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Xext: purge XGE event masks.

Browse Source 
The masks were originally designed to generically handle event masks for
extensions. Since all that is in-server anyway, it's much better writing
custom event masks for those extensions that need it and not providing a
unified mechanism.
XI2 needs more than the current implementation, which is already too complex
for most other extensions. good riddance.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2009-01-15 17:16:22 +10:00
parent 6fe4c28bf4
commit 445daa62e7
12 changed files with 60 additions and 685 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

187
Xext/geext.c
View File

@ -58,7 +58,6 @@ static const int version_requests[] = {
/* Forward declarations */
static void SGEGenericEvent(xEvent* from, xEvent* to);
static void GERecalculateWinMask(WindowPtr pWin);
#define NUM_VERSION_REQUESTS (sizeof (version_requests) / sizeof (version_requests[0]))
@ -217,43 +216,6 @@ SGEGenericEvent(xEvent* from, xEvent* to)
GEExtensions[gefrom->extension & 0x7F].evswap(gefrom, geto);
}
/**
* Resource callback, invoked when the client disconnects and the associated
* GE masks must be destroyed.
*/
static int
GEClientGone(WindowPtr pWin, XID id)
{
GenericClientMasksPtr gclmask;
GenericMaskPtr gmask, prev = NULL;
if (!pWin || !pWin->optional)
return Success;
gclmask = pWin->optional->geMasks;
for (gmask = gclmask->geClients; gmask; gmask = gmask->next)
{
if (gmask->resource == id)
{
if (prev)
{
prev->next = gmask->next;
xfree(gmask);
} else {
gclmask->geClients = NULL;
CheckWindowOptionalNeed(pWin);
GERecalculateWinMask(pWin);
xfree(gmask);
}
return Success;
}
prev = gmask;
}
FatalError("Client not a GE client");
return BadImplementation;
}
/* Init extension, register at server.
* Since other extensions may rely on XGE (XInput does already), it is a good
* idea to init XGE first, before any other extension.
@ -277,9 +239,6 @@ GEExtensionInit(void)
GEErrorBase = extEntry->errorBase;
GEEventType = GEEventBase;
RT_GECLIENT = CreateNewResourceType((DeleteType)GEClientGone);
RegisterResourceName(RT_GECLIENT, "GECLIENT");
memset(GEExtensions, 0, sizeof(GEExtensions));
EventSwapVector[GenericEvent] = (EventSwapPtr) SGEGenericEvent;
@ -326,149 +285,3 @@ GEInitEvent(xGenericEvent* ev, int extension)
ev->length = 0;
}
/* Recalculates the summary mask for the window. */
static void
GERecalculateWinMask(WindowPtr pWin)
{
int i;
GenericMaskPtr it;
GenericClientMasksPtr evmasks;
if (!pWin->optional)
return;
evmasks = pWin->optional->geMasks;
for (i = 0; i < MAXEXTENSIONS; i++)
{
evmasks->eventMasks[i] = 0;
}
it = pWin->optional->geMasks->geClients;
while(it)
{
for (i = 0; i < MAXEXTENSIONS; i++)
{
evmasks->eventMasks[i] |= it->eventMask[i];
}
it = it->next;
}
}
/* Set generic event mask for given window. */
void
GEWindowSetMask(ClientPtr pClient, DeviceIntPtr pDev,
WindowPtr pWin, int extension, Mask mask)
{
GenericMaskPtr cli;
extension = (extension & 0x7F);
if (extension > MAXEXTENSIONS)
{
ErrorF("Invalid extension number.\n");
return;
}
if (!pWin->optional && !MakeWindowOptional(pWin))
{
ErrorF("GE: Could not make window optional.\n");
return;
}
if (mask)
{
GenericClientMasksPtr evmasks = pWin->optional->geMasks;
/* check for existing client */
cli = evmasks->geClients;
while(cli)
{
if (rClient(cli) == pClient && cli->dev == pDev)
break;
cli = cli->next;
}
if (!cli)
{
/* new client and/or new device */
cli = (GenericMaskPtr)xcalloc(1, sizeof(GenericMaskRec));
if (!cli)
{
ErrorF("GE: Insufficient memory to alloc client.\n");
return;
}
cli->next = evmasks->geClients;
cli->resource = FakeClientID(pClient->index);
cli->dev = pDev;
evmasks->geClients = cli;
AddResource(cli->resource, RT_GECLIENT, (pointer)pWin);
}
cli->eventMask[extension] = mask;
} else
{
/* remove client. */
cli = pWin->optional->geMasks->geClients;
if (rClient(cli) == pClient && cli->dev == pDev)
{
pWin->optional->geMasks->geClients = cli->next;
xfree(cli);
} else
{
GenericMaskPtr prev = cli;
cli = cli->next;
while(cli)
{
if (rClient(cli) == pClient && cli->dev == pDev)
{
prev->next = cli->next;
xfree(cli);
break;
}
prev = cli;
cli = cli->next;
}
}
if (!cli)
return;
}
GERecalculateWinMask(pWin);
}
/**
* Return TRUE if the mask for the given device is set.
* @param pWin Window the event may be delivered to.
* @param pDev Device the device originating the event. May be NULL.
* @param extension Extension ID
* @param mask Event mask
*/
BOOL
GEDeviceMaskIsSet(WindowPtr pWin, DeviceIntPtr pDev,
int extension, Mask mask)
{
GenericMaskPtr gemask;
if (!pWin->optional || !pWin->optional->geMasks)
return FALSE;
extension &= 0x7F;
if (!pWin->optional->geMasks->eventMasks[extension] & mask)
return FALSE;
gemask = pWin->optional->geMasks->geClients;
while(gemask)
{
if ((!gemask->dev || gemask->dev == pDev) &&
(gemask->eventMask[extension] & mask))
return TRUE;
gemask = gemask->next;
}
return FALSE;
}

21
Xext/geext.h
View File

@ -34,22 +34,6 @@ from the author.
#define _GEEXT_H_
#include <X11/extensions/geproto.h>
/**
* This struct is used both in the window and by grabs to determine the event
* mask for a client.
* A window will have a linked list of these structs, with one entry per
* client per device, null-terminated.
* A grab has only one instance of this struct.
*/
typedef struct _GenericMaskRec {
struct _GenericMaskRec* next;
XID resource; /* id for the resource manager */
DeviceIntPtr dev;
Mask eventMask[MAXEXTENSIONS]; /* one mask per extension */
} GenericMaskRec, *GenericMaskPtr;
/* Struct to keep information about registered extensions
*
* evswap ... use to swap event fields for different byte ordered clients.
@ -96,9 +80,6 @@ extern _X_EXPORT GEExtension GEExtensions[MAXEXTENSIONS];
/* Interface for other extensions */
extern _X_EXPORT void GEWindowSetMask(ClientPtr pClient, DeviceIntPtr pDev,
WindowPtr pWin, int extension, Mask mask);
extern _X_EXPORT void GERegisterExtension(
int extension,
void (*ev_dispatch)(xGenericEvent* from, xGenericEvent* to),
@ -107,8 +88,6 @@ extern _X_EXPORT void GERegisterExtension(
);
extern _X_EXPORT void GEInitEvent(xGenericEvent* ev, int extension);
extern _X_EXPORT BOOL GEDeviceMaskIsSet(WindowPtr pWin, DeviceIntPtr pDev,
int extension, Mask mask);
extern _X_EXPORT void GEExtensionInit(void);

1
Xi/exevents.c
View File

@ -1787,7 +1787,6 @@ CheckDeviceGrabAndHintWindow(WindowPtr pWin, int type,
tempGrab.pointerMode = GrabModeAsync;
tempGrab.confineTo = NullWindow;
tempGrab.cursor = NullCursor;
tempGrab.genericMasks = NULL;
tempGrab.next = NULL;
(*dev->deviceGrab.ActivateGrab) (dev, &tempGrab, currentTime, TRUE);
}

116
Xi/extgrbdev.c
View File

@ -86,121 +86,7 @@ SProcXExtendedGrabDevice(ClientPtr client)
int
ProcXExtendedGrabDevice(ClientPtr client)
{
xExtendedGrabDeviceReply rep;
DeviceIntPtr dev;
int rc = Success,
errval = 0,
i;
WindowPtr grab_window,
confineTo = 0;
CursorPtr cursor = NULL;
struct tmask tmp[EMASKSIZE];
TimeStamp time;
XGenericEventMask* xgeMask;
GenericMaskPtr gemasks = NULL;
REQUEST(xExtendedGrabDeviceReq);
REQUEST_AT_LEAST_SIZE(xExtendedGrabDeviceReq);
rep.repType = X_Reply;
rep.RepType = X_ExtendedGrabDevice;
rep.sequenceNumber = client->sequence;
rep.length = 0;
if (stuff->length != (sizeof(xExtendedGrabDeviceReq) >> 2) +
stuff->event_count + 2 * stuff->generic_event_count)
{
errval = 0;
rc = BadLength;
goto cleanup;
}
rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
if (rc != Success) {
goto cleanup;
}
rc = dixLookupWindow(&grab_window,
stuff->grab_window,
client,
DixReadAccess);
if (rc != Success)
{
errval = stuff->grab_window;
goto cleanup;
}
if (stuff->confine_to)
{
rc = dixLookupWindow(&confineTo,
stuff->confine_to,
client,
DixReadAccess);
if (rc != Success)
{
errval = stuff->confine_to;
goto cleanup;
}
}
if (stuff->cursor)
{
cursor = (CursorPtr)SecurityLookupIDByType(client,
stuff->cursor,
RT_CURSOR,
DixReadAccess);
if (!cursor)
{
errval = stuff->cursor;
rc = BadCursor;
goto cleanup;
}
}
if (CreateMaskFromList(client,
(XEventClass*)&stuff[1],
stuff->event_count,
tmp,
dev,
X_GrabDevice) != Success)
return Success;
time = ClientTimeToServerTime(stuff->time);
if (stuff->generic_event_count)
{
xgeMask =
(XGenericEventMask*)(((XEventClass*)&stuff[1]) + stuff->event_count);
gemasks = xcalloc(1, sizeof(GenericMaskRec));
gemasks->resource = FakeClientID(client->index);
gemasks->next = NULL;
gemasks->eventMask[xgeMask->extension & 0x7F] = xgeMask->evmask;
xgeMask++;
for (i = 1; i < stuff->generic_event_count; i++, xgeMask++)
gemasks->eventMask[xgeMask->extension & 0x7F]= xgeMask->evmask;
}
rep.status = ExtGrabDevice(client, dev, stuff->device_mode,
grab_window, confineTo, time,
stuff->owner_events, cursor,
tmp[stuff->deviceid].mask,
gemasks);
cleanup:
if (gemasks)
xfree(gemasks);
if (rc == Success)
{
WriteReplyToClient(client, sizeof(xGrabDeviceReply), &rep);
}
else
{
return rc;
}
return Success;
return BadRequest;
}
void

51
Xi/extinit.c
View File

@ -154,16 +154,6 @@ const Mask XIAllMasks = (1L << 21) - 1;
int ExtEventIndex;
Mask ExtExclusiveMasks[EMASKSIZE];
/**
* Filters for various generic events.
* Evtype is index, mask is value at index.
*/
static Mask xi_filters[] = {
XI_DeviceHierarchyChangedMask,
XI_DeviceClassesChangedMask,
};
static struct dev_type
{
Atom type;
@ -671,6 +661,12 @@ SDeviceClassesChangedEvent(deviceClassesChangedEvent* from,
}
}
/** Event swapping function for XI2 events. */
static void
XI2EventSwap(xGenericEvent *from, xGenericEvent *to)
{
}
/**************************************************************************
*
* Allow the specified event to have its propagation suppressed.
@ -1034,36 +1030,6 @@ SEventIDispatch(xEvent * from, xEvent * to)
}
}
/****************************************************************
*
* EventSwap for generic events coming from the GE extension.
*/
static void
XIGEEventSwap(xGenericEvent* from, xGenericEvent* to)
{
int n;
swaps(&from->sequenceNumber, n);
switch(from->evtype)
{
case XI_DeviceClassesChangedNotify:
SDeviceClassesChangedEvent((deviceClassesChangedEvent*)from,
(deviceClassesChangedEvent*)to);
break;
}
}
/**
* EventFill to fill various fields for events before they are delivered to
* the client.
*/
static void
XIGEEventFill(xGenericEvent* ev, DeviceIntPtr pDev,
WindowPtr pWin, GrabPtr grab)
{
}
/**********************************************************************
*
* IExtensionInit - initialize the input extension.
@ -1117,10 +1083,9 @@ XInputExtensionInit(void)
EventSwapVector[DeviceEnterNotify] = SEventIDispatch;
EventSwapVector[DeviceLeaveNotify] = SEventIDispatch;
/* init GE events */
GERegisterExtension(IReqCode, XIGEEventSwap, XIGEEventFill);
SetGenericFilter(IReqCode, xi_filters);
GERegisterExtension(IReqCode, XI2EventSwap, NULL);
} else {
FatalError("IExtensionInit: AddExtensions failed\n");
}
}

2
Xi/xiselev.c
View File

@ -72,7 +72,7 @@ ProcXiSelectEvent(ClientPtr client)
return rc;
}
GEWindowSetMask(client, pDev, pWin, IReqCode, stuff->mask);
/* XXX: THIS FUNCTION IS NOW DYSFUNCTIONAL */
return Success;
}

307
dix/events.c
View File

@ -396,13 +396,6 @@ static Mask filters[MAXDEVICES][128] = {
}};
/**
* same principle as filters, but one set of filters for each extension.
* The extension is responsible for setting the filters by calling
* SetGenericFilter().
*/
static Mask* generic_filters[MAXEXTENSIONS];
static CARD8 criticalEvents[32] =
{
0x7c, 0x30, 0x40 /* key, button, expose, and configure events */
@ -1466,13 +1459,6 @@ DeactivatePointerGrab(DeviceIntPtr mouse)
mouse->deviceGrab.sync.state = NOT_GRABBED;
mouse->deviceGrab.fromPassiveGrab = FALSE;
/* make sure the potential XGE event mask is freed too*/
if (grab->genericMasks)
{
xfree(grab->genericMasks);
grab->genericMasks = NULL;
}
for (dev = inputInfo.devices; dev; dev = dev->next)
{
if (dev->deviceGrab.sync.other == grab)
@ -1550,11 +1536,6 @@ DeactivateKeyboardGrab(DeviceIntPtr keybd)
keybd->deviceGrab.grab = NullGrab;
keybd->deviceGrab.sync.state = NOT_GRABBED;
keybd->deviceGrab.fromPassiveGrab = FALSE;
if (grab->genericMasks)
{
xfree(grab->genericMasks);
grab->genericMasks = NULL;
}
for (dev = inputInfo.devices; dev; dev = dev->next)
{
@ -1937,43 +1918,6 @@ DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
}
if (filter != CantBeFiltered)
{
/* Handle generic events */
if (type == GenericEvent)
{
GenericMaskPtr gmask;
/* We don't do more than one GenericEvent at a time. */
if (count > 1)
{
ErrorF("[dix] Do not send more than one GenericEvent at a time!\n");
return 0;
}
/* if we get here, filter should be set to the GE specific mask.
check if any client wants it */
if (!GEDeviceMaskIsSet(pWin, pDev, GEEXT(pEvents), filter))
return 0;
/* run through all clients, deliver event */
for (gmask = GECLIENT(pWin); gmask; gmask = gmask->next)
{
if (gmask->eventMask[GEEXTIDX(pEvents)] & filter)
{
if (XaceHook(XACE_RECEIVE_ACCESS, rClient(gmask), pWin,
pEvents, count))
/* do nothing */;
else if (TryClientEvents(rClient(gmask), pDev,
pEvents, count,
gmask->eventMask[GEEXTIDX(pEvents)],
filter, grab) > 0)
{
deliveries++;
} else
nondeliveries--;
}
}
}
else {
/* Traditional event */
if (type & EXTENSION_EVENT_BASE)
{
OtherInputMasks *inputMasks;
@ -2010,7 +1954,6 @@ DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
nondeliveries--;
}
}
}
}
/*
* Note that since core events are delivered first, an implicit grab may
@ -2039,21 +1982,6 @@ DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
inputMasks = wOtherInputMasks(pWin);
tempGrab.deviceMask = (inputMasks) ? inputMasks->inputEvents[pDev->id]: 0;
/* get the XGE event mask. */
tempGrab.genericMasks = NULL;
if (pWin->optional && pWin->optional->geMasks)
{
GenericClientMasksPtr gemasks = pWin->optional->geMasks;
GenericMaskPtr geclient = gemasks->geClients;
while(geclient && rClient(geclient) != client)
geclient = geclient->next;
if (geclient)
{
tempGrab.genericMasks = xcalloc(1, sizeof(GenericMaskRec));
*tempGrab.genericMasks = *geclient;
tempGrab.genericMasks->next = NULL;
}
}
(*pDev->deviceGrab.ActivateGrab)(pDev, &tempGrab,
currentTime, TRUE | ImplicitGrabMask);
}
@ -2269,39 +2197,6 @@ DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab,
type = xE->u.u.type;
filter = filters[dev->id][type];
/* handle generic events */
/* XXX: Generic events aren't quite handled correctly yet. They should
* eventually fit in with the rest of the stuff
*/
if (type == GenericEvent)
{
WindowPtr win = pWin;
xGenericEvent* ge = (xGenericEvent*)xE;
if (count > 1)
{
ErrorF("[dix] Do not send more than one GenericEvent at a time!\n");
deliveries = 0;
goto unwind;
}
filter = generic_filters[GEEXTIDX(xE)][ge->evtype];
while(win)
{
if (GEDeviceMaskIsSet(win, dev, GEEXT(xE), filter))
{
if (GEExtensions[GEEXTIDX(xE)].evfill)
GEExtensions[GEEXTIDX(xE)].evfill(ge, dev, win, grab);
deliveries = DeliverEventsToWindow(dev, win, xE, count,
filter, grab, 0);
if (deliveries > 0)
goto unwind;
}
win = win->parent;
}
}
while (pWin && type != GenericEvent)
{
/* First try XI event delivery */
@ -3537,6 +3432,7 @@ DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr 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
@ -3552,80 +3448,63 @@ DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
} else if (count == 0) /* no XI/Core event for you */
goto unwind;
if (xi->u.u.type == GenericEvent)
mask = grab->eventMask;
sendCore = (thisDev->isMaster && thisDev->coreEvents);
/* try core event */
if (sendCore && grab->coreGrab)
{
/* find evmask for event's extension */
xGenericEvent* ge = ((xGenericEvent*)xi);
GenericMaskPtr gemask = grab->genericMasks;
xEvent core;
if (!gemask || !gemask->eventMask[GEEXTIDX(ge)])
goto unwind;
if (GEEventFill(xi))
GEEventFill(xi)(ge, thisDev, grab->window, grab);
deliveries = TryClientEvents(rClient(grab), thisDev, xi,
count, gemask->eventMask[GEEXTIDX(ge)],
generic_filters[GEEXTIDX(ge)][ge->evtype],
grab);
} else
{
Mask mask = grab->eventMask;
sendCore = (thisDev->isMaster && thisDev->coreEvents);
/* try core event */
if (sendCore && grab->coreGrab)
rc = EventToCore(event, &core);
if (rc != Success && rc != BadMatch)
{
xEvent core;
rc = EventToCore(event, &core);
if (rc != Success && rc != BadMatch)
{
ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");
goto unwind;
}
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,
filters[thisDev->id][core.u.u.type],
grab);
}
ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");
goto unwind;
}
if (!deliveries)
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))
{
/* try XI event */
if (grabinfo->fromPassiveGrab &&
grabinfo->implicitGrab)
mask = grab->deviceMask;
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,
filters[thisDev->id][xi->u.u.type],
grab);
}
deliveries = TryClientEvents(rClient(grab), thisDev,
&core, 1, mask,
filters[thisDev->id][core.u.u.type],
grab);
}
}
if (!deliveries)
{
/* try XI event */
if (grabinfo->fromPassiveGrab &&
grabinfo->implicitGrab)
mask = grab->deviceMask;
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,
filters[thisDev->id][xi->u.u.type],
grab);
}
}
if (deliveries && (event->u.any.type == ET_Motion))
thisDev->valuator->motionHintWindow = grab->window;
}
@ -4377,7 +4256,6 @@ ProcGrabPointer(ClientPtr client)
tempGrab.pointerMode = stuff->pointerMode;
tempGrab.device = device;
tempGrab.coreGrab = True;
tempGrab.genericMasks = NULL;
(*device->deviceGrab.ActivateGrab)(device, &tempGrab, time, FALSE);
if (oldCursor)
FreeCursor (oldCursor, (Cursor)0);
@ -4554,7 +4432,6 @@ GrabDevice(ClientPtr client, DeviceIntPtr dev,
tempGrab.device = dev;
tempGrab.cursor = NULL;
tempGrab.coreGrab = coreGrab;
tempGrab.genericMasks = NULL;
(*grabInfo->ActivateGrab)(dev, &tempGrab, time, FALSE);
*status = GrabSuccess;
@ -5569,87 +5446,3 @@ IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent* event)
return FALSE;
}
/**
* Set the filters for a extension.
* The filters array needs to contain the Masks that are applicable for each
* event type for the given extension.
* e.g. if generic event type 2 should be let through for windows with
* MyExampleMask set, make sure that filters[2] == MyExampleMask.
*/
void
SetGenericFilter(int extension, Mask* filters)
{
generic_filters[extension & 0x7f] = filters;
}
/**
* Grab a device for XI events and XGE events.
* grabmode is used to ungrab a device.
*/
int
ExtGrabDevice(ClientPtr client,
DeviceIntPtr dev,
int device_mode,
WindowPtr grabWindow,
WindowPtr confineTo,
TimeStamp ctime,
Bool ownerEvents,
CursorPtr cursor,
Mask xi_mask,
GenericMaskPtr ge_masks)
{
GrabInfoPtr grabinfo;
GrabRec newGrab;
UpdateCurrentTime();
grabinfo = &dev->deviceGrab;
if (grabinfo->grab && !SameClient(grabinfo->grab, client))
return AlreadyGrabbed;
if (!grabWindow->realized)
return GrabNotViewable;
if ((CompareTimeStamps(ctime, currentTime) == LATER) ||
(CompareTimeStamps(ctime, grabinfo->grabTime) == EARLIER))
return GrabInvalidTime;
if (grabinfo->sync.frozen && grabinfo->sync.other &&
!SameClient(grabinfo->sync.other, client))
return GrabFrozen;
memset(&newGrab, 0, sizeof(GrabRec));
newGrab.window = grabWindow;
newGrab.resource = client->clientAsMask;
newGrab.ownerEvents = ownerEvents;
newGrab.device = dev;
newGrab.cursor = cursor;
newGrab.confineTo = confineTo;
newGrab.eventMask = xi_mask;
newGrab.genericMasks = NULL;
newGrab.next = NULL;
if (ge_masks)
{
newGrab.genericMasks = xcalloc(1, sizeof(GenericMaskRec));
*newGrab.genericMasks = *ge_masks;
newGrab.genericMasks->next = NULL;
}
if (IsPointerDevice(dev))
{
newGrab.keyboardMode = GrabModeAsync;
newGrab.pointerMode = device_mode;
} else
{
newGrab.keyboardMode = device_mode;
newGrab.pointerMode = GrabModeAsync;
}
(*grabinfo->ActivateGrab)(dev, &newGrab, ctime, FALSE);
return GrabSuccess;
}

1
dix/grabs.c
View File

@ -104,7 +104,6 @@ CreateGrab(
grab->detail.pMask = NULL;
grab->confineTo = confineTo;
grab->cursor = cursor;
grab->genericMasks = NULL;
grab->next = NULL;
if (cursor)
cursor->refcnt++;

35
dix/window.c
View File

@ -403,13 +403,6 @@ CreateRootWindow(ScreenPtr pScreen)
pWin->optional->inputShape = NULL;
pWin->optional->inputMasks = NULL;
pWin->optional->deviceCursors = NULL;
pWin->optional->geMasks = (GenericClientMasksPtr)xcalloc(1, sizeof(GenericClientMasksRec));
if (!pWin->optional->geMasks)
{
xfree(pWin->optional);
return FALSE;
}
pWin->optional->colormap = pScreen->defColormap;
pWin->optional->visual = pScreen->rootVisual;
@ -792,8 +785,6 @@ CreateWindow(Window wid, WindowPtr pParent, int x, int y, unsigned w,
static void
DisposeWindowOptional (WindowPtr pWin)
{
GenericMaskPtr gmask = NULL, next = NULL;
if (!pWin->optional)
return;
/*
@ -824,17 +815,6 @@ DisposeWindowOptional (WindowPtr pWin)
pWin->optional->deviceCursors = NULL;
}
/* Remove generic event mask allocations */
if (pWin->optional->geMasks)
gmask = pWin->optional->geMasks->geClients;
while(gmask)
{
next = gmask->next;
xfree(gmask);
gmask = next;
}
xfree (pWin->optional->geMasks);
xfree (pWin->optional);
pWin->optional = NULL;
}
@ -3443,9 +3423,6 @@ CheckWindowOptionalNeed (WindowPtr w)
}
}
if (optional->geMasks != NULL)
return;
parentOptional = FindWindowWithOptional(w)->optional;
if (optional->visual != parentOptional->visual)
return;
@ -3489,18 +3466,6 @@ MakeWindowOptional (WindowPtr pWin)
optional->inputMasks = NULL;
optional->deviceCursors = NULL;
optional->geMasks = xalloc(sizeof(GenericClientMasksRec));
if (!optional->geMasks)
{
xfree(optional);
return FALSE;
} else {
int i;
optional->geMasks->geClients = 0;
for (i = 0; i < MAXEXTENSIONS; i++)
optional->geMasks->eventMasks[i] = 0;
}
parentOptional = FindWindowWithOptional(pWin)->optional;
optional->visual = parentOptional->visual;
if (!pWin->cursorIsNone)

12
include/dix.h
View File

@ -611,16 +611,4 @@ extern _X_EXPORT ClientPtr LookupClient(
XID id,
ClientPtr client);
/* GE stuff */
extern _X_EXPORT void SetGenericFilter(int extension, Mask* filters);
extern _X_EXPORT int ExtGrabDevice(ClientPtr client,
DeviceIntPtr dev,
int device_mode,
WindowPtr grabWindow,
WindowPtr confineTo,
TimeStamp ctime,
Bool ownerEvents,
CursorPtr cursor,
Mask xi_mask,
GenericMaskPtr ge_masks);
#endif /* DIX_H */

1
include/inputstr.h
View File

@ -175,7 +175,6 @@ typedef struct _GrabRec {
CursorPtr cursor; /* always NULL for keyboards */
Mask eventMask;
Mask deviceMask;
GenericMaskPtr genericMasks;
} GrabRec;
typedef struct _KeyClassRec {

11
include/windowstr.h
View File

@ -79,16 +79,6 @@ typedef struct _DevCursorNode {
struct _DevCursorNode* next;
} DevCursNodeRec, *DevCursNodePtr, *DevCursorList;
/* Mask structure for GE extension as stored on the window.
* Allows one mask per extension.
* .eventMask - Summary mask for all clients, used for quick checking.
* .geClients - list of clients with their specific mask.
*/
typedef struct _GenericClientMasks {
Mask eventMasks[MAXEXTENSIONS];
GenericMaskPtr geClients;
} GenericClientMasksRec, *GenericClientMasksPtr;
typedef struct _WindowOpt {
VisualID visual; /* default: same as parent */
CursorPtr cursor; /* default: window.cursorNone */
@ -105,7 +95,6 @@ typedef struct _WindowOpt {
RegionPtr inputShape; /* default: NULL */
struct _OtherInputMasks *inputMasks; /* default: NULL */
DevCursorList deviceCursors; /* default: NULL */
struct _GenericClientMasks *geMasks; /* default: NULL */
} WindowOptRec, *WindowOptPtr;
#define BackgroundPixel 2L