com.google.gwt.user.client.ui.ImageResourceRenderer Maven / Gradle / Ivy
/*
* Copyright 2011 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.user.client.ui;
import com.google.gwt.core.client.GWT;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.resources.client.impl.ImageResourcePrototype;
import com.google.gwt.safehtml.client.SafeHtmlTemplates;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeUri;
import com.google.gwt.text.shared.AbstractSafeHtmlRenderer;
/**
* Given an {@link ImageResource}, renders an element to show it.
*/
public class ImageResourceRenderer extends AbstractSafeHtmlRenderer {
interface Template extends SafeHtmlTemplates {
@SafeHtmlTemplates.Template("
")
SafeHtml image(SafeUri imageUri, int width, int height);
}
private static final Template TEMPLATE = GWT.create(Template.class);
@Override
public SafeHtml render(ImageResource image) {
if (image instanceof ImageResourcePrototype.Bundle) {
return AbstractImagePrototype.create(image).getSafeHtml();
} else {
return TEMPLATE.image(image.getSafeUri(), image.getWidth(), image.getHeight());
}
}
}