primo commit

layouts/joomla/toolbar/versions.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * @package     Joomla.Site
+ * @subpackage  Layout
+ *
+ * @copyright   (C) 2013 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\Session\Session;
+
+extract($displayData);
+
+/**
+ * Layout variables
+ * -----------------
+ * @var   string  $id
+ * @var   string  $itemId
+ * @var   string  $typeId
+ * @var   string  $typeAlias
+ * @var   string  $title
+ */
+
+/** @var Joomla\CMS\WebAsset\WebAssetManager $wa */
+$wa = Factory::getApplication()->getDocument()->getWebAssetManager();
+
+$wa->useScript('core')
+    ->useScript('joomla.dialog-autocreate')
+    ->useScript('webcomponent.toolbar-button');
+
+$url = 'index.php?' . http_build_query([
+    'option'                => 'com_contenthistory',
+    'view'                  => 'history',
+    'layout'                => 'modal',
+    'tmpl'                  => 'component',
+    'item_id'               => $itemId,
+    Session::getFormToken() => 1,
+]);
+
+
+$dialogOptions = [
+    'popupType'  => 'iframe',
+    'src'        => $url,
+    'textHeader' => $title ?? '',
+];
+
+?>
+<joomla-toolbar-button id="toolbar-versions">
+    <button
+        class="btn btn-primary"
+        data-joomla-dialog="<?php echo $this->escape(json_encode($dialogOptions, JSON_UNESCAPED_SLASHES)); ?>"
+        type="button">
+        <span class="icon-code-branch" aria-hidden="true"></span>
+        <?php echo $title; ?>
+    </button>
+</joomla-toolbar-button>