protected List<NavItem> getNavItems(List<NavItem> branchNavItems) throws Exception {
ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
List<NavItem> navItems = new ArrayList<>();
NavItem rootNavItem = null;
if (_rootLayoutType.equals("relative")) {
if ((_rootLayoutLevel >= 0) && (_rootLayoutLevel < branchNavItems.size())) {
rootNavItem = branchNavItems.get(_rootLayoutLevel);
}
} else if (_rootLayoutType.equals("absolute")) {
int ancestorIndex = branchNavItems.size() - _rootLayoutLevel;
if ((ancestorIndex >= 0) && (ancestorIndex < branchNavItems.size())) {
rootNavItem = branchNavItems.get(ancestorIndex);
} else if (ancestorIndex == branchNavItems.size()) {
navItems = NavItem.fromLayouts(request, themeDisplay.getLayouts(), null);
}
} else if (_rootLayoutType.equals("select")) {
Layout layout = themeDisplay.getLayout();
if (Validator.isNotNull(_rootLayoutUuid)) {
Layout rootLayout =
LayoutLocalServiceUtil.getLayoutByUuidAndGroupId(
_rootLayoutUuid, layout.getGroupId(), layout.isPrivateLayout());
rootNavItem = new NavItem(request, rootLayout, null);
} else {
navItems = NavItem.fromLayouts(request, themeDisplay.getLayouts(), null);
}
}
if (rootNavItem != null) {
navItems = rootNavItem.getChildren();
}
return navItems;
}
