getfocus.c revision 706f2543 
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 focus for an extension device.
50 *
51 */
52
53#ifdef HAVE_DIX_CONFIG_H
54#include <dix-config.h>
55#endif
56
57#include "windowstr.h"	/* focus struct      */
58#include "inputstr.h"	/* DeviceIntPtr      */
59#include <X11/extensions/XI.h>
60#include <X11/extensions/XIproto.h>
61#include "exglobals.h"
62
63#include "getfocus.h"
64
65/***********************************************************************
66 *
67 * This procedure gets the focus for a device.
68 *
69 */
70
71int
72SProcXGetDeviceFocus(ClientPtr client)
73{
74    char n;
75
76    REQUEST(xGetDeviceFocusReq);
77    swaps(&stuff->length, n);
78    return (ProcXGetDeviceFocus(client));
79}
80
81/***********************************************************************
82 *
83 * This procedure gets the focus for a device.
84 *
85 */
86
87int
88ProcXGetDeviceFocus(ClientPtr client)
89{
90    DeviceIntPtr dev;
91    FocusClassPtr focus;
92    xGetDeviceFocusReply rep;
93    int rc;
94
95    REQUEST(xGetDeviceFocusReq);
96    REQUEST_SIZE_MATCH(xGetDeviceFocusReq);
97
98    rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetFocusAccess);
99    if (rc != Success)
100	return rc;
101    if (!dev->focus)
102	return BadDevice;
103
104    rep.repType = X_Reply;
105    rep.RepType = X_GetDeviceFocus;
106    rep.length = 0;
107    rep.sequenceNumber = client->sequence;
108
109    focus = dev->focus;
110
111    if (focus->win == NoneWin)
112	rep.focus = None;
113    else if (focus->win == PointerRootWin)
114	rep.focus = PointerRoot;
115    else if (focus->win == FollowKeyboardWin)
116	rep.focus = FollowKeyboard;
117    else
118	rep.focus = focus->win->drawable.id;
119
120    rep.time = focus->time.milliseconds;
121    rep.revertTo = focus->revert;
122    WriteReplyToClient(client, sizeof(xGetDeviceFocusReply), &rep);
123    return Success;
124}
125
126/***********************************************************************
127 *
128 * This procedure writes the reply for the GetDeviceFocus function,
129 * if the client and server have a different byte ordering.
130 *
131 */
132
133void
134SRepXGetDeviceFocus(ClientPtr client, int size, xGetDeviceFocusReply * rep)
135{
136    char n;
137
138    swaps(&rep->sequenceNumber, n);
139    swapl(&rep->length, n);
140    swapl(&rep->focus, n);
141    swapl(&rep->time, n);
142    WriteToClient(client, size, (char *)rep);
143}
144