/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
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**************************************************************************/

#ifndef WIDGETPLUGINMANAGER_H
#define WIDGETPLUGINMANAGER_H

#include <QtCore/QObject>
#include <QtCore/QList>

QT_BEGIN_NAMESPACE
class QString;
class QAbstractItemModel;
QT_END_NAMESPACE

namespace QmlDesigner {

class IWidgetPlugin;

namespace Internal {

class WidgetPluginManagerPrivate;

// PluginManager: Loads the plugin libraries on demand "as lazy as
// possible", that is, directories are scanned and
// instances are created only when  instances() is called.

class WidgetPluginManager
{
    Q_DISABLE_COPY(WidgetPluginManager)
public:
    typedef QList<IWidgetPlugin *> IWidgetPluginList;

    WidgetPluginManager();
    ~WidgetPluginManager();

    bool addPath(const QString &path);

    IWidgetPluginList instances();

    // Convenience to create a model for an "About Plugins"
    // dialog. Forces plugin initialization.
    QAbstractItemModel *createModel(QObject *parent = 0);

private:
    WidgetPluginManagerPrivate *m_d;
};

} // namespace Internal
} // namespace QmlDesigner
#endif // WIDGETPLUGINMANAGER_H
