diff options
Diffstat (limited to 'xorg-server/Xi/closedev.c')
| -rw-r--r-- | xorg-server/Xi/closedev.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/xorg-server/Xi/closedev.c b/xorg-server/Xi/closedev.c new file mode 100644 index 000000000..94b7391fb --- /dev/null +++ b/xorg-server/Xi/closedev.c @@ -0,0 +1,169 @@ +/************************************************************ + +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 +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "inputstr.h" /* DeviceIntPtr */ +#include "windowstr.h" /* window structure */ +#include "scrnintstr.h" /* screen structure */ +#include <X11/extensions/XI.h> +#include <X11/extensions/XIproto.h> +#include "XIstubs.h" +#include "exglobals.h" + +#include "closedev.h" + +/*********************************************************************** + * + * This procedure closes an input device. + * + */ + +int +SProcXCloseDevice(ClientPtr client) +{ + char n; + + REQUEST(xCloseDeviceReq); + swaps(&stuff->length, n); + REQUEST_SIZE_MATCH(xCloseDeviceReq); + return (ProcXCloseDevice(client)); +} + +/*********************************************************************** + * + * Clear out event selections and passive grabs from a window for the + * specified device. + * + */ + +static void +DeleteDeviceEvents(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client) +{ + InputClientsPtr others; + OtherInputMasks *pOthers; + GrabPtr grab, next; + + if ((pOthers = wOtherInputMasks(pWin)) != 0) + 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); + } +} + +/*********************************************************************** + * + * Walk througth the window tree, deleting event selections for this client + * from this device from all windows. + * + */ + +static void +DeleteEventsFromChildren(DeviceIntPtr dev, WindowPtr p1, ClientPtr client) +{ + WindowPtr p2; + + while (p1) { + p2 = p1->firstChild; + DeleteDeviceEvents(dev, p1, client); + DeleteEventsFromChildren(dev, p2, client); + p1 = p1->nextSib; + } +} + +/*********************************************************************** + * + * This procedure closes an input device. + * + */ + +int +ProcXCloseDevice(ClientPtr client) +{ + int rc, i; + WindowPtr pWin, p1; + DeviceIntPtr d; + + REQUEST(xCloseDeviceReq); + REQUEST_SIZE_MATCH(xCloseDeviceReq); + + rc = dixLookupDevice(&d, stuff->deviceid, client, DixUseAccess); + if (rc != Success) + return rc; + + 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; +} |