ModeToggle.php

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<?php

namespace ILIAS\GlobalScreen\Client;

class ModeToggle
{
    const GS_MODE = 'gs_mode';
    const MODE1 = "all";
    const MODE2 = "none";


    public function getMode() : string
    {
        return isset($_COOKIE[self::GS_MODE]) ? $_COOKIE[self::GS_MODE] : self::MODE1;
    }


    public function saveStateOfAll() : bool
    {
        return $this->getMode() == ItemState::LEVEL_OF_TOOL;
    }


    public function toggle() : void
    {
        $current_mode = $this->getMode();
        $new_mode = $current_mode == self::MODE1 ? self::MODE2 : self::MODE1;
        setcookie(self::GS_MODE, $new_mode, 0, "/");
        $_COOKIE[ItemState::COOKIE_NS_GS] = "";
        header('Location: ' . $_SERVER['HTTP_REFERER']);
    }
}