001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ui.client;
029
030import org.opencms.gwt.client.rpc.CmsRpcAction;
031import org.opencms.ui.components.extensions.CmsWindowCloseExtension;
032import org.opencms.ui.shared.rpc.I_CmsWindowCloseServerRpc;
033
034import com.google.gwt.user.client.Window;
035import com.google.gwt.user.client.Window.ClosingEvent;
036import com.google.gwt.user.client.Window.ClosingHandler;
037import com.vaadin.client.ServerConnector;
038import com.vaadin.client.extensions.AbstractExtensionConnector;
039import com.vaadin.shared.ui.Connect;
040
041/**
042 * The window close connector.<p>
043 */
044@Connect(CmsWindowCloseExtension.class)
045public class CmsWindowCloseConnector extends AbstractExtensionConnector {
046
047    /** The serial version id. */
048    private static final long serialVersionUID = 190108090241764065L;
049
050    /** The RPC proxy. */
051    private I_CmsWindowCloseServerRpc m_rpc;
052
053    /**
054     * Constructor.<p>
055     */
056    public CmsWindowCloseConnector() {
057        m_rpc = getRpcProxy(I_CmsWindowCloseServerRpc.class);
058    }
059
060    /**
061     * @see com.vaadin.client.extensions.AbstractExtensionConnector#extend(com.vaadin.client.ServerConnector)
062     */
063    @Override
064    protected void extend(ServerConnector target) {
065
066        Window.addWindowClosingHandler(new ClosingHandler() {
067
068            public void onWindowClosing(ClosingEvent event) {
069
070                handleClose();
071            }
072        });
073    }
074
075    /**
076     * Handles the window closing.<p>
077     */
078    void handleClose() {
079
080        m_rpc.windowClosed(CmsRpcAction.SYNC_TOKEN);
081    }
082}