org.eclipse.osbp.vaaclipse.addons.softwarefactory/src/org/eclipse/osbp/vaaclipse/addons/softwarefactory/handler/StrategyHandler.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License 2.0        
 * which accompanies this distribution, and is available at                  
 * https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 * SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 * Contributors:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.vaaclipse.addons.softwarefactory.handler;

import java.util.Locale;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.eclipse.e4.core.services.events.IEventBroker;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.osbp.eventbroker.EventBrokerMsg;
import org.eclipse.osbp.ui.api.metadata.IDSLMetadataService;
import org.eclipse.osbp.ui.api.user.IUser;
import org.eclipse.osbp.vaaclipse.api.ResourceInfoProvider;
import org.eclipse.osbp.xtext.dialogdsl.common.StrategyProvider;
import org.eclipse.osbp.xtext.strategy.FocusingEnhancer;
import org.eclipse.osbp.xtext.strategy.LayoutingStrategy;
import org.eclipse.osbp.xtext.strategy.StrategyDSLPackage;
import org.eclipse.osbp.xtext.strategy.StrategyDefault;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.ComponentContainer;
import com.vaadin.ui.FormLayout;

@SuppressWarnings("all")
public class StrategyHandler implements IUser.UserLocaleListener {
	private final static Logger log = LoggerFactory.getLogger("change strategy");

	@Inject
	private IEventBroker eventBroker;

	@Inject
	private ResourceInfoProvider resourceInfoProvider;

	private ComboBox strategyCombo;

	@Inject
	private IUser user;

	/** The metadata service. */
	@Inject
	private IDSLMetadataService dslMetadataService;
	
	private StrategyProvider stdProvider;

	@PostConstruct
	public void init(final ComponentContainer container) {
		FormLayout form = new FormLayout();
		form.addStyleName("ToolControlCombo");
		form.setMargin(false);
		form.setSpacing(false);
		strategyCombo = new ComboBox();
		strategyCombo.setNullSelectionAllowed(false);
		strategyCombo.setWidth("200px");
		strategyCombo.setTextInputAllowed(false);

		for (EObject obj : dslMetadataService.getAll(StrategyDSLPackage.Literals.STRATEGY_DEFAULT)) {
			StrategyDefault stdStrategy = ((StrategyDefault) obj);
			stdProvider = new StrategyProvider(stdStrategy.getDefaultLayouting().getName()+"LayoutingStrategy",
					stdStrategy.getDefaultFocusing().getName()+"FocusingEnhancer");
			strategyCombo.addItem(stdProvider);
			strategyCombo.setItemCaption(stdProvider, "Standard");
		}
		for (EObject strategyObj : dslMetadataService.getAll(StrategyDSLPackage.Literals.LAYOUTING_STRATEGY)) {
			LayoutingStrategy strategy = (LayoutingStrategy) strategyObj;
			for (EObject enhancerObj : dslMetadataService.getAll(StrategyDSLPackage.Literals.FOCUSING_ENHANCER)) {
				FocusingEnhancer enhancer = (FocusingEnhancer) enhancerObj; 
				StrategyProvider verticalProvider = new StrategyProvider(strategy.getName()+"LayoutingStrategy", enhancer.getName()+"FocusingEnhancer");
				strategyCombo.addItem(verticalProvider);
				strategyCombo.setItemCaption(verticalProvider, strategy.getName());
			}
		}
		form.addComponent(strategyCombo);
		container.addComponent(form);
		strategyCombo.select(stdProvider);
		strategyCombo.addValueChangeListener(new ValueChangeListener() {
			@Override
			public void valueChange(ValueChangeEvent event) {
				if (log.isDebugEnabled())
					log.debug("will set theme to:"
							+ event.getProperty().getValue());
				StrategyProvider provider = ((StrategyProvider) event
						.getProperty().getValue());
				if ((provider != null) && (provider.getLayoutingId() != null)) {
					eventBroker.send(EventBrokerMsg.DIALOG_STRATEGY_CHANGED, provider);
				}
			}
		});
		user.addUserLocaleListener(this);
	}

	@Override
	public void localeChanged(Locale locale) {
		strategyCombo.setDescription(dslMetadataService.translate(locale.toLanguageTag(), "strategyTooltip"));
	}
}