Xi/setmode.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  * Request to change the mode of an extension input device.
  50  *
  51  */
  52
  53 #include <dix-config.h>
  54
  55 #include <X11/extensions/XI.h>
  56 #include <X11/extensions/XIproto.h>
  57
  58 #include "dix/input_priv.h"
  59
  60 #include "inputstr.h"           /* DeviceIntPtr      */
  61 #include "XIstubs.h"
  62 #include "exglobals.h"
  63 #include "setmode.h"
  64
  65 /***********************************************************************
  66  *
  67  * Handle a request from a client with a different byte order.
  68  *
  69  */
  70
  71 int _X_COLD
  72 SProcXSetDeviceMode(ClientPtr client)
  73 {
  74     REQUEST(xSetDeviceModeReq);
  75     swaps(&stuff->length);
  76     return (ProcXSetDeviceMode(client));
  77 }
  78
  79 /***********************************************************************
  80  *
  81  * This procedure sets the mode of a device.
  82  *
  83  */
  84
  85 int
  86 ProcXSetDeviceMode(ClientPtr client)
  87 {
  88     DeviceIntPtr dev;
  89     xSetDeviceModeReply rep;
  90     int rc;
  91
  92     REQUEST(xSetDeviceModeReq);
  93     REQUEST_SIZE_MATCH(xSetDeviceModeReq);
  94
  95     rep = (xSetDeviceModeReply) {
  96         .repType = X_Reply,
  97         .RepType = X_SetDeviceMode,
  98         .sequenceNumber = client->sequence,
  99         .length = 0
 100     };
 101
 102     rc = dixLookupDevice(&dev, stuff->deviceid, client, DixSetAttrAccess);
 103     if (rc != Success)
 104         return rc;
 105     if (dev->valuator == NULL)
 106         return BadMatch;
 107
 108     if (IsXTestDevice(dev, NULL))
 109         return BadMatch;
 110
 111     if ((dev->deviceGrab.grab) && !SameClient(dev->deviceGrab.grab, client))
 112         rep.status = AlreadyGrabbed;
 113     else
 114         rep.status = SetDeviceMode(client, dev, stuff->mode);
 115
 116     if (rep.status == Success)
 117         valuator_set_mode(dev, VALUATOR_MODE_ALL_AXES, stuff->mode);
 118     else if (rep.status != AlreadyGrabbed) {
 119         switch (rep.status) {
 120         case BadMatch:
 121         case BadImplementation:
 122         case BadAlloc:
 123             break;
 124         default:
 125             rep.status = BadMode;
 126         }
 127         return rep.status;
 128     }
 129
 130     WriteReplyToClient(client, sizeof(xSetDeviceModeReply), &rep);
 131     return Success;
 132 }
 133
 134 /***********************************************************************
 135  *
 136  * This procedure writes the reply for the XSetDeviceMode function,
 137  * if the client and server have a different byte ordering.
 138  *
 139  */
 140
 141 void _X_COLD
 142 SRepXSetDeviceMode(ClientPtr client, int size, xSetDeviceModeReply * rep)
 143 {
 144     swaps(&rep->sequenceNumber);
 145     swapl(&rep->length);
 146     WriteToClient(client, size, rep);
 147 }