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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.

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/*
 * 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.
 */
package org.apache.html.dom;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.html.HTMLCollection;
import org.w3c.dom.html.HTMLElement;
import org.w3c.dom.html.HTMLOptionElement;
import org.w3c.dom.html.HTMLSelectElement;

/**
 * @xerces.internal
 * @version $Revision: 1029415 $ $Date: 2010-10-31 22:32:22 +0530 (Sun, 31 Oct 2010) $
 * @author Assaf Arkin
 * @see org.w3c.dom.html.HTMLSelectElement
 * @see org.apache.xerces.dom.ElementImpl
 */
public class HTMLSelectElementImpl
    extends HTMLElementImpl
    implements HTMLSelectElement, HTMLFormControl
{

    private static final long serialVersionUID = -6998282711006968187L; 

    public String getType()
    {
        return getAttribute( "type" );
    }

    
      public String getValue()
    {
        return getAttribute( "value" );
    }
    
    
    public void setValue( String value )
    {
        setAttribute( "value", value );
    }

    
    public int getSelectedIndex()
    {
        NodeList    options;
        int            i;
        
        // Use getElementsByTagName() which creates a snapshot of all the
        // OPTION elements under this SELECT. Access to the returned NodeList
        // is very fast and the snapshot solves many synchronization problems.
        // Locate the first selected OPTION and return its index. Note that
        // the OPTION might be under an OPTGROUP.
        options = getElementsByTagName( "OPTION" );
        for ( i = 0 ; i < options.getLength() ; ++i )
            if ( ( (HTMLOptionElement) options.item( i ) ).getSelected() )
                return i;
        return -1;
    }
    
    
    public void setSelectedIndex( int selectedIndex )
    {
        NodeList    options;
        int            i;
        
        // Use getElementsByTagName() which creates a snapshot of all the
        // OPTION elements under this SELECT. Access to the returned NodeList
        // is very fast and the snapshot solves many synchronization problems.
        // Change the select so all OPTIONs are off, except for the
        // selectIndex-th one.
        options = getElementsByTagName( "OPTION" );
        for ( i = 0 ; i < options.getLength() ; ++i )
            ( (HTMLOptionElementImpl) options.item( i ) ).setSelected( i == selectedIndex );
    }

  
    public HTMLCollection getOptions()
    {
        if ( _options == null )
            _options = new HTMLCollectionImpl( this, HTMLCollectionImpl.OPTION );
        return _options;
    }
    

    public int getLength()
    {
        return getOptions().getLength();
    }
    
    
    public boolean getDisabled()
    {
        return getBinary( "disabled" );
    }
    
    
    public void setDisabled( boolean disabled )
    {
        setAttribute( "disabled", disabled );
    }

    
      public boolean getMultiple()
    {
        return getBinary( "multiple" );
    }
    
    
    public void setMultiple( boolean multiple )
    {
        setAttribute( "multiple", multiple );
    }

  
      public String getName()
    {
        return getAttribute( "name" );
    }
    
    
    public void setName( String name )
    {
        setAttribute( "name", name );
    }

    
    public int getSize()
    {
        return getInteger( getAttribute( "size" ) );
    }
    
    
    public void setSize( int size )
    {
        setAttribute( "size", String.valueOf( size ) );
    }

  
    public int getTabIndex()
    {
        return getInteger( getAttribute( "tabindex" ) );
    }
    
    
    public void setTabIndex( int tabIndex )
    {
        setAttribute( "tabindex", String.valueOf( tabIndex ) );
    }

    
    public void add( HTMLElement element, HTMLElement before )
    {
        insertBefore( element, before );
    }
  
  
    public void remove( int index )
    {
        NodeList    options;
        Node        removed;
        
        // Use getElementsByTagName() which creates a snapshot of all the
        // OPTION elements under this SELECT. Access to the returned NodeList
        // is very fast and the snapshot solves many synchronization problems.
        // Remove the indexed OPTION from it's parent, this might be this
        // SELECT or an OPTGROUP.
        options = getElementsByTagName( "OPTION" );
        removed = options.item( index );
        if ( removed != null )
            removed.getParentNode().removeChild ( removed );
    }

  
    public void               blur()
    {
        // No scripting in server-side DOM. This method is moot.
    }
      
      
    public void               focus()
    {
        // No scripting in server-side DOM. This method is moot.
    }

    /**
     * Explicit implementation of getChildNodes() to avoid problems with
     * overriding the getLength() method hidden in the super class.
     */
    public NodeList getChildNodes() {
        return getChildNodesUnoptimized();
    }
    
    /**
     * Explicit implementation of cloneNode() to ensure that cache used
     * for getOptions() gets cleared.
     */
    public Node cloneNode(boolean deep) {
        HTMLSelectElementImpl clonedNode = (HTMLSelectElementImpl)super.cloneNode( deep );
        clonedNode._options = null;
        return clonedNode;
    }
  
    /**
     * Constructor requires owner document.
     * 
     * @param owner The owner HTML document
     */
    public HTMLSelectElementImpl( HTMLDocumentImpl owner, String name )
    {
        super( owner, name );
    }


    private HTMLCollection    _options;
  
  
}