1 files changed, 85 insertions, 0 deletions
diff --git a/lib/public/SystemTag/ManagerEvent.php b/lib/public/SystemTag/ManagerEvent.php
new file mode 100644
index 00000000000..adfe64f8658
--- /dev/null
+++ b/lib/public/SystemTag/ManagerEvent.php
@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OCP\SystemTag;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class ManagerEvent
+ *
+ * @since 9.0.0
+ */
+class ManagerEvent extends Event {
+	/**
+	 * @since 9.0.0
+	 * @deprecated 22.0.0
+	 */
+	public const EVENT_CREATE = 'OCP\SystemTag\ISystemTagManager::createTag';
+
+	/**
+	 * @since 9.0.0
+	 * @deprecated 22.0.0
+	 */
+	public const EVENT_UPDATE = 'OCP\SystemTag\ISystemTagManager::updateTag';
+
+	/**
+	 * @since 9.0.0
+	 * @deprecated 22.0.0
+	 */
+	public const EVENT_DELETE = 'OCP\SystemTag\ISystemTagManager::deleteTag';
+
+	/** @var string */
+	protected $event;
+	/** @var ISystemTag */
+	protected $tag;
+	/** @var ISystemTag */
+	protected $beforeTag;
+
+	/**
+	 * DispatcherEvent constructor.
+	 *
+	 * @param string $event
+	 * @param ISystemTag $tag
+	 * @param ISystemTag|null $beforeTag
+	 * @since 9.0.0
+	 */
+	public function __construct(string $event, ISystemTag $tag, ?ISystemTag $beforeTag = null) {
+		$this->event = $event;
+		$this->tag = $tag;
+		$this->beforeTag = $beforeTag;
+	}
+
+	/**
+	 * @return string
+	 * @since 9.0.0
+	 */
+	public function getEvent(): string {
+		return $this->event;
+	}
+
+	/**
+	 * @return ISystemTag
+	 * @since 9.0.0
+	 */
+	public function getTag(): ISystemTag {
+		return $this->tag;
+	}
+
+	/**
+	 * @return ISystemTag
+	 * @since 9.0.0
+	 * @throws \BadMethodCallException
+	 */
+	public function getTagBefore(): ISystemTag {
+		if ($this->event !== self::EVENT_UPDATE) {
+			throw new \BadMethodCallException('getTagBefore is only available on the update Event');
+		}
+		return $this->beforeTag;
+	}
+}