File indexing completed on 2024-11-03 03:42:21
0001 /* 0002 This file is part of the KDE libraries 0003 SPDX-FileCopyrightText: 1999 Waldo Bastian <bastian@kde.org> 0004 SPDX-FileCopyrightText: 2006-2009 David Faure <faure@kde.org> 0005 0006 SPDX-License-Identifier: LGPL-2.0-or-later 0007 */ 0008 0009 #include "kmimetypefactory_p.h" 0010 #include "ksycocaentry_p.h" 0011 #include "servicesdebug.h" 0012 #include <QDataStream> 0013 #include <ksycoca.h> 0014 #include <ksycocadict_p.h> 0015 0016 extern int servicesDebugArea(); 0017 0018 KMimeTypeFactory::KMimeTypeFactory(KSycoca *db) 0019 : KSycocaFactory(KST_KMimeTypeFactory, db) 0020 { 0021 } 0022 0023 KMimeTypeFactory::~KMimeTypeFactory() 0024 { 0025 } 0026 0027 int KMimeTypeFactory::entryOffset(const QString &mimeTypeName) 0028 { 0029 if (!sycocaDict()) { 0030 return -1; // Error! 0031 } 0032 assert(!sycoca()->isBuilding()); 0033 const int offset = sycocaDict()->find_string(mimeTypeName.toLower()); 0034 return offset; 0035 } 0036 0037 int KMimeTypeFactory::serviceOffersOffset(const QString &mimeTypeName) 0038 { 0039 const int offset = entryOffset(mimeTypeName.toLower()); 0040 if (!offset) { 0041 return -1; // Not found 0042 } 0043 0044 MimeTypeEntry::Ptr newMimeType(createEntry(offset)); 0045 if (!newMimeType) { 0046 return -1; 0047 } 0048 // Check whether the dictionary was right. 0049 if (newMimeType->name() != mimeTypeName.toLower()) { 0050 // No it wasn't... 0051 return -1; 0052 } 0053 return newMimeType->serviceOffersOffset(); 0054 } 0055 0056 KMimeTypeFactory::MimeTypeEntry *KMimeTypeFactory::createEntry(int offset) const 0057 { 0058 KSycocaType type; 0059 QDataStream *str = sycoca()->findEntry(offset, type); 0060 if (!str) { 0061 return nullptr; 0062 } 0063 0064 if (type != KST_KMimeTypeEntry) { 0065 qCWarning(SERVICES) << "KMimeTypeFactory: unexpected object entry in KSycoca database (type=" << int(type) << ")"; 0066 return nullptr; 0067 } 0068 MimeTypeEntry *newEntry = new MimeTypeEntry(*str, offset); 0069 if (newEntry && !newEntry->isValid()) { 0070 qCWarning(SERVICES) << "KMimeTypeFactory: corrupt object in KSycoca database!\n"; 0071 delete newEntry; 0072 newEntry = nullptr; 0073 } 0074 return newEntry; 0075 } 0076 0077 QStringList KMimeTypeFactory::allMimeTypes() 0078 { 0079 // TODO: reimplement in terms of "listing xdgdata-mime", to avoid ksycoca dependency, 0080 // then move to KMimeTypeRepository 0081 const KSycocaEntry::List list = allEntries(); 0082 QStringList result; 0083 result.reserve(list.size()); 0084 0085 std::transform(list.cbegin(), list.cend(), std::back_inserter(result), [](const KSycocaEntry::Ptr &entry) { 0086 Q_ASSERT(entry->isType(KST_KMimeTypeEntry)); 0087 0088 MimeTypeEntry::Ptr mimeType(static_cast<MimeTypeEntry *>(entry.data())); 0089 return mimeType->name(); 0090 }); 0091 0092 return result; 0093 } 0094 0095 KMimeTypeFactory::MimeTypeEntry::Ptr KMimeTypeFactory::findMimeTypeEntryByName(const QString &name) 0096 { 0097 Q_ASSERT(sycoca()->isBuilding()); 0098 // We're building a database - the MIME type entry must be in memory 0099 KSycocaEntry::Ptr servType = m_entryDict->value(name.toLower()); 0100 return MimeTypeEntry::Ptr(static_cast<MimeTypeEntry *>(servType.data())); 0101 } 0102 0103 QStringList KMimeTypeFactory::resourceDirs() 0104 { 0105 return KSycocaFactory::allDirectories(QStringLiteral("mime")); 0106 } 0107 0108 //// 0109 0110 class KMimeTypeFactory::MimeTypeEntryPrivate : public KSycocaEntryPrivate 0111 { 0112 public: 0113 K_SYCOCATYPE(KST_KMimeTypeEntry, KSycocaEntryPrivate) 0114 MimeTypeEntryPrivate(const QString &file, const QString &name) 0115 : KSycocaEntryPrivate(file) 0116 , m_name(name) 0117 , m_serviceOffersOffset(-1) 0118 { 0119 } 0120 MimeTypeEntryPrivate(QDataStream &s, int offset) 0121 : KSycocaEntryPrivate(s, offset) 0122 , m_serviceOffersOffset(-1) 0123 { 0124 s >> m_name >> m_serviceOffersOffset; 0125 } 0126 QString name() const override 0127 { 0128 return m_name; 0129 } 0130 void save(QDataStream &s) override; 0131 0132 QString m_name; 0133 int m_serviceOffersOffset; 0134 }; 0135 0136 void KMimeTypeFactory::MimeTypeEntryPrivate::save(QDataStream &s) 0137 { 0138 KSycocaEntryPrivate::save(s); 0139 s << m_name << m_serviceOffersOffset; 0140 } 0141 0142 //// 0143 0144 KMimeTypeFactory::MimeTypeEntry::MimeTypeEntry(const QString &file, const QString &name) 0145 : KSycocaEntry(*new MimeTypeEntryPrivate(file, name.toLower())) 0146 { 0147 } 0148 0149 KMimeTypeFactory::MimeTypeEntry::MimeTypeEntry(QDataStream &s, int offset) 0150 : KSycocaEntry(*new MimeTypeEntryPrivate(s, offset)) 0151 { 0152 } 0153 0154 KMimeTypeFactory::MimeTypeEntry::~MimeTypeEntry() 0155 { 0156 } 0157 0158 int KMimeTypeFactory::MimeTypeEntry::serviceOffersOffset() const 0159 { 0160 Q_D(const MimeTypeEntry); 0161 return d->m_serviceOffersOffset; 0162 } 0163 0164 void KMimeTypeFactory::MimeTypeEntry::setServiceOffersOffset(int off) 0165 { 0166 Q_D(MimeTypeEntry); 0167 d->m_serviceOffersOffset = off; 0168 }