/*
* Copyright 2011 Marc Grue.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
*
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.qi4j.sample.dcicargo.sample_b.communication.web.booking;
import java.util.Date;
import java.util.List;
import org.apache.wicket.Session;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior;
import org.apache.wicket.ajax.markup.html.form.AjaxFallbackButton;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.panel.ComponentFeedbackPanel;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.joda.time.LocalDate;
import org.qi4j.sample.dcicargo.sample_b.communication.query.CommonQueries;
import org.qi4j.sample.dcicargo.sample_b.context.interaction.booking.BookNewCargo;
import org.qi4j.sample.dcicargo.sample_b.data.structure.tracking.TrackingId;
import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.form.AbstractForm;
import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.form.DateTextFieldWithPicker;
import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.form.SelectorInForm;
import org.qi4j.sample.dcicargo.sample_b.infrastructure.wicket.prevnext.PrevNext;
/**
* Book new cargo
*
* An example of UI validation:
* - you can't choose equal locations
* - earliest deadline you can choose from the date picker is tomorrow (we could set any date that the domain wants).
*
* More elaborate validation rules could be enforced in a real domain to avoid even touching
* the backend with invalid data (of course we would still need backend validation).
*/
public class BookNewCargoPage extends BookingBasePage
{
public BookNewCargoPage()
{
add( new BookNewCargoForm() );
}
private final class BookNewCargoForm extends AbstractForm<Void>
{
// Set by Wicket property resolvers:
private String origin, destination;
private Date deadline;
public BookNewCargoForm()
{
List<String> locations = new CommonQueries().unLocodes();
final FeedbackPanel feedback = new FeedbackPanel( "feedback" );
add( feedback.setOutputMarkupId( true ) );
final SelectorInForm originSelector = new SelectorInForm(
"origin", "Origin", locations, this, "destination" );
originSelector.setRequired( true );
final ComponentFeedbackPanel originFeedback = new ComponentFeedbackPanel(
"originFeedback", originSelector );
add( originFeedback.setOutputMarkupId( true ) );
final SelectorInForm destinationSelector = new SelectorInForm(
"destination", "Destinatin", locations, this, "origin" );
destinationSelector.setRequired( true );
final ComponentFeedbackPanel destinationFeedback = new ComponentFeedbackPanel(
"destinationFeedback", destinationSelector );
add( destinationFeedback.setOutputMarkupId( true ) );
// Disable equal locations
originSelector.add( new AjaxFormComponentUpdatingBehavior( "onchange" )
{
@Override
protected void onUpdate( AjaxRequestTarget target )
{
// Exclude origin in destination drop down
target.add( originSelector, originFeedback, destinationSelector );
focusFirstError( target );
}
} );
destinationSelector.add( new AjaxFormComponentUpdatingBehavior( "onchange" )
{
@Override
protected void onUpdate( AjaxRequestTarget target )
{
// Exclude destination in origin drop down
target.add( destinationSelector, destinationFeedback, originSelector );
focusFirstError( target );
}
} );
// Deadline
final DateTextFieldWithPicker deadlineField = new DateTextFieldWithPicker( "deadline", "Arrival deadline", this );
deadlineField.earliestDate( new LocalDate().plusDays( 1 ) );
final ComponentFeedbackPanel deadlineFeedback = new ComponentFeedbackPanel(
"deadlineFeedback", deadlineField );
add( deadlineFeedback.setOutputMarkupId( true ) );
add( originSelector, destinationSelector, deadlineField );
add( new AjaxFallbackButton( "book", this )
{
@Override
protected void onSubmit( AjaxRequestTarget target, Form<?> form )
{
try
{
// Perform use case
TrackingId trackingId = new BookNewCargo( origin, destination, deadline ).getTrackingId();
// Add new tracking id to list in session
PrevNext.addId( Session.get(), trackingId.id().get() );
// Show created cargo
setResponsePage( CargoDetailsPage.class, new PageParameters().set( 0, trackingId.id().get() ) );
}
catch( Exception e )
{
logger.warn( "Problem booking a new cargo: " + e.getMessage() );
feedback.error( e.getMessage() );
target.add( feedback );
}
}
@Override
protected void onError( final AjaxRequestTarget target, Form<?> form )
{
target.add( originFeedback, destinationFeedback, deadlineFeedback );
focusFirstError( target );
}
} );
}
}
}