| 1 | package org.apache.pluto.driver.tags; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | |
| 5 | import javax.servlet.http.HttpServletRequest; |
| 6 | import javax.servlet.jsp.JspException; |
| 7 | import javax.servlet.jsp.tagext.TagSupport; |
| 8 | |
| 9 | import org.apache.pluto.PortletWindow; |
| 10 | import org.apache.pluto.driver.AttributeKeys; |
| 11 | |
| 12 | /** |
| 13 | * The portlet header links tag is used to print the dynamic portlet links to |
| 14 | * the page. |
| 15 | */ |
| 16 | public class PortletHeaderLinksTag extends TagSupport { |
| 17 | |
| 18 | // TagSupport Impl --------------------------------------------------------- |
| 19 | |
| 20 | /** |
| 21 | * Method invoked when the start tag is encountered. This method retrieves |
| 22 | * the portlet title and print it to the page. |
| 23 | * |
| 24 | * @see org.apache.pluto.services.PortalCallbackService#setTitle(HttpServletRequest, |
| 25 | * PortletWindow, String) |
| 26 | * @see org.apache.pluto.driver.services.container.PortalCallbackServiceImpl#setTitle(HttpServletRequest, |
| 27 | * PortletWindow, String) |
| 28 | * |
| 29 | * @throws JspException |
| 30 | */ |
| 31 | public int doStartTag() throws JspException { |
| 32 | |
| 33 | // Ensure that the portlet header links tag resides within a portlet tag. |
| 34 | PortletTag parentTag = (PortletTag) TagSupport.findAncestorWithClass(this, PortletTag.class); |
| 35 | if (parentTag == null) { |
| 36 | throw new JspException("Portlet header links tag may only reside within a pluto:portlet tag."); |
| 37 | } |
| 38 | |
| 39 | // Print out the portlet header links to page. |
| 40 | try { |
| 41 | String header = (String) pageContext.getRequest().getAttribute(AttributeKeys.PORTLET_TITLE); |
| 42 | if (header != null) { |
| 43 | pageContext.getOut().print(""/*header*/); |
| 44 | } |
| 45 | } catch (IOException ex) { |
| 46 | throw new JspException(ex); |
| 47 | } |
| 48 | return SKIP_BODY; |
| 49 | } |
| 50 | } |