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a09e091a JB |
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 | * Author: Peter Hutterer | |
24 | */ | |
25 | ||
26 | /*********************************************************************** | |
27 | * | |
28 | * Request to grab or ungrab input device. | |
29 | * | |
30 | */ | |
31 | ||
32 | #ifdef HAVE_DIX_CONFIG_H | |
33 | #include <dix-config.h> | |
34 | #endif | |
35 | ||
36 | #include "inputstr.h" /* DeviceIntPtr */ | |
37 | #include "windowstr.h" /* window structure */ | |
38 | #include <X11/extensions/XI2.h> | |
39 | #include <X11/extensions/XI2proto.h> | |
40 | ||
41 | #include "exglobals.h" /* BadDevice */ | |
42 | #include "exevents.h" | |
43 | #include "xigrabdev.h" | |
44 | #include "inpututils.h" | |
45 | ||
46 | int | |
47 | SProcXIGrabDevice(ClientPtr client) | |
48 | { | |
49 | REQUEST(xXIGrabDeviceReq); | |
50 | ||
51 | swaps(&stuff->length); | |
52 | swaps(&stuff->deviceid); | |
53 | swapl(&stuff->grab_window); | |
54 | swapl(&stuff->cursor); | |
55 | swapl(&stuff->time); | |
56 | swaps(&stuff->mask_len); | |
57 | ||
58 | return ProcXIGrabDevice(client); | |
59 | } | |
60 | ||
61 | int | |
62 | ProcXIGrabDevice(ClientPtr client) | |
63 | { | |
64 | DeviceIntPtr dev; | |
65 | xXIGrabDeviceReply rep; | |
66 | int ret = Success; | |
67 | uint8_t status; | |
68 | GrabMask mask = { 0 }; | |
69 | int mask_len; | |
70 | unsigned int keyboard_mode; | |
71 | unsigned int pointer_mode; | |
72 | ||
73 | REQUEST(xXIGrabDeviceReq); | |
74 | REQUEST_AT_LEAST_SIZE(xXIGrabDeviceReq); | |
75 | ||
76 | ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess); | |
77 | if (ret != Success) | |
78 | return ret; | |
79 | ||
80 | if (!IsMaster(dev)) | |
81 | stuff->paired_device_mode = GrabModeAsync; | |
82 | ||
83 | if (IsKeyboardDevice(dev)) { | |
84 | keyboard_mode = stuff->grab_mode; | |
85 | pointer_mode = stuff->paired_device_mode; | |
86 | } | |
87 | else { | |
88 | keyboard_mode = stuff->paired_device_mode; | |
89 | pointer_mode = stuff->grab_mode; | |
90 | } | |
91 | ||
92 | if (XICheckInvalidMaskBits(client, (unsigned char *) &stuff[1], | |
93 | stuff->mask_len * 4) != Success) | |
94 | return BadValue; | |
95 | ||
96 | mask.xi2mask = xi2mask_new(); | |
97 | if (!mask.xi2mask) | |
98 | return BadAlloc; | |
99 | ||
100 | mask_len = min(xi2mask_mask_size(mask.xi2mask), stuff->mask_len * 4); | |
101 | /* FIXME: I think the old code was broken here */ | |
102 | xi2mask_set_one_mask(mask.xi2mask, dev->id, (unsigned char *) &stuff[1], | |
103 | mask_len); | |
104 | ||
105 | ret = GrabDevice(client, dev, pointer_mode, | |
106 | keyboard_mode, | |
107 | stuff->grab_window, | |
108 | stuff->owner_events, | |
109 | stuff->time, | |
110 | &mask, XI2, stuff->cursor, None /* confineTo */ , | |
111 | &status); | |
112 | ||
113 | xi2mask_free(&mask.xi2mask); | |
114 | ||
115 | if (ret != Success) | |
116 | return ret; | |
117 | ||
118 | rep = (xXIGrabDeviceReply) { | |
119 | .repType = X_Reply, | |
120 | .RepType = X_XIGrabDevice, | |
121 | .sequenceNumber = client->sequence, | |
122 | .length = 0, | |
123 | .status = status | |
124 | }; | |
125 | ||
126 | WriteReplyToClient(client, sizeof(rep), &rep); | |
127 | return ret; | |
128 | } | |
129 | ||
130 | int | |
131 | SProcXIUngrabDevice(ClientPtr client) | |
132 | { | |
133 | REQUEST(xXIUngrabDeviceReq); | |
134 | ||
135 | swaps(&stuff->length); | |
136 | swaps(&stuff->deviceid); | |
137 | swapl(&stuff->time); | |
138 | ||
139 | return ProcXIUngrabDevice(client); | |
140 | } | |
141 | ||
142 | int | |
143 | ProcXIUngrabDevice(ClientPtr client) | |
144 | { | |
145 | DeviceIntPtr dev; | |
146 | GrabPtr grab; | |
147 | int ret = Success; | |
148 | TimeStamp time; | |
149 | ||
150 | REQUEST(xXIUngrabDeviceReq); | |
151 | ||
152 | ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess); | |
153 | if (ret != Success) | |
154 | return ret; | |
155 | ||
156 | grab = dev->deviceGrab.grab; | |
157 | ||
158 | time = ClientTimeToServerTime(stuff->time); | |
159 | if ((CompareTimeStamps(time, currentTime) != LATER) && | |
160 | (CompareTimeStamps(time, dev->deviceGrab.grabTime) != EARLIER) && | |
161 | (grab) && SameClient(grab, client) && grab->grabtype == XI2) | |
162 | (*dev->deviceGrab.DeactivateGrab) (dev); | |
163 | ||
164 | return Success; | |
165 | } | |
166 | ||
167 | void | |
168 | SRepXIGrabDevice(ClientPtr client, int size, xXIGrabDeviceReply * rep) | |
169 | { | |
170 | swaps(&rep->sequenceNumber); | |
171 | swapl(&rep->length); | |
172 | WriteToClient(client, size, rep); | |
173 | } |