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/*
* SPDX-FileCopyrightText: 2011 Peter Penz <[email protected]>
* SPDX-FileCopyrightText: 2013 Frank Reininghaus <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KDIRECTORYCONTENTSCOUNTER_H
#define KDIRECTORYCONTENTSCOUNTER_H
#include "kdirectorycontentscounterworker.h"
#include <QSet>
class KDirWatch;
class KFileItemModel;
class QString;
class KDirectoryContentsCounter : public QObject
{
Q_OBJECT
public:
enum PathCountPriority { Normal, High };
explicit KDirectoryContentsCounter(KFileItemModel *model, QObject *parent = nullptr);
~KDirectoryContentsCounter() override;
/**
* Requests the number of items inside the directory \a path. The actual
* counting is done asynchronously, and the result is announced via the
* signal \a result.
*
* The directory \a path is watched for changes, and the signal is emitted
* again if a change occurs.
*
* Uses a cache internally to speed up first result,
* but emit again result when the cache was updated
*/
void scanDirectory(const QString &path, PathCountPriority priority);
/**
* Stops the work until new input is passed
*/
void stopWorker();
Q_SIGNALS:
/**
* Signals that the directory \a path contains \a count items of size \a
* Size calculation depends on parameter ContentDisplaySettings::recursiveDirectorySizeLimit
*/
void result(const QString &path, int count, long long size);
void requestDirectoryContentsCount(const QString &path, KDirectoryContentsCounterWorker::Options options, int maxRecursiveLevel);
private Q_SLOTS:
void slotResult(const QString &path, int count, long long size);
void slotDirWatchDirty(const QString &path);
void slotItemsRemoved();
void slotDirectoryRefreshing();
void scheduleNext();
private:
void enqueuePathScanning(const QString &path, bool alreadyInCache, PathCountPriority priority);
KFileItemModel *m_model;
// Used as FIFO queues.
std::list<QString> m_priorityQueue;
std::list<QString> m_queue;
bool m_workerIsBusy;
KDirWatch *m_dirWatcher;
QSet<QString> m_watchedDirs; // Required as sadly KDirWatch does not offer a getter method
// to get all watched directories.
QString m_currentPath;
};
#endif
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