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Java > Open Source Codes > com > icesoft > faces > renderkit > dom_html_basic > TextareaRenderer


1 /*
2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3  *
4  * "The contents of this file are subject to the Mozilla Public License
5  * Version 1.1 (the "License"); you may not use this file except in
6  * compliance with the License. You may obtain a copy of the License at
7  * http://www.mozilla.org/MPL/
8  *
9  * Software distributed under the License is distributed on an "AS IS"
10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
11  * License for the specific language governing rights and limitations under
12  * the License.
13  *
14  * The Original Code is ICEfaces 1.5 open source software code, released
15  * November 5, 2006. The Initial Developer of the Original Code is ICEsoft
16  * Technologies Canada, Corp. Portions created by ICEsoft are Copyright (C)
17  * 2004-2006 ICEsoft Technologies Canada, Corp. All Rights Reserved.
18  *
19  * Contributor(s): _____________________.
20  *
21  * Alternatively, the contents of this file may be used under the terms of
22  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"
23  * License), in which case the provisions of the LGPL License are
24  * applicable instead of those above. If you wish to allow use of your
25  * version of this file only under the terms of the LGPL License and not to
26  * allow others to use your version of this file under the MPL, indicate
27  * your decision by deleting the provisions above and replace them with
28  * the notice and other provisions required by the LGPL License. If you do
29  * not delete the provisions above, a recipient may use your version of
30  * this file under either the MPL or the LGPL License."
31  *
32  */
33
34 package com.icesoft.faces.renderkit.dom_html_basic;
35
36 import com.icesoft.faces.context.DOMContext;
37 import org.w3c.dom.Element JavaDoc;
38 import org.w3c.dom.Text JavaDoc;
39
40 import javax.faces.component.UIComponent;
41 import javax.faces.component.UIInput;
42 import javax.faces.context.FacesContext;
43 import java.io.IOException JavaDoc;
44 import java.util.HashSet JavaDoc;
45
46 public class TextareaRenderer extends DomBasicInputRenderer {
47
48     public void encodeBegin(FacesContext context, UIComponent component)
49             throws IOException JavaDoc {
50         validateParameters(context, component, UIInput.class);
51     }
52
53     public void encodeChildren(FacesContext context, UIComponent component) {
54         validateParameters(context, component, UIInput.class);
55     }
56
57     protected void renderEnd(FacesContext facesContext, UIComponent component,
58                              String JavaDoc currentValue)
59             throws IOException JavaDoc {
60
61         validateParameters(facesContext, component, UIInput.class);
62
63         DOMContext domContext =
64                 DOMContext.attachDOMContext(facesContext, component);
65
66         if (!domContext.isInitialized()) {
67             Element JavaDoc root = domContext.createElement("textarea");
68             domContext.setRootNode(root);
69             setRootElementId(facesContext, root, component);
70             root.setAttribute("name", component.getClientId(facesContext));
71             Text JavaDoc valueNode = domContext.getDocument().createTextNode("");
72             root.appendChild(valueNode);
73         }
74         Element JavaDoc root = (Element JavaDoc) domContext.getRootNode();
75
76         String JavaDoc styleClass =
77                 (String JavaDoc) component.getAttributes().get("styleClass");
78         if (styleClass != null) {
79             root.setAttribute("class", styleClass);
80         }
81         PassThruAttributeRenderer
82                 .renderAttributes(facesContext, component, null);
83
84         String JavaDoc dir = (String JavaDoc) component.getAttributes().get("dir");
85         if (dir != null) {
86             root.setAttribute("dir", dir);
87         }
88
89         Text JavaDoc valueNode = (Text JavaDoc) root.getFirstChild();
90         if (currentValue != null) {
91             valueNode.setData(currentValue);
92         } else {
93             // this is necessary due to a restriction on the
94 // structure of the textarea element in the DOM
95 valueNode.setData("");
96         }
97         HashSet JavaDoc excludes = new HashSet JavaDoc();
98         addJavaScript(facesContext, component, root, currentValue, excludes);
99         domContext.stepOver();
100         domContext.streamWrite(facesContext, component);
101     }
102
103     protected void addJavaScript(FacesContext facesContext,
104                                  UIComponent uiComponent, Element JavaDoc root,
105                                  String JavaDoc currentValue,
106                                  HashSet JavaDoc excludes) {
107     }
108
109 }
110
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