diff options
Diffstat (limited to 'kuickshow/src/kuickfile.cpp')
| -rw-r--r-- | kuickshow/src/kuickfile.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/kuickshow/src/kuickfile.cpp b/kuickshow/src/kuickfile.cpp new file mode 100644 index 00000000..1dd259d6 --- /dev/null +++ b/kuickshow/src/kuickfile.cpp @@ -0,0 +1,194 @@ +#include <qfile.h> + +#include <kdebug.h> +#include <kdeversion.h> +#include <kinstance.h> +#include <klocale.h> +#include <kprogress.h> +#include <kio/job.h> +#include <kio/netaccess.h> +#include <ktempfile.h> + +#include "filecache.h" +#include "kuickfile.h" + +KuickFile::KuickFile(const KURL& url) + : QObject(), + 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 = KIO::NetAccess::mostLocalURL( m_url, 0L ); + if ( mostLocal.isValid() && mostLocal.isLocalFile() ) + m_localFile = mostLocal.path(); + } +} + +KuickFile::~KuickFile() +{ + delete m_job; + + if ( hasDownloaded() ) + QFile::remove( m_localFile ); +} + +QString KuickFile::localFile() const +{ + // Note: never call isAvailable() from here, directly or indirectly + + if ( isDownloading() ) + return QString::null; + + 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 = QString::null; + m_currentProgress = 0; + + + QString ext; + QString fileName = m_url.fileName(); + int extIndex = fileName.findRev('.'); + if ( extIndex > 0 ) + ext = fileName.mid( extIndex + 1 ); + + QString 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 = KIO::file_copy( m_url, destURL, -1, true, false, false ); // handling progress ourselves + m_job->setAutoErrorHandlingEnabled( true ); + connect( m_job, SIGNAL( result( KIO::Job * )), SLOT( slotResult( KIO::Job * ) )); + connect( m_job, SIGNAL( percent( KIO::Job *, unsigned long )), SLOT( slotProgress( KIO::Job *, unsigned long ) )); + + // TODO: generify background/foreground downloading? + + return m_job != 0L; +} + +KuickFile::DownloadStatus KuickFile::waitForDownload( QWidget *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( KIO::Job *job ) +{ + if (job != m_job) { // huh? + return; + } + + m_job = 0L; + + if ( job->error() != 0 ) { + m_currentProgress = 0; + + if ( job->error() != KIO::ERR_USER_CANCELED ) + kdWarning() << "ERROR: KuickFile::slotResult: " << job->errorString() << endl; + + QString canceledFile = static_cast<KIO::FileCopyJob*>(job)->destURL().path(); + QFile::remove( canceledFile ); + m_progress->topLevelWidget()->hide(); + } + else { + m_localFile = static_cast<KIO::FileCopyJob*>(job)->destURL().path(); + emit downloaded( this ); // before closing the progress dialog + + if ( m_progress ) { + m_progress->setProgress( 100 ); +#define BUGGY_VERSION KDE_MAKE_VERSION(3,5,2) + if ( KDE::version() <= BUGGY_VERSION ) { + m_progress->topLevelWidget()->hide(); // ### workaround broken KProgressDialog + } + } + } +} + +void KuickFile::slotProgress( KIO::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" |