1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 package org.apache.portals.bridges.struts.taglib;
18
19 import javax.servlet.ServletRequest;
20 import javax.servlet.jsp.JspException;
21
22 import org.apache.portals.bridges.struts.PortletServlet;
23 import org.apache.portals.bridges.struts.config.PortletURLTypes;
24
25 /***
26 * Supports the Struts html:link tag to be used within a Portlet context.
27 *
28 * @author <a href="mailto:ate@douma.nu">Ate Douma</a>
29 * @version $Id: LinkTag.java 517068 2007-03-12 01:44:37Z ate $
30 */
31 public class LinkTag extends org.apache.struts.taglib.html.LinkTag
32 {
33 /***
34 * Indicates which type of a url must be generated: action, render or resource.
35 * <p>If not specified, the type will be determined by
36 * {@link PortletURLTypes#getType(String)}</p>.
37 */
38 protected PortletURLTypes.URLType urlType = null;
39
40 /***
41 * @return "true" if an ActionURL must be rendered
42 */
43 public String getActionURL()
44 {
45 return urlType != null && urlType.equals(PortletURLTypes.URLType.ACTION) ? "true" : "false";
46 }
47
48 /***
49 * Render an ActionURL when set to "true"
50 * @param value "true" renders an ActionURL
51 */
52 public void setActionURL(String value)
53 {
54 this.urlType = value != null && value.equalsIgnoreCase("true") ? PortletURLTypes.URLType.ACTION : null;
55 }
56
57 public String getRenderURL()
58 {
59 return urlType != null && urlType.equals(PortletURLTypes.URLType.RENDER) ? "true" : "false";
60 }
61
62 /***
63 * Render a RenderURL when set to "true"
64 * @param value "true" renders a RenderURL
65 */
66 public void setRenderURL(String value)
67 {
68 this.urlType = value != null && value.equalsIgnoreCase("true") ? PortletURLTypes.URLType.RENDER : null;
69 }
70
71 public String getResourceURL()
72 {
73 return urlType != null && urlType.equals(PortletURLTypes.URLType.RESOURCE) ? "true" : "false";
74 }
75
76 /***
77 * Render a ResourceURL when set to "true"
78 * @param value "true" renders a ResourceURL
79 */
80 public void setResourceURL(String value)
81 {
82 this.urlType = value != null && value.equalsIgnoreCase("true") ? PortletURLTypes.URLType.RESOURCE : null;
83 }
84
85 /***
86 * Generates a PortletURL or a ResourceURL for the link when in the context of a
87 * {@link PortletServlet#isPortletRequest(ServletRequest) PortletRequest}, otherwise
88 * the default behaviour is maintained.
89 * @return the link url
90 * @exception JspException if a JSP exception has occurred
91 */
92 protected String calculateURL() throws JspException
93 {
94 if ( PortletServlet.isPortletRequest(pageContext.getRequest() ))
95 {
96 String url = super.calculateURL();
97
98
99 String anchor = null;
100 int hash = url.indexOf('#');
101 if ( hash > -1 )
102 {
103
104 anchor = url.substring(hash);
105 url = url.substring(0,hash);
106 }
107
108 url = TagsSupport.getURL(pageContext, url, urlType);
109
110 if ( anchor != null )
111 {
112 url = url + anchor;
113 }
114 return url;
115 }
116 else
117 {
118 return super.calculateURL();
119 }
120 }
121
122 public void release() {
123
124 super.release();
125 urlType = null;
126 }
127 }