Fixing dubious crash at core connect (courtesy of EgS finding and Sput testing the...
[quassel.git] / src / client / networkmodel.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 "networkmodel.h"
22
23 #include <QAbstractItemView>
24
25 #include "bufferinfo.h"
26 #include "client.h"
27 #include "signalproxy.h"
28 #include "network.h"
29 #include "ircchannel.h"
30 #include "ircuser.h"
31
32 #include "util.h" // get rid of this (needed for isChannelName)
33
34 /*****************************************
35 *  Fancy Buffer Items
36 *****************************************/
37 BufferItem::BufferItem(BufferInfo bufferInfo, AbstractTreeItem *parent)
38   : PropertyMapItem(QStringList() << "bufferName" << "topic" << "nickCount", parent),
39     _bufferInfo(bufferInfo),
40     _activity(NoActivity)
41 {
42   // determine BufferType
43   if(bufferInfo.buffer().isEmpty())
44     _type = StatusType;
45   else if(isChannelName(bufferInfo.buffer()))
46     _type = ChannelType;
47   else
48     _type = QueryType;
49
50   Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled;
51   if(bufferType() == QueryType)
52     flags |= Qt::ItemIsDropEnabled;
53   setFlags(flags);
54 }
55
56
57 const BufferInfo &BufferItem::bufferInfo() const {
58   return _bufferInfo;
59 }
60
61 quint64 BufferItem::id() const {
62   return bufferInfo().uid();
63 }
64
65 bool BufferItem::isStatusBuffer() const {
66    return bufferType() == StatusType;
67 }
68
69 BufferItem::Type BufferItem::bufferType() const {
70   return _type;
71 }
72
73 bool BufferItem::isActive() const {
74   if(bufferType() == ChannelType)
75     return _ircChannel;
76   else
77     return qobject_cast<NetworkItem *>(parent())->isActive();
78 }
79
80 BufferItem::ActivityLevel BufferItem::activity() const {
81   return _activity;
82 }
83
84 void BufferItem::setActivity(const ActivityLevel &level) {
85   _activity = level;
86 }
87
88 void BufferItem::addActivity(const ActivityLevel &level) {
89   _activity |= level;
90 }
91
92 QVariant BufferItem::data(int column, int role) const {
93   switch(role) {
94   case NetworkModel::ItemTypeRole:
95     return NetworkModel::BufferItemType;
96   case NetworkModel::BufferIdRole:
97     return bufferInfo().uid();
98   case NetworkModel::NetworkIdRole:
99     return bufferInfo().networkId();
100   case NetworkModel::BufferTypeRole:
101     return int(bufferType());
102   case NetworkModel::ItemActiveRole:
103     return isActive();
104   default:
105     return PropertyMapItem::data(column, role);
106   }
107 }
108
109 void BufferItem::attachIrcChannel(IrcChannel *ircChannel) {
110   if(!ircChannel)
111     return;
112   
113   _ircChannel = ircChannel;
114
115   connect(ircChannel, SIGNAL(topicSet(QString)),
116           this, SLOT(setTopic(QString)));
117   connect(ircChannel, SIGNAL(ircUserJoined(IrcUser *)),
118           this, SLOT(join(IrcUser *)));
119   connect(ircChannel, SIGNAL(ircUserParted(IrcUser *)),
120           this, SLOT(part(IrcUser *)));
121   connect(ircChannel, SIGNAL(destroyed()),
122           this, SLOT(ircChannelDestroyed()));
123   
124   emit dataChanged();
125 }
126
127 void BufferItem::ircChannelDestroyed() {
128   emit dataChanged();
129   for(int i = 0; i < childCount(); i++) {
130     emit childDestroyed(i);
131     removeChild(i);
132   }
133 }
134
135 QString BufferItem::bufferName() const {
136   if(bufferType() == StatusType)
137     return tr("Status Buffer");
138   else
139     return bufferInfo().buffer();
140 }
141
142 QString BufferItem::topic() const {
143   if(_ircChannel)
144     return _ircChannel->topic();
145   else
146     return QString();
147 }
148
149 int BufferItem::nickCount() const {
150   if(_ircChannel)
151     return _ircChannel->ircUsers().count();
152   else
153     return 0;
154 }
155
156 void BufferItem::setTopic(const QString &topic) {
157   Q_UNUSED(topic);
158   emit dataChanged(1);
159 }
160
161 void BufferItem::join(IrcUser *ircUser) {
162   emit newChild(new IrcUserItem(ircUser, this));
163   emit dataChanged(2);
164 }
165
166 void BufferItem::part(IrcUser *ircUser) {
167   Q_UNUSED(ircUser);
168   emit dataChanged(2);
169 }
170
171 /*****************************************
172 *  Network Items
173 *****************************************/
174 NetworkItem::NetworkItem(const uint &netid, const QString &network, AbstractTreeItem *parent)
175   : PropertyMapItem(QList<QString>() << "networkName" << "currentServer" << "nickCount", parent),
176     _networkId(netid),
177     _networkName(network)
178 {
179   setFlags(Qt::ItemIsEnabled);
180 }
181
182 QVariant NetworkItem::data(int column, int role) const {
183   switch(role) {
184   case NetworkModel::NetworkIdRole:
185     return _networkId;
186   case NetworkModel::ItemTypeRole:
187     return NetworkModel::NetworkItemType;
188   case NetworkModel::ItemActiveRole:
189     return isActive();
190   default:
191     return PropertyMapItem::data(column, role);
192   }
193 }
194
195 quint64 NetworkItem::id() const {
196   return _networkId;
197 }
198
199 bool NetworkItem::isActive() const {
200   return _network;
201 }
202
203 QString NetworkItem::networkName() const {
204   if(_network)
205     return _network->networkName();
206   else
207     return _networkName;
208 }
209
210 QString NetworkItem::currentServer() const {
211   if(_network)
212     return _network->currentServer();
213   else
214     return QString();
215 }
216
217 int NetworkItem::nickCount() const {
218   BufferItem *bufferItem;
219   int count = 0;
220   for(int i = 0; i < childCount(); i++) {
221     bufferItem = qobject_cast<BufferItem *>(child(i));
222     if(!bufferItem)
223       continue;
224     count += bufferItem->nickCount();
225   }
226   return count;
227 }
228
229 void NetworkItem::attachNetwork(Network *network) {
230   if(!network)
231     return;
232   
233   _network = network;
234
235   connect(network, SIGNAL(networkNameSet(QString)),
236           this, SLOT(setNetworkName(QString)));
237   connect(network, SIGNAL(currentServerSet(QString)),
238           this, SLOT(setCurrentServer(QString)));
239   connect(network, SIGNAL(ircChannelAdded(QString)),
240           this, SLOT(attachIrcChannel(QString)));
241   // FIXME: connect this and that...
242
243   emit dataChanged();
244 }
245
246 void NetworkItem::attachIrcChannel(const QString &channelName) {
247   IrcChannel *ircChannel = _network->ircChannel(channelName);
248   if(!ircChannel) {
249     qWarning() << "NetworkItem::attachIrcChannel(): unkown Channel" << channelName;
250     return;
251   }
252   
253   BufferItem *bufferItem;
254   for(int i = 0; i < childCount(); i++) {
255     bufferItem = qobject_cast<BufferItem *>(child(i));
256     if(bufferItem->bufferName() == ircChannel->name()) {
257       bufferItem->attachIrcChannel(ircChannel);
258       break;
259     }
260   }
261 }
262
263 void NetworkItem::setNetworkName(const QString &networkName) {
264   Q_UNUSED(networkName);
265   emit dataChanged(0);
266 }
267
268 void NetworkItem::setCurrentServer(const QString &serverName) {
269   Q_UNUSED(serverName);
270   emit dataChanged(1);
271 }
272
273 /*****************************************
274 *  Irc User Items
275 *****************************************/
276 IrcUserItem::IrcUserItem(IrcUser *ircUser, AbstractTreeItem *parent)
277   : PropertyMapItem(QStringList() << "nickName", parent),
278     _ircUser(ircUser)
279 {
280   connect(ircUser, SIGNAL(destroyed()),
281           this, SLOT(ircUserDestroyed()));
282   
283   connect(ircUser, SIGNAL(nickSet(QString)),
284           this, SLOT(setNick(QString)));
285 }
286
287 QString IrcUserItem::nickName() {
288   return _ircUser->nick();
289 }
290
291 void IrcUserItem::setNick(QString newNick) {
292   Q_UNUSED(newNick);
293   emit dataChanged(0);
294 }
295 void IrcUserItem::ircUserDestroyed() {
296   deleteLater();
297 }
298
299
300 /*****************************************
301  * NetworkModel
302  *****************************************/
303 NetworkModel::NetworkModel(QObject *parent)
304   : TreeModel(NetworkModel::defaultHeader(), parent)
305 {
306 }
307
308 QList<QVariant >NetworkModel::defaultHeader() {
309   QList<QVariant> data;
310   data << tr("Buffer") << tr("Topic") << tr("Nick Count");
311   return data;
312 }
313
314 bool NetworkModel::isBufferIndex(const QModelIndex &index) const {
315   return index.data(NetworkModel::ItemTypeRole) == NetworkModel::BufferItemType;
316 }
317
318 Buffer *NetworkModel::getBufferByIndex(const QModelIndex &index) const {
319   BufferItem *item = static_cast<BufferItem *>(index.internalPointer());
320   return Client::instance()->buffer(item->id());
321 }
322
323
324 // experimental stuff :)
325 QModelIndex NetworkModel::networkIndex(uint networkId) {
326   return indexById(networkId);
327 }
328
329 NetworkItem *NetworkModel::network(uint networkId) {
330   return qobject_cast<NetworkItem *>(rootItem->childById(networkId));
331 }
332
333 NetworkItem *NetworkModel::newNetwork(uint networkId, const QString &networkName) {
334   NetworkItem *networkItem = network(networkId);
335
336   if(networkItem == 0) {
337     networkItem = new NetworkItem(networkId, networkName, rootItem);
338     appendChild(rootItem, networkItem);
339   }
340
341   Q_ASSERT(networkItem);
342   return networkItem;
343 }
344
345 QModelIndex NetworkModel::bufferIndex(BufferId bufferId) {
346   AbstractTreeItem *netItem, *bufferItem;
347   for(int i = 0; i < rootItem->childCount(); i++) {
348     netItem = rootItem->child(i);
349     if((bufferItem = netItem->childById(bufferId))) {
350       return indexById(bufferItem->id(), networkIndex(netItem->id()));
351     }
352   }
353   return QModelIndex();
354 }
355
356 BufferItem *NetworkModel::buffer(BufferInfo bufferInfo) {
357   QModelIndex bufferIdx = bufferIndex(bufferInfo.uid());
358   if(bufferIdx.isValid())
359     return static_cast<BufferItem *>(bufferIdx.internalPointer());
360   else
361     return 0;
362 }
363
364 BufferItem *NetworkModel::newBuffer(BufferInfo bufferInfo) {
365   BufferItem *bufferItem = buffer(bufferInfo);
366   if(bufferItem == 0) {
367     NetworkItem *networkItem = newNetwork(bufferInfo.networkId(), bufferInfo.network());
368     bufferItem = new BufferItem(bufferInfo, networkItem);
369     appendChild(networkItem, bufferItem);
370   }
371
372   Q_ASSERT(bufferItem);
373   return bufferItem;
374 }
375
376 QStringList NetworkModel::mimeTypes() const {
377   // mimetypes we accept for drops
378   QStringList types;
379   // comma separated list of colon separated pairs of networkid and bufferid
380   // example: 0:1,0:2,1:4
381   types << "application/Quassel/BufferItemList";
382   return types;
383 }
384
385 bool NetworkModel::mimeContainsBufferList(const QMimeData *mimeData) {
386   return mimeData->hasFormat("application/Quassel/BufferItemList");
387 }
388
389 QList< QPair<uint, uint> > NetworkModel::mimeDataToBufferList(const QMimeData *mimeData) {
390   QList< QPair<uint, uint> > bufferList;
391
392   if(!mimeContainsBufferList(mimeData))
393     return bufferList;
394
395   QStringList rawBufferList = QString::fromAscii(mimeData->data("application/Quassel/BufferItemList")).split(",");
396   uint networkId, bufferUid;
397   foreach(QString rawBuffer, rawBufferList) {
398     if(!rawBuffer.contains(":"))
399       continue;
400     networkId = rawBuffer.section(":", 0, 0).toUInt();
401     bufferUid = rawBuffer.section(":", 1, 1).toUInt();
402     bufferList.append(qMakePair(networkId, bufferUid));
403   }
404   return bufferList;
405 }
406
407
408 QMimeData *NetworkModel::mimeData(const QModelIndexList &indexes) const {
409   QMimeData *mimeData = new QMimeData();
410
411   QStringList bufferlist;
412   QString netid, uid, bufferid;
413   foreach(QModelIndex index, indexes) {
414     netid = QString::number(index.data(NetworkIdRole).toUInt());
415     uid = QString::number(index.data(BufferIdRole).toUInt());
416     bufferid = QString("%1:%2").arg(netid).arg(uid);
417     if(!bufferlist.contains(bufferid))
418       bufferlist << bufferid;
419   }
420
421   mimeData->setData("application/Quassel/BufferItemList", bufferlist.join(",").toAscii());
422
423   return mimeData;
424 }
425
426 bool NetworkModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) {
427   Q_UNUSED(action)
428   Q_UNUSED(row)
429   Q_UNUSED(column)
430
431   if(!mimeContainsBufferList(data))
432     return false;
433
434   // target must be a query
435   BufferItem::Type targetType = (BufferItem::Type)parent.data(NetworkModel::BufferTypeRole).toInt();
436   if(targetType != BufferItem::QueryType)
437     return false;
438
439   QList< QPair<uint, uint> > bufferList = mimeDataToBufferList(data);
440
441   // exactly one buffer has to be dropped
442   if(bufferList.count() != 1)
443     return false;
444
445   uint netId = bufferList.first().first;
446   uint bufferId = bufferList.first().second;
447
448   // no self merges (would kill us)
449   if(bufferId == parent.data(BufferIdRole).toUInt())
450     return false; 
451   
452   Q_ASSERT(rootItem->childById(netId));
453   Q_ASSERT(rootItem->childById(netId)->childById(bufferId));
454
455   // source must be a query too
456   BufferItem::Type sourceType = (BufferItem::Type)rootItem->childById(netId)->childById(bufferId)->data(0, BufferTypeRole).toInt();
457   if(sourceType != BufferItem::QueryType)
458     return false;
459     
460   // TODO: warn user about buffermerge!
461   qDebug() << "merging" << bufferId << parent.data(BufferIdRole).toInt();
462   removeRow(parent.row(), parent.parent());
463   
464   return true;
465 }
466
467 void NetworkModel::attachNetwork(Network *net) {
468   NetworkItem *networkItem = network(net->networkId());
469   if(!networkItem) {
470     qWarning() << "NetworkModel::attachNetwork(): network is unknown!";
471     return;
472   }
473   networkItem->attachNetwork(net);
474 }
475
476 void NetworkModel::bufferUpdated(BufferInfo bufferInfo) {
477   BufferItem *bufferItem = newBuffer(bufferInfo);
478   QModelIndex itemindex = indexByItem(bufferItem);
479   emit dataChanged(itemindex, itemindex);
480 }
481
482 void NetworkModel::bufferActivity(BufferItem::ActivityLevel level, BufferInfo bufferInfo) {
483 //   BufferItem *bufferItem = buffer(buf->bufferInfo());
484 //   if(!bufferItem) {
485 //     qWarning() << "NetworkModel::bufferActivity(): received Activity Info for uknown Buffer";
486 //     return;
487 //   }
488 //   bufferItem->setActivity(level);
489 //   bufferUpdated(buf);
490 }
491