content: package com.japisoft.xmlpad.helper.handler.schema.dtd;
  
  import com.japisoft.dtdparser.node.ElementDTDNode;
  import com.japisoft.dtdparser.node.RootDTDNode;
  import com.japisoft.framework.xml.parser.node.FPNode;
  import com.japisoft.xmlpad.helper.handler.schema.AbstractTagHandler;
  import com.japisoft.xmlpad.helper.model.SchemaNodable;
  import com.japisoft.xmlpad.helper.model.SchemaNode;
  import com.japisoft.xmlpad.helper.model.TagDescriptor;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class DTDTagHandler extends AbstractTagHandler 
  		implements SchemaNodable {
  	private RootDTDNode root;
  	private String rootElement;
  
  	public DTDTagHandler( 
  			String rootElement, 
  			RootDTDNode root ) {
  		this.root = root;
  		this.rootElement = rootElement;
  	}
  
  	public void dispose() {
  		super.dispose();
  		this.root = null;
  	}	
  
  	public TagDescriptor getTag( FPNode node ) {
  		if ( node == null )
  			return null;
  		String name = node.getContent();
  		ElementDTDNode element = root.getElementDeclaration( name );
  		if ( element != null )
  			return new DTDTagDescriptor( element );
  		return null;
  	}
  
  	protected void notifyLocation() {
  
  		if ( root == null )
  			return;
  
  		schemaNode = null;
  		
  		if ( currentDocumentNode == null ) {
  			// Add the rootElement
  
  			if ( rootElement != null ) {
  				ElementDTDNode node = root.getElementDeclaration( rootElement );
  				if ( node != null ) {
  					addTagDescriptor( new DTDTagDescriptor( node ) );
  				}
  			}
  
  			return;
  		}
  
  		String name = currentDocumentNode.getContent();
  		
  		// Search for the DTD declaration
  
  		ElementDTDNode node = root.getElementDeclaration( name );
  
  		if ( node == null || 
  				node.isEmptyElement() || 
  					node.hasPCDATA() )
  			return;
  
  		schemaNode = ( new DTDToSchemaNode() ).getSchemaNode( node );
  	}
  
  	protected void completeContentForElementWithoutPrefix() {
  		super.completeContentForElementWithoutPrefix();
  		if ( rootElement != null && rootElement.indexOf( ":" ) > 0 ) {
  			for ( int i = 0; i < root.getDTDNodeCount(); i++ ) {
  				if ( root.getDTDNodeAt( i ).isElement() ) {
  					ElementDTDNode node = (ElementDTDNode)root.getDTDNodeAt( i );
  					if ( node.getName().indexOf( ":" ) == -1 )
  						addTagDescriptor( new DTDTagDescriptor( node ) );
  				}
  			}
  		}
  	}
  	
  	private SchemaNode schemaNode = null;
  
  	public SchemaNode getSchemaNode() {
  		return schemaNode;
  	}
  
  }
  