HelloDialogController.java

/*******************************************************************************
 * Copyright (c) 2007, 2014 compeople AG and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    compeople AG - initial API and implementation
 *******************************************************************************/
package org.eclipse.riena.example.client.controllers;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.ChangeEvent;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.databinding.observable.list.WritableList;
import org.eclipse.core.runtime.Assert;

import org.eclipse.riena.beans.common.AbstractBean;
import org.eclipse.riena.example.client.application.ExampleIcons;
import org.eclipse.riena.ui.core.marker.ErrorMessageMarker;
import org.eclipse.riena.ui.core.marker.MandatoryMarker;
import org.eclipse.riena.ui.ridgets.IActionRidget;
import org.eclipse.riena.ui.ridgets.IMultipleChoiceRidget;
import org.eclipse.riena.ui.ridgets.ISingleChoiceRidget;
import org.eclipse.riena.ui.ridgets.IStatuslineRidget;
import org.eclipse.riena.ui.ridgets.ITextRidget;
import org.eclipse.riena.ui.ridgets.annotation.OnActionCallback;
import org.eclipse.riena.ui.ridgets.annotation.OnActionCallbacks;
import org.eclipse.riena.ui.ridgets.controller.AbstractWindowController;
import org.eclipse.riena.ui.ridgets.marker.StatuslineMessageMarkerViewer;
import org.eclipse.riena.ui.ridgets.swt.views.AbstractDialogView;

/**
 * The controller for the hello dialog of the dialog example.
 */
public class HelloDialogController extends AbstractWindowController {

	private static final ErrorMessageMarker TOO_EXPENSIVE_MARKER = new ErrorMessageMarker("The car is too expensive!"); //$NON-NLS-1$

	private final String[] carPlates = { "JM5B0ND", "1 SPY", "MNY PNY", "BN D07", "Q RULE2", "MI64EVR" }; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
	private ISingleChoiceRidget compositeCarModel;
	private ISingleChoiceRidget compositeCarWarranty;
	private IMultipleChoiceRidget compositeCarPlates;
	private IMultipleChoiceRidget compositeCarExtras;
	private CarConfig carConfig;

	@SuppressWarnings("unchecked")
	@Override
	public void configureRidgets() {
		super.configureRidgets();

		getWindowRidget().setTitle("James' Car Configurator"); //$NON-NLS-1$
		getWindowRidget().setIcon(ExampleIcons.ICON_SAMPLE);

		carConfig = new CarConfig();

		compositeCarModel = getRidget(ISingleChoiceRidget.class, "compositeCarModel"); //$NON-NLS-1$
		compositeCarModel.bindToModel(toList(CarModels.values()), BeansObservables.observeValue(carConfig, CarConfig.PROP_MODEL));
		compositeCarModel.addMarker(new MandatoryMarker());
		compositeCarModel.updateFromModel();

		compositeCarExtras = getRidget(IMultipleChoiceRidget.class, "compositeCarExtras"); //$NON-NLS-1$
		final String[] labels = { "Front Machine Guns", "Self Destruct Button", "Underwater Package", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
				"Park Distance Control System", }; //$NON-NLS-1$
		compositeCarExtras.bindToModel(toList(CarOptions.values()), Arrays.asList(labels), carConfig, CarConfig.PROP_OPTIONS);
		compositeCarExtras.updateFromModel();

		compositeCarWarranty = getRidget(ISingleChoiceRidget.class, "compositeCarWarranty"); //$NON-NLS-1$
		compositeCarWarranty.bindToModel(toList(CarWarranties.values()), BeansObservables.observeValue(carConfig, CarConfig.PROP_WARRANTY));
		compositeCarWarranty.addMarker(new MandatoryMarker());
		compositeCarWarranty.updateFromModel();

		compositeCarPlates = getRidget(IMultipleChoiceRidget.class, "compositeCarPlates"); //$NON-NLS-1$
		compositeCarPlates.bindToModel(toList(carPlates), PojoObservables.observeList(carConfig, CarConfig.PROP_PLATES));
		compositeCarPlates.addMarker(new MandatoryMarker());
		compositeCarPlates.updateFromModel();

		final ITextRidget txtPrice = getRidget(ITextRidget.class, "txtPrice"); //$NON-NLS-1$
		txtPrice.setOutputOnly(true);
		txtPrice.addMarker(TOO_EXPENSIVE_MARKER);
		final DataBindingContext dbc = new DataBindingContext();
		dbc.bindValue(BeansObservables.observeValue(txtPrice, ITextRidget.PROPERTY_TEXT), BeansObservables.observeValue(carConfig, CarConfig.PROP_PRICE), null,
				null);
		BeansObservables.observeValue(carConfig, CarConfig.PROP_PRICE).addChangeListener(new IChangeListener() {
			public void handleChange(final ChangeEvent event) {
				if (carConfig.getPrice() > 200000) {
					txtPrice.addMarker(TOO_EXPENSIVE_MARKER);
				} else {
					txtPrice.removeMarker(TOO_EXPENSIVE_MARKER);
				}
			}
		});

		final IActionRidget buttonPreset = getRidget(IActionRidget.class, "buttonPreset"); //$NON-NLS-1$
		buttonPreset.setText("&Quick Config"); //$NON-NLS-1$

		final IActionRidget buttonReset = getRidget(IActionRidget.class, "buttonReset"); //$NON-NLS-1$
		buttonReset.setText("&Reset"); //$NON-NLS-1$

		final IStatuslineRidget statuslineRidget = getRidget(IStatuslineRidget.class, AbstractDialogView.STATUSLINE_BINDING_ID);
		final StatuslineMessageMarkerViewer statuslineMessageMarkerViewer = new StatuslineMessageMarkerViewer(statuslineRidget);
		statuslineMessageMarkerViewer.addRidget(txtPrice);

	}

	public CarConfig getCarConfig() {
		return carConfig;
	}

	@OnActionCallback(ridgetId = "buttonPreset")
	public void onPreset() {
		compositeCarModel.setSelection(CarModels.BMW);
		compositeCarExtras.setSelection(Arrays.asList(new CarOptions[] { CarOptions.PDCS }));
		compositeCarWarranty.setSelection(CarWarranties.EXTENDED);
		compositeCarPlates.setSelection(Arrays.asList(new String[] { carPlates[0] }));
	}

	@OnActionCallback(ridgetId = "buttonReset")
	public void onReset() {
		carConfig.reset();
		compositeCarModel.updateFromModel();
		compositeCarExtras.updateFromModel();
		compositeCarWarranty.updateFromModel();
		compositeCarPlates.updateFromModel();
	}

	@SuppressWarnings("unused")
	@OnActionCallbacks({ @OnActionCallback(ridgetId = "buttonPreset"), @OnActionCallback(ridgetId = "buttonReset") })
	private void demonstrateMutlipleOnActionCallbacksAnnotation() {
		System.out.println("Demonstrate multiple @OnActionCallback annotations!"); //$NON-NLS-1$
	}

	// helping methods
	// ////////////////

	private WritableList toList(final Object[] values) {
		return new WritableList(Arrays.asList(values), Object.class);
	}

	// helping classes
	// ////////////////

	/**
	 * Bean that holds a single car configuration composed of: model, option(s), warranty, plate(s).
	 */
	public static final class CarConfig extends AbstractBean {
		public static final String PROP_MODEL = "model"; //$NON-NLS-1$
		public static final String PROP_OPTIONS = "options"; //$NON-NLS-1$
		public static final String PROP_WARRANTY = "warranty"; //$NON-NLS-1$
		public static final String PROP_PLATES = "plates"; //$NON-NLS-1$
		public static final String PROP_PRICE = "price"; //$NON-NLS-1$

		private CarModels model;
		private List<CarOptions> options = new ArrayList<CarOptions>();
		private CarWarranties warranty;
		private List<String> plates = new ArrayList<String>();

		public CarModels getModel() {
			return model;
		}

		public void setModel(final CarModels model) {
			firePropertyChanged(PROP_MODEL, this.model, this.model = model);
			firePropertyChanged(PROP_PRICE, null, getPrice());
		}

		public List<CarOptions> getOptions() {
			return Collections.unmodifiableList(options);
		}

		public void setOptions(final List<CarOptions> options) {
			firePropertyChanged(PROP_OPTIONS, this.options, this.options = new ArrayList<CarOptions>(options));
			firePropertyChanged(PROP_PRICE, null, getPrice());
		}

		public CarWarranties getWarranty() {
			return warranty;
		}

		public void setWarranty(final CarWarranties warranty) {
			firePropertyChanged(PROP_WARRANTY, this.warranty, this.warranty = warranty);
			firePropertyChanged(PROP_PRICE, null, getPrice());
		}

		public List<String> getPlates() {
			return Collections.unmodifiableList(plates);
		}

		public void setPlates(final List<String> plates) {
			firePropertyChanged(PROP_PLATES, this.plates, this.plates = new ArrayList<String>(plates));
			firePropertyChanged(PROP_PRICE, null, getPrice());
		}

		public void reset() {
			setModel(null);
			setOptions(new ArrayList<CarOptions>());
			setWarranty(null);
			setPlates(new ArrayList<String>());
		}

		public long getPrice() {
			long price = 0;
			if (model != null) {
				price += 100000;
			}
			price += options.size() * 25000L;
			if (warranty == CarWarranties.EXTENDED) {
				price += 10000;
			}
			price += plates.size() * 200L;
			return price;
		}
	}

	public enum CarModels {
		ASTON_MARTIN("Aston Martin V-12 Vanquish"), LOTUS("Lotus Esprit Turbo"), BMW("BMW Z8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

		private final String label;

		private CarModels(final String label) {
			Assert.isNotNull(label);
			this.label = label;
		}

		@Override
		public String toString() {
			return label;
		}
	}

	public enum CarOptions {
		FRONT_GUNS, SELF_DESTRUCT, UNDERWATER, PDCS
	}

	private enum CarWarranties {
		STANDARD, EXTENDED;

		@Override
		public String toString() {
			final char[] result = super.toString().toLowerCase().toCharArray();
			result[0] = Character.toUpperCase(result[0]);
			return String.valueOf(result);
		}
	}

}