1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Copyright (C) 2015 Klaralvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author David Faure <david.faure@kdab.com> 5 ** Contact: https://www.qt.io/licensing/ 6 ** 7 ** This file is part of the QtCore module of the Qt Toolkit. 8 ** 9 ** $QT_BEGIN_LICENSE:LGPL$ 10 ** Commercial License Usage 11 ** Licensees holding valid commercial Qt licenses may use this file in 12 ** accordance with the commercial license agreement provided with the 13 ** Software or, alternatively, in accordance with the terms contained in 14 ** a written agreement between you and The Qt Company. For licensing terms 15 ** and conditions see https://www.qt.io/terms-conditions. For further 16 ** information use the contact form at https://www.qt.io/contact-us. 17 ** 18 ** GNU Lesser General Public License Usage 19 ** Alternatively, this file may be used under the terms of the GNU Lesser 20 ** General Public License version 3 as published by the Free Software 21 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 22 ** packaging of this file. Please review the following information to 23 ** ensure the GNU Lesser General Public License version 3 requirements 24 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 25 ** 26 ** GNU General Public License Usage 27 ** Alternatively, this file may be used under the terms of the GNU 28 ** General Public License version 2.0 or (at your option) the GNU General 29 ** Public license version 3 or any later version approved by the KDE Free 30 ** Qt Foundation. The licenses are as published by the Free Software 31 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 32 ** included in the packaging of this file. Please review the following 33 ** information to ensure the GNU General Public License requirements will 34 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 35 ** https://www.gnu.org/licenses/gpl-3.0.html. 36 ** 37 ** $QT_END_LICENSE$ 38 ** 39 ****************************************************************************/ 40 41 #ifndef QMIMEDATABASE_P_H 42 #define QMIMEDATABASE_P_H 43 44 // 45 // W A R N I N G 46 // ------------- 47 // 48 // This file is not part of the Qt API. It exists purely as an 49 // implementation detail. This header file may change from version to 50 // version without notice, or even be removed. 51 // 52 // We mean it. 53 // 54 55 #include "qmimetype.h" 56 57 QT_REQUIRE_CONFIG(mimetype); 58 59 #include "qmimetype_p.h" 60 #include "qmimeglobpattern_p.h" 61 62 #include <QtCore/qelapsedtimer.h> 63 #include <QtCore/qmutex.h> 64 #include <QtCore/qvector.h> 65 66 #include <memory> 67 68 QT_BEGIN_NAMESPACE 69 70 class QIODevice; 71 class QMimeDatabase; 72 class QMimeProviderBase; 73 74 class QMimeDatabasePrivate 75 { 76 public: 77 Q_DISABLE_COPY_MOVE(QMimeDatabasePrivate) 78 79 QMimeDatabasePrivate(); 80 ~QMimeDatabasePrivate(); 81 82 static QMimeDatabasePrivate *instance(); 83 defaultMimeType()84 inline QString defaultMimeType() const { return m_defaultMimeType; } 85 86 bool inherits(const QString &mime, const QString &parent); 87 88 QList<QMimeType> allMimeTypes(); 89 90 QString resolveAlias(const QString &nameOrAlias); 91 QStringList parents(const QString &mimeName); 92 QMimeType mimeTypeForName(const QString &nameOrAlias); 93 QMimeType mimeTypeForFileNameAndData(const QString &fileName, QIODevice *device, int *priorityPtr); 94 QMimeType findByData(const QByteArray &data, int *priorityPtr); 95 QStringList mimeTypeForFileName(const QString &fileName); 96 QMimeGlobMatchResult findByFileName(const QString &fileName); 97 98 // API for QMimeType. Takes care of locking the mutex. 99 void loadMimeTypePrivate(QMimeTypePrivate &mimePrivate); 100 void loadGenericIcon(QMimeTypePrivate &mimePrivate); 101 void loadIcon(QMimeTypePrivate &mimePrivate); 102 QStringList mimeParents(const QString &mimeName); 103 QStringList listAliases(const QString &mimeName); 104 bool mimeInherits(const QString &mime, const QString &parent); 105 106 private: 107 using Providers = std::vector<std::unique_ptr<QMimeProviderBase>>; 108 const Providers &providers(); 109 bool shouldCheck(); 110 void loadProviders(); 111 112 mutable Providers m_providers; 113 QElapsedTimer m_lastCheck; 114 115 public: 116 const QString m_defaultMimeType; 117 QMutex mutex; 118 }; 119 120 QT_END_NAMESPACE 121 122 #endif // QMIMEDATABASE_P_H 123