first commit

modules/mod_custom/tmpl/default.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * @package     Joomla.Site
+ * @subpackage  mod_custom
+ *
+ * @copyright   (C) 2009 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\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Uri\Uri;
+
+$modId = 'mod-custom' . $module->id;
+
+if ($params->get('backgroundimage')) {
+    /** @var Joomla\CMS\WebAsset\WebAssetManager $wa */
+    $wa = Factory::getApplication()->getDocument()->getWebAssetManager();
+    $wa->addInlineStyle('
+#' . $modId . '{background-image: url("' . Uri::root(true) . '/' . HTMLHelper::_('cleanImageURL', $params->get('backgroundimage'))->url . '");}
+', ['name' => $modId]);
+}
+
+?>
+
+<div id="<?php echo $modId; ?>" class="mod-custom custom">
+    <?php echo $module->content; ?>
+</div>