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 select input from 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/XI2.h>
61#include <X11/extensions/XIproto.h>
62#include "exevents.h"
63#include "exglobals.h"
64
65#include "grabdev.h"
66#include "selectev.h"
67
68static int
69HandleDevicePresenceMask(ClientPtr client, WindowPtr win,
70                         XEventClass * cls, CARD16 *count)
71{
72    int i, j;
73    Mask mask;
74
75    /* We use the device ID 256 to select events that aren't bound to
76     * any device.  For now we only handle the device presence event,
77     * but this could be extended to other events that aren't bound to
78     * a device.
79     *
80     * In order not to break in CreateMaskFromList() we remove the
81     * entries with device ID 256 from the XEventClass array.
82     */
83
84    mask = 0;
85    for (i = 0, j = 0; i < *count; i++) {
86        if (cls[i] >> 8 != 256) {
87            cls[j] = cls[i];
88            j++;
89            continue;
90        }
91
92        switch (cls[i] & 0xff) {
93        case _devicePresence:
94            mask |= DevicePresenceNotifyMask;
95            break;
96        }
97    }
98
99    *count = j;
100
101    if (mask == 0)
102        return Success;
103
104    /* We always only use mksidx = AllDevices for events not bound to
105     * devices */
106    if (AddExtensionClient(win, client, mask, XIAllDevices) != Success)
107        return BadAlloc;
108
109    RecalculateDeviceDeliverableEvents(win);
110
111    return Success;
112}
113
114/***********************************************************************
115 *
116 * Handle requests from clients with a different byte order.
117 *
118 */
119
120int _X_COLD
121SProcXSelectExtensionEvent(ClientPtr client)
122{
123    REQUEST(xSelectExtensionEventReq);
124    swaps(&stuff->length);
125    REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq);
126    swapl(&stuff->window);
127    swaps(&stuff->count);
128    REQUEST_FIXED_SIZE(xSelectExtensionEventReq, stuff->count * sizeof(CARD32));
129    SwapLongs((CARD32 *) (&stuff[1]), stuff->count);
130
131    return (ProcXSelectExtensionEvent(client));
132}
133
134/***********************************************************************
135 *
136 * This procedure selects input from an extension device.
137 *
138 */
139
140int
141ProcXSelectExtensionEvent(ClientPtr client)
142{
143    int ret;
144    int i;
145    WindowPtr pWin;
146    struct tmask tmp[EMASKSIZE];
147
148    REQUEST(xSelectExtensionEventReq);
149    REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq);
150
151    if (stuff->length !=
152        bytes_to_int32(sizeof(xSelectExtensionEventReq)) + stuff->count)
153        return BadLength;
154
155    ret = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess);
156    if (ret != Success)
157        return ret;
158
159    if (HandleDevicePresenceMask(client, pWin, (XEventClass *) &stuff[1],
160                                 &stuff->count) != Success)
161        return BadAlloc;
162
163    if ((ret = CreateMaskFromList(client, (XEventClass *) &stuff[1],
164                                  stuff->count, tmp, NULL,
165                                  X_SelectExtensionEvent)) != Success)
166        return ret;
167
168    for (i = 0; i < EMASKSIZE; i++)
169        if (tmp[i].dev != NULL) {
170            if (tmp[i].mask & ~XIAllMasks) {
171                client->errorValue = tmp[i].mask;
172                return BadValue;
173            }
174            if ((ret =
175                 SelectForWindow((DeviceIntPtr) tmp[i].dev, pWin, client,
176                                 tmp[i].mask, DeviceButtonGrabMask)) != Success)
177                return ret;
178        }
179
180    return Success;
181}
182