/**
 *                                                                            
 *  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 v1.0       
 *  which accompanies this distribution, and is available at                  
 *  http://www.eclipse.org/legal/epl-v10.html                                 
 *                                                                            
 *  Contributors:                                                      
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 */
 package org.eclipse.osbp.utils.vaadin;

import java.util.Set;

import org.eclipse.e4.core.services.events.IEventBroker;

import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;

import org.eclipse.osbp.eventbroker.EventBrokerMsg;
import org.eclipse.osbp.ui.api.metadata.IDSLMetadataService;

@SuppressWarnings("serial")
public class SelectUserWindow extends Window {
	private IEventBroker eventBroker;
	private EventBrokerMsg msg = null;
	private String eventTarget = null;
	private ComboBox usersCombo;
	private String selectedUser = null;
	
	public SelectUserWindow(String caption, String comboCaption) {
		super();
		super.setCaption(caption);
		setClosable(false);
		setModal(true);
		VerticalLayout subContent = new VerticalLayout();
		subContent.setMargin(true);
		setContent(subContent);
		usersCombo = new ComboBox(comboCaption);
		usersCombo.setNullSelectionAllowed(false);
		usersCombo.addValueChangeListener(new ValueChangeListener() {

			@Override
			public void valueChange(ValueChangeEvent event) {
				selectedUser = (String)usersCombo.getValue();
				msg.setName(selectedUser);
				eventBroker.send(eventTarget, msg);
				close();
			}
    	});
		subContent.addComponent(usersCombo);
		center();
	}
	
	public SelectUserWindow init(Set<String> users, IEventBroker eventBroker, String eventTarget) {
		return init(users, eventBroker, eventTarget, null);
	}
	
	public SelectUserWindow init(Set<String> users, IEventBroker eventBroker, String eventTarget, EventBrokerMsg msg) {
		this.eventBroker = eventBroker;
		this.eventTarget = eventTarget;
		if (msg == null) {
			this.msg = new EventBrokerMsg(null, null);
		} else {
			this.msg = msg;
		}
		usersCombo.addItems(users);
		return this;
	}
	public String getSelectedUser() {
		return selectedUser;
	}
	
	public void setSelectedUser(String selectedUser) {
		this.selectedUser = selectedUser;
	}
}