Java tutorial
/* * Copyright 2013 ArcBees Inc. * * 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.javahispano.javaleague.client.application.cars.car; import java.util.List; import javax.inject.Inject; import org.javahispano.javaleague.client.application.cars.car.CarPresenter.MyView; import org.javahispano.javaleague.client.application.cars.car.widget.CarPropertiesEditor; import org.javahispano.javaleague.client.application.manufacturer.ui.ManufacturerRenderer; import org.javahispano.javaleague.shared.dto.CarDto; import org.javahispano.javaleague.shared.dto.ManufacturerDto; import com.google.gwt.editor.client.Editor; import com.google.gwt.editor.client.SimpleBeanEditorDriver; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.ValueListBox; import com.google.gwt.user.client.ui.Widget; import com.gwtplatform.mvp.client.ViewWithUiHandlers; public class CarView extends ViewWithUiHandlers<CarUiHandlers> implements MyView, Editor<CarDto> { interface Binder extends UiBinder<Widget, CarView> { } interface Driver extends SimpleBeanEditorDriver<CarDto, CarView> { } @UiField(provided = true) final ValueListBox<ManufacturerDto> manufacturer; @UiField(provided = true) final CarPropertiesEditor carProperties; @UiField TextBox model; private final Driver driver; @Inject CarView(Binder uiBinder, Driver driver, CarPropertiesEditor carProperties) { this.driver = driver; this.carProperties = carProperties; manufacturer = new ValueListBox<>(new ManufacturerRenderer()); initWidget(uiBinder.createAndBindUi(this)); driver.initialize(this); } @Override public void edit(CarDto carDto) { if (carDto.getManufacturer() == null) { carDto.setManufacturer(manufacturer.getValue()); } driver.edit(carDto); } @Override public void setAllowedManufacturers(List<ManufacturerDto> manufacturerDtos) { manufacturer.setValue(manufacturerDtos.isEmpty() ? null : manufacturerDtos.get(0)); manufacturer.setAcceptableValues(manufacturerDtos); } @Override public void resetFields(CarDto carDto) { driver.edit(carDto); } @Override public void getCar() { } @UiHandler("save") void onSaveClicked(ClickEvent ignored) { getUiHandlers().onSave(driver.flush()); } @UiHandler("close") void onCancelClicked(ClickEvent ignored) { getUiHandlers().onCancel(); } }