| 0,0 → 1,50 |
|---|
| package ak.backpath.taglib; |
| |
| import javax.servlet.jsp.JspException; |
| import ak.backpath.BackPath; |
| |
| public class BackwardLinkTag extends LinkTagBase |
| { |
| protected boolean skipEmpty = true; |
| |
| public boolean getSkipEmpty() |
| { |
| return this.skipEmpty; |
| } |
| |
| public void setSkipEmpty(boolean skipEmpty) |
| { |
| this.skipEmpty = skipEmpty; |
| } |
| |
| public int doStartTag() throws JspException |
| { |
| if(!skipEmpty || findBackPath().getHasBack()) |
| return super.doStartTag(); |
| else |
| return SKIP_BODY; |
| } |
| |
| public int doAfterBody() throws JspException |
| { |
| if(!skipEmpty || findBackPath().getHasBack()) |
| return super.doAfterBody(); |
| else |
| return SKIP_BODY; |
| } |
| |
| public int doEndTag() throws JspException |
| { |
| if(!skipEmpty || findBackPath().getHasBack()) |
| return super.doEndTag(); |
| else |
| return EVAL_PAGE; |
| } |
| |
| protected String calculateURL() throws JspException |
| { |
| String url = findBackPath().getBackwardUrl(); |
| if(url == null) url = "/"; |
| return url; |
| } |
| } |