Method commonCategoryDisplay

/**
 * Method with common display elements used in category list displays
 *
 * @return  void
 *
 * @since   3.2
 */
public function commonCategoryDisplay()
{
    $app = Factory::getApplication();
    $user = Factory::getUser();
    $params = $app->getParams();
    // Get some data from the models
    $model = $this->getModel();
    $paramsModel = $model->getState('params');
    $paramsModel->set('check_access_rights', 0);
    $model->setState('params', $paramsModel);
    $state = $this->get('State');
    $category = $this->get('Category');
    $children = $this->get('Children');
    $parent = $this->get('Parent');
    if ($category == false) {
        throw new \InvalidArgumentException(Text::_('JGLOBAL_CATEGORY_NOT_FOUND'), 404);
    }
    if ($parent == false) {
        throw new \InvalidArgumentException(Text::_('JGLOBAL_CATEGORY_NOT_FOUND'), 404);
    }
    // Check whether category access level allows access.
    $groups = $user->getAuthorisedViewLevels();
    if (!\in_array($category->access, $groups)) {
        throw new \RuntimeException(Text::_('JERROR_ALERTNOAUTHOR'), 403);
    }
    $items = $this->get('Items');
    $pagination = $this->get('Pagination');
    // Check for errors.
    if (\count($errors = $this->get('Errors'))) {
        throw new GenericDataException(implode("\n", $errors), 500);
    }
    // Setup the category parameters.
    $cparams = $category->getParams();
    $category->params = clone $params;
    $category->params->merge($cparams);
    $children = array($category->id => $children);
    // Escape strings for HTML output
    $this->pageclass_sfx = htmlspecialchars($params->get('pageclass_sfx', ''));
    if ($this->runPlugins) {
        PluginHelper::importPlugin('content');
        foreach ($items as $itemElement) {
            $itemElement = (object) $itemElement;
            $itemElement->event = new \stdClass();
            // For some plugins.
            !empty($itemElement->description) ? $itemElement->text = $itemElement->description : ($itemElement->text = '');
            Factory::getApplication()->triggerEvent('onContentPrepare', [$this->extension . '.category', &$itemElement, &$itemElement->params, 0]);
            $results = Factory::getApplication()->triggerEvent('onContentAfterTitle', [$this->extension . '.category', &$itemElement, &$itemElement->core_params, 0]);
            $itemElement->event->afterDisplayTitle = trim(implode("\n", $results));
            $results = Factory::getApplication()->triggerEvent('onContentBeforeDisplay', [$this->extension . '.category', &$itemElement, &$itemElement->core_params, 0]);
            $itemElement->event->beforeDisplayContent = trim(implode("\n", $results));
            $results = Factory::getApplication()->triggerEvent('onContentAfterDisplay', [$this->extension . '.category', &$itemElement, &$itemElement->core_params, 0]);
            $itemElement->event->afterDisplayContent = trim(implode("\n", $results));
            if ($itemElement->text) {
                $itemElement->description = $itemElement->text;
            }
        }
    }
    $maxLevel = $params->get('maxLevel', -1) < 0 ? PHP_INT_MAX : $params->get('maxLevel', PHP_INT_MAX);
    $this->maxLevel =& $maxLevel;
    $this->state =& $state;
    $this->items =& $items;
    $this->category =& $category;
    $this->children =& $children;
    $this->params =& $params;
    $this->parent =& $parent;
    $this->pagination =& $pagination;
    $this->user =& $user;
    // Check for layout override only if this is not the active menu item
    // If it is the active menu item, then the view and category id will match
    $active = $app->getMenu()->getActive();
    if ($active && $active->component == $this->extension && isset($active->query['view'], $active->query['id']) && $active->query['view'] === 'category' && $active->query['id'] == $this->category->id) {
        if (isset($active->query['layout'])) {
            $this->setLayout($active->query['layout']);
        }
        $this->menuItemMatchCategory = true;
    } elseif ($layout = $category->params->get('category_layout')) {
        $this->setLayout($layout);
    }
    $this->category->tags = new TagsHelper();
    $this->category->tags->getItemTags($this->extension . '.category', $this->category->id);
}