Textarea


1   /* ***** BEGIN LICENSE BLOCK *****
2    * Version: MPL 1.1
3    * The contents of this file are subject to the Mozilla Public License Version
4    * 1.1 (the "License"); you may not use this file except in compliance with
5    * the License. You may obtain a copy of the License at
6    * http://www.mozilla.org/MPL/
7    * 
8    * Software distributed under the License is distributed on an "AS IS" basis,
9    * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10   * for the specific language governing rights and limitations under the
11   * License.
12   * 
13   * The Original Code is Riot.
14   * 
15   * The Initial Developer of the Original Code is
16   * Neteye GmbH.
17   * Portions created by the Initial Developer are Copyright (C) 2006
18   * the Initial Developer. All Rights Reserved.
19   * 
20   * Contributor(s):
21   *   Felix Gnass [fgnass at neteye dot de]
22   * 
23   * ***** END LICENSE BLOCK ***** */
24  package org.riotfamily.forms.element;
25  
26  import java.io.PrintWriter  ;
27  
28  import org.riotfamily.common.markup.Html;
29  import org.riotfamily.common.markup.TagWriter;
30  import org.riotfamily.forms.DHTMLElement;
31  import org.riotfamily.forms.resource.FormResource;
32  import org.riotfamily.forms.resource.ResourceElement;
33  import org.riotfamily.forms.resource.Resources;
34  import org.riotfamily.forms.resource.ScriptResource;
35  
36  
37  /**
38   * A textarea widget.
39   */
40  public class Textarea extends AbstractTextElement implements ResourceElement, 
41          DHTMLElement {
42  
43      private static FormResource RESOURCE = new ScriptResource(
44              "riot-js/textarea.js", "RiotTextArea", Resources.RIOT_UTIL);
45      
46      private Integer   rows = null;
47  
48      private Integer   cols = null;
49  
50      public void setCols(Integer   cols) {
51          this.cols = cols;
52      }
53  
54      public void setRows(Integer   rows) {
55          this.rows = rows;
56      }
57  
58      public void renderInternal(PrintWriter   writer) {
59          TagWriter tag = new TagWriter(writer);
60          tag.start(Html.TEXTAREA)
61              .attribute(Html.COMMON_CLASS, getStyleClass())
62              .attribute(Html.COMMON_ID, getId())
63              .attribute(Html.INPUT_NAME, getParamName());
64          
65          if (rows != null) {
66              tag.attribute(Html.TEXTAREA_ROWS, rows.intValue());
67          }
68          if (cols != null) {
69              tag.attribute(Html.TEXTAREA_COLS, cols.intValue());
70          }
71          
72          tag.body(getText()).end();
73      }
74      
75      public FormResource getResource() {
76          return RESOURCE;
77      }
78      
79      public String   getInitScript() {
80          if (getMaxLength() != null || rows == null) {
81              StringBuffer   sb = new StringBuffer  ();
82              sb.append("new RiotTextArea('").append(getId()).append("')");
83              if (getMaxLength() != null) {
84                  sb.append(".setMaxLength(").append(getMaxLength()).append(')');
85              }
86              if (rows == null) {
87                  sb.append(".autoResize()");
88              }
89              sb.append(';');
90              return sb.toString();
91          }
92          return null;
93      }
94      
95  }
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