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      1 /*
      2  * Copyright 2005 Frerich Raabe <raabe (at) 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 XPathEvaluator_h
     28 #define XPathEvaluator_h
     29 
     30 #include "bindings/v8/ScriptWrappable.h"
     31 #include "wtf/Forward.h"
     32 #include "wtf/PassRefPtr.h"
     33 #include "wtf/RefCounted.h"
     34 
     35 namespace WebCore {
     36 
     37 class ExceptionState;
     38 class Node;
     39 class XPathExpression;
     40 class XPathNSResolver;
     41 class XPathResult;
     42 
     43 class XPathEvaluator : public RefCounted<XPathEvaluator>, public ScriptWrappable {
     44 public:
     45     static PassRefPtr<XPathEvaluator> create() { return adoptRef(new XPathEvaluator); }
     46 
     47     PassRefPtr<XPathExpression> createExpression(const String& expression, XPathNSResolver*, ExceptionState&);
     48     PassRefPtr<XPathNSResolver> createNSResolver(Node* nodeResolver);
     49     PassRefPtr<XPathResult> evaluate(const String& expression, Node* contextNode,
     50         XPathNSResolver*, unsigned short type, XPathResult*, ExceptionState&);
     51 
     52 private:
     53     XPathEvaluator()
     54     {
     55         ScriptWrappable::init(this);
     56     }
     57 };
     58 
     59 }
     60 
     61 #endif // XPathEvaluator_h
     62