| /* |
| * Copyright 2012 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.core.client.GWT; |
| import com.google.gwt.safehtml.client.SafeHtmlTemplates; |
| import com.google.gwt.safehtml.shared.SafeHtml; |
| import com.google.gwt.safehtml.shared.SafeHtmlBuilder; |
| import com.google.gwt.safehtml.shared.SafeUri; |
| |
| /** |
| * <p> |
| * An {@link AbstractCell} used to render an image by using a {@link SafeUri}. |
| * </p> |
| * <p> |
| * If the images being displayed are static or available at compile time, using |
| * {@link ImageResourceCell} will usually be more efficient. |
| * </p> |
| * |
| * @see ImageCell |
| * @see ImageResourceCell |
| */ |
| public class SafeImageCell extends AbstractCell<SafeUri> { |
| |
| interface Template extends SafeHtmlTemplates { |
| @Template("<img src=\"{0}\"/>") |
| SafeHtml img(SafeUri url); |
| } |
| |
| private static Template template; |
| |
| /** |
| * Construct a new SafeImageCell. |
| */ |
| public SafeImageCell() { |
| if (template == null) { |
| template = GWT.create(Template.class); |
| } |
| } |
| |
| @Override |
| public void render(Context context, SafeUri value, SafeHtmlBuilder sb) { |
| if (value != null) { |
| sb.append(template.img(value)); |
| } |
| } |
| } |