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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef PLUGINPATH_H
#define PLUGINPATH_H
#include "pluginmanager.h"
#include <QObject>
#include <QWeakPointer>
#include <QList>
#include <QDir>
#include <QStandardItem>
QT_BEGIN_NAMESPACE
class QString;
class QAbstractItemModel;
QT_END_NAMESPACE
namespace QmlDesigner {
class IPlugin;
// Dumb plugin data structure. Note that whereas QObjects can
// casted to an interface, QPointer does not work with the
// interface class, so, we need a separate QPointer as a guard
// to detect the deletion of a plugin instance which can happen
// in theory.
struct PluginData {
PluginData(const QString &p = QString());
QString path;
bool failed;
QString errorMessage;
QWeakPointer<QObject> instanceGuard;
IPlugin *instance;
};
// PluginPath: Manages a plugin directory. It does nothing
// on construction following the "as lazy as possible" principle.
// In the "loaded" stage, it scans the directories and creates
// a list of PluginData for the libraries found.
// getInstances() will return the fully initialized list of
// IPlugins.
class PluginPath {
public:
explicit PluginPath(const QDir &path);
void getInstances(PluginManager::IPluginList *list);
QDir path() const { return m_path; }
// Convenience to populate a "About Plugin" dialog with
// plugins from that path. Forces initialization.
QStandardItem *createModelItem();
private:
typedef QList<PluginData> PluginDataList;
static QStringList libraryFilePaths(const QDir &dir);
void clear();
void ensureLoaded();
QDir m_path;
bool m_loaded;
PluginDataList m_plugins;
};
} // namespace QmlDesigner
#endif // PLUGINPATH_H
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