translate time-tracking in login screen and browser title (#738)

src/Twig/DatatableExtensions.php

@@ -0,0 +1,98 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Twig;
+
+use Symfony\Component\HttpFoundation\RequestStack;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class DatatableExtensions extends AbstractExtension
+{
+    /**
+     * @var RequestStack
+     */
+    protected $requestStack;
+
+    /**
+     * @var array
+     */
+    protected $cookies = [];
+
+    /**
+     * @param RequestStack $requestStack
+     */
+    public function __construct(RequestStack $requestStack)
+    {
+        $this->requestStack = $requestStack;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFunctions()
+    {
+        return [
+            new TwigFunction('is_visible_column', [$this, 'isColumnVisible']),
+            new TwigFunction('is_datatable_configured', [$this, 'isDatatableConfigured']),
+        ];
+    }
+
+    /**
+     * @param string $dataTable
+     * @return bool
+     */
+    public function isDatatableConfigured(string $dataTable)
+    {
+        $cookie = $this->getVisibilityCookieName($dataTable);
+
+        return $this->requestStack->getCurrentRequest()->cookies->has($cookie);
+    }
+
+    /**
+     * @param string $dataTable
+     * @return string
+     */
+    protected function getVisibilityCookieName(string $dataTable)
+    {
+        return $dataTable . '_visibility';
+    }
+
+    /**
+     * This is only for datatables, do not use it outside this context.
+     *
+     * @param string $dataTable
+     * @param string $column
+     * @return bool
+     */
+    public function isColumnVisible(string $dataTable, string $column)
+    {
+        // name handling is spread between here and datatables.html.twig (data_table_column_modal)
+        $cookie = $this->getVisibilityCookieName($dataTable);
+
+        if (!isset($this->cookies[$cookie])) {
+            $visibility = false;
+            if ($this->requestStack->getCurrentRequest()->cookies->has($cookie)) {
+                $visibility = json_decode($this->requestStack->getCurrentRequest()->cookies->get($cookie), true);
+            }
+            $this->cookies[$cookie] = $visibility;
+        }
+        $values = $this->cookies[$cookie];
+
+        if (empty($values) || !is_array($values)) {
+            return true;
+        }
+
+        if (isset($values[$column]) && $values[$column] === false) {
+            return false;
+        }
+
+        return true;
+    }
+}