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98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsEnumeratorUtils_h__
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#define nsEnumeratorUtils_h__
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#include "nsIEnumerator.h"
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#include "nsISupportsArray.h"
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class NS_COM nsArrayEnumerator : public nsISimpleEnumerator
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{
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public:
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// nsISupports interface
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NS_DECL_ISUPPORTS
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// nsISimpleEnumerator interface
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NS_IMETHOD HasMoreElements(PRBool* aResult);
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NS_IMETHOD GetNext(nsISupports** aResult);
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// nsRDFArrayEnumerator methods
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nsArrayEnumerator(nsISupportsArray* aValueArray);
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virtual ~nsArrayEnumerator(void);
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protected:
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nsISupportsArray* mValueArray;
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PRInt32 mIndex;
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};
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extern "C" NS_COM nsresult
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NS_NewArrayEnumerator(nsISimpleEnumerator* *result,
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nsISupportsArray* array);
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////////////////////////////////////////////////////////////////////////////////
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class NS_COM nsSingletonEnumerator : public nsISimpleEnumerator
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{
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public:
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NS_DECL_ISUPPORTS
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// nsISimpleEnumerator methods
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NS_IMETHOD HasMoreElements(PRBool* aResult);
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NS_IMETHOD GetNext(nsISupports** aResult);
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nsSingletonEnumerator(nsISupports* aValue);
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virtual ~nsSingletonEnumerator();
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protected:
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nsISupports* mValue;
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PRBool mConsumed;
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};
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extern "C" NS_COM nsresult
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NS_NewSingletonEnumerator(nsISimpleEnumerator* *result,
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nsISupports* singleton);
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////////////////////////////////////////////////////////////////////////////////
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class NS_COM nsAdapterEnumerator : public nsISimpleEnumerator
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{
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public:
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NS_DECL_ISUPPORTS
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// nsISimpleEnumerator methods
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NS_IMETHOD HasMoreElements(PRBool* aResult);
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NS_IMETHOD GetNext(nsISupports** aResult);
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nsAdapterEnumerator(nsIEnumerator* aEnum);
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virtual ~nsAdapterEnumerator();
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protected:
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nsIEnumerator* mEnum;
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nsISupports* mCurrent;
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PRBool mStarted;
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};
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extern "C" NS_COM nsresult
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NS_NewAdapterEnumerator(nsISimpleEnumerator* *result,
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nsIEnumerator* enumerator);
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////////////////////////////////////////////////////////////////////////
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#endif /* nsEnumeratorUtils_h__ */
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