/*
* 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.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
import org.apache.myfaces.tobago.component.Attributes;
import org.apache.myfaces.tobago.component.UICommand;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.internal.component.AbstractUIImage;
import org.apache.myfaces.tobago.renderkit.LayoutComponentRendererBase;
import org.apache.myfaces.tobago.renderkit.css.Classes;
import org.apache.myfaces.tobago.renderkit.css.Style;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
import org.apache.myfaces.tobago.renderkit.html.util.HtmlRendererUtils;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
public class ImageRenderer extends LayoutComponentRendererBase {
private static final Logger LOG = LoggerFactory.getLogger(ImageRenderer.class);
public void prepareRender(final FacesContext facesContext, final UIComponent component) throws IOException {
super.prepareRender(facesContext, component);
HtmlRendererUtils.renderDojoDndSource(facesContext, component);
}
public void encodeEnd(final FacesContext facesContext, final UIComponent component) throws IOException {
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
final AbstractUIImage image = (AbstractUIImage) component;
final String value = image.getUrl();
String src = value;
if (src != null) {
if (ResourceManagerUtils.isAbsoluteResource(src)) {
// absolute Path to image : nothing to do
} else {
src = null;
if (isDisabled(image)) {
src = ResourceManagerUtils.getImageWithPath(facesContext,
HtmlRendererUtils.createSrc(value, "Disabled"), true);
}
if (src == null) {
src = ResourceManagerUtils.getImageWithPath(facesContext, value);
}
}
}
String border = (String) image.getAttributes().get(Attributes.BORDER);
if (border == null) {
border = "0";
}
String alt = (String) image.getAttributes().get(Attributes.ALT);
if (alt == null) {
alt = "";
}
writer.startElement(HtmlElements.IMG, image);
final String clientId = image.getClientId(facesContext);
writer.writeIdAttribute(clientId);
HtmlRendererUtils.writeDataAttributes(facesContext, writer, image);
if (src != null) {
writer.writeAttribute(HtmlAttributes.SRC, src, true);
}
writer.writeAttribute(HtmlAttributes.ALT, alt, true);
HtmlRendererUtils.renderTip(image, writer);
writer.writeAttribute(HtmlAttributes.BORDER, border, false);
final Style style = new Style(facesContext, image);
writer.writeStyleAttribute(style);
HtmlRendererUtils.renderDojoDndItem(image, writer, true);
writer.writeClassAttribute(Classes.create(image));
writer.endElement(HtmlElements.IMG);
}
private String createSrc(final String src, final String ext) {
final int dot = src.lastIndexOf('.');
if (dot == -1) {
LOG.warn("Image src without extension: '" + src + "'");
return src;
} else {
return src.substring(0, dot) + ext + src.substring(dot);
}
}
private boolean isDisabled(final AbstractUIImage graphic) {
return graphic.isDisabled()
|| (graphic.getParent() instanceof UICommand && ((UICommand) graphic.getParent()).isDisabled());
}
}