1 /************************************************************
2
3 Copyright 1989, 1998 The Open Group
4
5 Permission to use, copy, modify, distribute, and sell this software and its
6 documentation for any purpose is hereby granted without fee, provided that
7 the above copyright notice appear in all copies and that both that
8 copyright notice and this permission notice appear in supporting
9 documentation.
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21 Except as contained in this notice, the name of The Open Group shall not be
22 used in advertising or otherwise to promote the sale, use or other dealings
23 in this Software without prior written authorization from The Open Group.
24
25 Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27 All Rights Reserved
28
29 Permission to use, copy, modify, and distribute this software and its
30 documentation for any purpose and without fee is hereby granted,
31 provided that the above copyright notice appear in all copies and that
32 both that copyright notice and this permission notice appear in
33 supporting documentation, and that the name of Hewlett-Packard not be
34 used in advertising or publicity pertaining to distribution of the
35 software without specific, written prior permission.
36
37 HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39 HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43 SOFTWARE.
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
68 extern Mask ExtExclusiveMasks[];
69
70 static int
HandleDevicePresenceMask(ClientPtr client,WindowPtr win,XEventClass * cls,CARD16 * count)71 HandleDevicePresenceMask(ClientPtr client, WindowPtr win,
72 XEventClass * cls, CARD16 *count)
73 {
74 int i, j;
75 Mask mask;
76
77 /* We use the device ID 256 to select events that aren't bound to
78 * any device. For now we only handle the device presence event,
79 * but this could be extended to other events that aren't bound to
80 * a device.
81 *
82 * In order not to break in CreateMaskFromList() we remove the
83 * entries with device ID 256 from the XEventClass array.
84 */
85
86 mask = 0;
87 for (i = 0, j = 0; i < *count; i++) {
88 if (cls[i] >> 8 != 256) {
89 cls[j] = cls[i];
90 j++;
91 continue;
92 }
93
94 switch (cls[i] & 0xff) {
95 case _devicePresence:
96 mask |= DevicePresenceNotifyMask;
97 break;
98 }
99 }
100
101 *count = j;
102
103 if (mask == 0)
104 return Success;
105
106 /* We always only use mksidx = AllDevices for events not bound to
107 * devices */
108 if (AddExtensionClient(win, client, mask, XIAllDevices) != Success)
109 return BadAlloc;
110
111 RecalculateDeviceDeliverableEvents(win);
112
113 return Success;
114 }
115
116 /***********************************************************************
117 *
118 * Handle requests from clients with a different byte order.
119 *
120 */
121
122 int _X_COLD
SProcXSelectExtensionEvent(ClientPtr client)123 SProcXSelectExtensionEvent(ClientPtr client)
124 {
125 REQUEST(xSelectExtensionEventReq);
126 swaps(&stuff->length);
127 REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq);
128 swapl(&stuff->window);
129 swaps(&stuff->count);
130 REQUEST_FIXED_SIZE(xSelectExtensionEventReq, stuff->count * sizeof(CARD32));
131 SwapLongs((CARD32 *) (&stuff[1]), stuff->count);
132
133 return (ProcXSelectExtensionEvent(client));
134 }
135
136 /***********************************************************************
137 *
138 * This procedure selects input from an extension device.
139 *
140 */
141
142 int
ProcXSelectExtensionEvent(ClientPtr client)143 ProcXSelectExtensionEvent(ClientPtr client)
144 {
145 int ret;
146 int i;
147 WindowPtr pWin;
148 struct tmask tmp[EMASKSIZE];
149
150 REQUEST(xSelectExtensionEventReq);
151 REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq);
152
153 if (stuff->length !=
154 bytes_to_int32(sizeof(xSelectExtensionEventReq)) + stuff->count)
155 return BadLength;
156
157 ret = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess);
158 if (ret != Success)
159 return ret;
160
161 if (HandleDevicePresenceMask(client, pWin, (XEventClass *) &stuff[1],
162 &stuff->count) != Success)
163 return BadAlloc;
164
165 if ((ret = CreateMaskFromList(client, (XEventClass *) &stuff[1],
166 stuff->count, tmp, NULL,
167 X_SelectExtensionEvent)) != Success)
168 return ret;
169
170 for (i = 0; i < EMASKSIZE; i++)
171 if (tmp[i].dev != NULL) {
172 if (tmp[i].mask & ~XIAllMasks) {
173 client->errorValue = tmp[i].mask;
174 return BadValue;
175 }
176 if ((ret =
177 SelectForWindow((DeviceIntPtr) tmp[i].dev, pWin, client,
178 tmp[i].mask, ExtExclusiveMasks[i])) != Success)
179 return ret;
180 }
181
182 return Success;
183 }
184