/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * 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 "StyleResolveForDocument.h"

#include "CSSFontSelector.h"
#include "Document.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLIFrameElement.h"
#include "LocaleToScriptMapping.h"
#include "NodeRenderStyle.h"
#include "RenderObject.h"
#include "RenderStyle.h"
#include "RenderView.h"
#include "Settings.h"
#include "StyleFontSizeFunctions.h"
#include "StyleResolver.h"
#include "WebKitFontFamilyNames.h"

namespace WebCore {

namespace Style {

PassOwnPtr<RenderStyle> resolveForDocument(const Document& document)
{
    ASSERT(document.hasLivingRenderTree());
    if (!document.hasLivingRenderTree())
    	return nullptr;

    RenderView& renderView = *document.renderView();

    OwnPtr<RenderStyle> documentStyle = RenderStyle::create();

    documentStyle->setDisplay(DisplayType::Block);
	documentStyle->setRTLOrdering(document.visuallyOrdered() ? VisualOrder : LogicalOrder);
	documentStyle->setZoom(!document.printing() ? renderView.frame().pageZoomFactor() : 1);
	documentStyle->setPageScaleTransform(renderView.frame().frameScaleFactor());
    FontDescription documentFontDescription = documentStyle->fontDescription();
    documentFontDescription.setLocale(document.contentLanguage());
    documentStyle->setFontDescription(documentFontDescription);

    // FIXME: This overrides any -webkit-user-modify inherited from the parent iframe.
    documentStyle->setUserModify(document.inDesignMode() ? READ_WRITE : READ_ONLY);

	const Pagination& pagination = renderView.frameView().pagination();
	if (pagination.mode != Pagination::Unpaginated) {
		documentStyle->setColumnStylesFromPaginationMode(pagination.mode);
		documentStyle->setColumnGap(GapLength(Length((int) pagination.gap, LengthType::Fixed)));
		if (renderView.multiColumnFlow())
			renderView.updateColumnProgressionFromStyle(*documentStyle);
	}

    FontDescription fontDescription;
    fontDescription.setLocale(document.contentLanguage());
	fontDescription.setRenderingMode(document.settings().fontRenderingMode());
	fontDescription.setOneFamily(WebKitFontFamilyNames::standardFamily);
    fontDescription.setKeywordSizeFromIdentifier(CSSValueMedium);
    int size = Style::fontSizeForKeyword(CSSValueMedium, false, document);
	fontDescription.setSpecifiedSize(size);
	bool useSVGZoomRules = document.isSVGDocument();
	fontDescription.setComputedSize(Style::computedFontSizeFromSpecifiedSize(size, fontDescription.isAbsoluteSize(), useSVGZoomRules, documentStyle.get(), document));

    std::pair<FontOrientation, NonCJKGlyphOrientation> fontAndGlyphOrientation = documentStyle->fontAndGlyphOrientation();
    FontOrientation fontOrientation = fontAndGlyphOrientation.first;
    NonCJKGlyphOrientation glyphOrientation = fontAndGlyphOrientation.second;
    fontDescription.setOrientation(fontOrientation);
    fontDescription.setNonCJKGlyphOrientation(glyphOrientation);

    documentStyle->setFontDescription(fontDescription);

    documentStyle->font().update(&const_cast<Document&>(document).fontSelector());

    return documentStyle.release();
}

}
}
