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a09e091a JB |
1 | /* |
2 | ||
3 | Copyright 1998, 1998 The Open Group | |
4 | ||
5 | Permission to use, copy, modify, distribute, and sell this software and its | |
6 | documentation for any purpose is hereby granted without fee, provided that | |
7 | the above copyright notice appear in all copies and that both that | |
8 | copyright notice and this permission notice appear in supporting | |
9 | documentation. | |
10 | ||
11 | The above copyright notice and this permission notice shall be included | |
12 | in all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
15 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
17 | IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | OTHER DEALINGS IN THE SOFTWARE. | |
21 | ||
22 | Except as contained in this notice, the name of The Open Group shall | |
23 | not be used in advertising or otherwise to promote the sale, use or | |
24 | other dealings in this Software without prior written authorization | |
25 | from The Open Group. | |
26 | ||
27 | */ | |
28 | ||
29 | /*********************************************************************** | |
30 | * | |
31 | * Request to query the state of an extension input device. | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifdef HAVE_DIX_CONFIG_H | |
36 | #include <dix-config.h> | |
37 | #endif | |
38 | ||
39 | #include "inputstr.h" /* DeviceIntPtr */ | |
40 | #include "windowstr.h" /* window structure */ | |
41 | #include <X11/extensions/XI.h> | |
42 | #include <X11/extensions/XIproto.h> | |
43 | #include "exevents.h" | |
44 | #include "exglobals.h" | |
45 | #include "xkbsrv.h" | |
46 | #include "xkbstr.h" | |
47 | ||
48 | #include "queryst.h" | |
49 | ||
50 | /*********************************************************************** | |
51 | * | |
52 | * This procedure allows a client to query the state of a device. | |
53 | * | |
54 | */ | |
55 | ||
56 | int | |
57 | SProcXQueryDeviceState(ClientPtr client) | |
58 | { | |
59 | REQUEST(xQueryDeviceStateReq); | |
60 | swaps(&stuff->length); | |
61 | return (ProcXQueryDeviceState(client)); | |
62 | } | |
63 | ||
64 | /*********************************************************************** | |
65 | * | |
66 | * This procedure allows frozen events to be routed. | |
67 | * | |
68 | */ | |
69 | ||
70 | int | |
71 | ProcXQueryDeviceState(ClientPtr client) | |
72 | { | |
73 | int rc, i; | |
74 | int num_classes = 0; | |
75 | int total_length = 0; | |
76 | char *buf, *savbuf; | |
77 | KeyClassPtr k; | |
78 | xKeyState *tk; | |
79 | ButtonClassPtr b; | |
80 | xButtonState *tb; | |
81 | ValuatorClassPtr v; | |
82 | xValuatorState *tv; | |
83 | xQueryDeviceStateReply rep; | |
84 | DeviceIntPtr dev; | |
85 | double *values; | |
86 | ||
87 | REQUEST(xQueryDeviceStateReq); | |
88 | REQUEST_SIZE_MATCH(xQueryDeviceStateReq); | |
89 | ||
90 | rc = dixLookupDevice(&dev, stuff->deviceid, client, DixReadAccess); | |
91 | if (rc != Success && rc != BadAccess) | |
92 | return rc; | |
93 | ||
94 | v = dev->valuator; | |
95 | if (v != NULL && v->motionHintWindow != NULL) | |
96 | MaybeStopDeviceHint(dev, client); | |
97 | ||
98 | k = dev->key; | |
99 | if (k != NULL) { | |
100 | total_length += sizeof(xKeyState); | |
101 | num_classes++; | |
102 | } | |
103 | ||
104 | b = dev->button; | |
105 | if (b != NULL) { | |
106 | total_length += sizeof(xButtonState); | |
107 | num_classes++; | |
108 | } | |
109 | ||
110 | if (v != NULL) { | |
111 | total_length += (sizeof(xValuatorState) + (v->numAxes * sizeof(int))); | |
112 | num_classes++; | |
113 | } | |
114 | buf = (char *) calloc(total_length, 1); | |
115 | if (!buf) | |
116 | return BadAlloc; | |
117 | savbuf = buf; | |
118 | ||
119 | if (k != NULL) { | |
120 | tk = (xKeyState *) buf; | |
121 | tk->class = KeyClass; | |
122 | tk->length = sizeof(xKeyState); | |
123 | tk->num_keys = k->xkbInfo->desc->max_key_code - | |
124 | k->xkbInfo->desc->min_key_code + 1; | |
125 | if (rc != BadAccess) | |
126 | for (i = 0; i < 32; i++) | |
127 | tk->keys[i] = k->down[i]; | |
128 | buf += sizeof(xKeyState); | |
129 | } | |
130 | ||
131 | if (b != NULL) { | |
132 | tb = (xButtonState *) buf; | |
133 | tb->class = ButtonClass; | |
134 | tb->length = sizeof(xButtonState); | |
135 | tb->num_buttons = b->numButtons; | |
136 | if (rc != BadAccess) | |
137 | memcpy(tb->buttons, b->down, sizeof(b->down)); | |
138 | buf += sizeof(xButtonState); | |
139 | } | |
140 | ||
141 | if (v != NULL) { | |
142 | tv = (xValuatorState *) buf; | |
143 | tv->class = ValuatorClass; | |
144 | tv->length = sizeof(xValuatorState) + v->numAxes * 4; | |
145 | tv->num_valuators = v->numAxes; | |
146 | tv->mode = valuator_get_mode(dev, 0); | |
147 | tv->mode |= (dev->proximity && | |
148 | !dev->proximity->in_proximity) ? OutOfProximity : 0; | |
149 | buf += sizeof(xValuatorState); | |
150 | for (i = 0, values = v->axisVal; i < v->numAxes; i++) { | |
151 | if (rc != BadAccess) | |
152 | *((int *) buf) = *values; | |
153 | values++; | |
154 | if (client->swapped) { | |
155 | swapl((int *) buf); | |
156 | } | |
157 | buf += sizeof(int); | |
158 | } | |
159 | } | |
160 | ||
161 | rep = (xQueryDeviceStateReply) { | |
162 | .repType = X_Reply, | |
163 | .RepType = X_QueryDeviceState, | |
164 | .sequenceNumber = client->sequence, | |
165 | .length = bytes_to_int32(total_length), | |
166 | .num_classes = num_classes | |
167 | }; | |
168 | WriteReplyToClient(client, sizeof(xQueryDeviceStateReply), &rep); | |
169 | if (total_length > 0) | |
170 | WriteToClient(client, total_length, savbuf); | |
171 | free(savbuf); | |
172 | return Success; | |
173 | } | |
174 | ||
175 | /*********************************************************************** | |
176 | * | |
177 | * This procedure writes the reply for the XQueryDeviceState function, | |
178 | * if the client and server have a different byte ordering. | |
179 | * | |
180 | */ | |
181 | ||
182 | void | |
183 | SRepXQueryDeviceState(ClientPtr client, int size, xQueryDeviceStateReply * rep) | |
184 | { | |
185 | swaps(&rep->sequenceNumber); | |
186 | swapl(&rep->length); | |
187 | WriteToClient(client, size, rep); | |
188 | } |