IfNotCurrentPageTag


1   package org.jahia.deprecated.taglibs.field.page;
2   
3   import java.io.IOException  ;
4   
5   import javax.servlet.ServletRequest  ;
6   import javax.servlet.jsp.JspWriter  ;
7   import javax.servlet.jsp.tagext.BodyContent  ;
8   import javax.servlet.jsp.tagext.BodyTagSupport  ;
9   
10  import org.jahia.data.JahiaData;
11  import org.jahia.services.pages.JahiaPage;
12  import org.jahia.utils.JahiaConsole;
13  
14  
15  /**
16   * Class IfNotCurrentPageTag : evaluates the body only if the page contained in the
17   *                             enclosing PageFieldTag is not the current page.
18   *                             This tag is the "else" part of the "IfCurrentPage" tag.
19   *                             This tag must be enclosed inside a PageField tag.
20   *
21   * @author  Jerome Tamiotti
22   */
23  public class IfNotCurrentPageTag extends BodyTagSupport   {
24  
25  
26      public int doStartTag() {
27  
28          // looks for the enclosing PageField tag
29          PageFieldTag parent = (PageFieldTag) findAncestorWithClass(this, PageFieldTag.class);
30          if (parent == null) {
31              return SKIP_BODY;
32          }
33          JahiaPage thePage = parent.getPage();
34          if (thePage != null) {
35  
36              ServletRequest   request = pageContext.getRequest();
37              JahiaData jData = (JahiaData) request.getAttribute("org.jahia.data.JahiaData");
38              if (jData.page().getID() != thePage.getID()) {
39                  return EVAL_BODY_INCLUDE;
40              }
41          }
42          return SKIP_BODY;
43      }
44  
45  
46      public int doAfterBody() {
47  
48          try {
49              BodyContent   body = getBodyContent();
50              if ( body != null ){
51                  JspWriter   out = body.getEnclosingWriter();
52                  out.print(body.getString());
53              }
54          } catch (IOException   ioe) {
55              JahiaConsole.println("IfNotCurrentPageTag: doAfterBody ", ioe.toString());
56          }
57          return SKIP_BODY;
58      }
59  }
60
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