Differential D25335 Diff 79759 src/kitemviews/private/kdirectorycontentscounter.h

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src/kitemviews/private/kdirectorycontentscounter.h

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20 20​
21#ifndef KDIRECTORYCONTENTSCOUNTER_H 21​#ifndef KDIRECTORYCONTENTSCOUNTER_H
22#define KDIRECTORYCONTENTSCOUNTER_H 22​#define KDIRECTORYCONTENTSCOUNTER_H
23 23​
24#include "kdirectorycontentscounterworker.h" 24​#include "kdirectorycontentscounterworker.h"
25 25​
26#include <QQueue> 26​#include <QQueue>
27#include <QSet> 27​#include <QSet>
28​#include <QHash>
28 29​
29class KDirWatch; 30​class KDirWatch;
30class KFileItemModel; 31​class KFileItemModel;
31class QString; 32​class QString;
32 33​
33class KDirectoryContentsCounter : public QObject 34​class KDirectoryContentsCounter : public QObject
34{ 35​{
35 Q_OBJECT 36​ Q_OBJECT
36 37​
37public: 38​public:
38 explicit KDirectoryContentsCounter(KFileItemModel* model, QObject* parent = nullptr); 39​ explicit KDirectoryContentsCounter(KFileItemModel* model, QObject* parent = nullptr);
39 ~KDirectoryContentsCounter() override; 40​ ~KDirectoryContentsCounter() override;
40 41​
41 /** 42​ /**
42 * Requests the number of items inside the directory \a path. The actual 43​ * Requests the number of items inside the directory \a path. The actual
43 * counting is done asynchronously, and the result is announced via the 44​ * counting is done asynchronously, and the result is announced via the
44 * signal \a result. 45​ * signal \a result.
45 * 46​ *
46 * The directory \a path is watched for changes, and the signal is emitted 47​ * The directory \a path is watched for changes, and the signal is emitted
47 * again if a change occurs. 48​ * again if a change occurs.
48 */ ​
49 void addDirectory(const QString& path); ​
50 ​
51 /** ​
52 * In contrast to \a addDirectory, this function counts the items inside ​
53 * the directory \a path synchronously and returns the result. ​
54 * 49​ *
55 * The directory is watched for changes, and the signal \a result is 50​ * Uses a cache internally to speed up first result,
56 * emitted if a change occurs. 51​ * but emit again result when the cache was updated
57 */ 52​ */
58 int countDirectoryContentsSynchronously(const QString& path); 53​ void scanDirectory(const QString& path);
59 54​
60signals: 55​signals:
61 /** 56​ /**
62 * Signals that the directory \a path contains \a count items. 57​ * Signals that the directory \a path contains \a count items of size \a
58​ * Size calculation depends on parameter DetailsModeSettings::recursiveDirectorySizeLimit
63 */ 59​ */
64 void result(const QString& path, int count); 60​ void result(const QString& path, int count, long size);
65 61​
66 void requestDirectoryContentsCount(const QString& path, KDirectoryContentsCounterWorker::Options options); 62​ void requestDirectoryContentsCount(const QString& path, KDirectoryContentsCounterWorker::Options options);
67 63​
68private slots: 64​private slots:
69 void slotResult(const QString& path, int count); 65​ void slotResult(const QString& path, int count, long size);
70 void slotDirWatchDirty(const QString& path); 66​ void slotDirWatchDirty(const QString& path);
71 void slotItemsRemoved(); 67​ void slotItemsRemoved();
72 68​
73private: 69​private:
74 void startWorker(const QString& path); 70​ void startWorker(const QString& path);
75 71​
76private: 72​private:
77 KFileItemModel* m_model; 73​ KFileItemModel* m_model;
78 74​
79 QQueue<QString> m_queue; 75​ QQueue<QString> m_queue;
80 76​
77​ /// cache of directory counting resul
78​ QHash<QString, QPair<int, long>> m_cache;
79​
81 static QThread* m_workerThread; 80​ static QThread* m_workerThread;
82 static int m_workersCount; ​
83 81​
84 KDirectoryContentsCounterWorker* m_worker; 82​ KDirectoryContentsCounterWorker* m_worker;
85 bool m_workerIsBusy; 83​ bool m_workerIsBusy;
86 84​
87 KDirWatch* m_dirWatcher; 85​ KDirWatch* m_dirWatcher;
88 QSet<QString> m_watchedDirs; // Required as sadly KDirWatch does not offer a getter method 86​ QSet<QString> m_watchedDirs; // Required as sadly KDirWatch does not offer a getter method
89 // to get all watched directories. 87​ // to get all watched directories.
90}; 88​};
91 89​
92#endif 90​#endif