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 "XPathEvaluator.h"
29
30#if ENABLE(XPATH)
31
32#include "ExceptionCode.h"
33#include "NativeXPathNSResolver.h"
34#include "Node.h"
35#include "XPathExpression.h"
36#include "XPathResult.h"
37#include "XPathUtil.h"
38
39namespace WebCore {
40
41using namespace XPath;
42
43PassRefPtr<XPathExpression> XPathEvaluator::createExpression(const String& expression,
44                                                             XPathNSResolver* resolver,
45                                                             ExceptionCode& ec)
46{
47    return XPathExpression::createExpression(expression, resolver, ec);
48}
49
50PassRefPtr<XPathNSResolver> XPathEvaluator::createNSResolver(Node* nodeResolver)
51{
52    return NativeXPathNSResolver::create(nodeResolver);
53}
54
55PassRefPtr<XPathResult> XPathEvaluator::evaluate(const String& expression,
56                                                 Node* contextNode,
57                                                 XPathNSResolver* resolver,
58                                                 unsigned short type,
59                                                 XPathResult* result,
60                                                 ExceptionCode& ec)
61{
62    if (!isValidContextNode(contextNode)) {
63        ec = NOT_SUPPORTED_ERR;
64        return 0;
65    }
66
67    ec = 0;
68    RefPtr<XPathExpression> expr = createExpression(expression, resolver, ec);
69    if (ec)
70        return 0;
71
72    return expr->evaluate(contextNode, type, result, ec);
73}
74
75}
76
77#endif // ENABLE(XPATH)
78