mirror of
https://github.com/rn10950/RetroZilla.git
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351 lines
10 KiB
C++
351 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TransforMiiX XSLT processor code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2003
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Peter Van der Beken <peterv@propagandism.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef txXPathTreeWalker_h__
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#define txXPathTreeWalker_h__
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#include "txCore.h"
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#include "txXPathNode.h"
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class nsIAtom;
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#ifndef TX_EXE
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#include "nsINodeInfo.h"
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#include "nsVoidArray.h"
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class txUint32Array : public nsVoidArray
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{
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public:
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PRBool AppendValue(PRUint32 aValue)
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{
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return InsertElementAt(NS_INT32_TO_PTR(aValue), Count());
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}
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PRBool RemoveValueAt(PRUint32 aIndex)
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{
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return RemoveElementsAt(aIndex, 1);
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}
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PRInt32 ValueAt(PRUint32 aIndex) const
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{
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return NS_PTR_TO_INT32(ElementAt(aIndex));
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}
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};
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class nsIDOMDocument;
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#endif
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class txXPathTreeWalker
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{
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public:
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txXPathTreeWalker(const txXPathTreeWalker& aOther);
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explicit txXPathTreeWalker(const txXPathNode& aNode);
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~txXPathTreeWalker();
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PRBool getAttr(nsIAtom* aLocalName, PRInt32 aNSID, nsAString& aValue) const;
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PRInt32 getNamespaceID() const;
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PRUint16 getNodeType() const;
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void appendNodeValue(nsAString& aResult) const;
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void getNodeName(nsAString& aName) const;
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void moveTo(const txXPathTreeWalker& aWalker);
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PRBool moveToParent();
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PRBool moveToElementById(const nsAString& aID);
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PRBool moveToFirstAttribute();
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PRBool moveToNextAttribute();
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PRBool moveToFirstChild();
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PRBool moveToLastChild();
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PRBool moveToNextSibling();
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PRBool moveToPreviousSibling();
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PRBool isOnNode(const txXPathNode& aNode) const;
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const txXPathNode& getCurrentPosition() const;
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private:
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txXPathNode mPosition;
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#ifndef TX_EXE
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PRBool moveToValidAttribute(PRUint32 aStartIndex);
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PRBool moveToSibling(PRInt32 aDir);
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PRUint32 mCurrentIndex;
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txUint32Array mDescendants;
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#endif
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};
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class txXPathNodeUtils
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{
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public:
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static PRBool getAttr(const txXPathNode& aNode, nsIAtom* aLocalName,
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PRInt32 aNSID, nsAString& aValue);
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static already_AddRefed<nsIAtom> getLocalName(const txXPathNode& aNode);
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static void getLocalName(const txXPathNode& aNode, nsAString& aLocalName);
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static void getNodeName(const txXPathNode& aNode,
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nsAString& aName);
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static PRInt32 getNamespaceID(const txXPathNode& aNode);
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static void getNamespaceURI(const txXPathNode& aNode, nsAString& aURI);
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static PRUint16 getNodeType(const txXPathNode& aNode);
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static void appendNodeValue(const txXPathNode& aNode, nsAString& aResult);
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static PRBool isWhitespace(const txXPathNode& aNode);
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static txXPathNode* getDocument(const txXPathNode& aNode);
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static txXPathNode* getOwnerDocument(const txXPathNode& aNode);
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static PRInt32 getUniqueIdentifier(const txXPathNode& aNode);
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static nsresult getXSLTId(const txXPathNode& aNode, nsAString& aResult);
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static void release(txXPathNode* aNode);
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static void getBaseURI(const txXPathNode& aNode, nsAString& aURI);
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static PRIntn comparePosition(const txXPathNode& aNode,
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const txXPathNode& aOtherNode);
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static PRBool localNameEquals(const txXPathNode& aNode,
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nsIAtom* aLocalName);
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static PRBool isRoot(const txXPathNode& aNode);
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static PRBool isElement(const txXPathNode& aNode);
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static PRBool isAttribute(const txXPathNode& aNode);
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static PRBool isProcessingInstruction(const txXPathNode& aNode);
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static PRBool isComment(const txXPathNode& aNode);
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static PRBool isText(const txXPathNode& aNode);
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#ifdef TX_EXE
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private:
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static void appendNodeValueHelper(NodeDefinition* aNode, nsAString& aResult);
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#endif
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};
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#ifdef TX_EXE
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class txXPathNativeNode
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{
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public:
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static txXPathNode* createXPathNode(Node* aNode);
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static nsresult getElement(const txXPathNode& aNode, Element** aResult);
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static nsresult getDocument(const txXPathNode& aNode, Document** aResult);
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};
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#else
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class txXPathNativeNode
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{
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public:
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static txXPathNode* createXPathNode(nsIDOMNode* aNode);
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static txXPathNode* createXPathNode(nsIDOMDocument* aDocument);
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static nsresult getNode(const txXPathNode& aNode, nsIDOMNode** aResult);
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static nsIContent* getContent(const txXPathNode& aNode);
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static nsIDocument* getDocument(const txXPathNode& aNode);
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static void addRef(const txXPathNode& aNode)
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{
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// Hopefully it's ok to access mContent through mDocument.
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NS_ADDREF(aNode.mDocument);
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}
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static void release(const txXPathNode& aNode)
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{
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// Hopefully it's ok to access mContent through mDocument.
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nsISupports *node = aNode.mDocument;
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NS_RELEASE(node);
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}
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};
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#endif
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inline const txXPathNode&
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txXPathTreeWalker::getCurrentPosition() const
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{
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return mPosition;
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}
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inline PRBool
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txXPathTreeWalker::getAttr(nsIAtom* aLocalName, PRInt32 aNSID,
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nsAString& aValue) const
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{
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return txXPathNodeUtils::getAttr(mPosition, aLocalName, aNSID, aValue);
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}
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inline PRInt32
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txXPathTreeWalker::getNamespaceID() const
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{
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return txXPathNodeUtils::getNamespaceID(mPosition);
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}
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inline void
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txXPathTreeWalker::appendNodeValue(nsAString& aResult) const
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{
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txXPathNodeUtils::appendNodeValue(mPosition, aResult);
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}
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inline void
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txXPathTreeWalker::getNodeName(nsAString& aName) const
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{
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txXPathNodeUtils::getNodeName(mPosition, aName);
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}
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inline void
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txXPathTreeWalker::moveTo(const txXPathTreeWalker& aWalker)
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{
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#ifdef TX_EXE
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mPosition.mInner = aWalker.mPosition.mInner;
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#else
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mPosition.mIndex = aWalker.mPosition.mIndex;
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// Hopefully it's ok to access mContent through mDocument.
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mPosition.mDocument = aWalker.mPosition.mDocument;
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mCurrentIndex = aWalker.mCurrentIndex;
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mDescendants.Clear();
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#endif
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}
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inline PRBool
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txXPathTreeWalker::isOnNode(const txXPathNode& aNode) const
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{
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return (mPosition == aNode);
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}
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/* static */
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inline PRInt32
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txXPathNodeUtils::getUniqueIdentifier(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return NS_PTR_TO_INT32(aNode.mInner);
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#else
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NS_PRECONDITION(aNode.mIndex == txXPathNode::eDocument,
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"Only implemented for documents.");
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return NS_PTR_TO_INT32(aNode.mDocument);
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#endif
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}
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/* static */
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inline void
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txXPathNodeUtils::release(txXPathNode* aNode)
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{
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#ifdef TX_EXE
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delete aNode->mInner;
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#else
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NS_RELEASE(aNode->mDocument);
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::localNameEquals(const txXPathNode& aNode,
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nsIAtom* aLocalName)
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{
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#ifdef TX_EXE
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nsCOMPtr<nsIAtom> localName;
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aNode.mInner->getLocalName(getter_AddRefs(localName));
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return localName == aLocalName;
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#else
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if (aNode.isContent()) {
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nsINodeInfo *ni = aNode.mContent->GetNodeInfo();
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if (ni) {
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return ni->Equals(aLocalName);
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}
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}
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nsCOMPtr<nsIAtom> localName = txXPathNodeUtils::getLocalName(aNode);
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return localName == aLocalName;
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isRoot(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::DOCUMENT_NODE;
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#else
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return aNode.isDocument();
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isElement(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::ELEMENT_NODE;
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#else
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return aNode.isContent() &&
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aNode.mContent->IsContentOfType(nsIContent::eELEMENT);
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isAttribute(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::ATTRIBUTE_NODE;
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#else
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return aNode.isAttribute();
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isProcessingInstruction(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::PROCESSING_INSTRUCTION_NODE;
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#else
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return aNode.isContent() &&
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aNode.mContent->IsContentOfType(nsIContent::ePROCESSING_INSTRUCTION);
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isComment(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::COMMENT_NODE;
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#else
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return aNode.isContent() &&
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aNode.mContent->IsContentOfType(nsIContent::eCOMMENT);
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#endif
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}
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/* static */
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inline PRBool
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txXPathNodeUtils::isText(const txXPathNode& aNode)
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{
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#ifdef TX_EXE
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return aNode.mInner->getNodeType() == Node::TEXT_NODE;
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#else
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return aNode.isContent() &&
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aNode.mContent->IsContentOfType(nsIContent::eTEXT);
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#endif
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}
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#endif /* txXPathTreeWalker_h__ */
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