1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.taglib.core;
20
21 import javax.faces.component.UIComponent;
22 import javax.faces.component.UINamingContainer;
23 import javax.faces.component.UIOutput;
24 import javax.faces.context.FacesContext;
25 import javax.faces.webapp.UIComponentELTag;
26
27 import org.apache.myfaces.application.jsp.ServletViewResponseWrapper;
28
29 /**
30 * @author Thomas Spiegl (latest modification by $Author$)
31 * @version $Revision$ $Date$
32 */
33 public class SubviewTag extends UIComponentELTag
34 {
35 public SubviewTag()
36 {
37 super();
38 }
39
40 @Override
41 public String getComponentType()
42 {
43 return UINamingContainer.COMPONENT_TYPE;
44 }
45
46 @Override
47 public String getRendererType()
48 {
49 return null;
50 }
51
52 /**
53 * Creates a UIComponent from the BodyContent If a Subview is included via the <jsp:include> tag
54 * the corresponding jsp is rendered with
55 * getServletContext().getRequestDispatcher("includedSite").include(request,response) and it is
56 * possible that something was written to the Response direct. So is is necessary that the content of the wrapped
57 * response is added to the componenttree.
58 *
59 * @return UIComponent or null
60 */
61 @Override
62 protected UIComponent createVerbatimComponentFromBodyContent()
63 {
64 UIOutput component = (UIOutput)super.createVerbatimComponentFromBodyContent();
65 FacesContext facesContext = FacesContext.getCurrentInstance();
66 Object response = facesContext.getExternalContext().getResponse();
67 String wrappedOutput;
68
69 if (response instanceof ServletViewResponseWrapper)
70 {
71 ServletViewResponseWrapper wrappedResponse = (ServletViewResponseWrapper)response;
72 wrappedOutput = wrappedResponse.toString();
73 if (wrappedOutput != null && wrappedOutput.length() > 0)
74 {
75 String componentvalue = null;
76 if (component != null)
77 {
78 // save the Value of the Bodycontent
79 componentvalue = (String)component.getValue();
80 }
81 component = super.createVerbatimComponent();
82 if (componentvalue != null)
83 {
84 component.setValue(wrappedOutput + componentvalue);
85 }
86 else
87 {
88 component.setValue(wrappedOutput);
89 }
90 wrappedResponse.reset();
91 }
92 }
93 return component;
94 }
95
96 }