nextcloud-desktop/src/mirall/folderwatcher.h

138 lines
3.3 KiB
C++

/*
* Copyright (C) by Duncan Mac-Vicar P. <duncan@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef MIRALL_FOLDERWATCHER_H
#define MIRALL_FOLDERWATCHER_H
#include "config.h"
#include "mirall/folder.h"
#include <QList>
#include <QObject>
#include <QString>
#include <QStringList>
#include <QTime>
#include <QHash>
class QTimer;
namespace Mirall {
class FolderWatcherPrivate;
/**
* Watches a folder and sub folders for changes
*
* Will notify changed files relative to the root()
* directory.
*
* If too many changes happen in a short time interval,
* it will accumulate and be fired together later.
*/
class FolderWatcher : public QObject
{
Q_OBJECT
public:
/**
* @param root Path of the root of the folder
*/
FolderWatcher(const QString &root, QObject *parent = 0L);
~FolderWatcher();
/**
* Root path being monitored
*/
QString root() const;
/**
* Set a file name to load a file with ignore patterns.
*
* Valid entries do not start with a hash sign (#)
* and may contain wildcards
*/
void addIgnoreListFile( const QString& );
/**
* If true, folderChanged() events are sent
* at least as often as eventInterval() seconds.
*/
bool eventsEnabled() const;
/**
* Clear all pending events
*/
void clearPendingEvents();
/**
* The minimum amounts of seconds that will separate
* folderChanged() intervals
*/
int eventInterval() const;
/**
* Sets minimum amounts of seconds that will separate
* folderChanged() intervals
*/
void setEventInterval(int seconds);
QStringList ignores() const;
public slots:
/**
* Enabled or disables folderChanged() events.
* If disabled, events are accumulated and emptied
* the next time a folderChanged() event happens.
*/
void setEventsEnabled(bool enabled=true);
/**
* @brief setEventsEnabledDelayed - start event logging after a while
* @param delay - delay time in milliseconds
* @param enabled - enable the events.
*/
void setEventsEnabledDelayed( int );
signals:
/** Emitted when one of the paths is changed */
void folderChanged(const QStringList &pathList);
/** Emitted if an error occurs */
void error(const QString& error);
protected:
void setProcessTimer();
protected slots:
// called when the manually process timer triggers
void slotProcessTimerTimeout();
void changeDetected(const QString &f);
protected:
QHash<QString, int> _pendingPathes;
private:
bool _eventsEnabled;
int _eventInterval;
FolderWatcherPrivate *_d;
QString _root;
// paths pending to notified
// QStringList _pendingPaths;
QTimer *_processTimer;
QStringList _ignores;
friend class FolderWatcherPrivate;
};
}
#endif