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/****************************************************************************
** Copyright (C) 2001-2010 Klaralvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Tools library.
**
** Licensees holding valid commercial KD Tools licenses may use this file in
** accordance with the KD Tools Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU Lesser General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.LGPL included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/
#include "kdjob.h"
#include <QtCore/QDebug>
#include <QtCore/QEventLoop>
#include <QtCore/QTimer>
// -- KDJob::Private
class KDJob::Private
{
KDJob *const q;
public:
explicit Private(KDJob *qq)
: q(qq)
, error(KDJob::NoError)
, caps(KDJob::NoCapabilities)
, autoDelete(true)
, totalAmount(100)
, processedAmount(0)
, m_timeout(-1)
{
connect(&m_timer, SIGNAL(timeout()), q, SLOT(cancel()));
}
~Private()
{
m_timer.stop();
}
void delayedStart()
{
q->doStart();
emit q->started(q);
}
void waitForSignal(const char *sig)
{
QEventLoop loop;
q->connect(q, sig, &loop, SLOT(quit()));
if (m_timeout >= 0)
m_timer.start(m_timeout);
else
m_timer.stop();
loop.exec();
}
int error;
QString errorString;
KDJob::Capabilities caps;
bool autoDelete;
quint64 totalAmount;
quint64 processedAmount;
int m_timeout;
QTimer m_timer;
};
// -- KDJob
KDJob::KDJob(QObject *parent)
: QObject(parent),
d(new Private(this))
{
connect(this, SIGNAL(finished(KDJob*)), this, SLOT(onFinished()));
}
KDJob::~KDJob()
{
delete d;
}
bool KDJob::autoDelete() const
{
return d->autoDelete;
}
void KDJob::setAutoDelete(bool autoDelete)
{
d->autoDelete = autoDelete;
}
int KDJob::error() const
{
return d->error;
}
QString KDJob::errorString() const
{
return d->errorString;
}
void KDJob::emitFinished()
{
emit finished(this);
}
void KDJob::emitFinishedWithError(int error, const QString &errorString)
{
d->error = error;
d->errorString = errorString;
emitFinished();
}
void KDJob::setError(int error)
{
d->error = error;
}
void KDJob::setErrorString(const QString &errorString)
{
d->errorString = errorString;
}
void KDJob::waitForStarted()
{
d->waitForSignal(SIGNAL(started(KDJob*)));
}
void KDJob::waitForFinished()
{
d->waitForSignal(SIGNAL(finished(KDJob*)));
}
KDJob::Capabilities KDJob::capabilities() const
{
return d->caps;
}
bool KDJob::hasCapability(Capability c) const
{
return d->caps.testFlag(c);
}
void KDJob::setCapabilities(Capabilities c)
{
d->caps = c;
}
void KDJob::start()
{
QMetaObject::invokeMethod(this, "delayedStart", Qt::QueuedConnection);
}
void KDJob::cancel()
{
if (d->caps & Cancelable) {
doCancel();
if (error() == NoError) {
setError(Canceled);
setErrorString(tr("Canceled"));
}
emitFinished();
} else {
qDebug() << "The current job can not be canceled, missing \"Cancelable\" capability!";
}
}
quint64 KDJob::totalAmount() const
{
return d->totalAmount;
}
quint64 KDJob::processedAmount() const
{
return d->processedAmount;
}
void KDJob::setTotalAmount(quint64 amount)
{
if (d->totalAmount == amount)
return;
d->totalAmount = amount;
emit progress(this, d->processedAmount, d->totalAmount);
}
/*!
Returns the timeout in milliseconds before the jobs cancel slot gets triggered. A return value of -1
means there is currently no timeout used for the job.
*/
int KDJob::timeout() const
{
return d->m_timeout;
}
/*!
Sets the timeout in \a milliseconds before the jobs cancel slot gets triggered. \note Only jobs that
have the \bold KDJob::Cancelable capability can be canceled by an timeout. A value of -1 will stop the
timeout mechanism.
*/
void KDJob::setTimeout(int milliseconds)
{
d->m_timeout = milliseconds;
}
void KDJob::setProcessedAmount(quint64 amount)
{
if (d->processedAmount == amount)
return;
d->processedAmount = amount;
emit progress(this, d->processedAmount, d->totalAmount);
}
void KDJob::onFinished()
{
d->m_timer.stop();
if (d->autoDelete)
deleteLater();
}
#include "moc_kdjob.cpp"
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