File indexing completed on 2024-05-05 17:56:55

 /*
     SPDX-FileCopyrightText: 2000 Shie Erlich <krusader@users.sourceforge.net>
     SPDX-FileCopyrightText: 2000 Rafi Yanai <krusader@users.sourceforge.net>
     SPDX-FileCopyrightText: 2004-2022 Krusader Krew <https://krusader.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef DEFAULTFILESYSTEM_H
 #define DEFAULTFILESYSTEM_H
 
 #include "filesystem.h"
 
 #include <QFileSystemWatcher>
 
 #include <KCoreAddons/KDirWatch>
 
 /**
  * @brief Default filesystem implementation supporting all KIO protocols
  *
  * This filesystem implementation allows file operations and listing for all supported KIO protocols
  *  (local and remote/network).
  *
  * Refreshing local directories is optimized for performance.
  *
  * NOTE: For detecting local file changes a filesystem watcher is used. It cannot be used for
  * refreshing the view after own file operations are performed because the detection is to slow
  * (~500ms delay between operation finished and watcher emits signals).
  *
  */
 class DefaultFileSystem : public FileSystem
 {
     Q_OBJECT
 public:
     DefaultFileSystem();
 
     void copyFiles(const QList<QUrl> &urls,
                    const QUrl &destination,
                    KIO::CopyJob::CopyMode mode = KIO::CopyJob::Copy,
                    bool showProgressInfo = true,
                    JobMan::StartMode startMode = JobMan::Default) override;
     void dropFiles(const QUrl &destination, QDropEvent *event) override;
 
     void addFiles(const QList<QUrl> &fileUrls, KIO::CopyJob::CopyMode mode, const QString &dir = "") override;
     void mkDir(const QString &name) override;
     void rename(const QString &fileName, const QString &newName) override;
     /// Return URL for file name - even if file does not exist.
     QUrl getUrl(const QString &name) const override;
     bool canMoveToTrash(const QStringList &) const override
     {
         return isLocal();
     }
 
     QString mountPoint() const override
     {
         return _mountPoint;
     }
     bool hasAutoUpdate() const override
     {
         return !_watcher.isNull();
     }
     void updateFilesystemInfo() override;
 
 protected:
     bool refreshInternal(const QUrl &origin, bool onlyScan) override;
     /**
      * Get the file list from the .hidden file.
      *
      * @param dir the directory containing the .hidden file
      * @return a list containing all files that must be hidden or an empty set
      * if the file cannot be read.
      */
     QSet<QString> filesInDotHidden(const QString &dir);
 
 protected slots:
     /// Handle result after dir listing job is finished
     void slotListResult(KJob *job);
     /// Fill directory file list with new files from the dir lister
     void slotAddFiles(KIO::Job *job, const KIO::UDSEntryList &entries);
     /// URL redirection signal from dir lister
     void slotRedirection(KIO::Job *job, const QUrl &url);
     // React to filesystem changes nofified by watcher
     // NOTE: the path parameter can be the directory itself or files in this directory
     void slotWatcherCreated(const QString &path);
     void slotWatcherDirty(const QString &path);
     void slotWatcherDeleted(const QString &path);
 
 private:
     bool refreshLocal(const QUrl &directory, bool onlyScan); // NOTE: this is very fast
     FileItem *createLocalFileItem(const QString &name);
     /// Returns the current path with symbolic links resolved
     QString realPath();
     static QUrl resolveRelativePath(const QUrl &url);
 
     QPointer<KDirWatch> _watcher; // dir watcher used to detect changes in the current dir
     bool _listError; // for async operation, return list job result
     QString _mountPoint; // the mount point of the current dir
 };
 
 #endif