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 "buffermodel.h"
  25 #include "buffersettings.h"
  26 #include "buffersyncer.h"
  27 #include "bufferviewmanager.h"
  28 #include "clientbacklogmanager.h"
  29 #include "global.h"
  30 #include "identity.h"
  31 #include "ircchannel.h"
  32 #include "ircuser.h"
  33 #include "message.h"
  34 #ifdef SPUTDEV
  35 # include "messagemodel.h"
  36 #endif
  37 #include "network.h"
  38 #include "networkmodel.h"
  39 #include "quasselui.h"
  40 #include "signalproxy.h"
  41 #include "util.h"
  42
  43 QPointer<Client> Client::instanceptr = 0;
  44 AccountId Client::_currentCoreAccount = 0;
  45
  46 /*** Initialization/destruction ***/
  47
  48 Client *Client::instance() {
  49   if(!instanceptr)
  50     instanceptr = new Client();
  51   return instanceptr;
  52 }
  53
  54 void Client::destroy() {
  55   //delete instanceptr;
  56   instanceptr->deleteLater();
  57 }
  58
  59 void Client::init(AbstractUi *ui) {
  60   instance()->mainUi = ui;
  61   instance()->init();
  62 }
  63
  64 Client::Client(QObject *parent)
  65   : QObject(parent),
  66     socket(0),
  67     _signalProxy(new SignalProxy(SignalProxy::Client, this)),
  68     mainUi(0),
  69     _networkModel(0),
  70     _bufferModel(0),
  71     _bufferSyncer(0),
  72     _backlogManager(new ClientBacklogManager(this)),
  73     _bufferViewManager(0),
  74     _messageModel(0),
  75     _connectedToCore(false),
  76     _syncedToCore(false)
  77 {
  78   _monitorBuffer = new Buffer(BufferInfo(), this);
  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 #ifdef SPUTDEV
  98   _messageModel = new MessageModel(this);
  99 #endif
 100   SignalProxy *p = signalProxy();
 101
 102   p->attachSlot(SIGNAL(displayMsg(const Message &)), this, SLOT(recvMessage(const Message &)));
 103   p->attachSlot(SIGNAL(displayStatusMsg(QString, QString)), this, SLOT(recvStatusMsg(QString, QString)));
 104
 105   p->attachSlot(SIGNAL(bufferInfoUpdated(BufferInfo)), this, SLOT(updateBufferInfo(BufferInfo)));
 106   p->attachSignal(this, SIGNAL(sendInput(BufferInfo, QString)));
 107   p->attachSignal(this, SIGNAL(requestNetworkStates()));
 108
 109   p->attachSignal(this, SIGNAL(requestCreateIdentity(const Identity &)), SIGNAL(createIdentity(const Identity &)));
 110   p->attachSignal(this, SIGNAL(requestUpdateIdentity(const Identity &)), SIGNAL(updateIdentity(const Identity &)));
 111   p->attachSignal(this, SIGNAL(requestRemoveIdentity(IdentityId)), SIGNAL(removeIdentity(IdentityId)));
 112   p->attachSlot(SIGNAL(identityCreated(const Identity &)), this, SLOT(coreIdentityCreated(const Identity &)));
 113   p->attachSlot(SIGNAL(identityRemoved(IdentityId)), this, SLOT(coreIdentityRemoved(IdentityId)));
 114
 115   p->attachSignal(this, SIGNAL(requestCreateNetwork(const NetworkInfo &)), SIGNAL(createNetwork(const NetworkInfo &)));
 116   p->attachSignal(this, SIGNAL(requestUpdateNetwork(const NetworkInfo &)), SIGNAL(updateNetwork(const NetworkInfo &)));
 117   p->attachSignal(this, SIGNAL(requestRemoveNetwork(NetworkId)), SIGNAL(removeNetwork(NetworkId)));
 118   p->attachSlot(SIGNAL(networkCreated(NetworkId)), this, SLOT(coreNetworkCreated(NetworkId)));
 119   p->attachSlot(SIGNAL(networkRemoved(NetworkId)), this, SLOT(coreNetworkRemoved(NetworkId)));
 120
 121   connect(p, SIGNAL(disconnected()), this, SLOT(disconnectFromCore()));
 122
 123   //connect(mainUi, SIGNAL(connectToCore(const QVariantMap &)), this, SLOT(connectToCore(const QVariantMap &)));
 124   connect(mainUi, SIGNAL(disconnectFromCore()), this, SLOT(disconnectFromCore()));
 125   connect(this, SIGNAL(connected()), mainUi, SLOT(connectedToCore()));
 126   connect(this, SIGNAL(disconnected()), mainUi, SLOT(disconnectedFromCore()));
 127
 128   layoutTimer = new QTimer(this);
 129   layoutTimer->setInterval(0);
 130   layoutTimer->setSingleShot(false);
 131   connect(layoutTimer, SIGNAL(timeout()), this, SLOT(layoutMsg()));
 132
 133 }
 134
 135 /*** public static methods ***/
 136
 137 AccountId Client::currentCoreAccount() {
 138   return _currentCoreAccount;
 139 }
 140
 141 void Client::setCurrentCoreAccount(AccountId id) {
 142   _currentCoreAccount = id;
 143 }
 144
 145 QList<BufferInfo> Client::allBufferInfos() {
 146   QList<BufferInfo> bufferids;
 147   foreach(Buffer *buffer, buffers()) {
 148     bufferids << buffer->bufferInfo();
 149   }
 150   return bufferids;
 151 }
 152
 153 QList<Buffer *> Client::buffers() {
 154   return instance()->_buffers.values();
 155 }
 156
 157
 158 Buffer *Client::statusBuffer(const NetworkId &networkId) const {
 159   if(_statusBuffers.contains(networkId))
 160     return _statusBuffers[networkId];
 161   else
 162     return 0;
 163 }
 164
 165 Buffer *Client::buffer(BufferId bufferId) {
 166   if(instance()->_buffers.contains(bufferId))
 167     return instance()->_buffers[bufferId];
 168   else
 169     return 0;
 170 }
 171
 172 Buffer *Client::buffer(BufferInfo bufferInfo) {
 173   Buffer *buff = buffer(bufferInfo.bufferId());
 174
 175   if(!buff) {
 176     Client *client = Client::instance();
 177     buff = new Buffer(bufferInfo, client);
 178     connect(buff, SIGNAL(destroyed()), client, SLOT(bufferDestroyed()));
 179     client->_buffers[bufferInfo.bufferId()] = buff;
 180     if(bufferInfo.type() == BufferInfo::StatusBuffer)
 181       client->_statusBuffers[bufferInfo.networkId()] = buff;
 182
 183     emit client->bufferUpdated(bufferInfo);
 184
 185     // I don't like this: but currently there isn't really a prettier way:
 186     if(isSynced()) {  // this slows down syncing a lot, so disable it during sync
 187       QModelIndex bufferIdx = networkModel()->bufferIndex(bufferInfo.bufferId());
 188       bufferModel()->setCurrentIndex(bufferModel()->mapFromSource(bufferIdx));
 189     }
 190   }
 191   Q_ASSERT(buff);
 192   return buff;
 193 }
 194
 195 bool Client::isConnected() {
 196   return instance()->_connectedToCore;
 197 }
 198
 199 bool Client::isSynced() {
 200   return instance()->_syncedToCore;
 201 }
 202
 203 /*** Network handling ***/
 204
 205 QList<NetworkId> Client::networkIds() {
 206   return instance()->_networks.keys();
 207 }
 208
 209 const Network * Client::network(NetworkId networkid) {
 210   if(instance()->_networks.contains(networkid)) return instance()->_networks[networkid];
 211   else return 0;
 212 }
 213
 214 void Client::createNetwork(const NetworkInfo &info) {
 215   emit instance()->requestCreateNetwork(info);
 216 }
 217
 218 void Client::updateNetwork(const NetworkInfo &info) {
 219   emit instance()->requestUpdateNetwork(info);
 220 }
 221
 222 void Client::removeNetwork(NetworkId id) {
 223   emit instance()->requestRemoveNetwork(id);
 224 }
 225
 226 void Client::addNetwork(Network *net) {
 227   net->setProxy(signalProxy());
 228   signalProxy()->synchronize(net);
 229   networkModel()->attachNetwork(net);
 230   connect(net, SIGNAL(destroyed()), instance(), SLOT(networkDestroyed()));
 231   instance()->_networks[net->networkId()] = net;
 232   emit instance()->networkCreated(net->networkId());
 233 }
 234
 235 void Client::coreNetworkCreated(NetworkId id) {
 236   if(_networks.contains(id)) {
 237     qWarning() << "Creation of already existing network requested!";
 238     return;
 239   }
 240   Network *net = new Network(id, this);
 241   addNetwork(net);
 242 }
 243
 244 void Client::coreNetworkRemoved(NetworkId id) {
 245   if(!_networks.contains(id)) return;
 246   Network *net = _networks.take(id);
 247   emit networkRemoved(net->networkId());
 248   net->deleteLater();
 249 }
 250
 251 /*** Identity handling ***/
 252
 253 QList<IdentityId> Client::identityIds() {
 254   return instance()->_identities.keys();
 255 }
 256
 257 const Identity * Client::identity(IdentityId id) {
 258   if(instance()->_identities.contains(id)) return instance()->_identities[id];
 259   else return 0;
 260 }
 261
 262 void Client::createIdentity(const Identity &id) {
 263   emit instance()->requestCreateIdentity(id);
 264 }
 265
 266 void Client::updateIdentity(const Identity &id) {
 267   emit instance()->requestUpdateIdentity(id);
 268 }
 269
 270 void Client::removeIdentity(IdentityId id) {
 271   emit instance()->requestRemoveIdentity(id);
 272 }
 273
 274 void Client::coreIdentityCreated(const Identity &other) {
 275   if(!_identities.contains(other.id())) {
 276     Identity *identity = new Identity(other, this);
 277     _identities[other.id()] = identity;
 278     identity->setInitialized();
 279     signalProxy()->synchronize(identity);
 280     emit identityCreated(other.id());
 281   } else {
 282     qWarning() << tr("Identity already exists in client!");
 283   }
 284 }
 285
 286 void Client::coreIdentityRemoved(IdentityId id) {
 287   if(_identities.contains(id)) {
 288     emit identityRemoved(id);
 289     Identity *i = _identities.take(id);
 290     i->deleteLater();
 291   }
 292 }
 293
 294 /***  ***/
 295 void Client::userInput(BufferInfo bufferInfo, QString message) {
 296   emit instance()->sendInput(bufferInfo, message);
 297 }
 298
 299 /*** core connection stuff ***/
 300
 301 void Client::setConnectedToCore(QIODevice *sock, AccountId id) {
 302   socket = sock;
 303   signalProxy()->addPeer(socket);
 304   _connectedToCore = true;
 305   setCurrentCoreAccount(id);
 306 }
 307
 308 void Client::setSyncedToCore() {
 309   // create buffersyncer
 310   Q_ASSERT(!_bufferSyncer);
 311   _bufferSyncer = new BufferSyncer(this);
 312   connect(bufferSyncer(), SIGNAL(lastSeenMsgSet(BufferId, MsgId)), this, SLOT(updateLastSeenMsg(BufferId, MsgId)));
 313   connect(bufferSyncer(), SIGNAL(bufferRemoved(BufferId)), this, SLOT(bufferRemoved(BufferId)));
 314   connect(bufferSyncer(), SIGNAL(bufferRenamed(BufferId, QString)), this, SLOT(bufferRenamed(BufferId, QString)));
 315   signalProxy()->synchronize(bufferSyncer());
 316
 317   // attach backlog manager
 318   signalProxy()->synchronize(backlogManager());
 319
 320   // create a new BufferViewManager
 321   _bufferViewManager = new BufferViewManager(signalProxy(), this);
 322
 323   _syncedToCore = true;
 324   emit connected();
 325   emit coreConnectionStateChanged(true);
 326 }
 327
 328 void Client::setSecuredConnection() {
 329   emit securedConnection();
 330 }
 331
 332 void Client::disconnectFromCore() {
 333   if(!isConnected())
 334     return;
 335   _connectedToCore = false;
 336
 337   if(socket) {
 338     socket->close();
 339     socket->deleteLater();
 340   }
 341   _syncedToCore = false;
 342   emit disconnected();
 343   emit coreConnectionStateChanged(false);
 344
 345   // Clear internal data. Hopefully nothing relies on it at this point.
 346   setCurrentCoreAccount(0);
 347
 348   if(_bufferSyncer) {
 349     _bufferSyncer->deleteLater();
 350     _bufferSyncer = 0;
 351   }
 352
 353   if(_bufferViewManager) {
 354     _bufferViewManager->deleteLater();
 355     _bufferViewManager = 0;
 356   }
 357
 358   _networkModel->clear();
 359
 360   QHash<BufferId, Buffer *>::iterator bufferIter =  _buffers.begin();
 361   while(bufferIter != _buffers.end()) {
 362     Buffer *buffer = bufferIter.value();
 363     disconnect(buffer, SIGNAL(destroyed()), this, 0);
 364     bufferIter = _buffers.erase(bufferIter);
 365     buffer->deleteLater();
 366   }
 367   Q_ASSERT(_buffers.isEmpty());
 368
 369   _statusBuffers.clear();
 370
 371   QHash<NetworkId, Network*>::iterator netIter = _networks.begin();
 372   while(netIter != _networks.end()) {
 373     Network *net = netIter.value();
 374     emit networkRemoved(net->networkId());
 375     disconnect(net, SIGNAL(destroyed()), this, 0);
 376     netIter = _networks.erase(netIter);
 377     net->deleteLater();
 378   }
 379   Q_ASSERT(_networks.isEmpty());
 380
 381   QHash<IdentityId, Identity*>::iterator idIter = _identities.begin();
 382   while(idIter != _identities.end()) {
 383     Identity *id = idIter.value();
 384     emit identityRemoved(id->id());
 385     idIter = _identities.erase(idIter);
 386     id->deleteLater();
 387   }
 388   Q_ASSERT(_identities.isEmpty());
 389
 390   layoutQueue.clear();
 391   layoutTimer->stop();
 392 }
 393
 394 void Client::setCoreConfiguration(const QVariantMap &settings) {
 395   SignalProxy::writeDataToDevice(socket, settings);
 396 }
 397
 398 /*** ***/
 399
 400 void Client::updateBufferInfo(BufferInfo id) {
 401   emit bufferUpdated(id);
 402 }
 403
 404 void Client::bufferDestroyed() {
 405   Buffer *buffer = static_cast<Buffer *>(sender());
 406   QHash<BufferId, Buffer *>::iterator iter = _buffers.begin();
 407   while(iter != _buffers.end()) {
 408     if(iter.value() == buffer) {
 409       iter = _buffers.erase(iter);
 410       break;
 411     }
 412     iter++;
 413   }
 414
 415   QHash<NetworkId, Buffer *>::iterator statusIter = _statusBuffers.begin();
 416   while(statusIter != _statusBuffers.end()) {
 417     if(statusIter.value() == buffer) {
 418       statusIter = _statusBuffers.erase(statusIter);
 419       break;
 420     }
 421     statusIter++;
 422   }
 423 }
 424
 425 void Client::networkDestroyed() {
 426   Network *net = static_cast<Network *>(sender());
 427   QHash<NetworkId, Network *>::iterator netIter = _networks.begin();
 428   while(netIter != _networks.end()) {
 429     if(*netIter == net) {
 430       netIter = _networks.erase(netIter);
 431       break;
 432     } else {
 433       netIter++;
 434     }
 435   }
 436 }
 437
 438 void Client::recvMessage(const Message &message) {
 439   Message msg = message;
 440   Buffer *b;
 441
 442   checkForHighlight(msg);
 443
 444   // FIXME clean up code! (dup)
 445
 446   // TODO: make redirected messages show up in the correct buffer!
 447
 448 #ifndef SPUTDEV
 449   if(msg.flags() & Message::Redirected) {
 450     BufferSettings bufferSettings;
 451     bool inStatus = bufferSettings.value("UserMessagesInStatusBuffer", QVariant(true)).toBool();
 452     bool inQuery = bufferSettings.value("UserMessagesInQueryBuffer", QVariant(false)).toBool();
 453     bool inCurrent = bufferSettings.value("UserMessagesInCurrentBuffer", QVariant(false)).toBool();
 454
 455     if(inStatus) {
 456       b = statusBuffer(msg.bufferInfo().networkId());
 457       if(b) {
 458         b->appendMsg(msg);
 459       } else if(!inQuery && !inCurrent) {       // make sure the message get's shown somewhere
 460         b = buffer(msg.bufferInfo());
 461         b->appendMsg(msg);
 462       }
 463     }
 464
 465     if(inQuery) {
 466       b = buffer(msg.bufferInfo().bufferId());
 467       if(b) {
 468         b->appendMsg(msg);
 469       } else if(!inStatus && !inCurrent) { // make sure the message get's shown somewhere
 470         b = statusBuffer(msg.bufferInfo().networkId());
 471       if(!b) b = buffer(msg.bufferInfo()); // seems like we have to create the buffer anyways...
 472       b->appendMsg(msg);
 473       }
 474     }
 475
 476     if(inCurrent) {
 477       BufferId currentId = bufferModel()->currentIndex().data(NetworkModel::BufferIdRole).value<BufferId>();
 478       b = buffer(currentId);
 479       if(b && currentId != msg.bufferInfo().bufferId() && !inQuery) {
 480         b->appendMsg(msg);
 481       } else if(!inStatus && !inQuery) {        // make sure the message get's shown somewhere
 482         b = statusBuffer(msg.bufferInfo().networkId());
 483         if(!b) b = buffer(msg.bufferInfo()); // seems like we have to create the buffer anyways...
 484         b->appendMsg(msg);
 485       }
 486     }
 487   } else {
 488     // the regular case: we can deliver where it was supposed to go
 489     b = buffer(msg.bufferInfo());
 490     b->appendMsg(msg);
 491   }
 492 #endif
 493
 494   //bufferModel()->updateBufferActivity(msg);
 495
 496   // monitor buffer goes away
 497 #ifndef SPUTDEV
 498   if(msg.type() == Message::Plain || msg.type() == Message::Notice || msg.type() == Message::Action) {
 499     const Network *net = network(msg.bufferInfo().networkId());
 500     QString networkName = net != 0
 501       ? net->networkName() + ":"
 502       : QString();
 503     QString sender = networkName + msg.bufferInfo().bufferName() + ":" + msg.sender();
 504     Message mmsg = Message(msg.timestamp(), msg.bufferInfo(), msg.type(), msg.text(), sender, msg.flags());
 505     monitorBuffer()->appendMsg(mmsg);
 506   }
 507 #endif
 508
 509   emit messageReceived(msg);
 510 }
 511
 512 void Client::recvStatusMsg(QString /*net*/, QString /*msg*/) {
 513   //recvMessage(net, Message::server("", QString("[STATUS] %1").arg(msg)));
 514 }
 515
 516 void Client::receiveBacklog(BufferId bufferId, const QVariantList &msgs) {
 517 #ifndef SPUTDEV
 518   Buffer *buffer_ = buffer(bufferId);
 519   if(!buffer_) {
 520     qWarning() << "Client::recvBacklogData(): received Backlog for unknown Buffer:" << bufferId;
 521     return;
 522   }
 523 #endif
 524
 525   if(msgs.isEmpty())
 526     return; // no work to be done...
 527
 528   QVariantList::const_iterator msgIter = msgs.constBegin();
 529   QVariantList::const_iterator msgIterEnd = msgs.constEnd();
 530   Message msg;
 531   while(msgIter != msgIterEnd) {
 532     msg = (*msgIter).value<Message>();
 533     checkForHighlight(msg);
 534     buffer_->prependMsg(msg);
 535     msgIter++;
 536   }
 537
 538   if(!layoutQueue.contains(buffer_))
 539     layoutQueue.append(buffer_);
 540
 541   if(!layoutTimer->isActive()) {
 542     layoutTimer->start();
 543   }
 544 }
 545
 546 void Client::layoutMsg() {
 547   if(layoutQueue.isEmpty()) {
 548     layoutTimer->stop();
 549     return;
 550   }
 551
 552   Buffer *buffer = layoutQueue.takeFirst();
 553   if(buffer->layoutMsg()) {
 554     layoutQueue.append(buffer);  // Buffer has more messages in its queue --> Round Robin
 555     return;
 556   }
 557
 558   if(layoutQueue.isEmpty())
 559     layoutTimer->stop();
 560 }
 561
 562 AbstractUiMsg *Client::layoutMsg(const Message &msg) {
 563   return instance()->mainUi->layoutMsg(msg);
 564 }
 565
 566 void Client::checkForHighlight(Message &msg) {
 567   NotificationSettings notificationSettings;
 568   const Network *net = network(msg.bufferInfo().networkId());
 569   if(net && !net->myNick().isEmpty()) {
 570     QStringList nickList;
 571     if(notificationSettings.highlightNick() == NotificationSettings::CurrentNick) {
 572       nickList << net->myNick();
 573     } else if(notificationSettings.highlightNick() == NotificationSettings::AllNicks) {
 574       nickList = identity(net->identity())->nicks();
 575     }
 576     foreach(QString nickname, nickList) {
 577       QRegExp nickRegExp("^(.*\\W)?" + QRegExp::escape(nickname) + "(\\W.*)?$");
 578       if((msg.type() & (Message::Plain | Message::Notice | Message::Action))
 579           && !(msg.flags() & Message::Self)
 580           && nickRegExp.exactMatch(msg.text())) {
 581         msg.setFlags(msg.flags() | Message::Highlight);
 582         return;
 583       }
 584     }
 585
 586     foreach(QVariant highlight, notificationSettings.highlightList()) {
 587       QVariantMap highlightRule = highlight.toMap();
 588       if(!highlightRule["enable"].toBool())
 589         continue;
 590       Qt::CaseSensitivity caseSensitivity = highlightRule["cs"].toBool() ? Qt::CaseSensitive : Qt::CaseInsensitive;
 591       QString name = highlightRule["name"].toString();
 592       QRegExp userRegExp;
 593       if(highlightRule["regex"].toBool()) {
 594         userRegExp = QRegExp(name, caseSensitivity);
 595       } else {
 596         userRegExp = QRegExp("^(.*\\W)?" + QRegExp::escape(name) + "(\\W.*)?$", caseSensitivity);
 597       }
 598       if((msg.type() & (Message::Plain | Message::Notice | Message::Action))
 599           && !(msg.flags() & Message::Self)
 600           && userRegExp.exactMatch(msg.text())) {
 601         msg.setFlags(msg.flags() | Message::Highlight);
 602         return;
 603       }
 604     }
 605   }
 606 }
 607
 608 void Client::updateLastSeenMsg(BufferId id, const MsgId &msgId) {
 609   Buffer *b = buffer(id);
 610   if(!b) {
 611     qWarning() << "Client::updateLastSeen(): Unknown buffer" << id;
 612     return;
 613   }
 614   b->setLastSeenMsg(msgId);
 615 }
 616
 617 void Client::setBufferLastSeenMsg(BufferId id, const MsgId &msgId) {
 618   if(!bufferSyncer())
 619     return;
 620   bufferSyncer()->requestSetLastSeenMsg(id, msgId);
 621 }
 622
 623 void Client::removeBuffer(BufferId id) {
 624   if(!bufferSyncer()) return;
 625   bufferSyncer()->requestRemoveBuffer(id);
 626 }
 627
 628 void Client::bufferRemoved(BufferId bufferId) {
 629   // first remove the buffer from has. this prohibits further lastSeenUpdates
 630   Buffer *buff = 0;
 631   if(_buffers.contains(bufferId)) {
 632     buff = _buffers.take(bufferId);
 633     disconnect(buff, 0, this, 0);
 634   }
 635
 636   // then we select a sane buffer (status buffer)
 637   /* we have to manually select a buffer because otherwise inconsitent changes
 638    * to the model might occur:
 639    * the result of a buffer removal triggers a change in the selection model.
 640    * the newly selected buffer might be a channel that hasn't been selected yet
 641    * and a new nickview would be created (which never heard of the "rowsAboutToBeRemoved").
 642    * this new view (and/or) its sort filter will then only receive a "rowsRemoved" signal.
 643    */
 644   QModelIndex current = bufferModel()->currentIndex();
 645   if(current.data(NetworkModel::BufferIdRole).value<BufferId>() == bufferId) {
 646     bufferModel()->setCurrentIndex(current.sibling(0,0));
 647   }
 648
 649   // and remove it from the model
 650   networkModel()->removeBuffer(bufferId);
 651
 652   if(buff)
 653     buff->deleteLater();
 654 }
 655
 656 void Client::bufferRenamed(BufferId bufferId, const QString &newName) {
 657   QModelIndex bufferIndex = networkModel()->bufferIndex(bufferId);
 658   if(bufferIndex.isValid()) {
 659     networkModel()->setData(bufferIndex, newName, Qt::DisplayRole);
 660   }
 661 }