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Diffstat (limited to 'tdeio/tdeio/metainfojob.cpp')
| -rw-r--r-- | tdeio/tdeio/metainfojob.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/tdeio/tdeio/metainfojob.cpp b/tdeio/tdeio/metainfojob.cpp new file mode 100644 index 000000000..d9a31ab0e --- /dev/null +++ b/tdeio/tdeio/metainfojob.cpp @@ -0,0 +1,184 @@ +// -*- c++ -*- +// vim: ts=4 sw=4 et +/* This file is part of the KDE libraries + Copyright (C) 2002 Rolf Magnus <ramagnus@kde.org> + + 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 version 2.0. + + 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. + + $Id$ +*/ + +#include <kdatastream.h> // Do not remove, needed for correct bool serialization +#include <tdefileitem.h> +#include <kdebug.h> +#include <tdefilemetainfo.h> +#include <tdeio/kservice.h> +#include <tdeparts/componentfactory.h> + +#include <tqtimer.h> + +#include "metainfojob.moc" + +using namespace TDEIO; + +struct TDEIO::MetaInfoJobPrivate +{ + KFileItemList items; // all the items we got + KFileItemListIterator* currentItem; // argh! No default constructor + bool deleteItems; // Delete the KFileItems when done? + bool succeeded; // if the current item is ok +}; + +MetaInfoJob::MetaInfoJob(const KFileItemList &items, bool deleteItems) + : TDEIO::Job(false /* no GUI */) +{ + d = new MetaInfoJobPrivate; + d->deleteItems = deleteItems; + d->succeeded = false; + d->items = items; + d->currentItem = new KFileItemListIterator(d->items); + + d->items.setAutoDelete(deleteItems); + + if (d->currentItem->isEmpty()) + { + kdDebug(7007) << "nothing to do for the MetaInfoJob\n"; + emitResult(); + return; + } + + kdDebug(7007) << "starting MetaInfoJob\n"; + + // Return to event loop first, determineNextFile() might delete this; + // (no idea what that means, it comes from previewjob) + TQTimer::singleShot(0, this, TQT_SLOT(start())); +} + +MetaInfoJob::~MetaInfoJob() +{ + delete d->currentItem; + delete d; +} + +void MetaInfoJob::start() +{ + getMetaInfo(); +} + +void MetaInfoJob::removeItem(const KFileItem* item) +{ + if (d->currentItem->current() == item) + { + subjobs.first()->kill(); + subjobs.removeFirst(); + determineNextFile(); + } + + d->items.remove(d->items.find(item)); +} + +void MetaInfoJob::determineNextFile() +{ + if (d->currentItem->atLast()) + { + kdDebug(7007) << "finished MetaInfoJob\n"; + emitResult(); + return; + } + + ++(*d->currentItem); + d->succeeded = false; + + // does the file item already have the needed info? Then shortcut + if (d->currentItem->current()->metaInfo(false).isValid()) + { +// kdDebug(7007) << "Is already valid *************************\n"; + emit gotMetaInfo(d->currentItem->current()); + determineNextFile(); + return; + } + + getMetaInfo(); +} + +void MetaInfoJob::slotResult( TDEIO::Job *job ) +{ + subjobs.remove(job); + Q_ASSERT(subjobs.isEmpty()); // We should have only one job at a time ... + + determineNextFile(); +} + +void MetaInfoJob::getMetaInfo() +{ + Q_ASSERT(!d->currentItem->isEmpty()); + + KURL URL; + URL.setProtocol("metainfo"); + URL.setPath(d->currentItem->current()->url().path()); + + TDEIO::TransferJob* job = TDEIO::get(URL, false, false); + addSubjob(job); + + connect(job, TQT_SIGNAL(data(TDEIO::Job *, const TQByteArray &)), + this, TQT_SLOT(slotMetaInfo(TDEIO::Job *, const TQByteArray &))); + + job->addMetaData("mimeType", d->currentItem->current()->mimetype()); +} + + +void MetaInfoJob::slotMetaInfo(TDEIO::Job*, const TQByteArray &data) +{ + KFileMetaInfo info; + TQDataStream s(data, IO_ReadOnly); + + s >> info; + + d->currentItem->current()->setMetaInfo(info); + emit gotMetaInfo(d->currentItem->current()); + d->succeeded = true; +} + +TQStringList MetaInfoJob::availablePlugins() +{ + TQStringList result; + KTrader::OfferList plugins = KTrader::self()->query("KFilePlugin"); + for (KTrader::OfferList::ConstIterator it = plugins.begin(); it != plugins.end(); ++it) + result.append((*it)->desktopEntryName()); + return result; +} + +TQStringList MetaInfoJob::supportedMimeTypes() +{ + TQStringList result; + KTrader::OfferList plugins = KTrader::self()->query("KFilePlugin"); + for (KTrader::OfferList::ConstIterator it = plugins.begin(); it != plugins.end(); ++it) + result += (*it)->property("MimeTypes").toStringList(); + return result; +} + +TDEIO_EXPORT MetaInfoJob *TDEIO::fileMetaInfo( const KFileItemList &items) +{ + return new MetaInfoJob(items, false); +} + +TDEIO_EXPORT MetaInfoJob *TDEIO::fileMetaInfo( const KURL::List &items) +{ + KFileItemList fileItems; + for (KURL::List::ConstIterator it = items.begin(); it != items.end(); ++it) + fileItems.append(new KFileItem(KFileItem::Unknown, KFileItem::Unknown, *it, true)); + return new MetaInfoJob(fileItems, true); +} + |