From a915739887477b28d924ecc8417ee107d125bd6c Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 6 Sep 2009 18:48:27 +0000 Subject: Switched to xorg-server-1.6.99.900.tar.gz --- xorg-server/Xi/xichangehierarchy.c | 454 +++++++++++++++++++++++++++++++++++++ 1 file changed, 454 insertions(+) create mode 100644 xorg-server/Xi/xichangehierarchy.c (limited to 'xorg-server/Xi/xichangehierarchy.c') diff --git a/xorg-server/Xi/xichangehierarchy.c b/xorg-server/Xi/xichangehierarchy.c new file mode 100644 index 000000000..1a06e4555 --- /dev/null +++ b/xorg-server/Xi/xichangehierarchy.c @@ -0,0 +1,454 @@ +/* + * Copyright 2007-2008 Peter Hutterer + * 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, University of South Australia, NICTA + */ + +/*********************************************************************** + * + * Request change in the device hierarchy. + * + */ + + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include /* for inputstr.h */ +#include /* Request macro */ +#include "inputstr.h" /* DeviceIntPtr */ +#include "windowstr.h" /* window structure */ +#include "scrnintstr.h" /* screen structure */ +#include +#include +#include +#include "extnsionst.h" +#include "exevents.h" +#include "exglobals.h" +#include "geext.h" +#include "xace.h" +#include "xiquerydevice.h" /* for GetDeviceUse */ + +#include "xkbsrv.h" + +#include "xichangehierarchy.h" + +/** + * Send the current state of the device hierarchy to all clients. + */ +void XISendDeviceHierarchyEvent(int flags[MAXDEVICES]) +{ + xXIHierarchyEvent *ev; + xXIHierarchyInfo *info; + DeviceIntRec dummyDev; + DeviceIntPtr dev; + int i; + + if (!flags) + return; + + ev = xcalloc(1, sizeof(xXIHierarchyEvent) + + MAXDEVICES * sizeof(xXIHierarchyInfo)); + ev->type = GenericEvent; + ev->extension = IReqCode; + ev->evtype = XI_HierarchyChanged; + ev->time = GetTimeInMillis(); + ev->flags = 0; + ev->num_info = inputInfo.numDevices; + + info = (xXIHierarchyInfo*)&ev[1]; + for (dev = inputInfo.devices; dev; dev = dev->next) + { + info->deviceid = dev->id; + info->enabled = dev->enabled; + info->use = GetDeviceUse(dev, &info->attachment); + info->flags = flags[dev->id]; + ev->flags |= info->flags; + info++; + } + for (dev = inputInfo.off_devices; dev; dev = dev->next) + { + info->deviceid = dev->id; + info->enabled = dev->enabled; + info->use = GetDeviceUse(dev, &info->attachment); + info->flags = flags[dev->id]; + ev->flags |= info->flags; + info++; + } + + + for (i = 0; i < MAXDEVICES; i++) + { + if (flags[i] & (XIMasterRemoved | XISlaveRemoved)) + { + info->deviceid = i; + info->enabled = FALSE; + info->flags = flags[i]; + info->use = 0; + ev->flags |= info->flags; + ev->num_info++; + info++; + } + } + + ev->length = bytes_to_int32(ev->num_info * sizeof(xXIHierarchyInfo)); + + dummyDev.id = XIAllDevices; + SendEventToAllWindows(&dummyDev, (XI_HierarchyChangedMask >> 8), (xEvent*)ev, 1); + xfree(ev); +} + + +/*********************************************************************** + * + * This procedure allows a client to change the device hierarchy through + * adding new master devices, removing them, etc. + * + */ + +int SProcXIChangeHierarchy(ClientPtr client) +{ + char n; + + REQUEST(xXIChangeHierarchyReq); + swaps(&stuff->length, n); + return (ProcXIChangeHierarchy(client)); +} + +#define SWAPIF(cmd) if (client->swapped) { cmd; } + +int +ProcXIChangeHierarchy(ClientPtr client) +{ + DeviceIntPtr ptr, keybd, XTestptr, XTestkeybd; + xXIAnyHierarchyChangeInfo *any; + int required_len = sizeof(xXIChangeHierarchyReq); + char n; + int rc = Success; + int flags[MAXDEVICES] = {0}; + + REQUEST(xXIChangeHierarchyReq); + REQUEST_AT_LEAST_SIZE(xXIChangeHierarchyReq); + + if (!stuff->num_changes) + return rc; + + any = (xXIAnyHierarchyChangeInfo*)&stuff[1]; + while(stuff->num_changes--) + { + SWAPIF(swapl(&any->type, n)); + SWAPIF(swaps(&any->length, n)); + + required_len += any->length; + if ((stuff->length * 4) < required_len) + return BadLength; + + switch(any->type) + { + case XIAddMaster: + { + xXIAddMasterInfo* c = (xXIAddMasterInfo*)any; + char* name; + + SWAPIF(swaps(&c->name_len, n)); + name = xcalloc(c->name_len + 1, sizeof(char)); + strncpy(name, (char*)&c[1], c->name_len); + + + rc = AllocDevicePair(client, name, &ptr, &keybd, + CorePointerProc, CoreKeyboardProc, + TRUE); + if (rc != Success) + { + xfree(name); + goto unwind; + } + + if (!c->send_core) + ptr->coreEvents = keybd->coreEvents = FALSE; + + /* Allocate virtual slave devices for xtest events */ + rc = AllocXTestDevice(client, name, &XTestptr, &XTestkeybd, + ptr, keybd); + if (rc != Success) + { + + xfree(name); + goto unwind; + } + + ActivateDevice(ptr, FALSE); + ActivateDevice(keybd, FALSE); + flags[ptr->id] |= XIMasterAdded; + flags[keybd->id] |= XIMasterAdded; + + ActivateDevice(XTestptr, FALSE); + ActivateDevice(XTestkeybd, FALSE); + flags[XTestptr->id] |= XISlaveAdded; + flags[XTestkeybd->id] |= XISlaveAdded; + + if (c->enable) + { + EnableDevice(ptr, FALSE); + EnableDevice(keybd, FALSE); + flags[ptr->id] |= XIDeviceEnabled; + flags[keybd->id] |= XIDeviceEnabled; + + EnableDevice(XTestptr, FALSE); + EnableDevice(XTestkeybd, FALSE); + flags[XTestptr->id] |= XIDeviceEnabled; + flags[XTestkeybd->id] |= XIDeviceEnabled; + } + + /* Attach the XTest virtual devices to the newly + created master device */ + AttachDevice(NULL, XTestptr, ptr); + AttachDevice(NULL, XTestkeybd, keybd); + flags[XTestptr->id] |= XISlaveAttached; + flags[XTestkeybd->id] |= XISlaveAttached; + + xfree(name); + } + break; + case XIRemoveMaster: + { + xXIRemoveMasterInfo* r = (xXIRemoveMasterInfo*)any; + + if (r->return_mode != XIAttachToMaster && + r->return_mode != XIFloating) + return BadValue; + + rc = dixLookupDevice(&ptr, r->deviceid, client, + DixDestroyAccess); + if (rc != Success) + goto unwind; + + if (!IsMaster(ptr)) + { + client->errorValue = r->deviceid; + rc = BadDevice; + goto unwind; + } + + /* XXX: For now, don't allow removal of VCP, VCK */ + if (ptr == inputInfo.pointer || + ptr == inputInfo.keyboard) + { + rc = BadDevice; + goto unwind; + } + + + ptr = GetMaster(ptr, MASTER_POINTER); + rc = dixLookupDevice(&ptr, + ptr->id, + client, + DixDestroyAccess); + if (rc != Success) + goto unwind; + keybd = GetMaster(ptr, MASTER_KEYBOARD); + rc = dixLookupDevice(&keybd, + keybd->id, + client, + DixDestroyAccess); + if (rc != Success) + goto unwind; + + XTestptr = GetXTestDevice(ptr); + rc = dixLookupDevice(&XTestptr, XTestptr->id, client, + DixDestroyAccess); + if (rc != Success) + goto unwind; + + XTestkeybd = GetXTestDevice(keybd); + rc = dixLookupDevice(&XTestkeybd, XTestkeybd->id, client, + DixDestroyAccess); + if (rc != Success) + goto unwind; + + /* Disabling sends the devices floating, reattach them if + * desired. */ + if (r->return_mode == XIAttachToMaster) + { + DeviceIntPtr attached, + newptr, + newkeybd; + + rc = dixLookupDevice(&newptr, r->return_pointer, + client, DixAddAccess); + if (rc != Success) + goto unwind; + + if (!IsMaster(newptr)) + { + client->errorValue = r->return_pointer; + rc = BadDevice; + goto unwind; + } + + rc = dixLookupDevice(&newkeybd, r->return_keyboard, + client, DixAddAccess); + if (rc != Success) + goto unwind; + + if (!IsMaster(newkeybd)) + { + client->errorValue = r->return_keyboard; + rc = BadDevice; + goto unwind; + } + + for (attached = inputInfo.devices; + attached; + attached = attached->next) + { + if (!IsMaster(attached)) { + if (attached->u.master == ptr) + { + AttachDevice(client, attached, newptr); + flags[attached->id] |= XISlaveAttached; + } + if (attached->u.master == keybd) + { + AttachDevice(client, attached, newkeybd); + flags[attached->id] |= XISlaveAttached; + } + } + } + } + + /* can't disable until we removed pairing */ + keybd->spriteInfo->paired = NULL; + ptr->spriteInfo->paired = NULL; + XTestptr->spriteInfo->paired = NULL; + XTestkeybd->spriteInfo->paired = NULL; + + /* disable the remove the devices, XTest devices must be done first + else the sprites they rely on will be destroyed */ + DisableDevice(XTestptr, FALSE); + DisableDevice(XTestkeybd, FALSE); + DisableDevice(keybd, FALSE); + DisableDevice(ptr, FALSE); + flags[XTestptr->id] |= XIDeviceDisabled | XISlaveDetached; + flags[XTestkeybd->id] |= XIDeviceDisabled | XISlaveDetached; + flags[keybd->id] |= XIDeviceDisabled; + flags[ptr->id] |= XIDeviceDisabled; + + RemoveDevice(XTestptr, FALSE); + RemoveDevice(XTestkeybd, FALSE); + RemoveDevice(keybd, FALSE); + RemoveDevice(ptr, FALSE); + flags[XTestptr->id] |= XISlaveRemoved; + flags[XTestkeybd->id] |= XISlaveRemoved; + flags[keybd->id] |= XIMasterRemoved; + flags[ptr->id] |= XIMasterRemoved; + } + break; + case XIDetachSlave: + { + xXIDetachSlaveInfo* c = (xXIDetachSlaveInfo*)any; + + rc = dixLookupDevice(&ptr, c->deviceid, client, + DixManageAccess); + if (rc != Success) + goto unwind; + + if (IsMaster(ptr)) + { + client->errorValue = c->deviceid; + rc = BadDevice; + goto unwind; + } + + /* Don't allow changes to XTest Devices, these are fixed */ + if (IsXTestDevice(ptr, NULL)) + { + client->errorValue = c->deviceid; + rc = BadDevice; + goto unwind; + } + + AttachDevice(client, ptr, NULL); + flags[ptr->id] |= XISlaveDetached; + } + break; + case XIAttachSlave: + { + xXIAttachSlaveInfo* c = (xXIAttachSlaveInfo*)any; + DeviceIntPtr newmaster; + + rc = dixLookupDevice(&ptr, c->deviceid, client, + DixManageAccess); + if (rc != Success) + goto unwind; + + if (IsMaster(ptr)) + { + client->errorValue = c->deviceid; + rc = BadDevice; + goto unwind; + } + + /* Don't allow changes to XTest Devices, these are fixed */ + if (IsXTestDevice(ptr, NULL)) + { + client->errorValue = c->deviceid; + rc = BadDevice; + goto unwind; + } + + rc = dixLookupDevice(&newmaster, c->new_master, + client, DixAddAccess); + if (rc != Success) + goto unwind; + if (!IsMaster(newmaster)) + { + client->errorValue = c->new_master; + rc = BadDevice; + goto unwind; + } + + if (!((IsPointerDevice(newmaster) && + IsPointerDevice(ptr)) || + (IsKeyboardDevice(newmaster) && + IsKeyboardDevice(ptr)))) + { + rc = BadDevice; + goto unwind; + } + AttachDevice(client, ptr, newmaster); + flags[ptr->id] |= XISlaveAttached; + } + break; + } + + any = (xXIAnyHierarchyChangeInfo*)((char*)any + any->length * 4); + } + +unwind: + + XISendDeviceHierarchyEvent(flags); + return rc; +} + -- cgit v1.2.3