com.cubusmail.client.util.MessageListTimer.java Source code

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Here is the source code for com.cubusmail.client.util.MessageListTimer.java

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/* MessageListTimer.java
    
   Copyright (c) 2009 Juergen Schlierf, All Rights Reserved
       
   This file is part of Cubusmail (http://code.google.com/p/cubusmail/).
       
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.
       
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
       
   You should have received a copy of the GNU Lesser General Public
   License along with Cubusmail. If not, see <http://www.gnu.org/licenses/>.
       
 */
package com.cubusmail.client.util;

import com.cubusmail.client.events.EventBroker;
import com.cubusmail.common.model.Preferences;
import com.google.gwt.user.client.Timer;

/**
 * Timer for releading the message list.
 * 
 * @author Juergen Schlierf
 */
public class MessageListTimer {

    private static MessageListTimer instance;

    private Timer timer;

    public static MessageListTimer get() {

        if (instance == null) {
            instance = new MessageListTimer();
        }

        return instance;
    }

    private MessageListTimer() {

        this.timer = new Timer() {

            public void run() {

                EventBroker.get().fireMessagesReload();
            }
        };

    }

    public void start() {

        Preferences preferences = GWTSessionManager.get().getPreferences();
        if (preferences.getMessagesReloadPeriod() > 0) {
            this.timer.scheduleRepeating(preferences.getMessagesReloadPeriod());
        } else {
            this.timer.cancel();
        }
    }

    public void stop() {

        this.timer.cancel();
    }
}