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| ****************************************************************************/ |
| |
| #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 <QtWidgets/private/qtwidgetsglobal_p.h> |
| |
| #include <qthread.h> |
| #include <qmutex.h> |
| #include <qwaitcondition.h> |
| #if QT_CONFIG(filesystemwatcher) |
| #include <qfilesystemwatcher.h> |
| #endif |
| #include <qfileiconprovider.h> |
| #include <qpair.h> |
| #include <qstack.h> |
| #include <qdatetime.h> |
| #include <qdir.h> |
| #include <qelapsedtimer.h> |
| |
| #include <private/qfilesystemengine_p.h> |
| |
| QT_REQUIRE_CONFIG(filesystemmodel); |
| |
| 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() |
| && lastModified() == fileInfo.lastModified(); |
| } |
| |
| #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; |
| |
| 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 = nullptr); |
| ~QFileInfoGatherer(); |
| |
| QStringList watchedFiles() const; |
| QStringList watchedDirectories() const; |
| void watchPaths(const QStringList &paths); |
| void unwatchPaths(const QStringList &paths); |
| |
| bool isWatching() const; |
| void setWatching(bool v); |
| |
| // 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 Q_SLOTS: |
| void driveAdded(); |
| void driveRemoved(); |
| |
| private: |
| void run() 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: |
| void createWatcher(); |
| |
| mutable QMutex mutex; |
| // begin protected by mutex |
| QWaitCondition condition; |
| QStack<QString> path; |
| QStack<QStringList> files; |
| // end protected by mutex |
| QAtomicInt abort; |
| |
| #if QT_CONFIG(filesystemwatcher) |
| QFileSystemWatcher *m_watcher = nullptr; |
| #endif |
| QFileIconProvider *m_iconProvider; // not accessed by run() |
| QFileIconProvider defaultProvider; |
| #ifdef Q_OS_WIN |
| bool m_resolveSymlinks = true; // not accessed by run() |
| #endif |
| #if QT_CONFIG(filesystemwatcher) |
| bool m_watching = true; |
| #endif |
| }; |
| |
| QT_END_NAMESPACE |
| #endif // QFILEINFOGATHERER_H |