package com.gwtmobile.ui.kitchensink.client.communication;

import com.google.gwt.core.client.*;
import com.google.gwt.uibinder.client.*;
import com.google.gwt.user.client.rpc.*;
import com.google.gwt.user.client.ui.*;
import com.gwtmobile.ui.client.event.*;
import com.gwtmobile.ui.client.page.*;

public class RpcPage extends Page
{

    private static RpcPageUiBinder uiBinder = GWT.create( RpcPageUiBinder.class );

    @UiField HTML text;

    interface RpcPageUiBinder extends UiBinder<Widget, RpcPage>
    {
    }

    public RpcPage()
    {
        initWidget( uiBinder.createAndBindUi( this ) );
    }

    @UiHandler("list") void onListSelectionChanged( SelectionChangedEvent e )
    {
        switch ( e.getSelection() )
        {
            case 0:
                makeRpcCall();
                break;
        }
    }

    private void makeRpcCall()
    {
        final RpcServiceAsync greetingService = GWT.create( RpcService.class );

        //The code below sets service entry point to a server url.
        ServiceDefTarget service = (ServiceDefTarget) greetingService;
        String address = "http://gwtmobile-services.appspot.com/rpc";
        service.setServiceEntryPoint( address );

        greetingService.greetServer( "GWT Mobile UI", new AsyncCallback<String>()
        {
            @Override
            public void onSuccess( String result )
            {
                text.setHTML( result );
            }

            @Override
            public void onFailure( Throwable caught )
            {
                text.setHTML( caught.getMessage() );
            }
        } );
    }
}