com.openkm.frontend.client.widget.dashboard.ImageHover.java Source code

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Here is the source code for com.openkm.frontend.client.widget.dashboard.ImageHover.java

Source

/**
 *  OpenKM, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2015  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.openkm.frontend.client.widget.dashboard;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasAllMouseHandlers;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseDownHandler;
import com.google.gwt.event.dom.client.MouseMoveEvent;
import com.google.gwt.event.dom.client.MouseMoveHandler;
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.event.dom.client.MouseUpEvent;
import com.google.gwt.event.dom.client.MouseUpHandler;
import com.google.gwt.event.dom.client.MouseWheelEvent;
import com.google.gwt.event.dom.client.MouseWheelHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Image;

/**
 * Image hovering on mouse over
 * 
 * @author jllort
 *
 */
public class ImageHover extends Image implements HasClickHandlers, HasAllMouseHandlers {
    private String url = "";
    private String urlHover = "";

    public ImageHover(final String url, final String urlHover) {
        super(url);
        sinkEvents(Event.ONCLICK | Event.MOUSEEVENTS);
        this.url = url;
        this.urlHover = urlHover;

        addMouseOverHandler(new MouseOverHandler() {
            @Override
            public void onMouseOver(MouseOverEvent event) {
                setUrl(urlHover);
            }
        });

        addMouseOutHandler(new MouseOutHandler() {
            @Override
            public void onMouseOut(MouseOutEvent event) {
                setUrl(url);
            }
        });
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasClickHandlers#addClickHandler(com.google.gwt.event.dom.client.ClickHandler)
     */
    @Override
    public HandlerRegistration addClickHandler(ClickHandler handler) {
        return addHandler(handler, ClickEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseDownHandlers#addMouseDownHandler(com.google.gwt.event.dom.client.MouseDownHandler)
     */
    public HandlerRegistration addMouseDownHandler(MouseDownHandler handler) {
        return addDomHandler(handler, MouseDownEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseMoveHandlers#addMouseMoveHandler(com.google.gwt.event.dom.client.MouseMoveHandler)
     */
    public HandlerRegistration addMouseMoveHandler(MouseMoveHandler handler) {
        return addDomHandler(handler, MouseMoveEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseOutHandlers#addMouseOutHandler(com.google.gwt.event.dom.client.MouseOutHandler)
     */
    public HandlerRegistration addMouseOutHandler(MouseOutHandler handler) {
        return addDomHandler(handler, MouseOutEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseOverHandlers#addMouseOverHandler(com.google.gwt.event.dom.client.MouseOverHandler)
     */
    public HandlerRegistration addMouseOverHandler(MouseOverHandler handler) {
        return addDomHandler(handler, MouseOverEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseUpHandlers#addMouseUpHandler(com.google.gwt.event.dom.client.MouseUpHandler)
     */
    public HandlerRegistration addMouseUpHandler(MouseUpHandler handler) {
        return addDomHandler(handler, MouseUpEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.event.dom.client.HasMouseWheelHandlers#addMouseWheelHandler(com.google.gwt.event.dom.client.MouseWheelHandler)
     */
    public HandlerRegistration addMouseWheelHandler(MouseWheelHandler handler) {
        return addDomHandler(handler, MouseWheelEvent.getType());
    }

    /* (non-Javadoc)
     * @see com.google.gwt.user.client.ui.Widget#onBrowserEvent(com.google.gwt.user.client.Event)
     */
    public void onBrowserEvent(Event event) {
        switch (DOM.eventGetType(event)) {
        case Event.ONMOUSEDOWN:
        case Event.ONMOUSEUP:
        case Event.ONMOUSEMOVE:
        case Event.ONMOUSEOVER:
            if (!super.getUrl().equals(urlHover)) {
                super.setUrl(urlHover);
            }
            break;
        case Event.ONMOUSEOUT: {
            if (!super.getUrl().equals(url)) {
                super.setUrl(url);
            }
            break;
        }

        }
        super.onBrowserEvent(event);
    }
}