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 the corresponding
54 * jsp is rendered with getServletContext().getRequestDispatcher("includedSite").include(request,response) and it is
55 * possible that something was written to the Response direct. So is is necessary that the content of the wrapped
56 * response is added to the componenttree.
57 *
58 * @return UIComponent or null
59 */
60 @Override
61 protected UIComponent createVerbatimComponentFromBodyContent()
62 {
63 UIOutput component = (UIOutput)super.createVerbatimComponentFromBodyContent();
64 FacesContext facesContext = FacesContext.getCurrentInstance();
65 Object response = facesContext.getExternalContext().getResponse();
66 String wrappedOutput;
67
68 if (response instanceof ServletViewResponseWrapper)
69 {
70 ServletViewResponseWrapper wrappedResponse = (ServletViewResponseWrapper)response;
71 wrappedOutput = wrappedResponse.toString();
72 if (wrappedOutput != null && wrappedOutput.length() > 0)
73 {
74 String componentvalue = null;
75 if (component != null)
76 {
77 // save the Value of the Bodycontent
78 componentvalue = (String)component.getValue();
79 }
80 component = super.createVerbatimComponent();
81 if (componentvalue != null)
82 {
83 component.setValue(wrappedOutput + componentvalue);
84 }
85 else
86 {
87 component.setValue(wrappedOutput);
88 }
89 wrappedResponse.reset();
90 }
91 }
92 return component;
93 }
94
95 }