src/client/client.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "client.h"
  22
  23 #include "bufferinfo.h"
  24 #include "buffersyncer.h"
  25 #include "clientbacklogmanager.h"
  26 #include "clientirclisthelper.h"
  27 #include "bufferviewmanager.h"
  28 #include "global.h"
  29 #include "identity.h"
  30 #include "ircchannel.h"
  31 #include "ircuser.h"
  32 #include "message.h"
  33 #include "network.h"
  34 #include "networkmodel.h"
  35 #include "buffermodel.h"
  36 #include "quasselui.h"
  37 #include "signalproxy.h"
  38 #include "util.h"
  39 #include "buffersettings.h"
  40
  41 QPointer<Client> Client::instanceptr = 0;
  42 AccountId Client::_currentCoreAccount = 0;
  43
  44 /*** Initialization/destruction ***/
  45
  46 Client *Client::instance() {
  47   if(!instanceptr)
  48     instanceptr = new Client();
  49   return instanceptr;
  50 }
  51
  52 void Client::destroy() {
  53   //delete instanceptr;
  54   instanceptr->deleteLater();
  55 }
  56
  57 void Client::init(AbstractUi *ui) {
  58   instance()->mainUi = ui;
  59   instance()->init();
  60 }
  61
  62 Client::Client(QObject *parent)
  63   : QObject(parent),
  64     socket(0),
  65     _signalProxy(new SignalProxy(SignalProxy::Client, this)),
  66     mainUi(0),
  67     _networkModel(0),
  68     _bufferModel(0),
  69     _bufferSyncer(0),
  70     _backlogManager(new ClientBacklogManager(this)),
  71     _bufferViewManager(0),
  72     _ircListHelper(new ClientIrcListHelper(this)),
  73     _connectedToCore(false),
  74     _syncedToCore(false)
  75 {
  76   _monitorBuffer = new Buffer(BufferInfo(), this);
  77   _signalProxy->synchronize(_ircListHelper);
  78
  79   connect(_backlogManager, SIGNAL(backlog(BufferId, const QVariantList &)),
  80           this, SLOT(receiveBacklog(BufferId, const QVariantList &)));
  81 }
  82
  83 Client::~Client() {
  84   disconnectFromCore();
  85 }
  86
  87 void Client::init() {
  88   _currentCoreAccount = 0;
  89   _networkModel = new NetworkModel(this);
  90
  91   connect(this, SIGNAL(bufferUpdated(BufferInfo)),
  92           _networkModel, SLOT(bufferUpdated(BufferInfo)));
  93   connect(this, SIGNAL(networkRemoved(NetworkId)),
  94           _networkModel, SLOT(networkRemoved(NetworkId)));
  95
  96   _bufferModel = new BufferModel(_networkModel);
  97
  98   SignalProxy *p = signalProxy();
  99
 100   p->attachSlot(SIGNAL(displayMsg(const Message &)), this, SLOT(recvMessage(const Message &)));
 101   p->attachSlot(SIGNAL(displayStatusMsg(QString, QString)), this, SLOT(recvStatusMsg(QString, QString)));
 102
 103   p->attachSlot(SIGNAL(bufferInfoUpdated(BufferInfo)), this, SLOT(updateBufferInfo(BufferInfo)));
 104   p->attachSignal(this, SIGNAL(sendInput(BufferInfo, QString)));
 105   p->attachSignal(this, SIGNAL(requestNetworkStates()));
 106
 107   p->attachSignal(this, SIGNAL(requestCreateIdentity(const Identity &)), SIGNAL(createIdentity(const Identity &)));
 108   p->attachSignal(this, SIGNAL(requestUpdateIdentity(const Identity &)), SIGNAL(updateIdentity(const Identity &)));
 109   p->attachSignal(this, SIGNAL(requestRemoveIdentity(IdentityId)), SIGNAL(removeIdentity(IdentityId)));
 110   p->attachSlot(SIGNAL(identityCreated(const Identity &)), this, SLOT(coreIdentityCreated(const Identity &)));
 111   p->attachSlot(SIGNAL(identityRemoved(IdentityId)), this, SLOT(coreIdentityRemoved(IdentityId)));
 112
 113   p->attachSignal(this, SIGNAL(requestCreateNetwork(const NetworkInfo &)), SIGNAL(createNetwork(const NetworkInfo &)));
 114   p->attachSignal(this, SIGNAL(requestUpdateNetwork(const NetworkInfo &)), SIGNAL(updateNetwork(const NetworkInfo &)));
 115   p->attachSignal(this, SIGNAL(requestRemoveNetwork(NetworkId)), SIGNAL(removeNetwork(NetworkId)));
 116   p->attachSlot(SIGNAL(networkCreated(NetworkId)), this, SLOT(coreNetworkCreated(NetworkId)));
 117   p->attachSlot(SIGNAL(networkRemoved(NetworkId)), this, SLOT(coreNetworkRemoved(NetworkId)));
 118
 119   connect(p, SIGNAL(disconnected()), this, SLOT(disconnectFromCore()));
 120
 121   //connect(mainUi, SIGNAL(connectToCore(const QVariantMap &)), this, SLOT(connectToCore(const QVariantMap &)));
 122   connect(mainUi, SIGNAL(disconnectFromCore()), this, SLOT(disconnectFromCore()));
 123   connect(this, SIGNAL(connected()), mainUi, SLOT(connectedToCore()));
 124   connect(this, SIGNAL(disconnected()), mainUi, SLOT(disconnectedFromCore()));
 125
 126   layoutTimer = new QTimer(this);
 127   layoutTimer->setInterval(0);
 128   layoutTimer->setSingleShot(false);
 129   connect(layoutTimer, SIGNAL(timeout()), this, SLOT(layoutMsg()));
 130
 131 }
 132
 133 /*** public static methods ***/
 134
 135 AccountId Client::currentCoreAccount() {
 136   return _currentCoreAccount;
 137 }
 138
 139 void Client::setCurrentCoreAccount(AccountId id) {
 140   _currentCoreAccount = id;
 141 }
 142
 143 QList<BufferInfo> Client::allBufferInfos() {
 144   QList<BufferInfo> bufferids;
 145   foreach(Buffer *buffer, buffers()) {
 146     bufferids << buffer->bufferInfo();
 147   }
 148   return bufferids;
 149 }
 150
 151 QList<Buffer *> Client::buffers() {
 152   return instance()->_buffers.values();
 153 }
 154
 155
 156 Buffer *Client::statusBuffer(const NetworkId &networkId) const {
 157   if(_statusBuffers.contains(networkId))
 158     return _statusBuffers[networkId];
 159   else
 160     return 0;
 161 }
 162
 163 Buffer *Client::buffer(BufferId bufferId) {
 164   if(instance()->_buffers.contains(bufferId))
 165     return instance()->_buffers[bufferId];
 166   else
 167     return 0;
 168 }
 169
 170 Buffer *Client::buffer(BufferInfo bufferInfo) {
 171   Buffer *buff = buffer(bufferInfo.bufferId());
 172
 173   if(!buff) {
 174     Client *client = Client::instance();
 175     buff = new Buffer(bufferInfo, client);
 176     connect(buff, SIGNAL(destroyed()), client, SLOT(bufferDestroyed()));
 177     client->_buffers[bufferInfo.bufferId()] = buff;
 178     if(bufferInfo.type() == BufferInfo::StatusBuffer)
 179       client->_statusBuffers[bufferInfo.networkId()] = buff;
 180
 181     emit client->bufferUpdated(bufferInfo);
 182
 183     // I don't like this: but currently there isn't really a prettier way:
 184     if(isSynced()) {  // this slows down syncing a lot, so disable it during sync
 185       QModelIndex bufferIdx = networkModel()->bufferIndex(bufferInfo.bufferId());
 186       bufferModel()->setCurrentIndex(bufferModel()->mapFromSource(bufferIdx));
 187     }
 188   }
 189   Q_ASSERT(buff);
 190   return buff;
 191 }
 192
 193 bool Client::isConnected() {
 194   return instance()->_connectedToCore;
 195 }
 196
 197 bool Client::isSynced() {
 198   return instance()->_syncedToCore;
 199 }
 200
 201 /*** Network handling ***/
 202
 203 QList<NetworkId> Client::networkIds() {
 204   return instance()->_networks.keys();
 205 }
 206
 207 const Network * Client::network(NetworkId networkid) {
 208   if(instance()->_networks.contains(networkid)) return instance()->_networks[networkid];
 209   else return 0;
 210 }
 211
 212 void Client::createNetwork(const NetworkInfo &info) {
 213   emit instance()->requestCreateNetwork(info);
 214 }
 215
 216 void Client::updateNetwork(const NetworkInfo &info) {
 217   emit instance()->requestUpdateNetwork(info);
 218 }
 219
 220 void Client::removeNetwork(NetworkId id) {
 221   emit instance()->requestRemoveNetwork(id);
 222 }
 223
 224 void Client::addNetwork(Network *net) {
 225   net->setProxy(signalProxy());
 226   signalProxy()->synchronize(net);
 227   networkModel()->attachNetwork(net);
 228   connect(net, SIGNAL(destroyed()), instance(), SLOT(networkDestroyed()));
 229   instance()->_networks[net->networkId()] = net;
 230   emit instance()->networkCreated(net->networkId());
 231 }
 232
 233 void Client::coreNetworkCreated(NetworkId id) {
 234   if(_networks.contains(id)) {
 235     qWarning() << "Creation of already existing network requested!";
 236     return;
 237   }
 238   Network *net = new Network(id, this);
 239   addNetwork(net);
 240 }
 241
 242 void Client::coreNetworkRemoved(NetworkId id) {
 243   if(!_networks.contains(id))
 244     return;
 245   Network *net = _networks.take(id);
 246   emit networkRemoved(net->networkId());
 247   net->deleteLater();
 248 }
 249
 250 /*** Identity handling ***/
 251
 252 QList<IdentityId> Client::identityIds() {
 253   return instance()->_identities.keys();
 254 }
 255
 256 const Identity * Client::identity(IdentityId id) {
 257   if(instance()->_identities.contains(id)) return instance()->_identities[id];
 258   else return 0;
 259 }
 260
 261 void Client::createIdentity(const Identity &id) {
 262   emit instance()->requestCreateIdentity(id);
 263 }
 264
 265 void Client::updateIdentity(const Identity &id) {
 266   emit instance()->requestUpdateIdentity(id);
 267 }
 268
 269 void Client::removeIdentity(IdentityId id) {
 270   emit instance()->requestRemoveIdentity(id);
 271 }
 272
 273 void Client::coreIdentityCreated(const Identity &other) {
 274   if(!_identities.contains(other.id())) {
 275     Identity *identity = new Identity(other, this);
 276     _identities[other.id()] = identity;
 277     identity->setInitialized();
 278     signalProxy()->synchronize(identity);
 279     emit identityCreated(other.id());
 280   } else {
 281     qWarning() << tr("Identity already exists in client!");
 282   }
 283 }
 284
 285 void Client::coreIdentityRemoved(IdentityId id) {
 286   if(_identities.contains(id)) {
 287     emit identityRemoved(id);
 288     Identity *i = _identities.take(id);
 289     i->deleteLater();
 290   }
 291 }
 292
 293 /***  ***/
 294 void Client::userInput(BufferInfo bufferInfo, QString message) {
 295   emit instance()->sendInput(bufferInfo, message);
 296 }
 297
 298 /*** core connection stuff ***/
 299
 300 void Client::setConnectedToCore(QIODevice *sock, AccountId id) {
 301   socket = sock;
 302   signalProxy()->addPeer(socket);
 303   _connectedToCore = true;
 304   setCurrentCoreAccount(id);
 305 }
 306
 307 void Client::setSyncedToCore() {
 308   // create buffersyncer
 309   Q_ASSERT(!_bufferSyncer);
 310   _bufferSyncer = new BufferSyncer(this);
 311   connect(bufferSyncer(), SIGNAL(lastSeenMsgSet(BufferId, MsgId)), this, SLOT(updateLastSeenMsg(BufferId, MsgId)));
 312   connect(bufferSyncer(), SIGNAL(bufferRemoved(BufferId)), this, SLOT(bufferRemoved(BufferId)));
 313   connect(bufferSyncer(), SIGNAL(bufferRenamed(BufferId, QString)), this, SLOT(bufferRenamed(BufferId, QString)));
 314   signalProxy()->synchronize(bufferSyncer());
 315
 316   // attach backlog manager
 317   signalProxy()->synchronize(backlogManager());
 318
 319   // create a new BufferViewManager
 320   _bufferViewManager = new BufferViewManager(signalProxy(), this);
 321
 322   _syncedToCore = true;
 323   emit connected();
 324   emit coreConnectionStateChanged(true);
 325 }
 326
 327 void Client::setSecuredConnection() {
 328   emit securedConnection();
 329 }
 330
 331 void Client::disconnectFromCore() {
 332   if(!isConnected())
 333     return;
 334   _connectedToCore = false;
 335
 336   if(socket) {
 337     socket->close();
 338     socket->deleteLater();
 339   }
 340   _syncedToCore = false;
 341   emit disconnected();
 342   emit coreConnectionStateChanged(false);
 343
 344   // Clear internal data. Hopefully nothing relies on it at this point.
 345   setCurrentCoreAccount(0);
 346
 347   if(_bufferSyncer) {
 348     _bufferSyncer->deleteLater();
 349     _bufferSyncer = 0;
 350   }
 351
 352   if(_bufferViewManager) {
 353     _bufferViewManager->deleteLater();
 354     _bufferViewManager = 0;
 355   }
 356
 357   _networkModel->clear();
 358
 359   QHash<BufferId, Buffer *>::iterator bufferIter =  _buffers.begin();
 360   while(bufferIter != _buffers.end()) {
 361     Buffer *buffer = bufferIter.value();
 362     disconnect(buffer, SIGNAL(destroyed()), this, 0);
 363     bufferIter = _buffers.erase(bufferIter);
 364     buffer->deleteLater();
 365   }
 366   Q_ASSERT(_buffers.isEmpty());
 367
 368   _statusBuffers.clear();
 369
 370   QHash<NetworkId, Network*>::iterator netIter = _networks.begin();
 371   while(netIter != _networks.end()) {
 372     Network *net = netIter.value();
 373     emit networkRemoved(net->networkId());
 374     disconnect(net, SIGNAL(destroyed()), this, 0);
 375     netIter = _networks.erase(netIter);
 376     net->deleteLater();
 377   }
 378   Q_ASSERT(_networks.isEmpty());
 379
 380   QHash<IdentityId, Identity*>::iterator idIter = _identities.begin();
 381   while(idIter != _identities.end()) {
 382     Identity *id = idIter.value();
 383     emit identityRemoved(id->id());
 384     idIter = _identities.erase(idIter);
 385     id->deleteLater();
 386   }
 387   Q_ASSERT(_identities.isEmpty());
 388
 389   layoutQueue.clear();
 390   layoutTimer->stop();
 391 }
 392
 393 void Client::setCoreConfiguration(const QVariantMap &settings) {
 394   SignalProxy::writeDataToDevice(socket, settings);
 395 }
 396
 397 /*** ***/
 398
 399 void Client::updateBufferInfo(BufferInfo id) {
 400   emit bufferUpdated(id);
 401 }
 402
 403 void Client::bufferDestroyed() {
 404   Buffer *buffer = static_cast<Buffer *>(sender());
 405   QHash<BufferId, Buffer *>::iterator iter = _buffers.begin();
 406   while(iter != _buffers.end()) {
 407     if(iter.value() == buffer) {
 408       iter = _buffers.erase(iter);
 409       break;
 410     }
 411     iter++;
 412   }
 413
 414   QHash<NetworkId, Buffer *>::iterator statusIter = _statusBuffers.begin();
 415   while(statusIter != _statusBuffers.end()) {
 416     if(statusIter.value() == buffer) {
 417       statusIter = _statusBuffers.erase(statusIter);
 418       break;
 419     }
 420     statusIter++;
 421   }
 422 }
 423
 424 void Client::networkDestroyed() {
 425   Network *net = static_cast<Network *>(sender());
 426   QHash<NetworkId, Network *>::iterator netIter = _networks.begin();
 427   while(netIter != _networks.end()) {
 428     if(*netIter == net) {
 429       netIter = _networks.erase(netIter);
 430       break;
 431     } else {
 432       netIter++;
 433     }
 434   }
 435 }
 436
 437 void Client::recvMessage(const Message &message) {
 438   Message msg = message;
 439   Buffer *b;
 440
 441   checkForHighlight(msg);
 442
 443   // FIXME clean up code! (dup)
 444
 445   if(msg.flags() & Message::Redirected) {
 446     BufferSettings bufferSettings;
 447     bool inStatus = bufferSettings.value("UserMessagesInStatusBuffer", QVariant(true)).toBool();
 448     bool inQuery = bufferSettings.value("UserMessagesInQueryBuffer", QVariant(false)).toBool();
 449     bool inCurrent = bufferSettings.value("UserMessagesInCurrentBuffer", QVariant(false)).toBool();
 450
 451     if(inStatus) {
 452       b = statusBuffer(msg.bufferInfo().networkId());
 453       if(b) {
 454         b->appendMsg(msg);
 455       } else if(!inQuery && !inCurrent) {       // make sure the message get's shown somewhere
 456         b = buffer(msg.bufferInfo());
 457         b->appendMsg(msg);
 458       }
 459     }
 460
 461     if(inQuery) {
 462       b = buffer(msg.bufferInfo().bufferId());
 463       if(b) {
 464         b->appendMsg(msg);
 465       } else if(!inStatus && !inCurrent) { // make sure the message get's shown somewhere
 466         b = statusBuffer(msg.bufferInfo().networkId());
 467       if(!b) b = buffer(msg.bufferInfo()); // seems like we have to create the buffer anyways...
 468       b->appendMsg(msg);
 469       }
 470     }
 471
 472     if(inCurrent) {
 473       BufferId currentId = bufferModel()->currentIndex().data(NetworkModel::BufferIdRole).value<BufferId>();
 474       b = buffer(currentId);
 475       if(b && currentId != msg.bufferInfo().bufferId() && !inQuery) {
 476         b->appendMsg(msg);
 477       } else if(!inStatus && !inQuery) {        // make sure the message get's shown somewhere
 478         b = statusBuffer(msg.bufferInfo().networkId());
 479         if(!b) b = buffer(msg.bufferInfo()); // seems like we have to create the buffer anyways...
 480         b->appendMsg(msg);
 481       }
 482     }
 483   } else {
 484     // the regular case: we can deliver where it was supposed to go
 485     b = buffer(msg.bufferInfo());
 486     b->appendMsg(msg);
 487   }
 488
 489   //bufferModel()->updateBufferActivity(msg);
 490
 491   if(msg.type() == Message::Plain || msg.type() == Message::Notice || msg.type() == Message::Action) {
 492     const Network *net = network(msg.bufferInfo().networkId());
 493     QString networkName = net != 0
 494       ? net->networkName() + ":"
 495       : QString();
 496     QString sender = networkName + msg.bufferInfo().bufferName() + ":" + msg.sender();
 497     Message mmsg = Message(msg.timestamp(), msg.bufferInfo(), msg.type(), msg.text(), sender, msg.flags());
 498     monitorBuffer()->appendMsg(mmsg);
 499   }
 500
 501   emit messageReceived(msg);
 502 }
 503
 504 void Client::recvStatusMsg(QString /*net*/, QString /*msg*/) {
 505   //recvMessage(net, Message::server("", QString("[STATUS] %1").arg(msg)));
 506 }
 507
 508 void Client::receiveBacklog(BufferId bufferId, const QVariantList &msgs) {
 509   Buffer *buffer_ = buffer(bufferId);
 510   if(!buffer_) {
 511     qWarning() << "Client::receiveBacklog(): received Backlog for unknown Buffer:" << bufferId;
 512     return;
 513   }
 514
 515   if(msgs.isEmpty())
 516     return; // no work to be done...
 517
 518   QVariantList::const_iterator msgIter = msgs.constBegin();
 519   QVariantList::const_iterator msgIterEnd = msgs.constEnd();
 520   Message msg;
 521   while(msgIter != msgIterEnd) {
 522     msg = (*msgIter).value<Message>();
 523     checkForHighlight(msg);
 524     buffer_->prependMsg(msg);
 525     msgIter++;
 526   }
 527
 528   if(!layoutQueue.contains(buffer_))
 529     layoutQueue.append(buffer_);
 530
 531   if(!layoutTimer->isActive()) {
 532     layoutTimer->start();
 533   }
 534 }
 535
 536 void Client::layoutMsg() {
 537   if(layoutQueue.isEmpty()) {
 538     layoutTimer->stop();
 539     return;
 540   }
 541
 542   Buffer *buffer = layoutQueue.takeFirst();
 543   if(buffer->layoutMsg()) {
 544     layoutQueue.append(buffer);  // Buffer has more messages in its queue --> Round Robin
 545     return;
 546   }
 547
 548   if(layoutQueue.isEmpty())
 549     layoutTimer->stop();
 550 }
 551
 552 AbstractUiMsg *Client::layoutMsg(const Message &msg) {
 553   return instance()->mainUi->layoutMsg(msg);
 554 }
 555
 556 void Client::checkForHighlight(Message &msg) {
 557   NotificationSettings notificationSettings;
 558   const Network *net = network(msg.bufferInfo().networkId());
 559   if(net && !net->myNick().isEmpty()) {
 560     QStringList nickList;
 561     if(notificationSettings.highlightNick() == NotificationSettings::CurrentNick) {
 562       nickList << net->myNick();
 563     } else if(notificationSettings.highlightNick() == NotificationSettings::AllNicks) {
 564       nickList = identity(net->identity())->nicks();
 565     }
 566     foreach(QString nickname, nickList) {
 567       QRegExp nickRegExp("^(.*\\W)?" + QRegExp::escape(nickname) + "(\\W.*)?$");
 568       if((msg.type() & (Message::Plain | Message::Notice | Message::Action))
 569           && !(msg.flags() & Message::Self)
 570           && nickRegExp.exactMatch(msg.text())) {
 571         msg.setFlags(msg.flags() | Message::Highlight);
 572         return;
 573       }
 574     }
 575
 576     foreach(QVariant highlight, notificationSettings.highlightList()) {
 577       QVariantMap highlightRule = highlight.toMap();
 578       if(!highlightRule["enable"].toBool())
 579         continue;
 580       Qt::CaseSensitivity caseSensitivity = highlightRule["cs"].toBool() ? Qt::CaseSensitive : Qt::CaseInsensitive;
 581       QString name = highlightRule["name"].toString();
 582       QRegExp userRegExp;
 583       if(highlightRule["regex"].toBool()) {
 584         userRegExp = QRegExp(name, caseSensitivity);
 585       } else {
 586         userRegExp = QRegExp("^(.*\\W)?" + QRegExp::escape(name) + "(\\W.*)?$", caseSensitivity);
 587       }
 588       if((msg.type() & (Message::Plain | Message::Notice | Message::Action))
 589           && !(msg.flags() & Message::Self)
 590           && userRegExp.exactMatch(msg.text())) {
 591         msg.setFlags(msg.flags() | Message::Highlight);
 592         return;
 593       }
 594     }
 595   }
 596 }
 597
 598 void Client::updateLastSeenMsg(BufferId id, const MsgId &msgId) {
 599   Buffer *b = buffer(id);
 600   if(!b) {
 601     qWarning() << "Client::updateLastSeen(): Unknown buffer" << id;
 602     return;
 603   }
 604   b->setLastSeenMsg(msgId);
 605 }
 606
 607 void Client::setBufferLastSeenMsg(BufferId id, const MsgId &msgId) {
 608   if(!bufferSyncer())
 609     return;
 610   bufferSyncer()->requestSetLastSeenMsg(id, msgId);
 611 }
 612
 613 void Client::removeBuffer(BufferId id) {
 614   if(!bufferSyncer()) return;
 615   bufferSyncer()->requestRemoveBuffer(id);
 616 }
 617
 618 void Client::bufferRemoved(BufferId bufferId) {
 619   // first remove the buffer from hash. this prohibits further lastSeenUpdates
 620   Buffer *buff = 0;
 621   if(_buffers.contains(bufferId)) {
 622     buff = _buffers.take(bufferId);
 623     layoutQueue.removeAll(buff);
 624     disconnect(buff, 0, this, 0);
 625   }
 626
 627   // then we select a sane buffer (status buffer)
 628   /* we have to manually select a buffer because otherwise inconsitent changes
 629    * to the model might occur:
 630    * the result of a buffer removal triggers a change in the selection model.
 631    * the newly selected buffer might be a channel that hasn't been selected yet
 632    * and a new nickview would be created (which never heard of the "rowsAboutToBeRemoved").
 633    * this new view (and/or) its sort filter will then only receive a "rowsRemoved" signal.
 634    */
 635   QModelIndex current = bufferModel()->currentIndex();
 636   if(current.data(NetworkModel::BufferIdRole).value<BufferId>() == bufferId) {
 637     bufferModel()->setCurrentIndex(current.sibling(0,0));
 638   }
 639
 640   // and remove it from the model
 641   networkModel()->removeBuffer(bufferId);
 642
 643   if(buff)
 644     buff->deleteLater();
 645 }
 646
 647 void Client::bufferRenamed(BufferId bufferId, const QString &newName) {
 648   QModelIndex bufferIndex = networkModel()->bufferIndex(bufferId);
 649   if(bufferIndex.isValid()) {
 650     networkModel()->setData(bufferIndex, newName, Qt::DisplayRole);
 651   }
 652 }