preparing for re-design using new template-engine for future 0.11.x releases

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/Froxlor/UI/Panel/FroxlorTwig.php

@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Froxlor\UI\Panel;
+
+class FroxlorTwig extends \Twig\Extension\AbstractExtension
+{
+
+	public function getFilters()
+	{
+		return array(
+			new \Twig\TwigFilter('formatBytes', array(
+				$this,
+				'formatBytesFilter'
+			)),
+			new \Twig\TwigFilter('formatIP', array(
+				$this,
+				'formatIPFilter'
+			)),
+			new \Twig\TwigFilter('idnDecode', array(
+				$this,
+				'idnDecodeFilter'
+			))
+		);
+	}
+
+	public function getTests()
+	{
+		return array(
+			new \Twig\TwigTest('numeric', function ($value) {
+				return is_numeric($value);
+			})
+		);
+	}
+
+	public function getFunctions()
+	{
+		return array(
+			new \Twig\TwigFunction('get_setting', [
+				$this,
+				'getSetting'
+			]),
+			new \Twig\TwigFunction('lng', [
+				$this,
+				'getLang'
+			])
+		);
+	}
+
+	public function formatBytesFilter($size, $suffix = "B", $factor = 1)
+	{
+		$size = $size * $factor;
+		$units = array(
+			'',
+			'K',
+			'M',
+			'G',
+			'T',
+			'P',
+			'E',
+			'Z',
+			'Y'
+		);
+		$power = $size > 0 ? floor(log($size, 1024)) : 0;
+		if ($power < 0) {
+			$size = 0.00;
+			$power = 0;
+		}
+		return number_format($size / pow(1024, $power), 2, '.', ',') . ' ' . $units[$power] . $suffix;
+	}
+
+	public function formatIPFilter($addr)
+	{
+		return inet_ntop(inet_pton($addr));
+	}
+
+	public function idnDecodeFilter($entity)
+	{
+		$idna_convert = new \Froxlor\Idna\IdnaWrapper();
+		return $idna_convert->decode($entity);
+	}
+
+	public function getSetting($setting = null)
+	{
+		return \Froxlor\Settings::Get($setting);
+	}
+
+	public function getLang($identifier = null)
+	{
+		return \Froxlor\UI\Panel\UI::getLng($identifier);
+	}
+
+	/**
+	 *
+	 * {@inheritdoc}
+	 */
+	public function getName()
+	{
+		return 'froxlortwig';
+	}
+}