81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsDeleteObserver.h"
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#include "nsVoidArray.h"
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//-------------------------------------------------------------------------
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//
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//-------------------------------------------------------------------------
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nsDeleteObserved::nsDeleteObserved(void* aObject)
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{
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mDeleteObserverArray = nsnull;
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mObject = (aObject ? aObject : this);
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}
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//-------------------------------------------------------------------------
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//
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//-------------------------------------------------------------------------
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nsDeleteObserved::~nsDeleteObserved()
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{
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if (mDeleteObserverArray)
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{
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// notify observers of the delete
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for (PRInt32 i = mDeleteObserverArray->Count() - 1; i >= 0; --i)
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{
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nsDeleteObserver* deleteObserver = static_cast<nsDeleteObserver*>(mDeleteObserverArray->ElementAt(i));
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if (deleteObserver)
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deleteObserver->NotifyDelete(mObject);
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}
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delete mDeleteObserverArray;
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mDeleteObserverArray = nsnull;
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}
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}
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//-------------------------------------------------------------------------
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//
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//-------------------------------------------------------------------------
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PRBool nsDeleteObserved::AddDeleteObserver(nsDeleteObserver* aDeleteObserver)
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{
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if (! mDeleteObserverArray)
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mDeleteObserverArray = new nsVoidArray();
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if (mDeleteObserverArray)
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return mDeleteObserverArray->AppendElement(aDeleteObserver);
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return PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//
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//-------------------------------------------------------------------------
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PRBool nsDeleteObserved::RemoveDeleteObserver(nsDeleteObserver* aDeleteObserver)
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{
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if (mDeleteObserverArray)
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return mDeleteObserverArray->RemoveElement(aDeleteObserver);
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return PR_FALSE;
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}
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