class.ilFavouritesListGUI.php

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<?php

declare(strict_types=1);

class ilFavouritesListGUI extends ilSelectedItemsBlockGUI
{
    protected ILIAS\DI\UIServices $ui;
    protected ilCtrl $ctrl;
    protected ilLanguage $lng;
    protected ilSelectedItemsBlockGUI $favoritesManager;

    public function __construct(?ilObjUser $user = null)
    {
        global $DIC;

        if (is_null($user)) {
            $user = $DIC->user();
        }

        $settings = new ilPDSelectedItemsBlockViewSettings($user);
        $settings->parse();
        $this->ui = $DIC->ui();
        $this->ctrl = $DIC->ctrl();
        $this->lng = $DIC->language();
        $this->favoritesManager = new ilSelectedItemsBlockGUI();
        $this->lng->loadLanguageModule('rep');

    }

    public function render(): string
    {
        $f = $this->ui->factory();
        $items = [];
        foreach ($this->favoritesManager->getItemGroups() as $key => $group) {
            foreach ($group as $item) {
                $items[] = $f->item()->standard(
                    $f->link()->standard($item->getTitle(), ilLink::_getLink($item->getRefId()))
                )->withLeadIcon($f->symbol()->icon()->custom(ilObject::_getIcon((int) $item->getObjId()), $item->getTitle()));
            }
        }
        return $items === [] ? '' : $this->ui->renderer()->render($f->panel()->secondary()->listing('', [$f->item()->group('', $items)]));
    }
}