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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMIMEPROVIDER_P_H
#define QMIMEPROVIDER_P_H
#include <QtCore/qdatetime.h>
#include "qmimedatabase_p.h"
#include <QtCore/qset.h>
QT_BEGIN_NAMESPACE
class QMimeMagicRuleMatcher;
class QMimeProviderBase
{
public:
QMimeProviderBase(QMimeDatabasePrivate *db);
virtual ~QMimeProviderBase() {}
virtual bool isValid() = 0;
virtual QMimeType mimeTypeForName(const QString &name) = 0;
virtual QStringList findByFileName(const QString &fileName, QString *foundSuffix) = 0;
virtual QStringList parents(const QString &mime) = 0;
virtual QString resolveAlias(const QString &name) = 0;
virtual QMimeType findByMagic(const QByteArray &data, int *accuracyPtr) = 0;
virtual QList<QMimeType> allMimeTypes() = 0;
virtual void loadMimeTypePrivate(QMimeTypePrivate &) {}
virtual void loadIcon(QMimeTypePrivate &) {}
virtual void loadGenericIcon(QMimeTypePrivate &) {}
QMimeDatabasePrivate *m_db;
protected:
bool shouldCheck();
QDateTime m_lastCheck;
};
/*
Parses the files 'mime.cache' and 'types' on demand
*/
class QMimeBinaryProvider : public QMimeProviderBase
{
public:
QMimeBinaryProvider(QMimeDatabasePrivate *db);
virtual ~QMimeBinaryProvider();
virtual bool isValid();
virtual QMimeType mimeTypeForName(const QString &name);
virtual QStringList findByFileName(const QString &fileName, QString *foundSuffix);
virtual QStringList parents(const QString &mime);
virtual QString resolveAlias(const QString &name);
virtual QMimeType findByMagic(const QByteArray &data, int *accuracyPtr);
virtual QList<QMimeType> allMimeTypes();
virtual void loadMimeTypePrivate(QMimeTypePrivate &);
virtual void loadIcon(QMimeTypePrivate &);
virtual void loadGenericIcon(QMimeTypePrivate &);
private:
struct CacheFile;
void matchGlobList(QMimeGlobMatchResult &result, CacheFile *cacheFile, int offset, const QString &fileName);
bool matchSuffixTree(QMimeGlobMatchResult &result, CacheFile *cacheFile, int numEntries, int firstOffset, const QString &fileName, int charPos, bool caseSensitiveCheck);
bool matchMagicRule(CacheFile *cacheFile, int numMatchlets, int firstOffset, const QByteArray &data);
QString iconForMime(CacheFile *cacheFile, int posListOffset, const QByteArray &inputMime);
void loadMimeTypeList();
void checkCache();
class CacheFileList : public QList<CacheFile *>
{
public:
CacheFile *findCacheFile(const QString &fileName) const;
bool checkCacheChanged();
};
CacheFileList m_cacheFiles;
QStringList m_cacheFileNames;
QSet<QString> m_mimetypeNames;
bool m_mimetypeListLoaded;
};
/*
Parses the raw XML files (slower)
*/
class QMimeXMLProvider : public QMimeProviderBase
{
public:
QMimeXMLProvider(QMimeDatabasePrivate *db);
virtual bool isValid();
virtual QMimeType mimeTypeForName(const QString &name);
virtual QStringList findByFileName(const QString &fileName, QString *foundSuffix);
virtual QStringList parents(const QString &mime);
virtual QString resolveAlias(const QString &name);
virtual QMimeType findByMagic(const QByteArray &data, int *accuracyPtr);
virtual QList<QMimeType> allMimeTypes();
bool load(const QString &fileName, QString *errorMessage);
// Called by the mimetype xml parser
void addMimeType(const QMimeType &mt);
void addGlobPattern(const QMimeGlobPattern &glob);
void addParent(const QString &child, const QString &parent);
void addAlias(const QString &alias, const QString &name);
void addMagicMatcher(const QMimeMagicRuleMatcher &matcher);
private:
void ensureLoaded();
void load(const QString &fileName);
bool m_loaded;
typedef QHash<QString, QMimeType> NameMimeTypeMap;
NameMimeTypeMap m_nameMimeTypeMap;
typedef QHash<QString, QString> AliasHash;
AliasHash m_aliases;
typedef QHash<QString, QStringList> ParentsHash;
ParentsHash m_parents;
QMimeAllGlobPatterns m_mimeTypeGlobs;
QList<QMimeMagicRuleMatcher> m_magicMatchers;
QStringList m_allFiles;
};
QT_END_NAMESPACE
#endif // QMIMEPROVIDER_P_H
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