package org.litesoft.sandbox.multimodule.common.client.infrastructure;

import com.google.gwt.safehtml.shared.*;
import com.google.gwt.user.client.ui.*;

/**
 * A Label that ALWAYS contains something and preserves spaces and escapes all HTML.
 * <p/>
 * Note: while it extends an HTML widget, you may NOT set the HTML, only the text!
 */
public class OurLabel extends HTML implements StyledSafeTextSink
{
    public OurLabel()
    {
        this( null );
    }

    public OurLabel( String text )
    {
        setText( text );
    }

    @Override
    public void setText( String text )
    {
        super.setHTML( SafeHtmlizer.getInstance().noEmpty1stLine( text ).asString() );
    }

    @Override
    public void setText( String text, Direction dir )
    {
        super.setHTML( SafeHtmlizer.getInstance().noEmpty1stLine( text ), dir );
    }

    @Override
    public void setHTML( String html )
    {
        unsupported();
    }

    @Override
    public void setHTML( String html, Direction dir )
    {
        unsupported();
    }

    @Override
    public void setHTML( SafeHtml html )
    {
        unsupported();
    }

    @Override
    public void setHTML( SafeHtml html, Direction dir )
    {
        unsupported();
    }

    private void unsupported()
    {
        throw new UnsupportedOperationException( "setting HTML directly NOT support on OurLabel - use setText()" );
    }
}