/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* ***** 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 Web Workers.
 *
 * 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):
 *   Ben Turner <bent.mozilla@gmail.com> (Original Author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "ChromeWorkerScope.h"

#include "jsapi.h"
#include "jscntxt.h"

#include "nsXPCOM.h"
#include "nsNativeCharsetUtils.h"
#include "nsStringGlue.h"

USING_WORKERS_NAMESPACE

namespace {

#ifdef BUILD_CTYPES
char*
UnicodeToNative(JSContext* aCx, const jschar* aSource, size_t aSourceLen)
{
  nsDependentString unicode(aSource, aSourceLen);

  nsCAutoString native;
  if (NS_FAILED(NS_CopyUnicodeToNative(unicode, native))) {
    JS_ReportError(aCx, "Could not convert string to native charset!");
    return nsnull;
  }

  char* result = static_cast<char*>(JS_malloc(aCx, native.Length() + 1));
  if (!result) {
    return nsnull;
  }

  memcpy(result, native.get(), native.Length());
  result[native.Length()] = 0;
  return result;
}

JSCTypesCallbacks gCTypesCallbacks = {
  UnicodeToNative
};
#endif

} // anonymous namespace

BEGIN_WORKERS_NAMESPACE

namespace chromeworker {

bool
DefineChromeWorkerFunctions(JSContext* aCx, JSObject* aGlobal)
{
#ifdef BUILD_CTYPES
  jsval ctypes;
  if (!JS_InitCTypesClass(aCx, aGlobal) ||
      !JS_GetProperty(aCx, aGlobal, "ctypes", &ctypes) ||
      !JS_SetCTypesCallbacks(aCx, JSVAL_TO_OBJECT(ctypes), &gCTypesCallbacks)) {
    return false;
  }
#endif

  return true;
}

} // namespace chromeworker

END_WORKERS_NAMESPACE