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#ifndef MIRALL_FOLDERWATCHER_H
#define MIRALL_FOLDERWATCHER_H
#include <QObject>
#include <QString>
#include <QStringList>
#include <QTime>
class QTimer;
class INotify;
namespace Mirall {
/**
* 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();
/**
* All watched folders and subfolders
*/
QStringList folders() const;
/**
* Root path being monitored
*/
QString root() const;
/**
* If true, folderChanged() events are sent
* at least as often as eventInterval() seconds.
*/
bool eventsEnabled() const;
/**
* Enabled or disables folderChanged() events.
* If disabled, events are accumulated and emptied
* the next time a folderChanged() event happens.
*/
void setEventsEnabled(bool enabled);
/**
* 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);
signals:
/**
* Emitted when one of the paths is changed
*/
void folderChanged(const QStringList &pathList);
protected:
void setProcessTimer();
protected slots:
void slotINotifyEvent(int mask, int cookie, const QString &path);
void slotAddFolderRecursive(const QString &path);
// called when the manually process timer triggers
void slotProcessTimerTimeout();
void slotProcessPaths();
private:
bool _eventsEnabled;
int _eventInterval;
INotify *_inotify;
QString _root;
// paths pending to notified
QStringList _pendingPaths;
QTimer *_processTimer;
QTime _lastEventTime;
// to cancel events that belong to the same action
int _lastMask;
QString _lastPath;
};
}
#endif
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