package org.eclipse.jst.pagedesigner.dom;

import org.eclipse.jst.pagedesigner.utils.CMUtil;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.w3c.dom.Element;

/**
 * A tag wrapper for a DOM element.  This element may or may not be a JSP tag,
 * but must be contained in a DOM tree.
 * 
 * @author cbateman
 *
 */
/*package*/ class DocumentTagIdentifier extends TagIdentifier 
{
    private final Element  _element;
    
    public DocumentTagIdentifier(Element element)
    {
        _element = element;
    }
    
    public String getTagName() 
    {
        return _element.getLocalName();
    }

    public String getUri() {
        String uri = CMUtil.getElementNamespaceURI(_element);
        
        // give the content model priority
        if (uri == null)
        {
            uri = _element.getNamespaceURI();
        }
        
        return uri;
    }

    public boolean isJSPTag() {
        CMElementDeclaration elemDecl = getElementDeclaration();
        
        if (elemDecl != null)
        {
            return CMUtil.isJSP(elemDecl);
        }
        
        return false;
    }

    protected final CMElementDeclaration getElementDeclaration()
    {
        return CMUtil.getElementDeclaration(_element);
    }
}