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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"
-
- 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__ */
-