class.ilSystemStyleMainGUI.php

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<?php
include_once("Services/Object/exceptions/class.ilObjectException.php");

/* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilSystemStyleMainGUI
{
    protected $ctrl;

    protected $lng;


    protected $DIC;

    protected $tabs;


    protected $rbacsystem;

    protected $ref_id;

    protected $tpl;

    public function __construct()
    {
        global $DIC;

        $this->ctrl = $DIC->ctrl();
        $this->lng = $DIC->language();
        $this->tabs = $DIC->tabs();
        $this->rbacsystem = $DIC->rbac()->system();
        $this->tpl = $DIC["tpl"];
        $this->help =

        $this->ref_id = (int) $_GET["ref_id"];
    }


    public function executeCommand()
    {
        global $DIC;


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

        $DIC->help()->setScreenIdComponent("sty");
        $DIC->help()->setScreenId("system_styles");

        if (!$_GET["skin_id"]) {
            $config = new ilSystemStyleConfig();
            $_GET["skin_id"] = $config->getDefaultSkinId();
            $_GET["style_id"] = $config->getDefaultStyleId();
        }

        $this->ctrl->setParameterByClass('ilsystemstylesettingsgui', 'skin_id', $_GET["skin_id"]);
        $this->ctrl->setParameterByClass('ilsystemstylesettingsgui', 'style_id', $_GET["style_id"]);
        $this->ctrl->setParameterByClass('ilsystemstylelessgui', 'skin_id', $_GET["skin_id"]);
        $this->ctrl->setParameterByClass('ilsystemstylelessgui', 'style_id', $_GET["style_id"]);
        $this->ctrl->setParameterByClass('ilsystemstyleiconsgui', 'skin_id', $_GET["skin_id"]);
        $this->ctrl->setParameterByClass('ilsystemstyleiconsgui', 'style_id', $_GET["style_id"]);
        $this->ctrl->setParameterByClass('ilsystemstyledocumentationgui', 'skin_id', $_GET["skin_id"]);
        $this->ctrl->setParameterByClass('ilsystemstyledocumentationgui', 'style_id', $_GET["style_id"]);

        try {
            switch ($next_class) {

                case "ilsystemstylesettingsgui":
                    $DIC->help()->setSubScreenId("settings");
                    $this->checkPermission("sty_management");
                    $this->setUnderworldTabs('settings');
                    $this->setUnderworldTitle();
                    include_once("Settings/class.ilSystemStyleSettingsGUI.php");
                    $system_styles_settings = new ilSystemStyleSettingsGUI();
                    $this->ctrl->forwardCommand($system_styles_settings);
                    break;
                case "ilsystemstylelessgui":
                    $DIC->help()->setSubScreenId("less");
                    $this->checkPermission("sty_management");
                    $this->setUnderworldTabs('less');
                    $this->setUnderworldTitle();
                    include_once("Less/class.ilSystemStyleLessGUI.php");
                    $system_styles_less = new ilSystemStyleLessGUI();
                    $this->ctrl->forwardCommand($system_styles_less);
                    break;
                case "ilsystemstyleiconsgui":
                    $DIC->help()->setSubScreenId("icons");
                    $this->checkPermission("sty_management");
                    $this->setUnderworldTabs('icons');
                    $this->setUnderworldTitle();
                    include_once("Icons/class.ilSystemStyleIconsGUI.php");
                    $system_styles_icons = new ilSystemStyleIconsGUI();
                    $this->ctrl->forwardCommand($system_styles_icons);
                    break;
                case "ilsystemstyledocumentationgui":
                    $DIC->help()->setSubScreenId("documentation");
                    $read_only = !$this->checkPermission("sty_management", false);
                    $this->setUnderworldTabs('documentation');
                    $this->setUnderworldTitle();
                    include_once("Documentation/class.ilSystemStyleDocumentationGUI.php");
                    $system_styles_documentation = new ilSystemStyleDocumentationGUI($read_only);
                    $this->ctrl->forwardCommand($system_styles_documentation);
                    break;
                case "ilsystemstyleoverviewgui":
                default:
                $DIC->help()->setSubScreenId("overview");
                    $this->checkPermission("visible,read");
                    include_once("Overview/class.ilSystemStyleOverviewGUI.php");
                    $system_styles_overview = new ilSystemStyleOverviewGUI(!$this->checkPermission("sty_write_system", false), $this->checkPermission("sty_management", false));
                    $this->ctrl->forwardCommand($system_styles_overview);
                    break;
            }
        } catch (ilObjectException $e) {
            ilUtil::sendFailure($e->getMessage());
            $this->checkPermission("visible,read");
            include_once("Overview/class.ilSystemStyleOverviewGUI.php");
            $this->ctrl->setCmd("");
            $system_styles_overview = new ilSystemStyleOverviewGUI(!$this->checkPermission("sty_write_system", false), $this->checkPermission("sty_management", false));
            $this->ctrl->forwardCommand($system_styles_overview);
        }
    }

    public static function _goto($ref_id, $params)
    {
        global $DIC;

        $node_id = $params[2];
        $skin_id = $params[3];
        $style_id = $params[4];

        $DIC->ctrl()->setParameterByClass('ilSystemStyleDocumentationGUI', 'skin_id', $skin_id);
        $DIC->ctrl()->setParameterByClass(
            'ilSystemStyleDocumentationGUI',
            'style_id',
            $style_id
        );
        $DIC->ctrl()->setParameterByClass('ilSystemStyleDocumentationGUI', 'node_id', $node_id);
        $DIC->ctrl()->setParameterByClass('ilSystemStyleDocumentationGUI', 'ref_id', $ref_id);

        $_GET['baseClass'] = 'ilAdministrationGUI';

        $cmd = "entries";
        $cmd_classes = [
                "ilAdministrationGUI",
                "ilObjStyleSettingsGUI",
                "ilSystemStyleMainGUI",
                'ilSystemStyleDocumentationGUI'
        ];

        $DIC->ctrl()->setTargetScript("ilias.php");
        $DIC->ctrl()->redirectByClass($cmd_classes, $cmd);
    }

    public function checkPermission($a_perm, $a_throw_exc = true)
    {
        global $DIC;

        $has_perm = true;

        $config = new ilSystemStyleConfig();
        if ($a_perm == "sty_management") {
            $has_perm = $DIC->iliasIni()->readVariable("tools", "enable_system_styles_management") == "1" ? true:false;
            $a_perm = "sty_write_system";
            if ($has_perm && !is_writable($config->getCustomizingSkinPath())) {
                ilUtil::sendFailure($this->lng->txt("enable_system_styles_management_no_write_perm"));
                $has_perm = false;
            }
        }

        if ($has_perm) {
            $has_perm = $this->rbacsystem->checkAccess($a_perm, $this->ref_id);
        }

        if (!$has_perm) {
            if ($a_throw_exc) {
                include_once "Services/Object/exceptions/class.ilObjectException.php";
                throw new ilObjectException($this->lng->txt("sty_permission_denied"));
            }
            return false;
        }
        return $has_perm;
    }

    protected function setUnderworldTabs($active = "")
    {
        global $DIC;
        $this->tabs->clearTargets();

        $DIC->help()->setScreenIdComponent("sty");
        $DIC->help()->setScreenId("system_styles");
        $this->tabs->setBackTarget($this->lng->txt("back"), $this->ctrl->getLinkTarget($this));
        $config = new ilSystemStyleConfig();
        if ($_GET["skin_id"] != $config->getDefaultSkinId()) {
            $this->tabs->addTab('settings', $this->lng->txt('settings'), $this->ctrl->getLinkTargetByClass('ilsystemstylesettingsgui'));
            $this->tabs->addTab('less', $this->lng->txt('less'), $this->ctrl->getLinkTargetByClass('ilsystemstylelessgui'));
            $this->tabs->addTab('icons', $this->lng->txt('icons'), $this->ctrl->getLinkTargetByClass('ilsystemstyleiconsgui'));
        }

        $this->tabs->addTab('documentation', $this->lng->txt('documentation'), $this->ctrl->getLinkTargetByClass('ilsystemstyledocumentationgui'));

        $this->tabs->activateTab($active);
    }


    protected function setUnderworldTitle()
    {
        $skin_id = $_GET["skin_id"];
        $style_id = $_GET["style_id"];

        $skin = ilSystemStyleSkinContainer::generateFromId($skin_id)->getSkin();
        $style = $skin->getStyle($style_id);

        $this->tpl->setTitle($style->getName());
        if ($style->isSubstyle()) {
            $this->tpl->setDescription(
                $this->lng->txt("settings_of_substyle") . " '" . $style->getName() . "' " .
                    $this->lng->txt("of_parent") . " '" . $skin->getStyle($style->getSubstyleOf())->getName() . "' " .
                    $this->lng->txt("from_skin") . " " . $skin->getName()
            );
        } else {
            $this->tpl->setDescription(
                $this->lng->txt("settings_of_style") . " '" . $style->getName() . "' " .
                    $this->lng->txt("from_skin") . " '" . $skin->getName() . "'"
            );
        }
    }
}