xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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xiallowev.c (4103B)

      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 allow some device events.
     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 "mi.h"
     39 #include "eventstr.h"
     40 #include <X11/extensions/XI2.h>
     41 #include <X11/extensions/XI2proto.h>
     42 
     43 #include "exglobals.h"          /* BadDevice */
     44 #include "exevents.h"
     45 #include "xiallowev.h"
     46 
     47 int _X_COLD
     48 SProcXIAllowEvents(ClientPtr client)
     49 {
     50     REQUEST(xXIAllowEventsReq);
     51     REQUEST_AT_LEAST_SIZE(xXIAllowEventsReq);
     52 
     53     swaps(&stuff->length);
     54     swaps(&stuff->deviceid);
     55     swapl(&stuff->time);
     56     if (stuff->length > 3) {
     57         xXI2_2AllowEventsReq *req_xi22 = (xXI2_2AllowEventsReq *) stuff;
     58 
     59         REQUEST_AT_LEAST_SIZE(xXI2_2AllowEventsReq);
     60         swapl(&req_xi22->touchid);
     61         swapl(&req_xi22->grab_window);
     62     }
     63 
     64     return ProcXIAllowEvents(client);
     65 }
     66 
     67 int
     68 ProcXIAllowEvents(ClientPtr client)
     69 {
     70     TimeStamp time;
     71     DeviceIntPtr dev;
     72     int ret = Success;
     73     XIClientPtr xi_client;
     74     Bool have_xi22 = FALSE;
     75 
     76     REQUEST(xXI2_2AllowEventsReq);
     77 
     78     xi_client = dixLookupPrivate(&client->devPrivates, XIClientPrivateKey);
     79 
     80     if (version_compare(xi_client->major_version,
     81                         xi_client->minor_version, 2, 2) >= 0) {
     82         REQUEST_AT_LEAST_SIZE(xXI2_2AllowEventsReq);
     83         have_xi22 = TRUE;
     84     }
     85     else {
     86         REQUEST_AT_LEAST_SIZE(xXIAllowEventsReq);
     87     }
     88 
     89     ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
     90     if (ret != Success)
     91         return ret;
     92 
     93     time = ClientTimeToServerTime(stuff->time);
     94 
     95     switch (stuff->mode) {
     96     case XIReplayDevice:
     97         AllowSome(client, time, dev, NOT_GRABBED);
     98         break;
     99     case XISyncDevice:
    100         AllowSome(client, time, dev, FREEZE_NEXT_EVENT);
    101         break;
    102     case XIAsyncDevice:
    103         AllowSome(client, time, dev, THAWED);
    104         break;
    105     case XIAsyncPairedDevice:
    106         if (IsMaster(dev))
    107             AllowSome(client, time, dev, THAW_OTHERS);
    108         break;
    109     case XISyncPair:
    110         if (IsMaster(dev))
    111             AllowSome(client, time, dev, FREEZE_BOTH_NEXT_EVENT);
    112         break;
    113     case XIAsyncPair:
    114         if (IsMaster(dev))
    115             AllowSome(client, time, dev, THAWED_BOTH);
    116         break;
    117     case XIRejectTouch:
    118     case XIAcceptTouch:
    119     {
    120         int rc;
    121         WindowPtr win;
    122 
    123         if (!have_xi22)
    124             return BadValue;
    125 
    126         rc = dixLookupWindow(&win, stuff->grab_window, client, DixReadAccess);
    127         if (rc != Success)
    128             return rc;
    129 
    130         ret = TouchAcceptReject(client, dev, stuff->mode, stuff->touchid,
    131                                 stuff->grab_window, &client->errorValue);
    132     }
    133         break;
    134     default:
    135         client->errorValue = stuff->mode;
    136         ret = BadValue;
    137     }
    138 
    139     return ret;
    140 }