[UI][TWIG] Fixing note actions placement and size, more descriptive rules

src/Util/Bitmap.php

@@ -0,0 +1,52 @@
+<?php
+
+// {{{ License
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social 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.
+//
+// GNU social 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 GNU social.  If not, see <http://www.gnu.org/licenses/>.
+// }}}
+
+namespace App\Util;
+
+use App\Util\Exception\ServerException;
+
+abstract class Bitmap
+{
+    public static $consts = null;
+
+    public static function bitmapToStrings(int $r): array
+    {
+        $init  = $r;
+        $class = get_called_class();
+        $vals  = [];
+        if (self::$consts == null) {
+            self::$consts = (new \ReflectionClass($class))->getConstants();
+            unset(self::$consts['PREFIX']);
+        }
+
+        foreach (self::$consts as $c => $v) {
+            if (($r & $v) !== 0) {
+                $r -= $v;
+                $vals[] = $class::PREFIX . $c;
+            }
+        }
+
+        if ($r != 0) {
+            Log::error('Bitmap to array conversion failed');
+            throw new ServerException("Bug in bitmap conversion for class {$class} from value {$init}");
+        }
+
+        return $vals;
+    }
+}