diskusage.h
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/*
* Copyright (C) 2015 Jolla Ltd.
* Contact: Thomas Perl <thomas.perl@jolla.com>
*
* You may use this file under the terms of the BSD license as follows:
*
* "Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Nemo Mobile nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
*/
#ifndef DISKUSAGE_H
#define DISKUSAGE_H
#include <QObject>
#include <QVariant>
#include <QJSValue>
#include <QScopedPointer>
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#include <systemsettingsglobal.h>
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class DiskUsagePrivate;
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class SYSTEMSETTINGS_EXPORT DiskUsage : public QObject
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{
Q_OBJECT
Q_DECLARE_PRIVATE(DiskUsage)
// True while calculation takes place
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Q_PROPERTY(bool working READ working NOTIFY workingChanged)
Q_PROPERTY(QVariantMap result READ result NOTIFY resultChanged)
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public:
explicit DiskUsage(QObject *parent=0);
virtual ~DiskUsage();
// Calculate the disk usage of the given paths, then call
// callback with a QVariantMap (mapping paths to usages in bytes)
Q_INVOKABLE void calculate(const QStringList &paths, QJSValue callback);
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QVariantMap result() const;
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signals:
void workingChanged();
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void resultChanged();
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signals:
void submit(QStringList paths, QJSValue *callback);
private slots:
void finished(QVariantMap usage, QJSValue *callback);
private:
bool working() const { return m_working; }
void setWorking(bool working) {
if (m_working != working) {
m_working = working;
emit workingChanged();
}
}
private:
QScopedPointer<DiskUsagePrivate> const d_ptr;
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QVariantMap m_result;
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bool m_working;
};
#endif /* DISKUSAGE_H */