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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* Implementation of DOM Traversal's nsIDOMTreeWalker
*/
#ifndef nsTraversal_h___
#define nsTraversal_h___
#include "nsCOMPtr.h"
#include "nsIDocument.h" // for NodeFilterHolder
#include "mozilla/dom/CallbackObject.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/NodeFilterBinding.h"
#include "nsIDOMNodeFilter.h"
class nsINode;
class nsTraversal
{
public:
nsTraversal(nsINode *aRoot,
uint32_t aWhatToShow,
mozilla::dom::NodeFilterHolder aFilter);
virtual ~nsTraversal();
protected:
nsCOMPtr<nsINode> mRoot;
uint32_t mWhatToShow;
mozilla::dom::NodeFilterHolder mFilter;
bool mInAcceptNode;
/*
* Tests if and how a node should be filtered. Uses mWhatToShow and
* mFilter to test the node.
* @param aNode Node to test
* @param aResult Whether we succeeded
* @returns Filtervalue. See nsIDOMNodeFilter.idl
*/
int16_t TestNode(nsINode* aNode, mozilla::ErrorResult& aResult);
};
#endif
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