Dispatch events when tags are added/updated/deleted

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..a0429fc9f67
--- /dev/null
+++ b/lib/public/systemtag/managerevent.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OCP\SystemTag;
+
+use Symfony\Component\EventDispatcher\Event;
+
+/**
+ * Class ManagerEvent
+ *
+ * @package OCP\SystemTag
+ * @since 9.0.0
+ */
+class ManagerEvent extends Event {
+
+	const EVENT_CREATE = 'OCP\SystemTag\ISystemTagManager::createTag';
+	const EVENT_UPDATE = 'OCP\SystemTag\ISystemTagManager::updateTag';
+	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 $beforeTag
+	 * @since 9.0.0
+	 */
+	public function __construct($event, ISystemTag $tag, ISystemTag $beforeTag = null) {
+		$this->event = $event;
+		$this->tag = $tag;
+		$this->beforeTag = $beforeTag;
+	}
+
+	/**
+	 * @return string
+	 * @since 9.0.0
+	 */
+	public function getEvent() {
+		return $this->event;
+	}
+
+	/**
+	 * @return ISystemTag
+	 * @since 9.0.0
+	 */
+	public function getTag() {
+		return $this->tag;
+	}
+
+	/**
+	 * @return ISystemTag
+	 * @since 9.0.0
+	 */
+	public function getTagBefore() {
+		if ($this->event !== self::EVENT_UPDATE) {
+			throw new \BadMethodCallException('getTagBefore is only available on the update Event');
+		}
+		return $this->beforeTag;
+	}
+}