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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 | } |