package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
/*
* 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.
*/
/*
* Created 07.02.2003 16:00:00.
* $Id: LinkRenderer.java 1136034 2011-06-15 13:32:07Z lofwyr $
*/
import org.apache.myfaces.tobago.component.UILink;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.internal.util.AccessKeyMap;
import org.apache.myfaces.tobago.internal.util.Deprecation;
import org.apache.myfaces.tobago.renderkit.CommandRendererBase;
import org.apache.myfaces.tobago.renderkit.LabelWithAccessKey;
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.CommandRendererHelper;
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 javax.faces.context.ResponseWriter;
import java.io.IOException;
public class LinkRenderer extends CommandRendererBase {
private static final Logger LOG = LoggerFactory.getLogger(LinkRenderer.class);
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
UILink link = (UILink) component;
String clientId = link.getClientId(facesContext);
CommandRendererHelper helper = new CommandRendererHelper(facesContext, link, CommandRendererHelper.Tag.ANCHOR);
String href = helper.getHref();
TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
LabelWithAccessKey label = new LabelWithAccessKey(link);
if (helper.isDisabled()) {
writer.startElement(HtmlElements.SPAN, link);
} else {
writer.startElement(HtmlElements.A, link);
writer.writeAttribute(HtmlAttributes.HREF, href, true);
if (helper.getOnclick() != null) {
writer.writeAttribute(HtmlAttributes.ONCLICK, helper.getOnclick(), true);
}
if (helper.getTarget() != null) {
writer.writeAttribute(HtmlAttributes.TARGET, helper.getTarget(), true);
}
Integer tabIndex = null;
if (link instanceof UILink) {
tabIndex = ((UILink) link).getTabIndex();
} else {
Deprecation.LOG.warn("LinkRenderer should only render UILink but got " + link.getClass().getName()
+ " id=" + link.getClientId(facesContext));
}
if (tabIndex != null) {
writer.writeAttribute(HtmlAttributes.TABINDEX, tabIndex);
}
}
Style style = new Style(facesContext, link);
writer.writeStyleAttribute(style);
HtmlRendererUtils.renderDojoDndItem(component, writer, true);
writer.writeClassAttribute(Classes.create(link));
writer.writeIdAttribute(clientId);
writer.writeNameAttribute(clientId);
HtmlRendererUtils.renderTip(link, writer);
writer.flush();
// image
String image = link.getImage();
if (image != null) {
if (ResourceManagerUtils.isAbsoluteResource(image)) {
// absolute Path to image : nothing to do
} else {
image = getImageWithPath(facesContext, image, helper.isDisabled());
}
writer.startElement(HtmlElements.IMG, link);
writer.writeAttribute(HtmlAttributes.SRC, image, true);
writer.writeAttribute(HtmlAttributes.BORDER, 0); // TODO: is border=0 setting via style possible?
String tip = link.getTip();
writer.writeAttribute(HtmlAttributes.ALT, tip != null ? tip : "", true);
if (tip != null) {
writer.writeAttribute(HtmlAttributes.TITLE, tip, true);
}
writer.endElement(HtmlElements.IMG);
}
// label
if (label.getText() != null) {
if (image != null) {
writer.write(" "); // separator: e.g.
}
HtmlRendererUtils.writeLabelWithAccessKey(writer, label);
}
if (label.getAccessKey() != null) {
if (LOG.isInfoEnabled()
&& !AccessKeyMap.addAccessKey(facesContext, label.getAccessKey())) {
LOG.info("duplicated accessKey : " + label.getAccessKey());
}
HtmlRendererUtils.addClickAcceleratorKey(facesContext, clientId, label.getAccessKey());
}
}
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
UILink link = (UILink) component;
ResponseWriter writer = facesContext.getResponseWriter();
if (link.isDisabled()) {
writer.endElement(HtmlElements.SPAN);
} else {
writer.endElement(HtmlElements.A);
}
}
}