third_party/WebKit/Source/core/xml/DocumentXPathEvaluator.h

/*
 * Copyright (C) 2013, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 */

#ifndef DocumentXPathEvaluator_h
#define DocumentXPathEvaluator_h

#include "core/dom/Document.h"
#include "core/xml/XPathEvaluator.h"
#include "core/xml/XPathNSResolver.h"

namespace blink {

class ExceptionState;
class XPathExpression;
class XPathResult;

class DocumentXPathEvaluator final : public NoBaseWillBeGarbageCollected<DocumentXPathEvaluator>, public WillBeHeapSupplement<Document> {
    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DocumentXPathEvaluator);
    USING_FAST_MALLOC_WILL_BE_REMOVED(DocumentXPathEvaluator);
public:
    static DocumentXPathEvaluator& from(WillBeHeapSupplementable<Document>&);

    static XPathExpression* createExpression(WillBeHeapSupplementable<Document>&,
        const String& expression, XPathNSResolver*, ExceptionState&);
    static XPathNSResolver* createNSResolver(WillBeHeapSupplementable<Document>&, Node* nodeResolver);
    static XPathResult* evaluate(WillBeHeapSupplementable<Document>&,
        const String& expression, Node* contextNode, XPathNSResolver*,
        unsigned short type, const ScriptValue&, ExceptionState&);

    DECLARE_VIRTUAL_TRACE();

private:
    DocumentXPathEvaluator();

    static const char* supplementName() { return "DocumentXPathEvaluator"; }

    PersistentWillBeMember<XPathEvaluator> m_xpathEvaluator;
};

} // namespace blink

#endif // DocumentXPathEvaluator_h