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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "nsIAtom.h"
#include "txIXPathContext.h"
#include "txNodeSet.h"
#include "txExpr.h"
#include "txXPathTreeWalker.h"
txNamedAttributeStep::txNamedAttributeStep(int32_t aNsID,
nsIAtom* aPrefix,
nsIAtom* aLocalName)
: mNamespace(aNsID),
mPrefix(aPrefix),
mLocalName(aLocalName)
{
}
nsresult
txNamedAttributeStep::evaluate(txIEvalContext* aContext,
txAExprResult** aResult)
{
*aResult = nullptr;
RefPtr<txNodeSet> nodes;
nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
txXPathTreeWalker walker(aContext->getContextNode());
if (walker.moveToNamedAttribute(mLocalName, mNamespace)) {
rv = nodes->append(walker.getCurrentPosition());
NS_ENSURE_SUCCESS(rv, rv);
}
NS_ADDREF(*aResult = nodes);
return NS_OK;
}
TX_IMPL_EXPR_STUBS_0(txNamedAttributeStep, NODESET_RESULT)
bool
txNamedAttributeStep::isSensitiveTo(ContextSensitivity aContext)
{
return !!(aContext & NODE_CONTEXT);
}
#ifdef TX_TO_STRING
void
txNamedAttributeStep::toString(nsAString& aDest)
{
aDest.Append(char16_t('@'));
if (mPrefix) {
nsAutoString prefix;
mPrefix->ToString(prefix);
aDest.Append(prefix);
aDest.Append(char16_t(':'));
}
nsAutoString localName;
mLocalName->ToString(localName);
aDest.Append(localName);
}
#endif
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