| 0,0 → 1,63 |
|---|
| package ak.hostadmiral.core.taglib.list; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.jsp.JspException; |
| import javax.servlet.jsp.tagext.Tag; |
| import org.apache.struts.taglib.html.LinkTag; |
| import ak.backpath.BackPath; |
| import ak.hostadmiral.util.CollectionInfo; |
| |
| public class PageLinkTag |
| extends LinkTag |
| { |
| public static String PAGE_PARAM_NAME = "pg"; |
| |
| protected PageIterateTag parent; |
| |
| protected void findParent() |
| throws JspException |
| { |
| Tag p = getParent(); |
| |
| while(p != null && !(p instanceof PageIterateTag)) |
| p = p.getParent(); |
| |
| if(p == null) |
| throw new JspException("This tag must be inside PageIterateTag"); |
| |
| parent = (PageIterateTag)p; |
| } |
| |
| protected BackPath findBackPath() |
| throws JspException |
| { |
| try { |
| return BackPath.findBackPath((HttpServletRequest)pageContext.getRequest(), |
| BackPath.DEFAULT_KEY, BackPath.DEFAULT_PARAM, |
| new String[] { "backpath", PAGE_PARAM_NAME }, |
| BackPath.DEFAULT_ZIP); |
| } |
| catch(Exception ex) { |
| throw new JspException(ex); |
| } |
| } |
| |
| protected String calculateURL() |
| throws JspException |
| { |
| String urlStr = findBackPath().getCurrentUrl(); |
| if(urlStr == null) return "/"; |
| |
| StringBuffer url = new StringBuffer(urlStr); |
| boolean hasParams = (url.indexOf("?") > 0); |
| |
| findParent(); |
| |
| if(hasParams) |
| url.append("&").append(PAGE_PARAM_NAME + "=").append(parent.getDisplayPage()); |
| else |
| url.append("?").append(PAGE_PARAM_NAME + "=").append(parent.getDisplayPage()); |
| |
| return url.toString(); |
| } |
| } |