mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-07 20:17:37 +00:00
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#ifndef __nsIContentIterator_h___
|
|
#define __nsIContentIterator_h___
|
|
|
|
#include "nsISupports.h"
|
|
|
|
class nsIContent;
|
|
class nsIDOMRange;
|
|
|
|
#define NS_ICONTENTITERTOR_IID \
|
|
{0xa6cf90e4, 0x15b3, 0x11d2, \
|
|
{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
|
|
|
|
class nsIContentIterator : public nsISupports {
|
|
public:
|
|
|
|
static const nsIID& GetIID() { static nsIID iid = NS_ICONTENTITERTOR_IID; return iid; }
|
|
|
|
/* Initializes an iterator for the subtree rooted by the node aRoot
|
|
*/
|
|
NS_IMETHOD Init(nsIContent* aRoot)=0;
|
|
|
|
/* Initializes an iterator for the subtree defined by the range aRange
|
|
*/
|
|
NS_IMETHOD Init(nsIDOMRange* aRange)=0;
|
|
|
|
/** First will reset the list. will return NS_FAILED if no items
|
|
*/
|
|
NS_IMETHOD First()=0;
|
|
|
|
/** Last will reset the list to the end. will return NS_FAILED if no items
|
|
*/
|
|
NS_IMETHOD Last()=0;
|
|
|
|
/** Next will advance the list. will return failed if allready at end
|
|
*/
|
|
NS_IMETHOD Next()=0;
|
|
|
|
/** Prev will decrement the list. will return failed if allready at beginning
|
|
*/
|
|
NS_IMETHOD Prev()=0;
|
|
|
|
/** CurrentItem will return the CurrentItem item it will fail if the list is empty
|
|
* @param aItem return value
|
|
*/
|
|
NS_IMETHOD CurrentNode(nsIContent **aNode)=0;
|
|
|
|
/** return if the collection is at the end. that is the beginning following a call to Prev
|
|
* and it is the end of the list following a call to next
|
|
* @param aItem return value
|
|
*/
|
|
NS_IMETHOD IsDone()=0;
|
|
|
|
};
|
|
|
|
|
|
#endif // __nsIContentIterator_h___
|
|
|