/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * the Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   William Chen <wchen@mozilla.com> (Original Author)
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsDOMFileReaderSyncPrivate_h
#define nsDOMFileReaderSyncPrivate_h

#include "Workers.h"

#include "nsICharsetDetectionObserver.h"
#include "nsStringGlue.h"

class nsIInputStream;
class nsIDOMBlob;

BEGIN_WORKERS_NAMESPACE

class FileReaderSyncPrivate : public PrivatizableBase,
                              public nsICharsetDetectionObserver
{
  nsCString mCharset;
  nsresult ConvertStream(nsIInputStream *aStream, const char *aCharset,
                         nsAString &aResult);
  nsresult GuessCharset(nsIInputStream *aStream, nsACString &aCharset);

public:
  NS_DECL_ISUPPORTS

  FileReaderSyncPrivate();
  ~FileReaderSyncPrivate();

  nsresult ReadAsArrayBuffer(nsIDOMBlob* aBlob, PRUint32 aLength,
                             uint8* aBuffer);
  nsresult ReadAsBinaryString(nsIDOMBlob* aBlob, nsAString& aResult);
  nsresult ReadAsText(nsIDOMBlob* aBlob, const nsAString& aEncoding,
                      nsAString& aResult);
  nsresult ReadAsDataURL(nsIDOMBlob* aBlob, nsAString& aResult);

  // From nsICharsetDetectionObserver
  NS_IMETHOD Notify(const char *aCharset, nsDetectionConfident aConf);
};

END_WORKERS_NAMESPACE

#endif