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98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/*
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* Copyright (C) by Klaas Freitag <freitag@owncloud.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef MIRALL_FOLDERWATCHER_H
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#define MIRALL_FOLDERWATCHER_H
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#include "config.h"
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#include <QList>
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#include <QObject>
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#include <QString>
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#include <QStringList>
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#include <QTime>
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#include <QHash>
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#include <QScopedPointer>
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#include <QSet>
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class QTimer;
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namespace OCC {
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class FolderWatcherPrivate;
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class Folder;
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/**
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* @brief Monitors a directory recursively for changes
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*
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* Folder Watcher monitors a directory and its sub directories
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* for changes in the local file system. Changes are signalled
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* through the pathChanged() signal.
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*
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* Note that if new folders are created, this folderwatcher class
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* does not automatically add them to the list of monitored
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* dirs. That is the responsibility of the user of this class to
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* call addPath() with the new dir.
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*
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* @ingroup gui
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*/
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class FolderWatcher : public QObject
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{
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Q_OBJECT
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public:
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/**
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* @param root Path of the root of the folder
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*/
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FolderWatcher(const QString &root, Folder* folder = 0L);
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virtual ~FolderWatcher();
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/**
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* Not all backends are recursive by default.
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* Those need to be notified when a directory is added or removed while the watcher is disabled.
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* This is a no-op for backends that are recursive
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*/
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void addPath(const QString&);
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void removePath(const QString&);
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/* Check if the path is ignored. */
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bool pathIsIgnored( const QString& path );
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signals:
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/** Emitted when one of the watched directories or one
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* of the contained files is changed. */
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void pathChanged(const QString &path);
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/** Emitted if an error occurs */
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void error(const QString& error);
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protected slots:
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// called from the implementations to indicate a change in path
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void changeDetected( const QString& path);
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void changeDetected( const QStringList& paths);
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protected:
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QHash<QString, int> _pendingPathes;
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private:
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QScopedPointer<FolderWatcherPrivate> _d;
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QTime _timer;
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QSet<QString> _lastPaths;
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Folder* _folder;
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friend class FolderWatcherPrivate;
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};
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}
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#endif
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