/*

 * This file is part of the XSL implementation.

 *

 * Copyright (C) 2004, 2006, 2008 Apple 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.

 *

 */

#ifndef XSLStyleSheet_h

#define XSLStyleSheet_h

#if ENABLE(XSLT)

#include "StyleSheet.h"

#if !USE(QXMLQUERY)

#include <libxml/parser.h>

#include <libxslt/transform.h>

#endif

#include <wtf/PassRefPtr.h>

namespace WebCore {

class DocLoader;

class Document;

class XSLImportRule;

class XSLStyleSheet : public StyleSheet {

public:

#if !USE(QXMLQUERY)

    static PassRefPtr<XSLStyleSheet> create(XSLImportRule* parentImport, const String& href)

    {

        return adoptRef(new XSLStyleSheet(parentImport, href));

    }

#endif

    static PassRefPtr<XSLStyleSheet> create(Node* parentNode, const String& href)

    {

        return adoptRef(new XSLStyleSheet(parentNode, href, false));

    }

    static PassRefPtr<XSLStyleSheet> createEmbedded(Node* parentNode, const String& href)

    {

        return adoptRef(new XSLStyleSheet(parentNode, href, true));

    }

    virtual ~XSLStyleSheet();

    virtual bool isXSLStyleSheet() const { return true; }

    virtual String type() const { return "text/xml"; }

    virtual bool parseString(const String &string, bool strict = true);

    virtual bool isLoading();

    virtual void checkLoaded();

    void loadChildSheets();

    void loadChildSheet(const String& href);

    DocLoader* docLoader();

    Document* ownerDocument() { return m_ownerDocument; }

    void setParentStyleSheet(XSLStyleSheet* parent);

#if USE(QXMLQUERY)

    String sheetString() const { return m_sheetString; }

#else

    xmlDocPtr document();

    xsltStylesheetPtr compileStyleSheet();

    xmlDocPtr locateStylesheetSubResource(xmlDocPtr parentDoc, const xmlChar* uri);

#endif

    void clearDocuments();

    void markAsProcessed();

    bool processed() const { return m_processed; }

private:

    XSLStyleSheet(Node* parentNode, const String& href, bool embedded);

#if !USE(QXMLQUERY)

    XSLStyleSheet(XSLImportRule* parentImport, const String& href);

#endif

    Document* m_ownerDocument;

    bool m_embedded;

    bool m_processed;

#if USE(QXMLQUERY)

    String m_sheetString;

#else

    xmlDocPtr m_stylesheetDoc;

    bool m_stylesheetDocTaken;

#endif

    XSLStyleSheet* m_parentStyleSheet;

};

} // namespace WebCore

#endif // ENABLE(XSLT)

#endif // XSLStyleSheet_h