DocList.java

package com.rectang.xsm.doc;

import com.rectang.xsm.site.DocumentPage;
import com.rectang.xsm.io.XSMDocument;
import com.rectang.xsm.UserData;

import java.util.*;

import org.jdom.Element;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.panel.Panel;

public class DocList
        extends DocElement
{

    public DocElement[] elements;

    public DocList( String name, DocElement[] elements )
    {
        super( name );
        this.elements = elements;
    }

    public void view( Element node, StringBuffer s )
    {
        for ( int i = 0; i < elements.length; i++ )
        {
            if ( elements[i] != null && node != null )
            {
                elements[i].view( node.getChild( elements[i].getName() ), s );
                s.append( "<br />\n" );
            }
        }
    }

    public void publish( Element node, StringBuffer s )
    {
        for ( int i = 0; i < elements.length; i++ )
        {
            if ( elements[i] != null && node != null )
            {
                elements[i].publish( node.getChild( elements[i].getName() ), s );
                s.append( "<br />\n" );
            }
        }
    }

    public WebMarkupContainer edit( String wicketId, final Element node, final String path )
    {
        return edit( wicketId, node, path, null );
    }

    public WebMarkupContainer edit( String wicketId, final Element node, final String path, final String hint )
    {
        Panel ret = new ListPanel( wicketId, node, path, hint );

        return ret;
    }

    public void create( Element node )
    {
        Element created;
        for ( int i = 0; i < elements.length; i++ )
        {
            node.addContent( created = new Element( elements[i].getName() ) );
            elements[i].create( created );
        }
    }

    public void destroy( Element node )
    {
        for ( int i = 0; i < elements.length; i++ )
        {
            if ( elements[i] != null && node != null )
            {
                elements[i].destroy( node.getChild( elements[i].getName() ) );
            }
        }
    }

    public DocElement getElement( String name )
    {
        for ( int i = 0; i < elements.length; i++ )
        {
            if ( elements[i].getName().equals( name ) )
            {
                return elements[i];
            }
        }
        return null;
    }
  
  /* methods needed to copy root data to all children in the list */

    public void setUser( UserData user )
    {
        super.setUser( user );
        for ( int i = 0; i < elements.length; i++ )
        {
            elements[i].setUser( user );
        }
    }

    public void setPage( DocumentPage page )
    {
        super.setPage( page );
        for ( int i = 0; i < elements.length; i++ )
        {
            elements[i].setPage( page );
        }
    }

    public void setDoc( XSMDocument doc )
    {
        super.setDoc( doc );
        for ( int i = 0; i < elements.length; i++ )
        {
            elements[i].setDoc( doc );
        }
    }

    public List getSupportedOptions()
    {
        Vector ret = new Vector();
        for ( int i = 0; i < elements.length; i++ )
        {
            ret.addAll( elements[i].getSupportedOptions() );
        }

        return ret;
    }

    class ListPanel
            extends Panel
    {
        public ListPanel( final String wicketId, final Element node, final String path, final String hint )
        {
            super( wicketId );
            add( new Label( "hint", hint ).setVisible( hint != null ) );

            // TODO don't reconstruct this all the time
            List elementList = Arrays.asList( elements );

            add( new ListView( "elements", elementList )
            {
                protected void populateItem( ListItem listItem )
                {
                    DocElement elem = (DocElement) listItem.getModelObject();
                    if ( elem == null || node == null )
                    {
                        listItem.add( new WebMarkupContainer( "content" ) );
                        listItem.setVisible( false );
                        return;
                    }

                    listItem.add( elem.edit( "content", node.getChild( elem.getName() ),
                            path + "/" + elem.getName() + "@" + listItem.getIndex() ) );
                }
            } );
        }
    }
}