зеркало из https://github.com/mozilla/gecko-dev.git
65 строки
1.7 KiB
C++
65 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIAtom.h"
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#include "txIXPathContext.h"
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#include "txNodeSet.h"
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#include "txExpr.h"
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#include "txXPathTreeWalker.h"
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txNamedAttributeStep::txNamedAttributeStep(int32_t aNsID,
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nsIAtom* aPrefix,
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nsIAtom* aLocalName)
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: mNamespace(aNsID),
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mPrefix(aPrefix),
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mLocalName(aLocalName)
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{
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}
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nsresult
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txNamedAttributeStep::evaluate(txIEvalContext* aContext,
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txAExprResult** aResult)
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{
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*aResult = nullptr;
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nsRefPtr<txNodeSet> nodes;
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nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
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NS_ENSURE_SUCCESS(rv, rv);
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txXPathTreeWalker walker(aContext->getContextNode());
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if (walker.moveToNamedAttribute(mLocalName, mNamespace)) {
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rv = nodes->append(walker.getCurrentPosition());
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NS_ENSURE_SUCCESS(rv, rv);
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}
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NS_ADDREF(*aResult = nodes);
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return NS_OK;
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}
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TX_IMPL_EXPR_STUBS_0(txNamedAttributeStep, NODESET_RESULT)
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bool
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txNamedAttributeStep::isSensitiveTo(ContextSensitivity aContext)
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{
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return !!(aContext & NODE_CONTEXT);
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}
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#ifdef TX_TO_STRING
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void
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txNamedAttributeStep::toString(nsAString& aDest)
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{
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aDest.Append(char16_t('@'));
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if (mPrefix) {
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nsAutoString prefix;
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mPrefix->ToString(prefix);
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aDest.Append(prefix);
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aDest.Append(char16_t(':'));
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}
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nsAutoString localName;
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mLocalName->ToString(localName);
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aDest.Append(localName);
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}
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#endif
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