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 538630 2007-05-16 15:26:43Z weber $
*/
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_DISABLED;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_IMAGE;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_TIP;
import org.apache.myfaces.tobago.component.ComponentUtil;
import org.apache.myfaces.tobago.component.UICommand;
import org.apache.myfaces.tobago.context.ResourceManagerUtil;
import org.apache.myfaces.tobago.renderkit.CommandRendererBase;
import org.apache.myfaces.tobago.renderkit.LabelWithAccessKey;
import org.apache.myfaces.tobago.renderkit.html.CommandRendererHelper;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlConstants;
import org.apache.myfaces.tobago.renderkit.html.HtmlRendererUtil;
import org.apache.myfaces.tobago.util.AccessKeyMap;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
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 Log LOG = LogFactory.getLog(LinkRenderer.class);
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
String clientId = component.getClientId(facesContext);
CommandRendererHelper helper
= new CommandRendererHelper(facesContext, (UICommand) component, CommandRendererHelper.Tag.ANCHOR);
String href = helper.getHref();
TobagoResponseWriter writer = HtmlRendererUtil.getTobagoResponseWriter(facesContext);
LabelWithAccessKey label = new LabelWithAccessKey(component);
if (helper.isDisabled()) {
writer.startElement(HtmlConstants.SPAN, component);
} else {
writer.startElement(HtmlConstants.A, component);
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);
}
}
writer.writeClassAttribute();
writer.writeIdAttribute(clientId);
writer.writeNameAttribute(clientId);
writer.writeAttributeFromComponent(HtmlAttributes.TITLE, ATTR_TIP);
writer.flush();
// image
String image = (String) component.getAttributes().get(ATTR_IMAGE);
if (image != null) {
if (image.startsWith("HTTP:") || image.startsWith("FTP:") || image.startsWith("/")) {
// absolute Path to image : nothing to do
} else {
image = ResourceManagerUtil.getImageWithPath(facesContext, image, helper);
}
writer.startElement(HtmlConstants.IMG, null);
writer.writeAttribute(HtmlAttributes.SRC, image, true);
writer.writeAttribute(HtmlAttributes.ALT, "", false);
writer.writeAttribute(HtmlAttributes.BORDER, 0); // TODO: is border=0 setting via style possible?
writer.endElement(HtmlConstants.IMG);
}
// label
if (label.getText() != null) {
if (image != null) {
writer.write(" "); // separator: e.g.
}
HtmlRendererUtil.writeLabelWithAccessKey(writer, label);
}
if (label.getAccessKey() != null) {
if (LOG.isInfoEnabled()
&& !AccessKeyMap.addAccessKey(facesContext, label.getAccessKey())) {
LOG.info("dublicated accessKey : " + label.getAccessKey());
}
HtmlRendererUtil.addClickAcceleratorKey(facesContext, clientId, label.getAccessKey());
}
}
public void encodeEnd(FacesContext facesContext, UIComponent component)
throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
if (ComponentUtil.getBooleanAttribute(component, ATTR_DISABLED)) {
writer.endElement(HtmlConstants.SPAN);
} else {
writer.endElement(HtmlConstants.A);
}
}
}