229 lines
6.4 KiB
C
229 lines
6.4 KiB
C
/* $Xorg: grabdev.c,v 1.4 2001/02/09 02:04:34 xorgcvs Exp $ */
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/************************************************************
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Hewlett-Packard not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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********************************************************/
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/* $XFree86: xc/programs/Xserver/Xi/grabdev.c,v 3.3 2001/12/14 19:58:57 dawes Exp $ */
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/***********************************************************************
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*
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* Extension function to grab an extension device.
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*
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*/
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#define NEED_EVENTS
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#define NEED_REPLIES
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#include "X.h" /* for inputstr.h */
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#include "Xproto.h" /* Request macro */
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#include "inputstr.h" /* DeviceIntPtr */
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#include "windowstr.h" /* window structure */
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#include "XI.h"
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#include "XIproto.h"
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#include "extnsionst.h"
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#include "extinit.h" /* LookupDeviceIntRec */
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#include "exglobals.h"
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#include "dixevents.h" /* GrabDevice */
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#include "grabdev.h"
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extern XExtEventInfo EventInfo[];
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extern int ExtEventIndex;
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/***********************************************************************
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*
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* Swap the request if the requestor has a different byte order than us.
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*
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*/
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int
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SProcXGrabDevice(client)
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register ClientPtr client;
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{
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register char n;
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register long *p;
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register int i;
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REQUEST(xGrabDeviceReq);
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swaps(&stuff->length, n);
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REQUEST_AT_LEAST_SIZE(xGrabDeviceReq);
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swapl(&stuff->grabWindow, n);
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swapl(&stuff->time, n);
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swaps(&stuff->event_count, n);
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p = (long *) &stuff[1];
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for (i=0; i<stuff->event_count; i++)
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{
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swapl(p, n);
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p++;
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}
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return(ProcXGrabDevice(client));
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}
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/***********************************************************************
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*
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* Grab an extension device.
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*
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*/
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int
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ProcXGrabDevice(client)
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ClientPtr client;
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{
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int error;
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xGrabDeviceReply rep;
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DeviceIntPtr dev;
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struct tmask tmp[EMASKSIZE];
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REQUEST(xGrabDeviceReq);
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REQUEST_AT_LEAST_SIZE(xGrabDeviceReq);
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if (stuff->length !=(sizeof(xGrabDeviceReq)>>2) + stuff->event_count)
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{
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SendErrorToClient (client, IReqCode, X_GrabDevice, 0, BadLength);
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return Success;
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}
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rep.repType = X_Reply;
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rep.RepType = X_GrabDevice;
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rep.sequenceNumber = client->sequence;
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rep.length = 0;
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dev = LookupDeviceIntRec (stuff->deviceid);
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if (dev == NULL)
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{
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SendErrorToClient(client, IReqCode, X_GrabDevice, 0, BadDevice);
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return Success;
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}
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if (CreateMaskFromList (client, (XEventClass *)&stuff[1],
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stuff->event_count, tmp, dev, X_GrabDevice) != Success)
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return Success;
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error = GrabDevice (client, dev, stuff->this_device_mode,
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stuff->other_devices_mode, stuff->grabWindow, stuff->ownerEvents,
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stuff->time, tmp[stuff->deviceid].mask, &rep.status);
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if (error != Success)
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{
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SendErrorToClient(client, IReqCode, X_GrabDevice, 0, error);
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return Success;
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}
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WriteReplyToClient(client, sizeof(xGrabDeviceReply), &rep);
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return Success;
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}
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/***********************************************************************
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*
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* This procedure creates an event mask from a list of XEventClasses.
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*
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*/
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int
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CreateMaskFromList (client, list, count, mask, dev, req)
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ClientPtr client;
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XEventClass *list;
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int count;
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struct tmask mask[];
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DeviceIntPtr dev;
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int req;
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{
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int i,j;
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int device;
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DeviceIntPtr tdev;
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for (i=0; i<EMASKSIZE; i++)
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{
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mask[i].mask = 0;
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mask[i].dev = NULL;
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}
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for (i=0; i<count; i++, list++)
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{
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device = *list >> 8;
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if (device > 255)
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{
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SendErrorToClient(client, IReqCode, req, 0, BadClass);
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return BadClass;
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}
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tdev = LookupDeviceIntRec (device);
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if (tdev==NULL || (dev != NULL && tdev != dev))
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{
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SendErrorToClient(client, IReqCode, req, 0, BadClass);
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return BadClass;
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}
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for (j=0; j<ExtEventIndex; j++)
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if (EventInfo[j].type == (*list & 0xff))
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{
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mask[device].mask |= EventInfo[j].mask;
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mask[device].dev = (Pointer) tdev;
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break;
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}
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}
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return Success;
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}
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/***********************************************************************
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*
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* This procedure writes the reply for the XGrabDevice function,
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* if the client and server have a different byte ordering.
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*
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*/
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void
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SRepXGrabDevice (client, size, rep)
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ClientPtr client;
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int size;
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xGrabDeviceReply *rep;
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{
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register char n;
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swaps(&rep->sequenceNumber, n);
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swapl(&rep->length, n);
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WriteToClient(client, size, (char *)rep);
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}
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