ext.php

<?php
/**
 *
 * phpBB mentions. An extension for the phpBB Forum Software package.
 *
 * @copyright (c) 2016, paul999, https://www.phpbbextensions.io
 * @license GNU General Public License, version 2 (GPL-2.0)
 *
 */

namespace paul999\mention;

/**
 * phpBB mentions Extension base
 *
 */
class ext extends \phpbb\extension\base
{
	/**
	 * Enable notifications for the extension
	 *
	 * @param mixed $old_state State returned by previous call of this method
	 *
	 * @return mixed Returns false after last step, otherwise temporary state
	 */
	public function enable_step($old_state)
	{
		switch ($old_state)
		{
			case '': // Empty means nothing has run yet

				$phpbb_notifications = $this->container->get('notification_manager');
				$phpbb_notifications->enable_notifications('paul999.mention.notification.type.mention');
				return 'notification';

			break;

			default:

				return parent::enable_step($old_state);

			break;
		}
	}

	/**
	 * Disable notifications for the extension
	 *
	 * @param mixed $old_state State returned by previous call of this method
	 *
	 * @return mixed Returns false after last step, otherwise temporary state
	 */
	public function disable_step($old_state)
	{
		switch ($old_state)
		{
			case '': // Empty means nothing has run yet

				$phpbb_notifications = $this->container->get('notification_manager');
				$phpbb_notifications->disable_notifications('paul999.mention.notification.type.mention');
				return 'notification';

			break;

			default:

				return parent::disable_step($old_state);

			break;
		}
	}

	/**
	 * Purge notifications for the extension
	 *
	 * @param mixed $old_state State returned by previous call of this method
	 *
	 * @return mixed Returns false after last step, otherwise temporary state
	 */
	public function purge_step($old_state)
	{
		switch ($old_state)
		{
			case '': // Empty means nothing has run yet

				$phpbb_notifications = $this->container->get('notification_manager');
				$phpbb_notifications->purge_notifications('paul999.mention.notification.type.mention');
				return 'notification';

			break;

			default:

				return parent::purge_step($old_state);

			break;
		}
	}
}