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1   /**
2    * This file is part of the equanda project.
3    *
4    * The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at http://www.mozilla.org/MPL/
7    *
8    * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
9    * ANY KIND, either express or implied. See the License for the specific language governing rights and
10   * limitations under the License.
11   *
12   * Alternatively, the contents of this file may be used under the terms of
13   * either the GNU General Public License Version 2 or later (the "GPL"), or
14   * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
15   * in which case the provisions of the GPL or the LGPL are applicable instead
16   * of those above. If you wish to allow use of your version of this file only
17   * under the terms of either the GPL or the LGPL, and not to allow others to
18   * use your version of this file under the terms of the MPL, indicate your
19   * decision by deleting the provisions above and replace them with the notice
20   * and other provisions required by the GPL or the LGPL. If you do not delete
21   * the provisions above, a recipient may use your version of this file under
22   * the terms of any one of the MPL, the GPL or the LGPL.
23   */
24  
25  package org.equanda.tapestry5.components;
26  
27  import org.apache.tapestry5.Asset;
28  import org.apache.tapestry5.MarkupWriter;
29  import org.apache.tapestry5.RenderSupport;
30  import org.apache.tapestry5.annotations.AfterRender;
31  import org.apache.tapestry5.annotations.BeginRender;
32  import org.apache.tapestry5.annotations.Environmental;
33  import org.apache.tapestry5.annotations.Path;
34  import org.apache.tapestry5.ioc.annotations.Inject;
35  
36  /**
37   * When this component is added on the page, the tab and enter keys work differently to assure a better user experience.
38   *
39   * @author <a href="mailto:joachim@progs.be">Joachim Van der Auwera</a>
40   */
41  public class FormTraversal
42  {
43      @Inject
44      @Path( "${tapestry.scriptaculous}/prototype.js" )
45      private Asset prototype;
46  
47      @Inject
48      @Path( "classpath:/org/equanda/tapestry5/resources/formtraversal.js" )
49      private Asset script;
50  
51      @Environmental
52      private RenderSupport renderSupport;    
53  
54      @BeginRender
55      boolean doBeginRender( MarkupWriter writer )
56      {
57          renderSupport.addScriptLink( prototype, script );
58          return false;
59      }
60  
61      @AfterRender
62      void doAfterRender( MarkupWriter writer )
63      {
64          renderSupport.addScript( "equandaFtFocus(); equandaFtInit();" );
65      }
66  }