| 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 | } |