EDIT

/**

* Copyright (C) 2015 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.vaadin.session;

import java.util.ArrayList;

import java.util.List;

/**

 * @author cmathew

 */

public class SelectionService {

    public final static String KEY = "key_selectionService";

    private final List<ISelectionListener> listeners;

    private final List<SelectionEvent> currentEvents;

    public SelectionService() {

        listeners = new ArrayList<ISelectionListener>();

        currentEvents = new ArrayList<SelectionEvent>();

    }

    public void register(ISelectionListener listener) {

        listeners.add(listener);

    }

    public void addEvent(SelectionEvent event) {

        currentEvents.add(event);

    }

    public void fireCurrentSelectionEvents(boolean async) {

            for(SelectionEvent event : currentEvents) {

                fireSelectionEvent(event,async);

            }

        } finally {

            currentEvents.clear();

    }

    public void fireSelectionEvent(final SelectionEvent event, boolean async) {

        for(final ISelectionListener listener : listeners) {

            if(async) {

                    public void run() {

                        listener.onSelect(event);

                    }

                });

            } else {

                listener.onSelect(event);

            }

        }

    }

}