first commit

layouts/joomla/toolbar/versions.php

@@ -0,0 +1,71 @@
+<?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\HTML\HTMLHelper;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Session\Session;
+
+extract($displayData, EXTR_OVERWRITE);
+
+/**
+ * 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::getDocument()->getWebAssetManager();
+$wa->getRegistry()->addExtensionRegistryFile('com_contenthistory');
+
+$wa->useScript('core')
+    ->useScript('webcomponent.toolbar-button')
+    ->useScript('com_contenthistory.admin-history-versions');
+
+echo HTMLHelper::_(
+    'bootstrap.renderModal',
+    'versionsModal',
+    [
+        'url'    => 'index.php?' . http_build_query(
+            [
+                'option' => 'com_contenthistory',
+                'view' => 'history',
+                'layout' => 'modal',
+                'tmpl' => 'component',
+                'item_id' => $itemId,
+                Session::getFormToken() => 1
+            ]
+        ),
+        'title'  => $title,
+        'height' => '100%',
+        'width'  => '100%',
+        'modalWidth'  => '80',
+        'bodyHeight'  => '60',
+        'footer' => '<button type="button" class="btn btn-secondary" data-bs-dismiss="modal" aria-hidden="true">'
+            . Text::_('JLIB_HTML_BEHAVIOR_CLOSE') . '</button>'
+    ]
+);
+?>
+<joomla-toolbar-button id="toolbar-versions">
+    <button
+        class="btn btn-primary"
+        type="button"
+        data-bs-target="#versionsModal"
+        data-bs-toggle="modal">
+        <span class="icon-code-branch" aria-hidden="true"></span>
+        <?php echo $title; ?>
+    </button>
+</joomla-toolbar-button>