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tdemultimedia/libkcddb/asynchttplookup.cpp

160 lines
3.6 KiB

/*
Copyright (C) 2002 Rik Hemsley (rikkus) <rik@kde.org>
Copyright (C) 2002 Benjamin Meyer <ben-devel@meyerhome.net>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqstringlist.h>
#include <tqapplication.h>
#include <kdebug.h>
#include <tdeio/job.h>
#include "asynchttplookup.h"
namespace KCDDB
{
AsyncHTTPLookup::AsyncHTTPLookup()
: HTTPLookup()
{
block_ = false;
}
AsyncHTTPLookup::~AsyncHTTPLookup()
{
// Empty.
}
CDDB::Result
AsyncHTTPLookup::lookup
(
const TQString & hostName,
uint port,
const TrackOffsetList & trackOffsetList
)
{
if ( trackOffsetList.count() < 3 )
return UnknownError;
trackOffsetList_ = trackOffsetList;
connect( this, TQT_SIGNAL( queryReady() ), TQT_SLOT( slotQueryReady() ) );
connect( this, TQT_SIGNAL( readReady() ), TQT_SLOT( requestCDInfoForMatch() ) );
initURL( hostName, port );
// Run a query.
result_ = runQuery();
return result_;
}
CDDB::Result
AsyncHTTPLookup::runQuery()
{
data_ = TQByteArray();
state_ = WaitingForQueryResponse;
result_ = sendQuery();
return result_;
}
void
AsyncHTTPLookup::slotQueryReady()
{
kdDebug(60010) << "Matches Found: " << matchList_.count() << endl;
if ( Success != result_ )
{
emit finished( result_ );
return;
}
requestCDInfoForMatch();
}
void
AsyncHTTPLookup::requestCDInfoForMatch()
{
if ( matchList_.isEmpty() )
{
result_ = cdInfoList_.isEmpty()? NoRecordFound : Success;
emit finished( result_ );
return;
}
CDDBMatch match = matchList_.first();
matchList_.remove( match );
data_ = TQByteArray();
state_ = WaitingForReadResponse;
result_ = sendRead( match );
if ( Success != result_ )
emit finished( result_ );
}
void
AsyncHTTPLookup::slotData( TDEIO::Job *, const TQByteArray &data )
{
if (data.size() > 0)
{
TQDataStream stream(data_, IO_WriteOnly | IO_Append);
stream.writeRawBytes(data.data(), data.size());
}
}
void
AsyncHTTPLookup::slotResult( TDEIO::Job *job )
{
if ( 0 != job->error() )
{
result_ = ServerError;
if ( !block_ )
emit queryReady();
return;
}
jobFinished();
}
CDDB::Result
AsyncHTTPLookup::fetchURL()
{
kdDebug(60010) << "About to fetch: " << cgiURL_.url() << endl;
TDEIO::TransferJob* job = TDEIO::get( cgiURL_, false, false );
if ( 0 == job )
return ServerError;
connect( job, TQT_SIGNAL( data( TDEIO::Job *, const TQByteArray & ) ),
TQT_SLOT( slotData( TDEIO::Job *, const TQByteArray & ) ) );
connect( job, TQT_SIGNAL( result( TDEIO::Job * ) ),
TQT_SLOT( slotResult( TDEIO::Job * ) ) );
return Success;
}
}
#include "asynchttplookup.moc"
// vim:tabstop=2:shiftwidth=2:expandtab:cinoptions=(s,U1,m1