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;
        
        public void onClick(ClickEvent pEvent)
        {
            int row = getRowForEvent(pEvent);
            mClickCommand.execute(row);
        }
        
        public void onMouseOver(MouseOverEvent pEvent)
        {
            int row = getRowForEvent(pEvent);
            updateHighlightedRow(row);
        }
        
        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);
                }
            }
        }
    }
}