nextcloud-desktop/src/gui/quotainfo.h
2017-05-17 12:26:27 +02:00

91 lines
2.8 KiB
C++

/*
* Copyright (C) by Daniel Molkentin <danimo@owncloud.com>
*
* 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.
*
* 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.
*/
#ifndef QUOTAINFO_H
#define QUOTAINFO_H
#include <QObject>
#include <QPointer>
#include <QVariant>
#include <QTimer>
#include <QDateTime>
namespace OCC {
class AccountState;
class PropfindJob;
/**
* @brief handles getting the quota to display in the UI
*
* It is typically owned by the AccountSetting page.
*
* The quota is requested if these 3 conditions are met:
* - This object is active via setActive() (typically if the settings page is visible.)
* - The account is connected.
* - Every 30 seconds (defaultIntervalT) or 5 seconds in case of failure (failIntervalT)
*
* We only request the quota when the UI is visible otherwise this might slow down the server with
* too many requests. But we still need to do it every 30 seconds otherwise user complains that the
* quota is not updated fast enough when changed on the server.
*
* If the quota job is not finished within 30 seconds, it is cancelled and another one is started
*
* @ingroup gui
*/
class QuotaInfo : public QObject
{
Q_OBJECT
public:
explicit QuotaInfo(OCC::AccountState *accountState, QObject *parent = 0);
qint64 lastQuotaTotalBytes() const { return _lastQuotaTotalBytes; }
qint64 lastQuotaUsedBytes() const { return _lastQuotaUsedBytes; }
/**
* When the quotainfo is active, it requests the quota at regular interval.
* When setting it to active it will request the quota immediately if the last time
* the quota was requested was more than the interval
*/
void setActive(bool active);
public Q_SLOTS:
void slotCheckQuota();
private Q_SLOTS:
void slotUpdateLastQuota(const QVariantMap &);
void slotAccountStateChanged();
void slotRequestFailed();
Q_SIGNALS:
void quotaUpdated(qint64 total, qint64 used);
private:
bool canGetQuota() const;
/// Returns the folder that quota shall be retrieved for
QString quotaBaseFolder() const;
QPointer<AccountState> _accountState;
qint64 _lastQuotaTotalBytes;
qint64 _lastQuotaUsedBytes;
QTimer _jobRestartTimer;
QDateTime _lastQuotaRecieved; // the time at which the quota was received last
bool _active; // if we should check at regular interval (when the UI is visible)
QPointer<PropfindJob> _job; // the currently running job
};
} // namespace OCC
#endif //QUOTAINFO_H