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