Bring back activity levels. I think Buffer has to go soon, since this is all that...
[quassel.git] / src / client / client.cpp
index 73316ca..e39435e 100644 (file)
@@ -1,11 +1,11 @@
 /***************************************************************************
- *   Copyright (C) 2005-07 by The Quassel Team                             *
+ *   Copyright (C) 2005-08 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
+ *   (at your option) version 3.                                           *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 
 #include "client.h"
 
-#include "networkinfo.h"
-#include "ircuser.h"
+#include "bufferinfo.h"
+#include "buffermodel.h"
+#include "buffersettings.h"
+#include "buffersyncer.h"
+#include "bufferviewmanager.h"
+#include "clientbacklogmanager.h"
+#include "clientirclisthelper.h"
+#include "global.h"
+#include "identity.h"
 #include "ircchannel.h"
-
+#include "ircuser.h"
 #include "message.h"
-
-#include "bufferinfo.h"
-#include "buffertreemodel.h"
+#include "messagemodel.h"
+#include "network.h"
+#include "networkmodel.h"
 #include "quasselui.h"
 #include "signalproxy.h"
-#include "synchronizer.h"
 #include "util.h"
 
 QPointer<Client> Client::instanceptr = 0;
+AccountId Client::_currentCoreAccount = 0;
+
+/*** Initialization/destruction ***/
 
-// ==============================
-//  public Static Methods
-// ==============================
 Client *Client::instance() {
   if(!instanceptr)
     instanceptr = new Client();
@@ -45,7 +51,8 @@ Client *Client::instance() {
 }
 
 void Client::destroy() {
-  delete instanceptr;
+  //delete instanceptr;
+  instanceptr->deleteLater();
 }
 
 void Client::init(AbstractUi *ui) {
@@ -53,134 +60,68 @@ void Client::init(AbstractUi *ui) {
   instance()->init();
 }
 
-QList<NetworkInfo *> Client::networkInfos() {
-  return instance()->_networkInfo.values();
-}
-
-NetworkInfo *Client::networkInfo(uint networkid) {
-  if(instance()->_networkInfo.contains(networkid))
-    return instance()->_networkInfo[networkid];
-  else
-    return 0;
-}
-
-QList<BufferInfo> Client::allBufferInfos() {
-  QList<BufferInfo> bufferids;
-  foreach(Buffer *buffer, buffers()) {
-    bufferids << buffer->bufferInfo();
-  }
-  return bufferids;
-}
-
-QList<Buffer *> Client::buffers() {
-  return instance()->_buffers.values();
-}
-
-Buffer *Client::buffer(uint bufferUid) {
-  if(instance()->_buffers.contains(bufferUid))
-    return instance()->_buffers[bufferUid];
-  else
-    return 0;
-}
-
-Buffer *Client::buffer(BufferInfo id) {
-  Buffer *buff = buffer(id.uid());
-
-  if(!buff) {
-    Client *client = Client::instance();
-    buff = new Buffer(id, client);
-
-    connect(buff, SIGNAL(userInput(BufferInfo, QString)),
-           client, SLOT(userInput(BufferInfo, QString)));
-    connect(buff, SIGNAL(bufferUpdated(Buffer *)),
-           client, SIGNAL(bufferUpdated(Buffer *)));
-    connect(buff, SIGNAL(bufferDestroyed(Buffer *)),
-           client, SIGNAL(bufferDestroyed(Buffer *)));
-    connect(buff, SIGNAL(bufferDestroyed(Buffer *)),
-           client, SLOT(removeBuffer(Buffer *)));
-    
-    client->_buffers[id.uid()] = buff;
-    emit client->bufferUpdated(buff);
-  }
-  Q_ASSERT(buff);
-  return buff;
-}
-
-// FIXME switch to netids!
-// WHEN IS THIS NEEDED ANYHOW!?
-BufferInfo Client::bufferInfo(QString net, QString buf) {
-  foreach(Buffer *buffer_, buffers()) {
-    BufferInfo bufferInfo = buffer_->bufferInfo();
-    if(bufferInfo.network() == net && bufferInfo.buffer() == buf)
-      return bufferInfo;
-  }
-  Q_ASSERT(false);  // should never happen!
-  return BufferInfo();
-}
-
-BufferInfo Client::statusBufferInfo(QString net) {
-  return bufferInfo(net, "");
-}
-
-BufferTreeModel *Client::bufferModel() {
-  return instance()->_bufferModel;
-}
-
-SignalProxy *Client::signalProxy() {
-  return instance()->_signalProxy;
-}
-
-// ==============================
-//  Constructor / Decon
-// ==============================
 Client::Client(QObject *parent)
   : QObject(parent),
     socket(0),
-    _signalProxy(new SignalProxy(SignalProxy::Client, 0, this)),
+    _signalProxy(new SignalProxy(SignalProxy::Client, this)),
     mainUi(0),
+    _networkModel(0),
     _bufferModel(0),
-    connectedToCore(false)
+    _bufferSyncer(0),
+    _backlogManager(new ClientBacklogManager(this)),
+    _bufferViewManager(0),
+    _ircListHelper(new ClientIrcListHelper(this)),
+    _messageModel(0),
+    _connectedToCore(false),
+    _syncedToCore(false)
 {
+  _monitorBuffer = new Buffer(BufferInfo(), this);
+  _signalProxy->synchronize(_ircListHelper);
+
+  connect(_backlogManager, SIGNAL(backlog(BufferId, const QVariantList &)),
+         this, SLOT(receiveBacklog(BufferId, const QVariantList &)));
 }
 
 Client::~Client() {
+  disconnectFromCore();
 }
 
 void Client::init() {
-  blockSize = 0;
+  _currentCoreAccount = 0;
+  _networkModel = new NetworkModel(this);
 
-  _bufferModel = new BufferTreeModel(this);
+  connect(this, SIGNAL(bufferUpdated(BufferInfo)),
+          _networkModel, SLOT(bufferUpdated(BufferInfo)));
+  connect(this, SIGNAL(networkRemoved(NetworkId)),
+          _networkModel, SLOT(networkRemoved(NetworkId)));
 
-  connect(this, SIGNAL(bufferSelected(Buffer *)),
-         _bufferModel, SLOT(selectBuffer(Buffer *)));
-  connect(this, SIGNAL(bufferUpdated(Buffer *)),
-         _bufferModel, SLOT(bufferUpdated(Buffer *)));
-  connect(this, SIGNAL(bufferActivity(Buffer::ActivityLevel, Buffer *)),
-         _bufferModel, SLOT(bufferActivity(Buffer::ActivityLevel, Buffer *)));
+  _bufferModel = new BufferModel(_networkModel);
+  _messageModel = mainUi->createMessageModel(this);
 
   SignalProxy *p = signalProxy();
-  p->attachSignal(this, SIGNAL(sendSessionData(const QString &, const QVariant &)),
-                 SIGNAL(clientSessionDataChanged(const QString &, const QVariant &)));
-  p->attachSlot(SIGNAL(coreSessionDataChanged(const QString &, const QVariant &)),
-               this, SLOT(recvSessionData(const QString &, const QVariant &)));
-  p->attachSlot(SIGNAL(coreState(const QVariant &)),
-               this, SLOT(recvCoreState(const QVariant &)));
-  p->attachSlot(SIGNAL(networkConnected(uint)),
-               this, SLOT(networkConnected(uint)));
-  p->attachSlot(SIGNAL(networkDisconnected(uint)),
-               this, SLOT(networkDisconnected(uint)));
-  p->attachSlot(SIGNAL(displayMsg(const Message &)),
-               this, SLOT(recvMessage(const Message &)));
-  p->attachSlot(SIGNAL(displayStatusMsg(QString, QString)),
-               this, SLOT(recvStatusMsg(QString, QString)));
-
-
-  p->attachSlot(SIGNAL(backlogData(BufferInfo, const QVariantList &, bool)), this, SLOT(recvBacklogData(BufferInfo, const QVariantList &, bool)));
+
+  p->attachSlot(SIGNAL(displayMsg(const Message &)), this, SLOT(recvMessage(const Message &)));
+  p->attachSlot(SIGNAL(displayStatusMsg(QString, QString)), this, SLOT(recvStatusMsg(QString, QString)));
+
   p->attachSlot(SIGNAL(bufferInfoUpdated(BufferInfo)), this, SLOT(updateBufferInfo(BufferInfo)));
   p->attachSignal(this, SIGNAL(sendInput(BufferInfo, QString)));
   p->attachSignal(this, SIGNAL(requestNetworkStates()));
 
-  connect(mainUi, SIGNAL(connectToCore(const QVariantMap &)), this, SLOT(connectToCore(const QVariantMap &)));
+  p->attachSignal(this, SIGNAL(requestCreateIdentity(const Identity &)), SIGNAL(createIdentity(const Identity &)));
+  p->attachSignal(this, SIGNAL(requestUpdateIdentity(const Identity &)), SIGNAL(updateIdentity(const Identity &)));
+  p->attachSignal(this, SIGNAL(requestRemoveIdentity(IdentityId)), SIGNAL(removeIdentity(IdentityId)));
+  p->attachSlot(SIGNAL(identityCreated(const Identity &)), this, SLOT(coreIdentityCreated(const Identity &)));
+  p->attachSlot(SIGNAL(identityRemoved(IdentityId)), this, SLOT(coreIdentityRemoved(IdentityId)));
+
+  p->attachSignal(this, SIGNAL(requestCreateNetwork(const NetworkInfo &)), SIGNAL(createNetwork(const NetworkInfo &)));
+  p->attachSignal(this, SIGNAL(requestUpdateNetwork(const NetworkInfo &)), SIGNAL(updateNetwork(const NetworkInfo &)));
+  p->attachSignal(this, SIGNAL(requestRemoveNetwork(NetworkId)), SIGNAL(removeNetwork(NetworkId)));
+  p->attachSlot(SIGNAL(networkCreated(NetworkId)), this, SLOT(coreNetworkCreated(NetworkId)));
+  p->attachSlot(SIGNAL(networkRemoved(NetworkId)), this, SLOT(coreNetworkRemoved(NetworkId)));
+
+  connect(p, SIGNAL(disconnected()), this, SLOT(disconnectFromCore()));
+
+  //connect(mainUi, SIGNAL(connectToCore(const QVariantMap &)), this, SLOT(connectToCore(const QVariantMap &)));
   connect(mainUi, SIGNAL(disconnectFromCore()), this, SLOT(disconnectFromCore()));
   connect(this, SIGNAL(connected()), mainUi, SLOT(connectedToCore()));
   connect(this, SIGNAL(disconnected()), mainUi, SLOT(disconnectedFromCore()));
@@ -192,299 +133,345 @@ void Client::init() {
 
 }
 
-bool Client::isConnected() {
-  return instance()->connectedToCore;
+/*** public static methods ***/
+
+AccountId Client::currentCoreAccount() {
+  return _currentCoreAccount;
 }
 
-void Client::connectToCore(const QVariantMap &conn) {
-  // TODO implement SSL
-  coreConnectionInfo = conn;
-  if(isConnected()) {
-    emit coreConnectionError(tr("Already connected to Core!"));
-    return;
-  }
-  
-  if(socket != 0)
-    socket->deleteLater();
-  
-  if(conn["Host"].toString().isEmpty()) {
-    clientMode = LocalCore;
-    socket = new QBuffer(this);
-    connect(socket, SIGNAL(readyRead()), this, SLOT(coreHasData()));
-    socket->open(QIODevice::ReadWrite);
-    //QVariant state = connectToLocalCore(coreConnectionInfo["User"].toString(), coreConnectionInfo["Password"].toString());
-    //syncToCore(state);
-    coreSocketConnected();
-  } else {
-    clientMode = RemoteCore;
-    emit coreConnectionMsg(tr("Connecting..."));
-    Q_ASSERT(!socket);
-    QTcpSocket *sock = new QTcpSocket(this);
-    socket = sock;
-    connect(sock, SIGNAL(readyRead()), this, SLOT(coreHasData()));
-    connect(sock, SIGNAL(connected()), this, SLOT(coreSocketConnected()));
-    connect(sock, SIGNAL(disconnected()), this, SLOT(coreSocketDisconnected()));
-    connect(signalProxy(), SIGNAL(peerDisconnected()), this, SLOT(coreSocketDisconnected()));
-    //connect(sock, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(coreSocketStateChanged(QAbstractSocket::SocketState)));
-    connect(sock, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(coreSocketError(QAbstractSocket::SocketError)));
-    sock->connectToHost(conn["Host"].toString(), conn["Port"].toUInt());
+void Client::setCurrentCoreAccount(AccountId id) {
+  _currentCoreAccount = id;
+}
+
+QList<BufferInfo> Client::allBufferInfos() {
+  QList<BufferInfo> bufferids;
+  foreach(Buffer *buffer, buffers()) {
+    bufferids << buffer->bufferInfo();
   }
+  return bufferids;
 }
 
-void Client::disconnectFromCore() {
-  socket->close();
-  if(clientMode == LocalCore)
-    coreSocketDisconnected();
+QList<Buffer *> Client::buffers() {
+  return instance()->_buffers.values();
 }
 
-void Client::coreSocketConnected() {
-  connect(this, SIGNAL(recvPartialItem(uint, uint)), this, SIGNAL(coreConnectionProgress(uint, uint)));
-  emit coreConnectionMsg(tr("Synchronizing to core..."));
-  QVariantMap clientInit;
-  clientInit["GuiProtocol"] = GUI_PROTOCOL;
-  clientInit["User"] = coreConnectionInfo["User"].toString();
-  clientInit["Password"] = coreConnectionInfo["Password"].toString();
-  writeDataToDevice(socket, clientInit);
+
+Buffer *Client::statusBuffer(const NetworkId &networkId) const {
+  if(_statusBuffers.contains(networkId))
+    return _statusBuffers[networkId];
+  else
+    return 0;
 }
 
-void Client::coreSocketDisconnected() {
-  instance()->connectedToCore = false;
-  emit disconnected();
-  socket->deleteLater();
-  blockSize = 0;
+Buffer *Client::buffer(BufferId bufferId) {
+  if(instance()->_buffers.contains(bufferId))
+    return instance()->_buffers[bufferId];
+  else
+    return 0;
+}
 
-  /* Clear internal data. Hopefully nothing relies on it at this point. */
-  _bufferModel->clear();
+Buffer *Client::buffer(BufferInfo bufferInfo) {
+  Buffer *buff = buffer(bufferInfo.bufferId());
 
-  foreach(Buffer *buffer, _buffers.values()) {
-    delete buffer;
+  if(!buff) {
+    Client *client = Client::instance();
+    buff = new Buffer(bufferInfo, client);
+    connect(buff, SIGNAL(destroyed()), client, SLOT(bufferDestroyed()));
+    client->_buffers[bufferInfo.bufferId()] = buff;
+    if(bufferInfo.type() == BufferInfo::StatusBuffer)
+      client->_statusBuffers[bufferInfo.networkId()] = buff;
+
+    emit client->bufferUpdated(bufferInfo);
+
+    // I don't like this: but currently there isn't really a prettier way:
+    if(isSynced()) {  // this slows down syncing a lot, so disable it during sync
+      QModelIndex bufferIdx = networkModel()->bufferIndex(bufferInfo.bufferId());
+      bufferModel()->setCurrentIndex(bufferModel()->mapFromSource(bufferIdx));
+    }
   }
-  Q_ASSERT(_buffers.empty());
+  Q_ASSERT(buff);
+  return buff;
+}
 
-  foreach(NetworkInfo *networkinfo, _networkInfo.values()) {
-    delete networkinfo;
-  }
-  Q_ASSERT(_networkInfo.empty());
+bool Client::isConnected() {
+  return instance()->_connectedToCore;
+}
 
-  coreConnectionInfo.clear();
-  sessionData.clear();
-  layoutQueue.clear();
-  layoutTimer->stop();
+bool Client::isSynced() {
+  return instance()->_syncedToCore;
 }
 
-void Client::coreSocketStateChanged(QAbstractSocket::SocketState state) {
-  if(state == QAbstractSocket::UnconnectedState) coreSocketDisconnected();
+/*** Network handling ***/
+
+QList<NetworkId> Client::networkIds() {
+  return instance()->_networks.keys();
 }
 
-void Client::recvCoreState(const QVariant &state) {
-  disconnect(this, SIGNAL(recvPartialItem(uint, uint)), this, SIGNAL(coreConnectionProgress(uint, uint)));
-  disconnect(socket, 0, this, 0);  // rest of communication happens through SignalProxy
-  signalProxy()->addPeer(socket);
-  syncToCore(state);
+const Network * Client::network(NetworkId networkid) {
+  if(instance()->_networks.contains(networkid)) return instance()->_networks[networkid];
+  else return 0;
 }
 
-// TODO: auth errors
-void Client::syncToCore(const QVariant &coreState) {
-  if(!coreState.toMap().contains("SessionState")) {
-    emit coreConnectionError(tr("Invalid data received from core!"));
-    disconnectFromCore();
-    return;
-  }
+void Client::createNetwork(const NetworkInfo &info) {
+  emit instance()->requestCreateNetwork(info);
+}
 
-  QVariantMap sessionState = coreState.toMap()["SessionState"].toMap();
+void Client::updateNetwork(const NetworkInfo &info) {
+  emit instance()->requestUpdateNetwork(info);
+}
 
-  // store sessionData
-  QVariantMap sessData = sessionState["SessionData"].toMap();
-  foreach(QString key, sessData.keys())
-    recvSessionData(key, sessData[key]);
+void Client::removeNetwork(NetworkId id) {
+  emit instance()->requestRemoveNetwork(id);
+}
 
-  // store Buffer details
-  QVariantList coreBuffers = sessionState["Buffers"].toList();
-  /* make lookups by id faster */
-  foreach(QVariant vid, coreBuffers) {
-    buffer(vid.value<BufferInfo>()); // create all buffers, so we see them in the network views
-  }
+void Client::addNetwork(Network *net) {
+  net->setProxy(signalProxy());
+  signalProxy()->synchronize(net);
+  networkModel()->attachNetwork(net);
+  connect(net, SIGNAL(destroyed()), instance(), SLOT(networkDestroyed()));
+  instance()->_networks[net->networkId()] = net;
+  emit instance()->networkCreated(net->networkId());
+}
 
-  // create networkInfo objects
-  QVariantList networkids = sessionState["Networks"].toList();
-  foreach(QVariant networkid, networkids) {
-    networkConnected(networkid.toUInt());
+void Client::coreNetworkCreated(NetworkId id) {
+  if(_networks.contains(id)) {
+    qWarning() << "Creation of already existing network requested!";
+    return;
   }
-  
-  instance()->connectedToCore = true;
-  updateCoreConnectionProgress();
+  Network *net = new Network(id, this);
+  addNetwork(net);
 }
 
-void Client::updateCoreConnectionProgress() {
-  // we'll do this in three steps:
-  // 1.) networks
-  // 2.) channels
-  // 3.) ircusers
+void Client::coreNetworkRemoved(NetworkId id) {
+  if(!_networks.contains(id))
+    return;
+  Network *net = _networks.take(id);
+  emit networkRemoved(net->networkId());
+  net->deleteLater();
+}
 
-  int numNets = networkInfos().count();
-  int numNetsWaiting = 0;
+/*** Identity handling ***/
 
-  int numIrcUsers = 0;
-  int numIrcUsersWaiting = 0;
+QList<IdentityId> Client::identityIds() {
+  return instance()->_identities.keys();
+}
 
-  int numChannels = 0;
-  int numChannelsWaiting = 0;
+const Identity * Client::identity(IdentityId id) {
+  if(instance()->_identities.contains(id)) return instance()->_identities[id];
+  else return 0;
+}
 
-  foreach(NetworkInfo *net, networkInfos()) {
-    if(! net->initialized())
-      numNetsWaiting++;
+void Client::createIdentity(const Identity &id) {
+  emit instance()->requestCreateIdentity(id);
+}
 
-    numIrcUsers += net->ircUsers().count();
-    foreach(IrcUser *user, net->ircUsers()) {
-      if(! user->initialized())
-       numIrcUsersWaiting++;
-    }
+void Client::updateIdentity(const Identity &id) {
+  emit instance()->requestUpdateIdentity(id);
+}
 
-    numChannels += net->ircChannels().count();
-    foreach(IrcChannel *channel, net->ircChannels()) {
-      if(! channel->initialized())
-       numChannelsWaiting++;
-    }
+void Client::removeIdentity(IdentityId id) {
+  emit instance()->requestRemoveIdentity(id);
+}
 
+void Client::coreIdentityCreated(const Identity &other) {
+  if(!_identities.contains(other.id())) {
+    Identity *identity = new Identity(other, this);
+    _identities[other.id()] = identity;
+    identity->setInitialized();
+    signalProxy()->synchronize(identity);
+    emit identityCreated(other.id());
+  } else {
+    qWarning() << tr("Identity already exists in client!");
   }
+}
 
-  if(numNetsWaiting > 0) {
-    emit coreConnectionMsg(tr("Requesting network states..."));
-    emit coreConnectionProgress(numNets - numNetsWaiting, numNets);
-    return;
+void Client::coreIdentityRemoved(IdentityId id) {
+  if(_identities.contains(id)) {
+    emit identityRemoved(id);
+    Identity *i = _identities.take(id);
+    i->deleteLater();
   }
+}
 
-  if(numIrcUsersWaiting > 0) {
-    emit coreConnectionMsg(tr("Requesting User states..."));
-    emit coreConnectionProgress(numIrcUsers - numIrcUsersWaiting, numIrcUsers);
-    return;
-  }
+/***  ***/
+void Client::userInput(BufferInfo bufferInfo, QString message) {
+  emit instance()->sendInput(bufferInfo, message);
+}
 
-  if(numChannelsWaiting > 0) {
-    emit coreConnectionMsg(tr("Requesting Channel states..."));
-    emit coreConnectionProgress(numChannels - numChannelsWaiting, numChannels);
-    return;
-  }
+/*** core connection stuff ***/
 
-  emit coreConnectionProgress(1,1);
-  emit connected();
+void Client::setConnectedToCore(QIODevice *sock, AccountId id) {
+  socket = sock;
+  signalProxy()->addPeer(socket);
+  _connectedToCore = true;
+  setCurrentCoreAccount(id);
 }
 
-void Client::recvSessionData(const QString &key, const QVariant &data) {
-  sessionData[key] = data;
-  emit sessionDataChanged(key, data);
-  emit sessionDataChanged(key);
-}
+void Client::setSyncedToCore() {
+  // create buffersyncer
+  Q_ASSERT(!_bufferSyncer);
+  _bufferSyncer = new BufferSyncer(this);
+  connect(bufferSyncer(), SIGNAL(lastSeenMsgSet(BufferId, MsgId)), this, SLOT(updateLastSeenMsg(BufferId, MsgId)));
+  connect(bufferSyncer(), SIGNAL(bufferRemoved(BufferId)), this, SLOT(bufferRemoved(BufferId)));
+  connect(bufferSyncer(), SIGNAL(bufferRenamed(BufferId, QString)), this, SLOT(bufferRenamed(BufferId, QString)));
+  signalProxy()->synchronize(bufferSyncer());
 
-void Client::storeSessionData(const QString &key, const QVariant &data) {
-  // Not sure if this is a good idea, but we'll try it anyway:
-  // Calling this function only sends a signal to core. Data is stored upon reception of the update signal,
-  // rather than immediately.
-  emit instance()->sendSessionData(key, data);
-}
+  // attach backlog manager
+  signalProxy()->synchronize(backlogManager());
 
-QVariant Client::retrieveSessionData(const QString &key, const QVariant &def) {
-  if(instance()->sessionData.contains(key)) return instance()->sessionData[key];
-  else return def;
-}
+  // create a new BufferViewManager
+  _bufferViewManager = new BufferViewManager(signalProxy(), this);
 
-QStringList Client::sessionDataKeys() {
-  return instance()->sessionData.keys();
+  _syncedToCore = true;
+  emit connected();
+  emit coreConnectionStateChanged(true);
 }
 
-void Client::coreSocketError(QAbstractSocket::SocketError) {
-  emit coreConnectionError(socket->errorString());
-  socket->deleteLater();
+void Client::setSecuredConnection() {
+  emit securedConnection();
 }
 
-void Client::coreHasData() {
-  QVariant item;
-  if(readDataFromDevice(socket, blockSize, item)) {
-    emit recvPartialItem(1,1);
-    recvCoreState(item);
-    blockSize = 0;
+void Client::disconnectFromCore() {
+  if(!isConnected())
     return;
+  _connectedToCore = false;
+
+  if(socket) {
+    socket->close();
+    socket->deleteLater();
   }
-  if(blockSize > 0) {
-    emit recvPartialItem(socket->bytesAvailable(), blockSize);
+  _syncedToCore = false;
+  emit disconnected();
+  emit coreConnectionStateChanged(false);
+
+  // Clear internal data. Hopefully nothing relies on it at this point.
+  setCurrentCoreAccount(0);
+
+  if(_bufferSyncer) {
+    _bufferSyncer->deleteLater();
+    _bufferSyncer = 0;
   }
-}
 
-void Client::networkConnected(uint netid) {
-  // TODO: create statusBuffer / switch to networkids
-  //BufferInfo id = statusBufferInfo(net);
-  //Buffer *b = buffer(id);
-  //b->setActive(true);
+  if(_bufferViewManager) {
+    _bufferViewManager->deleteLater();
+    _bufferViewManager = 0;
+  }
 
-  NetworkInfo *netinfo = new NetworkInfo(netid, signalProxy(), this);
-  connect(netinfo, SIGNAL(initDone()), this, SLOT(updateCoreConnectionProgress()));
-  connect(netinfo, SIGNAL(ircUserInitDone()), this, SLOT(updateCoreConnectionProgress()));
-  connect(netinfo, SIGNAL(ircChannelInitDone()), this, SLOT(updateCoreConnectionProgress()));
-  _networkInfo[netid] = netinfo;
-}
+  _networkModel->clear();
 
-void Client::networkDisconnected(uint networkid) {
-  foreach(Buffer *buffer, buffers()) {
-    if(buffer->bufferInfo().networkId() != networkid)
-      continue;
+  QHash<BufferId, Buffer *>::iterator bufferIter =  _buffers.begin();
+  while(bufferIter != _buffers.end()) {
+    Buffer *buffer = bufferIter.value();
+    disconnect(buffer, SIGNAL(destroyed()), this, 0);
+    bufferIter = _buffers.erase(bufferIter);
+    buffer->deleteLater();
+  }
+  Q_ASSERT(_buffers.isEmpty());
 
-    //buffer->displayMsg(Message(bufferid, Message::Server, tr("Server disconnected."))); FIXME
-    buffer->setActive(false);
+  _statusBuffers.clear();
+
+  QHash<NetworkId, Network*>::iterator netIter = _networks.begin();
+  while(netIter != _networks.end()) {
+    Network *net = netIter.value();
+    emit networkRemoved(net->networkId());
+    disconnect(net, SIGNAL(destroyed()), this, 0);
+    netIter = _networks.erase(netIter);
+    net->deleteLater();
   }
-  
-  Q_ASSERT(networkInfo(networkid));
-  if(!networkInfo(networkid)->initialized()) {
-    qDebug() << "Network" << networkid << "disconnected while not yet initialized!";
-    updateCoreConnectionProgress();
+  Q_ASSERT(_networks.isEmpty());
+
+  QHash<IdentityId, Identity*>::iterator idIter = _identities.begin();
+  while(idIter != _identities.end()) {
+    Identity *id = idIter.value();
+    emit identityRemoved(id->id());
+    idIter = _identities.erase(idIter);
+    id->deleteLater();
   }
+  Q_ASSERT(_identities.isEmpty());
+
+  layoutQueue.clear();
+  layoutTimer->stop();
 }
 
-void Client::updateBufferInfo(BufferInfo id) {
-  buffer(id)->updateBufferInfo(id);
+void Client::setCoreConfiguration(const QVariantMap &settings) {
+  SignalProxy::writeDataToDevice(socket, settings);
 }
 
+/*** ***/
 
-void Client::removeBuffer(Buffer *b) {
-  _buffers.remove(b->bufferInfo().uid());
+void Client::updateBufferInfo(BufferInfo id) {
+  emit bufferUpdated(id);
 }
 
-void Client::recvMessage(const Message &msg) {
-  Buffer *b = buffer(msg.buffer());
+void Client::bufferDestroyed() {
+  Buffer *buffer = static_cast<Buffer *>(sender());
+  QHash<BufferId, Buffer *>::iterator iter = _buffers.begin();
+  while(iter != _buffers.end()) {
+    if(iter.value() == buffer) {
+      iter = _buffers.erase(iter);
+      break;
+    }
+    iter++;
+  }
 
-  Buffer::ActivityLevel level = Buffer::OtherActivity;
-  if(msg.type() == Message::Plain || msg.type() == Message::Notice){
-    level |= Buffer::NewMessage;
+  QHash<NetworkId, Buffer *>::iterator statusIter = _statusBuffers.begin();
+  while(statusIter != _statusBuffers.end()) {
+    if(statusIter.value() == buffer) {
+      statusIter = _statusBuffers.erase(statusIter);
+      break;
+    }
+    statusIter++;
   }
-  if(msg.flags() & Message::Highlight){
-    level |= Buffer::Highlight;
+}
+
+void Client::networkDestroyed() {
+  Network *net = static_cast<Network *>(sender());
+  QHash<NetworkId, Network *>::iterator netIter = _networks.begin();
+  while(netIter != _networks.end()) {
+    if(*netIter == net) {
+      netIter = _networks.erase(netIter);
+      break;
+    } else {
+      netIter++;
+    }
   }
-  emit bufferActivity(level, b);
+}
 
-  b->appendMsg(msg);
+void Client::recvMessage(const Message &msg_) {
+  Message msg = msg_;
+  checkForHighlight(msg);
+  _messageModel->insertMessage(msg);
+  buffer(msg.bufferInfo())->updateActivityLevel(msg);
 }
 
 void Client::recvStatusMsg(QString /*net*/, QString /*msg*/) {
   //recvMessage(net, Message::server("", QString("[STATUS] %1").arg(msg)));
 }
 
-void Client::recvBacklogData(BufferInfo id, QVariantList msgs, bool /*done*/) {
-  Buffer *b = buffer(id);
+void Client::receiveBacklog(BufferId bufferId, const QVariantList &msgs) {
+  //QTime start = QTime::currentTime();
   foreach(QVariant v, msgs) {
     Message msg = v.value<Message>();
-    b->prependMsg(msg);
-    if(!layoutQueue.contains(b)) layoutQueue.append(b);
+    checkForHighlight(msg);
+    _messageModel->insertMessage(msg);
+    buffer(msg.bufferInfo())->updateActivityLevel(msg);
   }
-  if(layoutQueue.count() && !layoutTimer->isActive()) layoutTimer->start();
+  //qDebug() << "processed" << msgs.count() << "backlog lines in" << start.msecsTo(QTime::currentTime());
 }
 
 void Client::layoutMsg() {
-  if(layoutQueue.count()) {
-    Buffer *b = layoutQueue.takeFirst();  // TODO make this the current buffer
-    if(b->layoutMsg())
-      layoutQueue.append(b);  // Buffer has more messages in its queue --> Round Robin
+  if(layoutQueue.isEmpty()) {
+    layoutTimer->stop();
+    return;
+  }
+
+  Buffer *buffer = layoutQueue.takeFirst();
+  if(buffer->layoutMsg()) {
+    layoutQueue.append(buffer);  // Buffer has more messages in its queue --> Round Robin
+    return;
   }
-  
-  if(!layoutQueue.count())
+
+  if(layoutQueue.isEmpty())
     layoutTimer->stop();
 }
 
@@ -492,7 +479,102 @@ AbstractUiMsg *Client::layoutMsg(const Message &msg) {
   return instance()->mainUi->layoutMsg(msg);
 }
 
-void Client::userInput(BufferInfo id, QString msg) {
-  emit sendInput(id, msg);
+// TODO optimize checkForHighlight
+void Client::checkForHighlight(Message &msg) {
+  if(!((msg.type() & (Message::Plain | Message::Notice | Message::Action)) && !(msg.flags() & Message::Self)))
+    return;
+
+  NotificationSettings notificationSettings;
+  const Network *net = network(msg.bufferInfo().networkId());
+  if(net && !net->myNick().isEmpty()) {
+    QStringList nickList;
+    if(notificationSettings.highlightNick() == NotificationSettings::CurrentNick) {
+      nickList << net->myNick();
+    } else if(notificationSettings.highlightNick() == NotificationSettings::AllNicks) {
+      const Identity *myIdentity = identity(net->identity());
+      if(myIdentity)
+       nickList = myIdentity->nicks();
+    }
+    foreach(QString nickname, nickList) {
+      QRegExp nickRegExp("^(.*\\W)?" + QRegExp::escape(nickname) + "(\\W.*)?$");
+      if(nickRegExp.exactMatch(msg.contents())) {
+        msg.setFlags(msg.flags() | Message::Highlight);
+        return;
+      }
+    }
+
+    foreach(QVariant highlight, notificationSettings.highlightList()) {
+      QVariantMap highlightRule = highlight.toMap();
+      if(!highlightRule["enable"].toBool())
+        continue;
+      Qt::CaseSensitivity caseSensitivity = highlightRule["cs"].toBool() ? Qt::CaseSensitive : Qt::CaseInsensitive;
+      QString name = highlightRule["name"].toString();
+      QRegExp userRegExp;
+      if(highlightRule["regex"].toBool()) {
+        userRegExp = QRegExp(name, caseSensitivity);
+      } else {
+        userRegExp = QRegExp("^(.*\\W)?" + QRegExp::escape(name) + "(\\W.*)?$", caseSensitivity);
+      }
+      if(userRegExp.exactMatch(msg.contents())) {
+        msg.setFlags(msg.flags() | Message::Highlight);
+        return;
+      }
+    }
+  }
+}
+
+void Client::updateLastSeenMsg(BufferId id, const MsgId &msgId) {
+  Buffer *b = buffer(id);
+  if(!b) {
+    qWarning() << "Client::updateLastSeen(): Unknown buffer" << id;
+    return;
+  }
+  b->setLastSeenMsg(msgId);
+}
+
+void Client::setBufferLastSeenMsg(BufferId id, const MsgId &msgId) {
+  if(!bufferSyncer())
+    return;
+  bufferSyncer()->requestSetLastSeenMsg(id, msgId);
+}
+
+void Client::removeBuffer(BufferId id) {
+  if(!bufferSyncer()) return;
+  bufferSyncer()->requestRemoveBuffer(id);
 }
 
+void Client::bufferRemoved(BufferId bufferId) {
+  // first remove the buffer from hash. this prohibits further lastSeenUpdates
+  Buffer *buff = 0;
+  if(_buffers.contains(bufferId)) {
+    buff = _buffers.take(bufferId);
+    layoutQueue.removeAll(buff);
+    disconnect(buff, 0, this, 0);
+  }
+
+  // then we select a sane buffer (status buffer)
+  /* we have to manually select a buffer because otherwise inconsitent changes
+   * to the model might occur:
+   * the result of a buffer removal triggers a change in the selection model.
+   * the newly selected buffer might be a channel that hasn't been selected yet
+   * and a new nickview would be created (which never heard of the "rowsAboutToBeRemoved").
+   * this new view (and/or) its sort filter will then only receive a "rowsRemoved" signal.
+   */
+  QModelIndex current = bufferModel()->currentIndex();
+  if(current.data(NetworkModel::BufferIdRole).value<BufferId>() == bufferId) {
+    bufferModel()->setCurrentIndex(current.sibling(0,0));
+  }
+
+  // and remove it from the model
+  networkModel()->removeBuffer(bufferId);
+
+  if(buff)
+    buff->deleteLater();
+}
+
+void Client::bufferRenamed(BufferId bufferId, const QString &newName) {
+  QModelIndex bufferIndex = networkModel()->bufferIndex(bufferId);
+  if(bufferIndex.isValid()) {
+    networkModel()->setData(bufferIndex, newName, Qt::DisplayRole);
+  }
+}