Add a contacts filter

Signed-off-by: Joas Schilling <coding@schilljs.com>

apps/dav/appinfo/info.xml

@@ -68,6 +68,7 @@
 		<filters>
 			<filter>OCA\DAV\CalDAV\Activity\Filter\Calendar</filter>
 			<filter>OCA\DAV\CalDAV\Activity\Filter\Todo</filter>
+			<filter>OCA\DAV\CardDAV\Activity\Filter</filter>
 		</filters>
 
 		<providers>

apps/dav/composer/composer/autoload_classmap.php

@@ -85,6 +85,7 @@ return array(
     'OCA\\DAV\\CalDAV\\WebcalCaching\\Plugin' => $baseDir . '/../lib/CalDAV/WebcalCaching/Plugin.php',
     'OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService' => $baseDir . '/../lib/CalDAV/WebcalCaching/RefreshWebcalService.php',
     'OCA\\DAV\\Capabilities' => $baseDir . '/../lib/Capabilities.php',
+    'OCA\\DAV\\CardDAV\\Activity\\Filter' => $baseDir . '/../lib/CardDAV/Activity/Filter.php',
     'OCA\\DAV\\CardDAV\\AddressBook' => $baseDir . '/../lib/CardDAV/AddressBook.php',
     'OCA\\DAV\\CardDAV\\AddressBookImpl' => $baseDir . '/../lib/CardDAV/AddressBookImpl.php',
     'OCA\\DAV\\CardDAV\\AddressBookRoot' => $baseDir . '/../lib/CardDAV/AddressBookRoot.php',

apps/dav/composer/composer/autoload_static.php

@@ -100,6 +100,7 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\CalDAV\\WebcalCaching\\Plugin' => __DIR__ . '/..' . '/../lib/CalDAV/WebcalCaching/Plugin.php',
         'OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService' => __DIR__ . '/..' . '/../lib/CalDAV/WebcalCaching/RefreshWebcalService.php',
         'OCA\\DAV\\Capabilities' => __DIR__ . '/..' . '/../lib/Capabilities.php',
+        'OCA\\DAV\\CardDAV\\Activity\\Filter' => __DIR__ . '/..' . '/../lib/CardDAV/Activity/Filter.php',
         'OCA\\DAV\\CardDAV\\AddressBook' => __DIR__ . '/..' . '/../lib/CardDAV/AddressBook.php',
         'OCA\\DAV\\CardDAV\\AddressBookImpl' => __DIR__ . '/..' . '/../lib/CardDAV/AddressBookImpl.php',
         'OCA\\DAV\\CardDAV\\AddressBookRoot' => __DIR__ . '/..' . '/../lib/CardDAV/AddressBookRoot.php',

apps/dav/lib/CardDAV/Activity/Filter.php

@@ -0,0 +1,93 @@
+<?php
+/**
+ * @copyright Copyright (c) 2021 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.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 OCA\DAV\CardDAV\Activity;
+
+use OCP\Activity\IFilter;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+
+class Filter implements IFilter {
+
+	/** @var IL10N */
+	protected $l;
+
+	/** @var IURLGenerator */
+	protected $url;
+
+	public function __construct(IL10N $l, IURLGenerator $url) {
+		$this->l = $l;
+		$this->url = $url;
+	}
+
+	/**
+	 * @return string Lowercase a-z and underscore only identifier
+	 * @since 11.0.0
+	 */
+	public function getIdentifier(): string {
+		return 'contacts';
+	}
+
+	/**
+	 * @return string A translated string
+	 * @since 11.0.0
+	 */
+	public function getName(): string {
+		return $this->l->t('Contacts');
+	}
+
+	/**
+	 * @return int whether the filter should be rather on the top or bottom of
+	 * the admin section. The filters are arranged in ascending order of the
+	 * priority values. It is required to return a value between 0 and 100.
+	 * @since 11.0.0
+	 */
+	public function getPriority(): int {
+		return 40;
+	}
+
+	/**
+	 * @return string Full URL to an icon, empty string when none is given
+	 * @since 11.0.0
+	 */
+	public function getIcon(): string {
+		return $this->url->getAbsoluteURL($this->url->imagePath('core', 'places/contacts.svg'));
+	}
+
+	/**
+	 * @param string[] $types
+	 * @return string[] An array of allowed apps from which activities should be displayed
+	 * @since 11.0.0
+	 */
+	public function filterTypes(array $types): array {
+		return array_intersect(['contacts'], $types);
+	}
+
+	/**
+	 * @return string[] An array of allowed apps from which activities should be displayed
+	 * @since 11.0.0
+	 */
+	public function allowedApps(): array {
+		return [];
+	}
+}