89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
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// vim: set tabstop=4 shiftwidth=4 expandtab
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/*
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Gwenview - A simple image viewer for KDE
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Copyright 2000-2007 Aurélien Gâteau <agateau@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 License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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
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GNU 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; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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// Self
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#include "archiveutils.h"
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// Qt
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#include <QMimeDatabase>
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// KF
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#include <KFileItem>
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#include <KProtocolManager>
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// Local
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#include "gwenview_lib_debug.h"
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namespace Gwenview
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{
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namespace ArchiveUtils
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{
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bool fileItemIsArchive(const KFileItem &item)
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{
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const QMimeType mimeType = item.determineMimeType();
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if (!mimeType.isValid()) {
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qCWarning(GWENVIEW_LIB_LOG) << "determineMimeType() returned a null pointer";
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return false;
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}
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return !ArchiveUtils::protocolForMimeType(mimeType.name()).isEmpty();
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}
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bool fileItemIsDirOrArchive(const KFileItem &item)
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{
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return item.isDir() || fileItemIsArchive(item);
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}
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QString protocolForMimeType(const QString &mimeType)
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{
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static QHash<QString, QString> cache;
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QHash<QString, QString>::ConstIterator it = cache.constFind(mimeType);
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if (it != cache.constEnd()) {
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return it.value();
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}
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if (mimeType == QLatin1String("image/svg+xml-compressed")) {
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// We don't want .svgz to be considered as archives because QtSvg knows
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// how to decode gzip-ed svg files
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cache.insert(mimeType, QString());
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return {};
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}
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QString protocol = KProtocolManager::protocolForArchiveMimetype(mimeType);
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if (protocol.isEmpty()) {
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// No protocol, try with mimeType parents. This is useful for .cbz for
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// example
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const QMimeType mime = QMimeDatabase().mimeTypeForName(mimeType);
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const QStringList allAncestors = mime.allAncestors();
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for (const QString &parentMimeType : allAncestors) {
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protocol = KProtocolManager::protocolForArchiveMimetype(parentMimeType);
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if (!protocol.isEmpty()) {
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break;
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}
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}
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}
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cache.insert(mimeType, protocol);
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return protocol;
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}
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} // namespace ArchiveUtils
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} // namespace Gwenview
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