mirror of
https://github.com/rn10950/RetroZilla.git
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139 lines
4.2 KiB
C++
139 lines
4.2 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) 2001
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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 nsXPathResult_h__
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#define nsXPathResult_h__
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#include "ExprResult.h"
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#include "nsIDOMXPathResult.h"
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#include "nsIDocument.h"
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#include "nsIDocumentObserver.h"
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#include "nsCOMPtr.h"
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#include "nsCOMArray.h"
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// {15b9b301-2012-11d6-a7f2-e6d0a678995c}
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#define NS_IXPATHRESULT_IID \
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{ 0x15b9b301, 0x2012, 0x11d6, {0xa7, 0xf2, 0xe6, 0xd0, 0xa6, 0x78, 0x99, 0x5c }};
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class nsIXPathResult : public nsISupports
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{
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IXPATHRESULT_IID)
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virtual nsresult SetExprResult(txAExprResult *aExprResult,
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PRUint16 aResultType) = 0;
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virtual nsresult GetExprResult(txAExprResult **aExprResult) = 0;
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virtual nsresult Clone(nsIXPathResult **aResult) = 0;
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};
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/**
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* Helper class to keep Mozilla node objects alive as long as the nodeset is
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* alive.
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*/
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class txResultHolder
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{
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public:
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~txResultHolder()
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{
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releaseNodeSet();
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}
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txAExprResult *get()
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{
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return mResult;
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}
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void set(txAExprResult *aResult);
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private:
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void releaseNodeSet();
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nsRefPtr<txAExprResult> mResult;
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};
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/**
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* A class for evaluating an XPath expression string
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*/
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class nsXPathResult : public nsIDOMXPathResult,
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public nsIDocumentObserver,
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public nsIXPathResult
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{
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public:
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nsXPathResult();
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virtual ~nsXPathResult();
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// nsISupports interface
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NS_DECL_ISUPPORTS
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// nsIDOMXPathResult interface
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NS_DECL_NSIDOMXPATHRESULT
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// nsIDocumentObserver interface
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NS_DECL_NSIDOCUMENTOBSERVER
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// nsIXPathResult interface
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nsresult SetExprResult(txAExprResult *aExprResult, PRUint16 aResultType);
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nsresult GetExprResult(txAExprResult **aExprResult);
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nsresult Clone(nsIXPathResult **aResult);
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private:
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PRBool isSnapshot() const
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{
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return mResultType == UNORDERED_NODE_SNAPSHOT_TYPE ||
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mResultType == ORDERED_NODE_SNAPSHOT_TYPE;
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}
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PRBool isIterator() const
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{
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return mResultType == UNORDERED_NODE_ITERATOR_TYPE ||
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mResultType == ORDERED_NODE_ITERATOR_TYPE;
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}
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PRBool isNode() const
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{
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return mResultType == FIRST_ORDERED_NODE_TYPE ||
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mResultType == ANY_UNORDERED_NODE_TYPE;
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}
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void Invalidate();
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txResultHolder mResult;
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nsCOMPtr<nsIDocument> mDocument;
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PRUint32 mCurrentPos;
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PRUint16 mResultType;
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PRPackedBool mInvalidIteratorState;
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};
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#endif
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