class.ilRSSButtonGUI.php

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<?php

class ilRSSButtonGUI
{
    public const ICON_RSS = "rss";
    public const ICON_RSS_AUDIO = "rss audio";
    public const ICON_RSS_VIDEO = "rss video";
    public const ICON_ICAL = "ical";
    public const ICON_ITUNES = "itunes";
    public const ICON_ITUNES_AUDIO = "itunes audio";
    public const ICON_ITUNES_VIDEO = "itunes video";

    public static function get(
        string $a_type,
        string $a_href = ""
    ): string {
        $tpl = new ilTemplate("tpl.rss_icon.html", true, true, "components/ILIAS/News");

        if ($a_href !== "") {
            $tpl->setCurrentBlock("a_start");
            $tpl->setVariable("HREF", $a_href);
            $tpl->parseCurrentBlock();
            $tpl->touchBlock("a_end");
        }

        $text = "";

        switch ($a_type) {
            case self::ICON_RSS:
                $text = "RSS";
                break;

            case self::ICON_RSS_AUDIO:
                $text = "RSS Audio";
                break;

            case self::ICON_RSS_VIDEO:
                $text = "RSS Video";
                break;

            case self::ICON_ICAL:
                $text = "iCal";
                break;

            case self::ICON_ITUNES:
                $text = "iTunes";
                break;

            case self::ICON_ITUNES_AUDIO:
                $text = "iTunes Audio";
                break;

            case self::ICON_ITUNES_VIDEO:
                $text = "iTunes Video";
                break;
        }

        $tpl->setVariable("TEXT", $text);

        return $tpl->get();
    }
}