/****************************************************************************
**
** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (developer.feedback@nokia.com)
**
** This file is part of the HbCore module of the UI Extensions for Mobile.
**
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at developer.feedback@nokia.com.
**
****************************************************************************/
#ifndef HBPLUGINNAMECACHE_P_H
#define HBPLUGINNAMECACHE_P_H
#include <QObject>
#include <QHash>
#include <QString>
#include <QMutex>
#include <QStringList>
#include <QFileSystemWatcher>
#include <QPluginLoader>
#include <hbglobal.h>
class HbPluginNameCacheThread;
class HbLockedPluginLoader;
class HB_CORE_PRIVATE_EXPORT HbPluginNameCache : public QObject
{
Q_OBJECT
friend class HbPluginNameCacheThread;
friend class HbLockedPluginLoader;
public:
typedef QStringList (*GetPluginKeys)(QObject *pluginInstance);
typedef QString (*PluginFileNameFilter)();
explicit HbPluginNameCache(GetPluginKeys getPluginKeys,
PluginFileNameFilter pluginFileNameFilter = 0, QObject *parent = 0);
~HbPluginNameCache();
void addWatchPath(const QString &path);
void removeWatchPath(const QString &path);
void scanDirectory(const QString &path);
QString find(const QString &key);
static QString directoryPath(const QString &path);
void print();
private:
void insert(const QStringList &keys, const QString &filePath);
void remove(const QString &key);
void removePath(const QString &filePath);
static QString pluginFileNameFilter();
private slots:
void directoryChanged(const QString &path);
private: // data
Q_DISABLE_COPY(HbPluginNameCache)
QHash<QString, QString> mCache;
HbPluginNameCacheThread *mThread;
QFileSystemWatcher mWatcher;
};
class HbLockedPluginLoader
{
public:
HbLockedPluginLoader(HbPluginNameCache &nameCache, const QString &fileName, QObject *parent = 0);
HbLockedPluginLoader(QMutex &mutex, const QString &fileName, QObject *parent = 0);
~HbLockedPluginLoader();
QObject *instance();
bool load();
bool unload();
QString fileName() const {return mLoader->fileName();}
private:
QMutex &mMutex;
QPluginLoader *mLoader;
};
#endif // HBPLUGINNAMECACHE_P_H