com.sun.webui.jsf.renderkit.html.LinkRenderer Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the license at
* https://woodstock.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at https://woodstock.dev.java.net/public/CDDLv1.0.html.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* you own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
*/
package com.sun.webui.jsf.renderkit.html;
import com.sun.faces.annotation.Renderer;
import com.sun.webui.jsf.component.Link;
import com.sun.webui.jsf.util.RenderingUtilities;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
/**
* This class is responsible for rendering the link component for the
* HTML Render Kit.
The link component can be used as an Link
*/
@Renderer(@Renderer.Renders(componentFamily = "com.sun.webui.jsf.Link"))
public class LinkRenderer extends AbstractRenderer {
// -------------------------------------------------------- Static Variables
/**
* The set of String pass-through attributes to be rendered.
*/
private static final String stringAttributes[] = {"charset", "media", "rel", "type"}; //NOI18N
// -------------------------------------------------------- Renderer Methods
/**
* Render the start of an Link (Link) tag.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* start should be rendered
* @exception IOException if an input/output error occurs
*/
@Override
protected void renderStart(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
//intentionally empty
}
/**
* Render the attributes for an Link tag. The onclick attribute will contain
* extra javascript that will appropriately submit the form if the URL field is
* not set.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* attributes should be rendered
* @exception IOException if an input/output error occurs
*/
@Override
protected void renderAttributes(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
//intentionally empty
}
/**
* Close off the Link tag.
* @param context FacesContext for the current request
* @param component UIComponent to be rendered
* @param writer ResponseWriter to which the element
* end should be rendered
* @exception IOException if an input/output error occurs
*/
@Override
protected void renderEnd(FacesContext context, UIComponent component,
ResponseWriter writer) throws IOException {
// End the appropriate element
Link link = (Link) component;
if (!RenderingUtilities.isPortlet(context)) {
writer.startElement("link", link);
addCoreAttributes(context, component, writer, null);
addStringAttributes(context, component, writer, stringAttributes);
String lang = link.getUrlLang();
if (null != lang) {
writer.writeAttribute("hreflang", lang, "lang"); //NOI18N
}
// the URL is the tough thing because it needs to be encoded:
String url = link.getUrl();
if (url != null) {
writer.writeAttribute("href", //NOI18N
context.getApplication().getViewHandler().getResourceURL(context, url),
"url"); //NOI18N
}
writer.endElement("link"); //NOI18N
writer.write("\n"); //NOI18N
}
}
// --------------------------------------------------------- Private Methods
}