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/* This file is part of the KDE project
Copyright (C) 2001 Carsten Pfeiffer <pfeiffer@kde.org>
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, version 2.
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 the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <kstaticdeleter.h>
#include <kio/scheduler.h>
#include "loader.h"
Loader *Loader::s_self = 0L;
KStaticDeleter<Loader> sd;
Loader * Loader::self()
{
if ( !s_self )
s_self = sd.setObject( new Loader() );
return s_self;
}
Loader::Loader() : TQObject()
{
}
Loader::~Loader()
{
disconnect( this, TQT_SIGNAL( finished( const KURL&, const TQByteArray& )));
DownloadIterator it = m_downloads.begin();
for ( ; it != m_downloads.end(); ++it ) {
it.key()->kill();
delete it.data();
}
s_self = 0L;
}
void Loader::requestDownload( const KURL& url )
{
DownloadIterator it = m_downloads.begin();
for ( ; it != m_downloads.end(); ++it ) {
if ( it.key()->url() == url )
return;
}
KIO::TransferJob *job = KIO::get( url, false, false );
KIO::Scheduler::scheduleJob(job);
connect( job , TQT_SIGNAL( data( KIO::Job *, const TQByteArray& )),
TQT_SLOT( slotData( KIO::Job *, const TQByteArray& )));
connect( job , TQT_SIGNAL( result( KIO::Job * )),
TQT_SLOT( slotResult( KIO::Job * )));
Download *d = new Download();
m_downloads.insert( job, d );
}
void Loader::slotData( KIO::Job *job, const TQByteArray& data )
{
DownloadIterator it = m_downloads.find( static_cast<KIO::TransferJob*>(job) );
if ( it != m_downloads.end() ) {
TQBuffer& buffer = it.data()->m_buffer;
if ( !buffer.isOpen() )
buffer.open( IO_ReadWrite );
if ( !buffer.isOpen() ) {
qDebug("********* EEK, can't open buffer for thumbnail download!");
return;
}
buffer.writeBlock( data.data(), data.size() );
}
}
void Loader::slotResult( KIO::Job *job )
{
KIO::TransferJob *tjob = static_cast<KIO::TransferJob*>( job );
DownloadIterator it = m_downloads.find( tjob );
if ( it != m_downloads.end() ) {
Download *d = it.data();
if ( job->error() != 0 )
emit finished( tjob->url(), TQByteArray() );
else
emit finished( tjob->url(), d->m_buffer.buffer() );
delete d;
m_downloads.remove( it );
}
}
// ### simultaneous downloads with multiple views? reference count downloads!
void Loader::removeDownload( const KURL& url )
{
DownloadIterator it = m_downloads.begin();
for ( ; it != m_downloads.end(); ++it ) {
if ( it.key()->url() == url ) {
it.key()->kill();
delete it.data();
return;
}
}
}
#include "loader.moc"
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