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120 lines
3.7 KiB
C++
120 lines
3.7 KiB
C++
/*
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* dom3_xpathimpl.h - Copyright 2005 Frerich Raabe <raabe@kde.org>
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* Copyright 2010 Maksim Orlovich <maksim@kde.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef XPATHRESULTIMPL_H
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#define XPATHRESULTIMPL_H
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#include "misc/shared.h"
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#include "xpath/expression.h"
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#include "xpath/parsedstatement.h"
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namespace DOM {
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class DOMStringImpl;
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class NodeImpl;
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}
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namespace khtml {
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class XPathNSResolverImpl;
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class XPathResultImpl : public Shared<XPathResultImpl>
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{
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public:
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XPathResultImpl();
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XPathResultImpl( const XPath::Value &value );
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void convertTo( unsigned short type, int &exceptioncode );
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unsigned short resultType() const;
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double numberValue( int &exceptioncode ) const;
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DOM::DOMString stringValue( int &exceptioncode ) const;
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bool booleanValue( int &exceptioncode ) const;
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DOM::NodeImpl *singleNodeValue( int &exceptioncode ) const;
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bool invalidIteratorState() const;
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unsigned long snapshotLength( int &exceptioncode ) const;
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DOM::NodeImpl *iterateNext( int &exceptioncode );
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DOM::NodeImpl *snapshotItem( unsigned long index, int &exceptioncode );
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private:
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XPath::Value m_value;
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unsigned long m_nodeIterator;
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unsigned short m_resultType;
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};
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class XPathExpressionImpl : public Shared<XPathExpressionImpl>
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{
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public:
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XPathExpressionImpl( const DOM::DOMString &expression,
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XPathNSResolverImpl *resolver );
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// expression we got while parsing, or 0
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int parseExceptionCode();
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XPathResultImpl *evaluate( DOM::NodeImpl *contextNode,
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unsigned short type,
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XPathResultImpl *result,
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int &exceptioncode );
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private:
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XPath::ParsedStatement m_statement;
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};
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// This is the base class for resolver interfaces
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class XPathNSResolverImpl : public khtml::Shared<XPathNSResolverImpl>
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{
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public:
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enum Type {
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Default,
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JS,
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CPP
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};
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virtual DOM::DOMString lookupNamespaceURI( const DOM::DOMString& prefix ) = 0;
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virtual Type type() = 0;
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virtual ~XPathNSResolverImpl() {}
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};
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// This is the default implementation, used by createNSResolver
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class DefaultXPathNSResolverImpl : public XPathNSResolverImpl
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{
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public:
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DefaultXPathNSResolverImpl( DOM::NodeImpl *node );
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virtual DOM::DOMString lookupNamespaceURI( const DOM::DOMString& prefix );
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virtual Type type() { return Default; }
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private:
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SharedPtr<DOM::NodeImpl> m_node;
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};
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} // namespace khtml
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#endif // XPATHRESULTIMPL_H
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// kate: indent-width 4; replace-tabs off; tab-width 4; space-indent off;
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