class.ilWikiHandlerGUI.php

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<?php

class ilWikiHandlerGUI implements ilCtrlBaseClassInterface
{
    protected string $requested_lang;
    protected \ILIAS\Wiki\InternalDomainService $domain;
    protected string $requested_page;
    protected int $requested_ref_id;
    protected ilCtrl $ctrl;
    protected ilLanguage $lng;
    protected ilAccessHandler $access;
    protected ilGlobalTemplateInterface $tpl;
    protected ilNavigationHistory $nav_history;

    public function __construct()
    {
        global $DIC;

        $this->lng = $DIC->language();
        $this->access = $DIC->access();
        $this->tpl = $DIC["tpl"];
        $this->nav_history = $DIC["ilNavigationHistory"];
        $ilCtrl = $DIC->ctrl();


        // initialisation stuff
        $this->ctrl = $ilCtrl;
        $this->domain = $DIC->wiki()->internal()->domain();
        $request = $DIC
            ->wiki()
            ->internal()
            ->gui()
            ->request();
        $this->requested_ref_id = $request->getRefId();
        $this->requested_page = $request->getPage();
        $this->requested_lang = $request->getTranslation();

        $DIC->globalScreen()->tool()->context()->claim()->repository();
    }

    public function executeCommand(): void
    {
        $ilAccess = $this->access;
        $tpl = $this->tpl;
        $ilNavigationHistory = $this->nav_history;
        $lang = ($this->requested_lang === "")
            ? "-"
            : $this->requested_lang;

        $next_class = $this->ctrl->getNextClass($this);
        if ($next_class == "") {
            $this->ctrl->saveParameterByClass(ilObjWikiGUI::class, "ref_id");
            $this->ctrl->redirectByClass(ilObjWikiGUI::class, $this->ctrl->getCmd());
        }

        // add entry to navigation history
        if ($ilAccess->checkAccess("read", "", $this->requested_ref_id)) {
            $pm = $this->domain->page()->page($this->requested_ref_id);
            $obj_id = ilObject::_lookupObjId($this->requested_ref_id);
            $title = ilObject::_lookupTitle($obj_id);
            $link = $pm->getPermaLinkByTitle(
                $this->requested_page,
                $lang
            );

            $page_id = (int) $pm->getPageIdForTitle($this->requested_page, $lang);
            if ($page_id > 0) {
                $ptitle = $pm->getTitle($page_id, $lang);
                $title .= ": " . $ptitle;

                $ilNavigationHistory->addItem(
                    $this->requested_ref_id,
                    $link,
                    "wiki",
                    $title,
                    $page_id,
                    $link
                );
            }
        }

        switch ($next_class) {
            case 'ilobjwikigui':
                $mc_gui = new ilObjWikiGUI(
                    "",
                    $this->requested_ref_id,
                    true,
                    false
                );
                $this->ctrl->forwardCommand($mc_gui);
                break;
        }

        $tpl->printToStdout();
    }
}