/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 *
 * 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 NPL, 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 NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsJSUtils_h__
#define nsJSUtils_h__

/**
 * This is not a generated file. It contains common utility functions 
 * invoked from the JavaScript code generated from IDL interfaces.
 * The goal of the utility functions is to cut down on the size of
 * the generated code itself.
 */

#include "nsISupports.h"
#include "jsapi.h"
#include "nsString.h"

class nsIDOMEventListener;
class nsIScriptContext;
class nsIScriptGlobalObject;
class nsIScriptSecurityManager;

class nsJSUtils {
public:
  static JSBool GetCallingLocation(JSContext* aContext, const char* *aFilename,
                                   PRUint32 *aLineno);

  static void ConvertStringToJSVal(const nsString& aProp, JSContext* aContext,
                                   jsval* aReturn);

  static PRBool ConvertJSValToXPCObject(nsISupports** aSupports, REFNSIID aIID,
                                        JSContext* aContext, jsval aValue);

  static void ConvertJSValToString(nsAWritableString& aString,
                                   JSContext* aContext, jsval aValue);

  static PRBool ConvertJSValToUint32(PRUint32* aProp, JSContext* aContext,
                                     jsval aValue);

  static nsresult GetStaticScriptGlobal(JSContext* aContext, JSObject* aObj,
                                        nsIScriptGlobalObject** aGlobal);

  static nsresult GetStaticScriptContext(JSContext* aContext, JSObject* aObj,
                                         nsIScriptContext** aScriptContext);

  static nsresult GetDynamicScriptGlobal(JSContext *aContext,
                                         nsIScriptGlobalObject** aGlobal);

  static nsresult GetDynamicScriptContext(JSContext *aContext,
                                          nsIScriptContext** aScriptContext);
};

#endif /* nsJSUtils_h__ */