first commit

templates/cassiopeia/html/mod_menu/collapse-metismenu.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * @package     Joomla.Site
+ * @subpackage  mod_menu
+ *
+ * @copyright   (C) 2021 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Language\Text;
+
+HTMLHelper::_('bootstrap.collapse');
+?>
+
+<nav class="navbar navbar-expand-lg" aria-label="<?php echo htmlspecialchars($module->title, ENT_QUOTES, 'UTF-8'); ?>">
+    <button class="navbar-toggler navbar-toggler-right" type="button" data-bs-toggle="collapse" data-bs-target="#navbar<?php echo $module->id; ?>" aria-controls="navbar<?php echo $module->id; ?>" aria-expanded="false" aria-label="<?php echo Text::_('MOD_MENU_TOGGLE'); ?>">
+        <span class="icon-menu" aria-hidden="true"></span>
+    </button>
+    <div class="collapse navbar-collapse" id="navbar<?php echo $module->id; ?>">
+        <?php require __DIR__ . '/dropdown-metismenu.php'; ?>
+    </div>
+</nav>