+
+void BacklogRequester::addWaitingBuffer(BufferId buffer)
+{
+ _buffersWaiting << buffer;
+ _totalBuffers++;
+}
+
+
+bool BacklogRequester::buffer(BufferId bufferId, const MessageList &messages)
+{
+ _bufferedMessages << messages;
+ _buffersWaiting.remove(bufferId);
+ return !_buffersWaiting.isEmpty();
+}
+
+
+BufferIdList BacklogRequester::allBufferIds() const
+{
+ QSet<BufferId> bufferIds = Client::bufferViewOverlay()->bufferIds();
+ bufferIds += Client::bufferViewOverlay()->tempRemovedBufferIds();
+ return bufferIds.toList();
+}
+
+
+void BacklogRequester::flushBuffer()
+{
+ if (!_buffersWaiting.isEmpty()) {
+ qWarning() << Q_FUNC_INFO << "was called before all backlog was received:"
+ << _buffersWaiting.count() << "buffers are waiting.";
+ }
+ _bufferedMessages.clear();
+ _totalBuffers = 0;
+ _buffersWaiting.clear();
+}
+
+
+// ========================================
+// FIXED BACKLOG REQUESTER
+// ========================================
+FixedBacklogRequester::FixedBacklogRequester(ClientBacklogManager *backlogManager)
+ : BacklogRequester(true, BacklogRequester::PerBufferFixed, backlogManager)
+{
+ BacklogSettings backlogSettings;
+ _backlogCount = backlogSettings.fixedBacklogAmount();
+}
+
+
+void FixedBacklogRequester::requestBacklog(const BufferIdList &bufferIds)
+{
+ setWaitingBuffers(bufferIds);
+ backlogManager->emitMessagesRequested(QObject::tr("Requesting a total of up to %1 backlog messages for %2 buffers").arg(_backlogCount * bufferIds.count()).arg(bufferIds.count()));
+ foreach(BufferId bufferId, bufferIds) {
+ backlogManager->requestBacklog(bufferId, -1, -1, _backlogCount);
+ }
+}
+
+
+// ========================================
+// GLOBAL UNREAD BACKLOG REQUESTER
+// ========================================
+GlobalUnreadBacklogRequester::GlobalUnreadBacklogRequester(ClientBacklogManager *backlogManager)
+ : BacklogRequester(false, BacklogRequester::GlobalUnread, backlogManager)
+{
+ BacklogSettings backlogSettings;
+ _limit = backlogSettings.globalUnreadBacklogLimit();
+ _additional = backlogSettings.globalUnreadBacklogAdditional();
+}
+
+
+void GlobalUnreadBacklogRequester::requestInitialBacklog()
+{
+ MsgId oldestUnreadMessage;
+ foreach(BufferId bufferId, allBufferIds()) {
+ MsgId msgId = Client::networkModel()->lastSeenMsgId(bufferId);
+ if (!oldestUnreadMessage.isValid() || oldestUnreadMessage > msgId)
+ oldestUnreadMessage = msgId;
+ }
+ backlogManager->emitMessagesRequested(QObject::tr("Requesting up to %1 of all unread backlog messages (plus additional %2)").arg(_limit).arg(_additional));
+ backlogManager->requestBacklogAll(oldestUnreadMessage, -1, _limit, _additional);
+}
+
+
+// ========================================
+// PER BUFFER UNREAD BACKLOG REQUESTER
+// ========================================
+PerBufferUnreadBacklogRequester::PerBufferUnreadBacklogRequester(ClientBacklogManager *backlogManager)
+ : BacklogRequester(true, BacklogRequester::PerBufferUnread, backlogManager)
+{
+ BacklogSettings backlogSettings;
+ _limit = backlogSettings.perBufferUnreadBacklogLimit();
+ _additional = backlogSettings.perBufferUnreadBacklogAdditional();
+}
+
+
+void PerBufferUnreadBacklogRequester::requestBacklog(const BufferIdList &bufferIds)
+{
+ setWaitingBuffers(bufferIds);
+ backlogManager->emitMessagesRequested(QObject::tr("Requesting a total of up to %1 unread backlog messages for %2 buffers").arg((_limit + _additional) * bufferIds.count()).arg(bufferIds.count()));
+ foreach(BufferId bufferId, bufferIds) {
+ backlogManager->requestBacklog(bufferId, Client::networkModel()->lastSeenMsgId(bufferId), -1, _limit, _additional);
+ }