/* * Copyright © 2009 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Author: Peter Hutterer */ /*********************************************************************** * * Request to grab or ungrab input device. * */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include "inputstr.h" /* DeviceIntPtr */ #include "windowstr.h" /* window structure */ #include <X11/extensions/XI2.h> #include <X11/extensions/XI2proto.h> #include "exglobals.h" /* BadDevice */ #include "exevents.h" #include "xigrabdev.h" int SProcXIGrabDevice(ClientPtr client) { char n; REQUEST(xXIGrabDeviceReq); swaps(&stuff->length, n); swaps(&stuff->deviceid, n); swapl(&stuff->grab_window, n); swapl(&stuff->cursor, n); swapl(&stuff->time, n); swaps(&stuff->mask_len, n); return ProcXIGrabDevice(client); } int ProcXIGrabDevice(ClientPtr client) { DeviceIntPtr dev; xXIGrabDeviceReply rep; int ret = Success; uint8_t status; GrabMask mask; int mask_len; REQUEST(xXIGrabDeviceReq); REQUEST_AT_LEAST_SIZE(xXIGrabDeviceReq); ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess); if (ret != Success) return ret; if (!IsMaster(dev)) stuff->paired_device_mode = GrabModeAsync; if (XICheckInvalidMaskBits((unsigned char*)&stuff[1], stuff->mask_len * 4) != Success) return BadValue; mask_len = min(sizeof(mask.xi2mask[stuff->deviceid]), stuff->mask_len * 4); memset(mask.xi2mask, 0, sizeof(mask.xi2mask)); memcpy(mask.xi2mask, (char*)&stuff[1], mask_len); ret = GrabDevice(client, dev, stuff->grab_mode, stuff->paired_device_mode, stuff->grab_window, stuff->owner_events, stuff->time, &mask, GRABTYPE_XI2, stuff->cursor, None /* confineTo */, &status); if (ret != Success) return ret; rep.repType = X_Reply; rep.RepType = X_XIGrabDevice; rep.length = 0; rep.sequenceNumber = client->sequence; rep.status = status; WriteReplyToClient(client, sizeof(rep), &rep); return ret; } int SProcXIUngrabDevice(ClientPtr client) { char n; REQUEST(xXIUngrabDeviceReq); swaps(&stuff->length, n); swaps(&stuff->deviceid, n); swapl(&stuff->time, n); return ProcXIUngrabDevice(client); } int ProcXIUngrabDevice(ClientPtr client) { DeviceIntPtr dev; GrabPtr grab; int ret = Success; TimeStamp time; REQUEST(xXIUngrabDeviceReq); ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess); if (ret != Success) return ret; grab = dev->deviceGrab.grab; time = ClientTimeToServerTime(stuff->time); if ((CompareTimeStamps(time, currentTime) != LATER) && (CompareTimeStamps(time, dev->deviceGrab.grabTime) != EARLIER) && (grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_XI2) (*dev->deviceGrab.DeactivateGrab) (dev); return Success; } void SRepXIGrabDevice(ClientPtr client, int size, xXIGrabDeviceReply * rep) { char n; swaps(&rep->sequenceNumber, n); swapl(&rep->length, n); WriteToClient(client, size, (char *)rep); }