class.ilImprintGUI.php

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<?php

use ILIAS\Imprint\StandardGUIRequest;

class ilImprintGUI extends ilPageObjectGUI implements ilCtrlBaseClassInterface
{
    protected StandardGUIRequest $imprint_request;
    protected ilLocatorGUI $locator;

    public function __construct()
    {
        global $DIC;

        $this->tpl = $DIC["tpl"];
        $this->ctrl = $DIC->ctrl();
        $this->locator = $DIC["ilLocator"];
        $this->lng = $DIC->language();

        $this->imprint_request = new StandardGUIRequest(
            $DIC->http(),
            $DIC->refinery()
        );

        if (!ilImprint::_exists("impr", 1)) {
            $page = new ilImprint();
            $page->setId(1);
            $page->create(false);
        }

        // there is only 1 imprint page
        parent::__construct("impr", 1);

        // content style (using system defaults)
        $this->tpl->setCurrentBlock("SyntaxStyle");
        $this->tpl->setVariable(
            "LOCATION_SYNTAX_STYLESHEET",
            ilObjStyleSheet::getSyntaxStylePath()
        );
        $this->tpl->parseCurrentBlock();

        $this->tpl->setCurrentBlock("ContentStyle");
        $this->tpl->setVariable(
            "LOCATION_CONTENT_STYLESHEET",
            ilObjStyleSheet::getContentStylePath(0)
        );
        $this->tpl->parseCurrentBlock();
    }

    public function executeCommand(): string
    {
        if (strtolower($this->imprint_request->getBaseClass()) ===
            strtolower(ilImprintGUI::class)) {
            $this->renderFullscreen();
        }

        $next_class = $this->ctrl->getNextClass($this);

        $title = $this->lng->txt("adm_imprint");

        switch ($next_class) {
            default:
                $this->setPresentationTitle($title);

                $this->locator->addItem(
                    $title,
                    $this->ctrl->getLinkTarget($this, "preview")
                );
                $ret = parent::executeCommand();
                $this->tabs_gui->activateTab("pg");
                return $ret;
        }
    }

    public function postOutputProcessing(string $a_output): string
    {
        $lng = $this->lng;

        if ($this->getOutputMode() == ilPageObjectGUI::PREVIEW) {
            if (!$this->getPageObject()->getActive()) {
                $this->tpl->setOnScreenMessage('info', $lng->txt("adm_imprint_inactive"));
            }
        }

        return $a_output;
    }

    protected function renderFullscreen(): void
    {
        if (!ilImprint::isActive()) {
            $this->ctrl->redirectToURL("ilias.php?baseClass=ilDashboardGUI");
        }
        $this->tpl->setTitle($this->lng->txt("imprint"));
        $this->tpl->loadStandardTemplate();

        $this->setRawPageContent(true);
        $this->tpl->setContent($this->showPage());

        $this->tpl->printToStdout("DEFAULT", true, false);
        exit();
    }
}