grabdevk.c revision 35c4bbdf 
1/************************************************************
2
3Copyright 1989, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27			All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Hewlett-Packard not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45********************************************************/
46
47/***********************************************************************
48 *
49 * Extension function to grab a key on an extension device.
50 *
51 */
52
53#ifdef HAVE_DIX_CONFIG_H
54#include <dix-config.h>
55#endif
56
57#include "inputstr.h"           /* DeviceIntPtr      */
58#include "windowstr.h"          /* window structure  */
59#include <X11/extensions/XI.h>
60#include <X11/extensions/XIproto.h>
61#include "exevents.h"
62#include "exglobals.h"
63#include "xace.h"
64
65#include "grabdev.h"
66#include "grabdevk.h"
67
68/***********************************************************************
69 *
70 * Handle requests from clients with a different byte order.
71 *
72 */
73
74int
75SProcXGrabDeviceKey(ClientPtr client)
76{
77    REQUEST(xGrabDeviceKeyReq);
78    swaps(&stuff->length);
79    REQUEST_AT_LEAST_SIZE(xGrabDeviceKeyReq);
80    swapl(&stuff->grabWindow);
81    swaps(&stuff->modifiers);
82    swaps(&stuff->event_count);
83    REQUEST_FIXED_SIZE(xGrabDeviceKeyReq, stuff->event_count * sizeof(CARD32));
84    SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
85    return (ProcXGrabDeviceKey(client));
86}
87
88/***********************************************************************
89 *
90 * Grab a key on an extension device.
91 *
92 */
93
94int
95ProcXGrabDeviceKey(ClientPtr client)
96{
97    int ret;
98    DeviceIntPtr dev;
99    DeviceIntPtr mdev;
100    XEventClass *class;
101    struct tmask tmp[EMASKSIZE];
102    GrabParameters param;
103    GrabMask mask;
104
105    REQUEST(xGrabDeviceKeyReq);
106    REQUEST_AT_LEAST_SIZE(xGrabDeviceKeyReq);
107
108    if (stuff->length !=
109        bytes_to_int32(sizeof(xGrabDeviceKeyReq)) + stuff->event_count)
110        return BadLength;
111
112    ret = dixLookupDevice(&dev, stuff->grabbed_device, client, DixGrabAccess);
113    if (ret != Success)
114        return ret;
115
116    if (stuff->modifier_device != UseXKeyboard) {
117        ret = dixLookupDevice(&mdev, stuff->modifier_device, client,
118                              DixUseAccess);
119        if (ret != Success)
120            return ret;
121        if (mdev->key == NULL)
122            return BadMatch;
123    }
124    else {
125        mdev = PickKeyboard(client);
126        ret = XaceHook(XACE_DEVICE_ACCESS, client, mdev, DixUseAccess);
127        if (ret != Success)
128            return ret;
129    }
130
131    class = (XEventClass *) (&stuff[1]);        /* first word of values */
132
133    if ((ret = CreateMaskFromList(client, class,
134                                  stuff->event_count, tmp, dev,
135                                  X_GrabDeviceKey)) != Success)
136        return ret;
137
138    param = (GrabParameters) {
139        .grabtype = XI,
140        .ownerEvents = stuff->ownerEvents,
141        .this_device_mode = stuff->this_device_mode,
142        .other_devices_mode = stuff->other_devices_mode,
143        .grabWindow = stuff->grabWindow,
144        .modifiers = stuff->modifiers
145    };
146    mask.xi = tmp[stuff->grabbed_device].mask;
147
148    ret = GrabKey(client, dev, mdev, stuff->key, &param, XI, &mask);
149
150    return ret;
151}
152