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.gwt.client.ui;
029
030import com.google.gwt.event.dom.client.HasMouseOutHandlers;
031import com.google.gwt.event.dom.client.HasMouseOverHandlers;
032import com.google.gwt.event.dom.client.MouseOutEvent;
033import com.google.gwt.event.dom.client.MouseOutHandler;
034import com.google.gwt.event.dom.client.MouseOverEvent;
035import com.google.gwt.event.dom.client.MouseOverHandler;
036import com.google.gwt.event.shared.HandlerRegistration;
037import com.google.gwt.user.client.ui.FlowPanel;
038
039/**
040 * A {@link com.google.gwt.user.client.ui.FlowPanel} implementation toggles the {@link org.opencms.gwt.client.ui.css.I_CmsLayoutBundle.I_CmsStateCss#cmsHovering()} CSS class on mouse over.<p>
041 *
042 * @since 8.0.0
043 */
044public class CmsHoverPanel extends FlowPanel implements HasMouseOutHandlers, HasMouseOverHandlers {
045
046    /**
047     * Constructor.<p>
048     */
049    public CmsHoverPanel() {
050
051        super();
052        A_CmsHoverHandler handler = new CmsClassHoverHandler(getElement());
053        addMouseOutHandler(handler);
054        addMouseOverHandler(handler);
055    }
056
057    /**
058     * @see com.google.gwt.event.dom.client.HasMouseOutHandlers#addMouseOutHandler(com.google.gwt.event.dom.client.MouseOutHandler)
059     */
060    public HandlerRegistration addMouseOutHandler(MouseOutHandler handler) {
061
062        return addDomHandler(handler, MouseOutEvent.getType());
063
064    }
065
066    /**
067     * @see com.google.gwt.event.dom.client.HasMouseOverHandlers#addMouseOverHandler(com.google.gwt.event.dom.client.MouseOverHandler)
068     */
069    public HandlerRegistration addMouseOverHandler(MouseOverHandler handler) {
070
071        return addDomHandler(handler, MouseOverEvent.getType());
072    }
073}