ungrdevk.c revision 05b261ec 
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 * Request to release a grab of a key on an extension device.
50 *
51 */
52
53#define	 NEED_EVENTS
54#define	 NEED_REPLIES
55#ifdef HAVE_DIX_CONFIG_H
56#include <dix-config.h>
57#endif
58
59#include <X11/X.h>	/* for inputstr.h    */
60#include <X11/Xproto.h>	/* Request macro     */
61#include "inputstr.h"	/* DeviceIntPtr      */
62#include "windowstr.h"	/* window structure  */
63#include <X11/extensions/XI.h>
64#include <X11/extensions/XIproto.h>
65#include "extnsionst.h"
66#include "extinit.h"	/* LookupDeviceIntRec */
67#include "exglobals.h"
68#include "dixgrabs.h"
69
70#include "ungrdevk.h"
71
72#define AllModifiersMask ( \
73	ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
74	Mod3Mask | Mod4Mask | Mod5Mask )
75
76/***********************************************************************
77 *
78 * Handle requests from a client with a different byte order.
79 *
80 */
81
82int
83SProcXUngrabDeviceKey(ClientPtr client)
84{
85    char n;
86
87    REQUEST(xUngrabDeviceKeyReq);
88    swaps(&stuff->length, n);
89    REQUEST_SIZE_MATCH(xUngrabDeviceKeyReq);
90    swapl(&stuff->grabWindow, n);
91    swaps(&stuff->modifiers, n);
92    return (ProcXUngrabDeviceKey(client));
93}
94
95/***********************************************************************
96 *
97 * Release a grab of a key on an extension device.
98 *
99 */
100
101int
102ProcXUngrabDeviceKey(ClientPtr client)
103{
104    DeviceIntPtr dev;
105    DeviceIntPtr mdev;
106    WindowPtr pWin;
107    GrabRec temporaryGrab;
108    int rc;
109
110    REQUEST(xUngrabDeviceKeyReq);
111    REQUEST_SIZE_MATCH(xUngrabDeviceKeyReq);
112
113    dev = LookupDeviceIntRec(stuff->grabbed_device);
114    if (dev == NULL) {
115	SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, BadDevice);
116	return Success;
117    }
118    if (dev->key == NULL) {
119	SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, BadMatch);
120	return Success;
121    }
122
123    if (stuff->modifier_device != UseXKeyboard) {
124	mdev = LookupDeviceIntRec(stuff->modifier_device);
125	if (mdev == NULL) {
126	    SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0,
127			      BadDevice);
128	    return Success;
129	}
130	if (mdev->key == NULL) {
131	    SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, BadMatch);
132	    return Success;
133	}
134    } else
135	mdev = (DeviceIntPtr) LookupKeyboardDevice();
136
137    rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixUnknownAccess);
138    if (rc != Success) {
139	SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, rc);
140	return Success;
141    }
142    if (((stuff->key > dev->key->curKeySyms.maxKeyCode) ||
143	 (stuff->key < dev->key->curKeySyms.minKeyCode))
144	&& (stuff->key != AnyKey)) {
145	SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, BadValue);
146	return Success;
147    }
148    if ((stuff->modifiers != AnyModifier) &&
149	(stuff->modifiers & ~AllModifiersMask)) {
150	SendErrorToClient(client, IReqCode, X_UngrabDeviceKey, 0, BadValue);
151	return Success;
152    }
153
154    temporaryGrab.resource = client->clientAsMask;
155    temporaryGrab.device = dev;
156    temporaryGrab.window = pWin;
157    temporaryGrab.type = DeviceKeyPress;
158    temporaryGrab.modifierDevice = mdev;
159    temporaryGrab.modifiersDetail.exact = stuff->modifiers;
160    temporaryGrab.modifiersDetail.pMask = NULL;
161    temporaryGrab.detail.exact = stuff->key;
162    temporaryGrab.detail.pMask = NULL;
163
164    DeletePassiveGrabFromList(&temporaryGrab);
165    return Success;
166}
167