| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
| 3 | |
| 4 | #ifndef QMLPREVIEWFILESYSTEMWATCHER_H |
| 5 | #define QMLPREVIEWFILESYSTEMWATCHER_H |
| 6 | |
| 7 | #include <QtCore/qfilesystemwatcher.h> |
| 8 | #include <QtCore/qobject.h> |
| 9 | #include <QtCore/qset.h> |
| 10 | |
| 11 | class QmlPreviewFileSystemWatcher : public QObject |
| 12 | { |
| 13 | Q_OBJECT |
| 14 | |
| 15 | public: |
| 16 | explicit QmlPreviewFileSystemWatcher(QObject *parent = nullptr); |
| 17 | |
| 18 | void addFile(const QString &file); |
| 19 | void removeFile(const QString &file); |
| 20 | bool watchesFile(const QString &file) const; |
| 21 | |
| 22 | void addDirectory(const QString &file); |
| 23 | void removeDirectory(const QString &file); |
| 24 | bool watchesDirectory(const QString &file) const; |
| 25 | |
| 26 | Q_SIGNALS: |
| 27 | void fileChanged(const QString &path); |
| 28 | void directoryChanged(const QString &path); |
| 29 | |
| 30 | private: |
| 31 | using WatchEntrySet = QSet<QString>; |
| 32 | using WatchEntrySetIterator = WatchEntrySet::iterator; |
| 33 | |
| 34 | void onDirectoryChanged(const QString &path); |
| 35 | |
| 36 | WatchEntrySet m_files; |
| 37 | WatchEntrySet m_directories; |
| 38 | |
| 39 | // Directories watched either explicitly or implicitly through files contained in them. |
| 40 | QHash<QString, int> m_directoryCount; |
| 41 | |
| 42 | QFileSystemWatcher *m_watcher = nullptr; |
| 43 | }; |
| 44 | |
| 45 | #endif // QMLPREVIEWFILESYSTEMWATCHER_H |
| 46 |