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/*
* Copyright (C) 2016 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LOMIRI_SHELL_APPLICATION_MIRSURFACELISTINTERFACE_H
#define LOMIRI_SHELL_APPLICATION_MIRSURFACELISTINTERFACE_H
#include <QAbstractListModel>
namespace lomiri {
namespace shell {
namespace application {
class MirSurfaceInterface;
/**
* @brief Interface for a list model of MirSurfaces
*/
class MirSurfaceListInterface : public QAbstractListModel
{
Q_OBJECT
/**
* @brief Number of surfaces in this model
*
* This is the same as rowCount, added in order to keep compatibility with QML ListModels.
*/
Q_PROPERTY(int count READ count NOTIFY countChanged)
/**
* @brief The first (index 0) surface in this model
*
* Will always match the result of get(0). But being a property, it's more appropriate
* for use in qml bindinds (JS expression gets reevaluated when it changes)
*/
Q_PROPERTY(lomiri::shell::application::MirSurfaceInterface* first READ first NOTIFY firstChanged)
public:
/**
* @brief The Roles supported by the model
*
* SurfaceRole - A MirSurfaceInterface.
*/
enum Roles {
SurfaceRole = Qt::UserRole,
};
/// @cond
MirSurfaceListInterface(QObject *parent = 0) : QAbstractListModel(parent) {}
virtual ~MirSurfaceListInterface() {}
/// @endcond
/**
* @brief Returns the surface at the specified index
*
*/
Q_INVOKABLE virtual MirSurfaceInterface *get(int index) = 0;
/// @cond
// QAbstractItemModel methods
QHash<int, QByteArray> roleNames() const override {
QHash<int, QByteArray> roleNames;
roleNames.insert(SurfaceRole, "surface");
return roleNames;
}
int count() const { return rowCount(); }
MirSurfaceInterface *first() {
if (rowCount() > 0) {
return get(0);
} else {
return nullptr;
}
}
/// @endcond
Q_SIGNALS:
/// @cond
void countChanged(int count);
void firstChanged();
/// @endcond
};
} // namespace application
} // namespace shell
} // namespace lomiri
Q_DECLARE_METATYPE(lomiri::shell::application::MirSurfaceListInterface*)
#endif // LOMIRI_SHELL_APPLICATION_MIRSURFACELISTINTERFACE_H
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