File indexing completed on 2024-04-21 15:03:08

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1999 Waldo Bastian <bastian@kde.org>
     SPDX-FileCopyrightText: 2006-2009 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "kmimetypefactory_p.h"
 #include "servicesdebug.h"
 #include <QDataStream>
 #include <ksycoca.h>
 #include <ksycocadict_p.h>
 
 extern int servicesDebugArea();
 
 KMimeTypeFactory::KMimeTypeFactory(KSycoca *db)
     : KSycocaFactory(KST_KMimeTypeFactory, db)
 {
 }
 
 KMimeTypeFactory::~KMimeTypeFactory()
 {
 }
 
 int KMimeTypeFactory::entryOffset(const QString &mimeTypeName)
 {
     if (!sycocaDict()) {
         return -1; // Error!
     }
     assert(!sycoca()->isBuilding());
     const int offset = sycocaDict()->find_string(mimeTypeName.toLower());
     return offset;
 }
 
 int KMimeTypeFactory::serviceOffersOffset(const QString &mimeTypeName)
 {
     const int offset = entryOffset(mimeTypeName.toLower());
     if (!offset) {
         return -1; // Not found
     }
 
     MimeTypeEntry::Ptr newMimeType(createEntry(offset));
     if (!newMimeType) {
         return -1;
     }
     // Check whether the dictionary was right.
     if (newMimeType->name() != mimeTypeName.toLower()) {
         // No it wasn't...
         return -1;
     }
     return newMimeType->serviceOffersOffset();
 }
 
 KMimeTypeFactory::MimeTypeEntry *KMimeTypeFactory::createEntry(int offset) const
 {
     KSycocaType type;
     QDataStream *str = sycoca()->findEntry(offset, type);
     if (!str) {
         return nullptr;
     }
 
     if (type != KST_KMimeTypeEntry) {
         qCWarning(SERVICES) << "KMimeTypeFactory: unexpected object entry in KSycoca database (type=" << int(type) << ")";
         return nullptr;
     }
     MimeTypeEntry *newEntry = new MimeTypeEntry(*str, offset);
     if (newEntry && !newEntry->isValid()) {
         qCWarning(SERVICES) << "KMimeTypeFactory: corrupt object in KSycoca database!\n";
         delete newEntry;
         newEntry = nullptr;
     }
     return newEntry;
 }
 
 QStringList KMimeTypeFactory::allMimeTypes()
 {
     // TODO: reimplement in terms of "listing xdgdata-mime", to avoid ksycoca dependency,
     // then move to KMimeTypeRepository
     const KSycocaEntry::List list = allEntries();
     QStringList result;
     result.reserve(list.size());
 
     std::transform(list.cbegin(), list.cend(), std::back_inserter(result), [](const KSycocaEntry::Ptr &entry) {
         Q_ASSERT(entry->isType(KST_KMimeTypeEntry));
 
         MimeTypeEntry::Ptr mimeType(static_cast<MimeTypeEntry *>(entry.data()));
         return mimeType->name();
     });
 
     return result;
 }
 
 KMimeTypeFactory::MimeTypeEntry::Ptr KMimeTypeFactory::findMimeTypeEntryByName(const QString &name)
 {
     Q_ASSERT(sycoca()->isBuilding());
     // We're building a database - the MIME type entry must be in memory
     KSycocaEntry::Ptr servType = m_entryDict->value(name.toLower());
     return MimeTypeEntry::Ptr(static_cast<MimeTypeEntry *>(servType.data()));
 }
 
 QStringList KMimeTypeFactory::resourceDirs()
 {
     return KSycocaFactory::allDirectories(QStringLiteral("mime"));
 }
 
 ////
 
 class KMimeTypeFactory::MimeTypeEntryPrivate : public KSycocaEntryPrivate
 {
 public:
     K_SYCOCATYPE(KST_KMimeTypeEntry, KSycocaEntryPrivate)
     MimeTypeEntryPrivate(const QString &file, const QString &name)
         : KSycocaEntryPrivate(file)
         , m_name(name)
         , m_serviceOffersOffset(-1)
     {
     }
     MimeTypeEntryPrivate(QDataStream &s, int offset)
         : KSycocaEntryPrivate(s, offset)
         , m_serviceOffersOffset(-1)
     {
         s >> m_name >> m_serviceOffersOffset;
     }
     QString name() const override
     {
         return m_name;
     }
     void save(QDataStream &s) override;
 
     QString m_name;
     int m_serviceOffersOffset;
 };
 
 void KMimeTypeFactory::MimeTypeEntryPrivate::save(QDataStream &s)
 {
     KSycocaEntryPrivate::save(s);
     s << m_name << m_serviceOffersOffset;
 }
 
 ////
 
 KMimeTypeFactory::MimeTypeEntry::MimeTypeEntry(const QString &file, const QString &name)
     : KSycocaEntry(*new MimeTypeEntryPrivate(file, name.toLower()))
 {
 }
 
 KMimeTypeFactory::MimeTypeEntry::MimeTypeEntry(QDataStream &s, int offset)
     : KSycocaEntry(*new MimeTypeEntryPrivate(s, offset))
 {
 }
 
 KMimeTypeFactory::MimeTypeEntry::~MimeTypeEntry()
 {
 }
 
 int KMimeTypeFactory::MimeTypeEntry::serviceOffersOffset() const
 {
     Q_D(const MimeTypeEntry);
     return d->m_serviceOffersOffset;
 }
 
 void KMimeTypeFactory::MimeTypeEntry::setServiceOffersOffset(int off)
 {
     Q_D(MimeTypeEntry);
     d->m_serviceOffersOffset = off;
 }