/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qquickapplication_p.h"

#include <private/qobject_p.h>
#include <QtGui/QGuiApplication>
#include <QtCore/QDebug>

QT_BEGIN_NAMESPACE

class QQuickApplicationPrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QQuickApplication)
public:
    QQuickApplicationPrivate()
        : isActive(QGuiApplication::focusWindow() != 0),
          direction(QGuiApplication::layoutDirection())
    {
    }

private:
    bool isActive;
    Qt::LayoutDirection direction;
};

/*
    This object and its properties are documented as part of the Qt object,
    in qqmlengine.cpp
*/

QQuickApplication::QQuickApplication(QObject *parent)
    : QObject(*new QQuickApplicationPrivate(), parent)
{
    if (qApp) {
        qApp->installEventFilter(this);
    }
}

QQuickApplication::~QQuickApplication()
{
}

bool QQuickApplication::active() const
{
    Q_D(const QQuickApplication);
    return d->isActive;
}

Qt::LayoutDirection QQuickApplication::layoutDirection() const
{
    Q_D(const QQuickApplication);
    return d->direction;
}

bool QQuickApplication::eventFilter(QObject *, QEvent *event)
{
    Q_D(QQuickApplication);
    if ((event->type() == QEvent::ApplicationActivate) ||
        (event->type() == QEvent::ApplicationDeactivate)) {
        bool wasActive = d->isActive;
        d->isActive = (event->type() == QEvent::ApplicationActivate);
        if (d->isActive != wasActive) {
            emit activeChanged();
        }
    } else if (event->type() == QEvent::LayoutDirectionChange) {
        Qt::LayoutDirection newDirection = QGuiApplication::layoutDirection();
        if (d->direction != newDirection) {
            d->direction = newDirection;
            emit layoutDirectionChanged();
        }
    }
    return false;
}

QT_END_NAMESPACE