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/***************************************************************************
* Copyright (C) 2005-2014 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) version 3. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef BACKLOGREQUESTER_H
#define BACKLOGREQUESTER_H
#include <QList>
#include "client.h"
#include "message.h"
#include "networkmodel.h"
#include "types.h"
class ClientBacklogManager;
class BacklogRequester
{
public:
enum RequesterType {
InvalidRequester = 0,
PerBufferFixed,
PerBufferUnread,
GlobalUnread
};
BacklogRequester(bool buffering, RequesterType requesterType, ClientBacklogManager *backlogManger);
virtual inline ~BacklogRequester() {}
inline bool isBuffering() { return _isBuffering; }
inline RequesterType type() { return _requesterType; }
inline const QList<Message> &bufferedMessages() { return _bufferedMessages; }
inline int buffersWaiting() const { return _buffersWaiting.count(); }
inline int totalBuffers() const { return _totalBuffers; }
bool buffer(BufferId bufferId, const MessageList &messages); //! returns false if it was the last missing backlogpart
virtual void requestBacklog(const BufferIdList &bufferIds) = 0;
virtual inline void requestInitialBacklog() { requestBacklog(allBufferIds()); }
virtual void flushBuffer();
protected:
BufferIdList allBufferIds() const;
inline void setWaitingBuffers(const QList<BufferId> &buffers) { setWaitingBuffers(buffers.toSet()); }
void setWaitingBuffers(const QSet<BufferId> &buffers);
void addWaitingBuffer(BufferId buffer);
ClientBacklogManager *backlogManager;
private:
bool _isBuffering;
RequesterType _requesterType;
MessageList _bufferedMessages;
int _totalBuffers;
QSet<BufferId> _buffersWaiting;
};
// ========================================
// FIXED BACKLOG REQUESTER
// ========================================
class FixedBacklogRequester : public BacklogRequester
{
public:
FixedBacklogRequester(ClientBacklogManager *backlogManager);
virtual void requestBacklog(const BufferIdList &bufferIds);
private:
int _backlogCount;
};
// ========================================
// GLOBAL UNREAD BACKLOG REQUESTER
// ========================================
class GlobalUnreadBacklogRequester : public BacklogRequester
{
public:
GlobalUnreadBacklogRequester(ClientBacklogManager *backlogManager);
virtual void requestInitialBacklog();
virtual void requestBacklog(const BufferIdList &) {}
private:
int _limit;
int _additional;
};
// ========================================
// PER BUFFER UNREAD BACKLOG REQUESTER
// ========================================
class PerBufferUnreadBacklogRequester : public BacklogRequester
{
public:
PerBufferUnreadBacklogRequester(ClientBacklogManager *backlogManager);
virtual void requestBacklog(const BufferIdList &bufferIds);
private:
int _limit;
int _additional;
};
#endif //BACKLOGREQUESTER_H
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