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1   /*
2    * $Id: AbstractValidateBean.java 651946 2008-04-27 13:41:38Z apetrelli $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  package org.apache.struts2.dojo.components;
23  
24  import javax.servlet.http.HttpServletRequest;
25  import javax.servlet.http.HttpServletResponse;
26  
27  import org.apache.struts2.components.Form;
28  import org.apache.struts2.views.annotations.StrutsTagAttribute;
29  
30  import com.opensymphony.xwork2.util.ValueStack;
31  
32  /***
33   * Base class for tags that perform AJAX validation
34   */
35  public abstract class AbstractValidateBean extends AbstractRemoteBean {
36      protected String validate;
37      protected String ajaxAfterValidation;
38      
39      public AbstractValidateBean(ValueStack stack, HttpServletRequest request, HttpServletResponse response) {
40          super(stack, request, response);
41      }
42      
43      public void evaluateExtraParams() {
44          super.evaluateExtraParams();
45  
46          if (validate != null) 
47              addParameter("validate", findValue(validate, Boolean.class));
48          if (ajaxAfterValidation != null)
49              addParameter("ajaxAfterValidation", findValue(ajaxAfterValidation, Boolean.class));
50          
51          Form form = (Form) findAncestor(Form.class);
52          if (form != null) 
53              addParameter("parentTheme", form.getTheme());
54      }
55      
56      @StrutsTagAttribute(description = "Perform Ajax validation. 'ajaxValidation' interceptor must be applied to action", type="Boolean", 
57          defaultValue = "false")
58      public void setValidate(String validate) {
59          this.validate = validate;
60      }
61      
62      @StrutsTagAttribute(description = "Make an asynchronous request if validation succeeds. Only valid if 'validate' is 'true'", type="Boolean", 
63          defaultValue = "false")
64      public void setAjaxAfterValidation(String ajaxAfterValidation) {
65          this.ajaxAfterValidation = ajaxAfterValidation;
66      }
67  }