XIAllowEvents.c revision 2bd699fb 
1/*
2 * Copyright © 2009 Red Hat, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 */
24
25#if HAVE_CONFIG_H
26#include <config.h>
27#endif
28
29#include <stdint.h>
30#include <X11/Xlibint.h>
31#include <X11/extensions/XI2proto.h>
32#include <X11/extensions/XInput2.h>
33#include <X11/extensions/extutil.h>
34#include "XIint.h"
35
36/* for GetRequest() to work */
37#define X_XI2_2AllowEvents X_XIAllowEvents
38
39static Status
40_XIAllowEvents(Display *dpy, int deviceid, int event_mode, Time time,
41                    unsigned int touchid, Window grab_window)
42{
43    Bool have_XI22 = True;
44    xXIAllowEventsReq *req;
45    xXI2_2AllowEventsReq *req_XI22;
46
47    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
48
49    LockDisplay(dpy);
50    if (_XiCheckExtInit(dpy, XInput_2_0, extinfo) == -1)
51	return (NoSuchExtension);
52
53    if (_XiCheckExtInit(dpy, XInput_2_2, extinfo) == 0)
54        have_XI22 = True;
55
56    if (have_XI22)
57    {
58        GetReq(XI2_2AllowEvents, req_XI22);
59        req = (xXIAllowEventsReq*)req_XI22;
60    } else
61        GetReq(XIAllowEvents, req);
62
63    req->reqType = extinfo->codes->major_opcode;
64    req->ReqType = X_XIAllowEvents;
65    req->deviceid = deviceid;
66    req->mode = event_mode;
67    req->time = time;
68
69    if (have_XI22) {
70        req_XI22->touchid = touchid;
71        req_XI22->grab_window = grab_window;
72    }
73
74    UnlockDisplay(dpy);
75    SyncHandle();
76    return Success;
77}
78
79Status
80XIAllowEvents(Display *dpy, int deviceid, int event_mode, Time time)
81{
82    return _XIAllowEvents(dpy, deviceid, event_mode, time, 0, None);
83}
84
85Status
86XIAllowTouchEvents(Display *dpy, int deviceid, unsigned int touchid,
87                   Window grab_window, int event_mode)
88{
89    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
90
91    LockDisplay(dpy);
92    if (_XiCheckExtInit(dpy, XInput_2_2, extinfo) == -1)
93	return (NoSuchExtension);
94    UnlockDisplay(dpy);
95
96    return _XIAllowEvents(dpy, deviceid, event_mode, CurrentTime, touchid, grab_window);
97}
98