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Emitter.php 1.4 KB

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  1. <?php
  2. /**
  3. * @copyright Copyright (c) 2016, ownCloud, Inc.
  4. *
  5. * @author Jörn Friedrich Dreyer <jfd@butonic.de>
  6. * @author Morris Jobke <hey@morrisjobke.de>
  7. * @author Robin Appelman <robin@icewind.nl>
  8. *
  9. * @license AGPL-3.0
  10. *
  11. * This code is free software: you can redistribute it and/or modify
  12. * it under the terms of the GNU Affero General Public License, version 3,
  13. * as published by the Free Software Foundation.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU Affero General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU Affero General Public License, version 3,
  21. * along with this program. If not, see <http://www.gnu.org/licenses/>
  22. *
  23. */
  24. namespace OC\Hooks;
  25. /**
  26. * Class Emitter
  27. *
  28. * interface for all classes that are able to emit events
  29. *
  30. * @package OC\Hooks
  31. */
  32. interface Emitter {
  33. /**
  34. * @param string $scope
  35. * @param string $method
  36. * @param callable $callback
  37. * @return void
  38. */
  39. public function listen($scope, $method, callable $callback);
  40. /**
  41. * @param string $scope optional
  42. * @param string $method optional
  43. * @param callable $callback optional
  44. * @return void
  45. */
  46. public function removeListener($scope = null, $method = null, callable $callback = null);
  47. }