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.custom.conversation;
20
21 import java.io.IOException;
22
23 import javax.faces.component.UIComponentBase;
24 import javax.faces.context.FacesContext;
25
26 import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
27
28 /**
29 * Separates the current context from the children. e.g. commandLinks will start a
30 * new conversation context
31 *
32 * separate the current context from the to be rendered children.
33 * E.g. when you render commandLinks they will start a new conversationContext
34 *
35 * @JSFComponent
36 * name = "s:separateConversationContext"
37 * tagClass = "org.apache.myfaces.custom.conversation.SeparateConversationContextTag"
38 *
39 * @author imario@apache.org
40 */
41 public class UISeparateConversationContext extends UIComponentBase
42 {
43 public static final String COMPONENT_FAMILY = "javax.faces.Component";
44 public static final String COMPONENT_TYPE = "org.apache.myfaces.SeparateConversationContext";
45
46 private final static ThreadLocal inSeperationMode = new ThreadLocal();
47
48 public static void setInSeparationMode(boolean seperationMode)
49 {
50 inSeperationMode.set(seperationMode?Boolean.TRUE:Boolean.FALSE);
51 }
52
53 public static boolean isInSeparationMode()
54 {
55 return Boolean.TRUE.equals(inSeperationMode.get());
56 }
57
58 public void encodeBegin(FacesContext context) throws IOException
59 {
60 super.encodeBegin(context);
61
62 setInSeparationMode(true);
63 }
64
65 public void encodeChildren(FacesContext context) throws IOException
66 {
67 try
68 {
69 RendererUtils.renderChildren(context, this);
70 }
71 finally
72 {
73 setInSeparationMode(false);
74 }
75 }
76
77 public boolean getRendersChildren()
78 {
79 return true;
80 }
81
82 public String getFamily()
83 {
84 return COMPONENT_FAMILY;
85 }
86 }