/**

 * This file is part of the KDE project.

 *

 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

 *           (C) 2000 Simon Hausmann <hausmann@kde.org>

 *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)

 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#include "config.h"

#include "RenderPart.h"

#include "Document.h"

#include "Frame.h"

#include "FrameTree.h"

#include "FrameView.h"

#include "HTMLFrameOwnerElement.h"

#include "HTMLNames.h"

#include "Page.h"

#include "Settings.h"

namespace WebCore {

using namespace HTMLNames;

RenderPart::RenderPart(HTMLFrameOwnerElement* node)

    : RenderWidget(node)

{

    // init RenderObject attributes

    setInline(false);

}

RenderPart::~RenderPart()

{

    // Since deref ends up calling setWidget back on us, need to make sure

    // that widget is already 0 so it won't do any work.

    Widget* widget = m_widget;

    m_widget = 0;

    if (widget && widget->isFrameView())

        static_cast<FrameView*>(widget)->deref();

    else

        delete widget;

}

void RenderPart::setWidget(Widget* widget)

{

    if (widget != m_widget) {

        if (widget && widget->isFrameView())

            static_cast<FrameView*>(widget)->ref();

        RenderWidget::setWidget(widget);

        // make sure the scrollbars are set correctly for restore

        // ### find better fix

        viewCleared();

    }

}

void RenderPart::viewCleared()

{

}

void RenderPart::deleteWidget()

{

    if (m_widget && m_widget->isFrameView())

        static_cast<FrameView*>(m_widget)->deref();

    else

        delete m_widget;

}

// FIXME: This should not be necessary.  Remove this once WebKit knows to properly schedule

// layouts using WebCore when objects resize.

void RenderPart::updateWidgetPosition()

{

    if (!m_widget)

        return;

    int x, y, width, height;

    absolutePosition(x, y);

    x += borderLeft() + paddingLeft();

    y += borderTop() + paddingTop();

    width = m_width - borderLeft() - borderRight() - paddingLeft() - paddingRight();

    height = m_height - borderTop() - borderBottom() - paddingTop() - paddingBottom();

    IntRect newBounds(x,y,width,height);

    bool boundsChanged = newBounds != m_widget->frameGeometry();

    if (boundsChanged) {

        // The widget changed positions.  Update the frame geometry.

        RenderArena *arena = ref();

        element()->ref();

        m_widget->setFrameGeometry(newBounds);

        element()->deref();

        deref(arena);

    }

    // if the frame bounds got changed, or if view needs layout (possibly indicating

    // content size is wrong) we have to do a layout to set the right widget size

#if PLATFORM(SYMBIAN)

    if (m_widget && m_widget->isFrameView() && ((!((FrameView*)m_widget)->frame()->settings()->flatFrameSetLayoutEnabled()) || !((FrameView*)m_widget)->frame()->tree()->parent()->isFrameSet())) {

#else

    if (m_widget && m_widget->isFrameView()) {

#endif

        FrameView* frameView = static_cast<FrameView*>(m_widget);

        if (boundsChanged || frameView->needsLayout())

            frameView->layout();

    }

}

}