зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
2.5 KiB
C++
97 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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 Communicator client code,
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* released March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* 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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* Samir Gehani <sgehani@netscape.com>
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*/
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#ifndef _NS_COMPONENTLIST_H_
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#define _NS_COMPONENTLIST_H_
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#include "XIErrors.h"
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class nsComponent;
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class nsComponentList
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{
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public:
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nsComponentList();
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~nsComponentList();
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/**
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* GetHead
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*
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* Initializes the next ptr to the second item and
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* returns the head item.
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*
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* @return mHead the head of the singly-linked list
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*/
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nsComponent * GetHead();
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/**
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* GetNext
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*
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* Returns the next available item. GetFirst() has to have
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* been called prior calling this and after the last time
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* the entire list was iterated over.
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*
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* @return mNext the next available component
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*/
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nsComponent * GetNext();
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/**
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* GetTail
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*
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* Returns the tail item of the list.
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*
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* @return mTail the tail item of the list
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*/
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nsComponent * GetTail();
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/**
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* AddComponent
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*
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* Adds the supplied component to the list's tail.
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*
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* @param aComponent the component to add
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* @return err integer err code (zero means OK)
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*/
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int AddComponent(nsComponent *aComponent);
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/**
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* RemoveComponent
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*
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* Searches the list and removes the first component that
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* matches the supplied component.
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*
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* @param aComponent the component to remove
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* @return err integer error code (zero means OK)
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*/
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int RemoveComponent(nsComponent *aComponent);
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private:
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nsComponent *mHead;
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nsComponent *mTail;
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nsComponent *mNext;
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int mLength;
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};
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#endif /* _NS_COMPONENTLIST_H_ */
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