1/*
2 * Copyright 2005 Frerich Raabe <raabe@kde.org>
3 * Copyright (C) 2006 Apple Computer, Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "core/xml/XPathEvaluator.h"
29
30#include "bindings/core/v8/ExceptionState.h"
31#include "core/dom/ExceptionCode.h"
32#include "core/dom/Node.h"
33#include "core/xml/NativeXPathNSResolver.h"
34#include "core/xml/XPathExpression.h"
35#include "core/xml/XPathResult.h"
36#include "core/xml/XPathUtil.h"
37
38namespace blink {
39
40using namespace XPath;
41
42PassRefPtrWillBeRawPtr<XPathExpression> XPathEvaluator::createExpression(const String& expression, PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, ExceptionState& exceptionState)
43{
44    return XPathExpression::createExpression(expression, resolver, exceptionState);
45}
46
47PassRefPtrWillBeRawPtr<XPathNSResolver> XPathEvaluator::createNSResolver(Node* nodeResolver)
48{
49    return NativeXPathNSResolver::create(nodeResolver);
50}
51
52PassRefPtrWillBeRawPtr<XPathResult> XPathEvaluator::evaluate(const String& expression, Node* contextNode,
53    PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, unsigned short type, XPathResult* result, ExceptionState& exceptionState)
54{
55    if (!contextNode) {
56        exceptionState.throwDOMException(NotSupportedError, "The context node provided is null.");
57        return nullptr;
58    }
59
60    if (!isValidContextNode(contextNode)) {
61        exceptionState.throwDOMException(NotSupportedError, "The node provided is '" + contextNode->nodeName() + "', which is not a valid context node type.");
62        return nullptr;
63    }
64
65    RefPtrWillBeRawPtr<XPathExpression> expr = createExpression(expression, resolver, exceptionState);
66    if (exceptionState.hadException())
67        return nullptr;
68
69    return expr->evaluate(contextNode, type, result, exceptionState);
70}
71
72}
73