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03aba012a0
I rewrote QFileSystemWatcher some time ago for it to be able to watch non-existing directories, did rewrite KDirWatch too to not use FAM and inotify making the created() and deleted() signals non-operational (with the plan to maybe implement them in QFileSystemWatcher but that will be hack-ish for directories with stat()-based implementation) Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
/* This file is part of the KDE libraries
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Copyright (C) 2019 Ivailo Monev <xakepa10@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef KDIRWATCH_H
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#define KDIRWATCH_H
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#include <QtCore/qobject.h>
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#include <QtCore/qstring.h>
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#include <kdecore_export.h>
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class KDirWatchPrivate;
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/**
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* @short Class for watching directory and file changes.
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*
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* The watched directories or files do not have to exist. When a watched
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* directory is changed, i.e. when files therein are created or deleted,
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* KDirWatch will emit the signal dirty(). Scanning begins immediately when a
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* dir or file watch is added.
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*
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* @see self()
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*/
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class KDECORE_EXPORT KDirWatch : public QObject
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{
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Q_OBJECT
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public:
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/**
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* Constructor.
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* @param parent the parent of the QObject (or 0 for parent-less KDirWatch)
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*/
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KDirWatch(QObject* parent = 0);
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/**
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* Destructor.
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*
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* Stops scanning and cleans up.
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*/
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~KDirWatch();
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/**
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* Adds a directory to be watched.
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* @param path the path to watch
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*/
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void addDir(const QString &path);
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/**
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* Adds a file to be watched.
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* @param file the file to watch
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*/
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void addFile(const QString &file);
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/**
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* Removes a directory from the list of scanned directories.
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* @param path the path of the dir to be removed from the list
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*/
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void removeDir(const QString &path);
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/**
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* Removes a file from the list of watched files.
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* @param file the file to be removed from the list
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*/
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void removeFile(const QString &file);
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/**
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* Check if a directory is being watched by this KDirWatch instance
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* @param path the directory to check
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* @return true if the directory is being watched
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*/
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bool contains(const QString &path) const;
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/**
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* The KDirWatch instance usually globally used in an application.
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* It is automatically deleted when the application exits.
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*
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* However, you can create an arbitrary number of KDirWatch instances
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* aside from this one - for those you have to take care of memory management.
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*
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* This function returns an instance of KDirWatch. If there is none, it
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* will be created.
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*
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* @return a KDirWatch instance
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*/
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static KDirWatch* self();
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public Q_SLOTS:
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/**
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* Emits dirty().
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* @param path the path of the file or directory
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*/
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void setDirty(const QString &path);
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Q_SIGNALS:
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/**
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* Emitted when a watched object is changed.
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*
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* For a directory this signal is emitted when files therein are created or
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* deleted. For a file this signal is emitted when its size or attributes
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* change.
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*
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* @param path the path of the file or directory
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*/
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void dirty(const QString &path);
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private:
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KDirWatchPrivate* d;
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};
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#endif // KDIRWATCH_H
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