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122 lignes
3.3 KiB
122 lignes
3.3 KiB
/* This file is part of the KDE project
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Copyright (C) 2001 Carsten Pfeiffer <pfeiffer@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation, version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <kstaticdeleter.h>
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#include <tdeio/scheduler.h>
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#include "loader.h"
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Loader *Loader::s_self = 0L;
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KStaticDeleter<Loader> sd;
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Loader * Loader::self()
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{
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if ( !s_self )
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s_self = sd.setObject( new Loader() );
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return s_self;
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}
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Loader::Loader() : TQObject()
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{
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}
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Loader::~Loader()
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{
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disconnect( this, TQT_SIGNAL( finished( const KURL&, const TQByteArray& )));
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DownloadIterator it = m_downloads.begin();
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for ( ; it != m_downloads.end(); ++it ) {
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it.key()->kill();
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delete it.data();
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}
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s_self = 0L;
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}
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void Loader::requestDownload( const KURL& url )
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{
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DownloadIterator it = m_downloads.begin();
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for ( ; it != m_downloads.end(); ++it ) {
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if ( it.key()->url() == url )
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return;
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}
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TDEIO::TransferJob *job = TDEIO::get( url, false, false );
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TDEIO::Scheduler::scheduleJob(job);
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connect( job , TQT_SIGNAL( data( TDEIO::Job *, const TQByteArray& )),
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TQT_SLOT( slotData( TDEIO::Job *, const TQByteArray& )));
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connect( job , TQT_SIGNAL( result( TDEIO::Job * )),
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TQT_SLOT( slotResult( TDEIO::Job * )));
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Download *d = new Download();
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m_downloads.insert( job, d );
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}
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void Loader::slotData( TDEIO::Job *job, const TQByteArray& data )
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{
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DownloadIterator it = m_downloads.find( static_cast<TDEIO::TransferJob*>(job) );
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if ( it != m_downloads.end() ) {
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TQBuffer& buffer = it.data()->m_buffer;
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if ( !buffer.isOpen() )
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buffer.open( IO_ReadWrite );
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if ( !buffer.isOpen() ) {
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tqDebug("********* EEK, can't open buffer for thumbnail download!");
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return;
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}
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buffer.writeBlock( data.data(), data.size() );
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}
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}
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void Loader::slotResult( TDEIO::Job *job )
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{
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TDEIO::TransferJob *tjob = static_cast<TDEIO::TransferJob*>( job );
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DownloadIterator it = m_downloads.find( tjob );
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if ( it != m_downloads.end() ) {
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Download *d = it.data();
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if ( job->error() != 0 )
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emit finished( tjob->url(), TQByteArray() );
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else
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emit finished( tjob->url(), d->m_buffer.buffer() );
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delete d;
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m_downloads.remove( it );
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}
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}
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// ### simultaneous downloads with multiple views? reference count downloads!
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void Loader::removeDownload( const KURL& url )
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{
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DownloadIterator it = m_downloads.begin();
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for ( ; it != m_downloads.end(); ++it ) {
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if ( it.key()->url() == url ) {
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it.key()->kill();
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delete it.data();
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return;
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}
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}
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}
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#include "loader.moc"
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