gecko/content/xslt/src/xpath/txXPathNode.h

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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 TransforMiiX XSLT processor code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Peter Van der Beken <peterv@propagandism.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 txXPathNode_h__
#define txXPathNode_h__
#include "nsAutoPtr.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIDOMNode.h"
#include "nsINameSpaceManager.h"
#include "nsContentUtils.h"
typedef nsIDOMNode txXPathNodeType;
class txXPathNode
{
public:
bool operator==(const txXPathNode& aNode) const;
bool operator!=(const txXPathNode& aNode) const
{
return !(*this == aNode);
}
~txXPathNode();
private:
friend class txNodeSet;
friend class txXPathNativeNode;
friend class txXPathNodeUtils;
friend class txXPathTreeWalker;
txXPathNode(const txXPathNode& aNode);
txXPathNode(nsIDocument* aDocument) : mNode(aDocument),
mRefCountRoot(0),
mIndex(eDocument)
{
MOZ_COUNT_CTOR(txXPathNode);
}
txXPathNode(nsINode *aNode, PRUint32 aIndex, nsINode *aRoot)
: mNode(aNode),
mRefCountRoot(aRoot ? 1 : 0),
mIndex(aIndex)
{
MOZ_COUNT_CTOR(txXPathNode);
if (aRoot) {
NS_ADDREF(aRoot);
}
}
static nsINode *RootOf(nsINode *aNode)
{
nsINode *ancestor, *root = aNode;
while ((ancestor = root->GetNodeParent())) {
root = ancestor;
}
return root;
}
nsINode *Root() const
{
return RootOf(mNode);
}
nsINode *GetRootToAddRef() const
{
return mRefCountRoot ? Root() : nsnull;
}
bool isDocument() const
{
return mIndex == eDocument;
}
bool isContent() const
{
return mIndex == eContent;
}
bool isAttribute() const
{
return mIndex != eDocument && mIndex != eContent;
}
nsIContent* Content() const
{
NS_ASSERTION(isContent() || isAttribute(), "wrong type");
return static_cast<nsIContent*>(mNode);
}
nsIDocument* Document() const
{
NS_ASSERTION(isDocument(), "wrong type");
return static_cast<nsIDocument*>(mNode);
}
enum PositionType
{
eDocument = (1 << 30),
eContent = eDocument - 1
};
nsINode* mNode;
PRUint32 mRefCountRoot : 1;
PRUint32 mIndex : 31;
};
class txNamespaceManager
{
public:
static PRInt32 getNamespaceID(const nsAString& aNamespaceURI);
static nsresult getNamespaceURI(const PRInt32 aID, nsAString& aResult);
};
/* static */
inline PRInt32
txNamespaceManager::getNamespaceID(const nsAString& aNamespaceURI)
{
PRInt32 namespaceID = kNameSpaceID_Unknown;
nsContentUtils::NameSpaceManager()->
RegisterNameSpace(aNamespaceURI, namespaceID);
return namespaceID;
}
/* static */
inline nsresult
txNamespaceManager::getNamespaceURI(const PRInt32 aID, nsAString& aResult)
{
return nsContentUtils::NameSpaceManager()->
GetNameSpaceURI(aID, aResult);
}
inline bool
txXPathNode::operator==(const txXPathNode& aNode) const
{
return mIndex == aNode.mIndex && mNode == aNode.mNode;
}
#endif /* txXPathNode_h__ */