mirror of
https://github.com/LMMS/lmms.git
synced 2026-03-10 10:10:02 -04:00
96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/*
|
|
* WebResourceProvider.h - header file for WebResourceProvider
|
|
*
|
|
* Copyright (c) 2009-2010 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;
|
|
|
|
|
|
/*! \brief The WebResourceProvider class provides a ResourceProvider
|
|
* implementation which serves data from the internet (currently
|
|
* specific to LSP only).
|
|
*
|
|
* Most of this class is network management code (quite highlevel thanks to
|
|
* QtNetwork though). Besides that it translates web resource index files into
|
|
* a ResourceDB and fetches files by given hash.
|
|
*/
|
|
|
|
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
|