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/**************************************************************************
**
** This file is part of Qt SDK**
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact: Nokia Corporation qt-info@nokia.com**
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception version
** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you are unsure which license is appropriate for your use, please contact
** (qt-info@nokia.com).
**
**************************************************************************/
#include "extractarchiveoperation.h"
#include "extractarchiveoperation_p.h"
#include <QEventLoop>
#include <QThread>
#include <QThreadPool>
#include <QDebug>
using namespace QInstaller;
/*
TRANSLATOR QInstaller::ExtractArchiveOperation
*/
ExtractArchiveOperation::ExtractArchiveOperation()
{
setName( QLatin1String( "Extract" ) );
}
ExtractArchiveOperation::~ExtractArchiveOperation()
{
}
void ExtractArchiveOperation::backup()
{
// we need to backup on the fly...
}
bool ExtractArchiveOperation::performOperation()
{
const QStringList args = arguments();
if( args.count() != 2 ) {
setError( InvalidArguments );
setErrorString( tr("Invalid arguments in %0: %1 arguments given, 2 expected.")
.arg(name()).arg( args.count() ) );
return false;
}
const QString archivePath = args.first();
const QString targetDir = args.at( 1 );
Receiver receiver;
Callback callback;
connect( &callback, SIGNAL(progressChanged(QString)), this, SLOT(slotProgressChanged(QString)), Qt::QueuedConnection );
connect( &callback, SIGNAL(progressChanged(int)), this, SIGNAL(progressChanged(int)), Qt::QueuedConnection );
if(QInstaller::Installer *installer = this->value( QLatin1String( "installer" )).value<QInstaller::Installer*>()) {
connect( installer, SIGNAL( statusChanged( QInstaller::Installer::Status ) ), &callback,
SLOT( statusChanged( QInstaller::Installer::Status ) ), Qt::QueuedConnection );
}
//Runnable is derived from QRunable which will be deleted by the ThreadPool -> no parent is needed
Runnable* runnable = new Runnable( archivePath, targetDir, &callback );
connect( runnable, SIGNAL(finished(bool,QString)), &receiver, SLOT(runnableFinished(bool,QString)), Qt::QueuedConnection );
QEventLoop loop;
connect( &receiver, SIGNAL( finished() ), &loop, SLOT( quit() ) );
if (QThreadPool::globalInstance()->tryStart(runnable)) {
loop.exec();
} else {
//in case there is no availabe thread we should call it directly
//this is more a hack
runnable->run();
receiver.runnableFinished(true, QString());
}
typedef QPair<QString, QString> StringPair;
QVector<StringPair> backupFiles = callback.backupFiles;
//TODO use backups for rollback, too? doesn't work for uninstallation though
//delete all backups we can delete right now, remember the rest
Q_FOREACH( const StringPair& i, backupFiles )
deleteFileNowOrLater( i.second );
if ( !receiver.success ) {
setError( UserDefinedError );
setErrorString( receiver.errorString );
return false;
}
return true;
}
WorkerThread::WorkerThread( ExtractArchiveOperation *op, const QStringList &files, QObject* parent )
: QThread( parent )
, m_files( files )
, m_op( op )
{
}
/*!
\reimp
*/
void WorkerThread::run()
{
ExtractArchiveOperation* const op = m_op;//dynamic_cast< ExtractArchiveOperation* >( parent() );
Q_ASSERT( op != 0 );
int progress = -1;
int index = 0;
const int count = m_files.count();
Q_FOREACH( const QString &file, m_files )
{
const QFileInfo fi( file );
emit outputTextChanged( file );
if( fi.isFile() || fi.isSymLink() )
{
op->deleteFileNowOrLater( fi.absoluteFilePath() );
}
else if( fi.isDir() )
{
const QDir d = fi.dir();
// even remove some hidden, OS-created files in there
#if defined Q_WS_MAC
op->deleteFileNowOrLater( file + QLatin1String( "/.DS_Store" ) );
#elif defined Q_WS_WIN
op->deleteFileNowOrLater( file + QLatin1String( "/Thumbs.db" ) );
#endif
d.rmdir( file ); // directory may not exist
}
const int newProgress = (index++) * 100 / count;
if( progress != newProgress )
emit progressChanged( newProgress );
progress = newProgress;
}
}
bool ExtractArchiveOperation::undoOperation()
{
Q_ASSERT( arguments().count() == 2 );
//const QString archivePath = arguments().first();
//const QString targetDir = arguments().last();
const QStringList m_files = value( QLatin1String( "files" ) ).toStringList();
WorkerThread* const thread = new WorkerThread( this, m_files );
connect(thread, SIGNAL(outputTextChanged(QString)),
this, SIGNAL(outputTextChanged(QString)), Qt::QueuedConnection);
connect( thread, SIGNAL( progressChanged( int ) ), this, SIGNAL( progressChanged( int ) ), Qt::QueuedConnection );
QEventLoop loop;
connect( thread, SIGNAL(finished()), &loop, SLOT( quit() ), Qt::QueuedConnection );
thread->start();
loop.exec();
thread->deleteLater();
return true;
}
bool ExtractArchiveOperation::testOperation()
{
return true;
}
ExtractArchiveOperation* ExtractArchiveOperation::clone() const
{
return new ExtractArchiveOperation();
}
void ExtractArchiveOperation::slotProgressChanged( const QString& filename )
{
QStringList m_files = value( QLatin1String( "files" ) ).toStringList();
m_files.push_front( filename );
setValue( QLatin1String( "files" ), m_files );
emit outputTextChanged( filename );
}
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