xserver git update 15/5/2010

1 files changed, 5912 insertions, 5912 deletions

diff --git a/xorg-server/dix/events.c b/xorg-server/dix/events.c
index f96fe1ce4..a537730a9 100644
--- a/xorg-server/dix/events.c
+++ b/xorg-server/dix/events.c
@@ -1,5912 +1,5912 @@
-/************************************************************
-
-Copyright 1987, 1998  The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-********************************************************/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
-IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-/*
- * Copyright © 2003-2005 Sun Microsystems, Inc.  All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/** @file events.c
- * This file handles event delivery and a big part of the server-side protocol
- * handling (the parts for input devices).
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "misc.h"
-#include "resource.h"
-#include <X11/Xproto.h>
-#include "windowstr.h"
-#include "inputstr.h"
-#include "scrnintstr.h"
-#include "cursorstr.h"
-
-#include "dixstruct.h"
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-#include "globals.h"
-
-#include <X11/extensions/XKBproto.h>
-#include "xkbsrv.h"
-#include "xace.h"
-
-#ifdef XSERVER_DTRACE
-#include <sys/types.h>
-typedef const char *string;
-#include "Xserver-dtrace.h"
-#endif
-
-#include <X11/extensions/XIproto.h>
-#include <X11/extensions/XI2proto.h>
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XI2.h>
-#include "exglobals.h"
-#include "exevents.h"
-#include "exglobals.h"
-#include "extnsionst.h"
-
-#include "dixevents.h"
-#include "dixgrabs.h"
-#include "dispatch.h"
-
-#include <X11/extensions/ge.h>
-#include "geext.h"
-#include "geint.h"
-
-#include "eventstr.h"
-#include "enterleave.h"
-#include "eventconvert.h"
-
-/* Extension events type numbering starts at EXTENSION_EVENT_BASE.  */
-#define NoSuchEvent 0x80000000	/* so doesn't match NoEventMask */
-#define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask )
-#define AllButtonsMask ( \
-	Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )
-#define MotionMask ( \
-	PointerMotionMask | Button1MotionMask | \
-	Button2MotionMask | Button3MotionMask | Button4MotionMask | \
-	Button5MotionMask | ButtonMotionMask )
-#define PropagateMask ( \
-	KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | \
-	MotionMask )
-#define PointerGrabMask ( \
-	ButtonPressMask | ButtonReleaseMask | \
-	EnterWindowMask | LeaveWindowMask | \
-	PointerMotionHintMask | KeymapStateMask | \
-	MotionMask )
-#define AllModifiersMask ( \
-	ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
-	Mod3Mask | Mod4Mask | Mod5Mask )
-#define LastEventMask OwnerGrabButtonMask
-#define AllEventMasks (LastEventMask|(LastEventMask-1))
-
-
-#define CORE_EVENT(event) \
-    (!((event)->u.u.type & EXTENSION_EVENT_BASE) && \
-      (event)->u.u.type != GenericEvent)
-#define XI2_EVENT(event) \
-    (((event)->u.u.type == GenericEvent) && \
-    ((xGenericEvent*)(event))->extension == IReqCode)
-
-/**
- * Used to indicate a implicit passive grab created by a ButtonPress event.
- * See DeliverEventsToWindow().
- */
-#define ImplicitGrabMask (1 << 7)
-
-#define WID(w) ((w) ? ((w)->drawable.id) : 0)
-
-#define XE_KBPTR (xE->u.keyButtonPointer)
-
-
-#define rClient(obj) (clients[CLIENT_ID((obj)->resource)])
-
-CallbackListPtr EventCallback;
-CallbackListPtr DeviceEventCallback;
-
-#define DNPMCOUNT 8
-
-Mask DontPropagateMasks[DNPMCOUNT];
-static int DontPropagateRefCnts[DNPMCOUNT];
-
-static void CheckVirtualMotion( DeviceIntPtr pDev, QdEventPtr qe, WindowPtr pWin);
-static void CheckPhysLimits(DeviceIntPtr pDev,
-                            CursorPtr cursor,
-                            Bool generateEvents,
-                            Bool confineToScreen,
-                            ScreenPtr pScreen);
-static Bool CheckPassiveGrabsOnWindow(WindowPtr pWin,
-                                      DeviceIntPtr device,
-                                      DeviceEvent *event,
-                                      BOOL checkCore);
-
-/** Key repeat hack. Do not use but in TryClientEvents */
-extern BOOL EventIsKeyRepeat(xEvent *event);
-
-/**
- * Main input device struct.
- *     inputInfo.pointer
- *     is the core pointer. Referred to as "virtual core pointer", "VCP",
- *     "core pointer" or inputInfo.pointer. The VCP is the first master
- *     pointer device and cannot be deleted.
- *
- *     inputInfo.keyboard
- *     is the core keyboard ("virtual core keyboard", "VCK", "core keyboard").
- *     See inputInfo.pointer.
- *
- *     inputInfo.devices
- *     linked list containing all devices including VCP and VCK.
- *
- *     inputInfo.off_devices
- *     Devices that have not been initialized and are thus turned off.
- *
- *     inputInfo.numDevices
- *     Total number of devices.
- *
- *     inputInfo.all_devices
- *     Virtual device used for XIAllDevices passive grabs. This device is
- *     not part of the inputInfo.devices list and mostly unset except for
- *     the deviceid. It exists because passivegrabs need a valid device
- *     reference.
- *
- *     inputInfo.all_master_devices
- *     Virtual device used for XIAllMasterDevices passive grabs. This device
- *     is not part of the inputInfo.devices list and mostly unset except for
- *     the deviceid. It exists because passivegrabs need a valid device
- *     reference.
- */
-InputInfo inputInfo;
-
-EventSyncInfoRec syncEvents;
-
-/**
- * The root window the given device is currently on.
- */
-#define RootWindow(dev) dev->spriteInfo->sprite->spriteTrace[0]
-
-static xEvent* swapEvent = NULL;
-static int swapEventLen = 0;
-
-void
-NotImplemented(xEvent *from, xEvent *to)
-{
-    FatalError("Not implemented");
-}
-
-/**
- * Convert the given event type from an XI event to a core event.
- * @param[in] The XI 1.x event type.
- * @return The matching core event type or 0 if there is none.
- */
-int
-XItoCoreType(int xitype)
-{
-    int coretype = 0;
-    if (xitype == DeviceMotionNotify)
-        coretype = MotionNotify;
-    else if (xitype == DeviceButtonPress)
-        coretype = ButtonPress;
-    else if (xitype == DeviceButtonRelease)
-        coretype = ButtonRelease;
-    else if (xitype == DeviceKeyPress)
-        coretype = KeyPress;
-    else if (xitype == DeviceKeyRelease)
-        coretype = KeyRelease;
-
-    return coretype;
-}
-
-/**
- * @return true if the device owns a cursor, false if device shares a cursor
- * sprite with another device.
- */
-Bool
-DevHasCursor(DeviceIntPtr pDev)
-{
-    return pDev->spriteInfo->spriteOwner;
-}
-
-/*
- * @return true if a device is a pointer, check is the same as used by XI to
- * fill the 'use' field.
- */
-Bool
-IsPointerDevice(DeviceIntPtr dev)
-{
-    return (dev->type == MASTER_POINTER) ||
-            (dev->valuator && dev->button) ||
-            (dev->valuator && !dev->key);
-}
-
-/*
- * @return true if a device is a keyboard, check is the same as used by XI to
- * fill the 'use' field.
- *
- * Some pointer devices have keys as well (e.g. multimedia keys). Try to not
- * count them as keyboard devices.
- */
-Bool
-IsKeyboardDevice(DeviceIntPtr dev)
-{
-    return (dev->type == MASTER_KEYBOARD) ||
-            ((dev->key && dev->kbdfeed) && !IsPointerDevice(dev));
-}
-
-Bool
-IsMaster(DeviceIntPtr dev)
-{
-    return (dev->type == MASTER_POINTER || dev->type == MASTER_KEYBOARD);
-}
-
-static WindowPtr XYToWindow(
-    DeviceIntPtr pDev,
-    int x,
-    int y
-);
-
-/**
- * Max event opcode.
- */
-extern int lastEvent;
-
-extern int DeviceMotionNotify;
-
-#define CantBeFiltered NoEventMask
-/**
- * Event masks for each event type.
- *
- * One set of filters for each device, but only the first layer
- * is initialized. The rest is memcpy'd in InitEvents.
- *
- * Filters are used whether a given event may be delivered to a client,
- * usually in the form of if (window-event-mask & filter); then deliver event.
- *
- * One notable filter is for PointerMotion/DevicePointerMotion events. Each
- * time a button is pressed, the filter is modified to also contain the
- * matching ButtonXMotion mask.
- */
-static Mask filters[MAXDEVICES][128] = {
-{
-	NoSuchEvent,		       /* 0 */
-	NoSuchEvent,		       /* 1 */
-	KeyPressMask,		       /* KeyPress */
-	KeyReleaseMask,		       /* KeyRelease */
-	ButtonPressMask,	       /* ButtonPress */
-	ButtonReleaseMask,	       /* ButtonRelease */
-	PointerMotionMask,	       /* MotionNotify (initial state) */
-	EnterWindowMask,	       /* EnterNotify */
-	LeaveWindowMask,	       /* LeaveNotify */
-	FocusChangeMask,	       /* FocusIn */
-	FocusChangeMask,	       /* FocusOut */
-	KeymapStateMask,	       /* KeymapNotify */
-	ExposureMask,		       /* Expose */
-	CantBeFiltered,		       /* GraphicsExpose */
-	CantBeFiltered,		       /* NoExpose */
-	VisibilityChangeMask,	       /* VisibilityNotify */
-	SubstructureNotifyMask,	       /* CreateNotify */
-	StructureAndSubMask,	       /* DestroyNotify */
-	StructureAndSubMask,	       /* UnmapNotify */
-	StructureAndSubMask,	       /* MapNotify */
-	SubstructureRedirectMask,      /* MapRequest */
-	StructureAndSubMask,	       /* ReparentNotify */
-	StructureAndSubMask,	       /* ConfigureNotify */
-	SubstructureRedirectMask,      /* ConfigureRequest */
-	StructureAndSubMask,	       /* GravityNotify */
-	ResizeRedirectMask,	       /* ResizeRequest */
-	StructureAndSubMask,	       /* CirculateNotify */
-	SubstructureRedirectMask,      /* CirculateRequest */
-	PropertyChangeMask,	       /* PropertyNotify */
-	CantBeFiltered,		       /* SelectionClear */
-	CantBeFiltered,		       /* SelectionRequest */
-	CantBeFiltered,		       /* SelectionNotify */
-	ColormapChangeMask,	       /* ColormapNotify */
-	CantBeFiltered,		       /* ClientMessage */
-	CantBeFiltered		       /* MappingNotify */
-}};
-
-/**
- * For the given event, return the matching event filter. This filter may then
- * be AND'ed with the selected event mask.
- *
- * For XI2 events, the returned filter is simply the byte containing the event
- * mask we're interested in. E.g. for a mask of (1 << 13), this would be
- * byte[1].
- *
- * @param[in] dev The device the event belongs to, may be NULL.
- * @param[in] event The event to get the filter for. Only the type of the
- *                  event matters, or the extension + evtype for GenericEvents.
- * @return The filter mask for the given event.
- *
- * @see GetEventMask
- */
-Mask
-GetEventFilter(DeviceIntPtr dev, xEvent *event)
-{
-    if (event->u.u.type != GenericEvent)
-        return filters[dev ? dev->id : 0][event->u.u.type];
-    else if (XI2_EVENT(event))
-        return (1 << (((xXIDeviceEvent*)event)->evtype % 8));
-    ErrorF("[dix] Unknown device type %d. No filter\n", event->u.u.type);
-    return 0;
-}
-
-/**
- * Return the windows complete XI2 mask for the given XI2 event type.
- */
-Mask
-GetWindowXI2Mask(DeviceIntPtr dev, WindowPtr win, xEvent* ev)
-{
-    OtherInputMasks *inputMasks = wOtherInputMasks(win);
-    int filter;
-    int evtype;
-
-    if (!inputMasks || !XI2_EVENT(ev))
-        return 0;
-
-    evtype = ((xGenericEvent*)ev)->evtype;
-    filter = GetEventFilter(dev, ev);
-
-    return ((inputMasks->xi2mask[dev->id][evtype/8] & filter) ||
-            inputMasks->xi2mask[XIAllDevices][evtype/8] ||
-            (inputMasks->xi2mask[XIAllMasterDevices][evtype/8] && IsMaster(dev)));
-}
-
-static Mask
-GetEventMask(DeviceIntPtr dev, xEvent *event, InputClients* other)
-{
-    /* XI2 filters are only ever 8 bit, so let's return a 8 bit mask */
-    if (XI2_EVENT(event))
-    {
-        int byte = ((xGenericEvent*)event)->evtype / 8;
-        return (other->xi2mask[dev->id][byte] |
-                other->xi2mask[XIAllDevices][byte] |
-                (IsMaster(dev)? other->xi2mask[XIAllMasterDevices][byte] : 0));
-    } else if (CORE_EVENT(event))
-        return other->mask[XIAllDevices];
-    else
-        return other->mask[dev->id];
-}
-
-
-static CARD8 criticalEvents[32] =
-{
-    0x7c, 0x30, 0x40			/* key, button, expose, and configure events */
-};
-
-static void
-SyntheticMotion(DeviceIntPtr dev, int x, int y) {
-    int screenno = 0;
-
-#ifdef PANORAMIX
-    if (!noPanoramiXExtension)
-        screenno = dev->spriteInfo->sprite->screen->myNum;
-#endif
-    PostSyntheticMotion(dev, x, y, screenno,
-            (syncEvents.playingEvents) ?  syncEvents.time.milliseconds : currentTime.milliseconds);
-
-}
-
-#ifdef PANORAMIX
-static void PostNewCursor(DeviceIntPtr pDev);
-
-static Bool
-XineramaSetCursorPosition(
-    DeviceIntPtr pDev,
-    int x,
-    int y,
-    Bool generateEvent
-){
-    ScreenPtr pScreen;
-    BoxRec box;
-    int i;
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    /* x,y are in Screen 0 coordinates.  We need to decide what Screen
-       to send the message too and what the coordinates relative to
-       that screen are. */
-
-    pScreen = pSprite->screen;
-    x += panoramiXdataPtr[0].x;
-    y += panoramiXdataPtr[0].y;
-
-    if(!POINT_IN_REGION(pScreen, &XineramaScreenRegions[pScreen->myNum],
-								x, y, &box))
-    {
-	FOR_NSCREENS(i)
-	{
-	    if(i == pScreen->myNum)
-		continue;
-	    if(POINT_IN_REGION(pScreen, &XineramaScreenRegions[i], x, y, &box))
-	    {
-		pScreen = screenInfo.screens[i];
-		break;
-	    }
-	}
-    }
-
-    pSprite->screen = pScreen;
-    pSprite->hotPhys.x = x - panoramiXdataPtr[0].x;
-    pSprite->hotPhys.y = y - panoramiXdataPtr[0].y;
-    x -= panoramiXdataPtr[pScreen->myNum].x;
-    y -= panoramiXdataPtr[pScreen->myNum].y;
-
-    return (*pScreen->SetCursorPosition)(pDev, pScreen, x, y, generateEvent);
-}
-
-
-static void
-XineramaConstrainCursor(DeviceIntPtr pDev)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-    ScreenPtr pScreen;
-    BoxRec newBox;
-
-    pScreen = pSprite->screen;
-    newBox = pSprite->physLimits;
-
-    /* Translate the constraining box to the screen
-       the sprite is actually on */
-    newBox.x1 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
-    newBox.x2 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
-    newBox.y1 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
-    newBox.y2 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
-
-    (* pScreen->ConstrainCursor)(pDev, pScreen, &newBox);
-}
-
-
-static Bool
-XineramaSetWindowPntrs(DeviceIntPtr pDev, WindowPtr pWin)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    if(pWin == WindowTable[0]) {
-	    memcpy(pSprite->windows, WindowTable,
-				PanoramiXNumScreens*sizeof(WindowPtr));
-    } else {
-	PanoramiXRes *win;
-	int rc, i;
-
-	rc = dixLookupResourceByType((pointer *)&win, pWin->drawable.id,
-				     XRT_WINDOW, serverClient, DixReadAccess);
-	if (rc != Success)
-	    return FALSE;
-
-	for(i = 0; i < PanoramiXNumScreens; i++) {
-	    rc = dixLookupWindow(pSprite->windows + i, win->info[i].id,
-				 serverClient, DixReadAccess);
-	    if (rc != Success)  /* window is being unmapped */
-		return FALSE;
-	}
-    }
-    return TRUE;
-}
-
-static void
-XineramaConfineCursorToWindow(DeviceIntPtr pDev,
-                              WindowPtr pWin,
-                              Bool generateEvents)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    int x, y, off_x, off_y, i;
-
-    if(!XineramaSetWindowPntrs(pDev, pWin))
-        return;
-
-    i = PanoramiXNumScreens - 1;
-
-    REGION_COPY(pSprite->screen, &pSprite->Reg1,
-            &pSprite->windows[i]->borderSize);
-    off_x = panoramiXdataPtr[i].x;
-    off_y = panoramiXdataPtr[i].y;
-
-    while(i--) {
-        x = off_x - panoramiXdataPtr[i].x;
-        y = off_y - panoramiXdataPtr[i].y;
-
-        if(x || y)
-            REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, x, y);
-
-        REGION_UNION(pSprite->screen, &pSprite->Reg1, &pSprite->Reg1,
-                &pSprite->windows[i]->borderSize);
-
-        off_x = panoramiXdataPtr[i].x;
-        off_y = panoramiXdataPtr[i].y;
-    }
-
-    pSprite->hotLimits = *REGION_EXTENTS(pSprite->screen, &pSprite->Reg1);
-
-    if(REGION_NUM_RECTS(&pSprite->Reg1) > 1)
-        pSprite->hotShape = &pSprite->Reg1;
-    else
-        pSprite->hotShape = NullRegion;
-
-    pSprite->confined = FALSE;
-    pSprite->confineWin = (pWin == WindowTable[0]) ? NullWindow : pWin;
-
-    CheckPhysLimits(pDev, pSprite->current, generateEvents, FALSE, NULL);
-}
-
-#endif  /* PANORAMIX */
-
-/**
- * Modifies the filter for the given protocol event type to the given masks.
- *
- * There's only two callers: UpdateDeviceState() and XI's SetMaskForExtEvent().
- * The latter initialises masks for the matching XI events, it's a once-off
- * setting.
- * UDS however changes the mask for MotionNotify and DeviceMotionNotify each
- * time a button is pressed to include the matching ButtonXMotion mask in the
- * filter.
- *
- * @param[in] deviceid The device to modify the filter for.
- * @param[in] mask The new filter mask.
- * @param[in] event Protocol event type.
- */
-void
-SetMaskForEvent(int deviceid, Mask mask, int event)
-{
-    if (deviceid < 0 || deviceid >= MAXDEVICES)
-        FatalError("SetMaskForEvent: bogus device id");
-    filters[deviceid][event] = mask;
-}
-
-void
-SetCriticalEvent(int event)
-{
-    if (event >= 128)
-	FatalError("SetCriticalEvent: bogus event number");
-    criticalEvents[event >> 3] |= 1 << (event & 7);
-}
-
-void
-ConfineToShape(DeviceIntPtr pDev, RegionPtr shape, int *px, int *py)
-{
-    BoxRec box;
-    int x = *px, y = *py;
-    int incx = 1, incy = 1;
-    SpritePtr pSprite;
-
-    pSprite = pDev->spriteInfo->sprite;
-    if (POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box))
-	return;
-    box = *REGION_EXTENTS(pSprite->hot.pScreen, shape);
-    /* this is rather crude */
-    do {
-	x += incx;
-	if (x >= box.x2)
-	{
-	    incx = -1;
-	    x = *px - 1;
-	}
-	else if (x < box.x1)
-	{
-	    incx = 1;
-	    x = *px;
-	    y += incy;
-	    if (y >= box.y2)
-	    {
-		incy = -1;
-		y = *py - 1;
-	    }
-	    else if (y < box.y1)
-		return; /* should never get here! */
-	}
-    } while (!POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box));
-    *px = x;
-    *py = y;
-}
-
-static void
-CheckPhysLimits(
-    DeviceIntPtr pDev,
-    CursorPtr cursor,
-    Bool generateEvents,
-    Bool confineToScreen, /* unused if PanoramiX on */
-    ScreenPtr pScreen)    /* unused if PanoramiX on */
-{
-    HotSpot new;
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    if (!cursor)
-	return;
-    new = pSprite->hotPhys;
-#ifdef PANORAMIX
-    if (!noPanoramiXExtension)
-        /* I don't care what the DDX has to say about it */
-        pSprite->physLimits = pSprite->hotLimits;
-    else
-#endif
-    {
-        if (pScreen)
-            new.pScreen = pScreen;
-        else
-            pScreen = new.pScreen;
-        (*pScreen->CursorLimits) (pDev, pScreen, cursor, &pSprite->hotLimits,
-                &pSprite->physLimits);
-        pSprite->confined = confineToScreen;
-        (* pScreen->ConstrainCursor)(pDev, pScreen, &pSprite->physLimits);
-    }
-
-    /* constrain the pointer to those limits */
-    if (new.x < pSprite->physLimits.x1)
-	new.x = pSprite->physLimits.x1;
-    else
-	if (new.x >= pSprite->physLimits.x2)
-	    new.x = pSprite->physLimits.x2 - 1;
-    if (new.y < pSprite->physLimits.y1)
-	new.y = pSprite->physLimits.y1;
-    else
-	if (new.y >= pSprite->physLimits.y2)
-	    new.y = pSprite->physLimits.y2 - 1;
-    if (pSprite->hotShape)
-	ConfineToShape(pDev, pSprite->hotShape, &new.x, &new.y);
-    if ((
-#ifdef PANORAMIX
-            noPanoramiXExtension &&
-#endif
-            (pScreen != pSprite->hotPhys.pScreen)) ||
-	(new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y))
-    {
-#ifdef PANORAMIX
-        if (!noPanoramiXExtension)
-            XineramaSetCursorPosition (pDev, new.x, new.y, generateEvents);
-        else
-#endif
-        {
-            if (pScreen != pSprite->hotPhys.pScreen)
-                pSprite->hotPhys = new;
-            (*pScreen->SetCursorPosition)
-                (pDev, pScreen, new.x, new.y, generateEvents);
-        }
-        if (!generateEvents)
-            SyntheticMotion(pDev, new.x, new.y);
-    }
-
-#ifdef PANORAMIX
-    /* Tell DDX what the limits are */
-    if (!noPanoramiXExtension)
-        XineramaConstrainCursor(pDev);
-#endif
-}
-
-static void
-CheckVirtualMotion(
-    DeviceIntPtr pDev,
-    QdEventPtr qe,
-    WindowPtr pWin)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-    RegionPtr reg = NULL;
-    DeviceEvent *ev = NULL;
-
-    if (qe)
-    {
-        ev = &qe->event->device_event;
-        switch(ev->type)
-        {
-            case ET_Motion:
-            case ET_ButtonPress:
-            case ET_ButtonRelease:
-            case ET_KeyPress:
-            case ET_KeyRelease:
-            case ET_ProximityIn:
-            case ET_ProximityOut:
-                pSprite->hot.pScreen = qe->pScreen;
-                pSprite->hot.x = ev->root_x;
-                pSprite->hot.y = ev->root_y;
-                pWin = pDev->deviceGrab.grab ? pDev->deviceGrab.grab->confineTo : NullWindow;
-                break;
-            default:
-                break;
-        }
-    }
-    if (pWin)
-    {
-	BoxRec lims;
-
-#ifdef PANORAMIX
-        if (!noPanoramiXExtension) {
-            int x, y, off_x, off_y, i;
-
-            if(!XineramaSetWindowPntrs(pDev, pWin))
-                return;
-
-            i = PanoramiXNumScreens - 1;
-
-            REGION_COPY(pSprite->screen, &pSprite->Reg2,
-                    &pSprite->windows[i]->borderSize);
-            off_x = panoramiXdataPtr[i].x;
-            off_y = panoramiXdataPtr[i].y;
-
-            while(i--) {
-                x = off_x - panoramiXdataPtr[i].x;
-                y = off_y - panoramiXdataPtr[i].y;
-
-                if(x || y)
-                    REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, x, y);
-
-                REGION_UNION(pSprite->screen, &pSprite->Reg2, &pSprite->Reg2,
-                        &pSprite->windows[i]->borderSize);
-
-                off_x = panoramiXdataPtr[i].x;
-                off_y = panoramiXdataPtr[i].y;
-            }
-        } else
-#endif
-        {
-            if (pSprite->hot.pScreen != pWin->drawable.pScreen)
-            {
-                pSprite->hot.pScreen = pWin->drawable.pScreen;
-                pSprite->hot.x = pSprite->hot.y = 0;
-            }
-        }
-
-	lims = *REGION_EXTENTS(pWin->drawable.pScreen, &pWin->borderSize);
-	if (pSprite->hot.x < lims.x1)
-	    pSprite->hot.x = lims.x1;
-	else if (pSprite->hot.x >= lims.x2)
-	    pSprite->hot.x = lims.x2 - 1;
-	if (pSprite->hot.y < lims.y1)
-	    pSprite->hot.y = lims.y1;
-	else if (pSprite->hot.y >= lims.y2)
-	    pSprite->hot.y = lims.y2 - 1;
-
-#ifdef PANORAMIX
-        if (!noPanoramiXExtension)
-        {
-            if (REGION_NUM_RECTS(&pSprite->Reg2) > 1)
-                reg = &pSprite->Reg2;
-
-        } else
-#endif
-        {
-            if (wBoundingShape(pWin))
-                reg = &pWin->borderSize;
-        }
-
-        if (reg)
-            ConfineToShape(pDev, reg, &pSprite->hot.x, &pSprite->hot.y);
-
-	if (qe && ev)
-	{
-	    qe->pScreen = pSprite->hot.pScreen;
-	    ev->root_x = pSprite->hot.x;
-	    ev->root_y = pSprite->hot.y;
-	}
-    }
-#ifdef PANORAMIX
-    if (noPanoramiXExtension) /* No typo. Only set the root win if disabled */
-#endif
-        RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
-}
-
-static void
-ConfineCursorToWindow(DeviceIntPtr pDev, WindowPtr pWin, Bool generateEvents, Bool confineToScreen)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    if (syncEvents.playingEvents)
-    {
-	CheckVirtualMotion(pDev, (QdEventPtr)NULL, pWin);
-	SyntheticMotion(pDev, pSprite->hot.x, pSprite->hot.y);
-    }
-    else
-    {
-#ifdef PANORAMIX
-        if(!noPanoramiXExtension) {
-            XineramaConfineCursorToWindow(pDev, pWin, generateEvents);
-            return;
-        }
-#endif
-	pSprite->hotLimits = *REGION_EXTENTS( pScreen, &pWin->borderSize);
-	pSprite->hotShape = wBoundingShape(pWin) ? &pWin->borderSize
-					       : NullRegion;
-        CheckPhysLimits(pDev, pSprite->current, generateEvents,
-                        confineToScreen, pScreen);
-    }
-}
-
-Bool
-PointerConfinedToScreen(DeviceIntPtr pDev)
-{
-    return pDev->spriteInfo->sprite->confined;
-}
-
-/**
- * Update the sprite cursor to the given cursor.
- *
- * ChangeToCursor() will display the new cursor and free the old cursor (if
- * applicable). If the provided cursor is already the updated cursor, nothing
- * happens.
- */
-static void
-ChangeToCursor(DeviceIntPtr pDev, CursorPtr cursor)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-    ScreenPtr pScreen;
-
-    if (cursor != pSprite->current)
-    {
-	if ((pSprite->current->bits->xhot != cursor->bits->xhot) ||
-		(pSprite->current->bits->yhot != cursor->bits->yhot))
-	    CheckPhysLimits(pDev, cursor, FALSE, pSprite->confined,
-			    (ScreenPtr)NULL);
-#ifdef PANORAMIX
-        /* XXX: is this really necessary?? (whot) */
-        if (!noPanoramiXExtension)
-            pScreen = pSprite->screen;
-        else
-#endif
-            pScreen = pSprite->hotPhys.pScreen;
-
-        (*pScreen->DisplayCursor)(pDev, pScreen, cursor);
-	FreeCursor(pSprite->current, (Cursor)0);
-	pSprite->current = cursor;
-	pSprite->current->refcnt++;
-    }
-}
-
-/**
- * @returns true if b is a descendent of a
- */
-Bool
-IsParent(WindowPtr a, WindowPtr b)
-{
-    for (b = b->parent; b; b = b->parent)
-	if (b == a) return TRUE;
-    return FALSE;
-}
-
-/**
- * Update the cursor displayed on the screen.
- *
- * Called whenever a cursor may have changed shape or position.
- */
-static void
-PostNewCursor(DeviceIntPtr pDev)
-{
-    WindowPtr win;
-    GrabPtr grab = pDev->deviceGrab.grab;
-    SpritePtr   pSprite = pDev->spriteInfo->sprite;
-    CursorPtr   pCursor;
-
-    if (syncEvents.playingEvents)
-	return;
-    if (grab)
-    {
-	if (grab->cursor)
-	{
-	    ChangeToCursor(pDev, grab->cursor);
-	    return;
-	}
-	if (IsParent(grab->window, pSprite->win))
-	    win = pSprite->win;
-	else
-	    win = grab->window;
-    }
-    else
-	win = pSprite->win;
-    for (; win; win = win->parent)
-    {
-	if (win->optional)
-        {
-            pCursor = WindowGetDeviceCursor(win, pDev);
-            if (!pCursor && win->optional->cursor != NullCursor)
-                pCursor = win->optional->cursor;
-            if (pCursor)
-            {
-                ChangeToCursor(pDev, pCursor);
-                return;
-            }
-	}
-    }
-}
-
-
-/**
- * @param dev device which you want to know its current root window
- * @return root window where dev's sprite is located
- */
-WindowPtr
-GetCurrentRootWindow(DeviceIntPtr dev)
-{
-    return RootWindow(dev);
-}
-
-/**
- * @return window underneath the cursor sprite.
- */
-WindowPtr
-GetSpriteWindow(DeviceIntPtr pDev)
-{
-    return pDev->spriteInfo->sprite->win;
-}
-
-/**
- * @return current sprite cursor.
- */
-CursorPtr
-GetSpriteCursor(DeviceIntPtr pDev)
-{
-    return pDev->spriteInfo->sprite->current;
-}
-
-/**
- * Set x/y current sprite position in screen coordinates.
- */
-void
-GetSpritePosition(DeviceIntPtr pDev, int *px, int *py)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-    *px = pSprite->hotPhys.x;
-    *py = pSprite->hotPhys.y;
-}
-
-#ifdef PANORAMIX
-int
-XineramaGetCursorScreen(DeviceIntPtr pDev)
-{
-    if(!noPanoramiXExtension) {
-	return pDev->spriteInfo->sprite->screen->myNum;
-    } else {
-	return 0;
-    }
-}
-#endif /* PANORAMIX */
-
-#define TIMESLOP (5 * 60 * 1000) /* 5 minutes */
-
-static void
-MonthChangedOrBadTime(InternalEvent *ev)
-{
-    /* If the ddx/OS is careless about not processing timestamped events from
-     * different sources in sorted order, then it's possible for time to go
-     * backwards when it should not.  Here we ensure a decent time.
-     */
-    if ((currentTime.milliseconds - ev->any.time) > TIMESLOP)
-	currentTime.months++;
-    else
-        ev->any.time = currentTime.milliseconds;
-}
-
-static void
-NoticeTime(InternalEvent *ev)
-{
-    if (ev->any.time < currentTime.milliseconds)
-        MonthChangedOrBadTime(ev);
-    currentTime.milliseconds = ev->any.time;
-    lastDeviceEventTime = currentTime;
-}
-
-void
-NoticeEventTime(InternalEvent *ev)
-{
-    if (!syncEvents.playingEvents)
-	NoticeTime(ev);
-}
-
-/**************************************************************************
- *            The following procedures deal with synchronous events       *
- **************************************************************************/
-
-/**
- * EnqueueEvent is a device's processInputProc if a device is frozen.
- * Instead of delivering the events to the client, the event is tacked onto a
- * linked list for later delivery.
- */
-void
-EnqueueEvent(InternalEvent *ev, DeviceIntPtr device)
-{
-    QdEventPtr	tail = *syncEvents.pendtail;
-    QdEventPtr	qe;
-    SpritePtr	pSprite = device->spriteInfo->sprite;
-    int		eventlen;
-    DeviceEvent *event = &ev->device_event;
-
-    NoticeTime((InternalEvent*)event);
-
-    /* Fix for key repeating bug. */
-    if (device->key != NULL && device->key->xkbInfo != NULL &&
-        event->type == ET_KeyRelease)
-	AccessXCancelRepeatKey(device->key->xkbInfo, event->detail.key);
-
-    if (DeviceEventCallback)
-    {
-	DeviceEventInfoRec eventinfo;
-
-	/*  The RECORD spec says that the root window field of motion events
-	 *  must be valid.  At this point, it hasn't been filled in yet, so
-	 *  we do it here.  The long expression below is necessary to get
-	 *  the current root window; the apparently reasonable alternative
-	 *  GetCurrentRootWindow()->drawable.id doesn't give you the right
-	 *  answer on the first motion event after a screen change because
-	 *  the data that GetCurrentRootWindow relies on hasn't been
-	 *  updated yet.
-	 */
-	if (ev->any.type == ET_Motion)
-	    ev->device_event.root = WindowTable[pSprite->hotPhys.pScreen->myNum]->drawable.id;
-
-	eventinfo.event = ev;
-	eventinfo.device = device;
-	CallCallbacks(&DeviceEventCallback, (pointer)&eventinfo);
-    }
-
-    if (event->type == ET_Motion)
-    {
-#ifdef PANORAMIX
-	if(!noPanoramiXExtension) {
-            event->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
-			      panoramiXdataPtr[0].x;
-	    event->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
-			      panoramiXdataPtr[0].y;
-	}
-#endif
-	pSprite->hotPhys.x = event->root_x;
-	pSprite->hotPhys.y = event->root_y;
-	/* do motion compression, but not if from different devices */
-	if (tail &&
-	    (tail->event->any.type == ET_Motion) &&
-            (tail->device == device) &&
-	    (tail->pScreen == pSprite->hotPhys.pScreen))
-	{
-            DeviceEvent *tailev = &tail->event->device_event;
-	    tailev->root_x = pSprite->hotPhys.x;
-	    tailev->root_y = pSprite->hotPhys.y;
-	    tailev->time = event->time;
-	    tail->months = currentTime.months;
-	    return;
-	}
-    }
-
-    eventlen = event->length;
-
-    qe = xalloc(sizeof(QdEventRec) + eventlen);
-    if (!qe)
-	return;
-    qe->next = (QdEventPtr)NULL;
-    qe->device = device;
-    qe->pScreen = pSprite->hotPhys.pScreen;
-    qe->months = currentTime.months;
-    qe->event = (InternalEvent *)(qe + 1);
-    memcpy(qe->event, event, eventlen);
-    if (tail)
-	syncEvents.pendtail = &tail->next;
-    *syncEvents.pendtail = qe;
-}
-
-/**
- * Run through the list of events queued up in syncEvents.
- * For each event do:
- * If the device for this event is not frozen anymore, take it and process it
- * as usually.
- * After that, check if there's any devices in the list that are not frozen.
- * If there is none, we're done. If there is at least one device that is not
- * frozen, then re-run from the beginning of the event queue.
- */
-static void
-PlayReleasedEvents(void)
-{
-    QdEventPtr *prev, qe;
-    DeviceIntPtr dev;
-    DeviceIntPtr pDev;
-
-    prev = &syncEvents.pending;
-    while ( (qe = *prev) )
-    {
-	if (!qe->device->deviceGrab.sync.frozen)
-	{
-	    *prev = qe->next;
-            pDev = qe->device;
-	    if (*syncEvents.pendtail == *prev)
-		syncEvents.pendtail = prev;
-	    if (qe->event->any.type == ET_Motion)
-		CheckVirtualMotion(pDev, qe, NullWindow);
-	    syncEvents.time.months = qe->months;
-            syncEvents.time.milliseconds = qe->event->any.time;
-#ifdef PANORAMIX
-	   /* Translate back to the sprite screen since processInputProc
-	      will translate from sprite screen to screen 0 upon reentry
-	      to the DIX layer */
-	    if(!noPanoramiXExtension) {
-                DeviceEvent *ev = &qe->event->device_event;
-                switch(ev->type)
-                {
-                    case ET_Motion:
-                    case ET_ButtonPress:
-                    case ET_ButtonRelease:
-                    case ET_KeyPress:
-                    case ET_KeyRelease:
-                    case ET_ProximityIn:
-                    case ET_ProximityOut:
-                        ev->root_x += panoramiXdataPtr[0].x -
-                            panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].x;
-                        ev->root_y += panoramiXdataPtr[0].y -
-                            panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].y;
-                        break;
-                    default:
-                        break;
-                }
-
-	    }
-#endif
-	    (*qe->device->public.processInputProc)(qe->event, qe->device);
-	    xfree(qe);
-	    for (dev = inputInfo.devices; dev && dev->deviceGrab.sync.frozen; dev = dev->next)
-		;
-	    if (!dev)
-		break;
-	    /* Playing the event may have unfrozen another device. */
-	    /* So to play it safe, restart at the head of the queue */
-	    prev = &syncEvents.pending;
-	}
-	else
-	    prev = &qe->next;
-    }
-}
-
-/**
- * Freeze or thaw the given devices. The device's processing proc is
- * switched to either the real processing proc (in case of thawing) or an
- * enqueuing processing proc (usually EnqueueEvent()).
- *
- * @param dev The device to freeze/thaw
- * @param frozen True to freeze or false to thaw.
- */
-static void
-FreezeThaw(DeviceIntPtr dev, Bool frozen)
-{
-    dev->deviceGrab.sync.frozen = frozen;
-    if (frozen)
-	dev->public.processInputProc = dev->public.enqueueInputProc;
-    else
-	dev->public.processInputProc = dev->public.realInputProc;
-}
-
-/**
- * Unfreeze devices and replay all events to the respective clients.
- *
- * ComputeFreezes takes the first event in the device's frozen event queue. It
- * runs up the sprite tree (spriteTrace) and searches for the window to replay
- * the events from. If it is found, it checks for passive grabs one down from
- * the window or delivers the events.
- */
-static void
-ComputeFreezes(void)
-{
-    DeviceIntPtr replayDev = syncEvents.replayDev;
-    int i;
-    WindowPtr w;
-    GrabPtr grab;
-    DeviceIntPtr dev;
-
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-	FreezeThaw(dev, dev->deviceGrab.sync.other ||
-                (dev->deviceGrab.sync.state >= FROZEN));
-    if (syncEvents.playingEvents || (!replayDev && !syncEvents.pending))
-	return;
-    syncEvents.playingEvents = TRUE;
-    if (replayDev)
-    {
-        DeviceEvent* event = replayDev->deviceGrab.sync.event;
-
-	syncEvents.replayDev = (DeviceIntPtr)NULL;
-
-        w = XYToWindow(replayDev, event->root_x, event->root_y);
-	for (i = 0; i < replayDev->spriteInfo->sprite->spriteTraceGood; i++)
-	{
-	    if (syncEvents.replayWin ==
-		replayDev->spriteInfo->sprite->spriteTrace[i])
-	    {
-		if (!CheckDeviceGrabs(replayDev, event, i+1)) {
-		    if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
-			DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
-		    else
-			DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
-                                            NullWindow, replayDev);
-		}
-		goto playmore;
-	    }
-	}
-	/* must not still be in the same stack */
-	if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
-	    DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
-	else
-	    DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
-                                NullWindow, replayDev);
-    }
-playmore:
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-	if (!dev->deviceGrab.sync.frozen)
-	{
-	    PlayReleasedEvents();
-	    break;
-	}
-    }
-    syncEvents.playingEvents = FALSE;
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-        if (DevHasCursor(dev))
-        {
-            /* the following may have been skipped during replay,
-              so do it now */
-            if ((grab = dev->deviceGrab.grab) && grab->confineTo)
-            {
-                if (grab->confineTo->drawable.pScreen !=
-                        dev->spriteInfo->sprite->hotPhys.pScreen)
-                    dev->spriteInfo->sprite->hotPhys.x =
-                        dev->spriteInfo->sprite->hotPhys.y = 0;
-                ConfineCursorToWindow(dev, grab->confineTo, TRUE, TRUE);
-            }
-            else
-                ConfineCursorToWindow(dev,
-                        WindowTable[dev->spriteInfo->sprite->hotPhys.pScreen->myNum],
-                        TRUE, FALSE);
-            PostNewCursor(dev);
-        }
-    }
-}
-
-#ifdef RANDR
-void
-ScreenRestructured (ScreenPtr pScreen)
-{
-    GrabPtr grab;
-    DeviceIntPtr pDev;
-
-    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
-    {
-        if (!DevHasCursor(pDev))
-            continue;
-
-        /* GrabDevice doesn't have a confineTo field, so we don't need to
-         * worry about it. */
-        if ((grab = pDev->deviceGrab.grab) && grab->confineTo)
-        {
-            if (grab->confineTo->drawable.pScreen
-                    != pDev->spriteInfo->sprite->hotPhys.pScreen)
-                pDev->spriteInfo->sprite->hotPhys.x = pDev->spriteInfo->sprite->hotPhys.y = 0;
-            ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
-        }
-        else
-            ConfineCursorToWindow(pDev,
-                    WindowTable[pDev->spriteInfo->sprite->hotPhys.pScreen->myNum],
-                    TRUE, FALSE);
-    }
-}
-#endif
-
-static void
-CheckGrabForSyncs(DeviceIntPtr thisDev, Bool thisMode, Bool otherMode)
-{
-    GrabPtr grab = thisDev->deviceGrab.grab;
-    DeviceIntPtr dev;
-
-    if (thisMode == GrabModeSync)
-	thisDev->deviceGrab.sync.state = FROZEN_NO_EVENT;
-    else
-    {	/* free both if same client owns both */
-	thisDev->deviceGrab.sync.state = THAWED;
-	if (thisDev->deviceGrab.sync.other &&
-	    (CLIENT_BITS(thisDev->deviceGrab.sync.other->resource) ==
-	     CLIENT_BITS(grab->resource)))
-	    thisDev->deviceGrab.sync.other = NullGrab;
-    }
-
-    if (IsMaster(thisDev))
-    {
-        dev = GetPairedDevice(thisDev);
-        if (otherMode == GrabModeSync)
-            dev->deviceGrab.sync.other = grab;
-        else
-        {	/* free both if same client owns both */
-            if (dev->deviceGrab.sync.other &&
-                    (CLIENT_BITS(dev->deviceGrab.sync.other->resource) ==
-                     CLIENT_BITS(grab->resource)))
-                dev->deviceGrab.sync.other = NullGrab;
-        }
-    }
-    ComputeFreezes();
-}
-
-/**
- * Save the device's master device id. This needs to be done
- * if a client directly grabs a slave device that is attached to a master. For
- * the duration of the grab, the device is detached, ungrabbing re-attaches it
- * though.
- *
- * We store the ID of the master device only in case the master disappears
- * while the device has a grab.
- */
-static void
-DetachFromMaster(DeviceIntPtr dev)
-{
-    if (!dev->u.master)
-        return;
-
-    dev->saved_master_id = dev->u.master->id;
-
-    AttachDevice(NULL, dev, NULL);
-}
-
-static void
-ReattachToOldMaster(DeviceIntPtr dev)
-{
-    DeviceIntPtr master = NULL;
-
-    if (IsMaster(dev))
-        return;
-
-    dixLookupDevice(&master, dev->saved_master_id, serverClient, DixUseAccess);
-
-    if (master)
-    {
-        AttachDevice(serverClient, dev, master);
-	dev->saved_master_id = 0;
-    }
-}
-
-/**
- * Activate a pointer grab on the given device. A pointer grab will cause all
- * core pointer events of this device to be delivered to the grabbing client only.
- * No other device will send core events to the grab client while the grab is
- * on, but core events will be sent to other clients.
- * Can cause the cursor to change if a grab cursor is set.
- *
- * Note that parameter autoGrab may be (True & ImplicitGrabMask) if the grab
- * is an implicit grab caused by a ButtonPress event.
- *
- * @param mouse The device to grab.
- * @param grab The grab structure, needs to be setup.
- * @param autoGrab True if the grab was caused by a button down event and not
- * explicitely by a client.
- */
-void
-ActivatePointerGrab(DeviceIntPtr mouse, GrabPtr grab,
-                    TimeStamp time, Bool autoGrab)
-{
-    GrabInfoPtr grabinfo = &mouse->deviceGrab;
-    WindowPtr oldWin = (grabinfo->grab) ?
-                        grabinfo->grab->window
-                        : mouse->spriteInfo->sprite->win;
-    Bool isPassive = autoGrab & ~ImplicitGrabMask;
-
-    /* slave devices need to float for the duration of the grab. */
-    if (grab->grabtype == GRABTYPE_XI2 &&
-        !(autoGrab & ImplicitGrabMask) && !IsMaster(mouse))
-        DetachFromMaster(mouse);
-
-    if (grab->confineTo)
-    {
-	if (grab->confineTo->drawable.pScreen
-                != mouse->spriteInfo->sprite->hotPhys.pScreen)
-	    mouse->spriteInfo->sprite->hotPhys.x =
-                mouse->spriteInfo->sprite->hotPhys.y = 0;
-	ConfineCursorToWindow(mouse, grab->confineTo, FALSE, TRUE);
-    }
-    DoEnterLeaveEvents(mouse, mouse->id, oldWin, grab->window, NotifyGrab);
-    mouse->valuator->motionHintWindow = NullWindow;
-    if (syncEvents.playingEvents)
-        grabinfo->grabTime = syncEvents.time;
-    else
-	grabinfo->grabTime = time;
-    if (grab->cursor)
-	grab->cursor->refcnt++;
-    grabinfo->activeGrab = *grab;
-    grabinfo->grab = &grabinfo->activeGrab;
-    grabinfo->fromPassiveGrab = isPassive;
-    grabinfo->implicitGrab = autoGrab & ImplicitGrabMask;
-    PostNewCursor(mouse);
-    CheckGrabForSyncs(mouse,(Bool)grab->pointerMode, (Bool)grab->keyboardMode);
-}
-
-/**
- * Delete grab on given device, update the sprite.
- *
- * Extension devices are set up for ActivateKeyboardGrab().
- */
-void
-DeactivatePointerGrab(DeviceIntPtr mouse)
-{
-    GrabPtr grab = mouse->deviceGrab.grab;
-    DeviceIntPtr dev;
-    Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&
-                        mouse->deviceGrab.implicitGrab);
-
-    mouse->valuator->motionHintWindow = NullWindow;
-    mouse->deviceGrab.grab = NullGrab;
-    mouse->deviceGrab.sync.state = NOT_GRABBED;
-    mouse->deviceGrab.fromPassiveGrab = FALSE;
-
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-	if (dev->deviceGrab.sync.other == grab)
-	    dev->deviceGrab.sync.other = NullGrab;
-    }
-    DoEnterLeaveEvents(mouse, mouse->id, grab->window,
-                       mouse->spriteInfo->sprite->win, NotifyUngrab);
-    if (grab->confineTo)
-	ConfineCursorToWindow(mouse, RootWindow(mouse), FALSE, FALSE);
-    PostNewCursor(mouse);
-    if (grab->cursor)
-	FreeCursor(grab->cursor, (Cursor)0);
-
-    if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
-        ReattachToOldMaster(mouse);
-
-    ComputeFreezes();
-}
-
-/**
- * Activate a keyboard grab on the given device.
- *
- * Extension devices have ActivateKeyboardGrab() set as their grabbing proc.
- */
-void
-ActivateKeyboardGrab(DeviceIntPtr keybd, GrabPtr grab, TimeStamp time, Bool passive)
-{
-    GrabInfoPtr grabinfo = &keybd->deviceGrab;
-    WindowPtr oldWin;
-
-    /* slave devices need to float for the duration of the grab. */
-    if (grab->grabtype == GRABTYPE_XI2 &&
-        !(passive & ImplicitGrabMask) &&
-        !IsMaster(keybd))
-        DetachFromMaster(keybd);
-
-    if (grabinfo->grab)
-	oldWin = grabinfo->grab->window;
-    else if (keybd->focus)
-	oldWin = keybd->focus->win;
-    else
-	oldWin = keybd->spriteInfo->sprite->win;
-    if (oldWin == FollowKeyboardWin)
-	oldWin = keybd->focus->win;
-    if (keybd->valuator)
-	keybd->valuator->motionHintWindow = NullWindow;
-    DoFocusEvents(keybd, oldWin, grab->window, NotifyGrab);
-    if (syncEvents.playingEvents)
-	grabinfo->grabTime = syncEvents.time;
-    else
-	grabinfo->grabTime = time;
-    grabinfo->activeGrab = *grab;
-    grabinfo->grab = &grabinfo->activeGrab;
-    grabinfo->fromPassiveGrab = passive;
-    grabinfo->implicitGrab = passive & ImplicitGrabMask;
-    CheckGrabForSyncs(keybd, (Bool)grab->keyboardMode, (Bool)grab->pointerMode);
-}
-
-/**
- * Delete keyboard grab for the given device.
- */
-void
-DeactivateKeyboardGrab(DeviceIntPtr keybd)
-{
-    GrabPtr grab = keybd->deviceGrab.grab;
-    DeviceIntPtr dev;
-    WindowPtr focusWin = keybd->focus ? keybd->focus->win
-                                           : keybd->spriteInfo->sprite->win;
-    Bool wasImplicit = (keybd->deviceGrab.fromPassiveGrab &&
-                        keybd->deviceGrab.implicitGrab);
-
-    if (focusWin == FollowKeyboardWin)
-	focusWin = inputInfo.keyboard->focus->win;
-    if (keybd->valuator)
-	keybd->valuator->motionHintWindow = NullWindow;
-    keybd->deviceGrab.grab = NullGrab;
-    keybd->deviceGrab.sync.state = NOT_GRABBED;
-    keybd->deviceGrab.fromPassiveGrab = FALSE;
-
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-	if (dev->deviceGrab.sync.other == grab)
-	    dev->deviceGrab.sync.other = NullGrab;
-    }
-    DoFocusEvents(keybd, grab->window, focusWin, NotifyUngrab);
-
-    if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
-        ReattachToOldMaster(keybd);
-
-    ComputeFreezes();
-}
-
-void
-AllowSome(ClientPtr client,
-          TimeStamp time,
-          DeviceIntPtr thisDev,
-          int newState)
-{
-    Bool thisGrabbed, otherGrabbed, othersFrozen, thisSynced;
-    TimeStamp grabTime;
-    DeviceIntPtr dev;
-    GrabInfoPtr devgrabinfo,
-                grabinfo = &thisDev->deviceGrab;
-
-    thisGrabbed = grabinfo->grab && SameClient(grabinfo->grab, client);
-    thisSynced = FALSE;
-    otherGrabbed = FALSE;
-    othersFrozen = FALSE;
-    grabTime = grabinfo->grabTime;
-    for (dev = inputInfo.devices; dev; dev = dev->next)
-    {
-        devgrabinfo = &dev->deviceGrab;
-
-	if (dev == thisDev)
-	    continue;
-	if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client))
-	{
-	    if (!(thisGrabbed || otherGrabbed) ||
-		(CompareTimeStamps(devgrabinfo->grabTime, grabTime) == LATER))
-		grabTime = devgrabinfo->grabTime;
-	    otherGrabbed = TRUE;
-	    if (grabinfo->sync.other == devgrabinfo->grab)
-		thisSynced = TRUE;
-	    if (devgrabinfo->sync.state >= FROZEN)
-		othersFrozen = TRUE;
-	}
-    }
-    if (!((thisGrabbed && grabinfo->sync.state >= FROZEN) || thisSynced))
-	return;
-    if ((CompareTimeStamps(time, currentTime) == LATER) ||
-	(CompareTimeStamps(time, grabTime) == EARLIER))
-	return;
-    switch (newState)
-    {
-	case THAWED:		       /* Async */
-	    if (thisGrabbed)
-		grabinfo->sync.state = THAWED;
-	    if (thisSynced)
-		grabinfo->sync.other = NullGrab;
-	    ComputeFreezes();
-	    break;
-	case FREEZE_NEXT_EVENT:		/* Sync */
-	    if (thisGrabbed)
-	    {
-		grabinfo->sync.state = FREEZE_NEXT_EVENT;
-		if (thisSynced)
-		    grabinfo->sync.other = NullGrab;
-		ComputeFreezes();
-	    }
-	    break;
-	case THAWED_BOTH:		/* AsyncBoth */
-	    if (othersFrozen)
-	    {
-		for (dev = inputInfo.devices; dev; dev = dev->next)
-		{
-                    devgrabinfo = &dev->deviceGrab;
-		    if (devgrabinfo->grab
-                            && SameClient(devgrabinfo->grab, client))
-			devgrabinfo->sync.state = THAWED;
-		    if (devgrabinfo->sync.other &&
-                            SameClient(devgrabinfo->sync.other, client))
-			devgrabinfo->sync.other = NullGrab;
-		}
-		ComputeFreezes();
-	    }
-	    break;
-	case FREEZE_BOTH_NEXT_EVENT:	/* SyncBoth */
-	    if (othersFrozen)
-	    {
-		for (dev = inputInfo.devices; dev; dev = dev->next)
-		{
-                    devgrabinfo = &dev->deviceGrab;
-		    if (devgrabinfo->grab
-                            && SameClient(devgrabinfo->grab, client))
-			devgrabinfo->sync.state = FREEZE_BOTH_NEXT_EVENT;
-		    if (devgrabinfo->sync.other
-                            && SameClient(devgrabinfo->sync.other, client))
-			devgrabinfo->sync.other = NullGrab;
-		}
-		ComputeFreezes();
-	    }
-	    break;
-	case NOT_GRABBED:		/* Replay */
-	    if (thisGrabbed && grabinfo->sync.state == FROZEN_WITH_EVENT)
-	    {
-		if (thisSynced)
-		    grabinfo->sync.other = NullGrab;
-		syncEvents.replayDev = thisDev;
-		syncEvents.replayWin = grabinfo->grab->window;
-		(*grabinfo->DeactivateGrab)(thisDev);
-		syncEvents.replayDev = (DeviceIntPtr)NULL;
-	    }
-	    break;
-	case THAW_OTHERS:		/* AsyncOthers */
-	    if (othersFrozen)
-	    {
-		for (dev = inputInfo.devices; dev; dev = dev->next)
-		{
-		    if (dev == thisDev)
-			continue;
-                    devgrabinfo = &dev->deviceGrab;
-		    if (devgrabinfo->grab
-                            && SameClient(devgrabinfo->grab, client))
-			devgrabinfo->sync.state = THAWED;
-		    if (devgrabinfo->sync.other
-                            && SameClient(devgrabinfo->sync.other, client))
-			devgrabinfo->sync.other = NullGrab;
-		}
-		ComputeFreezes();
-	    }
-	    break;
-    }
-}
-
-/**
- * Server-side protocol handling for AllowEvents request.
- *
- * Release some events from a frozen device.
- */
-int
-ProcAllowEvents(ClientPtr client)
-{
-    TimeStamp		time;
-    DeviceIntPtr	mouse = NULL;
-    DeviceIntPtr	keybd = NULL;
-    REQUEST(xAllowEventsReq);
-
-    REQUEST_SIZE_MATCH(xAllowEventsReq);
-    time = ClientTimeToServerTime(stuff->time);
-
-    mouse = PickPointer(client);
-    keybd = PickKeyboard(client);
-
-    switch (stuff->mode)
-    {
-	case ReplayPointer:
-	    AllowSome(client, time, mouse, NOT_GRABBED);
-	    break;
-	case SyncPointer:
-	    AllowSome(client, time, mouse, FREEZE_NEXT_EVENT);
-	    break;
-	case AsyncPointer:
-	    AllowSome(client, time, mouse, THAWED);
-	    break;
-	case ReplayKeyboard:
-	    AllowSome(client, time, keybd, NOT_GRABBED);
-	    break;
-	case SyncKeyboard:
-	    AllowSome(client, time, keybd, FREEZE_NEXT_EVENT);
-	    break;
-	case AsyncKeyboard:
-	    AllowSome(client, time, keybd, THAWED);
-	    break;
-	case SyncBoth:
-	    AllowSome(client, time, keybd, FREEZE_BOTH_NEXT_EVENT);
-	    break;
-	case AsyncBoth:
-	    AllowSome(client, time, keybd, THAWED_BOTH);
-	    break;
-	default:
-	    client->errorValue = stuff->mode;
-	    return BadValue;
-    }
-    return Success;
-}
-
-/**
- * Deactivate grabs from any device that has been grabbed by the client.
- */
-void
-ReleaseActiveGrabs(ClientPtr client)
-{
-    DeviceIntPtr dev;
-    Bool    done;
-
-    /* XXX CloseDownClient should remove passive grabs before
-     * releasing active grabs.
-     */
-    do {
-	done = TRUE;
-	for (dev = inputInfo.devices; dev; dev = dev->next)
-	{
-	    if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
-	    {
-		(*dev->deviceGrab.DeactivateGrab)(dev);
-		done = FALSE;
-	    }
-	}
-    } while (!done);
-}
-
-/**************************************************************************
- *            The following procedures deal with delivering events        *
- **************************************************************************/
-
-/**
- * Deliver the given events to the given client.
- *
- * More than one event may be delivered at a time. This is the case with
- * DeviceMotionNotifies which may be followed by DeviceValuator events.
- *
- * TryClientEvents() is the last station before actually writing the events to
- * the socket. Anything that is not filtered here, will get delivered to the
- * client.
- * An event is only delivered if
- *   - mask and filter match up.
- *   - no other client has a grab on the device that caused the event.
- *
- *
- * @param client The target client to deliver to.
- * @param dev The device the event came from. May be NULL.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param mask Event mask as set by the window.
- * @param filter Mask based on event type.
- * @param grab Possible grab on the device that caused the event.
- *
- * @return 1 if event was delivered, 0 if not or -1 if grab was not set by the
- * client.
- */
-int
-TryClientEvents (ClientPtr client, DeviceIntPtr dev, xEvent *pEvents,
-                 int count, Mask mask, Mask filter, GrabPtr grab)
-{
-    int i;
-    int type;
-
-#ifdef DEBUG_EVENTS
-    ErrorF("[dix] Event([%d, %d], mask=0x%lx), client=%d%s",
-           pEvents->u.u.type, pEvents->u.u.detail, mask,
-           client ? client->index : -1,
-           (client && client->clientGone) ? " (gone)" : "");
-#endif
-
-    if (!client || client == serverClient || client->clientGone) {
-#ifdef DEBUG_EVENTS
-        ErrorF(" not delivered to fake/dead client\n");
-#endif
-        return 0;
-    }
-
-    if (filter != CantBeFiltered && !(mask & filter))
-    {
- #ifdef DEBUG_EVENTS
-        ErrorF(" filtered\n");
- #endif
-        return 0;
-    }
-
-    if (grab && !SameClient(grab, client))
-    {
-#ifdef DEBUG_EVENTS
-        ErrorF(" not delivered due to grab\n");
-#endif
-        return -1; /* don't send, but notify caller */
-    }
-
-    type = pEvents->u.u.type;
-    if (type == MotionNotify)
-    {
-        if (mask & PointerMotionHintMask)
-        {
-            if (WID(dev->valuator->motionHintWindow) ==
-                    pEvents->u.keyButtonPointer.event)
-            {
-#ifdef DEBUG_EVENTS
-                ErrorF("[dix] \n");
-                ErrorF("[dix] motionHintWindow == keyButtonPointer.event\n");
-#endif
-                return 1; /* don't send, but pretend we did */
-            }
-            pEvents->u.u.detail = NotifyHint;
-        }
-        else
-        {
-            pEvents->u.u.detail = NotifyNormal;
-        }
-    }
-    else if (type == DeviceMotionNotify)
-    {
-        if (MaybeSendDeviceMotionNotifyHint((deviceKeyButtonPointer*)pEvents,
-                                            mask) != 0)
-            return 1;
-    } else if (type == KeyPress)
-    {
-        if (EventIsKeyRepeat(pEvents))
-        {
-            if (!_XkbWantsDetectableAutoRepeat(client))
-            {
-                xEvent release = *pEvents;
-                release.u.u.type = KeyRelease;
-                release.u.u.sequenceNumber = client->sequence;
-                WriteEventsToClient(client, 1, &release);
-#ifdef DEBUG_EVENTS
-                ErrorF(" (plus fake core release for repeat)");
-#endif
-            } else
-            {
-#ifdef DEBUG_EVENTS
-                ErrorF(" (detectable autorepeat for core)");
-#endif
-            }
-        }
-
-    } else if (type == DeviceKeyPress)
-    {
-        if (EventIsKeyRepeat(pEvents))
-        {
-            if (!_XkbWantsDetectableAutoRepeat(client))
-            {
-                deviceKeyButtonPointer release = *(deviceKeyButtonPointer *)pEvents;
-                release.type = DeviceKeyRelease;
-                release.sequenceNumber = client->sequence;
-#ifdef DEBUG_EVENTS
-                ErrorF(" (plus fake xi1 release for repeat)");
-#endif
-                WriteEventsToClient(client, 1, (xEvent *) &release);
-            }
-            else {
-#ifdef DEBUG_EVENTS
-                ErrorF(" (detectable autorepeat for core)");
-#endif
-            }
-        }
-    }
-
-    type &= 0177;
-    if (type != KeymapNotify)
-    {
-        /* all extension events must have a sequence number */
-        for (i = 0; i < count; i++)
-            pEvents[i].u.u.sequenceNumber = client->sequence;
-    }
-
-    if (BitIsOn(criticalEvents, type))
-    {
-        if (client->smart_priority < SMART_MAX_PRIORITY)
-            client->smart_priority++;
-        SetCriticalOutputPending();
-    }
-
-    WriteEventsToClient(client, count, pEvents);
-#ifdef DEBUG_EVENTS
-    ErrorF("[dix]  delivered\n");
-#endif
-    return 1;
-}
-
-/**
- * Deliver events to a window. At this point, we do not yet know if the event
- * actually needs to be delivered. May activate a grab if the event is a
- * button press.
- *
- * Core events are always delivered to the window owner. If the filter is
- * something other than CantBeFiltered, the event is also delivered to other
- * clients with the matching mask on the window.
- *
- * More than one event may be delivered at a time. This is the case with
- * DeviceMotionNotifies which may be followed by DeviceValuator events.
- *
- * @param pWin The window that would get the event.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param filter Mask based on event type.
- * @param grab Possible grab on the device that caused the event.
- *
- * @return Number of events delivered to various clients.
- */
-int
-DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
-        *pEvents, int count, Mask filter, GrabPtr grab)
-{
-    int deliveries = 0, nondeliveries = 0;
-    int attempt;
-    InputClients *other;
-    ClientPtr client = NullClient;
-    Mask deliveryMask = 0; /* If a grab occurs due to a button press, then
-		              this mask is the mask of the grab. */
-    int type = pEvents->u.u.type;
-
-
-    /* Deliver to window owner */
-    if ((filter == CantBeFiltered) || CORE_EVENT(pEvents))
-    {
-	/* if nobody ever wants to see this event, skip some work */
-	if (filter != CantBeFiltered &&
-	    !((wOtherEventMasks(pWin)|pWin->eventMask) & filter))
-	    return 0;
-
-        if (IsInterferingGrab(wClient(pWin), pDev, pEvents))
-                return 0;
-
-	if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
-	    /* do nothing */;
-        else if ( (attempt = TryClientEvents(wClient(pWin), pDev, pEvents,
-                                             count, pWin->eventMask,
-                                             filter, grab)) )
-	{
-	    if (attempt > 0)
-	    {
-		deliveries++;
-		client = wClient(pWin);
-		deliveryMask = pWin->eventMask;
-	    } else
-		nondeliveries--;
-	}
-    }
-
-    /* CantBeFiltered means only window owner gets the event */
-    if (filter != CantBeFiltered)
-    {
-        if (CORE_EVENT(pEvents))
-            other = (InputClients *)wOtherClients(pWin);
-        else if (XI2_EVENT(pEvents))
-        {
-            OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
-            /* Has any client selected for the event? */
-            if (!GetWindowXI2Mask(pDev, pWin, pEvents))
-                return 0;
-            other = inputMasks->inputClients;
-        } else {
-            OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
-            /* Has any client selected for the event? */
-            if (!inputMasks ||
-                !(inputMasks->inputEvents[pDev->id] & filter))
-                return 0;
-
-            other = inputMasks->inputClients;
-        }
-
-        for (; other; other = other->next)
-        {
-            Mask mask;
-            if (IsInterferingGrab(rClient(other), pDev, pEvents))
-                continue;
-
-            mask = GetEventMask(pDev, pEvents, other);
-
-            if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin,
-                        pEvents, count))
-                /* do nothing */;
-            else if ( (attempt = TryClientEvents(rClient(other), pDev,
-                            pEvents, count,
-                            mask, filter, grab)) )
-            {
-                if (attempt > 0)
-                {
-                    deliveries++;
-                    client = rClient(other);
-                    deliveryMask = mask;
-                } else
-                    nondeliveries--;
-            }
-        }
-    }
-    /*
-     * Note that since core events are delivered first, an implicit grab may
-     * be activated on a core grab, stopping the XI events.
-     */
-    if ((type == DeviceButtonPress || type == ButtonPress ||
-        ((XI2_EVENT(pEvents) && ((xGenericEvent*)pEvents)->evtype == XI_ButtonPress)))
-            && deliveries
-            && (!grab))
-    {
-	GrabRec tempGrab;
-        OtherInputMasks *inputMasks;
-
-        memset(&tempGrab, 0, sizeof(GrabRec));
-        tempGrab.next = NULL;
-	tempGrab.device = pDev;
-	tempGrab.resource = client->clientAsMask;
-	tempGrab.window = pWin;
-	tempGrab.ownerEvents = (deliveryMask & OwnerGrabButtonMask) ? TRUE : FALSE;
-	tempGrab.eventMask = deliveryMask;
-	tempGrab.keyboardMode = GrabModeAsync;
-	tempGrab.pointerMode = GrabModeAsync;
-	tempGrab.confineTo = NullWindow;
-	tempGrab.cursor = NullCursor;
-        tempGrab.type = type;
-        if (type == ButtonPress)
-            tempGrab.grabtype = GRABTYPE_CORE;
-        else if (type == DeviceButtonPress)
-            tempGrab.grabtype = GRABTYPE_XI;
-        else
-        {
-            tempGrab.type = ((xGenericEvent*)pEvents)->evtype;
-            tempGrab.grabtype = GRABTYPE_XI2;
-        }
-
-        /* get the XI and XI2 device mask */
-        inputMasks = wOtherInputMasks(pWin);
-        tempGrab.deviceMask = (inputMasks) ? inputMasks->inputEvents[pDev->id]: 0;
-
-        if (inputMasks)
-            memcpy(tempGrab.xi2mask, inputMasks->xi2mask,
-                    sizeof(tempGrab.xi2mask));
-
-	(*pDev->deviceGrab.ActivateGrab)(pDev, &tempGrab,
-                                        currentTime, TRUE | ImplicitGrabMask);
-    }
-    else if ((type == MotionNotify) && deliveries)
-	pDev->valuator->motionHintWindow = pWin;
-    else
-    {
-	if ((type == DeviceMotionNotify || type == DeviceButtonPress) &&
-	    deliveries)
-	    CheckDeviceGrabAndHintWindow (pWin, type,
-					  (deviceKeyButtonPointer*) pEvents,
-					  grab, client, deliveryMask);
-    }
-    if (deliveries)
-	return deliveries;
-    return nondeliveries;
-}
-
-/* If the event goes to dontClient, don't send it and return 0.  if
-   send works,  return 1 or if send didn't work, return 2.
-   Only works for core events.
-*/
-
-#ifdef PANORAMIX
-static int
-XineramaTryClientEventsResult(
-    ClientPtr client,
-    GrabPtr grab,
-    Mask mask,
-    Mask filter
-){
-    if ((client) && (client != serverClient) && (!client->clientGone) &&
-        ((filter == CantBeFiltered) || (mask & filter)))
-    {
-        if (grab && !SameClient(grab, client)) return -1;
-	else return 1;
-    }
-    return 0;
-}
-#endif
-
-/**
- * Try to deliver events to the interested parties.
- *
- * @param pWin The window that would get the event.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param filter Mask based on event type.
- * @param dontClient Don't deliver to the dontClient.
- */
-int
-MaybeDeliverEventsToClient(WindowPtr pWin, xEvent *pEvents,
-                           int count, Mask filter, ClientPtr dontClient)
-{
-    OtherClients *other;
-
-
-    if (pWin->eventMask & filter)
-    {
-        if (wClient(pWin) == dontClient)
-	    return 0;
-#ifdef PANORAMIX
-	if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
-	    return XineramaTryClientEventsResult(
-			wClient(pWin), NullGrab, pWin->eventMask, filter);
-#endif
-	if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
-	    return 1; /* don't send, but pretend we did */
-	return TryClientEvents(wClient(pWin), NULL, pEvents, count,
-			       pWin->eventMask, filter, NullGrab);
-    }
-    for (other = wOtherClients(pWin); other; other = other->next)
-    {
-	if (other->mask & filter)
-	{
-            if (SameClient(other, dontClient))
-		return 0;
-#ifdef PANORAMIX
-	    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
-	      return XineramaTryClientEventsResult(
-			rClient(other), NullGrab, other->mask, filter);
-#endif
-	    if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin, pEvents,
-			 count))
-		return 1; /* don't send, but pretend we did */
-	    return TryClientEvents(rClient(other), NULL, pEvents, count,
-				   other->mask, filter, NullGrab);
-	}
-    }
-    return 2;
-}
-
-static Window FindChildForEvent(DeviceIntPtr dev, WindowPtr event)
-{
-    SpritePtr pSprite = dev->spriteInfo->sprite;
-    WindowPtr w = pSprite->spriteTrace[pSprite->spriteTraceGood-1];
-    Window child = None;
-
-    /* If the search ends up past the root should the child field be
-       set to none or should the value in the argument be passed
-       through. It probably doesn't matter since everyone calls
-       this function with child == None anyway. */
-    while (w)
-    {
-        /* If the source window is same as event window, child should be
-           none.  Don't bother going all all the way back to the root. */
-
-        if (w == event)
-        {
-            child = None;
-            break;
-        }
-
-        if (w->parent == event)
-        {
-            child = w->drawable.id;
-            break;
-        }
-        w = w->parent;
-    }
-    return child;
-}
-
-/**
- * Adjust event fields to comply with the window properties.
- *
- * @param xE Event to be modified in place
- * @param pWin The window to get the information from.
- * @param child Child window setting for event (if applicable)
- * @param calcChild If True, calculate the child window.
- */
-void
-FixUpEventFromWindow(
-    DeviceIntPtr pDev,
-    xEvent *xE,
-    WindowPtr pWin,
-    Window child,
-    Bool calcChild)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    if (calcChild)
-        child = FindChildForEvent(pDev, pWin);
-
-    if (XI2_EVENT(xE))
-    {
-        xXIDeviceEvent* event = (xXIDeviceEvent*)xE;
-
-        if (event->evtype == XI_RawKeyPress ||
-            event->evtype == XI_RawKeyRelease ||
-            event->evtype == XI_RawButtonPress ||
-            event->evtype == XI_RawButtonRelease ||
-            event->evtype == XI_RawMotion ||
-            event->evtype == XI_DeviceChanged ||
-            event->evtype == XI_HierarchyChanged ||
-            event->evtype == XI_PropertyEvent)
-            return;
-
-        event->root = RootWindow(pDev)->drawable.id;
-        event->event = pWin->drawable.id;
-        if (pSprite->hot.pScreen == pWin->drawable.pScreen)
-        {
-            event->event_x = event->root_x - FP1616(pWin->drawable.x, 0);
-            event->event_y = event->root_y - FP1616(pWin->drawable.y, 0);
-            event->child = child;
-        } else
-        {
-            event->event_x = 0;
-            event->event_y = 0;
-            event->child = None;
-        }
-
-        if (event->evtype == XI_Enter || event->evtype == XI_Leave ||
-            event->evtype == XI_FocusIn || event->evtype == XI_FocusOut)
-            ((xXIEnterEvent*)event)->same_screen =
-                (pSprite->hot.pScreen == pWin->drawable.pScreen);
-
-    } else
-    {
-        XE_KBPTR.root = RootWindow(pDev)->drawable.id;
-        XE_KBPTR.event = pWin->drawable.id;
-        if (pSprite->hot.pScreen == pWin->drawable.pScreen)
-        {
-            XE_KBPTR.sameScreen = xTrue;
-            XE_KBPTR.child = child;
-            XE_KBPTR.eventX =
-                XE_KBPTR.rootX - pWin->drawable.x;
-            XE_KBPTR.eventY =
-                XE_KBPTR.rootY - pWin->drawable.y;
-        }
-        else
-        {
-            XE_KBPTR.sameScreen = xFalse;
-            XE_KBPTR.child = None;
-            XE_KBPTR.eventX = 0;
-            XE_KBPTR.eventY = 0;
-        }
-    }
-}
-
-/**
- * Return masks for EventIsDeliverable.
- * @defgroup EventIsDeliverable return flags
- * @{
- */
-#define XI_MASK                 (1 << 0) /**< XI mask set on window */
-#define CORE_MASK               (1 << 1) /**< Core mask set on window */
-#define DONT_PROPAGATE_MASK     (1 << 2) /**< DontPropagate mask set on window */
-#define XI2_MASK                (1 << 3) /**< XI2 mask set on window */
-/* @} */
-
-/**
- * Check if a given event is deliverable at all on a given window.
- *
- * This function only checks if any client wants it, not for a specific
- * client.
- *
- * @param[in] dev The device this event is being sent for.
- * @param[in] event The event that is to be sent.
- * @param[in] win The current event window.
- *
- * @return Bitmask of ::XI2_MASK, ::XI_MASK, ::CORE_MASK, and
- * ::DONT_PROPAGATE_MASK.
- */
-static int
-EventIsDeliverable(DeviceIntPtr dev, InternalEvent* event, WindowPtr win)
-{
-    int rc = 0;
-    int filter = 0;
-    int type;
-    OtherInputMasks *inputMasks = wOtherInputMasks(win);
-    xEvent ev;
-
-    /* XXX: this makes me gag */
-    type = GetXI2Type(event);
-    ev.u.u.type = GenericEvent; /* GetEventFilter only cares about type and evtype*/
-    ((xGenericEvent*)&ev)->extension = IReqCode;
-    ((xGenericEvent*)&ev)->evtype = type;
-    filter = GetEventFilter(dev, &ev);
-    if (type && inputMasks &&
-        ((inputMasks->xi2mask[XIAllDevices][type/8] & filter) ||
-         ((inputMasks->xi2mask[XIAllMasterDevices][type/8] & filter) && IsMaster(dev)) ||
-         (inputMasks->xi2mask[dev->id][type/8] & filter)))
-        rc |= XI2_MASK;
-
-    type = GetXIType(event);
-    ev.u.u.type = type;
-    filter = GetEventFilter(dev, &ev);
-
-    /* Check for XI mask */
-    if (type && inputMasks &&
-        (inputMasks->deliverableEvents[dev->id] & filter) &&
-        (inputMasks->inputEvents[dev->id] & filter))
-        rc |= XI_MASK;
-
-    /* Check for XI DontPropagate mask */
-    if (type && inputMasks &&
-        (inputMasks->dontPropagateMask[dev->id] & filter))
-        rc |= DONT_PROPAGATE_MASK;
-
-    /* Check for core mask */
-    type = GetCoreType(event);
-    if (type && (win->deliverableEvents & filter) &&
-        ((wOtherEventMasks(win) | win->eventMask) & filter))
-        rc |= CORE_MASK;
-
-    /* Check for core DontPropagate mask */
-    if (type && (filter & wDontPropagateMask(win)))
-        rc |= DONT_PROPAGATE_MASK;
-
-    return rc;
-}
-
-/**
- * Deliver events caused by input devices.
- *
- * For events from a non-grabbed, non-focus device, DeliverDeviceEvents is
- * called directly from the processInputProc.
- * For grabbed devices, DeliverGrabbedEvent is called first, and _may_ call
- * DeliverDeviceEvents.
- * For focused events, DeliverFocusedEvent is called first, and _may_ call
- * DeliverDeviceEvents.
- *
- * @param pWin Window to deliver event to.
- * @param event The events to deliver, not yet in wire format.
- * @param grab Possible grab on a device.
- * @param stopAt Don't recurse up to the root window.
- * @param dev The device that is responsible for the event.
- *
- * @see DeliverGrabbedEvent
- * @see DeliverFocusedEvent
- */
-int
-DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab,
-                    WindowPtr stopAt, DeviceIntPtr dev)
-{
-    Window child = None;
-    Mask filter;
-    int deliveries = 0;
-    xEvent core;
-    xEvent *xE = NULL;
-    int rc, mask, count = 0;
-
-    CHECKEVENT(event);
-
-    while (pWin)
-    {
-        if ((mask = EventIsDeliverable(dev, event, pWin)))
-        {
-            /* XI2 events first */
-            if (mask & XI2_MASK)
-            {
-                xEvent *xi2 = NULL;
-                rc = EventToXI2(event, &xi2);
-                if (rc == Success)
-                {
-                    /* XXX: XACE */
-                    filter = GetEventFilter(dev, xi2);
-                    FixUpEventFromWindow(dev, xi2, pWin, child, FALSE);
-                    deliveries = DeliverEventsToWindow(dev, pWin, xi2, 1,
-                                                       filter, grab);
-                    xfree(xi2);
-                    if (deliveries > 0)
-                        goto unwind;
-                } else if (rc != BadMatch)
-                    ErrorF("[dix] %s: XI2 conversion failed in DDE (%d).\n",
-                            dev->name, rc);
-            }
-
-            /* XI events */
-            if (mask & XI_MASK)
-            {
-                rc = EventToXI(event, &xE, &count);
-                if (rc == Success) {
-                    if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, xE, count) == Success) {
-                        filter = GetEventFilter(dev, xE);
-                        FixUpEventFromWindow(dev, xE, pWin, child, FALSE);
-                        deliveries = DeliverEventsToWindow(dev, pWin, xE, count,
-                                                           filter, grab);
-                        if (deliveries > 0)
-                            goto unwind;
-                    }
-                } else if (rc != BadMatch)
-                    ErrorF("[dix] %s: XI conversion failed in DDE (%d, %d). Skipping delivery.\n",
-                            dev->name, event->any.type, rc);
-            }
-
-            /* Core event */
-            if ((mask & CORE_MASK) && IsMaster(dev) && dev->coreEvents)
-            {
-                rc = EventToCore(event, &core);
-                if (rc == Success) {
-                    if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, &core, 1) == Success) {
-                        filter = GetEventFilter(dev, &core);
-                        FixUpEventFromWindow(dev, &core, pWin, child, FALSE);
-                        deliveries = DeliverEventsToWindow(dev, pWin, &core, 1,
-                                                           filter, grab);
-                        if (deliveries > 0)
-                            goto unwind;
-                    }
-                } else if (rc != BadMatch)
-                        ErrorF("[dix] %s: Core conversion failed in DDE (%d, %d).\n",
-                                dev->name, event->any.type, rc);
-            }
-
-            if ((deliveries < 0) || (pWin == stopAt) ||
-                (mask & DONT_PROPAGATE_MASK))
-            {
-                deliveries = 0;
-                goto unwind;
-            }
-        }
-
-        child = pWin->drawable.id;
-        pWin = pWin->parent;
-    }
-
-unwind:
-    xfree(xE);
-    return deliveries;
-}
-
-#undef XI_MASK
-#undef CORE_MASK
-#undef DONT_PROPAGATE_MASK
-
-/**
- * Deliver event to a window and it's immediate parent. Used for most window
- * events (CreateNotify, ConfigureNotify, etc.). Not useful for events that
- * propagate up the tree or extension events
- *
- * In case of a ReparentNotify event, the event will be delivered to the
- * otherParent as well.
- *
- * @param pWin Window to deliver events to.
- * @param xE Events to deliver.
- * @param count number of events in xE.
- * @param otherParent Used for ReparentNotify events.
- */
-int
-DeliverEvents(WindowPtr pWin, xEvent *xE, int count,
-              WindowPtr otherParent)
-{
-    Mask filter;
-    int     deliveries;
-    DeviceIntRec dummy;
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
-	return count;
-#endif
-
-    if (!count)
-	return 0;
-
-    dummy.id = XIAllDevices;
-    filter = GetEventFilter(&dummy, xE);
-    if ((filter & SubstructureNotifyMask) && (xE->u.u.type != CreateNotify))
-	xE->u.destroyNotify.event = pWin->drawable.id;
-    if (filter != StructureAndSubMask)
-	return DeliverEventsToWindow(&dummy, pWin, xE, count, filter, NullGrab);
-    deliveries = DeliverEventsToWindow(&dummy, pWin, xE, count,
-                                       StructureNotifyMask, NullGrab);
-    if (pWin->parent)
-    {
-	xE->u.destroyNotify.event = pWin->parent->drawable.id;
-	deliveries += DeliverEventsToWindow(&dummy, pWin->parent, xE, count,
-					    SubstructureNotifyMask, NullGrab);
-	if (xE->u.u.type == ReparentNotify)
-	{
-	    xE->u.destroyNotify.event = otherParent->drawable.id;
-            deliveries += DeliverEventsToWindow(&dummy,
-                    otherParent, xE, count, SubstructureNotifyMask,
-						NullGrab);
-	}
-    }
-    return deliveries;
-}
-
-
-static Bool
-PointInBorderSize(WindowPtr pWin, int x, int y)
-{
-    BoxRec box;
-
-    if(POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderSize, x, y, &box))
-	return TRUE;
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension &&
-            XineramaSetWindowPntrs(inputInfo.pointer, pWin)) {
-	SpritePtr pSprite = inputInfo.pointer->spriteInfo->sprite;
-	int i;
-
-	for(i = 1; i < PanoramiXNumScreens; i++) {
-	   if(POINT_IN_REGION(pSprite->screen,
-			&pSprite->windows[i]->borderSize,
-			x + panoramiXdataPtr[0].x - panoramiXdataPtr[i].x,
-			y + panoramiXdataPtr[0].y - panoramiXdataPtr[i].y,
-			&box))
-		return TRUE;
-	}
-    }
-#endif
-    return FALSE;
-}
-
-/**
- * Traversed from the root window to the window at the position x/y. While
- * traversing, it sets up the traversal history in the spriteTrace array.
- * After completing, the spriteTrace history is set in the following way:
- *   spriteTrace[0] ... root window
- *   spriteTrace[1] ... top level window that encloses x/y
- *       ...
- *   spriteTrace[spriteTraceGood - 1] ... window at x/y
- *
- * @returns the window at the given coordinates.
- */
-static WindowPtr
-XYToWindow(DeviceIntPtr pDev, int x, int y)
-{
-    WindowPtr  pWin;
-    BoxRec		box;
-    SpritePtr pSprite;
-
-    pSprite = pDev->spriteInfo->sprite;
-    pSprite->spriteTraceGood = 1;	/* root window still there */
-    pWin = RootWindow(pDev)->firstChild;
-    while (pWin)
-    {
-	if ((pWin->mapped) &&
-	    (x >= pWin->drawable.x - wBorderWidth (pWin)) &&
-	    (x < pWin->drawable.x + (int)pWin->drawable.width +
-	     wBorderWidth(pWin)) &&
-	    (y >= pWin->drawable.y - wBorderWidth (pWin)) &&
-	    (y < pWin->drawable.y + (int)pWin->drawable.height +
-	     wBorderWidth (pWin))
-	    /* When a window is shaped, a further check
-	     * is made to see if the point is inside
-	     * borderSize
-	     */
-	    && (!wBoundingShape(pWin) || PointInBorderSize(pWin, x, y))
-	    && (!wInputShape(pWin) ||
-		POINT_IN_REGION(pWin->drawable.pScreen,
-				wInputShape(pWin),
-				x - pWin->drawable.x,
-				y - pWin->drawable.y, &box))
-#ifdef ROOTLESS
-    /* In rootless mode windows may be offscreen, even when
-     * they're in X's stack. (E.g. if the native window system
-     * implements some form of virtual desktop system).
-     */
-		&& !pWin->rootlessUnhittable
-#endif
-	    )
-	{
-	    if (pSprite->spriteTraceGood >= pSprite->spriteTraceSize)
-	    {
-		pSprite->spriteTraceSize += 10;
-		pSprite->spriteTrace = xrealloc(pSprite->spriteTrace,
-		                    pSprite->spriteTraceSize*sizeof(WindowPtr));
-	    }
-	    pSprite->spriteTrace[pSprite->spriteTraceGood++] = pWin;
-	    pWin = pWin->firstChild;
-	}
-	else
-	    pWin = pWin->nextSib;
-    }
-    return pSprite->spriteTrace[pSprite->spriteTraceGood-1];
-}
-
-/**
- * Ungrab a currently FocusIn grabbed device and grab the device on the
- * given window. If the win given is the NoneWin, the device is ungrabbed if
- * applicable and FALSE is returned.
- *
- * @returns TRUE if the device has been grabbed, or FALSE otherwise.
- */
-BOOL
-ActivateFocusInGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
-{
-    BOOL rc = FALSE;
-    DeviceEvent event;
-
-    if (dev->deviceGrab.grab &&
-        dev->deviceGrab.fromPassiveGrab &&
-        dev->deviceGrab.grab->type == XI_Enter)
-    {
-        if (dev->deviceGrab.grab->window == win ||
-            IsParent(dev->deviceGrab.grab->window, win))
-            return FALSE;
-        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
-        (*dev->deviceGrab.DeactivateGrab)(dev);
-    }
-
-    if (win == NoneWin || win == PointerRootWin)
-        return FALSE;
-
-    memset(&event, 0, sizeof(DeviceEvent));
-    event.header = ET_Internal;
-    event.type = ET_FocusIn;
-    event.length = sizeof(DeviceEvent);
-    event.time = GetTimeInMillis();
-    event.deviceid = dev->id;
-    event.sourceid = dev->id;
-    event.detail.button = 0;
-    rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
-    if (rc)
-        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
-    return rc;
-}
-
-/**
- * Ungrab a currently Enter grabbed device and grab the device for the given
- * window.
- *
- * @returns TRUE if the device has been grabbed, or FALSE otherwise.
- */
-static BOOL
-ActivateEnterGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
-{
-    BOOL rc = FALSE;
-    DeviceEvent event;
-
-    if (dev->deviceGrab.grab &&
-        dev->deviceGrab.fromPassiveGrab &&
-        dev->deviceGrab.grab->type == XI_Enter)
-    {
-        if (dev->deviceGrab.grab->window == win ||
-            IsParent(dev->deviceGrab.grab->window, win))
-            return FALSE;
-        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
-        (*dev->deviceGrab.DeactivateGrab)(dev);
-    }
-
-    memset(&event, 0, sizeof(DeviceEvent));
-    event.header = ET_Internal;
-    event.type = ET_Enter;
-    event.length = sizeof(DeviceEvent);
-    event.time = GetTimeInMillis();
-    event.deviceid = dev->id;
-    event.sourceid = dev->id;
-    event.detail.button = 0;
-    rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
-    if (rc)
-        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveGrab);
-
-    return rc;
-}
-
-/**
- * Update the sprite coordinates based on the event. Update the cursor
- * position, then update the event with the new coordinates that may have been
- * changed. If the window underneath the sprite has changed, change to new
- * cursor and send enter/leave events.
- *
- * CheckMotion() will not do anything and return FALSE if the event is not a
- * pointer event.
- *
- * @return TRUE if the sprite has moved or FALSE otherwise.
- */
-Bool
-CheckMotion(DeviceEvent *ev, DeviceIntPtr pDev)
-{
-    WindowPtr prevSpriteWin, newSpriteWin;
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    CHECKEVENT(ev);
-
-    prevSpriteWin = pSprite->win;
-
-    if (ev && !syncEvents.playingEvents)
-    {
-        /* GetPointerEvents() guarantees that pointer events have the correct
-           rootX/Y set already. */
-        switch (ev->type)
-        {
-            case ET_ButtonPress:
-            case ET_ButtonRelease:
-            case ET_Motion:
-                break;
-            default:
-                /* all other events return FALSE */
-                return FALSE;
-        }
-
-
-#ifdef PANORAMIX
-        if (!noPanoramiXExtension)
-        {
-            /* Motion events entering DIX get translated to Screen 0
-               coordinates.  Replayed events have already been
-               translated since they've entered DIX before */
-            ev->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
-                                       panoramiXdataPtr[0].x;
-            ev->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
-                                       panoramiXdataPtr[0].y;
-        } else
-#endif
-        {
-            if (pSprite->hot.pScreen != pSprite->hotPhys.pScreen)
-            {
-                pSprite->hot.pScreen = pSprite->hotPhys.pScreen;
-                RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
-            }
-        }
-
-        pSprite->hot.x = ev->root_x;
-        pSprite->hot.y = ev->root_y;
-        if (pSprite->hot.x < pSprite->physLimits.x1)
-            pSprite->hot.x = pSprite->physLimits.x1;
-        else if (pSprite->hot.x >= pSprite->physLimits.x2)
-            pSprite->hot.x = pSprite->physLimits.x2 - 1;
-        if (pSprite->hot.y < pSprite->physLimits.y1)
-            pSprite->hot.y = pSprite->physLimits.y1;
-        else if (pSprite->hot.y >= pSprite->physLimits.y2)
-            pSprite->hot.y = pSprite->physLimits.y2 - 1;
-	if (pSprite->hotShape)
-	    ConfineToShape(pDev, pSprite->hotShape, &pSprite->hot.x, &pSprite->hot.y);
-	pSprite->hotPhys = pSprite->hot;
-
-	if ((pSprite->hotPhys.x != ev->root_x) ||
-	    (pSprite->hotPhys.y != ev->root_y))
-	{
-#ifdef PANORAMIX
-            if (!noPanoramiXExtension)
-            {
-                XineramaSetCursorPosition(
-                        pDev, pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
-            } else
-#endif
-            {
-                (*pSprite->hotPhys.pScreen->SetCursorPosition)(
-                        pDev, pSprite->hotPhys.pScreen,
-                        pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
-            }
-	}
-
-	ev->root_x = pSprite->hot.x;
-	ev->root_y = pSprite->hot.y;
-    }
-
-    newSpriteWin = XYToWindow(pDev, pSprite->hot.x, pSprite->hot.y);
-
-    if (newSpriteWin != prevSpriteWin)
-    {
-        int sourceid;
-        if (!ev) {
-            UpdateCurrentTimeIf();
-            sourceid = pDev->id; /* when from WindowsRestructured */
-        } else
-            sourceid = ev->sourceid;
-
-	if (prevSpriteWin != NullWindow) {
-            if (!ActivateEnterGrab(pDev, prevSpriteWin, newSpriteWin))
-                DoEnterLeaveEvents(pDev, sourceid, prevSpriteWin,
-                                   newSpriteWin, NotifyNormal);
-        }
-        /* set pSprite->win after ActivateEnterGrab, otherwise
-           sprite window == grab_window and no enter/leave events are
-           sent. */
-        pSprite->win = newSpriteWin;
-        PostNewCursor(pDev);
-        return FALSE;
-    }
-    return TRUE;
-}
-
-/**
- * Windows have restructured, we need to update the sprite position and the
- * sprite's cursor.
- */
-void
-WindowsRestructured(void)
-{
-    DeviceIntPtr pDev = inputInfo.devices;
-    while(pDev)
-    {
-        if (IsMaster(pDev) || !pDev->u.master)
-            CheckMotion(NULL, pDev);
-        pDev = pDev->next;
-    }
-}
-
-#ifdef PANORAMIX
-/* This was added to support reconfiguration under Xdmx.  The problem is
- * that if the 0th screen (i.e., WindowTable[0]) is moved to an origin
- * other than 0,0, the information in the private sprite structure must
- * be updated accordingly, or XYToWindow (and other routines) will not
- * compute correctly. */
-void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)
-{
-    GrabPtr   grab;
-    DeviceIntPtr pDev;
-    SpritePtr pSprite;
-
-    if (noPanoramiXExtension) return;
-
-    pDev = inputInfo.devices;
-    while(pDev)
-    {
-        if (DevHasCursor(pDev))
-        {
-            pSprite = pDev->spriteInfo->sprite;
-            pSprite->hot.x        -= xoff;
-            pSprite->hot.y        -= yoff;
-
-            pSprite->hotPhys.x    -= xoff;
-            pSprite->hotPhys.y    -= yoff;
-
-            pSprite->hotLimits.x1 -= xoff;
-            pSprite->hotLimits.y1 -= yoff;
-            pSprite->hotLimits.x2 -= xoff;
-            pSprite->hotLimits.y2 -= yoff;
-
-            if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg1))
-                REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1,    xoff, yoff);
-            if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg2))
-                REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2,    xoff, yoff);
-
-            /* FIXME: if we call ConfineCursorToWindow, must we do anything else? */
-            if ((grab = pDev->deviceGrab.grab) && grab->confineTo) {
-                if (grab->confineTo->drawable.pScreen
-                        != pSprite->hotPhys.pScreen)
-                    pSprite->hotPhys.x = pSprite->hotPhys.y = 0;
-                ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
-            } else
-                ConfineCursorToWindow(
-                        pDev,
-                        WindowTable[pSprite->hotPhys.pScreen->myNum],
-                        TRUE, FALSE);
-
-        }
-        pDev = pDev->next;
-    }
-}
-#endif
-
-/**
- * Initialize a sprite for the given device and set it to some sane values. If
- * the device already has a sprite alloc'd, don't realloc but just reset to
- * default values.
- * If a window is supplied, the sprite will be initialized with the window's
- * cursor and positioned in the center of the window's screen. The root window
- * is a good choice to pass in here.
- *
- * It's a good idea to call it only for pointer devices, unless you have a
- * really talented keyboard.
- *
- * @param pDev The device to initialize.
- * @param pWin The window where to generate the sprite in.
- *
- */
-void
-InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin)
-{
-    SpritePtr pSprite;
-    ScreenPtr pScreen;
-    CursorPtr pCursor;
-
-    if (!pDev->spriteInfo->sprite)
-    {
-        DeviceIntPtr it;
-
-        pDev->spriteInfo->sprite = (SpritePtr)xcalloc(1, sizeof(SpriteRec));
-        if (!pDev->spriteInfo->sprite)
-            FatalError("InitializeSprite: failed to allocate sprite struct");
-
-        /* We may have paired another device with this device before our
-         * device had a actual sprite. We need to check for this and reset the
-         * sprite field for all paired devices.
-         *
-         * The VCK is always paired with the VCP before the VCP has a sprite.
-         */
-        for (it = inputInfo.devices; it; it = it->next)
-        {
-            if (it->spriteInfo->paired == pDev)
-                it->spriteInfo->sprite = pDev->spriteInfo->sprite;
-        }
-        if (inputInfo.keyboard->spriteInfo->paired == pDev)
-            inputInfo.keyboard->spriteInfo->sprite = pDev->spriteInfo->sprite;
-    }
-
-    pSprite = pDev->spriteInfo->sprite;
-    pDev->spriteInfo->spriteOwner = TRUE;
-
-    pScreen = (pWin) ? pWin->drawable.pScreen : (ScreenPtr)NULL;
-    pSprite->hot.pScreen = pScreen;
-    pSprite->hotPhys.pScreen = pScreen;
-    if (pScreen)
-    {
-        pSprite->hotPhys.x = pScreen->width / 2;
-        pSprite->hotPhys.y = pScreen->height / 2;
-        pSprite->hotLimits.x2 = pScreen->width;
-        pSprite->hotLimits.y2 = pScreen->height;
-    }
-
-    pSprite->hot = pSprite->hotPhys;
-    pSprite->win = pWin;
-
-    if (pWin)
-    {
-	pCursor = wCursor(pWin);
-	pSprite->spriteTrace = (WindowPtr *)xcalloc(1, 32*sizeof(WindowPtr));
-	if (!pSprite->spriteTrace)
-	    FatalError("Failed to allocate spriteTrace");
-	pSprite->spriteTraceSize = 32;
-
-	RootWindow(pDev) = pWin;
-	pSprite->spriteTraceGood = 1;
-
-	pSprite->pEnqueueScreen = pScreen;
-	pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
-
-    } else {
-        pCursor = NullCursor;
-	pSprite->spriteTrace = NULL;
-	pSprite->spriteTraceSize = 0;
-	pSprite->spriteTraceGood = 0;
-	pSprite->pEnqueueScreen = screenInfo.screens[0];
-	pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
-    }
-    if (pCursor)
-	pCursor->refcnt++;
-    if (pSprite->current)
-	FreeCursor(pSprite->current, None);
-    pSprite->current = pCursor;
-
-    if (pScreen)
-    {
-        (*pScreen->RealizeCursor) ( pDev, pScreen, pSprite->current);
-        (*pScreen->CursorLimits) ( pDev, pScreen, pSprite->current,
-                                   &pSprite->hotLimits, &pSprite->physLimits);
-        pSprite->confined = FALSE;
-
-        (*pScreen->ConstrainCursor) (pDev, pScreen,
-                                     &pSprite->physLimits);
-        (*pScreen->SetCursorPosition) (pDev, pScreen, pSprite->hot.x,
-                                       pSprite->hot.y,
-                                       FALSE);
-        (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
-    }
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension) {
-        pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
-        pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
-        pSprite->hotLimits.x2 = PanoramiXPixWidth  - panoramiXdataPtr[0].x;
-        pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
-        pSprite->physLimits = pSprite->hotLimits;
-        pSprite->confineWin = NullWindow;
-        pSprite->hotShape = NullRegion;
-        pSprite->screen = pScreen;
-        /* gotta UNINIT these someplace */
-        REGION_NULL(pScreen, &pSprite->Reg1);
-        REGION_NULL(pScreen, &pSprite->Reg2);
-    }
-#endif
-}
-
-/**
- * Update the mouse sprite info when the server switches from a pScreen to another.
- * Otherwise, the pScreen of the mouse sprite is never updated when we switch
- * from a pScreen to another. Never updating the pScreen of the mouse sprite
- * implies that windows that are in pScreen whose pScreen->myNum >0 will never
- * get pointer events. This is  because in CheckMotion(), sprite.hotPhys.pScreen
- * always points to the first pScreen it has been set by
- * DefineInitialRootWindow().
- *
- * Calling this function is useful for use cases where the server
- * has more than one pScreen.
- * This function is similar to DefineInitialRootWindow() but it does not
- * reset the mouse pointer position.
- * @param win must be the new pScreen we are switching to.
- */
-void
-UpdateSpriteForScreen(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    SpritePtr pSprite = NULL;
-    WindowPtr win = NULL;
-    CursorPtr pCursor;
-    if (!pScreen)
-        return ;
-
-    if (!pDev->spriteInfo->sprite)
-        return;
-
-    pSprite = pDev->spriteInfo->sprite;
-
-    win = WindowTable[pScreen->myNum];
-
-    pSprite->hotPhys.pScreen = pScreen;
-    pSprite->hot = pSprite->hotPhys;
-    pSprite->hotLimits.x2 = pScreen->width;
-    pSprite->hotLimits.y2 = pScreen->height;
-    pSprite->win = win;
-    pCursor = wCursor(win);
-    if (pCursor)
-	pCursor->refcnt++;
-    if (pSprite->current)
-	FreeCursor(pSprite->current, 0);
-    pSprite->current = pCursor;
-    pSprite->spriteTraceGood = 1;
-    pSprite->spriteTrace[0] = win;
-    (*pScreen->CursorLimits) (pDev,
-                              pScreen,
-                              pSprite->current,
-                              &pSprite->hotLimits,
-                              &pSprite->physLimits);
-    pSprite->confined = FALSE;
-    (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits);
-    (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension) {
-        pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
-        pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
-        pSprite->hotLimits.x2 = PanoramiXPixWidth  - panoramiXdataPtr[0].x;
-        pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
-        pSprite->physLimits = pSprite->hotLimits;
-        pSprite->screen = pScreen;
-    }
-#endif
-}
-
-/*
- * This does not take any shortcuts, and even ignores its argument, since
- * it does not happen very often, and one has to walk up the tree since
- * this might be a newly instantiated cursor for an intermediate window
- * between the one the pointer is in and the one that the last cursor was
- * instantiated from.
- */
-void
-WindowHasNewCursor(WindowPtr pWin)
-{
-    DeviceIntPtr pDev;
-
-    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
-        if (DevHasCursor(pDev))
-            PostNewCursor(pDev);
-}
-
-void
-NewCurrentScreen(DeviceIntPtr pDev, ScreenPtr newScreen, int x, int y)
-{
-    SpritePtr pSprite = pDev->spriteInfo->sprite;
-
-    pSprite->hotPhys.x = x;
-    pSprite->hotPhys.y = y;
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension) {
-	pSprite->hotPhys.x += panoramiXdataPtr[newScreen->myNum].x -
-			    panoramiXdataPtr[0].x;
-	pSprite->hotPhys.y += panoramiXdataPtr[newScreen->myNum].y -
-			    panoramiXdataPtr[0].y;
-	if (newScreen != pSprite->screen) {
-	    pSprite->screen = newScreen;
-	    /* Make sure we tell the DDX to update its copy of the screen */
-	    if(pSprite->confineWin)
-		XineramaConfineCursorToWindow(pDev,
-                        pSprite->confineWin, TRUE);
-	    else
-		XineramaConfineCursorToWindow(pDev, WindowTable[0], TRUE);
-	    /* if the pointer wasn't confined, the DDX won't get
-	       told of the pointer warp so we reposition it here */
-	    if(!syncEvents.playingEvents)
-		(*pSprite->screen->SetCursorPosition)(
-                                                      pDev,
-                                                      pSprite->screen,
-		    pSprite->hotPhys.x + panoramiXdataPtr[0].x -
-			panoramiXdataPtr[pSprite->screen->myNum].x,
-		    pSprite->hotPhys.y + panoramiXdataPtr[0].y -
-			panoramiXdataPtr[pSprite->screen->myNum].y, FALSE);
-	}
-    } else
-#endif
-    if (newScreen != pSprite->hotPhys.pScreen)
-	ConfineCursorToWindow(pDev, WindowTable[newScreen->myNum],
-                TRUE, FALSE);
-}
-
-#ifdef PANORAMIX
-
-static Bool
-XineramaPointInWindowIsVisible(
-    WindowPtr pWin,
-    int x,
-    int y
-)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    BoxRec box;
-    int i, xoff, yoff;
-
-    if (!pWin->realized) return FALSE;
-
-    if (POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box))
-        return TRUE;
-
-    if(!XineramaSetWindowPntrs(inputInfo.pointer, pWin)) return FALSE;
-
-    xoff = x + panoramiXdataPtr[0].x;
-    yoff = y + panoramiXdataPtr[0].y;
-
-    for(i = 1; i < PanoramiXNumScreens; i++) {
-	pWin = inputInfo.pointer->spriteInfo->sprite->windows[i];
-	pScreen = pWin->drawable.pScreen;
-	x = xoff - panoramiXdataPtr[i].x;
-	y = yoff - panoramiXdataPtr[i].y;
-
-	if(POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box)
-	   && (!wInputShape(pWin) ||
-	       POINT_IN_REGION(pWin->drawable.pScreen,
-			       wInputShape(pWin),
-			       x - pWin->drawable.x,
-			       y - pWin->drawable.y, &box)))
-            return TRUE;
-
-    }
-
-    return FALSE;
-}
-
-static int
-XineramaWarpPointer(ClientPtr client)
-{
-    WindowPtr	dest = NULL;
-    int		x, y, rc;
-    SpritePtr   pSprite = PickPointer(client)->spriteInfo->sprite;
-
-    REQUEST(xWarpPointerReq);
-
-
-    if (stuff->dstWid != None) {
-	rc = dixLookupWindow(&dest, stuff->dstWid, client, DixReadAccess);
-	if (rc != Success)
-	    return rc;
-    }
-    x = pSprite->hotPhys.x;
-    y = pSprite->hotPhys.y;
-
-    if (stuff->srcWid != None)
-    {
-	int     winX, winY;
-	XID	winID = stuff->srcWid;
-        WindowPtr source;
-
-	rc = dixLookupWindow(&source, winID, client, DixReadAccess);
-	if (rc != Success)
-	    return rc;
-
-	winX = source->drawable.x;
-	winY = source->drawable.y;
-	if(source == WindowTable[0]) {
-	    winX -= panoramiXdataPtr[0].x;
-	    winY -= panoramiXdataPtr[0].y;
-	}
-	if (x < winX + stuff->srcX ||
-	    y < winY + stuff->srcY ||
-	    (stuff->srcWidth != 0 &&
-	     winX + stuff->srcX + (int)stuff->srcWidth < x) ||
-	    (stuff->srcHeight != 0 &&
-	     winY + stuff->srcY + (int)stuff->srcHeight < y) ||
-	    !XineramaPointInWindowIsVisible(source, x, y))
-	    return Success;
-    }
-    if (dest) {
-	x = dest->drawable.x;
-	y = dest->drawable.y;
-	if(dest == WindowTable[0]) {
-	    x -= panoramiXdataPtr[0].x;
-	    y -= panoramiXdataPtr[0].y;
-	}
-    }
-
-    x += stuff->dstX;
-    y += stuff->dstY;
-
-    if (x < pSprite->physLimits.x1)
-	x = pSprite->physLimits.x1;
-    else if (x >= pSprite->physLimits.x2)
-	x = pSprite->physLimits.x2 - 1;
-    if (y < pSprite->physLimits.y1)
-	y = pSprite->physLimits.y1;
-    else if (y >= pSprite->physLimits.y2)
-	y = pSprite->physLimits.y2 - 1;
-    if (pSprite->hotShape)
-	ConfineToShape(PickPointer(client), pSprite->hotShape, &x, &y);
-
-    XineramaSetCursorPosition(PickPointer(client), x, y, TRUE);
-
-    return Success;
-}
-
-#endif
-
-
-/**
- * Server-side protocol handling for WarpPointer request.
- * Warps the cursor position to the coordinates given in the request.
- */
-int
-ProcWarpPointer(ClientPtr client)
-{
-    WindowPtr	dest = NULL;
-    int		x, y, rc;
-    ScreenPtr	newScreen;
-    DeviceIntPtr dev, tmp;
-    SpritePtr   pSprite;
-
-    REQUEST(xWarpPointerReq);
-    REQUEST_SIZE_MATCH(xWarpPointerReq);
-
-    dev = PickPointer(client);
-
-    for (tmp = inputInfo.devices; tmp; tmp = tmp->next) {
-        if ((tmp == dev) || (!IsMaster(tmp) && tmp->u.master == dev)) {
-	    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixWriteAccess);
-	    if (rc != Success)
-		return rc;
-	}
-    }
-
-    if (dev->u.lastSlave)
-        dev = dev->u.lastSlave;
-    pSprite = dev->spriteInfo->sprite;
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension)
-	return XineramaWarpPointer(client);
-#endif
-
-    if (stuff->dstWid != None) {
-	rc = dixLookupWindow(&dest, stuff->dstWid, client, DixGetAttrAccess);
-	if (rc != Success)
-	    return rc;
-    }
-    x = pSprite->hotPhys.x;
-    y = pSprite->hotPhys.y;
-
-    if (stuff->srcWid != None)
-    {
-	int     winX, winY;
-	XID	winID = stuff->srcWid;
-        WindowPtr source;
-
-	rc = dixLookupWindow(&source, winID, client, DixGetAttrAccess);
-	if (rc != Success)
-	    return rc;
-
-	winX = source->drawable.x;
-	winY = source->drawable.y;
-	if (source->drawable.pScreen != pSprite->hotPhys.pScreen ||
-	    x < winX + stuff->srcX ||
-	    y < winY + stuff->srcY ||
-	    (stuff->srcWidth != 0 &&
-	     winX + stuff->srcX + (int)stuff->srcWidth < x) ||
-	    (stuff->srcHeight != 0 &&
-	     winY + stuff->srcY + (int)stuff->srcHeight < y) ||
-	    !PointInWindowIsVisible(source, x, y))
-	    return Success;
-    }
-    if (dest)
-    {
-	x = dest->drawable.x;
-	y = dest->drawable.y;
-	newScreen = dest->drawable.pScreen;
-    } else
-	newScreen = pSprite->hotPhys.pScreen;
-
-    x += stuff->dstX;
-    y += stuff->dstY;
-
-    if (x < 0)
-	x = 0;
-    else if (x >= newScreen->width)
-	x = newScreen->width - 1;
-    if (y < 0)
-	y = 0;
-    else if (y >= newScreen->height)
-	y = newScreen->height - 1;
-
-    if (newScreen == pSprite->hotPhys.pScreen)
-    {
-	if (x < pSprite->physLimits.x1)
-	    x = pSprite->physLimits.x1;
-	else if (x >= pSprite->physLimits.x2)
-	    x = pSprite->physLimits.x2 - 1;
-	if (y < pSprite->physLimits.y1)
-	    y = pSprite->physLimits.y1;
-	else if (y >= pSprite->physLimits.y2)
-	    y = pSprite->physLimits.y2 - 1;
-	if (pSprite->hotShape)
-	    ConfineToShape(dev, pSprite->hotShape, &x, &y);
-        (*newScreen->SetCursorPosition)(dev, newScreen, x, y, TRUE);
-    }
-    else if (!PointerConfinedToScreen(dev))
-    {
-	NewCurrentScreen(dev, newScreen, x, y);
-    }
-    return Success;
-}
-
-static Bool
-BorderSizeNotEmpty(DeviceIntPtr pDev, WindowPtr pWin)
-{
-     if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->hotPhys.pScreen, &pWin->borderSize))
-	return TRUE;
-
-#ifdef PANORAMIX
-     if(!noPanoramiXExtension && XineramaSetWindowPntrs(pDev, pWin)) {
-	int i;
-
-	for(i = 1; i < PanoramiXNumScreens; i++) {
-	    if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->screen,
-                        &pDev->spriteInfo->sprite->windows[i]->borderSize))
-		return TRUE;
-	}
-     }
-#endif
-     return FALSE;
-}
-
-/**
- * "CheckPassiveGrabsOnWindow" checks to see if the event passed in causes a
- * passive grab set on the window to be activated.
- * If a passive grab is activated, the event will be delivered to the client.
- *
- * @param pWin The window that may be subject to a passive grab.
- * @param device Device that caused the event.
- * @param event The current device event.
- * @param checkCore Check for core grabs too.
- */
-
-static Bool
-CheckPassiveGrabsOnWindow(
-    WindowPtr pWin,
-    DeviceIntPtr device,
-    DeviceEvent *event,
-    BOOL checkCore)
-{
-    GrabPtr grab = wPassiveGrabs(pWin);
-    GrabRec tempGrab;
-    GrabInfoPtr grabinfo;
-#define CORE_MATCH      0x1
-#define XI_MATCH        0x2
-#define XI2_MATCH        0x4
-    int match = 0;
-
-    if (device->deviceGrab.grab)
-        return FALSE;
-
-    if (!grab)
-	return FALSE;
-    /* Fill out the grab details, but leave the type for later before
-     * comparing */
-    tempGrab.window = pWin;
-    tempGrab.device = device;
-    tempGrab.detail.exact = event->detail.key;
-    tempGrab.detail.pMask = NULL;
-    tempGrab.modifiersDetail.pMask = NULL;
-    tempGrab.next = NULL;
-    for (; grab; grab = grab->next)
-    {
-	DeviceIntPtr	gdev;
-	XkbSrvInfoPtr	xkbi = NULL;
-	Mask		mask = 0;
-
-	gdev= grab->modifierDevice;
-        if (grab->grabtype == GRABTYPE_CORE)
-        {
-            if (IsPointerDevice(device))
-                gdev = GetPairedDevice(device);
-            else
-                gdev = device;
-        } else if (grab->grabtype == GRABTYPE_XI2)
-        {
-            /* if the device is an attached slave device, gdev must be the
-             * attached master keyboard. Since the slave may have been
-             * reattached after the grab, the modifier device may not be the
-             * same. */
-            if (!IsMaster(grab->device) && device->u.master)
-                gdev = GetMaster(device, MASTER_KEYBOARD);
-        }
-
-
-        if (gdev && gdev->key)
-            xkbi= gdev->key->xkbInfo;
-	tempGrab.modifierDevice = grab->modifierDevice;
-        tempGrab.modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0;
-
-        /* Check for XI2 and XI grabs first */
-        tempGrab.type = GetXI2Type((InternalEvent*)event);
-        tempGrab.grabtype = GRABTYPE_XI2;
-        if (GrabMatchesSecond(&tempGrab, grab, FALSE))
-            match = XI2_MATCH;
-
-        tempGrab.detail.exact = event->detail.key;
-        if (!match)
-        {
-            tempGrab.type = GetXIType((InternalEvent*)event);
-            tempGrab.grabtype = GRABTYPE_XI;
-            if (GrabMatchesSecond(&tempGrab, grab, FALSE))
-                match = XI_MATCH;
-        }
-
-        /* Check for a core grab (ignore the device when comparing) */
-        if (!match && checkCore)
-        {
-            tempGrab.grabtype = GRABTYPE_CORE;
-            if ((tempGrab.type = GetCoreType((InternalEvent*)event)) &&
-                (GrabMatchesSecond(&tempGrab, grab, TRUE)))
-                match = CORE_MATCH;
-        }
-
-        if (match && (!grab->confineTo ||
-	     (grab->confineTo->realized &&
-				BorderSizeNotEmpty(device, grab->confineTo))))
-	{
-            int rc, count = 0;
-            xEvent *xE = NULL;
-            xEvent core;
-
-            event->corestate &= 0x1f00;
-            event->corestate |= tempGrab.modifiersDetail.exact & (~0x1f00);
-            grabinfo = &device->deviceGrab;
-            /* In some cases a passive core grab may exist, but the client
-             * already has a core grab on some other device. In this case we
-             * must not get the grab, otherwise we may never ungrab the
-             * device.
-             */
-
-            if (grab->grabtype == GRABTYPE_CORE)
-            {
-                DeviceIntPtr other;
-                BOOL interfering = FALSE;
-
-                /* A passive grab may have been created for a different device
-                   than it is assigned to at this point in time.
-                   Update the grab's device and modifier device to reflect the
-                   current state.
-                   Since XGrabDeviceButton requires to specify the
-                   modifierDevice explicitly, we don't override this choice.
-                   */
-                if (tempGrab.type < GenericEvent)
-                {
-                    grab->device = device;
-                    grab->modifierDevice = GetPairedDevice(device);
-                }
-
-                for (other = inputInfo.devices; other; other = other->next)
-                {
-                    GrabPtr othergrab = other->deviceGrab.grab;
-                    if (othergrab && othergrab->grabtype == GRABTYPE_CORE &&
-                        SameClient(grab, rClient(othergrab)) &&
-                        ((IsPointerDevice(grab->device) &&
-                         IsPointerDevice(othergrab->device)) ||
-                         (IsKeyboardDevice(grab->device) &&
-                          IsKeyboardDevice(othergrab->device))))
-                    {
-                        interfering = TRUE;
-                        break;
-                    }
-                }
-                if (interfering)
-                    continue;
-            }
-
-
-            if (match & CORE_MATCH)
-            {
-                rc = EventToCore((InternalEvent*)event, &core);
-                if (rc != Success)
-                {
-                    if (rc != BadMatch)
-                        ErrorF("[dix] %s: core conversion failed in CPGFW "
-                                "(%d, %d).\n", device->name, event->type, rc);
-                    continue;
-                }
-                xE = &core;
-                count = 1;
-                mask = grab->eventMask;
-                if (grab->ownerEvents)
-                    mask |= pWin->eventMask;
-            } else if (match & XI2_MATCH)
-            {
-                rc = EventToXI2((InternalEvent*)event, &xE);
-                if (rc != Success)
-                {
-                    if (rc != BadMatch)
-                        ErrorF("[dix] %s: XI2 conversion failed in CPGFW "
-                                "(%d, %d).\n", device->name, event->type, rc);
-                    continue;
-                }
-                count = 1;
-
-                /* FIXME: EventToXI2 returns NULL for enter events, so
-                 * dereferencing the event is bad. Internal event types are
-                 * aligned with core events, so the else clause is valid.
-                 * long-term we should use internal events for enter/focus
-                 * as well */
-                if (xE)
-                    mask = grab->xi2mask[device->id][((xGenericEvent*)xE)->evtype/8];
-                else if (event->type == XI_Enter || event->type == XI_FocusIn)
-                    mask = grab->xi2mask[device->id][event->type/8];
-
-                if (grab->ownerEvents && wOtherInputMasks(grab->window))
-                {
-                    InputClientsPtr icp =
-                        wOtherInputMasks(grab->window)->inputClients;
-
-                    while(icp)
-                    {
-                        if (rClient(icp) == rClient(grab))
-                        {
-                            int evtype = (xE) ? ((xGenericEvent*)xE)->evtype : event->type;
-                            mask |= icp->xi2mask[device->id][evtype/8];
-                            break;
-                        }
-
-                        icp = icp->next;
-                    }
-                }
-            } else
-            {
-                rc = EventToXI((InternalEvent*)event, &xE, &count);
-                if (rc != Success)
-                {
-                    if (rc != BadMatch)
-                        ErrorF("[dix] %s: XI conversion failed in CPGFW "
-                                "(%d, %d).\n", device->name, event->type, rc);
-                    continue;
-                }
-                mask = grab->eventMask;
-                if (grab->ownerEvents && wOtherInputMasks(grab->window))
-                {
-                    InputClientsPtr icp =
-                        wOtherInputMasks(grab->window)->inputClients;
-
-                    while(icp)
-                    {
-                        if (rClient(icp) == rClient(grab))
-                        {
-                            mask |= icp->mask[device->id];
-                            break;
-                        }
-
-                        icp = icp->next;
-                    }
-                }
-            }
-
-	    (*grabinfo->ActivateGrab)(device, grab, currentTime, TRUE);
-
-            if (xE)
-            {
-                FixUpEventFromWindow(device, xE, grab->window, None, TRUE);
-
-                TryClientEvents(rClient(grab), device, xE, count, mask,
-                                       GetEventFilter(device, xE), grab);
-            }
-
-	    if (grabinfo->sync.state == FROZEN_NO_EVENT)
-	    {
-                if (!grabinfo->sync.event)
-                    grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
-                *grabinfo->sync.event = *event;
-		grabinfo->sync.state = FROZEN_WITH_EVENT;
-            }
-
-            if (match & (XI_MATCH | XI2_MATCH))
-                xfree(xE); /* on core match xE == &core */
-	    return TRUE;
-	}
-    }
-    return FALSE;
-#undef CORE_MATCH
-#undef XI_MATCH
-#undef XI2_MATCH
-}
-
-/**
- * CheckDeviceGrabs handles both keyboard and pointer events that may cause
- * a passive grab to be activated.
- *
- * If the event is a keyboard event, the ancestors of the focus window are
- * traced down and tried to see if they have any passive grabs to be
- * activated.  If the focus window itself is reached and it's descendants
- * contain the pointer, the ancestors of the window that the pointer is in
- * are then traced down starting at the focus window, otherwise no grabs are
- * activated.
- * If the event is a pointer event, the ancestors of the window that the
- * pointer is in are traced down starting at the root until CheckPassiveGrabs
- * causes a passive grab to activate or all the windows are
- * tried. PRH
- *
- * If a grab is activated, the event has been sent to the client already!
- *
- * The event we pass in must always be an XI event. From this, we then emulate
- * the core event and then check for grabs.
- *
- * @param device The device that caused the event.
- * @param xE The event to handle (Device{Button|Key}Press).
- * @param count Number of events in list.
- * @return TRUE if a grab has been activated or false otherwise.
-*/
-
-Bool
-CheckDeviceGrabs(DeviceIntPtr device, DeviceEvent *event, int checkFirst)
-{
-    int i;
-    WindowPtr pWin = NULL;
-    FocusClassPtr focus = IsPointerEvent((InternalEvent*)event) ? NULL : device->focus;
-    BOOL sendCore = (IsMaster(device) && device->coreEvents);
-
-    if (event->type != ET_ButtonPress &&
-        event->type != ET_KeyPress)
-        return FALSE;
-
-    if (event->type == ET_ButtonPress
-        && (device->button->buttonsDown != 1))
-	return FALSE;
-
-    i = checkFirst;
-
-    if (focus)
-    {
-	for (; i < focus->traceGood; i++)
-	{
-	    pWin = focus->trace[i];
-	    if (pWin->optional &&
-	        CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
-		return TRUE;
-	}
-
-	if ((focus->win == NoneWin) ||
-	    (i >= device->spriteInfo->sprite->spriteTraceGood) ||
-	    ((i > checkFirst) &&
-             (pWin != device->spriteInfo->sprite->spriteTrace[i-1])))
-	    return FALSE;
-    }
-
-    for (; i < device->spriteInfo->sprite->spriteTraceGood; i++)
-    {
-	pWin = device->spriteInfo->sprite->spriteTrace[i];
-	if (pWin->optional &&
-	    CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
-	    return TRUE;
-    }
-
-    return FALSE;
-}
-
-/**
- * Called for keyboard events to deliver event to whatever client owns the
- * focus.
- *
- * The event is delivered to the keyboard's focus window, the root window or
- * to the window owning the input focus.
- *
- * @param keybd The keyboard originating the event.
- * @param event The event, not yet in wire format.
- * @param window Window underneath the sprite.
- */
-void
-DeliverFocusedEvent(DeviceIntPtr keybd, InternalEvent *event, WindowPtr window)
-{
-    DeviceIntPtr ptr;
-    WindowPtr focus = keybd->focus->win;
-    BOOL sendCore = (IsMaster(keybd) && keybd->coreEvents);
-    xEvent core;
-    xEvent *xE = NULL, *xi2 = NULL;
-    int count, rc;
-    int deliveries = 0;
-
-    if (focus == FollowKeyboardWin)
-	focus = inputInfo.keyboard->focus->win;
-    if (!focus)
-	return;
-    if (focus == PointerRootWin)
-    {
-	DeliverDeviceEvents(window, event, NullGrab, NullWindow, keybd);
-	return;
-    }
-    if ((focus == window) || IsParent(focus, window))
-    {
-	if (DeliverDeviceEvents(window, event, NullGrab, focus, keybd))
-	    return;
-    }
-
-    /* just deliver it to the focus window */
-    ptr = GetPairedDevice(keybd);
-
-
-    rc = EventToXI2(event, &xi2);
-    if (rc == Success)
-    {
-        /* XXX: XACE */
-        int filter = GetEventFilter(keybd, xi2);
-        FixUpEventFromWindow(ptr, xi2, focus, None, FALSE);
-        deliveries = DeliverEventsToWindow(keybd, focus, xi2, 1,
-                                           filter, NullGrab);
-        if (deliveries > 0)
-            goto unwind;
-    } else if (rc != BadMatch)
-        ErrorF("[dix] %s: XI2 conversion failed in DFE (%d, %d). Skipping delivery.\n",
-               keybd->name, event->any.type, rc);
-
-    rc = EventToXI(event, &xE, &count);
-    if (rc == Success &&
-        XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, xE, count) == Success)
-    {
-        FixUpEventFromWindow(ptr, xE, focus, None, FALSE);
-        deliveries = DeliverEventsToWindow(keybd, focus, xE, count,
-                GetEventFilter(keybd, xE),
-                NullGrab);
-
-        if (deliveries > 0)
-            goto unwind;
-    } else if (rc != BadMatch)
-        ErrorF("[dix] %s: XI conversion failed in DFE (%d, %d). Skipping delivery.\n",
-               keybd->name, event->any.type, rc);
-
-    if (sendCore)
-    {
-        rc = EventToCore(event, &core);
-        if (rc == Success) {
-            if (XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, &core, 1) == Success) {
-                FixUpEventFromWindow(keybd, &core, focus, None, FALSE);
-                deliveries = DeliverEventsToWindow(keybd, focus, &core, 1,
-                                                   GetEventFilter(keybd, &core),
-                                                   NullGrab);
-            }
-        } else if (rc != BadMatch)
-            ErrorF("[dix] %s: core conversion failed DFE (%d, %d). Skipping delivery.\n",
-                    keybd->name, event->any.type, rc);
-    }
-
-unwind:
-    if (xE)
-        xfree(xE);
-    if (xi2)
-        xfree(xi2);
-    return;
-}
-
-/**
- * Deliver an event from a device that is currently grabbed. Uses
- * DeliverDeviceEvents() for further delivery if a ownerEvents is set on the
- * grab. If not, TryClientEvents() is used.
- *
- * @param deactivateGrab True if the device's grab should be deactivated.
- */
-void
-DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
-                    Bool deactivateGrab)
-{
-    GrabPtr grab;
-    GrabInfoPtr grabinfo;
-    int deliveries = 0;
-    DeviceIntPtr dev;
-    SpritePtr pSprite = thisDev->spriteInfo->sprite;
-    BOOL sendCore = FALSE;
-    int rc, count = 0;
-    xEvent *xi = NULL;
-    xEvent *xi2 = NULL;
-
-    grabinfo = &thisDev->deviceGrab;
-    grab = grabinfo->grab;
-
-    if (grab->ownerEvents)
-    {
-	WindowPtr focus;
-
-        /* Hack: Some pointer device have a focus class. So we need to check
-         * for the type of event, to see if we really want to deliver it to
-         * the focus window. For pointer events, the answer is no.
-         */
-        if (IsPointerEvent(event))
-            focus = PointerRootWin;
-        else if (thisDev->focus)
-	{
-	    focus = thisDev->focus->win;
-	    if (focus == FollowKeyboardWin)
-		focus = inputInfo.keyboard->focus->win;
-	}
-	else
-	    focus = PointerRootWin;
-	if (focus == PointerRootWin)
-	    deliveries = DeliverDeviceEvents(pSprite->win, event, grab,
-                                             NullWindow, thisDev);
-	else if (focus && (focus == pSprite->win ||
-                    IsParent(focus, pSprite->win)))
-	    deliveries = DeliverDeviceEvents(pSprite->win, event, grab, focus,
-					     thisDev);
-	else if (focus)
-	    deliveries = DeliverDeviceEvents(focus, event, grab, focus,
-					     thisDev);
-    }
-    if (!deliveries)
-    {
-        Mask mask;
-
-        /* XXX: In theory, we could pass the internal events through to
-         * everything and only convert just before hitting the wire. We can't
-         * do that yet, so DGE is the last stop for internal events. From here
-         * onwards, we deal with core/XI events.
-         */
-
-        mask = grab->eventMask;
-
-        sendCore = (IsMaster(thisDev) && thisDev->coreEvents);
-        /* try core event */
-        if (sendCore && grab->grabtype == GRABTYPE_CORE)
-        {
-            xEvent core;
-
-            rc = EventToCore(event, &core);
-            if (rc == Success)
-            {
-                FixUpEventFromWindow(thisDev, &core, grab->window,
-                        None, TRUE);
-                if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
-                            grab->window, &core, 1) ||
-                        XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
-                            grab->window, &core, 1))
-                    deliveries = 1; /* don't send, but pretend we did */
-                else if (!IsInterferingGrab(rClient(grab), thisDev, &core))
-                {
-                    deliveries = TryClientEvents(rClient(grab), thisDev,
-                            &core, 1, mask,
-                            GetEventFilter(thisDev, &core),
-                            grab);
-                }
-            } else if (rc != BadMatch)
-                ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");
-        }
-
-        if (!deliveries)
-        {
-            rc = EventToXI2(event, &xi2);
-            if (rc == Success)
-            {
-                int evtype = ((xGenericEvent*)xi2)->evtype;
-                mask = grab->xi2mask[XIAllDevices][evtype/8] |
-                    grab->xi2mask[XIAllMasterDevices][evtype/8] |
-                    grab->xi2mask[thisDev->id][evtype/8];
-                /* try XI2 event */
-                FixUpEventFromWindow(thisDev, xi2, grab->window, None, TRUE);
-                /* XXX: XACE */
-                deliveries = TryClientEvents(rClient(grab), thisDev, xi2, 1, mask,
-                        GetEventFilter(thisDev, xi2), grab);
-            } else if (rc != BadMatch)
-                ErrorF("[dix] %s: XI2 conversion failed in DGE (%d, %d). Skipping delivery.\n",
-                        thisDev->name, event->any.type, rc);
-        }
-
-        if (!deliveries)
-        {
-            rc = EventToXI(event, &xi, &count);
-            if (rc == Success)
-            {
-                /* try XI event */
-                if (grabinfo->fromPassiveGrab  &&
-                        grabinfo->implicitGrab)
-                    mask = grab->deviceMask;
-                else
-                    mask = grab->eventMask;
-
-                FixUpEventFromWindow(thisDev, xi, grab->window,
-                        None, TRUE);
-
-                if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
-                            grab->window, xi, count) ||
-                        XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
-                            grab->window, xi, count))
-                    deliveries = 1; /* don't send, but pretend we did */
-                else
-                {
-                    deliveries =
-                        TryClientEvents(rClient(grab), thisDev,
-                                xi, count,
-                                mask,
-                                GetEventFilter(thisDev, xi),
-                                grab);
-                }
-            } else if (rc != BadMatch)
-                ErrorF("[dix] %s: XI conversion failed in DGE (%d, %d). Skipping delivery.\n",
-                        thisDev->name, event->any.type, rc);
-        }
-
-        if (deliveries && (event->any.type == ET_Motion))
-            thisDev->valuator->motionHintWindow = grab->window;
-    }
-    if (deliveries && !deactivateGrab && event->any.type != ET_Motion)
-    {
-	switch (grabinfo->sync.state)
-	{
-	case FREEZE_BOTH_NEXT_EVENT:
-	    for (dev = inputInfo.devices; dev; dev = dev->next)
-	    {
-		if (dev == thisDev)
-		    continue;
-		FreezeThaw(dev, TRUE);
-		if ((dev->deviceGrab.sync.state == FREEZE_BOTH_NEXT_EVENT) &&
-		    (CLIENT_BITS(grab->resource) ==
-		     CLIENT_BITS(dev->deviceGrab.grab->resource)))
-		    dev->deviceGrab.sync.state = FROZEN_NO_EVENT;
-		else
-                    dev->deviceGrab.sync.other = grab;
-	    }
-	    /* fall through */
-	case FREEZE_NEXT_EVENT:
-	    grabinfo->sync.state = FROZEN_WITH_EVENT;
-	    FreezeThaw(thisDev, TRUE);
-	    if (!grabinfo->sync.event)
-		grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
-	    *grabinfo->sync.event = event->device_event;
-	    break;
-	}
-    }
-
-    if (xi)
-        xfree(xi);
-    if (xi2)
-        xfree(xi2);
-}
-
-/* This function is used to set the key pressed or key released state -
-   this is only used when the pressing of keys does not cause
-   the device's processInputProc to be called, as in for example Mouse Keys.
-*/
-void
-FixKeyState (DeviceEvent *event, DeviceIntPtr keybd)
-{
-    int             key, bit;
-    BYTE   *kptr;
-    KeyClassPtr keyc = keybd->key;
-
-    key = event->detail.key;
-    kptr = &keyc->down[key >> 3];
-    bit = 1 << (key & 7);
-
-    if (event->type == ET_KeyPress) {
-	DebugF("FixKeyState: Key %d %s\n",key,
-               ((event->type == ET_KeyPress) ? "down" : "up"));
-    }
-
-    if (event->type == ET_KeyPress)
-	    *kptr |= bit;
-    else if (event->type == ET_KeyRelease)
-	    *kptr &= ~bit;
-    else
-        FatalError("Impossible keyboard event");
-}
-
-#define AtMostOneClient \
-	(SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask)
-#define ManagerMask \
-	(SubstructureRedirectMask | ResizeRedirectMask)
-
-/**
- * Recalculate which events may be deliverable for the given window.
- * Recalculated mask is used for quicker determination which events may be
- * delivered to a window.
- *
- * The otherEventMasks on a WindowOptional is the combination of all event
- * masks set by all clients on the window.
- * deliverableEventMask is the combination of the eventMask and the
- * otherEventMask plus the events that may be propagated to the parent.
- *
- * Traverses to siblings and parents of the window.
- */
-void
-RecalculateDeliverableEvents(WindowPtr pWin)
-{
-    OtherClients *others;
-    WindowPtr pChild;
-
-    pChild = pWin;
-    while (1)
-    {
-	if (pChild->optional)
-	{
-	    pChild->optional->otherEventMasks = 0;
-	    for (others = wOtherClients(pChild); others; others = others->next)
-	    {
-		pChild->optional->otherEventMasks |= others->mask;
-	    }
-	}
-	pChild->deliverableEvents = pChild->eventMask|
-				    wOtherEventMasks(pChild);
-	if (pChild->parent)
-	    pChild->deliverableEvents |=
-		(pChild->parent->deliverableEvents &
-		 ~wDontPropagateMask(pChild) & PropagateMask);
-	if (pChild->firstChild)
-	{
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    break;
-	pChild = pChild->nextSib;
-    }
-}
-
-/**
- *
- *  \param value must conform to DeleteType
- */
-int
-OtherClientGone(pointer value, XID id)
-{
-    OtherClientsPtr other, prev;
-    WindowPtr pWin = (WindowPtr)value;
-
-    prev = 0;
-    for (other = wOtherClients(pWin); other; other = other->next)
-    {
-	if (other->resource == id)
-	{
-	    if (prev)
-		prev->next = other->next;
-	    else
-	    {
-		if (!(pWin->optional->otherClients = other->next))
-		    CheckWindowOptionalNeed (pWin);
-	    }
-	    xfree(other);
-	    RecalculateDeliverableEvents(pWin);
-	    return(Success);
-	}
-	prev = other;
-    }
-    FatalError("client not on event list");
-    /*NOTREACHED*/
-    return -1; /* make compiler happy */
-}
-
-int
-EventSelectForWindow(WindowPtr pWin, ClientPtr client, Mask mask)
-{
-    Mask check;
-    OtherClients * others;
-    DeviceIntPtr dev;
-    int rc;
-
-    if (mask & ~AllEventMasks)
-    {
-	client->errorValue = mask;
-	return BadValue;
-    }
-    check = (mask & ManagerMask);
-    if (check) {
-	rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,
-		      RT_WINDOW, pWin, RT_NONE, NULL, DixManageAccess);
-	if (rc != Success)
-	    return rc;
-    }
-    check = (mask & AtMostOneClient);
-    if (check & (pWin->eventMask|wOtherEventMasks(pWin)))
-    {				       /* It is illegal for two different
-				          clients to select on any of the
-				          events for AtMostOneClient. However,
-				          it is OK, for some client to
-				          continue selecting on one of those
-				          events.  */
-	if ((wClient(pWin) != client) && (check & pWin->eventMask))
-	    return BadAccess;
-	for (others = wOtherClients (pWin); others; others = others->next)
-	{
-	    if (!SameClient(others, client) && (check & others->mask))
-		return BadAccess;
-	}
-    }
-    if (wClient (pWin) == client)
-    {
-	check = pWin->eventMask;
-	pWin->eventMask = mask;
-    }
-    else
-    {
-	for (others = wOtherClients (pWin); others; others = others->next)
-	{
-	    if (SameClient(others, client))
-	    {
-		check = others->mask;
-		if (mask == 0)
-		{
-		    FreeResource(others->resource, RT_NONE);
-		    return Success;
-		}
-		else
-		    others->mask = mask;
-		goto maskSet;
-	    }
-	}
-	check = 0;
-	if (!pWin->optional && !MakeWindowOptional (pWin))
-	    return BadAlloc;
-	others = xalloc(sizeof(OtherClients));
-	if (!others)
-	    return BadAlloc;
-	others->mask = mask;
-	others->resource = FakeClientID(client->index);
-	others->next = pWin->optional->otherClients;
-	pWin->optional->otherClients = others;
-	if (!AddResource(others->resource, RT_OTHERCLIENT, (pointer)pWin))
-	    return BadAlloc;
-    }
-maskSet:
-    if ((mask & PointerMotionHintMask) && !(check & PointerMotionHintMask))
-    {
-        for (dev = inputInfo.devices; dev; dev = dev->next)
-        {
-            if (dev->valuator && dev->valuator->motionHintWindow == pWin)
-                dev->valuator->motionHintWindow = NullWindow;
-        }
-    }
-    RecalculateDeliverableEvents(pWin);
-    return Success;
-}
-
-int
-EventSuppressForWindow(WindowPtr pWin, ClientPtr client,
-                       Mask mask, Bool *checkOptional)
-{
-    int i, free;
-
-    if (mask & ~PropagateMask)
-    {
-	client->errorValue = mask;
-	return BadValue;
-    }
-    if (pWin->dontPropagate)
-	DontPropagateRefCnts[pWin->dontPropagate]--;
-    if (!mask)
-	i = 0;
-    else
-    {
-	for (i = DNPMCOUNT, free = 0; --i > 0; )
-	{
-	    if (!DontPropagateRefCnts[i])
-		free = i;
-	    else if (mask == DontPropagateMasks[i])
-		break;
-	}
-	if (!i && free)
-	{
-	    i = free;
-	    DontPropagateMasks[i] = mask;
-	}
-    }
-    if (i || !mask)
-    {
-	pWin->dontPropagate = i;
-	if (i)
-	    DontPropagateRefCnts[i]++;
-	if (pWin->optional)
-	{
-	    pWin->optional->dontPropagateMask = mask;
-	    *checkOptional = TRUE;
-	}
-    }
-    else
-    {
-	if (!pWin->optional && !MakeWindowOptional (pWin))
-	{
-	    if (pWin->dontPropagate)
-		DontPropagateRefCnts[pWin->dontPropagate]++;
-	    return BadAlloc;
-	}
-	pWin->dontPropagate = 0;
-        pWin->optional->dontPropagateMask = mask;
-    }
-    RecalculateDeliverableEvents(pWin);
-    return Success;
-}
-
-/**
- * Assembles an EnterNotify or LeaveNotify and sends it event to the client.
- * Uses the paired keyboard to get some additional information.
- */
-void
-CoreEnterLeaveEvent(
-    DeviceIntPtr mouse,
-    int type,
-    int mode,
-    int detail,
-    WindowPtr pWin,
-    Window child)
-{
-    xEvent              event;
-    WindowPtr		focus;
-    DeviceIntPtr        keybd;
-    GrabPtr	        grab = mouse->deviceGrab.grab;
-    Mask		mask;
-
-    keybd = GetPairedDevice(mouse);
-
-    if ((pWin == mouse->valuator->motionHintWindow) &&
-	(detail != NotifyInferior))
-	mouse->valuator->motionHintWindow = NullWindow;
-    if (grab)
-    {
-	mask = (pWin == grab->window) ? grab->eventMask : 0;
-	if (grab->ownerEvents)
-	    mask |= EventMaskForClient(pWin, rClient(grab));
-    }
-    else
-    {
-	mask = pWin->eventMask | wOtherEventMasks(pWin);
-    }
-
-    memset(&event, 0, sizeof(xEvent));
-    event.u.u.type = type;
-    event.u.u.detail = detail;
-    event.u.enterLeave.time = currentTime.milliseconds;
-    event.u.enterLeave.rootX = mouse->spriteInfo->sprite->hot.x;
-    event.u.enterLeave.rootY = mouse->spriteInfo->sprite->hot.y;
-    /* Counts on the same initial structure of crossing & button events! */
-    FixUpEventFromWindow(mouse, &event, pWin, None, FALSE);
-    /* Enter/Leave events always set child */
-    event.u.enterLeave.child = child;
-    event.u.enterLeave.flags = event.u.keyButtonPointer.sameScreen ?
-        ELFlagSameScreen : 0;
-    event.u.enterLeave.state = mouse->button ? (mouse->button->state & 0x1f00) : 0;
-    if (keybd)
-        event.u.enterLeave.state |=
-                XkbGrabStateFromRec(&keybd->key->xkbInfo->state);
-    event.u.enterLeave.mode = mode;
-    focus = (keybd) ? keybd->focus->win : None;
-    if ((focus != NoneWin) &&
-            ((pWin == focus) || (focus == PointerRootWin) ||
-             IsParent(focus, pWin)))
-        event.u.enterLeave.flags |= ELFlagFocus;
-
-    if ((mask & GetEventFilter(mouse, &event)))
-    {
-        if (grab)
-            TryClientEvents(rClient(grab), mouse, &event, 1, mask,
-                            GetEventFilter(mouse, &event), grab);
-        else
-            DeliverEventsToWindow(mouse, pWin, &event, 1,
-                                  GetEventFilter(mouse, &event),
-                                  NullGrab);
-    }
-
-    if ((type == EnterNotify) && (mask & KeymapStateMask))
-    {
-        xKeymapEvent ke;
-        ClientPtr client = grab ? rClient(grab) : wClient(pWin);
-        if (XaceHook(XACE_DEVICE_ACCESS, client, keybd, DixReadAccess))
-            bzero((char *)&ke.map[0], 31);
-        else
-            memmove((char *)&ke.map[0], (char *)&keybd->key->down[1], 31);
-
-        ke.type = KeymapNotify;
-        if (grab)
-            TryClientEvents(rClient(grab), keybd, (xEvent *)&ke, 1,
-                            mask, KeymapStateMask, grab);
-        else
-            DeliverEventsToWindow(mouse, pWin, (xEvent *)&ke, 1,
-                                  KeymapStateMask, NullGrab);
-    }
-}
-
-void
-DeviceEnterLeaveEvent(
-    DeviceIntPtr mouse,
-    int sourceid,
-    int type,
-    int mode,
-    int detail,
-    WindowPtr pWin,
-    Window child)
-{
-    GrabPtr             grab = mouse->deviceGrab.grab;
-    xXIEnterEvent       *event;
-    int                 filter;
-    int                 btlen, len, i;
-    DeviceIntPtr        kbd;
-
-    if ((mode == XINotifyPassiveGrab && type == XI_Leave) ||
-        (mode == XINotifyPassiveUngrab && type == XI_Enter))
-        return;
-
-    btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0;
-    btlen = bytes_to_int32(btlen);
-    len = sizeof(xXIEnterEvent) + btlen * 4;
-
-    event = xcalloc(1, len);
-    event->type         = GenericEvent;
-    event->extension    = IReqCode;
-    event->evtype       = type;
-    event->length       = (len - sizeof(xEvent))/4;
-    event->buttons_len  = btlen;
-    event->detail       = detail;
-    event->time         = currentTime.milliseconds;
-    event->deviceid     = mouse->id;
-    event->sourceid     = sourceid;
-    event->mode         = mode;
-    event->root_x       = FP1616(mouse->spriteInfo->sprite->hot.x, 0);
-    event->root_y       = FP1616(mouse->spriteInfo->sprite->hot.y, 0);
-
-    for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
-        if (BitIsOn(mouse->button->down, i))
-            SetBit(&event[1], i);
-
-    kbd = (IsMaster(mouse) || mouse->u.master) ? GetPairedDevice(mouse) : NULL;
-    if (kbd && kbd->key)
-    {
-        event->mods.base_mods = kbd->key->xkbInfo->state.base_mods;
-        event->mods.latched_mods = kbd->key->xkbInfo->state.latched_mods;
-        event->mods.locked_mods = kbd->key->xkbInfo->state.locked_mods;
-
-        event->group.base_group = kbd->key->xkbInfo->state.base_group;
-        event->group.latched_group = kbd->key->xkbInfo->state.latched_group;
-        event->group.locked_group = kbd->key->xkbInfo->state.locked_group;
-    }
-
-    FixUpEventFromWindow(mouse, (xEvent*)event, pWin, None, FALSE);
-
-    filter = GetEventFilter(mouse, (xEvent*)event);
-
-    if (grab)
-    {
-        Mask mask;
-        mask = grab->xi2mask[XIAllDevices][type/8] |
-               grab->xi2mask[XIAllMasterDevices][type/8] |
-               grab->xi2mask[mouse->id][type/8];
-        TryClientEvents(rClient(grab), mouse, (xEvent*)event, 1, mask,
-                        filter, grab);
-    } else {
-        if (!GetWindowXI2Mask(mouse, pWin, (xEvent*)event))
-            goto out;
-        DeliverEventsToWindow(mouse, pWin, (xEvent*)event, 1, filter,
-                              NullGrab);
-    }
-
-out:
-    xfree(event);
-}
-
-void
-CoreFocusEvent(DeviceIntPtr dev, int type, int mode, int detail, WindowPtr pWin)
-{
-    xEvent event;
-
-    memset(&event, 0, sizeof(xEvent));
-    event.u.focus.mode = mode;
-    event.u.u.type = type;
-    event.u.u.detail = detail;
-    event.u.focus.window = pWin->drawable.id;
-
-    DeliverEventsToWindow(dev, pWin, &event, 1,
-                          GetEventFilter(dev, &event), NullGrab);
-    if ((type == FocusIn) &&
-            ((pWin->eventMask | wOtherEventMasks(pWin)) & KeymapStateMask))
-    {
-        xKeymapEvent ke;
-        ClientPtr client = wClient(pWin);
-        if (XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess))
-            bzero((char *)&ke.map[0], 31);
-        else
-            memmove((char *)&ke.map[0], (char *)&dev->key->down[1], 31);
-
-        ke.type = KeymapNotify;
-        DeliverEventsToWindow(dev, pWin, (xEvent *)&ke, 1,
-                KeymapStateMask, NullGrab);
-    }
-}
-
-/**
- * Set the input focus to the given window. Subsequent keyboard events will be
- * delivered to the given window.
- *
- * Usually called from ProcSetInputFocus as result of a client request. If so,
- * the device is the inputInfo.keyboard.
- * If called from ProcXSetInputFocus as result of a client xinput request, the
- * device is set to the device specified by the client.
- *
- * @param client Client that requested input focus change.
- * @param dev Focus device.
- * @param focusID The window to obtain the focus. Can be PointerRoot or None.
- * @param revertTo Specifies where the focus reverts to when window becomes
- * unviewable.
- * @param ctime Specifies the time.
- * @param followOK True if pointer is allowed to follow the keyboard.
- */
-int
-SetInputFocus(
-    ClientPtr client,
-    DeviceIntPtr dev,
-    Window focusID,
-    CARD8 revertTo,
-    Time ctime,
-    Bool followOK)
-{
-    FocusClassPtr focus;
-    WindowPtr focusWin;
-    int mode, rc;
-    TimeStamp time;
-    DeviceIntPtr keybd; /* used for FollowKeyboard or FollowKeyboardWin */
-
-
-    UpdateCurrentTime();
-    if ((revertTo != RevertToParent) &&
-	(revertTo != RevertToPointerRoot) &&
-	(revertTo != RevertToNone) &&
-	((revertTo != RevertToFollowKeyboard) || !followOK))
-    {
-	client->errorValue = revertTo;
-	return BadValue;
-    }
-    time = ClientTimeToServerTime(ctime);
-
-    if (IsKeyboardDevice(dev))
-        keybd = dev;
-    else
-        keybd = GetPairedDevice(dev);
-
-    if ((focusID == None) || (focusID == PointerRoot))
-	focusWin = (WindowPtr)(long)focusID;
-    else if ((focusID == FollowKeyboard) && followOK)
-    {
-	focusWin = keybd->focus->win;
-    }
-    else {
-	rc = dixLookupWindow(&focusWin, focusID, client, DixSetAttrAccess);
-	if (rc != Success)
-	    return rc;
-	/* It is a match error to try to set the input focus to an
-	unviewable window. */
-	if(!focusWin->realized)
-	    return(BadMatch);
-    }
-    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixSetFocusAccess);
-    if (rc != Success)
-	return Success;
-
-    focus = dev->focus;
-    if ((CompareTimeStamps(time, currentTime) == LATER) ||
-	(CompareTimeStamps(time, focus->time) == EARLIER))
-	return Success;
-    mode = (dev->deviceGrab.grab) ? NotifyWhileGrabbed : NotifyNormal;
-    if (focus->win == FollowKeyboardWin)
-    {
-        if (!ActivateFocusInGrab(dev, keybd->focus->win, focusWin))
-            DoFocusEvents(dev, keybd->focus->win, focusWin, mode);
-    } else
-    {
-        if (!ActivateFocusInGrab(dev, focus->win, focusWin))
-            DoFocusEvents(dev, focus->win, focusWin, mode);
-    }
-    focus->time = time;
-    focus->revert = revertTo;
-    if (focusID == FollowKeyboard)
-	focus->win = FollowKeyboardWin;
-    else
-	focus->win = focusWin;
-    if ((focusWin == NoneWin) || (focusWin == PointerRootWin))
-	focus->traceGood = 0;
-    else
-    {
-        int depth = 0;
-	WindowPtr pWin;
-
-        for (pWin = focusWin; pWin; pWin = pWin->parent) depth++;
-        if (depth > focus->traceSize)
-        {
-	    focus->traceSize = depth+1;
-	    focus->trace = xrealloc(focus->trace,
-				    focus->traceSize * sizeof(WindowPtr));
-	}
-	focus->traceGood = depth;
-        for (pWin = focusWin, depth--; pWin; pWin = pWin->parent, depth--)
-	    focus->trace[depth] = pWin;
-    }
-    return Success;
-}
-
-/**
- * Server-side protocol handling for SetInputFocus request.
- *
- * Sets the input focus for the virtual core keyboard.
- */
-int
-ProcSetInputFocus(ClientPtr client)
-{
-    DeviceIntPtr kbd = PickKeyboard(client);
-    REQUEST(xSetInputFocusReq);
-
-    REQUEST_SIZE_MATCH(xSetInputFocusReq);
-
-    return SetInputFocus(client, kbd, stuff->focus,
-			 stuff->revertTo, stuff->time, FALSE);
-}
-
-/**
- * Server-side protocol handling for GetInputFocus request.
- *
- * Sends the current input focus for the client's keyboard back to the
- * client.
- */
-int
-ProcGetInputFocus(ClientPtr client)
-{
-    DeviceIntPtr kbd = PickKeyboard(client);
-    xGetInputFocusReply rep;
-    FocusClassPtr focus = kbd->focus;
-    int rc;
-    /* REQUEST(xReq); */
-    REQUEST_SIZE_MATCH(xReq);
-
-    rc = XaceHook(XACE_DEVICE_ACCESS, client, kbd, DixGetFocusAccess);
-    if (rc != Success)
-	return rc;
-
-    memset(&rep, 0, sizeof(xGetInputFocusReply));
-    rep.type = X_Reply;
-    rep.length = 0;
-    rep.sequenceNumber = client->sequence;
-    if (focus->win == NoneWin)
-	rep.focus = None;
-    else if (focus->win == PointerRootWin)
-	rep.focus = PointerRoot;
-    else rep.focus = focus->win->drawable.id;
-    rep.revertTo = focus->revert;
-    WriteReplyToClient(client, sizeof(xGetInputFocusReply), &rep);
-    return Success;
-}
-
-/**
- * Server-side protocol handling for GrabPointer request.
- *
- * Sets an active grab on the client's ClientPointer and returns success
- * status to client.
- */
-int
-ProcGrabPointer(ClientPtr client)
-{
-    xGrabPointerReply rep;
-    DeviceIntPtr device = PickPointer(client);
-    GrabPtr grab;
-    GrabMask mask;
-    WindowPtr confineTo;
-    CursorPtr oldCursor;
-    REQUEST(xGrabPointerReq);
-    TimeStamp time;
-    int rc;
-
-    REQUEST_SIZE_MATCH(xGrabPointerReq);
-    UpdateCurrentTime();
-
-    if (stuff->eventMask & ~PointerGrabMask)
-    {
-	client->errorValue = stuff->eventMask;
-        return BadValue;
-    }
-
-    if (stuff->confineTo == None)
-	confineTo = NullWindow;
-    else
-    {
-	rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
-			     DixSetAttrAccess);
-	if (rc != Success)
-	    return rc;
-    }
-
-    memset(&rep, 0, sizeof(xGrabPointerReply));
-    oldCursor = NullCursor;
-    grab = device->deviceGrab.grab;
-
-    if (grab)
-    {
-        if (grab->confineTo && !confineTo)
-            ConfineCursorToWindow(device, RootWindow(device), FALSE, FALSE);
-        oldCursor = grab->cursor;
-    }
-
-    mask.core = stuff->eventMask;
-
-    rc = GrabDevice(client, device, stuff->pointerMode, stuff->keyboardMode,
-                    stuff->grabWindow, stuff->ownerEvents, stuff->time,
-                    &mask, GRABTYPE_CORE, stuff->cursor,
-                    stuff->confineTo, &rep.status);
-    if (rc != Success)
-        return rc;
-
-    if (oldCursor && rep.status == GrabSuccess)
-        FreeCursor (oldCursor, (Cursor)0);
-
-    time = ClientTimeToServerTime(stuff->time);
-    rep.type = X_Reply;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 0;
-    WriteReplyToClient(client, sizeof(xGrabPointerReply), &rep);
-    return Success;
-}
-
-/**
- * Server-side protocol handling for ChangeActivePointerGrab request.
- *
- * Changes properties of the grab hold by the client. If the client does not
- * hold an active grab on the device, nothing happens.
- */
-int
-ProcChangeActivePointerGrab(ClientPtr client)
-{
-    DeviceIntPtr device;
-    GrabPtr      grab;
-    CursorPtr newCursor, oldCursor;
-    REQUEST(xChangeActivePointerGrabReq);
-    TimeStamp time;
-
-    REQUEST_SIZE_MATCH(xChangeActivePointerGrabReq);
-    if (stuff->eventMask & ~PointerGrabMask)
-    {
-	client->errorValue = stuff->eventMask;
-        return BadValue;
-    }
-    if (stuff->cursor == None)
-	newCursor = NullCursor;
-    else
-    {
-	int rc = dixLookupResourceByType((pointer *)&newCursor, stuff->cursor,
-					 RT_CURSOR, client, DixUseAccess);
-	if (rc != Success)
-	{
-	    client->errorValue = stuff->cursor;
-	    return (rc == BadValue) ? BadCursor : rc;
-	}
-    }
-
-    device = PickPointer(client);
-    grab = device->deviceGrab.grab;
-
-    if (!grab)
-	return Success;
-    if (!SameClient(grab, client))
-	return Success;
-    time = ClientTimeToServerTime(stuff->time);
-    if ((CompareTimeStamps(time, currentTime) == LATER) ||
-	     (CompareTimeStamps(time, device->deviceGrab.grabTime) == EARLIER))
-	return Success;
-    oldCursor = grab->cursor;
-    grab->cursor = newCursor;
-    if (newCursor)
-	newCursor->refcnt++;
-    PostNewCursor(device);
-    if (oldCursor)
-	FreeCursor(oldCursor, (Cursor)0);
-    grab->eventMask = stuff->eventMask;
-    return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabPointer request.
- *
- * Deletes a pointer grab on a device the client has grabbed.
- */
-int
-ProcUngrabPointer(ClientPtr client)
-{
-    DeviceIntPtr device = PickPointer(client);
-    GrabPtr grab;
-    TimeStamp time;
-    REQUEST(xResourceReq);
-
-    REQUEST_SIZE_MATCH(xResourceReq);
-    UpdateCurrentTime();
-    grab = device->deviceGrab.grab;
-
-    time = ClientTimeToServerTime(stuff->id);
-    if ((CompareTimeStamps(time, currentTime) != LATER) &&
-	    (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
-	    (grab) && SameClient(grab, client))
-	(*device->deviceGrab.DeactivateGrab)(device);
-    return Success;
-}
-
-/**
- * Sets a grab on the given device.
- *
- * Called from ProcGrabKeyboard to work on the client's keyboard.
- * Called from ProcXGrabDevice to work on the device specified by the client.
- *
- * The parameters this_mode and other_mode represent the keyboard_mode and
- * pointer_mode parameters of XGrabKeyboard().
- * See man page for details on all the parameters
- *
- * @param client Client that owns the grab.
- * @param dev The device to grab.
- * @param this_mode GrabModeSync or GrabModeAsync
- * @param other_mode GrabModeSync or GrabModeAsync
- * @param status Return code to be returned to the caller.
- *
- * @returns Success or BadValue.
- */
-int
-GrabDevice(ClientPtr client, DeviceIntPtr dev,
-           unsigned pointer_mode, unsigned keyboard_mode, Window grabWindow,
-           unsigned ownerEvents, Time ctime, GrabMask *mask,
-           int grabtype, Cursor curs, Window confineToWin, CARD8 *status)
-{
-    WindowPtr pWin, confineTo;
-    GrabPtr grab;
-    TimeStamp time;
-    Mask access_mode = DixGrabAccess;
-    int rc;
-    GrabInfoPtr grabInfo = &dev->deviceGrab;
-    CursorPtr cursor;
-
-    UpdateCurrentTime();
-    if ((keyboard_mode != GrabModeSync) && (keyboard_mode != GrabModeAsync))
-    {
-	client->errorValue = keyboard_mode;
-        return BadValue;
-    }
-    if ((pointer_mode != GrabModeSync) && (pointer_mode != GrabModeAsync))
-    {
-	client->errorValue = pointer_mode;
-        return BadValue;
-    }
-    if ((ownerEvents != xFalse) && (ownerEvents != xTrue))
-    {
-	client->errorValue = ownerEvents;
-        return BadValue;
-    }
-
-    rc = dixLookupWindow(&pWin, grabWindow, client, DixSetAttrAccess);
-    if (rc != Success)
-	return rc;
-
-    if (confineToWin == None)
-	confineTo = NullWindow;
-    else
-    {
-	rc = dixLookupWindow(&confineTo, confineToWin, client,
-			     DixSetAttrAccess);
-	if (rc != Success)
-	    return rc;
-    }
-
-    if (curs == None)
-	cursor = NullCursor;
-    else
-    {
-	rc = dixLookupResourceByType((pointer *)&cursor, curs, RT_CURSOR,
-			       client, DixUseAccess);
-	if (rc != Success)
-	{
-	    client->errorValue = curs;
-	    return (rc == BadValue) ? BadCursor : rc;
-	}
-	access_mode |= DixForceAccess;
-    }
-
-    if (keyboard_mode == GrabModeSync || pointer_mode == GrabModeSync)
-	access_mode |= DixFreezeAccess;
-    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
-    if (rc != Success)
-	return rc;
-
-    time = ClientTimeToServerTime(ctime);
-    grab = grabInfo->grab;
-    if (grab && grab->grabtype != grabtype)
-        *status = AlreadyGrabbed;
-    if (grab && !SameClient(grab, client))
-	*status = AlreadyGrabbed;
-    else if ((!pWin->realized) ||
-             (confineTo &&
-                !(confineTo->realized
-                    && BorderSizeNotEmpty(dev, confineTo))))
-	*status = GrabNotViewable;
-    else if ((CompareTimeStamps(time, currentTime) == LATER) ||
-	     (CompareTimeStamps(time, grabInfo->grabTime) == EARLIER))
-	*status = GrabInvalidTime;
-    else if (grabInfo->sync.frozen &&
-	     grabInfo->sync.other && !SameClient(grabInfo->sync.other, client))
-	*status = GrabFrozen;
-    else
-    {
-	GrabRec tempGrab;
-
-        /* Otherwise segfaults happen on grabbed MPX devices */
-        memset(&tempGrab, 0, sizeof(GrabRec));
-
-        tempGrab.next = NULL;
-	tempGrab.window = pWin;
-	tempGrab.resource = client->clientAsMask;
-	tempGrab.ownerEvents = ownerEvents;
-	tempGrab.keyboardMode = keyboard_mode;
-	tempGrab.pointerMode = pointer_mode;
-	if (grabtype == GRABTYPE_CORE)
-	    tempGrab.eventMask = mask->core;
-	else if (grabtype == GRABTYPE_XI)
-	    tempGrab.eventMask = mask->xi;
-	else
-	    memcpy(tempGrab.xi2mask, mask->xi2mask, sizeof(tempGrab.xi2mask));
-	tempGrab.device = dev;
-	tempGrab.cursor = cursor;
-	tempGrab.confineTo = confineTo;
-	tempGrab.grabtype = grabtype;
-	(*grabInfo->ActivateGrab)(dev, &tempGrab, time, FALSE);
-	*status = GrabSuccess;
-    }
-    return Success;
-}
-
-/**
- * Server-side protocol handling for GrabKeyboard request.
- *
- * Grabs the client's keyboard and returns success status to client.
- */
-int
-ProcGrabKeyboard(ClientPtr client)
-{
-    xGrabKeyboardReply rep;
-    REQUEST(xGrabKeyboardReq);
-    int result;
-    DeviceIntPtr keyboard = PickKeyboard(client);
-    GrabMask mask;
-
-    REQUEST_SIZE_MATCH(xGrabKeyboardReq);
-
-    memset(&rep, 0, sizeof(xGrabKeyboardReply));
-    mask.core = KeyPressMask | KeyReleaseMask;
-
-    result = GrabDevice(client, keyboard, stuff->pointerMode,
-            stuff->keyboardMode, stuff->grabWindow, stuff->ownerEvents,
-            stuff->time, &mask, GRABTYPE_CORE, None, None,
-            &rep.status);
-
-    if (result != Success)
-	return result;
-    rep.type = X_Reply;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 0;
-    WriteReplyToClient(client, sizeof(xGrabKeyboardReply), &rep);
-    return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabKeyboard request.
- *
- * Deletes a possible grab on the client's keyboard.
- */
-int
-ProcUngrabKeyboard(ClientPtr client)
-{
-    DeviceIntPtr device = PickKeyboard(client);
-    GrabPtr grab;
-    TimeStamp time;
-    REQUEST(xResourceReq);
-
-    REQUEST_SIZE_MATCH(xResourceReq);
-    UpdateCurrentTime();
-
-    grab = device->deviceGrab.grab;
-
-    time = ClientTimeToServerTime(stuff->id);
-    if ((CompareTimeStamps(time, currentTime) != LATER) &&
-	(CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
-	(grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_CORE)
-	(*device->deviceGrab.DeactivateGrab)(device);
-    return Success;
-}
-
-/**
- * Server-side protocol handling for QueryPointer request.
- *
- * Returns the current state and position of the client's ClientPointer to the
- * client.
- */
-int
-ProcQueryPointer(ClientPtr client)
-{
-    xQueryPointerReply rep;
-    WindowPtr pWin, t;
-    DeviceIntPtr mouse = PickPointer(client);
-    DeviceIntPtr keyboard;
-    SpritePtr pSprite;
-    int rc;
-    REQUEST(xResourceReq);
-    REQUEST_SIZE_MATCH(xResourceReq);
-
-    rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
-    if (rc != Success)
-	return rc;
-    rc = XaceHook(XACE_DEVICE_ACCESS, client, mouse, DixReadAccess);
-    if (rc != Success && rc != BadAccess)
-	return rc;
-
-    keyboard = GetPairedDevice(mouse);
-
-    pSprite = mouse->spriteInfo->sprite;
-    if (mouse->valuator->motionHintWindow)
-	MaybeStopHint(mouse, client);
-    memset(&rep, 0, sizeof(xQueryPointerReply));
-    rep.type = X_Reply;
-    rep.sequenceNumber = client->sequence;
-    rep.mask = mouse->button ? (mouse->button->state) : 0;
-    rep.mask |= XkbStateFieldFromRec(&keyboard->key->xkbInfo->state);
-    rep.length = 0;
-    rep.root = (RootWindow(mouse))->drawable.id;
-    rep.rootX = pSprite->hot.x;
-    rep.rootY = pSprite->hot.y;
-    rep.child = None;
-    if (pSprite->hot.pScreen == pWin->drawable.pScreen)
-    {
-	rep.sameScreen = xTrue;
-	rep.winX = pSprite->hot.x - pWin->drawable.x;
-	rep.winY = pSprite->hot.y - pWin->drawable.y;
-	for (t = pSprite->win; t; t = t->parent)
-	    if (t->parent == pWin)
-	    {
-		rep.child = t->drawable.id;
-		break;
-	    }
-    }
-    else
-    {
-	rep.sameScreen = xFalse;
-	rep.winX = 0;
-	rep.winY = 0;
-    }
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension) {
-	rep.rootX += panoramiXdataPtr[0].x;
-	rep.rootY += panoramiXdataPtr[0].y;
-	if(stuff->id == rep.root) {
-	    rep.winX += panoramiXdataPtr[0].x;
-	    rep.winY += panoramiXdataPtr[0].y;
-	}
-    }
-#endif
-
-    if (rc == BadAccess) {
-	rep.mask = 0;
-	rep.child = None;
-	rep.rootX = 0;
-	rep.rootY = 0;
-	rep.winX = 0;
-	rep.winY = 0;
-    }
-
-    WriteReplyToClient(client, sizeof(xQueryPointerReply), &rep);
-
-    return(Success);
-}
-
-/**
- * Initializes the device list and the DIX sprite to sane values. Allocates
- * trace memory used for quick window traversal.
- */
-void
-InitEvents(void)
-{
-    int i;
-
-    inputInfo.numDevices = 0;
-    inputInfo.devices = (DeviceIntPtr)NULL;
-    inputInfo.off_devices = (DeviceIntPtr)NULL;
-    inputInfo.keyboard = (DeviceIntPtr)NULL;
-    inputInfo.pointer = (DeviceIntPtr)NULL;
-    /* The mask for pointer motion events may have changed in the last server
-     * generation. See comment above definition of filters. */
-    filters[0][PointerMotionMask] = MotionNotify;
-    for (i = 1; i < MAXDEVICES; i++)
-    {
-        memcpy(&filters[i], filters[0], sizeof(filters[0]));
-    }
-
-    syncEvents.replayDev = (DeviceIntPtr)NULL;
-    syncEvents.replayWin = NullWindow;
-    while (syncEvents.pending)
-    {
-	QdEventPtr next = syncEvents.pending->next;
-	xfree(syncEvents.pending);
-	syncEvents.pending = next;
-    }
-    syncEvents.pendtail = &syncEvents.pending;
-    syncEvents.playingEvents = FALSE;
-    syncEvents.time.months = 0;
-    syncEvents.time.milliseconds = 0;	/* hardly matters */
-    currentTime.months = 0;
-    currentTime.milliseconds = GetTimeInMillis();
-    lastDeviceEventTime = currentTime;
-    for (i = 0; i < DNPMCOUNT; i++)
-    {
-	DontPropagateMasks[i] = 0;
-	DontPropagateRefCnts[i] = 0;
-    }
-
-    InputEventListLen = GetMaximumEventsNum();
-    InputEventList = InitEventList(InputEventListLen);
-    if (!InputEventList)
-        FatalError("[dix] Failed to allocate input event list.\n");
-}
-
-void
-CloseDownEvents(void)
-{
-    FreeEventList(InputEventList, InputEventListLen);
-    InputEventListLen = 0;
-    InputEventList = NULL;
-}
-
-/**
- * Server-side protocol handling for SendEvent request.
- *
- * Locates the window to send the event to and forwards the event.
- */
-int
-ProcSendEvent(ClientPtr client)
-{
-    WindowPtr pWin;
-    WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */
-    DeviceIntPtr dev = PickPointer(client);
-    DeviceIntPtr keybd = GetPairedDevice(dev);
-    SpritePtr pSprite = dev->spriteInfo->sprite;
-    REQUEST(xSendEventReq);
-
-    REQUEST_SIZE_MATCH(xSendEventReq);
-
-    /* The client's event type must be a core event type or one defined by an
-	extension. */
-
-    if ( ! ((stuff->event.u.u.type > X_Reply &&
-	     stuff->event.u.u.type < LASTEvent) ||
-	    (stuff->event.u.u.type >= EXTENSION_EVENT_BASE &&
-	     stuff->event.u.u.type < (unsigned)lastEvent)))
-    {
-	client->errorValue = stuff->event.u.u.type;
-	return BadValue;
-    }
-    if (stuff->event.u.u.type == ClientMessage &&
-	stuff->event.u.u.detail != 8 &&
-	stuff->event.u.u.detail != 16 &&
-	stuff->event.u.u.detail != 32)
-    {
-	client->errorValue = stuff->event.u.u.detail;
-	return BadValue;
-    }
-    if (stuff->eventMask & ~AllEventMasks)
-    {
-	client->errorValue = stuff->eventMask;
-	return BadValue;
-    }
-
-    if (stuff->destination == PointerWindow)
-	pWin = pSprite->win;
-    else if (stuff->destination == InputFocus)
-    {
-	WindowPtr inputFocus = (keybd) ? keybd->focus->win : NoneWin;
-
-	if (inputFocus == NoneWin)
-	    return Success;
-
-	/* If the input focus is PointerRootWin, send the event to where
-	the pointer is if possible, then perhaps propogate up to root. */
-	if (inputFocus == PointerRootWin)
-	    inputFocus = pSprite->spriteTrace[0]; /* Root window! */
-
-	if (IsParent(inputFocus, pSprite->win))
-	{
-	    effectiveFocus = inputFocus;
-	    pWin = pSprite->win;
-	}
-	else
-	    effectiveFocus = pWin = inputFocus;
-    }
-    else
-	dixLookupWindow(&pWin, stuff->destination, client, DixSendAccess);
-
-    if (!pWin)
-	return BadWindow;
-    if ((stuff->propagate != xFalse) && (stuff->propagate != xTrue))
-    {
-	client->errorValue = stuff->propagate;
-	return BadValue;
-    }
-    stuff->event.u.u.type |= 0x80;
-    if (stuff->propagate)
-    {
-	for (;pWin; pWin = pWin->parent)
-	{
-	    if (XaceHook(XACE_SEND_ACCESS, client, NULL, pWin,
-			 &stuff->event, 1))
-		return Success;
-            if (DeliverEventsToWindow(dev, pWin,
-                        &stuff->event, 1, stuff->eventMask, NullGrab))
-		return Success;
-	    if (pWin == effectiveFocus)
-		return Success;
-	    stuff->eventMask &= ~wDontPropagateMask(pWin);
-	    if (!stuff->eventMask)
-		break;
-	}
-    }
-    else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, &stuff->event, 1))
-        DeliverEventsToWindow(dev, pWin, &stuff->event,
-                                    1, stuff->eventMask, NullGrab);
-    return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabKey request.
- *
- * Deletes a passive grab for the given key. Works on the
- * client's keyboard.
- */
-int
-ProcUngrabKey(ClientPtr client)
-{
-    REQUEST(xUngrabKeyReq);
-    WindowPtr pWin;
-    GrabRec tempGrab;
-    DeviceIntPtr keybd = PickKeyboard(client);
-    int rc;
-
-    REQUEST_SIZE_MATCH(xUngrabKeyReq);
-    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixGetAttrAccess);
-    if (rc != Success)
-	return rc;
-
-    if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
-	 (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
-	&& (stuff->key != AnyKey))
-    {
-	client->errorValue = stuff->key;
-        return BadValue;
-    }
-    if ((stuff->modifiers != AnyModifier) &&
-	(stuff->modifiers & ~AllModifiersMask))
-    {
-	client->errorValue = stuff->modifiers;
-	return BadValue;
-    }
-    tempGrab.resource = client->clientAsMask;
-    tempGrab.device = keybd;
-    tempGrab.window = pWin;
-    tempGrab.modifiersDetail.exact = stuff->modifiers;
-    tempGrab.modifiersDetail.pMask = NULL;
-    tempGrab.modifierDevice = GetPairedDevice(keybd);
-    tempGrab.type = KeyPress;
-    tempGrab.grabtype = GRABTYPE_CORE;
-    tempGrab.detail.exact = stuff->key;
-    tempGrab.detail.pMask = NULL;
-    tempGrab.next = NULL;
-
-    if (!DeletePassiveGrabFromList(&tempGrab))
-	return(BadAlloc);
-    return(Success);
-}
-
-/**
- * Server-side protocol handling for GrabKey request.
- *
- * Creates a grab for the client's keyboard and adds it to the list of passive
- * grabs.
- */
-int
-ProcGrabKey(ClientPtr client)
-{
-    WindowPtr pWin;
-    REQUEST(xGrabKeyReq);
-    GrabPtr grab;
-    DeviceIntPtr keybd = PickKeyboard(client);
-    int rc;
-    GrabParameters param;
-    GrabMask mask;
-
-    REQUEST_SIZE_MATCH(xGrabKeyReq);
-
-    memset(&param, 0, sizeof(param));
-    param.grabtype = GRABTYPE_CORE;
-    param.ownerEvents = stuff->ownerEvents;
-    param.this_device_mode = stuff->keyboardMode;
-    param.other_devices_mode = stuff->pointerMode;
-    param.modifiers = stuff->modifiers;
-
-    rc = CheckGrabValues(client, &param);
-    if (rc != Success)
-        return rc;
-
-    if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
-	 (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
-	&& (stuff->key != AnyKey))
-    {
-	client->errorValue = stuff->key;
-        return BadValue;
-    }
-    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
-    if (rc != Success)
-	return rc;
-
-
-    mask.core = (KeyPressMask | KeyReleaseMask);
-
-    grab = CreateGrab(client->index, keybd, keybd, pWin, GRABTYPE_CORE, &mask,
-                      &param, KeyPress, stuff->key, NullWindow, NullCursor);
-    if (!grab)
-	return BadAlloc;
-    return AddPassiveGrabToList(client, grab);
-}
-
-
-/**
- * Server-side protocol handling for GrabButton request.
- *
- * Creates a grab for the client's ClientPointer and adds it as a passive grab
- * to the list.
- */
-int
-ProcGrabButton(ClientPtr client)
-{
-    WindowPtr pWin, confineTo;
-    REQUEST(xGrabButtonReq);
-    CursorPtr cursor;
-    GrabPtr grab;
-    DeviceIntPtr ptr, modifierDevice;
-    Mask access_mode = DixGrabAccess;
-    GrabMask mask;
-    GrabParameters param;
-    int rc;
-
-    REQUEST_SIZE_MATCH(xGrabButtonReq);
-    if ((stuff->pointerMode != GrabModeSync) &&
-	(stuff->pointerMode != GrabModeAsync))
-    {
-	client->errorValue = stuff->pointerMode;
-        return BadValue;
-    }
-    if ((stuff->keyboardMode != GrabModeSync) &&
-	(stuff->keyboardMode != GrabModeAsync))
-    {
-	client->errorValue = stuff->keyboardMode;
-        return BadValue;
-    }
-    if ((stuff->modifiers != AnyModifier) &&
-	(stuff->modifiers & ~AllModifiersMask))
-    {
-	client->errorValue = stuff->modifiers;
-	return BadValue;
-    }
-    if ((stuff->ownerEvents != xFalse) && (stuff->ownerEvents != xTrue))
-    {
-	client->errorValue = stuff->ownerEvents;
-	return BadValue;
-    }
-    if (stuff->eventMask & ~PointerGrabMask)
-    {
-	client->errorValue = stuff->eventMask;
-        return BadValue;
-    }
-    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
-    if (rc != Success)
-	return rc;
-    if (stuff->confineTo == None)
-       confineTo = NullWindow;
-    else {
-	rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
-			     DixSetAttrAccess);
-	if (rc != Success)
-	    return rc;
-    }
-    if (stuff->cursor == None)
-	cursor = NullCursor;
-    else
-    {
-	rc = dixLookupResourceByType((pointer *)&cursor, stuff->cursor, RT_CURSOR,
-			       client, DixUseAccess);
-	if (rc != Success)
-	{
-	    client->errorValue = stuff->cursor;
-	    return (rc == BadValue) ? BadCursor : rc;
-	}
-	access_mode |= DixForceAccess;
-    }
-
-    ptr = PickPointer(client);
-    modifierDevice = GetPairedDevice(ptr);
-    if (stuff->pointerMode == GrabModeSync ||
-	stuff->keyboardMode == GrabModeSync)
-	access_mode |= DixFreezeAccess;
-    rc = XaceHook(XACE_DEVICE_ACCESS, client, ptr, access_mode);
-    if (rc != Success)
-	return rc;
-
-    memset(&param, 0, sizeof(param));
-    param.grabtype = GRABTYPE_CORE;
-    param.ownerEvents = stuff->ownerEvents;
-    param.this_device_mode = stuff->keyboardMode;
-    param.other_devices_mode = stuff->pointerMode;
-    param.modifiers = stuff->modifiers;
-
-    mask.core = stuff->eventMask;
-
-    grab = CreateGrab(client->index, ptr, modifierDevice, pWin,
-                      GRABTYPE_CORE, &mask, &param, ButtonPress,
-                      stuff->button, confineTo, cursor);
-    if (!grab)
-	return BadAlloc;
-    return AddPassiveGrabToList(client, grab);
-}
-
-/**
- * Server-side protocol handling for UngrabButton request.
- *
- * Deletes a passive grab on the client's ClientPointer from the list.
- */
-int
-ProcUngrabButton(ClientPtr client)
-{
-    REQUEST(xUngrabButtonReq);
-    WindowPtr pWin;
-    GrabRec tempGrab;
-    int rc;
-    DeviceIntPtr ptr;
-
-    REQUEST_SIZE_MATCH(xUngrabButtonReq);
-    if ((stuff->modifiers != AnyModifier) &&
-	(stuff->modifiers & ~AllModifiersMask))
-    {
-	client->errorValue = stuff->modifiers;
-	return BadValue;
-    }
-    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixReadAccess);
-    if (rc != Success)
-	return rc;
-
-    ptr = PickPointer(client);
-
-    tempGrab.resource = client->clientAsMask;
-    tempGrab.device = ptr;
-    tempGrab.window = pWin;
-    tempGrab.modifiersDetail.exact = stuff->modifiers;
-    tempGrab.modifiersDetail.pMask = NULL;
-    tempGrab.modifierDevice = GetPairedDevice(ptr);
-    tempGrab.type = ButtonPress;
-    tempGrab.detail.exact = stuff->button;
-    tempGrab.grabtype = GRABTYPE_CORE;
-    tempGrab.detail.pMask = NULL;
-    tempGrab.next = NULL;
-
-    if (!DeletePassiveGrabFromList(&tempGrab))
-	return(BadAlloc);
-    return(Success);
-}
-
-/**
- * Deactivate any grab that may be on the window, remove the focus.
- * Delete any XInput extension events from the window too. Does not change the
- * window mask. Use just before the window is deleted.
- *
- * If freeResources is set, passive grabs on the window are deleted.
- *
- * @param pWin The window to delete events from.
- * @param freeResources True if resources associated with the window should be
- * deleted.
- */
-void
-DeleteWindowFromAnyEvents(WindowPtr pWin, Bool freeResources)
-{
-    WindowPtr		parent;
-    DeviceIntPtr	mouse = inputInfo.pointer;
-    DeviceIntPtr	keybd = inputInfo.keyboard;
-    FocusClassPtr	focus;
-    OtherClientsPtr	oc;
-    GrabPtr		passive;
-    GrabPtr             grab;
-
-
-    /* Deactivate any grabs performed on this window, before making any
-	input focus changes. */
-    grab = mouse->deviceGrab.grab;
-    if (grab &&
-	((grab->window == pWin) || (grab->confineTo == pWin)))
-	(*mouse->deviceGrab.DeactivateGrab)(mouse);
-
-
-    /* Deactivating a keyboard grab should cause focus events. */
-    grab = keybd->deviceGrab.grab;
-    if (grab && (grab->window == pWin))
-	(*keybd->deviceGrab.DeactivateGrab)(keybd);
-
-    /* And now the real devices */
-    for (mouse = inputInfo.devices; mouse; mouse = mouse->next)
-    {
-        grab = mouse->deviceGrab.grab;
-        if (grab && ((grab->window == pWin) || (grab->confineTo == pWin)))
-            (*mouse->deviceGrab.DeactivateGrab)(mouse);
-    }
-
-
-    for (keybd = inputInfo.devices; keybd; keybd = keybd->next)
-    {
-        if (IsKeyboardDevice(keybd))
-        {
-            focus = keybd->focus;
-
-            /* If the focus window is a root window (ie. has no parent) then don't
-               delete the focus from it. */
-
-            if ((pWin == focus->win) && (pWin->parent != NullWindow))
-            {
-                int focusEventMode = NotifyNormal;
-
-                /* If a grab is in progress, then alter the mode of focus events. */
-
-                if (keybd->deviceGrab.grab)
-                    focusEventMode = NotifyWhileGrabbed;
-
-                switch (focus->revert)
-                {
-                    case RevertToNone:
-                        DoFocusEvents(keybd, pWin, NoneWin, focusEventMode);
-                        focus->win = NoneWin;
-                        focus->traceGood = 0;
-                        break;
-                    case RevertToParent:
-                        parent = pWin;
-                        do
-                        {
-                            parent = parent->parent;
-                            focus->traceGood--;
-                        } while (!parent->realized
-                                /* This would be a good protocol change -- windows being reparented
-                                   during SaveSet processing would cause the focus to revert to the
-                                   nearest enclosing window which will survive the death of the exiting
-                                   client, instead of ending up reverting to a dying window and thence
-                                   to None
-                                 */
-#ifdef NOTDEF
-				 || wClient(parent)->clientGone
-#endif
-                                );
-                        if (!ActivateFocusInGrab(keybd, pWin, parent))
-                            DoFocusEvents(keybd, pWin, parent, focusEventMode);
-                        focus->win = parent;
-                        focus->revert = RevertToNone;
-                        break;
-                    case RevertToPointerRoot:
-                        if (!ActivateFocusInGrab(keybd, pWin, PointerRootWin))
-                            DoFocusEvents(keybd, pWin, PointerRootWin, focusEventMode);
-                        focus->win = PointerRootWin;
-                        focus->traceGood = 0;
-                        break;
-                }
-            }
-        }
-
-        if (IsPointerDevice(keybd))
-        {
-            if (keybd->valuator->motionHintWindow == pWin)
-                keybd->valuator->motionHintWindow = NullWindow;
-        }
-    }
-
-    if (freeResources)
-    {
-	if (pWin->dontPropagate)
-	    DontPropagateRefCnts[pWin->dontPropagate]--;
-	while ( (oc = wOtherClients(pWin)) )
-	    FreeResource(oc->resource, RT_NONE);
-	while ( (passive = wPassiveGrabs(pWin)) )
-	    FreeResource(passive->resource, RT_NONE);
-     }
-
-    DeleteWindowFromAnyExtEvents(pWin, freeResources);
-}
-
-/**
- * Call this whenever some window at or below pWin has changed geometry. If
- * there is a grab on the window, the cursor will be re-confined into the
- * window.
- */
-void
-CheckCursorConfinement(WindowPtr pWin)
-{
-    GrabPtr grab;
-    WindowPtr confineTo;
-    DeviceIntPtr pDev;
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum) return;
-#endif
-
-    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
-    {
-        if (DevHasCursor(pDev))
-        {
-            grab = pDev->deviceGrab.grab;
-            if (grab && (confineTo = grab->confineTo))
-            {
-                if (!BorderSizeNotEmpty(pDev, confineTo))
-                    (*pDev->deviceGrab.DeactivateGrab)(pDev);
-                else if ((pWin == confineTo) || IsParent(pWin, confineTo))
-                    ConfineCursorToWindow(pDev, confineTo, TRUE, TRUE);
-            }
-        }
-    }
-}
-
-Mask
-EventMaskForClient(WindowPtr pWin, ClientPtr client)
-{
-    OtherClientsPtr	other;
-
-    if (wClient (pWin) == client)
-	return pWin->eventMask;
-    for (other = wOtherClients(pWin); other; other = other->next)
-    {
-	if (SameClient(other, client))
-	    return other->mask;
-    }
-    return 0;
-}
-
-/**
- * Server-side protocol handling for RecolorCursor request.
- */
-int
-ProcRecolorCursor(ClientPtr client)
-{
-    CursorPtr pCursor;
-    int		rc, nscr;
-    ScreenPtr	pscr;
-    Bool	displayed;
-    SpritePtr   pSprite = PickPointer(client)->spriteInfo->sprite;
-    REQUEST(xRecolorCursorReq);
-
-    REQUEST_SIZE_MATCH(xRecolorCursorReq);
-    rc = dixLookupResourceByType((pointer *)&pCursor, stuff->cursor, RT_CURSOR,
-			   client, DixWriteAccess);
-    if (rc != Success)
-    {
-	client->errorValue = stuff->cursor;
-	return (rc == BadValue) ? BadCursor : rc;
-    }
-
-    pCursor->foreRed = stuff->foreRed;
-    pCursor->foreGreen = stuff->foreGreen;
-    pCursor->foreBlue = stuff->foreBlue;
-
-    pCursor->backRed = stuff->backRed;
-    pCursor->backGreen = stuff->backGreen;
-    pCursor->backBlue = stuff->backBlue;
-
-    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
-    {
-	pscr = screenInfo.screens[nscr];
-#ifdef PANORAMIX
-	if(!noPanoramiXExtension)
-	    displayed = (pscr == pSprite->screen);
-	else
-#endif
-	    displayed = (pscr == pSprite->hotPhys.pScreen);
-	( *pscr->RecolorCursor)(PickPointer(client), pscr, pCursor,
-				(pCursor == pSprite->current) && displayed);
-    }
-    return (Success);
-}
-
-/**
- * Write the given events to a client, swapping the byte order if necessary.
- * To swap the byte ordering, a callback is called that has to be set up for
- * the given event type.
- *
- * In the case of DeviceMotionNotify trailed by DeviceValuators, the events
- * can be more than one. Usually it's just one event.
- *
- * Do not modify the event structure passed in. See comment below.
- *
- * @param pClient Client to send events to.
- * @param count Number of events.
- * @param events The event list.
- */
-void
-WriteEventsToClient(ClientPtr pClient, int count, xEvent *events)
-{
-#ifdef PANORAMIX
-    xEvent    eventCopy;
-#endif
-    xEvent    *eventTo, *eventFrom;
-    int       i,
-              eventlength = sizeof(xEvent);
-
-    /* Let XKB rewrite the state, as it depends on client preferences. */
-    XkbFilterEvents(pClient, count, events);
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension &&
-       (panoramiXdataPtr[0].x || panoramiXdataPtr[0].y))
-    {
-	switch(events->u.u.type) {
-	case MotionNotify:
-	case ButtonPress:
-	case ButtonRelease:
-	case KeyPress:
-	case KeyRelease:
-	case EnterNotify:
-	case LeaveNotify:
-	/*
-	   When multiple clients want the same event DeliverEventsToWindow
-	   passes the same event structure multiple times so we can't
-	   modify the one passed to us
-        */
-	    count = 1;  /* should always be 1 */
-	    memcpy(&eventCopy, events, sizeof(xEvent));
-	    eventCopy.u.keyButtonPointer.rootX += panoramiXdataPtr[0].x;
-	    eventCopy.u.keyButtonPointer.rootY += panoramiXdataPtr[0].y;
-	    if(eventCopy.u.keyButtonPointer.event ==
-	       eventCopy.u.keyButtonPointer.root)
-	    {
-		eventCopy.u.keyButtonPointer.eventX += panoramiXdataPtr[0].x;
-		eventCopy.u.keyButtonPointer.eventY += panoramiXdataPtr[0].y;
-	    }
-	    events = &eventCopy;
-	    break;
-	default: break;
-	}
-    }
-#endif
-
-    if (EventCallback)
-    {
-	EventInfoRec eventinfo;
-	eventinfo.client = pClient;
-	eventinfo.events = events;
-	eventinfo.count = count;
-	CallCallbacks(&EventCallback, (pointer)&eventinfo);
-    }
-#ifdef XSERVER_DTRACE
-    if (XSERVER_SEND_EVENT_ENABLED()) {
-	for (i = 0; i < count; i++)
-	{
-	    XSERVER_SEND_EVENT(pClient->index, events[i].u.u.type, &events[i]);
-	}
-    }
-#endif
-    /* Just a safety check to make sure we only have one GenericEvent, it just
-     * makes things easier for me right now. (whot) */
-    for (i = 1; i < count; i++)
-    {
-        if (events[i].u.u.type == GenericEvent)
-        {
-            ErrorF("[dix] TryClientEvents: Only one GenericEvent at a time.\n");
-            return;
-        }
-    }
-
-    if (events->u.u.type == GenericEvent)
-    {
-        eventlength += ((xGenericEvent*)events)->length * 4;
-    }
-
-    if(pClient->swapped)
-    {
-        if (eventlength > swapEventLen)
-        {
-            swapEventLen = eventlength;
-            swapEvent = Xrealloc(swapEvent, swapEventLen);
-            if (!swapEvent)
-            {
-                FatalError("WriteEventsToClient: Out of memory.\n");
-                return;
-            }
-        }
-
-	for(i = 0; i < count; i++)
-	{
-	    eventFrom = &events[i];
-            eventTo = swapEvent;
-
-	    /* Remember to strip off the leading bit of type in case
-	       this event was sent with "SendEvent." */
-	    (*EventSwapVector[eventFrom->u.u.type & 0177])
-		(eventFrom, eventTo);
-
-	    WriteToClient(pClient, eventlength, (char *)eventTo);
-	}
-    }
-    else
-    {
-        /* only one GenericEvent, remember? that means either count is 1 and
-         * eventlength is arbitrary or eventlength is 32 and count doesn't
-         * matter. And we're all set. Woohoo. */
-	WriteToClient(pClient, count * eventlength, (char *) events);
-    }
-}
-
-/*
- * Set the client pointer for the given client.
- *
- * A client can have exactly one ClientPointer. Each time a
- * request/reply/event is processed and the choice of devices is ambiguous
- * (e.g. QueryPointer request), the server will pick the ClientPointer (see
- * PickPointer()).
- * If a keyboard is needed, the first keyboard paired with the CP is used.
- */
-int
-SetClientPointer(ClientPtr client, DeviceIntPtr device)
-{
-    int rc = XaceHook(XACE_DEVICE_ACCESS, client, device, DixUseAccess);
-    if (rc != Success)
-	return rc;
-
-    if (!IsMaster(device))
-    {
-        ErrorF("[dix] Need master device for ClientPointer. This is a bug.\n");
-        return BadDevice;
-    } else if (!device->spriteInfo->spriteOwner)
-    {
-        ErrorF("[dix] Device %d does not have a sprite. "
-                "Cannot be ClientPointer\n", device->id);
-        return BadDevice;
-    }
-    client->clientPtr = device;
-    return Success;
-}
-
-/* PickPointer will pick an appropriate pointer for the given client.
- *
- * An "appropriate device" is (in order of priority):
- *  1) A device the given client has a core grab on.
- *  2) A device set as ClientPointer for the given client.
- *  3) The first master device.
- */
-DeviceIntPtr
-PickPointer(ClientPtr client)
-{
-    DeviceIntPtr it = inputInfo.devices;
-
-    /* First, check if the client currently has a grab on a device. Even
-     * keyboards count. */
-    for(it = inputInfo.devices; it; it = it->next)
-    {
-        GrabPtr grab = it->deviceGrab.grab;
-        if (grab && grab->grabtype == GRABTYPE_CORE && SameClient(grab, client))
-        {
-            it = GetMaster(it, MASTER_POINTER);
-            return it; /* Always return a core grabbed device */
-        }
-    }
-
-    if (!client->clientPtr)
-    {
-        DeviceIntPtr it = inputInfo.devices;
-        while (it)
-        {
-            if (IsMaster(it) && it->spriteInfo->spriteOwner)
-            {
-                client->clientPtr = it;
-                break;
-            }
-            it = it->next;
-        }
-    }
-    return client->clientPtr;
-}
-
-/* PickKeyboard will pick an appropriate keyboard for the given client by
- * searching the list of devices for the keyboard device that is paired with
- * the client's pointer.
- */
-DeviceIntPtr
-PickKeyboard(ClientPtr client)
-{
-    DeviceIntPtr ptr = PickPointer(client);
-    DeviceIntPtr kbd = GetMaster(ptr, MASTER_KEYBOARD);
-
-    if (!kbd)
-    {
-        ErrorF("[dix] ClientPointer not paired with a keyboard. This "
-                "is a bug.\n");
-    }
-
-    return kbd;
-}
-
-/* A client that has one or more core grabs does not get core events from
- * devices it does not have a grab on. Legacy applications behave bad
- * otherwise because they are not used to it and the events interfere.
- * Only applies for core events.
- *
- * Return true if a core event from the device would interfere and should not
- * be delivered.
- */
-Bool
-IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent* event)
-{
-    DeviceIntPtr it = inputInfo.devices;
-
-    switch(event->u.u.type)
-    {
-        case KeyPress:
-        case KeyRelease:
-        case ButtonPress:
-        case ButtonRelease:
-        case MotionNotify:
-        case EnterNotify:
-        case LeaveNotify:
-            break;
-        default:
-            return FALSE;
-    }
-
-    if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
-        return FALSE;
-
-    while(it)
-    {
-        if (it != dev)
-        {
-            if (it->deviceGrab.grab && SameClient(it->deviceGrab.grab, client)
-                        && !it->deviceGrab.fromPassiveGrab)
-            {
-                if ((IsPointerDevice(it) && IsPointerDevice(dev)) ||
-                        (IsKeyboardDevice(it) && IsKeyboardDevice(dev)))
-                    return TRUE;
-            }
-        }
-        it = it->next;
-    }
-
-    return FALSE;
-}
-
+/************************************************************

+

+Copyright 1987, 1998  The Open Group

+

+Permission to use, copy, modify, distribute, and sell this software and its

+documentation for any purpose is hereby granted without fee, provided that

+the above copyright notice appear in all copies and that both that

+copyright notice and this permission notice appear in supporting

+documentation.

+

+The above copyright notice and this permission notice shall be included in

+all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of The Open Group shall not be

+used in advertising or otherwise to promote the sale, use or other dealings

+in this Software without prior written authorization from The Open Group.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its

+documentation for any purpose and without fee is hereby granted,

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+********************************************************/

+

+/* The panoramix components contained the following notice */

+/*****************************************************************

+

+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.

+

+Permission is hereby granted, free of charge, to any person obtaining a copy

+of this software and associated documentation files (the "Software"), to deal

+in the Software without restriction, including without limitation the rights

+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

+copies of the Software.

+

+The above copyright notice and this permission notice shall be included in

+all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,

+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,

+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR

+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of Digital Equipment Corporation

+shall not be used in advertising or otherwise to promote the sale, use or other

+dealings in this Software without prior written authorization from Digital

+Equipment Corporation.

+

+******************************************************************/

+

+/*

+ * Copyright © 2003-2005 Sun Microsystems, Inc.  All rights reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

+ * DEALINGS IN THE SOFTWARE.

+ */

+

+/** @file events.c

+ * This file handles event delivery and a big part of the server-side protocol

+ * handling (the parts for input devices).

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include "misc.h"

+#include "resource.h"

+#include <X11/Xproto.h>

+#include "windowstr.h"

+#include "inputstr.h"

+#include "scrnintstr.h"

+#include "cursorstr.h"

+

+#include "dixstruct.h"

+#ifdef PANORAMIX

+#include "panoramiX.h"

+#include "panoramiXsrv.h"

+#endif

+#include "globals.h"

+

+#include <X11/extensions/XKBproto.h>

+#include "xkbsrv.h"

+#include "xace.h"

+

+#ifdef XSERVER_DTRACE

+#include <sys/types.h>

+typedef const char *string;

+#include "Xserver-dtrace.h"

+#endif

+

+#include <X11/extensions/XIproto.h>

+#include <X11/extensions/XI2proto.h>

+#include <X11/extensions/XI.h>

+#include <X11/extensions/XI2.h>

+#include "exglobals.h"

+#include "exevents.h"

+#include "exglobals.h"

+#include "extnsionst.h"

+

+#include "dixevents.h"

+#include "dixgrabs.h"

+#include "dispatch.h"

+

+#include <X11/extensions/ge.h>

+#include "geext.h"

+#include "geint.h"

+

+#include "eventstr.h"

+#include "enterleave.h"

+#include "eventconvert.h"

+

+/* Extension events type numbering starts at EXTENSION_EVENT_BASE.  */

+#define NoSuchEvent 0x80000000	/* so doesn't match NoEventMask */

+#define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask )

+#define AllButtonsMask ( \

+	Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )

+#define MotionMask ( \

+	PointerMotionMask | Button1MotionMask | \

+	Button2MotionMask | Button3MotionMask | Button4MotionMask | \

+	Button5MotionMask | ButtonMotionMask )

+#define PropagateMask ( \

+	KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | \

+	MotionMask )

+#define PointerGrabMask ( \

+	ButtonPressMask | ButtonReleaseMask | \

+	EnterWindowMask | LeaveWindowMask | \

+	PointerMotionHintMask | KeymapStateMask | \

+	MotionMask )

+#define AllModifiersMask ( \

+	ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \

+	Mod3Mask | Mod4Mask | Mod5Mask )

+#define LastEventMask OwnerGrabButtonMask

+#define AllEventMasks (LastEventMask|(LastEventMask-1))

+

+

+#define CORE_EVENT(event) \

+    (!((event)->u.u.type & EXTENSION_EVENT_BASE) && \

+      (event)->u.u.type != GenericEvent)

+#define XI2_EVENT(event) \

+    (((event)->u.u.type == GenericEvent) && \

+    ((xGenericEvent*)(event))->extension == IReqCode)

+

+/**

+ * Used to indicate a implicit passive grab created by a ButtonPress event.

+ * See DeliverEventsToWindow().

+ */

+#define ImplicitGrabMask (1 << 7)

+

+#define WID(w) ((w) ? ((w)->drawable.id) : 0)

+

+#define XE_KBPTR (xE->u.keyButtonPointer)

+

+

+#define rClient(obj) (clients[CLIENT_ID((obj)->resource)])

+

+CallbackListPtr EventCallback;

+CallbackListPtr DeviceEventCallback;

+

+#define DNPMCOUNT 8

+

+Mask DontPropagateMasks[DNPMCOUNT];

+static int DontPropagateRefCnts[DNPMCOUNT];

+

+static void CheckVirtualMotion( DeviceIntPtr pDev, QdEventPtr qe, WindowPtr pWin);

+static void CheckPhysLimits(DeviceIntPtr pDev,

+                            CursorPtr cursor,

+                            Bool generateEvents,

+                            Bool confineToScreen,

+                            ScreenPtr pScreen);

+static Bool CheckPassiveGrabsOnWindow(WindowPtr pWin,

+                                      DeviceIntPtr device,

+                                      DeviceEvent *event,

+                                      BOOL checkCore);

+

+/** Key repeat hack. Do not use but in TryClientEvents */

+extern BOOL EventIsKeyRepeat(xEvent *event);

+

+/**

+ * Main input device struct.

+ *     inputInfo.pointer

+ *     is the core pointer. Referred to as "virtual core pointer", "VCP",

+ *     "core pointer" or inputInfo.pointer. The VCP is the first master

+ *     pointer device and cannot be deleted.

+ *

+ *     inputInfo.keyboard

+ *     is the core keyboard ("virtual core keyboard", "VCK", "core keyboard").

+ *     See inputInfo.pointer.

+ *

+ *     inputInfo.devices

+ *     linked list containing all devices including VCP and VCK.

+ *

+ *     inputInfo.off_devices

+ *     Devices that have not been initialized and are thus turned off.

+ *

+ *     inputInfo.numDevices

+ *     Total number of devices.

+ *

+ *     inputInfo.all_devices

+ *     Virtual device used for XIAllDevices passive grabs. This device is

+ *     not part of the inputInfo.devices list and mostly unset except for

+ *     the deviceid. It exists because passivegrabs need a valid device

+ *     reference.

+ *

+ *     inputInfo.all_master_devices

+ *     Virtual device used for XIAllMasterDevices passive grabs. This device

+ *     is not part of the inputInfo.devices list and mostly unset except for

+ *     the deviceid. It exists because passivegrabs need a valid device

+ *     reference.

+ */

+InputInfo inputInfo;

+

+EventSyncInfoRec syncEvents;

+

+/**

+ * The root window the given device is currently on.

+ */

+#define RootWindow(dev) dev->spriteInfo->sprite->spriteTrace[0]

+

+static xEvent* swapEvent = NULL;

+static int swapEventLen = 0;

+

+void

+NotImplemented(xEvent *from, xEvent *to)

+{

+    FatalError("Not implemented");

+}

+

+/**

+ * Convert the given event type from an XI event to a core event.

+ * @param[in] The XI 1.x event type.

+ * @return The matching core event type or 0 if there is none.

+ */

+int

+XItoCoreType(int xitype)

+{

+    int coretype = 0;

+    if (xitype == DeviceMotionNotify)

+        coretype = MotionNotify;

+    else if (xitype == DeviceButtonPress)

+        coretype = ButtonPress;

+    else if (xitype == DeviceButtonRelease)

+        coretype = ButtonRelease;

+    else if (xitype == DeviceKeyPress)

+        coretype = KeyPress;

+    else if (xitype == DeviceKeyRelease)

+        coretype = KeyRelease;

+

+    return coretype;

+}

+

+/**

+ * @return true if the device owns a cursor, false if device shares a cursor

+ * sprite with another device.

+ */

+Bool

+DevHasCursor(DeviceIntPtr pDev)

+{

+    return pDev->spriteInfo->spriteOwner;

+}

+

+/*

+ * @return true if a device is a pointer, check is the same as used by XI to

+ * fill the 'use' field.

+ */

+Bool

+IsPointerDevice(DeviceIntPtr dev)

+{

+    return (dev->type == MASTER_POINTER) ||

+            (dev->valuator && dev->button) ||

+            (dev->valuator && !dev->key);

+}

+

+/*

+ * @return true if a device is a keyboard, check is the same as used by XI to

+ * fill the 'use' field.

+ *

+ * Some pointer devices have keys as well (e.g. multimedia keys). Try to not

+ * count them as keyboard devices.

+ */

+Bool

+IsKeyboardDevice(DeviceIntPtr dev)

+{

+    return (dev->type == MASTER_KEYBOARD) ||

+            ((dev->key && dev->kbdfeed) && !IsPointerDevice(dev));

+}

+

+Bool

+IsMaster(DeviceIntPtr dev)

+{

+    return (dev->type == MASTER_POINTER || dev->type == MASTER_KEYBOARD);

+}

+

+static WindowPtr XYToWindow(

+    DeviceIntPtr pDev,

+    int x,

+    int y

+);

+

+/**

+ * Max event opcode.

+ */

+extern int lastEvent;

+

+extern int DeviceMotionNotify;

+

+#define CantBeFiltered NoEventMask

+/**

+ * Event masks for each event type.

+ *

+ * One set of filters for each device, but only the first layer

+ * is initialized. The rest is memcpy'd in InitEvents.

+ *

+ * Filters are used whether a given event may be delivered to a client,

+ * usually in the form of if (window-event-mask & filter); then deliver event.

+ *

+ * One notable filter is for PointerMotion/DevicePointerMotion events. Each

+ * time a button is pressed, the filter is modified to also contain the

+ * matching ButtonXMotion mask.

+ */

+static Mask filters[MAXDEVICES][128] = {

+{

+	NoSuchEvent,		       /* 0 */

+	NoSuchEvent,		       /* 1 */

+	KeyPressMask,		       /* KeyPress */

+	KeyReleaseMask,		       /* KeyRelease */

+	ButtonPressMask,	       /* ButtonPress */

+	ButtonReleaseMask,	       /* ButtonRelease */

+	PointerMotionMask,	       /* MotionNotify (initial state) */

+	EnterWindowMask,	       /* EnterNotify */

+	LeaveWindowMask,	       /* LeaveNotify */

+	FocusChangeMask,	       /* FocusIn */

+	FocusChangeMask,	       /* FocusOut */

+	KeymapStateMask,	       /* KeymapNotify */

+	ExposureMask,		       /* Expose */

+	CantBeFiltered,		       /* GraphicsExpose */

+	CantBeFiltered,		       /* NoExpose */

+	VisibilityChangeMask,	       /* VisibilityNotify */

+	SubstructureNotifyMask,	       /* CreateNotify */

+	StructureAndSubMask,	       /* DestroyNotify */

+	StructureAndSubMask,	       /* UnmapNotify */

+	StructureAndSubMask,	       /* MapNotify */

+	SubstructureRedirectMask,      /* MapRequest */

+	StructureAndSubMask,	       /* ReparentNotify */

+	StructureAndSubMask,	       /* ConfigureNotify */

+	SubstructureRedirectMask,      /* ConfigureRequest */

+	StructureAndSubMask,	       /* GravityNotify */

+	ResizeRedirectMask,	       /* ResizeRequest */

+	StructureAndSubMask,	       /* CirculateNotify */

+	SubstructureRedirectMask,      /* CirculateRequest */

+	PropertyChangeMask,	       /* PropertyNotify */

+	CantBeFiltered,		       /* SelectionClear */

+	CantBeFiltered,		       /* SelectionRequest */

+	CantBeFiltered,		       /* SelectionNotify */

+	ColormapChangeMask,	       /* ColormapNotify */

+	CantBeFiltered,		       /* ClientMessage */

+	CantBeFiltered		       /* MappingNotify */

+}};

+

+/**

+ * For the given event, return the matching event filter. This filter may then

+ * be AND'ed with the selected event mask.

+ *

+ * For XI2 events, the returned filter is simply the byte containing the event

+ * mask we're interested in. E.g. for a mask of (1 << 13), this would be

+ * byte[1].

+ *

+ * @param[in] dev The device the event belongs to, may be NULL.

+ * @param[in] event The event to get the filter for. Only the type of the

+ *                  event matters, or the extension + evtype for GenericEvents.

+ * @return The filter mask for the given event.

+ *

+ * @see GetEventMask

+ */

+Mask

+GetEventFilter(DeviceIntPtr dev, xEvent *event)

+{

+    if (event->u.u.type != GenericEvent)

+        return filters[dev ? dev->id : 0][event->u.u.type];

+    else if (XI2_EVENT(event))

+        return (1 << (((xXIDeviceEvent*)event)->evtype % 8));

+    ErrorF("[dix] Unknown device type %d. No filter\n", event->u.u.type);

+    return 0;

+}

+

+/**

+ * Return the windows complete XI2 mask for the given XI2 event type.

+ */

+Mask

+GetWindowXI2Mask(DeviceIntPtr dev, WindowPtr win, xEvent* ev)

+{

+    OtherInputMasks *inputMasks = wOtherInputMasks(win);

+    int filter;

+    int evtype;

+

+    if (!inputMasks || !XI2_EVENT(ev))

+        return 0;

+

+    evtype = ((xGenericEvent*)ev)->evtype;

+    filter = GetEventFilter(dev, ev);

+

+    return ((inputMasks->xi2mask[dev->id][evtype/8] & filter) ||

+            inputMasks->xi2mask[XIAllDevices][evtype/8] ||

+            (inputMasks->xi2mask[XIAllMasterDevices][evtype/8] && IsMaster(dev)));

+}

+

+static Mask

+GetEventMask(DeviceIntPtr dev, xEvent *event, InputClients* other)

+{

+    /* XI2 filters are only ever 8 bit, so let's return a 8 bit mask */

+    if (XI2_EVENT(event))

+    {

+        int byte = ((xGenericEvent*)event)->evtype / 8;

+        return (other->xi2mask[dev->id][byte] |

+                other->xi2mask[XIAllDevices][byte] |

+                (IsMaster(dev)? other->xi2mask[XIAllMasterDevices][byte] : 0));

+    } else if (CORE_EVENT(event))

+        return other->mask[XIAllDevices];

+    else

+        return other->mask[dev->id];

+}

+

+

+static CARD8 criticalEvents[32] =

+{

+    0x7c, 0x30, 0x40			/* key, button, expose, and configure events */

+};

+

+static void

+SyntheticMotion(DeviceIntPtr dev, int x, int y) {

+    int screenno = 0;

+

+#ifdef PANORAMIX

+    if (!noPanoramiXExtension)

+        screenno = dev->spriteInfo->sprite->screen->myNum;

+#endif

+    PostSyntheticMotion(dev, x, y, screenno,

+            (syncEvents.playingEvents) ?  syncEvents.time.milliseconds : currentTime.milliseconds);

+

+}

+

+#ifdef PANORAMIX

+static void PostNewCursor(DeviceIntPtr pDev);

+

+static Bool

+XineramaSetCursorPosition(

+    DeviceIntPtr pDev,

+    int x,

+    int y,

+    Bool generateEvent

+){

+    ScreenPtr pScreen;

+    BoxRec box;

+    int i;

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    /* x,y are in Screen 0 coordinates.  We need to decide what Screen

+       to send the message too and what the coordinates relative to

+       that screen are. */

+

+    pScreen = pSprite->screen;

+    x += panoramiXdataPtr[0].x;

+    y += panoramiXdataPtr[0].y;

+

+    if(!POINT_IN_REGION(pScreen, &XineramaScreenRegions[pScreen->myNum],

+								x, y, &box))

+    {

+	FOR_NSCREENS(i)

+	{

+	    if(i == pScreen->myNum)

+		continue;

+	    if(POINT_IN_REGION(pScreen, &XineramaScreenRegions[i], x, y, &box))

+	    {

+		pScreen = screenInfo.screens[i];

+		break;

+	    }

+	}

+    }

+

+    pSprite->screen = pScreen;

+    pSprite->hotPhys.x = x - panoramiXdataPtr[0].x;

+    pSprite->hotPhys.y = y - panoramiXdataPtr[0].y;

+    x -= panoramiXdataPtr[pScreen->myNum].x;

+    y -= panoramiXdataPtr[pScreen->myNum].y;

+

+    return (*pScreen->SetCursorPosition)(pDev, pScreen, x, y, generateEvent);

+}

+

+

+static void

+XineramaConstrainCursor(DeviceIntPtr pDev)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+    ScreenPtr pScreen;

+    BoxRec newBox;

+

+    pScreen = pSprite->screen;

+    newBox = pSprite->physLimits;

+

+    /* Translate the constraining box to the screen

+       the sprite is actually on */

+    newBox.x1 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;

+    newBox.x2 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;

+    newBox.y1 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;

+    newBox.y2 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;

+

+    (* pScreen->ConstrainCursor)(pDev, pScreen, &newBox);

+}

+

+

+static Bool

+XineramaSetWindowPntrs(DeviceIntPtr pDev, WindowPtr pWin)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    if(pWin == WindowTable[0]) {

+	    memcpy(pSprite->windows, WindowTable,

+				PanoramiXNumScreens*sizeof(WindowPtr));

+    } else {

+	PanoramiXRes *win;

+	int rc, i;

+

+	rc = dixLookupResourceByType((pointer *)&win, pWin->drawable.id,

+				     XRT_WINDOW, serverClient, DixReadAccess);

+	if (rc != Success)

+	    return FALSE;

+

+	for(i = 0; i < PanoramiXNumScreens; i++) {

+	    rc = dixLookupWindow(pSprite->windows + i, win->info[i].id,

+				 serverClient, DixReadAccess);

+	    if (rc != Success)  /* window is being unmapped */

+		return FALSE;

+	}

+    }

+    return TRUE;

+}

+

+static void

+XineramaConfineCursorToWindow(DeviceIntPtr pDev,

+                              WindowPtr pWin,

+                              Bool generateEvents)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    int x, y, off_x, off_y, i;

+

+    if(!XineramaSetWindowPntrs(pDev, pWin))

+        return;

+

+    i = PanoramiXNumScreens - 1;

+

+    REGION_COPY(pSprite->screen, &pSprite->Reg1,

+            &pSprite->windows[i]->borderSize);

+    off_x = panoramiXdataPtr[i].x;

+    off_y = panoramiXdataPtr[i].y;

+

+    while(i--) {

+        x = off_x - panoramiXdataPtr[i].x;

+        y = off_y - panoramiXdataPtr[i].y;

+

+        if(x || y)

+            REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, x, y);

+

+        REGION_UNION(pSprite->screen, &pSprite->Reg1, &pSprite->Reg1,

+                &pSprite->windows[i]->borderSize);

+

+        off_x = panoramiXdataPtr[i].x;

+        off_y = panoramiXdataPtr[i].y;

+    }

+

+    pSprite->hotLimits = *REGION_EXTENTS(pSprite->screen, &pSprite->Reg1);

+

+    if(REGION_NUM_RECTS(&pSprite->Reg1) > 1)

+        pSprite->hotShape = &pSprite->Reg1;

+    else

+        pSprite->hotShape = NullRegion;

+

+    pSprite->confined = FALSE;

+    pSprite->confineWin = (pWin == WindowTable[0]) ? NullWindow : pWin;

+

+    CheckPhysLimits(pDev, pSprite->current, generateEvents, FALSE, NULL);

+}

+

+#endif  /* PANORAMIX */

+

+/**

+ * Modifies the filter for the given protocol event type to the given masks.

+ *

+ * There's only two callers: UpdateDeviceState() and XI's SetMaskForExtEvent().

+ * The latter initialises masks for the matching XI events, it's a once-off

+ * setting.

+ * UDS however changes the mask for MotionNotify and DeviceMotionNotify each

+ * time a button is pressed to include the matching ButtonXMotion mask in the

+ * filter.

+ *

+ * @param[in] deviceid The device to modify the filter for.

+ * @param[in] mask The new filter mask.

+ * @param[in] event Protocol event type.

+ */

+void

+SetMaskForEvent(int deviceid, Mask mask, int event)

+{

+    if (deviceid < 0 || deviceid >= MAXDEVICES)

+        FatalError("SetMaskForEvent: bogus device id");

+    filters[deviceid][event] = mask;

+}

+

+void

+SetCriticalEvent(int event)

+{

+    if (event >= 128)

+	FatalError("SetCriticalEvent: bogus event number");

+    criticalEvents[event >> 3] |= 1 << (event & 7);

+}

+

+void

+ConfineToShape(DeviceIntPtr pDev, RegionPtr shape, int *px, int *py)

+{

+    BoxRec box;

+    int x = *px, y = *py;

+    int incx = 1, incy = 1;

+    SpritePtr pSprite;

+

+    pSprite = pDev->spriteInfo->sprite;

+    if (POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box))

+	return;

+    box = *REGION_EXTENTS(pSprite->hot.pScreen, shape);

+    /* this is rather crude */

+    do {

+	x += incx;

+	if (x >= box.x2)

+	{

+	    incx = -1;

+	    x = *px - 1;

+	}

+	else if (x < box.x1)

+	{

+	    incx = 1;

+	    x = *px;

+	    y += incy;

+	    if (y >= box.y2)

+	    {

+		incy = -1;

+		y = *py - 1;

+	    }

+	    else if (y < box.y1)

+		return; /* should never get here! */

+	}

+    } while (!POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box));

+    *px = x;

+    *py = y;

+}

+

+static void

+CheckPhysLimits(

+    DeviceIntPtr pDev,

+    CursorPtr cursor,

+    Bool generateEvents,

+    Bool confineToScreen, /* unused if PanoramiX on */

+    ScreenPtr pScreen)    /* unused if PanoramiX on */

+{

+    HotSpot new;

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    if (!cursor)

+	return;

+    new = pSprite->hotPhys;

+#ifdef PANORAMIX

+    if (!noPanoramiXExtension)

+        /* I don't care what the DDX has to say about it */

+        pSprite->physLimits = pSprite->hotLimits;

+    else

+#endif

+    {

+        if (pScreen)

+            new.pScreen = pScreen;

+        else

+            pScreen = new.pScreen;

+        (*pScreen->CursorLimits) (pDev, pScreen, cursor, &pSprite->hotLimits,

+                &pSprite->physLimits);

+        pSprite->confined = confineToScreen;

+        (* pScreen->ConstrainCursor)(pDev, pScreen, &pSprite->physLimits);

+    }

+

+    /* constrain the pointer to those limits */

+    if (new.x < pSprite->physLimits.x1)

+	new.x = pSprite->physLimits.x1;

+    else

+	if (new.x >= pSprite->physLimits.x2)

+	    new.x = pSprite->physLimits.x2 - 1;

+    if (new.y < pSprite->physLimits.y1)

+	new.y = pSprite->physLimits.y1;

+    else

+	if (new.y >= pSprite->physLimits.y2)

+	    new.y = pSprite->physLimits.y2 - 1;

+    if (pSprite->hotShape)

+	ConfineToShape(pDev, pSprite->hotShape, &new.x, &new.y);

+    if ((

+#ifdef PANORAMIX

+            noPanoramiXExtension &&

+#endif

+            (pScreen != pSprite->hotPhys.pScreen)) ||

+	(new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y))

+    {

+#ifdef PANORAMIX

+        if (!noPanoramiXExtension)

+            XineramaSetCursorPosition (pDev, new.x, new.y, generateEvents);

+        else

+#endif

+        {

+            if (pScreen != pSprite->hotPhys.pScreen)

+                pSprite->hotPhys = new;

+            (*pScreen->SetCursorPosition)

+                (pDev, pScreen, new.x, new.y, generateEvents);

+        }

+        if (!generateEvents)

+            SyntheticMotion(pDev, new.x, new.y);

+    }

+

+#ifdef PANORAMIX

+    /* Tell DDX what the limits are */

+    if (!noPanoramiXExtension)

+        XineramaConstrainCursor(pDev);

+#endif

+}

+

+static void

+CheckVirtualMotion(

+    DeviceIntPtr pDev,

+    QdEventPtr qe,

+    WindowPtr pWin)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+    RegionPtr reg = NULL;

+    DeviceEvent *ev = NULL;

+

+    if (qe)

+    {

+        ev = &qe->event->device_event;

+        switch(ev->type)

+        {

+            case ET_Motion:

+            case ET_ButtonPress:

+            case ET_ButtonRelease:

+            case ET_KeyPress:

+            case ET_KeyRelease:

+            case ET_ProximityIn:

+            case ET_ProximityOut:

+                pSprite->hot.pScreen = qe->pScreen;

+                pSprite->hot.x = ev->root_x;

+                pSprite->hot.y = ev->root_y;

+                pWin = pDev->deviceGrab.grab ? pDev->deviceGrab.grab->confineTo : NullWindow;

+                break;

+            default:

+                break;

+        }

+    }

+    if (pWin)

+    {

+	BoxRec lims;

+

+#ifdef PANORAMIX

+        if (!noPanoramiXExtension) {

+            int x, y, off_x, off_y, i;

+

+            if(!XineramaSetWindowPntrs(pDev, pWin))

+                return;

+

+            i = PanoramiXNumScreens - 1;

+

+            REGION_COPY(pSprite->screen, &pSprite->Reg2,

+                    &pSprite->windows[i]->borderSize);

+            off_x = panoramiXdataPtr[i].x;

+            off_y = panoramiXdataPtr[i].y;

+

+            while(i--) {

+                x = off_x - panoramiXdataPtr[i].x;

+                y = off_y - panoramiXdataPtr[i].y;

+

+                if(x || y)

+                    REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, x, y);

+

+                REGION_UNION(pSprite->screen, &pSprite->Reg2, &pSprite->Reg2,

+                        &pSprite->windows[i]->borderSize);

+

+                off_x = panoramiXdataPtr[i].x;

+                off_y = panoramiXdataPtr[i].y;

+            }

+        } else

+#endif

+        {

+            if (pSprite->hot.pScreen != pWin->drawable.pScreen)

+            {

+                pSprite->hot.pScreen = pWin->drawable.pScreen;

+                pSprite->hot.x = pSprite->hot.y = 0;

+            }

+        }

+

+	lims = *REGION_EXTENTS(pWin->drawable.pScreen, &pWin->borderSize);

+	if (pSprite->hot.x < lims.x1)

+	    pSprite->hot.x = lims.x1;

+	else if (pSprite->hot.x >= lims.x2)

+	    pSprite->hot.x = lims.x2 - 1;

+	if (pSprite->hot.y < lims.y1)

+	    pSprite->hot.y = lims.y1;

+	else if (pSprite->hot.y >= lims.y2)

+	    pSprite->hot.y = lims.y2 - 1;

+

+#ifdef PANORAMIX

+        if (!noPanoramiXExtension)

+        {

+            if (REGION_NUM_RECTS(&pSprite->Reg2) > 1)

+                reg = &pSprite->Reg2;

+

+        } else

+#endif

+        {

+            if (wBoundingShape(pWin))

+                reg = &pWin->borderSize;

+        }

+

+        if (reg)

+            ConfineToShape(pDev, reg, &pSprite->hot.x, &pSprite->hot.y);

+

+	if (qe && ev)

+	{

+	    qe->pScreen = pSprite->hot.pScreen;

+	    ev->root_x = pSprite->hot.x;

+	    ev->root_y = pSprite->hot.y;

+	}

+    }

+#ifdef PANORAMIX

+    if (noPanoramiXExtension) /* No typo. Only set the root win if disabled */

+#endif

+        RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];

+}

+

+static void

+ConfineCursorToWindow(DeviceIntPtr pDev, WindowPtr pWin, Bool generateEvents, Bool confineToScreen)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    if (syncEvents.playingEvents)

+    {

+	CheckVirtualMotion(pDev, (QdEventPtr)NULL, pWin);

+	SyntheticMotion(pDev, pSprite->hot.x, pSprite->hot.y);

+    }

+    else

+    {

+#ifdef PANORAMIX

+        if(!noPanoramiXExtension) {

+            XineramaConfineCursorToWindow(pDev, pWin, generateEvents);

+            return;

+        }

+#endif

+	pSprite->hotLimits = *REGION_EXTENTS( pScreen, &pWin->borderSize);

+	pSprite->hotShape = wBoundingShape(pWin) ? &pWin->borderSize

+					       : NullRegion;

+        CheckPhysLimits(pDev, pSprite->current, generateEvents,

+                        confineToScreen, pScreen);

+    }

+}

+

+Bool

+PointerConfinedToScreen(DeviceIntPtr pDev)

+{

+    return pDev->spriteInfo->sprite->confined;

+}

+

+/**

+ * Update the sprite cursor to the given cursor.

+ *

+ * ChangeToCursor() will display the new cursor and free the old cursor (if

+ * applicable). If the provided cursor is already the updated cursor, nothing

+ * happens.

+ */

+static void

+ChangeToCursor(DeviceIntPtr pDev, CursorPtr cursor)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+    ScreenPtr pScreen;

+

+    if (cursor != pSprite->current)

+    {

+	if ((pSprite->current->bits->xhot != cursor->bits->xhot) ||

+		(pSprite->current->bits->yhot != cursor->bits->yhot))

+	    CheckPhysLimits(pDev, cursor, FALSE, pSprite->confined,

+			    (ScreenPtr)NULL);

+#ifdef PANORAMIX

+        /* XXX: is this really necessary?? (whot) */

+        if (!noPanoramiXExtension)

+            pScreen = pSprite->screen;

+        else

+#endif

+            pScreen = pSprite->hotPhys.pScreen;

+

+        (*pScreen->DisplayCursor)(pDev, pScreen, cursor);

+	FreeCursor(pSprite->current, (Cursor)0);

+	pSprite->current = cursor;

+	pSprite->current->refcnt++;

+    }

+}

+

+/**

+ * @returns true if b is a descendent of a

+ */

+Bool

+IsParent(WindowPtr a, WindowPtr b)

+{

+    for (b = b->parent; b; b = b->parent)

+	if (b == a) return TRUE;

+    return FALSE;

+}

+

+/**

+ * Update the cursor displayed on the screen.

+ *

+ * Called whenever a cursor may have changed shape or position.

+ */

+static void

+PostNewCursor(DeviceIntPtr pDev)

+{

+    WindowPtr win;

+    GrabPtr grab = pDev->deviceGrab.grab;

+    SpritePtr   pSprite = pDev->spriteInfo->sprite;

+    CursorPtr   pCursor;

+

+    if (syncEvents.playingEvents)

+	return;

+    if (grab)

+    {

+	if (grab->cursor)

+	{

+	    ChangeToCursor(pDev, grab->cursor);

+	    return;

+	}

+	if (IsParent(grab->window, pSprite->win))

+	    win = pSprite->win;

+	else

+	    win = grab->window;

+    }

+    else

+	win = pSprite->win;

+    for (; win; win = win->parent)

+    {

+	if (win->optional)

+        {

+            pCursor = WindowGetDeviceCursor(win, pDev);

+            if (!pCursor && win->optional->cursor != NullCursor)

+                pCursor = win->optional->cursor;

+            if (pCursor)

+            {

+                ChangeToCursor(pDev, pCursor);

+                return;

+            }

+	}

+    }

+}

+

+

+/**

+ * @param dev device which you want to know its current root window

+ * @return root window where dev's sprite is located

+ */

+WindowPtr

+GetCurrentRootWindow(DeviceIntPtr dev)

+{

+    return RootWindow(dev);

+}

+

+/**

+ * @return window underneath the cursor sprite.

+ */

+WindowPtr

+GetSpriteWindow(DeviceIntPtr pDev)

+{

+    return pDev->spriteInfo->sprite->win;

+}

+

+/**

+ * @return current sprite cursor.

+ */

+CursorPtr

+GetSpriteCursor(DeviceIntPtr pDev)

+{

+    return pDev->spriteInfo->sprite->current;

+}

+

+/**

+ * Set x/y current sprite position in screen coordinates.

+ */

+void

+GetSpritePosition(DeviceIntPtr pDev, int *px, int *py)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+    *px = pSprite->hotPhys.x;

+    *py = pSprite->hotPhys.y;

+}

+

+#ifdef PANORAMIX

+int

+XineramaGetCursorScreen(DeviceIntPtr pDev)

+{

+    if(!noPanoramiXExtension) {

+	return pDev->spriteInfo->sprite->screen->myNum;

+    } else {

+	return 0;

+    }

+}

+#endif /* PANORAMIX */

+

+#define TIMESLOP (5 * 60 * 1000) /* 5 minutes */

+

+static void

+MonthChangedOrBadTime(InternalEvent *ev)

+{

+    /* If the ddx/OS is careless about not processing timestamped events from

+     * different sources in sorted order, then it's possible for time to go

+     * backwards when it should not.  Here we ensure a decent time.

+     */

+    if ((currentTime.milliseconds - ev->any.time) > TIMESLOP)

+	currentTime.months++;

+    else

+        ev->any.time = currentTime.milliseconds;

+}

+

+static void

+NoticeTime(InternalEvent *ev)

+{

+    if (ev->any.time < currentTime.milliseconds)

+        MonthChangedOrBadTime(ev);

+    currentTime.milliseconds = ev->any.time;

+    lastDeviceEventTime = currentTime;

+}

+

+void

+NoticeEventTime(InternalEvent *ev)

+{

+    if (!syncEvents.playingEvents)

+	NoticeTime(ev);

+}

+

+/**************************************************************************

+ *            The following procedures deal with synchronous events       *

+ **************************************************************************/

+

+/**

+ * EnqueueEvent is a device's processInputProc if a device is frozen.

+ * Instead of delivering the events to the client, the event is tacked onto a

+ * linked list for later delivery.

+ */

+void

+EnqueueEvent(InternalEvent *ev, DeviceIntPtr device)

+{

+    QdEventPtr	tail = *syncEvents.pendtail;

+    QdEventPtr	qe;

+    SpritePtr	pSprite = device->spriteInfo->sprite;

+    int		eventlen;

+    DeviceEvent *event = &ev->device_event;

+

+    NoticeTime((InternalEvent*)event);

+

+    /* Fix for key repeating bug. */

+    if (device->key != NULL && device->key->xkbInfo != NULL &&

+        event->type == ET_KeyRelease)

+	AccessXCancelRepeatKey(device->key->xkbInfo, event->detail.key);

+

+    if (DeviceEventCallback)

+    {

+	DeviceEventInfoRec eventinfo;

+

+	/*  The RECORD spec says that the root window field of motion events

+	 *  must be valid.  At this point, it hasn't been filled in yet, so

+	 *  we do it here.  The long expression below is necessary to get

+	 *  the current root window; the apparently reasonable alternative

+	 *  GetCurrentRootWindow()->drawable.id doesn't give you the right

+	 *  answer on the first motion event after a screen change because

+	 *  the data that GetCurrentRootWindow relies on hasn't been

+	 *  updated yet.

+	 */

+	if (ev->any.type == ET_Motion)

+	    ev->device_event.root = WindowTable[pSprite->hotPhys.pScreen->myNum]->drawable.id;

+

+	eventinfo.event = ev;

+	eventinfo.device = device;

+	CallCallbacks(&DeviceEventCallback, (pointer)&eventinfo);

+    }

+

+    if (event->type == ET_Motion)

+    {

+#ifdef PANORAMIX

+	if(!noPanoramiXExtension) {

+            event->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -

+			      panoramiXdataPtr[0].x;

+	    event->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -

+			      panoramiXdataPtr[0].y;

+	}

+#endif

+	pSprite->hotPhys.x = event->root_x;

+	pSprite->hotPhys.y = event->root_y;

+	/* do motion compression, but not if from different devices */

+	if (tail &&

+	    (tail->event->any.type == ET_Motion) &&

+            (tail->device == device) &&

+	    (tail->pScreen == pSprite->hotPhys.pScreen))

+	{

+            DeviceEvent *tailev = &tail->event->device_event;

+	    tailev->root_x = pSprite->hotPhys.x;

+	    tailev->root_y = pSprite->hotPhys.y;

+	    tailev->time = event->time;

+	    tail->months = currentTime.months;

+	    return;

+	}

+    }

+

+    eventlen = event->length;

+

+    qe = malloc(sizeof(QdEventRec) + eventlen);

+    if (!qe)

+	return;

+    qe->next = (QdEventPtr)NULL;

+    qe->device = device;

+    qe->pScreen = pSprite->hotPhys.pScreen;

+    qe->months = currentTime.months;

+    qe->event = (InternalEvent *)(qe + 1);

+    memcpy(qe->event, event, eventlen);

+    if (tail)

+	syncEvents.pendtail = &tail->next;

+    *syncEvents.pendtail = qe;

+}

+

+/**

+ * Run through the list of events queued up in syncEvents.

+ * For each event do:

+ * If the device for this event is not frozen anymore, take it and process it

+ * as usually.

+ * After that, check if there's any devices in the list that are not frozen.

+ * If there is none, we're done. If there is at least one device that is not

+ * frozen, then re-run from the beginning of the event queue.

+ */

+static void

+PlayReleasedEvents(void)

+{

+    QdEventPtr *prev, qe;

+    DeviceIntPtr dev;

+    DeviceIntPtr pDev;

+

+    prev = &syncEvents.pending;

+    while ( (qe = *prev) )

+    {

+	if (!qe->device->deviceGrab.sync.frozen)

+	{

+	    *prev = qe->next;

+            pDev = qe->device;

+	    if (*syncEvents.pendtail == *prev)

+		syncEvents.pendtail = prev;

+	    if (qe->event->any.type == ET_Motion)

+		CheckVirtualMotion(pDev, qe, NullWindow);

+	    syncEvents.time.months = qe->months;

+            syncEvents.time.milliseconds = qe->event->any.time;

+#ifdef PANORAMIX

+	   /* Translate back to the sprite screen since processInputProc

+	      will translate from sprite screen to screen 0 upon reentry

+	      to the DIX layer */

+	    if(!noPanoramiXExtension) {

+                DeviceEvent *ev = &qe->event->device_event;

+                switch(ev->type)

+                {

+                    case ET_Motion:

+                    case ET_ButtonPress:

+                    case ET_ButtonRelease:

+                    case ET_KeyPress:

+                    case ET_KeyRelease:

+                    case ET_ProximityIn:

+                    case ET_ProximityOut:

+                        ev->root_x += panoramiXdataPtr[0].x -

+                            panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].x;

+                        ev->root_y += panoramiXdataPtr[0].y -

+                            panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].y;

+                        break;

+                    default:

+                        break;

+                }

+

+	    }

+#endif

+	    (*qe->device->public.processInputProc)(qe->event, qe->device);

+	    free(qe);

+	    for (dev = inputInfo.devices; dev && dev->deviceGrab.sync.frozen; dev = dev->next)

+		;

+	    if (!dev)

+		break;

+	    /* Playing the event may have unfrozen another device. */

+	    /* So to play it safe, restart at the head of the queue */

+	    prev = &syncEvents.pending;

+	}

+	else

+	    prev = &qe->next;

+    }

+}

+

+/**

+ * Freeze or thaw the given devices. The device's processing proc is

+ * switched to either the real processing proc (in case of thawing) or an

+ * enqueuing processing proc (usually EnqueueEvent()).

+ *

+ * @param dev The device to freeze/thaw

+ * @param frozen True to freeze or false to thaw.

+ */

+static void

+FreezeThaw(DeviceIntPtr dev, Bool frozen)

+{

+    dev->deviceGrab.sync.frozen = frozen;

+    if (frozen)

+	dev->public.processInputProc = dev->public.enqueueInputProc;

+    else

+	dev->public.processInputProc = dev->public.realInputProc;

+}

+

+/**

+ * Unfreeze devices and replay all events to the respective clients.

+ *

+ * ComputeFreezes takes the first event in the device's frozen event queue. It

+ * runs up the sprite tree (spriteTrace) and searches for the window to replay

+ * the events from. If it is found, it checks for passive grabs one down from

+ * the window or delivers the events.

+ */

+static void

+ComputeFreezes(void)

+{

+    DeviceIntPtr replayDev = syncEvents.replayDev;

+    int i;

+    WindowPtr w;

+    GrabPtr grab;

+    DeviceIntPtr dev;

+

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+	FreezeThaw(dev, dev->deviceGrab.sync.other ||

+                (dev->deviceGrab.sync.state >= FROZEN));

+    if (syncEvents.playingEvents || (!replayDev && !syncEvents.pending))

+	return;

+    syncEvents.playingEvents = TRUE;

+    if (replayDev)

+    {

+        DeviceEvent* event = replayDev->deviceGrab.sync.event;

+

+	syncEvents.replayDev = (DeviceIntPtr)NULL;

+

+        w = XYToWindow(replayDev, event->root_x, event->root_y);

+	for (i = 0; i < replayDev->spriteInfo->sprite->spriteTraceGood; i++)

+	{

+	    if (syncEvents.replayWin ==

+		replayDev->spriteInfo->sprite->spriteTrace[i])

+	    {

+		if (!CheckDeviceGrabs(replayDev, event, i+1)) {

+		    if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))

+			DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);

+		    else

+			DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,

+                                            NullWindow, replayDev);

+		}

+		goto playmore;

+	    }

+	}

+	/* must not still be in the same stack */

+	if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))

+	    DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);

+	else

+	    DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,

+                                NullWindow, replayDev);

+    }

+playmore:

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+    {

+	if (!dev->deviceGrab.sync.frozen)

+	{

+	    PlayReleasedEvents();

+	    break;

+	}

+    }

+    syncEvents.playingEvents = FALSE;

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+    {

+        if (DevHasCursor(dev))

+        {

+            /* the following may have been skipped during replay,

+              so do it now */

+            if ((grab = dev->deviceGrab.grab) && grab->confineTo)

+            {

+                if (grab->confineTo->drawable.pScreen !=

+                        dev->spriteInfo->sprite->hotPhys.pScreen)

+                    dev->spriteInfo->sprite->hotPhys.x =

+                        dev->spriteInfo->sprite->hotPhys.y = 0;

+                ConfineCursorToWindow(dev, grab->confineTo, TRUE, TRUE);

+            }

+            else

+                ConfineCursorToWindow(dev,

+                        WindowTable[dev->spriteInfo->sprite->hotPhys.pScreen->myNum],

+                        TRUE, FALSE);

+            PostNewCursor(dev);

+        }

+    }

+}

+

+#ifdef RANDR

+void

+ScreenRestructured (ScreenPtr pScreen)

+{

+    GrabPtr grab;

+    DeviceIntPtr pDev;

+

+    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)

+    {

+        if (!DevHasCursor(pDev))

+            continue;

+

+        /* GrabDevice doesn't have a confineTo field, so we don't need to

+         * worry about it. */

+        if ((grab = pDev->deviceGrab.grab) && grab->confineTo)

+        {

+            if (grab->confineTo->drawable.pScreen

+                    != pDev->spriteInfo->sprite->hotPhys.pScreen)

+                pDev->spriteInfo->sprite->hotPhys.x = pDev->spriteInfo->sprite->hotPhys.y = 0;

+            ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);

+        }

+        else

+            ConfineCursorToWindow(pDev,

+                    WindowTable[pDev->spriteInfo->sprite->hotPhys.pScreen->myNum],

+                    TRUE, FALSE);

+    }

+}

+#endif

+

+static void

+CheckGrabForSyncs(DeviceIntPtr thisDev, Bool thisMode, Bool otherMode)

+{

+    GrabPtr grab = thisDev->deviceGrab.grab;

+    DeviceIntPtr dev;

+

+    if (thisMode == GrabModeSync)

+	thisDev->deviceGrab.sync.state = FROZEN_NO_EVENT;

+    else

+    {	/* free both if same client owns both */

+	thisDev->deviceGrab.sync.state = THAWED;

+	if (thisDev->deviceGrab.sync.other &&

+	    (CLIENT_BITS(thisDev->deviceGrab.sync.other->resource) ==

+	     CLIENT_BITS(grab->resource)))

+	    thisDev->deviceGrab.sync.other = NullGrab;

+    }

+

+    if (IsMaster(thisDev))

+    {

+        dev = GetPairedDevice(thisDev);

+        if (otherMode == GrabModeSync)

+            dev->deviceGrab.sync.other = grab;

+        else

+        {	/* free both if same client owns both */

+            if (dev->deviceGrab.sync.other &&

+                    (CLIENT_BITS(dev->deviceGrab.sync.other->resource) ==

+                     CLIENT_BITS(grab->resource)))

+                dev->deviceGrab.sync.other = NullGrab;

+        }

+    }

+    ComputeFreezes();

+}

+

+/**

+ * Save the device's master device id. This needs to be done

+ * if a client directly grabs a slave device that is attached to a master. For

+ * the duration of the grab, the device is detached, ungrabbing re-attaches it

+ * though.

+ *

+ * We store the ID of the master device only in case the master disappears

+ * while the device has a grab.

+ */

+static void

+DetachFromMaster(DeviceIntPtr dev)

+{

+    if (!dev->u.master)

+        return;

+

+    dev->saved_master_id = dev->u.master->id;

+

+    AttachDevice(NULL, dev, NULL);

+}

+

+static void

+ReattachToOldMaster(DeviceIntPtr dev)

+{

+    DeviceIntPtr master = NULL;

+

+    if (IsMaster(dev))

+        return;

+

+    dixLookupDevice(&master, dev->saved_master_id, serverClient, DixUseAccess);

+

+    if (master)

+    {

+        AttachDevice(serverClient, dev, master);

+	dev->saved_master_id = 0;

+    }

+}

+

+/**

+ * Activate a pointer grab on the given device. A pointer grab will cause all

+ * core pointer events of this device to be delivered to the grabbing client only.

+ * No other device will send core events to the grab client while the grab is

+ * on, but core events will be sent to other clients.

+ * Can cause the cursor to change if a grab cursor is set.

+ *

+ * Note that parameter autoGrab may be (True & ImplicitGrabMask) if the grab

+ * is an implicit grab caused by a ButtonPress event.

+ *

+ * @param mouse The device to grab.

+ * @param grab The grab structure, needs to be setup.

+ * @param autoGrab True if the grab was caused by a button down event and not

+ * explicitely by a client.

+ */

+void

+ActivatePointerGrab(DeviceIntPtr mouse, GrabPtr grab,

+                    TimeStamp time, Bool autoGrab)

+{

+    GrabInfoPtr grabinfo = &mouse->deviceGrab;

+    WindowPtr oldWin = (grabinfo->grab) ?

+                        grabinfo->grab->window

+                        : mouse->spriteInfo->sprite->win;

+    Bool isPassive = autoGrab & ~ImplicitGrabMask;

+

+    /* slave devices need to float for the duration of the grab. */

+    if (grab->grabtype == GRABTYPE_XI2 &&

+        !(autoGrab & ImplicitGrabMask) && !IsMaster(mouse))

+        DetachFromMaster(mouse);

+

+    if (grab->confineTo)

+    {

+	if (grab->confineTo->drawable.pScreen

+                != mouse->spriteInfo->sprite->hotPhys.pScreen)

+	    mouse->spriteInfo->sprite->hotPhys.x =

+                mouse->spriteInfo->sprite->hotPhys.y = 0;

+	ConfineCursorToWindow(mouse, grab->confineTo, FALSE, TRUE);

+    }

+    DoEnterLeaveEvents(mouse, mouse->id, oldWin, grab->window, NotifyGrab);

+    mouse->valuator->motionHintWindow = NullWindow;

+    if (syncEvents.playingEvents)

+        grabinfo->grabTime = syncEvents.time;

+    else

+	grabinfo->grabTime = time;

+    if (grab->cursor)

+	grab->cursor->refcnt++;

+    grabinfo->activeGrab = *grab;

+    grabinfo->grab = &grabinfo->activeGrab;

+    grabinfo->fromPassiveGrab = isPassive;

+    grabinfo->implicitGrab = autoGrab & ImplicitGrabMask;

+    PostNewCursor(mouse);

+    CheckGrabForSyncs(mouse,(Bool)grab->pointerMode, (Bool)grab->keyboardMode);

+}

+

+/**

+ * Delete grab on given device, update the sprite.

+ *

+ * Extension devices are set up for ActivateKeyboardGrab().

+ */

+void

+DeactivatePointerGrab(DeviceIntPtr mouse)

+{

+    GrabPtr grab = mouse->deviceGrab.grab;

+    DeviceIntPtr dev;

+    Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&

+                        mouse->deviceGrab.implicitGrab);

+

+    mouse->valuator->motionHintWindow = NullWindow;

+    mouse->deviceGrab.grab = NullGrab;

+    mouse->deviceGrab.sync.state = NOT_GRABBED;

+    mouse->deviceGrab.fromPassiveGrab = FALSE;

+

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+    {

+	if (dev->deviceGrab.sync.other == grab)

+	    dev->deviceGrab.sync.other = NullGrab;

+    }

+    DoEnterLeaveEvents(mouse, mouse->id, grab->window,

+                       mouse->spriteInfo->sprite->win, NotifyUngrab);

+    if (grab->confineTo)

+	ConfineCursorToWindow(mouse, RootWindow(mouse), FALSE, FALSE);

+    PostNewCursor(mouse);

+    if (grab->cursor)

+	FreeCursor(grab->cursor, (Cursor)0);

+

+    if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)

+        ReattachToOldMaster(mouse);

+

+    ComputeFreezes();

+}

+

+/**

+ * Activate a keyboard grab on the given device.

+ *

+ * Extension devices have ActivateKeyboardGrab() set as their grabbing proc.

+ */

+void

+ActivateKeyboardGrab(DeviceIntPtr keybd, GrabPtr grab, TimeStamp time, Bool passive)

+{

+    GrabInfoPtr grabinfo = &keybd->deviceGrab;

+    WindowPtr oldWin;

+

+    /* slave devices need to float for the duration of the grab. */

+    if (grab->grabtype == GRABTYPE_XI2 &&

+        !(passive & ImplicitGrabMask) &&

+        !IsMaster(keybd))

+        DetachFromMaster(keybd);

+

+    if (grabinfo->grab)

+	oldWin = grabinfo->grab->window;

+    else if (keybd->focus)

+	oldWin = keybd->focus->win;

+    else

+	oldWin = keybd->spriteInfo->sprite->win;

+    if (oldWin == FollowKeyboardWin)

+	oldWin = keybd->focus->win;

+    if (keybd->valuator)

+	keybd->valuator->motionHintWindow = NullWindow;

+    DoFocusEvents(keybd, oldWin, grab->window, NotifyGrab);

+    if (syncEvents.playingEvents)

+	grabinfo->grabTime = syncEvents.time;

+    else

+	grabinfo->grabTime = time;

+    grabinfo->activeGrab = *grab;

+    grabinfo->grab = &grabinfo->activeGrab;

+    grabinfo->fromPassiveGrab = passive;

+    grabinfo->implicitGrab = passive & ImplicitGrabMask;

+    CheckGrabForSyncs(keybd, (Bool)grab->keyboardMode, (Bool)grab->pointerMode);

+}

+

+/**

+ * Delete keyboard grab for the given device.

+ */

+void

+DeactivateKeyboardGrab(DeviceIntPtr keybd)

+{

+    GrabPtr grab = keybd->deviceGrab.grab;

+    DeviceIntPtr dev;

+    WindowPtr focusWin = keybd->focus ? keybd->focus->win

+                                           : keybd->spriteInfo->sprite->win;

+    Bool wasImplicit = (keybd->deviceGrab.fromPassiveGrab &&

+                        keybd->deviceGrab.implicitGrab);

+

+    if (focusWin == FollowKeyboardWin)

+	focusWin = inputInfo.keyboard->focus->win;

+    if (keybd->valuator)

+	keybd->valuator->motionHintWindow = NullWindow;

+    keybd->deviceGrab.grab = NullGrab;

+    keybd->deviceGrab.sync.state = NOT_GRABBED;

+    keybd->deviceGrab.fromPassiveGrab = FALSE;

+

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+    {

+	if (dev->deviceGrab.sync.other == grab)

+	    dev->deviceGrab.sync.other = NullGrab;

+    }

+    DoFocusEvents(keybd, grab->window, focusWin, NotifyUngrab);

+

+    if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)

+        ReattachToOldMaster(keybd);

+

+    ComputeFreezes();

+}

+

+void

+AllowSome(ClientPtr client,

+          TimeStamp time,

+          DeviceIntPtr thisDev,

+          int newState)

+{

+    Bool thisGrabbed, otherGrabbed, othersFrozen, thisSynced;

+    TimeStamp grabTime;

+    DeviceIntPtr dev;

+    GrabInfoPtr devgrabinfo,

+                grabinfo = &thisDev->deviceGrab;

+

+    thisGrabbed = grabinfo->grab && SameClient(grabinfo->grab, client);

+    thisSynced = FALSE;

+    otherGrabbed = FALSE;

+    othersFrozen = FALSE;

+    grabTime = grabinfo->grabTime;

+    for (dev = inputInfo.devices; dev; dev = dev->next)

+    {

+        devgrabinfo = &dev->deviceGrab;

+

+	if (dev == thisDev)

+	    continue;

+	if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client))

+	{

+	    if (!(thisGrabbed || otherGrabbed) ||

+		(CompareTimeStamps(devgrabinfo->grabTime, grabTime) == LATER))

+		grabTime = devgrabinfo->grabTime;

+	    otherGrabbed = TRUE;

+	    if (grabinfo->sync.other == devgrabinfo->grab)

+		thisSynced = TRUE;

+	    if (devgrabinfo->sync.state >= FROZEN)

+		othersFrozen = TRUE;

+	}

+    }

+    if (!((thisGrabbed && grabinfo->sync.state >= FROZEN) || thisSynced))

+	return;

+    if ((CompareTimeStamps(time, currentTime) == LATER) ||

+	(CompareTimeStamps(time, grabTime) == EARLIER))

+	return;

+    switch (newState)

+    {

+	case THAWED:		       /* Async */

+	    if (thisGrabbed)

+		grabinfo->sync.state = THAWED;

+	    if (thisSynced)

+		grabinfo->sync.other = NullGrab;

+	    ComputeFreezes();

+	    break;

+	case FREEZE_NEXT_EVENT:		/* Sync */

+	    if (thisGrabbed)

+	    {

+		grabinfo->sync.state = FREEZE_NEXT_EVENT;

+		if (thisSynced)

+		    grabinfo->sync.other = NullGrab;

+		ComputeFreezes();

+	    }

+	    break;

+	case THAWED_BOTH:		/* AsyncBoth */

+	    if (othersFrozen)

+	    {

+		for (dev = inputInfo.devices; dev; dev = dev->next)

+		{

+                    devgrabinfo = &dev->deviceGrab;

+		    if (devgrabinfo->grab

+                            && SameClient(devgrabinfo->grab, client))

+			devgrabinfo->sync.state = THAWED;

+		    if (devgrabinfo->sync.other &&

+                            SameClient(devgrabinfo->sync.other, client))

+			devgrabinfo->sync.other = NullGrab;

+		}

+		ComputeFreezes();

+	    }

+	    break;

+	case FREEZE_BOTH_NEXT_EVENT:	/* SyncBoth */

+	    if (othersFrozen)

+	    {

+		for (dev = inputInfo.devices; dev; dev = dev->next)

+		{

+                    devgrabinfo = &dev->deviceGrab;

+		    if (devgrabinfo->grab

+                            && SameClient(devgrabinfo->grab, client))

+			devgrabinfo->sync.state = FREEZE_BOTH_NEXT_EVENT;

+		    if (devgrabinfo->sync.other

+                            && SameClient(devgrabinfo->sync.other, client))

+			devgrabinfo->sync.other = NullGrab;

+		}

+		ComputeFreezes();

+	    }

+	    break;

+	case NOT_GRABBED:		/* Replay */

+	    if (thisGrabbed && grabinfo->sync.state == FROZEN_WITH_EVENT)

+	    {

+		if (thisSynced)

+		    grabinfo->sync.other = NullGrab;

+		syncEvents.replayDev = thisDev;

+		syncEvents.replayWin = grabinfo->grab->window;

+		(*grabinfo->DeactivateGrab)(thisDev);

+		syncEvents.replayDev = (DeviceIntPtr)NULL;

+	    }

+	    break;

+	case THAW_OTHERS:		/* AsyncOthers */

+	    if (othersFrozen)

+	    {

+		for (dev = inputInfo.devices; dev; dev = dev->next)

+		{

+		    if (dev == thisDev)

+			continue;

+                    devgrabinfo = &dev->deviceGrab;

+		    if (devgrabinfo->grab

+                            && SameClient(devgrabinfo->grab, client))

+			devgrabinfo->sync.state = THAWED;

+		    if (devgrabinfo->sync.other

+                            && SameClient(devgrabinfo->sync.other, client))

+			devgrabinfo->sync.other = NullGrab;

+		}

+		ComputeFreezes();

+	    }

+	    break;

+    }

+}

+

+/**

+ * Server-side protocol handling for AllowEvents request.

+ *

+ * Release some events from a frozen device.

+ */

+int

+ProcAllowEvents(ClientPtr client)

+{

+    TimeStamp		time;

+    DeviceIntPtr	mouse = NULL;

+    DeviceIntPtr	keybd = NULL;

+    REQUEST(xAllowEventsReq);

+

+    REQUEST_SIZE_MATCH(xAllowEventsReq);

+    time = ClientTimeToServerTime(stuff->time);

+

+    mouse = PickPointer(client);

+    keybd = PickKeyboard(client);

+

+    switch (stuff->mode)

+    {

+	case ReplayPointer:

+	    AllowSome(client, time, mouse, NOT_GRABBED);

+	    break;

+	case SyncPointer:

+	    AllowSome(client, time, mouse, FREEZE_NEXT_EVENT);

+	    break;

+	case AsyncPointer:

+	    AllowSome(client, time, mouse, THAWED);

+	    break;

+	case ReplayKeyboard:

+	    AllowSome(client, time, keybd, NOT_GRABBED);

+	    break;

+	case SyncKeyboard:

+	    AllowSome(client, time, keybd, FREEZE_NEXT_EVENT);

+	    break;

+	case AsyncKeyboard:

+	    AllowSome(client, time, keybd, THAWED);

+	    break;

+	case SyncBoth:

+	    AllowSome(client, time, keybd, FREEZE_BOTH_NEXT_EVENT);

+	    break;

+	case AsyncBoth:

+	    AllowSome(client, time, keybd, THAWED_BOTH);

+	    break;

+	default:

+	    client->errorValue = stuff->mode;

+	    return BadValue;

+    }

+    return Success;

+}

+

+/**

+ * Deactivate grabs from any device that has been grabbed by the client.

+ */

+void

+ReleaseActiveGrabs(ClientPtr client)

+{

+    DeviceIntPtr dev;

+    Bool    done;

+

+    /* XXX CloseDownClient should remove passive grabs before

+     * releasing active grabs.

+     */

+    do {

+	done = TRUE;

+	for (dev = inputInfo.devices; dev; dev = dev->next)

+	{

+	    if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))

+	    {

+		(*dev->deviceGrab.DeactivateGrab)(dev);

+		done = FALSE;

+	    }

+	}

+    } while (!done);

+}

+

+/**************************************************************************

+ *            The following procedures deal with delivering events        *

+ **************************************************************************/

+

+/**

+ * Deliver the given events to the given client.

+ *

+ * More than one event may be delivered at a time. This is the case with

+ * DeviceMotionNotifies which may be followed by DeviceValuator events.

+ *

+ * TryClientEvents() is the last station before actually writing the events to

+ * the socket. Anything that is not filtered here, will get delivered to the

+ * client.

+ * An event is only delivered if

+ *   - mask and filter match up.

+ *   - no other client has a grab on the device that caused the event.

+ *

+ *

+ * @param client The target client to deliver to.

+ * @param dev The device the event came from. May be NULL.

+ * @param pEvents The events to be delivered.

+ * @param count Number of elements in pEvents.

+ * @param mask Event mask as set by the window.

+ * @param filter Mask based on event type.

+ * @param grab Possible grab on the device that caused the event.

+ *

+ * @return 1 if event was delivered, 0 if not or -1 if grab was not set by the

+ * client.

+ */

+int

+TryClientEvents (ClientPtr client, DeviceIntPtr dev, xEvent *pEvents,

+                 int count, Mask mask, Mask filter, GrabPtr grab)

+{

+    int i;

+    int type;

+

+#ifdef DEBUG_EVENTS

+    ErrorF("[dix] Event([%d, %d], mask=0x%lx), client=%d%s",

+           pEvents->u.u.type, pEvents->u.u.detail, mask,

+           client ? client->index : -1,

+           (client && client->clientGone) ? " (gone)" : "");

+#endif

+

+    if (!client || client == serverClient || client->clientGone) {

+#ifdef DEBUG_EVENTS

+        ErrorF(" not delivered to fake/dead client\n");

+#endif

+        return 0;

+    }

+

+    if (filter != CantBeFiltered && !(mask & filter))

+    {

+ #ifdef DEBUG_EVENTS

+        ErrorF(" filtered\n");

+ #endif

+        return 0;

+    }

+

+    if (grab && !SameClient(grab, client))

+    {

+#ifdef DEBUG_EVENTS

+        ErrorF(" not delivered due to grab\n");

+#endif

+        return -1; /* don't send, but notify caller */

+    }

+

+    type = pEvents->u.u.type;

+    if (type == MotionNotify)

+    {

+        if (mask & PointerMotionHintMask)

+        {

+            if (WID(dev->valuator->motionHintWindow) ==

+                    pEvents->u.keyButtonPointer.event)

+            {

+#ifdef DEBUG_EVENTS

+                ErrorF("[dix] \n");

+                ErrorF("[dix] motionHintWindow == keyButtonPointer.event\n");

+#endif

+                return 1; /* don't send, but pretend we did */

+            }

+            pEvents->u.u.detail = NotifyHint;

+        }

+        else

+        {

+            pEvents->u.u.detail = NotifyNormal;

+        }

+    }

+    else if (type == DeviceMotionNotify)

+    {

+        if (MaybeSendDeviceMotionNotifyHint((deviceKeyButtonPointer*)pEvents,

+                                            mask) != 0)

+            return 1;

+    } else if (type == KeyPress)

+    {

+        if (EventIsKeyRepeat(pEvents))

+        {

+            if (!_XkbWantsDetectableAutoRepeat(client))

+            {

+                xEvent release = *pEvents;

+                release.u.u.type = KeyRelease;

+                release.u.u.sequenceNumber = client->sequence;

+                WriteEventsToClient(client, 1, &release);

+#ifdef DEBUG_EVENTS

+                ErrorF(" (plus fake core release for repeat)");

+#endif

+            } else

+            {

+#ifdef DEBUG_EVENTS

+                ErrorF(" (detectable autorepeat for core)");

+#endif

+            }

+        }

+

+    } else if (type == DeviceKeyPress)

+    {

+        if (EventIsKeyRepeat(pEvents))

+        {

+            if (!_XkbWantsDetectableAutoRepeat(client))

+            {

+                deviceKeyButtonPointer release = *(deviceKeyButtonPointer *)pEvents;

+                release.type = DeviceKeyRelease;

+                release.sequenceNumber = client->sequence;

+#ifdef DEBUG_EVENTS

+                ErrorF(" (plus fake xi1 release for repeat)");

+#endif

+                WriteEventsToClient(client, 1, (xEvent *) &release);

+            }

+            else {

+#ifdef DEBUG_EVENTS

+                ErrorF(" (detectable autorepeat for core)");

+#endif

+            }

+        }

+    }

+

+    type &= 0177;

+    if (type != KeymapNotify)

+    {

+        /* all extension events must have a sequence number */

+        for (i = 0; i < count; i++)

+            pEvents[i].u.u.sequenceNumber = client->sequence;

+    }

+

+    if (BitIsOn(criticalEvents, type))

+    {

+        if (client->smart_priority < SMART_MAX_PRIORITY)

+            client->smart_priority++;

+        SetCriticalOutputPending();

+    }

+

+    WriteEventsToClient(client, count, pEvents);

+#ifdef DEBUG_EVENTS

+    ErrorF("[dix]  delivered\n");

+#endif

+    return 1;

+}

+

+/**

+ * Deliver events to a window. At this point, we do not yet know if the event

+ * actually needs to be delivered. May activate a grab if the event is a

+ * button press.

+ *

+ * Core events are always delivered to the window owner. If the filter is

+ * something other than CantBeFiltered, the event is also delivered to other

+ * clients with the matching mask on the window.

+ *

+ * More than one event may be delivered at a time. This is the case with

+ * DeviceMotionNotifies which may be followed by DeviceValuator events.

+ *

+ * @param pWin The window that would get the event.

+ * @param pEvents The events to be delivered.

+ * @param count Number of elements in pEvents.

+ * @param filter Mask based on event type.

+ * @param grab Possible grab on the device that caused the event.

+ *

+ * @return Number of events delivered to various clients.

+ */

+int

+DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent

+        *pEvents, int count, Mask filter, GrabPtr grab)

+{

+    int deliveries = 0, nondeliveries = 0;

+    int attempt;

+    InputClients *other;

+    ClientPtr client = NullClient;

+    Mask deliveryMask = 0; /* If a grab occurs due to a button press, then

+		              this mask is the mask of the grab. */

+    int type = pEvents->u.u.type;

+

+

+    /* Deliver to window owner */

+    if ((filter == CantBeFiltered) || CORE_EVENT(pEvents))

+    {

+	/* if nobody ever wants to see this event, skip some work */

+	if (filter != CantBeFiltered &&

+	    !((wOtherEventMasks(pWin)|pWin->eventMask) & filter))

+	    return 0;

+

+        if (IsInterferingGrab(wClient(pWin), pDev, pEvents))

+                return 0;

+

+	if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))

+	    /* do nothing */;

+        else if ( (attempt = TryClientEvents(wClient(pWin), pDev, pEvents,

+                                             count, pWin->eventMask,

+                                             filter, grab)) )

+	{

+	    if (attempt > 0)

+	    {

+		deliveries++;

+		client = wClient(pWin);

+		deliveryMask = pWin->eventMask;

+	    } else

+		nondeliveries--;

+	}

+    }

+

+    /* CantBeFiltered means only window owner gets the event */

+    if (filter != CantBeFiltered)

+    {

+        if (CORE_EVENT(pEvents))

+            other = (InputClients *)wOtherClients(pWin);

+        else if (XI2_EVENT(pEvents))

+        {

+            OtherInputMasks *inputMasks = wOtherInputMasks(pWin);

+            /* Has any client selected for the event? */

+            if (!GetWindowXI2Mask(pDev, pWin, pEvents))

+                return 0;

+            other = inputMasks->inputClients;

+        } else {

+            OtherInputMasks *inputMasks = wOtherInputMasks(pWin);

+            /* Has any client selected for the event? */

+            if (!inputMasks ||

+                !(inputMasks->inputEvents[pDev->id] & filter))

+                return 0;

+

+            other = inputMasks->inputClients;

+        }

+

+        for (; other; other = other->next)

+        {

+            Mask mask;

+            if (IsInterferingGrab(rClient(other), pDev, pEvents))

+                continue;

+

+            mask = GetEventMask(pDev, pEvents, other);

+

+            if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin,

+                        pEvents, count))

+                /* do nothing */;

+            else if ( (attempt = TryClientEvents(rClient(other), pDev,

+                            pEvents, count,

+                            mask, filter, grab)) )

+            {

+                if (attempt > 0)

+                {

+                    deliveries++;

+                    client = rClient(other);

+                    deliveryMask = mask;

+                } else

+                    nondeliveries--;

+            }

+        }

+    }

+    /*

+     * Note that since core events are delivered first, an implicit grab may

+     * be activated on a core grab, stopping the XI events.

+     */

+    if ((type == DeviceButtonPress || type == ButtonPress ||

+        ((XI2_EVENT(pEvents) && ((xGenericEvent*)pEvents)->evtype == XI_ButtonPress)))

+            && deliveries

+            && (!grab))

+    {

+	GrabRec tempGrab;

+        OtherInputMasks *inputMasks;

+

+        memset(&tempGrab, 0, sizeof(GrabRec));

+        tempGrab.next = NULL;

+	tempGrab.device = pDev;

+	tempGrab.resource = client->clientAsMask;

+	tempGrab.window = pWin;

+	tempGrab.ownerEvents = (deliveryMask & OwnerGrabButtonMask) ? TRUE : FALSE;

+	tempGrab.eventMask = deliveryMask;

+	tempGrab.keyboardMode = GrabModeAsync;

+	tempGrab.pointerMode = GrabModeAsync;

+	tempGrab.confineTo = NullWindow;

+	tempGrab.cursor = NullCursor;

+        tempGrab.type = type;

+        if (type == ButtonPress)

+            tempGrab.grabtype = GRABTYPE_CORE;

+        else if (type == DeviceButtonPress)

+            tempGrab.grabtype = GRABTYPE_XI;

+        else

+        {

+            tempGrab.type = ((xGenericEvent*)pEvents)->evtype;

+            tempGrab.grabtype = GRABTYPE_XI2;

+        }

+

+        /* get the XI and XI2 device mask */

+        inputMasks = wOtherInputMasks(pWin);

+        tempGrab.deviceMask = (inputMasks) ? inputMasks->inputEvents[pDev->id]: 0;

+

+        if (inputMasks)

+            memcpy(tempGrab.xi2mask, inputMasks->xi2mask,

+                    sizeof(tempGrab.xi2mask));

+

+	(*pDev->deviceGrab.ActivateGrab)(pDev, &tempGrab,

+                                        currentTime, TRUE | ImplicitGrabMask);

+    }

+    else if ((type == MotionNotify) && deliveries)

+	pDev->valuator->motionHintWindow = pWin;

+    else

+    {

+	if ((type == DeviceMotionNotify || type == DeviceButtonPress) &&

+	    deliveries)

+	    CheckDeviceGrabAndHintWindow (pWin, type,

+					  (deviceKeyButtonPointer*) pEvents,

+					  grab, client, deliveryMask);

+    }

+    if (deliveries)

+	return deliveries;

+    return nondeliveries;

+}

+

+/* If the event goes to dontClient, don't send it and return 0.  if

+   send works,  return 1 or if send didn't work, return 2.

+   Only works for core events.

+*/

+

+#ifdef PANORAMIX

+static int

+XineramaTryClientEventsResult(

+    ClientPtr client,

+    GrabPtr grab,

+    Mask mask,

+    Mask filter

+){

+    if ((client) && (client != serverClient) && (!client->clientGone) &&

+        ((filter == CantBeFiltered) || (mask & filter)))

+    {

+        if (grab && !SameClient(grab, client)) return -1;

+	else return 1;

+    }

+    return 0;

+}

+#endif

+

+/**

+ * Try to deliver events to the interested parties.

+ *

+ * @param pWin The window that would get the event.

+ * @param pEvents The events to be delivered.

+ * @param count Number of elements in pEvents.

+ * @param filter Mask based on event type.

+ * @param dontClient Don't deliver to the dontClient.

+ */

+int

+MaybeDeliverEventsToClient(WindowPtr pWin, xEvent *pEvents,

+                           int count, Mask filter, ClientPtr dontClient)

+{

+    OtherClients *other;

+

+

+    if (pWin->eventMask & filter)

+    {

+        if (wClient(pWin) == dontClient)

+	    return 0;

+#ifdef PANORAMIX

+	if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)

+	    return XineramaTryClientEventsResult(

+			wClient(pWin), NullGrab, pWin->eventMask, filter);

+#endif

+	if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))

+	    return 1; /* don't send, but pretend we did */

+	return TryClientEvents(wClient(pWin), NULL, pEvents, count,

+			       pWin->eventMask, filter, NullGrab);

+    }

+    for (other = wOtherClients(pWin); other; other = other->next)

+    {

+	if (other->mask & filter)

+	{

+            if (SameClient(other, dontClient))

+		return 0;

+#ifdef PANORAMIX

+	    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)

+	      return XineramaTryClientEventsResult(

+			rClient(other), NullGrab, other->mask, filter);

+#endif

+	    if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin, pEvents,

+			 count))

+		return 1; /* don't send, but pretend we did */

+	    return TryClientEvents(rClient(other), NULL, pEvents, count,

+				   other->mask, filter, NullGrab);

+	}

+    }

+    return 2;

+}

+

+static Window FindChildForEvent(DeviceIntPtr dev, WindowPtr event)

+{

+    SpritePtr pSprite = dev->spriteInfo->sprite;

+    WindowPtr w = pSprite->spriteTrace[pSprite->spriteTraceGood-1];

+    Window child = None;

+

+    /* If the search ends up past the root should the child field be

+       set to none or should the value in the argument be passed

+       through. It probably doesn't matter since everyone calls

+       this function with child == None anyway. */

+    while (w)

+    {

+        /* If the source window is same as event window, child should be

+           none.  Don't bother going all all the way back to the root. */

+

+        if (w == event)

+        {

+            child = None;

+            break;

+        }

+

+        if (w->parent == event)

+        {

+            child = w->drawable.id;

+            break;

+        }

+        w = w->parent;

+    }

+    return child;

+}

+

+/**

+ * Adjust event fields to comply with the window properties.

+ *

+ * @param xE Event to be modified in place

+ * @param pWin The window to get the information from.

+ * @param child Child window setting for event (if applicable)

+ * @param calcChild If True, calculate the child window.

+ */

+void

+FixUpEventFromWindow(

+    DeviceIntPtr pDev,

+    xEvent *xE,

+    WindowPtr pWin,

+    Window child,

+    Bool calcChild)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    if (calcChild)

+        child = FindChildForEvent(pDev, pWin);

+

+    if (XI2_EVENT(xE))

+    {

+        xXIDeviceEvent* event = (xXIDeviceEvent*)xE;

+

+        if (event->evtype == XI_RawKeyPress ||

+            event->evtype == XI_RawKeyRelease ||

+            event->evtype == XI_RawButtonPress ||

+            event->evtype == XI_RawButtonRelease ||

+            event->evtype == XI_RawMotion ||

+            event->evtype == XI_DeviceChanged ||

+            event->evtype == XI_HierarchyChanged ||

+            event->evtype == XI_PropertyEvent)

+            return;

+

+        event->root = RootWindow(pDev)->drawable.id;

+        event->event = pWin->drawable.id;

+        if (pSprite->hot.pScreen == pWin->drawable.pScreen)

+        {

+            event->event_x = event->root_x - FP1616(pWin->drawable.x, 0);

+            event->event_y = event->root_y - FP1616(pWin->drawable.y, 0);

+            event->child = child;

+        } else

+        {

+            event->event_x = 0;

+            event->event_y = 0;

+            event->child = None;

+        }

+

+        if (event->evtype == XI_Enter || event->evtype == XI_Leave ||

+            event->evtype == XI_FocusIn || event->evtype == XI_FocusOut)

+            ((xXIEnterEvent*)event)->same_screen =

+                (pSprite->hot.pScreen == pWin->drawable.pScreen);

+

+    } else

+    {

+        XE_KBPTR.root = RootWindow(pDev)->drawable.id;

+        XE_KBPTR.event = pWin->drawable.id;

+        if (pSprite->hot.pScreen == pWin->drawable.pScreen)

+        {

+            XE_KBPTR.sameScreen = xTrue;

+            XE_KBPTR.child = child;

+            XE_KBPTR.eventX =

+                XE_KBPTR.rootX - pWin->drawable.x;

+            XE_KBPTR.eventY =

+                XE_KBPTR.rootY - pWin->drawable.y;

+        }

+        else

+        {

+            XE_KBPTR.sameScreen = xFalse;

+            XE_KBPTR.child = None;

+            XE_KBPTR.eventX = 0;

+            XE_KBPTR.eventY = 0;

+        }

+    }

+}

+

+/**

+ * Return masks for EventIsDeliverable.

+ * @defgroup EventIsDeliverable return flags

+ * @{

+ */

+#define XI_MASK                 (1 << 0) /**< XI mask set on window */

+#define CORE_MASK               (1 << 1) /**< Core mask set on window */

+#define DONT_PROPAGATE_MASK     (1 << 2) /**< DontPropagate mask set on window */

+#define XI2_MASK                (1 << 3) /**< XI2 mask set on window */

+/* @} */

+

+/**

+ * Check if a given event is deliverable at all on a given window.

+ *

+ * This function only checks if any client wants it, not for a specific

+ * client.

+ *

+ * @param[in] dev The device this event is being sent for.

+ * @param[in] event The event that is to be sent.

+ * @param[in] win The current event window.

+ *

+ * @return Bitmask of ::XI2_MASK, ::XI_MASK, ::CORE_MASK, and

+ * ::DONT_PROPAGATE_MASK.

+ */

+static int

+EventIsDeliverable(DeviceIntPtr dev, InternalEvent* event, WindowPtr win)

+{

+    int rc = 0;

+    int filter = 0;

+    int type;

+    OtherInputMasks *inputMasks = wOtherInputMasks(win);

+    xEvent ev;

+

+    /* XXX: this makes me gag */

+    type = GetXI2Type(event);

+    ev.u.u.type = GenericEvent; /* GetEventFilter only cares about type and evtype*/

+    ((xGenericEvent*)&ev)->extension = IReqCode;

+    ((xGenericEvent*)&ev)->evtype = type;

+    filter = GetEventFilter(dev, &ev);

+    if (type && inputMasks &&

+        ((inputMasks->xi2mask[XIAllDevices][type/8] & filter) ||

+         ((inputMasks->xi2mask[XIAllMasterDevices][type/8] & filter) && IsMaster(dev)) ||

+         (inputMasks->xi2mask[dev->id][type/8] & filter)))

+        rc |= XI2_MASK;

+

+    type = GetXIType(event);

+    ev.u.u.type = type;

+    filter = GetEventFilter(dev, &ev);

+

+    /* Check for XI mask */

+    if (type && inputMasks &&

+        (inputMasks->deliverableEvents[dev->id] & filter) &&

+        (inputMasks->inputEvents[dev->id] & filter))

+        rc |= XI_MASK;

+

+    /* Check for XI DontPropagate mask */

+    if (type && inputMasks &&

+        (inputMasks->dontPropagateMask[dev->id] & filter))

+        rc |= DONT_PROPAGATE_MASK;

+

+    /* Check for core mask */

+    type = GetCoreType(event);

+    if (type && (win->deliverableEvents & filter) &&

+        ((wOtherEventMasks(win) | win->eventMask) & filter))

+        rc |= CORE_MASK;

+

+    /* Check for core DontPropagate mask */

+    if (type && (filter & wDontPropagateMask(win)))

+        rc |= DONT_PROPAGATE_MASK;

+

+    return rc;

+}

+

+/**

+ * Deliver events caused by input devices.

+ *

+ * For events from a non-grabbed, non-focus device, DeliverDeviceEvents is

+ * called directly from the processInputProc.

+ * For grabbed devices, DeliverGrabbedEvent is called first, and _may_ call

+ * DeliverDeviceEvents.

+ * For focused events, DeliverFocusedEvent is called first, and _may_ call

+ * DeliverDeviceEvents.

+ *

+ * @param pWin Window to deliver event to.

+ * @param event The events to deliver, not yet in wire format.

+ * @param grab Possible grab on a device.

+ * @param stopAt Don't recurse up to the root window.

+ * @param dev The device that is responsible for the event.

+ *

+ * @see DeliverGrabbedEvent

+ * @see DeliverFocusedEvent

+ */

+int

+DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab,

+                    WindowPtr stopAt, DeviceIntPtr dev)

+{

+    Window child = None;

+    Mask filter;

+    int deliveries = 0;

+    xEvent core;

+    xEvent *xE = NULL;

+    int rc, mask, count = 0;

+

+    CHECKEVENT(event);

+

+    while (pWin)

+    {

+        if ((mask = EventIsDeliverable(dev, event, pWin)))

+        {

+            /* XI2 events first */

+            if (mask & XI2_MASK)

+            {

+                xEvent *xi2 = NULL;

+                rc = EventToXI2(event, &xi2);

+                if (rc == Success)

+                {

+                    /* XXX: XACE */

+                    filter = GetEventFilter(dev, xi2);

+                    FixUpEventFromWindow(dev, xi2, pWin, child, FALSE);

+                    deliveries = DeliverEventsToWindow(dev, pWin, xi2, 1,

+                                                       filter, grab);

+                    free(xi2);

+                    if (deliveries > 0)

+                        goto unwind;

+                } else if (rc != BadMatch)

+                    ErrorF("[dix] %s: XI2 conversion failed in DDE (%d).\n",

+                            dev->name, rc);

+            }

+

+            /* XI events */

+            if (mask & XI_MASK)

+            {

+                rc = EventToXI(event, &xE, &count);

+                if (rc == Success) {

+                    if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, xE, count) == Success) {

+                        filter = GetEventFilter(dev, xE);

+                        FixUpEventFromWindow(dev, xE, pWin, child, FALSE);

+                        deliveries = DeliverEventsToWindow(dev, pWin, xE, count,

+                                                           filter, grab);

+                        if (deliveries > 0)

+                            goto unwind;

+                    }

+                } else if (rc != BadMatch)

+                    ErrorF("[dix] %s: XI conversion failed in DDE (%d, %d). Skipping delivery.\n",

+                            dev->name, event->any.type, rc);

+            }

+

+            /* Core event */

+            if ((mask & CORE_MASK) && IsMaster(dev) && dev->coreEvents)

+            {

+                rc = EventToCore(event, &core);

+                if (rc == Success) {

+                    if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, &core, 1) == Success) {

+                        filter = GetEventFilter(dev, &core);

+                        FixUpEventFromWindow(dev, &core, pWin, child, FALSE);

+                        deliveries = DeliverEventsToWindow(dev, pWin, &core, 1,

+                                                           filter, grab);

+                        if (deliveries > 0)

+                            goto unwind;

+                    }

+                } else if (rc != BadMatch)

+                        ErrorF("[dix] %s: Core conversion failed in DDE (%d, %d).\n",

+                                dev->name, event->any.type, rc);

+            }

+

+            if ((deliveries < 0) || (pWin == stopAt) ||

+                (mask & DONT_PROPAGATE_MASK))

+            {

+                deliveries = 0;

+                goto unwind;

+            }

+        }

+

+        child = pWin->drawable.id;

+        pWin = pWin->parent;

+    }

+

+unwind:

+    free(xE);

+    return deliveries;

+}

+

+#undef XI_MASK

+#undef CORE_MASK

+#undef DONT_PROPAGATE_MASK

+

+/**

+ * Deliver event to a window and it's immediate parent. Used for most window

+ * events (CreateNotify, ConfigureNotify, etc.). Not useful for events that

+ * propagate up the tree or extension events

+ *

+ * In case of a ReparentNotify event, the event will be delivered to the

+ * otherParent as well.

+ *

+ * @param pWin Window to deliver events to.

+ * @param xE Events to deliver.

+ * @param count number of events in xE.

+ * @param otherParent Used for ReparentNotify events.

+ */

+int

+DeliverEvents(WindowPtr pWin, xEvent *xE, int count,

+              WindowPtr otherParent)

+{

+    Mask filter;

+    int     deliveries;

+    DeviceIntRec dummy;

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)

+	return count;

+#endif

+

+    if (!count)

+	return 0;

+

+    dummy.id = XIAllDevices;

+    filter = GetEventFilter(&dummy, xE);

+    if ((filter & SubstructureNotifyMask) && (xE->u.u.type != CreateNotify))

+	xE->u.destroyNotify.event = pWin->drawable.id;

+    if (filter != StructureAndSubMask)

+	return DeliverEventsToWindow(&dummy, pWin, xE, count, filter, NullGrab);

+    deliveries = DeliverEventsToWindow(&dummy, pWin, xE, count,

+                                       StructureNotifyMask, NullGrab);

+    if (pWin->parent)

+    {

+	xE->u.destroyNotify.event = pWin->parent->drawable.id;

+	deliveries += DeliverEventsToWindow(&dummy, pWin->parent, xE, count,

+					    SubstructureNotifyMask, NullGrab);

+	if (xE->u.u.type == ReparentNotify)

+	{

+	    xE->u.destroyNotify.event = otherParent->drawable.id;

+            deliveries += DeliverEventsToWindow(&dummy,

+                    otherParent, xE, count, SubstructureNotifyMask,

+						NullGrab);

+	}

+    }

+    return deliveries;

+}

+

+

+static Bool

+PointInBorderSize(WindowPtr pWin, int x, int y)

+{

+    BoxRec box;

+

+    if(POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderSize, x, y, &box))

+	return TRUE;

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension &&

+            XineramaSetWindowPntrs(inputInfo.pointer, pWin)) {

+	SpritePtr pSprite = inputInfo.pointer->spriteInfo->sprite;

+	int i;

+

+	for(i = 1; i < PanoramiXNumScreens; i++) {

+	   if(POINT_IN_REGION(pSprite->screen,

+			&pSprite->windows[i]->borderSize,

+			x + panoramiXdataPtr[0].x - panoramiXdataPtr[i].x,

+			y + panoramiXdataPtr[0].y - panoramiXdataPtr[i].y,

+			&box))

+		return TRUE;

+	}

+    }

+#endif

+    return FALSE;

+}

+

+/**

+ * Traversed from the root window to the window at the position x/y. While

+ * traversing, it sets up the traversal history in the spriteTrace array.

+ * After completing, the spriteTrace history is set in the following way:

+ *   spriteTrace[0] ... root window

+ *   spriteTrace[1] ... top level window that encloses x/y

+ *       ...

+ *   spriteTrace[spriteTraceGood - 1] ... window at x/y

+ *

+ * @returns the window at the given coordinates.

+ */

+static WindowPtr

+XYToWindow(DeviceIntPtr pDev, int x, int y)

+{

+    WindowPtr  pWin;

+    BoxRec		box;

+    SpritePtr pSprite;

+

+    pSprite = pDev->spriteInfo->sprite;

+    pSprite->spriteTraceGood = 1;	/* root window still there */

+    pWin = RootWindow(pDev)->firstChild;

+    while (pWin)

+    {

+	if ((pWin->mapped) &&

+	    (x >= pWin->drawable.x - wBorderWidth (pWin)) &&

+	    (x < pWin->drawable.x + (int)pWin->drawable.width +

+	     wBorderWidth(pWin)) &&

+	    (y >= pWin->drawable.y - wBorderWidth (pWin)) &&

+	    (y < pWin->drawable.y + (int)pWin->drawable.height +

+	     wBorderWidth (pWin))

+	    /* When a window is shaped, a further check

+	     * is made to see if the point is inside

+	     * borderSize

+	     */

+	    && (!wBoundingShape(pWin) || PointInBorderSize(pWin, x, y))

+	    && (!wInputShape(pWin) ||

+		POINT_IN_REGION(pWin->drawable.pScreen,

+				wInputShape(pWin),

+				x - pWin->drawable.x,

+				y - pWin->drawable.y, &box))

+#ifdef ROOTLESS

+    /* In rootless mode windows may be offscreen, even when

+     * they're in X's stack. (E.g. if the native window system

+     * implements some form of virtual desktop system).

+     */

+		&& !pWin->rootlessUnhittable

+#endif

+	    )

+	{

+	    if (pSprite->spriteTraceGood >= pSprite->spriteTraceSize)

+	    {

+		pSprite->spriteTraceSize += 10;

+		pSprite->spriteTrace = realloc(pSprite->spriteTrace,

+		                    pSprite->spriteTraceSize*sizeof(WindowPtr));

+	    }

+	    pSprite->spriteTrace[pSprite->spriteTraceGood++] = pWin;

+	    pWin = pWin->firstChild;

+	}

+	else

+	    pWin = pWin->nextSib;

+    }

+    return pSprite->spriteTrace[pSprite->spriteTraceGood-1];

+}

+

+/**

+ * Ungrab a currently FocusIn grabbed device and grab the device on the

+ * given window. If the win given is the NoneWin, the device is ungrabbed if

+ * applicable and FALSE is returned.

+ *

+ * @returns TRUE if the device has been grabbed, or FALSE otherwise.

+ */

+BOOL

+ActivateFocusInGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)

+{

+    BOOL rc = FALSE;

+    DeviceEvent event;

+

+    if (dev->deviceGrab.grab &&

+        dev->deviceGrab.fromPassiveGrab &&

+        dev->deviceGrab.grab->type == XI_Enter)

+    {

+        if (dev->deviceGrab.grab->window == win ||

+            IsParent(dev->deviceGrab.grab->window, win))

+            return FALSE;

+        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);

+        (*dev->deviceGrab.DeactivateGrab)(dev);

+    }

+

+    if (win == NoneWin || win == PointerRootWin)

+        return FALSE;

+

+    memset(&event, 0, sizeof(DeviceEvent));

+    event.header = ET_Internal;

+    event.type = ET_FocusIn;

+    event.length = sizeof(DeviceEvent);

+    event.time = GetTimeInMillis();

+    event.deviceid = dev->id;

+    event.sourceid = dev->id;

+    event.detail.button = 0;

+    rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);

+    if (rc)

+        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);

+    return rc;

+}

+

+/**

+ * Ungrab a currently Enter grabbed device and grab the device for the given

+ * window.

+ *

+ * @returns TRUE if the device has been grabbed, or FALSE otherwise.

+ */

+static BOOL

+ActivateEnterGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)

+{

+    BOOL rc = FALSE;

+    DeviceEvent event;

+

+    if (dev->deviceGrab.grab &&

+        dev->deviceGrab.fromPassiveGrab &&

+        dev->deviceGrab.grab->type == XI_Enter)

+    {

+        if (dev->deviceGrab.grab->window == win ||

+            IsParent(dev->deviceGrab.grab->window, win))

+            return FALSE;

+        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);

+        (*dev->deviceGrab.DeactivateGrab)(dev);

+    }

+

+    memset(&event, 0, sizeof(DeviceEvent));

+    event.header = ET_Internal;

+    event.type = ET_Enter;

+    event.length = sizeof(DeviceEvent);

+    event.time = GetTimeInMillis();

+    event.deviceid = dev->id;

+    event.sourceid = dev->id;

+    event.detail.button = 0;

+    rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);

+    if (rc)

+        DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveGrab);

+

+    return rc;

+}

+

+/**

+ * Update the sprite coordinates based on the event. Update the cursor

+ * position, then update the event with the new coordinates that may have been

+ * changed. If the window underneath the sprite has changed, change to new

+ * cursor and send enter/leave events.

+ *

+ * CheckMotion() will not do anything and return FALSE if the event is not a

+ * pointer event.

+ *

+ * @return TRUE if the sprite has moved or FALSE otherwise.

+ */

+Bool

+CheckMotion(DeviceEvent *ev, DeviceIntPtr pDev)

+{

+    WindowPtr prevSpriteWin, newSpriteWin;

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    CHECKEVENT(ev);

+

+    prevSpriteWin = pSprite->win;

+

+    if (ev && !syncEvents.playingEvents)

+    {

+        /* GetPointerEvents() guarantees that pointer events have the correct

+           rootX/Y set already. */

+        switch (ev->type)

+        {

+            case ET_ButtonPress:

+            case ET_ButtonRelease:

+            case ET_Motion:

+                break;

+            default:

+                /* all other events return FALSE */

+                return FALSE;

+        }

+

+

+#ifdef PANORAMIX

+        if (!noPanoramiXExtension)

+        {

+            /* Motion events entering DIX get translated to Screen 0

+               coordinates.  Replayed events have already been

+               translated since they've entered DIX before */

+            ev->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -

+                                       panoramiXdataPtr[0].x;

+            ev->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -

+                                       panoramiXdataPtr[0].y;

+        } else

+#endif

+        {

+            if (pSprite->hot.pScreen != pSprite->hotPhys.pScreen)

+            {

+                pSprite->hot.pScreen = pSprite->hotPhys.pScreen;

+                RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];

+            }

+        }

+

+        pSprite->hot.x = ev->root_x;

+        pSprite->hot.y = ev->root_y;

+        if (pSprite->hot.x < pSprite->physLimits.x1)

+            pSprite->hot.x = pSprite->physLimits.x1;

+        else if (pSprite->hot.x >= pSprite->physLimits.x2)

+            pSprite->hot.x = pSprite->physLimits.x2 - 1;

+        if (pSprite->hot.y < pSprite->physLimits.y1)

+            pSprite->hot.y = pSprite->physLimits.y1;

+        else if (pSprite->hot.y >= pSprite->physLimits.y2)

+            pSprite->hot.y = pSprite->physLimits.y2 - 1;

+	if (pSprite->hotShape)

+	    ConfineToShape(pDev, pSprite->hotShape, &pSprite->hot.x, &pSprite->hot.y);

+	pSprite->hotPhys = pSprite->hot;

+

+	if ((pSprite->hotPhys.x != ev->root_x) ||

+	    (pSprite->hotPhys.y != ev->root_y))

+	{

+#ifdef PANORAMIX

+            if (!noPanoramiXExtension)

+            {

+                XineramaSetCursorPosition(

+                        pDev, pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);

+            } else

+#endif

+            {

+                (*pSprite->hotPhys.pScreen->SetCursorPosition)(

+                        pDev, pSprite->hotPhys.pScreen,

+                        pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);

+            }

+	}

+

+	ev->root_x = pSprite->hot.x;

+	ev->root_y = pSprite->hot.y;

+    }

+

+    newSpriteWin = XYToWindow(pDev, pSprite->hot.x, pSprite->hot.y);

+

+    if (newSpriteWin != prevSpriteWin)

+    {

+        int sourceid;

+        if (!ev) {

+            UpdateCurrentTimeIf();

+            sourceid = pDev->id; /* when from WindowsRestructured */

+        } else

+            sourceid = ev->sourceid;

+

+	if (prevSpriteWin != NullWindow) {

+            if (!ActivateEnterGrab(pDev, prevSpriteWin, newSpriteWin))

+                DoEnterLeaveEvents(pDev, sourceid, prevSpriteWin,

+                                   newSpriteWin, NotifyNormal);

+        }

+        /* set pSprite->win after ActivateEnterGrab, otherwise

+           sprite window == grab_window and no enter/leave events are

+           sent. */

+        pSprite->win = newSpriteWin;

+        PostNewCursor(pDev);

+        return FALSE;

+    }

+    return TRUE;

+}

+

+/**

+ * Windows have restructured, we need to update the sprite position and the

+ * sprite's cursor.

+ */

+void

+WindowsRestructured(void)

+{

+    DeviceIntPtr pDev = inputInfo.devices;

+    while(pDev)

+    {

+        if (IsMaster(pDev) || !pDev->u.master)

+            CheckMotion(NULL, pDev);

+        pDev = pDev->next;

+    }

+}

+

+#ifdef PANORAMIX

+/* This was added to support reconfiguration under Xdmx.  The problem is

+ * that if the 0th screen (i.e., WindowTable[0]) is moved to an origin

+ * other than 0,0, the information in the private sprite structure must

+ * be updated accordingly, or XYToWindow (and other routines) will not

+ * compute correctly. */

+void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)

+{

+    GrabPtr   grab;

+    DeviceIntPtr pDev;

+    SpritePtr pSprite;

+

+    if (noPanoramiXExtension) return;

+

+    pDev = inputInfo.devices;

+    while(pDev)

+    {

+        if (DevHasCursor(pDev))

+        {

+            pSprite = pDev->spriteInfo->sprite;

+            pSprite->hot.x        -= xoff;

+            pSprite->hot.y        -= yoff;

+

+            pSprite->hotPhys.x    -= xoff;

+            pSprite->hotPhys.y    -= yoff;

+

+            pSprite->hotLimits.x1 -= xoff;

+            pSprite->hotLimits.y1 -= yoff;

+            pSprite->hotLimits.x2 -= xoff;

+            pSprite->hotLimits.y2 -= yoff;

+

+            if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg1))

+                REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1,    xoff, yoff);

+            if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg2))

+                REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2,    xoff, yoff);

+

+            /* FIXME: if we call ConfineCursorToWindow, must we do anything else? */

+            if ((grab = pDev->deviceGrab.grab) && grab->confineTo) {

+                if (grab->confineTo->drawable.pScreen

+                        != pSprite->hotPhys.pScreen)

+                    pSprite->hotPhys.x = pSprite->hotPhys.y = 0;

+                ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);

+            } else

+                ConfineCursorToWindow(

+                        pDev,

+                        WindowTable[pSprite->hotPhys.pScreen->myNum],

+                        TRUE, FALSE);

+

+        }

+        pDev = pDev->next;

+    }

+}

+#endif

+

+/**

+ * Initialize a sprite for the given device and set it to some sane values. If

+ * the device already has a sprite alloc'd, don't realloc but just reset to

+ * default values.

+ * If a window is supplied, the sprite will be initialized with the window's

+ * cursor and positioned in the center of the window's screen. The root window

+ * is a good choice to pass in here.

+ *

+ * It's a good idea to call it only for pointer devices, unless you have a

+ * really talented keyboard.

+ *

+ * @param pDev The device to initialize.

+ * @param pWin The window where to generate the sprite in.

+ *

+ */

+void

+InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin)

+{

+    SpritePtr pSprite;

+    ScreenPtr pScreen;

+    CursorPtr pCursor;

+

+    if (!pDev->spriteInfo->sprite)

+    {

+        DeviceIntPtr it;

+

+        pDev->spriteInfo->sprite = (SpritePtr)calloc(1, sizeof(SpriteRec));

+        if (!pDev->spriteInfo->sprite)

+            FatalError("InitializeSprite: failed to allocate sprite struct");

+

+        /* We may have paired another device with this device before our

+         * device had a actual sprite. We need to check for this and reset the

+         * sprite field for all paired devices.

+         *

+         * The VCK is always paired with the VCP before the VCP has a sprite.

+         */

+        for (it = inputInfo.devices; it; it = it->next)

+        {

+            if (it->spriteInfo->paired == pDev)

+                it->spriteInfo->sprite = pDev->spriteInfo->sprite;

+        }

+        if (inputInfo.keyboard->spriteInfo->paired == pDev)

+            inputInfo.keyboard->spriteInfo->sprite = pDev->spriteInfo->sprite;

+    }

+

+    pSprite = pDev->spriteInfo->sprite;

+    pDev->spriteInfo->spriteOwner = TRUE;

+

+    pScreen = (pWin) ? pWin->drawable.pScreen : (ScreenPtr)NULL;

+    pSprite->hot.pScreen = pScreen;

+    pSprite->hotPhys.pScreen = pScreen;

+    if (pScreen)

+    {

+        pSprite->hotPhys.x = pScreen->width / 2;

+        pSprite->hotPhys.y = pScreen->height / 2;

+        pSprite->hotLimits.x2 = pScreen->width;

+        pSprite->hotLimits.y2 = pScreen->height;

+    }

+

+    pSprite->hot = pSprite->hotPhys;

+    pSprite->win = pWin;

+

+    if (pWin)

+    {

+	pCursor = wCursor(pWin);

+	pSprite->spriteTrace = (WindowPtr *)calloc(1, 32*sizeof(WindowPtr));

+	if (!pSprite->spriteTrace)

+	    FatalError("Failed to allocate spriteTrace");

+	pSprite->spriteTraceSize = 32;

+

+	RootWindow(pDev) = pWin;

+	pSprite->spriteTraceGood = 1;

+

+	pSprite->pEnqueueScreen = pScreen;

+	pSprite->pDequeueScreen = pSprite->pEnqueueScreen;

+

+    } else {

+        pCursor = NullCursor;

+	pSprite->spriteTrace = NULL;

+	pSprite->spriteTraceSize = 0;

+	pSprite->spriteTraceGood = 0;

+	pSprite->pEnqueueScreen = screenInfo.screens[0];

+	pSprite->pDequeueScreen = pSprite->pEnqueueScreen;

+    }

+    if (pCursor)

+	pCursor->refcnt++;

+    if (pSprite->current)

+	FreeCursor(pSprite->current, None);

+    pSprite->current = pCursor;

+

+    if (pScreen)

+    {

+        (*pScreen->RealizeCursor) ( pDev, pScreen, pSprite->current);

+        (*pScreen->CursorLimits) ( pDev, pScreen, pSprite->current,

+                                   &pSprite->hotLimits, &pSprite->physLimits);

+        pSprite->confined = FALSE;

+

+        (*pScreen->ConstrainCursor) (pDev, pScreen,

+                                     &pSprite->physLimits);

+        (*pScreen->SetCursorPosition) (pDev, pScreen, pSprite->hot.x,

+                                       pSprite->hot.y,

+                                       FALSE);

+        (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);

+    }

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension) {

+        pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;

+        pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;

+        pSprite->hotLimits.x2 = PanoramiXPixWidth  - panoramiXdataPtr[0].x;

+        pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;

+        pSprite->physLimits = pSprite->hotLimits;

+        pSprite->confineWin = NullWindow;

+        pSprite->hotShape = NullRegion;

+        pSprite->screen = pScreen;

+        /* gotta UNINIT these someplace */

+        REGION_NULL(pScreen, &pSprite->Reg1);

+        REGION_NULL(pScreen, &pSprite->Reg2);

+    }

+#endif

+}

+

+/**

+ * Update the mouse sprite info when the server switches from a pScreen to another.

+ * Otherwise, the pScreen of the mouse sprite is never updated when we switch

+ * from a pScreen to another. Never updating the pScreen of the mouse sprite

+ * implies that windows that are in pScreen whose pScreen->myNum >0 will never

+ * get pointer events. This is  because in CheckMotion(), sprite.hotPhys.pScreen

+ * always points to the first pScreen it has been set by

+ * DefineInitialRootWindow().

+ *

+ * Calling this function is useful for use cases where the server

+ * has more than one pScreen.

+ * This function is similar to DefineInitialRootWindow() but it does not

+ * reset the mouse pointer position.

+ * @param win must be the new pScreen we are switching to.

+ */

+void

+UpdateSpriteForScreen(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    SpritePtr pSprite = NULL;

+    WindowPtr win = NULL;

+    CursorPtr pCursor;

+    if (!pScreen)

+        return ;

+

+    if (!pDev->spriteInfo->sprite)

+        return;

+

+    pSprite = pDev->spriteInfo->sprite;

+

+    win = WindowTable[pScreen->myNum];

+

+    pSprite->hotPhys.pScreen = pScreen;

+    pSprite->hot = pSprite->hotPhys;

+    pSprite->hotLimits.x2 = pScreen->width;

+    pSprite->hotLimits.y2 = pScreen->height;

+    pSprite->win = win;

+    pCursor = wCursor(win);

+    if (pCursor)

+	pCursor->refcnt++;

+    if (pSprite->current)

+	FreeCursor(pSprite->current, 0);

+    pSprite->current = pCursor;

+    pSprite->spriteTraceGood = 1;

+    pSprite->spriteTrace[0] = win;

+    (*pScreen->CursorLimits) (pDev,

+                              pScreen,

+                              pSprite->current,

+                              &pSprite->hotLimits,

+                              &pSprite->physLimits);

+    pSprite->confined = FALSE;

+    (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits);

+    (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension) {

+        pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;

+        pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;

+        pSprite->hotLimits.x2 = PanoramiXPixWidth  - panoramiXdataPtr[0].x;

+        pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;

+        pSprite->physLimits = pSprite->hotLimits;

+        pSprite->screen = pScreen;

+    }

+#endif

+}

+

+/*

+ * This does not take any shortcuts, and even ignores its argument, since

+ * it does not happen very often, and one has to walk up the tree since

+ * this might be a newly instantiated cursor for an intermediate window

+ * between the one the pointer is in and the one that the last cursor was

+ * instantiated from.

+ */

+void

+WindowHasNewCursor(WindowPtr pWin)

+{

+    DeviceIntPtr pDev;

+

+    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

+        if (DevHasCursor(pDev))

+            PostNewCursor(pDev);

+}

+

+void

+NewCurrentScreen(DeviceIntPtr pDev, ScreenPtr newScreen, int x, int y)

+{

+    SpritePtr pSprite = pDev->spriteInfo->sprite;

+

+    pSprite->hotPhys.x = x;

+    pSprite->hotPhys.y = y;

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension) {

+	pSprite->hotPhys.x += panoramiXdataPtr[newScreen->myNum].x -

+			    panoramiXdataPtr[0].x;

+	pSprite->hotPhys.y += panoramiXdataPtr[newScreen->myNum].y -

+			    panoramiXdataPtr[0].y;

+	if (newScreen != pSprite->screen) {

+	    pSprite->screen = newScreen;

+	    /* Make sure we tell the DDX to update its copy of the screen */

+	    if(pSprite->confineWin)

+		XineramaConfineCursorToWindow(pDev,

+                        pSprite->confineWin, TRUE);

+	    else

+		XineramaConfineCursorToWindow(pDev, WindowTable[0], TRUE);

+	    /* if the pointer wasn't confined, the DDX won't get

+	       told of the pointer warp so we reposition it here */

+	    if(!syncEvents.playingEvents)

+		(*pSprite->screen->SetCursorPosition)(

+                                                      pDev,

+                                                      pSprite->screen,

+		    pSprite->hotPhys.x + panoramiXdataPtr[0].x -

+			panoramiXdataPtr[pSprite->screen->myNum].x,

+		    pSprite->hotPhys.y + panoramiXdataPtr[0].y -

+			panoramiXdataPtr[pSprite->screen->myNum].y, FALSE);

+	}

+    } else

+#endif

+    if (newScreen != pSprite->hotPhys.pScreen)

+	ConfineCursorToWindow(pDev, WindowTable[newScreen->myNum],

+                TRUE, FALSE);

+}

+

+#ifdef PANORAMIX

+

+static Bool

+XineramaPointInWindowIsVisible(

+    WindowPtr pWin,

+    int x,

+    int y

+)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    BoxRec box;

+    int i, xoff, yoff;

+

+    if (!pWin->realized) return FALSE;

+

+    if (POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box))

+        return TRUE;

+

+    if(!XineramaSetWindowPntrs(inputInfo.pointer, pWin)) return FALSE;

+

+    xoff = x + panoramiXdataPtr[0].x;

+    yoff = y + panoramiXdataPtr[0].y;

+

+    for(i = 1; i < PanoramiXNumScreens; i++) {

+	pWin = inputInfo.pointer->spriteInfo->sprite->windows[i];

+	pScreen = pWin->drawable.pScreen;

+	x = xoff - panoramiXdataPtr[i].x;

+	y = yoff - panoramiXdataPtr[i].y;

+

+	if(POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box)

+	   && (!wInputShape(pWin) ||

+	       POINT_IN_REGION(pWin->drawable.pScreen,

+			       wInputShape(pWin),

+			       x - pWin->drawable.x,

+			       y - pWin->drawable.y, &box)))

+            return TRUE;

+

+    }

+

+    return FALSE;

+}

+

+static int

+XineramaWarpPointer(ClientPtr client)

+{

+    WindowPtr	dest = NULL;

+    int		x, y, rc;

+    SpritePtr   pSprite = PickPointer(client)->spriteInfo->sprite;

+

+    REQUEST(xWarpPointerReq);

+

+

+    if (stuff->dstWid != None) {

+	rc = dixLookupWindow(&dest, stuff->dstWid, client, DixReadAccess);

+	if (rc != Success)

+	    return rc;

+    }

+    x = pSprite->hotPhys.x;

+    y = pSprite->hotPhys.y;

+

+    if (stuff->srcWid != None)

+    {

+	int     winX, winY;

+	XID	winID = stuff->srcWid;

+        WindowPtr source;

+

+	rc = dixLookupWindow(&source, winID, client, DixReadAccess);

+	if (rc != Success)

+	    return rc;

+

+	winX = source->drawable.x;

+	winY = source->drawable.y;

+	if(source == WindowTable[0]) {

+	    winX -= panoramiXdataPtr[0].x;

+	    winY -= panoramiXdataPtr[0].y;

+	}

+	if (x < winX + stuff->srcX ||

+	    y < winY + stuff->srcY ||

+	    (stuff->srcWidth != 0 &&

+	     winX + stuff->srcX + (int)stuff->srcWidth < x) ||

+	    (stuff->srcHeight != 0 &&

+	     winY + stuff->srcY + (int)stuff->srcHeight < y) ||

+	    !XineramaPointInWindowIsVisible(source, x, y))

+	    return Success;

+    }

+    if (dest) {

+	x = dest->drawable.x;

+	y = dest->drawable.y;

+	if(dest == WindowTable[0]) {

+	    x -= panoramiXdataPtr[0].x;

+	    y -= panoramiXdataPtr[0].y;

+	}

+    }

+

+    x += stuff->dstX;

+    y += stuff->dstY;

+

+    if (x < pSprite->physLimits.x1)

+	x = pSprite->physLimits.x1;

+    else if (x >= pSprite->physLimits.x2)

+	x = pSprite->physLimits.x2 - 1;

+    if (y < pSprite->physLimits.y1)

+	y = pSprite->physLimits.y1;

+    else if (y >= pSprite->physLimits.y2)

+	y = pSprite->physLimits.y2 - 1;

+    if (pSprite->hotShape)

+	ConfineToShape(PickPointer(client), pSprite->hotShape, &x, &y);

+

+    XineramaSetCursorPosition(PickPointer(client), x, y, TRUE);

+

+    return Success;

+}

+

+#endif

+

+

+/**

+ * Server-side protocol handling for WarpPointer request.

+ * Warps the cursor position to the coordinates given in the request.

+ */

+int

+ProcWarpPointer(ClientPtr client)

+{

+    WindowPtr	dest = NULL;

+    int		x, y, rc;

+    ScreenPtr	newScreen;

+    DeviceIntPtr dev, tmp;

+    SpritePtr   pSprite;

+

+    REQUEST(xWarpPointerReq);

+    REQUEST_SIZE_MATCH(xWarpPointerReq);

+

+    dev = PickPointer(client);

+

+    for (tmp = inputInfo.devices; tmp; tmp = tmp->next) {

+        if ((tmp == dev) || (!IsMaster(tmp) && tmp->u.master == dev)) {

+	    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixWriteAccess);

+	    if (rc != Success)

+		return rc;

+	}

+    }

+

+    if (dev->u.lastSlave)

+        dev = dev->u.lastSlave;

+    pSprite = dev->spriteInfo->sprite;

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension)

+	return XineramaWarpPointer(client);

+#endif

+

+    if (stuff->dstWid != None) {

+	rc = dixLookupWindow(&dest, stuff->dstWid, client, DixGetAttrAccess);

+	if (rc != Success)

+	    return rc;

+    }

+    x = pSprite->hotPhys.x;

+    y = pSprite->hotPhys.y;

+

+    if (stuff->srcWid != None)

+    {

+	int     winX, winY;

+	XID	winID = stuff->srcWid;

+        WindowPtr source;

+

+	rc = dixLookupWindow(&source, winID, client, DixGetAttrAccess);

+	if (rc != Success)

+	    return rc;

+

+	winX = source->drawable.x;

+	winY = source->drawable.y;

+	if (source->drawable.pScreen != pSprite->hotPhys.pScreen ||

+	    x < winX + stuff->srcX ||

+	    y < winY + stuff->srcY ||

+	    (stuff->srcWidth != 0 &&

+	     winX + stuff->srcX + (int)stuff->srcWidth < x) ||

+	    (stuff->srcHeight != 0 &&

+	     winY + stuff->srcY + (int)stuff->srcHeight < y) ||

+	    !PointInWindowIsVisible(source, x, y))

+	    return Success;

+    }

+    if (dest)

+    {

+	x = dest->drawable.x;

+	y = dest->drawable.y;

+	newScreen = dest->drawable.pScreen;

+    } else

+	newScreen = pSprite->hotPhys.pScreen;

+

+    x += stuff->dstX;

+    y += stuff->dstY;

+

+    if (x < 0)

+	x = 0;

+    else if (x >= newScreen->width)

+	x = newScreen->width - 1;

+    if (y < 0)

+	y = 0;

+    else if (y >= newScreen->height)

+	y = newScreen->height - 1;

+

+    if (newScreen == pSprite->hotPhys.pScreen)

+    {

+	if (x < pSprite->physLimits.x1)

+	    x = pSprite->physLimits.x1;

+	else if (x >= pSprite->physLimits.x2)

+	    x = pSprite->physLimits.x2 - 1;

+	if (y < pSprite->physLimits.y1)

+	    y = pSprite->physLimits.y1;

+	else if (y >= pSprite->physLimits.y2)

+	    y = pSprite->physLimits.y2 - 1;

+	if (pSprite->hotShape)

+	    ConfineToShape(dev, pSprite->hotShape, &x, &y);

+        (*newScreen->SetCursorPosition)(dev, newScreen, x, y, TRUE);

+    }

+    else if (!PointerConfinedToScreen(dev))

+    {

+	NewCurrentScreen(dev, newScreen, x, y);

+    }

+    return Success;

+}

+

+static Bool

+BorderSizeNotEmpty(DeviceIntPtr pDev, WindowPtr pWin)

+{

+     if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->hotPhys.pScreen, &pWin->borderSize))

+	return TRUE;

+

+#ifdef PANORAMIX

+     if(!noPanoramiXExtension && XineramaSetWindowPntrs(pDev, pWin)) {

+	int i;

+

+	for(i = 1; i < PanoramiXNumScreens; i++) {

+	    if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->screen,

+                        &pDev->spriteInfo->sprite->windows[i]->borderSize))

+		return TRUE;

+	}

+     }

+#endif

+     return FALSE;

+}

+

+/**

+ * "CheckPassiveGrabsOnWindow" checks to see if the event passed in causes a

+ * passive grab set on the window to be activated.

+ * If a passive grab is activated, the event will be delivered to the client.

+ *

+ * @param pWin The window that may be subject to a passive grab.

+ * @param device Device that caused the event.

+ * @param event The current device event.

+ * @param checkCore Check for core grabs too.

+ */

+

+static Bool

+CheckPassiveGrabsOnWindow(

+    WindowPtr pWin,

+    DeviceIntPtr device,

+    DeviceEvent *event,

+    BOOL checkCore)

+{

+    GrabPtr grab = wPassiveGrabs(pWin);

+    GrabRec tempGrab;

+    GrabInfoPtr grabinfo;

+#define CORE_MATCH      0x1

+#define XI_MATCH        0x2

+#define XI2_MATCH        0x4

+    int match = 0;

+

+    if (device->deviceGrab.grab)

+        return FALSE;

+

+    if (!grab)

+	return FALSE;

+    /* Fill out the grab details, but leave the type for later before

+     * comparing */

+    tempGrab.window = pWin;

+    tempGrab.device = device;

+    tempGrab.detail.exact = event->detail.key;

+    tempGrab.detail.pMask = NULL;

+    tempGrab.modifiersDetail.pMask = NULL;

+    tempGrab.next = NULL;

+    for (; grab; grab = grab->next)

+    {

+	DeviceIntPtr	gdev;

+	XkbSrvInfoPtr	xkbi = NULL;

+	Mask		mask = 0;

+

+	gdev= grab->modifierDevice;

+        if (grab->grabtype == GRABTYPE_CORE)

+        {

+            if (IsPointerDevice(device))

+                gdev = GetPairedDevice(device);

+            else

+                gdev = device;

+        } else if (grab->grabtype == GRABTYPE_XI2)

+        {

+            /* if the device is an attached slave device, gdev must be the

+             * attached master keyboard. Since the slave may have been

+             * reattached after the grab, the modifier device may not be the

+             * same. */

+            if (!IsMaster(grab->device) && device->u.master)

+                gdev = GetMaster(device, MASTER_KEYBOARD);

+        }

+

+

+        if (gdev && gdev->key)

+            xkbi= gdev->key->xkbInfo;

+	tempGrab.modifierDevice = grab->modifierDevice;

+        tempGrab.modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0;

+

+        /* Check for XI2 and XI grabs first */

+        tempGrab.type = GetXI2Type((InternalEvent*)event);

+        tempGrab.grabtype = GRABTYPE_XI2;

+        if (GrabMatchesSecond(&tempGrab, grab, FALSE))

+            match = XI2_MATCH;

+

+        tempGrab.detail.exact = event->detail.key;

+        if (!match)

+        {

+            tempGrab.type = GetXIType((InternalEvent*)event);

+            tempGrab.grabtype = GRABTYPE_XI;

+            if (GrabMatchesSecond(&tempGrab, grab, FALSE))

+                match = XI_MATCH;

+        }

+

+        /* Check for a core grab (ignore the device when comparing) */

+        if (!match && checkCore)

+        {

+            tempGrab.grabtype = GRABTYPE_CORE;

+            if ((tempGrab.type = GetCoreType((InternalEvent*)event)) &&

+                (GrabMatchesSecond(&tempGrab, grab, TRUE)))

+                match = CORE_MATCH;

+        }

+

+        if (match && (!grab->confineTo ||

+	     (grab->confineTo->realized &&

+				BorderSizeNotEmpty(device, grab->confineTo))))

+	{

+            int rc, count = 0;

+            xEvent *xE = NULL;

+            xEvent core;

+

+            event->corestate &= 0x1f00;

+            event->corestate |= tempGrab.modifiersDetail.exact & (~0x1f00);

+            grabinfo = &device->deviceGrab;

+            /* In some cases a passive core grab may exist, but the client

+             * already has a core grab on some other device. In this case we

+             * must not get the grab, otherwise we may never ungrab the

+             * device.

+             */

+

+            if (grab->grabtype == GRABTYPE_CORE)

+            {

+                DeviceIntPtr other;

+                BOOL interfering = FALSE;

+

+                /* A passive grab may have been created for a different device

+                   than it is assigned to at this point in time.

+                   Update the grab's device and modifier device to reflect the

+                   current state.

+                   Since XGrabDeviceButton requires to specify the

+                   modifierDevice explicitly, we don't override this choice.

+                   */

+                if (tempGrab.type < GenericEvent)

+                {

+                    grab->device = device;

+                    grab->modifierDevice = GetPairedDevice(device);

+                }

+

+                for (other = inputInfo.devices; other; other = other->next)

+                {

+                    GrabPtr othergrab = other->deviceGrab.grab;

+                    if (othergrab && othergrab->grabtype == GRABTYPE_CORE &&

+                        SameClient(grab, rClient(othergrab)) &&

+                        ((IsPointerDevice(grab->device) &&

+                         IsPointerDevice(othergrab->device)) ||

+                         (IsKeyboardDevice(grab->device) &&

+                          IsKeyboardDevice(othergrab->device))))

+                    {

+                        interfering = TRUE;

+                        break;

+                    }

+                }

+                if (interfering)

+                    continue;

+            }

+

+

+            if (match & CORE_MATCH)

+            {

+                rc = EventToCore((InternalEvent*)event, &core);

+                if (rc != Success)

+                {

+                    if (rc != BadMatch)

+                        ErrorF("[dix] %s: core conversion failed in CPGFW "

+                                "(%d, %d).\n", device->name, event->type, rc);

+                    continue;

+                }

+                xE = &core;

+                count = 1;

+                mask = grab->eventMask;

+                if (grab->ownerEvents)

+                    mask |= pWin->eventMask;

+            } else if (match & XI2_MATCH)

+            {

+                rc = EventToXI2((InternalEvent*)event, &xE);

+                if (rc != Success)

+                {

+                    if (rc != BadMatch)

+                        ErrorF("[dix] %s: XI2 conversion failed in CPGFW "

+                                "(%d, %d).\n", device->name, event->type, rc);

+                    continue;

+                }

+                count = 1;

+

+                /* FIXME: EventToXI2 returns NULL for enter events, so

+                 * dereferencing the event is bad. Internal event types are

+                 * aligned with core events, so the else clause is valid.

+                 * long-term we should use internal events for enter/focus

+                 * as well */

+                if (xE)

+                    mask = grab->xi2mask[device->id][((xGenericEvent*)xE)->evtype/8];

+                else if (event->type == XI_Enter || event->type == XI_FocusIn)

+                    mask = grab->xi2mask[device->id][event->type/8];

+

+                if (grab->ownerEvents && wOtherInputMasks(grab->window))

+                {

+                    InputClientsPtr icp =

+                        wOtherInputMasks(grab->window)->inputClients;

+

+                    while(icp)

+                    {

+                        if (rClient(icp) == rClient(grab))

+                        {

+                            int evtype = (xE) ? ((xGenericEvent*)xE)->evtype : event->type;

+                            mask |= icp->xi2mask[device->id][evtype/8];

+                            break;

+                        }

+

+                        icp = icp->next;

+                    }

+                }

+            } else

+            {

+                rc = EventToXI((InternalEvent*)event, &xE, &count);

+                if (rc != Success)

+                {

+                    if (rc != BadMatch)

+                        ErrorF("[dix] %s: XI conversion failed in CPGFW "

+                                "(%d, %d).\n", device->name, event->type, rc);

+                    continue;

+                }

+                mask = grab->eventMask;

+                if (grab->ownerEvents && wOtherInputMasks(grab->window))

+                {

+                    InputClientsPtr icp =

+                        wOtherInputMasks(grab->window)->inputClients;

+

+                    while(icp)

+                    {

+                        if (rClient(icp) == rClient(grab))

+                        {

+                            mask |= icp->mask[device->id];

+                            break;

+                        }

+

+                        icp = icp->next;

+                    }

+                }

+            }

+

+	    (*grabinfo->ActivateGrab)(device, grab, currentTime, TRUE);

+

+            if (xE)

+            {

+                FixUpEventFromWindow(device, xE, grab->window, None, TRUE);

+

+                TryClientEvents(rClient(grab), device, xE, count, mask,

+                                       GetEventFilter(device, xE), grab);

+            }

+

+	    if (grabinfo->sync.state == FROZEN_NO_EVENT)

+	    {

+                if (!grabinfo->sync.event)

+                    grabinfo->sync.event = calloc(1, sizeof(InternalEvent));

+                *grabinfo->sync.event = *event;

+		grabinfo->sync.state = FROZEN_WITH_EVENT;

+            }

+

+            if (match & (XI_MATCH | XI2_MATCH))

+                free(xE); /* on core match xE == &core */

+	    return TRUE;

+	}

+    }

+    return FALSE;

+#undef CORE_MATCH

+#undef XI_MATCH

+#undef XI2_MATCH

+}

+

+/**

+ * CheckDeviceGrabs handles both keyboard and pointer events that may cause

+ * a passive grab to be activated.

+ *

+ * If the event is a keyboard event, the ancestors of the focus window are

+ * traced down and tried to see if they have any passive grabs to be

+ * activated.  If the focus window itself is reached and it's descendants

+ * contain the pointer, the ancestors of the window that the pointer is in

+ * are then traced down starting at the focus window, otherwise no grabs are

+ * activated.

+ * If the event is a pointer event, the ancestors of the window that the

+ * pointer is in are traced down starting at the root until CheckPassiveGrabs

+ * causes a passive grab to activate or all the windows are

+ * tried. PRH

+ *

+ * If a grab is activated, the event has been sent to the client already!

+ *

+ * The event we pass in must always be an XI event. From this, we then emulate

+ * the core event and then check for grabs.

+ *

+ * @param device The device that caused the event.

+ * @param xE The event to handle (Device{Button|Key}Press).

+ * @param count Number of events in list.

+ * @return TRUE if a grab has been activated or false otherwise.

+*/

+

+Bool

+CheckDeviceGrabs(DeviceIntPtr device, DeviceEvent *event, int checkFirst)

+{

+    int i;

+    WindowPtr pWin = NULL;

+    FocusClassPtr focus = IsPointerEvent((InternalEvent*)event) ? NULL : device->focus;

+    BOOL sendCore = (IsMaster(device) && device->coreEvents);

+

+    if (event->type != ET_ButtonPress &&

+        event->type != ET_KeyPress)

+        return FALSE;

+

+    if (event->type == ET_ButtonPress

+        && (device->button->buttonsDown != 1))

+	return FALSE;

+

+    i = checkFirst;

+

+    if (focus)

+    {

+	for (; i < focus->traceGood; i++)

+	{

+	    pWin = focus->trace[i];

+	    if (pWin->optional &&

+	        CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))

+		return TRUE;

+	}

+

+	if ((focus->win == NoneWin) ||

+	    (i >= device->spriteInfo->sprite->spriteTraceGood) ||

+	    ((i > checkFirst) &&

+             (pWin != device->spriteInfo->sprite->spriteTrace[i-1])))

+	    return FALSE;

+    }

+

+    for (; i < device->spriteInfo->sprite->spriteTraceGood; i++)

+    {

+	pWin = device->spriteInfo->sprite->spriteTrace[i];

+	if (pWin->optional &&

+	    CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))

+	    return TRUE;

+    }

+

+    return FALSE;

+}

+

+/**

+ * Called for keyboard events to deliver event to whatever client owns the

+ * focus.

+ *

+ * The event is delivered to the keyboard's focus window, the root window or

+ * to the window owning the input focus.

+ *

+ * @param keybd The keyboard originating the event.

+ * @param event The event, not yet in wire format.

+ * @param window Window underneath the sprite.

+ */

+void

+DeliverFocusedEvent(DeviceIntPtr keybd, InternalEvent *event, WindowPtr window)

+{

+    DeviceIntPtr ptr;

+    WindowPtr focus = keybd->focus->win;

+    BOOL sendCore = (IsMaster(keybd) && keybd->coreEvents);

+    xEvent core;

+    xEvent *xE = NULL, *xi2 = NULL;

+    int count, rc;

+    int deliveries = 0;

+

+    if (focus == FollowKeyboardWin)

+	focus = inputInfo.keyboard->focus->win;

+    if (!focus)

+	return;

+    if (focus == PointerRootWin)

+    {

+	DeliverDeviceEvents(window, event, NullGrab, NullWindow, keybd);

+	return;

+    }

+    if ((focus == window) || IsParent(focus, window))

+    {

+	if (DeliverDeviceEvents(window, event, NullGrab, focus, keybd))

+	    return;

+    }

+

+    /* just deliver it to the focus window */

+    ptr = GetPairedDevice(keybd);

+

+

+    rc = EventToXI2(event, &xi2);

+    if (rc == Success)

+    {

+        /* XXX: XACE */

+        int filter = GetEventFilter(keybd, xi2);

+        FixUpEventFromWindow(ptr, xi2, focus, None, FALSE);

+        deliveries = DeliverEventsToWindow(keybd, focus, xi2, 1,

+                                           filter, NullGrab);

+        if (deliveries > 0)

+            goto unwind;

+    } else if (rc != BadMatch)

+        ErrorF("[dix] %s: XI2 conversion failed in DFE (%d, %d). Skipping delivery.\n",

+               keybd->name, event->any.type, rc);

+

+    rc = EventToXI(event, &xE, &count);

+    if (rc == Success &&

+        XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, xE, count) == Success)

+    {

+        FixUpEventFromWindow(ptr, xE, focus, None, FALSE);

+        deliveries = DeliverEventsToWindow(keybd, focus, xE, count,

+                GetEventFilter(keybd, xE),

+                NullGrab);

+

+        if (deliveries > 0)

+            goto unwind;

+    } else if (rc != BadMatch)

+        ErrorF("[dix] %s: XI conversion failed in DFE (%d, %d). Skipping delivery.\n",

+               keybd->name, event->any.type, rc);

+

+    if (sendCore)

+    {

+        rc = EventToCore(event, &core);

+        if (rc == Success) {

+            if (XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, &core, 1) == Success) {

+                FixUpEventFromWindow(keybd, &core, focus, None, FALSE);

+                deliveries = DeliverEventsToWindow(keybd, focus, &core, 1,

+                                                   GetEventFilter(keybd, &core),

+                                                   NullGrab);

+            }

+        } else if (rc != BadMatch)

+            ErrorF("[dix] %s: core conversion failed DFE (%d, %d). Skipping delivery.\n",

+                    keybd->name, event->any.type, rc);

+    }

+

+unwind:

+    if (xE)

+        free(xE);

+    if (xi2)

+        free(xi2);

+    return;

+}

+

+/**

+ * Deliver an event from a device that is currently grabbed. Uses

+ * DeliverDeviceEvents() for further delivery if a ownerEvents is set on the

+ * grab. If not, TryClientEvents() is used.

+ *

+ * @param deactivateGrab True if the device's grab should be deactivated.

+ */

+void

+DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,

+                    Bool deactivateGrab)

+{

+    GrabPtr grab;

+    GrabInfoPtr grabinfo;

+    int deliveries = 0;

+    DeviceIntPtr dev;

+    SpritePtr pSprite = thisDev->spriteInfo->sprite;

+    BOOL sendCore = FALSE;

+    int rc, count = 0;

+    xEvent *xi = NULL;

+    xEvent *xi2 = NULL;

+

+    grabinfo = &thisDev->deviceGrab;

+    grab = grabinfo->grab;

+

+    if (grab->ownerEvents)

+    {

+	WindowPtr focus;

+

+        /* Hack: Some pointer device have a focus class. So we need to check

+         * for the type of event, to see if we really want to deliver it to

+         * the focus window. For pointer events, the answer is no.

+         */

+        if (IsPointerEvent(event))

+            focus = PointerRootWin;

+        else if (thisDev->focus)

+	{

+	    focus = thisDev->focus->win;

+	    if (focus == FollowKeyboardWin)

+		focus = inputInfo.keyboard->focus->win;

+	}

+	else

+	    focus = PointerRootWin;

+	if (focus == PointerRootWin)

+	    deliveries = DeliverDeviceEvents(pSprite->win, event, grab,

+                                             NullWindow, thisDev);

+	else if (focus && (focus == pSprite->win ||

+                    IsParent(focus, pSprite->win)))

+	    deliveries = DeliverDeviceEvents(pSprite->win, event, grab, focus,

+					     thisDev);

+	else if (focus)

+	    deliveries = DeliverDeviceEvents(focus, event, grab, focus,

+					     thisDev);

+    }

+    if (!deliveries)

+    {

+        Mask mask;

+

+        /* XXX: In theory, we could pass the internal events through to

+         * everything and only convert just before hitting the wire. We can't

+         * do that yet, so DGE is the last stop for internal events. From here

+         * onwards, we deal with core/XI events.

+         */

+

+        mask = grab->eventMask;

+

+        sendCore = (IsMaster(thisDev) && thisDev->coreEvents);

+        /* try core event */

+        if (sendCore && grab->grabtype == GRABTYPE_CORE)

+        {

+            xEvent core;

+

+            rc = EventToCore(event, &core);

+            if (rc == Success)

+            {

+                FixUpEventFromWindow(thisDev, &core, grab->window,

+                        None, TRUE);

+                if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,

+                            grab->window, &core, 1) ||

+                        XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),

+                            grab->window, &core, 1))

+                    deliveries = 1; /* don't send, but pretend we did */

+                else if (!IsInterferingGrab(rClient(grab), thisDev, &core))

+                {

+                    deliveries = TryClientEvents(rClient(grab), thisDev,

+                            &core, 1, mask,

+                            GetEventFilter(thisDev, &core),

+                            grab);

+                }

+            } else if (rc != BadMatch)

+                ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");

+        }

+

+        if (!deliveries)

+        {

+            rc = EventToXI2(event, &xi2);

+            if (rc == Success)

+            {

+                int evtype = ((xGenericEvent*)xi2)->evtype;

+                mask = grab->xi2mask[XIAllDevices][evtype/8] |

+                    grab->xi2mask[XIAllMasterDevices][evtype/8] |

+                    grab->xi2mask[thisDev->id][evtype/8];

+                /* try XI2 event */

+                FixUpEventFromWindow(thisDev, xi2, grab->window, None, TRUE);

+                /* XXX: XACE */

+                deliveries = TryClientEvents(rClient(grab), thisDev, xi2, 1, mask,

+                        GetEventFilter(thisDev, xi2), grab);

+            } else if (rc != BadMatch)

+                ErrorF("[dix] %s: XI2 conversion failed in DGE (%d, %d). Skipping delivery.\n",

+                        thisDev->name, event->any.type, rc);

+        }

+

+        if (!deliveries)

+        {

+            rc = EventToXI(event, &xi, &count);

+            if (rc == Success)

+            {

+                /* try XI event */

+                if (grabinfo->fromPassiveGrab  &&

+                        grabinfo->implicitGrab)

+                    mask = grab->deviceMask;

+                else

+                    mask = grab->eventMask;

+

+                FixUpEventFromWindow(thisDev, xi, grab->window,

+                        None, TRUE);

+

+                if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,

+                            grab->window, xi, count) ||

+                        XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),

+                            grab->window, xi, count))

+                    deliveries = 1; /* don't send, but pretend we did */

+                else

+                {

+                    deliveries =

+                        TryClientEvents(rClient(grab), thisDev,

+                                xi, count,

+                                mask,

+                                GetEventFilter(thisDev, xi),

+                                grab);

+                }

+            } else if (rc != BadMatch)

+                ErrorF("[dix] %s: XI conversion failed in DGE (%d, %d). Skipping delivery.\n",

+                        thisDev->name, event->any.type, rc);

+        }

+

+        if (deliveries && (event->any.type == ET_Motion))

+            thisDev->valuator->motionHintWindow = grab->window;

+    }

+    if (deliveries && !deactivateGrab && event->any.type != ET_Motion)

+    {

+	switch (grabinfo->sync.state)

+	{

+	case FREEZE_BOTH_NEXT_EVENT:

+	    for (dev = inputInfo.devices; dev; dev = dev->next)

+	    {

+		if (dev == thisDev)

+		    continue;

+		FreezeThaw(dev, TRUE);

+		if ((dev->deviceGrab.sync.state == FREEZE_BOTH_NEXT_EVENT) &&

+		    (CLIENT_BITS(grab->resource) ==

+		     CLIENT_BITS(dev->deviceGrab.grab->resource)))

+		    dev->deviceGrab.sync.state = FROZEN_NO_EVENT;

+		else

+                    dev->deviceGrab.sync.other = grab;

+	    }

+	    /* fall through */

+	case FREEZE_NEXT_EVENT:

+	    grabinfo->sync.state = FROZEN_WITH_EVENT;

+	    FreezeThaw(thisDev, TRUE);

+	    if (!grabinfo->sync.event)

+		grabinfo->sync.event = calloc(1, sizeof(InternalEvent));

+	    *grabinfo->sync.event = event->device_event;

+	    break;

+	}

+    }

+

+    if (xi)

+        free(xi);

+    if (xi2)

+        free(xi2);

+}

+

+/* This function is used to set the key pressed or key released state -

+   this is only used when the pressing of keys does not cause

+   the device's processInputProc to be called, as in for example Mouse Keys.

+*/

+void

+FixKeyState (DeviceEvent *event, DeviceIntPtr keybd)

+{

+    int             key, bit;

+    BYTE   *kptr;

+    KeyClassPtr keyc = keybd->key;

+

+    key = event->detail.key;

+    kptr = &keyc->down[key >> 3];

+    bit = 1 << (key & 7);

+

+    if (event->type == ET_KeyPress) {

+	DebugF("FixKeyState: Key %d %s\n",key,

+               ((event->type == ET_KeyPress) ? "down" : "up"));

+    }

+

+    if (event->type == ET_KeyPress)

+	    *kptr |= bit;

+    else if (event->type == ET_KeyRelease)

+	    *kptr &= ~bit;

+    else

+        FatalError("Impossible keyboard event");

+}

+

+#define AtMostOneClient \

+	(SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask)

+#define ManagerMask \

+	(SubstructureRedirectMask | ResizeRedirectMask)

+

+/**

+ * Recalculate which events may be deliverable for the given window.

+ * Recalculated mask is used for quicker determination which events may be

+ * delivered to a window.

+ *

+ * The otherEventMasks on a WindowOptional is the combination of all event

+ * masks set by all clients on the window.

+ * deliverableEventMask is the combination of the eventMask and the

+ * otherEventMask plus the events that may be propagated to the parent.

+ *

+ * Traverses to siblings and parents of the window.

+ */

+void

+RecalculateDeliverableEvents(WindowPtr pWin)

+{

+    OtherClients *others;

+    WindowPtr pChild;

+

+    pChild = pWin;

+    while (1)

+    {

+	if (pChild->optional)

+	{

+	    pChild->optional->otherEventMasks = 0;

+	    for (others = wOtherClients(pChild); others; others = others->next)

+	    {

+		pChild->optional->otherEventMasks |= others->mask;

+	    }

+	}

+	pChild->deliverableEvents = pChild->eventMask|

+				    wOtherEventMasks(pChild);

+	if (pChild->parent)

+	    pChild->deliverableEvents |=

+		(pChild->parent->deliverableEvents &

+		 ~wDontPropagateMask(pChild) & PropagateMask);

+	if (pChild->firstChild)

+	{

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    break;

+	pChild = pChild->nextSib;

+    }

+}

+

+/**

+ *

+ *  \param value must conform to DeleteType

+ */

+int

+OtherClientGone(pointer value, XID id)

+{

+    OtherClientsPtr other, prev;

+    WindowPtr pWin = (WindowPtr)value;

+

+    prev = 0;

+    for (other = wOtherClients(pWin); other; other = other->next)

+    {

+	if (other->resource == id)

+	{

+	    if (prev)

+		prev->next = other->next;

+	    else

+	    {

+		if (!(pWin->optional->otherClients = other->next))

+		    CheckWindowOptionalNeed (pWin);

+	    }

+	    free(other);

+	    RecalculateDeliverableEvents(pWin);

+	    return(Success);

+	}

+	prev = other;

+    }

+    FatalError("client not on event list");

+    /*NOTREACHED*/

+    return -1; /* make compiler happy */

+}

+

+int

+EventSelectForWindow(WindowPtr pWin, ClientPtr client, Mask mask)

+{

+    Mask check;

+    OtherClients * others;

+    DeviceIntPtr dev;

+    int rc;

+

+    if (mask & ~AllEventMasks)

+    {

+	client->errorValue = mask;

+	return BadValue;

+    }

+    check = (mask & ManagerMask);

+    if (check) {

+	rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,

+		      RT_WINDOW, pWin, RT_NONE, NULL, DixManageAccess);

+	if (rc != Success)

+	    return rc;

+    }

+    check = (mask & AtMostOneClient);

+    if (check & (pWin->eventMask|wOtherEventMasks(pWin)))

+    {				       /* It is illegal for two different

+				          clients to select on any of the

+				          events for AtMostOneClient. However,

+				          it is OK, for some client to

+				          continue selecting on one of those

+				          events.  */

+	if ((wClient(pWin) != client) && (check & pWin->eventMask))

+	    return BadAccess;

+	for (others = wOtherClients (pWin); others; others = others->next)

+	{

+	    if (!SameClient(others, client) && (check & others->mask))

+		return BadAccess;

+	}

+    }

+    if (wClient (pWin) == client)

+    {

+	check = pWin->eventMask;

+	pWin->eventMask = mask;

+    }

+    else

+    {

+	for (others = wOtherClients (pWin); others; others = others->next)

+	{

+	    if (SameClient(others, client))

+	    {

+		check = others->mask;

+		if (mask == 0)

+		{

+		    FreeResource(others->resource, RT_NONE);

+		    return Success;

+		}

+		else

+		    others->mask = mask;

+		goto maskSet;

+	    }

+	}

+	check = 0;

+	if (!pWin->optional && !MakeWindowOptional (pWin))

+	    return BadAlloc;

+	others = malloc(sizeof(OtherClients));

+	if (!others)

+	    return BadAlloc;

+	others->mask = mask;

+	others->resource = FakeClientID(client->index);

+	others->next = pWin->optional->otherClients;

+	pWin->optional->otherClients = others;

+	if (!AddResource(others->resource, RT_OTHERCLIENT, (pointer)pWin))

+	    return BadAlloc;

+    }

+maskSet:

+    if ((mask & PointerMotionHintMask) && !(check & PointerMotionHintMask))

+    {

+        for (dev = inputInfo.devices; dev; dev = dev->next)

+        {

+            if (dev->valuator && dev->valuator->motionHintWindow == pWin)

+                dev->valuator->motionHintWindow = NullWindow;

+        }

+    }

+    RecalculateDeliverableEvents(pWin);

+    return Success;

+}

+

+int

+EventSuppressForWindow(WindowPtr pWin, ClientPtr client,

+                       Mask mask, Bool *checkOptional)

+{

+    int i, free;

+

+    if (mask & ~PropagateMask)

+    {

+	client->errorValue = mask;

+	return BadValue;

+    }

+    if (pWin->dontPropagate)

+	DontPropagateRefCnts[pWin->dontPropagate]--;

+    if (!mask)

+	i = 0;

+    else

+    {

+	for (i = DNPMCOUNT, free = 0; --i > 0; )

+	{

+	    if (!DontPropagateRefCnts[i])

+		free = i;

+	    else if (mask == DontPropagateMasks[i])

+		break;

+	}

+	if (!i && free)

+	{

+	    i = free;

+	    DontPropagateMasks[i] = mask;

+	}

+    }

+    if (i || !mask)

+    {

+	pWin->dontPropagate = i;

+	if (i)

+	    DontPropagateRefCnts[i]++;

+	if (pWin->optional)

+	{

+	    pWin->optional->dontPropagateMask = mask;

+	    *checkOptional = TRUE;

+	}

+    }

+    else

+    {

+	if (!pWin->optional && !MakeWindowOptional (pWin))

+	{

+	    if (pWin->dontPropagate)

+		DontPropagateRefCnts[pWin->dontPropagate]++;

+	    return BadAlloc;

+	}

+	pWin->dontPropagate = 0;

+        pWin->optional->dontPropagateMask = mask;

+    }

+    RecalculateDeliverableEvents(pWin);

+    return Success;

+}

+

+/**

+ * Assembles an EnterNotify or LeaveNotify and sends it event to the client.

+ * Uses the paired keyboard to get some additional information.

+ */

+void

+CoreEnterLeaveEvent(

+    DeviceIntPtr mouse,

+    int type,

+    int mode,

+    int detail,

+    WindowPtr pWin,

+    Window child)

+{

+    xEvent              event;

+    WindowPtr		focus;

+    DeviceIntPtr        keybd;

+    GrabPtr	        grab = mouse->deviceGrab.grab;

+    Mask		mask;

+

+    keybd = GetPairedDevice(mouse);

+

+    if ((pWin == mouse->valuator->motionHintWindow) &&

+	(detail != NotifyInferior))

+	mouse->valuator->motionHintWindow = NullWindow;

+    if (grab)

+    {

+	mask = (pWin == grab->window) ? grab->eventMask : 0;

+	if (grab->ownerEvents)

+	    mask |= EventMaskForClient(pWin, rClient(grab));

+    }

+    else

+    {

+	mask = pWin->eventMask | wOtherEventMasks(pWin);

+    }

+

+    memset(&event, 0, sizeof(xEvent));

+    event.u.u.type = type;

+    event.u.u.detail = detail;

+    event.u.enterLeave.time = currentTime.milliseconds;

+    event.u.enterLeave.rootX = mouse->spriteInfo->sprite->hot.x;

+    event.u.enterLeave.rootY = mouse->spriteInfo->sprite->hot.y;

+    /* Counts on the same initial structure of crossing & button events! */

+    FixUpEventFromWindow(mouse, &event, pWin, None, FALSE);

+    /* Enter/Leave events always set child */

+    event.u.enterLeave.child = child;

+    event.u.enterLeave.flags = event.u.keyButtonPointer.sameScreen ?

+        ELFlagSameScreen : 0;

+    event.u.enterLeave.state = mouse->button ? (mouse->button->state & 0x1f00) : 0;

+    if (keybd)

+        event.u.enterLeave.state |=

+                XkbGrabStateFromRec(&keybd->key->xkbInfo->state);

+    event.u.enterLeave.mode = mode;

+    focus = (keybd) ? keybd->focus->win : None;

+    if ((focus != NoneWin) &&

+            ((pWin == focus) || (focus == PointerRootWin) ||

+             IsParent(focus, pWin)))

+        event.u.enterLeave.flags |= ELFlagFocus;

+

+    if ((mask & GetEventFilter(mouse, &event)))

+    {

+        if (grab)

+            TryClientEvents(rClient(grab), mouse, &event, 1, mask,

+                            GetEventFilter(mouse, &event), grab);

+        else

+            DeliverEventsToWindow(mouse, pWin, &event, 1,

+                                  GetEventFilter(mouse, &event),

+                                  NullGrab);

+    }

+

+    if ((type == EnterNotify) && (mask & KeymapStateMask))

+    {

+        xKeymapEvent ke;

+        ClientPtr client = grab ? rClient(grab) : wClient(pWin);

+        if (XaceHook(XACE_DEVICE_ACCESS, client, keybd, DixReadAccess))

+            bzero((char *)&ke.map[0], 31);

+        else

+            memmove((char *)&ke.map[0], (char *)&keybd->key->down[1], 31);

+

+        ke.type = KeymapNotify;

+        if (grab)

+            TryClientEvents(rClient(grab), keybd, (xEvent *)&ke, 1,

+                            mask, KeymapStateMask, grab);

+        else

+            DeliverEventsToWindow(mouse, pWin, (xEvent *)&ke, 1,

+                                  KeymapStateMask, NullGrab);

+    }

+}

+

+void

+DeviceEnterLeaveEvent(

+    DeviceIntPtr mouse,

+    int sourceid,

+    int type,

+    int mode,

+    int detail,

+    WindowPtr pWin,

+    Window child)

+{

+    GrabPtr             grab = mouse->deviceGrab.grab;

+    xXIEnterEvent       *event;

+    int                 filter;

+    int                 btlen, len, i;

+    DeviceIntPtr        kbd;

+

+    if ((mode == XINotifyPassiveGrab && type == XI_Leave) ||

+        (mode == XINotifyPassiveUngrab && type == XI_Enter))

+        return;

+

+    btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0;

+    btlen = bytes_to_int32(btlen);

+    len = sizeof(xXIEnterEvent) + btlen * 4;

+

+    event = calloc(1, len);

+    event->type         = GenericEvent;

+    event->extension    = IReqCode;

+    event->evtype       = type;

+    event->length       = (len - sizeof(xEvent))/4;

+    event->buttons_len  = btlen;

+    event->detail       = detail;

+    event->time         = currentTime.milliseconds;

+    event->deviceid     = mouse->id;

+    event->sourceid     = sourceid;

+    event->mode         = mode;

+    event->root_x       = FP1616(mouse->spriteInfo->sprite->hot.x, 0);

+    event->root_y       = FP1616(mouse->spriteInfo->sprite->hot.y, 0);

+

+    for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)

+        if (BitIsOn(mouse->button->down, i))

+            SetBit(&event[1], i);

+

+    kbd = (IsMaster(mouse) || mouse->u.master) ? GetPairedDevice(mouse) : NULL;

+    if (kbd && kbd->key)

+    {

+        event->mods.base_mods = kbd->key->xkbInfo->state.base_mods;

+        event->mods.latched_mods = kbd->key->xkbInfo->state.latched_mods;

+        event->mods.locked_mods = kbd->key->xkbInfo->state.locked_mods;

+

+        event->group.base_group = kbd->key->xkbInfo->state.base_group;

+        event->group.latched_group = kbd->key->xkbInfo->state.latched_group;

+        event->group.locked_group = kbd->key->xkbInfo->state.locked_group;

+    }

+

+    FixUpEventFromWindow(mouse, (xEvent*)event, pWin, None, FALSE);

+

+    filter = GetEventFilter(mouse, (xEvent*)event);

+

+    if (grab)

+    {

+        Mask mask;

+        mask = grab->xi2mask[XIAllDevices][type/8] |

+               grab->xi2mask[XIAllMasterDevices][type/8] |

+               grab->xi2mask[mouse->id][type/8];

+        TryClientEvents(rClient(grab), mouse, (xEvent*)event, 1, mask,

+                        filter, grab);

+    } else {

+        if (!GetWindowXI2Mask(mouse, pWin, (xEvent*)event))

+            goto out;

+        DeliverEventsToWindow(mouse, pWin, (xEvent*)event, 1, filter,

+                              NullGrab);

+    }

+

+out:

+    free(event);

+}

+

+void

+CoreFocusEvent(DeviceIntPtr dev, int type, int mode, int detail, WindowPtr pWin)

+{

+    xEvent event;

+

+    memset(&event, 0, sizeof(xEvent));

+    event.u.focus.mode = mode;

+    event.u.u.type = type;

+    event.u.u.detail = detail;

+    event.u.focus.window = pWin->drawable.id;

+

+    DeliverEventsToWindow(dev, pWin, &event, 1,

+                          GetEventFilter(dev, &event), NullGrab);

+    if ((type == FocusIn) &&

+            ((pWin->eventMask | wOtherEventMasks(pWin)) & KeymapStateMask))

+    {

+        xKeymapEvent ke;

+        ClientPtr client = wClient(pWin);

+        if (XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess))

+            bzero((char *)&ke.map[0], 31);

+        else

+            memmove((char *)&ke.map[0], (char *)&dev->key->down[1], 31);

+

+        ke.type = KeymapNotify;

+        DeliverEventsToWindow(dev, pWin, (xEvent *)&ke, 1,

+                KeymapStateMask, NullGrab);

+    }

+}

+

+/**

+ * Set the input focus to the given window. Subsequent keyboard events will be

+ * delivered to the given window.

+ *

+ * Usually called from ProcSetInputFocus as result of a client request. If so,

+ * the device is the inputInfo.keyboard.

+ * If called from ProcXSetInputFocus as result of a client xinput request, the

+ * device is set to the device specified by the client.

+ *

+ * @param client Client that requested input focus change.

+ * @param dev Focus device.

+ * @param focusID The window to obtain the focus. Can be PointerRoot or None.

+ * @param revertTo Specifies where the focus reverts to when window becomes

+ * unviewable.

+ * @param ctime Specifies the time.

+ * @param followOK True if pointer is allowed to follow the keyboard.

+ */

+int

+SetInputFocus(

+    ClientPtr client,

+    DeviceIntPtr dev,

+    Window focusID,

+    CARD8 revertTo,

+    Time ctime,

+    Bool followOK)

+{

+    FocusClassPtr focus;

+    WindowPtr focusWin;

+    int mode, rc;

+    TimeStamp time;

+    DeviceIntPtr keybd; /* used for FollowKeyboard or FollowKeyboardWin */

+

+

+    UpdateCurrentTime();

+    if ((revertTo != RevertToParent) &&

+	(revertTo != RevertToPointerRoot) &&

+	(revertTo != RevertToNone) &&

+	((revertTo != RevertToFollowKeyboard) || !followOK))

+    {

+	client->errorValue = revertTo;

+	return BadValue;

+    }

+    time = ClientTimeToServerTime(ctime);

+

+    if (IsKeyboardDevice(dev))

+        keybd = dev;

+    else

+        keybd = GetPairedDevice(dev);

+

+    if ((focusID == None) || (focusID == PointerRoot))

+	focusWin = (WindowPtr)(long)focusID;

+    else if ((focusID == FollowKeyboard) && followOK)

+    {

+	focusWin = keybd->focus->win;

+    }

+    else {

+	rc = dixLookupWindow(&focusWin, focusID, client, DixSetAttrAccess);

+	if (rc != Success)

+	    return rc;

+	/* It is a match error to try to set the input focus to an

+	unviewable window. */

+	if(!focusWin->realized)

+	    return(BadMatch);

+    }

+    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixSetFocusAccess);

+    if (rc != Success)

+	return Success;

+

+    focus = dev->focus;

+    if ((CompareTimeStamps(time, currentTime) == LATER) ||

+	(CompareTimeStamps(time, focus->time) == EARLIER))

+	return Success;

+    mode = (dev->deviceGrab.grab) ? NotifyWhileGrabbed : NotifyNormal;

+    if (focus->win == FollowKeyboardWin)

+    {

+        if (!ActivateFocusInGrab(dev, keybd->focus->win, focusWin))

+            DoFocusEvents(dev, keybd->focus->win, focusWin, mode);

+    } else

+    {

+        if (!ActivateFocusInGrab(dev, focus->win, focusWin))

+            DoFocusEvents(dev, focus->win, focusWin, mode);

+    }

+    focus->time = time;

+    focus->revert = revertTo;

+    if (focusID == FollowKeyboard)

+	focus->win = FollowKeyboardWin;

+    else

+	focus->win = focusWin;

+    if ((focusWin == NoneWin) || (focusWin == PointerRootWin))

+	focus->traceGood = 0;

+    else

+    {

+        int depth = 0;

+	WindowPtr pWin;

+

+        for (pWin = focusWin; pWin; pWin = pWin->parent) depth++;

+        if (depth > focus->traceSize)

+        {

+	    focus->traceSize = depth+1;

+	    focus->trace = realloc(focus->trace,

+				    focus->traceSize * sizeof(WindowPtr));

+	}

+	focus->traceGood = depth;

+        for (pWin = focusWin, depth--; pWin; pWin = pWin->parent, depth--)

+	    focus->trace[depth] = pWin;

+    }

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for SetInputFocus request.

+ *

+ * Sets the input focus for the virtual core keyboard.

+ */

+int

+ProcSetInputFocus(ClientPtr client)

+{

+    DeviceIntPtr kbd = PickKeyboard(client);

+    REQUEST(xSetInputFocusReq);

+

+    REQUEST_SIZE_MATCH(xSetInputFocusReq);

+

+    return SetInputFocus(client, kbd, stuff->focus,

+			 stuff->revertTo, stuff->time, FALSE);

+}

+

+/**

+ * Server-side protocol handling for GetInputFocus request.

+ *

+ * Sends the current input focus for the client's keyboard back to the

+ * client.

+ */

+int

+ProcGetInputFocus(ClientPtr client)

+{

+    DeviceIntPtr kbd = PickKeyboard(client);

+    xGetInputFocusReply rep;

+    FocusClassPtr focus = kbd->focus;

+    int rc;

+    /* REQUEST(xReq); */

+    REQUEST_SIZE_MATCH(xReq);

+

+    rc = XaceHook(XACE_DEVICE_ACCESS, client, kbd, DixGetFocusAccess);

+    if (rc != Success)

+	return rc;

+

+    memset(&rep, 0, sizeof(xGetInputFocusReply));

+    rep.type = X_Reply;

+    rep.length = 0;

+    rep.sequenceNumber = client->sequence;

+    if (focus->win == NoneWin)

+	rep.focus = None;

+    else if (focus->win == PointerRootWin)

+	rep.focus = PointerRoot;

+    else rep.focus = focus->win->drawable.id;

+    rep.revertTo = focus->revert;

+    WriteReplyToClient(client, sizeof(xGetInputFocusReply), &rep);

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for GrabPointer request.

+ *

+ * Sets an active grab on the client's ClientPointer and returns success

+ * status to client.

+ */

+int

+ProcGrabPointer(ClientPtr client)

+{

+    xGrabPointerReply rep;

+    DeviceIntPtr device = PickPointer(client);

+    GrabPtr grab;

+    GrabMask mask;

+    WindowPtr confineTo;

+    CursorPtr oldCursor;

+    REQUEST(xGrabPointerReq);

+    TimeStamp time;

+    int rc;

+

+    REQUEST_SIZE_MATCH(xGrabPointerReq);

+    UpdateCurrentTime();

+

+    if (stuff->eventMask & ~PointerGrabMask)

+    {

+	client->errorValue = stuff->eventMask;

+        return BadValue;

+    }

+

+    if (stuff->confineTo == None)

+	confineTo = NullWindow;

+    else

+    {

+	rc = dixLookupWindow(&confineTo, stuff->confineTo, client,

+			     DixSetAttrAccess);

+	if (rc != Success)

+	    return rc;

+    }

+

+    memset(&rep, 0, sizeof(xGrabPointerReply));

+    oldCursor = NullCursor;

+    grab = device->deviceGrab.grab;

+

+    if (grab)

+    {

+        if (grab->confineTo && !confineTo)

+            ConfineCursorToWindow(device, RootWindow(device), FALSE, FALSE);

+        oldCursor = grab->cursor;

+    }

+

+    mask.core = stuff->eventMask;

+

+    rc = GrabDevice(client, device, stuff->pointerMode, stuff->keyboardMode,

+                    stuff->grabWindow, stuff->ownerEvents, stuff->time,

+                    &mask, GRABTYPE_CORE, stuff->cursor,

+                    stuff->confineTo, &rep.status);

+    if (rc != Success)

+        return rc;

+

+    if (oldCursor && rep.status == GrabSuccess)

+        FreeCursor (oldCursor, (Cursor)0);

+

+    time = ClientTimeToServerTime(stuff->time);

+    rep.type = X_Reply;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 0;

+    WriteReplyToClient(client, sizeof(xGrabPointerReply), &rep);

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for ChangeActivePointerGrab request.

+ *

+ * Changes properties of the grab hold by the client. If the client does not

+ * hold an active grab on the device, nothing happens.

+ */

+int

+ProcChangeActivePointerGrab(ClientPtr client)

+{

+    DeviceIntPtr device;

+    GrabPtr      grab;

+    CursorPtr newCursor, oldCursor;

+    REQUEST(xChangeActivePointerGrabReq);

+    TimeStamp time;

+

+    REQUEST_SIZE_MATCH(xChangeActivePointerGrabReq);

+    if (stuff->eventMask & ~PointerGrabMask)

+    {

+	client->errorValue = stuff->eventMask;

+        return BadValue;

+    }

+    if (stuff->cursor == None)

+	newCursor = NullCursor;

+    else

+    {

+	int rc = dixLookupResourceByType((pointer *)&newCursor, stuff->cursor,

+					 RT_CURSOR, client, DixUseAccess);

+	if (rc != Success)

+	{

+	    client->errorValue = stuff->cursor;

+	    return (rc == BadValue) ? BadCursor : rc;

+	}

+    }

+

+    device = PickPointer(client);

+    grab = device->deviceGrab.grab;

+

+    if (!grab)

+	return Success;

+    if (!SameClient(grab, client))

+	return Success;

+    time = ClientTimeToServerTime(stuff->time);

+    if ((CompareTimeStamps(time, currentTime) == LATER) ||

+	     (CompareTimeStamps(time, device->deviceGrab.grabTime) == EARLIER))

+	return Success;

+    oldCursor = grab->cursor;

+    grab->cursor = newCursor;

+    if (newCursor)

+	newCursor->refcnt++;

+    PostNewCursor(device);

+    if (oldCursor)

+	FreeCursor(oldCursor, (Cursor)0);

+    grab->eventMask = stuff->eventMask;

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for UngrabPointer request.

+ *

+ * Deletes a pointer grab on a device the client has grabbed.

+ */

+int

+ProcUngrabPointer(ClientPtr client)

+{

+    DeviceIntPtr device = PickPointer(client);

+    GrabPtr grab;

+    TimeStamp time;

+    REQUEST(xResourceReq);

+

+    REQUEST_SIZE_MATCH(xResourceReq);

+    UpdateCurrentTime();

+    grab = device->deviceGrab.grab;

+

+    time = ClientTimeToServerTime(stuff->id);

+    if ((CompareTimeStamps(time, currentTime) != LATER) &&

+	    (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&

+	    (grab) && SameClient(grab, client))

+	(*device->deviceGrab.DeactivateGrab)(device);

+    return Success;

+}

+

+/**

+ * Sets a grab on the given device.

+ *

+ * Called from ProcGrabKeyboard to work on the client's keyboard.

+ * Called from ProcXGrabDevice to work on the device specified by the client.

+ *

+ * The parameters this_mode and other_mode represent the keyboard_mode and

+ * pointer_mode parameters of XGrabKeyboard().

+ * See man page for details on all the parameters

+ *

+ * @param client Client that owns the grab.

+ * @param dev The device to grab.

+ * @param this_mode GrabModeSync or GrabModeAsync

+ * @param other_mode GrabModeSync or GrabModeAsync

+ * @param status Return code to be returned to the caller.

+ *

+ * @returns Success or BadValue.

+ */

+int

+GrabDevice(ClientPtr client, DeviceIntPtr dev,

+           unsigned pointer_mode, unsigned keyboard_mode, Window grabWindow,

+           unsigned ownerEvents, Time ctime, GrabMask *mask,

+           int grabtype, Cursor curs, Window confineToWin, CARD8 *status)

+{

+    WindowPtr pWin, confineTo;

+    GrabPtr grab;

+    TimeStamp time;

+    Mask access_mode = DixGrabAccess;

+    int rc;

+    GrabInfoPtr grabInfo = &dev->deviceGrab;

+    CursorPtr cursor;

+

+    UpdateCurrentTime();

+    if ((keyboard_mode != GrabModeSync) && (keyboard_mode != GrabModeAsync))

+    {

+	client->errorValue = keyboard_mode;

+        return BadValue;

+    }

+    if ((pointer_mode != GrabModeSync) && (pointer_mode != GrabModeAsync))

+    {

+	client->errorValue = pointer_mode;

+        return BadValue;

+    }

+    if ((ownerEvents != xFalse) && (ownerEvents != xTrue))

+    {

+	client->errorValue = ownerEvents;

+        return BadValue;

+    }

+

+    rc = dixLookupWindow(&pWin, grabWindow, client, DixSetAttrAccess);

+    if (rc != Success)

+	return rc;

+

+    if (confineToWin == None)

+	confineTo = NullWindow;

+    else

+    {

+	rc = dixLookupWindow(&confineTo, confineToWin, client,

+			     DixSetAttrAccess);

+	if (rc != Success)

+	    return rc;

+    }

+

+    if (curs == None)

+	cursor = NullCursor;

+    else

+    {

+	rc = dixLookupResourceByType((pointer *)&cursor, curs, RT_CURSOR,

+			       client, DixUseAccess);

+	if (rc != Success)

+	{

+	    client->errorValue = curs;

+	    return (rc == BadValue) ? BadCursor : rc;

+	}

+	access_mode |= DixForceAccess;

+    }

+

+    if (keyboard_mode == GrabModeSync || pointer_mode == GrabModeSync)

+	access_mode |= DixFreezeAccess;

+    rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);

+    if (rc != Success)

+	return rc;

+

+    time = ClientTimeToServerTime(ctime);

+    grab = grabInfo->grab;

+    if (grab && grab->grabtype != grabtype)

+        *status = AlreadyGrabbed;

+    if (grab && !SameClient(grab, client))

+	*status = AlreadyGrabbed;

+    else if ((!pWin->realized) ||

+             (confineTo &&

+                !(confineTo->realized

+                    && BorderSizeNotEmpty(dev, confineTo))))

+	*status = GrabNotViewable;

+    else if ((CompareTimeStamps(time, currentTime) == LATER) ||

+	     (CompareTimeStamps(time, grabInfo->grabTime) == EARLIER))

+	*status = GrabInvalidTime;

+    else if (grabInfo->sync.frozen &&

+	     grabInfo->sync.other && !SameClient(grabInfo->sync.other, client))

+	*status = GrabFrozen;

+    else

+    {

+	GrabRec tempGrab;

+

+        /* Otherwise segfaults happen on grabbed MPX devices */

+        memset(&tempGrab, 0, sizeof(GrabRec));

+

+        tempGrab.next = NULL;

+	tempGrab.window = pWin;

+	tempGrab.resource = client->clientAsMask;

+	tempGrab.ownerEvents = ownerEvents;

+	tempGrab.keyboardMode = keyboard_mode;

+	tempGrab.pointerMode = pointer_mode;

+	if (grabtype == GRABTYPE_CORE)

+	    tempGrab.eventMask = mask->core;

+	else if (grabtype == GRABTYPE_XI)

+	    tempGrab.eventMask = mask->xi;

+	else

+	    memcpy(tempGrab.xi2mask, mask->xi2mask, sizeof(tempGrab.xi2mask));

+	tempGrab.device = dev;

+	tempGrab.cursor = cursor;

+	tempGrab.confineTo = confineTo;

+	tempGrab.grabtype = grabtype;

+	(*grabInfo->ActivateGrab)(dev, &tempGrab, time, FALSE);

+	*status = GrabSuccess;

+    }

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for GrabKeyboard request.

+ *

+ * Grabs the client's keyboard and returns success status to client.

+ */

+int

+ProcGrabKeyboard(ClientPtr client)

+{

+    xGrabKeyboardReply rep;

+    REQUEST(xGrabKeyboardReq);

+    int result;

+    DeviceIntPtr keyboard = PickKeyboard(client);

+    GrabMask mask;

+

+    REQUEST_SIZE_MATCH(xGrabKeyboardReq);

+

+    memset(&rep, 0, sizeof(xGrabKeyboardReply));

+    mask.core = KeyPressMask | KeyReleaseMask;

+

+    result = GrabDevice(client, keyboard, stuff->pointerMode,

+            stuff->keyboardMode, stuff->grabWindow, stuff->ownerEvents,

+            stuff->time, &mask, GRABTYPE_CORE, None, None,

+            &rep.status);

+

+    if (result != Success)

+	return result;

+    rep.type = X_Reply;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 0;

+    WriteReplyToClient(client, sizeof(xGrabKeyboardReply), &rep);

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for UngrabKeyboard request.

+ *

+ * Deletes a possible grab on the client's keyboard.

+ */

+int

+ProcUngrabKeyboard(ClientPtr client)

+{

+    DeviceIntPtr device = PickKeyboard(client);

+    GrabPtr grab;

+    TimeStamp time;

+    REQUEST(xResourceReq);

+

+    REQUEST_SIZE_MATCH(xResourceReq);

+    UpdateCurrentTime();

+

+    grab = device->deviceGrab.grab;

+

+    time = ClientTimeToServerTime(stuff->id);

+    if ((CompareTimeStamps(time, currentTime) != LATER) &&

+	(CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&

+	(grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_CORE)

+	(*device->deviceGrab.DeactivateGrab)(device);

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for QueryPointer request.

+ *

+ * Returns the current state and position of the client's ClientPointer to the

+ * client.

+ */

+int

+ProcQueryPointer(ClientPtr client)

+{

+    xQueryPointerReply rep;

+    WindowPtr pWin, t;

+    DeviceIntPtr mouse = PickPointer(client);

+    DeviceIntPtr keyboard;

+    SpritePtr pSprite;

+    int rc;

+    REQUEST(xResourceReq);

+    REQUEST_SIZE_MATCH(xResourceReq);

+

+    rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);

+    if (rc != Success)

+	return rc;

+    rc = XaceHook(XACE_DEVICE_ACCESS, client, mouse, DixReadAccess);

+    if (rc != Success && rc != BadAccess)

+	return rc;

+

+    keyboard = GetPairedDevice(mouse);

+

+    pSprite = mouse->spriteInfo->sprite;

+    if (mouse->valuator->motionHintWindow)

+	MaybeStopHint(mouse, client);

+    memset(&rep, 0, sizeof(xQueryPointerReply));

+    rep.type = X_Reply;

+    rep.sequenceNumber = client->sequence;

+    rep.mask = mouse->button ? (mouse->button->state) : 0;

+    rep.mask |= XkbStateFieldFromRec(&keyboard->key->xkbInfo->state);

+    rep.length = 0;

+    rep.root = (RootWindow(mouse))->drawable.id;

+    rep.rootX = pSprite->hot.x;

+    rep.rootY = pSprite->hot.y;

+    rep.child = None;

+    if (pSprite->hot.pScreen == pWin->drawable.pScreen)

+    {

+	rep.sameScreen = xTrue;

+	rep.winX = pSprite->hot.x - pWin->drawable.x;

+	rep.winY = pSprite->hot.y - pWin->drawable.y;

+	for (t = pSprite->win; t; t = t->parent)

+	    if (t->parent == pWin)

+	    {

+		rep.child = t->drawable.id;

+		break;

+	    }

+    }

+    else

+    {

+	rep.sameScreen = xFalse;

+	rep.winX = 0;

+	rep.winY = 0;

+    }

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension) {

+	rep.rootX += panoramiXdataPtr[0].x;

+	rep.rootY += panoramiXdataPtr[0].y;

+	if(stuff->id == rep.root) {

+	    rep.winX += panoramiXdataPtr[0].x;

+	    rep.winY += panoramiXdataPtr[0].y;

+	}

+    }

+#endif

+

+    if (rc == BadAccess) {

+	rep.mask = 0;

+	rep.child = None;

+	rep.rootX = 0;

+	rep.rootY = 0;

+	rep.winX = 0;

+	rep.winY = 0;

+    }

+

+    WriteReplyToClient(client, sizeof(xQueryPointerReply), &rep);

+

+    return(Success);

+}

+

+/**

+ * Initializes the device list and the DIX sprite to sane values. Allocates

+ * trace memory used for quick window traversal.

+ */

+void

+InitEvents(void)

+{

+    int i;

+

+    inputInfo.numDevices = 0;

+    inputInfo.devices = (DeviceIntPtr)NULL;

+    inputInfo.off_devices = (DeviceIntPtr)NULL;

+    inputInfo.keyboard = (DeviceIntPtr)NULL;

+    inputInfo.pointer = (DeviceIntPtr)NULL;

+    /* The mask for pointer motion events may have changed in the last server

+     * generation. See comment above definition of filters. */

+    filters[0][PointerMotionMask] = MotionNotify;

+    for (i = 1; i < MAXDEVICES; i++)

+    {

+        memcpy(&filters[i], filters[0], sizeof(filters[0]));

+    }

+

+    syncEvents.replayDev = (DeviceIntPtr)NULL;

+    syncEvents.replayWin = NullWindow;

+    while (syncEvents.pending)

+    {

+	QdEventPtr next = syncEvents.pending->next;

+	free(syncEvents.pending);

+	syncEvents.pending = next;

+    }

+    syncEvents.pendtail = &syncEvents.pending;

+    syncEvents.playingEvents = FALSE;

+    syncEvents.time.months = 0;

+    syncEvents.time.milliseconds = 0;	/* hardly matters */

+    currentTime.months = 0;

+    currentTime.milliseconds = GetTimeInMillis();

+    lastDeviceEventTime = currentTime;

+    for (i = 0; i < DNPMCOUNT; i++)

+    {

+	DontPropagateMasks[i] = 0;

+	DontPropagateRefCnts[i] = 0;

+    }

+

+    InputEventListLen = GetMaximumEventsNum();

+    InputEventList = InitEventList(InputEventListLen);

+    if (!InputEventList)

+        FatalError("[dix] Failed to allocate input event list.\n");

+}

+

+void

+CloseDownEvents(void)

+{

+    FreeEventList(InputEventList, InputEventListLen);

+    InputEventListLen = 0;

+    InputEventList = NULL;

+}

+

+/**

+ * Server-side protocol handling for SendEvent request.

+ *

+ * Locates the window to send the event to and forwards the event.

+ */

+int

+ProcSendEvent(ClientPtr client)

+{

+    WindowPtr pWin;

+    WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */

+    DeviceIntPtr dev = PickPointer(client);

+    DeviceIntPtr keybd = GetPairedDevice(dev);

+    SpritePtr pSprite = dev->spriteInfo->sprite;

+    REQUEST(xSendEventReq);

+

+    REQUEST_SIZE_MATCH(xSendEventReq);

+

+    /* The client's event type must be a core event type or one defined by an

+	extension. */

+

+    if ( ! ((stuff->event.u.u.type > X_Reply &&

+	     stuff->event.u.u.type < LASTEvent) ||

+	    (stuff->event.u.u.type >= EXTENSION_EVENT_BASE &&

+	     stuff->event.u.u.type < (unsigned)lastEvent)))

+    {

+	client->errorValue = stuff->event.u.u.type;

+	return BadValue;

+    }

+    if (stuff->event.u.u.type == ClientMessage &&

+	stuff->event.u.u.detail != 8 &&

+	stuff->event.u.u.detail != 16 &&

+	stuff->event.u.u.detail != 32)

+    {

+	client->errorValue = stuff->event.u.u.detail;

+	return BadValue;

+    }

+    if (stuff->eventMask & ~AllEventMasks)

+    {

+	client->errorValue = stuff->eventMask;

+	return BadValue;

+    }

+

+    if (stuff->destination == PointerWindow)

+	pWin = pSprite->win;

+    else if (stuff->destination == InputFocus)

+    {

+	WindowPtr inputFocus = (keybd) ? keybd->focus->win : NoneWin;

+

+	if (inputFocus == NoneWin)

+	    return Success;

+

+	/* If the input focus is PointerRootWin, send the event to where

+	the pointer is if possible, then perhaps propogate up to root. */

+	if (inputFocus == PointerRootWin)

+	    inputFocus = pSprite->spriteTrace[0]; /* Root window! */

+

+	if (IsParent(inputFocus, pSprite->win))

+	{

+	    effectiveFocus = inputFocus;

+	    pWin = pSprite->win;

+	}

+	else

+	    effectiveFocus = pWin = inputFocus;

+    }

+    else

+	dixLookupWindow(&pWin, stuff->destination, client, DixSendAccess);

+

+    if (!pWin)

+	return BadWindow;

+    if ((stuff->propagate != xFalse) && (stuff->propagate != xTrue))

+    {

+	client->errorValue = stuff->propagate;

+	return BadValue;

+    }

+    stuff->event.u.u.type |= 0x80;

+    if (stuff->propagate)

+    {

+	for (;pWin; pWin = pWin->parent)

+	{

+	    if (XaceHook(XACE_SEND_ACCESS, client, NULL, pWin,

+			 &stuff->event, 1))

+		return Success;

+            if (DeliverEventsToWindow(dev, pWin,

+                        &stuff->event, 1, stuff->eventMask, NullGrab))

+		return Success;

+	    if (pWin == effectiveFocus)

+		return Success;

+	    stuff->eventMask &= ~wDontPropagateMask(pWin);

+	    if (!stuff->eventMask)

+		break;

+	}

+    }

+    else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, &stuff->event, 1))

+        DeliverEventsToWindow(dev, pWin, &stuff->event,

+                                    1, stuff->eventMask, NullGrab);

+    return Success;

+}

+

+/**

+ * Server-side protocol handling for UngrabKey request.

+ *

+ * Deletes a passive grab for the given key. Works on the

+ * client's keyboard.

+ */

+int

+ProcUngrabKey(ClientPtr client)

+{

+    REQUEST(xUngrabKeyReq);

+    WindowPtr pWin;

+    GrabRec tempGrab;

+    DeviceIntPtr keybd = PickKeyboard(client);

+    int rc;

+

+    REQUEST_SIZE_MATCH(xUngrabKeyReq);

+    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixGetAttrAccess);

+    if (rc != Success)

+	return rc;

+

+    if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||

+	 (stuff->key < keybd->key->xkbInfo->desc->min_key_code))

+	&& (stuff->key != AnyKey))

+    {

+	client->errorValue = stuff->key;

+        return BadValue;

+    }

+    if ((stuff->modifiers != AnyModifier) &&

+	(stuff->modifiers & ~AllModifiersMask))

+    {

+	client->errorValue = stuff->modifiers;

+	return BadValue;

+    }

+    tempGrab.resource = client->clientAsMask;

+    tempGrab.device = keybd;

+    tempGrab.window = pWin;

+    tempGrab.modifiersDetail.exact = stuff->modifiers;

+    tempGrab.modifiersDetail.pMask = NULL;

+    tempGrab.modifierDevice = GetPairedDevice(keybd);

+    tempGrab.type = KeyPress;

+    tempGrab.grabtype = GRABTYPE_CORE;

+    tempGrab.detail.exact = stuff->key;

+    tempGrab.detail.pMask = NULL;

+    tempGrab.next = NULL;

+

+    if (!DeletePassiveGrabFromList(&tempGrab))

+	return(BadAlloc);

+    return(Success);

+}

+

+/**

+ * Server-side protocol handling for GrabKey request.

+ *

+ * Creates a grab for the client's keyboard and adds it to the list of passive

+ * grabs.

+ */

+int

+ProcGrabKey(ClientPtr client)

+{

+    WindowPtr pWin;

+    REQUEST(xGrabKeyReq);

+    GrabPtr grab;

+    DeviceIntPtr keybd = PickKeyboard(client);

+    int rc;

+    GrabParameters param;

+    GrabMask mask;

+

+    REQUEST_SIZE_MATCH(xGrabKeyReq);

+

+    memset(&param, 0, sizeof(param));

+    param.grabtype = GRABTYPE_CORE;

+    param.ownerEvents = stuff->ownerEvents;

+    param.this_device_mode = stuff->keyboardMode;

+    param.other_devices_mode = stuff->pointerMode;

+    param.modifiers = stuff->modifiers;

+

+    rc = CheckGrabValues(client, &param);

+    if (rc != Success)

+        return rc;

+

+    if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||

+	 (stuff->key < keybd->key->xkbInfo->desc->min_key_code))

+	&& (stuff->key != AnyKey))

+    {

+	client->errorValue = stuff->key;

+        return BadValue;

+    }

+    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);

+    if (rc != Success)

+	return rc;

+

+

+    mask.core = (KeyPressMask | KeyReleaseMask);

+

+    grab = CreateGrab(client->index, keybd, keybd, pWin, GRABTYPE_CORE, &mask,

+                      &param, KeyPress, stuff->key, NullWindow, NullCursor);

+    if (!grab)

+	return BadAlloc;

+    return AddPassiveGrabToList(client, grab);

+}

+

+

+/**

+ * Server-side protocol handling for GrabButton request.

+ *

+ * Creates a grab for the client's ClientPointer and adds it as a passive grab

+ * to the list.

+ */

+int

+ProcGrabButton(ClientPtr client)

+{

+    WindowPtr pWin, confineTo;

+    REQUEST(xGrabButtonReq);

+    CursorPtr cursor;

+    GrabPtr grab;

+    DeviceIntPtr ptr, modifierDevice;

+    Mask access_mode = DixGrabAccess;

+    GrabMask mask;

+    GrabParameters param;

+    int rc;

+

+    REQUEST_SIZE_MATCH(xGrabButtonReq);

+    if ((stuff->pointerMode != GrabModeSync) &&

+	(stuff->pointerMode != GrabModeAsync))

+    {

+	client->errorValue = stuff->pointerMode;

+        return BadValue;

+    }

+    if ((stuff->keyboardMode != GrabModeSync) &&

+	(stuff->keyboardMode != GrabModeAsync))

+    {

+	client->errorValue = stuff->keyboardMode;

+        return BadValue;

+    }

+    if ((stuff->modifiers != AnyModifier) &&

+	(stuff->modifiers & ~AllModifiersMask))

+    {

+	client->errorValue = stuff->modifiers;

+	return BadValue;

+    }

+    if ((stuff->ownerEvents != xFalse) && (stuff->ownerEvents != xTrue))

+    {

+	client->errorValue = stuff->ownerEvents;

+	return BadValue;

+    }

+    if (stuff->eventMask & ~PointerGrabMask)

+    {

+	client->errorValue = stuff->eventMask;

+        return BadValue;

+    }

+    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);

+    if (rc != Success)

+	return rc;

+    if (stuff->confineTo == None)

+       confineTo = NullWindow;

+    else {

+	rc = dixLookupWindow(&confineTo, stuff->confineTo, client,

+			     DixSetAttrAccess);

+	if (rc != Success)

+	    return rc;

+    }

+    if (stuff->cursor == None)

+	cursor = NullCursor;

+    else

+    {

+	rc = dixLookupResourceByType((pointer *)&cursor, stuff->cursor, RT_CURSOR,

+			       client, DixUseAccess);

+	if (rc != Success)

+	{

+	    client->errorValue = stuff->cursor;

+	    return (rc == BadValue) ? BadCursor : rc;

+	}

+	access_mode |= DixForceAccess;

+    }

+

+    ptr = PickPointer(client);

+    modifierDevice = GetPairedDevice(ptr);

+    if (stuff->pointerMode == GrabModeSync ||

+	stuff->keyboardMode == GrabModeSync)

+	access_mode |= DixFreezeAccess;

+    rc = XaceHook(XACE_DEVICE_ACCESS, client, ptr, access_mode);

+    if (rc != Success)

+	return rc;

+

+    memset(&param, 0, sizeof(param));

+    param.grabtype = GRABTYPE_CORE;

+    param.ownerEvents = stuff->ownerEvents;

+    param.this_device_mode = stuff->keyboardMode;

+    param.other_devices_mode = stuff->pointerMode;

+    param.modifiers = stuff->modifiers;

+

+    mask.core = stuff->eventMask;

+

+    grab = CreateGrab(client->index, ptr, modifierDevice, pWin,

+                      GRABTYPE_CORE, &mask, &param, ButtonPress,

+                      stuff->button, confineTo, cursor);

+    if (!grab)

+	return BadAlloc;

+    return AddPassiveGrabToList(client, grab);

+}

+

+/**

+ * Server-side protocol handling for UngrabButton request.

+ *

+ * Deletes a passive grab on the client's ClientPointer from the list.

+ */

+int

+ProcUngrabButton(ClientPtr client)

+{

+    REQUEST(xUngrabButtonReq);

+    WindowPtr pWin;

+    GrabRec tempGrab;

+    int rc;

+    DeviceIntPtr ptr;

+

+    REQUEST_SIZE_MATCH(xUngrabButtonReq);

+    if ((stuff->modifiers != AnyModifier) &&

+	(stuff->modifiers & ~AllModifiersMask))

+    {

+	client->errorValue = stuff->modifiers;

+	return BadValue;

+    }

+    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixReadAccess);

+    if (rc != Success)

+	return rc;

+

+    ptr = PickPointer(client);

+

+    tempGrab.resource = client->clientAsMask;

+    tempGrab.device = ptr;

+    tempGrab.window = pWin;

+    tempGrab.modifiersDetail.exact = stuff->modifiers;

+    tempGrab.modifiersDetail.pMask = NULL;

+    tempGrab.modifierDevice = GetPairedDevice(ptr);

+    tempGrab.type = ButtonPress;

+    tempGrab.detail.exact = stuff->button;

+    tempGrab.grabtype = GRABTYPE_CORE;

+    tempGrab.detail.pMask = NULL;

+    tempGrab.next = NULL;

+

+    if (!DeletePassiveGrabFromList(&tempGrab))

+	return(BadAlloc);

+    return(Success);

+}

+

+/**

+ * Deactivate any grab that may be on the window, remove the focus.

+ * Delete any XInput extension events from the window too. Does not change the

+ * window mask. Use just before the window is deleted.

+ *

+ * If freeResources is set, passive grabs on the window are deleted.

+ *

+ * @param pWin The window to delete events from.

+ * @param freeResources True if resources associated with the window should be

+ * deleted.

+ */

+void

+DeleteWindowFromAnyEvents(WindowPtr pWin, Bool freeResources)

+{

+    WindowPtr		parent;

+    DeviceIntPtr	mouse = inputInfo.pointer;

+    DeviceIntPtr	keybd = inputInfo.keyboard;

+    FocusClassPtr	focus;

+    OtherClientsPtr	oc;

+    GrabPtr		passive;

+    GrabPtr             grab;

+

+

+    /* Deactivate any grabs performed on this window, before making any

+	input focus changes. */

+    grab = mouse->deviceGrab.grab;

+    if (grab &&

+	((grab->window == pWin) || (grab->confineTo == pWin)))

+	(*mouse->deviceGrab.DeactivateGrab)(mouse);

+

+

+    /* Deactivating a keyboard grab should cause focus events. */

+    grab = keybd->deviceGrab.grab;

+    if (grab && (grab->window == pWin))

+	(*keybd->deviceGrab.DeactivateGrab)(keybd);

+

+    /* And now the real devices */

+    for (mouse = inputInfo.devices; mouse; mouse = mouse->next)

+    {

+        grab = mouse->deviceGrab.grab;

+        if (grab && ((grab->window == pWin) || (grab->confineTo == pWin)))

+            (*mouse->deviceGrab.DeactivateGrab)(mouse);

+    }

+

+

+    for (keybd = inputInfo.devices; keybd; keybd = keybd->next)

+    {

+        if (IsKeyboardDevice(keybd))

+        {

+            focus = keybd->focus;

+

+            /* If the focus window is a root window (ie. has no parent) then don't

+               delete the focus from it. */

+

+            if ((pWin == focus->win) && (pWin->parent != NullWindow))

+            {

+                int focusEventMode = NotifyNormal;

+

+                /* If a grab is in progress, then alter the mode of focus events. */

+

+                if (keybd->deviceGrab.grab)

+                    focusEventMode = NotifyWhileGrabbed;

+

+                switch (focus->revert)

+                {

+                    case RevertToNone:

+                        DoFocusEvents(keybd, pWin, NoneWin, focusEventMode);

+                        focus->win = NoneWin;

+                        focus->traceGood = 0;

+                        break;

+                    case RevertToParent:

+                        parent = pWin;

+                        do

+                        {

+                            parent = parent->parent;

+                            focus->traceGood--;

+                        } while (!parent->realized

+                                /* This would be a good protocol change -- windows being reparented

+                                   during SaveSet processing would cause the focus to revert to the

+                                   nearest enclosing window which will survive the death of the exiting

+                                   client, instead of ending up reverting to a dying window and thence

+                                   to None

+                                 */

+#ifdef NOTDEF

+				 || wClient(parent)->clientGone

+#endif

+                                );

+                        if (!ActivateFocusInGrab(keybd, pWin, parent))

+                            DoFocusEvents(keybd, pWin, parent, focusEventMode);

+                        focus->win = parent;

+                        focus->revert = RevertToNone;

+                        break;

+                    case RevertToPointerRoot:

+                        if (!ActivateFocusInGrab(keybd, pWin, PointerRootWin))

+                            DoFocusEvents(keybd, pWin, PointerRootWin, focusEventMode);

+                        focus->win = PointerRootWin;

+                        focus->traceGood = 0;

+                        break;

+                }

+            }

+        }

+

+        if (IsPointerDevice(keybd))

+        {

+            if (keybd->valuator->motionHintWindow == pWin)

+                keybd->valuator->motionHintWindow = NullWindow;

+        }

+    }

+

+    if (freeResources)

+    {

+	if (pWin->dontPropagate)

+	    DontPropagateRefCnts[pWin->dontPropagate]--;

+	while ( (oc = wOtherClients(pWin)) )

+	    FreeResource(oc->resource, RT_NONE);

+	while ( (passive = wPassiveGrabs(pWin)) )

+	    FreeResource(passive->resource, RT_NONE);

+     }

+

+    DeleteWindowFromAnyExtEvents(pWin, freeResources);

+}

+

+/**

+ * Call this whenever some window at or below pWin has changed geometry. If

+ * there is a grab on the window, the cursor will be re-confined into the

+ * window.

+ */

+void

+CheckCursorConfinement(WindowPtr pWin)

+{

+    GrabPtr grab;

+    WindowPtr confineTo;

+    DeviceIntPtr pDev;

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum) return;

+#endif

+

+    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)

+    {

+        if (DevHasCursor(pDev))

+        {

+            grab = pDev->deviceGrab.grab;

+            if (grab && (confineTo = grab->confineTo))

+            {

+                if (!BorderSizeNotEmpty(pDev, confineTo))

+                    (*pDev->deviceGrab.DeactivateGrab)(pDev);

+                else if ((pWin == confineTo) || IsParent(pWin, confineTo))

+                    ConfineCursorToWindow(pDev, confineTo, TRUE, TRUE);

+            }

+        }

+    }

+}

+

+Mask

+EventMaskForClient(WindowPtr pWin, ClientPtr client)

+{

+    OtherClientsPtr	other;

+

+    if (wClient (pWin) == client)

+	return pWin->eventMask;

+    for (other = wOtherClients(pWin); other; other = other->next)

+    {

+	if (SameClient(other, client))

+	    return other->mask;

+    }

+    return 0;

+}

+

+/**

+ * Server-side protocol handling for RecolorCursor request.

+ */

+int

+ProcRecolorCursor(ClientPtr client)

+{

+    CursorPtr pCursor;

+    int		rc, nscr;

+    ScreenPtr	pscr;

+    Bool	displayed;

+    SpritePtr   pSprite = PickPointer(client)->spriteInfo->sprite;

+    REQUEST(xRecolorCursorReq);

+

+    REQUEST_SIZE_MATCH(xRecolorCursorReq);

+    rc = dixLookupResourceByType((pointer *)&pCursor, stuff->cursor, RT_CURSOR,

+			   client, DixWriteAccess);

+    if (rc != Success)

+    {

+	client->errorValue = stuff->cursor;

+	return (rc == BadValue) ? BadCursor : rc;

+    }

+

+    pCursor->foreRed = stuff->foreRed;

+    pCursor->foreGreen = stuff->foreGreen;

+    pCursor->foreBlue = stuff->foreBlue;

+

+    pCursor->backRed = stuff->backRed;

+    pCursor->backGreen = stuff->backGreen;

+    pCursor->backBlue = stuff->backBlue;

+

+    for (nscr = 0; nscr < screenInfo.numScreens; nscr++)

+    {

+	pscr = screenInfo.screens[nscr];

+#ifdef PANORAMIX

+	if(!noPanoramiXExtension)

+	    displayed = (pscr == pSprite->screen);

+	else

+#endif

+	    displayed = (pscr == pSprite->hotPhys.pScreen);

+	( *pscr->RecolorCursor)(PickPointer(client), pscr, pCursor,

+				(pCursor == pSprite->current) && displayed);

+    }

+    return (Success);

+}

+

+/**

+ * Write the given events to a client, swapping the byte order if necessary.

+ * To swap the byte ordering, a callback is called that has to be set up for

+ * the given event type.

+ *

+ * In the case of DeviceMotionNotify trailed by DeviceValuators, the events

+ * can be more than one. Usually it's just one event.

+ *

+ * Do not modify the event structure passed in. See comment below.

+ *

+ * @param pClient Client to send events to.

+ * @param count Number of events.

+ * @param events The event list.

+ */

+void

+WriteEventsToClient(ClientPtr pClient, int count, xEvent *events)

+{

+#ifdef PANORAMIX

+    xEvent    eventCopy;

+#endif

+    xEvent    *eventTo, *eventFrom;

+    int       i,

+              eventlength = sizeof(xEvent);

+

+    /* Let XKB rewrite the state, as it depends on client preferences. */

+    XkbFilterEvents(pClient, count, events);

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension &&

+       (panoramiXdataPtr[0].x || panoramiXdataPtr[0].y))

+    {

+	switch(events->u.u.type) {

+	case MotionNotify:

+	case ButtonPress:

+	case ButtonRelease:

+	case KeyPress:

+	case KeyRelease:

+	case EnterNotify:

+	case LeaveNotify:

+	/*

+	   When multiple clients want the same event DeliverEventsToWindow

+	   passes the same event structure multiple times so we can't

+	   modify the one passed to us

+        */

+	    count = 1;  /* should always be 1 */

+	    memcpy(&eventCopy, events, sizeof(xEvent));

+	    eventCopy.u.keyButtonPointer.rootX += panoramiXdataPtr[0].x;

+	    eventCopy.u.keyButtonPointer.rootY += panoramiXdataPtr[0].y;

+	    if(eventCopy.u.keyButtonPointer.event ==

+	       eventCopy.u.keyButtonPointer.root)

+	    {

+		eventCopy.u.keyButtonPointer.eventX += panoramiXdataPtr[0].x;

+		eventCopy.u.keyButtonPointer.eventY += panoramiXdataPtr[0].y;

+	    }

+	    events = &eventCopy;

+	    break;

+	default: break;

+	}

+    }

+#endif

+

+    if (EventCallback)

+    {

+	EventInfoRec eventinfo;

+	eventinfo.client = pClient;

+	eventinfo.events = events;

+	eventinfo.count = count;

+	CallCallbacks(&EventCallback, (pointer)&eventinfo);

+    }

+#ifdef XSERVER_DTRACE

+    if (XSERVER_SEND_EVENT_ENABLED()) {

+	for (i = 0; i < count; i++)

+	{

+	    XSERVER_SEND_EVENT(pClient->index, events[i].u.u.type, &events[i]);

+	}

+    }

+#endif

+    /* Just a safety check to make sure we only have one GenericEvent, it just

+     * makes things easier for me right now. (whot) */

+    for (i = 1; i < count; i++)

+    {

+        if (events[i].u.u.type == GenericEvent)

+        {

+            ErrorF("[dix] TryClientEvents: Only one GenericEvent at a time.\n");

+            return;

+        }

+    }

+

+    if (events->u.u.type == GenericEvent)

+    {

+        eventlength += ((xGenericEvent*)events)->length * 4;

+    }

+

+    if(pClient->swapped)

+    {

+        if (eventlength > swapEventLen)

+        {

+            swapEventLen = eventlength;

+            swapEvent = realloc(swapEvent, swapEventLen);

+            if (!swapEvent)

+            {

+                FatalError("WriteEventsToClient: Out of memory.\n");

+                return;

+            }

+        }

+

+	for(i = 0; i < count; i++)

+	{

+	    eventFrom = &events[i];

+            eventTo = swapEvent;

+

+	    /* Remember to strip off the leading bit of type in case

+	       this event was sent with "SendEvent." */

+	    (*EventSwapVector[eventFrom->u.u.type & 0177])

+		(eventFrom, eventTo);

+

+	    WriteToClient(pClient, eventlength, (char *)eventTo);

+	}

+    }

+    else

+    {

+        /* only one GenericEvent, remember? that means either count is 1 and

+         * eventlength is arbitrary or eventlength is 32 and count doesn't

+         * matter. And we're all set. Woohoo. */

+	WriteToClient(pClient, count * eventlength, (char *) events);

+    }

+}

+

+/*

+ * Set the client pointer for the given client.

+ *

+ * A client can have exactly one ClientPointer. Each time a

+ * request/reply/event is processed and the choice of devices is ambiguous

+ * (e.g. QueryPointer request), the server will pick the ClientPointer (see

+ * PickPointer()).

+ * If a keyboard is needed, the first keyboard paired with the CP is used.

+ */

+int

+SetClientPointer(ClientPtr client, DeviceIntPtr device)

+{

+    int rc = XaceHook(XACE_DEVICE_ACCESS, client, device, DixUseAccess);

+    if (rc != Success)

+	return rc;

+

+    if (!IsMaster(device))

+    {

+        ErrorF("[dix] Need master device for ClientPointer. This is a bug.\n");

+        return BadDevice;

+    } else if (!device->spriteInfo->spriteOwner)

+    {

+        ErrorF("[dix] Device %d does not have a sprite. "

+                "Cannot be ClientPointer\n", device->id);

+        return BadDevice;

+    }

+    client->clientPtr = device;

+    return Success;

+}

+

+/* PickPointer will pick an appropriate pointer for the given client.

+ *

+ * An "appropriate device" is (in order of priority):

+ *  1) A device the given client has a core grab on.

+ *  2) A device set as ClientPointer for the given client.

+ *  3) The first master device.

+ */

+DeviceIntPtr

+PickPointer(ClientPtr client)

+{

+    DeviceIntPtr it = inputInfo.devices;

+

+    /* First, check if the client currently has a grab on a device. Even

+     * keyboards count. */

+    for(it = inputInfo.devices; it; it = it->next)

+    {

+        GrabPtr grab = it->deviceGrab.grab;

+        if (grab && grab->grabtype == GRABTYPE_CORE && SameClient(grab, client))

+        {

+            it = GetMaster(it, MASTER_POINTER);

+            return it; /* Always return a core grabbed device */

+        }

+    }

+

+    if (!client->clientPtr)

+    {

+        DeviceIntPtr it = inputInfo.devices;

+        while (it)

+        {

+            if (IsMaster(it) && it->spriteInfo->spriteOwner)

+            {

+                client->clientPtr = it;

+                break;

+            }

+            it = it->next;

+        }

+    }

+    return client->clientPtr;

+}

+

+/* PickKeyboard will pick an appropriate keyboard for the given client by

+ * searching the list of devices for the keyboard device that is paired with

+ * the client's pointer.

+ */

+DeviceIntPtr

+PickKeyboard(ClientPtr client)

+{

+    DeviceIntPtr ptr = PickPointer(client);

+    DeviceIntPtr kbd = GetMaster(ptr, MASTER_KEYBOARD);

+

+    if (!kbd)

+    {

+        ErrorF("[dix] ClientPointer not paired with a keyboard. This "

+                "is a bug.\n");

+    }

+

+    return kbd;

+}

+

+/* A client that has one or more core grabs does not get core events from

+ * devices it does not have a grab on. Legacy applications behave bad

+ * otherwise because they are not used to it and the events interfere.

+ * Only applies for core events.

+ *

+ * Return true if a core event from the device would interfere and should not

+ * be delivered.

+ */

+Bool

+IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent* event)

+{

+    DeviceIntPtr it = inputInfo.devices;

+

+    switch(event->u.u.type)

+    {

+        case KeyPress:

+        case KeyRelease:

+        case ButtonPress:

+        case ButtonRelease:

+        case MotionNotify:

+        case EnterNotify:

+        case LeaveNotify:

+            break;

+        default:

+            return FALSE;

+    }

+

+    if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))

+        return FALSE;

+

+    while(it)

+    {

+        if (it != dev)

+        {

+            if (it->deviceGrab.grab && SameClient(it->deviceGrab.grab, client)

+                        && !it->deviceGrab.fromPassiveGrab)

+            {

+                if ((IsPointerDevice(it) && IsPointerDevice(dev)) ||

+                        (IsKeyboardDevice(it) && IsKeyboardDevice(dev)))

+                    return TRUE;

+            }

+        }

+        it = it->next;

+    }

+

+    return FALSE;

+}

+