package org.litesoft.GWT.client.widgets;

import org.litesoft.GWT.client.command.*;
import org.litesoft.core.util.*;
import org.litesoft.uispecification.*;

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

public class NextButton extends GreenButton
{
    private static final String TBODY_CLASS_2 = "Next";

    public NextButton( String pText, String pEnabledToolTip, ClickHandler pHandler )
    {
        super( 0, TBODY_CLASS_2, pText, 12, pEnabledToolTip, "", pHandler );
    }

    public NextButton( ViewDef pViewDef, ClickHandler pHandler )
    {
        this( "Next", (pViewDef == null) ? "" : "Advance to the " + pViewDef.getUiString() + " step", pHandler );
    }

    public NextButton( ClickHandler pHandler )
    {
        this( null, pHandler );
    }

    public NextButton( final ViewDef pTarget )
    {
        this( pTarget, createClickHandler( pTarget ) );
    }

    public NextButton( final ViewDef pTarget, UriFragmentIdParams.ScreenParamsFactory pFactory )
    {
        this( pTarget, createClickHandler( pTarget, pFactory ) );
    }

    private static ClickHandler createClickHandler( final ViewDef pTarget )
    {
        UtilsCommon.assertNotNull( "Target (ViewDef)", pTarget );
        return new ClickHandler()
        {
            public void onClick( ClickEvent event )
            {
                new ShowScreenCommand( pTarget ).execute();
            }
        };
    }

    private static ClickHandler createClickHandler( final ViewDef pTarget, final UriFragmentIdParams.ScreenParamsFactory pFactory )
    {
        UtilsCommon.assertNotNull( "Target (ViewDef)", pTarget );
        UtilsCommon.assertNotNull( "Factory", pFactory );
        return new ClickHandler()
        {
            public void onClick( ClickEvent event )
            {
                new ShowScreenCommand( pTarget, pFactory.create( pTarget ) ).execute();
            }
        };
    }
}