devbell.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 * Extension function to change the keyboard 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 <X11/extensions/XI.h>
63#include <X11/extensions/XIproto.h>
64#include "extnsionst.h"
65#include "extinit.h"	/* LookupDeviceIntRec */
66#include "exglobals.h"
67
68#include "devbell.h"
69
70/***********************************************************************
71 *
72 * This procedure is invoked to swap the request bytes if the server and
73 * client have a different byte order.
74 *
75 */
76
77int
78SProcXDeviceBell(ClientPtr client)
79{
80    char n;
81
82    REQUEST(xDeviceBellReq);
83    swaps(&stuff->length, n);
84    return (ProcXDeviceBell(client));
85}
86
87/***********************************************************************
88 *
89 * This procedure rings a bell on an extension device.
90 *
91 */
92
93int
94ProcXDeviceBell(ClientPtr client)
95{
96    DeviceIntPtr dev;
97    KbdFeedbackPtr k;
98    BellFeedbackPtr b;
99    int base;
100    int newpercent;
101    CARD8 class;
102    pointer ctrl;
103    BellProcPtr proc;
104
105    REQUEST(xDeviceBellReq);
106    REQUEST_SIZE_MATCH(xDeviceBellReq);
107
108    dev = LookupDeviceIntRec(stuff->deviceid);
109    if (dev == NULL) {
110	client->errorValue = stuff->deviceid;
111	SendErrorToClient(client, IReqCode, X_DeviceBell, 0, BadDevice);
112	return Success;
113    }
114
115    if (stuff->percent < -100 || stuff->percent > 100) {
116	client->errorValue = stuff->percent;
117	SendErrorToClient(client, IReqCode, X_DeviceBell, 0, BadValue);
118	return Success;
119    }
120    if (stuff->feedbackclass == KbdFeedbackClass) {
121	for (k = dev->kbdfeed; k; k = k->next)
122	    if (k->ctrl.id == stuff->feedbackid)
123		break;
124	if (!k) {
125	    client->errorValue = stuff->feedbackid;
126	    SendErrorToClient(client, IReqCode, X_DeviceBell, 0, BadValue);
127	    return Success;
128	}
129	base = k->ctrl.bell;
130	proc = k->BellProc;
131	ctrl = (pointer) & (k->ctrl);
132	class = KbdFeedbackClass;
133    } else if (stuff->feedbackclass == BellFeedbackClass) {
134	for (b = dev->bell; b; b = b->next)
135	    if (b->ctrl.id == stuff->feedbackid)
136		break;
137	if (!b) {
138	    client->errorValue = stuff->feedbackid;
139	    SendErrorToClient(client, IReqCode, X_DeviceBell, 0, BadValue);
140	    return Success;
141	}
142	base = b->ctrl.percent;
143	proc = b->BellProc;
144	ctrl = (pointer) & (b->ctrl);
145	class = BellFeedbackClass;
146    } else {
147	client->errorValue = stuff->feedbackclass;
148	SendErrorToClient(client, IReqCode, X_DeviceBell, 0, BadValue);
149	return Success;
150    }
151    newpercent = (base * stuff->percent) / 100;
152    if (stuff->percent < 0)
153	newpercent = base + newpercent;
154    else
155	newpercent = base - newpercent + stuff->percent;
156    (*proc) (newpercent, dev, ctrl, class);
157
158    return Success;
159}
160