabPtr grab, TimeStamp time, |
| 1620 | Bool passive) |
| 1621 | { |
| 1622 | GrabInfoPtr grabinfo = &keybd->deviceGrab; |
| 1623 | GrabPtr oldgrab = grabinfo->grab; |
| 1624 | WindowPtr oldWin; |
| 1625 | |
| 1626 | /* slave devices need to float for the duration of the grab. */ |
| 1627 | if (grab->grabtype == XI2 && keybd->enabled && |
| 1628 | !(passive & ImplicitGrabMask) && !IsMaster(keybd)) |
| 1629 | DetachFromMaster(keybd); |
| 1630 | |
| 1631 | if (!keybd->enabled) |
| 1632 | oldWin = NULL; |
| 1633 | else if (grabinfo->grab) |
| 1634 | oldWin = grabinfo->grab->window; |
| 1635 | else if (keybd->focus) |
| 1636 | oldWin = keybd->focus->win; |
| 1637 | else |
| 1638 | oldWin = keybd->spriteInfo->sprite->win; |
| 1639 | if (oldWin == FollowKeyboardWin) |
| 1640 | oldWin = keybd->focus->win; |
| 1641 | if (keybd->valuator) |
| 1642 | keybd->valuator->motionHintWindow = NullWindow; |
| 1643 | if (oldWin) |
| 1644 | DoFocusEvents(keybd, oldWin, grab->window, NotifyGrab); |
| 1645 | if (syncEvents.playingEvents) |
| 1646 | grabinfo->grabTime = syncEvents.time; |
| 1647 | else |
| 1648 | grabinfo->grabTime = time; |
| 1649 | grabinfo->grab = AllocGrab(grab); |
| 1650 | grabinfo->fromPassiveGrab = passive; |
| 1651 | grabinfo->implicitGrab = passive & ImplicitGrabMask; |
| 1652 | CheckGrabForSyncs(keybd, (Bool) grab->keyboardMode, |
| 1653 | (Bool) grab->pointerMode); |
| 1654 | if (oldgrab) |
| 1655 | FreeGrab(oldgrab); |
| 1656 | } |
| 1657 | |
| 1658 | /** |
| 1659 | * Delete keyboard grab for the given device. |
| 1660 | */ |
| 1661 | void |
| 1662 | DeactivateKeyboardGrab(DeviceIntPtr keybd) |
| 1663 | { |
| 1664 | GrabPtr grab = keybd->deviceGrab.grab; |
| 1665 | DeviceIntPtr dev; |
| 1666 | WindowPtr focusWin; |
| 1667 | Bool wasImplicit = (keybd->deviceGrab.fromPassiveGrab && |
| 1668 | keybd->deviceGrab.implicitGrab); |
| 1669 | |
| 1670 | if (keybd->valuator) |
| 1671 | keybd->valuator->motionHintWindow = NullWindow; |
| 1672 | keybd->deviceGrab.grab = NullGrab; |
| 1673 | keybd->deviceGrab.sync.state = NOT_GRABBED; |
| 1674 | keybd->deviceGrab.fromPassiveGrab = FALSE; |
| 1675 | |
| 1676 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1677 | if (dev->deviceGrab.sync.other == grab) |
| 1678 | dev->deviceGrab.sync.other = NullGrab; |
| 1679 | } |
| 1680 | |
| 1681 | if (keybd->focus) |
| 1682 | focusWin = keybd->focus->win; |
| 1683 | else if (keybd->spriteInfo->sprite) |
| 1684 | focusWin = keybd->spriteInfo->sprite->win; |
| 1685 | else |
| 1686 | focusWin = NullWindow; |
| 1687 | |
| 1688 | if (focusWin == FollowKeyboardWin) |
| 1689 | focusWin = inputInfo.keyboard->focus->win; |
| 1690 | |
| 1691 | DoFocusEvents(keybd, grab->window, focusWin, NotifyUngrab); |
| 1692 | |
| 1693 | if (!wasImplicit && grab->grabtype == XI2) |
| 1694 | ReattachToOldMaster(keybd); |
| 1695 | |
| 1696 | ComputeFreezes(); |
| 1697 | |
| 1698 | FreeGrab(grab); |
| 1699 | } |
| 1700 | |
| 1701 | void |
| 1702 | AllowSome(ClientPtr client, TimeStamp time, DeviceIntPtr thisDev, int newState) |
| 1703 | { |
| 1704 | Bool thisGrabbed, otherGrabbed, othersFrozen, thisSynced; |
| 1705 | TimeStamp grabTime; |
| 1706 | DeviceIntPtr dev; |
| 1707 | GrabInfoPtr devgrabinfo, grabinfo = &thisDev->deviceGrab; |
| 1708 | |
| 1709 | thisGrabbed = grabinfo->grab && SameClient(grabinfo->grab, client); |
| 1710 | thisSynced = FALSE; |
| 1711 | otherGrabbed = FALSE; |
| 1712 | othersFrozen = FALSE; |
| 1713 | grabTime = grabinfo->grabTime; |
| 1714 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1715 | devgrabinfo = &dev->deviceGrab; |
| 1716 | |
| 1717 | if (dev == thisDev) |
| 1718 | continue; |
| 1719 | if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client)) { |
| 1720 | if (!(thisGrabbed || otherGrabbed) || |
| 1721 | (CompareTimeStamps(devgrabinfo->grabTime, grabTime) == LATER)) |
| 1722 | grabTime = devgrabinfo->grabTime; |
| 1723 | otherGrabbed = TRUE; |
| 1724 | if (grabinfo->sync.other == devgrabinfo->grab) |
| 1725 | thisSynced = TRUE; |
| 1726 | if (devgrabinfo->sync.state >= FROZEN) |
| 1727 | othersFrozen = TRUE; |
| 1728 | } |
| 1729 | } |
| 1730 | if (!((thisGrabbed && grabinfo->sync.state >= FROZEN) || thisSynced)) |
| 1731 | return; |
| 1732 | if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 1733 | (CompareTimeStamps(time, grabTime) == EARLIER)) |
| 1734 | return; |
| 1735 | switch (newState) { |
| 1736 | case THAWED: /* Async */ |
| 1737 | if (thisGrabbed) |
| 1738 | grabinfo->sync.state = THAWED; |
| 1739 | if (thisSynced) |
| 1740 | grabinfo->sync.other = NullGrab; |
| 1741 | ComputeFreezes(); |
| 1742 | break; |
| 1743 | case FREEZE_NEXT_EVENT: /* Sync */ |
| 1744 | if (thisGrabbed) { |
| 1745 | grabinfo->sync.state = FREEZE_NEXT_EVENT; |
| 1746 | if (thisSynced) |
| 1747 | grabinfo->sync.other = NullGrab; |
| 1748 | ComputeFreezes(); |
| 1749 | } |
| 1750 | break; |
| 1751 | case THAWED_BOTH: /* AsyncBoth */ |
| 1752 | if (othersFrozen) { |
| 1753 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1754 | devgrabinfo = &dev->deviceGrab; |
| 1755 | if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client)) |
| 1756 | devgrabinfo->sync.state = THAWED; |
| 1757 | if (devgrabinfo->sync.other && |
| 1758 | SameClient(devgrabinfo->sync.other, client)) |
| 1759 | devgrabinfo->sync.other = NullGrab; |
| 1760 | } |
| 1761 | ComputeFreezes(); |
| 1762 | } |
| 1763 | break; |
| 1764 | case FREEZE_BOTH_NEXT_EVENT: /* SyncBoth */ |
| 1765 | if (othersFrozen) { |
| 1766 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1767 | devgrabinfo = &dev->deviceGrab; |
| 1768 | if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client)) |
| 1769 | devgrabinfo->sync.state = FREEZE_BOTH_NEXT_EVENT; |
| 1770 | if (devgrabinfo->sync.other |
| 1771 | && SameClient(devgrabinfo->sync.other, client)) |
| 1772 | devgrabinfo->sync.other = NullGrab; |
| 1773 | } |
| 1774 | ComputeFreezes(); |
| 1775 | } |
| 1776 | break; |
| 1777 | case NOT_GRABBED: /* Replay */ |
| 1778 | if (thisGrabbed && grabinfo->sync.state == FROZEN_WITH_EVENT) { |
| 1779 | if (thisSynced) |
| 1780 | grabinfo->sync.other = NullGrab; |
| 1781 | syncEvents.replayDev = thisDev; |
| 1782 | syncEvents.replayWin = grabinfo->grab->window; |
| 1783 | (*grabinfo->DeactivateGrab) (thisDev); |
| 1784 | syncEvents.replayDev = (DeviceIntPtr) NULL; |
| 1785 | } |
| 1786 | break; |
| 1787 | case THAW_OTHERS: /* AsyncOthers */ |
| 1788 | if (othersFrozen) { |
| 1789 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1790 | if (dev == thisDev) |
| 1791 | continue; |
| 1792 | devgrabinfo = &dev->deviceGrab; |
| 1793 | if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client)) |
| 1794 | devgrabinfo->sync.state = THAWED; |
| 1795 | if (devgrabinfo->sync.other |
| 1796 | && SameClient(devgrabinfo->sync.other, client)) |
| 1797 | devgrabinfo->sync.other = NullGrab; |
| 1798 | } |
| 1799 | ComputeFreezes(); |
| 1800 | } |
| 1801 | break; |
| 1802 | } |
| 1803 | |
| 1804 | /* We've unfrozen the grab. If the grab was a touch grab, we're now the |
| 1805 | * owner and expected to accept/reject it. Reject == ReplayPointer which |
| 1806 | * we've handled in ComputeFreezes() (during DeactivateGrab) above, |
| 1807 | * anything else is accept. |
| 1808 | */ |
| 1809 | if (newState != NOT_GRABBED /* Replay */ && |
| 1810 | IsTouchEvent((InternalEvent*)grabinfo->sync.event)) { |
| 1811 | TouchAcceptAndEnd(thisDev, grabinfo->sync.event->touchid); |
| 1812 | } |
| 1813 | } |
| 1814 | |
| 1815 | /** |
| 1816 | * Server-side protocol handling for AllowEvents request. |
| 1817 | * |
| 1818 | * Release some events from a frozen device. |
| 1819 | */ |
| 1820 | int |
| 1821 | ProcAllowEvents(ClientPtr client) |
| 1822 | { |
| 1823 | TimeStamp time; |
| 1824 | DeviceIntPtr mouse = NULL; |
| 1825 | DeviceIntPtr keybd = NULL; |
| 1826 | |
| 1827 | REQUEST(xAllowEventsReq); |
| 1828 | |
| 1829 | REQUEST_SIZE_MATCH(xAllowEventsReq); |
| 1830 | time = ClientTimeToServerTime(stuff->time); |
| 1831 | |
| 1832 | mouse = PickPointer(client); |
| 1833 | keybd = PickKeyboard(client); |
| 1834 | |
| 1835 | switch (stuff->mode) { |
| 1836 | case ReplayPointer: |
| 1837 | AllowSome(client, time, mouse, NOT_GRABBED); |
| 1838 | break; |
| 1839 | case SyncPointer: |
| 1840 | AllowSome(client, time, mouse, FREEZE_NEXT_EVENT); |
| 1841 | break; |
| 1842 | case AsyncPointer: |
| 1843 | AllowSome(client, time, mouse, THAWED); |
| 1844 | break; |
| 1845 | case ReplayKeyboard: |
| 1846 | AllowSome(client, time, keybd, NOT_GRABBED); |
| 1847 | break; |
| 1848 | case SyncKeyboard: |
| 1849 | AllowSome(client, time, keybd, FREEZE_NEXT_EVENT); |
| 1850 | break; |
| 1851 | case AsyncKeyboard: |
| 1852 | AllowSome(client, time, keybd, THAWED); |
| 1853 | break; |
| 1854 | case SyncBoth: |
| 1855 | AllowSome(client, time, keybd, FREEZE_BOTH_NEXT_EVENT); |
| 1856 | break; |
| 1857 | case AsyncBoth: |
| 1858 | AllowSome(client, time, keybd, THAWED_BOTH); |
| 1859 | break; |
| 1860 | default: |
| 1861 | client->errorValue = stuff->mode; |
| 1862 | return BadValue; |
| 1863 | } |
| 1864 | return Success; |
| 1865 | } |
| 1866 | |
| 1867 | /** |
| 1868 | * Deactivate grabs from any device that has been grabbed by the client. |
| 1869 | */ |
| 1870 | void |
| 1871 | ReleaseActiveGrabs(ClientPtr client) |
| 1872 | { |
| 1873 | DeviceIntPtr dev; |
| 1874 | Bool done; |
| 1875 | |
| 1876 | /* XXX CloseDownClient should remove passive grabs before |
| 1877 | * releasing active grabs. |
| 1878 | */ |
| 1879 | do { |
| 1880 | done = TRUE; |
| 1881 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 1882 | if (dev->deviceGrab.grab && |
| 1883 | SameClient(dev->deviceGrab.grab, client)) { |
| 1884 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 1885 | done = FALSE; |
| 1886 | } |
| 1887 | } |
| 1888 | } while (!done); |
| 1889 | } |
| 1890 | |
| 1891 | /************************************************************************** |
| 1892 | * The following procedures deal with delivering events * |
| 1893 | **************************************************************************/ |
| 1894 | |
| 1895 | /** |
| 1896 | * Deliver the given events to the given client. |
| 1897 | * |
| 1898 | * More than one event may be delivered at a time. This is the case with |
| 1899 | * DeviceMotionNotifies which may be followed by DeviceValuator events. |
| 1900 | * |
| 1901 | * TryClientEvents() is the last station before actually writing the events to |
| 1902 | * the socket. Anything that is not filtered here, will get delivered to the |
| 1903 | * client. |
| 1904 | * An event is only delivered if |
| 1905 | * - mask and filter match up. |
| 1906 | * - no other client has a grab on the device that caused the event. |
| 1907 | * |
| 1908 | * |
| 1909 | * @param client The target client to deliver to. |
| 1910 | * @param dev The device the event came from. May be NULL. |
| 1911 | * @param pEvents The events to be delivered. |
| 1912 | * @param count Number of elements in pEvents. |
| 1913 | * @param mask Event mask as set by the window. |
| 1914 | * @param filter Mask based on event type. |
| 1915 | * @param grab Possible grab on the device that caused the event. |
| 1916 | * |
| 1917 | * @return 1 if event was delivered, 0 if not or -1 if grab was not set by the |
| 1918 | * client. |
| 1919 | */ |
| 1920 | int |
| 1921 | TryClientEvents(ClientPtr client, DeviceIntPtr dev, xEvent *pEvents, |
| 1922 | int count, Mask mask, Mask filter, GrabPtr grab) |
| 1923 | { |
| 1924 | int type; |
| 1925 | |
| 1926 | #ifdef DEBUG_EVENTS |
| 1927 | ErrorF("[dix] Event([%d, %d], mask=0x%lx), client=%d%s", |
| 1928 | pEvents->u.u.type, pEvents->u.u.detail, mask, |
| 1929 | client ? client->index : -1, |
| 1930 | (client && client->clientGone) ? " (gone)" : ""); |
| 1931 | #endif |
| 1932 | |
| 1933 | if (!client || client == serverClient || client->clientGone) { |
| 1934 | #ifdef DEBUG_EVENTS |
| 1935 | ErrorF(" not delivered to fake/dead client\n"); |
| 1936 | #endif |
| 1937 | return 0; |
| 1938 | } |
| 1939 | |
| 1940 | if (filter != CantBeFiltered && !(mask & filter)) { |
| 1941 | #ifdef DEBUG_EVENTS |
| 1942 | ErrorF(" filtered\n"); |
| 1943 | #endif |
| 1944 | return 0; |
| 1945 | } |
| 1946 | |
| 1947 | if (grab && !SameClient(grab, client)) { |
| 1948 | #ifdef DEBUG_EVENTS |
| 1949 | ErrorF(" not delivered due to grab\n"); |
| 1950 | #endif |
| 1951 | return -1; /* don't send, but notify caller */ |
| 1952 | } |
| 1953 | |
| 1954 | type = pEvents->u.u.type; |
| 1955 | if (type == MotionNotify) { |
| 1956 | if (mask & PointerMotionHintMask) { |
| 1957 | if (WID(dev->valuator->motionHintWindow) == |
| 1958 | pEvents->u.keyButtonPointer.event) { |
| 1959 | #ifdef DEBUG_EVENTS |
| 1960 | ErrorF("[dix] \n"); |
| 1961 | ErrorF("[dix] motionHintWindow == keyButtonPointer.event\n"); |
| 1962 | #endif |
| 1963 | return 1; /* don't send, but pretend we did */ |
| 1964 | } |
| 1965 | pEvents->u.u.detail = NotifyHint; |
| 1966 | } |
| 1967 | else { |
| 1968 | pEvents->u.u.detail = NotifyNormal; |
| 1969 | } |
| 1970 | } |
| 1971 | else if (type == DeviceMotionNotify) { |
| 1972 | if (MaybeSendDeviceMotionNotifyHint((deviceKeyButtonPointer *) pEvents, |
| 1973 | mask) != 0) |
| 1974 | return 1; |
| 1975 | } |
| 1976 | else if (type == KeyPress) { |
| 1977 | if (EventIsKeyRepeat(pEvents)) { |
| 1978 | if (!_XkbWantsDetectableAutoRepeat(client)) { |
| 1979 | xEvent release = *pEvents; |
| 1980 | |
| 1981 | release.u.u.type = KeyRelease; |
| 1982 | WriteEventsToClient(client, 1, &release); |
| 1983 | #ifdef DEBUG_EVENTS |
| 1984 | ErrorF(" (plus fake core release for repeat)"); |
| 1985 | #endif |
| 1986 | } |
| 1987 | else { |
| 1988 | #ifdef DEBUG_EVENTS |
| 1989 | ErrorF(" (detectable autorepeat for core)"); |
| 1990 | #endif |
| 1991 | } |
| 1992 | } |
| 1993 | |
| 1994 | } |
| 1995 | else if (type == DeviceKeyPress) { |
| 1996 | if (EventIsKeyRepeat(pEvents)) { |
| 1997 | if (!_XkbWantsDetectableAutoRepeat(client)) { |
| 1998 | deviceKeyButtonPointer release = |
| 1999 | *(deviceKeyButtonPointer *) pEvents; |
| 2000 | release.type = DeviceKeyRelease; |
| 2001 | #ifdef DEBUG_EVENTS |
| 2002 | ErrorF(" (plus fake xi1 release for repeat)"); |
| 2003 | #endif |
| 2004 | WriteEventsToClient(client, 1, (xEvent *) &release); |
| 2005 | } |
| 2006 | else { |
| 2007 | #ifdef DEBUG_EVENTS |
| 2008 | ErrorF(" (detectable autorepeat for core)"); |
| 2009 | #endif |
| 2010 | } |
| 2011 | } |
| 2012 | } |
| 2013 | |
| 2014 | if (BitIsOn(criticalEvents, type)) { |
| 2015 | if (client->smart_priority < SMART_MAX_PRIORITY) |
| 2016 | client->smart_priority++; |
| 2017 | SetCriticalOutputPending(); |
| 2018 | } |
| 2019 | |
| 2020 | WriteEventsToClient(client, count, pEvents); |
| 2021 | #ifdef DEBUG_EVENTS |
| 2022 | ErrorF("[dix] delivered\n"); |
| 2023 | #endif |
| 2024 | return 1; |
| 2025 | } |
| 2026 | |
| 2027 | static BOOL |
| 2028 | ActivateImplicitGrab(DeviceIntPtr dev, ClientPtr client, WindowPtr win, |
| 2029 | xEvent *event, Mask deliveryMask) |
| 2030 | { |
| 2031 | GrabPtr tempGrab; |
| 2032 | OtherInputMasks *inputMasks; |
| 2033 | CARD8 type = event->u.u.type; |
| 2034 | enum InputLevel grabtype; |
| 2035 | |
| 2036 | if (type == ButtonPress) |
| 2037 | grabtype = CORE; |
| 2038 | else if (type == DeviceButtonPress) |
| 2039 | grabtype = XI; |
| 2040 | else if ((type = xi2_get_type(event)) == XI_ButtonPress) |
| 2041 | grabtype = XI2; |
| 2042 | else |
| 2043 | return FALSE; |
| 2044 | |
| 2045 | tempGrab = AllocGrab(NULL); |
| 2046 | if (!tempGrab) |
| 2047 | return FALSE; |
| 2048 | tempGrab->next = NULL; |
| 2049 | tempGrab->device = dev; |
| 2050 | tempGrab->resource = client->clientAsMask; |
| 2051 | tempGrab->window = win; |
| 2052 | tempGrab->ownerEvents = (deliveryMask & OwnerGrabButtonMask) ? TRUE : FALSE; |
| 2053 | tempGrab->eventMask = deliveryMask; |
| 2054 | tempGrab->keyboardMode = GrabModeAsync; |
| 2055 | tempGrab->pointerMode = GrabModeAsync; |
| 2056 | tempGrab->confineTo = NullWindow; |
| 2057 | tempGrab->cursor = NullCursor; |
| 2058 | tempGrab->type = type; |
| 2059 | tempGrab->grabtype = grabtype; |
| 2060 | |
| 2061 | /* get the XI and XI2 device mask */ |
| 2062 | inputMasks = wOtherInputMasks(win); |
| 2063 | tempGrab->deviceMask = (inputMasks) ? inputMasks->inputEvents[dev->id] : 0; |
| 2064 | |
| 2065 | if (inputMasks) |
| 2066 | xi2mask_merge(tempGrab->xi2mask, inputMasks->xi2mask); |
| 2067 | |
| 2068 | (*dev->deviceGrab.ActivateGrab) (dev, tempGrab, |
| 2069 | currentTime, TRUE | ImplicitGrabMask); |
| 2070 | FreeGrab(tempGrab); |
| 2071 | return TRUE; |
| 2072 | } |
| 2073 | |
| 2074 | /** |
| 2075 | * Attempt event delivery to the client owning the window. |
| 2076 | */ |
| 2077 | static enum EventDeliveryState |
| 2078 | DeliverToWindowOwner(DeviceIntPtr dev, WindowPtr win, |
| 2079 | xEvent *events, int count, Mask filter, GrabPtr grab) |
| 2080 | { |
| 2081 | /* if nobody ever wants to see this event, skip some work */ |
| 2082 | if (filter != CantBeFiltered && |
| 2083 | !((wOtherEventMasks(win) | win->eventMask) & filter)) |
| 2084 | return EVENT_SKIP; |
| 2085 | |
| 2086 | if (IsInterferingGrab(wClient(win), dev, events)) |
| 2087 | return EVENT_SKIP; |
| 2088 | |
| 2089 | if (!XaceHook(XACE_RECEIVE_ACCESS, wClient(win), win, events, count)) { |
| 2090 | int attempt = TryClientEvents(wClient(win), dev, events, |
| 2091 | count, win->eventMask, |
| 2092 | filter, grab); |
| 2093 | |
| 2094 | if (attempt > 0) |
| 2095 | return EVENT_DELIVERED; |
| 2096 | if (attempt < 0) |
| 2097 | return EVENT_REJECTED; |
| 2098 | } |
| 2099 | |
| 2100 | return EVENT_NOT_DELIVERED; |
| 2101 | } |
| 2102 | |
| 2103 | /** |
| 2104 | * Get the list of clients that should be tried for event delivery on the |
| 2105 | * given window. |
| 2106 | * |
| 2107 | * @return 1 if the client list should be traversed, zero if the event |
| 2108 | * should be skipped. |
| 2109 | */ |
| 2110 | static Bool |
| 2111 | GetClientsForDelivery(DeviceIntPtr dev, WindowPtr win, |
| 2112 | xEvent *events, Mask filter, InputClients ** iclients) |
| 2113 | { |
| 2114 | int rc = 0; |
| 2115 | |
| 2116 | if (core_get_type(events) != 0) |
| 2117 | *iclients = (InputClients *) wOtherClients(win); |
| 2118 | else if (xi2_get_type(events) != 0) { |
| 2119 | OtherInputMasks *inputMasks = wOtherInputMasks(win); |
| 2120 | |
| 2121 | /* Has any client selected for the event? */ |
| 2122 | if (!WindowXI2MaskIsset(dev, win, events)) |
| 2123 | goto out; |
| 2124 | *iclients = inputMasks->inputClients; |
| 2125 | } |
| 2126 | else { |
| 2127 | OtherInputMasks *inputMasks = wOtherInputMasks(win); |
| 2128 | |
| 2129 | /* Has any client selected for the event? */ |
| 2130 | if (!inputMasks || !(inputMasks->inputEvents[dev->id] & filter)) |
| 2131 | goto out; |
| 2132 | |
| 2133 | *iclients = inputMasks->inputClients; |
| 2134 | } |
| 2135 | |
| 2136 | rc = 1; |
| 2137 | out: |
| 2138 | return rc; |
| 2139 | } |
| 2140 | |
| 2141 | /** |
| 2142 | * Try delivery on each client in inputclients, provided the event mask |
| 2143 | * accepts it and there is no interfering core grab.. |
| 2144 | */ |
| 2145 | static enum EventDeliveryState |
| 2146 | DeliverEventToInputClients(DeviceIntPtr dev, InputClients * inputclients, |
| 2147 | WindowPtr win, xEvent *events, |
| 2148 | int count, Mask filter, GrabPtr grab, |
| 2149 | ClientPtr *client_return, Mask *mask_return) |
| 2150 | { |
| 2151 | int attempt; |
| 2152 | enum EventDeliveryState rc = EVENT_NOT_DELIVERED; |
| 2153 | Bool have_device_button_grab_class_client = FALSE; |
| 2154 | |
| 2155 | for (; inputclients; inputclients = inputclients->next) { |
| 2156 | Mask mask; |
| 2157 | ClientPtr client = rClient(inputclients); |
| 2158 | |
| 2159 | if (IsInterferingGrab(client, dev, events)) |
| 2160 | continue; |
| 2161 | |
| 2162 | if (IsWrongPointerBarrierClient(client, dev, events)) |
| 2163 | continue; |
| 2164 | |
| 2165 | mask = GetEventMask(dev, events, inputclients); |
| 2166 | |
| 2167 | if (XaceHook(XACE_RECEIVE_ACCESS, client, win, events, count)) |
| 2168 | /* do nothing */ ; |
| 2169 | else if ((attempt = TryClientEvents(client, dev, |
| 2170 | events, count, |
| 2171 | mask, filter, grab))) { |
| 2172 | if (attempt > 0) { |
| 2173 | /* |
| 2174 | * The order of clients is arbitrary therefore if one |
| 2175 | * client belongs to DeviceButtonGrabClass make sure to |
| 2176 | * catch it. |
| 2177 | */ |
| 2178 | if (!have_device_button_grab_class_client) { |
| 2179 | rc = EVENT_DELIVERED; |
| 2180 | *client_return = client; |
| 2181 | *mask_return = mask; |
| 2182 | /* Success overrides non-success, so if we've been |
| 2183 | * successful on one client, return that */ |
| 2184 | if (mask & DeviceButtonGrabMask) |
| 2185 | have_device_button_grab_class_client = TRUE; |
| 2186 | } |
| 2187 | } else if (rc == EVENT_NOT_DELIVERED) |
| 2188 | rc = EVENT_REJECTED; |
| 2189 | } |
| 2190 | } |
| 2191 | |
| 2192 | return rc; |
| 2193 | } |
| 2194 | |
| 2195 | /** |
| 2196 | * Deliver events to clients registered on the window. |
| 2197 | * |
| 2198 | * @param client_return On successful delivery, set to the recipient. |
| 2199 | * @param mask_return On successful delivery, set to the recipient's event |
| 2200 | * mask for this event. |
| 2201 | */ |
| 2202 | static enum EventDeliveryState |
| 2203 | DeliverEventToWindowMask(DeviceIntPtr dev, WindowPtr win, xEvent *events, |
| 2204 | int count, Mask filter, GrabPtr grab, |
| 2205 | ClientPtr *client_return, Mask *mask_return) |
| 2206 | { |
| 2207 | InputClients *iclients; |
| 2208 | |
| 2209 | if (!GetClientsForDelivery(dev, win, events, filter, &iclients)) |
| 2210 | return EVENT_SKIP; |
| 2211 | |
| 2212 | return DeliverEventToInputClients(dev, iclients, win, events, count, filter, |
| 2213 | grab, client_return, mask_return); |
| 2214 | |
| 2215 | } |
| 2216 | |
| 2217 | /** |
| 2218 | * Deliver events to a window. At this point, we do not yet know if the event |
| 2219 | * actually needs to be delivered. May activate a grab if the event is a |
| 2220 | * button press. |
| 2221 | * |
| 2222 | * Core events are always delivered to the window owner. If the filter is |
| 2223 | * something other than CantBeFiltered, the event is also delivered to other |
| 2224 | * clients with the matching mask on the window. |
| 2225 | * |
| 2226 | * More than one event may be delivered at a time. This is the case with |
| 2227 | * DeviceMotionNotifies which may be followed by DeviceValuator events. |
| 2228 | * |
| 2229 | * @param pWin The window that would get the event. |
| 2230 | * @param pEvents The events to be delivered. |
| 2231 | * @param count Number of elements in pEvents. |
| 2232 | * @param filter Mask based on event type. |
| 2233 | * @param grab Possible grab on the device that caused the event. |
| 2234 | * |
| 2235 | * @return a positive number if at least one successful delivery has been |
| 2236 | * made, 0 if no events were delivered, or a negative number if the event |
| 2237 | * has not been delivered _and_ rejected by at least one client. |
| 2238 | */ |
| 2239 | int |
| 2240 | DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent |
| 2241 | *pEvents, int count, Mask filter, GrabPtr grab) |
| 2242 | { |
| 2243 | int deliveries = 0, nondeliveries = 0; |
| 2244 | ClientPtr client = NullClient; |
| 2245 | Mask deliveryMask = 0; /* If a grab occurs due to a button press, then |
| 2246 | this mask is the mask of the grab. */ |
| 2247 | int type = pEvents->u.u.type; |
| 2248 | |
| 2249 | /* Deliver to window owner */ |
| 2250 | if ((filter == CantBeFiltered) || core_get_type(pEvents) != 0) { |
| 2251 | enum EventDeliveryState rc; |
| 2252 | |
| 2253 | rc = DeliverToWindowOwner(pDev, pWin, pEvents, count, filter, grab); |
| 2254 | |
| 2255 | switch (rc) { |
| 2256 | case EVENT_SKIP: |
| 2257 | return 0; |
| 2258 | case EVENT_REJECTED: |
| 2259 | nondeliveries--; |
| 2260 | break; |
| 2261 | case EVENT_DELIVERED: |
| 2262 | /* We delivered to the owner, with our event mask */ |
| 2263 | deliveries++; |
| 2264 | client = wClient(pWin); |
| 2265 | deliveryMask = pWin->eventMask; |
| 2266 | break; |
| 2267 | case EVENT_NOT_DELIVERED: |
| 2268 | break; |
| 2269 | } |
| 2270 | } |
| 2271 | |
| 2272 | /* CantBeFiltered means only window owner gets the event */ |
| 2273 | if (filter != CantBeFiltered) { |
| 2274 | enum EventDeliveryState rc; |
| 2275 | |
| 2276 | rc = DeliverEventToWindowMask(pDev, pWin, pEvents, count, filter, |
| 2277 | grab, &client, &deliveryMask); |
| 2278 | |
| 2279 | switch (rc) { |
| 2280 | case EVENT_SKIP: |
| 2281 | return 0; |
| 2282 | case EVENT_REJECTED: |
| 2283 | nondeliveries--; |
| 2284 | break; |
| 2285 | case EVENT_DELIVERED: |
| 2286 | deliveries++; |
| 2287 | break; |
| 2288 | case EVENT_NOT_DELIVERED: |
| 2289 | break; |
| 2290 | } |
| 2291 | } |
| 2292 | |
| 2293 | if (deliveries) { |
| 2294 | /* |
| 2295 | * Note that since core events are delivered first, an implicit grab may |
| 2296 | * be activated on a core grab, stopping the XI events. |
| 2297 | */ |
| 2298 | if (!grab && |
| 2299 | ActivateImplicitGrab(pDev, client, pWin, pEvents, deliveryMask)) |
| 2300 | /* grab activated */ ; |
| 2301 | else if (type == MotionNotify) |
| 2302 | pDev->valuator->motionHintWindow = pWin; |
| 2303 | else if (type == DeviceMotionNotify || type == DeviceButtonPress) |
| 2304 | CheckDeviceGrabAndHintWindow(pWin, type, |
| 2305 | (deviceKeyButtonPointer *) pEvents, |
| 2306 | grab, client, deliveryMask); |
| 2307 | return deliveries; |
| 2308 | } |
| 2309 | return nondeliveries; |
| 2310 | } |
| 2311 | |
| 2312 | /** |
| 2313 | * Filter out raw events for XI 2.0 and XI 2.1 clients. |
| 2314 | * |
| 2315 | * If there is a grab on the device, 2.0 clients only get raw events if they |
| 2316 | * have the grab. 2.1+ clients get raw events in all cases. |
| 2317 | * |
| 2318 | * @return TRUE if the event should be discarded, FALSE otherwise. |
| 2319 | */ |
| 2320 | static BOOL |
| 2321 | FilterRawEvents(const ClientPtr client, const GrabPtr grab, WindowPtr root) |
| 2322 | { |
| 2323 | XIClientPtr client_xi_version; |
| 2324 | int cmp; |
| 2325 | |
| 2326 | /* device not grabbed -> don't filter */ |
| 2327 | if (!grab) |
| 2328 | return FALSE; |
| 2329 | |
| 2330 | client_xi_version = |
| 2331 | dixLookupPrivate(&client->devPrivates, XIClientPrivateKey); |
| 2332 | |
| 2333 | cmp = version_compare(client_xi_version->major_version, |
| 2334 | client_xi_version->minor_version, 2, 0); |
| 2335 | /* XI 2.0: if device is grabbed, skip |
| 2336 | XI 2.1: if device is grabbed by us, skip, we've already delivered */ |
| 2337 | if (cmp == 0) |
| 2338 | return TRUE; |
| 2339 | |
| 2340 | return (grab->window != root) ? FALSE : SameClient(grab, client); |
| 2341 | } |
| 2342 | |
| 2343 | /** |
| 2344 | * Deliver a raw event to the grab owner (if any) and to all root windows. |
| 2345 | * |
| 2346 | * Raw event delivery differs between XI 2.0 and XI 2.1. |
| 2347 | * XI 2.0: events delivered to the grabbing client (if any) OR to all root |
| 2348 | * windows |
| 2349 | * XI 2.1: events delivered to all root windows, regardless of grabbing |
| 2350 | * state. |
| 2351 | */ |
| 2352 | void |
| 2353 | DeliverRawEvent(RawDeviceEvent *ev, DeviceIntPtr device) |
| 2354 | { |
| 2355 | GrabPtr grab = device->deviceGrab.grab; |
| 2356 | xEvent *xi; |
| 2357 | int i, rc; |
| 2358 | int filter; |
| 2359 | |
| 2360 | rc = EventToXI2((InternalEvent *) ev, (xEvent **) &xi); |
| 2361 | if (rc != Success) { |
| 2362 | ErrorF("[Xi] %s: XI2 conversion failed in %s (%d)\n", |
| 2363 | __func__, device->name, rc); |
| 2364 | return; |
| 2365 | } |
| 2366 | |
| 2367 | if (grab) |
| 2368 | DeliverGrabbedEvent((InternalEvent *) ev, device, FALSE); |
| 2369 | |
| 2370 | filter = GetEventFilter(device, xi); |
| 2371 | |
| 2372 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 2373 | WindowPtr root; |
| 2374 | InputClients *inputclients; |
| 2375 | |
| 2376 | root = screenInfo.screens[i]->root; |
| 2377 | if (!GetClientsForDelivery(device, root, xi, filter, &inputclients)) |
| 2378 | continue; |
| 2379 | |
| 2380 | for (; inputclients; inputclients = inputclients->next) { |
| 2381 | ClientPtr c; /* unused */ |
| 2382 | Mask m; /* unused */ |
| 2383 | InputClients ic = *inputclients; |
| 2384 | |
| 2385 | /* Because we run through the list manually, copy the actual |
| 2386 | * list, shorten the copy to only have one client and then pass |
| 2387 | * that down to DeliverEventToInputClients. This way we avoid |
| 2388 | * double events on XI 2.1 clients that have a grab on the |
| 2389 | * device. |
| 2390 | */ |
| 2391 | ic.next = NULL; |
| 2392 | |
| 2393 | if (!FilterRawEvents(rClient(&ic), grab, root)) |
| 2394 | DeliverEventToInputClients(device, &ic, root, xi, 1, |
| 2395 | filter, NULL, &c, &m); |
| 2396 | } |
| 2397 | } |
| 2398 | |
| 2399 | free(xi); |
| 2400 | } |
| 2401 | |
| 2402 | /* If the event goes to dontClient, don't send it and return 0. if |
| 2403 | send works, return 1 or if send didn't work, return 2. |
| 2404 | Only works for core events. |
| 2405 | */ |
| 2406 | |
| 2407 | #ifdef PANORAMIX |
| 2408 | static int |
| 2409 | XineramaTryClientEventsResult(ClientPtr client, |
| 2410 | GrabPtr grab, Mask mask, Mask filter) |
| 2411 | { |
| 2412 | if ((client) && (client != serverClient) && (!client->clientGone) && |
| 2413 | ((filter == CantBeFiltered) || (mask & filter))) { |
| 2414 | if (grab && !SameClient(grab, client)) |
| 2415 | return -1; |
| 2416 | else |
| 2417 | return 1; |
| 2418 | } |
| 2419 | return 0; |
| 2420 | } |
| 2421 | #endif |
| 2422 | |
| 2423 | /** |
| 2424 | * Try to deliver events to the interested parties. |
| 2425 | * |
| 2426 | * @param pWin The window that would get the event. |
| 2427 | * @param pEvents The events to be delivered. |
| 2428 | * @param count Number of elements in pEvents. |
| 2429 | * @param filter Mask based on event type. |
| 2430 | * @param dontClient Don't deliver to the dontClient. |
| 2431 | */ |
| 2432 | int |
| 2433 | MaybeDeliverEventsToClient(WindowPtr pWin, xEvent *pEvents, |
| 2434 | int count, Mask filter, ClientPtr dontClient) |
| 2435 | { |
| 2436 | OtherClients *other; |
| 2437 | |
| 2438 | if (pWin->eventMask & filter) { |
| 2439 | if (wClient(pWin) == dontClient) |
| 2440 | return 0; |
| 2441 | #ifdef PANORAMIX |
| 2442 | if (!noPanoramiXExtension && pWin->drawable.pScreen->myNum) |
| 2443 | return XineramaTryClientEventsResult(wClient(pWin), NullGrab, |
| 2444 | pWin->eventMask, filter); |
| 2445 | #endif |
| 2446 | if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count)) |
| 2447 | return 1; /* don't send, but pretend we did */ |
| 2448 | return TryClientEvents(wClient(pWin), NULL, pEvents, count, |
| 2449 | pWin->eventMask, filter, NullGrab); |
| 2450 | } |
| 2451 | for (other = wOtherClients(pWin); other; other = other->next) { |
| 2452 | if (other->mask & filter) { |
| 2453 | if (SameClient(other, dontClient)) |
| 2454 | return 0; |
| 2455 | #ifdef PANORAMIX |
| 2456 | if (!noPanoramiXExtension && pWin->drawable.pScreen->myNum) |
| 2457 | return XineramaTryClientEventsResult(rClient(other), NullGrab, |
| 2458 | other->mask, filter); |
| 2459 | #endif |
| 2460 | if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin, pEvents, |
| 2461 | count)) |
| 2462 | return 1; /* don't send, but pretend we did */ |
| 2463 | return TryClientEvents(rClient(other), NULL, pEvents, count, |
| 2464 | other->mask, filter, NullGrab); |
| 2465 | } |
| 2466 | } |
| 2467 | return 2; |
| 2468 | } |
| 2469 | |
| 2470 | static Window |
| 2471 | FindChildForEvent(SpritePtr pSprite, WindowPtr event) |
| 2472 | { |
| 2473 | WindowPtr w = DeepestSpriteWin(pSprite); |
| 2474 | Window child = None; |
| 2475 | |
| 2476 | /* If the search ends up past the root should the child field be |
| 2477 | set to none or should the value in the argument be passed |
| 2478 | through. It probably doesn't matter since everyone calls |
| 2479 | this function with child == None anyway. */ |
| 2480 | while (w) { |
| 2481 | /* If the source window is same as event window, child should be |
| 2482 | none. Don't bother going all all the way back to the root. */ |
| 2483 | |
| 2484 | if (w == event) { |
| 2485 | child = None; |
| 2486 | break; |
| 2487 | } |
| 2488 | |
| 2489 | if (w->parent == event) { |
| 2490 | child = w->drawable.id; |
| 2491 | break; |
| 2492 | } |
| 2493 | w = w->parent; |
| 2494 | } |
| 2495 | return child; |
| 2496 | } |
| 2497 | |
| 2498 | /** |
| 2499 | * Adjust event fields to comply with the window properties. |
| 2500 | * |
| 2501 | * @param xE Event to be modified in place |
| 2502 | * @param pWin The window to get the information from. |
| 2503 | * @param child Child window setting for event (if applicable) |
| 2504 | * @param calcChild If True, calculate the child window. |
| 2505 | */ |
| 2506 | void |
| 2507 | FixUpEventFromWindow(SpritePtr pSprite, |
| 2508 | xEvent *xE, WindowPtr pWin, Window child, Bool calcChild) |
| 2509 | { |
| 2510 | int evtype; |
| 2511 | |
| 2512 | if (calcChild) |
| 2513 | child = FindChildForEvent(pSprite, pWin); |
| 2514 | |
| 2515 | if ((evtype = xi2_get_type(xE))) { |
| 2516 | xXIDeviceEvent *event = (xXIDeviceEvent *) xE; |
| 2517 | |
| 2518 | switch (evtype) { |
| 2519 | case XI_RawKeyPress: |
| 2520 | case XI_RawKeyRelease: |
| 2521 | case XI_RawButtonPress: |
| 2522 | case XI_RawButtonRelease: |
| 2523 | case XI_RawMotion: |
| 2524 | case XI_RawTouchBegin: |
| 2525 | case XI_RawTouchUpdate: |
| 2526 | case XI_RawTouchEnd: |
| 2527 | case XI_DeviceChanged: |
| 2528 | case XI_HierarchyChanged: |
| 2529 | case XI_PropertyEvent: |
| 2530 | case XI_BarrierHit: |
| 2531 | case XI_BarrierLeave: |
| 2532 | return; |
| 2533 | default: |
| 2534 | break; |
| 2535 | } |
| 2536 | |
| 2537 | event->root = RootWindow(pSprite)->drawable.id; |
| 2538 | event->event = pWin->drawable.id; |
| 2539 | |
| 2540 | if (evtype == XI_TouchOwnership) { |
| 2541 | event->child = child; |
| 2542 | return; |
| 2543 | } |
| 2544 | |
| 2545 | if (pSprite->hot.pScreen == pWin->drawable.pScreen) { |
| 2546 | event->event_x = event->root_x - double_to_fp1616(pWin->drawable.x); |
| 2547 | event->event_y = event->root_y - double_to_fp1616(pWin->drawable.y); |
| 2548 | event->child = child; |
| 2549 | } |
| 2550 | else { |
| 2551 | event->event_x = 0; |
| 2552 | event->event_y = 0; |
| 2553 | event->child = None; |
| 2554 | } |
| 2555 | |
| 2556 | if (event->evtype == XI_Enter || event->evtype == XI_Leave || |
| 2557 | event->evtype == XI_FocusIn || event->evtype == XI_FocusOut) |
| 2558 | ((xXIEnterEvent *) event)->same_screen = |
| 2559 | (pSprite->hot.pScreen == pWin->drawable.pScreen); |
| 2560 | |
| 2561 | } |
| 2562 | else { |
| 2563 | XE_KBPTR.root = RootWindow(pSprite)->drawable.id; |
| 2564 | XE_KBPTR.event = pWin->drawable.id; |
| 2565 | if (pSprite->hot.pScreen == pWin->drawable.pScreen) { |
| 2566 | XE_KBPTR.sameScreen = xTrue; |
| 2567 | XE_KBPTR.child = child; |
| 2568 | XE_KBPTR.eventX = XE_KBPTR.rootX - pWin->drawable.x; |
| 2569 | XE_KBPTR.eventY = XE_KBPTR.rootY - pWin->drawable.y; |
| 2570 | } |
| 2571 | else { |
| 2572 | XE_KBPTR.sameScreen = xFalse; |
| 2573 | XE_KBPTR.child = None; |
| 2574 | XE_KBPTR.eventX = 0; |
| 2575 | XE_KBPTR.eventY = 0; |
| 2576 | } |
| 2577 | } |
| 2578 | } |
| 2579 | |
| 2580 | /** |
| 2581 | * Check if a given event is deliverable at all on a given window. |
| 2582 | * |
| 2583 | * This function only checks if any client wants it, not for a specific |
| 2584 | * client. |
| 2585 | * |
| 2586 | * @param[in] dev The device this event is being sent for. |
| 2587 | * @param[in] evtype The event type of the event that is to be sent. |
| 2588 | * @param[in] win The current event window. |
| 2589 | * |
| 2590 | * @return Bitmask of ::EVENT_XI2_MASK, ::EVENT_XI1_MASK, ::EVENT_CORE_MASK, and |
| 2591 | * ::EVENT_DONT_PROPAGATE_MASK. |
| 2592 | */ |
| 2593 | int |
| 2594 | EventIsDeliverable(DeviceIntPtr dev, int evtype, WindowPtr win) |
| 2595 | { |
| 2596 | int rc = 0; |
| 2597 | int filter = 0; |
| 2598 | int type; |
| 2599 | OtherInputMasks *inputMasks = wOtherInputMasks(win); |
| 2600 | |
| 2601 | if ((type = GetXI2Type(evtype)) != 0) { |
| 2602 | if (inputMasks && xi2mask_isset(inputMasks->xi2mask, dev, type)) |
| 2603 | rc |= EVENT_XI2_MASK; |
| 2604 | } |
| 2605 | |
| 2606 | if ((type = GetXIType(evtype)) != 0) { |
| 2607 | filter = event_get_filter_from_type(dev, type); |
| 2608 | |
| 2609 | /* Check for XI mask */ |
| 2610 | if (inputMasks && |
| 2611 | (inputMasks->deliverableEvents[dev->id] & filter) && |
| 2612 | (inputMasks->inputEvents[dev->id] & filter)) |
| 2613 | rc |= EVENT_XI1_MASK; |
| 2614 | |
| 2615 | /* Check for XI DontPropagate mask */ |
| 2616 | if (inputMasks && (inputMasks->dontPropagateMask[dev->id] & filter)) |
| 2617 | rc |= EVENT_DONT_PROPAGATE_MASK; |
| 2618 | |
| 2619 | } |
| 2620 | |
| 2621 | if ((type = GetCoreType(evtype)) != 0) { |
| 2622 | filter = event_get_filter_from_type(dev, type); |
| 2623 | |
| 2624 | /* Check for core mask */ |
| 2625 | if ((win->deliverableEvents & filter) && |
| 2626 | ((wOtherEventMasks(win) | win->eventMask) & filter)) |
| 2627 | rc |= EVENT_CORE_MASK; |
| 2628 | |
| 2629 | /* Check for core DontPropagate mask */ |
| 2630 | if (filter & wDontPropagateMask(win)) |
| 2631 | rc |= EVENT_DONT_PROPAGATE_MASK; |
| 2632 | } |
| 2633 | |
| 2634 | return rc; |
| 2635 | } |
| 2636 | |
| 2637 | static int |
| 2638 | DeliverEvent(DeviceIntPtr dev, xEvent *xE, int count, |
| 2639 | WindowPtr win, Window child, GrabPtr grab) |
| 2640 | { |
| 2641 | SpritePtr pSprite = dev->spriteInfo->sprite; |
| 2642 | Mask filter; |
| 2643 | int deliveries = 0; |
| 2644 | |
| 2645 | if (XaceHook(XACE_SEND_ACCESS, NULL, dev, win, xE, count) == Success) { |
| 2646 | filter = GetEventFilter(dev, xE); |
| 2647 | FixUpEventFromWindow(pSprite, xE, win, child, FALSE); |
| 2648 | deliveries = DeliverEventsToWindow(dev, win, xE, count, filter, grab); |
| 2649 | } |
| 2650 | |
| 2651 | return deliveries; |
| 2652 | } |
| 2653 | |
| 2654 | static int |
| 2655 | DeliverOneEvent(InternalEvent *event, DeviceIntPtr dev, enum InputLevel level, |
| 2656 | WindowPtr win, Window child, GrabPtr grab) |
| 2657 | { |
| 2658 | xEvent *xE = NULL; |
| 2659 | int count = 0; |
| 2660 | int deliveries = 0; |
| 2661 | int rc; |
| 2662 | |
| 2663 | switch (level) { |
| 2664 | case XI2: |
| 2665 | rc = EventToXI2(event, &xE); |
| 2666 | count = 1; |
| 2667 | break; |
| 2668 | case XI: |
| 2669 | rc = EventToXI(event, &xE, &count); |
| 2670 | break; |
| 2671 | case CORE: |
| 2672 | rc = EventToCore(event, &xE, &count); |
| 2673 | break; |
| 2674 | } |
| 2675 | |
| 2676 | if (rc == Success) { |
| 2677 | deliveries = DeliverEvent(dev, xE, count, win, child, grab); |
| 2678 | free(xE); |
| 2679 | } |
| 2680 | else |
| 2681 | BUG_WARN_MSG(rc != BadMatch, |
| 2682 | "%s: conversion to level %d failed with rc %d\n", |
| 2683 | dev->name, level, rc); |
| 2684 | return deliveries; |
| 2685 | } |
| 2686 | |
| 2687 | /** |
| 2688 | * Deliver events caused by input devices. |
| 2689 | * |
| 2690 | * For events from a non-grabbed, non-focus device, DeliverDeviceEvents is |
| 2691 | * called directly from the processInputProc. |
| 2692 | * For grabbed devices, DeliverGrabbedEvent is called first, and _may_ call |
| 2693 | * DeliverDeviceEvents. |
| 2694 | * For focused events, DeliverFocusedEvent is called first, and _may_ call |
| 2695 | * DeliverDeviceEvents. |
| 2696 | * |
| 2697 | * @param pWin Window to deliver event to. |
| 2698 | * @param event The events to deliver, not yet in wire format. |
| 2699 | * @param grab Possible grab on a device. |
| 2700 | * @param stopAt Don't recurse up to the root window. |
| 2701 | * @param dev The device that is responsible for the event. |
| 2702 | * |
| 2703 | * @see DeliverGrabbedEvent |
| 2704 | * @see DeliverFocusedEvent |
| 2705 | */ |
| 2706 | int |
| 2707 | DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab, |
| 2708 | WindowPtr stopAt, DeviceIntPtr dev) |
| 2709 | { |
| 2710 | Window child = None; |
| 2711 | int deliveries = 0; |
| 2712 | int mask; |
| 2713 | |
| 2714 | verify_internal_event(event); |
| 2715 | |
| 2716 | while (pWin) { |
| 2717 | if ((mask = EventIsDeliverable(dev, event->any.type, pWin))) { |
| 2718 | /* XI2 events first */ |
| 2719 | if (mask & EVENT_XI2_MASK) { |
| 2720 | deliveries = |
| 2721 | DeliverOneEvent(event, dev, XI2, pWin, child, grab); |
| 2722 | if (deliveries > 0) |
| 2723 | break; |
| 2724 | } |
| 2725 | |
| 2726 | /* XI events */ |
| 2727 | if (mask & EVENT_XI1_MASK) { |
| 2728 | deliveries = DeliverOneEvent(event, dev, XI, pWin, child, grab); |
| 2729 | if (deliveries > 0) |
| 2730 | break; |
| 2731 | } |
| 2732 | |
| 2733 | /* Core event */ |
| 2734 | if ((mask & EVENT_CORE_MASK) && IsMaster(dev) && dev->coreEvents) { |
| 2735 | deliveries = |
| 2736 | DeliverOneEvent(event, dev, CORE, pWin, child, grab); |
| 2737 | if (deliveries > 0) |
| 2738 | break; |
| 2739 | } |
| 2740 | |
| 2741 | } |
| 2742 | |
| 2743 | if ((deliveries < 0) || (pWin == stopAt) || |
| 2744 | (mask & EVENT_DONT_PROPAGATE_MASK)) { |
| 2745 | deliveries = 0; |
| 2746 | break; |
| 2747 | } |
| 2748 | |
| 2749 | child = pWin->drawable.id; |
| 2750 | pWin = pWin->parent; |
| 2751 | } |
| 2752 | |
| 2753 | return deliveries; |
| 2754 | } |
| 2755 | |
| 2756 | /** |
| 2757 | * Deliver event to a window and it's immediate parent. Used for most window |
| 2758 | * events (CreateNotify, ConfigureNotify, etc.). Not useful for events that |
| 2759 | * propagate up the tree or extension events |
| 2760 | * |
| 2761 | * In case of a ReparentNotify event, the event will be delivered to the |
| 2762 | * otherParent as well. |
| 2763 | * |
| 2764 | * @param pWin Window to deliver events to. |
| 2765 | * @param xE Events to deliver. |
| 2766 | * @param count number of events in xE. |
| 2767 | * @param otherParent Used for ReparentNotify events. |
| 2768 | */ |
| 2769 | int |
| 2770 | DeliverEvents(WindowPtr pWin, xEvent *xE, int count, WindowPtr otherParent) |
| 2771 | { |
| 2772 | DeviceIntRec dummy; |
| 2773 | int deliveries; |
| 2774 | |
| 2775 | #ifdef PANORAMIX |
| 2776 | if (!noPanoramiXExtension && pWin->drawable.pScreen->myNum) |
| 2777 | return count; |
| 2778 | #endif |
| 2779 | |
| 2780 | if (!count) |
| 2781 | return 0; |
| 2782 | |
| 2783 | dummy.id = XIAllDevices; |
| 2784 | |
| 2785 | switch (xE->u.u.type) { |
| 2786 | case DestroyNotify: |
| 2787 | case UnmapNotify: |
| 2788 | case MapNotify: |
| 2789 | case MapRequest: |
| 2790 | case ReparentNotify: |
| 2791 | case ConfigureNotify: |
| 2792 | case ConfigureRequest: |
| 2793 | case GravityNotify: |
| 2794 | case CirculateNotify: |
| 2795 | case CirculateRequest: |
| 2796 | xE->u.destroyNotify.event = pWin->drawable.id; |
| 2797 | break; |
| 2798 | } |
| 2799 | |
| 2800 | switch (xE->u.u.type) { |
| 2801 | case DestroyNotify: |
| 2802 | case UnmapNotify: |
| 2803 | case MapNotify: |
| 2804 | case ReparentNotify: |
| 2805 | case ConfigureNotify: |
| 2806 | case GravityNotify: |
| 2807 | case CirculateNotify: |
| 2808 | break; |
| 2809 | default: |
| 2810 | { |
| 2811 | Mask filter; |
| 2812 | |
| 2813 | filter = GetEventFilter(&dummy, xE); |
| 2814 | return DeliverEventsToWindow(&dummy, pWin, xE, count, filter, NullGrab); |
| 2815 | } |
| 2816 | } |
| 2817 | |
| 2818 | deliveries = DeliverEventsToWindow(&dummy, pWin, xE, count, |
| 2819 | StructureNotifyMask, NullGrab); |
| 2820 | if (pWin->parent) { |
| 2821 | xE->u.destroyNotify.event = pWin->parent->drawable.id; |
| 2822 | deliveries += DeliverEventsToWindow(&dummy, pWin->parent, xE, count, |
| 2823 | SubstructureNotifyMask, NullGrab); |
| 2824 | if (xE->u.u.type == ReparentNotify) { |
| 2825 | xE->u.destroyNotify.event = otherParent->drawable.id; |
| 2826 | deliveries += DeliverEventsToWindow(&dummy, |
| 2827 | otherParent, xE, count, |
| 2828 | SubstructureNotifyMask, |
| 2829 | NullGrab); |
| 2830 | } |
| 2831 | } |
| 2832 | return deliveries; |
| 2833 | } |
| 2834 | |
| 2835 | static Bool |
| 2836 | PointInBorderSize(WindowPtr pWin, int x, int y) |
| 2837 | { |
| 2838 | BoxRec box; |
| 2839 | |
| 2840 | if (RegionContainsPoint(&pWin->borderSize, x, y, &box)) |
| 2841 | return TRUE; |
| 2842 | |
| 2843 | #ifdef PANORAMIX |
| 2844 | if (!noPanoramiXExtension && |
| 2845 | XineramaSetWindowPntrs(inputInfo.pointer, pWin)) { |
| 2846 | SpritePtr pSprite = inputInfo.pointer->spriteInfo->sprite; |
| 2847 | int i; |
| 2848 | |
| 2849 | FOR_NSCREENS_FORWARD_SKIP(i) { |
| 2850 | if (RegionContainsPoint(&pSprite->windows[i]->borderSize, |
| 2851 | x + screenInfo.screens[0]->x - |
| 2852 | screenInfo.screens[i]->x, |
| 2853 | y + screenInfo.screens[0]->y - |
| 2854 | screenInfo.screens[i]->y, &box)) |
| 2855 | return TRUE; |
| 2856 | } |
| 2857 | } |
| 2858 | #endif |
| 2859 | return FALSE; |
| 2860 | } |
| 2861 | |
| 2862 | /** |
| 2863 | * Traversed from the root window to the window at the position x/y. While |
| 2864 | * traversing, it sets up the traversal history in the spriteTrace array. |
| 2865 | * After completing, the spriteTrace history is set in the following way: |
| 2866 | * spriteTrace[0] ... root window |
| 2867 | * spriteTrace[1] ... top level window that encloses x/y |
| 2868 | * ... |
| 2869 | * spriteTrace[spriteTraceGood - 1] ... window at x/y |
| 2870 | * |
| 2871 | * @returns the window at the given coordinates. |
| 2872 | */ |
| 2873 | WindowPtr |
| 2874 | XYToWindow(SpritePtr pSprite, int x, int y) |
| 2875 | { |
| 2876 | WindowPtr pWin; |
| 2877 | BoxRec box; |
| 2878 | |
| 2879 | pSprite->spriteTraceGood = 1; /* root window still there */ |
| 2880 | pWin = RootWindow(pSprite)->firstChild; |
| 2881 | while (pWin) { |
| 2882 | if ((pWin->mapped) && |
| 2883 | (x >= pWin->drawable.x - wBorderWidth(pWin)) && |
| 2884 | (x < pWin->drawable.x + (int) pWin->drawable.width + |
| 2885 | wBorderWidth(pWin)) && |
| 2886 | (y >= pWin->drawable.y - wBorderWidth(pWin)) && |
| 2887 | (y < pWin->drawable.y + (int) pWin->drawable.height + |
| 2888 | wBorderWidth(pWin)) |
| 2889 | /* When a window is shaped, a further check |
| 2890 | * is made to see if the point is inside |
| 2891 | * borderSize |
| 2892 | */ |
| 2893 | && (!wBoundingShape(pWin) || PointInBorderSize(pWin, x, y)) |
| 2894 | && (!wInputShape(pWin) || |
| 2895 | RegionContainsPoint(wInputShape(pWin), |
| 2896 | x - pWin->drawable.x, |
| 2897 | y - pWin->drawable.y, &box)) |
| 2898 | #ifdef ROOTLESS |
| 2899 | /* In rootless mode windows may be offscreen, even when |
| 2900 | * they're in X's stack. (E.g. if the native window system |
| 2901 | * implements some form of virtual desktop system). |
| 2902 | */ |
| 2903 | && !pWin->rootlessUnhittable |
| 2904 | #endif |
| 2905 | ) { |
| 2906 | if (pSprite->spriteTraceGood >= pSprite->spriteTraceSize) { |
| 2907 | pSprite->spriteTraceSize += 10; |
| 2908 | pSprite->spriteTrace = realloc(pSprite->spriteTrace, |
| 2909 | pSprite->spriteTraceSize * |
| 2910 | sizeof(WindowPtr)); |
| 2911 | } |
| 2912 | pSprite->spriteTrace[pSprite->spriteTraceGood++] = pWin; |
| 2913 | pWin = pWin->firstChild; |
| 2914 | } |
| 2915 | else |
| 2916 | pWin = pWin->nextSib; |
| 2917 | } |
| 2918 | return DeepestSpriteWin(pSprite); |
| 2919 | } |
| 2920 | |
| 2921 | /** |
| 2922 | * Ungrab a currently FocusIn grabbed device and grab the device on the |
| 2923 | * given window. If the win given is the NoneWin, the device is ungrabbed if |
| 2924 | * applicable and FALSE is returned. |
| 2925 | * |
| 2926 | * @returns TRUE if the device has been grabbed, or FALSE otherwise. |
| 2927 | */ |
| 2928 | BOOL |
| 2929 | ActivateFocusInGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win) |
| 2930 | { |
| 2931 | BOOL rc = FALSE; |
| 2932 | DeviceEvent event; |
| 2933 | |
| 2934 | if (dev->deviceGrab.grab) { |
| 2935 | if (!dev->deviceGrab.fromPassiveGrab || |
| 2936 | dev->deviceGrab.grab->type != XI_Enter || |
| 2937 | dev->deviceGrab.grab->window == win || |
| 2938 | IsParent(dev->deviceGrab.grab->window, win)) |
| 2939 | return FALSE; |
| 2940 | DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab); |
| 2941 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 2942 | } |
| 2943 | |
| 2944 | if (win == NoneWin || win == PointerRootWin) |
| 2945 | return FALSE; |
| 2946 | |
| 2947 | event = (DeviceEvent) { |
| 2948 | .header = ET_Internal, |
| 2949 | .type = ET_FocusIn, |
| 2950 | .length = sizeof(DeviceEvent), |
| 2951 | .time = GetTimeInMillis(), |
| 2952 | .deviceid = dev->id, |
| 2953 | .sourceid = dev->id, |
| 2954 | .detail.button = 0 |
| 2955 | }; |
| 2956 | rc = (CheckPassiveGrabsOnWindow(win, dev, (InternalEvent *) &event, FALSE, |
| 2957 | TRUE) != NULL); |
| 2958 | if (rc) |
| 2959 | DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab); |
| 2960 | return rc; |
| 2961 | } |
| 2962 | |
| 2963 | /** |
| 2964 | * Ungrab a currently Enter grabbed device and grab the device for the given |
| 2965 | * window. |
| 2966 | * |
| 2967 | * @returns TRUE if the device has been grabbed, or FALSE otherwise. |
| 2968 | */ |
| 2969 | static BOOL |
| 2970 | ActivateEnterGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win) |
| 2971 | { |
| 2972 | BOOL rc = FALSE; |
| 2973 | DeviceEvent event; |
| 2974 | |
| 2975 | if (dev->deviceGrab.grab) { |
| 2976 | if (!dev->deviceGrab.fromPassiveGrab || |
| 2977 | dev->deviceGrab.grab->type != XI_Enter || |
| 2978 | dev->deviceGrab.grab->window == win || |
| 2979 | IsParent(dev->deviceGrab.grab->window, win)) |
| 2980 | return FALSE; |
| 2981 | DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab); |
| 2982 | (*dev->deviceGrab.DeactivateGrab) (dev); |
| 2983 | } |
| 2984 | |
| 2985 | event = (DeviceEvent) { |
| 2986 | .header = ET_Internal, |
| 2987 | .type = ET_Enter, |
| 2988 | .length = sizeof(DeviceEvent), |
| 2989 | .time = GetTimeInMillis(), |
| 2990 | .deviceid = dev->id, |
| 2991 | .sourceid = dev->id, |
| 2992 | .detail.button = 0 |
| 2993 | }; |
| 2994 | rc = (CheckPassiveGrabsOnWindow(win, dev, (InternalEvent *) &event, FALSE, |
| 2995 | TRUE) != NULL); |
| 2996 | if (rc) |
| 2997 | DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveGrab); |
| 2998 | return rc; |
| 2999 | } |
| 3000 | |
| 3001 | /** |
| 3002 | * Update the sprite coordinates based on the event. Update the cursor |
| 3003 | * position, then update the event with the new coordinates that may have been |
| 3004 | * changed. If the window underneath the sprite has changed, change to new |
| 3005 | * cursor and send enter/leave events. |
| 3006 | * |
| 3007 | * CheckMotion() will not do anything and return FALSE if the event is not a |
| 3008 | * pointer event. |
| 3009 | * |
| 3010 | * @return TRUE if the sprite has moved or FALSE otherwise. |
| 3011 | */ |
| 3012 | Bool |
| 3013 | CheckMotion(DeviceEvent *ev, DeviceIntPtr pDev) |
| 3014 | { |
| 3015 | WindowPtr prevSpriteWin, newSpriteWin; |
| 3016 | SpritePtr pSprite = pDev->spriteInfo->sprite; |
| 3017 | |
| 3018 | verify_internal_event((InternalEvent *) ev); |
| 3019 | |
| 3020 | prevSpriteWin = pSprite->win; |
| 3021 | |
| 3022 | if (ev && !syncEvents.playingEvents) { |
| 3023 | /* GetPointerEvents() guarantees that pointer events have the correct |
| 3024 | rootX/Y set already. */ |
| 3025 | switch (ev->type) { |
| 3026 | case ET_ButtonPress: |
| 3027 | case ET_ButtonRelease: |
| 3028 | case ET_Motion: |
| 3029 | case ET_TouchBegin: |
| 3030 | case ET_TouchUpdate: |
| 3031 | case ET_TouchEnd: |
| 3032 | break; |
| 3033 | default: |
| 3034 | /* all other events return FALSE */ |
| 3035 | return FALSE; |
| 3036 | } |
| 3037 | |
| 3038 | #ifdef PANORAMIX |
| 3039 | if (!noPanoramiXExtension) { |
| 3040 | /* Motion events entering DIX get translated to Screen 0 |
| 3041 | coordinates. Replayed events have already been |
| 3042 | translated since they've entered DIX before */ |
| 3043 | ev->root_x += pSprite->screen->x - screenInfo.screens[0]->x; |
| 3044 | ev->root_y += pSprite->screen->y - screenInfo.screens[0]->y; |
| 3045 | } |
| 3046 | else |
| 3047 | #endif |
| 3048 | { |
| 3049 | if (pSprite->hot.pScreen != pSprite->hotPhys.pScreen) { |
| 3050 | pSprite->hot.pScreen = pSprite->hotPhys.pScreen; |
| 3051 | RootWindow(pDev->spriteInfo->sprite) = |
| 3052 | pSprite->hot.pScreen->root; |
| 3053 | } |
| 3054 | } |
| 3055 | |
| 3056 | pSprite->hot.x = ev->root_x; |
| 3057 | pSprite->hot.y = ev->root_y; |
| 3058 | if (pSprite->hot.x < pSprite->physLimits.x1) |
| 3059 | pSprite->hot.x = pSprite->physLimits.x1; |
| 3060 | else if (pSprite->hot.x >= pSprite->physLimits.x2) |
| 3061 | pSprite->hot.x = pSprite->physLimits.x2 - 1; |
| 3062 | if (pSprite->hot.y < pSprite->physLimits.y1) |
| 3063 | pSprite->hot.y = pSprite->physLimits.y1; |
| 3064 | else if (pSprite->hot.y >= pSprite->physLimits.y2) |
| 3065 | pSprite->hot.y = pSprite->physLimits.y2 - 1; |
| 3066 | if (pSprite->hotShape) |
| 3067 | ConfineToShape(pDev, pSprite->hotShape, &pSprite->hot.x, |
| 3068 | &pSprite->hot.y); |
| 3069 | pSprite->hotPhys = pSprite->hot; |
| 3070 | |
| 3071 | if ((pSprite->hotPhys.x != ev->root_x) || |
| 3072 | (pSprite->hotPhys.y != ev->root_y)) { |
| 3073 | #ifdef PANORAMIX |
| 3074 | if (!noPanoramiXExtension) { |
| 3075 | XineramaSetCursorPosition(pDev, pSprite->hotPhys.x, |
| 3076 | pSprite->hotPhys.y, FALSE); |
| 3077 | } |
| 3078 | else |
| 3079 | #endif |
| 3080 | { |
| 3081 | (*pSprite->hotPhys.pScreen->SetCursorPosition) (pDev, |
| 3082 | pSprite-> |
| 3083 | hotPhys.pScreen, |
| 3084 | pSprite-> |
| 3085 | hotPhys.x, |
| 3086 | pSprite-> |
| 3087 | hotPhys.y, |
| 3088 | FALSE); |
| 3089 | } |
| 3090 | } |
| 3091 | |
| 3092 | ev->root_x = pSprite->hot.x; |
| 3093 | ev->root_y = pSprite->hot.y; |
| 3094 | } |
| 3095 | |
| 3096 | newSpriteWin = XYToWindow(pSprite, pSprite->hot.x, pSprite->hot.y); |
| 3097 | |
| 3098 | if (newSpriteWin != prevSpriteWin) { |
| 3099 | int sourceid; |
| 3100 | |
| 3101 | if (!ev) { |
| 3102 | UpdateCurrentTimeIf(); |
| 3103 | sourceid = pDev->id; /* when from WindowsRestructured */ |
| 3104 | } |
| 3105 | else |
| 3106 | sourceid = ev->sourceid; |
| 3107 | |
| 3108 | if (prevSpriteWin != NullWindow) { |
| 3109 | if (!ActivateEnterGrab(pDev, prevSpriteWin, newSpriteWin)) |
| 3110 | DoEnterLeaveEvents(pDev, sourceid, prevSpriteWin, |
| 3111 | newSpriteWin, NotifyNormal); |
| 3112 | } |
| 3113 | /* set pSprite->win after ActivateEnterGrab, otherwise |
| 3114 | sprite window == grab_window and no enter/leave events are |
| 3115 | sent. */ |
| 3116 | pSprite->win = newSpriteWin; |
| 3117 | PostNewCursor(pDev); |
| 3118 | return FALSE; |
| 3119 | } |
| 3120 | return TRUE; |
| 3121 | } |
| 3122 | |
| 3123 | /** |
| 3124 | * Windows have restructured, we need to update the sprite position and the |
| 3125 | * sprite's cursor. |
| 3126 | */ |
| 3127 | void |
| 3128 | WindowsRestructured(void) |
| 3129 | { |
| 3130 | DeviceIntPtr pDev = inputInfo.devices; |
| 3131 | |
| 3132 | while (pDev) { |
| 3133 | if (IsMaster(pDev) || IsFloating(pDev)) |
| 3134 | CheckMotion(NULL, pDev); |
| 3135 | pDev = pDev->next; |
| 3136 | } |
| 3137 | } |
| 3138 | |
| 3139 | #ifdef PANORAMIX |
| 3140 | /* This was added to support reconfiguration under Xdmx. The problem is |
| 3141 | * that if the 0th screen (i.e., screenInfo.screens[0]) is moved to an origin |
| 3142 | * other than 0,0, the information in the private sprite structure must |
| 3143 | * be updated accordingly, or XYToWindow (and other routines) will not |
| 3144 | * compute correctly. */ |
| 3145 | void |
| 3146 | ReinitializeRootWindow(WindowPtr win, int xoff, int yoff) |
| 3147 | { |
| 3148 | GrabPtr grab; |
| 3149 | DeviceIntPtr pDev; |
| 3150 | SpritePtr pSprite; |
| 3151 | |
| 3152 | if (noPanoramiXExtension) |
| 3153 | return; |
| 3154 | |
| 3155 | pDev = inputInfo.devices; |
| 3156 | while (pDev) { |
| 3157 | if (DevHasCursor(pDev)) { |
| 3158 | pSprite = pDev->spriteInfo->sprite; |
| 3159 | pSprite->hot.x -= xoff; |
| 3160 | pSprite->hot.y -= yoff; |
| 3161 | |
| 3162 | pSprite->hotPhys.x -= xoff; |
| 3163 | pSprite->hotPhys.y -= yoff; |
| 3164 | |
| 3165 | pSprite->hotLimits.x1 -= xoff; |
| 3166 | pSprite->hotLimits.y1 -= yoff; |
| 3167 | pSprite->hotLimits.x2 -= xoff; |
| 3168 | pSprite->hotLimits.y2 -= yoff; |
| 3169 | |
| 3170 | if (RegionNotEmpty(&pSprite->Reg1)) |
| 3171 | RegionTranslate(&pSprite->Reg1, xoff, yoff); |
| 3172 | if (RegionNotEmpty(&pSprite->Reg2)) |
| 3173 | RegionTranslate(&pSprite->Reg2, xoff, yoff); |
| 3174 | |
| 3175 | /* FIXME: if we call ConfineCursorToWindow, must we do anything else? */ |
| 3176 | if ((grab = pDev->deviceGrab.grab) && grab->confineTo) { |
| 3177 | if (grab->confineTo->drawable.pScreen |
| 3178 | != pSprite->hotPhys.pScreen) |
| 3179 | pSprite->hotPhys.x = pSprite->hotPhys.y = 0; |
| 3180 | ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE); |
| 3181 | } |
| 3182 | else |
| 3183 | ConfineCursorToWindow(pDev, |
| 3184 | pSprite->hotPhys.pScreen->root, |
| 3185 | TRUE, FALSE); |
| 3186 | |
| 3187 | } |
| 3188 | pDev = pDev->next; |
| 3189 | } |
| 3190 | } |
| 3191 | #endif |
| 3192 | |
| 3193 | /** |
| 3194 | * Initialize a sprite for the given device and set it to some sane values. If |
| 3195 | * the device already has a sprite alloc'd, don't realloc but just reset to |
| 3196 | * default values. |
| 3197 | * If a window is supplied, the sprite will be initialized with the window's |
| 3198 | * cursor and positioned in the center of the window's screen. The root window |
| 3199 | * is a good choice to pass in here. |
| 3200 | * |
| 3201 | * It's a good idea to call it only for pointer devices, unless you have a |
| 3202 | * really talented keyboard. |
| 3203 | * |
| 3204 | * @param pDev The device to initialize. |
| 3205 | * @param pWin The window where to generate the sprite in. |
| 3206 | * |
| 3207 | */ |
| 3208 | void |
| 3209 | InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin) |
| 3210 | { |
| 3211 | SpritePtr pSprite; |
| 3212 | ScreenPtr pScreen; |
| 3213 | CursorPtr pCursor; |
| 3214 | |
| 3215 | if (!pDev->spriteInfo->sprite) { |
| 3216 | DeviceIntPtr it; |
| 3217 | |
| 3218 | pDev->spriteInfo->sprite = (SpritePtr) calloc(1, sizeof(SpriteRec)); |
| 3219 | if (!pDev->spriteInfo->sprite) |
| 3220 | FatalError("InitializeSprite: failed to allocate sprite struct"); |
| 3221 | |
| 3222 | /* We may have paired another device with this device before our |
| 3223 | * device had a actual sprite. We need to check for this and reset the |
| 3224 | * sprite field for all paired devices. |
| 3225 | * |
| 3226 | * The VCK is always paired with the VCP before the VCP has a sprite. |
| 3227 | */ |
| 3228 | for (it = inputInfo.devices; it; it = it->next) { |
| 3229 | if (it->spriteInfo->paired == pDev) |
| 3230 | it->spriteInfo->sprite = pDev->spriteInfo->sprite; |
| 3231 | } |
| 3232 | if (inputInfo.keyboard->spriteInfo->paired == pDev) |
| 3233 | inputInfo.keyboard->spriteInfo->sprite = pDev->spriteInfo->sprite; |
| 3234 | } |
| 3235 | |
| 3236 | pSprite = pDev->spriteInfo->sprite; |
| 3237 | pDev->spriteInfo->spriteOwner = TRUE; |
| 3238 | |
| 3239 | pScreen = (pWin) ? pWin->drawable.pScreen : (ScreenPtr) NULL; |
| 3240 | pSprite->hot.pScreen = pScreen; |
| 3241 | pSprite->hotPhys.pScreen = pScreen; |
| 3242 | if (pScreen) { |
| 3243 | pSprite->hotPhys.x = pScreen->width / 2; |
| 3244 | pSprite->hotPhys.y = pScreen->height / 2; |
| 3245 | pSprite->hotLimits.x2 = pScreen->width; |
| 3246 | pSprite->hotLimits.y2 = pScreen->height; |
| 3247 | } |
| 3248 | |
| 3249 | pSprite->hot = pSprite->hotPhys; |
| 3250 | pSprite->win = pWin; |
| 3251 | |
| 3252 | if (pWin) { |
| 3253 | pCursor = wCursor(pWin); |
| 3254 | pSprite->spriteTrace = (WindowPtr *) calloc(1, 32 * sizeof(WindowPtr)); |
| 3255 | if (!pSprite->spriteTrace) |
| 3256 | FatalError("Failed to allocate spriteTrace"); |
| 3257 | pSprite->spriteTraceSize = 32; |
| 3258 | |
| 3259 | RootWindow(pDev->spriteInfo->sprite) = pWin; |
| 3260 | pSprite->spriteTraceGood = 1; |
| 3261 | |
| 3262 | pSprite->pEnqueueScreen = pScreen; |
| 3263 | pSprite->pDequeueScreen = pSprite->pEnqueueScreen; |
| 3264 | |
| 3265 | } |
| 3266 | else { |
| 3267 | pCursor = NullCursor; |
| 3268 | pSprite->spriteTrace = NULL; |
| 3269 | pSprite->spriteTraceSize = 0; |
| 3270 | pSprite->spriteTraceGood = 0; |
| 3271 | pSprite->pEnqueueScreen = screenInfo.screens[0]; |
| 3272 | pSprite->pDequeueScreen = pSprite->pEnqueueScreen; |
| 3273 | } |
| 3274 | pCursor = RefCursor(pCursor); |
| 3275 | if (pSprite->current) |
| 3276 | FreeCursor(pSprite->current, None); |
| 3277 | pSprite->current = RefCursor(pCursor); |
| 3278 | |
| 3279 | if (pScreen) { |
| 3280 | (*pScreen->RealizeCursor) (pDev, pScreen, pSprite->current); |
| 3281 | (*pScreen->CursorLimits) (pDev, pScreen, pSprite->current, |
| 3282 | &pSprite->hotLimits, &pSprite->physLimits); |
| 3283 | pSprite->confined = FALSE; |
| 3284 | |
| 3285 | (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits); |
| 3286 | (*pScreen->SetCursorPosition) (pDev, pScreen, pSprite->hot.x, |
| 3287 | pSprite->hot.y, FALSE); |
| 3288 | (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current); |
| 3289 | } |
| 3290 | #ifdef PANORAMIX |
| 3291 | if (!noPanoramiXExtension) { |
| 3292 | pSprite->hotLimits.x1 = -screenInfo.screens[0]->x; |
| 3293 | pSprite->hotLimits.y1 = -screenInfo.screens[0]->y; |
| 3294 | pSprite->hotLimits.x2 = PanoramiXPixWidth - screenInfo.screens[0]->x; |
| 3295 | pSprite->hotLimits.y2 = PanoramiXPixHeight - screenInfo.screens[0]->y; |
| 3296 | pSprite->physLimits = pSprite->hotLimits; |
| 3297 | pSprite->confineWin = NullWindow; |
| 3298 | pSprite->hotShape = NullRegion; |
| 3299 | pSprite->screen = pScreen; |
| 3300 | /* gotta UNINIT these someplace */ |
| 3301 | RegionNull(&pSprite->Reg1); |
| 3302 | RegionNull(&pSprite->Reg2); |
| 3303 | } |
| 3304 | #endif |
| 3305 | } |
| 3306 | |
| 3307 | void FreeSprite(DeviceIntPtr dev) |
| 3308 | { |
| 3309 | if (DevHasCursor(dev) && dev->spriteInfo->sprite) { |
| 3310 | if (dev->spriteInfo->sprite->current) |
| 3311 | FreeCursor(dev->spriteInfo->sprite->current, None); |
| 3312 | free(dev->spriteInfo->sprite->spriteTrace); |
| 3313 | free(dev->spriteInfo->sprite); |
| 3314 | } |
| 3315 | dev->spriteInfo->sprite = NULL; |
| 3316 | } |
| 3317 | |
| 3318 | |
| 3319 | /** |
| 3320 | * Update the mouse sprite info when the server switches from a pScreen to another. |
| 3321 | * Otherwise, the pScreen of the mouse sprite is never updated when we switch |
| 3322 | * from a pScreen to another. Never updating the pScreen of the mouse sprite |
| 3323 | * implies that windows that are in pScreen whose pScreen->myNum >0 will never |
| 3324 | * get pointer events. This is because in CheckMotion(), sprite.hotPhys.pScreen |
| 3325 | * always points to the first pScreen it has been set by |
| 3326 | * DefineInitialRootWindow(). |
| 3327 | * |
| 3328 | * Calling this function is useful for use cases where the server |
| 3329 | * has more than one pScreen. |
| 3330 | * This function is similar to DefineInitialRootWindow() but it does not |
| 3331 | * reset the mouse pointer position. |
| 3332 | * @param win must be the new pScreen we are switching to. |
| 3333 | */ |
| 3334 | void |
| 3335 | UpdateSpriteForScreen(DeviceIntPtr pDev, ScreenPtr pScreen) |
| 3336 | { |
| 3337 | SpritePtr pSprite = NULL; |
| 3338 | WindowPtr win = NULL; |
| 3339 | CursorPtr pCursor; |
| 3340 | |
| 3341 | if (!pScreen) |
| 3342 | return; |
| 3343 | |
| 3344 | if (!pDev->spriteInfo->sprite) |
| 3345 | return; |
| 3346 | |
| 3347 | pSprite = pDev->spriteInfo->sprite; |
| 3348 | |
| 3349 | win = pScreen->root; |
| 3350 | |
| 3351 | pSprite->hotPhys.pScreen = pScreen; |
| 3352 | pSprite->hot = pSprite->hotPhys; |
| 3353 | pSprite->hotLimits.x2 = pScreen->width; |
| 3354 | pSprite->hotLimits.y2 = pScreen->height; |
| 3355 | pSprite->win = win; |
| 3356 | pCursor = RefCursor(wCursor(win)); |
| 3357 | if (pSprite->current) |
| 3358 | FreeCursor(pSprite->current, 0); |
| 3359 | pSprite->current = pCursor; |
| 3360 | pSprite->spriteTraceGood = 1; |
| 3361 | pSprite->spriteTrace[0] = win; |
| 3362 | (*pScreen->CursorLimits) (pDev, |
| 3363 | pScreen, |
| 3364 | pSprite->current, |
| 3365 | &pSprite->hotLimits, &pSprite->physLimits); |
| 3366 | pSprite->confined = FALSE; |
| 3367 | (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits); |
| 3368 | (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current); |
| 3369 | |
| 3370 | #ifdef PANORAMIX |
| 3371 | if (!noPanoramiXExtension) { |
| 3372 | pSprite->hotLimits.x1 = -screenInfo.screens[0]->x; |
| 3373 | pSprite->hotLimits.y1 = -screenInfo.screens[0]->y; |
| 3374 | pSprite->hotLimits.x2 = PanoramiXPixWidth - screenInfo.screens[0]->x; |
| 3375 | pSprite->hotLimits.y2 = PanoramiXPixHeight - screenInfo.screens[0]->y; |
| 3376 | pSprite->physLimits = pSprite->hotLimits; |
| 3377 | pSprite->screen = pScreen; |
| 3378 | } |
| 3379 | #endif |
| 3380 | } |
| 3381 | |
| 3382 | /* |
| 3383 | * This does not take any shortcuts, and even ignores its argument, since |
| 3384 | * it does not happen very often, and one has to walk up the tree since |
| 3385 | * this might be a newly instantiated cursor for an intermediate window |
| 3386 | * between the one the pointer is in and the one that the last cursor was |
| 3387 | * instantiated from. |
| 3388 | */ |
| 3389 | void |
| 3390 | WindowHasNewCursor(WindowPtr pWin) |
| 3391 | { |
| 3392 | DeviceIntPtr pDev; |
| 3393 | |
| 3394 | for (pDev = inputInfo.devices; pDev; pDev = pDev->next) |
| 3395 | if (DevHasCursor(pDev)) |
| 3396 | PostNewCursor(pDev); |
| 3397 | } |
| 3398 | |
| 3399 | void |
| 3400 | NewCurrentScreen(DeviceIntPtr pDev, ScreenPtr newScreen, int x, int y) |
| 3401 | { |
| 3402 | DeviceIntPtr ptr; |
| 3403 | SpritePtr pSprite; |
| 3404 | |
| 3405 | ptr = |
| 3406 | IsFloating(pDev) ? pDev : |
| 3407 | GetXTestDevice(GetMaster(pDev, MASTER_POINTER)); |
| 3408 | pSprite = ptr->spriteInfo->sprite; |
| 3409 | |
| 3410 | pSprite->hotPhys.x = x; |
| 3411 | pSprite->hotPhys.y = y; |
| 3412 | #ifdef PANORAMIX |
| 3413 | if (!noPanoramiXExtension) { |
| 3414 | pSprite->hotPhys.x += newScreen->x - screenInfo.screens[0]->x; |
| 3415 | pSprite->hotPhys.y += newScreen->y - screenInfo.screens[0]->y; |
| 3416 | if (newScreen != pSprite->screen) { |
| 3417 | pSprite->screen = newScreen; |
| 3418 | /* Make sure we tell the DDX to update its copy of the screen */ |
| 3419 | if (pSprite->confineWin) |
| 3420 | XineramaConfineCursorToWindow(ptr, pSprite->confineWin, TRUE); |
| 3421 | else |
| 3422 | XineramaConfineCursorToWindow(ptr, screenInfo.screens[0]->root, |
| 3423 | TRUE); |
| 3424 | /* if the pointer wasn't confined, the DDX won't get |
| 3425 | told of the pointer warp so we reposition it here */ |
| 3426 | if (!syncEvents.playingEvents) |
| 3427 | (*pSprite->screen->SetCursorPosition) (ptr, |
| 3428 | pSprite->screen, |
| 3429 | pSprite->hotPhys.x + |
| 3430 | screenInfo.screens[0]-> |
| 3431 | x - pSprite->screen->x, |
| 3432 | pSprite->hotPhys.y + |
| 3433 | screenInfo.screens[0]-> |
| 3434 | y - pSprite->screen->y, |
| 3435 | FALSE); |
| 3436 | } |
| 3437 | } |
| 3438 | else |
| 3439 | #endif |
| 3440 | if (newScreen != pSprite->hotPhys.pScreen) |
| 3441 | ConfineCursorToWindow(ptr, newScreen->root, TRUE, FALSE); |
| 3442 | } |
| 3443 | |
| 3444 | #ifdef PANORAMIX |
| 3445 | |
| 3446 | static Bool |
| 3447 | XineramaPointInWindowIsVisible(WindowPtr pWin, int x, int y) |
| 3448 | { |
| 3449 | BoxRec box; |
| 3450 | int i, xoff, yoff; |
| 3451 | |
| 3452 | if (!pWin->realized) |
| 3453 | return FALSE; |
| 3454 | |
| 3455 | if (RegionContainsPoint(&pWin->borderClip, x, y, &box)) |
| 3456 | return TRUE; |
| 3457 | |
| 3458 | if (!XineramaSetWindowPntrs(inputInfo.pointer, pWin)) |
| 3459 | return FALSE; |
| 3460 | |
| 3461 | xoff = x + screenInfo.screens[0]->x; |
| 3462 | yoff = y + screenInfo.screens[0]->y; |
| 3463 | |
| 3464 | FOR_NSCREENS_FORWARD_SKIP(i) { |
| 3465 | pWin = inputInfo.pointer->spriteInfo->sprite->windows[i]; |
| 3466 | |
| 3467 | x = xoff - screenInfo.screens[i]->x; |
| 3468 | y = yoff - screenInfo.screens[i]->y; |
| 3469 | |
| 3470 | if (RegionContainsPoint(&pWin->borderClip, x, y, &box) |
| 3471 | && (!wInputShape(pWin) || |
| 3472 | RegionContainsPoint(wInputShape(pWin), |
| 3473 | x - pWin->drawable.x, |
| 3474 | y - pWin->drawable.y, &box))) |
| 3475 | return TRUE; |
| 3476 | |
| 3477 | } |
| 3478 | |
| 3479 | return FALSE; |
| 3480 | } |
| 3481 | |
| 3482 | static int |
| 3483 | XineramaWarpPointer(ClientPtr client) |
| 3484 | { |
| 3485 | WindowPtr dest = NULL; |
| 3486 | int x, y, rc; |
| 3487 | SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite; |
| 3488 | |
| 3489 | REQUEST(xWarpPointerReq); |
| 3490 | |
| 3491 | if (stuff->dstWid != None) { |
| 3492 | rc = dixLookupWindow(&dest, stuff->dstWid, client, DixReadAccess); |
| 3493 | if (rc != Success) |
| 3494 | return rc; |
| 3495 | } |
| 3496 | x = pSprite->hotPhys.x; |
| 3497 | y = pSprite->hotPhys.y; |
| 3498 | |
| 3499 | if (stuff->srcWid != None) { |
| 3500 | int winX, winY; |
| 3501 | XID winID = stuff->srcWid; |
| 3502 | WindowPtr source; |
| 3503 | |
| 3504 | rc = dixLookupWindow(&source, winID, client, DixReadAccess); |
| 3505 | if (rc != Success) |
| 3506 | return rc; |
| 3507 | |
| 3508 | winX = source->drawable.x; |
| 3509 | winY = source->drawable.y; |
| 3510 | if (source == screenInfo.screens[0]->root) { |
| 3511 | winX -= screenInfo.screens[0]->x; |
| 3512 | winY -= screenInfo.screens[0]->y; |
| 3513 | } |
| 3514 | if (x < winX + stuff->srcX || |
| 3515 | y < winY + stuff->srcY || |
| 3516 | (stuff->srcWidth != 0 && |
| 3517 | winX + stuff->srcX + (int) stuff->srcWidth < x) || |
| 3518 | (stuff->srcHeight != 0 && |
| 3519 | winY + stuff->srcY + (int) stuff->srcHeight < y) || |
| 3520 | !XineramaPointInWindowIsVisible(source, x, y)) |
| 3521 | return Success; |
| 3522 | } |
| 3523 | if (dest) { |
| 3524 | x = dest->drawable.x; |
| 3525 | y = dest->drawable.y; |
| 3526 | if (dest == screenInfo.screens[0]->root) { |
| 3527 | x -= screenInfo.screens[0]->x; |
| 3528 | y -= screenInfo.screens[0]->y; |
| 3529 | } |
| 3530 | } |
| 3531 | |
| 3532 | x += stuff->dstX; |
| 3533 | y += stuff->dstY; |
| 3534 | |
| 3535 | if (x < pSprite->physLimits.x1) |
| 3536 | x = pSprite->physLimits.x1; |
| 3537 | else if (x >= pSprite->physLimits.x2) |
| 3538 | x = pSprite->physLimits.x2 - 1; |
| 3539 | if (y < pSprite->physLimits.y1) |
| 3540 | y = pSprite->physLimits.y1; |
| 3541 | else if (y >= pSprite->physLimits.y2) |
| 3542 | y = pSprite->physLimits.y2 - 1; |
| 3543 | if (pSprite->hotShape) |
| 3544 | ConfineToShape(PickPointer(client), pSprite->hotShape, &x, &y); |
| 3545 | |
| 3546 | XineramaSetCursorPosition(PickPointer(client), x, y, TRUE); |
| 3547 | |
| 3548 | return Success; |
| 3549 | } |
| 3550 | |
| 3551 | #endif |
| 3552 | |
| 3553 | /** |
| 3554 | * Server-side protocol handling for WarpPointer request. |
| 3555 | * Warps the cursor position to the coordinates given in the request. |
| 3556 | */ |
| 3557 | int |
| 3558 | ProcWarpPointer(ClientPtr client) |
| 3559 | { |
| 3560 | WindowPtr dest = NULL; |
| 3561 | int x, y, rc; |
| 3562 | ScreenPtr newScreen; |
| 3563 | DeviceIntPtr dev, tmp; |
| 3564 | SpritePtr pSprite; |
| 3565 | |
| 3566 | REQUEST(xWarpPointerReq); |
| 3567 | REQUEST_SIZE_MATCH(xWarpPointerReq); |
| 3568 | |
| 3569 | dev = PickPointer(client); |
| 3570 | |
| 3571 | for (tmp = inputInfo.devices; tmp; tmp = tmp->next) { |
| 3572 | if (GetMaster(tmp, MASTER_ATTACHED) == dev) { |
| 3573 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixWriteAccess); |
| 3574 | if (rc != Success) |
| 3575 | return rc; |
| 3576 | } |
| 3577 | } |
| 3578 | |
| 3579 | if (dev->lastSlave) |
| 3580 | dev = dev->lastSlave; |
| 3581 | pSprite = dev->spriteInfo->sprite; |
| 3582 | |
| 3583 | #ifdef PANORAMIX |
| 3584 | if (!noPanoramiXExtension) |
| 3585 | return XineramaWarpPointer(client); |
| 3586 | #endif |
| 3587 | |
| 3588 | if (stuff->dstWid != None) { |
| 3589 | rc = dixLookupWindow(&dest, stuff->dstWid, client, DixGetAttrAccess); |
| 3590 | if (rc != Success) |
| 3591 | return rc; |
| 3592 | } |
| 3593 | x = pSprite->hotPhys.x; |
| 3594 | y = pSprite->hotPhys.y; |
| 3595 | |
| 3596 | if (stuff->srcWid != None) { |
| 3597 | int winX, winY; |
| 3598 | XID winID = stuff->srcWid; |
| 3599 | WindowPtr source; |
| 3600 | |
| 3601 | rc = dixLookupWindow(&source, winID, client, DixGetAttrAccess); |
| 3602 | if (rc != Success) |
| 3603 | return rc; |
| 3604 | |
| 3605 | winX = source->drawable.x; |
| 3606 | winY = source->drawable.y; |
| 3607 | if (source->drawable.pScreen != pSprite->hotPhys.pScreen || |
| 3608 | x < winX + stuff->srcX || |
| 3609 | y < winY + stuff->srcY || |
| 3610 | (stuff->srcWidth != 0 && |
| 3611 | winX + stuff->srcX + (int) stuff->srcWidth < x) || |
| 3612 | (stuff->srcHeight != 0 && |
| 3613 | winY + stuff->srcY + (int) stuff->srcHeight < y) || |
| 3614 | !PointInWindowIsVisible(source, x, y)) |
| 3615 | return Success; |
| 3616 | } |
| 3617 | if (dest) { |
| 3618 | x = dest->drawable.x; |
| 3619 | y = dest->drawable.y; |
| 3620 | newScreen = dest->drawable.pScreen; |
| 3621 | } |
| 3622 | else |
| 3623 | newScreen = pSprite->hotPhys.pScreen; |
| 3624 | |
| 3625 | x += stuff->dstX; |
| 3626 | y += stuff->dstY; |
| 3627 | |
| 3628 | if (x < 0) |
| 3629 | x = 0; |
| 3630 | else if (x >= newScreen->width) |
| 3631 | x = newScreen->width - 1; |
| 3632 | if (y < 0) |
| 3633 | y = 0; |
| 3634 | else if (y >= newScreen->height) |
| 3635 | y = newScreen->height - 1; |
| 3636 | |
| 3637 | if (newScreen == pSprite->hotPhys.pScreen) { |
| 3638 | if (x < pSprite->physLimits.x1) |
| 3639 | x = pSprite->physLimits.x1; |
| 3640 | else if (x >= pSprite->physLimits.x2) |
| 3641 | x = pSprite->physLimits.x2 - 1; |
| 3642 | if (y < pSprite->physLimits.y1) |
| 3643 | y = pSprite->physLimits.y1; |
| 3644 | else if (y >= pSprite->physLimits.y2) |
| 3645 | y = pSprite->physLimits.y2 - 1; |
| 3646 | if (pSprite->hotShape) |
| 3647 | ConfineToShape(dev, pSprite->hotShape, &x, &y); |
| 3648 | (*newScreen->SetCursorPosition) (dev, newScreen, x, y, TRUE); |
| 3649 | } |
| 3650 | else if (!PointerConfinedToScreen(dev)) { |
| 3651 | NewCurrentScreen(dev, newScreen, x, y); |
| 3652 | } |
| 3653 | return Success; |
| 3654 | } |
| 3655 | |
| 3656 | static Bool |
| 3657 | BorderSizeNotEmpty(DeviceIntPtr pDev, WindowPtr pWin) |
| 3658 | { |
| 3659 | if (RegionNotEmpty(&pWin->borderSize)) |
| 3660 | return TRUE; |
| 3661 | |
| 3662 | #ifdef PANORAMIX |
| 3663 | if (!noPanoramiXExtension && XineramaSetWindowPntrs(pDev, pWin)) { |
| 3664 | int i; |
| 3665 | |
| 3666 | FOR_NSCREENS_FORWARD_SKIP(i) { |
| 3667 | if (RegionNotEmpty |
| 3668 | (&pDev->spriteInfo->sprite->windows[i]->borderSize)) |
| 3669 | return TRUE; |
| 3670 | } |
| 3671 | } |
| 3672 | #endif |
| 3673 | return FALSE; |
| 3674 | } |
| 3675 | |
| 3676 | /** |
| 3677 | * Activate the given passive grab. If the grab is activated successfully, the |
| 3678 | * event has been delivered to the client. |
| 3679 | * |
| 3680 | * @param device The device of the event to check. |
| 3681 | * @param grab The grab to check. |
| 3682 | * @param event The current device event. |
| 3683 | * @param real_event The original event, in case of touch emulation. The |
| 3684 | * real event is the one stored in the sync queue. |
| 3685 | * |
| 3686 | * @return Whether the grab has been activated. |
| 3687 | */ |
| 3688 | Bool |
| 3689 | ActivatePassiveGrab(DeviceIntPtr device, GrabPtr grab, InternalEvent *event, |
| 3690 | InternalEvent *real_event) |
| 3691 | { |
| 3692 | SpritePtr pSprite = device->spriteInfo->sprite; |
| 3693 | GrabInfoPtr grabinfo = &device->deviceGrab; |
| 3694 | xEvent *xE = NULL; |
| 3695 | int count; |
| 3696 | int rc; |
| 3697 | |
| 3698 | /* The only consumers of corestate are Xi 1.x and core events, which |
| 3699 | * are guaranteed to come from DeviceEvents. */ |
| 3700 | if (grab->grabtype == XI || grab->grabtype == CORE) { |
| 3701 | DeviceIntPtr gdev; |
| 3702 | |
| 3703 | event->device_event.corestate &= 0x1f00; |
| 3704 | |
| 3705 | if (grab->grabtype == CORE) |
| 3706 | gdev = GetMaster(device, KEYBOARD_OR_FLOAT); |
| 3707 | else |
| 3708 | gdev = grab->modifierDevice; |
| 3709 | |
| 3710 | if (gdev && gdev->key && gdev->key->xkbInfo) |
| 3711 | event->device_event.corestate |= |
| 3712 | gdev->key->xkbInfo->state.grab_mods & (~0x1f00); |
| 3713 | } |
| 3714 | |
| 3715 | if (grab->grabtype == CORE) { |
| 3716 | rc = EventToCore(event, &xE, &count); |
| 3717 | if (rc != Success) { |
| 3718 | BUG_WARN_MSG(rc != BadMatch, "[dix] %s: core conversion failed" |
| 3719 | "(%d, %d).\n", device->name, event->any.type, rc); |
| 3720 | return FALSE; |
| 3721 | } |
| 3722 | } |
| 3723 | else if (grab->grabtype == XI2) { |
| 3724 | rc = EventToXI2(event, &xE); |
| 3725 | if (rc != Success) { |
| 3726 | if (rc != BadMatch) |
| 3727 | BUG_WARN_MSG(rc != BadMatch, "[dix] %s: XI2 conversion failed" |
| 3728 | "(%d, %d).\n", device->name, event->any.type, rc); |
| 3729 | return FALSE; |
| 3730 | } |
| 3731 | count = 1; |
| 3732 | } |
| 3733 | else { |
| 3734 | rc = EventToXI(event, &xE, &count); |
| 3735 | if (rc != Success) { |
| 3736 | if (rc != BadMatch) |
| 3737 | BUG_WARN_MSG(rc != BadMatch, "[dix] %s: XI conversion failed" |
| 3738 | "(%d, %d).\n", device->name, event->any.type, rc); |
| 3739 | return FALSE; |
| 3740 | } |
| 3741 | } |
| 3742 | |
| 3743 | (*grabinfo->ActivateGrab) (device, grab, |
| 3744 | ClientTimeToServerTime(event->any.time), TRUE); |
| 3745 | |
| 3746 | if (xE) { |
| 3747 | FixUpEventFromWindow(pSprite, xE, grab->window, None, TRUE); |
| 3748 | |
| 3749 | /* XXX: XACE? */ |
| 3750 | TryClientEvents(rClient(grab), device, xE, count, |
| 3751 | GetEventFilter(device, xE), |
| 3752 | GetEventFilter(device, xE), grab); |
| 3753 | } |
| 3754 | |
| 3755 | if (grabinfo->sync.state == FROZEN_NO_EVENT) |
| 3756 | grabinfo->sync.state = FROZEN_WITH_EVENT; |
| 3757 | *grabinfo->sync.event = real_event->device_event; |
| 3758 | |
| 3759 | free(xE); |
| 3760 | return TRUE; |
| 3761 | } |
| 3762 | |
| 3763 | static BOOL |
| 3764 | CoreGrabInterferes(DeviceIntPtr device, GrabPtr grab) |
| 3765 | { |
| 3766 | DeviceIntPtr other; |
| 3767 | BOOL interfering = FALSE; |
| 3768 | |
| 3769 | for (other = inputInfo.devices; other; other = other->next) { |
| 3770 | GrabPtr othergrab = other->deviceGrab.grab; |
| 3771 | |
| 3772 | if (othergrab && othergrab->grabtype == CORE && |
| 3773 | SameClient(grab, rClient(othergrab)) && |
| 3774 | ((IsPointerDevice(grab->device) && |
| 3775 | IsPointerDevice(othergrab->device)) || |
| 3776 | (IsKeyboardDevice(grab->device) && |
| 3777 | IsKeyboardDevice(othergrab->device)))) { |
| 3778 | interfering = TRUE; |
| 3779 | break; |
| 3780 | } |
| 3781 | } |
| 3782 | |
| 3783 | return interfering; |
| 3784 | } |
| 3785 | |
| 3786 | enum MatchFlags { |
| 3787 | NO_MATCH = 0x0, |
| 3788 | CORE_MATCH = 0x1, |
| 3789 | XI_MATCH = 0x2, |
| 3790 | XI2_MATCH = 0x4, |
| 3791 | }; |
| 3792 | |
| 3793 | /** |
| 3794 | * Match the grab against the temporary grab on the given input level. |
| 3795 | * Modifies the temporary grab pointer. |
| 3796 | * |
| 3797 | * @param grab The grab to match against |
| 3798 | * @param tmp The temporary grab to use for matching |
| 3799 | * @param level The input level we want to match on |
| 3800 | * @param event_type Wire protocol event type |
| 3801 | * |
| 3802 | * @return The respective matched flag or 0 for no match |
| 3803 | */ |
| 3804 | static enum MatchFlags |
| 3805 | MatchForType(const GrabPtr grab, GrabPtr tmp, enum InputLevel level, |
| 3806 | int event_type) |
| 3807 | { |
| 3808 | enum MatchFlags match; |
| 3809 | BOOL ignore_device = FALSE; |
| 3810 | int grabtype; |
| 3811 | int evtype; |
| 3812 | |
| 3813 | switch (level) { |
| 3814 | case XI2: |
| 3815 | grabtype = XI2; |
| 3816 | evtype = GetXI2Type(event_type); |
| 3817 | BUG_WARN(!evtype); |
| 3818 | match = XI2_MATCH; |
| 3819 | break; |
| 3820 | case XI: |
| 3821 | grabtype = XI; |
| 3822 | evtype = GetXIType(event_type); |
| 3823 | match = XI_MATCH; |
| 3824 | break; |
| 3825 | case CORE: |
| 3826 | grabtype = CORE; |
| 3827 | evtype = GetCoreType(event_type); |
| 3828 | match = CORE_MATCH; |
| 3829 | ignore_device = TRUE; |
| 3830 | break; |
| 3831 | } |
| 3832 | |
| 3833 | tmp->grabtype = grabtype; |
| 3834 | tmp->type = evtype; |
| 3835 | |
| 3836 | if (tmp->type && GrabMatchesSecond(tmp, grab, ignore_device)) |
| 3837 | return match; |
| 3838 | |
| 3839 | return NO_MATCH; |
| 3840 | } |
| 3841 | |
| 3842 | /** |
| 3843 | * Check an individual grab against an event to determine if a passive grab |
| 3844 | * should be activated. |
| 3845 | * |
| 3846 | * @param device The device of the event to check. |
| 3847 | * @param grab The grab to check. |
| 3848 | * @param event The current device event. |
| 3849 | * @param checkCore Check for core grabs too. |
| 3850 | * @param tempGrab A pre-allocated temporary grab record for matching. This |
| 3851 | * must have the window and device values filled in. |
| 3852 | * |
| 3853 | * @return Whether the grab matches the event. |
| 3854 | */ |
| 3855 | static Bool |
| 3856 | CheckPassiveGrab(DeviceIntPtr device, GrabPtr grab, InternalEvent *event, |
| 3857 | Bool checkCore, GrabPtr tempGrab) |
| 3858 | { |
| 3859 | DeviceIntPtr gdev; |
| 3860 | XkbSrvInfoPtr xkbi = NULL; |
| 3861 | enum MatchFlags match = 0; |
| 3862 | int emulated_type = 0; |
| 3863 | |
| 3864 | gdev = grab->modifierDevice; |
| 3865 | if (grab->grabtype == CORE) { |
| 3866 | gdev = GetMaster(device, KEYBOARD_OR_FLOAT); |
| 3867 | } |
| 3868 | else if (grab->grabtype == XI2) { |
| 3869 | /* if the device is an attached slave device, gdev must be the |
| 3870 | * attached master keyboard. Since the slave may have been |
| 3871 | * reattached after the grab, the modifier device may not be the |
| 3872 | * same. */ |
| 3873 | if (!IsMaster(grab->device) && !IsFloating(device)) |
| 3874 | gdev = GetMaster(device, MASTER_KEYBOARD); |
| 3875 | } |
| 3876 | |
| 3877 | if (gdev && gdev->key) |
| 3878 | xkbi = gdev->key->xkbInfo; |
| 3879 | tempGrab->modifierDevice = grab->modifierDevice; |
| 3880 | tempGrab->modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0; |
| 3881 | |
| 3882 | /* Check for XI2 and XI grabs first */ |
| 3883 | match = MatchForType(grab, tempGrab, XI2, event->any.type); |
| 3884 | |
| 3885 | if (!match && IsTouchEvent(event) && |
| 3886 | (event->device_event.flags & TOUCH_POINTER_EMULATED)) { |
| 3887 | emulated_type = TouchGetPointerEventType(event); |
| 3888 | match = MatchForType(grab, tempGrab, XI2, emulated_type); |
| 3889 | } |
| 3890 | |
| 3891 | if (!match) |
| 3892 | match = MatchForType(grab, tempGrab, XI, event->any.type); |
| 3893 | |
| 3894 | if (!match && emulated_type) |
| 3895 | match = MatchForType(grab, tempGrab, XI, emulated_type); |
| 3896 | |
| 3897 | if (!match && checkCore) { |
| 3898 | match = MatchForType(grab, tempGrab, CORE, event->any.type); |
| 3899 | if (!match && emulated_type) |
| 3900 | match = MatchForType(grab, tempGrab, CORE, emulated_type); |
| 3901 | } |
| 3902 | |
| 3903 | if (!match || (grab->confineTo && |
| 3904 | (!grab->confineTo->realized || |
| 3905 | !BorderSizeNotEmpty(device, grab->confineTo)))) |
| 3906 | return FALSE; |
| 3907 | |
| 3908 | /* In some cases a passive core grab may exist, but the client |
| 3909 | * already has a core grab on some other device. In this case we |
| 3910 | * must not get the grab, otherwise we may never ungrab the |
| 3911 | * device. |
| 3912 | */ |
| 3913 | |
| 3914 | if (grab->grabtype == CORE) { |
| 3915 | /* A passive grab may have been created for a different device |
| 3916 | than it is assigned to at this point in time. |
| 3917 | Update the grab's device and modifier device to reflect the |
| 3918 | current state. |
| 3919 | Since XGrabDeviceButton requires to specify the |
| 3920 | modifierDevice explicitly, we don't override this choice. |
| 3921 | */ |
| 3922 | if (grab->type < GenericEvent) { |
| 3923 | grab->device = device; |
| 3924 | grab->modifierDevice = GetMaster(device, MASTER_KEYBOARD); |
| 3925 | } |
| 3926 | |
| 3927 | if (CoreGrabInterferes(device, grab)) |
| 3928 | return FALSE; |
| 3929 | } |
| 3930 | |
| 3931 | return TRUE; |
| 3932 | } |
| 3933 | |
| 3934 | /** |
| 3935 | * "CheckPassiveGrabsOnWindow" checks to see if the event passed in causes a |
| 3936 | * passive grab set on the window to be activated. |
| 3937 | * If activate is true and a passive grab is found, it will be activated, |
| 3938 | * and the event will be delivered to the client. |
| 3939 | * |
| 3940 | * @param pWin The window that may be subject to a passive grab. |
| 3941 | * @param device Device that caused the event. |
| 3942 | * @param event The current device event. |
| 3943 | * @param checkCore Check for core grabs too. |
| 3944 | * @param activate If a grab is found, activate it and deliver the event. |
| 3945 | */ |
| 3946 | |
| 3947 | GrabPtr |
| 3948 | CheckPassiveGrabsOnWindow(WindowPtr pWin, |
| 3949 | DeviceIntPtr device, |
| 3950 | InternalEvent *event, BOOL checkCore, BOOL activate) |
| 3951 | { |
| 3952 | GrabPtr grab = wPassiveGrabs(pWin); |
| 3953 | GrabPtr tempGrab; |
| 3954 | |
| 3955 | if (!grab) |
| 3956 | return NULL; |
| 3957 | |
| 3958 | tempGrab = AllocGrab(NULL); |
| 3959 | |
| 3960 | /* Fill out the grab details, but leave the type for later before |
| 3961 | * comparing */ |
| 3962 | switch (event->any.type) { |
| 3963 | case ET_KeyPress: |
| 3964 | case ET_KeyRelease: |
| 3965 | tempGrab->detail.exact = event->device_event.detail.key; |
| 3966 | break; |
| 3967 | case ET_ButtonPress: |
| 3968 | case ET_ButtonRelease: |
| 3969 | case ET_TouchBegin: |
| 3970 | case ET_TouchEnd: |
| 3971 | tempGrab->detail.exact = event->device_event.detail.button; |
| 3972 | break; |
| 3973 | default: |
| 3974 | tempGrab->detail.exact = 0; |
| 3975 | break; |
| 3976 | } |
| 3977 | tempGrab->window = pWin; |
| 3978 | tempGrab->device = device; |
| 3979 | tempGrab->detail.pMask = NULL; |
| 3980 | tempGrab->modifiersDetail.pMask = NULL; |
| 3981 | tempGrab->next = NULL; |
| 3982 | |
| 3983 | for (; grab; grab = grab->next) { |
| 3984 | if (!CheckPassiveGrab(device, grab, event, checkCore, tempGrab)) |
| 3985 | continue; |
| 3986 | |
| 3987 | if (activate && !ActivatePassiveGrab(device, grab, event, event)) |
| 3988 | continue; |
| 3989 | |
| 3990 | break; |
| 3991 | } |
| 3992 | |
| 3993 | FreeGrab(tempGrab); |
| 3994 | return grab; |
| 3995 | } |
| 3996 | |
| 3997 | /** |
| 3998 | * CheckDeviceGrabs handles both keyboard and pointer events that may cause |
| 3999 | * a passive grab to be activated. |
| 4000 | * |
| 4001 | * If the event is a keyboard event, the ancestors of the focus window are |
| 4002 | * traced down and tried to see if they have any passive grabs to be |
| 4003 | * activated. If the focus window itself is reached and it's descendants |
| 4004 | * contain the pointer, the ancestors of the window that the pointer is in |
| 4005 | * are then traced down starting at the focus window, otherwise no grabs are |
| 4006 | * activated. |
| 4007 | * If the event is a pointer event, the ancestors of the window that the |
| 4008 | * pointer is in are traced down starting at the root until CheckPassiveGrabs |
| 4009 | * causes a passive grab to activate or all the windows are |
| 4010 | * tried. PRH |
| 4011 | * |
| 4012 | * If a grab is activated, the event has been sent to the client already! |
| 4013 | * |
| 4014 | * The event we pass in must always be an XI event. From this, we then emulate |
| 4015 | * the core event and then check for grabs. |
| 4016 | * |
| 4017 | * @param device The device that caused the event. |
| 4018 | * @param xE The event to handle (Device{Button|Key}Press). |
| 4019 | * @param count Number of events in list. |
| 4020 | * @return TRUE if a grab has been activated or false otherwise. |
| 4021 | */ |
| 4022 | |
| 4023 | Bool |
| 4024 | CheckDeviceGrabs(DeviceIntPtr device, DeviceEvent *event, WindowPtr ancestor) |
| 4025 | { |
| 4026 | int i; |
| 4027 | WindowPtr pWin = NULL; |
| 4028 | FocusClassPtr focus = |
| 4029 | IsPointerEvent((InternalEvent *) event) ? NULL : device->focus; |
| 4030 | BOOL sendCore = (IsMaster(device) && device->coreEvents); |
| 4031 | Bool ret = FALSE; |
| 4032 | |
| 4033 | if (event->type != ET_ButtonPress && event->type != ET_KeyPress) |
| 4034 | return FALSE; |
| 4035 | |
| 4036 | if (event->type == ET_ButtonPress && (device->button->buttonsDown != 1)) |
| 4037 | return FALSE; |
| 4038 | |
| 4039 | if (device->deviceGrab.grab) |
| 4040 | return FALSE; |
| 4041 | |
| 4042 | i = 0; |
| 4043 | if (ancestor) { |
| 4044 | while (i < device->spriteInfo->sprite->spriteTraceGood) |
| 4045 | if (device->spriteInfo->sprite->spriteTrace[i++] == ancestor) |
| 4046 | break; |
| 4047 | if (i == device->spriteInfo->sprite->spriteTraceGood) |
| 4048 | goto out; |
| 4049 | } |
| 4050 | |
| 4051 | if (focus) { |
| 4052 | for (; i < focus->traceGood; i++) { |
| 4053 | pWin = focus->trace[i]; |
| 4054 | if (CheckPassiveGrabsOnWindow(pWin, device, (InternalEvent *) event, |
| 4055 | sendCore, TRUE)) { |
| 4056 | ret = TRUE; |
| 4057 | goto out; |
| 4058 | } |
| 4059 | } |
| 4060 | |
| 4061 | if ((focus->win == NoneWin) || |
| 4062 | (i >= device->spriteInfo->sprite->spriteTraceGood) || |
| 4063 | (pWin && pWin != device->spriteInfo->sprite->spriteTrace[i - 1])) |
| 4064 | goto out; |
| 4065 | } |
| 4066 | |
| 4067 | for (; i < device->spriteInfo->sprite->spriteTraceGood; i++) { |
| 4068 | pWin = device->spriteInfo->sprite->spriteTrace[i]; |
| 4069 | if (CheckPassiveGrabsOnWindow(pWin, device, (InternalEvent *) event, |
| 4070 | sendCore, TRUE)) { |
| 4071 | ret = TRUE; |
| 4072 | goto out; |
| 4073 | } |
| 4074 | } |
| 4075 | |
| 4076 | out: |
| 4077 | if (ret == TRUE && event->type == ET_KeyPress) |
| 4078 | device->deviceGrab.activatingKey = event->detail.key; |
| 4079 | return ret; |
| 4080 | } |
| 4081 | |
| 4082 | /** |
| 4083 | * Called for keyboard events to deliver event to whatever client owns the |
| 4084 | * focus. |
| 4085 | * |
| 4086 | * The event is delivered to the keyboard's focus window, the root window or |
| 4087 | * to the window owning the input focus. |
| 4088 | * |
| 4089 | * @param keybd The keyboard originating the event. |
| 4090 | * @param event The event, not yet in wire format. |
| 4091 | * @param window Window underneath the sprite. |
| 4092 | */ |
| 4093 | void |
| 4094 | DeliverFocusedEvent(DeviceIntPtr keybd, InternalEvent *event, WindowPtr window) |
| 4095 | { |
| 4096 | DeviceIntPtr ptr; |
| 4097 | WindowPtr focus = keybd->focus->win; |
| 4098 | BOOL sendCore = (IsMaster(keybd) && keybd->coreEvents); |
| 4099 | xEvent *core = NULL, *xE = NULL, *xi2 = NULL; |
| 4100 | int count, rc; |
| 4101 | int deliveries = 0; |
| 4102 | |
| 4103 | if (focus == FollowKeyboardWin) |
| 4104 | focus = inputInfo.keyboard->focus->win; |
| 4105 | if (!focus) |
| 4106 | return; |
| 4107 | if (focus == PointerRootWin) { |
| 4108 | DeliverDeviceEvents(window, event, NullGrab, NullWindow, keybd); |
| 4109 | return; |
| 4110 | } |
| 4111 | if ((focus == window) || IsParent(focus, window)) { |
| 4112 | if (DeliverDeviceEvents(window, event, NullGrab, focus, keybd)) |
| 4113 | return; |
| 4114 | } |
| 4115 | |
| 4116 | /* just deliver it to the focus window */ |
| 4117 | ptr = GetMaster(keybd, POINTER_OR_FLOAT); |
| 4118 | |
| 4119 | rc = EventToXI2(event, &xi2); |
| 4120 | if (rc == Success) { |
| 4121 | /* XXX: XACE */ |
| 4122 | int filter = GetEventFilter(keybd, xi2); |
| 4123 | |
| 4124 | FixUpEventFromWindow(ptr->spriteInfo->sprite, xi2, focus, None, FALSE); |
| 4125 | deliveries = DeliverEventsToWindow(keybd, focus, xi2, 1, |
| 4126 | filter, NullGrab); |
| 4127 | if (deliveries > 0) |
| 4128 | goto unwind; |
| 4129 | } |
| 4130 | else if (rc != BadMatch) |
| 4131 | ErrorF |
| 4132 | ("[dix] %s: XI2 conversion failed in DFE (%d, %d). Skipping delivery.\n", |
| 4133 | keybd->name, event->any.type, rc); |
| 4134 | |
| 4135 | rc = EventToXI(event, &xE, &count); |
| 4136 | if (rc == Success && |
| 4137 | XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, xE, count) == Success) { |
| 4138 | FixUpEventFromWindow(ptr->spriteInfo->sprite, xE, focus, None, FALSE); |
| 4139 | deliveries = DeliverEventsToWindow(keybd, focus, xE, count, |
| 4140 | GetEventFilter(keybd, xE), NullGrab); |
| 4141 | |
| 4142 | if (deliveries > 0) |
| 4143 | goto unwind; |
| 4144 | } |
| 4145 | else if (rc != BadMatch) |
| 4146 | ErrorF |
| 4147 | ("[dix] %s: XI conversion failed in DFE (%d, %d). Skipping delivery.\n", |
| 4148 | keybd->name, event->any.type, rc); |
| 4149 | |
| 4150 | if (sendCore) { |
| 4151 | rc = EventToCore(event, &core, &count); |
| 4152 | if (rc == Success) { |
| 4153 | if (XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, core, count) == |
| 4154 | Success) { |
| 4155 | FixUpEventFromWindow(keybd->spriteInfo->sprite, core, focus, |
| 4156 | None, FALSE); |
| 4157 | deliveries = |
| 4158 | DeliverEventsToWindow(keybd, focus, core, count, |
| 4159 | GetEventFilter(keybd, core), |
| 4160 | NullGrab); |
| 4161 | } |
| 4162 | } |
| 4163 | else if (rc != BadMatch) |
| 4164 | ErrorF |
| 4165 | ("[dix] %s: core conversion failed DFE (%d, %d). Skipping delivery.\n", |
| 4166 | keybd->name, event->any.type, rc); |
| 4167 | } |
| 4168 | |
| 4169 | unwind: |
| 4170 | free(core); |
| 4171 | free(xE); |
| 4172 | free(xi2); |
| 4173 | return; |
| 4174 | } |
| 4175 | |
| 4176 | int |
| 4177 | DeliverOneGrabbedEvent(InternalEvent *event, DeviceIntPtr dev, |
| 4178 | enum InputLevel level) |
| 4179 | { |
| 4180 | SpritePtr pSprite = dev->spriteInfo->sprite; |
| 4181 | int rc; |
| 4182 | xEvent *xE = NULL; |
| 4183 | int count = 0; |
| 4184 | int deliveries = 0; |
| 4185 | Mask mask; |
| 4186 | GrabInfoPtr grabinfo = &dev->deviceGrab; |
| 4187 | GrabPtr grab = grabinfo->grab; |
| 4188 | Mask filter; |
| 4189 | |
| 4190 | if (grab->grabtype != level) |
| 4191 | return 0; |
| 4192 | |
| 4193 | switch (level) { |
| 4194 | case XI2: |
| 4195 | rc = EventToXI2(event, &xE); |
| 4196 | count = 1; |
| 4197 | if (rc == Success) { |
| 4198 | int evtype = xi2_get_type(xE); |
| 4199 | |
| 4200 | mask = GetXI2MaskByte(grab->xi2mask, dev, evtype); |
| 4201 | filter = GetEventFilter(dev, xE); |
| 4202 | } |
| 4203 | break; |
| 4204 | case XI: |
| 4205 | if (grabinfo->fromPassiveGrab && grabinfo->implicitGrab) |
| 4206 | mask = grab->deviceMask; |
| 4207 | else |
| 4208 | mask = grab->eventMask; |
| 4209 | rc = EventToXI(event, &xE, &count); |
| 4210 | if (rc == Success) |
| 4211 | filter = GetEventFilter(dev, xE); |
| 4212 | break; |
| 4213 | case CORE: |
| 4214 | rc = EventToCore(event, &xE, &count); |
| 4215 | mask = grab->eventMask; |
| 4216 | if (rc == Success) |
| 4217 | filter = GetEventFilter(dev, xE); |
| 4218 | break; |
| 4219 | default: |
| 4220 | BUG_WARN_MSG(1, "Invalid input level %d\n", level); |
| 4221 | return 0; |
| 4222 | } |
| 4223 | |
| 4224 | if (rc == Success) { |
| 4225 | FixUpEventFromWindow(pSprite, xE, grab->window, None, TRUE); |
| 4226 | if (XaceHook(XACE_SEND_ACCESS, 0, dev, |
| 4227 | grab->window, xE, count) || |
| 4228 | XaceHook(XACE_RECEIVE_ACCESS, rClient(grab), |
| 4229 | grab->window, xE, count)) |
| 4230 | deliveries = 1; /* don't send, but pretend we did */ |
| 4231 | else if (level != CORE || !IsInterferingGrab(rClient(grab), dev, xE)) { |
| 4232 | deliveries = TryClientEvents(rClient(grab), dev, |
| 4233 | xE, count, mask, filter, grab); |
| 4234 | } |
| 4235 | } |
| 4236 | else |
| 4237 | BUG_WARN_MSG(rc != BadMatch, |
| 4238 | "%s: conversion to mode %d failed on %d with %d\n", |
| 4239 | dev->name, level, event->any.type, rc); |
| 4240 | |
| 4241 | free(xE); |
| 4242 | return deliveries; |
| 4243 | } |
| 4244 | |
| 4245 | /** |
| 4246 | * Deliver an event from a device that is currently grabbed. Uses |
| 4247 | * DeliverDeviceEvents() for further delivery if a ownerEvents is set on the |
| 4248 | * grab. If not, TryClientEvents() is used. |
| 4249 | * |
| 4250 | * @param deactivateGrab True if the device's grab should be deactivated. |
| 4251 | * |
| 4252 | * @return The number of events delivered. |
| 4253 | */ |
| 4254 | int |
| 4255 | DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev, |
| 4256 | Bool deactivateGrab) |
| 4257 | { |
| 4258 | GrabPtr grab; |
| 4259 | GrabInfoPtr grabinfo; |
| 4260 | int deliveries = 0; |
| 4261 | DeviceIntPtr dev; |
| 4262 | SpritePtr pSprite = thisDev->spriteInfo->sprite; |
| 4263 | BOOL sendCore = FALSE; |
| 4264 | |
| 4265 | grabinfo = &thisDev->deviceGrab; |
| 4266 | grab = grabinfo->grab; |
| 4267 | |
| 4268 | if (grab->ownerEvents) { |
| 4269 | WindowPtr focus; |
| 4270 | |
| 4271 | /* Hack: Some pointer device have a focus class. So we need to check |
| 4272 | * for the type of event, to see if we really want to deliver it to |
| 4273 | * the focus window. For pointer events, the answer is no. |
| 4274 | */ |
| 4275 | if (IsPointerEvent(event)) |
| 4276 | focus = PointerRootWin; |
| 4277 | else if (thisDev->focus) { |
| 4278 | focus = thisDev->focus->win; |
| 4279 | if (focus == FollowKeyboardWin) |
| 4280 | focus = inputInfo.keyboard->focus->win; |
| 4281 | } |
| 4282 | else |
| 4283 | focus = PointerRootWin; |
| 4284 | if (focus == PointerRootWin) |
| 4285 | deliveries = DeliverDeviceEvents(pSprite->win, event, grab, |
| 4286 | NullWindow, thisDev); |
| 4287 | else if (focus && (focus == pSprite->win || |
| 4288 | IsParent(focus, pSprite->win))) |
| 4289 | deliveries = DeliverDeviceEvents(pSprite->win, event, grab, focus, |
| 4290 | thisDev); |
| 4291 | else if (focus) |
| 4292 | deliveries = DeliverDeviceEvents(focus, event, grab, focus, |
| 4293 | thisDev); |
| 4294 | } |
| 4295 | if (!deliveries) { |
| 4296 | /* XXX: In theory, we could pass the internal events through to |
| 4297 | * everything and only convert just before hitting the wire. We can't |
| 4298 | * do that yet, so DGE is the last stop for internal events. From here |
| 4299 | * onwards, we deal with core/XI events. |
| 4300 | */ |
| 4301 | |
| 4302 | sendCore = (IsMaster(thisDev) && thisDev->coreEvents); |
| 4303 | /* try core event */ |
| 4304 | if ((sendCore && grab->grabtype == CORE) || grab->grabtype != CORE) |
| 4305 | deliveries = DeliverOneGrabbedEvent(event, thisDev, grab->grabtype); |
| 4306 | |
| 4307 | if (deliveries && (event->any.type == ET_Motion)) |
| 4308 | thisDev->valuator->motionHintWindow = grab->window; |
| 4309 | } |
| 4310 | if (deliveries && !deactivateGrab && |
| 4311 | (event->any.type == ET_KeyPress || |
| 4312 | event->any.type == ET_KeyRelease || |
| 4313 | event->any.type == ET_ButtonPress || |
| 4314 | event->any.type == ET_ButtonRelease)) { |
| 4315 | switch (grabinfo->sync.state) { |
| 4316 | case FREEZE_BOTH_NEXT_EVENT: |
| 4317 | dev = GetPairedDevice(thisDev); |
| 4318 | if (dev) { |
| 4319 | FreezeThaw(dev, TRUE); |
| 4320 | if ((dev->deviceGrab.sync.state == FREEZE_BOTH_NEXT_EVENT) && |
| 4321 | (CLIENT_BITS(grab->resource) == |
| 4322 | CLIENT_BITS(dev->deviceGrab.grab->resource))) |
| 4323 | dev->deviceGrab.sync.state = FROZEN_NO_EVENT; |
| 4324 | else |
| 4325 | dev->deviceGrab.sync.other = grab; |
| 4326 | } |
| 4327 | /* fall through */ |
| 4328 | case FREEZE_NEXT_EVENT: |
| 4329 | grabinfo->sync.state = FROZEN_WITH_EVENT; |
| 4330 | FreezeThaw(thisDev, TRUE); |
| 4331 | *grabinfo->sync.event = event->device_event; |
| 4332 | break; |
| 4333 | } |
| 4334 | } |
| 4335 | |
| 4336 | return deliveries; |
| 4337 | } |
| 4338 | |
| 4339 | /* This function is used to set the key pressed or key released state - |
| 4340 | this is only used when the pressing of keys does not cause |
| 4341 | the device's processInputProc to be called, as in for example Mouse Keys. |
| 4342 | */ |
| 4343 | void |
| 4344 | FixKeyState(DeviceEvent *event, DeviceIntPtr keybd) |
| 4345 | { |
| 4346 | int key = event->detail.key; |
| 4347 | |
| 4348 | if (event->type == ET_KeyPress) { |
| 4349 | DebugF("FixKeyState: Key %d %s\n", key, |
| 4350 | ((event->type == ET_KeyPress) ? "down" : "up")); |
| 4351 | } |
| 4352 | |
| 4353 | if (event->type == ET_KeyPress) |
| 4354 | set_key_down(keybd, key, KEY_PROCESSED); |
| 4355 | else if (event->type == ET_KeyRelease) |
| 4356 | set_key_up(keybd, key, KEY_PROCESSED); |
| 4357 | else |
| 4358 | FatalError("Impossible keyboard event"); |
| 4359 | } |
| 4360 | |
| 4361 | #define AtMostOneClient \ |
| 4362 | (SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask) |
| 4363 | #define ManagerMask \ |
| 4364 | (SubstructureRedirectMask | ResizeRedirectMask) |
| 4365 | |
| 4366 | /** |
| 4367 | * Recalculate which events may be deliverable for the given window. |
| 4368 | * Recalculated mask is used for quicker determination which events may be |
| 4369 | * delivered to a window. |
| 4370 | * |
| 4371 | * The otherEventMasks on a WindowOptional is the combination of all event |
| 4372 | * masks set by all clients on the window. |
| 4373 | * deliverableEventMask is the combination of the eventMask and the |
| 4374 | * otherEventMask plus the events that may be propagated to the parent. |
| 4375 | * |
| 4376 | * Traverses to siblings and parents of the window. |
| 4377 | */ |
| 4378 | void |
| 4379 | RecalculateDeliverableEvents(WindowPtr pWin) |
| 4380 | { |
| 4381 | OtherClients *others; |
| 4382 | WindowPtr pChild; |
| 4383 | |
| 4384 | pChild = pWin; |
| 4385 | while (1) { |
| 4386 | if (pChild->optional) { |
| 4387 | pChild->optional->otherEventMasks = 0; |
| 4388 | for (others = wOtherClients(pChild); others; others = others->next) { |
| 4389 | pChild->optional->otherEventMasks |= others->mask; |
| 4390 | } |
| 4391 | } |
| 4392 | pChild->deliverableEvents = pChild->eventMask | |
| 4393 | wOtherEventMasks(pChild); |
| 4394 | if (pChild->parent) |
| 4395 | pChild->deliverableEvents |= |
| 4396 | (pChild->parent->deliverableEvents & |
| 4397 | ~wDontPropagateMask(pChild) & PropagateMask); |
| 4398 | if (pChild->firstChild) { |
| 4399 | pChild = pChild->firstChild; |
| 4400 | continue; |
| 4401 | } |
| 4402 | while (!pChild->nextSib && (pChild != pWin)) |
| 4403 | pChild = pChild->parent; |
| 4404 | if (pChild == pWin) |
| 4405 | break; |
| 4406 | pChild = pChild->nextSib; |
| 4407 | } |
| 4408 | } |
| 4409 | |
| 4410 | /** |
| 4411 | * |
| 4412 | * \param value must conform to DeleteType |
| 4413 | */ |
| 4414 | int |
| 4415 | OtherClientGone(pointer value, XID id) |
| 4416 | { |
| 4417 | OtherClientsPtr other, prev; |
| 4418 | WindowPtr pWin = (WindowPtr) value; |
| 4419 | |
| 4420 | prev = 0; |
| 4421 | for (other = wOtherClients(pWin); other; other = other->next) { |
| 4422 | if (other->resource == id) { |
| 4423 | if (prev) |
| 4424 | prev->next = other->next; |
| 4425 | else { |
| 4426 | if (!(pWin->optional->otherClients = other->next)) |
| 4427 | CheckWindowOptionalNeed(pWin); |
| 4428 | } |
| 4429 | free(other); |
| 4430 | RecalculateDeliverableEvents(pWin); |
| 4431 | return Success; |
| 4432 | } |
| 4433 | prev = other; |
| 4434 | } |
| 4435 | FatalError("client not on event list"); |
| 4436 | } |
| 4437 | |
| 4438 | int |
| 4439 | EventSelectForWindow(WindowPtr pWin, ClientPtr client, Mask mask) |
| 4440 | { |
| 4441 | Mask check; |
| 4442 | OtherClients *others; |
| 4443 | DeviceIntPtr dev; |
| 4444 | int rc; |
| 4445 | |
| 4446 | if (mask & ~AllEventMasks) { |
| 4447 | client->errorValue = mask; |
| 4448 | return BadValue; |
| 4449 | } |
| 4450 | check = (mask & ManagerMask); |
| 4451 | if (check) { |
| 4452 | rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id, |
| 4453 | RT_WINDOW, pWin, RT_NONE, NULL, DixManageAccess); |
| 4454 | if (rc != Success) |
| 4455 | return rc; |
| 4456 | } |
| 4457 | check = (mask & AtMostOneClient); |
| 4458 | if (check & (pWin->eventMask | wOtherEventMasks(pWin))) { |
| 4459 | /* It is illegal for two different clients to select on any of the |
| 4460 | events for AtMostOneClient. However, it is OK, for some client to |
| 4461 | continue selecting on one of those events. */ |
| 4462 | if ((wClient(pWin) != client) && (check & pWin->eventMask)) |
| 4463 | return BadAccess; |
| 4464 | for (others = wOtherClients(pWin); others; others = others->next) { |
| 4465 | if (!SameClient(others, client) && (check & others->mask)) |
| 4466 | return BadAccess; |
| 4467 | } |
| 4468 | } |
| 4469 | if (wClient(pWin) == client) { |
| 4470 | check = pWin->eventMask; |
| 4471 | pWin->eventMask = mask; |
| 4472 | } |
| 4473 | else { |
| 4474 | for (others = wOtherClients(pWin); others; others = others->next) { |
| 4475 | if (SameClient(others, client)) { |
| 4476 | check = others->mask; |
| 4477 | if (mask == 0) { |
| 4478 | FreeResource(others->resource, RT_NONE); |
| 4479 | return Success; |
| 4480 | } |
| 4481 | else |
| 4482 | others->mask = mask; |
| 4483 | goto maskSet; |
| 4484 | } |
| 4485 | } |
| 4486 | check = 0; |
| 4487 | if (!pWin->optional && !MakeWindowOptional(pWin)) |
| 4488 | return BadAlloc; |
| 4489 | others = malloc(sizeof(OtherClients)); |
| 4490 | if (!others) |
| 4491 | return BadAlloc; |
| 4492 | others->mask = mask; |
| 4493 | others->resource = FakeClientID(client->index); |
| 4494 | others->next = pWin->optional->otherClients; |
| 4495 | pWin->optional->otherClients = others; |
| 4496 | if (!AddResource(others->resource, RT_OTHERCLIENT, (pointer) pWin)) |
| 4497 | return BadAlloc; |
| 4498 | } |
| 4499 | maskSet: |
| 4500 | if ((mask & PointerMotionHintMask) && !(check & PointerMotionHintMask)) { |
| 4501 | for (dev = inputInfo.devices; dev; dev = dev->next) { |
| 4502 | if (dev->valuator && dev->valuator->motionHintWindow == pWin) |
| 4503 | dev->valuator->motionHintWindow = NullWindow; |
| 4504 | } |
| 4505 | } |
| 4506 | RecalculateDeliverableEvents(pWin); |
| 4507 | return Success; |
| 4508 | } |
| 4509 | |
| 4510 | int |
| 4511 | EventSuppressForWindow(WindowPtr pWin, ClientPtr client, |
| 4512 | Mask mask, Bool *checkOptional) |
| 4513 | { |
| 4514 | int i, freed; |
| 4515 | |
| 4516 | if (mask & ~PropagateMask) { |
| 4517 | client->errorValue = mask; |
| 4518 | return BadValue; |
| 4519 | } |
| 4520 | if (pWin->dontPropagate) |
| 4521 | DontPropagateRefCnts[pWin->dontPropagate]--; |
| 4522 | if (!mask) |
| 4523 | i = 0; |
| 4524 | else { |
| 4525 | for (i = DNPMCOUNT, freed = 0; --i > 0;) { |
| 4526 | if (!DontPropagateRefCnts[i]) |
| 4527 | freed = i; |
| 4528 | else if (mask == DontPropagateMasks[i]) |
| 4529 | break; |
| 4530 | } |
| 4531 | if (!i && freed) { |
| 4532 | i = freed; |
| 4533 | DontPropagateMasks[i] = mask; |
| 4534 | } |
| 4535 | } |
| 4536 | if (i || !mask) { |
| 4537 | pWin->dontPropagate = i; |
| 4538 | if (i) |
| 4539 | DontPropagateRefCnts[i]++; |
| 4540 | if (pWin->optional) { |
| 4541 | pWin->optional->dontPropagateMask = mask; |
| 4542 | *checkOptional = TRUE; |
| 4543 | } |
| 4544 | } |
| 4545 | else { |
| 4546 | if (!pWin->optional && !MakeWindowOptional(pWin)) { |
| 4547 | if (pWin->dontPropagate) |
| 4548 | DontPropagateRefCnts[pWin->dontPropagate]++; |
| 4549 | return BadAlloc; |
| 4550 | } |
| 4551 | pWin->dontPropagate = 0; |
| 4552 | pWin->optional->dontPropagateMask = mask; |
| 4553 | } |
| 4554 | RecalculateDeliverableEvents(pWin); |
| 4555 | return Success; |
| 4556 | } |
| 4557 | |
| 4558 | /** |
| 4559 | * Assembles an EnterNotify or LeaveNotify and sends it event to the client. |
| 4560 | * Uses the paired keyboard to get some additional information. |
| 4561 | */ |
| 4562 | void |
| 4563 | CoreEnterLeaveEvent(DeviceIntPtr mouse, |
| 4564 | int type, |
| 4565 | int mode, int detail, WindowPtr pWin, Window child) |
| 4566 | { |
| 4567 | xEvent event = { |
| 4568 | .u.u.type = type, |
| 4569 | .u.u.detail = detail |
| 4570 | }; |
| 4571 | WindowPtr focus; |
| 4572 | DeviceIntPtr keybd; |
| 4573 | GrabPtr grab = mouse->deviceGrab.grab; |
| 4574 | Mask mask; |
| 4575 | |
| 4576 | keybd = GetMaster(mouse, KEYBOARD_OR_FLOAT); |
| 4577 | |
| 4578 | if ((pWin == mouse->valuator->motionHintWindow) && |
| 4579 | (detail != NotifyInferior)) |
| 4580 | mouse->valuator->motionHintWindow = NullWindow; |
| 4581 | if (grab) { |
| 4582 | mask = (pWin == grab->window) ? grab->eventMask : 0; |
| 4583 | if (grab->ownerEvents) |
| 4584 | mask |= EventMaskForClient(pWin, rClient(grab)); |
| 4585 | } |
| 4586 | else { |
| 4587 | mask = pWin->eventMask | wOtherEventMasks(pWin); |
| 4588 | } |
| 4589 | |
| 4590 | event.u.enterLeave.time = currentTime.milliseconds; |
| 4591 | event.u.enterLeave.rootX = mouse->spriteInfo->sprite->hot.x; |
| 4592 | event.u.enterLeave.rootY = mouse->spriteInfo->sprite->hot.y; |
| 4593 | /* Counts on the same initial structure of crossing & button events! */ |
| 4594 | FixUpEventFromWindow(mouse->spriteInfo->sprite, &event, pWin, None, FALSE); |
| 4595 | /* Enter/Leave events always set child */ |
| 4596 | event.u.enterLeave.child = child; |
| 4597 | event.u.enterLeave.flags = event.u.keyButtonPointer.sameScreen ? |
| 4598 | ELFlagSameScreen : 0; |
| 4599 | event.u.enterLeave.state = |
| 4600 | mouse->button ? (mouse->button->state & 0x1f00) : 0; |
| 4601 | if (keybd) |
| 4602 | event.u.enterLeave.state |= |
| 4603 | XkbGrabStateFromRec(&keybd->key->xkbInfo->state); |
| 4604 | event.u.enterLeave.mode = mode; |
| 4605 | focus = (keybd) ? keybd->focus->win : None; |
| 4606 | if ((focus != NoneWin) && |
| 4607 | ((pWin == focus) || (focus == PointerRootWin) || IsParent(focus, pWin))) |
| 4608 | event.u.enterLeave.flags |= ELFlagFocus; |
| 4609 | |
| 4610 | if ((mask & GetEventFilter(mouse, &event))) { |
| 4611 | if (grab) |
| 4612 | TryClientEvents(rClient(grab), mouse, &event, 1, mask, |
| 4613 | GetEventFilter(mouse, &event), grab); |
| 4614 | else |
| 4615 | DeliverEventsToWindow(mouse, pWin, &event, 1, |
| 4616 | GetEventFilter(mouse, &event), NullGrab); |
| 4617 | } |
| 4618 | |
| 4619 | if ((type == EnterNotify) && (mask & KeymapStateMask)) { |
| 4620 | xKeymapEvent ke = { |
| 4621 | .type = KeymapNotify |
| 4622 | }; |
| 4623 | ClientPtr client = grab ? rClient(grab) : wClient(pWin); |
| 4624 | int rc; |
| 4625 | |
| 4626 | rc = XaceHook(XACE_DEVICE_ACCESS, client, keybd, DixReadAccess); |
| 4627 | if (rc == Success) |
| 4628 | memcpy((char *) &ke.map[0], (char *) &keybd->key->down[1], 31); |
| 4629 | |
| 4630 | if (grab) |
| 4631 | TryClientEvents(rClient(grab), keybd, (xEvent *) &ke, 1, |
| 4632 | mask, KeymapStateMask, grab); |
| 4633 | else |
| 4634 | DeliverEventsToWindow(mouse, pWin, (xEvent *) &ke, 1, |
| 4635 | KeymapStateMask, NullGrab); |
| 4636 | } |
| 4637 | } |
| 4638 | |
| 4639 | void |
| 4640 | DeviceEnterLeaveEvent(DeviceIntPtr mouse, |
| 4641 | int sourceid, |
| 4642 | int type, |
| 4643 | int mode, int detail, WindowPtr pWin, Window child) |
| 4644 | { |
| 4645 | GrabPtr grab = mouse->deviceGrab.grab; |
| 4646 | xXIEnterEvent *event; |
| 4647 | WindowPtr focus; |
| 4648 | int filter; |
| 4649 | int btlen, len, i; |
| 4650 | DeviceIntPtr kbd; |
| 4651 | |
| 4652 | if ((mode == XINotifyPassiveGrab && type == XI_Leave) || |
| 4653 | (mode == XINotifyPassiveUngrab && type == XI_Enter)) |
| 4654 | return; |
| 4655 | |
| 4656 | btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0; |
| 4657 | btlen = bytes_to_int32(btlen); |
| 4658 | len = sizeof(xXIEnterEvent) + btlen * 4; |
| 4659 | |
| 4660 | event = calloc(1, len); |
| 4661 | event->type = GenericEvent; |
| 4662 | event->extension = IReqCode; |
| 4663 | event->evtype = type; |
| 4664 | event->length = (len - sizeof(xEvent)) / 4; |
| 4665 | event->buttons_len = btlen; |
| 4666 | event->detail = detail; |
| 4667 | event->time = currentTime.milliseconds; |
| 4668 | event->deviceid = mouse->id; |
| 4669 | event->sourceid = sourceid; |
| 4670 | event->mode = mode; |
| 4671 | event->root_x = double_to_fp1616(mouse->spriteInfo->sprite->hot.x); |
| 4672 | event->root_y = double_to_fp1616(mouse->spriteInfo->sprite->hot.y); |
| 4673 | |
| 4674 | for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++) |
| 4675 | if (BitIsOn(mouse->button->down, i)) |
| 4676 | SetBit(&event[1], i); |
| 4677 | |
| 4678 | kbd = GetMaster(mouse, MASTER_KEYBOARD); |
| 4679 | if (kbd && kbd->key) { |
| 4680 | event->mods.base_mods = kbd->key->xkbInfo->state.base_mods; |
| 4681 | event->mods.latched_mods = kbd->key->xkbInfo->state.latched_mods; |
| 4682 | event->mods.locked_mods = kbd->key->xkbInfo->state.locked_mods; |
| 4683 | |
| 4684 | event->group.base_group = kbd->key->xkbInfo->state.base_group; |
| 4685 | event->group.latched_group = kbd->key->xkbInfo->state.latched_group; |
| 4686 | event->group.locked_group = kbd->key->xkbInfo->state.locked_group; |
| 4687 | } |
| 4688 | |
| 4689 | focus = (kbd) ? kbd->focus->win : None; |
| 4690 | if ((focus != NoneWin) && |
| 4691 | ((pWin == focus) || (focus == PointerRootWin) || IsParent(focus, pWin))) |
| 4692 | event->focus = TRUE; |
| 4693 | |
| 4694 | FixUpEventFromWindow(mouse->spriteInfo->sprite, (xEvent *) event, pWin, |
| 4695 | None, FALSE); |
| 4696 | |
| 4697 | filter = GetEventFilter(mouse, (xEvent *) event); |
| 4698 | |
| 4699 | if (grab && grab->grabtype == XI2) { |
| 4700 | Mask mask; |
| 4701 | |
| 4702 | mask = xi2mask_isset(grab->xi2mask, mouse, type); |
| 4703 | TryClientEvents(rClient(grab), mouse, (xEvent *) event, 1, mask, 1, |
| 4704 | grab); |
| 4705 | } |
| 4706 | else { |
| 4707 | if (!WindowXI2MaskIsset(mouse, pWin, (xEvent *) event)) |
| 4708 | goto out; |
| 4709 | DeliverEventsToWindow(mouse, pWin, (xEvent *) event, 1, filter, |
| 4710 | NullGrab); |
| 4711 | } |
| 4712 | |
| 4713 | out: |
| 4714 | free(event); |
| 4715 | } |
| 4716 | |
| 4717 | void |
| 4718 | CoreFocusEvent(DeviceIntPtr dev, int type, int mode, int detail, WindowPtr pWin) |
| 4719 | { |
| 4720 | xEvent event = { |
| 4721 | .u.u.type = type, |
| 4722 | .u.u.detail = detail |
| 4723 | }; |
| 4724 | event.u.focus.mode = mode; |
| 4725 | event.u.focus.window = pWin->drawable.id; |
| 4726 | |
| 4727 | DeliverEventsToWindow(dev, pWin, &event, 1, |
| 4728 | GetEventFilter(dev, &event), NullGrab); |
| 4729 | if ((type == FocusIn) && |
| 4730 | ((pWin->eventMask | wOtherEventMasks(pWin)) & KeymapStateMask)) { |
| 4731 | xKeymapEvent ke = { |
| 4732 | .type = KeymapNotify |
| 4733 | }; |
| 4734 | ClientPtr client = wClient(pWin); |
| 4735 | int rc; |
| 4736 | |
| 4737 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess); |
| 4738 | if (rc == Success) |
| 4739 | memcpy((char *) &ke.map[0], (char *) &dev->key->down[1], 31); |
| 4740 | |
| 4741 | DeliverEventsToWindow(dev, pWin, (xEvent *) &ke, 1, |
| 4742 | KeymapStateMask, NullGrab); |
| 4743 | } |
| 4744 | } |
| 4745 | |
| 4746 | /** |
| 4747 | * Set the input focus to the given window. Subsequent keyboard events will be |
| 4748 | * delivered to the given window. |
| 4749 | * |
| 4750 | * Usually called from ProcSetInputFocus as result of a client request. If so, |
| 4751 | * the device is the inputInfo.keyboard. |
| 4752 | * If called from ProcXSetInputFocus as result of a client xinput request, the |
| 4753 | * device is set to the device specified by the client. |
| 4754 | * |
| 4755 | * @param client Client that requested input focus change. |
| 4756 | * @param dev Focus device. |
| 4757 | * @param focusID The window to obtain the focus. Can be PointerRoot or None. |
| 4758 | * @param revertTo Specifies where the focus reverts to when window becomes |
| 4759 | * unviewable. |
| 4760 | * @param ctime Specifies the time. |
| 4761 | * @param followOK True if pointer is allowed to follow the keyboard. |
| 4762 | */ |
| 4763 | int |
| 4764 | SetInputFocus(ClientPtr client, |
| 4765 | DeviceIntPtr dev, |
| 4766 | Window focusID, CARD8 revertTo, Time ctime, Bool followOK) |
| 4767 | { |
| 4768 | FocusClassPtr focus; |
| 4769 | WindowPtr focusWin; |
| 4770 | int mode, rc; |
| 4771 | TimeStamp time; |
| 4772 | DeviceIntPtr keybd; /* used for FollowKeyboard or FollowKeyboardWin */ |
| 4773 | |
| 4774 | UpdateCurrentTime(); |
| 4775 | if ((revertTo != RevertToParent) && |
| 4776 | (revertTo != RevertToPointerRoot) && |
| 4777 | (revertTo != RevertToNone) && |
| 4778 | ((revertTo != RevertToFollowKeyboard) || !followOK)) { |
| 4779 | client->errorValue = revertTo; |
| 4780 | return BadValue; |
| 4781 | } |
| 4782 | time = ClientTimeToServerTime(ctime); |
| 4783 | |
| 4784 | keybd = GetMaster(dev, KEYBOARD_OR_FLOAT); |
| 4785 | |
| 4786 | if ((focusID == None) || (focusID == PointerRoot)) |
| 4787 | focusWin = (WindowPtr) (long) focusID; |
| 4788 | else if ((focusID == FollowKeyboard) && followOK) { |
| 4789 | focusWin = keybd->focus->win; |
| 4790 | } |
| 4791 | else { |
| 4792 | rc = dixLookupWindow(&focusWin, focusID, client, DixSetAttrAccess); |
| 4793 | if (rc != Success) |
| 4794 | return rc; |
| 4795 | /* It is a match error to try to set the input focus to an |
| 4796 | unviewable window. */ |
| 4797 | if (!focusWin->realized) |
| 4798 | return BadMatch; |
| 4799 | } |
| 4800 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixSetFocusAccess); |
| 4801 | if (rc != Success) |
| 4802 | return Success; |
| 4803 | |
| 4804 | focus = dev->focus; |
| 4805 | if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 4806 | (CompareTimeStamps(time, focus->time) == EARLIER)) |
| 4807 | return Success; |
| 4808 | mode = (dev->deviceGrab.grab) ? NotifyWhileGrabbed : NotifyNormal; |
| 4809 | if (focus->win == FollowKeyboardWin) { |
| 4810 | if (!ActivateFocusInGrab(dev, keybd->focus->win, focusWin)) |
| 4811 | DoFocusEvents(dev, keybd->focus->win, focusWin, mode); |
| 4812 | } |
| 4813 | else { |
| 4814 | if (!ActivateFocusInGrab(dev, focus->win, focusWin)) |
| 4815 | DoFocusEvents(dev, focus->win, focusWin, mode); |
| 4816 | } |
| 4817 | focus->time = time; |
| 4818 | focus->revert = revertTo; |
| 4819 | if (focusID == FollowKeyboard) |
| 4820 | focus->win = FollowKeyboardWin; |
| 4821 | else |
| 4822 | focus->win = focusWin; |
| 4823 | if ((focusWin == NoneWin) || (focusWin == PointerRootWin)) |
| 4824 | focus->traceGood = 0; |
| 4825 | else { |
| 4826 | int depth = 0; |
| 4827 | WindowPtr pWin; |
| 4828 | |
| 4829 | for (pWin = focusWin; pWin; pWin = pWin->parent) |
| 4830 | depth++; |
| 4831 | if (depth > focus->traceSize) { |
| 4832 | focus->traceSize = depth + 1; |
| 4833 | focus->trace = realloc(focus->trace, |
| 4834 | focus->traceSize * sizeof(WindowPtr)); |
| 4835 | } |
| 4836 | focus->traceGood = depth; |
| 4837 | for (pWin = focusWin, depth--; pWin; pWin = pWin->parent, depth--) |
| 4838 | focus->trace[depth] = pWin; |
| 4839 | } |
| 4840 | return Success; |
| 4841 | } |
| 4842 | |
| 4843 | /** |
| 4844 | * Server-side protocol handling for SetInputFocus request. |
| 4845 | * |
| 4846 | * Sets the input focus for the virtual core keyboard. |
| 4847 | */ |
| 4848 | int |
| 4849 | ProcSetInputFocus(ClientPtr client) |
| 4850 | { |
| 4851 | DeviceIntPtr kbd = PickKeyboard(client); |
| 4852 | |
| 4853 | REQUEST(xSetInputFocusReq); |
| 4854 | |
| 4855 | REQUEST_SIZE_MATCH(xSetInputFocusReq); |
| 4856 | |
| 4857 | return SetInputFocus(client, kbd, stuff->focus, |
| 4858 | stuff->revertTo, stuff->time, FALSE); |
| 4859 | } |
| 4860 | |
| 4861 | /** |
| 4862 | * Server-side protocol handling for GetInputFocus request. |
| 4863 | * |
| 4864 | * Sends the current input focus for the client's keyboard back to the |
| 4865 | * client. |
| 4866 | */ |
| 4867 | int |
| 4868 | ProcGetInputFocus(ClientPtr client) |
| 4869 | { |
| 4870 | DeviceIntPtr kbd = PickKeyboard(client); |
| 4871 | xGetInputFocusReply rep; |
| 4872 | FocusClassPtr focus = kbd->focus; |
| 4873 | int rc; |
| 4874 | |
| 4875 | /* REQUEST(xReq); */ |
| 4876 | REQUEST_SIZE_MATCH(xReq); |
| 4877 | |
| 4878 | rc = XaceHook(XACE_DEVICE_ACCESS, client, kbd, DixGetFocusAccess); |
| 4879 | if (rc != Success) |
| 4880 | return rc; |
| 4881 | |
| 4882 | rep = (xGetInputFocusReply) { |
| 4883 | .type = X_Reply, |
| 4884 | .length = 0, |
| 4885 | .sequenceNumber = client->sequence, |
| 4886 | .revertTo = focus->revert |
| 4887 | }; |
| 4888 | |
| 4889 | if (focus->win == NoneWin) |
| 4890 | rep.focus = None; |
| 4891 | else if (focus->win == PointerRootWin) |
| 4892 | rep.focus = PointerRoot; |
| 4893 | else |
| 4894 | rep.focus = focus->win->drawable.id; |
| 4895 | |
| 4896 | WriteReplyToClient(client, sizeof(xGetInputFocusReply), &rep); |
| 4897 | return Success; |
| 4898 | } |
| 4899 | |
| 4900 | /** |
| 4901 | * Server-side protocol handling for GrabPointer request. |
| 4902 | * |
| 4903 | * Sets an active grab on the client's ClientPointer and returns success |
| 4904 | * status to client. |
| 4905 | */ |
| 4906 | int |
| 4907 | ProcGrabPointer(ClientPtr client) |
| 4908 | { |
| 4909 | xGrabPointerReply rep; |
| 4910 | DeviceIntPtr device = PickPointer(client); |
| 4911 | GrabPtr grab; |
| 4912 | GrabMask mask; |
| 4913 | WindowPtr confineTo; |
| 4914 | BYTE status; |
| 4915 | |
| 4916 | REQUEST(xGrabPointerReq); |
| 4917 | int rc; |
| 4918 | |
| 4919 | REQUEST_SIZE_MATCH(xGrabPointerReq); |
| 4920 | UpdateCurrentTime(); |
| 4921 | |
| 4922 | if (stuff->eventMask & ~PointerGrabMask) { |
| 4923 | client->errorValue = stuff->eventMask; |
| 4924 | return BadValue; |
| 4925 | } |
| 4926 | |
| 4927 | if (stuff->confineTo == None) |
| 4928 | confineTo = NullWindow; |
| 4929 | else { |
| 4930 | rc = dixLookupWindow(&confineTo, stuff->confineTo, client, |
| 4931 | DixSetAttrAccess); |
| 4932 | if (rc != Success) |
| 4933 | return rc; |
| 4934 | } |
| 4935 | |
| 4936 | grab = device->deviceGrab.grab; |
| 4937 | |
| 4938 | if (grab && grab->confineTo && !confineTo) |
| 4939 | ConfineCursorToWindow(device, GetCurrentRootWindow(device), FALSE, FALSE); |
| 4940 | |
| 4941 | mask.core = stuff->eventMask; |
| 4942 | |
| 4943 | rc = GrabDevice(client, device, stuff->pointerMode, stuff->keyboardMode, |
| 4944 | stuff->grabWindow, stuff->ownerEvents, stuff->time, |
| 4945 | &mask, CORE, stuff->cursor, stuff->confineTo, &status); |
| 4946 | if (rc != Success) |
| 4947 | return rc; |
| 4948 | |
| 4949 | rep = (xGrabPointerReply) { |
| 4950 | .type = X_Reply, |
| 4951 | .status = status, |
| 4952 | .sequenceNumber = client->sequence, |
| 4953 | .length = 0 |
| 4954 | }; |
| 4955 | WriteReplyToClient(client, sizeof(xGrabPointerReply), &rep); |
| 4956 | return Success; |
| 4957 | } |
| 4958 | |
| 4959 | /** |
| 4960 | * Server-side protocol handling for ChangeActivePointerGrab request. |
| 4961 | * |
| 4962 | * Changes properties of the grab hold by the client. If the client does not |
| 4963 | * hold an active grab on the device, nothing happens. |
| 4964 | */ |
| 4965 | int |
| 4966 | ProcChangeActivePointerGrab(ClientPtr client) |
| 4967 | { |
| 4968 | DeviceIntPtr device; |
| 4969 | GrabPtr grab; |
| 4970 | CursorPtr newCursor, oldCursor; |
| 4971 | |
| 4972 | REQUEST(xChangeActivePointerGrabReq); |
| 4973 | TimeStamp time; |
| 4974 | |
| 4975 | REQUEST_SIZE_MATCH(xChangeActivePointerGrabReq); |
| 4976 | if (stuff->eventMask & ~PointerGrabMask) { |
| 4977 | client->errorValue = stuff->eventMask; |
| 4978 | return BadValue; |
| 4979 | } |
| 4980 | if (stuff->cursor == None) |
| 4981 | newCursor = NullCursor; |
| 4982 | else { |
| 4983 | int rc = dixLookupResourceByType((pointer *) &newCursor, stuff->cursor, |
| 4984 | RT_CURSOR, client, DixUseAccess); |
| 4985 | |
| 4986 | if (rc != Success) { |
| 4987 | client->errorValue = stuff->cursor; |
| 4988 | return rc; |
| 4989 | } |
| 4990 | } |
| 4991 | |
| 4992 | device = PickPointer(client); |
| 4993 | grab = device->deviceGrab.grab; |
| 4994 | |
| 4995 | if (!grab) |
| 4996 | return Success; |
| 4997 | if (!SameClient(grab, client)) |
| 4998 | return Success; |
| 4999 | time = ClientTimeToServerTime(stuff->time); |
| 5000 | if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 5001 | (CompareTimeStamps(time, device->deviceGrab.grabTime) == EARLIER)) |
| 5002 | return Success; |
| 5003 | oldCursor = grab->cursor; |
| 5004 | grab->cursor = RefCursor(newCursor); |
| 5005 | PostNewCursor(device); |
| 5006 | if (oldCursor) |
| 5007 | FreeCursor(oldCursor, (Cursor) 0); |
| 5008 | grab->eventMask = stuff->eventMask; |
| 5009 | return Success; |
| 5010 | } |
| 5011 | |
| 5012 | /** |
| 5013 | * Server-side protocol handling for UngrabPointer request. |
| 5014 | * |
| 5015 | * Deletes a pointer grab on a device the client has grabbed. |
| 5016 | */ |
| 5017 | int |
| 5018 | ProcUngrabPointer(ClientPtr client) |
| 5019 | { |
| 5020 | DeviceIntPtr device = PickPointer(client); |
| 5021 | GrabPtr grab; |
| 5022 | TimeStamp time; |
| 5023 | |
| 5024 | REQUEST(xResourceReq); |
| 5025 | |
| 5026 | REQUEST_SIZE_MATCH(xResourceReq); |
| 5027 | UpdateCurrentTime(); |
| 5028 | grab = device->deviceGrab.grab; |
| 5029 | |
| 5030 | time = ClientTimeToServerTime(stuff->id); |
| 5031 | if ((CompareTimeStamps(time, currentTime) != LATER) && |
| 5032 | (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) && |
| 5033 | (grab) && SameClient(grab, client)) |
| 5034 | (*device->deviceGrab.DeactivateGrab) (device); |
| 5035 | return Success; |
| 5036 | } |
| 5037 | |
| 5038 | /** |
| 5039 | * Sets a grab on the given device. |
| 5040 | * |
| 5041 | * Called from ProcGrabKeyboard to work on the client's keyboard. |
| 5042 | * Called from ProcXGrabDevice to work on the device specified by the client. |
| 5043 | * |
| 5044 | * The parameters this_mode and other_mode represent the keyboard_mode and |
| 5045 | * pointer_mode parameters of XGrabKeyboard(). |
| 5046 | * See man page for details on all the parameters |
| 5047 | * |
| 5048 | * @param client Client that owns the grab. |
| 5049 | * @param dev The device to grab. |
| 5050 | * @param this_mode GrabModeSync or GrabModeAsync |
| 5051 | * @param other_mode GrabModeSync or GrabModeAsync |
| 5052 | * @param status Return code to be returned to the caller. |
| 5053 | * |
| 5054 | * @returns Success or BadValue. |
| 5055 | */ |
| 5056 | int |
| 5057 | GrabDevice(ClientPtr client, DeviceIntPtr dev, |
| 5058 | unsigned pointer_mode, unsigned keyboard_mode, Window grabWindow, |
| 5059 | unsigned ownerEvents, Time ctime, GrabMask *mask, |
| 5060 | int grabtype, Cursor curs, Window confineToWin, CARD8 *status) |
| 5061 | { |
| 5062 | WindowPtr pWin, confineTo; |
| 5063 | GrabPtr grab; |
| 5064 | TimeStamp time; |
| 5065 | Mask access_mode = DixGrabAccess; |
| 5066 | int rc; |
| 5067 | GrabInfoPtr grabInfo = &dev->deviceGrab; |
| 5068 | CursorPtr cursor; |
| 5069 | |
| 5070 | UpdateCurrentTime(); |
| 5071 | if ((keyboard_mode != GrabModeSync) && (keyboard_mode != GrabModeAsync)) { |
| 5072 | client->errorValue = keyboard_mode; |
| 5073 | return BadValue; |
| 5074 | } |
| 5075 | if ((pointer_mode != GrabModeSync) && (pointer_mode != GrabModeAsync)) { |
| 5076 | client->errorValue = pointer_mode; |
| 5077 | return BadValue; |
| 5078 | } |
| 5079 | if ((ownerEvents != xFalse) && (ownerEvents != xTrue)) { |
| 5080 | client->errorValue = ownerEvents; |
| 5081 | return BadValue; |
| 5082 | } |
| 5083 | |
| 5084 | rc = dixLookupWindow(&pWin, grabWindow, client, DixSetAttrAccess); |
| 5085 | if (rc != Success) |
| 5086 | return rc; |
| 5087 | |
| 5088 | if (confineToWin == None) |
| 5089 | confineTo = NullWindow; |
| 5090 | else { |
| 5091 | rc = dixLookupWindow(&confineTo, confineToWin, client, |
| 5092 | DixSetAttrAccess); |
| 5093 | if (rc != Success) |
| 5094 | return rc; |
| 5095 | } |
| 5096 | |
| 5097 | if (curs == None) |
| 5098 | cursor = NullCursor; |
| 5099 | else { |
| 5100 | rc = dixLookupResourceByType((pointer *) &cursor, curs, RT_CURSOR, |
| 5101 | client, DixUseAccess); |
| 5102 | if (rc != Success) { |
| 5103 | client->errorValue = curs; |
| 5104 | return rc; |
| 5105 | } |
| 5106 | access_mode |= DixForceAccess; |
| 5107 | } |
| 5108 | |
| 5109 | if (keyboard_mode == GrabModeSync || pointer_mode == GrabModeSync) |
| 5110 | access_mode |= DixFreezeAccess; |
| 5111 | rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode); |
| 5112 | if (rc != Success) |
| 5113 | return rc; |
| 5114 | |
| 5115 | time = ClientTimeToServerTime(ctime); |
| 5116 | grab = grabInfo->grab; |
| 5117 | if (grab && grab->grabtype != grabtype) |
| 5118 | *status = AlreadyGrabbed; |
| 5119 | else if (grab && !SameClient(grab, client)) |
| 5120 | *status = AlreadyGrabbed; |
| 5121 | else if ((!pWin->realized) || |
| 5122 | (confineTo && |
| 5123 | !(confineTo->realized && BorderSizeNotEmpty(dev, confineTo)))) |
| 5124 | *status = GrabNotViewable; |
| 5125 | else if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 5126 | (CompareTimeStamps(time, grabInfo->grabTime) == EARLIER)) |
| 5127 | *status = GrabInvalidTime; |
| 5128 | else if (grabInfo->sync.frozen && |
| 5129 | grabInfo->sync.other && !SameClient(grabInfo->sync.other, client)) |
| 5130 | *status = GrabFrozen; |
| 5131 | else { |
| 5132 | GrabPtr tempGrab; |
| 5133 | |
| 5134 | tempGrab = AllocGrab(NULL); |
| 5135 | |
| 5136 | tempGrab->next = NULL; |
| 5137 | tempGrab->window = pWin; |
| 5138 | tempGrab->resource = client->clientAsMask; |
| 5139 | tempGrab->ownerEvents = ownerEvents; |
| 5140 | tempGrab->keyboardMode = keyboard_mode; |
| 5141 | tempGrab->pointerMode = pointer_mode; |
| 5142 | if (grabtype == CORE) |
| 5143 | tempGrab->eventMask = mask->core; |
| 5144 | else if (grabtype == XI) |
| 5145 | tempGrab->eventMask = mask->xi; |
| 5146 | else |
| 5147 | xi2mask_merge(tempGrab->xi2mask, mask->xi2mask); |
| 5148 | tempGrab->device = dev; |
| 5149 | tempGrab->cursor = RefCursor(cursor); |
| 5150 | tempGrab->confineTo = confineTo; |
| 5151 | tempGrab->grabtype = grabtype; |
| 5152 | (*grabInfo->ActivateGrab) (dev, tempGrab, time, FALSE); |
| 5153 | *status = GrabSuccess; |
| 5154 | |
| 5155 | FreeGrab(tempGrab); |
| 5156 | } |
| 5157 | return Success; |
| 5158 | } |
| 5159 | |
| 5160 | /** |
| 5161 | * Server-side protocol handling for GrabKeyboard request. |
| 5162 | * |
| 5163 | * Grabs the client's keyboard and returns success status to client. |
| 5164 | */ |
| 5165 | int |
| 5166 | ProcGrabKeyboard(ClientPtr client) |
| 5167 | { |
| 5168 | xGrabKeyboardReply rep; |
| 5169 | BYTE status; |
| 5170 | |
| 5171 | REQUEST(xGrabKeyboardReq); |
| 5172 | int result; |
| 5173 | DeviceIntPtr keyboard = PickKeyboard(client); |
| 5174 | GrabMask mask; |
| 5175 | |
| 5176 | REQUEST_SIZE_MATCH(xGrabKeyboardReq); |
| 5177 | |
| 5178 | mask.core = KeyPressMask | KeyReleaseMask; |
| 5179 | |
| 5180 | result = GrabDevice(client, keyboard, stuff->pointerMode, |
| 5181 | stuff->keyboardMode, stuff->grabWindow, |
| 5182 | stuff->ownerEvents, stuff->time, &mask, CORE, None, |
| 5183 | None, &status); |
| 5184 | |
| 5185 | if (result != Success) |
| 5186 | return result; |
| 5187 | |
| 5188 | rep = (xGrabKeyboardReply) { |
| 5189 | .type = X_Reply, |
| 5190 | .status = status, |
| 5191 | .sequenceNumber = client->sequence, |
| 5192 | .length = 0 |
| 5193 | }; |
| 5194 | WriteReplyToClient(client, sizeof(xGrabKeyboardReply), &rep); |
| 5195 | return Success; |
| 5196 | } |
| 5197 | |
| 5198 | /** |
| 5199 | * Server-side protocol handling for UngrabKeyboard request. |
| 5200 | * |
| 5201 | * Deletes a possible grab on the client's keyboard. |
| 5202 | */ |
| 5203 | int |
| 5204 | ProcUngrabKeyboard(ClientPtr client) |
| 5205 | { |
| 5206 | DeviceIntPtr device = PickKeyboard(client); |
| 5207 | GrabPtr grab; |
| 5208 | TimeStamp time; |
| 5209 | |
| 5210 | REQUEST(xResourceReq); |
| 5211 | |
| 5212 | REQUEST_SIZE_MATCH(xResourceReq); |
| 5213 | UpdateCurrentTime(); |
| 5214 | |
| 5215 | grab = device->deviceGrab.grab; |
| 5216 | |
| 5217 | time = ClientTimeToServerTime(stuff->id); |
| 5218 | if ((CompareTimeStamps(time, currentTime) != LATER) && |
| 5219 | (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) && |
| 5220 | (grab) && SameClient(grab, client) && grab->grabtype == CORE) |
| 5221 | (*device->deviceGrab.DeactivateGrab) (device); |
| 5222 | return Success; |
| 5223 | } |
| 5224 | |
| 5225 | /** |
| 5226 | * Server-side protocol handling for QueryPointer request. |
| 5227 | * |
| 5228 | * Returns the current state and position of the client's ClientPointer to the |
| 5229 | * client. |
| 5230 | */ |
| 5231 | int |
| 5232 | ProcQueryPointer(ClientPtr client) |
| 5233 | { |
| 5234 | xQueryPointerReply rep; |
| 5235 | WindowPtr pWin, t; |
| 5236 | DeviceIntPtr mouse = PickPointer(client); |
| 5237 | DeviceIntPtr keyboard; |
| 5238 | SpritePtr pSprite; |
| 5239 | int rc; |
| 5240 | |
| 5241 | REQUEST(xResourceReq); |
| 5242 | REQUEST_SIZE_MATCH(xResourceReq); |
| 5243 | |
| 5244 | rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess); |
| 5245 | if (rc != Success) |
| 5246 | return rc; |
| 5247 | rc = XaceHook(XACE_DEVICE_ACCESS, client, mouse, DixReadAccess); |
| 5248 | if (rc != Success && rc != BadAccess) |
| 5249 | return rc; |
| 5250 | |
| 5251 | keyboard = GetMaster(mouse, MASTER_KEYBOARD); |
| 5252 | |
| 5253 | pSprite = mouse->spriteInfo->sprite; |
| 5254 | if (mouse->valuator->motionHintWindow) |
| 5255 | MaybeStopHint(mouse, client); |
| 5256 | rep = (xQueryPointerReply) { |
| 5257 | .type = X_Reply, |
| 5258 | .sequenceNumber = client->sequence, |
| 5259 | .length = 0, |
| 5260 | .mask = event_get_corestate(mouse, keyboard), |
| 5261 | .root = (GetCurrentRootWindow(mouse))->drawable.id, |
| 5262 | .rootX = pSprite->hot.x, |
| 5263 | .rootY = pSprite->hot.y, |
| 5264 | .child = None |
| 5265 | }; |
| 5266 | if (pSprite->hot.pScreen == pWin->drawable.pScreen) { |
| 5267 | rep.sameScreen = xTrue; |
| 5268 | rep.winX = pSprite->hot.x - pWin->drawable.x; |
| 5269 | rep.winY = pSprite->hot.y - pWin->drawable.y; |
| 5270 | for (t = pSprite->win; t; t = t->parent) |
| 5271 | if (t->parent == pWin) { |
| 5272 | rep.child = t->drawable.id; |
| 5273 | break; |
| 5274 | } |
| 5275 | } |
| 5276 | else { |
| 5277 | rep.sameScreen = xFalse; |
| 5278 | rep.winX = 0; |
| 5279 | rep.winY = 0; |
| 5280 | } |
| 5281 | |
| 5282 | #ifdef PANORAMIX |
| 5283 | if (!noPanoramiXExtension) { |
| 5284 | rep.rootX += screenInfo.screens[0]->x; |
| 5285 | rep.rootY += screenInfo.screens[0]->y; |
| 5286 | if (stuff->id == rep.root) { |
| 5287 | rep.winX += screenInfo.screens[0]->x; |
| 5288 | rep.winY += screenInfo.screens[0]->y; |
| 5289 | } |
| 5290 | } |
| 5291 | #endif |
| 5292 | |
| 5293 | if (rc == BadAccess) { |
| 5294 | rep.mask = 0; |
| 5295 | rep.child = None; |
| 5296 | rep.rootX = 0; |
| 5297 | rep.rootY = 0; |
| 5298 | rep.winX = 0; |
| 5299 | rep.winY = 0; |
| 5300 | } |
| 5301 | |
| 5302 | WriteReplyToClient(client, sizeof(xQueryPointerReply), &rep); |
| 5303 | |
| 5304 | return Success; |
| 5305 | } |
| 5306 | |
| 5307 | /** |
| 5308 | * Initializes the device list and the DIX sprite to sane values. Allocates |
| 5309 | * trace memory used for quick window traversal. |
| 5310 | */ |
| 5311 | void |
| 5312 | InitEvents(void) |
| 5313 | { |
| 5314 | int i; |
| 5315 | QdEventPtr qe, tmp; |
| 5316 | |
| 5317 | inputInfo.numDevices = 0; |
| 5318 | inputInfo.devices = (DeviceIntPtr) NULL; |
| 5319 | inputInfo.off_devices = (DeviceIntPtr) NULL; |
| 5320 | inputInfo.keyboard = (DeviceIntPtr) NULL; |
| 5321 | inputInfo.pointer = (DeviceIntPtr) NULL; |
| 5322 | |
| 5323 | for (i = 0; i < MAXDEVICES; i++) { |
| 5324 | DeviceIntRec dummy; |
| 5325 | memcpy(&event_filters[i], default_filter, sizeof(default_filter)); |
| 5326 | |
| 5327 | dummy.id = i; |
| 5328 | NoticeTime(&dummy, currentTime); |
| 5329 | LastEventTimeToggleResetFlag(i, FALSE); |
| 5330 | } |
| 5331 | |
| 5332 | syncEvents.replayDev = (DeviceIntPtr) NULL; |
| 5333 | syncEvents.replayWin = NullWindow; |
| 5334 | if (syncEvents.pending.next) |
| 5335 | xorg_list_for_each_entry_safe(qe, tmp, &syncEvents.pending, next) |
| 5336 | free(qe); |
| 5337 | xorg_list_init(&syncEvents.pending); |
| 5338 | syncEvents.playingEvents = FALSE; |
| 5339 | syncEvents.time.months = 0; |
| 5340 | syncEvents.time.milliseconds = 0; /* hardly matters */ |
| 5341 | currentTime.months = 0; |
| 5342 | currentTime.milliseconds = GetTimeInMillis(); |
| 5343 | for (i = 0; i < DNPMCOUNT; i++) { |
| 5344 | DontPropagateMasks[i] = 0; |
| 5345 | DontPropagateRefCnts[i] = 0; |
| 5346 | } |
| 5347 | |
| 5348 | InputEventList = InitEventList(GetMaximumEventsNum()); |
| 5349 | if (!InputEventList) |
| 5350 | FatalError("[dix] Failed to allocate input event list.\n"); |
| 5351 | } |
| 5352 | |
| 5353 | void |
| 5354 | CloseDownEvents(void) |
| 5355 | { |
| 5356 | FreeEventList(InputEventList, GetMaximumEventsNum()); |
| 5357 | InputEventList = NULL; |
| 5358 | } |
| 5359 | |
| 5360 | #define SEND_EVENT_BIT 0x80 |
| 5361 | |
| 5362 | /** |
| 5363 | * Server-side protocol handling for SendEvent request. |
| 5364 | * |
| 5365 | * Locates the window to send the event to and forwards the event. |
| 5366 | */ |
| 5367 | int |
| 5368 | ProcSendEvent(ClientPtr client) |
| 5369 | { |
| 5370 | WindowPtr pWin; |
| 5371 | WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */ |
| 5372 | DeviceIntPtr dev = PickPointer(client); |
| 5373 | DeviceIntPtr keybd = GetMaster(dev, MASTER_KEYBOARD); |
| 5374 | SpritePtr pSprite = dev->spriteInfo->sprite; |
| 5375 | |
| 5376 | REQUEST(xSendEventReq); |
| 5377 | |
| 5378 | REQUEST_SIZE_MATCH(xSendEventReq); |
| 5379 | |
| 5380 | /* libXext and other extension libraries may set the bit indicating |
| 5381 | * that this event came from a SendEvent request so remove it |
| 5382 | * since otherwise the event type may fail the range checks |
| 5383 | * and cause an invalid BadValue error to be returned. |
| 5384 | * |
| 5385 | * This is safe to do since we later add the SendEvent bit (0x80) |
| 5386 | * back in once we send the event to the client */ |
| 5387 | |
| 5388 | stuff->event.u.u.type &= ~(SEND_EVENT_BIT); |
| 5389 | |
| 5390 | /* The client's event type must be a core event type or one defined by an |
| 5391 | extension. */ |
| 5392 | |
| 5393 | if (!((stuff->event.u.u.type > X_Reply && |
| 5394 | stuff->event.u.u.type < LASTEvent) || |
| 5395 | (stuff->event.u.u.type >= EXTENSION_EVENT_BASE && |
| 5396 | stuff->event.u.u.type < (unsigned) lastEvent))) { |
| 5397 | client->errorValue = stuff->event.u.u.type; |
| 5398 | return BadValue; |
| 5399 | } |
| 5400 | if (stuff->event.u.u.type == ClientMessage && |
| 5401 | stuff->event.u.u.detail != 8 && |
| 5402 | stuff->event.u.u.detail != 16 && stuff->event.u.u.detail != 32) { |
| 5403 | client->errorValue = stuff->event.u.u.detail; |
| 5404 | return BadValue; |
| 5405 | } |
| 5406 | if (stuff->eventMask & ~AllEventMasks) { |
| 5407 | client->errorValue = stuff->eventMask; |
| 5408 | return BadValue; |
| 5409 | } |
| 5410 | |
| 5411 | if (stuff->destination == PointerWindow) |
| 5412 | pWin = pSprite->win; |
| 5413 | else if (stuff->destination == InputFocus) { |
| 5414 | WindowPtr inputFocus = (keybd) ? keybd->focus->win : NoneWin; |
| 5415 | |
| 5416 | if (inputFocus == NoneWin) |
| 5417 | return Success; |
| 5418 | |
| 5419 | /* If the input focus is PointerRootWin, send the event to where |
| 5420 | the pointer is if possible, then perhaps propogate up to root. */ |
| 5421 | if (inputFocus == PointerRootWin) |
| 5422 | inputFocus = GetCurrentRootWindow(dev); |
| 5423 | |
| 5424 | if (IsParent(inputFocus, pSprite->win)) { |
| 5425 | effectiveFocus = inputFocus; |
| 5426 | pWin = pSprite->win; |
| 5427 | } |
| 5428 | else |
| 5429 | effectiveFocus = pWin = inputFocus; |
| 5430 | } |
| 5431 | else |
| 5432 | dixLookupWindow(&pWin, stuff->destination, client, DixSendAccess); |
| 5433 | |
| 5434 | if (!pWin) |
| 5435 | return BadWindow; |
| 5436 | if ((stuff->propagate != xFalse) && (stuff->propagate != xTrue)) { |
| 5437 | client->errorValue = stuff->propagate; |
| 5438 | return BadValue; |
| 5439 | } |
| 5440 | stuff->event.u.u.type |= SEND_EVENT_BIT; |
| 5441 | if (stuff->propagate) { |
| 5442 | for (; pWin; pWin = pWin->parent) { |
| 5443 | if (XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, |
| 5444 | &stuff->event, 1)) |
| 5445 | return Success; |
| 5446 | if (DeliverEventsToWindow(dev, pWin, |
| 5447 | &stuff->event, 1, stuff->eventMask, |
| 5448 | NullGrab)) |
| 5449 | return Success; |
| 5450 | if (pWin == effectiveFocus) |
| 5451 | return Success; |
| 5452 | stuff->eventMask &= ~wDontPropagateMask(pWin); |
| 5453 | if (!stuff->eventMask) |
| 5454 | break; |
| 5455 | } |
| 5456 | } |
| 5457 | else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, &stuff->event, 1)) |
| 5458 | DeliverEventsToWindow(dev, pWin, &stuff->event, |
| 5459 | 1, stuff->eventMask, NullGrab); |
| 5460 | return Success; |
| 5461 | } |
| 5462 | |
| 5463 | /** |
| 5464 | * Server-side protocol handling for UngrabKey request. |
| 5465 | * |
| 5466 | * Deletes a passive grab for the given key. Works on the |
| 5467 | * client's keyboard. |
| 5468 | */ |
| 5469 | int |
| 5470 | ProcUngrabKey(ClientPtr client) |
| 5471 | { |
| 5472 | REQUEST(xUngrabKeyReq); |
| 5473 | WindowPtr pWin; |
| 5474 | GrabPtr tempGrab; |
| 5475 | DeviceIntPtr keybd = PickKeyboard(client); |
| 5476 | int rc; |
| 5477 | |
| 5478 | REQUEST_SIZE_MATCH(xUngrabKeyReq); |
| 5479 | rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixGetAttrAccess); |
| 5480 | if (rc != Success) |
| 5481 | return rc; |
| 5482 | |
| 5483 | if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) || |
| 5484 | (stuff->key < keybd->key->xkbInfo->desc->min_key_code)) |
| 5485 | && (stuff->key != AnyKey)) { |
| 5486 | client->errorValue = stuff->key; |
| 5487 | return BadValue; |
| 5488 | } |
| 5489 | if ((stuff->modifiers != AnyModifier) && |
| 5490 | (stuff->modifiers & ~AllModifiersMask)) { |
| 5491 | client->errorValue = stuff->modifiers; |
| 5492 | return BadValue; |
| 5493 | } |
| 5494 | tempGrab = AllocGrab(NULL); |
| 5495 | if (!tempGrab) |
| 5496 | return BadAlloc; |
| 5497 | tempGrab->resource = client->clientAsMask; |
| 5498 | tempGrab->device = keybd; |
| 5499 | tempGrab->window = pWin; |
| 5500 | tempGrab->modifiersDetail.exact = stuff->modifiers; |
| 5501 | tempGrab->modifiersDetail.pMask = NULL; |
| 5502 | tempGrab->modifierDevice = keybd; |
| 5503 | tempGrab->type = KeyPress; |
| 5504 | tempGrab->grabtype = CORE; |
| 5505 | tempGrab->detail.exact = stuff->key; |
| 5506 | tempGrab->detail.pMask = NULL; |
| 5507 | tempGrab->next = NULL; |
| 5508 | |
| 5509 | if (!DeletePassiveGrabFromList(tempGrab)) |
| 5510 | rc = BadAlloc; |
| 5511 | |
| 5512 | FreeGrab(tempGrab); |
| 5513 | |
| 5514 | return rc; |
| 5515 | } |
| 5516 | |
| 5517 | /** |
| 5518 | * Server-side protocol handling for GrabKey request. |
| 5519 | * |
| 5520 | * Creates a grab for the client's keyboard and adds it to the list of passive |
| 5521 | * grabs. |
| 5522 | */ |
| 5523 | int |
| 5524 | ProcGrabKey(ClientPtr client) |
| 5525 | { |
| 5526 | WindowPtr pWin; |
| 5527 | |
| 5528 | REQUEST(xGrabKeyReq); |
| 5529 | GrabPtr grab; |
| 5530 | DeviceIntPtr keybd = PickKeyboard(client); |
| 5531 | int rc; |
| 5532 | GrabParameters param; |
| 5533 | GrabMask mask; |
| 5534 | |
| 5535 | REQUEST_SIZE_MATCH(xGrabKeyReq); |
| 5536 | |
| 5537 | param = (GrabParameters) { |
| 5538 | .grabtype = CORE, |
| 5539 | .ownerEvents = stuff->ownerEvents, |
| 5540 | .this_device_mode = stuff->keyboardMode, |
| 5541 | .other_devices_mode = stuff->pointerMode, |
| 5542 | .modifiers = stuff->modifiers |
| 5543 | }; |
| 5544 | |
| 5545 | rc = CheckGrabValues(client, ¶m); |
| 5546 | if (rc != Success) |
| 5547 | return rc; |
| 5548 | |
| 5549 | if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) || |
| 5550 | (stuff->key < keybd->key->xkbInfo->desc->min_key_code)) |
| 5551 | && (stuff->key != AnyKey)) { |
| 5552 | client->errorValue = stuff->key; |
| 5553 | return BadValue; |
| 5554 | } |
| 5555 | rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess); |
| 5556 | if (rc != Success) |
| 5557 | return rc; |
| 5558 | |
| 5559 | mask.core = (KeyPressMask | KeyReleaseMask); |
| 5560 | |
| 5561 | grab = CreateGrab(client->index, keybd, keybd, pWin, CORE, &mask, |
| 5562 | ¶m, KeyPress, stuff->key, NullWindow, NullCursor); |
| 5563 | if (!grab) |
| 5564 | return BadAlloc; |
| 5565 | return AddPassiveGrabToList(client, grab); |
| 5566 | } |
| 5567 | |
| 5568 | /** |
| 5569 | * Server-side protocol handling for GrabButton request. |
| 5570 | * |
| 5571 | * Creates a grab for the client's ClientPointer and adds it as a passive grab |
| 5572 | * to the list. |
| 5573 | */ |
| 5574 | int |
| 5575 | ProcGrabButton(ClientPtr client) |
| 5576 | { |
| 5577 | WindowPtr pWin, confineTo; |
| 5578 | |
| 5579 | REQUEST(xGrabButtonReq); |
| 5580 | CursorPtr cursor; |
| 5581 | GrabPtr grab; |
| 5582 | DeviceIntPtr ptr, modifierDevice; |
| 5583 | Mask access_mode = DixGrabAccess; |
| 5584 | GrabMask mask; |
| 5585 | GrabParameters param; |
| 5586 | int rc; |
| 5587 | |
| 5588 | REQUEST_SIZE_MATCH(xGrabButtonReq); |
| 5589 | if ((stuff->pointerMode != GrabModeSync) && |
| 5590 | (stuff->pointerMode != GrabModeAsync)) { |
| 5591 | client->errorValue = stuff->pointerMode; |
| 5592 | return BadValue; |
| 5593 | } |
| 5594 | if ((stuff->keyboardMode != GrabModeSync) && |
| 5595 | (stuff->keyboardMode != GrabModeAsync)) { |
| 5596 | client->errorValue = stuff->keyboardMode; |
| 5597 | return BadValue; |
| 5598 | } |
| 5599 | if ((stuff->modifiers != AnyModifier) && |
| 5600 | (stuff->modifiers & ~AllModifiersMask)) { |
| 5601 | client->errorValue = stuff->modifiers; |
| 5602 | return BadValue; |
| 5603 | } |
| 5604 | if ((stuff->ownerEvents != xFalse) && (stuff->ownerEvents != xTrue)) { |
| 5605 | client->errorValue = stuff->ownerEvents; |
| 5606 | return BadValue; |
| 5607 | } |
| 5608 | if (stuff->eventMask & ~PointerGrabMask) { |
| 5609 | client->errorValue = stuff->eventMask; |
| 5610 | return BadValue; |
| 5611 | } |
| 5612 | rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess); |
| 5613 | if (rc != Success) |
| 5614 | return rc; |
| 5615 | if (stuff->confineTo == None) |
| 5616 | confineTo = NullWindow; |
| 5617 | else { |
| 5618 | rc = dixLookupWindow(&confineTo, stuff->confineTo, client, |
| 5619 | DixSetAttrAccess); |
| 5620 | if (rc != Success) |
| 5621 | return rc; |
| 5622 | } |
| 5623 | if (stuff->cursor == None) |
| 5624 | cursor = NullCursor; |
| 5625 | else { |
| 5626 | rc = dixLookupResourceByType((pointer *) &cursor, stuff->cursor, |
| 5627 | RT_CURSOR, client, DixUseAccess); |
| 5628 | if (rc != Success) { |
| 5629 | client->errorValue = stuff->cursor; |
| 5630 | return rc; |
| 5631 | } |
| 5632 | access_mode |= DixForceAccess; |
| 5633 | } |
| 5634 | |
| 5635 | ptr = PickPointer(client); |
| 5636 | modifierDevice = GetMaster(ptr, MASTER_KEYBOARD); |
| 5637 | if (stuff->pointerMode == GrabModeSync || |
| 5638 | stuff->keyboardMode == GrabModeSync) |
| 5639 | access_mode |= DixFreezeAccess; |
| 5640 | rc = XaceHook(XACE_DEVICE_ACCESS, client, ptr, access_mode); |
| 5641 | if (rc != Success) |
| 5642 | return rc; |
| 5643 | |
| 5644 | param = (GrabParameters) { |
| 5645 | .grabtype = CORE, |
| 5646 | .ownerEvents = stuff->ownerEvents, |
| 5647 | .this_device_mode = stuff->keyboardMode, |
| 5648 | .other_devices_mode = stuff->pointerMode, |
| 5649 | .modifiers = stuff->modifiers |
| 5650 | }; |
| 5651 | |
| 5652 | mask.core = stuff->eventMask; |
| 5653 | |
| 5654 | grab = CreateGrab(client->index, ptr, modifierDevice, pWin, |
| 5655 | CORE, &mask, ¶m, ButtonPress, |
| 5656 | stuff->button, confineTo, cursor); |
| 5657 | if (!grab) |
| 5658 | return BadAlloc; |
| 5659 | return AddPassiveGrabToList(client, grab); |
| 5660 | } |
| 5661 | |
| 5662 | /** |
| 5663 | * Server-side protocol handling for UngrabButton request. |
| 5664 | * |
| 5665 | * Deletes a passive grab on the client's ClientPointer from the list. |
| 5666 | */ |
| 5667 | int |
| 5668 | ProcUngrabButton(ClientPtr client) |
| 5669 | { |
| 5670 | REQUEST(xUngrabButtonReq); |
| 5671 | WindowPtr pWin; |
| 5672 | GrabPtr tempGrab; |
| 5673 | int rc; |
| 5674 | DeviceIntPtr ptr; |
| 5675 | |
| 5676 | REQUEST_SIZE_MATCH(xUngrabButtonReq); |
| 5677 | if ((stuff->modifiers != AnyModifier) && |
| 5678 | (stuff->modifiers & ~AllModifiersMask)) { |
| 5679 | client->errorValue = stuff->modifiers; |
| 5680 | return BadValue; |
| 5681 | } |
| 5682 | rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixReadAccess); |
| 5683 | if (rc != Success) |
| 5684 | return rc; |
| 5685 | |
| 5686 | ptr = PickPointer(client); |
| 5687 | |
| 5688 | tempGrab = AllocGrab(NULL); |
| 5689 | if (!tempGrab) |
| 5690 | return BadAlloc; |
| 5691 | tempGrab->resource = client->clientAsMask; |
| 5692 | tempGrab->device = ptr; |
| 5693 | tempGrab->window = pWin; |
| 5694 | tempGrab->modifiersDetail.exact = stuff->modifiers; |
| 5695 | tempGrab->modifiersDetail.pMask = NULL; |
| 5696 | tempGrab->modifierDevice = GetMaster(ptr, MASTER_KEYBOARD); |
| 5697 | tempGrab->type = ButtonPress; |
| 5698 | tempGrab->detail.exact = stuff->button; |
| 5699 | tempGrab->grabtype = CORE; |
| 5700 | tempGrab->detail.pMask = NULL; |
| 5701 | tempGrab->next = NULL; |
| 5702 | |
| 5703 | if (!DeletePassiveGrabFromList(tempGrab)) |
| 5704 | rc = BadAlloc; |
| 5705 | |
| 5706 | FreeGrab(tempGrab); |
| 5707 | return rc; |
| 5708 | } |
| 5709 | |
| 5710 | /** |
| 5711 | * Deactivate any grab that may be on the window, remove the focus. |
| 5712 | * Delete any XInput extension events from the window too. Does not change the |
| 5713 | * window mask. Use just before the window is deleted. |
| 5714 | * |
| 5715 | * If freeResources is set, passive grabs on the window are deleted. |
| 5716 | * |
| 5717 | * @param pWin The window to delete events from. |
| 5718 | * @param freeResources True if resources associated with the window should be |
| 5719 | * deleted. |
| 5720 | */ |
| 5721 | void |
| 5722 | DeleteWindowFromAnyEvents(WindowPtr pWin, Bool freeResources) |
| 5723 | { |
| 5724 | WindowPtr parent; |
| 5725 | DeviceIntPtr mouse = inputInfo.pointer; |
| 5726 | DeviceIntPtr keybd = inputInfo.keyboard; |
| 5727 | FocusClassPtr focus; |
| 5728 | OtherClientsPtr oc; |
| 5729 | GrabPtr passive; |
| 5730 | GrabPtr grab; |
| 5731 | |
| 5732 | /* Deactivate any grabs performed on this window, before making any |
| 5733 | input focus changes. */ |
| 5734 | grab = mouse->deviceGrab.grab; |
| 5735 | if (grab && ((grab->window == pWin) || (grab->confineTo == pWin))) |
| 5736 | (*mouse->deviceGrab.DeactivateGrab) (mouse); |
| 5737 | |
| 5738 | /* Deactivating a keyboard grab should cause focus events. */ |
| 5739 | grab = keybd->deviceGrab.grab; |
| 5740 | if (grab && (grab->window == pWin)) |
| 5741 | (*keybd->deviceGrab.DeactivateGrab) (keybd); |
| 5742 | |
| 5743 | /* And now the real devices */ |
| 5744 | for (mouse = inputInfo.devices; mouse; mouse = mouse->next) { |
| 5745 | grab = mouse->deviceGrab.grab; |
| 5746 | if (grab && ((grab->window == pWin) || (grab->confineTo == pWin))) |
| 5747 | (*mouse->deviceGrab.DeactivateGrab) (mouse); |
| 5748 | } |
| 5749 | |
| 5750 | for (keybd = inputInfo.devices; keybd; keybd = keybd->next) { |
| 5751 | if (IsKeyboardDevice(keybd)) { |
| 5752 | focus = keybd->focus; |
| 5753 | |
| 5754 | /* If the focus window is a root window (ie. has no parent) |
| 5755 | then don't delete the focus from it. */ |
| 5756 | |
| 5757 | if ((pWin == focus->win) && (pWin->parent != NullWindow)) { |
| 5758 | int focusEventMode = NotifyNormal; |
| 5759 | |
| 5760 | /* If a grab is in progress, then alter the mode of focus events. */ |
| 5761 | |
| 5762 | if (keybd->deviceGrab.grab) |
| 5763 | focusEventMode = NotifyWhileGrabbed; |
| 5764 | |
| 5765 | switch (focus->revert) { |
| 5766 | case RevertToNone: |
| 5767 | DoFocusEvents(keybd, pWin, NoneWin, focusEventMode); |
| 5768 | focus->win = NoneWin; |
| 5769 | focus->traceGood = 0; |
| 5770 | break; |
| 5771 | case RevertToParent: |
| 5772 | parent = pWin; |
| 5773 | do { |
| 5774 | parent = parent->parent; |
| 5775 | focus->traceGood--; |
| 5776 | } while (!parent->realized |
| 5777 | /* This would be a good protocol change -- windows being |
| 5778 | reparented during SaveSet processing would cause the |
| 5779 | focus to revert to the nearest enclosing window which |
| 5780 | will survive the death of the exiting client, instead |
| 5781 | of ending up reverting to a dying window and thence |
| 5782 | to None */ |
| 5783 | #ifdef NOTDEF |
| 5784 | || wClient(parent)->clientGone |
| 5785 | #endif |
| 5786 | ); |
| 5787 | if (!ActivateFocusInGrab(keybd, pWin, parent)) |
| 5788 | DoFocusEvents(keybd, pWin, parent, focusEventMode); |
| 5789 | focus->win = parent; |
| 5790 | focus->revert = RevertToNone; |
| 5791 | break; |
| 5792 | case RevertToPointerRoot: |
| 5793 | if (!ActivateFocusInGrab(keybd, pWin, PointerRootWin)) |
| 5794 | DoFocusEvents(keybd, pWin, PointerRootWin, |
| 5795 | focusEventMode); |
| 5796 | focus->win = PointerRootWin; |
| 5797 | focus->traceGood = 0; |
| 5798 | break; |
| 5799 | } |
| 5800 | } |
| 5801 | } |
| 5802 | |
| 5803 | if (IsPointerDevice(keybd)) { |
| 5804 | if (keybd->valuator->motionHintWindow == pWin) |
| 5805 | keybd->valuator->motionHintWindow = NullWindow; |
| 5806 | } |
| 5807 | } |
| 5808 | |
| 5809 | if (freeResources) { |
| 5810 | if (pWin->dontPropagate) |
| 5811 | DontPropagateRefCnts[pWin->dontPropagate]--; |
| 5812 | while ((oc = wOtherClients(pWin))) |
| 5813 | FreeResource(oc->resource, RT_NONE); |
| 5814 | while ((passive = wPassiveGrabs(pWin))) |
| 5815 | FreeResource(passive->resource, RT_NONE); |
| 5816 | } |
| 5817 | |
| 5818 | DeleteWindowFromAnyExtEvents(pWin, freeResources); |
| 5819 | } |
| 5820 | |
| 5821 | /** |
| 5822 | * Call this whenever some window at or below pWin has changed geometry. If |
| 5823 | * there is a grab on the window, the cursor will be re-confined into the |
| 5824 | * window. |
| 5825 | */ |
| 5826 | void |
| 5827 | CheckCursorConfinement(WindowPtr pWin) |
| 5828 | { |
| 5829 | GrabPtr grab; |
| 5830 | WindowPtr confineTo; |
| 5831 | DeviceIntPtr pDev; |
| 5832 | |
| 5833 | #ifdef PANORAMIX |
| 5834 | if (!noPanoramiXExtension && pWin->drawable.pScreen->myNum) |
| 5835 | return; |
| 5836 | #endif |
| 5837 | |
| 5838 | for (pDev = inputInfo.devices; pDev; pDev = pDev->next) { |
| 5839 | if (DevHasCursor(pDev)) { |
| 5840 | grab = pDev->deviceGrab.grab; |
| 5841 | if (grab && (confineTo = grab->confineTo)) { |
| 5842 | if (!BorderSizeNotEmpty(pDev, confineTo)) |
| 5843 | (*pDev->deviceGrab.DeactivateGrab) (pDev); |
| 5844 | else if ((pWin == confineTo) || IsParent(pWin, confineTo)) |
| 5845 | ConfineCursorToWindow(pDev, confineTo, TRUE, TRUE); |
| 5846 | } |
| 5847 | } |
| 5848 | } |
| 5849 | } |
| 5850 | |
| 5851 | Mask |
| 5852 | EventMaskForClient(WindowPtr pWin, ClientPtr client) |
| 5853 | { |
| 5854 | OtherClientsPtr other; |
| 5855 | |
| 5856 | if (wClient(pWin) == client) |
| 5857 | return pWin->eventMask; |
| 5858 | for (other = wOtherClients(pWin); other; other = other->next) { |
| 5859 | if (SameClient(other, client)) |
| 5860 | return other->mask; |
| 5861 | } |
| 5862 | return 0; |
| 5863 | } |
| 5864 | |
| 5865 | /** |
| 5866 | * Server-side protocol handling for RecolorCursor request. |
| 5867 | */ |
| 5868 | int |
| 5869 | ProcRecolorCursor(ClientPtr client) |
| 5870 | { |
| 5871 | CursorPtr pCursor; |
| 5872 | int rc, nscr; |
| 5873 | ScreenPtr pscr; |
| 5874 | Bool displayed; |
| 5875 | SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite; |
| 5876 | |
| 5877 | REQUEST(xRecolorCursorReq); |
| 5878 | |
| 5879 | REQUEST_SIZE_MATCH(xRecolorCursorReq); |
| 5880 | rc = dixLookupResourceByType((pointer *) &pCursor, stuff->cursor, RT_CURSOR, |
| 5881 | client, DixWriteAccess); |
| 5882 | if (rc != Success) { |
| 5883 | client->errorValue = stuff->cursor; |
| 5884 | return rc; |
| 5885 | } |
| 5886 | |
| 5887 | pCursor->foreRed = stuff->foreRed; |
| 5888 | pCursor->foreGreen = stuff->foreGreen; |
| 5889 | pCursor->foreBlue = stuff->foreBlue; |
| 5890 | |
| 5891 | pCursor->backRed = stuff->backRed; |
| 5892 | pCursor->backGreen = stuff->backGreen; |
| 5893 | pCursor->backBlue = stuff->backBlue; |
| 5894 | |
| 5895 | for (nscr = 0; nscr < screenInfo.numScreens; nscr++) { |
| 5896 | pscr = screenInfo.screens[nscr]; |
| 5897 | #ifdef PANORAMIX |
| 5898 | if (!noPanoramiXExtension) |
| 5899 | displayed = (pscr == pSprite->screen); |
| 5900 | else |
| 5901 | #endif |
| 5902 | displayed = (pscr == pSprite->hotPhys.pScreen); |
| 5903 | (*pscr->RecolorCursor) (PickPointer(client), pscr, pCursor, |
| 5904 | (pCursor == pSprite->current) && displayed); |
| 5905 | } |
| 5906 | return Success; |
| 5907 | } |
| 5908 | |
| 5909 | /** |
| 5910 | * Write the given events to a client, swapping the byte order if necessary. |
| 5911 | * To swap the byte ordering, a callback is called that has to be set up for |
| 5912 | * the given event type. |
| 5913 | * |
| 5914 | * In the case of DeviceMotionNotify trailed by DeviceValuators, the events |
| 5915 | * can be more than one. Usually it's just one event. |
| 5916 | * |
| 5917 | * Do not modify the event structure passed in. See comment below. |
| 5918 | * |
| 5919 | * @param pClient Client to send events to. |
| 5920 | * @param count Number of events. |
| 5921 | * @param events The event list. |
| 5922 | */ |
| 5923 | void |
| 5924 | WriteEventsToClient(ClientPtr pClient, int count, xEvent *events) |
| 5925 | { |
| 5926 | #ifdef PANORAMIX |
| 5927 | xEvent eventCopy; |
| 5928 | #endif |
| 5929 | xEvent *eventTo, *eventFrom; |
| 5930 | int i, eventlength = sizeof(xEvent); |
| 5931 | |
| 5932 | if (!pClient || pClient == serverClient || pClient->clientGone) |
| 5933 | return; |
| 5934 | |
| 5935 | for (i = 0; i < count; i++) |
| 5936 | if ((events[i].u.u.type & 0x7f) != KeymapNotify) |
| 5937 | events[i].u.u.sequenceNumber = pClient->sequence; |
| 5938 | |
| 5939 | /* Let XKB rewrite the state, as it depends on client preferences. */ |
| 5940 | XkbFilterEvents(pClient, count, events); |
| 5941 | |
| 5942 | #ifdef PANORAMIX |
| 5943 | if (!noPanoramiXExtension && |
| 5944 | (screenInfo.screens[0]->x || screenInfo.screens[0]->y)) { |
| 5945 | switch (events->u.u.type) { |
| 5946 | case MotionNotify: |
| 5947 | case ButtonPress: |
| 5948 | case ButtonRelease: |
| 5949 | case KeyPress: |
| 5950 | case KeyRelease: |
| 5951 | case EnterNotify: |
| 5952 | case LeaveNotify: |
| 5953 | /* |
| 5954 | When multiple clients want the same event DeliverEventsToWindow |
| 5955 | passes the same event structure multiple times so we can't |
| 5956 | modify the one passed to us |
| 5957 | */ |
| 5958 | count = 1; /* should always be 1 */ |
| 5959 | memcpy(&eventCopy, events, sizeof(xEvent)); |
| 5960 | eventCopy.u.keyButtonPointer.rootX += screenInfo.screens[0]->x; |
| 5961 | eventCopy.u.keyButtonPointer.rootY += screenInfo.screens[0]->y; |
| 5962 | if (eventCopy.u.keyButtonPointer.event == |
| 5963 | eventCopy.u.keyButtonPointer.root) { |
| 5964 | eventCopy.u.keyButtonPointer.eventX += screenInfo.screens[0]->x; |
| 5965 | eventCopy.u.keyButtonPointer.eventY += screenInfo.screens[0]->y; |
| 5966 | } |
| 5967 | events = &eventCopy; |
| 5968 | break; |
| 5969 | default: |
| 5970 | break; |
| 5971 | } |
| 5972 | } |
| 5973 | #endif |
| 5974 | |
| 5975 | if (EventCallback) { |
| 5976 | EventInfoRec eventinfo; |
| 5977 | |
| 5978 | eventinfo.client = pClient; |
| 5979 | eventinfo.events = events; |
| 5980 | eventinfo.count = count; |
| 5981 | CallCallbacks(&EventCallback, (pointer) &eventinfo); |
| 5982 | } |
| 5983 | #ifdef XSERVER_DTRACE |
| 5984 | if (XSERVER_SEND_EVENT_ENABLED()) { |
| 5985 | for (i = 0; i < count; i++) { |
| 5986 | XSERVER_SEND_EVENT(pClient->index, events[i].u.u.type, &events[i]); |
| 5987 | } |
| 5988 | } |
| 5989 | #endif |
| 5990 | /* Just a safety check to make sure we only have one GenericEvent, it just |
| 5991 | * makes things easier for me right now. (whot) */ |
| 5992 | for (i = 1; i < count; i++) { |
| 5993 | if (events[i].u.u.type == GenericEvent) { |
| 5994 | ErrorF("[dix] TryClientEvents: Only one GenericEvent at a time.\n"); |
| 5995 | return; |
| 5996 | } |
| 5997 | } |
| 5998 | |
| 5999 | if (events->u.u.type == GenericEvent) { |
| 6000 | eventlength += ((xGenericEvent *) events)->length * 4; |
| 6001 | } |
| 6002 | |
| 6003 | if (pClient->swapped) { |
| 6004 | if (eventlength > swapEventLen) { |
| 6005 | swapEventLen = eventlength; |
| 6006 | swapEvent = realloc(swapEvent, swapEventLen); |
| 6007 | if (!swapEvent) { |
| 6008 | FatalError("WriteEventsToClient: Out of memory.\n"); |
| 6009 | return; |
| 6010 | } |
| 6011 | } |
| 6012 | |
| 6013 | for (i = 0; i < count; i++) { |
| 6014 | eventFrom = &events[i]; |
| 6015 | eventTo = swapEvent; |
| 6016 | |
| 6017 | /* Remember to strip off the leading bit of type in case |
| 6018 | this event was sent with "SendEvent." */ |
| 6019 | (*EventSwapVector[eventFrom->u.u.type & 0177]) |
| 6020 | (eventFrom, eventTo); |
| 6021 | |
| 6022 | WriteToClient(pClient, eventlength, eventTo); |
| 6023 | } |
| 6024 | } |
| 6025 | else { |
| 6026 | /* only one GenericEvent, remember? that means either count is 1 and |
| 6027 | * eventlength is arbitrary or eventlength is 32 and count doesn't |
| 6028 | * matter. And we're all set. Woohoo. */ |
| 6029 | WriteToClient(pClient, count * eventlength, events); |
| 6030 | } |
| 6031 | } |
| 6032 | |
| 6033 | /* |
| 6034 | * Set the client pointer for the given client. |
| 6035 | * |
| 6036 | * A client can have exactly one ClientPointer. Each time a |
| 6037 | * request/reply/event is processed and the choice of devices is ambiguous |
| 6038 | * (e.g. QueryPointer request), the server will pick the ClientPointer (see |
| 6039 | * PickPointer()). |
| 6040 | * If a keyboard is needed, the first keyboard paired with the CP is used. |
| 6041 | */ |
| 6042 | int |
| 6043 | SetClientPointer(ClientPtr client, DeviceIntPtr device) |
| 6044 | { |
| 6045 | int rc = XaceHook(XACE_DEVICE_ACCESS, client, device, DixUseAccess); |
| 6046 | |
| 6047 | if (rc != Success) |
| 6048 | return rc; |
| 6049 | |
| 6050 | if (!IsMaster(device)) { |
| 6051 | ErrorF("[dix] Need master device for ClientPointer. This is a bug.\n"); |
| 6052 | return BadDevice; |
| 6053 | } |
| 6054 | else if (!device->spriteInfo->spriteOwner) { |
| 6055 | ErrorF("[dix] Device %d does not have a sprite. " |
| 6056 | "Cannot be ClientPointer\n", device->id); |
| 6057 | return BadDevice; |
| 6058 | } |
| 6059 | client->clientPtr = device; |
| 6060 | return Success; |
| 6061 | } |
| 6062 | |
| 6063 | /* PickPointer will pick an appropriate pointer for the given client. |
| 6064 | * |
| 6065 | * An "appropriate device" is (in order of priority): |
| 6066 | * 1) A device the given client has a core grab on. |
| 6067 | * 2) A device set as ClientPointer for the given client. |
| 6068 | * 3) The first master device. |
| 6069 | */ |
| 6070 | DeviceIntPtr |
| 6071 | PickPointer(ClientPtr client) |
| 6072 | { |
| 6073 | DeviceIntPtr it = inputInfo.devices; |
| 6074 | |
| 6075 | /* First, check if the client currently has a grab on a device. Even |
| 6076 | * keyboards count. */ |
| 6077 | for (it = inputInfo.devices; it; it = it->next) { |
| 6078 | GrabPtr grab = it->deviceGrab.grab; |
| 6079 | |
| 6080 | if (grab && grab->grabtype == CORE && SameClient(grab, client)) { |
| 6081 | it = GetMaster(it, MASTER_POINTER); |
| 6082 | return it; /* Always return a core grabbed device */ |
| 6083 | } |
| 6084 | } |
| 6085 | |
| 6086 | if (!client->clientPtr) { |
| 6087 | it = inputInfo.devices; |
| 6088 | while (it) { |
| 6089 | if (IsMaster(it) && it->spriteInfo->spriteOwner) { |
| 6090 | client->clientPtr = it; |
| 6091 | break; |
| 6092 | } |
| 6093 | it = it->next; |
| 6094 | } |
| 6095 | } |
| 6096 | return client->clientPtr; |
| 6097 | } |
| 6098 | |
| 6099 | /* PickKeyboard will pick an appropriate keyboard for the given client by |
| 6100 | * searching the list of devices for the keyboard device that is paired with |
| 6101 | * the client's pointer. |
| 6102 | */ |
| 6103 | DeviceIntPtr |
| 6104 | PickKeyboard(ClientPtr client) |
| 6105 | { |
| 6106 | DeviceIntPtr ptr = PickPointer(client); |
| 6107 | DeviceIntPtr kbd = GetMaster(ptr, MASTER_KEYBOARD); |
| 6108 | |
| 6109 | if (!kbd) { |
| 6110 | ErrorF("[dix] ClientPointer not paired with a keyboard. This " |
| 6111 | "is a bug.\n"); |
| 6112 | } |
| 6113 | |
| 6114 | return kbd; |
| 6115 | } |
| 6116 | |
| 6117 | /* A client that has one or more core grabs does not get core events from |
| 6118 | * devices it does not have a grab on. Legacy applications behave bad |
| 6119 | * otherwise because they are not used to it and the events interfere. |
| 6120 | * Only applies for core events. |
| 6121 | * |
| 6122 | * Return true if a core event from the device would interfere and should not |
| 6123 | * be delivered. |
| 6124 | */ |
| 6125 | Bool |
| 6126 | IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent *event) |
| 6127 | { |
| 6128 | DeviceIntPtr it = inputInfo.devices; |
| 6129 | |
| 6130 | switch (event->u.u.type) { |
| 6131 | case KeyPress: |
| 6132 | case KeyRelease: |
| 6133 | case ButtonPress: |
| 6134 | case ButtonRelease: |
| 6135 | case MotionNotify: |
| 6136 | case EnterNotify: |
| 6137 | case LeaveNotify: |
| 6138 | break; |
| 6139 | default: |
| 6140 | return FALSE; |
| 6141 | } |
| 6142 | |
| 6143 | if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client)) |
| 6144 | return FALSE; |
| 6145 | |
| 6146 | while (it) { |
| 6147 | if (it != dev) { |
| 6148 | if (it->deviceGrab.grab && SameClient(it->deviceGrab.grab, client) |
| 6149 | && !it->deviceGrab.fromPassiveGrab) { |
| 6150 | if ((IsPointerDevice(it) && IsPointerDevice(dev)) || |
| 6151 | (IsKeyboardDevice(it) && IsKeyboardDevice(dev))) |
| 6152 | return TRUE; |
| 6153 | } |
| 6154 | } |
| 6155 | it = it->next; |
| 6156 | } |
| 6157 | |
| 6158 | return FALSE; |
| 6159 | } |
| 6160 | |
| 6161 | /* PointerBarrier events are only delivered to the client that created that |
| 6162 | * barrier */ |
| 6163 | static Bool |
| 6164 | IsWrongPointerBarrierClient(ClientPtr client, DeviceIntPtr dev, xEvent *event) |
| 6165 | { |
| 6166 | xXIBarrierEvent *ev = (xXIBarrierEvent*)event; |
| 6167 | |
| 6168 | if (ev->type != GenericEvent || ev->extension != IReqCode) |
| 6169 | return FALSE; |
| 6170 | |
| 6171 | if (ev->evtype != XI_BarrierHit && ev->evtype != XI_BarrierLeave) |
| 6172 | return FALSE; |
| 6173 | |
| 6174 | return client->index != CLIENT_ID(ev->barrier); |
| 6175 | } |