1 /* 2 * $Id$ 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 package org.apache.struts.faces.renderer; 23 24 25 import java.io.IOException; 26 27 import jakarta.faces.component.UIComponent; 28 import jakarta.faces.context.FacesContext; 29 import jakarta.faces.context.ResponseWriter; 30 31 32 /** 33 * <p><code>Renderer</code> implementation for the <code>stylesheet</code> tag 34 * from the <em>Struts-Faces Integration Library</em>.</p> 35 * 36 * @version $Rev$ $Date$ 37 */ 38 39 public class StylesheetRenderer extends AbstractRenderer { 40 41 42 // -------------------------------------------------------- Static Variables 43 44 45 // ---------------------------------------------------------- Public Methods 46 47 48 /** 49 * <p>Render a relative HTML <code><link></code> element for a 50 * <code>text/css</code> stylesheet at the specified context-relative 51 * path.</p> 52 * 53 * @param context FacesContext for the request we are processing 54 * @param component UIComponent to be rendered 55 * 56 * @exception IOException if an input/output error occurs while rendering 57 * @exception NullPointerException if <code>context</code> 58 * or <code>component</code> is <code>null</code> 59 */ 60 public void encodeEnd(FacesContext context, UIComponent component) 61 throws IOException { 62 63 if ((context == null) || (component == null)) { 64 throw new NullPointerException(); 65 } 66 67 ResponseWriter writer = context.getResponseWriter(); 68 writer.startElement("link", component); 69 writer.writeAttribute("rel", "stylesheet", null); 70 writer.writeAttribute("type", "text/css", null); 71 writer.writeURIAttribute 72 ("href", 73 context.getExternalContext().getRequestContextPath() + 74 (String) component.getAttributes().get("path"), "path"); 75 writer.endElement("link"); 76 writer.writeText("\n", null); 77 78 } 79 80 81 82 // ------------------------------------------------------- Protected Methods 83 84 85 }