/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_textencoder_h_

#define mozilla_dom_textencoder_h_

#include "mozilla/dom/NonRefcountedDOMObject.h"

#include "mozilla/dom/TextEncoderBinding.h"

#include "mozilla/dom/TypedArray.h"

#include "mozilla/Encoding.h"

namespace mozilla {

class ErrorResult;

namespace dom {

class TextEncoder final : public NonRefcountedDOMObject

{

public:

  // The WebIDL constructor.

  static TextEncoder*

  Constructor(const GlobalObject& aGlobal,

              ErrorResult& aRv)

  {

    nsAutoPtr<TextEncoder> txtEncoder(new TextEncoder());

    txtEncoder->Init();

    return txtEncoder.forget();

  }

  TextEncoder()

  {

  }

  virtual

  ~TextEncoder()

  {}

  bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)

  {

    return TextEncoder_Binding::Wrap(aCx, this, aGivenProto, aReflector);

  }

protected:

  void Init();

public:

  /**

   * Return the encoding name.

   *

   * @param aEncoding, current encoding.

   */

  void GetEncoding(nsAString& aEncoding);

  /**

   * Encodes incoming utf-16 code units/ DOM string to utf-8.

   *

   * @param aCx        Javascript context.

   * @param aObj       the wrapper of the TextEncoder

   * @param aString    utf-16 code units to be encoded.

   * @return JSObject* The Uint8Array wrapped in a JS object.  Returned via

   *                   the aRetval out param.

   */

  void Encode(JSContext* aCx,

              JS::Handle<JSObject*> aObj,

              const nsAString& aString,

              JS::MutableHandle<JSObject*> aRetval,

              ErrorResult& aRv);

};

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_textencoder_h_