/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
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** This file is part of the QtWebView module of the Qt Toolkit.
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** General Public License version 3 as published by the Free Software
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
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****************************************************************************/

#include "qwindowcontrolleritem_p.h"

#include <QtGui/QWindow>
#include <QtQuick/QQuickWindow>
#include <QtCore/QDebug>

QWindowControllerItem::QWindowControllerItem(QQuickItem *parent)
    : QQuickItem(parent)
    , m_controlledWindow(0)
{
    connect(this, SIGNAL(windowChanged(QQuickWindow*)), this, SLOT(onWindowChanged(QQuickWindow*)));
    connect(this, SIGNAL(visibleChanged()), this, SLOT(onVisibleChanged()));
}

QWindowControllerItem::~QWindowControllerItem()
{
    delete m_controlledWindow;
}

void QWindowControllerItem::setNativeWindow(WId windowId)
{
    Q_ASSERT(m_controlledWindow == 0);
    m_controlledWindow = QWindow::fromWinId(windowId);
    m_controlledWindow->setVisibility(QWindow::Windowed);
}

void QWindowControllerItem::componentComplete()
{
   QQuickItem::componentComplete();
}

void QWindowControllerItem::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    QQuickItem::geometryChanged(newGeometry, oldGeometry);
    if (!m_controlledWindow)
        return;

    if (newGeometry.isValid())
        m_controlledWindow->setGeometry(mapRectToScene(newGeometry).toRect());
    else
        qWarning() << __FUNCTION__ << "Invalid geometry: " << newGeometry;
}

void QWindowControllerItem::onWindowChanged(QQuickWindow* window)
{
    if (!m_controlledWindow)
        return;

    m_controlledWindow->setParent(window);
}

void QWindowControllerItem::onVisibleChanged()
{
    if (m_controlledWindow)
        m_controlledWindow->setVisible(isVisible());
}