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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.vaadin.session;
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import java.util.ArrayList;
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import java.util.List;
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import com.vaadin.ui.UI;
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/**
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* @author cmathew
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* @date 9 Apr 2015
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*
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*/
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public class SelectionService {
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public final static String KEY = "key_selectionService";
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private final List<ISelectionListener> listeners;
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private final List<SelectionEvent> currentEvents;
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public SelectionService() {
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listeners = new ArrayList<ISelectionListener>();
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currentEvents = new ArrayList<SelectionEvent>();
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}
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public void register(ISelectionListener listener) {
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listeners.add(listener);
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}
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public void addEvent(SelectionEvent event) {
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currentEvents.add(event);
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}
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public void fireCurrentSelectionEvents(boolean async) {
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try {
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for(SelectionEvent event : currentEvents) {
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fireSelectionEvent(event,async);
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}
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} finally {
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currentEvents.clear();
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}
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}
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public void fireSelectionEvent(final SelectionEvent event, boolean async) {
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for(final ISelectionListener listener : listeners) {
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if(async) {
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UI.getCurrent().access(new Runnable() {
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@Override
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public void run() {
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listener.onSelect(event);
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}
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});
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} else {
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listener.onSelect(event);
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}
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}
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}
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}
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