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 #ifndef XPathExpression_h

    28 #define XPathExpression_h

    29 

    30 #if ENABLE(XPATH)

    31 

    32 #include <wtf/RefCounted.h>

    33 #include <wtf/PassRefPtr.h>

    34 

    35 namespace WebCore {

    36 

    37     typedef int ExceptionCode;

    38 

    39     class Node;

    40     class String;

    41     class XPathNSResolver;

    42     class XPathResult;

    43 

    44     namespace XPath {

    45         class Expression;

    46     }

    47 

    48     class XPathExpression : public RefCounted<XPathExpression> {

    49     public:

    50         static PassRefPtr<XPathExpression> create() { return adoptRef(new XPathExpression); }

    51         ~XPathExpression();

    52         

    53         static PassRefPtr<XPathExpression> createExpression(const String& expression, XPathNSResolver*, ExceptionCode&);

    54         PassRefPtr<XPathResult> evaluate(Node* contextNode, unsigned short type, XPathResult*, ExceptionCode&);

    55             

    56     private:

    57         XPathExpression() { }

    58 

    59         XPath::Expression* m_topExpression;

    60     };

    61 

    62 }

    63 

    64 #endif // ENABLE(XPATH)

    65 

    66 #endif // XPathExpression_h