/**
* Visit a block and return the resulting GUI component.
*
* @param object NavBlockSiteComponent $navBlock
* @return ref array
* @access public
* @since 4/3/06
*/
public function visitNavBlock(NavBlockSiteComponent $navBlock)
{
$authZ = Services::getService("AuthZ");
$idManager = Services::getService("Id");
// Since view AZs cascade up, just check at the node.
if (!$authZ->isUserAuthorized($idManager->getId("edu.middlebury.authorization.view"), $idManager->getId($navBlock->getId()))) {
return false;
}
$menuItems = array();
// Create the menu item
$title = $navBlock->getTitleMarkup();
if (!$title) {
$title = _("Untitled");
}
$menuItems[] = new MenuItemLinkWithAdditionalHtml($title, $this->getUrlForComponent($navBlock->getId()), $navBlock->isActive(), 1, null, null, $navBlock->getDescription(), $this->getAdditionalNavHTML($navBlock));
// Traverse our child organizer, and place it in the _missingTargets array
// if our target is not available.
if ($navBlock->isActive()) {
$childOrganizer = $navBlock->getOrganizer();
$childGuiComponent = $childOrganizer->acceptVisitor($this);
if (isset($this->_emptyCellContainers[$navBlock->getTargetId()])) {
$this->_emptyCellContainers[$navBlock->getTargetId()]->insertAtPlaceholder($this->_emptyCellPlaceholders[$navBlock->getTargetId()], $childGuiComponent, $childOrganizer->getWidth(), '100%', null, TOP);
unset($this->_emptyCellContainers[$navBlock->getTargetId()], $this->_emptyCellPlaceholders[$navBlock->getTargetId()]);
} else {
$this->_missingTargets[$navBlock->getTargetId()] = $childGuiComponent;
$this->_missingTargetWidths[$navBlock->getTargetId()] = $childOrganizer->getWidth();
}
$nestedMenuOrganizer = $navBlock->getNestedMenuOrganizer();
if (!is_null($nestedMenuOrganizer)) {
$this->_menuNestingLevel++;
$menuItems[] = $nestedMenuOrganizer->acceptVisitor($this);
} else {
$this->_menuNestingLevel = 0;
}
}
// return the menu items
return $menuItems;
}
