com.google.gwt.cell.client.ImageResourceCell Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* 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 com.google.gwt.cell.client;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.AbstractImagePrototype;
/**
* An {@link AbstractCell} used to render an {@link ImageResource}.
*
*
* This class assumes that the URL returned from ImageResource is safe from
* script attacks. If you do not generate the ImageResource from a
* {@link com.google.gwt.resources.client.ClientBundle ClientBundle}, you should
* use {@link com.google.gwt.safehtml.shared.UriUtils UriUtils} to sanitize the
* URL before returning it from {@link ImageResource#getURL()}.
*/
public class ImageResourceCell extends AbstractCell {
/**
* Construct a new ImageResourceCell.
*/
public ImageResourceCell() {
}
@Override
public void render(Context context, ImageResource value, SafeHtmlBuilder sb) {
if (value != null) {
SafeHtml html = SafeHtmlUtils.fromTrustedString(AbstractImagePrototype.create(
value).getHTML());
sb.append(html);
}
}
}