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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFILEINFOGATHERER_H
#define QFILEINFOGATHERER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qthread.h>
#include <qmutex.h>
#include <qwaitcondition.h>
#include <qfilesystemwatcher.h>
#include <qfileiconprovider.h>
#include <qpair.h>
#include <qstack.h>
#include <qdatetime.h>
#include <qdir.h>
#include <qelapsedtimer.h>
#include <private/qfilesystemengine_p.h>
QT_BEGIN_NAMESPACE
class QExtendedInformation {
public:
enum Type { Dir, File, System };
QExtendedInformation() {}
QExtendedInformation(const QFileInfo &info) : mFileInfo(info) {}
inline bool isDir() { return type() == Dir; }
inline bool isFile() { return type() == File; }
inline bool isSystem() { return type() == System; }
bool operator ==(const QExtendedInformation &fileInfo) const {
return mFileInfo == fileInfo.mFileInfo
&& displayType == fileInfo.displayType
&& permissions() == fileInfo.permissions();
}
#ifndef QT_NO_FSFILEENGINE
bool isCaseSensitive() const {
return QFileSystemEngine::isCaseSensitive();
}
#endif
QFile::Permissions permissions() const {
return mFileInfo.permissions();
}
Type type() const {
if (mFileInfo.isDir()) {
return QExtendedInformation::Dir;
}
if (mFileInfo.isFile()) {
return QExtendedInformation::File;
}
if (!mFileInfo.exists() && mFileInfo.isSymLink()) {
return QExtendedInformation::System;
}
return QExtendedInformation::System;
}
bool isSymLink(bool ignoreNtfsSymLinks = false) const
{
if (ignoreNtfsSymLinks) {
#ifdef Q_OS_WIN
return !mFileInfo.suffix().compare(QLatin1String("lnk"), Qt::CaseInsensitive);
#endif
}
return mFileInfo.isSymLink();
}
bool isHidden() const {
return mFileInfo.isHidden();
}
QFileInfo fileInfo() const {
return mFileInfo;
}
QDateTime lastModified() const {
return mFileInfo.lastModified();
}
qint64 size() const {
qint64 size = -1;
if (type() == QExtendedInformation::Dir)
size = 0;
if (type() == QExtendedInformation::File)
size = mFileInfo.size();
if (!mFileInfo.exists() && !mFileInfo.isSymLink())
size = -1;
return size;
}
QString displayType;
QIcon icon;
private :
QFileInfo mFileInfo;
};
class QFileIconProvider;
#ifndef QT_NO_FILESYSTEMMODEL
class Q_AUTOTEST_EXPORT QFileInfoGatherer : public QThread
{
Q_OBJECT
Q_SIGNALS:
void updates(const QString &directory, const QVector<QPair<QString, QFileInfo> > &updates);
void newListOfFiles(const QString &directory, const QStringList &listOfFiles) const;
void nameResolved(const QString &fileName, const QString &resolvedName) const;
void directoryLoaded(const QString &path);
public:
explicit QFileInfoGatherer(QObject *parent = 0);
~QFileInfoGatherer();
// only callable from this->thread():
void clear();
void removePath(const QString &path);
QExtendedInformation getInfo(const QFileInfo &info) const;
QFileIconProvider *iconProvider() const;
bool resolveSymlinks() const;
public Q_SLOTS:
void list(const QString &directoryPath);
void fetchExtendedInformation(const QString &path, const QStringList &files);
void updateFile(const QString &path);
void setResolveSymlinks(bool enable);
void setIconProvider(QFileIconProvider *provider);
private:
void run() Q_DECL_OVERRIDE;
// called by run():
void getFileInfos(const QString &path, const QStringList &files);
void fetch(const QFileInfo &info, QElapsedTimer &base, bool &firstTime, QVector<QPair<QString, QFileInfo> > &updatedFiles, const QString &path);
private:
mutable QMutex mutex;
// begin protected by mutex
QWaitCondition condition;
QStack<QString> path;
QStack<QStringList> files;
// end protected by mutex
QAtomicInt abort;
#ifndef QT_NO_FILESYSTEMWATCHER
QFileSystemWatcher *watcher;
#endif
#ifdef Q_OS_WIN
bool m_resolveSymlinks; // not accessed by run()
#endif
QFileIconProvider *m_iconProvider; // not accessed by run()
QFileIconProvider defaultProvider;
};
#endif // QT_NO_FILESYSTEMMODEL
QT_END_NAMESPACE
#endif // QFILEINFOGATHERER_H
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