KuickShow – image/slideshow viewer
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

194 lines
4.9 KiB

#include <tqfile.h>
#include <kdebug.h>
#include <tdeversion.h>
#include <kinstance.h>
#include <klocale.h>
#include <kprogress.h>
#include <tdeio/job.h>
#include <tdeio/netaccess.h>
#include <ktempfile.h>
#include "filecache.h"
#include "kuickfile.h"
KuickFile::KuickFile(const KURL& url)
: TQObject(),
m_url( url ),
m_job( 0L ),
m_progress( 0L ),
m_currentProgress( 0 )
{
if ( m_url.isLocalFile())
m_localFile = m_url.path();
else {
const KURL& mostLocal = TDEIO::NetAccess::mostLocalURL( m_url, 0L );
if ( mostLocal.isValid() && mostLocal.isLocalFile() )
m_localFile = mostLocal.path();
}
}
KuickFile::~KuickFile()
{
delete m_job;
if ( hasDownloaded() )
TQFile::remove( m_localFile );
}
TQString KuickFile::localFile() const
{
// Note: never call isAvailable() from here, directly or indirectly
if ( isDownloading() )
return TQString();
return m_localFile;
}
bool KuickFile::hasDownloaded() const
{
return !m_url.isLocalFile() && isAvailable() && m_job != 0L;
}
// ### need an API for refreshing the file?
bool KuickFile::download()
{
if ( m_url.isLocalFile() || isAvailable() )
return true;
if ( isDownloading() )
return true;
// reinitialize
m_localFile = TQString();
m_currentProgress = 0;
TQString ext;
TQString fileName = m_url.fileName();
int extIndex = fileName.findRev('.');
if ( extIndex > 0 )
ext = fileName.mid( extIndex + 1 );
TQString tempDir = FileCache::self()->tempDir();
KTempFile tempFile( tempDir, ext );
tempFile.setAutoDelete( tempDir.isNull() ); // in case there is no proper tempdir, make sure to delete those files!
if ( tempFile.status() != 0 )
return false;
tempFile.close();
if ( tempFile.status() != 0 )
return false;
KURL destURL;
destURL.setPath( tempFile.name() );
m_job = TDEIO::file_copy( m_url, destURL, -1, true, false, false ); // handling progress ourselves
m_job->setAutoErrorHandlingEnabled( true );
connect( m_job, TQT_SIGNAL( result( TDEIO::Job * )), TQT_SLOT( slotResult( TDEIO::Job * ) ));
connect( m_job, TQT_SIGNAL( percent( TDEIO::Job *, unsigned long )), TQT_SLOT( slotProgress( TDEIO::Job *, unsigned long ) ));
// TODO: generify background/foreground downloading?
return m_job != 0L;
}
KuickFile::DownloadStatus KuickFile::waitForDownload( TQWidget *parent )
{
if ( isAvailable() )
return OK;
if ( !isDownloading() ) {
if ( !download() )
return ERROR;
}
KProgressDialog *dialog = new KProgressDialog( parent );
dialog->setModal( true );
dialog->setCaption( i18n("Downloading %1...").arg( m_url.fileName() ) );
dialog->setLabel( i18n("Please wait while downloading\n%1").arg( m_url.prettyURL() ));
dialog->setAllowCancel( true );
dialog->setAutoClose( true );
m_progress = dialog->progressBar();
m_progress->setTotalSteps( 100 ); // percent
m_progress->setProgress( m_currentProgress );
dialog->exec();
bool canceled = dialog->wasCancelled();
delete dialog;
m_progress = 0L;
if ( canceled && m_job ) {
m_job->kill();
m_job = 0L;
m_currentProgress = 0;
}
// ### when aborted, remove KuickImage from FileCache?
if ( canceled )
return CANCELED;
if ( !isAvailable() )
return ERROR;
// ### use custom progress dialog with OK, SKIP, CANCEL?
return OK;
}
void KuickFile::slotResult( TDEIO::Job *job )
{
if (job != m_job) { // huh?
return;
}
m_job = 0L;
if ( job->error() != 0 ) {
m_currentProgress = 0;
if ( job->error() != TDEIO::ERR_USER_CANCELED )
kdWarning() << "ERROR: KuickFile::slotResult: " << job->errorString() << endl;
TQString canceledFile = static_cast<TDEIO::FileCopyJob*>(job)->destURL().path();
TQFile::remove( canceledFile );
m_progress->topLevelWidget()->hide();
}
else {
m_localFile = static_cast<TDEIO::FileCopyJob*>(job)->destURL().path();
emit downloaded( this ); // before closing the progress dialog
if ( m_progress ) {
m_progress->setProgress( 100 );
#define BUGGY_VERSION TDE_MAKE_VERSION(3,5,2)
if ( KDE::version() <= BUGGY_VERSION ) {
m_progress->topLevelWidget()->hide(); // ### workaround broken KProgressDialog
}
}
}
}
void KuickFile::slotProgress( TDEIO::Job *job, unsigned long percent )
{
if (job != m_job) { // huh?
return;
}
m_currentProgress = percent;
if ( !m_progress )
return;
// only set 100% in slotResult. Otherwise, the progress dialog would be closed
// before slotResult() is called.
if ( percent >= 100 )
percent = 99;
m_progress->setProgress( (int) percent );
}
bool operator==( const KuickFile& first, const KuickFile& second ) {
return first.url().equals( second.url() );
}
#include "kuickfile.moc"