CaptionedImageWidget.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.waveprotocol.wave.client.editor.examples.img;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Element;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Image;

/**
 * A simple captioned image widget.
 *
 * @author danilatos@google.com (Daniel Danilatos)
 */
public class CaptionedImageWidget extends Composite {

  public interface Listener {
    void onClickImage();
  }

  /** UiBinder */
  interface Binder extends UiBinder<HTMLPanel, CaptionedImageWidget> {}
  private static final Binder BINDER = GWT.create(Binder.class);

  @UiField Element container;
  @UiField Image image;

  private Listener listener;

  public CaptionedImageWidget() {
    initWidget(BINDER.createAndBindUi(this));
  }

  public void setListener(Listener listener) {
    this.listener = listener;
  }

  public Element getContainer() {
    return container;
  }

  public void setImageSrc(String src) {
    image.setUrl(src);
  }

  @UiHandler("image")
  void handleClick(ClickEvent e) {
    if (listener != null) {
      listener.onClickImage();
    }

  }
}