/**

 * 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 "RenderFrame.h"

#include "RenderFrameSet.h"

#include "FrameView.h"

#include "HTMLFrameSetElement.h"

#include "HTMLNames.h"

#if PLATFORM(SYMBIAN)

#include "Document.h"

#include "Frame.h"

#include "FrameView.h"

#include "ScrollTypes.h"

#endif

namespace WebCore {

using namespace HTMLNames;

RenderFrame::RenderFrame(HTMLFrameElement* frame)

    : RenderPart(frame)

{

    setInline(false);

}

FrameEdgeInfo RenderFrame::edgeInfo() const

{

    return FrameEdgeInfo(element()->noResize(), element()->hasFrameBorder());

}

void RenderFrame::viewCleared()

{

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

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

        int marginw = element()->getMarginWidth();

        int marginh = element()->getMarginHeight();

        if (marginw != -1)

            view->setMarginWidth(marginw);

        if (marginh != -1)

            view->setMarginHeight(marginh);

    }

}

void RenderFrame::layoutWithFlattening(bool flexibleWidth, bool flexibleHeight)

{

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

    RenderFrame* childRoot = (RenderFrame*)(childFrameView ? childFrameView->frame()->renderer() : 0);

    // don't expand frames set to have zero width or height

    if (!m_width || !m_height || !childRoot) {

        updateWidgetPosition();

        if (childFrameView)

            while (childFrameView->layoutPending())

                childFrameView->layout();

        setNeedsLayout(false);

        return;

    }

    // expand the frame by setting frame height = content height

    // need to update to calculate min/max correctly

    updateWidgetPosition();

    if (childRoot->prefWidthsDirty())

        childRoot->calcPrefWidths();

    bool scrolling = element()->scrollingMode() != ScrollbarAlwaysOff;

    // if scrollbars are off assume it is ok for this frame to become really narrow

    if (scrolling || flexibleWidth || childFrameView->frame()->isFrameSet())

         m_width = max(m_width, childRoot->minPrefWidth());

    // update again to pass the width to the child frame

    updateWidgetPosition();

    do

        childFrameView->layout();

    while (childFrameView->layoutPending() || childRoot->needsLayout());

    if (scrolling || flexibleHeight || childFrameView->frame()->isFrameSet())

        m_height = max(m_height, childFrameView->contentsHeight());

    if (scrolling || flexibleWidth || childFrameView->frame()->isFrameSet())

        m_width = max(m_width, childFrameView->contentsWidth());

    updateWidgetPosition();

    ASSERT(!childFrameView->layoutPending());

    ASSERT(!childRoot->needsLayout());

    ASSERT(!childRoot->firstChild() || !childRoot->firstChild()->firstChild() || !childRoot->firstChild()->firstChild()->needsLayout());

    setNeedsLayout(false);

}

} // namespace WebCore