/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC.
 * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef XMLErrors_h
#define XMLErrors_h

#include "platform/heap/Handle.h"
#include "platform/wtf/text/StringBuilder.h"
#include "platform/wtf/text/TextPosition.h"

namespace blink {

class Document;

class XMLErrors {
  DISALLOW_NEW();

 public:
  explicit XMLErrors(Document*);
  DECLARE_TRACE();

  // Exposed for callbacks:
  enum ErrorType { kErrorTypeWarning, kErrorTypeNonFatal, kErrorTypeFatal };
  void HandleError(ErrorType,
                   const char* message,
                   int line_number,
                   int column_number);
  void HandleError(ErrorType, const char* message, TextPosition);

  void InsertErrorMessageBlock();

 private:
  void AppendErrorMessage(const String& type_string,
                          TextPosition,
                          const char* message);

  Member<Document> document_;

  int error_count_;
  TextPosition last_error_position_;
  StringBuilder error_messages_;
};

}  // namespace blink

#endif  // XMLErrors_h
