/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the  "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#if !defined(XALAN_ELEMELEMENT_HEADER_GUARD)
#define XALAN_ELEMELEMENT_HEADER_GUARD 



// Base include file.  Must be first.
#include "XSLTDefinitions.hpp"



// Base class header file.
#include "ElemUse.hpp"



XALAN_CPP_NAMESPACE_BEGIN



class AVT;



class ElemElement: public ElemUse
{
public:

    /**
     * Construct an object corresponding to an "xsl:element" element
     * 
     * @param constructionContext context for construction of object
     * @param stylesheetTree      stylesheet containing element
     * @param atts                list of attributes for element
     * @param lineNumber                line number in document
     * @param columnNumber          column number in document
     */
    ElemElement(
            StylesheetConstructionContext&  constructionContext,
            Stylesheet&                     stylesheetTree,
            const AttributeListType&        atts,
            XalanFileLoc                    lineNumber,
            XalanFileLoc                    columnNumber);

    virtual
    ~ElemElement();

    // These methods are inherited from ElemUse ...

    virtual const XalanDOMString&
    getElementName() const;

#if !defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
    virtual const ElemTemplateElement*
    startElement(StylesheetExecutionContext&    executionContext) const;

    virtual void
    endElement(StylesheetExecutionContext&      executionContext) const;

    virtual bool 
    executeChildElement(
            StylesheetExecutionContext& executionContext,
            const ElemTemplateElement*  element) const;
#else
    virtual void 
    execute(StylesheetExecutionContext&     executionContext) const;
#endif

protected:

#if defined(XALAN_RECURSIVE_STYLESHEET_EXECUTION)
    /** 
     * Process the children of a template.
     * 
     * @param executionContext The current execution context
     * @param skipAttributeChildren If true, attribute children will not be executed.
     */
    virtual void
    doExecuteChildren(
            StylesheetExecutionContext&     executionContext,
            bool                            skipAttributeChildren) const;
#endif

    virtual void
    namespacesPostConstruction(
            StylesheetConstructionContext&  constructionContext,
            const NamespacesHandler&        theParentHandler,
            NamespacesHandler&              theHandler);

private:

    /** 
     * Do any necessary fixup for the default namespace
     * 
     * @param executionContext The current execution context
     */
    void
    fixupDefaultNamespace(StylesheetExecutionContext&   executionContext) const;

    /** 
     * Get the default namespace from the parent of this element.  Returns
     * an empty string if there's no default namespace.
     *
     * @return The default namespace of the parent, if any.
     */
    const XalanDOMString&
    getParentDefaultNamespace() const;


    // not implemented
    ElemElement(const ElemElement &);

    ElemElement&
    operator=(const ElemElement &);

    // Data members...
    const AVT*              m_nameAVT;

    const AVT*              m_namespaceAVT;
};



XALAN_CPP_NAMESPACE_END



#endif  // XALAN_ELEMELEMENT_HEADER_GUARD
