Dynamic Item Preview

<?
// setup paginated user adapter.
$adapter    = new Zend_Paginator_Adapter_Iterator($this->items);
$paginator  = new Zend_Paginator($adapter);
$paginator->setCurrentPageNumber($this->pageOffset);
$paginator->setItemCountPerPage($this->pageSize);

// serve dojo data to populate the data grid.
$view     = $this;
$types    = P4Cms_Navigation_PageTypeHandler::fetchAll();
$defaults = P4Cms_Menu::getDefaultMenuIds();
$data     = $this->dataGrid()->dojoData(
    $paginator,
    function ($mixed) use ($types, $defaults, $view) {
        $type      = $mixed->getType();        
        $typeLabel = isset($types[$type])
            ? $types[$type]->getLabel()
            : end(explode('_', $type));

        $item              = $mixed->toArray();
        $item['typeLabel'] = $typeLabel;
        
        // flag default menus so we know they can be reset.
        if (!$mixed->hasMenuItem() && in_array($mixed->getId(), $defaults)) {
            $item['isDefaultMenu'] = true;
        }

        // include URL for any items which have one
        if ($mixed->hasMenuItem() && $mixed->getMenuItem()->getHref()) {
            $item['href'] = $mixed->getMenuItem()->getHref();
        }

        // add tooltip preview for dynamic menu items
        if ($mixed->hasMenuItem() 
            && $mixed->getMenuItem() instanceof P4Cms_Navigation_Page_Dynamic
        ) {
            // set max-depth and max-items from menu item options if they are set (limit to
            // max 5 items total) or provide default values otherwise
            $menuItem   = $mixed->getMenuItem();
            $maxDepth   = is_numeric($menuItem->get('maxDepth')) ? $menuItem->get('maxDepth') : null;
            $maxItems   = is_numeric($menuItem->get('maxItems')) ? min($menuItem->get('maxItems'), 5) : 5;

            // get the expanded container for the dynamic menu item
            // note, we ask for one more item than we want so that we 
            // can determine if there are any left overs.
            $menu       = new P4Cms_Menu;
            $options    = array(
                P4Cms_Menu::MENU_MAX_ITEMS => $maxItems + 1,
                P4Cms_Menu::MENU_MAX_DEPTH => $maxDepth
            );
            $container  = $menu->addPage($mixed->getMenuItem())
                               ->getExpandedContainer($options);
            $totalCount = $menu->recursiveCount($container);
            $finalCount = $menu->trimContainer($container, $maxDepth, $maxItems);
            
            // create the tooltip contents.
            if ($container->hasPages()) {
                $tooltip = $view->menu()->renderMenu($container);
                if ($totalCount > $finalCount) {
                    $tooltip .= "<p class=more>...</p>";
                }
            } else {
                $tooltip = '<p class=empty>No Items</p>';
            }
            
            $item['tooltip'] = '<h1>Dynamic Item Preview</h1>' . $tooltip;
        }

        return $item;
    }
);

// append number of total obligatory items
$data->setMetadata(
    'numObligatoryRows',
    $this->items->filter(
        'obligatory',
        true,
        array(P4_Model_Iterator::FILTER_COPY)
    )->count()
);

print $data;