1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel IRC Team *
3 * devel@quassel-irc.org *
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. *
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. *
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 ***************************************************************************/
21 #include "messagemodel.h"
25 #include "clientbacklogmanager.h"
28 #include "networkmodel.h"
30 class ProcessBufferEvent : public QEvent {
32 inline ProcessBufferEvent() : QEvent(QEvent::User) {}
35 MessageModel::MessageModel(QObject *parent)
36 : QAbstractItemModel(parent)
38 QDateTime now = QDateTime::currentDateTime();
39 now.setTimeSpec(Qt::UTC);
40 _nextDayChange.setTimeSpec(Qt::UTC);
41 _nextDayChange.setTime_t(((now.toTime_t() / 86400) + 1) * 86400);
42 _nextDayChange.setTimeSpec(Qt::LocalTime);
43 _dayChangeTimer.setInterval(QDateTime::currentDateTime().secsTo(_nextDayChange) * 1000);
44 _dayChangeTimer.start();
45 connect(&_dayChangeTimer, SIGNAL(timeout()), this, SLOT(changeOfDay()));
48 QVariant MessageModel::data(const QModelIndex &index, int role) const {
49 int row = index.row(); int column = index.column();
50 if(row < 0 || row >= _messageList.count() || column < 0)
53 if(role == ColumnTypeRole)
56 return _messageList[row]->data(index.column(), role);
59 bool MessageModel::setData(const QModelIndex &index, const QVariant &value, int role) {
60 int row = index.row();
61 if(row < 0 || row >= _messageList.count())
64 if(_messageList[row]->setData(index.column(), value, role)) {
65 emit dataChanged(index, index);
72 bool MessageModel::insertMessage(const Message &msg, bool fakeMsg) {
73 MsgId id = msg.msgId();
74 int idx = indexForId(id);
75 if(!fakeMsg && idx < _messageList.count()) { // check for duplicate
76 if(_messageList[idx]->msgId() == id)
80 insertMessageGroup(QList<Message>() << msg);
84 void MessageModel::insertMessages(const QList<Message> &msglist) {
88 int processedMsgs = insertMessagesGracefully(msglist);
89 int remainingMsgs = msglist.count() - processedMsgs;
90 if(remainingMsgs > 0) {
91 if(msglist.first().msgId() < msglist.last().msgId()) {
92 // in Order - we have just successfully processed "processedMsg" messages from the end of the list
93 _messageBuffer << msglist.mid(0, remainingMsgs);
95 _messageBuffer << msglist.mid(processedMsgs);
97 qSort(_messageBuffer);
98 QCoreApplication::postEvent(this, new ProcessBufferEvent());
102 void MessageModel::insertMessageGroup(const QList<Message> &msglist) {
103 Q_ASSERT(!msglist.isEmpty()); // the msglist can be assumed to be non empty
104 int start = indexForId(msglist.first().msgId());
105 int end = start + msglist.count() - 1;
106 MessageModelItem *dayChangeItem = 0;
107 bool relocatedMsg = false;
109 // check if the preceeding msg is a daychange message and if so if
110 // we have to drop or relocate it at the end of this chunk
111 int prevIdx = start - 1;
112 if(_messageList.at(prevIdx)->msgType() == Message::DayChange
113 && _messageList.at(prevIdx)->timeStamp() > msglist.at(0).timestamp()) {
114 beginRemoveRows(QModelIndex(), prevIdx, prevIdx);
115 MessageModelItem *oldItem = _messageList.takeAt(prevIdx);
116 if(msglist.last().timestamp() < oldItem->timeStamp()) {
117 // we have to reinsert it (with changed msgId -> thus we need to recreate it)
118 Message dayChangeMsg = Message::ChangeOfDay(oldItem->timeStamp());
119 dayChangeMsg.setMsgId(msglist.last().msgId());
120 dayChangeItem = createMessageModelItem(dayChangeMsg);
130 if(!dayChangeItem && start < _messageList.count()) {
131 // check if we need to insert a daychange message at the end of the this group
133 // if this assert triggers then indexForId() would have found a spot right before a DayChangeMsg
134 // this should never happen as daychange messages share the msgId with the preceeding message
135 Q_ASSERT(_messageList[start]->msgType() != Message::DayChange);
136 QDateTime nextTs = _messageList[start]->timeStamp();
137 QDateTime prevTs = msglist.last().timestamp();
138 nextTs.setTimeSpec(Qt::UTC);
139 prevTs.setTimeSpec(Qt::UTC);
140 uint nextDay = nextTs.toTime_t() / 86400;
141 uint prevDay = prevTs.toTime_t() / 86400;
142 if(nextDay != prevDay) {
143 nextTs.setTime_t(nextDay * 86400);
144 nextTs.setTimeSpec(Qt::LocalTime);
145 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
146 dayChangeMsg.setMsgId(msglist.last().msgId());
147 dayChangeItem = createMessageModelItem(dayChangeMsg);
154 Q_ASSERT(start == 0 || _messageList[start - 1]->msgId() < msglist.first().msgId());
155 Q_ASSERT(start == _messageList.count() || _messageList[start]->msgId() > msglist.last().msgId());
156 beginInsertRows(QModelIndex(), start, end);
158 foreach(Message msg, msglist) {
159 _messageList.insert(pos, createMessageModelItem(msg));
163 _messageList.insert(pos, dayChangeItem);
164 pos++; // needed for the following assert
167 Q_ASSERT(start == 0 || _messageList[start - 1]->msgId() < _messageList[start]->msgId());
168 Q_ASSERT(end + 1 == _messageList.count() || _messageList[end]->msgId() < _messageList[end + 1]->msgId());
169 Q_ASSERT(pos - 1 == end);
172 int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
173 /* short description:
174 * 1) first we check where the message with the highest msgId from msglist would be inserted
175 * 2) check that position for dupe
176 * 3) determine the messageId of the preceeding msg
177 * 4) insert as many msgs from msglist with with msgId larger then the just determined id
178 * those messages are automatically less then the msg of the position we just determined in 1)
180 bool inOrder = (msglist.first().msgId() < msglist.last().msgId());
181 // depending on the order we have to traverse from the front to the back or vice versa
183 QList<Message> grouplist;
186 int processedMsgs = 1; // we know the list isn't empty, so we at least process one message
188 bool fastForward = false;
189 QList<Message>::const_iterator iter;
191 iter = msglist.constEnd();
192 iter--; // this op is safe as we've allready passed an empty check
194 iter = msglist.constBegin();
197 idx = indexForId((*iter).msgId());
198 if(idx >= 0 && !_messageList.isEmpty())
199 dupeId = _messageList[idx]->msgId();
201 // we always compare to the previous entry...
202 // if there isn't, we can fastforward to the top
204 id = _messageList[idx - 1]->msgId();
208 if((*iter).msgId() != dupeId)
215 while(iter != msglist.constBegin()) {
218 if(!fastForward && (*iter).msgId() < id)
222 if(grouplist.isEmpty()) { // as long as we don't have a starting point, we have to update the dupeId
223 idx = indexForId((*iter).msgId());
224 if(idx >= 0 && !_messageList.isEmpty())
225 dupeId = _messageList[idx]->msgId();
227 if((*iter).msgId() != dupeId) {
228 if(!grouplist.isEmpty()) {
229 QDateTime nextTs = grouplist.value(0).timestamp();
230 QDateTime prevTs = (*iter).timestamp();
231 nextTs.setTimeSpec(Qt::UTC);
232 prevTs.setTimeSpec(Qt::UTC);
233 uint nextDay = nextTs.toTime_t() / 86400;
234 uint prevDay = prevTs.toTime_t() / 86400;
235 if(nextDay != prevDay) {
236 nextTs.setTime_t(nextDay * 86400);
237 nextTs.setTimeSpec(Qt::LocalTime);
238 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
239 dayChangeMsg.setMsgId((*iter).msgId());
240 grouplist.prepend(dayChangeMsg);
243 dupeId = (*iter).msgId();
244 grouplist.prepend(*iter);
248 while(iter != msglist.constEnd()) {
249 if(!fastForward && (*iter).msgId() < id)
253 if(grouplist.isEmpty()) { // as long as we don't have a starting point, we have to update the dupeId
254 idx = indexForId((*iter).msgId());
255 if(idx >= 0 && !_messageList.isEmpty())
256 dupeId = _messageList[idx]->msgId();
258 if((*iter).msgId() != dupeId) {
259 if(!grouplist.isEmpty()) {
260 QDateTime nextTs = grouplist.value(0).timestamp();
261 QDateTime prevTs = (*iter).timestamp();
262 nextTs.setTimeSpec(Qt::UTC);
263 prevTs.setTimeSpec(Qt::UTC);
264 uint nextDay = nextTs.toTime_t() / 86400;
265 uint prevDay = prevTs.toTime_t() / 86400;
266 if(nextDay != prevDay) {
267 nextTs.setTime_t(nextDay * 86400);
268 nextTs.setTimeSpec(Qt::LocalTime);
269 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
270 dayChangeMsg.setMsgId((*iter).msgId());
271 grouplist.prepend(dayChangeMsg);
274 dupeId = (*iter).msgId();
275 grouplist.prepend(*iter);
281 if(!grouplist.isEmpty())
282 insertMessageGroup(grouplist);
283 return processedMsgs;
286 void MessageModel::customEvent(QEvent *event) {
287 if(event->type() != QEvent::User)
292 if(_messageBuffer.isEmpty())
295 int processedMsgs = insertMessagesGracefully(_messageBuffer);
296 int remainingMsgs = _messageBuffer.count() - processedMsgs;
298 QList<Message>::iterator removeStart = _messageBuffer.begin() + remainingMsgs;
299 QList<Message>::iterator removeEnd = _messageBuffer.end();
300 _messageBuffer.erase(removeStart, removeEnd);
302 if(!_messageBuffer.isEmpty())
303 QCoreApplication::postEvent(this, new ProcessBufferEvent());
306 void MessageModel::clear() {
307 beginRemoveRows(QModelIndex(), 0, rowCount() - 1);
308 qDeleteAll(_messageList);
309 _messageList.clear();
311 _messagesWaiting.clear();
314 // returns index of msg with given Id or of the next message after that (i.e., the index where we'd insert this msg)
315 int MessageModel::indexForId(MsgId id) {
316 if(_messageList.isEmpty() || id <= _messageList.value(0)->msgId())
318 if(id > _messageList.last()->msgId())
319 return _messageList.count();
322 int start = 0; int end = _messageList.count()-1;
326 int pivot = (end + start) / 2;
327 if(id <= _messageList.value(pivot)->msgId()) end = pivot;
332 void MessageModel::changeOfDay() {
333 _dayChangeTimer.setInterval(86400000);
334 if(!_messageList.isEmpty()) {
335 int idx = _messageList.count();
336 while(idx > 0 && _messageList[idx - 1]->timeStamp() > _nextDayChange) {
339 beginInsertRows(QModelIndex(), idx, idx);
340 Message dayChangeMsg = Message::ChangeOfDay(_nextDayChange);
341 dayChangeMsg.setMsgId(_messageList[idx - 1]->msgId());
342 _messageList.insert(idx, createMessageModelItem(dayChangeMsg));
345 _nextDayChange = _nextDayChange.addSecs(86400);
348 void MessageModel::requestBacklog(BufferId bufferId) {
349 if(_messagesWaiting.contains(bufferId))
352 static const int REQUEST_COUNT = 500;
354 for(int i = 0; i < _messageList.count(); i++) {
355 if(_messageList.at(i)->bufferId() == bufferId) {
356 _messagesWaiting[bufferId] = REQUEST_COUNT;
357 Client::backlogManager()->emitMessagesRequested(tr("Requesting %1 messages from backlog for buffer %2:%3")
359 .arg(Client::networkModel()->networkName(bufferId))
360 .arg(Client::networkModel()->bufferName(bufferId)));
361 Client::backlogManager()->requestBacklog(bufferId, REQUEST_COUNT, _messageList.at(i)->msgId().toInt());
367 void MessageModel::messagesReceived(BufferId bufferId, int count) {
368 if(!_messagesWaiting.contains(bufferId))
371 _messagesWaiting[bufferId] -= count;
372 if(_messagesWaiting[bufferId] <= 0)
373 _messagesWaiting.remove(bufferId);
376 // ========================================
378 // ========================================
379 MessageModelItem::MessageModelItem(const Message &msg) :
380 _timestamp(msg.timestamp()),
382 _bufferId(msg.bufferInfo().bufferId()),
388 QVariant MessageModelItem::data(int column, int role) const {
389 if(column < MessageModel::TimestampColumn || column > MessageModel::ContentsColumn)
393 case MessageModel::MsgIdRole: return QVariant::fromValue<MsgId>(_msgId);
394 case MessageModel::BufferIdRole: return QVariant::fromValue<BufferId>(_bufferId);
395 case MessageModel::TypeRole: return _type;
396 case MessageModel::FlagsRole: return (int)_flags;
397 case MessageModel::TimestampRole: return _timestamp;
398 default: return QVariant();
404 bool MessageModelItem::lessThan(const MessageModelItem *m1, const MessageModelItem *m2){
405 return (*m1) < (*m2);
408 bool MessageModelItem::operator<(const MessageModelItem &other) const {
409 return _msgId < other._msgId;
412 bool MessageModelItem::operator==(const MessageModelItem &other) const {
413 return _msgId == other._msgId;
416 bool MessageModelItem::operator>(const MessageModelItem &other) const {
417 return _msgId > other._msgId;
420 QDebug operator<<(QDebug dbg, const MessageModelItem &msgItem) {
421 dbg.nospace() << qPrintable(QString("MessageModelItem(MsgId:")) << msgItem.msgId()
422 << qPrintable(QString(",")) << msgItem.timeStamp()
423 << qPrintable(QString(", Type:")) << msgItem.msgType()
424 << qPrintable(QString(", Flags:")) << msgItem.msgFlags() << qPrintable(QString(")"))
425 << msgItem.data(1, Qt::DisplayRole).toString() << ":" << msgItem.data(2, Qt::DisplayRole).toString();