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

import org.litesoft.core.util.*;

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

public class ListTable extends ImprovedGrid
{
    private ObjectCommand<Integer> mClickCommand;

    public ListTable()
    {
        this( null );
    }

    public ListTable( ObjectCommand<Integer> pClickCommand )
    {
        super( 0, 1 );
        mClickCommand = pClickCommand;
        setCellPadding( 0 );
        setCellSpacing( 0 );
        EventHandler handler = new EventHandler();
        addClickHandler( handler );
        addMouseOverHandler( handler );
        addMouseOutHandler( handler );
    }

    public void setData( String[] pData )
    {
        resizeRows( pData.length );
        for ( int row = 0; row < pData.length; row++ )
        {
            // Does not currently allow for interpretation of data flavors
            setText( row, 0, pData[row] );
            UIObject.setStylePrimaryName( getCellFormatter().getElement( row, 0 ), "gwt-Label" );
        }
    }

    public void setClickCommand( ObjectCommand<Integer> pCommand )
    {
        mClickCommand = pCommand;
    }

    private class EventHandler implements ClickHandler,
                                          MouseOverHandler,
                                          MouseOutHandler
    {
        private int mHilightedRow = -1;

        @Override
        public void onClick( ClickEvent pEvent )
        {
            int row = getRowForEvent( pEvent );
            mClickCommand.execute( row );
        }

        @Override
        public void onMouseOver( MouseOverEvent pEvent )
        {
            int row = getRowForEvent( pEvent );
            updateHighlightedRow( row );
        }

        @Override
        public void onMouseOut( MouseOutEvent pEvent )
        {
            updateHighlightedRow( -1 );
        }

        private void updateHighlightedRow( int pRow )
        {
            if ( mHilightedRow != pRow )
            {
                RowFormatter rowFormatter = getRowFormatter();
                if ( mHilightedRow != -1 )
                {
                    Element tr = rowFormatter.getElement( mHilightedRow );
                    UIObject.setStyleName( tr, "highlighted", false );
                }
                mHilightedRow = pRow;
                if ( mHilightedRow != -1 )
                {
                    Element tr = rowFormatter.getElement( mHilightedRow );
                    UIObject.setStyleName( tr, "highlighted", true );
                }
            }
        }
    }
}