File: XSLTProcessor.h

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/*
 * This file is part of the XSL implementation.
 *
 * Copyright (C) 2004, 2007, 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 XSLTProcessor_h
#define XSLTProcessor_h

#include "bindings/core/v8/ScriptWrappable.h"
#include "core/dom/Node.h"
#include "core/xml/XSLStyleSheet.h"
#include "platform/RuntimeEnabledFeatures.h"
#include "wtf/HashMap.h"
#include "wtf/text/StringHash.h"

#include <libxml/parserInternals.h>
#include <libxslt/documents.h>

namespace blink {

class LocalFrame;
class Document;
class DocumentFragment;

class XSLTProcessor final : public GarbageCollectedFinalized<XSLTProcessor>,
                            public ScriptWrappable {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static XSLTProcessor* create(Document& document) {
    DCHECK(RuntimeEnabledFeatures::xsltEnabled());
    return new XSLTProcessor(document);
  }
  ~XSLTProcessor();

  void setXSLStyleSheet(XSLStyleSheet* styleSheet) {
    m_stylesheet = styleSheet;
  }
  bool transformToString(Node* source,
                         String& resultMIMEType,
                         String& resultString,
                         String& resultEncoding);
  Document* createDocumentFromSource(const String& source,
                                     const String& sourceEncoding,
                                     const String& sourceMIMEType,
                                     Node* sourceNode,
                                     LocalFrame*);

  // DOM methods
  void importStylesheet(Node* style) { m_stylesheetRootNode = style; }
  DocumentFragment* transformToFragment(Node* source, Document* ouputDoc);
  Document* transformToDocument(Node* source);

  void setParameter(const String& namespaceURI,
                    const String& localName,
                    const String& value);
  String getParameter(const String& namespaceURI,
                      const String& localName) const;
  void removeParameter(const String& namespaceURI, const String& localName);
  void clearParameters() { m_parameters.clear(); }

  void reset();

  static void parseErrorFunc(void* userData, xmlError*);
  static void genericErrorFunc(void* userData, const char* msg, ...);

  // Only for libXSLT callbacks
  XSLStyleSheet* xslStylesheet() const { return m_stylesheet.get(); }

  typedef HashMap<String, String> ParameterMap;

  DECLARE_TRACE();

 private:
  XSLTProcessor(Document& document) : m_document(&document) {}

  Member<XSLStyleSheet> m_stylesheet;
  Member<Node> m_stylesheetRootNode;
  Member<Document> m_document;
  ParameterMap m_parameters;
};

}  // namespace blink

#endif  // XSLTProcessor_h