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OpenCms is an enterprise-ready, easy to use website content management system based on Java and XML technology. Offering a complete set of features, OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

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/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
 *
 * 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 2.1 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.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.gwt.client.ui;

import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.event.dom.client.MouseOverEvent;
import com.google.gwt.event.dom.client.MouseOverHandler;
import com.google.gwt.user.client.Timer;

/**
 * On hover intent handler.

* * @since 8.0.0 */ public abstract class A_CmsHoverHandler implements MouseOutHandler, MouseOverHandler { /** Timer to achieve the hover intent effect. */ protected Timer m_timer; /** * @see com.google.gwt.event.dom.client.MouseOutHandler#onMouseOut(com.google.gwt.event.dom.client.MouseOutEvent) */ public final void onMouseOut(MouseOutEvent event) { if (m_timer != null) { m_timer.cancel(); m_timer = null; } else { onHoverOut(event); } } /** * @see com.google.gwt.event.dom.client.MouseOverHandler#onMouseOver(com.google.gwt.event.dom.client.MouseOverEvent) */ public final void onMouseOver(final MouseOverEvent event) { if (m_timer != null) { return; } m_timer = new Timer() { /** * @see com.google.gwt.user.client.Timer#run() */ @Override public void run() { m_timer = null; onHoverIn(event); } }; m_timer.schedule(200); } /** * Will be executed for starting the hover effect.

* * @param event the mouse event */ protected abstract void onHoverIn(MouseOverEvent event); /** * Will be executed for finishing the hover effect.

* * @param event the mouse event */ protected abstract void onHoverOut(MouseOutEvent event); }





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