Xi/getprop.c

   1 /************************************************************
   2
   3 Copyright 1989, 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 in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21 Except as contained in this notice, the name of The Open Group shall not be
  22 used in advertising or otherwise to promote the sale, use or other dealings
  23 in this Software without prior written authorization from The Open Group.
  24
  25 Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
  26
  27                         All Rights Reserved
  28
  29 Permission to use, copy, modify, and distribute this software and its
  30 documentation for any purpose and without fee is hereby granted,
  31 provided that the above copyright notice appear in all copies and that
  32 both that copyright notice and this permission notice appear in
  33 supporting documentation, and that the name of Hewlett-Packard not be
  34 used in advertising or publicity pertaining to distribution of the
  35 software without specific, written prior permission.
  36
  37 HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  39 HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  43 SOFTWARE.
  44
  45 ********************************************************/
  46
  47 /***********************************************************************
  48  *
  49  * Function to return the dont-propagate-list for an extension device.
  50  *
  51  */
  52
  53 #ifdef HAVE_DIX_CONFIG_H
  54 #include <dix-config.h>
  55 #endif
  56
  57 #include "inputstr.h"           /* DeviceIntPtr      */
  58 #include "windowstr.h"          /* window structs    */
  59 #include <X11/extensions/XI.h>
  60 #include <X11/extensions/XIproto.h>
  61 #include "exglobals.h"
  62 #include "swaprep.h"
  63
  64 #include "getprop.h"
  65
  66 extern XExtEventInfo EventInfo[];
  67 extern int ExtEventIndex;
  68
  69 /***********************************************************************
  70  *
  71  * Handle a request from a client with a different byte order.
  72  *
  73  */
  74
  75 int
  76 SProcXGetDeviceDontPropagateList(ClientPtr client)
  77 {
  78     REQUEST(xGetDeviceDontPropagateListReq);
  79     swaps(&stuff->length);
  80     REQUEST_SIZE_MATCH(xGetDeviceDontPropagateListReq);
  81     swapl(&stuff->window);
  82     return (ProcXGetDeviceDontPropagateList(client));
  83 }
  84
  85 /***********************************************************************
  86  *
  87  * This procedure lists the input devices available to the server.
  88  *
  89  */
  90
  91 int
  92 ProcXGetDeviceDontPropagateList(ClientPtr client)
  93 {
  94     CARD16 count = 0;
  95     int i, rc;
  96     XEventClass *buf = NULL, *tbuf;
  97     WindowPtr pWin;
  98     xGetDeviceDontPropagateListReply rep;
  99     OtherInputMasks *others;
 100
 101     REQUEST(xGetDeviceDontPropagateListReq);
 102     REQUEST_SIZE_MATCH(xGetDeviceDontPropagateListReq);
 103
 104     rep = (xGetDeviceDontPropagateListReply) {
 105         .repType = X_Reply,
 106         .RepType = X_GetDeviceDontPropagateList,
 107         .sequenceNumber = client->sequence,
 108         .length = 0,
 109         .count = 0
 110     };
 111
 112     rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
 113     if (rc != Success)
 114         return rc;
 115
 116     if ((others = wOtherInputMasks(pWin)) != 0) {
 117         for (i = 0; i < EMASKSIZE; i++)
 118             ClassFromMask(NULL, others->dontPropagateMask[i], i, &count, COUNT);
 119         if (count) {
 120             rep.count = count;
 121             buf = (XEventClass *) malloc(rep.count * sizeof(XEventClass));
 122             rep.length = bytes_to_int32(rep.count * sizeof(XEventClass));
 123
 124             tbuf = buf;
 125             for (i = 0; i < EMASKSIZE; i++)
 126                 tbuf = ClassFromMask(tbuf, others->dontPropagateMask[i], i,
 127                                      NULL, CREATE);
 128         }
 129     }
 130
 131     WriteReplyToClient(client, sizeof(xGetDeviceDontPropagateListReply), &rep);
 132
 133     if (count) {
 134         client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
 135         WriteSwappedDataToClient(client, count * sizeof(XEventClass), buf);
 136         free(buf);
 137     }
 138     return Success;
 139 }
 140
 141 /***********************************************************************
 142  *
 143  * This procedure gets a list of event classes from a mask word.
 144  * A single mask may translate to more than one event class.
 145  *
 146  */
 147
 148 XEventClass
 149     * ClassFromMask(XEventClass * buf, Mask mask, int maskndx, CARD16 *count,
 150                     int mode)
 151 {
 152     int i, j;
 153     int id = maskndx;
 154     Mask tmask = 0x80000000;
 155
 156     for (i = 0; i < 32; i++, tmask >>= 1)
 157         if (tmask & mask) {
 158             for (j = 0; j < ExtEventIndex; j++)
 159                 if (EventInfo[j].mask == tmask) {
 160                     if (mode == COUNT)
 161                         (*count)++;
 162                     else
 163                         *buf++ = (id << 8) | EventInfo[j].type;
 164                 }
 165         }
 166     return buf;
 167 }
 168
 169 /***********************************************************************
 170  *
 171  * This procedure writes the reply for the XGetDeviceDontPropagateList function,
 172  * if the client and server have a different byte ordering.
 173  *
 174  */
 175
 176 void
 177 SRepXGetDeviceDontPropagateList(ClientPtr client, int size,
 178                                 xGetDeviceDontPropagateListReply * rep)
 179 {
 180     swaps(&rep->sequenceNumber);
 181     swapl(&rep->length);
 182     swaps(&rep->count);
 183     WriteToClient(client, size, rep);
 184 }