зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
2.7 KiB
C++
93 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "txExpr.h"
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#include "nsAtom.h"
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#include "nsGkAtoms.h"
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#include "txXPathTreeWalker.h"
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#include "txIXPathContext.h"
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txNameTest::txNameTest(nsAtom* aPrefix, nsAtom* aLocalName, int32_t aNSID,
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uint16_t aNodeType)
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: mPrefix(aPrefix),
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mLocalName(aLocalName),
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mNamespace(aNSID),
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mNodeType(aNodeType) {
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if (aPrefix == nsGkAtoms::_empty) mPrefix = nullptr;
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NS_ASSERTION(aLocalName, "txNameTest without a local name?");
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NS_ASSERTION(aNodeType == txXPathNodeType::DOCUMENT_NODE ||
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aNodeType == txXPathNodeType::ELEMENT_NODE ||
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aNodeType == txXPathNodeType::ATTRIBUTE_NODE,
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"Go fix txNameTest::matches");
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}
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nsresult txNameTest::matches(const txXPathNode& aNode,
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txIMatchContext* aContext, bool& aMatched) {
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if ((mNodeType == txXPathNodeType::ELEMENT_NODE &&
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!txXPathNodeUtils::isElement(aNode)) ||
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(mNodeType == txXPathNodeType::ATTRIBUTE_NODE &&
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!txXPathNodeUtils::isAttribute(aNode)) ||
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(mNodeType == txXPathNodeType::DOCUMENT_NODE &&
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!txXPathNodeUtils::isRoot(aNode))) {
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aMatched = false;
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return NS_OK;
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}
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// Totally wild?
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if (mLocalName == nsGkAtoms::_asterisk && !mPrefix) {
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aMatched = true;
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return NS_OK;
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}
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// Compare namespaces
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if (mNamespace != txXPathNodeUtils::getNamespaceID(aNode) &&
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!(mNamespace == kNameSpaceID_None &&
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txXPathNodeUtils::isHTMLElementInHTMLDocument(aNode))) {
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aMatched = false;
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return NS_OK;
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}
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// Name wild?
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if (mLocalName == nsGkAtoms::_asterisk) {
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aMatched = true;
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return NS_OK;
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}
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// Compare local-names
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aMatched = txXPathNodeUtils::localNameEquals(aNode, mLocalName);
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return NS_OK;
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}
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/*
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* Returns the default priority of this txNodeTest
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*/
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double txNameTest::getDefaultPriority() {
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if (mLocalName == nsGkAtoms::_asterisk) {
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if (!mPrefix) return -0.5;
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return -0.25;
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}
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return 0;
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}
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txNodeTest::NodeTestType txNameTest::getType() { return NAME_TEST; }
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bool txNameTest::isSensitiveTo(Expr::ContextSensitivity aContext) {
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return !!(aContext & Expr::NODE_CONTEXT);
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}
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#ifdef TX_TO_STRING
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void txNameTest::toString(nsAString& aDest) {
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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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