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/* -*- Mode: C++; tab-width: 4; 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/. */
#ifndef txXPathNode_h__
#define txXPathNode_h__
#include "nsIContent.h"
#include "mozilla/dom/Document.h"
#include "nsINode.h"
#include "nsNameSpaceManager.h"
#include "nsContentUtils.h" // For NameSpaceManager().
typedef nsINode 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);
explicit txXPathNode(mozilla::dom::Document* aDocument)
: mNode(aDocument), mRefCountRoot(0), mIndex(eDocument) {
MOZ_COUNT_CTOR(txXPathNode);
}
txXPathNode(nsINode* aNode, uint32_t 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) { return aNode->SubtreeRoot(); }
nsINode* Root() const { return RootOf(mNode); }
nsINode* GetRootToAddRef() const { return mRefCountRoot ? Root() : nullptr; }
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);
}
mozilla::dom::Document* Document() const {
NS_ASSERTION(isDocument(), "wrong type");
return static_cast<mozilla::dom::Document*>(mNode);
}
enum PositionType { eDocument = (1 << 30), eContent = eDocument - 1 };
nsINode* mNode;
uint32_t mRefCountRoot : 1;
uint32_t mIndex : 31;
};
class txNamespaceManager {
public:
static int32_t getNamespaceID(const nsAString& aNamespaceURI);
static nsresult getNamespaceURI(const int32_t aID, nsAString& aResult);
};
/* static */
inline int32_t txNamespaceManager::getNamespaceID(
const nsAString& aNamespaceURI) {
int32_t namespaceID = kNameSpaceID_Unknown;
nsContentUtils::NameSpaceManager()->RegisterNameSpace(aNamespaceURI,
namespaceID);
return namespaceID;
}
/* static */
inline nsresult txNamespaceManager::getNamespaceURI(const int32_t 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__ */
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