Files
lmms/include/WebResourceProvider.h
Tobias Doerffel bb4c93ce37 WebResourceProvider: moved from QHttp to QNetworkAccessManager
QHttp is quite low-level while QNetworkAccessManager offers a well
designed API for accessing network resources. Therefore switched backend
of WebResourceProvider from QHttp to QNetworkAccessManager.
2009-09-15 01:24:57 +02:00

87 lines
2.2 KiB
C++

/*
* WebResourceProvider.h - header file for WebResourceProvider
*
* Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
*
* 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 (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#ifndef _WEB_RESOURCE_PROVIDER_H
#define _WEB_RESOURCE_PROVIDER_H
#include <QtXml/QDomNode>
#include "ResourceProvider.h"
#include "ResourceItem.h"
#include "ProgressTrackingNetworkAccessManager.h"
class QBuffer;
class QNetworkReply;
class WebResourceProvider : public ResourceProvider
{
Q_OBJECT
public:
WebResourceProvider( const QString & _url );
virtual ~WebResourceProvider();
virtual QString providerName() const
{
return "WebResourceProvider";
}
virtual void updateDatabase();
virtual int dataSize( const ResourceItem * _item ) const
{
// asume that the size we have set before from the web
// catalogue is correct
return _item->size();
}
virtual QByteArray fetchData( const ResourceItem * _item,
int _maxSize = -1 ) const;
virtual bool isLocal() const
{
return false;
}
private slots:
void finishDownload( QNetworkReply * _reply );
private:
ResourceItem::Relation * addRelation( ResourceItem::Relation * _parent,
ResourceItem * _item );
void importNodeIntoDB( const QDomNode & n,
ResourceItem::Relation * _parent );
void download( const QUrl & _url, QBuffer * _target ) const;
void downloadAsync( const QUrl & _url, QBuffer * _target ) const;
typedef QMap<QNetworkReply *, QBuffer *> DownloadMap;
static DownloadMap m_downloads;
} ;
#endif