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Diffstat (limited to 'Xi/closedev.c')
| -rw-r--r-- | Xi/closedev.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/Xi/closedev.c b/Xi/closedev.c new file mode 100644 index 000000000..66fb185cb --- /dev/null +++ b/Xi/closedev.c @@ -0,0 +1,185 @@ +/* $Xorg: closedev.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. + +********************************************************/ + +/*********************************************************************** + * + * Extension function to close an extension input device. + * + */ + +#define NEED_EVENTS +#define NEED_REPLIES +#include "X.h" /* for inputstr.h */ +#include "Xproto.h" /* Request macro */ +#include "inputstr.h" /* DeviceIntPtr */ +#include "windowstr.h" /* window structure */ +#include "scrnintstr.h" /* screen structure */ +#include "XI.h" +#include "XIproto.h" + +extern ScreenInfo screenInfo; +extern WindowPtr *WindowTable; +extern int IReqCode; +extern int BadDevice; +extern void (* ReplySwapVector[256]) (); +DeviceIntPtr LookupDeviceIntRec(); + +/*********************************************************************** + * + * This procedure closes an input device. + * + */ + +int +SProcXCloseDevice(client) + register ClientPtr client; + { + register char n; + + REQUEST(xCloseDeviceReq); + swaps(&stuff->length, n); + REQUEST_SIZE_MATCH(xCloseDeviceReq); + return(ProcXCloseDevice(client)); + } + +/*********************************************************************** + * + * This procedure closes an input device. + * + */ + +int +ProcXCloseDevice(client) + register ClientPtr client; + { + int i; + WindowPtr pWin, p1; + DeviceIntPtr d; + + REQUEST(xCloseDeviceReq); + REQUEST_SIZE_MATCH(xCloseDeviceReq); + + d = LookupDeviceIntRec (stuff->deviceid); + if (d == NULL) + { + SendErrorToClient(client, IReqCode, X_CloseDevice, 0, BadDevice); + return Success; + } + + if (d->grab && SameClient(d->grab, client)) + (*d->DeactivateGrab)(d); /* release active grab */ + + /* Remove event selections from all windows for events from this device + and selected by this client. + Delete passive grabs from all windows for this device. */ + + for (i=0; i<screenInfo.numScreens; i++) + { + pWin = WindowTable[i]; + DeleteDeviceEvents (d, pWin, client); + p1 = pWin->firstChild; + DeleteEventsFromChildren (d, p1, client); + } + + CloseInputDevice (d, client); + return Success; + } + +/*********************************************************************** + * + * Walk througth the window tree, deleting event selections for this client + * from this device from all windows. + * + */ + +DeleteEventsFromChildren(dev, p1, client) + DeviceIntPtr dev; + WindowPtr p1; + ClientPtr client; + { + WindowPtr p2; + + while (p1) + { + p2 = p1->firstChild; + DeleteDeviceEvents (dev, p1, client); + DeleteEventsFromChildren(dev, p2, client); + p1 = p1->nextSib; + } + } + +/*********************************************************************** + * + * Clear out event selections and passive grabs from a window for the + * specified device. + * + */ + +DeleteDeviceEvents (dev, pWin, client) + DeviceIntPtr dev; + WindowPtr pWin; + ClientPtr client; + { + InputClientsPtr others; + OtherInputMasks *pOthers; + GrabPtr grab, next; + + if (pOthers=wOtherInputMasks(pWin)) + for (others=pOthers->inputClients; others; + others = others->next) + if (SameClient(others,client)) + others->mask[dev->id] = NoEventMask; + + for (grab = wPassiveGrabs(pWin); grab; grab=next) + { + next = grab->next; + if ((grab->device == dev) && + (client->clientAsMask == CLIENT_BITS(grab->resource))) + FreeResource (grab->resource, RT_NONE); + } + } |