xisetclientpointer.c revision 7e31ba66 
1/*
2 * Copyright 2007-2008 Peter Hutterer
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Peter Hutterer, University of South Australia, NICTA
24 */
25
26/***********************************************************************
27 *
28 * Request to set the client pointer for the owner of the given window.
29 * All subsequent calls that are ambiguous will choose the client pointer as
30 * default value.
31 */
32
33#ifdef HAVE_DIX_CONFIG_H
34#include <dix-config.h>
35#endif
36
37#include <X11/X.h>              /* for inputstr.h    */
38#include <X11/Xproto.h>         /* Request macro     */
39#include "inputstr.h"           /* DeviceIntPtr      */
40#include "windowstr.h"          /* window structure  */
41#include "scrnintstr.h"         /* screen structure  */
42#include <X11/extensions/XI.h>
43#include <X11/extensions/XI2proto.h>
44#include "extnsionst.h"
45#include "exevents.h"
46#include "exglobals.h"
47
48#include "xisetclientpointer.h"
49
50int _X_COLD
51SProcXISetClientPointer(ClientPtr client)
52{
53    REQUEST(xXISetClientPointerReq);
54    REQUEST_SIZE_MATCH(xXISetClientPointerReq);
55
56    swaps(&stuff->length);
57    swapl(&stuff->win);
58    swaps(&stuff->deviceid);
59    return (ProcXISetClientPointer(client));
60}
61
62int
63ProcXISetClientPointer(ClientPtr client)
64{
65    DeviceIntPtr pDev;
66    ClientPtr targetClient;
67    int rc;
68
69    REQUEST(xXISetClientPointerReq);
70    REQUEST_SIZE_MATCH(xXISetClientPointerReq);
71
72    rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixManageAccess);
73    if (rc != Success) {
74        client->errorValue = stuff->deviceid;
75        return rc;
76    }
77
78    if (!IsMaster(pDev)) {
79        client->errorValue = stuff->deviceid;
80        return BadDevice;
81    }
82
83    pDev = GetMaster(pDev, MASTER_POINTER);
84
85    if (stuff->win != None) {
86        rc = dixLookupClient(&targetClient, stuff->win, client,
87                             DixManageAccess);
88
89        if (rc != Success)
90            return BadWindow;
91
92    }
93    else
94        targetClient = client;
95
96    rc = SetClientPointer(targetClient, pDev);
97    if (rc != Success) {
98        client->errorValue = stuff->deviceid;
99        return rc;
100    }
101
102    return Success;
103}
104