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    41 

    42 #ifndef QFILEINFOGATHERER_H

    43 #define QFILEINFOGATHERER_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <qthread.h>

    57 #include <qmutex.h>

    58 #include <qwaitcondition.h>

    59 #include <qfilesystemwatcher.h>

    60 #include <qfileiconprovider.h>

    61 #include <qfsfileengine.h>

    62 #include <qpair.h>

    63 #include <qdatetime.h>

    64 #include <qstack.h>

    65 #include <qdir.h>

    66 

    67 QT_BEGIN_NAMESPACE

    68 

    69 class QExtendedInformation {

    70 public:

    71     enum Type { Dir, File, System };

    72 

    73     QExtendedInformation() {}

    74     QExtendedInformation(const QFileInfo &info) : mFileInfo(info) {}

    75 

    76     inline bool isDir() { return type() == Dir; }

    77     inline bool isFile() { return type() == File; }

    78     inline bool isSystem() { return type() == System; }

    79 

    80     bool operator ==(const QExtendedInformation &fileInfo) const {

    81        return mFileInfo == fileInfo.mFileInfo

    82        && displayType == fileInfo.displayType

    83        && permissions() == fileInfo.permissions();

    84     }

    85 

    86     bool isCaseSensitive() const {

    87         QFSFileEngine fe(mFileInfo.absoluteFilePath());

    88         return fe.caseSensitive();

    89     }

    90     QFile::Permissions permissions() const {

    91         return mPermissions;

    92     }

    93 

    94     void setPermissions (QFile::Permissions permissions) {

    95         mPermissions = permissions;

    96     }

    97 

    98     Type type() const {

    99         if (mFileInfo.isDir()) {

   100             return QExtendedInformation::Dir;

   101         }

   102         if (mFileInfo.isFile()) {

   103             return QExtendedInformation::File;

   104         }

   105         if (!mFileInfo.exists() && mFileInfo.isSymLink()) {

   106             return QExtendedInformation::System;

   107         }

   108         return QExtendedInformation::System;

   109     }

   110 

   111     bool isSymLink() const {

   112         return mFileInfo.isSymLink();

   113     }

   114 

   115     bool isHidden() const {

   116         return mFileInfo.isHidden();

   117     }

   118 

   119     QFileInfo fileInfo() const {

   120         return mFileInfo;

   121     }

   122 

   123     QDateTime lastModified() const {

   124         return mFileInfo.lastModified();

   125     }

   126 

   127     qint64 size() const {

   128         qint64 size = -1;

   129         if (type() == QExtendedInformation::Dir)

   130             size = 0;

   131         if (type() == QExtendedInformation::File)

   132             size = mFileInfo.size();

   133         if (!mFileInfo.exists() && !mFileInfo.isSymLink())

   134             size = -1;

   135         return size;

   136     }

   137 

   138     QString displayType;

   139     QIcon icon;

   140 

   141 private :

   142     QFileInfo mFileInfo;

   143     QFile::Permissions mPermissions;

   144 };

   145 

   146 class QFileIconProvider;

   147 

   148 #ifndef QT_NO_FILESYSTEMMODEL

   149 

   150 class Q_AUTOTEST_EXPORT QFileInfoGatherer : public QThread

   151 {

   152 Q_OBJECT

   153 

   154 Q_SIGNALS:

   155     void updates(const QString &directory, const QList<QPair<QString, QFileInfo> > &updates);

   156     void newListOfFiles(const QString &directory, const QStringList &listOfFiles) const;

   157     void nameResolved(const QString &fileName, const QString &resolvedName) const;

   158 

   159 public:

   160     QFileInfoGatherer(QObject *parent = 0);

   161     ~QFileInfoGatherer();

   162 

   163     void clear();

   164     void removePath(const QString &path);

   165     QExtendedInformation getInfo(const QFileInfo &info) const;

   166 

   167 public Q_SLOTS:

   168     void list(const QString &directoryPath);

   169     void fetchExtendedInformation(const QString &path, const QStringList &files);

   170     void updateFile(const QString &path);

   171     void setResolveSymlinks(bool enable);

   172     bool resolveSymlinks() const;

   173     void setIconProvider(QFileIconProvider *provider);

   174     QFileIconProvider *iconProvider() const;

   175 

   176 protected:

   177     void run();

   178     void getFileInfos(const QString &path, const QStringList &files);

   179 

   180 private:

   181     void fetch(const QFileInfo &info, QTime &base, bool &firstTime, QList<QPair<QString, QFileInfo> > &updatedFiles, const QString &path);

   182     QString translateDriveName(const QFileInfo &drive) const;

   183     QFile::Permissions translatePermissions(const QFileInfo &fileInfo) const;

   184 

   185     QMutex mutex;

   186     QWaitCondition condition;

   187     volatile bool abort;

   188 

   189     QStack<QString> path;

   190     QStack<QStringList> files;

   191 

   192 #ifndef QT_NO_FILESYSTEMWATCHER

   193     QFileSystemWatcher *watcher;

   194 #endif

   195     bool m_resolveSymlinks;

   196     QFileIconProvider *m_iconProvider;

   197     QFileIconProvider defaultProvider;

   198 #ifndef Q_OS_WIN

   199     uint userId;

   200     uint groupId;

   201 #endif

   202 public :

   203     //for testing purpose

   204     static bool fetchedRoot;

   205 };

   206 #endif // QT_NO_FILESYSTEMMODEL

   207 

   208 

   209 QT_END_NAMESPACE

   210 #endif // QFILEINFOGATHERER_H

   211