ImageHyperlink

Author: Alexei Sokolov 

Hyperlink which allows you to specify Image object as its content. Go ahead, implement your favority rollover effects with it.

Please leave your questions or comments here.

Source code:

ImageHyperlink.java:

/*
ImageHyperlink component for GWT
Copyright (C) 2006 Alexei Sokolov http://gwt.components.googlepages.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.

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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

package com.gwt.components.client;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Hyperlink;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.MouseListener;
import com.google.gwt.user.client.ui.MouseListenerCollection;
import com.google.gwt.user.client.ui.SourcesMouseEvents;

public class ImageHyperlink extends Hyperlink implements SourcesMouseEvents {

  private MouseListenerCollection mouseListeners;

  public ImageHyperlink(Image img) {
    this(img, "");
  }

  public ImageHyperlink(Image img, String targetHistoryToken) {
    super();
    DOM.appendChild(DOM.getFirstChild(getElement()), img.getElement());
    setTargetHistoryToken(targetHistoryToken);

    img.unsinkEvents(Event.ONCLICK | Event.MOUSEEVENTS);
    sinkEvents(Event.ONCLICK | Event.MOUSEEVENTS);
  }

  public void addMouseListener(MouseListener listener) {
    if (mouseListeners == null)
      mouseListeners = new MouseListenerCollection();
    mouseListeners.add(listener);
  }

  public void removeMouseListener(MouseListener listener) {
    if (mouseListeners != null)
      mouseListeners.remove(listener);
  }

  public void onBrowserEvent(Event event) {
    super.onBrowserEvent(event);
    switch (DOM.eventGetType(event)) {
    case Event.ONMOUSEDOWN:
    case Event.ONMOUSEUP:
    case Event.ONMOUSEMOVE:
    case Event.ONMOUSEOVER:
    case Event.ONMOUSEOUT: {
      if (mouseListeners != null)
        mouseListeners.fireMouseEvent(this, event);
      break;
    }
    }
  }