next.celebs.XImageDiv.java Source code

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Here is the source code for next.celebs.XImageDiv.java

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/*
 * Copyright 2011 Vancouver Ywebb Consulting Ltd
 * 
 * Licensed 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 next.celebs;

import next.i.XStyle;

import com.google.gwt.dom.client.Style;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.SimplePanel;

/**
 * This is a light alternative of <img /> using <div /> with a css
 * background-image instead.
 * <p>
 * The reason of this class existence is that &lt;img /&gt; object locks the DOM
 * until fully loaded causing DOM unresponsiveness. Thumb of rule, you should
 * avoid using images and use div's with backgrounds instead.
 * 
 * @deprecated This class is part of NEXT
 */
public class XImageDiv extends Composite implements HasClickHandlers {

    private SimplePanel panel;

    public XImageDiv(String imagePath, String width, String height, String backgroundPosition) {
        panel = new SimplePanel();
        initWidget(panel);
        setStyleName(XStyle.ximage.name());

        Style s = panel.getElement().getStyle();
        s.setProperty("backgroundImage", "url('" + imagePath + "')");
        s.setProperty("backgroundRepeat", "no-repeat");

        if (backgroundPosition != null) {
            s.setProperty("backgroundPosition", backgroundPosition);
        }
        if (width != null) {
            s.setProperty("width", width);
        }
        if (height != null) {
            s.setProperty("height", height);
        }
    }

    @Override
    public HandlerRegistration addClickHandler(ClickHandler handler) {
        return addDomHandler(handler, ClickEvent.getType());
    }

}