142 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 * Copyright © 2009 Red Hat, Inc.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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 * DEALINGS IN THE SOFTWARE.
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 *
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 * Author: Peter Hutterer
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 */
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/***********************************************************************
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 *
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 * Request to allow some device events.
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 *
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 */
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#include <dix-config.h>
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#include <X11/extensions/XI2.h>
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#include <X11/extensions/XI2proto.h>
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#include "dix/dix_priv.h"
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#include "dix/exevents_priv.h"
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#include "dix/input_priv.h"
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#include "inputstr.h"           /* DeviceIntPtr      */
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#include "windowstr.h"          /* window structure  */
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#include "mi.h"
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#include "eventstr.h"
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#include "exglobals.h"          /* BadDevice */
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#include "xiallowev.h"
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int _X_COLD
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SProcXIAllowEvents(ClientPtr client)
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{
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    REQUEST(xXIAllowEventsReq);
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    REQUEST_AT_LEAST_SIZE(xXIAllowEventsReq);
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    swaps(&stuff->length);
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    swaps(&stuff->deviceid);
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    swapl(&stuff->time);
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    if (stuff->length > 3) {
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        xXI2_2AllowEventsReq *req_xi22 = (xXI2_2AllowEventsReq *) stuff;
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        REQUEST_AT_LEAST_SIZE(xXI2_2AllowEventsReq);
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        swapl(&req_xi22->touchid);
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        swapl(&req_xi22->grab_window);
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    }
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    return ProcXIAllowEvents(client);
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}
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int
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ProcXIAllowEvents(ClientPtr client)
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{
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    TimeStamp time;
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    DeviceIntPtr dev;
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    int ret = Success;
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    XIClientPtr xi_client;
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    Bool have_xi22 = FALSE;
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    REQUEST(xXI2_2AllowEventsReq);
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    xi_client = dixLookupPrivate(&client->devPrivates, XIClientPrivateKey);
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    if (version_compare(xi_client->major_version,
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                        xi_client->minor_version, 2, 2) >= 0) {
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        REQUEST_AT_LEAST_SIZE(xXI2_2AllowEventsReq);
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        have_xi22 = TRUE;
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    }
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    else {
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        REQUEST_AT_LEAST_SIZE(xXIAllowEventsReq);
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    }
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    ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
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    if (ret != Success)
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        return ret;
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    time = ClientTimeToServerTime(stuff->time);
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    switch (stuff->mode) {
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    case XIReplayDevice:
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        AllowSome(client, time, dev, NOT_GRABBED);
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        break;
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    case XISyncDevice:
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        AllowSome(client, time, dev, FREEZE_NEXT_EVENT);
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        break;
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    case XIAsyncDevice:
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        AllowSome(client, time, dev, THAWED);
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        break;
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    case XIAsyncPairedDevice:
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        if (IsMaster(dev))
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            AllowSome(client, time, dev, THAW_OTHERS);
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        break;
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    case XISyncPair:
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        if (IsMaster(dev))
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            AllowSome(client, time, dev, FREEZE_BOTH_NEXT_EVENT);
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        break;
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    case XIAsyncPair:
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        if (IsMaster(dev))
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            AllowSome(client, time, dev, THAWED_BOTH);
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        break;
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    case XIRejectTouch:
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    case XIAcceptTouch:
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    {
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        int rc;
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        WindowPtr win;
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        if (!have_xi22)
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            return BadValue;
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        rc = dixLookupWindow(&win, stuff->grab_window, client, DixReadAccess);
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        if (rc != Success)
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            return rc;
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        ret = TouchAcceptReject(client, dev, stuff->mode, stuff->touchid,
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                                stuff->grab_window, &client->errorValue);
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    }
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        break;
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    default:
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        client->errorValue = stuff->mode;
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        ret = BadValue;
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    }
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    return ret;
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}
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