117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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 mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2001
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Peter Van der Beken <peterv@netscape.com> (original author)
|
|
*
|
|
*
|
|
* 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsXPathEvaluator.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIDOMClassInfo.h"
|
|
#include "nsXPathException.h"
|
|
#include "nsXPathExpression.h"
|
|
#include "nsXPathNSResolver.h"
|
|
#include "nsXPathResult.h"
|
|
#include "ProcessorState.h"
|
|
|
|
NS_IMPL_ADDREF(nsXPathEvaluator)
|
|
NS_IMPL_RELEASE(nsXPathEvaluator)
|
|
NS_INTERFACE_MAP_BEGIN(nsXPathEvaluator)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMXPathEvaluator)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMXPathEvaluator)
|
|
NS_INTERFACE_MAP_ENTRY_EXTERNAL_DOM_CLASSINFO(XPathEvaluator)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
nsXPathEvaluator::nsXPathEvaluator()
|
|
{
|
|
NS_INIT_ISUPPORTS();
|
|
}
|
|
|
|
nsXPathEvaluator::~nsXPathEvaluator()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXPathEvaluator::CreateExpression(const nsAString & aExpression,
|
|
nsIDOMXPathNSResolver *aResolver,
|
|
nsIDOMXPathExpression **aResult)
|
|
{
|
|
String expressionString(PromiseFlatString(aExpression).get());
|
|
// XXX (pvdb) TODO Set the right resolver on the ExprParser
|
|
Expr* expression = mParser.createExpr(expressionString);
|
|
if (!expression)
|
|
return NS_ERROR_DOM_INVALID_EXPRESSION_ERR;
|
|
|
|
*aResult = new nsXPathExpression(expression);
|
|
if (!*aResult) {
|
|
delete expression;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
NS_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXPathEvaluator::CreateNSResolver(nsIDOMNode *aNodeResolver,
|
|
nsIDOMXPathNSResolver **aResult)
|
|
{
|
|
NS_ENSURE_ARG(aNodeResolver);
|
|
*aResult = new nsXPathNSResolver(aNodeResolver);
|
|
NS_ENSURE_TRUE(*aResult, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXPathEvaluator::Evaluate(const nsAString & aExpression,
|
|
nsIDOMNode *aContextNode,
|
|
nsIDOMXPathNSResolver *aResolver,
|
|
PRUint16 aType,
|
|
nsIDOMXPathResult *aInResult,
|
|
nsIDOMXPathResult **aResult)
|
|
{
|
|
// XXX Need to check document of aContextNode if created by
|
|
// QI'ing a document.
|
|
|
|
nsCOMPtr<nsIDOMXPathExpression> expression;
|
|
nsresult rv = CreateExpression(aExpression, aResolver,
|
|
getter_AddRefs(expression));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return expression->Evaluate(aContextNode, aType, aInResult, aResult);
|
|
}
|