Added basic label generation dialog.

src/Twig/DataInlinerExtension.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Twig;
+
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class DataInlinerExtension extends AbstractExtension
+{
+    public function getFunctions()
+    {
+        return [
+            new TwigFunction('inlineData', [$this, 'inlineData'])
+        ];
+    }
+
+    public function inlineData(string $data, string $mime_type)
+    {
+        return 'data:' . $mime_type . ';base64,' . base64_encode($data);
+    }
+}