class.ilOrgUnitExtensionGUI.php

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<?php
abstract class ilOrgUnitExtensionGUI extends ilObjectPluginGUI
{
    protected ilLocatorGUI $ilLocator;
    protected ilGlobalTemplateInterface $tpl;

    public function __construct(int $a_ref_id = 0, int $a_id_type = self::REPOSITORY_NODE_ID, int $a_parent_node_id = 0)
    {
        global $DIC;
        parent::__construct($a_ref_id, $a_id_type, $a_parent_node_id);
        $this->ilLocator = $DIC['ilLocator'];
        $this->tpl = $DIC->ui()->mainTemplate();

        $this->showTree();
    }

    protected function supportsExport(): bool
    {
        return false;
    }

    protected function lookupParentTitleInCreationMode(): string
    {
        $parent = parent::lookupParentTitleInCreationMode();
        if ($parent == '__OrgUnitAdministration') {
            return $this->lng->txt("objs_orgu");
        }

        return $parent;
    }

    protected function supportsCloning(): bool
    {
        return false;
    }

    protected function setLocator(): void
    {
        if ($this->getCreationMode()) {
            $endnode_id = $this->parent_id;
        } else {
            $endnode_id = $this->ref_id;
        }

        $path = $this->tree->getPathFull($endnode_id, ilObjOrgUnit::getRootOrgRefId());
        // add item for each node on path
        foreach ((array) $path as $key => $row) {
            if ($row["title"] == "__OrgUnitAdministration") {
                $row["title"] = $this->lng->txt("objs_orgu");
            }
            $this->ctrl->setParameterByClass("ilobjorgunitgui", "ref_id", $row["child"]);
            $this->ilLocator->addItem($row["title"], $this->ctrl->getLinkTargetByClass(array(
                "iladministrationgui",
                "ilobjorgunitgui",
            ), "view"), ilFrameTargetInfo::_getFrame("MainContent"), $row["child"]);
            $this->ctrl->setParameterByClass("ilobjplugindispatchgui", "ref_id", $_GET["ref_id"]);
        }
        $this->tpl->setLocator();
    }

    public function showTree(): void
    {
        $this->ctrl->setParameterByClass("ilObjPluginDispatchGUI", "ref_id", $_GET["ref_id"]);
        $this->ctrl->setParameterByClass("ilObjOrgUnitGUI", "ref_id", $_GET["ref_id"]);
        $tree = new ilOrgUnitExplorerGUI(
            "orgu_explorer",
            array("ilAdministrationGUI", "ilObjOrgUnitGUI"),
            "showTree",
            new ilTree(1)
        );
        $tree->setTypeWhiteList($this->getTreeWhiteList());
        if (!$tree->handleCommand()) {
            $this->tpl->setLeftNavContent($tree->getHTML());
        }
    }

    protected function getTreeWhiteList(): array
    {
        $whiteList = array("orgu");
        $pls = ilOrgUnitExtension::getActivePluginIdsForTree();

        return array_merge($whiteList, $pls);
    }
}