2 * Copyright © 2009 Red Hat, Inc.
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:
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
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
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21 * DEALINGS IN THE SOFTWARE.
30 #include <X11/Xlibint.h>
31 #include <X11/extensions/XI2proto.h>
32 #include <X11/extensions/XInput2.h>
33 #include <X11/extensions/extutil.h>
39 XIGrabDevice(Display* dpy, int deviceid, Window grab_window, Time time,
40 Cursor cursor, int grab_mode, int paired_device_mode,
41 Bool owner_events, XIEventMask *mask)
43 xXIGrabDeviceReq *req;
44 xXIGrabDeviceReply reply;
48 XExtDisplayInfo *extinfo = XInput_find_display(dpy);
51 if (_XiCheckExtInit(dpy, XInput_2_0, extinfo) == -1)
52 return (NoSuchExtension);
54 if (mask->mask_len > INT_MAX - 3 ||
55 (mask->mask_len + 3)/4 >= 0xffff)
58 /* mask->mask_len is in bytes, but we need 4-byte units on the wire,
59 * and they need to be padded with 0 */
60 len = (mask->mask_len + 3)/4;
61 buff = calloc(4, len);
65 GetReq(XIGrabDevice, req);
66 req->reqType = extinfo->codes->major_opcode;
67 req->ReqType = X_XIGrabDevice;
68 req->deviceid = deviceid;
69 req->grab_window = grab_window;
71 req->grab_mode = grab_mode;
72 req->paired_device_mode = paired_device_mode;
73 req->owner_events = owner_events;
77 memcpy(buff, mask->mask, mask->mask_len);
79 SetReqLen(req, len, len);
80 Data(dpy, buff, len * 4);
83 if (_XReply(dpy, (xReply *)&reply, 0, xTrue) == 0)
84 reply.status = GrabSuccess;
93 XIUngrabDevice(Display* dpy, int deviceid, Time time)
95 xXIUngrabDeviceReq *req;
97 XExtDisplayInfo *info = XInput_find_display(dpy);
100 if (_XiCheckExtInit(dpy, XInput_2_0, info) == -1)
101 return (NoSuchExtension);
103 GetReq(XIUngrabDevice, req);
104 req->reqType = info->codes->major_opcode;
105 req->ReqType = X_XIUngrabDevice;
107 req->deviceid = deviceid;