public MenuItemFragment(MenuItem menuItem) {
super("menuItemFragment", "MENU_ITEM_FRAGMENT", MenuPanel.this);
setRenderBodyOnly(true);
// add the menu's label (hyperlinked if a link is provided)
if (menuItem.getLink() != null) {
if (menuItem.getImage() != null) {
if (menuItem.getLabel() != null) {
add(
new LinkImageTextFragment(
menuItem.getLink(), menuItem.getImage(), menuItem.getLabel()));
} else {
add(new LinkImageFragment(menuItem.getLink(), menuItem.getImage()));
}
} else {
add(new LinkFragment(menuItem.getLink(), menuItem.getLabel()));
}
} else {
if (menuItem.getImage() != null) {
if (menuItem.getLabel() == null) {
add(new ImageFragment(menuItem.getImage()));
}
} else {
add(new TextFragment(menuItem.getLabel()));
}
}
WebMarkupContainer menuItemList = new WebMarkupContainer("menuItemList");
add(menuItemList);
// hide the <ul> tag if there are no submenus
menuItemList.setVisible(menuItem.getChildren().size() > 0);
/*
// add a down or right arrow icon if there are children
if (menuItem.getChildren().size() > 0) {
menuItem.getLabel().add(MENU_HAS_SUBMENU_APPENDER);
}
*/
// add the submenus
menuItemList.add(new SubMenuListView("menuItemLinks", menuItem.getChildren()));
}
/**
* Get current {@link MenuItem} based on the <code>request</code> URL
*
* @param request
* @param jspContext
* @param menu
* @return current {@link MenuItem} or <code>null</code> if not match found.
*/
protected MenuItem getItemFromCurrentURL(
HttpServletRequest request, ServletContext jspContext, Menu menu) {
// If request comes from a internal server forward we'll need original
// request URI
// See Servlert 2.4 specification, section SRV.8.4.2 for more
// information
String path = (String) request.getAttribute("javax.servlet.forward.request_uri");
String contextPath;
if (path == null) {
// If isn't a forwarded request so we'll use the original URI
path = request.getRequestURI();
contextPath = request.getContextPath();
} else {
contextPath = (String) request.getAttribute("javax.servlet.forward.context_path");
}
if (path.startsWith(contextPath)) {
path = path.substring(contextPath.length());
}
Enumeration<String> paramNamesEnum = request.getParameterNames();
TreeSet<String> paramNames = new TreeSet<String>();
// We create a new Map because request.getParameterMap() is a map of
// String[].
// In java 1.5 application will throw a ClassCastException if you try
// set
// ParameterMap's value into a String variable.
// In java 1.6 works fine.
Map<String, String> paramValues = new HashMap<String, String>(request.getParameterMap().size());
String paramName;
while (paramNamesEnum.hasMoreElements()) {
paramName = paramNamesEnum.nextElement();
paramNames.add(paramName);
paramValues.put(paramName, request.getParameter(paramName));
}
class StackItem {
Iterator<MenuItem> iterator;
public StackItem(Iterator<MenuItem> childIterator) {
this.iterator = childIterator;
}
}
Stack<StackItem> stack = new Stack<StackItem>();
stack.push(new StackItem(menu.getChildren().iterator()));
StackItem curStackItem;
MenuItem curItem;
while (!stack.isEmpty()) {
curStackItem = stack.pop();
while (curStackItem.iterator.hasNext()) {
curItem = curStackItem.iterator.next();
if (isSameDestination(
request, jspContext, path, paramNames, paramValues, curItem.getUrl())) {
return curItem;
}
if (curItem.hasChildren()) {
stack.push(curStackItem);
stack.push(new StackItem(curItem.getChildren().iterator()));
break;
}
}
}
return null;
}
