// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.client.widgets;

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

public abstract class FloaterTitleBar extends SizeableVerticalPanel
{
    private CustomHorizontal mCustomHorizontal = new CustomHorizontal();

    public FloaterTitleBar()
    {
        LLstretchableHorizontally();
        super.add( mCustomHorizontal );
        super.add( new SizeableSpacer( 3 ).stretchableHorizontally() );
    }

    @Override
    public void add( Widget pWidget )
    {
        mCustomHorizontal.add( pWidget );
    }

    abstract public String getTitleBarTitle();

    abstract public void setTitleBarTitle( String pTitle );

    public void hide()
    {
        mCustomHorizontal.setVisible( false );
    }

    public void unhide()
    {
        mCustomHorizontal.setVisible( true );
    }

    private static class CustomHorizontal extends SizeableHorizontalPanel
    {
        private boolean mHidden = false;

        public CustomHorizontal()
        {
            stretchableHorizontally();
            setVerticalAlignment( ALIGN_MIDDLE );
            add( new Spacer( 1 ) );
        }

        @Override
        public void setWidth( String pWidth )
        {
            if ( !mHidden )
            {
                super.setWidth( pWidth );
            }
        }

        @Override
        public void setVisible( boolean pVisible )
        {
            if ( !pVisible )
            {
                super.setWidth( "1" );
                mHidden = true;
            }
            else
            {
                mHidden = false;
                Element zParent = DOM.getParent( getElement() );
                super.setWidth( "" + zParent.getOffsetWidth() );
            }
        }
    }
}