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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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
* 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 of 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 ***** */
#ifndef nsEnumeratorUtils_h__
#define nsEnumeratorUtils_h__
#include "nsIEnumerator.h"
#include "nsISupportsArray.h"
#ifdef VBOX_WITH_XPCOM_NAMESPACE_CLEANUP
#define NS_NewSingletonEnumerator VBoxNsxpNS_NewSingletonEnumerator
#define NS_NewUnionEnumerator VBoxNsxpNS_NewUnionEnumerator
#endif /* VBOX_WITH_XPCOM_NAMESPACE_CLEANUP */
class NS_COM nsArrayEnumerator : public nsISimpleEnumerator
{
public:
// nsISupports interface
NS_DECL_ISUPPORTS
// nsISimpleEnumerator interface
NS_IMETHOD HasMoreElements(PRBool* aResult);
NS_IMETHOD GetNext(nsISupports** aResult);
// nsArrayEnumerator methods
nsArrayEnumerator(nsISupportsArray* aValueArray);
private:
~nsArrayEnumerator(void);
protected:
nsISupportsArray* mValueArray;
PRInt32 mIndex;
};
extern NS_COM nsresult
NS_NewArrayEnumerator(nsISimpleEnumerator* *result,
nsISupportsArray* array);
////////////////////////////////////////////////////////////////////////////////
class NS_COM nsSingletonEnumerator : public nsISimpleEnumerator
{
public:
NS_DECL_ISUPPORTS
// nsISimpleEnumerator methods
NS_IMETHOD HasMoreElements(PRBool* aResult);
NS_IMETHOD GetNext(nsISupports** aResult);
nsSingletonEnumerator(nsISupports* aValue);
private:
~nsSingletonEnumerator();
protected:
nsISupports* mValue;
PRBool mConsumed;
};
extern "C" NS_COM nsresult
NS_NewSingletonEnumerator(nsISimpleEnumerator* *result,
nsISupports* singleton);
////////////////////////////////////////////////////////////////////////
class NS_COM nsUnionEnumerator : public nsISimpleEnumerator
{
public:
NS_DECL_ISUPPORTS
// nsISimpleEnumerator methods
NS_IMETHOD HasMoreElements(PRBool* aResult);
NS_IMETHOD GetNext(nsISupports** aResult);
nsUnionEnumerator(nsISimpleEnumerator* firstEnumerator,
nsISimpleEnumerator* secondEnumerator);
private:
~nsUnionEnumerator();
protected:
nsCOMPtr<nsISimpleEnumerator> mFirstEnumerator, mSecondEnumerator;
PRBool mConsumed;
PRBool mAtSecond;
};
extern "C" NS_COM nsresult
NS_NewUnionEnumerator(nsISimpleEnumerator* *result,
nsISimpleEnumerator* firstEnumerator,
nsISimpleEnumerator* secondEnumerator);
////////////////////////////////////////////////////////////////////////
#endif /* nsEnumeratorUtils_h__ */
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