getselev.c revision 1b5d61b8 
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 get the current selected events for a given window.
50 *
51 */
52
53#ifdef HAVE_DIX_CONFIG_H
54#include <dix-config.h>
55#endif
56
57#include <X11/extensions/XI.h>
58#include <X11/extensions/XIproto.h>
59#include "inputstr.h"           /* DeviceIntPtr      */
60#include "windowstr.h"          /* window struct     */
61#include "exglobals.h"
62#include "swaprep.h"
63
64#include "getprop.h"
65#include "getselev.h"
66
67/***********************************************************************
68 *
69 * This procedure gets the current selected extension events.
70 *
71 */
72
73int _X_COLD
74SProcXGetSelectedExtensionEvents(ClientPtr client)
75{
76    REQUEST(xGetSelectedExtensionEventsReq);
77    swaps(&stuff->length);
78    REQUEST_SIZE_MATCH(xGetSelectedExtensionEventsReq);
79    swapl(&stuff->window);
80    return (ProcXGetSelectedExtensionEvents(client));
81}
82
83/***********************************************************************
84 *
85 * This procedure gets the current device select mask,
86 * if the client and server have a different byte ordering.
87 *
88 */
89
90int
91ProcXGetSelectedExtensionEvents(ClientPtr client)
92{
93    int i, rc, total_length = 0;
94    xGetSelectedExtensionEventsReply rep;
95    WindowPtr pWin;
96    XEventClass *buf = NULL;
97    XEventClass *tclient;
98    XEventClass *aclient;
99    OtherInputMasks *pOthers;
100    InputClientsPtr others;
101
102    REQUEST(xGetSelectedExtensionEventsReq);
103    REQUEST_SIZE_MATCH(xGetSelectedExtensionEventsReq);
104
105    rep = (xGetSelectedExtensionEventsReply) {
106        .repType = X_Reply,
107        .RepType = X_GetSelectedExtensionEvents,
108        .sequenceNumber = client->sequence,
109        .length = 0,
110        .this_client_count = 0,
111        .all_clients_count = 0
112    };
113
114    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
115    if (rc != Success)
116        return rc;
117
118    if ((pOthers = wOtherInputMasks(pWin)) != 0) {
119        for (others = pOthers->inputClients; others; others = others->next)
120            for (i = 0; i < EMASKSIZE; i++)
121                ClassFromMask(NULL, others->mask[i], i,
122                              &rep.all_clients_count, COUNT);
123
124        for (others = pOthers->inputClients; others; others = others->next)
125            if (SameClient(others, client)) {
126                for (i = 0; i < EMASKSIZE; i++)
127                    ClassFromMask(NULL, others->mask[i], i,
128                                  &rep.this_client_count, COUNT);
129                break;
130            }
131
132        total_length = (rep.all_clients_count + rep.this_client_count) *
133            sizeof(XEventClass);
134        rep.length = bytes_to_int32(total_length);
135        buf = (XEventClass *) malloc(total_length);
136
137        tclient = buf;
138        aclient = buf + rep.this_client_count;
139        if (others)
140            for (i = 0; i < EMASKSIZE; i++)
141                tclient =
142                    ClassFromMask(tclient, others->mask[i], i, NULL, CREATE);
143
144        for (others = pOthers->inputClients; others; others = others->next)
145            for (i = 0; i < EMASKSIZE; i++)
146                aclient =
147                    ClassFromMask(aclient, others->mask[i], i, NULL, CREATE);
148    }
149
150    WriteReplyToClient(client, sizeof(xGetSelectedExtensionEventsReply), &rep);
151
152    if (total_length) {
153        client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
154        WriteSwappedDataToClient(client, total_length, buf);
155    }
156    free(buf);
157    return Success;
158}
159
160/***********************************************************************
161 *
162 * This procedure writes the reply for the XGetSelectedExtensionEvents function,
163 * if the client and server have a different byte ordering.
164 *
165 */
166
167void _X_COLD
168SRepXGetSelectedExtensionEvents(ClientPtr client, int size,
169                                xGetSelectedExtensionEventsReply * rep)
170{
171    swaps(&rep->sequenceNumber);
172    swapl(&rep->length);
173    swaps(&rep->this_client_count);
174    swaps(&rep->all_clients_count);
175    WriteToClient(client, size, rep);
176}
177