org.openremote.web.console.event.ConsoleUnitEventManager.java Source code

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Here is the source code for org.openremote.web.console.event.ConsoleUnitEventManager.java

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/* OpenRemote, the Home of the Digital Home.
* Copyright 2008-2012, OpenRemote Inc.
*
* See the contributors.txt file in the distribution for a
* full listing of individual contributors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.openremote.web.console.event;

import org.openremote.web.console.client.WebConsole;
import org.openremote.web.console.event.press.PressCancelEvent;
import org.openremote.web.console.event.press.PressEndEvent;
import org.openremote.web.console.event.press.PressMoveEvent;
import org.openremote.web.console.event.press.PressMoveReleaseHandlerImpl;
import org.openremote.web.console.event.press.PressStartEvent;

import com.google.gwt.event.shared.HandlerManager;

/**
 * 
 *  
 * @author <a href="mailto:richard@openremote.org">Richard Turner</a>
 */
public class ConsoleUnitEventManager {
    private static ConsoleUnitEventManager instance;
    private HandlerManager eventBus;
    private PressMoveReleaseHandlerImpl pressMoveReleaseHandler;

    private ConsoleUnitEventManager() {
        eventBus = new HandlerManager(WebConsole.getConsoleUnit());
        pressMoveReleaseHandler = new PressMoveReleaseHandlerImpl();
        attachHandlers();
    }

    private void attachHandlers() {
        // Add Press handlers to capture Press Events
        eventBus.addHandler(PressStartEvent.getType(), pressMoveReleaseHandler);
        eventBus.addHandler(PressMoveEvent.getType(), pressMoveReleaseHandler);
        eventBus.addHandler(PressEndEvent.getType(), pressMoveReleaseHandler);
        eventBus.addHandler(PressCancelEvent.getType(), pressMoveReleaseHandler);
    }

    public HandlerManager getEventBus() {
        return eventBus;
    }

    public PressMoveReleaseHandlerImpl getPressMoveReleaseHandler() {
        return pressMoveReleaseHandler;
    }

    public static synchronized ConsoleUnitEventManager getInstance() {
        if (instance == null) {
            instance = new ConsoleUnitEventManager();
        }
        return instance;
    }
}