/* $Xorg: grabdev.c,v 1.4 2001/02/09 02:04:34 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/grabdev.c,v 3.2 2001/01/17 22:13:25 dawes Exp $ */ /*********************************************************************** * * Extension function to grab an extension device. * */ #define NEED_EVENTS #define NEED_REPLIES #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <nx-X11/X.h> /* for inputstr.h */ #include <nx-X11/Xproto.h> /* Request macro */ #include "inputstr.h" /* DeviceIntPtr */ #include "windowstr.h" /* window structure */ #include <nx-X11/extensions/XI.h> #include <nx-X11/extensions/XIproto.h> #include "extnsionst.h" #include "extinit.h" /* LookupDeviceIntRec */ #include "exglobals.h" #include "dixevents.h" /* GrabDevice */ #include "grabdev.h" extern XExtEventInfo EventInfo[]; extern int ExtEventIndex; /*********************************************************************** * * Swap the request if the requestor has a different byte order than us. * */ int SProcXGrabDevice(client) register ClientPtr client; { register char n; REQUEST(xGrabDeviceReq); swaps(&stuff->length, n); REQUEST_AT_LEAST_SIZE(xGrabDeviceReq); swapl(&stuff->grabWindow, n); swapl(&stuff->time, n); swaps(&stuff->event_count, n); if (stuff->length != (sizeof(xGrabDeviceReq) >> 2) + stuff->event_count) return BadLength; SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count); return(ProcXGrabDevice(client)); } /*********************************************************************** * * Grab an extension device. * */ int ProcXGrabDevice(client) ClientPtr client; { int error; xGrabDeviceReply rep; DeviceIntPtr dev; struct tmask tmp[EMASKSIZE]; REQUEST(xGrabDeviceReq); REQUEST_AT_LEAST_SIZE(xGrabDeviceReq); if (stuff->length !=(sizeof(xGrabDeviceReq)>>2) + stuff->event_count) { SendErrorToClient (client, IReqCode, X_GrabDevice, 0, BadLength); return Success; } rep.repType = X_Reply; rep.RepType = X_GrabDevice; rep.sequenceNumber = client->sequence; rep.length = 0; dev = LookupDeviceIntRec (stuff->deviceid); if (dev == NULL) { SendErrorToClient(client, IReqCode, X_GrabDevice, 0, BadDevice); return Success; } if (CreateMaskFromList (client, (XEventClass *)&stuff[1], stuff->event_count, tmp, dev, X_GrabDevice) != Success) return Success; error = GrabDevice (client, dev, stuff->this_device_mode, stuff->other_devices_mode, stuff->grabWindow, stuff->ownerEvents, stuff->time, tmp[stuff->deviceid].mask, &rep.status); if (error != Success) { SendErrorToClient(client, IReqCode, X_GrabDevice, 0, error); return Success; } WriteReplyToClient(client, sizeof(xGrabDeviceReply), &rep); return Success; } /*********************************************************************** * * This procedure creates an event mask from a list of XEventClasses. * */ int CreateMaskFromList (client, list, count, mask, dev, req) ClientPtr client; XEventClass *list; int count; struct tmask mask[]; DeviceIntPtr dev; int req; { int i,j; int device; DeviceIntPtr tdev; for (i=0; i<EMASKSIZE; i++) { mask[i].mask = 0; mask[i].dev = NULL; } for (i=0; i<count; i++, list++) { device = *list >> 8; if (device > 255) { SendErrorToClient(client, IReqCode, req, 0, BadClass); return BadClass; } tdev = LookupDeviceIntRec (device); if (tdev==NULL || (dev != NULL && tdev != dev)) { SendErrorToClient(client, IReqCode, req, 0, BadClass); return BadClass; } for (j=0; j<ExtEventIndex; j++) if (EventInfo[j].type == (*list & 0xff)) { mask[device].mask |= EventInfo[j].mask; mask[device].dev = (Pointer) tdev; break; } } return Success; } /*********************************************************************** * * This procedure writes the reply for the XGrabDevice function, * if the client and server have a different byte ordering. * */ void SRepXGrabDevice (client, size, rep) ClientPtr client; int size; xGrabDeviceReply *rep; { register char n; swaps(&rep->sequenceNumber, n); swapl(&rep->length, n); WriteToClient(client, size, (char *)rep); }