adding a ShareDeletedEvent

lib/composer/composer/autoload_classmap.php

@@ -477,6 +477,7 @@
     'OCP\\Settings\\ISubAdminSettings' => $baseDir . '/lib/public/Settings/ISubAdminSettings.php',
     'OCP\\Share' => $baseDir . '/lib/public/Share.php',
     'OCP\\Share\\Events\\ShareCreatedEvent' => $baseDir . '/lib/public/Share/Events/ShareCreatedEvent.php',
+    'OCP\\Share\\Events\\ShareDeletedEvent' => $baseDir . '/lib/public/Share/Events/ShareDeletedEvent.php',
     'OCP\\Share\\Events\\VerifyMountPointEvent' => $baseDir . '/lib/public/Share/Events/VerifyMountPointEvent.php',
     'OCP\\Share\\Exceptions\\GenericShareException' => $baseDir . '/lib/public/Share/Exceptions/GenericShareException.php',
     'OCP\\Share\\Exceptions\\IllegalIDChangeException' => $baseDir . '/lib/public/Share/Exceptions/IllegalIDChangeException.php',

lib/composer/composer/autoload_static.php

@@ -506,6 +506,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OCP\\Settings\\ISubAdminSettings' => __DIR__ . '/../../..' . '/lib/public/Settings/ISubAdminSettings.php',
         'OCP\\Share' => __DIR__ . '/../../..' . '/lib/public/Share.php',
         'OCP\\Share\\Events\\ShareCreatedEvent' => __DIR__ . '/../../..' . '/lib/public/Share/Events/ShareCreatedEvent.php',
+        'OCP\\Share\\Events\\ShareDeletedEvent' => __DIR__ . '/../../..' . '/lib/public/Share/Events/ShareDeletedEvent.php',
         'OCP\\Share\\Events\\VerifyMountPointEvent' => __DIR__ . '/../../..' . '/lib/public/Share/Events/VerifyMountPointEvent.php',
         'OCP\\Share\\Exceptions\\GenericShareException' => __DIR__ . '/../../..' . '/lib/public/Share/Exceptions/GenericShareException.php',
         'OCP\\Share\\Exceptions\\IllegalIDChangeException' => __DIR__ . '/../../..' . '/lib/public/Share/Exceptions/IllegalIDChangeException.php',

lib/private/Share20/Manager.php

@@ -1138,6 +1138,7 @@ protected function deleteChildren(IShare $share) {
 			$deletedShares = array_merge($deletedShares, $deletedChildren);
 
 			$provider->delete($child);
+			$this->dispatcher->dispatchTyped(new Share\Events\ShareDeletedEvent($child));
 			$deletedShares[] = $child;
 		}
 
@@ -1168,6 +1169,8 @@ public function deleteShare(IShare $share) {
 		$provider = $this->factory->getProviderForType($share->getShareType());
 		$provider->delete($share);
 
+		$this->dispatcher->dispatchTyped(new Share\Events\ShareDeletedEvent($share));
+
 		// All the deleted shares caused by this delete
 		$deletedShares[] = $share;
 

lib/public/Share/Events/ShareDeletedEvent.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2020, Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @author Maxence Lange <maxence@artificial-owl.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Share\Events;
+
+use OCP\EventDispatcher\Event;
+use OCP\Share\IShare;
+
+/**
+ * @since 21.0.0
+ */
+class ShareDeletedEvent extends Event {
+
+	/** @var IShare */
+	private $share;
+
+	/**
+	 *
+	 * @param IShare $share
+	 * @param IShare[] $children
+	 *
+	 * @since 21.0.0
+	 */
+	public function __construct(IShare $share) {
+		parent::__construct();
+
+		$this->share = $share;
+	}
+
+	/**
+	 * @return IShare
+	 * @since 21.0.0
+	 */
+	public function getShare(): IShare {
+		return $this->share;
+	}
+}

tests/lib/Share20/ManagerTest.php

@@ -209,6 +209,8 @@ public function testDelete($shareType, $sharedWith) {
 			->setMethods(['getShareById', 'deleteChildren'])
 			->getMock();
 
+		$manager->method('deleteChildren')->willReturn([]);
+
 		$path = $this->createMock(File::class);
 		$path->method('getId')->willReturn(1);
 
@@ -254,6 +256,8 @@ public function testDeleteLazyShare() {
 			->setMethods(['getShareById', 'deleteChildren'])
 			->getMock();
 
+		$manager->method('deleteChildren')->willReturn([]);
+
 		$share = $this->manager->newShare();
 		$share->setId(42)
 			->setProviderId('prov')