259 lines
7.3 KiB
C
259 lines
7.3 KiB
C
/* $Xorg: chgptr.c,v 1.4 2001/02/09 02:04:33 xorgcvs Exp $ */
|
|
|
|
/************************************************************
|
|
|
|
Copyright 1989, 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 1989 by Hewlett-Packard Company, Palo Alto, California.
|
|
|
|
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 Hewlett-Packard not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
HEWLETT-PACKARD 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.
|
|
|
|
********************************************************/
|
|
/* $XFree86: xc/programs/Xserver/Xi/chgptr.c,v 3.7 2001/12/14 19:58:55 dawes Exp $ */
|
|
|
|
/***********************************************************************
|
|
*
|
|
* Extension function to change the pointer device.
|
|
*
|
|
*/
|
|
|
|
#define NEED_EVENTS
|
|
#define NEED_REPLIES
|
|
#include "X.h" /* for inputstr.h */
|
|
#include "Xproto.h" /* Request macro */
|
|
#include "inputstr.h" /* DeviceIntPtr */
|
|
#include "XI.h"
|
|
#include "XIproto.h"
|
|
#include "XIstubs.h"
|
|
#include "windowstr.h" /* window structure */
|
|
#include "scrnintstr.h" /* screen structure */
|
|
|
|
#include "extnsionst.h"
|
|
#include "extinit.h" /* LookupDeviceIntRec */
|
|
|
|
#include "dixevents.h"
|
|
#include "exevents.h"
|
|
#include "exglobals.h"
|
|
|
|
#include "chgptr.h"
|
|
|
|
/***********************************************************************
|
|
*
|
|
* This procedure is invoked to swap the request bytes if the server and
|
|
* client have a different byte order.
|
|
*
|
|
*/
|
|
|
|
int
|
|
SProcXChangePointerDevice(client)
|
|
register ClientPtr client;
|
|
{
|
|
register char n;
|
|
|
|
REQUEST(xChangePointerDeviceReq);
|
|
swaps(&stuff->length, n);
|
|
REQUEST_SIZE_MATCH(xChangePointerDeviceReq);
|
|
return(ProcXChangePointerDevice(client));
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* This procedure changes the device used as the X pointer.
|
|
*
|
|
*/
|
|
|
|
int
|
|
ProcXChangePointerDevice (client)
|
|
register ClientPtr client;
|
|
{
|
|
DeviceIntPtr xptr = inputInfo.pointer;
|
|
DeviceIntPtr dev;
|
|
ValuatorClassPtr v;
|
|
xChangePointerDeviceReply rep;
|
|
changeDeviceNotify ev;
|
|
|
|
REQUEST(xChangePointerDeviceReq);
|
|
REQUEST_SIZE_MATCH(xChangePointerDeviceReq);
|
|
|
|
rep.repType = X_Reply;
|
|
rep.RepType = X_ChangePointerDevice;
|
|
rep.length = 0;
|
|
rep.sequenceNumber = client->sequence;
|
|
|
|
dev = LookupDeviceIntRec (stuff->deviceid);
|
|
if (dev == NULL)
|
|
{
|
|
rep.status = -1;
|
|
SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0,
|
|
BadDevice);
|
|
return Success;
|
|
}
|
|
|
|
v = dev->valuator;
|
|
if (v == NULL || v->numAxes < 2 ||
|
|
stuff->xaxis >= v->numAxes ||
|
|
stuff->yaxis >= v->numAxes)
|
|
{
|
|
rep.status = -1;
|
|
SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0, BadMatch);
|
|
return Success;
|
|
}
|
|
|
|
if (((dev->grab) && !SameClient(dev->grab, client)) ||
|
|
((xptr->grab) && !SameClient(xptr->grab, client)))
|
|
rep.status = AlreadyGrabbed;
|
|
else if ((dev->sync.frozen &&
|
|
dev->sync.other && !SameClient(dev->sync.other, client)) ||
|
|
(xptr->sync.frozen &&
|
|
xptr->sync.other && !SameClient(xptr->sync.other, client)))
|
|
rep.status = GrabFrozen;
|
|
else
|
|
{
|
|
if (ChangePointerDevice (
|
|
xptr, dev, stuff->xaxis, stuff->yaxis) != Success)
|
|
{
|
|
SendErrorToClient(client, IReqCode, X_ChangePointerDevice, 0,
|
|
BadDevice);
|
|
return Success;
|
|
}
|
|
if (dev->focus)
|
|
DeleteFocusClassDeviceStruct(dev);
|
|
if (!dev->button)
|
|
InitButtonClassDeviceStruct (dev, 0, NULL);
|
|
if (!dev->ptrfeed)
|
|
InitPtrFeedbackClassDeviceStruct(dev, (PtrCtrlProcPtr)NoopDDA);
|
|
RegisterOtherDevice (xptr);
|
|
RegisterPointerDevice (dev);
|
|
|
|
ev.type = ChangeDeviceNotify;
|
|
ev.deviceid = stuff->deviceid;
|
|
ev.time = currentTime.milliseconds;
|
|
ev.request = NewPointer;
|
|
|
|
SendEventToAllWindows (dev, ChangeDeviceNotifyMask, (xEvent *)&ev, 1);
|
|
SendMappingNotify (MappingPointer, 0, 0, client);
|
|
|
|
rep.status = 0;
|
|
}
|
|
|
|
WriteReplyToClient (client, sizeof (xChangePointerDeviceReply),
|
|
&rep);
|
|
return Success;
|
|
}
|
|
|
|
void
|
|
DeleteFocusClassDeviceStruct(dev)
|
|
DeviceIntPtr dev;
|
|
{
|
|
xfree(dev->focus->trace);
|
|
xfree(dev->focus);
|
|
dev->focus = NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* Send an event to interested clients in all windows on all screens.
|
|
*
|
|
*/
|
|
|
|
void
|
|
SendEventToAllWindows (dev, mask, ev, count)
|
|
DeviceIntPtr dev;
|
|
Mask mask;
|
|
xEvent *ev;
|
|
int count;
|
|
{
|
|
int i;
|
|
WindowPtr pWin, p1;
|
|
|
|
for (i=0; i<screenInfo.numScreens; i++)
|
|
{
|
|
pWin = WindowTable[i];
|
|
(void)DeliverEventsToWindow(pWin, ev, count, mask, NullGrab, dev->id);
|
|
p1 = pWin->firstChild;
|
|
FindInterestedChildren (dev, p1, mask, ev, count);
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* Walk through the window tree, finding all clients that want to know
|
|
* about the ChangeDeviceNotify Event.
|
|
*
|
|
*/
|
|
|
|
void
|
|
FindInterestedChildren (dev, p1, mask, ev, count)
|
|
DeviceIntPtr dev;
|
|
WindowPtr p1;
|
|
Mask mask;
|
|
xEvent *ev;
|
|
int count;
|
|
{
|
|
WindowPtr p2;
|
|
|
|
while (p1)
|
|
{
|
|
p2 = p1->firstChild;
|
|
(void)DeliverEventsToWindow(p1, ev, count, mask, NullGrab, dev->id);
|
|
FindInterestedChildren (dev, p2, mask, ev, count);
|
|
p1 = p1->nextSib;
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* This procedure writes the reply for the XChangePointerDevice
|
|
* function, if the client and server have a different byte ordering.
|
|
*
|
|
*/
|
|
|
|
void
|
|
SRepXChangePointerDevice (client, size, rep)
|
|
ClientPtr client;
|
|
int size;
|
|
xChangePointerDeviceReply *rep;
|
|
{
|
|
register char n;
|
|
|
|
swaps(&rep->sequenceNumber, n);
|
|
swapl(&rep->length, n);
|
|
WriteToClient(client, size, (char *)rep);
|
|
}
|