xref: /OK3568_Linux_fs/external/xserver/Xi/ungrdev.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /************************************************************
2*4882a593Smuzhiyun 
3*4882a593Smuzhiyun Copyright 1989, 1998  The Open Group
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun Permission to use, copy, modify, distribute, and sell this software and its
6*4882a593Smuzhiyun documentation for any purpose is hereby granted without fee, provided that
7*4882a593Smuzhiyun the above copyright notice appear in all copies and that both that
8*4882a593Smuzhiyun copyright notice and this permission notice appear in supporting
9*4882a593Smuzhiyun documentation.
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun all copies or substantial portions of the Software.
13*4882a593Smuzhiyun 
14*4882a593Smuzhiyun THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17*4882a593Smuzhiyun OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18*4882a593Smuzhiyun AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19*4882a593Smuzhiyun CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun Except as contained in this notice, the name of The Open Group shall not be
22*4882a593Smuzhiyun used in advertising or otherwise to promote the sale, use or other dealings
23*4882a593Smuzhiyun in this Software without prior written authorization from The Open Group.
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun 			All Rights Reserved
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun Permission to use, copy, modify, and distribute this software and its
30*4882a593Smuzhiyun documentation for any purpose and without fee is hereby granted,
31*4882a593Smuzhiyun provided that the above copyright notice appear in all copies and that
32*4882a593Smuzhiyun both that copyright notice and this permission notice appear in
33*4882a593Smuzhiyun supporting documentation, and that the name of Hewlett-Packard not be
34*4882a593Smuzhiyun used in advertising or publicity pertaining to distribution of the
35*4882a593Smuzhiyun software without specific, written prior permission.
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38*4882a593Smuzhiyun ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39*4882a593Smuzhiyun HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40*4882a593Smuzhiyun ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41*4882a593Smuzhiyun WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42*4882a593Smuzhiyun ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43*4882a593Smuzhiyun SOFTWARE.
44*4882a593Smuzhiyun 
45*4882a593Smuzhiyun ********************************************************/
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun /***********************************************************************
48*4882a593Smuzhiyun  *
49*4882a593Smuzhiyun  * Request to release a grab of an extension device.
50*4882a593Smuzhiyun  *
51*4882a593Smuzhiyun  */
52*4882a593Smuzhiyun 
53*4882a593Smuzhiyun #ifdef HAVE_DIX_CONFIG_H
54*4882a593Smuzhiyun #include <dix-config.h>
55*4882a593Smuzhiyun #endif
56*4882a593Smuzhiyun 
57*4882a593Smuzhiyun #include "inputstr.h"           /* DeviceIntPtr      */
58*4882a593Smuzhiyun #include "windowstr.h"          /* window structure  */
59*4882a593Smuzhiyun #include <X11/extensions/XIproto.h>
60*4882a593Smuzhiyun #include "exglobals.h"
61*4882a593Smuzhiyun 
62*4882a593Smuzhiyun #include "ungrdev.h"
63*4882a593Smuzhiyun 
64*4882a593Smuzhiyun /***********************************************************************
65*4882a593Smuzhiyun  *
66*4882a593Smuzhiyun  * Handle requests from a client with a different byte order.
67*4882a593Smuzhiyun  *
68*4882a593Smuzhiyun  */
69*4882a593Smuzhiyun 
70*4882a593Smuzhiyun int _X_COLD
SProcXUngrabDevice(ClientPtr client)71*4882a593Smuzhiyun SProcXUngrabDevice(ClientPtr client)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun     REQUEST(xUngrabDeviceReq);
74*4882a593Smuzhiyun     swaps(&stuff->length);
75*4882a593Smuzhiyun     REQUEST_SIZE_MATCH(xUngrabDeviceReq);
76*4882a593Smuzhiyun     swapl(&stuff->time);
77*4882a593Smuzhiyun     return (ProcXUngrabDevice(client));
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun 
80*4882a593Smuzhiyun /***********************************************************************
81*4882a593Smuzhiyun  *
82*4882a593Smuzhiyun  * Release a grab of an extension device.
83*4882a593Smuzhiyun  *
84*4882a593Smuzhiyun  */
85*4882a593Smuzhiyun 
86*4882a593Smuzhiyun int
ProcXUngrabDevice(ClientPtr client)87*4882a593Smuzhiyun ProcXUngrabDevice(ClientPtr client)
88*4882a593Smuzhiyun {
89*4882a593Smuzhiyun     DeviceIntPtr dev;
90*4882a593Smuzhiyun     GrabPtr grab;
91*4882a593Smuzhiyun     TimeStamp time;
92*4882a593Smuzhiyun     int rc;
93*4882a593Smuzhiyun 
94*4882a593Smuzhiyun     REQUEST(xUngrabDeviceReq);
95*4882a593Smuzhiyun     REQUEST_SIZE_MATCH(xUngrabDeviceReq);
96*4882a593Smuzhiyun 
97*4882a593Smuzhiyun     rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
98*4882a593Smuzhiyun     if (rc != Success)
99*4882a593Smuzhiyun         return rc;
100*4882a593Smuzhiyun     grab = dev->deviceGrab.grab;
101*4882a593Smuzhiyun 
102*4882a593Smuzhiyun     time = ClientTimeToServerTime(stuff->time);
103*4882a593Smuzhiyun     if ((CompareTimeStamps(time, currentTime) != LATER) &&
104*4882a593Smuzhiyun         (CompareTimeStamps(time, dev->deviceGrab.grabTime) != EARLIER) &&
105*4882a593Smuzhiyun         (grab) && SameClient(grab, client) && grab->grabtype == XI)
106*4882a593Smuzhiyun         (*dev->deviceGrab.DeactivateGrab) (dev);
107*4882a593Smuzhiyun     return Success;
108*4882a593Smuzhiyun }
109