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https://github.com/X11Libre/xserver.git
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4395caee14
Use the new macros to make request struct parsing / field swapping much easier. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
144 lines
4.3 KiB
C
144 lines
4.3 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 "dix/request_priv.h"
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#include "os/fmt.h"
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#include "Xi/handlers.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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int
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ProcXIAllowEvents(ClientPtr client)
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{
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Bool have_xi22 = FALSE;
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CARD32 clientTime;
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int deviceId;
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int mode;
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Window grabWindow = 0;
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uint32_t touchId = 0;
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XIClientPtr xi_client = XIClientPriv(client);
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if (!xi_client)
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return BadImplementation;
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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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// Xi >= v2.2 request
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X_REQUEST_HEAD_AT_LEAST(xXI2_2AllowEventsReq);
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X_REQUEST_FIELD_CARD16(deviceid);
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X_REQUEST_FIELD_CARD32(time);
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X_REQUEST_FIELD_CARD32(touchid);
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X_REQUEST_FIELD_CARD32(grab_window);
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have_xi22 = TRUE;
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clientTime = stuff->time;
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deviceId = stuff->deviceid;
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mode = stuff->mode;
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grabWindow = stuff->grab_window;
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touchId = stuff->touchid;
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}
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else {
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// Xi < v2.2 request
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X_REQUEST_HEAD_AT_LEAST(xXIAllowEventsReq);
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X_REQUEST_FIELD_CARD16(deviceid);
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X_REQUEST_FIELD_CARD32(time);
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clientTime = stuff->time;
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deviceId = stuff->deviceid;
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mode = stuff->mode;
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}
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DeviceIntPtr dev;
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int ret = dixLookupDevice(&dev, deviceId, client, DixGetAttrAccess);
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if (ret != Success)
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return ret;
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TimeStamp time = ClientTimeToServerTime(clientTime);
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switch (mode) {
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case XIReplayDevice:
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AllowSome(client, time, dev, GRAB_STATE_NOT_GRABBED);
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break;
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case XISyncDevice:
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AllowSome(client, time, dev, GRAB_STATE_FREEZE_NEXT_EVENT);
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break;
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case XIAsyncDevice:
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AllowSome(client, time, dev, GRAB_STATE_THAWED);
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break;
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case XIAsyncPairedDevice:
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if (InputDevIsMaster(dev))
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AllowSome(client, time, dev, GRAB_STATE_THAW_OTHERS);
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break;
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case XISyncPair:
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if (InputDevIsMaster(dev))
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AllowSome(client, time, dev, GRAB_STATE_FREEZE_BOTH_NEXT_EVENT);
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break;
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case XIAsyncPair:
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if (InputDevIsMaster(dev))
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AllowSome(client, time, dev, GRAB_STATE_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, grabWindow, client, DixReadAccess);
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if (rc != Success)
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return rc;
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ret = TouchAcceptReject(client, dev, mode, touchId,
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grabWindow, &client->errorValue);
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}
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break;
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default:
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client->errorValue = 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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