Add UIBlocks to twig (Spinner)

sources/application/UI/Base/Component/Spinner/Spinner.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * @copyright   Copyright (C) 2010-2021 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Application\UI\Base\Component\Spinner;
+
+
+use Combodo\iTop\Application\UI\Base\UIBlock;
+
+/**
+ * Class Spinner
+ *
+ * @package Combodo\iTop\Application\UI\Base\Component\Spinner
+ */
+class Spinner extends UIBlock
+{
+	// Overloaded constants
+	public const BLOCK_CODE = 'ibo-spinner';
+	public const DEFAULT_HTML_TEMPLATE_REL_PATH = 'base/components/spinner/layout';
+
+	protected $bIsHidden;
+
+	public function __construct(?string $sId = null)
+	{
+		parent::__construct($sId);
+		$this->bIsHidden = false;
+	}
+
+	/**
+	 * @return false
+	 */
+	public function IsHidden(): bool
+	{
+		return $this->bIsHidden;
+	}
+
+	/**
+	 * @param false $bIsHidden
+	 *
+	 * @return $this
+	 */
+	public function SetIsHidden(bool $bIsHidden)
+	{
+		$this->bIsHidden = $bIsHidden;
+		return $this;
+	}
+
+
+}