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/***************************************************************************
* Copyright (C) 2014 by Frank Reininghaus <[email protected]> *
* *
* 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. *
* *
* 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 *
***************************************************************************/
#include "spaceinfoobserver.h"
#include "mountpointobserver.h"
SpaceInfoObserver::SpaceInfoObserver(const QUrl& url, QObject* parent) :
QObject(parent),
m_mountPointObserver(nullptr),
m_dataSize(0),
m_dataAvailable(0)
{
m_mountPointObserver = MountPointObserver::observerForUrl(url);
m_mountPointObserver->ref();
connect(m_mountPointObserver, &MountPointObserver::spaceInfoChanged, this, &SpaceInfoObserver::spaceInfoChanged);
m_mountPointObserver->update();
}
SpaceInfoObserver::~SpaceInfoObserver()
{
if (m_mountPointObserver) {
m_mountPointObserver->deref();
m_mountPointObserver = nullptr;
}
}
quint64 SpaceInfoObserver::size() const
{
return m_dataSize;
}
quint64 SpaceInfoObserver::available() const
{
return m_dataAvailable;
}
void SpaceInfoObserver::setUrl(const QUrl& url)
{
MountPointObserver* newObserver = MountPointObserver::observerForUrl(url);
if (newObserver != m_mountPointObserver) {
if (m_mountPointObserver) {
disconnect(m_mountPointObserver, &MountPointObserver::spaceInfoChanged, this, &SpaceInfoObserver::spaceInfoChanged);
m_mountPointObserver->deref();
m_mountPointObserver = nullptr;
}
m_mountPointObserver = newObserver;
m_mountPointObserver->ref();
connect(m_mountPointObserver, &MountPointObserver::spaceInfoChanged, this, &SpaceInfoObserver::spaceInfoChanged);
// If newObserver is cached it won't call update until the next timer update,
// so update the observer now.
m_mountPointObserver->update();
}
}
void SpaceInfoObserver::spaceInfoChanged(quint64 size, quint64 available)
{
// Make sure that the size has actually changed
if (m_dataSize != size || m_dataAvailable != available) {
m_dataSize = size;
m_dataAvailable = available;
emit valuesChanged();
}
}
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