1/*
2 * Copyright 2005 Frerich Raabe <raabe@kde.org>
3 * Copyright (C) 2006, 2013 Apple Inc. All rights reserved.
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#ifndef XPathExpression_h
28#define XPathExpression_h
29
30#include <wtf/Forward.h>
31#include <wtf/RefCounted.h>
32
33namespace WebCore {
34
35    typedef int ExceptionCode;
36
37    class Node;
38    class XPathNSResolver;
39    class XPathResult;
40
41    namespace XPath {
42        class Expression;
43    }
44
45    class XPathExpression : public RefCounted<XPathExpression> {
46    public:
47        static PassRefPtr<XPathExpression> createExpression(const String& expression, XPathNSResolver*, ExceptionCode&);
48        ~XPathExpression();
49
50        PassRefPtr<XPathResult> evaluate(Node* contextNode, unsigned short type, XPathResult*, ExceptionCode&);
51
52    private:
53        explicit XPathExpression(std::unique_ptr<XPath::Expression>);
54
55        std::unique_ptr<XPath::Expression> m_topExpression;
56    };
57
58}
59
60#endif // XPathExpression_h
61